Submarine cable anti-falling monitoring device

Abstract

The utility model discloses a submarine cable anti-falling monitoring device, and specifically relates to the submarine cable monitoring equipment technology field, the submarine cable anti-falling monitoring device comprises a plastic cover body, a powerful magnet and a nylon rope, the inner cavity of the lower end surface of the plastic cover body is provided with a limiting groove, the center of the inner cavity of the limiting groove is provided with a thread fixing column, and the powerful magnet is installed in the inner cavity of the limiting groove. A nylon rope is arranged on the right side of the mounting lug, a lantern ring is arranged at the end, away from the mounting lug, of the nylon rope, and a winding rope is arranged in an inner cavity of the lantern ring. According to the utility model, the winding rope is connected with the incoming line submarine cable of the fan for monitoring, and when the submarine cable slides down from the incoming line or outgoing line position of the tower drum fan, the powerful magnet is pulled out of a limited position, so that an operator on duty can conveniently and remotely inspect the position of the powerful magnet through video monitoring to find the position in time; the operator on duty notifies the maintainer to take measures immediately, so that accidents are avoided, and equipment accidents caused by loosening of the submarine cable are avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of submarine cable monitoring equipment, and more specifically, to a submarine cable anti-fall monitoring device. Background Technology

[0002] Offshore wind farms consist of numerous wind turbine units. These turbines convert wind energy into electrical energy, which then needs to be transmitted to the onshore power grid via appropriate transmission methods to achieve efficient power utilization. In the power transmission system of offshore wind farms, wind turbines typically use 35-66 kV high-voltage cables for power transmission.

[0003] In the existing technology, wind turbines in offshore wind farms use 35-66 kV high-voltage cables for power transmission. Submarine cables connect the incoming and outgoing parts of the wind turbines. Due to various reasons (such as wind turbine vibration, seawater erosion, and ship compression during high and low tides), the submarine cables are prone to loosening and slipping. Loosening and slipping of the submarine cables can cause mechanical damage, which may even lead to equipment failure or safety accidents in severe cases.

[0004] Therefore, a submarine cable anti-fall monitoring device is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a submarine cable anti-fall monitoring device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a submarine cable anti-fall monitoring device, comprising a plastic cover, a powerful magnet, and a nylon rope. A limiting groove is formed in the inner cavity of the lower end face of the plastic cover. A threaded fixing post is provided at the center of the inner cavity of the limiting groove. The powerful magnet is installed in the inner cavity of the limiting groove. An installation groove is formed in the inner cavity of the powerful magnet. A retaining groove is formed at the edge of the lower end face of the installation groove. An internally threaded tube is installed in the inner cavity of the installation groove. A limiting ring is provided at the bottom end face of the internally threaded tube.

[0007] The front end of the plastic cover is provided with a mounting ear, the upper end of the plastic cover is provided with a handle, a nylon rope is provided on the right side of the mounting ear, a collar is provided at the end of the nylon rope away from the mounting ear, and a winding rope is provided in the inner cavity of the collar.

[0008] Preferably, the powerful magnet abuts against the inner surface of the limiting groove to achieve limiting, and the powerful magnet is in the shape of a ring.

[0009] Preferably, the threaded fixing post and the internally threaded tube are engaged, and the internally threaded tube is fixed after being inserted into the inner cavity of the mounting groove and engaging with the threaded fixing post.

[0010] Preferably, when the internally threaded tube is inserted into the inner cavity of the mounting groove, the retaining groove abuts against the inner surface of the limiting ring to achieve limiting.

[0011] Preferably, the end of the nylon rope away from the collar is connected to the mounting ear, and the collar is sleeved on the outer surface of the wound rope.

[0012] Preferably, the nylon rope is made of multiple strands of nylon fiber twisted together, and the material of the winding rope is aramid fiber.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Compared with existing technologies, this submarine cable anti-fall monitoring device monitors the incoming submarine cable of the wind turbine by connecting the winding rope. When the submarine cable slips from the wind turbine's inlet or outlet position, the strong magnet is pulled out of the limited position. This allows on-duty personnel to remotely inspect the position of the strong magnet using video monitoring, which can be detected in time. On-duty personnel can then notify maintenance personnel to take immediate measures to prevent accidents, thereby avoiding equipment accidents caused by loose submarine cables. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional cross-sectional structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the limiting groove of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the powerful magnet of this utility model.

