Underwater wet-type plug-in optical connector under-pressure plug-in testing device

Abstract

The utility model discloses an underwater wet-type plug-in optical connector under-pressure plug-in testing device, which comprises a testing cavity 1, turbid seawater is filled in the testing cavity 1, and an underwater socket 2 is fixedly connected to one side, close to the inside of the testing cavity 1, of one end of the testing cavity 1. The side, close to the interior of the testing cavity 1, of the other end of the testing cavity 1 is movably connected with an underwater plug 3, and the underwater plug 3 and the underwater socket 2 are subjected to a plugging test in a turbid seawater environment. The test cavity 1 is also provided with a pressure control assembly 4 used for adjusting the water pressure of the turbid seawater, a heating assembly 5 used for adjusting the temperature of the turbid seawater, an insertion return loss tester 6 used for testing the optical fiber loss in the insertion and extraction process, and a stirring assembly 7 used for stirring the turbid seawater. The utility model provides an underwater wet-type plugging optical joint under-pressure plugging test device which can simulate a complex underwater environment and carry out cable connection tests.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable connection test field, specifically is a kind of underwater wet plug-in optical connector pressure plug-in test device. BACKGROUND

[0002] At present, pressure cabin is widely used in simulating water depth pressure environment, but conventional pressure cabin can only simulate single water pressure condition, cannot satisfy the multi-condition multi-factor simulation demand of complex underwater working condition. Especially when simulating the operating condition of underwater wet plug-in optical connector, this limitation is particularly obvious. The plug-in operation of underwater wet plug-in optical connector is completed in complex marine environment, not only affected by deep water pressure and seawater salinity, but also may stir up seabed silt during operation, causing the surrounding environment to become turbid, which in turn will also affect the joint insertion. SUMMARY

[0003] The utility model solves the technical problem that: provide a kind of underwater wet plug-in optical connector pressure plug-in test device that can simulate complex underwater environment and carry out cable connection test.

[0004] The utility model discloses the technical scheme that the above problem is solved as follows: a kind of underwater wet plug-in optical connector pressure plug-in test device, including test cavity, the test cavity is filled with turbid seawater, one end of the test cavity is fixedly connected with underwater socket on the side close to the inside of test cavity, the other end of the test cavity is movably connected with underwater plug on the side close to the inside of test cavity, the underwater plug is inserted and tested with underwater socket in turbid seawater environment, the test cavity is also provided with pressure control assembly for adjusting the water pressure of turbid seawater, heating assembly for adjusting the temperature of turbid seawater, back loss tester for testing the loss of optical fiber in plug-in process and stirring assembly for stirring turbid seawater.

[0005] Compared with prior art, the utility model has the advantages that: simulate the underwater operation environment of seawater by filling turbid seawater in test cavity, control the water pressure of seawater in test cavity by pressure control assembly, thereby simulate the underwater operation environment of different depths, control the temperature of seawater in test cavity by heating assembly, thereby simulate the underwater operation environment of different temperatures, such as different depths of seawater temperature, different latitudes of seawater temperature, simulate the underwater operation environment of seawater disturbance, driving silt rolling by the stirring of stirring assembly, and the design of back loss tester is used to detect the loss of optical fiber in the plug-in process of underwater plug and underwater socket in simulated marine environment, thereby detecting the test data closer to actual application working condition, so that data is more accurate.

[0006] As a kind of improvement of the utility model, one end of the test cavity is equipped with optical fiber cabin penetration end cover, the edge of optical fiber cabin penetration end cover is sealed with the inner wall of test cavity Connection, the area close to the center of optical fiber cabin penetration end cover is equipped with multiple cabin penetration connectors sealed with optical fiber cabin penetration end cover, multiple cabin penetration connectors are respectively used for multiple static connection lines to connect the inside of test cavity and outside of test cavity, through the improvement, the closure of one end of test cavity is realized, and the detection equipment at this end does not need to be placed in test cavity as a whole to reduce the volume of test cavity, and the contact range of detection equipment and turbid seawater can be reduced, to avoid seawater corrosion of detection equipment, to prolong the service life of detection equipment.

