Cargo hoisting, hoisting, loading and unloading equipment for ship

Abstract

The invention relates to the technical field of ship hoisting equipment, in particular to ship cargo hoisting loading and unloading equipment which comprises a base, a rotating mechanism is rotatably mounted at the top of the base, a rotating disc is fixedly connected to the top of the rotating mechanism, and a secondary telescopic mechanism is slidably mounted at the top of the rotating disc; a connecting base is fixedly connected to the end of the second-stage telescopic mechanism, an angle adjusting mechanism is fixedly connected to the top of the connecting base, and a pulley is rotationally installed at one end of the angle adjusting mechanism. The two-stage telescopic mechanism can be used for adjusting the pulley farther in the linear distance, so that the working application range is widened, the rotating shaft mechanism can be used for adjusting the pulley around the rotating mechanism by a large angle, and the angle adjusting mechanism can be used for adjusting the pulley around the connecting seat by a small angle. And therefore, the hoisting position of the pulley can be adjusted more flexibly.

Description

Technical Field

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

[0002] Water transportation plays an important role in cargo transportation. Generally, a ship hull is required for water transportation. Therefore, a crane is provided on the ship hull. Using the crane to lift the cargo onto the ship hull can greatly save the difficulty of manual handling, thereby avoiding the waste of labor force and also saving the handling cost.

[0003] After retrieval, a Chinese patent with the publication number CN217838168U discloses a ship single-arm telescopic crane. Through the cooperative setting of a fixed frame, a lifting groove, 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 limiting frame, the height of the crane can be adjusted during use, thus playing the role of a wide range of use and achieving the purpose of higher usability. The cooperative setting 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 and folding range of the telescopic crane smaller during use, thereby occupying a smaller working area and thus playing the role of more convenient use. Although this utility model can conveniently adjust the height and improve the range of use, there are still the following problems: 1. Using the third electric telescopic rod to push the mounting seat to drive the telescopic column in the rectangular column to expand and contract, so that the mounting frame can be telescopically adjusted. In actual use, this structure uses a single telescopic structure, resulting in a short adjustment distance of the mounting frame in the horizontal direction, thus reducing the range of use of the lifting and loading and unloading equipment. 2. The support column at the top of the base plays a supporting role in the vertical direction. Ship lifting and loading and unloading equipment usually works by the sea, and the sea breeze is relatively strong by the sea. As a result, the vertically supported support column is eroded by the sea breeze for a long time at a high place. When the sea breeze is strong, the support column may fall over, making the use too dangerous. 3. The mounting seat is linearly expanded and contracted in cooperation with the telescopic column through the third electric push rod, restricting the movement range of the mounting frame. When loading and unloading goods and cooperating with the steel rope, the end of the steel rope can only be linearly expanded and contracted, and the adjustment of the hook position at the end of the linearly expanded and contracted steel rope is not convenient enough, thus making the use of the lifting equipment less convenient.

[0004] In addition, the existing technology lacks a remote control system in operation, greatly reducing the operation convenience and operation efficiency. In view of this, we propose a cargo lifting and loading and unloading equipment for ships. Summary of the Invention

[0005] 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-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: 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 secondary telescopic mechanism slidably mounted on the top of the turntable, a connecting seat fixedly connected to the end of the secondary telescopic mechanism, 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; The secondary telescopic mechanism includes a support column, which is fixedly connected to the top of the turntable. A first telescopic groove is provided on the top of the support column. The first telescopic groove is inclined. A first telescopic rod is slidably connected inside the first telescopic groove. 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 groove is provided at one end of the first telescopic rod. A second telescopic rod is slidably connected in the second telescopic groove. 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.

[0007] 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.

[0008] Preferably, second guide grooves are provided on both sides of the first telescopic rod, rollers are rotatably mounted on both sides of the inner wall of the first telescopic groove, and the rollers are slidably connected inside the second guide grooves.

[0009] 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.

[0010] 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.

[0011] Preferably, a through slot is provided on one side of the fixing sleeve, the transmission belt passes through the through slot, a limiting slot is provided at the bottom of the inner cavity of the fixing 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.

[0012] Preferably, the angle adjustment mechanism includes a fixed column fixedly connected to the top of the connecting seat. A circular groove is formed in the inner cavity of the fixed column. A connecting rod is rotatably connected inside the circular groove. One end of the connecting rod is fixedly connected with a first gear. A second gear meshes with one side of the first gear. The center of the second gear is fixedly connected with a second motor, and the second motor is fixedly connected to the top of the fixed column.