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the plastic cover of this utility model.

[0019] The attached diagram is labeled as follows: 1. Plastic cover; 2. Limiting groove; 3. Threaded fixing post; 4. Strong magnet; 5. Mounting groove; 51. Slot; 6. Internal threaded tube; 61. Limiting ring; 7. Mounting ear; 8. Handle; 9. Nylon rope; 10. Loop; 11. Winding rope. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] As attached Figures 1 to 4The shown submarine cable anti-fall monitoring device includes a plastic cover 1, a strong magnet 4 and a nylon rope 9. A limiting groove 2 is opened in the inner cavity of the lower end face of the plastic cover 1. A threaded fixing post 3 is set at the center of the inner cavity of the limiting groove 2. The strong magnet 4 is installed in the inner cavity of the limiting groove 2. An installation groove 5 is opened in the inner cavity of the strong magnet 4. A locking groove 51 is opened at the edge of the lower end face of the installation groove 5. An internal threaded tube 6 is installed in the inner cavity of the installation groove 5. A limiting ring 61 is set at the bottom end face of the internal threaded tube 6.

[0022] The front end of the plastic cover 1 is provided with an mounting ear 7, the upper end of the plastic cover 1 is provided with a handle 8, the right side of the mounting ear 7 is provided with a nylon rope 9, the end of the nylon rope 9 away from the mounting ear 7 is provided with a collar 10, and the inner cavity of the collar 10 is provided with a winding rope 11.

[0023] Among them: the plastic cover 1 serves as the external structure of the device, used to install the powerful magnet 4; the limiting groove 2 is used to limit the position of the powerful magnet 4, ensuring that the powerful magnet 4 is in an accurate position in the device so that it can perform its monitoring function normally and ensure that the powerful magnet 4 can be accurately pulled when the submarine cable slides down; the threaded fixing post 3 can further fix the position of the powerful magnet 4, making the structure of the entire device more stable and preventing the components from loosening and affecting the monitoring effect. The powerful magnet 4 is the core component of the monitoring. When the submarine cable slides down and drives the nylon rope 9 and the winding rope 11 to move, the powerful magnet 4 is pulled out of the limiting groove 2. Its position change can intuitively reflect whether the submarine cable has slid down, which is convenient for the duty personnel to conduct remote inspection through video monitoring. The maintenance personnel can move it by holding the plastic cover 1 with the handle 8.

[0024] The mounting groove 5 provides installation space for components such as the internally threaded tube 6, allowing these components to be rationally integrated inside the powerful magnet 4, ensuring the compactness and integrity of the device. The limiting ring 61 restricts the axial movement of the internally threaded tube 6 within the mounting groove 5, preventing the internally threaded tube 6 from coming out of the mounting groove 5, ensuring the connection stability of the internally threaded tube 6 with other components, and thus ensuring the reliability of the entire device. The mounting ear 7 serves as the connection point between the nylon rope 9 and the plastic cover 1, allowing the nylon rope 9 to be stably connected to the plastic cover 1, ensuring that the tension generated when the submarine cable slides down can be effectively transmitted to the powerful magnet 4. The collar 10 is used to connect the nylon rope 9 and the winding rope 11. The winding rope 11 is directly connected to the submarine cable. When the submarine cable slides down, the winding rope 11 will move with the movement of the submarine cable at the inlet, thereby driving the nylon rope 9 and the powerful magnet 4, realizing the monitoring of the submarine cable sliding down. Example

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0026] In a preferred embodiment, the strong magnet 4 abuts against the inner surface of the limiting groove 2 to achieve limiting, and the strong magnet 4 is in the shape of a ring; furthermore, the ring-shaped strong magnet 4 can generate a relatively uniform ring magnetic field, and the magnetic field strength and direction in the surrounding space are relatively stable and symmetrical. By abutting tightly against the inner surface of the limiting groove 2, the strong magnet 4 can be precisely limited to a specific position.

