A quick disconnect device for a streamer

Abstract

The application discloses a kind of quick disconnecting device of tow rope, comprising: the connecting column of fixed state;The middle part of the connecting column is fixed with fixed frame, fixed frame middle part is slidably connected with connecting frame, and the middle part of connecting frame is rotatably connected with force bar, the middle part of fixed frame is provided with the insertion hole for force bar insertion, and force bar middle part is sleeved with tow rope.The downward force is applied to connecting frame to make it descend, force bar is separated from insertion hole, force bar rotates to make tow rope quickly disconnect, and when emergency occurs in the process of towing, the connection state of tow rope and force bar is quickly released, the problem that the prior art is not convenient for quickly disconnecting tow rope and affects the reliability of tow rope disconnection under emergency is solved.

Description

Technical Field

[0001] This invention relates to a quick disconnection device for towed cables, belonging to the field of offshore wind construction technology. Background Technology

[0002] Floating offshore wind turbine towing refers to the operation of using tugboats to tow floating offshore wind turbines over long distances at sea, with the main purpose of transporting offshore wind turbine units to designated sea areas.

[0003] The towing cable used in the towing of offshore wind turbines is crucial in the towing process. It plays a vital role in connecting the tugboat and the towed object. The towing cable needs to have good tensile strength, abrasion resistance, and corrosion resistance. These properties ensure that the towing cable does not break or wear during towing and can withstand various harsh marine environments. However, due to the complex and ever-changing conditions at sea, in emergency situations, it is necessary to disconnect the towing cable to release the connection between the tugboat and the towed object. Existing towing cable connections involve rotational release or cable snagging (see Chinese Patent Publication No. CN212473816U), which is not convenient for rapid disconnection and affects the reliability of towing cable disconnection in emergency situations. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a device for quick disconnection of tow cables.

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

[0006] The present invention provides a tow cable quick disconnection device, comprising:

[0007] A rapid disconnection device for tow cables that enables quick disconnection between the tow cable and the support rod.

[0008] Including connecting columns that are in a fixed state;

[0009] A fixing frame is fixed in the middle of the connecting column, a connecting frame is slidably connected in the middle of the fixing frame, a load-bearing rod is rotatably connected in the middle of the connecting frame, an insertion hole for the load-bearing rod to be inserted in the middle of the fixing frame, and a drag cable is sleeved in the middle of the load-bearing rod.

[0010] A transmission lever is rotatably connected to the middle of the fixed frame, and a pair of fixed support rods are fixed to the bottom of the fixed frame. A rotatable pulley is connected to the bottom of the fixed support rod, and a connecting rope is sleeved on the pulley. The connecting rope rotates by relying on the pulley. One end of the connecting rope is fixed to the bottom of the connecting frame, and the other end of the connecting rope is fixed to the bottom of the transmission lever near the connecting frame. The transmission lever rotates on the fixed frame, pulling the connecting frame downward with the connecting rope.

[0011] The fixed frame is connected to a sliding slider in the middle. A wedge is fixed at the bottom of the slider. A top rod is fixed at the top of the guide lever near the connecting frame. The top rod is locked in contact with the wedge. The slider is locked between the connecting frame and the fixed frame. Under normal conditions, the slider restricts the connecting frame from sliding downward on the fixed frame.

[0012] The end of the fixed frame away from the connecting frame is provided with a through hole and a sliding rod is installed thereon. A lifting rod is fixed to the top of the sliding rod. The sliding rod is fitted with a spring and abuts against the fixed frame. The lifting rod contacts the bottom surface of the transmission lever.

[0013] A fixed plate is fixed to the end of the transmission lever away from the connecting frame; a fixed cylinder is fixed to the side wall of the connecting column above the fixed plate, and a bearing plate is rotatably connected inside the fixed cylinder. A through groove is opened on the side wall of the fixed cylinder, and the end foot of the bearing plate extends into the through groove. The bearing plate rotates downward on the side away from the through groove; a spring rod is fixed to the side wall of the fixed cylinder, and a limit rod is fixed to the bottom end of the spring rod. The limit rod abuts against the bottom foot of the bearing plate. There is a weight inside the fixed cylinder, and the weight is on the bearing plate.

