A tugboat hoisting device using a keel cable and its application method

Abstract

The application provides a kind of winch cable hoisting device for towing winch transfer and a method for using the same, and belongs to the technical field of hoisting.The winch cable hoisting device for towing winch transfer includes a gantry fixed on the edge of a ship deck, further includes: a lifting eye, which is arranged on the lower side of the gantry, a trolley connected to the lifting eye, a first pull rope slidingly connected to the trolley, one end of the first pull rope connected to a triangular plate connected to two winch cables and a main towing cable of a towing winch; and a winding part, which includes a winch frame fixed on the ship deck and a first winch and a second winch fixed on the winch frame.The application realizes remote and wire control operation through mechanized hoisting and track type transfer, liberates manpower from heavy and dangerous physical labor, solves the problem that traditional methods require multiple people to use a crowbar to pry repeatedly at close range to drag the stuck components through the barrier hole, and greatly improves the operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology, specifically to a tugboat hoisting device using a jib cable and its method of use. Background Technology

[0002] During the operation of large, non-self-propelled engineering vessels (such as dredgers and crane vessels), site relocation is frequently required. For vessels lacking self-propulsion capabilities, short-distance coastal relocation typically involves tugboat towing. In this process, the connection (towing) and separation (untowing) between the vessel and the tugboat are crucial operational procedures, and their efficiency and safety directly impact the overall effectiveness of the relocation operation.

[0003] Currently, when receiving or releasing towlines, such non-self-propelled vessels generally use the following method: after the triangular plate at the tugboat end is untied from the main towline, a small steel wire rope is used to pull and retrieve the triangular plate and its two connected keel cables (i.e., forked connecting cables), attempting to pass through the pre-set holes on the ship's side railing so that the triangular plate assembly can be retrieved to the deck surface for subsequent untying operations.

[0004] However, the aforementioned traditional recovery methods have significant drawbacks and safety hazards: 1. Difficult and inefficient recovery operation: Because the triangular plate connects two heavy tether cables, even when pulled to a height near the railing hole using a small steel wire rope, the triangular plate assembly (especially the tether cable part) is very easy to get stuck on the deck edge or under the railing, making it difficult to pass through the hole smoothly. Operators usually need at least two people working closely together on the deck, using tools such as crowbars to repeatedly pry and adjust the direction in order to barely drag the assembly to the deck. This process is not only time-consuming and labor-intensive, but also complicated, greatly reducing operational efficiency; 2. High risk of structural damage: During the recovery process, The weight and tension of the two heavy balustrades will directly affect the side railings and the deck eyeplates (ground railings) at the top. The huge load makes the welds at the connection between the railing posts and the deck very prone to cracking. This not only requires frequent welding repairs and eyeplate replacements, resulting in additional maintenance costs and downtime, but more importantly, the weld cracks and eyeplate deformation directly weaken the strength of the hull structure, posing a serious safety hazard. 3. Personnel safety hazards: Operators need to use crowbars at close range (at the edge of the deck) to pry and adjust under the suspended heavy loads, which poses a risk of being hit, squeezed, or slipped by falling components or broken ropes. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art, and to propose a tugboat hoisting device using a tugboat and its method of use.

[0006] A tugboat hoisting device using keel cables includes a gantry crane fixed to the edge of the ship's deck, and further includes:

[0007] The lifting ring is located on the lower side of the gantry frame. A trolley is connected to the lifting ring, and a first pull rope is slidably connected to the trolley. One end of the first pull rope is connected to a triangular plate that is connected to two gantry cables and the main towing cable of the towing wheel.

[0008] The winding section includes a winch frame fixed on the ship's deck and a first winch and a second winch fixed on the winch frame. The end of the first pull rope away from the triangle plate is connected to the first winch. The second winch is provided with a second pull rope, and the end of the second pull rope away from the second winch is connected to a transfer seat for transferring the triangle plate.

[0009] Preferably, the bottom of the gantry is fixed with an installation plate connected to the ship's deck, and a reinforcing plate is provided between the installation plate and the gantry. The reinforcing plate has several round holes, and each round hole is provided with a hook for emergency locking of the gantry rope. Several hanging ears are provided on the two side columns of the gantry for suspending small safety chains. The gantry is inclinedly mounted on the installation plate.

[0010] Preferably, a slide is fixed on the ship deck, a track groove is opened on the slide, a roller is slidably connected in the track groove at the bottom of the transfer seat, and the upper end surface of the slide is inclined.