[0027] In a preferred embodiment, the threaded fixing post 3 and the internally threaded tube 6 are engaged. After the internally threaded tube 6 is inserted into the inner cavity of the mounting groove 5, it engages with the threaded fixing post 3 to achieve fixation. Furthermore, the engagement connection provides a strong connection force through the mutual engagement of the threads, making the connection between the threaded fixing post 3 and the internally threaded tube 6 tight and stable. In the submarine cable anti-fall monitoring device, it can ensure that the connection between the strong magnet 4 and the plastic cover 1 will not easily loosen or fall off under the action of external forces such as tension and vibration generated by the submarine cable. Moreover, the internally threaded tube 6 can be removed from the mounting groove 5 simply by rotating it in the opposite direction to separate it from the threaded fixing post 3, which facilitates the inspection, repair or replacement of components such as the strong magnet 4 and the internally threaded tube 6.

[0028] In a preferred embodiment, when the internally threaded tube 6 is inserted into the inner cavity of the mounting groove 5, the retaining groove 51 abuts against the inner surface of the limiting ring 61 to achieve limiting. Furthermore, the cooperation between the limiting ring 61 and the retaining groove 51 can restrict the movement of the internally threaded tube 6. During the installation process, it is only necessary to insert the internally threaded tube 6 into the mounting groove 5 and align and abut against the retaining ring 61 to achieve the initial limiting of the internally threaded tube 6. After the internally threaded tube 6 is limited by the retaining groove 51 and the limiting ring 61, the powerful magnet 4 can maintain a fixed posture and position during operation.

[0029] In a preferred embodiment, the end of the nylon rope 9 furthest from the collar 10 is connected to the mounting ear 7, and the collar 10 is fitted onto the outer surface of the winding rope 11. Furthermore, the mounting ear 7 provides a stable connection point for the nylon rope 9, allowing it to reliably connect to the plastic cover 1. The collar 10, fitted onto the winding rope 11, allows the winding rope 11 to move relative to the collar 10 within a certain range, facilitating adjustments to the relative position of the winding rope 11 with other components based on the actual installation conditions. This better adapts to different submarine cable installation environments and monitoring needs. Through the connection of the nylon rope 9, collar 10, and winding rope 11, when the submarine cable slips from the tower fan inlet or outlet position, the winding rope 11 moves accordingly. Through the transmission of the collar 10 and nylon rope 9, the powerful magnet 4 is pulled out of its designated position, thereby triggering a monitoring signal. This allows on-duty personnel to promptly detect abnormalities in the submarine cable. This connection method ensures the sensitivity and accuracy of the monitoring device to changes in the state of the submarine cable, effectively realizing the function of submarine cable anti-fall monitoring.

[0030] As a preferred embodiment, the nylon rope 9 is made of multiple strands of nylon fiber twisted together, and the winding rope 11 is made of aramid fiber. Furthermore, the nylon rope 9 has high strength and abrasion resistance, can withstand greater tensile force, and is less prone to breakage. It can better adapt to the large displacement and tension that may occur in the submarine cable, ensuring that displacement information can be stably transmitted when the submarine cable slides down, so that the powerful magnet 4 can accurately display the status of the submarine cable. The winding rope 11 made of aramid fiber has excellent abrasion resistance, can resist friction with other object surfaces during use, and is not prone to wear, fuzzing, etc., thereby ensuring the service life and performance stability of the winding rope 11.

