Lifting hook clamping plate device of marine manned crane

Abstract

The lifting hook clamping plate device of the marine manned crane comprises a mounting ring, a mounting plate connected to the bottom of the mounting ring, a lifting hook connected to the outer side of the mounting plate, an anti-falling mechanism connected between the mounting plate and the lifting hook, and a locking mechanism arranged on the outer side of the lifting hook. The utility model aims to solve the problems of safety, reliability and applicability of the lifting hook of the marine crane in the prior art, and the safety guarantee level in the manned operation process is obviously improved through the creatively designed anti-falling mechanism and locking mechanism.

Description

Technical Field

[0001] The utility model belongs to the field of marine lifting equipment, in particular to a hook clamping plate device of a marine manned crane. Background Art

[0002] Marine manned cranes are mechanical devices specifically designed for use on offshore platforms, vessels, and marine engineering projects to safely transfer personnel from one location to another. These cranes must not only meet the functional requirements of conventional cargo handling but also possess exceptional safety and reliability to safeguard personnel during operation. They play an indispensable role in scenarios such as oil drilling platforms, offshore wind farm construction, and ship maintenance.

[0003] Common marine crane hooks currently on the market do not clearly distinguish whether they are suitable for transporting passengers or only cargo. While this universal design simplifies manufacturing and reduces costs, it presents potential safety hazards in specific applications. Most existing marine crane hooks are equipped with relatively small safety latches that rely primarily on spring tension for locking. When lifting heavy objects, external forces acting on the wire rope enclosed in the hook can cause the safety latch to fail, potentially causing the object to fall. In light of these safety hazards, several authoritative international classification societies have mandated the use of specialized hooks that meet higher safety standards when transporting personnel. These regulations specifically emphasize that safety devices on passenger hooks should not rely solely on spring tension to maintain closure; instead, more robust mechanical structures or other methods should be employed to ensure a stable connection even in the event of unexpected impact. Utility Model Content

[0004] The utility model aims to provide a hook clamp device for a ship-mounted manned crane, so as to solve the technical problem of preventing a rope from slipping out of the hook when performing a high-risk manual transfer task.

[0005] To achieve the above-mentioned purpose, the specific technical solution of the hook clamp device of a marine manned crane of the present invention is as follows:

[0006] A hook clamp device for a marine manned crane comprises a mounting ring, a mounting plate connected to the bottom of the mounting ring, a hook connected to the outside of the mounting plate, an anti-slip mechanism connected between the mounting plate and the hook, and a locking mechanism arranged on the outside of the hook;

[0007] The anti-slip mechanism includes a cross bar fixed to the inner side of the hook, a tooth plate movably sleeved on the outer side of the cross bar, and two bottom plates symmetrically fixedly connected to the bottom of the mounting plate. The tooth plate is located between the two bottom plates, and a connecting shaft located below the tooth plate is rotatably connected between the two bottom plates. A sleeve is fixedly installed on the outer side of the connecting shaft, and an external gear is fixedly installed on the outer side of the sleeve. The external gear is meshed with the tooth plate, and a clamping plate is fixedly installed on the outer side of the sleeve. A clamping slot is provided on the inner side of the hook, and the clamping plate is inserted into the clamping slot. A slider three is movably sleeved on the outer side of the hook, and a connecting frame is fixedly connected to the outer side of the slider three. An arc-shaped splint is fixedly connected to the bottom of the connecting frame, and an outer ring located above the slider three is fixedly sleeved on the outer side of the hook. A spring one is fixedly connected between the outer ring and the slider three, and a set of springs is arranged on the outer side of the hook;

[0008] The bottom of the mounting plate is fixedly connected to a bottom block, one end of the cross bar away from the hook is fixedly connected to the bottom block, a second spring is fixedly connected between the tooth plate and the bottom block, the second spring is sleeved on the outer side of the cross bar, the top of the tooth plate is fixedly connected to the second limit block, the bottom of the mounting plate is provided with a second limit groove, and the second limit block is slidably connected to the second limit groove;

