Hook box for fixing hook of offshore large crane
By designing a hook box for fixing the hook of a large offshore crane, using pins and shafts to fix the hook, and combining the rotatable connection between the support body and the deck lugs, the problem of the hook swinging in the wind and waves at sea is solved, and the hook is stably fixed.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国电建集团贵州工程有限公司
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-19
AI Technical Summary
When a hook is suspended in the wind and waves at sea, it is prone to swinging. In the existing technology, the support plate connected to the hook by the chain cannot effectively prevent the swinging.
A hook box for fixing the hook of a large offshore crane was designed. The hook is fixed in the hook box body by a combination of pins and pin shafts. Combined with the rotatable connection between the support body and the deck lugs, the hook can be controlled to rotate or be restricted to prevent swinging.
It effectively prevents the hook from swinging in the wind and waves at sea, ensures the stability of the hook in the hook box, and avoids the swinging problem when the hook is connected to the chain.
Smart Images
Figure CN224377456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a hook box for fixing the hook of a large offshore crane, belonging to the technical field of auxiliary equipment for offshore wind power construction. Background Technology
[0002] The hook is a crucial component in offshore lifting operations, connecting the crane to the load. To ensure sufficient strength and durability under load, hooks are typically made of high-strength steel and are extremely heavy. Components such as towers, wind turbines, and blades are connected to the floating structure / jacket structure during lifting operations. After the lifting operation is completed or during towing, the hook, connected to the lifting cable, is suspended in the air, making it susceptible to swaying or even detachment due to sea conditions and waves.
[0003] Existing technologies for fixing hooks are described in Chinese Patent Publication No. CN218809844U. Although the hook can be lowered and hooked onto the connecting rod for a limited position, the support plate for mounting the connecting rod is connected by a chain. Under the influence of sea waves, the hook hanging on the connecting rod will swing with the chain. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a hook box for fixing the hook of a large marine crane.
[0005] This utility model is achieved through the following technical solution.
[0006] This utility model provides a hook box for fixing the hook of a large offshore crane, comprising:
[0007] The hook box body is designed to accommodate the hook in a controllable rotation or controllable limiting state.
[0008] It also includes a support frame that is fixed to the deck during installation. The support frame consists of two spaced-apart frames located on both sides of the hook box body. The support frame is rotatably connected to the two sides of the hook box body by pins. The interior of the hook box body is hollow and accommodates the hook.
[0009] It also includes deck lugs fixed on the deck. The bottom of the hook box body is provided with lugs. Both the lugs and the deck lugs are provided with through holes and are connected by pins. The hook box body is restricted by pins at the top and by pins at the bottom.
[0010] The hook box body has a hollow planar opening, and a support sill plate is located at the bottom of the planar opening. A pin cylinder for the hook to be hooked is passed through the hook box body at the support sill plate.
[0011] The hook box body at the pin cylinder is reinforced with an L-shaped reinforcing rib; the bottom of the hook box body is reinforced with a triangular brace on the outer side.
[0012] The hook box body is equipped with a flat pad and an inclined pad.
[0013] The hook box body has a side panel, and a trapezoidal strip is installed on the outside of the side panel.
[0014] The hook box body is provided with an observation hole and a hollowed-out opening.
[0015] The support body has a T-shaped steel rib, lifting lugs, a support hollow hole, a pin screw hole, and a side guard plate. The support hollow hole is opened on the support T-shaped steel rib, and the pin screw hole is for the pin to be screwed through, so that the support body and the hook box body can be rotatably connected.
[0016] The beneficial effects of this utility model are as follows: After the hook enters the hollow interior of the hook box body and reaches the support sill, the pin cylinder is inserted through the hook box body, and the hook hooks the pin cylinder, so that the hook is inside the hook box body. The upper and lower parts of the hook box body are restricted from rotating by pins and pin shafts. With the hook in the restricted state inside the hook box body, the hook will not swing inside the hook box body under the influence of sea waves, thus solving the problem that the hook will swing with the chain when it is hanging on the connecting rod. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of the hook box body and the support body of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the hook box body of this utility model;
[0019] Figure 3 This is a top view of the hook box body of this utility model;
[0020] Figure 4 This is a front view schematic diagram of the support body of this utility model; Detailed Implementation
[0021] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.
[0022] like Figures 1 to 4 As shown.
[0023] This application discloses a hook box for fixing the hook of a large offshore crane, comprising:
[0024] The hook box body 1 is used to accommodate the hook of a large offshore crane. The interior of the hook box body 1 is hollow.
[0025] It also includes a support body 2 that is screwed to the hook box body 1 by pins 17. The support body 2 consists of two spaced supports welded to the deck. The two support bodies 2 are rotatably connected to the sides of the hook box body 1 by pins 17, so that the bottom of the hook box body 1 does not contact the deck.
