Sealing device for oil leakage point of intermediate joint of submarine oil-filled cable

Abstract

The application discloses a plugging device for oil leakage points of a submarine oil-filled cable intermediate joint, and particularly relates to the field of oil-filled cables, which comprises an oil-filled cable, a cable intermediate joint and a sealing washer, the cable intermediate joint is sleeved on the outer wall of the oil-filled cable, the sealing washer is fixedly connected to one end of the cable intermediate joint, the outer wall of the oil-filled cable is fixedly connected with a sealing shell, an oil discharge pipe is connected to the bottom of the sealing shell, an oil storage barrel is connected to the bottom of the oil discharge pipe, a support is fixedly connected to the inner wall of the oil discharge pipe, and a transmission rotating column is connected to the inner wall of the support through a bearing. When the cable intermediate joint leaks, oil enters the oil discharge pipe and impacts the rotating fan blade, and finally the movable extrusion block extrudes the sealing washer into the cable intermediate joint, thus solving the problem that the traditional submarine oil-filled cable intermediate joint leaks and causes a series of safety hazards during use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil-filled cable, more particularly, the present application relates to a plugging device for oil leakage point of submarine oil-filled cable intermediate joint. BACKGROUND

[0002] Oil-filled cable is a self-contained pressure cable with insulating oil as the pressurized fluid, and the oil can flow freely in the cable. The self-contained oil-filled cable has a longitudinal oil channel in the center of the conductor and a metal jacket outside the insulating layer. Another type of steel pipe cable is to place the insulating wire core into the steel pipe as a sheath, and fill the steel pipe with pressurized fluid such as oil or gas during use. The insulating performance of oil-filled cable is excellent, can withstand very high working electric field strength, has very low dielectric loss, good heat dissipation, reliable sheath protection and joint accessories.

[0003] The traditional submarine oil-filled cable intermediate joint has a problem of oil leakage and repair during use. At present, there is no effective method to completely treat the oil leakage point, but if the oil leakage problem is not solved, it will cause a series of safety problems such as fire. Therefore, how to design a submarine oil-filled cable intermediate joint oil leakage point plugging device that can timely plug the oil leakage point of the oil-filled cable intermediate joint has become a problem we need to solve at present. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a submarine oil-filled cable intermediate joint oil leakage point plugging device. By setting the movable part and the movable extrusion block, when the cable intermediate joint leaks, the oil will enter the oil discharge pipe and impact the rotating fan blade, and finally the movable extrusion block will extrude the sealing washer into the cable intermediate joint, so as to solve the problems raised in the above background.

[0005] In order to achieve the above object, the application provides the following technical scheme: the oil leakage point sealing device of the submarine oil-filled cable intermediate joint, comprising an oil-filled cable, a cable intermediate joint and a sealing washer, the cable intermediate joint is sleeved on the outer wall of the oil-filled cable, the sealing washer is fixedly connected to one end of the cable intermediate joint, the outer wall of the oil-filled cable is fixedly connected with a sealing shell, the bottom of the sealing shell is connected with an oil discharge pipe, the bottom of the oil discharge pipe is connected with an oil storage barrel, the inner wall of the oil discharge pipe is fixedly connected with a support, the inner wall of the support is connected with a transmission rotating column through a bearing, the outer wall of the transmission rotating column is fixedly connected with a rotating fan blade, the rotating fan blade is arranged in an inclined manner, the top of the transmission rotating column is fixedly connected with a rotating plate, the top of the rotating plate is fixedly connected with a movable push column, the outer wall of the movable push column is fixedly connected with a movable part, one side of the movable part is fixedly connected with a movable push rod, one end of the movable push rod is fixedly connected with a movable support, the bottom of the movable support is fixedly connected with a movable extrusion ring, the movable extrusion ring is slidably connected to the outer wall of the oil-filled cable, one side of the movable extrusion ring is fixedly connected with a movable extrusion block which extrudes the sealing washer after moving, and the movable extrusion block is arranged on one side of the sealing washer.