[0009] The outer side of the hook is provided with a limiting groove 1, the inner side of the slider 3 is fixedly connected to the limiting block 1, and the limiting block 1 is slidably connected to the limiting groove 1;

[0010] The locking mechanism includes a mounting frame fixed to the outside of the hook, and two guide columns are symmetrically fixedly connected to the outside of the mounting frame. The two guide columns are fixedly connected to a side block at one end away from the mounting frame. The outsides of the two guide columns are movably sleeved with guide blocks, and the two guide blocks are respectively abutted against the two side blocks. The bottoms of the two guide blocks are fixedly connected to a plug rod, and the slider 1 is located between the two plug rods. Two holes are symmetrically provided on the outside of the slider 1, and the inner diameter values ​​of the two holes are equal to the outer diameter values ​​of the two plug rods.

[0011] As a further improvement of the present invention, the tooth plate is fixedly connected to a slider one on the side away from the bottom block, the slider one is movably sleeved on the outside of the cross bar, the bottom of the slider one is rotatably connected to the movable rod one, the outside of the hook is movably sleeved with the slider two located below the slider three, the bottom end of the movable rod one is rotatably connected to the outside of the slider two, and the movable rod one passes through the connecting frame.

[0012] As a further improvement of the present invention, a U-shaped round rod is fixedly connected to the top of the mounting frame, a lifting plate is movably sleeved on the outer side of the U-shaped round rod, a driving assembly is provided under the lifting plate, and two movable rods 2 are symmetrically rotatably connected to the outer side of the lifting plate, and the two movable rods 2 are rotatably connected to the two guide blocks at one end away from the lifting plate.

[0013] As a further improvement of the present invention, a lifting plate located above the lifting plate is movably sleeved on the outer side of the U-shaped round rod, and two connecting rods are symmetrically fixedly connected between the lifting plate and the connecting frame.

[0014] As a further improvement of the present invention, a sleeve block is fixedly sleeved on the middle part of the outer side of the U-shaped round rod, a screw is fixedly connected between the sleeve block and the mounting frame, the lifting plate and the lifting plate are both sleeved on the outer side of the screw and do not contact the screw, the outer side of the screw is threadedly sleeved with a screw barrel 2 located above the lifting plate, and a handwheel 2 is fixedly installed on the outer side of the screw barrel 2.

[0015] As a further improvement of the present invention, the drive assembly includes a screw barrel that is threadedly sleeved on the outside of the screw, a handwheel is fixedly installed on the outside of the screw barrel, a bottom ring is fixedly connected to the bottom of the lifting plate, the bottom ring is sleeved on the outside of the screw and does not contact the screw, and a plurality of top columns are fixedly connected at equal angles to the top of the screw barrel, and a ball is installed on the top of each top column below the bottom ring.

[0016] Beneficial effects:

[0017] This new model features a unique anti-drop mechanism, including a crossbar, toothed plate, connecting shaft, and external gear. This prevents the hook from falling even when the wire rope or other load is subjected to an unexpected impact. The meshing connection between the external gear and toothed plate, combined with the action of the spring, effectively prevents the hook from opening, even under high loads.

[0018] The cooperation between the slider 3 and the hook, as well as the spring 1 and the outer ring, facilitates the connection frame to drive the arc-shaped clamping plate to descend and clamp the hanging basket rope, and the cooperation between the tooth plate and the cross bar, as well as the spring 2 and the outer gear, facilitates the rotation of the sleeve, so that the clamping plate can be rotated and clamped in the clamping groove, and then the hanging basket rope can be further limited, thereby preventing the hanging basket rope from slipping. The cooperation between the screw barrel 2 and the screw, as well as the lifting plate and the connecting rod, facilitates the connection frame to be limited to prevent the arc-shaped clamping plate from rising, thereby facilitating the stable clamping of the hanging basket rope. The cooperation between the screw barrel 1 and the screw, as well as the top column and the ball, facilitates the upward push of the bottom ring, so that the lifting plate can slide upward along the U-shaped round rod, and the cooperation between the movable rod 2 and the guide block and the guide column facilitates the two plug rods to be inserted into the two sockets respectively to clamp and limit the slider 1, thereby preventing the clamping plate from rotating under the action of external force, thereby ensuring that the hanging basket rope can always be hung in the hook.

