Anti-sway single point lifting device for semi-closed rescue work boat

Abstract

The utility model provides a kind of anti-shaking single-point hoisting device of semi-closed rescue work boat, it is related to the single-point hoisting equipment field of rescue work boat, including rescue ship, rescue boat, the rescue boat is located rescue ship deck one side, hoisting mechanism, including the hoisting assembly for hoisting the rescue boat, and the steering assembly for adjusting hoisting direction, lifting mechanism, including the support assembly for rescue boat hoisting lifting, and the second electric hoist for the lifting of support assembly;The utility model is cooperated with the structure of hoisting mechanism and lifting mechanism, in the process of hoisting rescue boat, the first electric hoist of hoisting assembly is connected rescue boat by wire rope and hook to carry out preliminary hoisting, in the process of rescue boat hoisting, lifting mechanism can stably lift rescue boat, reduce the shaking caused by sea wave, wind external factor, greatly reduce the operation difficulty, guarantee the safety of rescue work boat and personnel on boat.

Description

Technical Field

[0001] This utility model belongs to the field of single-point hoisting equipment for rescue workboats, specifically a single-point hoisting device for anti-swaying of a semi-enclosed rescue workboat. Background Technology

[0002] The single-point launch device, also known as a single-arm suspended davit, is one of the core pieces of equipment used by ships to quickly launch and retrieve rescue boats in emergency situations. This device plays a crucial role in ship rescue operations and is mainly composed of several key components such as a lifting arm, a sling system, a hydraulic drive system, and a control system. These components work together to ensure that the rescue boat can be safely and efficiently launched to the water or retrieved to the ship in the shortest possible time, thereby greatly improving the ship's response speed and operational flexibility in maritime rescue missions. Rescue workboats are specialized small working boats equipped on ships or offshore facilities. They are mainly used for maritime emergency rescue, personnel transfer, material transportation, and operations in specific waters. They combine high efficiency and maneuverability with multi-functionality. Rescue workboats are usually carried by rescue vessels so that they can be quickly deployed in critical moments to ensure the smooth progress of maritime rescue and operational tasks. When deploying or recovering rescue workboats, a single-point launching device is required. However, during the operation of traditional single-point launching devices, due to the influence of external factors such as waves and wind, rescue workboats often experience significant swaying. This not only increases the difficulty of operation but may also pose safety hazards to the rescue workboat and its crew.

[0003] In summary, this utility model provides an anti-sway single-point hoisting device for a semi-enclosed rescue workboat to solve the above-mentioned problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A single-point hoisting device for a semi-enclosed rescue workboat includes a rescue vessel and a rescue boat, the rescue boat being located on one side of the deck of the rescue vessel. The hoisting mechanism includes a hoisting assembly for hoisting the rescue boat and a steering assembly for adjusting the hoisting direction. The lifting mechanism includes a support assembly for hoisting and lifting the rescue boat, and a second electric hoist for raising and lowering the support assembly. The second electric hoist is fixed to one side of the deck of the rescue vessel via a bracket. The support assembly includes a support plate, columns fixed to both sides of the top of the support plate, support rods located on both sides of the front of the support plate, a second hydraulic cylinder located on the surface of the columns, a connecting plate for connecting the support rods, a fixing seat for fixing the second hydraulic cylinder, slide rails located on both sides of the support plate, and rollers slidably connected to the inner cavity of the slide rails.

[0005] Furthermore, in this utility model, the hoisting assembly includes a base, a support seat located on top of the base, a boom located on top of the support seat, a first hydraulic cylinder for supporting the boom, and a first electric hoist fixed to the top of the boom.

[0006] Furthermore, in this utility model, one end of the first hydraulic cylinder is movably connected to the support base via a movable pin, the output end of the first hydraulic cylinder is movably connected to the boom via a movable pin, and the boom is movably connected to the support base via a movable pin.