[0006] By adopting the above technical scheme, when the oil pressure in the oil-filled cable changes, the sealing washer will be extruded and moved, the cable intermediate joint cannot be sealed, oil will leak, the leaked oil will be blocked by the sealing shell and enter the oil discharge pipe, the oil will be collected in the oil storage barrel through the oil discharge pipe, when the oil enters the oil discharge pipe, it will impact the rotating fan blade to make it rotate, the rotating fan blade will drive the transmission rotating column to rotate, the transmission rotating column will drive the rotating plate to rotate, the rotating plate will drive the movable push column to move, the movable push column will drive the movable part to move, the movable part will drive the movable push rod to move, the movable push rod will drive the movable support to move, the movable support will drive the movable extrusion ring to move, the movable extrusion ring will drive the movable extrusion block to move, and the movable extrusion block will extrude the sealing washer into the cable intermediate joint, preventing the oil from leaking through the cable intermediate joint, and the oil storage barrel can collect the oil to prevent it from being exposed to the air, thus solving the problem of traditional submarine oil-filled cable intermediate joints which may leak oil and cause a series of safety hazards.

[0007] In a preferred embodiment, the inner wall of the oil storage barrel is fixedly connected with a support seat, and the bottom of the support seat is fixedly connected with a warning buzzer.

[0008] By adopting the above technical scheme, when the cable intermediate joint leaks, the warning buzzer can emit a sound to remind the surrounding workers that the cable intermediate joint has leaked and needs to be observed in time to avoid safety problems.

[0009] In one preferred embodiment, the inner wall of the oil storage barrel is fixedly connected with a support rotating shaft, the outer wall of the support rotating shaft is hingedly connected with a movable rotating plate, one side of the movable rotating plate is fixedly connected with a corresponding type of impact block that impacts the warning bell after moving, and the corresponding type of impact block is arranged on one side of the warning bell.

[0010] Through the above technical scheme, the staff can rotate the movable rotating plate, so that the movable rotating plate drives the corresponding type of impact block to impact the warning bell, thereby making the warning bell emit a sound.

[0011] In one preferred embodiment, the bottom of the transmission rotating column is fixedly connected with a movable extrusion block that extrudes the movable rotating plate after rotating, and the movable extrusion block is arranged on one side of the movable rotating plate.

[0012] Through the above technical scheme, when the cable intermediate joint leaks, the transmission rotating column will rotate, the transmission rotating column will drive the movable extrusion block to rotate, the movable extrusion block will extrude the movable rotating plate, the movable rotating plate will drive the corresponding type of impact block to rotate, the corresponding type of impact block will impact the warning bell, and the warning bell will emit a sound to remind the surrounding staff to observe the state of the oil-filled cable in time, thereby avoiding safety problems.

[0013] In one preferred embodiment, one side of the movable rotating plate is fixedly connected with a support spring, one end of the support spring is fixedly connected with a support block, and the support block is fixedly installed on the inner wall of the oil storage barrel.

[0014] Through the above technical scheme, the support spring can reset the movable rotating plate after rotating, so that the movable rotating plate will continuously drive the corresponding type of impact block to rotate, and the corresponding type of impact block will continuously impact the warning bell, thereby making the warning bell continuously emit a sound to remind the surrounding staff.

[0015] In one preferred embodiment, the inner wall of the oil storage barrel is fixedly connected with an alarm device, and the bottom of the alarm device is fixedly connected with an alarm switch.

[0016] Through the above technical scheme, when the oil in the oil storage barrel is almost full, the alarm device can alarm, thereby reminding the surrounding staff to clean the oil in the oil storage barrel.

[0017] In one preferred embodiment, the inside of the oil storage barrel is provided with a movable floating block, the top of the movable floating block is fixedly connected with a corresponding type of extrusion block that extrudes the alarm switch after moving, and the corresponding type of extrusion block is arranged at the bottom of the alarm switch.

[0018] When the oil in the oil storage barrel is about to be stored full, the oil moves the movable floating block upward, the movable floating block drives the corresponding extrusion block to move, and the corresponding extrusion block extrudes the alarm switch to open the alarm device to remind the surrounding staff.