[0031] The working process of this utility model is as follows: First, the strong magnet 4 is placed in the limiting groove 2 on the lower end face of the plastic cover 1, so that it is tightly abutted against the inner surface of the limiting groove 2 to achieve limiting. The internal thread tube 6 is inserted into the mounting groove 5 in the inner cavity of the strong magnet 4, so that the slot 51 is aligned with the limiting ring 61 and abuts, thus achieving the initial limiting of the internal thread tube 6. Then, the internal thread tube 6 is rotated so that it engages with the threaded fixing post 3, thus completing the fixed installation between the strong magnet 4 and the plastic cover 1. Then, one end of the nylon rope 9 is connected to the mounting ear 7, and the other end is sleeved on the winding rope 11 through the collar 10. Finally, the winding rope 11 is wound and connected to the submarine cable, and further wrapped and pasted with insulating tape to complete the installation of the entire submarine cable anti-fall monitoring device. Maintenance personnel can move the plastic cover 1 by holding the handle 8 to inspect, repair or replace parts of the device. For example, by rotating the internal thread tube 6 in the opposite direction, it can be taken out from the mounting groove 5 to maintain the strong magnet 4 and the internal thread tube 6 and other components.

[0032] When the submarine cable is in normal operation, the winding rope 11 remains stationary, and the nylon rope 9, the collar 10, and the powerful magnet 4 are all in their initial positions. The powerful magnet 4 is in the limiting groove 2, and the magnetic field is stable, with no monitoring signal triggering. When the submarine cable slips from the tower fan inlet or outlet position, the submarine cable drives the winding rope 11 to move. The winding rope 11 pulls the nylon rope 9 through the collar 10, and the nylon rope 9 then pulls the powerful magnet 4 inside the plastic cover 1, causing the powerful magnet 4 to be pulled out of its limited position. Its position changes, allowing the on-duty personnel to remotely observe the position change of the powerful magnet 4 through video monitoring, thereby determining whether the submarine cable has slipped. The above is the working principle of this submarine cable anti-fall monitoring device.

Claims

1. A submarine cable anti-falling monitoring device, comprising a plastic cover (1), a strong magnet (4) and a nylon rope (9), characterized in that: The inner cavity of the lower end face of the plastic cover body (1) is provided with a limiting groove (2), the center of the inner cavity of the limiting groove (2) is provided with a threaded fixing column (3), the strong magnet (4) is installed in the inner cavity of the limiting groove (2), the inner cavity of the strong magnet (4) is provided with an installation groove (5), the edge of the lower end face of the installation groove (5) is provided with a clamping groove (51), the inner cavity of the installation groove (5) is installed with an internally threaded pipe (6), the bottom end face of the internally threaded pipe (6) is provided with a limiting ring (61). The front end face of the plastic cover body (1) is provided with a mounting lug (7), the upper end face of the plastic cover body (1) is provided with a handle (8), the right side of the mounting lug (7) is provided with a nylon rope (9), one end of the nylon rope (9) away from the mounting lug (7) is provided with a thimble (10), the inner cavity of the thimble (10) is provided with a winding rope (11).

2. A subsea cable fall arrest monitoring apparatus according to claim 1, characterised in that: The strong magnet (4) abuts against the inner surface of the limiting groove (2) to realize limiting, the shape of the strong magnet (4) is circular ring.

3. A subsea cable fall arrest monitoring apparatus according to claim 1, characterised in that: The threaded fixing column (3) and the internally threaded pipe (6) are engagedly connected, after the internally threaded pipe (6) is inserted into the inner cavity of the installation groove (5) and engaged with the threaded fixing column (3), the internally threaded pipe (6) is fixed.

4. A subsea cable fall arrest monitoring apparatus according to claim 3, characterised in that: Therefore, when the internally threaded pipe (6) is inserted into the inner cavity of the installation groove (5), the clamping groove (51) abuts against the inner surface of the limiting ring (61) to realize limiting.

5. A fall arrest monitoring apparatus for a subsea cable as claimed in claim 1, characterised in that: One end of the nylon rope (9) away from the thimble (10) is connected with the mounting lug (7), the thimble (10) is sleeved on the outer surface of the winding rope (11).

6. A subsea cable fall arrest monitoring apparatus according to claim 5, characterised in that: The rope body of the nylon rope (9) is twisted by a plurality of nylon fiber filaments, the material of the rope body of the winding rope (11) is aramid fiber.

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