[0007] As a kind of improvement of the utility model, the heating assembly includes thermocouple and temperature display instrument, the thermocouple is arranged in the inside of test cavity for detecting the temperature of turbid seawater, the temperature display instrument is arranged outside test cavity for observing the temperature of turbid seawater, the thermocouple and temperature display instrument are connected through the electric connection line passing through cabin penetration connector, through the improvement, the temperature of turbid seawater is monitored, and the temperature display instrument is arranged outside test cavity, to avoid the problem of seawater corrosion of temperature display instrument.

[0008] As a kind of improvement of the utility model, the plug back loss tester is connected with two strip optical fibers, the plug back loss tester is arranged outside test cavity, two strip optical fibers pass through a cabin penetration connector respectively and are connected with underwater plug and underwater socket respectively, through the improvement, the connection of plug back loss tester and underwater plug and underwater socket is realized, so that the optical fiber loss of underwater plug and underwater socket in the process of plugging and unplugging can be measured, and the plug back loss tester is arranged outside test cavity, to avoid the problem of seawater corrosion of plug back loss tester.

[0009] As a kind of improvement of the utility model, the other end of the test cavity is equipped with connecting rod cabin penetration end cover, the edge of connecting rod cabin penetration end cover is sealed with the inner wall of test cavity, the area close to the center of connecting rod cabin penetration end cover is equipped with multiple sealing assemblies dynamically sealed with connecting rod cabin penetration end cover, multiple sealing assemblies are respectively used for multiple dynamic connecting rods to connect the inside of test cavity and outside of test cavity, through the improvement, the closure of the other end of test cavity is realized, and the driving equipment at this end does not need to be placed in test cavity as a whole to reduce the volume of test cavity, and the contact range of driving equipment and turbid seawater can be reduced, to avoid seawater corrosion of driving equipment, to prolong the service life of driving equipment.

[0010] As an improvement of the utility model, the underwater plug is fixedly connected to a moving seat, the moving seat comprises two moving plates and a plurality of moving connecting rods, the two moving plates are respectively arranged inside and outside the test cavity, the plurality of moving connecting rods are movably and sealingly connected to the connecting rod cabin-penetrating end cover, the moving plate arranged inside the test cavity is fixedly connected to the underwater plug, the moving plate arranged outside the test cavity is fixedly connected to the moving end of the hydraulic cylinder, the sealing assembly for movably and sealingly connecting the connecting rod cabin-penetrating end cover and the moving connecting rod comprises a dustproof ring and two one-way sealing rings arranged in the same direction, through the improvement, the underwater plug is drivingly connected to the hydraulic cylinder, meanwhile, the stability of the driving connection is ensured through the design of the plurality of moving connecting rods, the hydraulic cylinder is arranged outside the test cavity, so that the volume of the test cavity can be reduced, the contact between the hydraulic cylinder and the turbid seawater can be reduced, the hydraulic cylinder is prevented from being corroded by seawater, and the service life of the hydraulic cylinder is prolonged, the design of the dustproof ring can prevent the silt in the test cavity from penetrating into the moving connecting rod and the connecting rod cabin-penetrating end cover, and the design of the two one-way sealing rings can prevent seawater from seeping out between the moving connecting rod and the connecting rod cabin-penetrating end cover during the movement of the moving connecting rod.

[0011] As an improvement of the utility model, the stirring assembly comprises a stirring propeller and a driving motor, the stirring propeller is arranged inside the test cavity, the driving motor is arranged outside the test cavity, the stirring propeller and the driving motor are drivingly connected through a rotating connecting rod, the rotating connecting rod is rotatably and sealingly connected to the connecting rod cabin-penetrating end cover, the sealing assembly between the rotating connecting rod and the connecting rod cabin-penetrating end cover comprises a dustproof ring and two rotary sealing rings, through the improvement, the stirring assembly can stir the turbid seawater, the driving motor is arranged outside the test cavity, so that the volume of the test cavity can be reduced, the contact range between the driving motor and the turbid seawater can be reduced, the driving motor is prevented from being corroded by seawater, and the service life of the driving motor is prolonged, the design of the dustproof ring can prevent the silt in the test cavity from penetrating into the rotating connecting rod and the connecting rod cabin-penetrating end cover, and the design of the two rotary sealing rings can prevent seawater from seeping out between the rotating connecting rod and the connecting rod cabin-penetrating end cover during the rotation of the rotating connecting rod.