[0019] In a preferred embodiment, the inner wall of the oil storage barrel is fixedly connected with a limiting clamping plate, and the movable floating block is slidingly connected to the outer wall of the limiting clamping plate.

[0020] By adopting the above technical scheme, the limiting clamping plate can limit the movement of the movable floating block, thereby avoiding shaking and deviation of the movable floating block during movement, and enabling the corresponding extrusion block to accurately extrude the alarm switch.

[0021] In a preferred embodiment, the top of the oil storage barrel is hingedly connected with a movable rotating shaft, the outer wall of the movable rotating shaft is fixedly connected with a movable rotating block, one side of the movable rotating block is fixedly connected with a corresponding clamping column that is inserted into the inside of the oil discharge pipe after rotation, and the corresponding clamping column is inserted into one side of the oil discharge pipe.

[0022] By adopting the above technical scheme, when the oil in the oil storage barrel is about to be stored full, the alarm device can remind the surrounding staff by sound, at this time, the staff can rotate the movable rotating block to make the movable rotating block rotate, so that the corresponding clamping column is pulled out of the oil discharge pipe, the oil storage barrel is disconnected with the oil discharge pipe, the staff can take down the oil storage barrel, then remove the oil in the oil storage barrel, and then fix the cleaned oil storage barrel on the oil discharge pipe through the movable rotating block and the corresponding clamping column.

[0023] In a preferred embodiment, the inner wall of the sealing shell is fixedly connected with a limiting support, and the movable push rod is slidingly connected to the inner wall of the limiting support.

[0024] By adopting the above technical scheme, the limiting support can limit the movement of the movable push rod, thereby avoiding shaking and deviation of the movable push rod during movement.

[0025] Technical effects and advantages of the present application:

[0026] 1. The movable member and the movable extrusion block are arranged, when the cable intermediate joint leaks, the oil enters the oil discharge pipe and impacts the rotating fan blade, the rotating fan blade drives the transmission rotating column to make the rotating plate rotate, the rotating plate drives the movable member to move through the movable push column, the movable member moves the movable extrusion block through the movable push rod, and the movable extrusion block extrudes the sealing washer into the cable intermediate joint, thereby solving the problem that the traditional seabed oil-filled cable intermediate joint leaks during use and has a series of safety hazards.

[0027] 2, the present application is provided with the movable extrusion block and warning buzzer, when the oil leaks, the transmission rotating column will rotate, the transmission rotating column will extrude the movable rotating plate through the movable extrusion block, the movable rotating plate will drive the corresponding type of block to continue to rotate, the corresponding type of block will hit the warning buzzer, and the reset spring will reset the movable rotating plate, so that the corresponding type of block constantly hits the warning buzzer, so that the warning buzzer constantly emits sound to remind the surrounding staff to observe the state of the oil-filled cable in time, and avoid safety problems. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the overall structure schematic diagram of the present application.

[0029] Figure 2 It is the A part structure enlarged view of the present application. Figure 1

[0030] Figure 3 It is the sealing shell structure section view of the present application.

[0031] Figure 4 It is the B part structure enlarged view of the present application. Figure 3

[0032] Figure 5 It is the C part structure enlarged view of the present application. Figure 3

[0033] Figure 6 It is the D part structure enlarged view of the present application. Figure 3

[0034] Figure 7 It is the oil discharge pipe structure section view of the present application.

[0035] Figure 8 It is the E part structure enlarged view of the present application. Figure 7

[0036] Figure 9 It is the oil storage bucket structure section view of the present application.

[0037] Figure 10 It is the F part structure enlarged view of the present application. Figure 9