[0019] The locking mechanism on the hook's exterior, which precisely mates the rod with the socket on the slider, further strengthens the stability of the entire system. This dual-layer safety mechanism not only increases the success rate of a single operation, but also significantly reduces the risk of safety accidents caused by equipment failure.

[0020] Given that many ordinary hooks on the current market cannot meet the high standards required for manned use, this utility model is designed strictly in accordance with the relevant regulations of international classification societies, with particular emphasis on a safety clip structure that does not rely on a single spring tension, thereby ensuring that it fully complies with the regulatory requirements for manned hooks.

[0021] Whether in adverse weather conditions or complex and changing working environments, the device can demonstrate good adaptability. Its compact design makes it suitable for various types of ships and offshore platforms, providing users with a more flexible option.

[0022] The provision of handwheels one and two simplifies manual adjustment, allowing the operator to easily control the locking status; while the lifting plate mounted on the U-shaped round rod provides additional operational convenience, which is particularly important in situations requiring quick response. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a hook clamp device for a ship-mounted manned crane according to the present utility model;

[0024] Figure 2 It is a schematic diagram of the anti-slip mechanism structure;

[0025] Figure 3 Schematic diagram of the crossbar structure;

[0026] Figure 4 Schematic diagram of the hook structure;

[0027] Figure 5 Schematic diagram of the locking mechanism structure;

[0028] Figure 6 It is a schematic diagram of the U-shaped round rod structure;

[0029] Figure 7 Schematic diagram of the drive component structure;

[0030] Explanation of the marks in the figure: 1. Mounting ring; 2. Anti-slip mechanism; 201. Crossbar; 202. Tooth plate; 203. Clamping plate; 204. Arc-shaped splint; 205. Connecting frame; 206. Spring 1; 207. Outer ring; 208. Slider 1; 209. Bottom plate; 2010. Connecting shaft; 2011. Bottom block; 2012. Spring 2; 2013. Outer gear; 2014. Slider 2; 2015. Limit block 1; 2016. Slider 3; 2017. Movable rod 1; 2018. Sleeve; 2019. Slot; 2020. Limit slot 1; 2021. Limit slot 2; 202 2. Limit block 2; 3. Locking mechanism; 301. Mounting frame; 302. Drive assembly; 3021. Screw barrel 1; 3022. Top column; 3023. Ball bearing; 3024. Handwheel 1; 303. Lifting plate; 304. Lifting plate; 305. U-shaped round rod; 306. Movable rod 2; 307. Guide block; 308. Insert rod; 309. Socket; 3010. Connecting rod; 3011. Side block; 3012. Guide column; 3013. Bottom ring; 3014. Screw; 3015. Handwheel 2; 3016. Bushing block; 3017. Screw barrel 2; 4. Mounting plate; 5. Hook. DETAILED DESCRIPTION

[0031] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0032] Implementation example:

[0033] like Figure 1 The hook clamp device of a ship-mounted manned crane shown in the figure includes a mounting ring 1, a mounting plate 4 is fixedly mounted on the bottom of the mounting ring 1, a hook 5 is fixedly mounted on the outside of the mounting plate 4, an anti-slip mechanism 2 is provided between the mounting plate 4 and the hook 5, and a locking mechanism 3 is provided on the outside of the hook 5.

