Optical fiber connector plugging structure for optical cable connection

Abstract

The invention relates to an optical fiber connector plugging structure for optical cable connection, which is applied to the field of optical cables. The optical fiber connector plugging structure comprises an optical cable plug assembly, an optical cable adapter assembly and an intelligent detector, the optical cable plug assembly comprises a plug main body installed with the optical cable body, a fixed sleeve rotatably connected to the outer ring of the plug main body, and a butt joint cylinder installed at the end portion of the plug main body. The optical cable adapter assembly comprises an adapter main body installed with the optical cable body, and a butt joint head II corresponding to the butt joint cylinder; by the adoption of the structure, when the optical cable plug assembly and the optical cable adapter assembly are in butt joint, the plug body and the adapter body can be locked continuously and stably, the end face is not prone to being polluted when optical fibers are in butt joint, and the optical fiber connector is convenient to use. The intelligent detector can automatically detect whether the installation position is in place or not, automatically detect the fault condition and automatically position the fault source, and improves the detection efficiency of maintenance personnel.

Description

Technical Field

[0001] The present invention relates to the field of optical cable technology, and in particular to an optical fiber connector plug-in structure for optical cable connection. Background Art

[0002] An optical cable connector, also known as a fiber optic connector, is a device that connects one optical fiber to another. It connects two optical fibers by plugging in an optical cable plug and an optical cable adapter. It can be repeatedly plugged in and out between optical fibers, and can be combined arbitrarily between the same types. Therefore, it is widely called an optical fiber active joint. Fiber optic connectors are now widely used in optical fiber communication systems, and they are of many types and have different structures. However, upon closer inspection, the basic structures of various types of fiber optic connectors are the same, that is, most fiber optic connectors generally use high-precision components to achieve optical fiber alignment and connection.

[0003] Chinese invention patent CNCN202010557541.X, its specification discloses a fiber optic connector-cable assembly and a cable connection system, specifically including an optical cable and a fiber optic connector, the optical cable having an optical fiber and a cable sheath, the free end of the optical fiber being provided with a ferrule, and the ferrule being provided with a ferrule spring. The fiber optic connector comprises: a connector body and a cover; a first fixed sleeve and a second fixed sleeve, between which the cable sheath is anchored; an insert, the insert being mounted at the distal end of the first fixed sleeve and having a channel for receiving the proximal section of the ferrule, the insert supporting the ferrule spring. In the direction toward the far end of the connector body, the cover presses the first fixed sleeve, the first fixed sleeve presses the insert, the insert presses the ferrule spring, and the ferrule spring presses the ferrule. It mainly utilizes the sleeve structure to lock and connect the two plug-in components, and utilizes the elastic component to tightly dock the two docked ferrules to achieve the purpose of optical fiber connection; however, in the actual implementation process, during multiple plug-in and replacement of docked optical fibers and multiple plug-in maintenance processes, the plug-in part of the optical fiber connector will gradually loosen, resulting in the connection part being unstable and prone to loosening, which will cause gaps between the optical fiber ferrules docked by the optical fiber connector, resulting in increased attenuation of optical fiber communication signals, decreased transmission speed, and reduced communication stability. Due to the large number of optical fiber connectors in the computer room, it is difficult for maintenance personnel to quickly locate the problematic optical fiber connector, which affects the maintenance progress of the equipment.

[0004] Application Contents In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the plug-in part of the optical fiber connector will gradually loosen, resulting in an unstable connection part, causing gaps to appear between the optical fiber cores connected between the optical fiber connectors, resulting in reduced communication stability, making it difficult for maintenance personnel to quickly locate the problematic optical fiber connector, thereby affecting the maintenance progress of the equipment.

