Dropping device

Abstract

The invention discloses a throwing device, which is used for throwing underwater concrete rows, and comprises a frame extending along the horizontal direction; the hoisting assembly is arranged at the upper end of the frame, and the hoisting assembly is used for being connected with a crane; one end of each movable hook is connected with the outer edge of the frame, and the other end of each movable hook is movably arranged; one end of each action rope is connected with the other end of the corresponding movable hook, and the action ropes are used for driving the movable hooks to move; wherein the movable hook is movably switched between a first position and a second position, and the underwater concrete row is provided with at least two annular hanging pieces. Through the application of the releasing device, the releasing device suitable for arranging underwater concrete rows in the subsea pipeline construction process is provided, the concrete rows can be conveniently, stably and safely released from the frame through the cooperation of the movable hook and the action rope, the construction quality and efficiency are improved, and the labor demand is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of subsea construction, and particularly to a placing device. Background Art

[0002] In the field of offshore engineering construction, the safety and stability of subsea pipelines are of crucial importance. As a commonly used protective structure, concrete mattresses are mainly used to cover and protect offshore subsea pipelines, preventing the pipelines from being exposed due to insufficient burial depth or improper construction, and thus being damaged by external factors such as ship anchoring and trawling operations. Although relevant departments will issue navigation warnings or demarcate no-anchoring areas before construction, subsea pipeline damage incidents still occur from time to time, and it is difficult to trace the responsibility, causing significant economic losses to pipeline operating units.

[0003] In the prior art, the placement of concrete mattresses is generally that a corresponding ship transports the concrete mattresses to a designated sea area under the guidance of navigation equipment. After the construction ship arrives at the designated position, a crane hook is used to connect a lifting tooling, and the concrete mattress is hung on the lifting tooling. Then, the concrete mattresses are successively lifted and released one by one along the laying route of the subsea pipeline, and the concrete mattresses are pressed on the exposed subsea pipeline by their own gravity, so as to form an effective external barrier. However, in the placement operation of concrete mattresses, there is generally a lack of special lifting tooling, and it mostly relies on a steel frame welded temporarily on site for lifting, and the separation operation between the steel frame and the concrete mattress is also relatively inconvenient. This causes the concrete mattress to fold during the dropping process when it is lifted to the seabed, reducing the original protection area and directly affecting the construction quality and efficiency. Summary of the Invention

[0004] In view of this, to solve the above problems, the purpose of the present invention is to provide a placing device for placing underwater concrete mattresses, including:

[0005] A frame, the frame is arranged to extend in the horizontal direction;

[0006] A lifting assembly, the lifting assembly is arranged at the upper end of the frame, and the lifting assembly is used for connecting with a crane;

[0007] At least two movable hooks, one end of the movable hook is connected to the outer edge of the frame, and the other end of the movable hook is movably arranged;

[0008] At least two action ropes, one end of the action rope is connected to the other end of the movable hook, and the action rope is used to drive the movement of the movable hook;

[0009] Wherein, the movable hook can be movably switched between a first position and a second position, and there are at least two annular suspension members on the underwater concrete mattress;

[0010] When the movable hook is in the first position, the annular suspension member is hung on the movable hook;

[0011] When the movable hook is in the second position, the annular suspension member disengages from the movable hook.

[0012] In another preferred embodiment, the movable hook includes: a first part and a second part. One end of the first part is fixedly connected to the frame, one end of the second part is rotatably connected to the other end of the first part, and the other end of the second part is connected to the action rope.

[0013] In another preferred embodiment, the second part has at least a first side;

[0014] Wherein, when the movable hook is in the first position, the first side extends horizontally;

[0015] Wherein, when the movable hook is in the second position, the first side extends vertically.

[0016] In another preferred embodiment, the second part further has a second side adjacent to the first side, and an included angle is formed between the first side and the second side;

[0017] Wherein, when the movable hook is in the first position, the second side extends vertically;

[0018] Wherein, when the movable hook is in the second position, the second side extends horizontally.

[0019] In another preferred embodiment, it further includes: two additional hooks and two guy ropes. One end of the additional hook is connected to the outer edge of the frame, and the other end of the additional hook is connected to one end of the guy rope.

[0020] In another preferred embodiment, the frame is arranged in a rectangular structure, the two additional hooks are diagonally arranged relative to the frame, and the two movable hooks are diagonally arranged relative to the frame.

