Underwater installation lifting hook with fixing lock pin

Abstract

The lifting hook comprises a lifting hook body, a lifting lug is arranged on the upper portion of the lifting hook body, an arc-shaped extending section is arranged at the tail end of the lifting hook body, a spring clamping piece is arranged at the opening position of the lifting hook body, an ROV pull ring is arranged in the middle of the lifting hook body, and a fixing lock pin is arranged in the lifting hook body. The ROV pull ring comprises a clamping ring and a pull ring body arranged on the clamping ring, pull rope guide rings are symmetrically arranged on the two sides of the ROV pull ring, a floating ball pull rope sequentially penetrates through a spring clamping piece and the pull rope guide rings, a floating ball is arranged at the other end of the floating ball pull rope, and a fixing lock pin is arranged on one side of the spring clamping piece. The mooring chain link installation device is simple in structure and convenient to operate, through cooperation of the spring clamping piece, the fish-shaped lock pin, the ROV pull ring, the floating ball pull rope and other assemblies, operation convenience of an underwater robot is achieved, the mooring chain link installation stability is improved, and batch production can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mooring chain accessories for mooring chains of offshore oil platforms and wind power platforms, in particular to an underwater installation hook with a fixed locking pin. Background Art

[0002] The ROV hooks used on offshore oil platforms and wind power platforms have the technical characteristics of high strength and toughness. After heat treatment, the ROV hooks should meet the relevant requirements of the classification society in terms of appearance and internal quality according to manufacturing requirements. In the mooring devices of offshore oil platforms and wind power platforms, due to the large depth of seawater, it is not realistic to manually dive and install the connecting parts of the chain links. At this time, deep-sea robots are required to install such chain links, so it is necessary to simplify the installation method of the connecting accessories. Due to the limited flexibility of the manipulator of the underwater robot, its ability to perform complex motion operations is relatively poor. The underwater ROV installation structure of the prior art is complex, which is not conducive to ROV operations, and the mooring chain connection is not stable enough. Therefore, a design is needed to ensure the stability of the mooring chain connection while taking into account the convenience of operation of the underwater robot. Summary of the invention

[0003] The utility model aims to solve the above-mentioned technical problems and provides an underwater installation hook with a fixed locking pin, which can meet the connection performance and use performance requirements and is more convenient to operate, thus having great practical value.

[0004] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the utility model is: an underwater installation hook with a fixed locking pin, comprising a hook body, a lifting ear is arranged on the upper part of the hook body, and an arc-shaped extension section is arranged at the end of the hook body, characterized in that: a spring card is arranged at the opening part of the hook body, and an ROV pull ring is arranged in the middle part of the hook body, the ROV pull ring includes a clamping ring and a pull ring arranged on the clamping ring, and rope guide rings are symmetrically arranged on both sides of the ROV pull ring, and the float rope passes through the spring card and the rope guide ring in turn, and a float is arranged at the other end, and a fixed locking pin is arranged on one side of the spring card.

[0005] Preferably, a step is provided on the hook body, and the clamping ring is located at the step.

[0006] Preferably, the clamping ring is configured as a frame structure, and the pull ring is configured as a waist shape.

[0007] Preferably, the upper end of the spring clip is movably connected to the hook body.

[0008] Preferably: a U-shaped groove is provided in the middle of the front end of the spring card, and card slots are symmetrically provided on both sides of the extension section, and the front end of the spring card is arranged in the card slot.

[0009] Preferably, the fixing lock pin is threadedly connected to the spring card.

[0010] Preferably, the fixed locking pin is configured as a fish-shaped locking pin.

[0011] Preferably: a pin hole is provided on the hook body at a position corresponding to the fixed locking pin.

[0012] Compared with the traditional structure, the utility model has the following beneficial effects:

[0013] 1. The utility model has a simple structure and is easy to operate. Through the cooperation of components such as a spring card, a fish-shaped lock pin, an ROV pull ring, and a float rope, the convenience of underwater robot operation is achieved, the stability of the mooring chain link installation is improved, and mass production is possible.

[0014] 2. The utility model has high strength and stable connection. It adopts a hook structure to effectively hook the chain links to be connected during the installation process, and has a high load-bearing capacity to ensure stable connection strength.

[0015] 3. By setting the float rope and rope guide ring, the operation of the ROV underwater robot in a complex environment is facilitated, ensuring that the spring card always rotates in the direction of the guide ring, thereby improving work efficiency; by setting the fish-shaped lock pin, it is convenient for the manipulator to operate and rotate the fixed spring card to an open or closed state; the design of the slot in the arc-shaped extension section of the hook ensures the stability of the connection between the spring card and the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 This is the front view of the utility model;

[0019] Figure 4 It is the right view of the utility model;

[0020] Figure 5 It is the left view of the utility model;

[0021] In the figure: 1. hook body, 11. lifting ear, 12 extension section, 13. slot, 14. step, 15. pin hole, 2. pull rope guide ring, 3. float pull rope, 4. ROV pull ring, 41. snap ring, 42. pull ring, 5. spring card, 51. U-shaped groove, 6. fixed locking pin. DETAILED DESCRIPTION

[0022] The utility model is further described below.