[0005] To solve the above problems, the present invention provides an optical fiber connector plugging structure for optical cable connection, comprising an optical cable plug assembly, an optical cable adapter assembly and an intelligent detector; The optical cable plug assembly comprises a plug body installed with the optical cable body, a fixed sleeve rotatably connected to the outer ring of the plug body and a docking sleeve installed at the end of the plug body, a docking joint 1 is arranged in the middle of the docking sleeve, a docking rod, an optical fiber ferrule 1 and a photodiode are respectively installed on the docking joint 1, the optical fiber ferrule 1 is connected with the optical fiber in the optical cable body on the optical cable plug assembly, the photodiode is installed on the end face of the docking rod, and a locking ball is embedded in the outer ring of the docking rod; The optical cable adapter assembly includes an adapter body installed with the optical cable body, a docking joint 2 corresponding to the docking sleeve, a docking hole corresponding to the docking sleeve is provided on the docking joint 2, an optical fiber ferrule 2 is provided at a position corresponding to the optical fiber ferrule 1 on the docking joint 2, and a channel 1 and a channel 2 are respectively provided on the side walls of the docking hole of the docking joint 2, and the channel 2 corresponds to the locking ball, and a distance sensor is installed at the end of the docking hole away from the opening; The intelligent detector is provided with a fault detection module, an installation detection module and a reminder module. The fault detection module is electrically connected to the reminder module and the photodiode respectively, and the installation detection module is electrically connected to the reminder module and the distance sensor respectively.

[0006] In the above-mentioned fiber optic connector plug-in structure for optical cable connection, when the optical cable plug assembly and the optical cable adapter assembly are docked, the plug body and the adapter body are locked by the action of negative pressure, and the plug body and the adapter body can be continuously and stably locked by continuously adsorbing the negative pressure of the inner cavity of channel two. The high-pressure environment formed can also prevent the dust accumulated outside from entering the end faces of the two, so that the end faces are not easily contaminated when the optical fibers are docked. The intelligent detector can automatically detect whether the installation position is in place, and can automatically detect fault conditions and automatically locate the source of the fault, thereby improving the detection efficiency of maintenance personnel.

[0007] As a further improvement of the present application, the opening of channel one on the docking hole and the opening of channel two on the docking hole are arranged in sequence along the insertion direction of the docking tube, and at least two docking plug rods are provided.

[0008] As a further improvement of the present application, the inner cavities of multiple docking rods are connected in series through a connecting hole, a through hole 1 is formed through the side wall of each docking rod, a through hole 2 is formed on the side of the docking hole corresponding to the through hole 1, channel 1 is connected to the inner cavity of the adapter body, and through hole 2, the opening of channel 1 on the docking hole and the opening of channel 2 on the docking hole are arranged in sequence along the insertion direction of the docking tube.

[0009] As a further improvement of the present application, an air pressure sensor is installed in the inner cavity of the connecting hole, and the air pressure sensor is electrically connected to the installation detection module.

[0010] As a further improvement of the present application, multiple optical cable adapter assemblies are installed on the distribution box, the reminder module and the intelligent detector are both installed on the distribution box, the docking connector 2 located on the optical cable adapter assembly is installed with a docking contact, and the docking contacts are respectively electrically connected to the fault detection module and the installation detection module, and the docking connector 1 located on the optical cable plug assembly is provided with connecting holes at positions corresponding to the docking contacts, and the connecting holes are respectively electrically connected to the photodiode and the air pressure sensor, and the photodiode is electrically connected to the fault detection module and the air pressure sensor is electrically connected to the installation detection module by plugging the docking contacts and the connecting holes.

[0011] As another improvement of the present application, an air pressure regulating mechanism is provided on the optical cable plug assembly, and the air pressure regulating mechanism includes a shell and a negative pressure chamber and a pressure regulating chamber opened in the shell, the inner chambers of the negative pressure chamber and the pressure regulating chamber are both vertically slidably connected with pistons, the two pistons are connected in series through a connecting rod, channel one is connected to the upper end of the pressure regulating chamber, and channel two is connected to the top of the inner chamber of the negative pressure chamber.

[0012] As another improvement supplement of the present application, a ventilation pipe connected to the pressure regulating chamber is installed on the air pressure regulating mechanism, and a booster air pump is connected to the opening of the ventilation pipe through a pipeline. The booster air pump is electrically connected to the installation detection module, and an unlocking button is electrically connected to the installation detection module.

[0013] As another improvement of the present application, the inner wall of the end of the fixed sleeve is threadedly connected to the end of the adapter body through a thread, the outer ring of the adapter body is provided with a sealing ring, the outer wall of the docking sleeve is fixed with an anti-foolproof protrusion, and the inner wall of the adapter body is provided with an anti-foolproof groove corresponding to the anti-foolproof protrusion.

