A fiber optic adapter

Abstract

The application discloses an optical fiber adapter used for interfacing with an optical fiber connecting device, the optical fiber adapter comprises an inner shell and an outer shell, the outer shell is sleeved outside the inner shell, and the inner shell can slide relative to the outer shell by a preset distance in the circumferential direction, wherein the inner shell is provided with a connecting position, the outer shell is provided with a clamping part, one end of the clamping part is a free end, and the free end can elastically float in the connecting position. When the optical fiber connecting device is inserted to a target position, the free end is separated from the connecting position, when the optical fiber connecting device reaches the target position, the free end is reset to the connecting position, so that the free end is in abutment with a clamping platform of the optical fiber connecting device, the inserted optical fiber connecting device is locked, and precise interfacing between the optical fiber adapter and the optical fiber connecting device is completed. By adopting the above scheme, the clamping part and the clamping position are locked in a clamping mode, the operation steps during optical fiber connection are simplified on the basis of ensuring optical fiber connection precision, and the operation convenience is further improved.

Description

Technical Field

[0001] This invention relates to the field of fiber optic connection equipment, and more specifically to a fiber optic adapter. Background Technology

[0002] In the field of fiber optic communication, achieving a reliable and high-precision secure connection between fiber optic adapters and fiber optic connection devices such as fiber optic boxes and connectors is crucial, as it directly affects the quality and stability of optical signal transmission. To meet the required connection precision, existing technologies commonly employ threaded or snap-fit ​​rotary connection structures for locking. Specifically, the operator must first precisely align the fiber optic adapter with the target fiber optic connection device, and then use additional threaded connectors (such as nuts, coupling rings, etc.) to perform multiple turns with both hands to achieve the final secure connection.

[0003] However, threaded or snap-fit ​​rotary connections typically require multiple rotations to achieve a reliable tightening force, significantly increasing the time required for a single connection. Furthermore, this mandatory two-handed operation mode severely limits operational flexibility and efficiency when wiring in confined spaces, working at heights, or needing to rapidly deploy or maintain a large number of connections. In addition, separate threaded connectors increase the complexity of the supply chain, inventory management, and field operations, posing risks of loss, damage, or improper installation, directly impacting connection reliability and maintenance speed.

[0004] Therefore, a fiber optic adapter is provided to simplify the operation steps and improve the efficiency of fiber optic connection while ensuring the accuracy and stability of fiber optic connection. This allows for quick connection with one hand, and improving the ease of operation has become an urgent technical problem to be solved. Summary of the Invention

[0005] Based on the above situation, the main objective of this invention is to provide an optical fiber adapter that simplifies operation steps, improves optical fiber connection efficiency, enables quick connection with one hand, and enhances operational convenience while ensuring the accuracy and stability of optical fiber connections.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] In a first aspect, embodiments of the present invention disclose an optical fiber adapter for plugging into an optical fiber connection device. The optical fiber adapter includes an inner shell and an outer shell, with the outer shell covering the outside of the inner shell, wherein:

[0008] The inner shell is provided with a connection position, and the connection position is provided with a connection bevel;

[0009] The outer casing is provided with a snap-fit ​​part, one end of which is a free end. The free end includes an end face and a mating face. The connecting bevel engages with the mating face so that at least a portion of the free end can elastically float within the connection position. The end face is used to abut against the snap-fit ​​platform of the fiber optic connection device to lock the inserted fiber optic connection device.

[0010] Optionally, it also includes a latch, wherein:

[0011] The outer side of the shell connected to the fiber optic connection device is provided with a circumferential groove, and the inner shell is provided with an opening at the end where the fiber optic connection device is inserted.

[0012] The latch is slidably positioned within the slide groove, with the width of the opening not less than the width of the latch's locking block, and the length of the slide groove greater than the width of the opening.

[0013] Optionally, a through hole is provided circumferentially on the outer side of the end of the housing that connects to the fiber optic connection device.

[0014] Optionally, the inner shell is provided with a sealing ring, which is located between the inner shell and the outer shell.

[0015] Optionally, the outer surface of the free end is an inclined slope, which slopes from high to low along the insertion direction of the optical fiber connection device.

[0016] Optionally, the inner shell is also provided with a connection platform, and the connection segment is provided with a first connection part that engages with the connection platform in a first direction, the first direction being the opposite of the insertion direction of the optical fiber connection device.

[0017] Optionally, the fiber optic adapter also includes an internal adapter, connectors, and elastic elements, wherein:

[0018] One end of the inner adapter abuts against the inner shell, the elastic element covers the outside of the inner adapter, and the connector covers the inner adapter from the other end and is fastened to the outer shell.