[0007] Furthermore, in this utility model, the steering assembly is located between the base and the support seat, and the steering assembly includes a gear ring located at the bottom of the support seat, a servo motor fixed to the surface of the support seat, and a gear located at the bottom of the support seat that meshes with the gear ring.

[0008] Furthermore, in this invention, the output shaft of the servo motor is connected to a gear transmission, and the bottom of the gear ring is rotatably connected to the top of the base via a slewing bearing.

[0009] Furthermore, in this utility model, the slide rails are fixed to both sides of the hull of the rescue boat, the support plate is located between the two slide rails, the rollers are rotatably connected to the support plate via a rotating shaft, the output end of the second hydraulic cylinder is movably connected to the support rod via a movable pin, the tail end of the second hydraulic cylinder is movably connected to the fixed seat via a movable pin, and the fixed seat is fixed to the surface of the column, the connecting plate is fixedly connected to the support plate, and the support rod is movably connected to the connecting plate via a movable pin.

[0010] Furthermore, in this utility model, both the first electric hoist and the second electric hoist consist of a winch, a drive motor, a wire rope, and a hook. The first electric hoist is movably connected to the rescue boat via the wire rope and the hook, and the second electric hoist is movably connected to the support plate via the wire rope and the hook.

[0011] Beneficial effects: This utility model has the following beneficial effects: This invention features a structure that combines a hoisting mechanism with a lifting mechanism. During the hoisting of the rescue boat, the first electric hoist of the hoisting assembly connects to the rescue boat via a wire rope and hook for initial hoisting. Simultaneously, the servo motor of the steering assembly drives the gear ring to rotate, causing the support base and boom to rotate as a whole, enabling flexible adjustment of the hoisting direction and effectively addressing hoisting needs from different angles. In the support assembly of the lifting mechanism, rollers on both sides of the support plate slide within the slide rail cavity. The second electric hoist connects to the support plate via a wire rope and hook, thereby raising and lowering the support plate. During the hoisting of the rescue boat, the lifting mechanism can stably lift the rescue boat, reducing swaying caused by external factors such as waves and wind, greatly reducing operational difficulty, ensuring the safety of the rescue boat and its personnel, and improving the response speed and operational flexibility of the vessel in maritime rescue missions. This effectively solves the problem of significant swaying of the rescue boat during operation with traditional single-point hoisting devices. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the rescue boat and the support components of this utility model; Figure 3 This is a schematic diagram of the main structure of the lifting mechanism of this utility model; Figure 4 This is a schematic diagram of the connection state structure of the support component of this utility model.

[0013] In the picture: 100. Rescue boat; 200. Rescue vessel; 300. Lifting mechanism; 310. Lifting assembly; 311. Base; 312. Support seat; 313. Boom; 314. First hydraulic cylinder; 315. First electric hoist; 320. Steering assembly; 321. Gear ring; 322. Servo motor; 323. Gear; 400. Lifting mechanism; 410. Support assembly; 411. Support plate; 412. Column; 413. Support rod; 414. Second hydraulic cylinder; 415. Connecting plate; 416. Fixed seat; 417. Slide rail; 418. Roller; 420. Second electric hoist. Detailed Implementation

[0014] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0015] Example 1 like Figure 1-4 The image shows the first embodiment of this utility model. This embodiment provides an anti-sway single-point hoisting device for a semi-enclosed rescue workboat, including a rescue vessel 100, a rescue boat 200, the rescue boat 200 being located on one side of the deck of the rescue vessel 100, a hoisting mechanism 300 including a hoisting component 310 for hoisting the rescue boat 200, and a steering component 320 for adjusting the hoisting direction, and a lifting mechanism 400 including a support component 410 for hoisting and lifting the rescue boat 200, and a second electric hoist 420 for raising and lowering the support component 410. The second electric hoist 420 is fixed to one side of the deck of the rescue vessel 100 by a bracket. The support assembly 410 includes a support plate 411, columns 412 fixed to the top two sides of the support plate 411, support rods 413 located on the front two sides of the support plate 411, a second hydraulic cylinder 414 located on the surface of the column 412, a connecting plate 415 for connecting the support rods 413, a fixing seat 416 for fixing the second hydraulic cylinder 414, slide rails 417 located on both sides of the support plate 411, and rollers 418 slidably connected to the inner cavity of the slide rails 417.

