Quick-connection underwater plugging optical connector

Abstract

The invention relates to the technical field of optical cable butt joint, and discloses a quick-connection underwater plugging optical connector, which comprises an optical cable, a female joint and a male joint, the female joint and the male joint are matched with each other and are both connected to the optical cable, and the female joint and the male joint of the optical connector are provided with protective structures. Water is sprayed out from the nozzle through the pressurization structure, high-speed water flow is emitted to the periphery of the connector in the radial direction, the high-speed water flow sprayed out from the nozzle expels nearby fishes and impurities, and damage to the interior of the optical cable and optical fibers of the connector caused by fish attack and impurity impact is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable docking, and more specifically, the present invention relates to a quick-connect underwater pluggable optical connector. Background Art

[0002] In ocean development, fiber optic signal transmission facilities must be used. In addition, fiber optic communication is also widely applied in rivers, lakes and seas. For example, underwater robots are used to inspect various reservoir dams and to survey the seabed, lake bottom and other terrains. When salvaging sunken ships or other facilities at the bottom of lakes or seas, underwater robots are sometimes used for the work. In military applications, such as fiber optic hydrophones, underwater torpedoes, mine tests, etc., underwater optical cable connectors are required.

[0003] In the prior art, underwater optical cable connectors mostly adopt a closed structure with a housing made of materials such as titanium alloy. For example, the Chinese invention patent "Submarine Optical Cable Connector" with the patent number 02219665.X discloses an optical cable connector with a closed structure. The connector adopts a clamping structure of an outer armor terminal flange seat of the optical cable and a wedge to tightly fix the outer armor steel wire of the submarine optical cable. A polyethylene protective layer of the same material is injection-molded between the terminal part of the polyethylene sheath of the submarine optical cable and the surface of the inner core of the connector. An outer housing is provided on the outer edge of the protective layer, which is connected and fixed to the outer armor terminal flange seats installed on the outer sides of both ends of the inner core. In addition, conical bend limiters resistant to seawater corrosion are encapsulated at both ends of the connector.

[0004] However, during long-term operation, the optical cable needs to be underwater for a long time. The magnetic field and vibration generated by the operation of the optical cable may cause fish schools to gather near the connector. After the fish schools gather, they may actively attack the connector during their movement, resulting in damage to the connector. In addition, various substances generated by the feeding and excretion of fish schools may also cause corrosion of the surface of the connector, resulting in damage to the connector. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a quick-connect underwater pluggable optical connector, which has the advantage of driving away fish.

[0006] To achieve the above object, the present invention provides the following technical solution: A quick-connect underwater pluggable optical connector, including an optical cable, a female connector and a male connector, the female connector and the male connector cooperate with each other, and both the female connector and the male connector are connected to the optical cable, wherein:

[0007] A protective structure is provided on the female optical connector and the male optical connector to prevent the joint part from being attacked by external forces. The protective structure includes a flange, an inner sleeve, and an outer sleeve. The inner sleeve is coaxially fixed to the male and female connectors. The outer sleeve is rotatably fitted on the inner sleeve. The flange is coaxially fixed to the end of the inner sleeve. The outer sleeve is provided with a plurality of liquid flow channels to accommodate the flow of water. The liquid flow channels are provided with a plurality of nozzles. The inner sleeve is provided with a pressurizing structure to input water into the liquid flow channels when the connector is attacked.

[0008] As a preferred technical solution of the present invention, the pressurizing structure includes a housing and a reciprocating screw. The reciprocating screw is rotatably installed on the inner sleeve. The housing is rotatably installed on the outer sleeve. A cylinder is fixed to the housing. The reciprocating screw is rotatably installed in the cylinder. A first gear is coaxially fixed to the outer sleeve. A driven end face gear is fixed to the reciprocating screw. The first gear is engaged with the driven end face gear. A first piston is slidably fitted in the cylinder. A first one-way valve is provided on the first piston. A water body accommodating groove 2051 is screwed on the reciprocating screw. A connecting pipe is fixed to the housing. A second one-way valve is provided in the connecting pipe. One end of the connecting pipe is fixed to the cylinder. A water body accommodating groove is provided on the outer sleeve. A plurality of liquid flow channels are all communicated with the water body accommodating groove. The other end of the connecting pipe extends into the water body accommodating groove and is slidably fitted with the water body accommodating groove.

