Cargo hoist and crane for a ship

Abstract

The application relates to the technical field of ship hoisting equipment, in particular to a cargo hoisting and loading / unloading equipment for a ship, which comprises a base, a rotating mechanism rotatably arranged on the top of the base, a rotating disc fixedly connected to the top of the rotating mechanism, a secondary telescopic mechanism slidably arranged on the top of the rotating disc, a connecting seat fixedly connected to the end of the secondary telescopic mechanism, an angle adjusting mechanism fixedly connected to the top of the connecting seat and a pulley rotatably arranged at one end of the angle adjusting mechanism. The secondary telescopic mechanism can make the pulley adjust a farther linear distance, thereby improving the working application range, the rotating shaft mechanism can make the pulley adjust a large angle around the rotating mechanism, and the angle adjusting mechanism can make the pulley adjust a small angle around the connecting seat, so that the position adjustment of the pulley is more flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of ship lifting equipment, in particular to a cargo lifting, loading and unloading equipment for ships. Background Art

[0002] Water transportation plays an important role in cargo transportation. Generally, a hull is required for water transportation. Therefore, a crane is installed on the hull. Using a crane to lift the cargo onto the hull will greatly save the difficulty of manpower handling, thereby avoiding waste of labor and saving transportation costs.

[0003] After searching, the Chinese patent with the announcement number CN217838168U discloses a single-arm telescopic crane for ships. The utility model can adjust the height of the crane during use through the coordinated arrangement of a fixed frame, a lifting slot, a lifting frame, a lifting plate, a fixed column, a lifting block, a support seat, a first electric telescopic rod, a connecting block, a second electric telescopic rod and a limit frame, thereby playing a role in widening the range of use and achieving the purpose of higher usability. The coordinated arrangement of a servo motor, a driving gear, a rotating shaft, a rotating frame, a driven gear, a fixed seat, a telescopic frame, a rectangular column, a connecting seat, a third electric telescopic rod, a mounting seat, a telescopic column and a mounting frame can make the telescopic crane's telescopic and folding range smaller during use, thereby occupying a smaller working area, thereby playing a role in making it more convenient to use. Although the utility model can conveniently adjust the height and improve the range of use, the following problems still exist:

[0004] 1. The third electric telescopic rod is used to push the mounting seat to drive the telescopic column in the rectangular column to extend and retract, so that the mounting frame can be telescopically adjusted. In actual use, the structure adopts a one-time telescopic structure, which makes the horizontal adjustment distance of the mounting frame shorter, thereby reducing the use range of the lifting and loading equipment;

[0005] 2. The support column on the top of the base provides vertical support. Ship lifting and loading equipment usually works at the seaside, where the wind and waves are strong. As a result, the vertical support column is located at a high altitude for a long time and is eroded by the sea wind. When the sea wind is strong, the support column may fall over, which is too dangerous to use.

[0006] 3. The mounting base is extended and retracted linearly through the third electric push rod and the telescopic column, which limits the range of movement of the mounting frame. When used with a steel rope during loading and unloading, the end of the steel rope can only be extended and retracted linearly. The position of the hook at the end of the linearly extended steel rope is not convenient to adjust, making the use of the lifting equipment inconvenient.

[0007] In addition, the existing technical operation lacks a remote control system, which greatly reduces the convenience and efficiency of operation. In view of this, we propose a cargo lifting, hoisting and loading and unloading equipment for ships. Summary of the Invention

[0008] The object of the present invention is to provide a cargo lifting and loading and unloading device for ships to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A cargo lifting and loading and unloading device for ships, comprising a base, a rotating mechanism rotatably mounted on the top of the base, a turntable fixedly connected to the top of the rotating mechanism, a two-stage telescopic mechanism slidably mounted on the top of the turntable, an end of the two-stage telescopic mechanism fixedly connected to a connecting seat, an angle adjustment mechanism fixedly connected to the top of the connecting seat, and a pulley rotatably mounted on one end of the angle adjustment mechanism;

[0011] The secondary telescopic mechanism includes a support column, which is fixedly connected to the top of the turntable. A first telescopic slot is provided on the top of the support column, and the first telescopic slot is inclined. A first telescopic rod is slidably connected inside the first telescopic slot. A second hydraulic cylinder is rotatably installed on the top of the turntable close to the support column. The end of the telescopic shaft of the second hydraulic cylinder is rotatably installed on one end of the first telescopic rod. A second telescopic slot is provided at one end of the first telescopic rod, and a second telescopic rod is slidably connected in the second telescopic slot. The first hydraulic cylinder is fixedly installed on one end of the second telescopic rod, and the end of the second telescopic rod is fixedly connected to the bottom of the connecting seat.