[0034] The anti-slip mechanism 2 includes a cross bar 201 fixed to the inner side of the hook 5, a tooth plate 202 is movably sleeved on the outer side of the cross bar 201, and two bottom plates 209 are symmetrically fixedly connected to the bottom of the mounting plate 4. The tooth plate 202 is located between the two bottom plates 209. A connecting shaft 2010 located below the tooth plate 202 is rotatably connected between the two bottom plates 209. A sleeve 2018 is fixedly installed on the outer side of the connecting shaft 2010, and an external gear 2013 is fixedly installed on the outer side of the sleeve 2018. The external gear 2013 is meshed with the tooth plate 202. A card plate 203 is fixedly installed on the outer side of the sleeve 2018. A card slot 2019 is provided on the inner side of the hook 5. , the card plate 203 is inserted into the card slot 2019, the outer side of the hook 5 is movably connected with the slider three 2016, the outer side of the slider three 2016 is fixedly connected with the connecting frame 205, the bottom of the connecting frame 205 is fixedly connected with the arc-shaped splint 204, the outer side of the hook 5 is fixedly connected with the outer ring 207 located above the slider three 2016, and a spring 1 206 is fixedly connected between the outer ring 207 and the slider three 2016. The spring 1 206 is sleeved on the outer side of the hook 5, and the bottom of the mounting plate 4 is fixedly connected with the bottom block 2011. The end of the cross bar 201 away from the hook 5 is fixedly connected to the bottom block 2011, and the tooth plate 202 is fixedly connected to the bottom block 2011. A spring 2012 is fixedly connected between the tooth plate 202 and the cross bar 201. The spring 2012 is sleeved on the outside of the cross bar 201. The top of the tooth plate 202 is fixedly connected to the limit block 2022. The bottom of the mounting plate 4 is provided with a limit groove 2021. The limit block 2022 is slidably connected to the limit groove 2021. When the tooth plate 202 slides along the cross bar 201, it drives the limit block 2022 to slide in the limit groove 2021 to ensure the stability of the tooth plate 202 when sliding. A limit groove 2020 is provided on the outside of the hook 5. The inner side of the slider 3 2016 is fixedly connected to the limit block 1 2015. The limit block 1 2015 and the limit groove 1 2020 are fixedly connected. Sliding connection, when the slider three 2016 slides along the hook 5, it drives the limit block 1 2015 to slide in the limit groove 1 2020, ensuring the stability of the slider three 2016 when sliding. The side of the tooth plate 202 away from the bottom block 2011 is fixedly connected to the slider one 208, the slider one 208 is movably sleeved on the outer side of the cross bar 201, and the bottom of the slider one 208 is rotatably connected to the movable rod one 2017. The outer side of the hook 5 is movably sleeved with the slider two 2014 located below the slider three 2016. The bottom end of the movable rod one 2017 is rotatably connected to the outer side of the slider two 2014, and the movable rod one 2017 passes through the connecting frame 205;

[0035] First, push the card plate 203 to separate it from the card slot 2019, drive the sleeve 2018 and the connecting shaft 2010 to rotate, and drive the outer gear 2013 to rotate. Since the outer gear 2013 is meshed with the tooth plate 202, the tooth plate 202 is driven to slide along the cross bar 201 and approach the bottom block 2011. At this time, the spring 2012 is compressed, and the slider 1 208 slides along the cross bar 201, and drives the slider 2 2014 to slide upward along the hook 5 through the movable rod 1 2017. When the slider 2 2014 contacts the slider 3 2016, it continues to rise, pushing the slider 3 2016 upward. At this time, the spring 1 At this time, the arc splint 204 moves downward under the elastic force of the spring 1 206 to clamp the hanging basket rope, further limiting the hanging basket rope and finally preventing the hanging basket rope from slipping.