[0009] As a preferred technical solution of the present invention, a driving structure is provided in the housing to drive the first gear to rotate. The driving structure includes a connecting plate and a spring. The connecting plate is fixed to the inner sleeve. A first one-way bearing is provided on the connecting plate. A rotating shaft is installed in the first one-way bearing. A turntable is rotatably installed on the rotating shaft. A first annular gear is coaxially fixed to the turntable. The first annular gear is matched with the first gear. One end of the spring is fixed to the rotating shaft, and the other end is fixed to the first annular gear.

[0010] As a preferred technical solution of the present invention, a power structure is provided on the flange to energize the spring. The power structure includes a second annular gear and a short shaft. The second annular gear is rotatably installed on the flange. A water wheel is coaxially fixed to the second annular gear. A second one-way bearing and a third one-way bearing are installed on the rotating shaft. A second gear is installed on the second one-way bearing. A third gear is installed on the third one-way bearing. The second gear is matched with the second annular gear. The short shaft is fixed to the inner sleeve. A transmission end face gear is rotatably installed on the short shaft. Both the second gear and the third gear are engaged with the transmission end face gear.

[0011] As a preferred technical solution of the present invention, a control structure is provided on the housing to control the rotation of the first ring gear. The control structure includes a plunger. A gas flow passage is provided on the housing. The plunger is slidably fitted in the gas flow passage. A compression spring is provided in the gas flow passage to apply an elastic force to the plunger. A limit block is fixedly connected to the plunger. A plurality of limit grooves are provided on the turntable. The limit block is slidably fitted in the limit grooves.

[0012] As a preferred technical solution of the present invention, a plurality of grooves are provided on the outer sleeve. A second piston is slidably fitted in the grooves. A protective plate is fixedly connected to the second piston. A plurality of buffer springs are fixedly connected in the grooves to apply an elastic force to the second piston.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In the present invention, a pressurizing structure is used to make the water body spray out from the nozzle, so as to radially emit high-speed water flow around the joint. The high-speed water flow sprayed out from the nozzle will expel nearby fish and impurities, so as to prevent the internal part of the optical cable and the optical fiber of the connector from being damaged due to fish attacks and impurity impacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 is a top view of the protective structure of the present invention;

[0018] Figure 4 of the present invention Figure 3 is a sectional view taken along the line A-A in;

[0019] Figure 5 of the present invention Figure 4 is an enlarged view at B in;

[0020] Figure 6 of the present invention Figure 4 is an enlarged view at C in;

[0021] Figure 7 of the present invention Figure 2 is an enlarged view at D in;

[0022] In the figure: 1. Optical cable; 101. Female connector; 102. Male connector; 2. Protection structure; 201. Flange; 202. Water turbine; 203. Housing; 2031. Gas flow channel; 204. Inner sleeve; 205. Outer sleeve; 2051. Water body accommodating groove; 2052. Gas accommodating groove; 3. Second annular gear; 4. Connecting plate; 401. First one-way bearing; 5. Short shaft; 501. Driving end face gear; 6. Rotating shaft; 601. Second one-way bearing; 602. Third one-way bearing; 7. Second gear; 8. Third gear; 9. Turntable; 901. Limit groove; 10. First annular gear; 11. Spring; 12. Plunger; 13. Compression spring; 14. Limit block; 15. Groove; 16. Buffer spring; 17. Second piston; 18. Protection plate; 19. First gear; 20. Driven end face gear; 21. Reciprocating screw; 22. First piston; 23. First one-way valve; 24. Connecting pipe; 25. Tesla valve; 26. Second one-way valve; 27. Liquid flow channel; 28. Nozzle; 29. Cylinder block. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1: As Figures 1 to 4 shown, the present invention provides a fast-connect underwater pluggable optical connector, including an optical cable 1, a female connector 101 and a male connector 102. The female connector 101 and the male connector 102 cooperate with each other, and both the female connector 101 and the male connector 102 are connected to the optical cable 1. Among them:

[0025] A protection structure 2 is provided on the female connector 101 of the optical connector and the male connector 102 of the optical connector to prevent the joint part from being attacked by external forces. The protection structure 2 includes a flange 201, an inner sleeve 204 and an outer sleeve 205. The inner sleeve 204 is coaxially fixed on the male connector 102 and the female connector 101. The outer sleeve 205 is rotatably fitted on the inner sleeve 204. The flange 201 is coaxially fixed at the end of the inner sleeve 204. A plurality of liquid flow channels 27 are provided on the outer sleeve 205 to accommodate the flow of water. A plurality of nozzles 28 are provided in the liquid flow channels 27. The inner sleeve 204 is provided with a pressurization structure to input water into the liquid flow channels 27 when the joint is attacked.

[0026] When connecting the optical cable, the male connector 102 is inserted into the female connector 101 in a mating manner. The flanges 201 on the two connectors will abut against each other, and the flanges 201 are fixed together by fasteners. At this time, the female connector 101 and the male connector 102 are enclosed inside the inner sleeve 204 and the flanges 201 to prevent the water in the outside world from contaminating the connectors.

[0027] During use, when being attacked by fish in the water, the pressurization structure will supply water to the liquid flow channel 27 to increase the water pressure in the liquid flow channel 27. The water in the liquid flow channel 27 will be ejected from the nozzle 28, thereby radially emitting high-speed water flow around the connector to drive away the nearby fish and prevent the fish from continuously attacking the connector.

[0028] In addition, when the water flow near the connector carries a large amount of large impurities and impacts the connector, the nozzle 28 will also radially emit high-pressure water flow to knock down the large impurities approaching the connector part.

[0029] Embodiment 2: As Figure 4 and Figure 6 shown, the pressurization structure includes a housing 203 and a reciprocating screw 21. The reciprocating screw 21 is rotatably installed on the inner sleeve 204, the housing 203 is rotatably installed on the outer sleeve 205, a cylinder block 29 is fixedly connected to the housing 203, the reciprocating screw 21 is rotatably installed on the cylinder block 29, a first gear 19 is coaxially fixedly connected to the outer sleeve 205, a driven end face gear 20 is fixedly connected to the reciprocating screw 21, the first gear 19 is engaged with the driven end face gear 20, a first piston 22 is slidably fitted in the cylinder block 29, a first one-way valve 23 is provided on the first piston 22, a connecting pipe 24 is fixedly connected to the housing 203, a second one-way valve 26 is provided in the connecting pipe 24, one end of the connecting pipe 24 is fixedly connected to the cylinder block 29, a water body accommodating groove 2051 is formed in the outer sleeve 205, and a plurality of liquid flow channels 27 are all communicated with the water body accommodating groove 2051. The other end of the connecting pipe 24 extends into the water body accommodating groove 2051 and is slidably fitted with the water body accommodating groove 2051.

[0030] When the first gear 19 rotates, the first gear 19 will drive the driven end face gear 20 to rotate. The rotation of the driven end face gear 20 will drive the reciprocating screw 21 to rotate. Since the first piston 22 is threadedly connected to the reciprocating screw 21 and the first piston 22 will not rotate with the reciprocating screw 21, during the rotation of the reciprocating screw 21, the first piston 22 will be driven to slide back and forth in the cylinder block 29. Since the first one-way valve 23 only allows the outside liquid to enter the cylinder block 29, and the second one-way valve 26 only allows the liquid in the cylinder block 29 to flow into the water body accommodating groove 2051, during the back-and-forth sliding of the first piston 22, the outside water body will be conveyed into the water body accommodating groove 2051, and the water in the water body accommodating groove 2051 will be shunted into a plurality of liquid flow channels 27.

[0031] Embodiment 3: As Figures 4 - 5 and Figure 7 shown, a driving structure is provided inside the housing 203 to drive the first gear 19 to rotate. The driving structure includes a connecting plate 4 and a spring 11. The connecting plate 4 is fixedly connected to the inner sleeve 204. A first one-way bearing 401 is provided on the connecting plate 4. A rotating shaft 6 is installed inside the first one-way bearing 401. A turntable 9 is rotatably installed on the rotating shaft 6. A first annular gear 10 is coaxially fixedly connected to the turntable 9. The first annular gear 10 is matched with the first gear 19. One end of the spring 11 is fixedly connected to the rotating shaft 6, and the other end is fixedly connected to the first annular gear 10.