[0014] To summarize, when the optical cable plug assembly and the optical cable adapter assembly are docked, the plug body and the adapter body are locked by the action of negative pressure, and the plug body and the adapter body can be locked stably and continuously by continuously adsorbing the negative pressure of the inner cavity of channel two. The high-pressure environment formed can also prevent the dust accumulated outside from entering the end faces of the two, so that the end faces are not easily contaminated when the optical fibers are docked. The fault detection module and installation detection module set on the intelligent detector can intuitively understand whether the docking rod and the docking hole are installed in place, and can realize automatic detection of whether the installation position is in place, and can realize automatic detection of fault conditions and automatic positioning of fault sources, thereby improving the detection efficiency of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application; Figure 2This is a schematic diagram of the internal structure of the wiring box of the first and second embodiments of the present application; Figure 3 This is a schematic diagram of the structure of the plug body and the adapter body of the first and second embodiments of the present application; Figure 4 This is a schematic diagram of the plug main body structure of the first and second embodiments of the present application; Figure 5 This is a schematic diagram of the adapter main body structure of the first and second embodiments of the present application; Figure 6 This is a front cross-sectional view of the plug body and the adapter body of the first and second embodiments of the present application when they are connected; Figure 7 This is a block diagram of the control principle of the intelligent detector according to the first embodiment of the present application; Figure 8 A cross-sectional view of the plug body and the adapter body after docking according to the first and second embodiments of the present application; Fig. 9 For the first and second embodiments of this application Figure 8 Enlarged view of point A in the middle; Fig.10 For the first and second embodiments of this application Figure 8 Enlarged view of point B in the middle; Fig.11 This is a block diagram of the control principle of the intelligent detector according to the second embodiment of the present application.

[0016] Description of the numbers in the figure: 1. Optical cable plug assembly; 2. Optical cable adapter assembly; 3. Wiring box; 4. Reminder module; 5. Intelligent detector; 6. Air pressure regulating mechanism; 7. Plug body; 8. Fixing sleeve; 9. Docking sleeve; 10. Docking rod; 11. Adapter body; 12. Docking connector 2; 13. Docking hole; 14. Docking contact; 15. Optical fiber ferrule 2; 16. Docking connector 1; 17. Connecting hole; 18. Locking ball; 19. Optical fiber ferrule 1; 20. Connecting hole; 21. Anti-fool groove; 22. Anti-fool bump; 23. Photodiode; 24. Air pressure sensor; 25. Sealing ring; 26. Channel 1; 27. Channel 2; 28. Through hole 1; 29. ​​Through hole 2; 30. Connecting rod; 31. Distance sensor; 32. Ventilation pipe; 33. Negative pressure chamber; 34. Pressure regulating chamber. DETAILED DESCRIPTION

[0017] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0018] The first implementation method: Figure 1-Figure 6 and Figure 8-Figure 9The present invention shows a fiber optic connector plug structure for optical cable connection, comprising an optical cable plug assembly 1, an optical cable adapter assembly 2 and an intelligent detector 5; the optical cable plug assembly 1 comprises a plug body 7 installed with an optical cable body, a fixed sleeve 8 rotatably connected to the outer ring of the plug body 7 and a docking sleeve 9 installed at the end of the plug body 7, a docking joint 16 is arranged in the middle of the docking sleeve 9, and a docking rod 10, an optical fiber ferrule 19 and a photodiode 23 are respectively installed on the docking joint 16, the optical fiber ferrule 19 is connected to the optical fiber in the optical cable body on the optical cable plug assembly 1, and the photodiode 23 is connected to the optical fiber in the optical cable body on the optical cable plug assembly 1. The pole tube 23 is installed on the end face of the docking plug rod 10, and a locking ball 18 is embedded in the outer ring of the docking plug rod 10; the optical cable adapter assembly 2 includes an adapter body 11 installed with the optical cable body, a docking joint 12 corresponding to the docking sleeve 9, a docking hole 13 corresponding to the docking sleeve 9 is opened on the docking joint 12, and a fiber optic ferrule 15 is arranged at a position corresponding to the fiber optic ferrule 19 on the docking joint 12, and a channel 1 26 and a channel 2 27 are respectively opened on the side walls of the docking hole 13 on the docking joint 12, and the channel 2 27 corresponds to the locking ball 18, and the docking hole 13 is away from A distance sensor 31 is installed at one end of the opening, and docking is achieved by inserting the optical cable plug assembly 1 into the optical cable adapter assembly 2. At this time, the plug body 7 and the adapter body 11 are locked by screwing the fixing sleeve 8 onto the end of the adapter body 11. During this process, the docking rod 10 located on the plug body 7 will be inserted into the docking hole 13 on the docking connector 12, which can limit the circumferential rotation of the two, so that the optical fiber core 2 15 on the docking connector 12 and the connecting hole 20 on the docking connector 1 16 can be docked more stably, thereby achieving stable docking of the two optical fibers; when the After the plug body 7 is docked with the adapter body 11, the locking ball 18 located in the inner cavity of the docking rod 10 moves to the port of the channel 2 27. At this time, the inner cavity of the channel 27 is subjected to negative pressure adsorption, and the outer end of the locking ball 18 will enter the opening of the channel 27, and the docking rod 10 will be stuck in the docking hole 13, limiting the axial movement of the docking hole 13, further locking the plug body 7 and the adapter body 11, and by continuously adsorbing the negative pressure of the inner cavity of the channel 27, the plug body 7 and the adapter body 11 can be continuously and stably locked.

