CN220289908U - Optical fiber connector and optical fiber connection assembly - Google Patents

Abstract

The application relates to an optical fiber connector and an optical fiber connection assembly, wherein the optical fiber connector comprises an inner pipe main body for bearing a ferrule assembly; a rotary jacket sleeved outside the inner tube main body, and an annular gap for the connection seat of the optical fiber adapter to pass through is formed between the rotary jacket and the inner tube main body; the protective sleeve is sleeved outside the inner pipe main body and clamped between the inner pipe main body and the rotary outer sleeve, and can slide back and forth along the axial direction of the inner pipe main body in a limited stroke, so that the end part of the ferrule assembly protrudes out of or is immersed into the protective sleeve; an elastic member for driving the protective sleeve to maintain the protective sleeve in a state of protruding the end of the ferrule assembly in a free state; wherein the ends of the ferrule assembly are configured as guide structures that mate blindly with the fiber optic adapter. This application is through improving the fiber connector for it can protect the lock pin subassembly, and the existence of protective sheath also can assist the effect that realizes direction or further fastening according to the difference of adapter simultaneously.

Description

Optical fiber connector and optical fiber connection assembly

Technical Field

The present disclosure relates to the field of prefabricated optical fiber connectors, and more particularly to an optical fiber connector and an optical fiber connection assembly.

Background

Optical fiber connectors are used in optical fiber communication systems for making connections between optical cables, between optical cables and optoelectronic components, and between optoelectronic components. The end faces of two optical fibers to be connected are precisely butted, so that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent.

The most common connection mode between a prefabricated waterproof optical fiber adapter and an optical fiber connector in the market at present is generally constructed as an L-shaped groove type butt joint structure, the center of the adapter is constructed as a jack for axially inserting a ferrule assembly, and the outer ring of the adapter is designed with a male head connection L-shaped connection groove for the adapter. In the connection process, the axial butt joint between the optical fiber adapter and the optical fiber connector can be realized only by synchronously ensuring that the core inserting assembly is opposite to the jack and the connecting groove is opposite to the connecting block on the optical fiber connector, so that the assembly efficiency is lower.

In this regard, the applicant disclosed 2021115289692 a solution in which the end of the ferrule holder is configured as a guide ring, and the guide ring is limited in size to a size such that the axial projection falls within the axial projection of the ferrule holder, so that the ferrule holder can be partially inserted into the receptacle of the adapter in any posture during the blind mating of the optical fiber connector and the optical fiber adapter, and thus the ferrule holder can be fully inserted into the receptacle by rotating the optical fiber connector to find a state in which the ferrule holder is directly opposite to the receptacle.

However, since the ferrule and the ferrule support are completely exposed outside the optical fiber connector, no matter in the initial stage of the connection state or in the transportation process, the ferrule and the ferrule support are very easy to collide with each other to affect the subsequent butt joint effect, so that a solution is needed to be provided on the basis of the method for solving the problems.

Disclosure of Invention

In order to protect a ferrule holder with a guide structure at the end part in the butt joint process and the transportation process, the application provides an optical fiber connector and an optical fiber connection assembly.

In a first aspect, the present application provides an optical fiber connector that adopts the following technical scheme:

an optical fiber connector, comprising,

the inner tube main body is used for bearing the ferrule assembly;

a rotary jacket sleeved outside the inner tube main body, and an annular gap for the connection seat of the optical fiber adapter to pass through is formed between the rotary jacket and the inner tube main body;

the protection sleeve is sleeved outside the inner pipe main body and clamped between the inner pipe main body and the rotary outer sleeve, and can slide back and forth along the axial direction of the inner pipe main body in a limited stroke so that the end part of the core inserting assembly protrudes out or is immersed into the protection sleeve;

an elastic member for driving the protective sleeve to maintain the protective sleeve in a state of protruding the end of the ferrule assembly in a free state;

wherein the ends of the ferrule assembly are configured as guide structures for blind mating with receptacles of a fiber optic adapter.

