CN116009152A - Underwater wet-type pluggable optical fiber connector - Google Patents
Underwater wet-type pluggable optical fiber connector Download PDFInfo
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- CN116009152A CN116009152A CN202310012976.XA CN202310012976A CN116009152A CN 116009152 A CN116009152 A CN 116009152A CN 202310012976 A CN202310012976 A CN 202310012976A CN 116009152 A CN116009152 A CN 116009152A
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Abstract
The invention provides an underwater wet-type pluggable optical fiber connector, which adopts a rotary sealing structure, and the residual seawater is isolated outside a front seal through a roller, so that a plug and a socket oil filling cavity are always kept sealed, and the problem that the optical fiber signal loss is caused by the fact that excessive seawater is brought in when the optical fiber connector is plugged in and plugged out in an underwater environment is solved; the device realizes pressure compensation while realizing plug rotary seal by adopting a rotary seal structure and a soft bag type pressure compensation structure, and solves the problem that the plugging efficiency of the optical fiber connector can be reduced due to huge pressure difference between the inside and the outside when the underwater optical fiber connector is in an underwater high-pressure environment; the device adopts a matched optical cable connection sealing structure, and the inner cavities of the plug and the socket end cover are filled with sealant to carry out integral filling sealing on the whole matched cable end; the device realizes the positioning in the plugging process through the positioning pin on the female plug and the positioning groove on the male plug, and realizes the locking after plugging through the annular groove on the female plug and the claw on the male plug.
Description
Technical Field
The invention belongs to the field of offshore oil engineering, and particularly relates to an underwater wet-type pluggable optical fiber connector.
Background
With the long-term stable development of economy, the demands of people for petroleum and natural gas resources are continuously increasing, inland areas are saturated, and people start to turn the eyes to deep sea. The underwater production system is used as a main tool for deep water oil gas exploitation, and has the advantages of low cost, short construction period, wide application range, strong natural disaster resistance and the like. With the increasing depth of oil and gas exploitation, optical fiber communication has been widely applied to communication connection between water equipment and underwater production systems and between underwater equipment. The underwater pluggable optical fiber connector is used as a connecting device, and has the basic functions of realizing connection between underwater equipment and transmission of optical fiber signals. The performance quality directly affects the reliability and safety of the underwater production system.
At present, mature technologies are monopolized by foreign companies, most of domestic applications are dry-wet plug optical fiber connectors, the dry-wet plug optical fiber connectors are required to be connected before equipment is launched, the underwater plug function is not provided, equipment maintenance and detection are required to be taken out to the water surface, and the operation is complex and the cost is high. In order to realize that the optical fiber connector can be plugged and pulled out underwater, a rotary sealing structure is needed to be designed, and seawater is scraped and rubbed and isolated before plugging, so that an oil filling cavity in the connector is kept sealed; meanwhile, the underwater pluggable optical fiber connector works in a deep water environment, and the huge pressure difference between the inside and the outside can cause sealing failure and connector damage, so that a bag type pressure compensation structure needs to be designed, and the pressure balance between the inside and the outside of the optical fiber connector is realized through the contraction and the expansion of a soft bag; in addition, the device realizes the sealing of the end optical cable by filling the sealing glue in the end shell, thereby reducing the loss of optical fiber signals; the device realizes the positioning in the plugging process through the positioning pin on the female plug and the positioning groove on the male plug, and realizes the locking after plugging through the annular groove on the female plug and the claw on the male plug.
The underwater pluggable optical fiber connector designed by the invention is provided with the rotary sealing structure, the bag-type pressure compensation structure, the optical cable matching sealing structure, the locating pin centering structure and the claw-type locking structure, and can realize underwater long-term work and underwater wet type pluggable.