[0012] Preferably, a first guide groove is formed at the bottom of the first telescopic rod, a first guide rod is fixedly connected to the bottom of the inner cavity of the first telescopic groove, and the first guide rod is slidably connected to the inside of the first guide groove.

[0013] Preferably, second guide grooves are provided on both sides of the first telescopic rod, and rollers are rotatably mounted on both sides of the inner wall of the first telescopic groove, and the rollers are slidably connected to the inside of the second guide grooves.

[0014] Preferably, positioning grooves are provided on both sides of the inner cavity of the second telescopic groove, and a positioning rod is slidably connected in the positioning groove, and the positioning rod is fixedly connected to the outer wall of the second telescopic rod.

[0015] Preferably, the rotating mechanism includes a fixed sleeve, which is fixedly connected to the top of the base, a rotating shaft is rotatably connected to the inner cavity of the fixed sleeve, a first pulley is fixedly connected to the outer wall of the rotating shaft, a first motor is fixedly installed on the top of the base close to the fixed sleeve, a second pulley is fixedly connected to the output end of the first motor, and the first pulley and the second pulley are connected by a transmission belt.

[0016] Preferably, a through slot is provided on one side of the fixed sleeve, the transmission belt passes through the through slot, a limiting slot is provided at the bottom of the inner cavity of the fixed sleeve, a limiting block is fixedly connected to the bottom of the rotating shaft, and the limiting block is rotatably connected to the inside of the limiting slot.

[0017] Preferably, the angle adjustment mechanism includes a fixed column, which is fixedly connected to the top of the connecting seat. A circular groove is provided in the inner cavity of the fixed column. A connecting rod is rotatably connected inside the circular groove. The end of the connecting rod is fixedly connected to a first gear. A second gear is engaged with one side of the first gear. A second motor is fixedly connected to the axis of the second gear. The second motor is fixedly connected to the top of the fixed column.

[0018] Preferably, the bottom of the first gear is fixedly connected to a limit plate, the limit plate is rotatably connected to the inside of the circular groove, the top of the connecting rod is fixedly connected to a cross bar, and the pulley is rotatably installed on the end of the cross bar.

[0019] Preferably, the device further comprises a remote control system, and the remote control system is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the first motor and the second motor respectively.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The ship cargo lifting and loading and unloading equipment drives the first telescopic rod to extend and retract in the first telescopic slot of the support column through the second hydraulic cylinder telescopic shaft, which can achieve one-level extension and retraction. The first hydraulic cylinder telescopic shaft drives the second telescopic rod to extend and retract in the second telescopic slot, which is a two-level extension and retraction. This structure achieves a two-level extension and retraction effect, improves the working range of the lifting and loading and unloading equipment, and solves the problem of the short extension stroke and small working range of the first-level telescopic structure of the lifting and loading and unloading equipment, resulting in inconvenience in use.

[0022] 2. The cargo lifting and loading and unloading equipment for ships is tilted by supporting the first telescopic slot on the top. When the telescopic shaft of the second hydraulic cylinder contracts, it drives the first telescopic rod to contract. The first telescopic rod is tilted and contracted and the height is lowered at the same time, so that the center of the first telescopic rod is lowered, thereby reducing the risk of erosion and blowing down by sea breeze and improving safety in use.

[0023] 3. The rotating mechanism of the ship cargo lifting and loading and unloading equipment drives the first pulley to rotate through the first motor. The first pulley, the second pulley and the transmission belt cooperate to drive the rotating shaft to rotate in the inner cavity of the fixed sleeve, thereby causing the turntable to rotate. The rotation of the turntable can realize a large angle adjustment of the pulley in the horizontal direction, thereby achieving the purpose of large angle adjustment of the pulley.