[0014] The top of the weight is fixed with a pull rope, which is detachably and fixedly connected to the top of the fixed cylinder.

[0015] The beneficial effects of this invention are as follows: applying a downward force to the connecting frame causes it to descend, the support rod disengages from the insertion hole, and the rotation of the support rod causes the tow cable to disconnect quickly. In case of an emergency during towing, the connection between the tow cable and the support rod can be quickly released, solving the problem that the prior art is not convenient for quickly disconnecting the tow cable, which affects the reliability of the tow cable disconnection in emergency situations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram illustrating the structure of a spring according to the present invention;

[0018] Figure 3 This is a schematic diagram illustrating the structure of the slider in this invention;

[0019] Figure 4 This is a schematic diagram illustrating the structure of the elastic rod and the fixed cylinder of the present invention;

[0020] Figure 5 This is a schematic diagram illustrating the structure of the supporting plate and the weight according to the present invention;

[0021] In the diagram: 1-Connecting column; 12-Fixing frame; 13-Connecting frame; 14-Bearing rod; 15-Insertion hole; 16-Drag cable; 2-Transmission lever; 21-Fixing support rod; 22-Pulley; 23-Connecting rope; 3-Slider; 31-Inclined block; 32-Push rod; 4-Sliding rod; 41-Lifting rod; 42-Spring; 5-Fixing cylinder; 51-Bearing plate; 52-Through groove; 53-Elastic rod; 54-Limiting rod; 55-Weight; 6-Pull rope; 7-Fixing plate. Detailed Implementation

[0022] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0023] like Figures 1 to 5 As shown.

[0024] This application discloses a quick disconnection device for a tow cable, comprising:

[0025] The connecting column 1 is fixed on the tugboat or floating offshore wind power equipment. The connecting column 1 is in a fixed state when in use.

[0026] A fixing frame 12 is fixedly connected to the middle of the connecting column 1, a connecting frame 13 is slidably connected to the middle of the fixing frame 12, a load-bearing rod 14 is rotatably connected to the middle of the connecting frame 13, an insertion hole 15 for the load-bearing rod 14 to be inserted into the middle of the fixing frame 12, and a drag cable 16 is sleeved on the middle of the load-bearing rod 14.

[0027] During operation, the tow cable 16 is fitted onto the support rod 14, and then the connecting frame 13 slides upwards, allowing the support rod 14 to insert into the socket 15 of the fixing frame 12. When towing a floating offshore wind turbine, the tow cable 16 is taut and pulls on the support rod 14 and the connecting frame 13, significantly increasing the friction between them and preventing the connecting frame 13 from easily slipping down and causing the support rod 14 to detach from the socket 15. In an emergency requiring rapid disconnection of the tow cable 16 to release the towing, the connecting frame 13 is struck and lowered, causing the support rod 14 to detach from the socket 15. The rotation of the support rod 14 then quickly disconnects the tow cable 16. This structure allows for rapid disconnection of the tow cable 16 in case of an emergency during towing, quickly separating the vessel from the offshore wind turbine to address the emergency. This solves the problem of existing technologies being inconvenient for rapid tow cable disconnection, affecting the reliability of tow cable disconnection in emergency situations.

[0028] A transmission lever 2 is rotatably connected to the middle of the fixed frame 12. A pair of fixed support rods 21 are fixedly connected to the bottom of the fixed frame 12. A rotatable pulley 22 is connected to the bottom end of the fixed support rod 21. A connecting rope 23 is sleeved on the pulley 22. The connecting rope 23 rotates by relying on the pulley 22. One end of the connecting rope 23 is fixedly connected to the bottom of the connecting frame 13, and the other end of the connecting rope 23 is fixedly connected to the bottom of the transmission lever 2 near the connecting frame 13. The transmission lever 2 rotates on the fixed frame 12, pulling the connecting frame 13 downward with the connecting rope 23.

