A lifeboat maintenance and transfer apparatus

Abstract

The application discloses a lifeboat maintenance and transfer equipment, and relates to the technical field of transfer equipment, which comprises a hoisting device, a transfer trolley and a limiting mechanism, the lower end of the steel wire rope of the hoisting device is provided with a lifting hook, the lifting hook is used for being hooked on the fixing ring on the two sides of the lifeboat, the two sides of the transfer trolley are respectively provided with limiting plates, and the limiting mechanism is arranged on the limiting plates, the equipment of the application can buffer the gravity of the lifting hook when the lifting hook is unloaded, and can limit the lifeboat in the predetermined position by the gravity of the lifting hook, so that the limiting mechanism is driven without additional driving force, and the positioning rod is in a vertical state in normal times, thereby avoiding the interference of the lifting hook on the rotation.

Description

Technical Field

[0001] This invention relates to the technical field of transfer equipment, and specifically to a lifeboat repair and transfer device. Background Technology

[0002] When a lifeboat malfunctions and requires repair, it needs to be transported from the accident site to the repair site. After the lifeboat is lifted onto the transport vehicle using a hoisting device, a self-unloading hook is generally used to facilitate the automatic detachment of the hook from the lifeboat. Self-unloading hooks can be controlled wirelessly or by gravity. For hooks controlled by remote control, the operator needs to master the timing of the self-unloading. If the hook continues to move downwards after the lifeboat has been positioned on the transport vehicle, the weight of the hook and the downward pressure may damage the lifeboat. Therefore, this type of hook is rarely used. In addition, for hooks that rely on gravity for self-unloading, the hook will rotate rapidly under the action of gravity during self-unloading. If this force is not buffered or moved away from the lifeboat in time, it may damage the lifeboat and sometimes interfere with the movement of the limit mechanism. Summary of the Invention

[0003] The purpose of this invention is to provide a lifeboat repair and transfer device to overcome the above-mentioned defects in the prior art.

[0004] A lifeboat maintenance and transfer device includes a lifting device, a transfer vehicle, and a limiting mechanism. The lower end of the wire rope of the lifting device is provided with a hook, which is used to hook onto the fixed rings on both sides of the lifeboat. The two sides of the transfer vehicle are respectively provided with limiting plates. The limiting mechanism is provided on the limiting plates and, under the action of the pendulum on the hook, buffers the pendulum while automatically limiting the lifeboat.

[0005] Preferably, the hook includes a lifting ring, a vertical plate, and a hook plate. The lower end of the lifting ring is hinged to the upper end of the vertical plate by a pin, the hook plate is hinged to the lower end of the vertical plate by a pin, and the pendulum is disposed on the side of the hook plate.

[0006] Preferably, the limiting mechanism includes a pressure plate, a positioning rod, and a ratchet disc. A rotating shaft is rotatably connected to the limiting plate. A drive plate is vertically mounted on the front side of the rotating shaft. A torsion spring is sleeved on the rotating shaft. One end of the torsion spring is connected to the limiting plate, and the other end is connected to the rotating shaft. The limiting plate has an arc-shaped groove on the side of the rotating shaft. One end of the arc-shaped groove is connected to a vertical groove, and the other end is connected to a horizontal groove. A sliding plate is mounted on the top of the positioning rod. The sliding plate is slidably connected to a rotating block rotatably connected to the limiting plate. A rod on the sliding plate is inserted into the drive groove and the vertical groove on the drive plate. The pressure plate is rotatably connected to the limiting plate via a connecting shaft. A torsion spring is sleeved on the connecting shaft. One end of the torsion spring is connected to the pressure plate, and the other end is connected to the limiting plate. A pawl that abuts against the ratchet disc is provided on the inner side of the pressure plate.

[0007] Preferably, the upper end of the pressure plate is provided with a rubber pad.

[0008] Preferably, the transfer vehicle is provided with several bottom support seats, and the inner side of the limiting plate is provided with side support seats.

[0009] Preferably, the side of the transfer vehicle is provided with a towing ring that connects to the tractor.

[0010] The present invention has the following advantages:

[0011] In use, this invention features a pendulum on the hook. During hook self-unloading, the rotating pendulum presses against the pressure plate, buffering the weight of the pendulum. Simultaneously, the pendulum causes the pressure plate to rotate downwards, rotating the stop shaft. During this rotation, the positioning rod rotates from a vertical to a horizontal position and inserts into the lifeboat's fixing ring to limit the lifeboat's position. This device buffers the weight of the hook during self-unloading and uses the weight of the hook to limit the pre-positioned lifeboat, eliminating the need for additional driving force to drive the limiting mechanism. Normally, the positioning rod is in a vertical position, preventing interference from the rotating hook. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the hook and limiting mechanism of the present invention.

