Underwater hoisting seat for ROV (Remote Operated Vehicle) operation

Abstract

The utility model relates to the field of deepwater hoisting, in particular to an underwater hoisting seat for ROV operation, which comprises a flange base, a pair of vertical lug plates fixed on the flange base and a guide sleeve, the pair of vertical lug plates comprises a first vertical lug plate and a second vertical lug plate, the guide sleeve penetrates through and is fixedly connected with the first vertical lug plate, and the guide sleeve is fixedly connected with the second vertical lug plate. A movable plug pin assembly is arranged in the guide sleeve, a connecting hole matched with the plug pin assembly is formed in the second vertical lug plate, and the lifting device can be rapidly matched with the ROV underwater robot and is high in lifting efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep - water hoisting, and particularly relates to an underwater hoisting seat operated by an ROV. Background Technique

[0002] Shackles are often used in deep - water hoisting and connection operations. Generally, the connection and disconnection of sling tools need to be operated by divers or underwater robots. However, diving operations are very difficult when the water depth exceeds 100 meters, and the existing shackle structure is not conducive to the operation of ROVs (underwater robots).

[0003] With the continuous development of ocean engineering towards deeper waters, underwater hoisting construction will become more difficult, and there is an urgent need for matching hoisting tools. Summary of the Utility Model

[0004] In order to solve the problem that the existing underwater hoisting tools cannot be quickly coordinated with ROV underwater robots in diving operations with a water depth exceeding 100 meters, resulting in low work efficiency, the utility model provides an underwater hoisting seat operated by an ROV, which can be quickly coordinated with the ROV underwater robot and has high hoisting efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] An underwater hoisting seat operated by an ROV includes a flange base, a pair of vertical ear plates fixed on the flange base, and a guide sleeve. The pair of vertical ear plates includes a first vertical ear plate and a second vertical ear plate. The guide sleeve penetrates and is fixedly connected to the first vertical ear plate. An insert pin assembly that can move is arranged in the guide sleeve, and a connection hole that cooperates with the insert pin assembly is arranged on the second vertical ear plate.

[0007] Preferably, the insert pin assembly includes a pin shaft sleeved in the guide sleeve, a guide member, and a handle. The top end of the pin shaft has an annular step, and the bottom is conical. The guide member is columnar and fixed on the side wall of the pin shaft. The handle is in a twist shape and is fixed on the annular step at the top of the pin shaft.

[0008] Preferably, a U - shaped groove that cooperates with the guide member is arranged on the guide sleeve.

[0009] Preferably, the U - shaped groove includes a sliding groove and a pair of transverse grooves. The pair of transverse grooves are respectively located at both ends of the sliding groove.

[0010] Preferably, the width of the sliding groove is greater than the width of the guide member.

[0011] Preferably, a reinforcing plate is fixed at the end of the guide sleeve far from the first vertical ear plate. The reinforcing plate is annular, and a relief hole for avoiding the insert pin assembly is arranged in the middle. The cross - sectional area of the relief hole is smaller than the cross - sectional area of the annular step.

[0012] Preferably, a threaded hole is provided on the pin shaft, and the bottom end of the guide member has a thread adapted to the threaded hole.

[0013] Preferably, a plurality of reinforcing plates are fixed between the first vertical ear plate and the second vertical ear plate.

[0014] Preferably, a reinforcing sleeve is fixed to one end of the second vertical ear plate away from the first vertical ear plate.

[0015] Preferably, the flange base is annular, and threaded holes are provided on the flange base.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) An underwater lifting seat for ROV operation designed by the utility model forms an inverted shackle by setting a pin assembly, a pair of vertical ear plates and a guide sleeve that are convenient for the underwater robot to operate, facilitating the insertion or removal of the pin assembly to lock or release the sling inside it.

[0018] (2) In the embodiment of the utility model, by designing that a guide member is installed on the pin assembly and can move along the guide member chute of the flange base, the direction of the longitudinal movement of the axis is fixed.

[0019] (3) In the embodiment of the utility model, by designing that both ends of the chute have transverse grooves, it is convenient to laterally engage the guide member at the extreme positions of insertion or removal, realizing the fixation of the pin position and preventing the self-locking pin assembly shackle from being opened under external force, thereby improving the stability of the self-locking shackle.