Through adopting above-mentioned technical scheme, in the transportation, because the effect of protective sheath, the side of lock pin subassembly can not directly expose in the outside, when receiving the extrusion and the impact of side direction, can offset and avoid the lock pin subassembly directly to receive the extrusion through the protective sheath. In the process of docking with the optical fiber adapter, the protective sleeve can be contacted with the optical fiber adapter first, so that the ferrule assembly is prevented from directly colliding with the optical fiber adapter.

Preferably, the ferrule assembly includes a ferrule holder disposed at one end of the inner tube body for insertion into a receptacle of the fiber optic adapter, the end of the ferrule holder having a guide ring whose axial projection falls within the axial projection of the ferrule holder.

Preferably, the sliding sleeve is arranged outside the inner pipe body and connected with the rotating sleeve, the connecting base seals one end of the annular gap to enable the annular gap to be opened unidirectionally, the elastic component is arranged in the annular gap, and the elastic component is respectively abutted with the protective sleeve and the connecting base to force the protective sleeve and the connecting base to be far away from each other.

Preferably, the connection base has a penetrating space communicated with the annular gap and used for the protection sleeve to penetrate, and an abutting part attached to the inner pipe body is formed on the connection base and located on the inner side of the penetrating space.

Through adopting above-mentioned technical scheme, this kind of mode has optimized the inner tube main part and has rotated the spatial structure between the overcoat for the area of the attached part of connection base and inner tube main part is as big as possible, consequently under the prerequisite that satisfies the joint strength between connection base and the inner tube main part, can reduce the holistic space that occupies of fiber connector again as far as possible, makes its overall arrangement can be higher on passive equipment such as divide fine case.

Preferably, the rotating jacket is internally provided with an inner limiting part, the protecting sleeve is externally provided with an outer limiting part, and the inner limiting part and the outer limiting part are mutually abutted so as to limit the protecting sleeve to be separated from the annular gap along the end part of the optical fiber connector.

Preferably, the rotating jacket can perform certain axial limiting sliding with the inner tube main body, the optical fiber connector further comprises a fastening elastic piece, the fastening elastic piece is arranged in the annular gap, the inner tube main body is provided with a convex part which protrudes outwards, and two ends of the fastening elastic piece are respectively abutted against the convex part and the connecting base to force the two parts to be always away from each other.

Through adopting above-mentioned technical scheme, the fastening elastic component provides the reverse fastening force of the rotation overcoat that supplies after fiber connector and the butt joint of fiber adapter to it is more reliable in the in-process of being connected with fiber adapter, reduces the possibility that takes place to reverse and breaks away from, and if under the state that the protective sheath was retracted, the protective sheath also can exert a fastening force to the connection base, thereby still can satisfy better fastening effect under the condition that either one of fastening elastic component or elastic component became invalid or elastic modulus is insufficient, makes the connection more reliable.

Preferably, a first sealing part is clamped between the inner pipe main body and the connecting base, and the first sealing part is always positioned between the inner pipe main body and the connecting base in the process that the connecting base axially slides along the inner pipe main body.

Preferably, the connecting base is in threaded connection with the rotating outer sleeve, a second sealing component is clamped between the connecting base and the rotating outer sleeve, and one end face of the rotating outer sleeve is abutted to the connecting base.

In a second aspect, the present application provides an optical fiber connection assembly that adopts the following technical scheme:

an optical fiber connection assembly comprises an optical fiber adapter and the optical fiber connector, wherein the optical fiber adapter and the optical fiber connector are mutually butted in the axial direction.

Preferably, the optical fiber adapter is provided with a ring groove for inserting the protective sleeve.

To sum up, this application is through improving the fiber connector for it can protect the lock pin subassembly, and the existence of protective sheath also can assist the effect that realizes direction or further fastening according to the difference of fiber optic adapter simultaneously.

Drawings

Fig. 1 is a schematic view of a fiber optic adapter with a ring-groove-free end face.