[0012] As an improvement of the utility model, the plurality of moving connecting rods are arranged along the circumference of the stirring propeller, the moving connecting rods are provided with limiting protrusions on the area inside the test cavity, through the improvement, the design of the limiting protrusions can prevent the moving connecting rods from interfering with the stirring propeller during the movement, so as to ensure the use safety of the stirring propeller.

[0013] As a kind of improvement of the utility model, the pressure control component includes one water inlet valve, one overflow valve and one hydraulic gauge, the water inlet valve is located below test cavity, the overflow valve is located above test cavity, and the water inlet valve and overflow valve are respectively located at both ends of test cavity, through the improvement, realize that test cavity is filled from water inlet valve, until overflow from overflow valve, guarantee the sufficiency of turbid seawater in test cavity, while water inlet valve can also be used as water outlet valve, after testing is completed, carry out water outlet, and overflow valve can also be used as pressure booster, increase the water pressure in test cavity by overflow valve, facilitate simulating turbid seawater of different depths, and the design of hydraulic gauge is used to accurately monitor the current hydraulic pressure of turbid seawater.

[0014] As a kind of improvement of the utility model, the heating assembly further includes heat exchanger, the heat exchanger includes heat exchange pipe, the heat exchange pipe uniformly wraps the outer wall of test cavity, through the improvement, realize the temperature control of turbid seawater, and guarantee the temperature uniformity of turbid seawater. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the internal structure schematic diagram of the utility model whole test cavity.

[0016] Figure 2 It is the optical fiber cabin end cover connecting structure schematic diagram of the utility model.

[0017] Figure 3 It is the connecting rod cabin end cover connecting structure schematic diagram of the utility model.

[0018] Figure 4 It is the heat exchange pipe wrapping test cavity structure schematic diagram of the utility model.

[0019] As shown in the figure: 1, test cavity, 2, underwater socket, 3, underwater plug, 4, pressure control component, 4.1, water inlet valve, 4.2, overflow valve, 4.3, hydraulic gauge, 5, heating assembly, 5.1, thermocouple, 5.2, temperature display instrument, 5.3, heat exchanger, 5.3.1, heat exchange pipe, 6, plug back loss tester, 6.1, ribbon optical fiber, 7, stirring assembly, 7.1, stirring propeller, 7.2, drive motor, 7.3, rotating connecting rod, 8, optical fiber cabin end cover, 8.1, cabin connecting piece, 9, connecting rod cabin end cover, 10, sealing assembly, 10.1, dust ring, 10.2, one-way sealing ring, 10.3, rotary sealing ring, 11, moving seat, 11.1, moving plate, 11.2, moving connecting rod, 11.2.1, limit lug, 12, hydraulic cylinder. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are further described below in combination with the drawings.

[0021] As Figure 1As shown, a kind of underwater wet plug-in optical connector pressure plug-in test device, including test cavity 1, the test cavity 1 is filled with turbid seawater, one end of the test cavity 1 is fixedly connected with underwater socket 2 near the inside of test cavity 1, the other end of the test cavity 1 is movably connected with underwater plug 3 near the inside of test cavity 1, underwater plug 3 is plugged in and out with underwater socket 2 under turbid seawater environment, test cavity 1 is also provided with pressure control assembly 4 for adjusting the water pressure of turbid seawater, heating assembly 5 for adjusting the temperature of turbid seawater, return loss tester 6 for testing the loss of optical fiber in the process of plugging and unplugging and stirring assembly 7 for stirring turbid seawater.