[0024] 4. The ship cargo lifting and loading and unloading equipment uses an angle adjustment mechanism. The second motor drives the first gear and the second gear to drive the connecting rod to rotate, so that the cross bar located on the top of the fixed column rotates, and the pulley follows the circular motion of the cross bar, so that the pulley can be adjusted at a small angle, achieving the purpose of small angle adjustment of the pulley.

[0025] 5. The ship cargo lifting and loading and unloading equipment uses a two-level telescopic mechanism to adjust the linear distance, a rotating mechanism to adjust the large angle, and an angle adjustment mechanism to adjust the small angle. In actual use, the working range of the steel rope and the hook is greatly increased and the angle adjustment is more flexible, thus solving the problem of the short stroke of the telescopic mechanism of the ship cargo lifting and loading and unloading equipment and the inflexible angle adjustment, which makes it inconvenient to use.

[0026] 6. The ship cargo lifting and loading and unloading equipment controls the first motor, the second hydraulic cylinder, the first hydraulic cylinder, and the second motor respectively through the remote control system to achieve large-angle adjustment, first-level telescopic, second-level telescopic, and small-angle adjustment, greatly improving the convenience and operating efficiency of remote control. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the front three-dimensional structure of the rotating mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the front three-dimensional structure of the secondary telescopic mechanism of the present invention;

[0030] Figure 4 This is a schematic diagram of the front three-dimensional structure of the angle adjustment mechanism of the present invention;

[0031] Figure 5 for Figure 3 A schematic diagram of the structure at center A;

[0032] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B.

[0033] In the figure: 1. base; 2. rotating mechanism; 21. fixed sleeve; 22. rotating shaft; 23. first pulley; 24. second pulley; 25. transmission belt; 26. first motor; 27. limiting groove; 28. limiting block; 29. ​​through groove; 3. turntable; 4. secondary telescopic mechanism; 401. support column; 402. first telescopic groove; 403. first telescopic rod; 404. first guide groove; 405. first guide rod; 406. second guide groove; 407. roller; 408. second telescopic groove; 409. second telescopic rod; 410. first hydraulic cylinder; 411. positioning groove; 412. positioning rod; 413. second hydraulic cylinder; 5. connecting seat; 6. angle adjustment mechanism; 61. fixed column; 62. circular groove; 63. connecting rod; 64. limiting plate; 65. first gear; 66. second gear; 67. second motor; 68. cross bar; 7. pulley. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "several" means two or more, unless otherwise specifically defined.

[0038] See also Figures 1-6 As shown, the present invention provides a technical solution:

[0039] A cargo lifting and loading and unloading device for ships comprises a base 1, a rotating mechanism 2 being rotatably mounted on the top of the base 1, a turntable 3 being fixedly connected to the top of the rotating mechanism 2, a secondary telescopic mechanism 4 being slidably mounted on the top of the turntable 3, an end of the secondary telescopic mechanism 4 being fixedly connected to a connecting seat 5, an angle adjustment mechanism 6 being fixedly connected to the top of the connecting seat 5, and a pulley 7 being rotatably mounted on one end of the angle adjustment mechanism 6;

[0040] The secondary telescopic mechanism 4 includes a support column 401, which is fixedly connected to the top of the turntable 3. A first telescopic slot 402 is provided on the top of the support column 401. The first telescopic slot 402 is tilted, and a first telescopic rod 403 is slidably connected inside the first telescopic slot 402. A second hydraulic cylinder 413 is rotatably installed on the side of the top of the turntable 3 close to the support column 401. The end of the telescopic shaft of the second hydraulic cylinder 413 is rotatably installed on one end of the first telescopic rod 403. A second telescopic slot 408 is provided on one end of the first telescopic rod 403. A second telescopic slot 408 is slidably connected to the second telescopic slot 408. A first hydraulic cylinder 410 is fixedly installed on one end of the second telescopic rod 409. The end of the second telescopic rod 409 is fixedly connected to the bottom of the connecting seat 5.