[0029] During operation, when it is necessary to disconnect the tow cable 16, the end of the transmission lever 2 away from the connecting frame 13 is struck downwards. Under the action of the lever principle, the fixed frame 12 pulls the connecting frame 13 down through the connecting rope 23, thereby driving the load-bearing rod 14 on the connecting frame 13 down, so that the tow cable 16 is separated from the load-bearing rod 14. Since the transmission lever 2 is a lever structure, the connecting frame 13 can overcome greater friction to descend. Through the above structure, the disconnection operation of the tow cable 16 can be made easier, and the difficulty in disconnecting the tow cable 16 caused by the large frictional resistance between the connecting frame 13 and the fixed frame 12 can be reduced.

[0030] A slidable slider 3 is connected to the middle of the fixed frame 12. A wedge 31 is fixed to the bottom of the slider 3. A top rod 32 is fixed to the top of the guide lever 2 near the connecting frame 13. The top rod 32 is engaged with the wedge 31. The slider 3 is engaged between the connecting frame 13 and the fixed frame 12. Under normal conditions, the slider 3 restricts the connecting frame 13 from sliding downward on the fixed frame 12. When the guide lever 2 rotates, it causes the top rod 32 to press against the wedge 31. The slider 3 is forced to slide away from the fixed frame 12 and the connecting frame 13, releasing the sliding restriction on the connecting frame 13. The guide lever 2 continues to rotate, and the connecting rope 23 becomes taut, pulling the connecting frame 13 downward. With the above structure, the occurrence of the connecting frame 13 sliding down on its own can be reduced when it is not necessary to disconnect the tow cable 16, thereby reducing the possibility of the tow cable 16 accidentally breaking due to the sliding of the connecting frame 13.

[0031] The end of the fixed frame 12, away from the connecting frame 13, has a through hole for mounting a slidable sliding rod 4. A lifting rod 41 is fixed to the top of the sliding rod 4, and a spring 42 is fitted onto the sliding rod 4, which rests against the fixed frame 12. The lifting rod 41 contacts the bottom surface of the transmission lever 2. When the transmission lever 2 does not need to be rotated significantly to pull the connecting frame 13 down, the lifting rod 41 abuts against the transmission lever 2, thereby reducing the occurrence of repeated collisions between the lifting rod 32 and the inclined block 31 due to the ship's swaying, which would cause the inclined block 31 to move the slider 3. This would further reduce the occurrence of the slider 3 accidentally detaching from the fixed frame 12 and the connecting frame 13, and further reduce the occurrence of the tow cable 16 accidentally breaking off.

[0032] A fixing plate 7 is fixed to the end of the transmission lever 2 away from the connecting frame 13; a fixing cylinder 5 is fixed to the side wall of the connecting column 1 above the fixing plate 7, and a bearing plate 51 is rotatably connected inside the fixing cylinder 5. A through groove 52 is opened on the side wall of the fixing cylinder 5, and the end of the bearing plate 51 extends into the through groove 52. The bearing plate 51 rotates downward on the side away from the through groove 52. Figure 5 The middle is a clockwise dotted line; a spring rod 53 is fixed to the side wall of the fixed cylinder 5, and a limit rod 54 is fixed to the bottom end of the spring rod 53. The limit rod 54 abuts against the foot of the end of the bearing plate 51. There is a weight 55 inside the fixed cylinder 5, and the weight 55 is on the bearing plate 51.

[0033] The rotating bearing plate 51 is limited by the limiting rod 54, and the weight 55 is positioned above the bearing plate 51. When it is necessary to disconnect the tow cable 16 in an emergency, the limiting rod 54 can be pulled. Through the elastic deformation of the elastic rod 53, the limiting rod 54 is moved away from the side wall of the fixed cylinder 5 and the rotation restriction on the bearing plate 51 is released, causing the weight 55 to fall and hit the transmission lever 2. The transmission lever 2 is rotated under force, and the tow cable 16 is quickly disconnected. With the above structure, the tow cable 16 can be quickly disconnected in an emergency without the need for additional tools, reducing the time wasted in finding tools and improving efficiency in emergency situations.