Disclosure of Invention
The invention aims to provide an underwater wet-type pluggable optical fiber connector, which can scratch and isolate seawater before plugging through a rotary sealing structure, so that an oil filling cavity in the connector is kept sealed. Meanwhile, the underwater pluggable optical fiber connector works in a deep water environment, and the huge pressure difference between the inside and the outside can cause sealing failure and connector damage, so that a bag type pressure compensation structure needs to be designed, and the pressure balance between the inside and the outside of the optical fiber connector is realized through the contraction and the expansion of the soft bag. In addition, the device realizes the sealing of the end optical cable by filling the sealing glue in the end shell, thereby reducing the loss of optical fiber signals. The device realizes the positioning in the plugging process through the positioning pin on the female plug and the positioning groove on the male plug, and realizes the locking after plugging through the annular groove on the female plug and the claw on the male plug.
The purpose of the invention is realized in the following way: the optical fiber connector comprises an optical fiber contact pin 1, a female connector optical fiber frame 2, a female connector soft bag 3, a female connector sealing body 4, a roller 5, a socket sealing rod 6, a spring 7, a female connector shell 8, a female connector shell cover 9, a female connector end cover 10, an optical cable 11, a guide pin 12, an optical fiber socket 13, a male connector optical fiber frame 14, a male connector soft bag 15, a male connector sealing piece 16, a plug sealing rod 17, a male connector shell 18, a male connector end cover 19, a positioning pin 20 and a clamping jaw 21. The optical cable 22, the optical fiber contact pin 1 and the optical fiber socket 13 can complete the transmission of optical fiber signals; the female connector optical fiber rack 2 is internally provided with a plurality of stepped holes, and the plurality of optical fiber pins 1 are fixedly connected together through the plurality of stepped holes in the female connector optical fiber rack 2; the outer side of the female joint sealing body 4 is provided with a groove, and the roller 5 is arranged in the female joint sealing body 4 through the groove and can rotate; the inner side of the female connector sealing body 4 is provided with a groove, and the female connector optical fiber frame 2, the female connector soft bag 3, the socket sealing rod 6 and the plug sealing rod 17 are fixed in the female connector sealing body 4 through the inner side groove; the female connector shell cover 9 and the female connector end cover 10 are connected with the female connector shell 8 through threads; the male connector optical fiber rack 14 is internally provided with a plurality of stepped holes, and the plurality of optical fiber sockets 13 are fixedly connected together through the plurality of stepped holes in the male connector optical fiber rack 14; the outer side of the male joint sealing body 16 is provided with a groove, and the roller 5 is arranged in the male joint sealing body 16 through the groove and can rotate; the inner side of the male connector sealing body 16 is provided with a groove, and the male connector optical fiber frame 2 and the male connector soft bag 15 are fixed in the female connector sealing body 4 through the groove at the inner side; the male connector housing 18 is threadably connected to the male connector end cap 19.
The optical fiber contact pin 1, the female connector optical fiber frame 2, the female connector soft bag 3, the female connector sealing body 4, the roller 5, the socket sealing rod 6, the spring 7, the optical cable 11, the guide pin 12, the plug sealing rod 17, the female connector shell 8 and the female connector shell cover 9 are connected through threads, and the female connector shell 8 and the female connector end cover 10 are connected through threads to form a female connector structure.
The optical cable 11, the optical fiber socket 13, the male connector optical fiber frame 14, the male connector sealing body 16, the male connector shell 18 and the male connector end cover 19 are connected through threads to form a male connector structure.
The roller 5, the female joint sealing body 4, the male joint sealing body 16, the socket sealing rod 6 and the plug sealing rod 17 form a rotary sealing structure.
The female joint soft bag 3 and the male joint soft bag 15 are communicated with external seawater, and pressure compensation of the male joint and the female joint is realized through contraction and expansion of the soft bags.
The female connector end cover 10 and the male connector end cover 19 are provided with a wire inlet, and the inside is filled with sealant, so that the optical fiber connector is matched with an optical cable connection sealing structure.
Compared with the prior art, the invention has the beneficial effects that: (1) Through the rotary sealing structure, the problem that excessive seawater is brought into the optical fiber connector during plugging and unplugging to cause optical fiber signal loss is solved;
(2) The pressure compensation is realized while the plug rotary seal is realized, so that the plug efficiency of the underwater optical fiber connector in deep water is improved;
(3) The sealing structure is connected through the matched optical cable, so that the sealing effect on the optical cable is enhanced;
(4) Positioning in the plugging process is realized through a positioning pin on the female plug and a positioning groove on the male plug.