Fig. 2 is a schematic structural view of an optical fiber connector.

FIG. 3 is a schematic illustration of the connection of the ferrule holder to the fiber optic adapter, specifically with the ferrule holder not fully aligned with the receptacle.

FIG. 4 is a schematic illustration of the connection of a ferrule holder to an optical fiber adapter, specifically with the ferrule holder facing the receptacle.

Fig. 5 is a schematic cross-sectional view of an optical fiber connector in a free state.

Fig. 6 is a schematic view of a fiber optic adapter having a ring groove structure on the end face.

FIG. 7 is a schematic cross-sectional view of a fiber optic connector mated with a fiber optic adapter having a circumferential groove therein, with the protective sheath not retracted.

FIG. 8 is a schematic cross-sectional view of an optical fiber connector in mating engagement with an optical fiber adapter without a ring groove structure.

FIG. 9 is a schematic cross-sectional view of a fiber optic connector mated with a fiber optic adapter having a circumferential groove and a protective sleeve partially retracted.

FIG. 10 is a schematic view of the interface with the fiber optic connector when both ends of the fiber optic adapter are configured as connector blocks.

Reference numerals illustrate: 11. a base; 12. a connecting seat; 13. a jack; 131. unfilled corners; 14. a connecting groove; 15. a groove return; 16. a ring groove; 2. an inner tube main body; 21. a protruding portion; 22. a first sealing member; 3. rotating the outer sleeve; 31. an inner limit part; 32. a second sealing member; 33. locking the convex points; 4. a protective sleeve; 41. an outer limit part; 5. a ferrule assembly; 51. a ferrule support; 511. chamfering the inclined plane; 512. a guide ring; 513. an inclined surface; 52. a contact pin; 6. an annular gap; 7. an elastic member; 8. a connecting base; 81. a connection part; 82. an abutting portion; 83. a penetrating space is formed; 9. fastening the elastic member; 10. and (5) a retainer ring.

Detailed Description

The descriptions of the upper side and the lower side in the embodiments of the present application are described with respect to the upper side and the lower side of the drawings, the spring, the thread, and the drawings merely represent the components, and the number of turns and the dimensions shown in the drawings should not be used as components of the corresponding number of turns and the dimensions in the embodiments.

The present application is described in further detail below in conjunction with figures 1-10.

The embodiment of the application discloses an optical fiber connector, it is used for being connected with the optical fiber adapter in order to realize the optical path, generally speaking, the optical fiber adapter is installed on passive equipment such as divide fine case, and through the waterproof sealing that constitutes after optical fiber connector is connected with the optical fiber connector, wherein, refer to fig. 1, the optical fiber adapter includes base 11, it is used for connecting on the box body of divide fine case, the outside extension of one side of base 11 forms connecting seat 12, the center of connecting seat 12 has jack 13, jack 13 roughly takes the cuboid, but the adjacent two apex angles of jack 13 have a tilting unfilled corner 131, make the structure that matches with jack 13 only can insert in jack 13 along same state. Further, two connecting grooves 14 are formed on the outer side of the connecting base 12, the connecting grooves 14 are substantially L-shaped and communicate with one end of the connecting base 12, and the other end of the connecting grooves 14 has a return groove 15 extending in the opening direction of the insertion hole 13.

Referring to fig. 2, the optical fiber connector includes an inner tube body 2, a rotary jacket 3 and a protective sleeve 4, wherein one end of the inner tube body 2 is used for bearing a ferrule assembly 5, the other end is used for connecting a prefabricated optical cable, the rotary jacket 3 is sleeved outside the inner tube body 2 and can rotate around the inner tube body 2, the rotary jacket 3 and the inner tube body 2 form an annular gap 6 with one end open, and the ferrule assembly 5 extends out of the annular gap 6. The protection sleeve 4 is sleeved outside the inner pipe main body 2 and is clamped between the inner pipe main body 2 and the rotary outer sleeve 3, and the protection sleeve 4 can slide back and forth along the axial direction of the inner pipe main body 2 in a limited stroke, so that the end part of the ferrule assembly 5 protrudes or is immersed into the protection sleeve 4. During the process of connecting the optical fiber connector and the optical fiber adapter, the rotating outer sleeve 3 is sleeved outside the connecting seat 12 of the optical fiber adapter, and the ferrule assembly 5 is correspondingly inserted into the jack 13.