[0019] In addition, during the docking process, gas is introduced into the inner cavity of the channel 26 through the opened channel 26. At this time, the gas acts on the inner cavity of the adapter body 11 and the docking hole 13 to blow away the dust located there. In the process of the plug body 7 gradually approaching and docking with the adapter body 11, the dust at the end of the plug body 7 is blown away, and a high-pressure environment is formed at the docking interface between the plug body 7 and the adapter body 11, which can reduce the entry of dust into this environment. When the lock between the two is released, the high-pressure environment can also prevent the dust accumulated outside from entering the end faces of the two, so that the end faces are not easily contaminated when the optical fibers are docked, thereby improving the quality of optical fiber docking.

[0020] In this embodiment, the intelligent detector 5 is provided with a fault detection module, an installation detection module and a reminder module 4. The fault detection module is electrically connected to the reminder module 4 and the photodiode 23 respectively, and the installation detection module is electrically connected to the reminder module 4 and the distance sensor 31 respectively. When the plug body 7 is inserted into the adapter body 11, the distance sensor 31 located in the inner cavity of the docking hole 13 can detect the insertion position of the docking rod 10 in real time, and transmit the position signal to the installation detection module. When the docking rod 10 moves to the specified position in the docking hole 13, the installation detection module sends an installation position qualified signal to the reminder module 4, so that it can be intuitively understood whether the docking rod 10 and the docking hole 13 are installed in place, and at the same time, it can be judged whether the locking ball 18 enters the position corresponding to the channel 2 27; when the optical fiber connector is continuously used, the position information of the end of the docking rod 10 is collected in real time by the distance sensor 31 and sent to the installation detection module. When the communication fault is judged, When a fault occurs, it can be determined whether the installation positions of the plug body 7 and the adapter body 11 are loose due to external factors such as bumping and pulling, and the judgment result is sent to the fault detection module, and the fault condition of the optical fiber connection is analyzed by the fault detection module; the installed photodiode 23 detects in real time the tightness of the connection between the optical fiber ferrule 2 15 on the docking connector 12 and the optical fiber ferrule 19 on the docking connector 16. When the docking surfaces of the optical fiber ferrule 2 15 and the optical fiber ferrule 19 are misaligned or a gap appears, the optical signal of the optical fiber end face will leak at the gap and be detected by the photodiode 23. The photodiode 23 sends the detected data to the fault detection module. The fault detection module can determine whether there is a fault in the connection between the plug body 7 and the adapter body 11 here according to the data sent by the photodiode 23, and whether there is an increase in the attenuation of the optical fiber communication signal, thereby realizing automatic detection of fault conditions and automatic positioning of fault sources, thereby improving the detection efficiency of maintenance personnel.

[0021] In addition, the opening of channel one 26 located on the docking hole 13 and the opening of channel two 27 located on the docking hole 13 are arranged in sequence along the insertion direction of the docking tube 9. When the docking rod 10 is inserted into the docking hole 13, the gas in channel one 26 enters the docking hole 13, and the plug-in parts of the two are automatically blown and cleaned. When the docking rod 10 is continuously inserted into the docking hole 13 and the opening between channel two 27 and the docking hole 13 is blocked, it is convenient for channel two 27 to generate negative pressure to adsorb the locking ball 18 on the docking rod 10, and continuously lock the docking rod 10 in the docking hole 13. At least two docking rods 10 are provided. By inserting two or more docking rods 10 into the docking hole 13 on the docking connector two 12, the rotation of the plug body 7 and the adapter body 11 in the circumferential direction can be better restricted, so that the two are stably connected.