[0019] Optionally, the outer casing is further provided with a second connecting part, and the connector is provided with a third connecting part. The second connecting part and the third connecting part cooperate to achieve a fast connection between the outer casing and the connector.

[0020] Optionally, a boss is provided on the periphery of the inner adapter, one end of the elastic member abuts against the connector, and the other end of the elastic member abuts against the boss on the periphery of the inner adapter.

[0021] Optionally, it also includes:

[0022] The dust plug has a platform on its periphery that mates with the snap-fit ​​part.

[0023] Beneficial effects:

[0024] The fiber optic adapter disclosed in this invention is used to interface with a fiber optic connection device. The adapter includes an inner shell and an outer shell. The outer shell covers the outside of the inner shell, and the inner shell can slide a predetermined distance circumferentially relative to the outer shell. The inner shell has a connection position, and the outer shell has a locking portion extending along the insertion direction of the fiber optic connection device. One end of the locking portion is a free end with a certain thickness and can elastically float within the connection position. When the fiber optic connection device is inserted into the target position of the fiber optic adapter, the free end at least partially pushes away from the connection position. When the fiber optic connection device reaches the target position, the free end returns to the connection position, so that the free end abuts against the locking platform of the fiber optic connection device, locking the inserted fiber optic connection device and completing the precise interface between the fiber optic adapter and the fiber optic connection device. The above solution involves designing the fiber optic adapter housing as a double-layered structure. A connection point on the inner shell provides a moving space for the outer shell's movable end. When the fiber optic connection device is inserted, the engagement of the fiber optic adapter's locking part with the fiber optic connection device's locking part securely connects them, locking them together. This simplifies the connection process while maintaining fiber optic connection accuracy, allowing operators to connect and disconnect the fiber optic adapter with a single hand, thereby improving fiber optic connection efficiency.

[0025] Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0026] The preferred embodiment of the fiber optic adapter of the present invention will now be described with reference to the accompanying drawings. In the drawings:

[0027] Figure 1 This is an overall schematic diagram of a fiber optic adapter disclosed in this embodiment;

[0028] Figure 2 This is a cross-sectional structural diagram of an optical fiber adapter disclosed in this embodiment;

[0029] Figure 3 This is a cross-sectional structural diagram of the housing of a fiber optic adapter disclosed in this embodiment;

[0030] Figure 4 This is a partial structural diagram of the snap-fit ​​part in a fiber optic adapter disclosed in this embodiment;

[0031] Figure 5 This is a schematic diagram of the inner shell structure of a fiber optic adapter disclosed in this embodiment;

[0032] Figure 6This is a cross-sectional view of an optical fiber adapter disclosed in this embodiment from another direction;

[0033] Figure 7 This is a cross-sectional view of a fiber optic adapter disclosed in this embodiment in another direction. Detailed Implementation

[0034] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0035] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0036] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0037] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0038] To simplify operation steps, improve fiber optic connection efficiency, and enhance ease of operation while ensuring fiber optic connection accuracy, this embodiment discloses a fiber optic adapter for interfacing with fiber optic connection devices. These devices can be fiber optic boxes, fiber optic connectors, or other types of fiber optic connection devices. In this embodiment, a fiber optic connector is used as an example for detailed explanation. In specific implementations, the fiber optic connector can be a single-core, dual-core, or multi-core connector; no limitation is made here.

[0039] Please refer to Figure 1 and Figure 2 , Figure 1 This is an overall schematic diagram of a fiber optic adapter disclosed in this embodiment. Figure 2 This is a cross-sectional structural diagram of a fiber optic adapter disclosed in this embodiment. Figure 1 As shown, the left side of the fiber optic adapter 10 is plugged into a fiber optic connector, and the right side can be plugged into a fiber optic box, or it can be connected to other types of fiber optic connection devices in other ways.

[0040] like Figure 1As shown, the fiber optic adapter 10 includes an inner shell 11 and an outer shell 12, wherein the outer shell 12 covers the outside of the inner shell 11, and the inner shell 11 can slide axially a predetermined distance relative to the outer shell 12. In this embodiment, the inner shell 11 can move axially relative to the outer shell 12, thereby locking and unlocking the fiber optic connector and the fiber optic adapter 10 by pushing the inner shell 11. In specific implementation, there is a predetermined movement space between the inner shell 11 and the outer shell 12 to provide a predetermined sliding distance for the relative movement between the inner shell 11 and the outer shell 12, thereby realizing the locking and unlocking of the fiber optic connector and the fiber optic adapter 10.

[0041] Please refer to Figure 3 , Figure 3 This is a cross-sectional structural diagram of the housing of a fiber optic adapter disclosed in this embodiment. Figure 2 and Figure 3 As shown, the inner shell 11 is provided with a connection position 111, and the outer shell 12 is provided with a snap-fit ​​part 121 extending along the insertion direction of the fiber optic connector. The snap-fit ​​part 121 is located inside the connection position 111. One end of the snap-fit ​​part 121 is a free end 1211. The free end 1211 extends radially inward for a preset length and can elastically float within the connection position 111.