[0032] The first one-way bearing 401 only allows the rotating shaft 6 to rotate in one direction, thereby ensuring that the rotating shaft 6 can continuously charge the spring 11. After the spring 11 is charged, it can drive the first annular gear 10 to rotate. The first annular gear 10 meshes with the first gear 19, so that the first gear 19 is driven to rotate during the rotation of the first annular gear 10.

[0033] As Figure 5 shown, a control structure is provided on the housing 203 to control the rotation of the first annular gear 10. The control structure includes a plunger 12. A gas flow channel 2031 is opened on the housing 203. The plunger 12 is slidably fitted in the gas flow channel 2031. A compression spring 13 is provided in the gas flow channel 2031 to apply an elastic force to the plunger 12. A limiting block 14 is fixedly connected to the plunger 12. A plurality of limiting grooves 901 are opened on the turntable 9. The limiting block 14 is slidably fitted in the limiting grooves 901.

[0034] Driving the plunger 12 to slide in the gas flow channel 2031 can drive the limiting block 14 to move synchronously. The limiting block 14 can enter and exit the limiting grooves 901 during the movement.

[0035] When the limiting block 14 enters the inside of the limiting groove 901, the limiting block 14 will limit the turntable 9 to prevent the turntable 9 from rotating. The turntable 9 is fixedly connected to the first annular gear 10. If the turntable 9 cannot rotate, the first annular gear 10 cannot rotate either. At this time, the elastic energy stored in the spring 11 will not be released.

[0036] When the limiting block 14 exits the limiting groove 901, the turntable 9 can rotate freely, and the first annular gear 10 fixedly connected to the turntable 9 can also rotate freely. At this time, the elastic potential energy of the spring 11 will be converted into the kinetic energy for driving the first annular gear 10 to rotate.

[0037] As Figure 4 and Figure 5As shown in the figure, a plurality of grooves 15 are formed on the outer sleeve 205. A second piston 17 is slidably fitted in the groove 15. A protective plate 18 is fixedly connected to the second piston 17. A plurality of buffer springs 16 are fixedly connected in the groove 15 to apply an elastic force to the second piston 17.

[0038] The gas flow channel 2031, the gas storage tank 2052 and the groove 15 are connected to each other. When the second piston 17 compresses the buffer spring 16, the air pressure in the groove 15 will increase, and the air pressures inside the connected gas flow channel 2031 and the gas storage tank 2052 will also increase accordingly. Under the action of the pressure, the plunger 12 is driven to slide in the gas flow channel 2031, thereby driving the limit block 14 to slide synchronously, so that the limit block 14 is removed from the limit groove 901.

[0039] When the second piston 17 is reset under the elastic force of the buffer spring 16, the plunger 12 will also be reset under the elastic force of the compression spring 13. The plunger 12 will drive the limit block 14 to reset, so that the limit block 14 re-enters the limit groove 901 to limit the turntable 9.

[0040] Embodiment 4: As Figure 5 and Figure 7 shown in the figure, a power structure is provided on the flange 201 to energize the spring 11. The power structure includes a second ring gear 3 and a short shaft 5. The second ring gear 3 is rotatably installed on the flange 201. A water wheel 202 is coaxially fixedly connected to the second ring gear 3. A second one-way bearing 601 and a third one-way bearing 602 are installed on the rotating shaft 6. A second gear 7 is installed on the second one-way bearing 601. A third gear 8 is installed on the third one-way bearing 602. The second gear 7 matches the second ring gear 3. The short shaft 5 is fixedly connected to the inner sleeve 204. A transmission end face gear 501 is rotatably installed on the short shaft 5. Both the second gear 7 and the third gear 8 cooperate with the transmission end face gear 501.