[0038] ​​​​​​The reference signs are: 1, oil-filled cable; 2, cable intermediate joint; 3, sealing washer; 4, sealing shell; 5, oil discharge pipe; 6, oil storage bucket; 7, support; 8, transmission rotating column; 9, rotating fan blade; 10, rotating plate; 11, movable push column; 12, movable part; 13, movable push rod; 14, movable support; 15, movable extrusion ring; 16, movable extrusion block; 17, support seat; 18, warning buzzer; 19, support rotating shaft; 20, movable rotating plate; 21, corresponding type of bump block; 22, movable extrusion block; 23, support spring; 24, support block; 25, alarm device; 26, alarm switch; 27, movable floating block; 28, corresponding type of extrusion block; 29, limiting clamping plate; 30, movable rotating shaft; 31, movable rotating block; 32, corresponding type of clamping column; 33, limiting support. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] With reference to the drawings in the description Figures 1-10 , the plugging device for oil leakage point of the submarine oil-filled cable intermediate joint in an embodiment of the present application comprises an oil-filled cable 1, a cable intermediate joint 2 and a sealing washer 3, the cable intermediate joint 2 is sleeved on the outer wall of the oil-filled cable 1, and the sealing washer 3 is fixedly connected to one end of the cable intermediate joint 2, as shown in the figure. Figure 1 As shown in the figure, the outer wall of the oil-filled cable 1 is fixedly connected with a sealing shell 4 for preventing the leaked oil of the cable intermediate joint 2 from being exposed to the air, the bottom of the sealing shell 4 is communicatively provided with an oil discharge pipe 5 for discharging the leaked oil of the cable intermediate joint 2 into an oil storage bucket 6, the bottom of the oil discharge pipe 5 is communicatively provided with the oil storage bucket 6 for storing the leaked oil of the cable intermediate joint 2, the inner wall of the oil discharge pipe 5 is fixedly connected with a support 7 for supporting a transmission rotating column 8, and the inner wall of the support 7 is connected with the transmission rotating column 8 through a bearing for driving a rotating plate 10 to rotate, as shown in the figure. Figure 5 As shown in the figure, the outer wall of the transmission rotating column 8 is fixedly connected with a rotating fan blade 9 for driving the transmission rotating column 8 to rotate, the rotating fan blade 9 is arranged in an inclined manner, the inclined rotating fan blade 9 can be more easily impacted by oil to drive the transmission rotating column 8 to rotate, the top of the transmission rotating column 8 is fixedly connected with the rotating plate 10 for driving the movable push column 11 to move after rotation, the top of the rotating plate 10 is fixedly connected with the movable push column 11 for pushing the movable part 12 to move after movement, the outer wall of the movable push column 11 is fixedly connected with the movable part 12 for driving the movable push rod 13 to move, one side of the movable part 12 is fixedly connected with the movable push rod 13 for driving the movable support 14 to move, as shown in the figure.Figure 6 As shown, one end of the movable push rod 13 is fixedly connected with a movable support 14 for driving the movable extrusion ring 15 to move, the bottom of the movable support 14 is fixedly connected with the movable extrusion ring 15 for driving the movable extrusion block 16 to move, the movable extrusion ring 15 is slidingly connected to the outer wall of the oil-filled cable 1, one side of the movable extrusion ring 15 is fixedly connected with the movable extrusion block 16 for extruding the sealing washer 3 back into the cable intermediate joint 2 after moving, the movable extrusion block 16 is arranged on one side of the sealing washer 3, the inner wall of the sealing shell 4 is fixedly connected with a limiting support 33 for limiting the movement of the movable push rod 13, and the movable push rod 13 is slidingly connected to the inner wall of the limiting support 33.

[0041] It should be noted that, when the oil pressure inside the oil-filled cable 1 changes, the sealing washer 3 will be extruded and moved, and the cable intermediate joint 2 will be unable to be blocked, and the oil will be leaked, and the leaked oil will be blocked by the sealing shell 4 and all enter the oil drain pipe 5, and the oil will be collected into the oil storage bucket 6 through the oil drain pipe 5, and the oil entering the oil drain pipe 5 will impact the rotating fan blade 9 to make the rotating fan blade 9 rotate, the rotating fan blade 9 will drive the transmission rotating column 8 to rotate, the transmission rotating column 8 will drive the rotating plate 10 to rotate, the rotating plate 10 will drive the movable push column 11 to move, the movable push column 11 will drive the movable part 12 to move, the movable part 12 will drive the movable push rod 13 to move, the movable push rod 13 will drive the movable support 14 to move, the movable support 14 will drive the movable extrusion ring 15 to move, the movable extrusion ring 15 will drive the movable extrusion block 16 to move, and the movable extrusion block 16 will extrude the sealing washer 3 back into the cable intermediate joint 2, preventing the oil from continuing to leak through the cable intermediate joint 2, and at the same time, the oil storage bucket 6 can collect the oil to avoid exposure to the air, thereby solving the problem of a series of safety hazards caused by the oil leakage of the traditional seabed oil-filled cable intermediate joint 2 during use.