[0011] Preferably, the transfer seat includes a main seat body slidably connected to the slide rail, a movable plate slidably connected to the main seat body, a first elastic telescopic rod disposed between the movable plate and the main seat body, and baffles rotatably connected to both sides of the main seat body. The movable plate has several arc-shaped grooves for accommodating the dragon whisker cable on the side away from the inner wall of the main seat body, and a rotating shaft rotatably connected to the main seat body is fixed on the baffle.

[0012] Preferably, a support is fixedly provided on the movable plate, and a sleeve sleeve is fixedly provided on the support and fitted onto the outside of the rotating shaft. A spiral groove is provided on the inner side wall of the sleeve, and a fixing block that cooperates with the spiral groove is fixedly provided on the rotating shaft.

[0013] Preferably, one of the movable plates is fixed with an L-shaped plate, the L-shaped plate is fixed with a second elastic telescopic rod, the bottom of the second elastic telescopic rod is fixed with a positioning rod, the bottom of the positioning rod is provided with a pressing slope, the other movable plate is provided with a positioning hole that cooperates with the positioning rod, and a connecting rope is fixed between the movable plate and the positioning rod.

[0014] Preferably, the end of the connecting rope away from the bottom wall of the movable plate passes sequentially through the main seat, the rotating shaft, the baffle on the same side, the L-shaped plate, the second elastic telescopic rod, and is connected to the top of the positioning rod.

[0015] Preferably, the outer wall of the slide is rotatably connected to several check plates via pins, and a torsion spring is provided on the pin for driving the check plates to return to their original rotation. Both ends of the slide are provided with third elastic telescopic rods via support plates, and a lifting plate is connected between two of the third elastic telescopic rods. The lifting plate and the check plates move against each other.

[0016] Preferably, the transfer seat further includes a slide rod slidably connected to the main body, an elastic element is provided between the end of the slide rod and the inner wall of the main body, the other end of the slide rod is connected to a force plate, the force plate is connected to the end of the second pull rope away from the second winch, the bottom of the slide rod is movably connected to a swing rod through a rotating shaft, the swing rod is rotatably connected to the main body through a rotating rod, and the end of the swing rod away from the slide rod is movably abutted against the top of the lifting plate.

[0017] The present invention also discloses a method for using the aforementioned tugboat-based hoisting device with a keel cable, comprising the following steps:

[0018] S1: Operate the first winch to lift the triangular plate as a whole through the first pull rope to an appropriate height, so that the triangular plate is completely removed from the water surface and suspended in the air, and the height of the triangular plate at this time is higher than that of the transfer seat;

[0019] Operate the second winch to release the second pull rope, and slide the transfer seat from its storage position inside the ship's deck along the inclined slide to the outer edge of the ship's deck, that is, directly below the gantry.

[0020] Operate the first winch to release the first pull rope, so that the triangular plate falls onto the movable plate of the transfer seat. If the cable is in the uncoupling state at this time, the tassel cable connected to the triangular plate is in the arc groove of the movable plate.

[0021] S2: The weight of the dragon whisker cable and the triangular plate will press down on the movable plate. Through the cooperation of the support, sleeve and spiral groove, the rotating shaft will be driven to rotate, thereby causing the baffles on both sides to flip inward and close. The baffles, in conjunction with the arc groove, can limit the end of the dragon whisker cable, automatically "locking" the dragon whisker cable in the transfer seat to prevent the dragon whisker cable from slipping after being unloaded. The baffles can also prevent the triangular plate from falling from the transfer seat.

[0022] S3: Then operate the second winch to wind up the second rope and smoothly pull the fully loaded transfer seat back to a safe area on the ship's deck along the inclined slide.

[0023] During the towing process, the second pull rope pulls the slide bar through the force plate, causing the slide bar to shift relative to the main seat. When the slide bar shifts, it drives the swing rod to deflect, causing the end of the swing rod to press against the lifting plate, which in turn causes the lifting plate to press down on the check plate, preventing the check plate from obstructing the smooth sliding of the transfer seat.

[0024] During the retraction of the transfer seat, if the tension of the second pull rope on the transfer seat fails, the slide bar can be reset under the push of the elastic element, thereby resetting the lifting plate and the check plate. The check plate restricts the tendency of the transfer seat to slide down unexpectedly.

[0025] S4: After the cable splicing or unspinning work is completed, operate the second winch to release the second pull rope and slide the transfer seat loaded with the triangular plate from the ship's deck storage area along the slide to the outside of the deck edge.