(5) The locking after the insertion is realized through the annular groove on the female plug and the claw on the male plug.
Drawings
FIG. 1 is a schematic view of a male and female connector of an underwater optical fiber connector of the present invention partially in connection;
FIG. 2 is a schematic view of the main body of the male plug of the underwater optical fiber connector of the present invention;
FIG. 3 is a schematic view of the main body of the female plug of the underwater optical fiber connector of the present invention;
FIG. 4 is a partial schematic view of the rolling seal of the present invention in an engaged condition;
FIG. 5 is a partial schematic view of the rolling seal of the present invention in a disengaged condition;
fig. 6 is a partial schematic view of a guide alignment structure according to the present invention.
The main reference numerals in the drawings illustrate: 1. the optical fiber connector comprises an optical fiber pin, a female connector optical fiber frame, a female connector soft bag, a female connector sealing body, a roller, a socket sealing rod, a spring, a female connector housing cover, a female connector end cover, an optical cable, a guide pin, a fiber optic receptacle, a male connector optical fiber frame, a male connector soft bag, a male connector sealing member, a plug sealing rod, a male connector housing, a male connector end cover, a positioning pin and a claw.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
The present invention relates to an underwater wet-type pluggable optical fiber connector, and more particularly, to an underwater wet-type pluggable optical fiber connector having a pluggable rotary sealing structure, a pressure compensation structure, a mating optical cable sealing structure, and a claw locking structure. The optical cable 11, the optical fiber contact pin 1 and the optical fiber socket 13 can complete optical fiber signal transmission; the female connector optical fiber rack 2 is internally provided with a plurality of stepped holes, and the plurality of optical fiber pins 1 are fixedly connected together through the plurality of stepped holes in the female connector optical fiber rack 2; the outer side of the female joint sealing body 4 is provided with a groove, and the roller 5 is arranged in the female joint sealing body 4 through the groove and can rotate; the inner side of the female connector sealing body 4 is provided with a groove, and the female connector optical fiber frame 2, the female connector soft bag 3, the socket sealing rod 6 and the plug sealing rod 17 are fixed in the female connector sealing body 4 through the inner side groove; the female connector shell cover 9 and the female connector end cover 10 are connected with the female connector shell 8 through threads; the male connector optical fiber rack 14 is internally provided with a plurality of stepped holes, and the plurality of optical fiber sockets 13 are fixedly connected together through the plurality of stepped holes in the male connector optical fiber rack 14; the outer side of the male joint sealing body 16 is provided with a groove, and the roller 5 is arranged in the male joint sealing body 16 through the groove and can rotate; the inner side of the male connector sealing body 16 is provided with a groove, and the male connector optical fiber frame 2 and the male connector soft bag 3 are fixed in the male connector sealing body 16 through the groove at the inner side; the male connector housing 18 is threadably connected to the male connector end cap 19.
The male connector adopts the following mounting modes:
the first step: the roller 5 is arranged in a groove on the outer side of the male joint sealing body 16;
and a second step of: fixing the fiber optic receptacle 13 in the stepped bore inside the male connector fiber optic shelf 14;
and a third step of: fixing the male connector fiber optic shelf 14 and the male connector pressure compensation in the male connector seal body 16;
fourth step: securing the male connector seal body 16 in the male connector housing 18;
fifth step: the male end cap 19 is secured to the male housing 18.