[0042] At the same time, as shown in Figure 10 The inner wall of the oil storage bucket 6 is fixedly connected with a support seat 17 for fixing the warning buzzer 18, the bottom of the support seat 17 is fixedly connected with the warning buzzer 18 for emitting a sound to remind the surrounding workers to pay attention to the state of the oil-filled cable 1, and the inner wall of the oil storage bucket 6 is fixedly connected with a support rotating shaft 19 for supporting a movable rotating plate 20, as shown in Figure 10As shown, the outer wall supporting the rotating shaft 19 is hingedly connected with a movable rotating plate 20 for moving the corresponding type of block 21 after rotation, one side of the movable rotating plate 20 is fixedly connected with the corresponding type of block 21 for impacting the warning buzzer 18 after movement, the corresponding type of block 21 is arranged on one side of the warning buzzer 18, the bottom of the transmission rotating column 8 is fixedly connected with a movable extrusion block 22 for extruding the movable rotating plate 20 after rotation, the movable extrusion block 22 is arranged on one side of the movable rotating plate 20, one side of the movable rotating plate 20 is fixedly connected with a supporting spring 23 for resetting the movable rotating plate 20 after rotation, one end of the supporting spring 23 is fixedly connected with a supporting block 24 for supporting and fixing the supporting spring 23, and the supporting block 24 is fixedly installed on the inner wall of the oil storage bucket 6.

[0043] It should be noted that, when the cable intermediate joint 2 leaks, the transmission rotating column 8 rotates, the transmission rotating column 8 rotates, the transmission rotating column 8 drives the movable extrusion block 22 to rotate, the movable extrusion block 22 extrudes the movable rotating plate 20, the movable rotating plate 20 drives the corresponding type of block 21 to rotate, the corresponding type of block 21 impacts the warning buzzer 18, and the supporting spring 23 can reset the movable rotating plate 20 after rotation, so that the movable rotating plate 20 continuously drives the corresponding type of block 21 to rotate, and the corresponding type of block 21 continuously impacts the warning buzzer 18, so that the warning buzzer 18 continuously emits sound to remind the surrounding workers, and the workers need to observe the state of the oil-filled cable 1 in time to avoid safety problems.

[0044] At the same time, as shown in Figure 4 The inner wall of the oil storage bucket 6 is fixedly connected with an alarm device 25 for emitting sound to remind the workers that the oil storage bucket 6 is full, the alarm device 25 is an ND16-22FS series buzzer alarm device, the bottom of the alarm device 25 is fixedly connected with an alarm switch 26 for controlling the opening and closing of the alarm device 25, the inside of the oil storage bucket 6 is provided with a movable floating block 27 for driving the corresponding type of extrusion block 28 to move, the top of the movable floating block 27 is fixedly connected with the corresponding type of extrusion block 28 for extruding the alarm switch 26 after movement, the corresponding type of extrusion block 28 is arranged on the bottom of the alarm switch 26, the inner wall of the oil storage bucket 6 is fixedly connected with a limiting clamping plate 29 for limiting the movement of the movable floating block 27, and the movable floating block 27 is slidingly connected to the outer wall of the limiting clamping plate 29.

[0045] It should be noted that when the oil in the oil storage bucket 6 is almost full, the oil will move the movable floating block 27 upward, and the movable floating block 27 will drive the corresponding extrusion block 28 to move. The movable floating block 27 is limited by the limiting clamping plate 29, which will drive the corresponding extrusion block 28 to accurately extrude the alarm switch 26, so that the alarm device 25 can be opened to make a sound to remind the surrounding staff that the oil in the oil storage bucket 6 is almost full and needs to be cleaned in time.