[0026] Then, the first winch is operated to wind up the first rope, so that the first rope lifts the triangular plate. The triangular plate no longer presses down on the movable plate, and the two side baffles automatically open outward.

[0027] Then the second winch winds up the second rope, causing the transfer seat to be retracted, preventing it from obstructing the lowering of the triangle plate. Finally, the first winch releases the first rope, allowing the triangle plate to be lowered.

[0028] As can be seen from the above technical solutions, the present invention has the following beneficial effects:

[0029] 1. In this invention, by transferring the force point to the gantry and winch frame, and utilizing mechanized hoisting and rail-based transfer, remote and wire-controlled operation is achieved, freeing manpower from heavy and dangerous physical labor. This solves the problem that traditional methods require multiple people to repeatedly pry with crowbars at close range to drag stuck components through railing holes, greatly improving work efficiency.

[0030] 2. In this invention, by tilting the gantry frame, the top lifting point of the gantry frame is moved away from the edge of the ship's deck, thus avoiding the collision between the triangular plate and the ship's side wall when the first pull rope lifts the triangular plate through the pulley, which would cause damage to the ship's structure.

[0031] 3. In this invention, by placing the triangular plate on the transfer seat, the weight of the triangular plate will press down on the movable plate. Through the cooperation of the support, sleeve and spiral groove, the rotating shaft is driven to rotate, thereby causing the baffles on both sides to flip inward and close. The baffles, together with the arc groove, can limit the end of the dragon whisker cable, automatically "locking" the dragon whisker cable in the transfer seat to prevent the dragon whisker cable from slipping after being unloaded. In addition, the baffles can restrict the triangular plate from falling from the transfer seat, ensuring the smooth progress of the towing and unloading work.

[0032] 4. In this invention, by setting a check plate on the slide, the tendency of the transfer seat to slide down unexpectedly can be limited after the tension of the second pull rope fails. The check plates set at intervals on the slide can reduce the sliding distance of the transfer seat after it slides down unexpectedly, thereby reducing the impact inertia caused by long-distance sliding, avoiding structural damage, and ensuring the service life of the device.

[0033] 5. In this invention, when the second pull rope applies a pulling force to the transfer seat, the second pull rope pulls the slide rod through the force plate, and the slide rod is displaced relative to the main seat body. When the slide rod is displaced, it drives the swing rod to deflect, so that the end of the swing rod presses against the lifting plate, thereby causing the lifting plate to press down the check plate, so as to prevent the check plate from hindering the smooth sliding of the transfer seat and ensure that the transfer seat slides smoothly. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a front view of the present invention;

[0036] Figure 3 This is a schematic diagram of the external structure of the gantry frame of the present invention;

[0037] Figure 4 This is a schematic diagram of the gantry structure of the present invention;

[0038] Figure 5 This is a schematic cross-sectional view of the ship deck structure according to the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the transfer seat of the present invention;

[0040] Figure 7 This is a schematic cross-sectional view of the transfer seat of the present invention. Figure 1 ;

[0041] Figure 8 This is a schematic diagram of the separation structure of the rotating shaft and the sleeve of the present invention;

[0042] Figure 9 This is a schematic cross-sectional view of the transfer seat of the present invention. Figure 2 ;

[0043] Figure 10 This is a schematic diagram of the lifting plate of the present invention when it is not under stress;

[0044] Figure 11 This is a schematic diagram of the structure of the lifting plate of the present invention when it moves downward under force;

[0045] Figure 12 This is a schematic diagram of the cross-sectional structure of the sleeve on the same side as the baffle with the positioning hole.

[0046] In the diagram: 1. Ship deck; 2. Gantry frame; 201. Mounting plate; 202. Reinforcing plate; 2021. Circular hole; 203. Lug; 3. Lifting ring; 4. Pulley; 5. Winch frame; 501. First winch; 5011. First pull rope; 502. Second winch; 5021. Second pull rope; 6. Triangular plate; 601. Dragon whisker cable; 602. Tugboat main towing cable; 7. Transfer seat; 701. Main seat body; 702. Movable plate; 7021. Arc groove; 703. First elastic telescopic... 704. Rod; 705. Baffle; 705. Rotating shaft; 7051. Fixing block; 8. Slide rail; 801. Track groove; 802. Roller; 9. Support; 901. Sleeve; 9011. Spiral groove; 10. L-shaped plate; 1001. Second elastic telescopic rod; 1002. Positioning rod; 11. Positioning hole; 12. Connecting rope; 13. Check plate; 14. Third elastic telescopic rod; 141. Lifting plate; 15. Slide rod; 151. Elastic element; 152. Force plate; 153. Swing rod. Detailed Implementation