[0016] like Figure 1-4 As shown, the hoisting assembly 310 in the hoisting mechanism 300 is used to directly hoist the rescue boat 200. The steering assembly 320 can adjust the direction as needed before or during hoisting. The lifting mechanism 400 assists the hoisting assembly 310 in the hoisting process. The second hydraulic cylinder 414 controls the extension and retraction of the support rod 413, driving one end of the support rod 413 to rotate around the connecting plate 415, so that it is in a lateral state to provide support for the rescue boat 200 and to achieve fine-tuning of the attitude of the rescue boat 200 so that it can smoothly enter the water. The support plate 411 is provided with slide rails 417 and rollers 418 on both sides. Through the limiting of the slide rails 417 and rollers 418, the support plate 411 is effectively prevented from deviating during the lifting and lowering process. During the hoisting process, the steering component 320 can flexibly adjust the hoisting direction as needed to ensure that the rescue boat 200 accurately reaches the designated position. In the lifting mechanism 400, after the second electric hoist 420 is started, it drives the support component 410 to rise or fall. The support plate 411, as the main load-bearing component, has columns 412 on both sides of its top providing stable support for the rescue boat 200. The support rods 413 on both sides of the front further enhance stability. The second hydraulic cylinder 414, fixed by the fixed seat 416, is connected to the support rod 413 through the connecting plate 415. The cooperation between the slide rail 417 and the roller 418 makes the support component 410 more stable and smooth during the lifting process. Through the coordinated cooperation of the hoisting mechanism 300 and the lifting mechanism 400, the problem of the rescue boat 200 swaying due to external disturbances in traditional hoisting devices is effectively solved, improving the safety and efficiency of maritime rescue operations.

[0017] Example 2 Reference Figure 1 and 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0018] In this embodiment, the hoisting assembly 310 includes a base 311, a support seat 312 located on top of the base 311, a boom 313 located on top of the support seat 312, a first hydraulic cylinder 314 for supporting the boom 313, and a first electric hoist 315 fixed to the top of the boom 313.

[0019] One end of the first hydraulic cylinder 314 is movably connected to the support base 312 via a movable pin, and the output end of the first hydraulic cylinder 314 is movably connected to the boom 313 via a movable pin. The boom 313 is movably connected to the support base 312 via a movable pin.

[0020] The steering assembly 320 is located between the base 311 and the support 312. The steering assembly 320 includes a gear ring 321 located at the bottom of the support 312, a servo motor 322 fixed to the surface of the support 312, and a gear 323 located at the bottom of the support 312 and meshing with the gear ring 321.

[0021] The output shaft of the servo motor 322 is connected to the gear 323 for transmission, and the bottom of the gear ring 321 is rotatably connected to the top of the base 311 through a slewing bearing.

[0022] like Figure 1 and 2As shown, when the servo motor 322 starts, its output shaft drives the gear 323 to rotate. Since the gear 323 meshes with the gear ring 321, the gear ring 321 will rotate accordingly. The bottom of the gear ring 321 is rotatably connected to the top of the base 311 through a slewing bearing, so that the support 312 will rotate horizontally on the base 311, thereby driving the boom 313 located on the top of the support 312 to rotate together, realizing the steering function. During the hoisting process, the first hydraulic cylinder 314 can extend and retract according to actual needs. One end of it is movably connected to the support base 312 via a movable pin, and the output end is movably connected to the boom 313 via a movable pin. The boom 313 is also movably connected to the support base 312 via a movable pin. When the first hydraulic cylinder 314 extends and retracts, it will drive the boom 313 to swing up and down around the movable connection point with the support base 312, thereby adjusting the angle of the boom 313. The first electric hoist 315, which is fixed to the top of the boom 313, can be used to lift and lower the rescue boat 200. By controlling the operation of the first electric hoist 315, the hoisting and lowering operation of the rescue work boat can be realized.