[0020] (4) In the embodiment of the utility model, by designing that the pin shaft is moved or rotated through the ROV operation handle, it is convenient to control the pin shaft to engage with the transverse groove or slide in the chute, meeting the needs of deep-water hoisting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram when the pin assembly is not assembled;

[0022] Figure 2 is a schematic structural diagram when the pin assembly is working;

[0023] Figure 3 is a schematic structural diagram when the pin assembly is not locked;

[0024] Figure 4 is a schematic structural diagram of the pin assembly;

[0025] In the figure: 1. Flange base; 2. Pin assembly; 21. Handle; 22. Pin shaft; 23. Guide; 24. Annular step; 3. First vertical ear plate; 4. Second vertical ear plate; 5. Reinforcing plate; 6. Guide sleeve; 7. U-shaped groove; 71. Slide groove; 72. Horizontal groove; 8. Reinforcing plate; 9. Reinforcing sleeve. Detailed implementation mode

[0026] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Refer to Figures 1-3 , an underwater lifting seat for ROV operation, comprising a flange base 1, a pair of vertical ear plates and a guide sleeve 6 fixed on the flange base. The pair of vertical ear plates include a first vertical ear plate 3 and a second vertical ear plate 4. The guide sleeve 6 penetrates through the first vertical ear plate 3 and is fixedly connected with the first vertical ear plate 3. The guide sleeve 6 is internally provided with a movable pin assembly 2. A connection hole matching the pin assembly 2 is formed on the second vertical ear plate 4.

[0028] Refer to Figure 4 , in an embodiment of the present utility model, the pin assembly 2 includes a pin shaft 22 sleeved in the guide sleeve 6, a guide 23 and a handle 21. The top end of the pin shaft 22 has an annular step 24, and the bottom is in a conical shape. The guide 23 is in a columnar shape and is fixed on the side wall of the pin shaft 22. The handle 21 is in a twist shape and is fixed on the annular step 24 at the top of the pin shaft 22. The handle is moved or rotated through ROV operation, which is convenient for the pin shaft to be inserted into or removed from the guide sleeve 6.

[0029] Refer to Figures 2-4 , on the basis of the previous embodiment, the guide sleeve 6 is provided with a U-shaped groove 7 matching the guide 6. Specifically, the U-shaped groove 7 includes a slide groove 71 and a pair of horizontal grooves 72. The pair of horizontal grooves 72 are respectively located at both ends of the slide groove 71. When the guide is screwed into the horizontal groove 72, the pin shaft 22 cannot move back and forth, realizing clamping; when the guide 23 is screwed out of the horizontal groove 72 and enters the slide groove 71, the pin shaft 22 can move back and forth.

[0030] Furthermore, the width of the slide groove 71 is greater than the width of the guide 23, which is convenient for the operation and locking of the pin assembly 2.

[0031] Refer to Figures 1-3 , in an embodiment of the present utility model, a reinforcing plate 5 is fixed at the end of the guide sleeve 6 far from the first vertical ear plate 3 for improving the structural strength and rigidity. The reinforcing plate 5 is annular, and a relief hole for avoiding the pin assembly 2 is provided in the middle. The cross-sectional area of the relief hole is smaller than the cross-sectional area of the annular step 4.

[0032] Refer toFigure 1 In an embodiment of the present utility model, a plurality of reinforcing plates 8 are fixed between the first vertical ear plate 3 and the second vertical ear plate 4 to improve the structural strength and stiffness.

[0033] See Figure 1 In an embodiment of the present utility model, a reinforcing sleeve 9 is fixed to one end of the second vertical ear plate 4 away from the first vertical ear plate 3, which can prevent the local stress of the connecting hole of the second vertical ear plate 4 from exceeding the material strength when bearing the pin shaft 22.

[0034] See Figure 1 In an embodiment of the present utility model, the flange base 1 is annular, and threaded holes are provided on the flange base 1 for connecting with the object to be hoisted.