[0022] It is worth mentioning that the inner cavities of multiple docking rods 10 are connected in series through the connecting hole 17, and a through hole 28 is formed through the side wall of each docking rod 10, and a through hole 29 is formed on the side of the docking hole 13 corresponding to the through hole 28. The channel 1 26 is connected to the inner cavity of the adapter body 11, and the high-pressure gas in the inner cavity of the channel 1 26 can enter the docking hole 13 and also enter the through hole 29. The through hole 29, the opening of the channel 1 26 on the docking hole 13 and the opening of the channel 2 27 on the docking hole 13 are arranged in sequence along the insertion direction of the docking tube 9. After the docking rod 10 is inserted into the docking hole 13, the high-pressure gas in the channel 1 26 enters the connecting hole 17 of the docking rod 10. The pressure change in the inner cavity of the connecting hole 17 can be detected by the air pressure sensor 24. The airtightness of the inner cavity of the docking rod 10 and the docking hole 13 as well as the inner cavity of the end face of the adapter body 11 and the plug body 7 can be detected, and whether the optical fiber connector is damaged or aged can be detected. At the same time, The internal air pressure is large enough to maintain the stability of the high-pressure environment at the docking point between the adapter body 11 and the plug body 7. The inner cavity of the connecting hole 17 is installed with an air pressure sensor 24, and the air pressure sensor 24 is electrically connected to the installation detection module. After the plug body 7 and the adapter body 11 are docked, the air pressure sensor 24 sends the detected air pressure data to the installation detection module in real time. The installation detection module determines whether the sealing performance of the optical fiber connector after installation is qualified through the air pressure data sent by the air pressure sensor 24. When it is detected that it is unqualified, the installation detection module sends a reminder signal to the reminder module 4 to remind the operator that the corresponding optical fiber connector is unqualified in sealing; and when the communication stability is reduced, the installation detection module sends the air pressure data sent by the air pressure sensor 24 to the fault detection module. The fault detection module determines whether the optical fiber connector is damaged or aged through the air pressure data sent by the installation detection module, and performs targeted maintenance on the optical fiber connector to improve the maintenance efficiency.

[0023] In this embodiment, a plurality of optical cable adapter assemblies 2 are installed on the wiring box 3, the reminder module 4 and the intelligent detector 5 are both installed on the wiring box 3, the docking connector 12 located on the optical cable adapter assembly 2 is installed with a docking contact 14, and the docking contact 14 is electrically connected to the fault detection module and the installation detection module respectively, and the docking connector 16 located on the optical cable plug assembly 1 is provided with a connecting hole 20 at a position corresponding to the docking contact 14, and the connecting hole 20 is electrically connected to the photodiode 23 and the air pressure sensor 24 respectively, and the photodiode 23 is electrically connected to the fault detection module by plugging the docking contact 14 and the connecting hole 20. And the air pressure sensor 24 is electrically connected to the installation detection module. When the plug body 7 and the adapter body 11 are docked and installed, the docking contact 14 is inserted into the connecting hole 20 to complete the electrical connection. At the same time, the photodiode 23 and the air pressure sensor 24 on the plug body 7 are electrically connected to the corresponding fault detection module and the installation detection module. The electrical connection between the photodiode 23 and the air pressure sensor 24 is achieved during installation, which is convenient for installation operations, and it is convenient to locate the installation status of the optical fiber connector and the occurrence of a fault according to the photodiode 23 and the air pressure sensor 24, which is convenient for the staff to install and maintain.

[0024] Preferably, the inner wall of the end of the fixing sleeve 8 is threadedly connected to the end of the adapter body 11 through a thread, and the outer ring of the adapter body 11 is provided with a sealing ring 25, and the fixing sleeve 8 and the adapter body 11 are locked by threads, and when the fixing sleeve 8 is screwed into the adapter body 11, the inner wall of the end of the fixing sleeve 8 contacts the sealing ring 25, and the end of the fixing sleeve 8 is sealed to improve the sealing performance of the optical fiber connector, and an anti-foolproof protrusion 22 is fixed to the outer wall of the docking sleeve 9, and an anti-foolproof groove 21 is provided at the inner wall of the adapter body 11 corresponding to the anti-foolproof protrusion 22. When the docking sleeve 9 is docked with the adapter body 11, the anti-foolproof design can be realized by limiting the anti-foolproof groove 21 and inserting it into the corresponding anti-foolproof protrusion 22, which is convenient for blind installation and improves the convenience of installation.