Referring to fig. 2, 3 and 4, the ferrule assembly 5 includes a ferrule holder 51 and a pin 52 protruding from the ferrule holder 51, the pin 52 for interfacing with a pin 52 end face connected to the other end of the fiber optic adapter to maximize coupling of light to the other end, and the ferrule holder 51 for insertion into the receptacle 13 on the fiber optic adapter. When the ferrule holder 51 is fully inserted into the fiber optic adapter, the swivel housing 3 is positioned outside the connector 12 of the fiber optic adapter.

The entire ferrule holder 51 is configured as an adapting structure having a shape similar to that of the insertion hole 13, so that the ferrule holder 51 can be inserted into the insertion hole 13 in only one state, and thus, the entire ferrule holder 51 is also substantially rectangular in structure corresponding to the two unfilled corners 131 in the insertion hole 13, and the ferrule holder 51 is also provided with two corresponding beveled chamfers 511 on the corresponding portions.

The end of the ferrule holder 51 is integrally provided with a guide ring 512, the guide ring 512 is disposed around the circumference of the pin 52 and is coaxial with the pin 52, and the inner wall of the guide ring 512 and the inner wall of the ferrule holder 51 are on the same cylindrical surface. The axial projection of the outer diameter surface of the guide ring 512 falls within the axial projection of the ferrule holder 51, so that the guide ring 512 can be inserted into the insertion hole 13 in any circumferential posture. The end of the ferrule holder 51 that is connected to the guide ring 512 has an inclined surface 513 that is located in the circumferential direction of the guide ring 512 and connects to the guide ring 512. Specifically, the inclined surface 513 is formed to be convex and located on the same spherical surface, and gradually increases in diameter in a direction away from the guide ring 512. Preferably, the inclined surface 513 is spherical in shape so that the ferrule holder 51 can still have stable contact points with the circumference of the receptacle 13 when the axial angle is deviated. Meanwhile, the outer arc surface is always circular under the radial tangent plane of the inclined surface 513, so that the rotation of the ferrule holder 51 is more stable.

Based on this, in the process of inserting the ferrule holder 51 and the insertion hole 13, the guide ring 512 does not need to be corrected to a fixed position, and it can be seen that in the arrangement of the guide ring 512, the outer diameter thereof is smaller than the radius of the inscribed circle inscribed in the insertion hole 13, so that the guide ring 512 can be inserted into the insertion hole 13 more easily. Then, since the guide ring 512 is not located exactly at the center of the ferrule holder 51 in the insertion hole 13, by applying an axial insertion force to the optical fiber connector, the inclined surface 513 in the axial direction of the guide ring 512 can be made to abut against the edge of the insertion hole 13, and the entire ferrule holder 51 can be made to have a tendency to move toward the center of the insertion hole 13 under the guiding action of the inclined surface 513. When the ferrule holder 51 is rotated (i.e., the inner tube body 2 is driven to rotate) under the foundation, the guide ring 512 is always in the range defined by the insertion hole 13, so that the ferrule holder 51 and the connection seat 12 can be always in a radially relatively limited state, and the guide ring 512 cannot be separated from the insertion hole 13 under the application of axial force. Thus, by rotating the ferrule holder 51 such that the axial projections of the ferrule holder 51 and the receptacle 13 coincide with each other, the ferrule holder 51 is inserted into the receptacle 13 under the action of the axial force.