[0036] The locking mechanism 3 includes a mounting frame 301 fixed to the outside of the hook 5, and two guide columns 3012 are symmetrically fixedly connected to the outside of the mounting frame 301, and the two guide columns 3012 are fixedly connected to the side blocks 3011 at one end away from the mounting frame 301, and the outsides of the two guide columns 3012 are movably sleeved with guide blocks 307, and the two guide blocks 307 are respectively abutted against the two side blocks 3011, and the bottoms of the two guide blocks 307 are fixedly connected with plug rods 308, and the slider 208 is located between the two plug rods 308. Two sockets 309 are symmetrically provided on the outside of the slider 208, and the inner diameter values ​​of the two sockets 309 are equal to the outer diameter values ​​of the two plug rods 308. A U-shaped round rod 305 is fixedly connected to the top of the mounting frame 301, and a lifting plate 303 is movably sleeved on the outside of the U-shaped round rod 305, and a driving group is provided below the lifting plate 303. Part 302, the outer side of the lifting plate 303 is symmetrically connected to two movable rods 306 for rotation, and the ends of the two movable rods 306 away from the lifting plate 303 are respectively rotatably connected to the two guide blocks 307, the outer side of the U-shaped round rod 305 is movably sleeved with a lifting plate 304 located above the lifting plate 303, and the lifting plate 304 and the connecting frame 205 are symmetrically fixedly connected with two connecting rods 3010, the middle part of the outer side of the U-shaped round rod 305 is fixedly sleeved with a sleeve block 3016, and a screw 3014 is fixedly connected between the sleeve block 3016 and the mounting frame 301, the lifting plate 303 and the lifting plate 304 are both sleeved on the outer side of the screw 3014 and do not contact the screw 3014, the outer side of the screw 3014 is threadedly sleeved with a screw barrel 2 3017 located above the lifting plate 304, and the outer side of the screw barrel 2 3017 is fixedly installed with a hand wheel 2 3015;

[0037] When the hook 314 is in the state of being lifted, the lifting plate 303 is moved downwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards, and the lifting plate 303 is moved upwards,

[0038] The drive assembly 302 includes a barrel 3021 threadedly sleeved on the outside of the screw 3014. A handwheel 3024 is fixedly mounted on the outside of the barrel 3021. The bottom of the lifting plate 303 is fixedly connected to a bottom ring 3013, which sleeves on the outside of the screw 3014 without contacting the screw 3014. The top of the barrel 3021 is fixedly connected to multiple top posts 3022 at equal angles. The top of each top post 3022 is mounted with a ball 3023 located below the bottom ring 3013.

[0039] First, rotate the handwheel 3024 to drive the screw barrel 3021 to rotate. Since the screw barrel 3021 is threadedly sleeved on the outside of the screw rod 3014, the screw barrel 3021 moves upward while rotating. When each ball 3023 abuts against the bottom of the bottom ring 3013, continue to rotate the screw barrel 3021 to make it rise, and push the bottom ring 3013 and the lifting plate 303 upward, finally facilitating the two insertion rods 308 to be respectively inserted into the two insertion holes 309 to limit the slider 208.