[0046] Meanwhile, as shown in Figure 2 The top of the oil storage bucket 6 is hinged with a movable rotating shaft 30 for enabling the movable rotating block 31 to rotate. The outer wall of the movable rotating shaft 30 is fixedly connected with the movable rotating block 31 for driving the corresponding clamping column 32 to move. One side of the movable rotating block 31 is fixedly connected with the corresponding clamping column 32 for inserting into the oil discharge pipe 5. The corresponding clamping column 32 is inserted into one side of the oil discharge pipe 5.

[0047] It should be noted that when the oil in the oil storage bucket 6 is almost full, the alarm device 25 will make a sound to remind the surrounding staff. At this time, the staff can rotate the movable rotating block 31 through the movable rotating shaft 30, so that the corresponding clamping column 32 is pulled out of the oil discharge pipe 5. The oil storage bucket 6 is disconnected with the oil discharge pipe 5. The staff can take down the oil storage bucket 6, then clean the oil in the oil storage bucket 6, and then fix the cleaned oil storage bucket 6 on the oil discharge pipe 5 through the movable rotating block 31 and the corresponding clamping column 32.

[0048] Working principle: when the oil pressure in the oil-filled cable 1 changes, the sealing washer 3 will be squeezed and moved, unable to seal the cable intermediate joint 2, and oil will leak. The leaked oil will be blocked by the sealing shell 4 and enter the oil drain pipe 5, and through the oil drain pipe 5, the oil will be collected into the oil storage bucket 6. When the oil enters the oil drain pipe 5, it will impact the rotating fan blade 9, causing the rotating fan blade 9 to rotate, which will drive the transmission rotating column 8 to rotate, and the transmission rotating column 8 will drive the rotating plate 10 to rotate, which will drive the movable push column 11 to move, and the movable push column 11 will drive the movable part 12 to move, and the movable part 12 will drive the movable push rod 13 to move, and the movable push rod 13 will drive the movable support 14 to move, and the movable support 14 will drive the movable extrusion ring 15 to move, and the movable extrusion ring 15 will drive the movable extrusion block 16 to move, and the movable extrusion block 16 will re-extrude the sealing washer 3 into the cable intermediate joint 2, preventing oil from continuing to leak through the cable intermediate joint 2. And the transmission rotating column 8 will drive the movable extrusion block 22 to rotate, which will extrude the movable rotating plate 20, and the movable rotating plate 20 will drive the corresponding type of impact block 21 to rotate, which will impact the warning buzzer 18. And the supporting spring 23 can reset the movable rotating plate 20 after it rotates, so that the movable rotating plate 20 will continuously drive the corresponding type of impact block 21 to rotate, which will continuously impact the warning buzzer 18, so that the warning buzzer 18 will continuously emit a sound to remind the surrounding workers. When the oil in the oil storage bucket 6 is almost full, the oil will move the movable floating block 27 upwards, which will drive the corresponding type of extrusion block 28 to move. The movable floating block 27 will be limited by the limiting clamping plate 29 to accurately extrude the corresponding type of extrusion block 28 to press the alarm switch 26, so that the alarm device 25 can be turned on to make a sound. The worker can rotate the movable rotating block 31 through the movable rotating shaft 30 to pull out the corresponding type of clamping column 32 from the oil drain pipe 5, so that the oil storage bucket 6 is disconnected from the oil drain pipe 5. The worker can remove the oil storage bucket 6, then clean the oil in the oil storage bucket 6, and then fix the cleaned oil storage bucket 6 on the oil drain pipe 5 through the movable rotating block 31 and the corresponding type of clamping column 32.