[0041] When the water body near the joint flows, it will drive the water wheel 202 to rotate. Due to the uncertainty of the flowing direction of the water body, the rotation direction of the water wheel 202 driven by the water body is uncertain, so that the water wheel 202 has two states of forward rotation and reverse rotation, where:

[0042] For the forward rotation of the water wheel 202: When the water wheel 202 rotates forward, it will drive the second ring gear 3 to rotate forward. The forward rotation of the second ring gear 3 drives the second gear 7 to rotate forward. When the second gear 7 rotates forward, due to the existence of the second one-way bearing 601, the second gear 7 is regarded as fixedly connected to the rotating shaft 6. Therefore, the forward rotation of the second gear 7 will drive the rotating shaft 6 to rotate forward.

[0043] For the reverse rotation of the water wheel 202: When the water wheel 202 rotates in reverse, it will drive the second annular gear 3 to rotate in reverse. The reverse rotation of the second annular gear 3 drives the second gear 7 to rotate in reverse. When the second gear 7 rotates in reverse, the second one-way bearing 601 is in a free rotation state. Therefore, the reverse rotation of the second gear 7 will not drive the rotating shaft 6 to rotate. The reverse rotation of the second gear 7 will only drive the transmission end face gear 501 to rotate. Since the second gear 7 and the third gear 8 are coaxially arranged (on the rotating shaft 6) and both are engaged with the transmission end face gear 501, when the second gear 7 rotates in reverse to drive the transmission end face gear 501 to rotate, the transmission end face gear 501 will drive the third gear 8 to rotate forward. When the third gear 8 rotates forward, due to the existence of the third one-way bearing 602, the third gear 8 and the rotating shaft 6 are regarded as fixedly connected. Therefore, the forward rotation of the third gear 8 drives the rotating shaft 6 to rotate forward.

[0044] Based on the above description, it can be seen that whether the water wheel 202 rotates forward or reversely, it will cause the rotating shaft 6 to rotate forward, that is, the rotating shaft 6 will only rotate in a single direction, and the single-direction rotation of the rotating shaft 6 also conforms to the rotation allowed by the first one-way bearing 401. Therefore, the rotating shaft 6 will only rotate in one direction to charge the spring 11.

[0045] The working principle and usage process of the present invention:

[0046] (1) After the optical cables at both ends are connected to the female connector 101 through the male connector 102, the flange 201 is fixed together by fasteners. At this time, the female connector 101 and the male connector 102 are enclosed inside the inner sleeve 204 and the flange 201 to prevent the outside water from contaminating the connectors.

[0047] (2) When the water near the connector flows, it will drive the water wheel 202 to rotate. Due to the uncertainty of the water flow direction, the direction of the water driving the water wheel 202 to rotate is uncertain, so that the water wheel 202 has two states of forward rotation and reverse rotation, where:

[0048] For the forward rotation of the water wheel 202: When the water wheel 202 rotates forward, it will drive the second annular gear 3 to rotate forward. The forward rotation of the second annular gear 3 drives the second gear 7 to rotate forward. When the second gear 7 rotates forward, due to the existence of the second one-way bearing 601, the second gear 7 is regarded as fixedly connected to the rotating shaft 6. Therefore, the forward rotation of the second gear 7 will drive the rotating shaft 6 to rotate forward.

[0049] For the reverse rotation of the water wheel 202: When the water wheel 202 rotates in reverse, it will drive the second annular gear 3 to rotate in reverse. The reverse rotation of the second annular gear 3 drives the second gear 7 to rotate in reverse. When the second gear 7 rotates in reverse, the second one-way bearing 601 is in a freely rotating state. Therefore, the reverse rotation of the second gear 7 will not drive the rotating shaft 6 to rotate. The reverse rotation of the second gear 7 will only drive the transmission end face gear 501 to rotate. Since the second gear 7 and the third gear 8 are coaxially arranged (on the rotating shaft 6) and both are engaged with the transmission end face gear 501, when the second gear 7 rotates in reverse to drive the transmission end face gear 501 to rotate, the transmission end face gear 501 will drive the third gear 8 to rotate forward. When the third gear 8 rotates forward, due to the existence of the third one-way bearing 602, the third gear 8 and the rotating shaft 6 are regarded as fixedly connected. Therefore, the forward rotation of the third gear 8 drives the rotating shaft 6 to rotate forward.