[0021] In another preferred embodiment, the frame includes: an outer frame and an inner beam, and the inner beam is arranged inside the outer frame.

[0022] In another preferred embodiment, the frame further includes: several corner connectors, the corner connectors are arranged inside the outer frame, and the hoisting assembly is connected to the corner connectors.

[0023] In another preferred embodiment, the hoisting assembly includes: a plurality of first slings, a connection assembly, and a second sling. The lower end of the first sling is connected to the corner connecting piece, the upper end of the first sling is connected to the lower end of the second sling through the connection assembly, and the upper end of the second sling extends upward.

[0024] In another preferred embodiment, it further includes: a crane, which has a mobile end and a fixed end. The mobile end is connected to the hoisting assembly, and the fixed end is connected to the action rope.

[0025] Due to the adoption of the above technical solutions, the positive effects of the present invention compared with the prior art are as follows:

[0026] By applying the present invention, a placing device suitable for arranging underwater concrete rows during the construction of submarine pipelines is provided. Through the cooperation of the movable hook and the action rope, it is convenient to stably and safely release the concrete rows from the frame, improving the construction quality and efficiency and reducing the labor demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the first schematic diagram of a placing device of the present invention;

[0028] Figure 2 is the second schematic diagram of a placing device of the present invention;

[0029] Figure 3 is the first position schematic diagram of the movable hook of a placing device of the present invention;

[0030] Figure 4 is the second position schematic diagram of the movable hook of a placing device of the present invention.

[0031] In the drawings:

[0032] 1. Underwater concrete row; 2. Frame; 3. Hoisting assembly; 4. Movable hook; 5. Action rope; 6. Ring-shaped suspension member; 7. First part; 8. Second part; 9. First side; 10. Second side; 11. Additional hook; 12. Guy wire; 13. Outer frame; 14. Inner beam; 15. Corner connecting piece; 16. First sling; 17. Connection assembly; 18. Second sling. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0035] It should be specifically noted that in the present invention, "horizontal" and "vertical" are both used to illustrate the approximate positional relationship, rather than strict "horizontal plane" or "vertical plane".

[0036] As Figure 1 and Figure 4 shown, there is shown a placing device of a preferred embodiment for placing underwater concrete row 1, including: a frame 2, the frame 2 is arranged to extend in the horizontal direction; a hoisting assembly 3, the hoisting assembly 3 is arranged at the upper end of the frame 2, and the hoisting assembly 3 is used for connecting with a crane; at least two movable hooks 4, one end of the movable hook 4 is connected to the outer edge of the frame 2, and the other end of the movable hook 4 is movably arranged; at least two action ropes 5, one end of the action rope 5 is connected to the other end of the movable hook 4, and the action rope 5 is used to drive the movement of the movable hook 4; wherein, the movable hook 4 can be movably switched between a first position and a second position, and there are at least two annular suspension members 6 on the underwater concrete row 1; when the movable hook 4 is in the first position, the annular suspension member 6 is hung on the movable hook 4; when the movable hook 4 is in the second position, the annular suspension member 6 disengages from the movable hook 4. Further, with the frame 2 as the hoisting main body of the underwater concrete row 1, under the restriction of the movable hook 4, the underwater concrete row 1 is hung below the frame 2. As the action rope 5 is pulled, the movable hook 4 can be flipped by a certain angle, preferably from the first position facing upwards to the second position facing downwards, thereby driving the underwater concrete row 1 to disengage from the frame 2 and covering the pipeline on the seabed under its own gravity.

[0037] Further, as a preferred embodiment, the annular suspension member 6 may preferably be a steel wire rope loop or a metal ring fixed at the diagonal corners of the underwater concrete row 1.

[0038] Further, as a preferred embodiment, the movable hook 4 includes: a first part 7 and a second part 8. One end of the first part 7 is fixedly connected to the frame 2, one end of the second part 8 is rotatably connected to the other end of the first part 7, and the other end of the second part 8 is connected to the action rope 5. Further, the first part 7 serves as the connection basis between the second part 8 and the frame 2, so that the second part 8 is positioned outside the frame 2 and allowed to be flipped.