Therefore, in this embodiment, only by inserting the guide ring 512 into the insertion hole 13 and rotating the ferrule holder 51, the ferrule holder 51 may be inserted into the insertion hole 13 on the premise of blind mating, and there is no need to limit the ferrule holder 51 and the insertion hole 13 to a state in which axial projections overlap with each other before the insertion of the ferrule holder 51.

Referring to fig. 2 and 5, in order to protect the ferrule assembly 5 to prevent the ferrule assembly 5 from directly colliding with the ferrule assembly 5 when the ferrule assembly 5 is squeezed by external force from a side or other directions, the protection sleeve 4 is driven by the elastic member 7 disposed between the rotating outer sleeve 3 and the inner tube main body 2 to maintain a state protruding the end of the ferrule assembly 5, and in the state that the optical fiber connector is not connected to the optical fiber adapter, for example, fig. 5, the protection sleeve 4 is at one end of the limited stroke, and at this time, the ferrule assembly 5 falls into the radial projection of the protection sleeve 4 completely when viewed from the radial direction of the optical fiber connector. Under the condition, when the optical fiber connector is connected with the optical fiber adapter, the optical fiber connector firstly collides with the end face of the optical fiber adapter, and the protective sleeve 4 retracts against the acting force of the elastic component 7 along with the continuous pushing of the optical fiber connector, so that the ferrule assembly 5 can be abutted with the jack 13. The end face of the protective sleeve 4 is parallel to the radial face of the optical fiber connector, so that the protective sleeve 4 can not interfere in the process of rotating the whole optical fiber connector.

Specifically, the inner tube main body 2 is sleeved with a connecting base 8, the connecting base 8 is connected with one end of the rotating outer sleeve 3 and seals one end of the annular gap 6 so that the annular gap 6 is opened unidirectionally for the protecting sleeve 4 to extend out, the elastic component 7 is arranged in the annular gap 6, and the elastic component 7 is respectively abutted with the protecting sleeve 4 and the connecting base 8 to force the protecting sleeve 4 and the connecting base 8 to be far away from each other. As a preferred embodiment, the elastic member 7 is selected as a compression spring and is sleeved outside the inner tube main body 2.

Specifically, the connection base 8 is axially divided into a connection portion 81 connected with the rotating outer sleeve 3 and an abutting portion 82 for attaching to and wrapping around the outer periphery of the inner tube main body 2, the connection portion 81 seals one end of the annular gap 6, the abutting portion 82 extends into the annular gap 6 through the connection portion 81, and a penetrating space 83 which is communicated with the annular gap 6 and used for the protective sleeve 4 to penetrate is formed between the outer side of the abutting portion 82 and the rotating outer sleeve 3. Further, the elastic member 7 is also inserted into the insertion space 83. As the protective sheath 4 retreats, the elastic member 7 is compressed and gradually retracted into the penetration space 83, and the protective sheath 4 may also be partially penetrated into the penetration space 83. Therefore, compared with a mode of not providing the abutting portion 82, the area of the connecting base 8 wrapping the inner pipe main body 2 is enlarged, and the stability of the connecting base 8 and the inner pipe main body 2 is improved; compared with the mode of arranging the thicker connecting part 81, the mode shortens the whole axial space between the rotating outer sleeve 3 and the connecting base 8, reduces the whole occupied volume of the optical fiber connector, and can lead the optical fiber connector to be more densely arranged with the optical fiber connector under the condition of laying the optical fiber connector in a large area.

On this basis, in order to hinder the axial detachment of the rotating outer sleeve 3 from the protective sleeve 4, the rotating outer sleeve 3 is internally provided with an inner limiting portion 31, the protective sleeve 4 is externally provided with an outer limiting portion 41, the inner limiting portion 31 and the outer limiting portion 41 are mutually abutted to limit the protective sleeve 4 to separate from the annular gap 6 along the end portion of the optical fiber connector, and the outer limiting portion 41 of the protective sleeve 4 is always limited between the connecting base 8 and the inner limiting portion 31, so that the protective sleeve 4 cannot separate from the optical fiber connector. The elastic member 7 always keeps the outer limit portion 41 and the inner limit portion 31 in contact with each other.