[0042] In this embodiment, a connection position 111 is provided on the inner shell 11, and a snap-fit ​​portion 121 is provided on the outer shell 12. The connection position 111 cooperates with the snap-fit ​​portion 121, providing space for the snap-fit ​​portion 121 to float elastically. During the insertion of the fiber optic connector, the snap-fit ​​portion 121 is first bounced up by the fiber optic connector to ensure smooth insertion, and then returns to its original position to lock the position of the fiber optic connector, thereby achieving a secure connection between the fiber optic adapter 10 and the fiber optic connector. In specific implementations, the snap-fit ​​portion 121 can be integrally formed with the outer shell 12, or it can be a separate component connected to the outer shell 12.

[0043] like Figure 3 As shown, the housing 12 includes a first end 122 and a second end 123. The fiber optic connector is inserted into the fiber optic adapter 10 from the first end 122 of the housing 12, and the snap-fit ​​portion 121 extends from the first end 122 to the second end 123 of the housing 12. Specifically, a through slot 124 is provided on the housing 12, and the snap-fit ​​portion 121 is disposed within this through slot 124. In specific implementations, the snap-fit ​​portion 121 can be integrally formed with the housing 12, or it can be a separate component fixedly connected to the snap-fit ​​portion 121. Preferably, the snap-fit ​​portion 121 is integrally formed with the housing 12.

[0044] Please see Figure 4 , Figure 4This is a partial structural diagram of the snap-fit ​​part in a fiber optic adapter disclosed in this embodiment. Figure 4 As shown, one end of the latching portion 121 is a free end 1211, which can elastically float within the connection position 111 under force. The free end 1211 includes an end face 12111, which extends radially inward by a predetermined length to provide a sufficiently large contact surface for contact with the fiber optic connector, ensuring a secure connection between the fiber optic adapter 10 and the fiber optic connector. Furthermore, it is understood that the free end 1211 of the latching portion 121 does not contact the sidewall of the through slot 124, allowing the latching portion 121 to move freely within the through slot 124 and the connection position 111 without hindrance.

[0045] In the specific implementation process, the extension direction of the snap-fit ​​part 121 is from the insertion direction of the fiber optic connector, so that after the fiber optic connector is snapped into contact with the fiber optic adapter 10, it will apply force to the snap-fit ​​part 121 from the opposite direction (that is, the opposite direction of the insertion direction of the fiber optic connector). Furthermore, since the fiber optic connector abuts against the end face 12111 of the free end 1211, it will further strengthen the abutment against the snap-fit ​​part 121, thereby ensuring the firmness of the connection between the fiber optic adapter 10 and the fiber optic connector.

[0046] When the fiber optic connector is inserted into the target position of the fiber optic adapter 10, the free end 1211 is at least partially pushed away from the connection position 111. When the fiber optic connector reaches the target position, the free end 1211 returns to the connection position 111 so that the end face 12111 of the free end 1211 abuts against the snap-fit ​​platform of the fiber optic connector. The end face 12111 is perpendicular to the axis of the fiber optic adapter, and the axis of the fiber optic adapter 10 is parallel to the axis of the inserted fiber optic connector, thereby locking the inserted fiber optic connector.

[0047] In this embodiment, the target position of the fiber optic adapter 10 is also the position when the fiber optic connector and the fiber optic adapter 10 are fully connected. During the insertion of the fiber optic connector, the free end 1211 of the latching part 121 contacts the fiber optic connector and gradually springs up within the connection position 111 as the fiber optic connector is inserted, thereby avoiding the insertion of the fiber optic connector and providing an insertion path for the fiber optic connector, ensuring smooth insertion of the fiber optic connector. During this process, the maximum push-off position of the latching part 121 can be such that the bottom surface 12112 of the free end 1211 of the latching part 121 is approximately flush with the inner wall of the inner shell 11, thereby providing sufficient connection space for the fiber optic connector, thus ensuring smooth insertion of the fiber optic connector and reaching the target position of the fiber optic adapter 10.

[0048] It should be noted that the degree of flushing depends on the fitting gap between the fiber optic connector and the inner shell 11. When the fiber optic connector can enter and reach the target position, the state of the free end 1211 is considered to be that the bottom surface 12112 of the free end 1211 is approximately flush with the inner wall of the inner shell 11.