[0039] Further, as a preferred embodiment, the first part 7 includes: two connecting members and a shaft member. The two connecting members are arranged in parallel. One end of each of the two connecting members is fixedly connected to the outer edge of the frame 2, and a shaft member is provided at the other end of the two connecting members. One end of the second part 8 is rotatably mounted on the shaft member through an opening.

[0040] Further, as a preferred embodiment, the connecting member is arranged in a plate structure.

[0041] Further, as a preferred embodiment, a gap is formed between the two connecting members. When the movable hook 4 is in the first position, the first part 7 is allowed to be received in the gap.

[0042] Further, as a preferred embodiment, a connection hole is provided at the other end of the second part 8 so that the end of the action rope 5 passes through the connection hole for connection.

[0043] Further, as a preferred embodiment, the end of the action rope 5 is preferably arranged in a ring structure.

[0044] Further, as a preferred embodiment, the second part 8 at least has a first side 9; wherein, when the movable hook 4 is in the first position, the first side 9 extends in the horizontal direction; wherein, when the movable hook 4 is in the second position, the first side 9 extends in the vertical direction. Further, when the movable hook 4 is in the first position, the first side 9 extends in the horizontal direction and faces upward as a whole. At this time, the first side 9 forms an upward support for the underwater concrete row 1; and when moving towards the second position, the first side 9 gradually turns outwards so that it has a downward inclination trend, thereby releasing the underwater concrete row 1.

[0045] Further, as a preferred embodiment, the second part 8 also has a second side 10 adjacent to the first side 9, and an included angle is formed between the first side 9 and the second side 10; wherein, when the movable hook 4 is in the first position, the second side 10 extends in the vertical direction; wherein, when the movable hook 4 is in the second position, the second side 10 extends in the horizontal direction.

[0046] Further, as a preferred embodiment, the first side 9 and the second side 10 together are arranged in an L-shaped structure, and the included angle is preferably set at 90 degrees.

[0047] Further, as a preferred embodiment, it further includes: two additional hooks 11 and two guy ropes 12. One end of the additional hook 11 is connected to the outer edge of the frame 2, and the other end of the additional hook 11 is connected to one end of the guy rope 12. Further, the construction worker can apply a certain pulling force to the two guy ropes 12 manually or by means of other devices, so that the entire frame 2 will not rotate.

[0048] Further, as a preferred embodiment, the additional hook 11 can adopt the same structural style as the movable hook 4, so as to facilitate the adjustment of the positions of the guy rope 12 and the action rope 5.

[0049] Further, as a preferred embodiment, the frame 2 is arranged in a rectangular structure, the two additional hooks 11 are arranged diagonally with respect to the frame 2, and the two movable hooks 4 are arranged diagonally with respect to the frame 2.

[0050] The above are only preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention accordingly.

[0051] The present invention also has the following implementation manners on the above basis:

[0052] In a further embodiment of the present invention, the frame 2 includes: an outer frame 13 and inner beams 14, and the inner beams 14 are arranged inside the outer frame 13.

[0053] In a further embodiment of the present invention, the outer frame 13 is arranged in a hollow rectangular structure.

[0054] In a further embodiment of the present invention, the inner beams 14 include a plurality of longitudinally and transversely connected beams to form a grid-like strengthening structure inside the outer frame 13.

[0055] In a further embodiment of the present invention, the frame 2 further includes: a plurality of corner connectors 15, the corner connectors 15 are arranged inside the outer frame 13, and the hoisting assembly 3 is connected to the corner connectors 15.

[0056] In a further embodiment of the present invention, the corner connector 15 includes two triangular reinforcing plates and a longitudinal plate, the triangular reinforcing plates and the longitudinal plate together form a "T" - shaped structure, the triangular reinforcing plates have adjacent sides to be respectively fixedly connected to adjacent inner walls of the inside of the outer frame 13, the triangular reinforcing plates extend horizontally, and the upper end of the longitudinal plate protrudes above the upper surface of the upper triangular reinforcing plate and forms an opening for connecting with the hoisting assembly 3.

[0057] In a further embodiment of the present invention, preferably four corner connectors 15 are provided to be respectively arranged at the four corners inside the outer frame 13.

[0058] In a further embodiment of the present invention, the hoisting assembly 3 includes: a plurality of first slings 16, a connecting component 17 and a second sling 18, the lower ends of the first slings 16 are connected to the corner connectors 15, the upper ends of the first slings 16 are connected to the lower ends of the second slings 18 through the connecting component 17, and the upper ends of the second slings 18 extend upward.