[0022] As Figures 1-2 shown, one end of the test cavity 1 is provided with fiber cabin end cover 8, the edge of the fiber cabin end cover 8 is sealingly connected with the inner wall of the test cavity 1, and a fixing ring is also provided at the end of the fiber cabin end cover 8 away from the center of the test cavity 1, the fixing ring is screw-fixedly connected with the inner wall of the test cavity to ensure that the fiber cabin end cover 8 will not be separated from the test cavity 1, and a plurality of cabin connection pieces 8.1 sealingly connected with the fiber cabin end cover 8 are provided in the area close to the center of the fiber cabin end cover 8, and the plurality of cabin connection pieces 8.1 are respectively used for connecting the inside of the test cavity 1 with the outside of the test cavity 1 by a plurality of static connection lines.

[0023] The heating assembly 5 includes thermocouple 5.1 and temperature display instrument 5.2, the thermocouple 5.1 is arranged in the inside of the test cavity 1 for detecting the temperature of turbid seawater, the temperature display instrument 5.2 is arranged outside the test cavity 1 for observing the temperature of turbid seawater, and the thermocouple 5.1 is connected with the temperature display instrument 5.2 through the electric connection line passing through the cabin connection piece 8.1; the return loss tester 6 is connected with two strip optical fibers 6.1, the return loss tester 6 is arranged outside the test cavity 1, and the two strip optical fibers 6.1 pass through a cabin connection piece 8.1 respectively and are connected with underwater plug 3 and underwater socket 2 respectively.

[0024] As Figure 1 , Figure 3 shown, the other end of the test cavity 1 is provided with connection rod cabin end cover 9, the edge of the connection rod cabin end cover 9 is sealingly connected with the inner wall of the test cavity 1, and a fixing ring is also provided at the end of the connection rod cabin end cover 9 away from the center of the test cavity 1, the fixing ring is screw-fixedly connected with the inner wall of the test cavity to ensure that the connection rod cabin end cover 9 will not be separated from the test cavity 1, and a plurality of sealing assemblies 10 dynamically sealingly connected with the connection rod cabin end cover 9 are provided in the area close to the center of the connection rod cabin end cover 9, and the plurality of sealing assemblies 10 are respectively used for connecting the inside of the test cavity 1 with the outside of the test cavity 1 by a plurality of dynamic connection rods.

[0025] The underwater plug 3 is fixedly connected to a moving seat 11, the moving seat 11 comprises two moving plates 11.1 and a plurality of moving connecting rods 11.2, the two moving plates 11.1 are respectively arranged inside and outside the test cavity 1, the plurality of moving connecting rods 11.2 are movably and sealingly connected to the connecting rod cabin end cover 9, the moving plate 11.1 arranged inside the test cavity 1 is fixedly connected to the underwater plug 3, the moving plate 11.1 arranged outside the test cavity 1 is fixedly connected to the moving end of the hydraulic cylinder 12, the sealing assembly 10 for movably and sealingly connecting the connecting rod cabin end cover 9 and the moving connecting rod 11.2 comprises a dustproof ring 10.1 and two one-way sealing rings 10.2 arranged in the same direction; the stirring assembly 7 comprises a stirring propeller 7.1 and a driving motor 7.2, the stirring propeller 7.1 is arranged inside the test cavity 1, the driving motor 7.2 is arranged outside the test cavity 1, the stirring propeller 7.1 and the driving motor 7.2 are drivingly connected through a rotating connecting rod 7.3, the rotating connecting rod 7.3 is rotatably and sealingly connected to the connecting rod cabin end cover 9, the sealing assembly 10 between the rotating connecting rod 7.3 and the connecting rod cabin end cover 9 comprises a dustproof ring 10.1 and two rotating sealing rings 10.3; the plurality of moving connecting rods 11.2 are arranged along the circumference of the stirring propeller 7.1, the moving connecting rod 11.2 is provided with a limiting protrusion 11.2.1 on the area inside the test cavity 1, the one-way sealing ring 10.2 is composed of a combination of a rubber O-ring and a polytetrafluoroethylene ring, and the rotating sealing ring 10.3 is composed of a combination of a rubber O-ring and a polytetrafluoroethylene ring.