[0040] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A hook clamp device for a marine manned crane, characterized in that: It includes a mounting ring, a mounting plate connected to the bottom of the mounting ring, a hook connected to the outside of the mounting plate, an anti-slip mechanism connected between the mounting plate and the hook, and a locking mechanism arranged on the outside of the hook; The anti-slip mechanism includes a cross bar fixed to the inner side of the hook, a tooth plate movably sleeved on the outer side of the cross bar, and two bottom plates symmetrically fixedly connected to the bottom of the mounting plate. The tooth plate is located between the two bottom plates, and a connecting shaft located below the tooth plate is rotatably connected between the two bottom plates. A sleeve is fixedly installed on the outer side of the connecting shaft, and an external gear is fixedly installed on the outer side of the sleeve. The external gear is meshed with the tooth plate, and a clamping plate is fixedly installed on the outer side of the sleeve. A clamping slot is provided on the inner side of the hook, and the clamping plate is inserted into the clamping slot. A slider three is movably sleeved on the outer side of the hook, and a connecting frame is fixedly connected to the outer side of the slider three. An arc-shaped splint is fixedly connected to the bottom of the connecting frame, and an outer ring located above the slider three is fixedly sleeved on the outer side of the hook. A spring one is fixedly connected between the outer ring and the slider three, and a set of springs is arranged on the outer side of the hook; The bottom of the mounting plate is fixedly connected to a bottom block, one end of the cross bar away from the hook is fixedly connected to the bottom block, a second spring is fixedly connected between the tooth plate and the bottom block, the second spring is sleeved on the outer side of the cross bar, the top of the tooth plate is fixedly connected to the second limit block, the bottom of the mounting plate is provided with a second limit groove, and the second limit block is slidably connected to the second limit groove; The outer side of the hook is provided with a limiting groove 1, the inner side of the slider 3 is fixedly connected to the limiting block 1, and the limiting block 1 is slidably connected to the limiting groove 1; The locking mechanism includes a mounting frame fixed to the outside of the hook, and two guide columns are symmetrically fixedly connected to the outside of the mounting frame. The two guide columns are fixedly connected to a side block at one end away from the mounting frame. The outsides of the two guide columns are movably sleeved with guide blocks, and the two guide blocks are respectively abutted against the two side blocks. The bottoms of the two guide blocks are fixedly connected to a plug rod, and the slider 1 is located between the two plug rods. Two holes are symmetrically provided on the outside of the slider 1, and the inner diameter values ​​of the two holes are equal to the outer diameter values ​​of the two plug rods.

2. The hook clamp device of a marine manned crane according to claim 1, characterized in that: The tooth plate is fixedly connected to a slider 1 on the side away from the bottom block, and the slider 1 is movably connected to the outside of the cross bar. The bottom of the slider 1 is rotatably connected to the movable rod 1, and the outside of the hook is movably connected to the slider 2 located below the slider 3. The bottom end of the movable rod 1 is rotatably connected to the outside of the slider 2, and the movable rod 1 passes through the connecting frame.

3. The hook clamp device of a marine manned crane according to claim 1, characterized in that: The top of the mounting frame is fixedly connected to a U-shaped round rod, the outer side of the U-shaped round rod is movably sleeved with a lifting plate, a driving assembly is provided below the lifting plate, the outer side of the lifting plate is symmetrically rotatably connected to two movable rods 2, and the ends of the two movable rods 2 away from the lifting plate are respectively rotatably connected to the two guide blocks.

4. The hook clamp device of a marine manned crane according to claim 3, characterized in that: The outer side of the U-shaped round rod is movably sleeved with a lifting plate located above the lifting plate, and two connecting rods are symmetrically fixedly connected between the lifting plate and the connecting frame.

5. The hook clamp device of a marine manned crane according to claim 3, characterized in that: A sleeve block is fixedly sleeved on the middle part of the outer side of the U-shaped round rod, and a screw rod is fixedly connected between the sleeve block and the mounting frame. The lifting plate and the lifting disk are both sleeved on the outer side of the screw rod and do not contact the screw rod. The outer side of the screw rod is threadedly sleeved with a screw barrel 2 located above the lifting disk, and a hand wheel 2 is fixedly installed on the outer side of the screw barrel 2.

6. The hook clamp device of a marine manned crane according to claim 3, characterized in that: The driving assembly includes a screw barrel that is threadedly sleeved on the outside of the screw, a handwheel is fixedly installed on the outside of the screw barrel, a bottom ring is fixedly connected to the bottom of the lifting plate, the bottom ring is sleeved on the outside of the screw and does not contact the screw, and a plurality of top columns are fixedly connected at equal angles to the top of the screw barrel, and a ball is installed on the top of each top column below the bottom ring.

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