Marine wind power mooring anchor chain back connection quick joint

Abstract

The application discloses a mooring chain back connection quick joint for offshore wind power, which comprises a connecting block for fixed connection with a mooring chain, a rotating column rotatably installed in the connecting block, the rotating column being rotatable around the axis of the connecting block, and a connecting column fixed on the rotating column, and a quick connection mechanism fixedly connected with the connecting column. The mooring chain is first fixedly connected with the mooring chain back connection quick joint for offshore wind power, and then the mooring chains are connected with each other through the mooring chain back connection quick joint for offshore wind power. When the two U-shaped hooks are in occlusion, the spring is contracted, the guide rod moves to the U-shaped hook, the limiting block moves in the second limiting groove and abuts against the U-shaped hook, thereby avoiding the use of threaded connection, solving the problem that the threaded teeth of the offshore threaded connection are prone to rust, and causing the threaded connection to fail to realize quick connection.

Description

TECHNICAL FIELD

[0001] The application relates to a quick joint for connecting an anchor chain of a mooring system of an offshore wind power device. BACKGROUND

[0002] An offshore wind farm usually needs to fix a wind turbine on the seabed through a mooring system to ensure the stability of the wind turbine under the action of wind, and the anchor chain in the mooring system is an important component for connecting the wind turbine and the seabed, and the safety and reliability of the anchor chain are crucial to the operation of the entire wind farm.

[0003] The connection between the existing anchor chain and the wind turbine device is achieved through anchor chain accessories such as shackles, but the shackle (see Chinese patent publication No. CN212407278U) is connected through threads, and rust is easily generated at the thread teeth of the threads on the sea, resulting in failure of the rotating threads of the shackle to realize rapid butt joint. SUMMARY

[0004] To solve the above technical problems, the application provides a quick joint for connecting an anchor chain of a mooring system of an offshore wind power device.

[0005] The application is achieved through the following technical solutions.

[0006] The application provides a quick joint for connecting an anchor chain of a mooring system of an offshore wind power device, which comprises:

[0007] A connecting block for fixed connection with the anchor chain;

[0008] A rotating column is rotatably installed in the connecting block, the rotating column can rotate around the axis of the connecting block, and a connecting column is fixed on the rotating column;

[0009] The connecting column is fixedly connected with a quick connecting mechanism.

[0010] The connecting block is slidably provided with a sleeve, the sleeve can slide along the axis of the connecting block, and a magnet block generating magnetic attraction force is fixed on the sleeve.

[0011] A fastening mechanism is installed on the quick connecting mechanism, and the fastening mechanism locks and limits the quick connecting mechanism.

[0012] The quick connecting mechanism comprises a housing fixed with the connecting column;

[0013] A U-shaped hook handle is rotatably installed at the end of the housing through a rotating shaft, a protrusion is fixed on the inner surface of the U-shaped hook handle, the U-shaped hook handles of the two joints can be butt-jointed and engaged, and the protrusions of the two U-shaped hook handles are in contact.

[0014] The fastening mechanism is installed on the housing, and the fastening mechanism locks and limits the end of the U-shaped hook handle with the protrusion.

[0015] The fastening mechanism comprises a limiting block corresponding to the clamping groove on the U-shaped hook hand, and the limiting block is symmetrically arranged above and below; the limiting block is installed and accommodated in the second limiting groove of the shell;

[0016] The guide rod is fixedly connected with the limiting block, the guide rod is installed in the first limiting groove of the shell, the limiting ring is screwed on the guide rod, the spring is sleeved on the guide rod below the limiting ring, the spring is fixed at both ends corresponding to the second limiting groove and the limiting block, and the spring retracts the limiting block into the second limiting groove in a normal state, so that the top of the guide rod protrudes out of the first limiting groove; the sleeve slides axially along the connecting block to retract the top of the guide rod, the magnet block is attracted to the shell, the limiting block is located in the clamping groove on the U-shaped hook hand, and the limiting block locks the U-shaped hook hand.