[0049] Finally, it should be pointed out that: first of all, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection. "Up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may change;

[0050] Secondly: the embodiment of the present application discloses only the structure related to the embodiment of the present application, other structures can refer to the general design, and in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0051] Finally: the above only for the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plugging device for oil leakage point of subsea oil-filled cable intermediate joint, comprising an oil-filled cable (1), a cable intermediate joint (2) and a sealing washer (3), characterized in that: The cable intermediate joint (2) is sleeved on the outer wall of the oil-filled cable (1), the sealing washer (3) is fixedly connected at one end of the cable intermediate joint (2), the outer wall of the oil-filled cable (1) is fixedly connected with the sealing shell (4), the bottom of the sealing shell (4) is connected with the oil discharge pipe (5), the bottom of the oil discharge pipe (5) is connected with the oil storage bucket (6), the inner wall of the oil discharge pipe (5) is fixedly connected with the support (7), the inner wall of the support (7) is connected with the transmission rotating column (8) through a bearing, and the outer wall of the transmission rotating column (8) is fixedly connected with the rotating fan blade (9). The rotating fan blade (9) is arranged in an inclined manner, the top of the transmission rotating column (8) is fixedly connected with the rotating plate (10), the top of the rotating plate (10) is fixedly connected with the movable push column (11), the transmission rotating column (8) drives the rotating plate (10) to rotate, the rotating plate (10) drives the movable push column (11) to move, the outer portion of the movable push column (11) is provided with the movable part (12), the two sides of the movable part (12) are fixedly connected with the movable push rod (13), the other end of the movable push rod (13) is fixedly connected with the movable support (14), the bottom of the movable support (14) is fixedly connected with the movable extrusion ring (15), the movable extrusion ring (15) is slidably connected to the outer wall of the oil-filled cable (1), one side of the movable extrusion ring (15) is fixedly connected with the movable extrusion block (16) which extrudes the sealing washer (3) after moving, and the movable extrusion block (16) is arranged on one side of the sealing washer (3); the inner wall of the sealing shell (4) is fixedly connected with the limiting support (33), and the movable push rod (13) is slidably connected to the inner wall of the limiting support (33).

2. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 1, characterized in that: The inner wall of the oil storage bucket (6) is fixedly connected with the supporting seat (17), and the bottom of the supporting seat (17) is fixedly connected with the warning buzzer (18).

3. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 2, characterized in that: The inner wall of the oil storage bucket (6) is fixedly connected with the supporting rotating shaft (19), the outer wall of the supporting rotating shaft (19) is hingedly connected with the movable rotating plate (20), one side of the movable rotating plate (20) is fixedly connected with the corresponding type of impact block (21) which impacts the warning buzzer (18) after moving, and the corresponding type of impact block (21) is arranged on one side of the warning buzzer (18).

4. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 3, characterized in that: The bottom of the transmission rotating column (8) is fixedly connected with the movable extrusion block (22) which extrudes the movable rotating plate (20) after rotating, and the movable extrusion block (22) is arranged on one side of the movable rotating plate (20).

5. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 4, characterized in that: One side of the movable rotating plate (20) is fixedly connected with the supporting spring (23), one end of the supporting spring (23) is fixedly connected with the supporting block (24), and the supporting block (24) is fixedly installed on the inner wall of the oil storage bucket (6).

6. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 5, characterized in that: The inner wall of the oil storage bucket (6) is fixedly connected with the alarm device (25), and the bottom of the alarm device (25) is fixedly connected with the alarm switch (26).

7. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 6, characterized in that: The inside of the oil storage bucket (6) is provided with a movable floating block (27), the top of the movable floating block (27) is fixedly connected with a corresponding extrusion block (28) which can extrude the alarm switch (26) after moving, and the corresponding extrusion block (28) is arranged at the bottom of the alarm switch (26).

8. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 7, characterized in that: The inner wall of the oil storage bucket (6) is fixedly connected with a limiting clamping plate (29), and the movable floating block (27) is slidingly connected to the outer wall of the limiting clamping plate (29).

9. The plugging device for oil permeation point of subsea oil-filled cable intermediate joint according to claim 8, characterized in that: The top of the oil storage bucket (6) is hingedly connected with a movable rotating shaft (30), the outer wall of the movable rotating shaft (30) is fixedly connected with a movable rotating block (31), one side of the movable rotating block (31) is fixedly connected with a corresponding clamping column (32) which can be inserted into the inside of the oil discharge pipe (5) after rotating, and the corresponding clamping column (32) is inserted into one side of the oil discharge pipe (5).

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