The part of the inner tube main body 2, which is close to the bearing core insert assembly 5, is provided with a convex protrusion part 21, a fastening elastic piece 9 is sleeved on the inner tube main body 2 and positioned between the protrusion part 21 and the connecting base 8, and two ends of the fastening elastic piece 9 are respectively abutted with the protrusion part 21 of the inner tube main body 2 and the abutting part 82 of the connecting base 8 so as to force the two parts to be always far away from each other. Meanwhile, a retainer ring 10 is clamped on the inner pipe main body 2, and the retainer ring 10 is positioned on one side of the connection base 8, which is away from the annular gap 6, so as to limit the travel of the connection base 8. Therefore, the connection base 8 is restrained between the retainer ring 10 and the protruding portion 21 by the retainer ring 10 and the protruding portion 21. As a preferred embodiment, the fastening spring 9 is also selected as a compression spring.

During the process of docking the optical fiber connector with the optical fiber adapter, as the ferrule assembly 5 is inserted into the insertion hole 13, the locking convex points 33 in the rotating outer sleeve 3 facing the annular gap 6 correspondingly penetrate into the connecting grooves 14, and as the rotating outer sleeve 3 is rotated later, the locking convex points 33 enter the end points of the L-shaped connecting grooves 14, and then the rotating outer sleeve 3 is retracted under the action of the fastening elastic piece 9, so that the locking convex points 33 rebound and are blocked into the return grooves 15, and the locking convex points 33 cannot be retracted into the L-shaped connecting grooves 14 only by simple rotation. It is thus known that the magnitude of the axial restoring force of the rotating outer sleeve 3 provides the strength of the connection when the rotating outer sleeve 3 is mated with the fiber optic connector.

With reference to fig. 6 and 7, in one possible implementation manner of the optical fiber adapter, the surface of the connection seat 12 has a ring groove 16 that is disposed around the jack 13 and through which the protection sleeve 4 passes, and this arrangement may enable the optical fiber connector to play a certain guiding role in the process of docking with the optical fiber adapter, and by disposing the protection sleeve 4 through the ring groove 16, when the ferrule assembly 5 is not inserted into the jack 13, the optical fiber connector and the optical fiber adapter may satisfy the coaxial requirement, so that the guiding ring 512 at the end of the ferrule assembly 5 may be stably inserted into the jack 13, thereby implementing the subsequent blind mating operation.

In another possible implementation manner, referring to fig. 8, the surface of the connection seat 12 is flat, during the process of abutting the optical fiber adapter with the optical fiber connector, the protection sleeve 4 will abut against the surface of the connection seat 12 and continuously retract, after the optical fiber adapter is reliably connected with the optical fiber connector, the protection sleeve 4 will be in a retracted state, at this time, the outer limiting portion 41 is not in contact with the inner limiting portion 31, and since the protection sleeve 4 abuts against the surface of the connection seat 12, the elastic member 7 will apply a retraction force to the connection base 8 in the opposite direction, so that the rotating outer sleeve 3 will retract under the combined action of the elastic member 7 and the fastening elastic member 9, and thus the stable connection between the rotating outer sleeve 3 and the connection seat 12 can be more stably maintained. At the same time, the fastening function can be well maintained when the elasticity of the fastening elastic member 9 is reduced. In addition, because the end face of the protecting sleeve 4 is parallel to the radial face of the optical fiber connector, when the protecting sleeve 4 is in contact with the connecting seat 12, the optical fiber connector cannot excessively deviate from the optical fiber adapter in the axial direction, and subsequent butt joint is facilitated. It should be noted that there is a certain groove structure on the surface of the connecting seat 12, but the requirement should be met if the protective sleeve 4 cannot be fully inserted and can be retracted.