The female connector adopts the following mounting modes:
the first step: fitting the roller 5 and the positioning pin 20 into the groove on the outer side of the female joint sealing body 4;
and a second step of: fixing the optical fiber contact pin 1 in a stepped hole in the female connector optical fiber frame 2;
and a third step of: the female connector optical fiber frame 2 and the female connector soft bag 3 are fixed in the female connector sealing body 4;
fourth step: the socket sealing rod 6, the plug sealing rod 17 and the spring are fixed on the female sealing body;
fifth step: the female connector sealing body 4 is fixed in the female connector shell 8 and is provided with a guide pin 12;
sixth step: fixing the female connector housing cover 9 and the female connector end cover 10 on the female connector housing 8;
the working principle of the invention is as follows:
when the male connector and the female connector are plugged, the male connector sealing body 16 pushes against the female connector sealing body 4, the female connector sealing body 4 moves, the spring 7 is compressed, the socket sealing rod 6 and the plug sealing rod 17 respectively push the boss on the male connector roller 5 to drive the roller 5 to rotate while the spring 7 is compressed, and the wire inlet on the male connector roller 5 rotates to the horizontal direction. At this time, a channel is formed between the plug and the socket through the wire inlets of the two rollers 5, the optical fiber pins 1 and the optical fiber sockets 13 are inserted, and the optical fiber signals are transmitted through the optical cable 11, the optical fiber pins 1 and the optical fiber sockets 13.
Pressure compensation structure: the invention adopts a soft bag type pressure compensation structure, the male connector is provided with 3 small soft bags 15, the female connector is provided with 1 small soft bag 3, the inside of the male and female connector soft bags is filled with insulating oil, when the optical fiber connector works in a deep water environment, huge pressure difference exists between the inside and the outside of the optical fiber connector, and at the moment, external seawater presses the soft bags through the water inlet holes on the male and female connector shells, so that the pressure in the male and female connectors is increased and balanced with external water pressure.
The connecting and sealing structure of the adapting cable comprises the following steps: the whole optical cable end is filled and sealed integrally by filling sealant into the inner cavity of the socket tail cover.
Jaw locking mechanism: the invention adopts the claw locking mechanism, the claw is distributed on the male connector shell, the corresponding annular groove is reserved in the female connector shell, when the male connector and the female connector are inserted, the plug enters the annular cavity of the socket, the claw bulge can be inwards bent under the action of the socket shell, and when the claw moves to the position of the annular groove of the socket, the locking is completed; when the plug and the socket are separated, the socket outer shell body presses the claw to bend inwards so as to separate from the annular groove, and the plug and the socket can be smoothly separated to complete the separation process.
The underwater wet type plug optical fiber connector is used for connecting underwater equipment together and transmitting optical fiber signals, and is matched with an optical cable to form an assembly, so that the underwater wet type plug can be completed in a mode of separating and plugging a male connector and a female connector, and the connection and disconnection of the optical fiber signals are realized; after the male connector and the female connector are plugged, the optical fiber signals are transmitted through the optical cable 11, the optical fiber contact pin 1 and the optical fiber socket 13; the rotary sealing structure changes the position of the wire inlet through the rotation of the roller 5, so that the sealing problem in the process of inserting the male and female connectors is solved, and the problem that excessive seawater is brought into the fiber connector to cause fiber loss in the underwater environment when the fiber connector is inserted and pulled out is solved; the soft bag type pressure compensation structure adopted in the plugging process realizes pressure compensation while realizing plugging and unplugging rotary sealing, and solves the problem that the plugging efficiency of the optical fiber connector can be reduced due to huge pressure difference between the inside and the outside when the underwater optical fiber connector is in an underwater high-pressure environment; the connecting cable connecting and sealing structure adopts the inner cavity of the tail cover of the socket to fill sealant, and the whole connecting cable end is filled and sealed integrally; the claw locking mechanism adopts the claw on the male connector to be matched with the annular groove on the female connector to realize the locking after the male connector and the female connector are inserted.
In conclusion, the invention belongs to the field of offshore oil engineering, and particularly relates to an underwater wet-type pluggable optical fiber connector. The device can be used for underwater instrument equipment connection and transmission of optical fiber signals. The device is matched with an optical cable to form an assembly, and the underwater optical cable can be connected and disconnected in an underwater environment in a male plug and female plug plugging and separating mode. The device adopts a rotary sealing structure, and the residual seawater is isolated outside the front seal through the roller, so that the plug and the socket oil filling cavity are always kept sealed, and the problem that excessive seawater is brought into the fiber connector to cause fiber signal loss when the fiber connector is plugged in and pulled out in an underwater environment is solved; the device realizes pressure compensation while realizing plug rotary seal by adopting a rotary seal structure and a soft bag type pressure compensation structure, and solves the problem that the plugging efficiency of the optical fiber connector can be reduced due to huge pressure difference between the inside and the outside when the underwater optical fiber connector is in an underwater high-pressure environment; the device adopts a matched optical cable connection sealing structure, and the inner cavities of the plug and the socket end cover are filled with sealant to carry out integral filling sealing on the whole matched cable end; the device realizes the positioning in the plugging process through the positioning pin on the female plug and the positioning groove on the male plug, and realizes the locking after plugging through the annular groove on the female plug and the claw on the male plug.