[0041] During use, the second hydraulic cylinder 413 of the secondary telescopic mechanism 4 drives the first telescopic rod 403 to slide obliquely upward in the first telescopic slot 402 of the support column 401, and at the same time, the first hydraulic cylinder 410 drives the second telescopic rod 409 to slide obliquely upward in the second telescopic slot 408, thereby realizing the secondary telescopic adjustment function. The turntable 3 is driven to rotate by the rotating mechanism 2 on the top of the base 1, and the pulley 7 can perform a circular motion around the rotating mechanism 2 for large angle adjustment. The angle adjustment mechanism 6 cooperates with the pulley 7 to move in a circle around the connecting seat 5, thereby realizing the small angle adjustment function of the pulley 7, thereby improving the convenience of lifting and lowering and angle adjustment of the pulley 7.

[0042] In particular, in the present invention, a first guide groove 404 is defined at the bottom of the first telescopic rod 403, a first guide rod 405 is fixedly connected to the bottom of the inner cavity of the first telescopic groove 402, the first guide rod 405 is slidably connected to the inside of the first guide groove 404, second guide grooves 406 are defined on both sides of the first telescopic rod 403, rollers 407 are rotatably installed on both sides of the inner wall of the first telescopic groove 402, the rollers 407 are slidably connected to the inside of the second guide groove 406, positioning grooves 411 are defined on both sides of the inner cavity of the second telescopic groove 408, a positioning rod 412 is slidably connected in the positioning groove 411, and the positioning rod 412 is fixedly connected to the outer wall of the second telescopic rod 409;

[0043] During use, when the first telescopic rod 403 is driven to slide by the second hydraulic cylinder 413, the first telescopic rod 403 slides through the first guide groove 404 in cooperation with the first guide rod 405 in the first telescopic groove 402, so that the first guide rod 405 can slide stably, and when the roller 407 on the inner wall of the first telescopic groove 402 slides in cooperation with the second guide groove 406, the roller 407 slides in contact with the second guide groove 406, so that the first telescopic rod 403 slides more smoothly, and when the second telescopic rod 409 is extended or retracted, the second telescopic rod 409 drives the positioning rod 412 to slide in the positioning groove 411, so that the second telescopic rod 409 can slide stably.

[0044] In this embodiment, the rotating mechanism 2 includes a fixed sleeve 21, which is fixedly connected to the top of the base 1. The inner cavity of the fixed sleeve 21 is rotatably connected to the rotating shaft 22, and the outer wall of the rotating shaft 22 is fixedly connected to the first pulley 23. A first motor 26 is fixedly installed on the top of the base 1 near the fixed sleeve 21. The output end of the first motor 26 is fixedly connected to the second pulley 24. The first pulley 23 and the second pulley 24 are connected by a transmission belt 25. A through groove 29 is provided on one side of the fixed sleeve 21, and the transmission belt 25 passes through the through groove 29. A limiting groove 27 is provided at the bottom of the inner cavity of the fixed sleeve 21, and a limiting block 28 is fixedly connected to the bottom of the rotating shaft 22. The limiting block 28 is rotatably connected to the inside of the limiting groove 27;

[0045] When in use, the first pulley 23 is driven to rotate by the first motor 26, and the first pulley 23 drives the second pulley 24 in the inner cavity of the fixed sleeve 21 to rotate through the transmission belt 25. The transmission belt 25 passes through the through groove 29 for stable transmission. The rotation of the second pulley 24 causes the rotating shaft 22 to rotate, and the limit block 28 at the bottom of the rotating shaft 22 follows the rotating shaft 22 and rotates in the limit groove 27, so that the rotating shaft 22 can rotate stably, and the turntable 3 follows the rotating axis of the rotating shaft 22, thereby achieving the purpose of rotating the turntable 3.

[0046] As a preferred implementation manner of this embodiment, the angle adjustment mechanism 6 includes a fixed column 61, which is fixedly connected to the top of the connecting seat 5. A circular groove 62 is opened in the inner cavity of the fixed column 61, and a connecting rod 63 is rotatably connected inside the circular groove 62. The end of the connecting rod 63 is fixedly connected to a first gear 65, and a second gear 66 is engaged with one side of the first gear 65. A second motor 67 is fixedly connected to the axis of the second gear 66. The second motor 67 is fixedly connected to the top of the fixed column 61, and the bottom of the first gear 65 is fixedly connected to a limit plate 64. The limit plate 64 is rotatably connected to the inside of the circular groove 62. The top of the connecting rod 63 is fixedly connected to a cross bar 68, and the pulley 7 is rotatably mounted on the end of the cross bar 68;

[0047] During use, the second motor 67 drives the second gear 66 in the inner cavity of the fixed column 61 to rotate, the second gear 66 drives the first gear 65 to rotate, and the connecting rod 63 follows the first gear 65 to rotate, so that the connecting rod 63 can rotate, and the limit plate 64 follows the second gear 66 to rotate in the circular groove 62, so that the connecting rod 63 rotates stably, and the rotation of the connecting rod 63 drives the cross bar 68 to move in a circle, so that the pulley 7 can move in a circle around the fixed column 61.