[0017] The anchor chain is fixedly connected with the offshore wind power mooring anchor chain return quick connector in advance, and then the anchor chains are connected through the offshore wind power mooring anchor chain return quick connector, when the two U-shaped hook hands are in occlusion, the spring is retracted, the guide rod moves to the U-shaped hook hand, the limiting block moves in the second limiting groove and abuts against the U-shaped hook hand, thereby avoiding the use of threaded connection, solving the problem that the threaded teeth of the offshore threaded connection are prone to rust, resulting in failure of the threaded connection of the shackle and inability to realize rapid connection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic diagram of the present application during installation;

[0019] Figure 2 is a structure schematic diagram of the connecting block and the quick connection mechanism of the present application;

[0020] Figure 3 is a half-section structure schematic diagram of the inside of the connecting block of the present application;

[0021] Figure 4 is a structure schematic diagram of the quick connection mechanism during installation of the present application;

[0022] Figure 5 is a half-section structure schematic diagram of the fastening mechanism in the connecting block of the present application;

[0023] In the figure: 1-connecting block;

[0024] 2-quick connection mechanism; 201-shell; 202-first limiting groove; 203-second limiting groove; 204-rotation shaft; 205-U-shaped hook hand; 206-protruding block; 207-clamping groove;

[0025] 3-fastening mechanism; 301-guide rod; 302-limiting block; 303-spring; 304-limiting ring;

[0026] 4-magnet block; 5-connecting column; 6-rotation column; 7-sleeve. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0028] like Figures 1 to 5 As shown.

[0029] This application discloses a quick-connect coupling for reconnecting mooring chains in offshore wind power projects, comprising:

[0030] The connecting block 1 is a cylindrical shape and is used to fix it to the mooring anchor chain. A rotating column 6 is rotatably installed inside the connecting block 1. The rotating column 6 can rotate around the axis of the connecting block 1, and a connecting column 5 is fixed on the rotating column 6.

[0031] The connecting block 1 has a slidable sleeve 7, which can slide along the axial direction of the connecting block 1. A magnet block 4 that generates magnetic attraction is fixed on the sleeve 7.

[0032] The connecting column 5 is fixedly connected to the quick-connect mechanism 2, and the quick-connect mechanism 2 is equipped with a fastening mechanism 3, which locks and limits the quick-connect mechanism 2.

[0033] In use, two quick-connect couplings for offshore wind power mooring anchor chains are used. One quick-connect coupling is fixedly connected to the mooring anchor chain on the sea surface pillar, and the other quick-connect coupling is fixedly connected to the mooring anchor chain of the offshore wind power floating foundation. Then, the quick-connect mechanism 2 of the couplings quickly connects with each other, so that the offshore wind power floating foundation is moored and fixed on the sea surface pillar.

[0034] The quick-connect mechanism 2 includes a housing 201 fixed to the connecting post 5, and the housing 201 is composed of a cylinder and a semi-cylinder;

[0035] A U-shaped hook 205 is rotatably mounted on the end of the housing 201 via a rotating shaft 204. A protrusion 206 is fixed on the inner surface of the U-shaped hook 205. The two U-shaped hooks 205 can be engaged and interlocked. The protrusions 206 of the two U-shaped hooks 205 are in contact, similar to the engagement principle of automatic hooks on trains.

[0036] The fastening mechanism 3 is installed on the housing 201, and the fastening mechanism 3 locks and limits the end of the U-shaped hook 205 with the protrusion 206; the fastening mechanism 3 includes a limiting block 302 that corresponds to the slot 207 on the U-shaped hook 205, and there are two limiting blocks 302 that are symmetrically arranged vertically; the limiting blocks 302 are installed and accommodated in the second limiting groove 203 of the housing 201;

[0037] The guide rod 301 is fixedly connected to the limiting block 302. The guide rod 301 is installed in the first limiting groove 202 of the housing 201. The limiting ring 304 is screwed onto the guide rod 301. A spring 303 is sleeved on the guide rod 301 below the limiting ring 304. The two ends of the spring 303 are fixed to the second limiting groove 203 and the limiting block 302 respectively. In the normal state, the spring 303 retracts the limiting block 302 into the second limiting groove 203. At this time, the top of the guide rod 301 extends out of the first limiting groove 202. The sleeve 7 slides along the axis of the connecting block 1 and presses the top of the guide rod 301 inward. The magnet 4 is attracted to the housing 201. The limiting block 302 is in the slot 207 on the U-shaped hook 205. The limiting block 302 locks and limits the U-shaped hook 205.

[0038] This application discloses a connection method for a quick-connect coupling for offshore wind power mooring anchor chains, comprising:

[0039] Using the two quick-connect couplings for offshore wind power mooring anchor chains, the connecting block 1 of one quick-connect coupling is fixedly connected to the mooring anchor chain on the sea surface pillar, and the connecting block 1 of the other quick-connect coupling is fixedly connected to the mooring anchor chain of the offshore wind power floating foundation. Then, the U-shaped hooks 205 of the two quick-connect couplings can be mated and engaged, the protrusions 206 of the two U-shaped hooks 205 contact each other, and the fastening mechanism 3 locks and limits the ends of the U-shaped hooks 205, thus realizing the quick-connect coupling connection process.