[0035] During installation, the first step: Determine the allowable load of the lifting seat according to the design of the lifting points, and determine the basic dimensions of the base and the pin assembly according to the load and the manufacturing material. The base 1 is made by welding a steel plate and a steel pipe. The holes for installing the pin assembly 2 need to be machined by a vertical boring mill to maintain coaxiality. The pin assembly uses a high-strength steel forged pin shaft 22, and a handle 21 is made at the rear end according to the requirements of ROV operation. According to the moving range of the guide member 23 on the sliding groove 71, threaded holes are machined at the corresponding positions within this range on the pin shaft 22 to meet the installation of the threaded guide member 23 at the bottom.

[0036] The second step: Insert the pin shaft 22 welded with the handle 21 into the avoidance hole of the reinforcing plate 5 of the guide sleeve 6, adjust so that the threaded holes machined on the pin shaft 22 are exposed in the sliding groove 71, screw in the guide member 23 and perform spot welding and treatment to prevent the key from loosening after long-term use. After the installation of the guide member 23 is completed, the whole underwater lifting seat is installed.

[0037] The working principle of the present utility model is as follows:

[0038] Connect the flange base 1 to the object to be lifted and fixed, rotate the pin assembly 2 out, and put in a lifting lock such as a sling or a wire rope lock. Rotate and insert the pin assembly 2, and rotate it so that the guide member 23 is stuck in the proximal transverse groove 72 to complete the locking. Then lift the object to be lifted as a whole. At this time, the lock holds the pin shaft 22 and can stably bear the load, and the underwater lifting installation is successfully completed.

[0039] After the underwater robot is installed, it approaches the pin assembly 2, rotates the pin assembly 2 through the manipulator, so that the guide member 23 is disengaged from the proximal transverse groove 72, retracts and pulls out. At this time, the pin shaft 22 is disengaged from the guide sleeve, and the lifting lock can be disengaged from the pin shaft 22 to complete the recovery. The pin shaft 22 is disengaged at multiple positions in sequence, and all the lifting locks are recovered, and the lifting is completed.

[0040] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. An underwater hoisting mount for ROV operation, characterized in that: It includes a flange base, a pair of vertical ear plates fixed on the flange base and a guide sleeve, the pair of vertical ear plates include a first vertical ear plate and a second vertical ear plate, the guide sleeve passes through and is fixedly connected to the first vertical ear plate, a movable latch assembly is provided in the guide sleeve, and a connecting hole that cooperates with the latch assembly is opened on the second vertical ear plate.

2. An underwater hoisting mount for ROV operation according to claim 1, characterized in that: The latch assembly includes a pin shaft, a guide member and a handle which are sleeved in a guide sleeve. The top of the pin shaft has an annular step and the bottom is conical. The guide member is columnar and fixed to the side wall of the pin shaft. The handle is twisted and fixed to the annular step at the top of the pin shaft.

3. An underwater hoisting mount for ROV operation according to claim 2, characterized in that: The guide sleeve is provided with a U-shaped groove which cooperates with the guide piece.

4. An underwater hoisting mount for ROV operation according to claim 3, characterized in that: The U-shaped groove includes a slide groove and a pair of transverse grooves, and the pair of transverse grooves are respectively located at two ends of the slide groove.

5. An underwater hoisting mount for ROV operation according to claim 4, characterized in that: The width of the slide groove is greater than the width of the guide member.

6. An underwater hoisting mount for ROV operation according to claim 2, characterized in that: A reinforcing plate is fixed to one end of the guide sleeve away from the first vertical ear plate. The reinforcing plate is annular and has a evacuation hole in the middle for evading the latch assembly. The cross-sectional area of ​​the evacuation hole is smaller than the cross-sectional area of ​​the annular step.

7. An underwater hoisting mount for ROV operation according to claim 2, characterized in that: The pin shaft is provided with a screw hole, and the bottom end of the guide member is provided with a thread matched with the screw hole.

8. The underwater hoisting mount for ROV operation according to claim 1, characterized in that: A plurality of reinforcing plates are fixed between the first vertical ear plate and the second vertical ear plate.

9. The underwater hoisting mount for ROV operation according to claim 1, characterized in that: A reinforcing sleeve is fixed on one end of the second vertical ear plate away from the first vertical ear plate.

10. The underwater hoisting mount for ROV operation according to claim 1, characterized in that: The flange base is annular and has a threaded hole.

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