[0048] Furthermore, the device also includes a remote control system, which is electrically connected to the first hydraulic cylinder 410, the second hydraulic cylinder 413, the first motor 26, and the second motor 67 respectively.

[0049] The first motor 26, the second hydraulic cylinder 413, the first hydraulic cylinder 410, and the second motor 67 are controlled respectively by the remote control system to realize large angle adjustment, first-level telescopic, second-level telescopic and small angle adjustment respectively, thereby improving the working range of the lifting and hoisting loading and unloading equipment, and solving the problem that the first-level telescopic structure of the lifting and loading equipment has a short telescopic stroke and a small working range, resulting in inconvenience in use. In actual use, the working range of the steel rope and the hook is greatly increased and the angle adjustment is more flexible, thereby solving the problem that the telescopic mechanism of the ship cargo lifting and loading and unloading equipment has a short stroke and is not flexible in angle adjustment, resulting in inconvenience in use.

[0050] When the cargo lifting and loading and unloading equipment for ships of this embodiment is in use, the rotating mechanism 2 is first used to perform large-angle adjustment. The first motor 26 on the base 1 drives the first pulley 23 to rotate. The first pulley 23 drives the second pulley 24 to rotate through the transmission belt 25 that passes through the through groove 29. The second pulley 24 drives the rotating shaft 22 to rotate. The rotating shaft 22 is located in the inner cavity of the fixed sleeve 21 and rotates, and drives the limit block 28 located in the limit groove 27 to rotate, so that the rotating shaft 22 can rotate stably. The turntable 3 rotates following the rotating shaft 22, so that the pulley 7 moves in a circle around the fixed sleeve 21. The turntable 3 rotates following the rotating shaft 22, so that the pulley 7 moves in a circle around the turntable 3, thereby achieving large-angle adjustment.

[0051] The linear distance is adjusted using the secondary telescopic mechanism 4. The second hydraulic cylinder 413 drives the first telescopic rod 403 to slide obliquely upward in the first telescopic slot 402 of the support column 401. The second telescopic rod 409 slides in conjunction with the first guide rod 405 through the first guide slot 404. The rollers 407 on both sides of the inner wall of the first telescopic slot 402 slide in contact with the second guide slot 406, allowing the first telescopic rod 403 to extend and retract stably and smoothly. At this point, the primary telescopic movement is completed.

[0052] The first hydraulic cylinder 410 drives the second telescopic rod 409 to slide obliquely upward in the second telescopic slot 408. The second telescopic rod 409 drives the positioning rod 412 to slide in the positioning slot 411, so that the second telescopic rod 409 can stably telescope and slide. At this time, the second telescopic rod 409 completes the secondary telescopic movement. The second telescopic rod 409 drives the pulley 7 through the connecting seat 5 to adjust the linear distance.

[0053] By using the angle adjustment mechanism 6, the second motor 67 drives the second gear 66 in the inner cavity of the fixed column 61 to rotate, and the second gear 66 drives the first gear 65 to rotate. The connecting rod 63 rotates following the first gear 65, and the limit plate 64 rotates following the first gear 65 in the circular groove 62, so that the connecting rod 63 can rotate stably. The connecting rod 63 drives the cross bar 68 to move in a circular motion, so that the pulley 7 moves in a circular motion around the fixed column 61, so that the pulley 7 can be adjusted at a small angle.

[0054] The linear telescopic adjustment and angle adjustment are performed according to the situation of the cargo. At this time, the cargo can be lifted, and the lifting of the cargo is made more flexible.