[0047] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0051] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A tugboat hoisting device using jib cables includes a gantry frame 2 fixed to the edge of a ship's deck 1. A guardrail should be installed at the edge of the ship's deck 1 to ensure operational safety. The gantry frame 2 is installed on a portion of the existing guardrail. It also includes a lifting ring 3 and a winding section. The lifting ring 3 is located on the lower side of the gantry frame 2, and a pulley 4 is connected to the lifting ring 3. A first pull rope 5011 is slidably connected to the pulley 4. One end of the first pull rope 5011 is connected to a triangular plate 6 connected to two jib cables 601 and the tugboat's main towing cable 602. The winding section includes a winch frame 5 fixed to the ship's deck 1 and a first winch 501 and a second winch 502 fixed to the winch frame 5. The end of the first pull rope 5011 away from the triangular plate 6 is connected to the first winch 501. A second pull rope 5021 is installed on the second winch 502, and the end of the second pull rope 5021 away from the second winch 502 is connected to a transfer seat 7 for transferring the triangular plate 6.

[0052] Furthermore, the bottom of the gantry 2 is fixed with an installation plate 201 connected to the ship deck 1. A reinforcing plate 202 is provided between the installation plate 201 and the gantry 2 to enhance forward tilting and lateral tension. Several round holes 2021 are provided on the reinforcing plate 202, and each round hole 2021 is provided with a hook for emergency locking of the gantry cable 601. Several hanging ears 203 are provided on both sides of the uprights of the gantry 2 for suspending small safety protection chains. The gantry 2 is inclined on the installation plate 201. The inclined setting of the gantry 2 keeps the top hoisting point of the gantry 2 away from the edge of the ship deck 1, so as to avoid the first pull rope 5011 hoisting the triangular plate 6 through the pulley 4, causing the triangular plate 6 to collide with the side wall of the ship and damage the hull structure.

[0053] Furthermore, a slide 8 is fixed on the ship deck 1, and a track groove 801 is opened on the slide 8. A roller 802 is slidably connected in the track groove 801 at the bottom of the transfer seat 7. The roller 802 is embedded in the track groove 801, so that the transfer seat 7 can only move along the track groove 801. The upper end surface of the slide 8 is inclined with a slope of 5-10 degrees, so that the transfer seat 7 can slide down the slope when it is not pulled by the second pull rope 5021.

[0054] Specifically, when it is necessary to hoist the triangular plate 6 to a safe position on the ship's deck 1 for towing or untowing the keel cable 601, the first winch 501 is operated to hoist the triangular plate 6 as a whole through the first pull rope 5011, raising it to an appropriate height so that the triangular plate 6 is completely removed from the water surface and suspended in the air, and the height of the triangular plate 6 at this time is higher than that of the transfer seat 7.

[0055] Then, the second winch 502 is operated to release the second pull rope 5021, and the transfer seat 7 slides down the inclined plane of the slideway 8 from the storage position inside the ship deck 1 to the outer edge of the ship deck 1, that is, directly below the gantry 2.

[0056] Operate the first winch 501 to release the first pull rope 5011, so that the triangle plate 6 falls onto the transfer seat 7. Then operate the second winch 502 to wind up the second pull rope 5021, and smoothly pull the fully loaded transfer seat 7 back to the safe area on the ship deck 1 along the inclined slide 8.

[0057] This application transfers the stress point to the gantry 2 and winch frame 5, and utilizes mechanized hoisting and rail-mounted transfer to achieve remote, wire-controlled operation. This frees manpower from heavy and dangerous physical labor, and solves the problem that traditional methods require multiple people to repeatedly pry with crowbars at close range to drag stuck components through railing holes. This saves time in connecting and unpulling components, greatly improves time utilization, and significantly enhances work efficiency.

[0058] Reference Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As a preferred technical solution in this embodiment, the transfer seat 7 includes a main seat body 701 slidably connected to the slide rail 8, a movable plate 702 slidably connected inside the main seat body 701, a first elastic telescopic rod 703 disposed between the movable plate 702 and the main seat body 701, and baffles 704 rotatably connected to both sides of the main seat body 701. The movable plate 702 has several arc-shaped grooves 7021 for accommodating the dragon whisker cable 601 on the side away from the inner wall of the main seat body 701. A rotating shaft 705 rotatably connected to the main seat body 701 is fixed on the baffle 704. The first elastic telescopic rod 703 provides an automatic restoring force after the movable plate 702 is pressed down, and a spring is disposed inside it.