[0059] In a further embodiment of the present invention, the connecting component 17 is preferably two lifting rings.

[0060] In a further embodiment of the present invention, the lower ends of the four first slings 16 are respectively connected to the four corner connectors 15, and the upper ends of every two first slings 16 are jointly fixedly connected to a lifting ring. The lower end of the second sling 18 forms a U-shaped structure passing through the two lifting rings.

[0061] In a further embodiment of the present invention, the first sling 16, the second sling 18, the action rope 5 and the guy rope 12 are preferably all made of steel wire ropes.

[0062] In a further embodiment of the present invention, it further includes: a crane, the crane has a mobile end and a fixed end, the mobile end is connected to the hoisting assembly 3, and the fixed end is connected to the action rope 5. Further, during the process of arranging the underwater concrete row 1, the mobile end of the crane can be moved downward, so that the hoisting assembly 3 drives the frame 2 to move downward through the mobile end, while the position of the fixed end remains unchanged, so that after reaching the specified depth, the action rope 5 receives an upward pulling force, so that the movable hook 4 performs corresponding actions.

[0063] In a further embodiment of the present invention, the mobile end is preferably the vertically movable hook of the crane, and the fixed end is preferably the immovable boom of the crane.

[0064] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A delivery device for delivering underwater concrete row, characterized in that: include: A frame, wherein the frame is extended in a horizontal direction; A hoisting assembly, the hoisting assembly is arranged at the upper end of the frame, and the hoisting assembly is used for connection with a crane; At least two movable hooks, one end of each movable hook is connected to the outer edge of the frame, and the other end of each movable hook is movably arranged; At least two action ropes, one end of each action rope is connected to the other end of each activity hook, and each action rope is used to drive the activity hook; Wherein, the movable hook can be movably switched between a first position and a second position, and the underwater concrete row has at least two annular suspension members; When the movable hook is in the first position, the annular hanging member is hung on the movable hook; When the movable hook is at the second position, the annular hanging member is disengaged from the movable hook.

2. The underwater concrete row delivery device according to claim 1 is characterized in that: The movable hook comprises a first part and a second part, wherein one end of the first part is fixedly connected to the frame, one end of the second part is rotatably connected to the other end of the first part, and the other end of the second part is connected to the action rope.

3. The underwater concrete row delivery device according to claim 2 is characterized in that: The second portion has at least a first side; Wherein, when the movable hook is in the first position, the first edge is extended in the horizontal direction; wherein, when the movable hook is in the second position, the first edge is extended in the vertical direction.

4. The underwater concrete row delivery device according to claim 3 is characterized in that: The second portion further has a second side adjacent to the first side, and an angle is formed between the first side and the second side; Wherein, when the movable hook is in the first position, the second edge is extended in the vertical direction; wherein, when the movable hook is in the second position, the second edge is extended in the horizontal direction.

5. The underwater concrete row delivery device according to claim 1, characterized in that: It also includes: two additional hooks and two wind ropes, one end of the additional hook is connected to the outer edge of the frame, and the other end of the additional hook is connected to one end of the wind rope.

6. The underwater concrete row delivery device according to claim 5, characterized in that: The frame is arranged in a rectangular structure, the two additional hooks are arranged diagonally relative to the frame, and the two movable hooks are arranged diagonally relative to the frame.

7. The underwater concrete row delivery device according to claim 1, characterized in that: The frame comprises an outer frame and an inner beam, wherein the inner beam is arranged on the inner side of the outer frame.

8. The underwater concrete row delivery device according to claim 7, characterized in that: The frame further comprises: a plurality of corner connectors, wherein the corner connectors are arranged on the inner side of the outer frame, and the hanging assembly is connected to the corner connectors.

9. The underwater concrete row delivery device according to claim 8, characterized in that: The lifting assembly includes: a plurality of first slings, a connecting assembly and a second sling, the lower end of the first sling is connected to the corner connector, the upper end of the first sling is connected to the lower end of the second sling through the connecting assembly, and the upper end of the second sling is extended upward.

10. The underwater concrete row delivery device according to claim 1, characterized in that: Also includes: A crane having a moving end and a fixed end, wherein the moving end is connected to the hoisting assembly, and the fixed end is connected to the action rope.

Images