Foldable lifting device for ship

Abstract

The utility model relates to a foldable hoisting device for ship, which comprises a pillar, a rotating shaft component, a gravity component and a first folding component, the rotating shaft component is composed of two rotating shafts and a connecting piece which are vertically arranged and parallel, the rotating shaft component is connected with a first arm and a second arm, the structural strength is enhanced through a third arm in the middle, and the rotating shaft component is arranged at the top of the pillar. Multi-direction adjustment of the first arm, the second arm and the third arm is allowed, the gravity assembly is composed of a connecting plate, a power device and a gravity part, the power device drives the third arm through a connecting shaft, and the first folding assembly achieves rapid folding and unfolding capacity through the design of a first rotating shaft, a second rotating shaft and a sliding rail clamping part. The space in the ship in a non-use state is greatly saved; in addition, the structures of the first arm and the second arm are reinforced, the stability and durability in the hoisting process are guaranteed, the device can be rapidly stored in the non-operation period, and the space utilization flexibility of the ship is improved.

Description

Technical Field

[0001] The utility model relates to a marine foldable lifting device. Background Art

[0002] Existing marine lifting devices are usually designed as fixed structures to adapt to different loading and unloading tasks. However, these traditional lifting devices are often bulky, which is not conducive to the flexibility and space utilization rate of ships. With the development of the shipbuilding industry, the design of ships tends to be multi-functional and space-efficient, which requires that the lifting device should not only meet the high-intensity work requirements but also facilitate the space layout and transportation of the ship. Traditional lifting devices do not have a foldable function, resulting in the ship having to sacrifice part of its cargo capacity in a limited space to accommodate these devices.

[0003] Therefore, a marine foldable lifting device is needed, which can reduce the space occupied on the ship through folding, is reliable and stable in structure, and at the same time ensures that it can be quickly deployed, fixed and put into operation when needed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art, and provide a marine foldable lifting device that can be quickly deployed. The purpose of the utility model is achieved as follows:

[0005] A marine foldable lifting device includes a support column, a gravity component, a rotating shaft component and a first folding component. The rotating shaft component is rotatably arranged at the top of the support column. The rotating shaft component includes connecting pieces and rotating shafts. There are two connecting pieces, which are arranged in parallel on the top of the support column. There are two rotating shafts, and the rotating shafts are arranged between the connecting pieces in sequence along the first direction, and the first direction is the vertical direction. The rotating shafts are respectively connected to a first arm and a second arm. A third arm is fixedly connected between the first arm and the second arm, and the third arm extends in a direction opposite to the first arm and the second arm. The gravity component includes a connecting plate, a gravity member and a power device. The connecting plate is fixedly arranged on the bracket, the power device is fixedly arranged between the connecting plates, the power device is connected to the third arm through a connecting shaft, and a gravity member is fixedly arranged at the end of the third arm. A first folding member is arranged in the middle part of the first arm and the second arm. The first folding member includes a clamping member, a first rotating shaft and a second rotating shaft. The first rotating shaft is arranged on the first arm, the second rotating shaft is arranged on the second arm, a sliding rail is arranged on the second arm along the extending direction of the second arm, and the clamping member is movably arranged on the second arm through the sliding rail, and the sliding rail can be fixed on the second rotating shaft.

[0006] In order to further save space, connecting pieces are arranged at the ends of the first arm and the second arm, and a second folding component is rotatably arranged on the lower side of the connecting piece, and the end of the second folding component is connected to a lifting hook.

[0007] Furthermore, the rotation angles of the first rotation axis and the second rotation axis are each at least 60 degrees to the left and right, and the rotation angle of the second folding assembly is 360 degrees.

[0008] Furthermore, a control motor is installed inside the second arm for moving the clamping member.

[0009] Furthermore, a control motor is provided inside the power device for pushing the connecting shaft to move up and down.

[0010] Furthermore, the first arm, the second arm, and the third arm are all made of corrosion-resistant high-strength alloy material.

[0011] Furthermore, the thrust of the motor in the power device ranges from 500 Nm to 3000 Nm.

[0012] Furthermore, a wear-resistant material coating, such as a diamond-like carbon film, is provided on the mating surface between the slide rail and the clamping member.

[0013] Beneficial effects: In the non-use state, it can be quickly folded through simple operations, greatly reducing the occupied space inside the ship and leaving more space for other operations or cargo on the ship; during use, it can be quickly deployed by clamping the clamping member on the folding component, and at the same time, it has the first arm and the second arm, strengthening the structural strength. Description of the Drawings

[0014] Figure 1 is a perspective view schematic diagram of a marine foldable lifting device;

[0015] Figure 2 is a front view schematic diagram of a marine foldable lifting device;

[0016] Figure 3 is a front view schematic diagram of a fixed state of a marine foldable lifting device;

[0017] Figure 4 is a perspective view schematic diagram of the first folding assembly of a marine foldable lifting device;

[0018] In the figure: 1. Gravity assembly, 1-1. Gravity member, 1-2. Connecting shaft, 1-3. Connecting plate, 1-4. Power device, 2. Rotating shaft assembly, 3. First folding assembly, 3-1. Clamping member, 3-2. Slide rail, 3-3. Second rotation axis, 3-4. First rotation axis, 4. Second folding assembly, 5. Lifting hook, 6. Connecting member, 7. Connecting piece, 8. First arm, 9. Second arm, 10. Third arm, 11. Support column. Detailed Implementation Modes

[0019] To deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

[0020] In this embodiment:

[0021] Please refer to Figures 1-4 , a marine foldable lifting device, including a support column 11, a gravity assembly 1, a rotating shaft assembly 2 and a first folding assembly 3. The rotating shaft assembly 2 is rotatably arranged at the top of the support column 11. The rotating shaft assembly 2 includes connecting pieces 7 and rotating shafts. There are two connecting pieces 7, and the connecting pieces 7 are arranged in parallel on the top of the support column 11. There are two rotating shafts, and the rotating shafts are arranged between the connecting pieces 7 in sequence along the first direction. The first direction is the vertical direction. The rotating shafts are respectively connected to the first arm 8 and the second arm 9. A third arm 10 is fixedly connected between the first arm 8 and the second arm 9, and the third arm 10 extends in a direction opposite to the first arm 8 and the second arm 9. The gravity assembly 1 includes a connecting plate 1-3, a gravity member 1-1 and a power device 1-4. The connecting plate 1-3 is fixedly arranged on the bracket, and the power device 1-4 is fixedly arranged between the connecting plates 1-3. The power device 1-4 is connected to the third arm 10 through a connecting shaft 1-2. A gravity member 1-1 is fixedly arranged at the end of the third arm 10. A first folding member is arranged in the middle part of the first arm 8 and the second arm 9. The first folding member includes a clamping member 3-1, a first rotating shaft 3-4 and a second rotating shaft 3-3. The first rotating shaft 3-4 is arranged on the first arm 8, and the second rotating shaft 3-3 is arranged on the second arm 9. A slide rail 3-2 is arranged on the second arm 9 along the extending direction of the second arm 9. The clamping member 3-1 is movably arranged on the second arm 9 through the slide rail 3-2, and the slide rail 3-2 can be fixed on the second rotating shaft 3-3.

[0022] To save space further, a connecting member 6 is arranged at the ends of the first arm 8 and the second arm 9. A second folding assembly 4 is rotatably arranged on the lower side of the connecting member 6. The end of the second folding assembly 4 is connected to a lifting hook 5. The rotation angles of the first rotating shaft 3-4 and the second rotating shaft 3-3 are at least 60 degrees to the left and right respectively, and the rotation angle of the second folding assembly 4 is 360 degrees. A control motor is installed inside the second arm 9 for moving the clamping member 3-1. A control motor is arranged inside the power device 1-4 for pushing the connecting shaft 1-2 to move up and down. The first arm 8, the second arm 9 and the third arm 10 are all made of corrosion-resistant high-strength alloy materials. The thrust range of the motor in the power device 1-4 is 500 Nm to 3000 Nm. A wear-resistant material coating, such as a diamond-like carbon film, is provided on the mating surface between the slide rail 3-2 and the clamping member 3-1.

[0023] Implementation example:

[0024] When the device is folded in the non-use state, both the second rotating shaft 3-3 and the first rotating shaft 3-4 rotate inwards by 60 degrees, saving at least half of the space. When the device is in use, start the control motor, stretch the first arm 8 and the second arm 9 forward, and then make the clamping member 3-1 be clamped in the second rotating shaft 3-3 through the control motor to fix the first arm 8 and the second arm 9. By controlling the power device 1-4, the third arm 10 can be driven to move up and down, thereby further controlling the up and down of the first arm 8 and the second arm 9.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A marine foldable lifting device, characterized in that, It includes a support column, a gravity component, a rotating shaft component and a first folding component. The rotating shaft component is rotatably arranged at the top of the support column. The rotating shaft component includes connecting pieces and rotating shafts. There are two connecting pieces, which are arranged in parallel with each other at the top of the support column. There are two rotating shafts, and the rotating shafts are arranged between the connecting pieces in sequence along a first direction, and the first direction is the vertical direction. The rotating shafts are respectively connected to a first arm and a second arm. A third arm is fixedly connected between the first arm and the second arm, and the third arm extends in a direction opposite to the first arm and the second arm. The gravity component includes a connecting plate, a gravity piece and a power device. The connecting plate is fixedly arranged on the bracket, the power device is fixedly arranged between the connecting plates, the power device is connected to the third arm through a connecting shaft, and a gravity piece is fixedly arranged at the end of the third arm. A first folding piece is arranged in the middle part of the first arm and the second arm. The first folding piece includes a clamping piece, a first rotating shaft and a second rotating shaft. The first rotating shaft is arranged on the first arm, the second rotating shaft is arranged on the second arm, a slide rail is arranged on the second arm along the extending direction of the second arm, and the clamping piece is movably arranged on the second arm through the slide rail, and the slide rail can be fixed on the second rotating shaft.

2. The marine foldable lifting device according to claim 1, characterized in that , a connecting piece is arranged at the ends of the first arm and the second arm, and a second folding component is rotatably arranged on the lower side of the connecting piece, and the end of the second folding component is connected to a lifting hook.

3. The marine foldable lifting device according to claim 2, wherein The rotation angles of the first rotating shaft and the second rotating shaft are both at least 60 degrees to the left and right, and the rotation angle of the second folding component is 360 degrees.

4. A marine foldable lifting device according to claim 1, characterized in that, A control motor is installed inside the second arm for moving the clamping piece.

5. The marine foldable lifting device according to claim 1, characterized in that, A control motor is arranged inside the power device for pushing the connecting shaft to move up and down.

6. The marine foldable lifting device according to claim 1, characterized in that, The first arm, the second arm and the third arm are all made of corrosion-resistant high-strength alloy materials.

7. A marine foldable lifting device according to claim 1, characterized in that, The thrust range of the motor in the power device is 500 Nm to 3000 Nm.

8. The marine foldable lifting device according to claim 1, characterized in that, A wear-resistant material coating is provided on the mating surface between the slide rail and the clamping piece.

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