[0050] Based on the above description, it can be seen that whether the water wheel 202 rotates forward or in reverse, it will cause the rotating shaft 6 to rotate forward, that is, the rotating shaft 6 will only rotate in a single direction, and the single-direction rotation of the rotating shaft 6 also conforms to the rotation allowed by the first one-way bearing 401. Therefore, the rotating shaft 6 will only rotate in one direction to charge the spring 11.

[0051] Since the limiting block 14 is located in the limiting groove 901 at this time, the limiting block 14 limits the turntable 9, so the turntable 9 and the first annular gear 10 cannot rotate, and the energy stored in the spring 11 will not be released.

[0052] (3) When the joint part is attacked by fish or impacted by large particulate impurities carried by the water flow:

[0053] Due to the existence of the protective plate 18, the forces generated by the fish attack and the impurity impact will be applied to the protective plate 18. After the protective plate 18 is stressed, it is transmitted to the second piston 17. The second piston 17 is stressed and compresses the buffer spring 16, causing the air pressure in the groove 15 to increase.

[0054] The gas flow channel 2031, the gas storage tank 2051 and the groove 15 are connected to each other. When the second piston 17 compresses the buffer spring 16, the air pressure in the groove 15 will increase, and the air pressures inside the connected gas flow channel 2031 and the gas storage tank 2051 will also increase accordingly. Under the action of the pressure, the plunger 12 is driven to slide in the gas flow channel 2031, thereby driving the limiting block 14 to slide synchronously, so that the limiting block 14 moves out of the limiting groove 901.

[0055] At this time, since the limiting block 14 moves out of the limiting groove 901, the turntable 9 is in a freely rotatable state, and the first annular gear 10 fixedly connected to the turntable 9 can also rotate freely. The elastic potential energy of the spring 11 will be converted into the kinetic energy for driving the first annular gear 10 to rotate.

[0056] When the first ring gear 10 is driven by the mainspring 11 to rotate, the first ring gear 10 will drive the first gear 19 to rotate. The first gear 19 will drive the driven face gear 20 to rotate. The rotation of the driven face gear 20 will drive the reciprocating screw 21 to rotate. Since the first piston 22 is threadedly connected to the reciprocating screw 21 and the first piston 22 will not rotate with the reciprocating screw 21, during the rotation of the reciprocating screw 21, the first piston 22 will be driven to slide back and forth in the cylinder block 29. Since the first one-way valve 23 only allows the external liquid to enter the cylinder block 29, and the second one-way valve 26 only allows the liquid in the cylinder block 29 to flow into the water body accommodating groove 2051, during the back-and-forth sliding of the first piston 22, the external water body will be conveyed into the water body accommodating groove 2051, and the water body in the water body accommodating groove 2051 will be diverted into a plurality of liquid flow channels 27.

[0057] After the water body in the water body accommodating groove 2051 is conveyed into the liquid flow channel 27, the water pressure in the liquid flow channel 27 increases, and the water body in the liquid flow channel 27 will be ejected from the nozzle 28, thereby radially emitting a high-speed water flow around the joint.

[0058] The high-speed water flow ejected from the nozzle 28 will expel nearby fish and impurities to prevent damage to the optical fiber inside the optical cable and the connector due to fish attacks and impurity impacts.

[0059] (4) When there are no nearby fish and impurities, the second piston 17 will be reset under the elastic force of the buffer spring 16, and the plunger 12 will also be reset under the elastic force of the compression spring 13. During the reset process of the plunger 12, since the Tesla valve 25 is installed in the gas flow channel 2031, the reset time of the plunger 12 is much longer than the time for the plunger 12 to compress the compression spring 13.

[0060] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is limited by the appended claims and their equivalents.

Claims

1. A quick-connect underwater pluggable optical connector, comprising an optical cable (1), a female connector (101) and a male connector (102), the female connector (101) and the male connector (102) being matched with each other, and both the female connector (101) and the male connector (102) being connected to the optical cable (1), characterized in that: A protection structure (2) is provided on the female connector (101) of the optical connector and the male connector (102) of the optical connector to prevent the joint part from being attacked by external forces. The protection structure (2) includes a flange (201), an inner sleeve (204) and an outer sleeve (205). The inner sleeve (204) is coaxially fixed on the male connector (102) and the female connector (101). The outer sleeve (205) is rotatably fitted on the inner sleeve (204). The flange (201) is coaxially fixed at the end of the inner sleeve (204). A plurality of liquid flow channels (27) are provided on the outer sleeve (205) to accommodate the flow of water. The liquid flow channels (27) are provided with a plurality of nozzles (28). The inner sleeve (204) is provided with a pressurization structure for inputting water into the liquid flow channels (27) when the joint is attacked.