[0059] Furthermore, a support 9 is fixed on the movable plate 702, and a sleeve 901 is fixed on the support 9 and sleeved on the outside of the rotating shaft 705. A spiral groove 9011 is opened on the inner side wall of the sleeve 901, and a fixing block 7051 that cooperates with the spiral groove 9011 is fixed on the rotating shaft 705.

[0060] Specifically, during the unloading operation, a derrick cable 601 is installed on the triangular plate 6. When the hoisted triangular plate 6 is placed in the transfer seat 7, the weight of the derrick cable 601 and the triangular plate 6 will press down on the movable plate 702. The derrick cable 601 connected to the triangular plate 6 is located in the arc-shaped groove 7021 of the movable plate 702. Through the cooperation of the support 9, the sleeve 901 and the spiral groove 9011, when the movable plate 702 drives the sleeve 901 to move downward, the sleeve... The spiral groove 9011 inside 901 drives the fixed block 7051 to move, which in turn drives the rotating shaft 705 to rotate, thereby causing the baffles 704 on both sides to flip inward and close. The baffles 704, together with the arc groove 7021, can limit the end of the dragon whisker cable 601, automatically "locking" the dragon whisker cable 601 in the transfer seat 7, preventing the dragon whisker cable 601 from slipping off after being unloaded, and the baffles 704 can also prevent the triangular plate 6 from falling from the transfer seat 7.

[0061] Reference Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 12 As a preferred technical solution in this embodiment, an L-shaped plate 10 is fixed on one of the movable plates 702, a second elastic telescopic rod 1001 is fixed on the L-shaped plate 10, a positioning rod 1002 is fixed at the bottom of the second elastic telescopic rod 1001, and a pressing slope is opened at the bottom of the positioning rod 1002. A positioning hole 11 that cooperates with the positioning rod 1002 is opened on the other movable plate 702, and a connecting rope 12 is fixed between the movable plate 702 and the positioning rod 1002.

[0062] Furthermore, the end of the connecting rope 12 away from the bottom wall of the movable plate 702 passes through the main body 701, the rotating shaft 705, the baffle 704 on the same side, the L-shaped plate 10, the second elastic telescopic rod 1001, and is connected to the top of the positioning rod 1002. The second elastic telescopic rod 1001 facilitates the driving of the positioning rod 1002 to reset, and a spring is provided inside it. It should be noted that the pitch of the spiral groove 9011 on the sleeve 901 of the baffle 704 with the positioning hole 11 is smaller than that of the spiral groove 9011 on the other sleeve 901, so that the baffle 704 with the positioning hole 11 can close first compared to the other baffle 704. The spiral groove 9011 with the smaller pitch should be connected to a vertical groove so that when the movable plate 702 continues to move down to drive the other unclosed baffle 704 to continue to rotate, the fixed block 7051 that has completed the rotation work slides in the vertical groove.

[0063] Specifically, the spiral grooves 9011 on the sleeves 901 on both sides of the main body 701 have different pitches. The baffle 704 with the positioning hole 11 closes first when the sleeve 901 moves down, while the baffle 704 on the other side closes slightly slower. When the movable plate 702 moves down, the connecting rope 12 loosens and no longer applies tension to the second elastic telescopic rod 1001. When the positioning rod 1002 rotates with the slightly slower baffle 704, its pressing inclined surface abuts against the baffle 704 that closes first. The positioning rod 1002 avoids the baffle 704 until both baffles 704 have completed their closing work. At this time, the two baffles 704 are on the same plane, and the positioning rod 1002 is inserted into the positioning hole 11 under the elastic force of the second elastic telescopic rod 1001, thereby further locking the two baffles 704 and effectively preventing the triangular plate 6 from slipping out of the main body 701 or the tassel cable 601 from falling out of the arc groove 7021.

[0064] Reference Figure 5 , Figure 9 , Figure 10 and Figure 11 As a preferred technical solution in this embodiment, the outer wall of the slide 8 is rotatably connected to several check plates 13 by a pin shaft. A torsion spring for driving the check plate 13 to reset rotation is provided on the pin shaft. Both ends of the slide 8 are provided with third elastic telescopic rods 14 through support plates. A lifting plate 141 is connected between two third elastic telescopic rods 14. The lifting plate 141 and the check plate 13 move against each other.