[0014] Figure 3 This is a schematic diagram of the front structure of the limiting mechanism of the present invention.

[0015] Figure 4 This is a schematic diagram of the rear structure of the limiting mechanism of the present invention.

[0016] The components include: 1. Lifting device; 11. Wire rope; 12. Hook; 121. Pendulum; 122. Lifting ring; 123. Vertical plate; 124. Hook plate; 2. Transfer vehicle; 21. Limiting plate; 211. Arc groove; 212. Vertical groove; 213. Horizontal groove; 3. Limiting mechanism; 31. Rotating shaft; 311. Torsion spring one; 32. Drive plate; 321. Drive groove; 33. Positioning rod; 34. Slide plate; 341. Insert rod; 35. Rotating block; 36. Connecting shaft; 361. Torsion spring two; 37. Ratchet disc; 38. Pressure plate; 39. Pawl; 4. Lifeboat; 41. Fixing ring; 5. Bottom support seat; 6. Side support seat; 7. Traction ring. Detailed Implementation

[0017] The following detailed description of the embodiments, with reference to the accompanying drawings, will further illustrate the specific implementation of the present invention, in order to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the concept and technical solutions of the present invention.

[0018] like Figure 1-4 As shown, the present invention provides a lifeboat maintenance and transfer device, including a lifting device 1, a transfer vehicle 2, and a limiting mechanism 3. The lower end of the wire rope 11 of the lifting device 1 is provided with a hook 12, which is used to hook onto the fixing rings 41 on both sides of the lifeboat 4. The transfer vehicle 2 is provided with limiting plates 21 on both sides. The limiting mechanism 3 is provided on the limiting plates 21 and, under the action of the pendulum 121 on the hook 12, buffers the pendulum 121 while automatically limiting the lifeboat 4. The side of the transfer vehicle 2 is provided with a traction ring 7 connected to a tractor, which facilitates the traction of the transfer vehicle 2 through the traction ring 7.

[0019] It should be noted that the hook 12 includes a lifting ring 122, a vertical plate 123 and a hook plate 124. The lower end of the lifting ring 122 is hinged to the upper end of the vertical plate 123 by a pin, and the hook plate 124 is hinged to the lower end of the vertical plate 123 by a pin. The pendulum 121 is provided on the side of the hook plate 124.

[0020] Furthermore, the limiting mechanism 3 includes a pressure plate 38, a positioning rod 33, and a ratchet disc 37. A rotating shaft 31 is rotatably connected to the limiting plate 21. A drive plate 32 is vertically provided on the front side of the rotating shaft 31. A torsion spring 311 is sleeved on the rotating shaft 31. One end of the torsion spring 311 is connected to the limiting plate 21, and the other end is connected to the rotating shaft 31. The limiting plate 21 has an arc-shaped groove 211 on the side of the rotating shaft 31. One end of the arc-shaped groove 211 communicates with the vertical groove 212, and the other end communicates with the horizontal groove 213. The top of the positioning rod 33 is provided with a sliding... Plate 34 and slide plate 34 are slidably connected to rotating block 35 which is rotatably connected to limiting plate 21. Insert rod 341 on slide plate 34 is inserted into driving groove 321 and vertical groove 212 on driving plate 32. Pressure plate 38 is rotatably connected to limiting plate 21 through connecting shaft 36. Rubber pad is provided at the upper end of pressure plate 38. Torsion spring 361 is sleeved on connecting shaft 36. One end of torsion spring 361 is connected to pressure plate 38 and the other end is connected to limiting plate 21. Pad 39 that abuts against ratchet disc 37 is provided on the inner side of pressure plate 38.

[0021] In addition, the transfer vehicle 2 is equipped with several bottom support seats 5, and the inner side of the limiting plate 21 is provided with side support seats 6 to pre-position the lifeboat 4.