[0026] As shown in Figure 1 , Figure 4 , the pressure control assembly 4 comprises a water inlet valve 4.1, a water overflow valve 4.2 and a hydraulic gauge 4.3, the water inlet valve 4.1 is arranged below the test cavity 1, the water overflow valve 4.2 is arranged above the test cavity 1, and the water inlet valve 4.1 and the water overflow valve 4.2 are respectively arranged at the two ends of the test cavity 1, so as to realize water injection from the water inlet valve 4.1 in the test cavity 1 until water overflow from the water overflow valve 4.2, and ensure the sufficiency of the turbid seawater in the test cavity 1, at the same time, the water inlet valve 4.1 can also be used as a water outlet valve to drain water after the test is completed, and the water overflow valve 4.2 can also be used as a pressure increasing valve to increase the water pressure in the test cavity 1, so as to facilitate the simulation of turbid seawater at different depths, and the design of the hydraulic gauge 4.3 is used to accurately monitor the current hydraulic pressure of the turbid seawater; the heating assembly 5 further comprises a heat exchanger 5.3, the heat exchanger 5.3 comprises heat exchange pipes 5.3.1, and the heat exchange pipes 5.3.1 uniformly wrap the outer wall of the test cavity 1.

[0027] Through the design of the underwater wet plug-in and plug-out optical joint pressure plug-in and plug-out test device, underwater operation environments under different depths, different temperatures and different ocean current environments can be simulated, so that the plug-in and plug-out effects of the underwater plug 3 and the underwater socket 2 under different operation environments can be more accurately tested, and then the effectiveness of underwater plug-in and plug-out operation in actual operation process can be ensured.

[0028] The above only describes the best embodiment of the present application, but cannot be understood as a limitation on the claims. The present application is not limited to the above embodiments, and the specific structure can be changed. Any changes made within the protection scope of the independent claims of the present application are within the protection scope of the present application.

Claims

1. An underwater wet-plug optical connector pressure plug-in and pull-out test device, characterized by: The invention comprises a test chamber (1), wherein the test chamber (1) is filled with turbid seawater, one end of the test chamber (1) is fixedly connected to an underwater socket (2) near the inside of the test chamber (1), and the other end of the test chamber (1) is movably connected to an underwater plug (3) near the inside of the test chamber (1), wherein the underwater plug (3) performs a plug-in and pull-out test with the underwater socket (2) in a turbid seawater environment, and the test chamber (1) is further provided with a pressure control component (4) for adjusting the water pressure of the turbid seawater, a heating component (5) for adjusting the temperature of the turbid seawater, an insertion loss tester (6) for testing the loss of optical fiber during the plug-in and pull-out process, and a stirring component (7) for stirring the turbid seawater.

2. The underwater wet-plug optical connector pressure plugging and unplugging test device according to claim 1, characterized in that: One end of the test cavity (1) is provided with an optical fiber penetration end cover (8), the edge of the optical fiber penetration end cover (8) is sealedly connected to the inner wall of the test cavity (1), and a plurality of penetration connectors (8.1) sealedly connected to the optical fiber penetration end cover (8) are provided in an area near the center of the optical fiber penetration end cover (8), and the plurality of penetration connectors (8.1) are respectively used for connecting a plurality of static connection lines to the inside of the test cavity (1) and the outside of the test cavity (1).

3. The underwater wet-plug optical connector pressure plugging and unplugging test device according to claim 2, characterized in that: The heating assembly (5) comprises a thermocouple (5.1) and a temperature display (5.2); the thermocouple (5.1) is arranged inside the test chamber (1) for detecting the temperature of the turbid seawater; the temperature display (5.2) is arranged outside the test chamber (1) for observing the temperature of the turbid seawater; the thermocouple (5.1) and the temperature display (5.2) are connected via an electrical connection line passing through a through-tank connector (8.1).