[0065] Furthermore, the transfer seat 7 also includes a slide rod 15 slidably connected inside the main seat body 701. An elastic element 151 is provided between the end of the slide rod 15 and the inner wall of the main seat body 701. The other end of the slide rod 15 is connected to a force plate 152. The force plate 152 is connected to the end of the second pull rope 5021 away from the second winch 502. The bottom of the slide rod 15 is movably connected to a swing rod 153 through a rotating shaft. The swing rod 153 is rotatably connected to the main seat body 701 through a rotating rod. The end of the swing rod 153 away from the slide rod 15 is movably abutted against the top of the lifting plate 141.

[0066] Specifically, the second winch 502 is operated to wind up the second pull rope 5021, and the fully loaded transfer seat 7 is smoothly pulled back to the safe area on the ship deck 1 along the inclined slide 8.

[0067] During the towing process, as the second pull rope 5021 pulls the slide bar 15 through the force plate 152, the transfer seat 7 will have a tendency to slide down the slide rail 8 under its own weight. The slide bar 15 is displaced relative to the main seat body 701. When the slide bar 15 is displaced, it drives the swing rod 153 to deflect, so that the end of the swing rod 153 presses against the lifting plate 141, thereby causing the lifting plate 141 to press down the check plate 13, so as to prevent the check plate 13 from obstructing the smooth sliding of the transfer seat 7.

[0068] During the retraction of the transfer seat 7, if the pulling force of the second pull rope 5021 on the transfer seat 7 fails, the slide bar 15 can be reset under the elastic force of the elastic element 151, thereby resetting the lifting plate 141 and the check plate 13. The check plate 13 restricts the tendency of the transfer seat 7 to slide down unexpectedly.

[0069] Furthermore, the anti-return plates 13 spaced out on the slide rail 8 can reduce the sliding distance of the transfer seat 7 after it accidentally slides down, thereby reducing the impact inertia caused by long-distance sliding, avoiding structural damage, and ensuring the service life of the device.

[0070] This invention also discloses a method for using a tugboat to lift a jib cable, comprising the following steps:

[0071] S1: Operate the first winch 501 to lift the triangular plate 6 as a whole through the first pull rope 5011, raise it to an appropriate height, so that the triangular plate 6 is completely removed from the water surface and suspended in the air, and the height of the triangular plate 6 is higher than that of the transfer seat 7 at this time.

[0072] Operate the second winch 502 to release the second pull rope 5021, and slide the transfer seat 7 from the storage position inside the ship deck 1 along the inclined surface of the slide 8 to the outer edge of the ship deck 1, that is, directly below the gantry 2.

[0073] Operate the first winch 501 to release the first pull rope 5011, so that the triangular plate 6 falls on the movable plate 702 of the transfer seat 7. If it is in the unmooring state at this time, the tassel cable 601 connected to the triangular plate 6 is in the arc groove 7021 of the movable plate 702.

[0074] S2: The weight of the dragon whisker cable 601 and the triangular plate 6 will press down on the movable plate 702. Through the cooperation of the support 9, the sleeve 901 and the spiral groove 9011, the rotating shaft 705 is driven to rotate, thereby causing the baffles 704 on both sides to flip inward and close. The baffles 704, in conjunction with the arc groove 7021, can limit the end of the dragon whisker cable 601, automatically "locking" the dragon whisker cable 601 in the transfer seat 7, preventing the dragon whisker cable 601 from slipping after being unloaded, and the baffles 704 can also limit the triangular plate 6 from falling from the transfer seat 7.

[0075] S3: Then operate the second winch 502 to wind up the second pull rope 5021, and smoothly pull the fully loaded transfer seat 7 back to the safe area on the ship deck 1 along the inclined slide 8.

[0076] During the towing process, the second pull rope 5021 pulls the slide rod 15 through the force plate 152, causing the slide rod 15 to shift relative to the main seat 701. When the slide rod 15 shifts, it drives the swing rod 153 to deflect, causing the end of the swing rod 153 to press against the lifting plate 141, which in turn causes the lifting plate 141 to press down the check plate 13, preventing the check plate 13 from obstructing the smooth sliding of the transfer seat 7.

[0077] During the retraction of the transfer seat 7, if the pulling force of the second pull rope 5021 on the transfer seat 7 fails, the slide bar 15 can be reset under the elastic force of the elastic element 151, thereby resetting the lifting plate 141 and the check plate 13. The check plate 13 restricts the tendency of the transfer seat 7 to slide down unexpectedly.