Thus, as a possible way, referring to fig. 9, the annular groove 16 may be provided on the outer circumference of the insertion hole 13, but the depth thereof satisfies the requirement that the protective sheath 4 is still in the retracted state after the optical fiber connector is docked with the optical fiber adapter, so as to satisfy the primary positioning guide and improve the fastening force. The axial length of the protective sleeve 4 can be correspondingly adjusted according to the difference of the optical fiber adapters (i.e. whether the ring groove 16 is arranged) and the sliding travel of the protective sleeve 4 can be adjusted by adjusting the axial space between the inner limiting part 31 and the connecting base 8, so that the condition that the ferrule assembly 5 is immersed in the protective sleeve 4 in a free state is only required.

Further, referring back to fig. 5, a first sealing member 22 is interposed between the inner tube main body 2 and the connection base 8, and the first sealing member 22 is always located between the inner tube main body 2 and the connection base 8 during the axial sliding of the connection base 8 along the inner tube main body 2. The connecting base 8 is in threaded connection with the rotating outer sleeve 3, a second sealing part 32 is clamped between the connecting base 8 and the rotating outer sleeve 3, and one end face of the rotating outer sleeve 3 is abutted against the connecting base 8. The arrangement of the first sealing part 22 and the second sealing part 32 meets the waterproof sealing between the inner pipe main body 2 and the connecting base 8 and between the connecting base 8 and the rotating outer sleeve 3, so that in the process of connecting the optical fiber connector and the optical fiber adapter, water and other mediums cannot enter through gaps between the inner pipe main body 2 and the connecting base 8 and between the connecting base 8 and the rotating outer sleeve 3, and the butting effect of the optical fibers is improved.

Similarly, the first sealing member 22 increases the rotation resistance between the inner tube body 4 and the connection base 8, and the inner tube body 4 and the rotation sleeve 3 are always considered to be relatively fixed due to the large friction resistance even though the entire optical fiber connector rotates during the process of inserting the ferrule assembly 5 into the insertion hole 13 in the corresponding state, so that the inner ferrule assembly 5 can be correspondingly driven to rotate by rotating the outer rotation sleeve 3.

As a specific implementation, both the first sealing member 22 and the second sealing member 32 are selected as sealing rings. The first sealing member 22 is mounted on the inner tube main body 2 in a clamping manner, and the second sealing member 32 is sleeved on the threaded section of the connection base 8. During the process of the connection base 8 and the inner tube main body 2 rotating relatively in the circumferential direction or sliding relatively in the axial direction, the first sealing member 22 is fixed relatively to the inner tube main body 2 and moves relatively to the connection base 8. In contrast, the first sealing member 22 may be fixed to the connection base 8, and the second sealing member 32 may be fixed to the rotation housing 3. The connection between the connection base 8 and the rotation sleeve 3 is not limited to the screw connection, and may be realized by welding, gluing, clamping, or other connection methods.

In addition, although the embodiment of the present application discloses that the connection base 8 and the rotation sleeve 3 are connected to each other to realize the relative movement of the rotation sleeve 3 and the inner tube main body 2 and the mounting manner of the protection sleeve 4, the rotation sleeve 3 and the connection base 8 may be integrated by ultrasonic welding or the like to treat the connection base 8 as a part of the rotation sleeve 3. Likewise, the rotary sleeve 3 can be connected with the inner tube main body 2 in other ways of the same concept to realize the corresponding function.