[0023] Example 3 Reference Figure 1-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0024] In this embodiment, slide rails 417 are fixed to both sides of the hull of rescue vessel 100, support plate 411 is located between two slide rails 417, rollers 418 are rotatably connected to support plate 411 via a rotating shaft, the output end of the second hydraulic cylinder 414 is movably connected to support rod 413 via a movable pin, the tail end of the second hydraulic cylinder 414 is movably connected to fixed seat 416 via a movable pin, and fixed seat 416 is fixed to the surface of column 412, connecting plate 415 is fixedly connected to support plate 411, and support rod 413 is movably connected to connecting plate 415 via a movable pin.

[0025] Both the first electric hoist 315 and the second electric hoist 420 consist of a winch, a drive motor, a wire rope, and a hook. The first electric hoist 315 is movably connected to the rescue boat 200 via the wire rope and the hook, and the second electric hoist 420 is movably connected to the support plate 411 via the wire rope and the hook.

[0026] like Figure 1-4As shown, during the actual hoisting and lowering of the rescue boat 200, the second hydraulic cylinder 414 is activated. Since the output end of the second hydraulic cylinder 414 is movably connected to the support rod 413 through a movable pin, and the tail end is movably connected to the fixed seat 416 fixed on the surface of the column 412 through a movable pin, under the action of the second hydraulic cylinder 414, the support rod 413 rotates around the connecting plate 415. The output end of the second hydraulic cylinder 414 extends and drives the support rod 413 to rotate downward. Conversely, it causes the support rod 413 to flip upward to form a support platform. The rescue boat 200 is then hoisted to the top of the support rod 413 by the hoisting assembly 310. The drive motor of the first electric hoist 315 drives the winch to rotate, causing the steel wire rope wound on the winch to be lowered. It is then connected to the rescue boat 200 via a hook, thus slowly lowering the rescue boat 200. At the same time, the second electric hoist 420 also drives the winch to rotate via its drive motor, lowering the steel wire rope. It is connected to the support plate 411 via a hook, assisting in adjusting the position and balance of the support plate 411, ensuring that the rescue boat 200 remains stable during the lowering process, preventing large-scale swaying, and achieving a safe and stable single-point hoisting operation for the rescue boat 200.

[0027] In use, firstly, the second hydraulic cylinder 414 drives the support rod 413 to rise. The output end of the second hydraulic cylinder 414 retracts, causing the support rod 413 to rotate around the connecting plate 415, raising one end to form a support platform. Then, the rescue boat 200 is hoisted to the top of the support rod 413 by the hoisting assembly 310. The first electric hoist 315 is started, and its drive motor rotates to drive the winch to rotate, which in turn causes the steel wire rope wound on the winch to be slowly lowered. It is then securely connected to the rescue boat 200 through the hook, hoisting the rescue boat 200 to the top of the support rod 413. At the same time, the second electric hoist 420 is also started synchronously. The second electric hoist 420 controls the support assembly 410 to be hoisted, so that it is hoisted synchronously with the rescue boat 200, thereby providing support for the hoisting of the rescue boat 200. During the hoisting process, if it is necessary to adjust the hoisting direction of the rescue boat 200, the servo motor 322 of the steering assembly 320 can be activated. The output shaft of the servo motor 322 drives the gear 323 to rotate. Since the gear 323 meshes with the gear ring 321, the gear ring 321 will rotate accordingly. The bottom of the gear ring 321 is rotatably connected to the top of the base 311 through a slewing bearing, so that the support seat 312 rotates horizontally on the base 311, thereby driving the boom 313 located on the top of the support seat 312 to rotate together, so as to realize the flexible adjustment of the hoisting direction of the rescue boat 200. When the rescue boat 200 is lowered to near the water surface, the second hydraulic cylinder 414 is activated again. Its output end extends and drives the support rod 413 to rotate downward, gradually releasing the support for the rescue boat 200, allowing the rescue boat 200 to enter the water smoothly. Throughout the entire lowering process, the cooperation between the slide rail 417 and the roller 418 ensures the stability of the support plate 411 during the lifting and lowering process, effectively preventing the support plate 411 from shifting, thereby ensuring the safety and stability of the lowering operation of the rescue boat 200.