Claims (5)
1. An underwater wet-type pluggable optical fiber connector is characterized in that: the novel optical fiber connector comprises an optical fiber contact pin (1), a female connector optical fiber frame (2), a female connector soft bag (3), a female connector sealing body (4), a roller (5), a socket sealing rod (6), a female connector shell (8), a female connector shell cover (9), a female connector end cover (10), an optical cable (11), an optical fiber socket (13), a male connector optical fiber frame (14), a male connector soft bag (15), a male connector sealing body (16), a plug sealing rod (17), a male connector shell (18) and a male connector end cover (19), wherein a stepped hole is formed in the female connector optical fiber frame (2), and the optical fiber contact pin (1) is fixedly connected together through the stepped hole in the female connector optical fiber frame (2); the outer side of the female joint sealing body (4) is provided with a groove, and the roller (5) is arranged in the female joint sealing body (4) through the groove and can rotate; the female connector sealing body (4) is internally provided with a groove, and the female connector optical fiber frame (2), the female connector soft bag (3), the socket sealing rod (6) and the plug sealing rod (17) are fixed in the female connector sealing body (4) through the inner groove; the female connector shell cover (9) and the female connector end cover (10) are connected with the female connector shell (8) through threads; the inside of the male connector optical fiber frame (14) is also provided with a stepped hole, and the plurality of optical fiber sockets (13) are fixedly connected together through the stepped hole in the inside of the male connector optical fiber frame (14); the outer side of the male joint sealing body (16) is provided with a groove, and the roller (5) is arranged in the male joint sealing body (16) through the groove and can rotate by itself; the inner side of the male connector sealing body (16) is provided with a groove, and the male connector optical fiber frame (2) and the male connector soft bag (15) are fixed in the female connector sealing body (4) through the inner side groove; the male connector shell (18) is connected with the male connector end cover (19) through threads; the claw is distributed on the male connector shell, and a corresponding ring groove is reserved in the female connector shell.
2. An underwater wet-pluggable optical fiber connector as defined in claim 1, wherein: the optical cable (11), the optical fiber contact pin (1) and the optical fiber socket (13) realize optical fiber signal transmission.
3. An underwater wet-pluggable optical fiber connector as defined in claim 1, wherein: the female joint sealing body (4), the roller (5), the male joint sealing body (16), the socket sealing rod (6) and the plug sealing rod (17) form a rotary sealing structure.
4. An underwater wet-pluggable optical fiber connector as defined in claim 1, wherein: the female joint soft bag (3) and the male joint soft bag (15) are communicated with external seawater, and pressure compensation of the male joint and the female joint is realized through contraction and expansion of the soft bags.
5. An underwater wet-pluggable optical fiber connector as defined in claim 1, wherein: the female connector end cover (10) and the male connector end cover (19) are provided with a wire inlet, and the inside is filled with sealant, so that the optical fiber connector is matched with an optical cable connection sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310012976.XA CN116009152A (en) | 2023-01-05 | 2023-01-05 | Underwater wet-type pluggable optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310012976.XA CN116009152A (en) | 2023-01-05 | 2023-01-05 | Underwater wet-type pluggable optical fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116009152A true CN116009152A (en) | 2023-04-25 |
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ID=86033431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310012976.XA Pending CN116009152A (en) | 2023-01-05 | 2023-01-05 | Underwater wet-type pluggable optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116009152A (en) |
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2023
- 2023-01-05 CN CN202310012976.XA patent/CN116009152A/en active Pending
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