[0022] Detailed implementation methods and principles:

[0023] In practical application, the hook 12 on the wire rope 11 of the lifting device 1 is moved to the fixing ring 41 of the lifeboat 4, and the hook plate 124 of the hook 12 hooks the fixing ring 41. When the wire rope is taut, the hook plate 124 drives the pendulum 121 to rotate. Then, the lifeboat 4 is transferred to the transfer vehicle 2 by the lifting device 1, and the lifeboat 4 is pre-positioned by the bottom support seat 5 and the side support seat 6 on the transfer vehicle 2. Then, the wire rope 11 drives the hook 12 to continue to descend a certain distance, and the hook plate 124 separates from the fixing ring 41. Under the action of the gravity of the pendulum 121 on the hook plate 124, the pendulum 121 rotates in the opposite direction, and the hook plate 124 disengages from the fixing ring 41. During the downward swing of the pendulum 121, it presses the pressure plate 38 downward. The pawl 39 disengages from the ratchet disc 37. Under the action of the first torsion spring 311, the rotating shaft 31 drives the sliding plate 34 and the positioning rod 33 from the vertical state to the horizontal state through the drive plate 32 and inserts into the fixing ring 41 of the lifeboat 4 for limiting. When the wire rope 11 drives the hook 12 away from the pendulum 121, under the action of the second torsion spring 361 on the connecting shaft 36, the pressure plate 38 resets, and the pawl 39 on the pressure plate 38 stops the ratchet disc 37 again. Then, the tractor drives the transfer vehicle 2 to the corresponding position. When it is necessary to release the lifeboat 4 from the limit, the ratchet disc 37 is rotated in the opposite direction, and the positioning rod 33 disengages from the fixing ring 41 of the lifeboat 4, finally making the positioning rod 33 reset to the vertical state, while the pawl 39 stops the ratchet disc 37.

[0024] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the present invention and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A lifeboat maintenance transfer apparatus comprising a hoisting device (1), characterised in that: Also include the transfer car (2) and limiting mechanism (3), the steel wire rope (11) lower end of the lifting device (1) is provided with a lifting hook (12), the lifting hook (12) is used for hooking on the fixed ring (41) on both sides of the lifeboat (4), the both sides of the transfer car (2) are respectively provided with a limiting plate (21), the limiting mechanism (3) is arranged on the limiting plate (21) and is automatically limited to the lifeboat (4) under the action of the pendulum (121) on the lifting hook (12) while buffering the pendulum (121); The lifting hook (12) comprises a lifting ring (122), a vertical plate (123) and a hook plate (124), the lower end of the lifting ring (122) is hinged to the upper end of the vertical plate (123) through a pin shaft, the hook plate (124) is hinged to the lower end of the vertical plate (123) through a pin shaft, and the pendulum (121) is arranged on the side of the hook plate (124); The limiting mechanism (3) comprises a positioning rod (33), a ratchet disc (37) and a pressing plate (38), the limiting plate (21) is rotatably connected with a rotating shaft (31), the front side of the rotating shaft (31) is vertically provided with a driving plate (32), the rotating shaft (31) is sleeved with a torsional spring (311), one end of the torsional spring (311) is connected with the limiting plate (21), the other end is connected with the rotating shaft (31), the limiting plate (21) is provided with an arc-shaped groove (211) on the side of the rotating shaft (31), one end of the arc-shaped groove (211) is communicated with a vertical groove (212), the other end is communicated with a horizontal groove (213), the top of the positioning rod (33) is provided with a sliding plate (34), the sliding plate (34) is slidably connected with a rotating block (35) rotatably connected with the limiting plate (21), the plug rod (341) on the sliding plate (34) is inserted into the driving groove (321) on the driving plate (32) and the vertical groove (212), the pressing plate (38) is rotatably connected with the limiting plate (21) through a connecting shaft (36), the connecting shaft (36) is sleeved with a torsional spring (361), one end of the torsional spring (361) is connected with the pressing plate (38), the other end is connected with the limiting plate (21), the inner side of the pressing plate (38) is provided with a ratchet pawl (39) abutting against the ratchet disc (37); When the lifting hook (12) is unloaded, the rotating pendulum (121) is pressed towards the pressing plate (38), the gravity of the pendulum (121) is buffered, at the same time, the pendulum (121) makes the pressing plate (38) rotate downward, the rotating pendulum (121) makes the fixed rotating shaft (31) rotate, in the process of rotation, the positioning rod (33) is driven to rotate from the vertical state to the horizontal state and is inserted into the fixed ring (41) of the lifeboat (4) to limit the lifeboat (4).

2. A lifeboat maintenance transfer apparatus according to claim 1, characterised in that: The upper end of the pressing plate (38) is provided with a rubber pad.

3. A lifeboat maintenance transfer apparatus according to claim 1, characterised in that: The transfer car (2) is uniformly provided with a plurality of bottom support seats (5), and the inner side of the limiting plate (21) is provided with a side support seat (6).

4. A lifeboat maintenance transfer apparatus according to claim 1, characterised in that: The side of the transfer car (2) is provided with a traction ring (7) connected with a towing vehicle.

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