[0028] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0029] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A single-point hoisting device for preventing swaying of a semi-enclosed rescue workboat, characterized in that: include, Rescue boat (100); A rescue boat (200) is located on one side of the deck of the rescue vessel (100); The launching mechanism (300) includes a launching assembly (310) for launching the rescue boat (200) and a steering assembly (320) for adjusting the launching direction. The lifting mechanism (400) includes a support assembly (410) for lifting and lowering the rescue boat (200), and a second electric hoist (420) for raising and lowering the support assembly (410), and the second electric hoist (420) is fixed to one side of the deck of the rescue vessel (100) by a bracket. The support assembly (410) includes a support plate (411), columns (412) fixed to the top two sides of the support plate (411), support rods (413) located on the front two sides of the support plate (411), a second hydraulic cylinder (414) located on the surface of the column (412), a connecting plate (415) for connecting the support rod (413), a fixing seat (416) for fixing the second hydraulic cylinder (414), slide rails (417) located on both sides of the support plate (411), and rollers (418) slidably connected to the inner cavity of the slide rails (417).

2. The anti-sway single-point hoisting device for the semi-enclosed rescue workboat as described in claim 1, characterized in that: The hoisting assembly (310) includes a base (311), a support seat (312) located on top of the base (311), a boom (313) located on top of the support seat (312), a first hydraulic cylinder (314) for supporting the boom (313), and a first electric hoist (315) fixed to the top of the boom (313).

3. The anti-sway single-point hoisting device for the semi-enclosed rescue workboat as described in claim 2, characterized in that: One end of the first hydraulic cylinder (314) is movably connected to the support base (312) via a movable pin, and the output end of the first hydraulic cylinder (314) is movably connected to the boom (313) via a movable pin. The boom (313) is movably connected to the support base (312) via a movable pin.

4. The anti-sway single-point hoisting device for the semi-enclosed rescue workboat as described in claim 3, characterized in that: The steering assembly (320) is located between the base (311) and the support (312). The steering assembly (320) includes a gear ring (321) located at the bottom of the support (312), a servo motor (322) fixed to the surface of the support (312), and a gear (323) located at the bottom of the support (312) and meshing with the gear ring (321).

5. The anti-sway single-point hoisting device for the semi-enclosed rescue workboat as described in claim 4, characterized in that: The output shaft of the servo motor (322) is connected to the gear (323) for transmission, and the bottom of the gear ring (321) is rotatably connected to the top of the base (311) through a slewing bearing.

6. The anti-sway single-point hoisting device for the semi-enclosed rescue workboat as described in claim 1, characterized in that: The slide rail (417) is fixed on both sides of the hull of the rescue boat (100). The support plate (411) is located between the two slide rails (417). The roller (418) is rotatably connected to the support plate (411) through a rotating shaft. The output end of the second hydraulic cylinder (414) is movably connected to the support rod (413) through a movable pin. The tail end of the second hydraulic cylinder (414) is movably connected to the fixed seat (416) through a movable pin. The fixed seat (416) is fixed to the surface of the column (412). The connecting plate (415) is fixedly connected to the support plate (411). The support rod (413) is movably connected to the connecting plate (415) through a movable pin.

7. The anti-sway single-point hoisting device for the semi-enclosed rescue workboat as described in claim 2, characterized in that: The first electric hoist (315) and the second electric hoist (420) are both composed of a winch, a drive motor, a wire rope and a hook. The first electric hoist (315) is movably connected to the rescue boat (200) through the wire rope and the hook, and the second electric hoist (420) is movably connected to the support plate (411) through the wire rope and the hook.

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