4. The underwater wet-plug optical connector pressure plugging and unplugging test device according to claim 2, characterized in that: The insertion loss tester (6) is connected to two ribbon optical fibers (6.1). The insertion loss tester (6) is arranged outside the test chamber (1). The two ribbon optical fibers (6.1) respectively pass through a chamber connection piece (8.1) and are respectively connected to the underwater plug (3) and the underwater socket (2).

5. The underwater wet-plug optical connector pressure plugging and unplugging test device according to claim 1, characterized in that: The other end of the test cavity (1) is provided with a connecting rod through-cabin end cover (9), the edge of the connecting rod through-cabin end cover (9) is sealedly connected to the inner wall of the test cavity (1), and a plurality of sealing assemblies (10) dynamically sealedly connected to the connecting rod through-cabin end cover (9) are provided in an area near the center of the connecting rod through-cabin end cover (9), and the plurality of sealing assemblies (10) are respectively used for connecting the interior of the test cavity (1) and the exterior of the test cavity (1) with a plurality of connecting rods in dynamic state.

6. The underwater wet-plug optical connector pressure plugging and unplugging test device according to claim 5, characterized in that: The underwater plug (3) is fixedly connected to a movable seat (11). The movable seat (11) includes two movable plates (11.1) and a plurality of movable connecting rods (11.2). The two movable plates (11.1) are respectively arranged inside the test chamber (1) and outside the test chamber (1). The plurality of movable connecting rods (11.2) are movably and sealingly connected to the connecting rod through-the-hatch end cover (9). The movable plate (11.1) arranged inside the test chamber (1) is fixedly connected to the underwater plug (3), and the movable plate (11.1) arranged outside the test chamber (1) is fixedly connected to the movable end of the hydraulic cylinder (12). The sealing assembly (10) for movably and sealingly connecting the connecting rod through-the-hatch end cover (9) and the movable connecting rod (11.2) includes a dust ring (10.1) and two one-way sealing rings (10.2) arranged in the same direction.

7. The underwater wet-plug optical connector pressure plugging and unplugging test device according to claim 6, characterized in that: The stirring assembly (7) comprises a stirring propeller (7.1) and a driving motor (7.2); the stirring propeller (7.1) is arranged inside the test chamber (1); the driving motor (7.2) is arranged outside the test chamber (1); the stirring propeller (7.1) and the driving motor (7.2) are connected to each other by a rotating connecting rod (7.3); the rotating connecting rod (7.3) is connected to a connecting rod through-cabin end cover (9) in a rotating and sealing manner; the sealing assembly (10) between the rotating connecting rod (7.3) and the connecting rod through-cabin end cover (9) comprises a dust ring (10.1) and two rotating sealing rings (10.3).

8. The underwater wet-plug optical connector under-pressure plugging and unplugging test device according to claim 7, characterized in that: A plurality of movable connecting rods (11.2) are arranged along the circumference of the stirring propeller (7.1), and a limiting protrusion (11.2.1) is provided on the area where the movable connecting rods (11.2) are arranged in the test chamber (1).

9. The underwater wet-plug optical connector under pressure plugging and unplugging test device according to claim 1, characterized in that: The pressure control assembly (4) comprises a water inlet valve (4.1), a water overflow valve (4.2) and a hydraulic pressure gauge (4.3); the water inlet valve (4.1) is arranged below the test chamber (1); the water overflow valve (4.2) is arranged above the test chamber (1); and the water inlet valve (4.1) and the water overflow valve (4.2) are respectively arranged at two ends of the test chamber (1).

10. The underwater wet-plug optical connector under-pressure plugging and unplugging test device according to claim 1, characterized in that: The heating assembly (5) further comprises a heat exchanger (5.3), wherein the heat exchanger (5.3) comprises a heat exchange tube (5.3.1), and the heat exchange tube (5.3.1) uniformly wraps the outer wall of the test cavity (1).

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