[0023] Referring to the accompanying drawings, an underwater installation hook with a fixed locking pin includes a hook body 1, a lifting ear 11 is provided on the upper part of the hook body 1, and an arc-shaped extension section 12 is provided at the end of the hook body 1. It is characterized in that: a spring card 5 is provided at the opening part of the hook body 1, and an ROV pull ring 4 is provided in the middle part of the hook body 1. The ROV pull ring 4 includes a clamping ring 41 and a pull ring 42 arranged on the clamping ring. Draw rope guide rings 2 are symmetrically provided on both sides of the ROV pull ring 4. The float rope 3 passes through the spring card 5 and the draw rope guide ring 2 in turn, and a float is provided at the other end. A fixed locking pin 6 is provided on one side of the spring card 5.

[0024] In this preferred embodiment, a step 14 is provided on the hook body 1 , and the clamping ring 41 is located at the step 14 .

[0025] In this preferred embodiment, the clamping ring 41 is configured as a frame structure, and the pull ring 42 is configured as a waist shape.

[0026] In this preferred embodiment, the upper end of the spring clip 5 is movably connected to the hook body 1 .

[0027] In this preferred embodiment, a U-shaped groove 51 is provided in the middle of the front end of the spring card 5 , and slots 13 are symmetrically provided on both sides of the extension section 12 , and the front end of the spring card 5 is disposed in the slots 13 .

[0028] In this preferred embodiment, the fixed locking pin 6 is threadedly connected to the spring clip 5 .

[0029] In this preferred embodiment, the fixed locking pin 6 is configured as a fish-shaped locking pin.

[0030] In this preferred embodiment, a pin hole 15 is provided on the hook body 1 at a position corresponding to the fixed locking pin 6 .

[0031] During specific implementation, the installation method of the utility model is as follows:

[0032] 1) On an offshore oil platform, wind power platform or auxiliary installation vessel, connect the hook to the upper chain link through a connecting shackle, then use the crane of the installation vessel to hoist the installed hook into the sea water, and use an underwater robot to guide the hook to the vicinity of the underwater bottom chain link.

[0033] 2) The manipulator of the underwater robot is operated to grasp the ROV pull ring 4 on the hook, and another manipulator is used to rotate the fish-shaped lock pin fixed on the spring card 5 to the open state.

[0034] 3) Operate the manipulator of the underwater robot to grasp the ROV pull ring 4 on the hook, and use another manipulator to pull the float rope 3 to operate the spring card 5 to open, ensuring that the opening can put the bottom chain ring on the hook.

[0035] 4) Operate and rotate the fish-shaped lock pin fixed on the spring card 5 to the closed state.

[0036] 5) Use the underwater robot to guide the hook and hook the bottom chain. Operate and rotate the fish-shaped lock pin fixed on the spring card to the open state, release the float rope 3, and the spring card 5 is reset to the closed state under the action of the spring elastic force. Operate and rotate the fish-shaped lock pin fixed on the spring card to the closed state to complete the installation.

[0037] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A hook for underwater installation with a fixed locking pin, comprising a hook body (1), a lifting lug (11) being arranged on the upper part of the hook body (1), and an arc-shaped extension section (12) being arranged at the end of the hook body (1), characterized in that: The hook body (1) is provided with a spring card (5) at the opening portion, and the hook body (1) is provided with an ROV pull ring (4) in the middle portion. The ROV pull ring (4) comprises a clamping ring (41) and a pull ring (42) arranged on the clamping ring. Draw rope guide rings (2) are symmetrically arranged on both sides of the ROV pull ring (4). The float rope (3) passes through the spring card (5) and the draw rope guide ring (2) in sequence, and a float is arranged at the other end. A fixed locking pin (6) is arranged on one side of the spring card (5).

2. The underwater installation hook with a fixed locking pin according to claim 1, characterized in that: The hook body (1) is provided with a step (14), and the clamping ring (41) is located at the step (14).

3. The underwater installation hook with a fixed locking pin according to claim 1, characterized in that: The clamping ring (41) is configured as a frame-type structure, and the pull ring (42) is configured as a waist shape.

4. The underwater installation hook with a fixed locking pin according to claim 1, characterized in that: The upper end of the spring clip (5) is movably connected to the hook body (1).

5. The underwater installation hook with a fixed locking pin according to claim 1, characterized in that: A U-shaped groove (51) is provided in the middle of the front end of the spring card (5), and card slots (13) are symmetrically provided on both sides of the extension section (12), and the front end of the spring card (5) is arranged in the card slot (13).

6. The underwater installation hook with a fixed locking pin according to claim 1, characterized in that: The fixed lock pin (6) is threadedly connected to the spring card (5).

7. An underwater installation hook with a fixed locking pin according to claim 1 or 6, characterized in that: The fixed lock pin (6) is configured as a fish-shaped lock pin.

8. The underwater installation hook with a fixed locking pin according to claim 1, characterized in that: A pin hole (15) is provided on the hook body (1) at a position corresponding to the fixed locking pin (6).

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