[0025] The second implementation method: Figure 5-Figure 6 and Figure 8-Figure 11As shown, unlike the first embodiment, an air pressure regulating mechanism 6 is provided on the optical cable plug assembly 1, and the air pressure regulating mechanism 6 includes a shell and a negative pressure chamber 33 and a pressure regulating chamber 34 opened in the shell. The inner chambers of the negative pressure chamber 33 and the pressure regulating chamber 34 are vertically slidably connected with pistons, and the two pistons are connected in series through a connecting rod 30. A spring can be provided at the bottom of the piston of the negative pressure chamber 33, so that when the piston in the negative pressure chamber 33 is not subjected to the downward force of the top connecting rod 30, the spring pushes the corresponding piston to assist its reset. The channel 1 26 is connected to the upper end of the pressure regulating chamber 34, and the channel 2 27 is connected to the top of the inner chamber of the negative pressure chamber 33. When the inner cavity of the pressure regulating chamber 34 is pressurized, the high-pressure gas enters the channel 1 26, thereby pressurizing the inner cavity of the channel 1 26. At the same time, the pressure in the pressure regulating chamber 34 increases, pushing the corresponding piston inside to move downward. The downward piston synchronously pushes the piston in the negative pressure chamber 33 to move downward through the connecting rod 30. At this time, a negative pressure chamber is formed at the top of the negative pressure chamber 33, and thus a negative pressure chamber is formed together with the channel 2 27. Through the above-mentioned structural design, it is only necessary to control the increase of the air pressure in the corresponding pressure regulating chamber 34, so that the channel 1 26 can be controlled to increase the air pressure and the channel 2 27 can be controlled to form a negative pressure at the same time, so that the pressure in the channel 1 26 and the channel 2 27 can be flexibly controlled.

[0026] In addition, the air pressure regulating mechanism 6 is provided with a vent pipe 32 connected to the pressure regulating chamber 34. The opening of the vent pipe 32 is externally connected to a booster air pump through a pipeline. The booster air pump is electrically connected to the installation detection module. By setting a separate booster air pump to pressurize the inner cavity of the pressure regulating chamber 34, the corresponding channel 1 26 can be pressurized and the channel 2 27 can be controlled to generate negative pressure, so that the equipment investment is reduced, and there is no need to use a vacuum negative pressure pump to negatively adsorb the inner cavity of the channel 2 27, which saves the equipment installation cost and improves the convenience of subsequent maintenance. An unlocking button is connected. When the plug body 7 and the adapter body 11 need to be unlocked, the unlocking button is pressed to send an unlocking signal to the installation detection module. At this time, the installation detection module controls the pressure output of the boost air pump to decrease after receiving the unlocking signal. At this time, the pressure on the piston at the top of the connecting rod 30 is reduced, and the piston in the negative pressure chamber 33 moves up to increase the internal air pressure of the channel 2 27, thereby releasing the adsorption of the locking ball 18. At this time, it is convenient to pull the docking rod 10 out of the docking hole 13, thereby smoothly unlocking the plug body 7 and the adapter body 11.

[0027] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An optical fiber connector plugging structure for optical cable connection, comprising an optical cable plug assembly (1) and an optical cable adapter assembly (2), characterized in that: Also included is a smart detector (5); The optical cable plug assembly (1) comprises a plug body (7) mounted on an optical cable body, a fixed sleeve (8) rotatably connected to the outer ring of the plug body (7), and a docking sleeve (9) mounted on the end of the plug body (7); a docking joint (16) is provided in the middle of the docking sleeve (9); a docking rod (10), an optical fiber ferrule (19) and a photodiode (23) are respectively mounted on the docking joint (16); the optical fiber ferrule (19) is connected to the optical fiber in the optical cable body on the optical cable plug assembly (1); the photodiode (23) is mounted on the end face of the docking rod (10); and a locking ball (18) is embedded in the outer ring of the docking rod (10); The optical cable adapter assembly (2) comprises an adapter body (11) mounted on the optical cable body, a second docking joint (12) corresponding to the docking sleeve (9), a docking hole (13) corresponding to the docking sleeve (9) is provided on the second docking joint (12), a second optical fiber plug (15) is arranged at a position corresponding to the first optical fiber plug (19) on the second docking joint (12), a first channel (26) and a second channel (27) are respectively provided on the side walls of the docking hole (13) on the second docking joint (12), the second channel (27) corresponds to the locking ball (18), and a distance sensor (31) is installed at the end of the docking hole (13) away from the opening; The intelligent detector (5) is provided with a fault detection module, an installation detection module and a reminder module (4); the fault detection module is electrically connected to the reminder module (4) and the photodiode (23) respectively; and the installation detection module is electrically connected to the reminder module (4) and the distance sensor (31) respectively.