[0078] S4: After the cable splicing or unspinning work is completed, operate the second winch 502 to release the second pull rope 5021, and slide the transfer seat 7 carrying the triangular plate 6 from the storage area of ​​the ship deck 1 along the slide 8 to the outside edge of the deck.

[0079] Then, the first winch 501 is operated to wind up the first pull rope 5011, so that the first pull rope 5011 lifts the triangular plate 6, the triangular plate 6 no longer presses down on the movable plate 702, and the side baffles 704 automatically open outward.

[0080] Subsequently, the second winch 502 winds up the second pull rope 5021, causing the transfer seat 7 to be retracted, thus preventing the transfer seat 7 from obstructing the lowering of the triangle plate 6. Finally, the first winch 501 releases the first pull rope 5011, allowing the triangle plate 6 to be lowered.

[0081] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A derrick for hoisting a barge with a derrick cable, comprising a gantry (2) which is fastened to the edge of a ship deck (1), characterized in that, Also include: The lifting ring (3) is arranged on the lower side of the portal frame (2), the lifting ring (3) is connected with the trolley (4), the trolley (4) is connected with the first pull rope (5011) through sliding connection, one end of the first pull rope (5011) is connected with the triangular plate (6) connected with two dragon whisker cables (601) and the tugboat main tow rope (602); And the winding part, the winding part includes the winch frame (5) fixed on the ship deck (1) and the first winch (501) and the second winch (502) fixed on the winch frame (5), the end of the first pull rope (5011) away from the triangular plate (6) is connected with the first winch (501), the second winch (502) is provided with the second pull rope (5021), the end of the second pull rope (5021) away from the second winch (502) is connected with the transfer seat (7) for transferring the triangular plate (6); The bottom of the portal frame (2) is fixed with the mounting plate (201) connected with the ship deck (1), the mounting plate (201) and the portal frame (2) are provided with the reinforcing plate (202), a plurality of round holes (2021) are formed in the reinforcing plate (202), each round hole (2021) is provided with a hanging and unloading buckle for emergency locking the dragon whisker cable (601), a plurality of hanging ears (203) are arranged on the two side columns of the portal frame (2) for hanging small chain for safety protection, the portal frame (2) is inclinedly arranged on the mounting plate (201); The ship deck (1) is fixed with the slide (8), the slide (8) is provided with a track groove (801), the bottom of the transfer seat (7) is provided with a roller (802) slidingly connected in the track groove (801), and the upper end surface of the slide (8) is inclinedly arranged; The transfer seat (7) includes a main seat body (701) slidingly connected on the slide (8), a movable plate (702) slidingly connected in the main seat body (701), a first elastic expansion rod (703) arranged between the movable plate (702) and the main seat body (701), and a baffle (704) rotatably connected on both sides of the main seat body (701), a plurality of arc-shaped grooves (7021) for accommodating the dragon whisker cable (601) are formed in the side of the movable plate (702) away from the inner side wall of the main seat body (701), and the baffle (704) is fixedly provided with a rotating shaft (705) rotatably connected with the main seat body (701).

2. A kind to be transported by the device of claim 1 with the cable of towboat, it is characterized in that, The movable plate (702) is fixedly provided with a support (9), the support (9) is fixedly provided with a sleeve (901) sleeved outside the rotating shaft (705), a helical groove (9011) is formed in the inner side wall of the sleeve (901), and the rotating shaft (705) is fixedly provided with a fixed block (7051) matched with the helical groove (9011).

3. A device for hoisting a barge by a towrope according to claim 2, characterized in that, One of the movable plates (702) is fixed with an L-shaped plate (10), the L-shaped plate (10) is fixed with a second elastic telescopic rod (1001), the bottom of the second elastic telescopic rod (1001) is fixed with a positioning rod (1002), the bottom of the positioning rod (1002) is provided with an extrusion inclined surface, the other movable plate (702) is provided with a positioning hole (11) matched with the positioning rod (1002), and the movable plate (702) and the positioning rod (1002) are fixed with a connecting rope (12).

4. A device for hoisting a barge by a towrope according to claim 3, characterized in that, The end of the connecting rope (12) away from the bottom wall of the movable plate (702) is sequentially threaded through the main seat body (701), the rotating shaft (705), the baffle (704) on the same side, the L-shaped plate (10), the second elastic telescopic rod (1001) and the top of the positioning rod (1002).