[0055] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cargo lifting and loading and unloading device for ships, comprising a base (1), characterized in that: A rotating mechanism (2) is rotatably mounted on the top of the base (1), a turntable (3) is fixedly connected to the top of the rotating mechanism (2), a secondary telescopic mechanism (4) is slidably mounted on the top of the turntable (3), an end of the secondary telescopic mechanism (4) is fixedly connected to a connecting seat (5), an angle adjustment mechanism (6) is fixedly connected to the top of the connecting seat (5), and a pulley (7) is rotatably mounted on one end of the angle adjustment mechanism (6); The secondary telescopic mechanism (4) includes a support column (401), the support column (401) is fixedly connected to the top of the turntable (3), a first telescopic slot (402) is provided on the top of the support column (401), the first telescopic slot (402) is tilted, a first telescopic rod (403) is slidably connected inside the first telescopic slot (402), a second hydraulic cylinder (413) is rotatably installed on the top of the turntable (3) near the support column (401), the end of the telescopic shaft of the second hydraulic cylinder (413) is rotatably installed on one end of the first telescopic rod (403), a second telescopic slot (408) is provided on one end of the first telescopic rod (403), a second telescopic slot (408) is slidably connected to the second telescopic slot (408), a first hydraulic cylinder (410) is fixedly installed on one end of the second telescopic rod (409), and the end of the second telescopic rod (409) is fixedly connected to the bottom of the connecting seat (5); A first guide groove (404) is provided at the bottom of the first telescopic rod (403); a first guide rod (405) is fixedly connected to the bottom of the inner cavity of the first telescopic groove (402); and the first guide rod (405) is slidably connected to the inside of the first guide groove (404); Second guide grooves (406) are provided on both sides of the first telescopic rod (403); rollers (407) are rotatably mounted on both sides of the inner wall of the first telescopic groove (402); the rollers (407) are slidably connected to the inside of the second guide grooves (406); Positioning grooves (411) are provided on both sides of the inner cavity of the second telescopic groove (408), and a positioning rod (412) is slidably connected in the positioning groove (411), and the positioning rod (412) is fixedly connected to the outer wall of the second telescopic rod (409).

2. The cargo lifting and unloading equipment for ships according to claim 1, characterized in that: The rotating mechanism (2) comprises a fixed sleeve (21), the fixed sleeve (21) is fixedly connected to the top of the base (1), the inner cavity of the fixed sleeve (21) is rotatably connected to a rotating shaft (22), the outer wall of the rotating shaft (22) is fixedly connected to a first pulley (23), a first motor (26) is fixedly installed on the top of the base (1) near the fixed sleeve (21) side, the output end of the first motor (26) is fixedly connected to a second pulley (24), and the first pulley (23) and the second pulley (24) are connected to each other through a transmission belt (25).

3. The cargo lifting and loading and unloading equipment for ships according to claim 2, characterized in that: A through slot (29) is provided on one side of the fixing sleeve (21), the transmission belt (25) passes through the through slot (29), a limiting slot (27) is provided at the bottom of the inner cavity of the fixing sleeve (21), a limiting block (28) is fixedly connected to the bottom of the rotating shaft (22), and the limiting block (28) is rotatably connected to the inside of the limiting slot (27).

4. The cargo lifting and unloading equipment for ships according to claim 3, characterized in that: The angle adjustment mechanism (6) includes a fixed column (61), the fixed column (61) is fixedly connected to the top of the connecting seat (5), a circular groove (62) is provided in the inner cavity of the fixed column (61), a connecting rod (63) is rotatably connected inside the circular groove (62), the end of the connecting rod (63) is fixedly connected to a first gear (65), a second gear (66) is meshed with one side of the first gear (65), a second motor (67) is fixedly connected to the axis of the second gear (66), and the second motor (67) is fixedly connected to the top of the fixed column (61).

5. The cargo lifting and unloading equipment for ships according to claim 4, characterized in that: The bottom of the first gear (65) is fixedly connected to a limit plate (64), and the limit plate (64) is rotatably connected to the inside of the circular groove (62). The top of the connecting rod (63) is fixedly connected to a cross bar (68), and the pulley (7) is rotatably mounted on the end of the cross bar (68).

6. The cargo lifting and unloading equipment for ships according to claim 5, characterized in that: The device also includes a remote control system, which is electrically connected to the first hydraulic cylinder (410), the second hydraulic cylinder (413), the first motor (26), and the second motor (67).

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