[0049] When the fiber optic connector reaches the target position of the fiber optic adapter 10, the latching part 121 returns to its pop-up state within the connection position 111. The end face 12111 of the free end 1211 abuts against the latching platform of the fiber optic connector, forming a surface-to-surface contact, thereby locking the position of the fiber optic connector and achieving a secure connection between the fiber optic adapter 10 and the fiber optic connector. In specific implementation, since the free end 1211 undergoes slight deformation during its elastic floating within the connection position 111, the free end 1211 can be made of a plastic material. It is understood that the free end 1211 only needs to possess a certain deformation capacity to allow it to move within the connection position 111.

[0050] In an optional embodiment, please refer to Figure 5 , Figure 5 This is a schematic diagram of the inner shell structure of a fiber optic adapter disclosed in this embodiment. Figure 4 and Figure 5 As shown, one end of the connection position 111 is provided with a connecting ramp 1111, and the mating surface 12113 of the free end 1211 mates with the connecting ramp 1111 to allow the free end 1211 to elastically float within the connection position 111. In this embodiment, the slope height of the connecting ramp 1111 gradually decreases from the insertion direction of the fiber optic connector, and correspondingly, the mating surface 12113 also has the same slope as the connecting ramp 1111, thereby achieving a tight fit with the connecting ramp 1111. In specific implementation, the length of the free end 1211 extending radially inward can gradually increase from the insertion direction of the fiber optic connector, thereby forming the ramp of the mating surface 12113. In specific implementation, the connection position 111 can be a connection space, and the mating surface 12113 of the free end 1211 mates with the connecting ramp 1111 to allow the free end 1211 of the snap-fit ​​portion 121 to move within the connection position 111.

[0051] Since the inner shell 11 can slide a preset distance axially relative to the outer shell 12, when the inner shell 11 moves axially relative to the outer shell 12 along the insertion direction of the fiber optic connector, the connecting inclined surface 1111 of the connection position 111 abuts against the mating surface 12113 of the free end 1211. During the movement of the inner shell 11, the mating surface 12113 of the free end 1211 gradually bounces up in the connection position 111 under the push of the connecting inclined surface 1111, so that the end face 12111 of the free end 1211 no longer abuts against the snap-fit ​​platform of the fiber optic connector, thereby releasing the locking state of the fiber optic connector and allowing the fiber optic connector to be removed from the fiber optic adapter 10.

[0052] By cooperating with the snap-fit ​​part 121 of the fiber optic adapter 10 and the snap-fit ​​platform of the fiber optic connector, a tight connection between the fiber optic adapter 10 and the fiber optic connector can be achieved, and the two are locked in a snap-fit ​​manner. This simplifies the operation steps of fiber optic connection while ensuring the accuracy of fiber optic connection and improves the efficiency of fiber optic connection.

[0053] In an optional embodiment, the free end 1211 further includes an outer surface 12114, wherein the outer surface 12114 is a side of the free end 1211 facing radially outward along the housing 12. The outer surface 12114 is an inclined surface, and the inclination direction of the outer surface 12114 is from high to low along the insertion direction of the optical fiber connection device. In this embodiment, preferably, the height of the lowest point of the outer surface 12114 is less than the height of the outer wall of the housing 12, that is, the end face of the free end 1211 is a recessed structure relative to the outer wall of the housing 12. During the connection process between the fiber optic connector and the fiber optic adapter 10, the free end 1211 moves within the connection position 111, meaning the free end 1211 moves outward from the inner shell 11. Setting the free end 1211 as a concave structure allows for reserved space for its movement. This enables the fiber optic adapter 10 to not only connect with the fiber optic box independently, but also to connect with the fiber optic connector by covering the outer shell of the fiber optic adapter 10, thereby improving the versatility of the fiber optic adapter 10.

[0054] In an optional embodiment, please refer to Figure 6 , Figure 6 This is a cross-sectional view of a fiber optic adapter disclosed in this embodiment from another direction. Figure 6 As shown, the fiber optic adapter 10 also includes a latch 13, a groove 125 is provided circumferentially on the outer side of the end of the outer shell 12 that is connected to the fiber optic connector, and an opening 112 is provided on the end of the inner shell 11 for the fiber optic connector to be inserted.

[0055] The latch 13 is slidably disposed in the slide groove 125. The width of the opening 112 is not less than the width of the locking block 131 of the latch 13. The length of the slide groove 125 is greater than the width of the opening 112, so that when the latch 13 slides in the slide groove 125, it cooperates with the opening 112 to lock or unlock the axial movement of the inner shell 11 in the outer shell 12.