2. The quick-connect underwater pluggable optical connector according to claim 1, characterized in that: The pressurization structure includes a housing (203) and a reciprocating screw (21). The reciprocating screw (21) is rotatably installed on the inner sleeve (204). The housing (203) is rotatably installed on the outer sleeve (205). A cylinder block (29) is fixed on the housing (203). The reciprocating screw (21) is rotatably installed on the cylinder block (29). A first gear (19) is coaxially fixed on the outer sleeve (205). A driven end face gear (20) is fixed on the reciprocating screw (21). The first gear (19) is matched with the driven end face gear (20). A first piston (22) is slidably fitted in the cylinder block (29). The first piston (22) is screwed on the reciprocating screw (21). A first one-way valve (23) is provided on the first piston (22). A connecting pipe (24) is fixed on the housing (203). A second one-way valve (26) is provided in the connecting pipe (24). One end of the connecting pipe (24) is fixed on the cylinder block (29). A water body accommodating groove (2051) is provided on the outer sleeve (205). A plurality of liquid flow channels (27) are all communicated with the water body accommodating groove (2051). The other end of the connecting pipe (24) extends into the water body accommodating groove (2051) and is slidably fitted with the water body accommodating groove (2051).

3. The quick-connect underwater pluggable optical connector according to claim 2, wherein: A driving structure is provided inside the housing (203) to drive the first gear (19) to rotate. The driving structure includes a connecting plate (4) and a clockwork spring (11). The connecting plate (4) is fixedly connected to the inner sleeve (204). A first one-way bearing (401) is provided on the connecting plate (4). A rotating shaft (6) is installed inside the first one-way bearing (401). A turntable (9) is rotatably installed on the rotating shaft (6). A first annular gear (10) is coaxially fixedly connected to the turntable (9). The first annular gear (10) is matched with the first gear (19). One end of the clockwork spring (11) is fixedly connected to the rotating shaft (6), and the other end is fixedly connected to the first annular gear (10).

4. The quick-connect underwater pluggable optical connector according to claim 3, wherein: A power structure is provided on the flange (201) to charge the clockwork spring (11). The power structure includes a second annular gear (3) and a short shaft (5). The second annular gear (3) is rotatably installed on the flange (201). A water wheel (202) is coaxially fixedly connected to the second annular gear (3). A second one-way bearing (601) and a third one-way bearing (602) are installed on the rotating shaft (6). A second gear (7) is installed on the second one-way bearing (601). A third gear (8) is installed on the third one-way bearing (602). The second gear (7) is matched with the second annular gear (3). The short shaft (5) is fixedly connected to the inner sleeve (204). A transmission face gear (501) is rotatably installed on the short shaft (5). Both the second gear (7) and the third gear (8) are engaged with the transmission face gear (501).

5. The quick-connect underwater pluggable optical connector according to claim 4, characterized in that: A control structure is provided on the housing (203) to control the rotation of the first annular gear (10). The control structure includes a plunger (12). A gas flow channel (2031) is formed on the housing (203). The plunger (12) is slidably fitted inside the gas flow channel (2031). A compression spring (13) is provided inside the gas flow channel (2031) to apply an elastic force to the plunger (12). A limit block (14) is fixedly connected to the plunger (12). A plurality of limit grooves (901) are formed on the turntable (9). The limit block (14) is slidably fitted inside the limit grooves (901).

6. The quick-connect underwater pluggable optical connector according to claim 5, characterized in that: A plurality of grooves (15) are formed on the outer sleeve (205). A second piston (17) is slidably fitted inside the grooves (15). A protective plate (18) is fixedly connected to the second piston (17). A plurality of buffer springs (16) are fixedly connected inside the grooves (15) to apply an elastic force to the second piston (17).

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