[0026] It also includes deck lugs (not shown in the figure) fixed to the deck. The bottom of the hook box body 1 is provided with lugs 19. Both lugs 19 and deck lugs are provided with through holes for connecting pins to pass through. The hook box body 1 is restricted at the top by pins 17 and at the bottom by pins. At this time, the hook box body 1 can no longer rotate. This allows the hook box body 1 to be controlled to rotate or be controlled to be restricted to accommodate the hook.
[0027] The hook box body 1 has a hollow planar opening 115. At the bottom of the planar opening 115, the hook box body 1 has a support sill 117. The hook box body 1 at the support sill 117 has a pin cylinder 118 for the hook to be hooked through. The hook box body 1 has a pin hole for the pin cylinder 118 to pass through.
[0028] The hook box body 1 at pin cylinder 118 is reinforced by L-shaped reinforcing ribs 111; the bottom of the hook box body 1 is reinforced on the outer side by triangular braces 112.
[0029] The hook box body 1 is equipped with a flat pad 16 and an inclined pad 113. When the hook and pulley block are lowered into the hook box body 1, the flat pad 16 and the inclined pad 113 provide a guide to the flat opening 115 onto the support sill 117, thereby reducing the swaying of the hook when it is lowered into the hook box body 1.
[0030] The hook box body 1 has a side panel 14, and trapezoidal strips 15 are installed on the outside of the side panel 14 for structural reinforcement.
[0031] The hook box body 1 is provided with an observation hole 13 and a hollow opening 114, through which the interior of the hook box body 1 can be observed.
[0032] The support body 2 includes a T-shaped steel rib 21, lifting lugs 22, support perforated holes 23, pin screw holes 24, and side guard plates 25. The perforated holes 22 are formed on the T-shaped steel ribs 21 to reduce wind resistance and weight. The pin screw holes 24 allow pins 17 to be screwed through to secure the support body 2 to the hook box body 1. The lifting lugs 22 facilitate the hoisting of the support body 2 to the installation position.
[0033] The hook box body 1 is rotatably connected to two support bodies 2 on the deck via pins 17. The hook box body 1 can be rotated to adjust the tilt angle to align with the hook. After the hook enters the hollow interior of the hook box body 1 through the planar opening 115 and reaches the support sill 117, the pin cylinder 118 is inserted through the hook box body 1. The hook catches the pin cylinder 118, so that the hook is inside the hook box body 1. The hook box body 1 is restricted by the pins 17 at the top and by the pin shaft at the bottom, so the hook box body 1 can no longer rotate. The hook is in the restricted state inside the hook box body 1. Under the influence of sea wind and waves, the hook will not swing inside the hook box body 1, which solves the problem that the hook will swing with the chain when it is hanging on the connecting rod.
Claims
1. A hook box for fixing the hook of a large offshore crane, characterized in that, include: The hook box body (1) is designed to accommodate the hook in a controllable rotation or controllable restriction state.
2. The hook box for fixing the hook of a large offshore crane as described in claim 1, characterized in that: It also includes a support body (2) that is fixed on the deck during installation. The support body (2) consists of two spaced-apart supports on both sides of the hook box body (1). The support body (2) is rotatably connected to both sides of the hook box body (1) by pins (17). The hook box body (1) is hollow inside to accommodate the hook.
3. The hook box for fixing the hook of a large offshore crane as described in claim 2, characterized in that: It also includes deck lugs fixed on the deck. The bottom of the hook box body (1) is provided with lugs (19). Both the lugs (19) and the deck lugs are provided with through holes and are connected by pins. The hook box body (1) is restricted above by pins (17) and restricted below by pins.
4. The hook box for fixing the hook of a large offshore crane as described in claim 3, characterized in that: The hook box body (1) has a hollow planar opening (115), and the hook box body (1) at the bottom of the planar opening (115) has a support sill plate (117), and the hook box body (1) at the support sill plate (117) has a pin cylinder (118) for the hook to be hooked through.
5. The hook box for fixing the hook of a large offshore crane as described in claim 4, characterized in that: The hook box body (1) at the pin cylinder (118) is reinforced by an L-shaped reinforcing rib (111); the bottom of the hook box body (1) is reinforced by a triangular brace (112) on the outer side.
6. The hook box for fixing the hook of a large offshore crane as described in claim 4, characterized in that: The hook box body (1) is equipped with a flat pad (16) and an inclined pad (113).
7. The hook box for fixing the hook of a large offshore crane as described in claim 4, characterized in that: The hook box body (1) has a side panel (14), and a trapezoidal strip (15) is installed on the outside of the side panel (14).
8. The hook box for fixing the hook of a large offshore crane as described in claim 4, characterized in that: The hook box body (1) is provided with an observation hole (13) and a hollow opening (114).
9. The hook box for fixing the hook of a large offshore crane as described in claim 2, characterized in that: The support body (2) has a support T-shaped steel rib (21), a lifting lug (22), a support hollow hole (23), a pin screw hole (24), and a side guard plate (25). The support hollow hole (2) is opened on the support T-shaped steel rib (21), and the pin screw hole (24) is for the pin (17) to be screwed through, so that the support body (2) and the hook box body (1) can be rotatably connected.