[0056] In this embodiment, the fiber optic adapter 10 is further provided with a latch 13, and a circumferential groove 125 is provided on the outer side of the first end 122 of the outer shell 12. The latch 13 is disposed in the groove 125 and can slide within the groove 125, so that locking and unlocking between the inner shell 11 and the outer shell 12 can be achieved by adjusting the position of the latch 13 within the groove 125. In the specific implementation process, the sliding of the latch 13 within the groove 125 is actually a circumferential movement along the outer shell 12. The width of the opening 112 on the inner shell 11 is greater than or equal to the width of the latch 13. When the position of the latch 13 is adjusted to the opening 112, the latch 13 can pass through the opening 112. At this time, the inner shell 11 can move axially after being subjected to external force, thereby releasing the locking state between the inner shell 11 and the outer shell 12. The length of the slide groove 125 is greater than the width of the opening 112. When the position of the latch 13 is adjusted so that the latch 13 cannot pass through the opening 112, the inner shell 11 cannot move axially even if subjected to external force. This strengthens the tightness of the connection between the inner shell 11 and the outer shell 12 and also prevents the inner shell 11 and the outer shell 12 from being unlocked due to accidental contact, thereby improving the reliability of the fiber optic connection.

[0057] Furthermore, when inserting the fiber optic connection device, the latch 13 can be adjusted to the locked state to prevent the fiber optic connection device from popping out after being inserted too deeply. Setting the latch 13 can further strengthen the connection between the inner shell 11 and the outer shell 12.

[0058] It should be noted that the length of the groove 125 and the width of the opening 112 refer to the circumferential length. That is, the length of the groove 125 refers to the length of the groove 125 in the circumferential direction of the outer shell 12, and the width of the opening 112 refers to the length of the opening 112 in the circumferential direction of the inner shell 11.

[0059] In practical implementation, the latch 13 includes a locking block 131 extending into the slide groove 125. The width of the opening 112 is not less than the width of the latch 13. In fact, the width of the opening 112 can be not less than the width of the locking block 131, so that the locking block 131 can pass through the opening 112 to achieve locking and unlocking between the inner shell 11 and the outer shell 12. In order for the latch 13 to cooperate with the slide groove 125 and the opening 112 to achieve locking and unlocking between the inner shell 11 and the outer shell 12, in addition to the length of the slide groove 125 being greater than the width of the opening 112, when the latch 13 slides to the locked position, the locking block 131 of the latch 13 is at least partially blocked at the position of the opening 112.

[0060] In optional embodiments, such as Figure 2 As shown, a sealing ring 126 is fitted on the outer side of the inner shell 11, and the sealing ring 126 is located between the inner shell 11 and the outer shell 12. In this embodiment, the sealing ring on the outer side of the inner shell 11 can improve the sealing between the inner shell 11 and the outer shell 12, thereby improving the overall waterproof and dustproof effect of the fiber optic adapter 10. In some embodiments, the sealing ring 126 is disposed on the inner shell 11, and when the inner shell 11 and the outer shell 12 are tightly connected, the sealing ring 126 is located inside the groove 125 relative to the outer shell 12. Due to the presence of the groove 125 and the opening 112, when the fiber optic adapter 10 is used outdoors, the groove 125 will inevitably be exposed to the external environment, and will be affected by environmental factors such as rain and dust. Therefore, the sealing ring 126 on the inner side can prevent dust, rainwater, etc. from entering the interior of the fiber optic adapter 10, thereby improving the overall waterproof and dustproof effect of the fiber optic adapter 10.

[0061] In optional embodiments, such as Figure 2 As shown, the fiber optic adapter 10 also includes an inner adapter 14, a connector 15, and an elastic member 16. One end of the inner adapter 14 abuts against one end of the inner shell 11. The connector 15 covers the outside of the inner adapter 14 from the other end. The outer shell 12 covers the outside of the inner shell 11, and the outer shell 12 is snapped into both the inner shell 11 and the connector 15. In this embodiment, as... Figure 1 As shown, the inner shell 11 is inserted from one end of the fiber optic connector ( Figure 2 The middle (left end) part covers the inner adapter 14 and abuts against the inner adapter 14, while the connector 15 extends from the other end of the inner adapter 14. Figure 2 The outer shell 12 (right end) is fitted onto the inner adapter 14. In specific implementation, the outer shell 12 is fitted onto the outside of the inner shell 11 and snaps into the inner shell 11, limiting the inner shell 11 and the outer shell 12 in the axial and circumferential directions. At the same time, the outer shell 12 is snapped into the connector 15, realizing the axial and circumferential limitation between the outer shell 12 and the connector 15, thereby realizing the axial and circumferential limitation of the inner shell 11, the outer shell 12 and the connector 15.