5. A device for hoisting a barge by a towrope according to claim 4, characterized in that, The outer side wall of the slide (8) is rotatably connected with a plurality of check plates (13) through a pin shaft, a torsional spring is arranged on the pin shaft and used to drive the check plate (13) to reset rotation, the slide (8) is provided with a third elastic telescopic rod (14) at both ends through a support plate, a lifting plate (141) is connected between the two third elastic telescopic rods (14), and the lifting plate (141) is in movable abutment with the check plate (13).

6. A kind of winch transfer with bungee cable hoist device according to claim 5, with the characteristics of, The transfer seat (7) further comprises a sliding rod (15) slidably connected in the main seat body (701), an elastic element (151) is arranged between the end of the sliding rod (15) and the inner wall of the main seat body (701), the other end of the sliding rod (15) is connected with a stress plate (152), the stress plate (152) is connected with the end of the second pull rope (5021) away from the second winch (502), the bottom of the sliding rod (15) is movably connected with a swing rod (153) through a rotating shaft, the swing rod (153) is rotatably connected with the main seat body (701) through a rotating rod, and the end of the swing rod (153) away from the sliding rod (15) is in movable abutment with the top of the lifting plate (141).

7. A method of using the derrick device for hoisting the derrick device with the derrick line according to claim 6, characterized in that, The method comprises the following steps: S1: operate the first winch (501) to lift the triangular plate (6) as a whole through the first pull rope (5011), lift to an appropriate height, make the triangular plate (6) completely separate from the water surface and hang in the air, and make the height of the triangular plate (6) higher than the transfer seat (7) at this time; operate the second winch (502) to release the second pull rope (5021), and slide the transfer seat (7) from the storage position on the inner side of the ship deck (1) to the outside of the edge of the ship deck (1), that is, directly below the gantry (2) along the inclined surface of the slide (8); operate the first winch (501) to release the first pull rope (5011), and make the triangular plate (6) fall on the movable plate (702) of the transfer seat (7), at this time, if it is in the unmooring state, the dragon whisk rope (601) connected with the triangular plate (6) is in the arc-shaped groove (7021) of the movable plate (702); S2: The weight of the long cable (601) and the triangular plate (6) will press down the movable plate (702), through the cooperation of the support (9), the sleeve (901) and the spiral groove (9011), the rotating shaft (705) is driven to rotate, thereby driving the baffle (704) on both sides to turn inward and close, the baffle (704) cooperates with the arc-shaped groove (7021) to limit the end of the long cable (601), and the long cable (601) is automatically "locked" in the transfer seat (7), so that the long cable (601) is prevented from slipping after being pulled off, and the baffle (704) can prevent the triangular plate (6) from falling off from the transfer seat (7); S3: Then operate the second winch (502) to wind the second pull rope (5021), and pull the full load transfer seat (7) along the inclined slide (8) back to the safe area on the ship deck (1); During the pulling back process, the second pull rope (5021) pulls the sliding rod (15) through the force receiving plate (152), the sliding rod (15) displaces relative to the main seat body (701), the sliding rod (15) displaces to drive the swing rod (153) to deflect, the end of the swing rod (153) abuts against the lifting plate (141), and then the lifting plate (141) presses down the check plate (13), so that the check plate (13) avoids hindering the smooth sliding of the transfer seat (7); During the pulling back process, the second pull rope (5021) pulls the sliding rod (15) through the force receiving plate (152), the sliding rod (15) displaces relative to the main seat body (701), the sliding rod (15) displaces to drive the swing rod (153) to deflect, the end of the swing rod (153) abuts against the lifting plate (141), and then the lifting plate (141) presses down the check plate (13), so that the check plate (13) avoids hindering the smooth sliding of the transfer seat (7); S4: After the mooring or unmooring work is completed, operate the second winch (502) to release the second pull rope (5021), and slide the transfer seat (7) loaded with the triangular plate (6) from the storage area on the ship deck (1) to the outside of the deck edge along the slide (8); Then operate the first winch (501) to wind the first pull rope (5011), so that the first pull rope (5011) lifts the triangular plate (6), and the triangular plate (6) no longer presses down the movable plate (702), and the baffles (704) on both sides are automatically opened outward; Then the second winch (502) winds the second pull rope (5021), so that the transfer seat (7) is retracted, avoiding that the transfer seat (7) hinders the lowering of the triangular plate (6), and finally the first winch (501) releases the first pull rope (5011), so that the triangular plate (6) is lowered.

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