[0034] The top of the weight 55 is fixed with a pull rope 6, which is detachably and fixedly connected to the top of the fixed cylinder 5. During operation, when the weight 55 hits the transmission lever 2, the pull rope 6 will suspend the weight 55, reducing the possibility of the weight 55 falling into the sea and reducing the waste of resources.

[0035] Working principle: In use, the tow cable 16 is fitted onto the support rod 14, and then the connecting frame 13 is slid upwards to insert the support rod 14 into the insertion hole 15. When towing a floating offshore wind turbine, the tow cable 16 is taut and pulls on the support rod 14 and the connecting frame 13, greatly increasing the friction between the connecting frame 13 and the fixed frame 12, preventing the connecting frame 13 from easily sliding down and causing the support rod 14 to detach from the insertion hole 15. In case of an emergency requiring rapid disconnection of the tow cable 16 to release the towing status, a downward force is applied to the connecting frame 13, causing it to descend and disengage the support rod 14 from the insertion hole 15. The support rod 14 then rotates, separating the tow cable 16 from the support rod 14, thus disconnecting the tow cable 16.

Claims

1. A quick disconnect device for tow cables, characterized in that, include: A tow cable quick disconnection device that enables the tow cable (16) to be quickly disconnected from the support rod (14); Includes a connecting column (1) that is in a fixed state; A fixing frame (12) is fixed in the middle of the connecting column (1), a connecting frame (13) is slidably connected in the middle of the fixing frame (12), a load-bearing rod (14) is rotatably connected in the middle of the connecting frame (13), an insertion hole (15) for the load-bearing rod (14) is provided in the middle of the fixing frame (12), and a drag cable (16) is sleeved in the middle of the load-bearing rod (14). The fixed frame (12) is rotatably connected to a transmission lever (2) in the middle. A pair of fixed support rods (21) are fixedly connected to the bottom of the fixed frame (12). A rotatable pulley (22) is connected to the bottom end of the fixed support rod (21). A connecting rope (23) is sleeved on the pulley (22). The connecting rope (23) rotates by relying on the pulley (22). One end of the connecting rope (23) is fixedly connected to the bottom of the connecting frame (13), and the other end of the connecting rope (23) is fixedly connected to the bottom of the transmission lever (2) near the connecting frame (13). The transmission lever (2) rotates on the fixed frame (12) and pulls the connecting frame (13) downward with the connecting rope (23). The fixed frame (12) located away from the connecting frame (13) has a through hole at its end, on which a sliding rod (4) is installed. A lifting rod (41) is fixed at the top of the sliding rod (4). The sliding rod (4) is fitted with a spring (42) and rests against the fixed frame (12). The lifting rod (41) contacts the bottom surface of the transmission lever (2). A fixing plate (7) is fixed to the end of the transmission lever (2) away from the connecting frame (13); a fixing cylinder (5) is fixed to the side wall of the connecting column (1) above the fixing plate (7); a bearing plate (51) is rotatably connected inside the fixing cylinder (5); a through groove (52) is opened on the side wall of the fixing cylinder (5); the end foot of the bearing plate (51) extends into the through groove (52); the bearing plate (51) rotates downward on the side away from the through groove (52); a spring rod (53) is fixed to the side wall of the fixing cylinder (5); a limit rod (54) is fixed to the bottom end of the spring rod (53); the limit rod (54) abuts against the bottom foot of the bearing plate (51); there is a weight (55) inside the fixing cylinder (5); the weight (55) is on the bearing plate (51).

2. The tow cable quick disconnection device as described in claim 1, characterized in that: The fixed frame (12) is connected to a sliding slider (3) in the middle. A wedge (31) is fixed at the bottom of the slider (3). A top rod (32) is fixed at the top of the transmission lever (2) near the connecting frame (13). The top rod (32) is locked in contact with the wedge (31). The slider (3) is locked between the connecting frame (13) and the fixed frame (12). Under normal conditions, the slider (3) restricts the connecting frame (13) from sliding downward on the fixed frame (12).

3. The tow cable quick disconnection device as described in claim 1, characterized in that: The top of the weight (55) is fixed with a pull rope (6), and the pull rope (6) is detachably and fixedly connected to the top of the fixed cylinder (5).

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