2. The optical fiber connector plug-in structure for optical cable connection according to claim 1, characterized in that: The opening of the first channel (26) located on the docking hole (13) and the opening of the second channel (27) located on the docking hole (13) are arranged in sequence along the insertion direction of the docking tube (9), and at least two docking plug rods (10) are provided.

3. The optical fiber connector plug-in structure for optical cable connection according to claim 2, characterized in that: The inner cavities of the plurality of docking rods (10) are connected in series via a connecting hole (17); a through hole 1 (28) is formed through the side wall of each docking rod (10); a through hole 2 (29) is formed on the side of the docking hole (13) at a position corresponding to the through hole 1 (28); the channel 1 (26) is connected to the inner cavity of the adapter body (11); and the through hole 2 (29), the opening of the channel 1 (26) on the docking hole (13), and the opening of the channel 2 (27) on the docking hole (13) are sequentially arranged along the insertion direction of the docking tube (9).

4. The optical fiber connector plug-in structure for optical cable connection according to claim 3, characterized in that: An air pressure sensor (24) is installed in the inner cavity of the communication hole (17), and the air pressure sensor (24) is electrically connected to the installation detection module.

5. The optical fiber connector plug-in structure for optical cable connection according to claim 4, characterized in that: A plurality of the optical cable adapter assemblies (2) are installed on a wiring box (3), the reminder module (4) and the intelligent detector (5) are both installed on the wiring box (3), a second docking connector (12) located on the optical cable adapter assembly (2) is installed with a docking contact (14), the docking contact (14) is respectively electrically connected to a fault detection module and an installation detection module, a first docking connector (16) located on the optical cable plug assembly (1) is provided with a connection hole (20) at a position corresponding to the docking contact (14), the connection hole (20) is respectively electrically connected to a photodiode (23) and an air pressure sensor (24), and the photodiode (23) is electrically connected to the fault detection module and the air pressure sensor (24) is electrically connected to the installation detection module by plugging the docking contact (14) and the connection hole (20).

6. The optical fiber connector plug-in structure for optical cable connection according to claim 1 or 4, characterized in that: The optical cable plug assembly (1) is provided with an air pressure regulating mechanism (6), the air pressure regulating mechanism (6) comprising a shell and a negative pressure chamber (33) and a pressure regulating chamber (34) provided in the shell, the inner chambers of the negative pressure chamber (33) and the pressure regulating chamber (34) are both vertically slidably connected with pistons, the two pistons are connected in series via a connecting rod (30), the channel 1 (26) is connected to the upper end of the pressure regulating chamber (34), and the channel 2 (27) is connected to the top of the inner chamber of the negative pressure chamber (33).

7. The optical fiber connector plug-in structure for optical cable connection according to claim 6, characterized in that: The air pressure regulating mechanism (6) is provided with a vent pipe (32) in communication with the pressure regulating chamber (34); the opening of the vent pipe (32) is externally connected to a booster air pump via a pipeline; the booster air pump is electrically connected to an installation detection module; and an unlocking button is electrically connected to the installation detection module.

8. The optical fiber connector plug-in structure for optical cable connection according to claim 1, characterized in that: The inner wall of the end of the fixing sleeve (8) is threadedly connected to the end of the adapter body (11) through a thread, the outer ring of the adapter body (11) is provided with a sealing ring (25), the outer wall of the docking sleeve (9) is fixed with an anti-foolproofing protrusion (22), and the inner wall of the adapter body (11) is provided with an anti-foolproofing groove (21) at a position corresponding to the anti-foolproofing protrusion (22).

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