[0040] The quick-connector connection process is as follows: First, adjust the angle of the U-shaped hook 205 inside the housing 201, then offset the semi-cylinders in the two housings 201, and then align them. The two U-shaped hooks 205 respectively contact the two protrusions 206 on the U-shaped hook 205, causing the U-shaped hooks 205 to rotate around the rotating shaft 204, so that the two U-shaped hooks 205 are in an interlocking state. Then, pull the magnet block 4, causing the sleeve 7 to extend from the connecting block 1 and engage the guide rod 301 exposed on the outer surface of the housing 201. The compression force causes the spring 303 to contract, and the guide rod 301 moves towards the U-shaped hook 205. The limiting block 302 moves within the second limiting groove 203 and abuts against the U-shaped hook 205. The outer surface of the limiting block 302 fits against the slot 207, completing the fastening. During the movement of the two magnet blocks 4, they come into contact with each other and, under the action of magnetic force, form a closed protection for the quick-connect mechanism 2 on the two joints, completing the quick connection. The joint structure is simple, easy to manufacture and operate, and suitable for various types of offshore wind power mooring anchor chains.

[0041] The anchor chain is first fixedly connected to the quick-connect coupling of the offshore wind power mooring anchor chain, and then the anchor chains are docked together through the quick-connect coupling. During docking, the two U-shaped hooks 205 are in an interlocking state, causing the spring 303 to contract. The guide rod 301 moves towards the U-shaped hook 205, and the limiting block 302 moves in the second limiting groove 203 to abut against the U-shaped hook 205. This avoids the use of threaded connection and solves the problem that the threads of offshore threads are prone to rust, which leads to the failure of the shackle rotation thread and prevents quick docking.

Claims

1. A quick-connect coupling for reconnecting mooring chains in offshore wind power projects, characterized in that, include: Connecting block (1) for fixed connection with mooring anchor chain; A rotating column (6) is rotatably installed inside the connecting block (1). The rotating column (6) can rotate around the axis of the connecting block (1). A connecting column (5) is fixed on the rotating column (6). The connecting column (5) is fixedly connected to a quick-connect mechanism (2); The connecting block (1) has a slidable sleeve (7), which can slide along the axial direction of the connecting block (1). A magnet block (4) that generates magnetic attraction is fixed on the sleeve (7). The quick-connect mechanism (2) includes a housing (201) fixed to the connecting post (5); A U-shaped hook (205) is rotatably mounted on the end of the housing (201) via a rotating shaft (204). A protrusion (206) is fixed on the inner surface of the U-shaped hook (205). The two U-shaped hooks (205) can be mated and engaged, and the U-shaped hook (205) contacts the protrusion (206) of the other U-shaped hook (205). The quick-connect mechanism (2) is equipped with a fastening mechanism (3), which locks and limits the quick-connect mechanism (2). The fastening mechanism (3) includes a limiting block (302) that corresponds to the slot (207) on the U-shaped hook (205), and there are two limiting blocks (302) that are symmetrically arranged vertically; the limiting blocks (302) are installed and accommodated in the second limiting groove (203) of the housing (201); A guide rod (301) is fixedly connected to the limiting block (302). The guide rod (301) is installed in the first limiting groove (202) of the housing (201). A limiting ring (304) is screwed onto the guide rod (301). A spring (303) is sleeved on the guide rod (301) below the limiting ring (304). The two ends of the spring (303) are fixed to the second limiting groove (203) and the limiting block (302) respectively. Under normal conditions, the spring (303) will... The limiting block (302) retracts into the second limiting groove (203), at which time the top of the guide rod (301) extends out of the first limiting groove (202); the sleeve (7) slides along the axial direction of the connecting block (1) and presses the top of the guide rod (301) inward, the magnet (4) is attracted to the housing (201), the limiting block (302) is in the slot (207) on the U-shaped hook (205), and the limiting block (302) locks and limits the U-shaped hook (205).

2. The quick-connect coupling for reconnecting offshore wind power mooring chains as described in claim 1, characterized in that: The fastening mechanism (3) is installed on the housing (201) and the fastening mechanism (3) locks and limits the end of the U-shaped hook (205) with the protrusion (206).

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