[0062] In an optional embodiment, please refer to Figure 7 , Figure 7 This is a cross-sectional view of a fiber optic adapter disclosed in this embodiment in another direction. Figure 5 and Figure 7As shown, the inner shell 11 is also provided with a connecting platform 113, and the outer shell 12 is provided with a first connecting part 127 that engages with the connecting platform 113 in a first direction. In this embodiment, the first direction is the direction opposite to the insertion direction of the optical fiber connection device. When the first connecting part 127 engages with the connecting platform 113, the inner shell 11 cannot move relative to the outer shell 12 in the first direction, that is, the inner shell 11 cannot be dislodged relative to the outer shell 12, and the other end of the inner shell 11 abuts against the elastic component 13, thereby fixing the inner shell 11 inside the outer shell 12.

[0063] like Figure 2 As shown, the elastic element 16 covers the outside of the inner adapter 14, with one end of the elastic element 16 abutting against the connector 15 and the other end abutting against the protrusion 141 on the periphery of the inner adapter 14, so that the inner shell 11 and the inner adapter 14 can move axially within the outer shell 12 after being subjected to external force. In this embodiment, as... Figure 7 As shown, an inner adapter 14 has a protrusion 141 arranged circumferentially on the outer side. One end of the elastic member 16 abuts against one side of the protrusion 141, and the end face of the inner shell 11 away from the fiber optic connector abuts against the other side of the protrusion 141. It can be understood that the protrusion 141 can be arranged continuously circumferentially or discontinuously.

[0064] The elastic element 16 covers the outside of the inner adapter 14, with one end abutting against the connector 15 and the other end abutting against one side of the boss 141. The elastic element 16 can be, for example, a spring, or any other elastic element. When the inner shell 11 is pushed by an external force to move the inner adapter 14 axially within the outer shell 12, the elastic element 16 is compressed. When the inner shell 11 loses the external force, the elastic element 16 is released, pushing the inner shell 11 back to its original position.

[0065] In specific implementations, the inner adapter 14 can have different axial profiles. For example, the portion of the inner adapter 14 connected to the inner shell 11 can be circular, while the portion connecting the inner adapter 14 to the connector 15 can be square. Preferably, different axial profiles can be provided for the inner adapter 14, with the boss 141 as the boundary. It is understood that the inner profile of the connector 15 should match the outer profile of the inner adapter 14. For example, when the outer profile of the portion connecting the inner adapter 14 and the connector 15 is square, the inner profile of the connector 15 is also square, thereby ensuring the stability and tightness of the overall internal structure of the fiber optic adapter 10, and thus ensuring the accuracy of the fiber optic connection.

[0066] When the outer contour of the part connecting the inner adapter 14 and the connector 15, as well as the inner contour of the connector 15, are both square, when the inner shell 11, outer shell 12, and connector 15 are snap-fitted together, the connector 15 simultaneously limits the circumferential rotation of the inner adapter 14. The inner adapter 14 will only move circumferentially within the outer shell 12 under external force or the restoring force of the elastic element 16, thereby achieving locking or unlocking between the fiber optic connector and the fiber optic adapter 10. It is understood that if the outer contour of the part connecting the inner adapter 14 and the connector 15, as well as the inner contour of the connector 15, are both circular, a limiting structure can be added between the inner adapter 14 and the connector 15 to limit the circumferential movement of the inner adapter. The limiting structure can be, for example, a snap-fit ​​structure.

[0067] In an optional embodiment, the inner adapter 14 is provided with a limiting protrusion. The limiting protrusion is used to limit the axial movement of the inner adapter 14. During the axial movement of the inner adapter 14 within the housing 12, when the elastic member 16 is compressed, the inner adapter 14 moves axially along the insertion direction of the fiber optic connector. When the limiting protrusion abuts against the connector 15, the inner adapter 14 reaches its maximum movement position in the insertion direction. When the elastic member 16 resets, the inner adapter 14 moves axially in the direction opposite to the insertion direction of the fiber optic connector (i.e., the pull-out direction of the fiber optic connector). When the boss 141 on the inner adapter 14 abuts against the end face of the inner housing 11 near the inner adapter 14, the inner adapter 14 reaches its maximum movement position in the pull-out direction.

[0068] In optional embodiments, such as Figure 3 and Figure 7 As shown, the outer casing 12 is further provided with a second connecting portion 128, and the connector 15 is provided with a third connecting portion 151. The second connecting portion 128 and the third connecting portion 151 cooperate to achieve a fast connection between the outer casing 12 and the connector 15. In this embodiment, the number of second connecting portions 128 can be one or more. Preferably, the number of second connecting portions 128 is two, and the two second connecting portions 128 are symmetrically arranged on the side wall of the outer casing 12. In specific implementation, when the second connecting portion 128 is a groove, the third connecting portion 151 can be a protrusion; when the second connecting portion 128 is a protrusion, the third connecting portion 151 is a groove. Preferably, the second connecting portion 128 can be a through groove opened on the side wall of the outer casing 12, connecting the inner cavity of the outer casing 12 with the external environment, and the third connecting portion 151 can be a buckle protruding radially outward along the connector 15.