The embodiment of the application also discloses an optical fiber connection assembly, referring to fig. 10, which comprises an optical fiber connector and an optical fiber adapter connected with the optical fiber connector. The optical fiber adapter may be configured as disclosed in the above embodiment, or may be configured such that both ends of the optical fiber adapter are the connection bases 12, so that the optical fiber adapter may axially butt-joint two optical fiber connectors.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. An optical fiber connector, characterized in that: comprising the steps of (a) a step of,

an inner tube body (2) for carrying a ferrule assembly (5);

a rotary jacket (3) sleeved outside the inner pipe main body (2), and an annular gap (6) for the connection seat (12) of the optical fiber adapter to pass through is formed between the rotary jacket and the inner pipe main body (2);

the protection sleeve (4) is sleeved outside the inner pipe main body (2) and clamped between the inner pipe main body (2) and the rotary outer sleeve (3), and the protection sleeve (4) can slide back and forth along the axial direction of the inner pipe main body (2) in a limited stroke so that the end part of the ferrule assembly (5) protrudes or is immersed into the protection sleeve (4);

an elastic member (7) for driving the protective sleeve (4) to maintain the protective sleeve (4) in a state of protruding the end of the ferrule assembly (5) in a free state;

wherein the end of the ferrule assembly (5) is configured as a guide structure for blind mating with a receptacle (13) of a fiber optic adapter.

2. The fiber optic connector of claim 1, wherein: the ferrule assembly (5) comprises a ferrule support (51) arranged at one end of the inner tube main body (2) and used for being inserted into a jack (13) of the optical fiber adapter, a guide ring (512) is arranged at the end part of the ferrule support (51), and the axial projection of the guide ring (512) falls into the axial projection of the ferrule support (51).

3. The fiber optic connector of claim 1, wherein: also included is a method of manufacturing a semiconductor device,

the connecting base (8) is arranged outside the inner pipe main body (2) in a sliding mode and is connected with the rotating outer sleeve (3), one end of the annular gap (6) is sealed by the connecting base (8) to enable the annular gap (6) to be opened unidirectionally, the elastic component (7) is arranged in the annular gap (6), and the elastic component (7) is respectively abutted with the protective sleeve (4) and the connecting base (8) to force the two to be far away from each other.

4. A fiber optic connector as claimed in claim 3, wherein: the connecting base (8) is provided with a penetrating space (83) which is communicated with the annular gap (6) and used for the protective sleeve (4) to partially penetrate, and an abutting part (82) attached to the inner pipe main body (2) is formed on the connecting base (8) and located on the inner side of the penetrating space (83).

5. The fiber optic connector of claim 4, wherein: the optical fiber connector is characterized in that the rotating outer sleeve (3) is internally provided with an inner limiting part (31), the protecting sleeve (4) is externally provided with an outer limiting part (41), and the inner limiting part (31) and the outer limiting part (41) are mutually abutted so as to limit the protecting sleeve (4) to be separated from the annular gap (6) along the end part of the optical fiber connector.

6. A fiber optic connector as claimed in claim 3, wherein: the optical fiber connector comprises an inner tube main body (2), and is characterized in that the rotating outer sleeve (3) can axially limit sliding with the inner tube main body (2), the optical fiber connector further comprises a fastening elastic piece (9), the fastening elastic piece (9) is arranged in an annular gap (6), the inner tube main body (2) is provided with a protruding portion (21) protruding outwards, and two ends of the fastening elastic piece (9) are respectively abutted against the protruding portion (21) and a connecting base (8) to force the two to be away from each other always.

7. The fiber optic connector of claims 3 or 4 or 6, wherein: the inner pipe body (2) and the connecting base (8) are clamped with a first sealing component (22), and the first sealing component (22) is always positioned between the inner pipe body (2) and the connecting base (8) in the process that the connecting base (8) axially slides along the inner pipe body (2).

8. A fiber optic connector as claimed in claim 3, wherein: the connecting base (8) is in threaded connection with the rotating outer sleeve (3), a second sealing component (32) is clamped between the connecting base (8) and the rotating outer sleeve (3), and one end face of the rotating outer sleeve (3) is abutted to the connecting base (8).

9. An optical fiber connection assembly, characterized in that: comprising an axially mutually abutting optical fiber adapter and an optical fiber connector according to any one of claims 1-8.

10. The fiber optic connection assembly of claim 9, wherein: the optical fiber adapter is provided with a ring groove (16) into which the protective sleeve (4) is inserted.