[0069] In optional embodiments, such as Figure 5As shown, a guide structure 114 is provided axially on the inner wall of the inner shell 11. The guide structure 114 is used to guide the connection direction of the fiber optic adapter 10 and the fiber optic connector. In this embodiment, when the fiber optic connector is inserted into the fiber optic adapter 10, the guide structure 114 guides the connection direction of the fiber optic connector to ensure that the fiber optic line can be correctly connected.

[0070] In optional embodiments, such as Figure 3 As shown, the outer shell 12, away from the inner adapter 14, is also provided with a through hole 129 along the circumferential direction. In this embodiment, the through hole 129 and the groove 125 connect the gap space between the inner shell 11 and the outer shell 12, thereby forming a drainage channel for fluid to pass through. The fluid can be rainwater, etc. When the fiber optic adapter 10 is affected by weather such as rain or temperature drop outdoors, the through hole 129 can drain the water accumulated between the inner shell 11 and the outer shell 12, so as to prevent the rainwater from freezing in the gap due to temperature drop, which would prevent the inner shell 11 from sliding normally. In addition, in some embodiments, since the inner shell 11 is provided with an opening 112 and the outer shell 12 is provided with a groove 125, rainwater can more easily enter the opening 112 and the groove 125. The through hole 129 is provided on the outer shell 12 along the circumferential direction so that water and other substances entering the opening 112 and the groove 125 can be drained in time, preventing rainwater from freezing and affecting the movement of the latch 13.

[0071] In optional embodiments, such as Figure 1 As shown, a dust plug 17 can also be provided at one end of the fiber optic adapter 10 to prevent water and dust from entering the internal space of the fiber optic adapter 10. The dust plug 17 can have a structure similar to the fiber optic connection device connected to the fiber optic adapter 10. For example, a platform that mates with the snap-fit ​​part 121 is also provided on the periphery of the dust plug 17 to achieve a secure connection between the dust plug 17 and the fiber optic adapter 10. Additionally, a cable tie 18 can be connected to the outside of the housing 12. One end of the cable tie 18 is connected to the dust plug 17, and the other end of the cable tie 18 is connected to the housing 12 to prevent the dust plug 17 from being lost.

[0072] In an optional embodiment, an external thread is provided on the outer periphery of the end of the housing 12 away from the connector 15. In this embodiment, the fiber optic connection device can be either a fiber optic box or a fiber optic connector. When the fiber optic connection device is a fiber optic box, the fiber optic adapter 10 can be directly inserted into the fiber optic box, and the fiber optic adapter 10 can be securely connected to the fiber optic box by the connection nut of the fiber optic box engaging with the external thread. In other embodiments, the fiber optic adapter 10 can also be connected to a connecting shell via an external thread, thereby achieving a direct and secure connection between the fiber optic adapter 10 and the fiber optic connector.

[0073] In an optional embodiment, the fiber optic adapter 10 further includes a connecting shell, which at least partially covers the outside of the outer shell 12 and is securely connected to the outer shell 12. In this embodiment, a connecting shell is fitted onto the outside of the fiber optic adapter 10, allowing the fiber optic adapter 10 to directly and precisely mate with the fiber optic connector. The connecting shell and the outer shell 12 can be connected in various ways, such as threaded connection or snap-fit. Preferably, the connecting shell can be threaded onto the outer shell 12 via external threads, enabling the fiber optic adapter 10 to directly and precisely mate with the fiber optic connector. In this embodiment, a sealing ring can also be fitted onto the outside of the outer shell 12, abutting between the outer shell 12 and the connecting shell to achieve a seal between them. Adding a connecting shell and a sealing ring outside the outer shell 12 protects and seals the outer shell 12, improving the overall waterproof and dustproof performance of the fiber optic adapter 10, thus allowing the fiber optic adapter 10 to also directly connect with the fiber optic connector, ensuring fiber optic connection accuracy.

[0074] It is understandable that after the connection shell is set on the fiber optic adapter 10, heat shrink tubing, tail sleeve and other structures can be set on the fiber optic adapter 10 to improve the tensile strength and sealing effect of the fiber optic adapter 10, thereby ensuring the accuracy of the fiber optic connection.

[0075] The fiber optic adapter disclosed in this invention is used to interface with a fiber optic connection device. The adapter includes an inner shell and an outer shell. The outer shell covers the outside of the inner shell, and the inner shell can slide a predetermined distance circumferentially relative to the outer shell. The inner shell has a connection position, and the outer shell has a locking portion extending along the insertion direction of the fiber optic connection device. One end of the locking portion is a free end with a certain thickness and can elastically float within the connection position. When the fiber optic connection device is inserted into the target position of the fiber optic adapter, the free end at least partially pushes away from the connection position. When the fiber optic connection device reaches the target position, the free end returns to the connection position, so that the free end abuts against the locking platform of the fiber optic connection device, locking the inserted fiber optic connection device and completing the precise interface between the fiber optic adapter and the fiber optic connection device. The above solution involves designing the fiber optic adapter housing as a double-layered structure. A connection point on the inner shell provides a moving space for the outer shell's movable end. When the fiber optic connection device is inserted, the engagement of the fiber optic adapter's locking part with the fiber optic connection device's locking part securely connects them, locking them together. This simplifies the connection process while maintaining fiber optic connection accuracy, allowing operators to connect and disconnect the fiber optic adapter with a single hand, thereby improving fiber optic connection efficiency.

[0076] It will be understood by those skilled in the art that the above-described preferred solutions can be freely combined and superimposed without conflict. The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings; for example, two consecutively indicated blocks may actually be executed substantially in parallel, or sometimes in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions. The numbering of each step in this document is for ease of explanation and reference only and is not intended to limit the order of execution. The specific execution order is determined by the technology itself, and those skilled in the art can determine various permissible and reasonable orders based on the technology itself.

[0077] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0078] It should be understood that the above embodiments are merely exemplary and not restrictive. Various obvious or equivalent modifications or substitutions that can be made by those skilled in the art regarding the above details without departing from the basic principles of the present invention will be included within the scope of the claims of the present invention.

Claims

1. A fiber optic adapter for connecting to a fiber optic connection device, characterized in that, The fiber optic adapter (10) includes an inner shell (11) and an outer shell (12), the outer shell (12) covering the outside of the inner shell (11), wherein: The inner shell (11) is provided with a connection position (111), and the connection position (111) is provided with a connection slope (1111). The outer casing (12) is provided with a snap-fit ​​part (121), one end of which is a free end (1211). The free end (1211) includes an end face (12111) and a mating surface (12113). The connecting inclined surface (1111) mates with the mating surface (12113) so that at least a portion of the free end (1211) can elastically float within the connection position (111). The end face (12111) is used to abut against the snap-fit ​​platform of the optical fiber connection device to lock the inserted optical fiber connection device.

2. The fiber optic adapter according to claim 1, characterized in that, It also includes a latch (13), wherein: The outer side of the outer shell (12) connected to the optical fiber connection device is provided with a circumferential groove (125), and the inner shell (11) is provided with an opening (112) at the end for the optical fiber connection device to be inserted. The latch (13) is slidably disposed in the groove (125), the width of the opening (112) is not less than the width of the locking block (131) of the latch (13), and the length of the groove (125) is greater than the width of the opening (112).

3. The fiber optic adapter according to claim 2, characterized in that, The outer side of the housing (12) connected to the optical fiber connection device is also provided with a through hole (129) along the circumferential direction.

4. The fiber optic adapter according to claim 2, characterized in that, The inner shell (11) is covered with a sealing ring (126), which is located between the inner shell (11) and the outer shell (12).

5. The fiber optic adapter according to claim 1, characterized in that, The outer surface (12114) of the free end (1211) is an inclined surface, and the outer surface (12114) is inclined from high to low along the insertion direction of the optical fiber connection device.

6. The fiber optic adapter according to claim 1, characterized in that, The inner shell (11) is also provided with a connection platform (113), and the outer shell (12) is provided with a first connection part (127) that engages with the connection platform (113) in a first direction, the first direction being the opposite direction to the insertion direction of the optical fiber connection device.

7. The fiber optic adapter according to claim 1, characterized in that, The fiber optic adapter (10) further includes an internal adapter (14), a connector (15), and a flexible element (16), wherein: One end of the inner adapter (14) abuts against the inner shell (11), the elastic member (16) covers the outside of the inner adapter (14), and the connector (15) covers the inner adapter (14) from the other end and is fastened to the outer shell (12).

8. The fiber optic adapter according to claim 7, characterized in that, The outer shell (12) is further provided with a second connecting part (128), and the connector (15) is provided with a third connecting part (151). The second connecting part (128) and the third connecting part (151) cooperate to achieve a fast connection between the outer shell (12) and the connector (15).

9. The fiber optic adapter according to claim 8, characterized in that, The inner adapter (14) has a boss (141) on its periphery. One end of the elastic member (16) abuts against the connector (15), and the other end of the elastic member (16) abuts against the boss (141) on the periphery of the inner adapter (14).

10. The fiber optic adapter according to claim 1, characterized in that, Also includes: A dust plug (17) is provided on the periphery of which a platform is provided to cooperate with the snap-fit ​​part (121).

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