[0013] Preferably, a limiting disc is fixedly connected to the bottom of the first gear. The limiting disc is rotatably connected inside the circular groove. A cross bar is fixedly connected to the top of the connecting rod. A pulley is rotatably installed at the end of the cross bar.

[0014] Preferably, the device further includes a remote control system, and the remote control system is respectively communicatively and electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the first motor, and the second motor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The shipborne cargo lifting and loading and unloading equipment can achieve primary telescoping by driving the first telescopic rod to telescope in the first telescopic groove of the support column through the telescopic shaft of the second hydraulic cylinder, and achieve secondary telescoping by driving the second telescopic rod to telescope in the second telescopic groove through the telescopic shaft of the first hydraulic cylinder. This structure realizes the effect of secondary telescoping, improves the working range of the lifting and loading and unloading equipment, and solves the problem that the telescopic stroke of the primary telescoping structure of the lifting and loading and unloading equipment is short and the working range is small, resulting in inconvenient use.

[0016] 2. The first telescopic groove at the top of the support of the shipborne cargo lifting and loading and unloading equipment is inclined. When the telescopic shaft of the second hydraulic cylinder contracts, it drives the first telescopic rod to contract. When the first telescopic rod contracts obliquely, the height is reduced at the same time, the center of the first telescopic rod is lowered, thereby reducing the risk of sea breeze erosion and being blown down, and improving the safety of use.

[0017] 3. The rotation mechanism of the shipborne 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, so that the turntable rotates. The rotation of the turntable can realize large-angle adjustment of the pulley in the horizontal direction, achieving the purpose of large-angle adjustment of the pulley.

[0018] 4. The shipborne cargo lifting and loading and unloading equipment drives the connecting rod to rotate through the angle adjustment mechanism, the second motor drives and cooperates with the first gear and the second gear, so that the cross bar rotates on the top of the fixed column, and the pulley moves in a circular motion following the cross bar, so that the pulley can realize small-angle adjustment, achieving the purpose of small-angle adjustment of the pulley.

[0019] 5. The cargo hoisting and handling equipment for ships adjusts the linear distance through the cooperation of the secondary telescopic mechanism, adjusts at large angles through the rotating mechanism, and adjusts at small angles through the angle adjustment mechanism. 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 that the telescopic mechanism of the cargo hoisting and handling equipment for ships has a short stroke and the angle adjustment is not flexible enough, resulting in inconvenient use.

[0020] 6. The cargo hoisting and handling equipment for ships controls the first motor, the second hydraulic cylinder, the first hydraulic cylinder, and the second motor respectively through the remote control system to realize large-angle adjustment, primary telescoping, secondary telescoping, and small-angle adjustment respectively, greatly improving the convenience and operation efficiency of remote control. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the front three-dimensional structural schematic diagram of the rotating mechanism in the present invention; Figure 3 is the front three-dimensional structural schematic diagram of the secondary telescopic mechanism in the present invention; Figure 4 is the front three-dimensional structural schematic diagram of the angle adjustment mechanism in the present invention; Figure 5 is Figure 3 the enlarged structural schematic diagram of part A in Figure 6 is Figure 3 the enlarged structural schematic diagram of part B in

[0022] 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, limit groove; 28, limit 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, limit disc; 65, first gear; 66, second gear; 67, second motor; 68, cross bar; 7, pulley. Detailed Embodiments

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 thus cannot be construed as a limitation of the present invention.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "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.

[0027] Please refer to Figures 1 - 6 as shown, the present invention provides a technical solution: A cargo hoisting and loading / unloading device for a ship, comprising a base 1, a rotating mechanism 2 is rotatably installed 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 installed on the top of the turntable 3, a connecting seat 5 is fixedly connected to the end of the secondary telescopic mechanism 4, an angle adjustment mechanism 6 is fixedly connected to the top of the connecting seat 5, and a pulley 7 is rotatably installed at one end of the angle adjustment mechanism 6; The secondary telescopic mechanism 4 includes a support column 401, which is fixedly connected to the top of the turntable 3. A first telescopic groove 402 is formed at the top of the support column 401. The first telescopic groove 402 is inclined. A first telescopic rod 403 is slidably connected inside the first telescopic groove 402. A second hydraulic cylinder 413 is rotatably installed on one side of the turntable 3 near the support column 401. The end of the telescopic shaft of the second hydraulic cylinder 413 is rotatably installed at one end of the first telescopic rod 403. A second telescopic groove 408 is formed at one end of the first telescopic rod 403. A second telescopic rod 409 is slidably connected inside the second telescopic groove 408. A first hydraulic cylinder 410 is fixedly installed at 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; 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 groove 402 of the support column 401. At the same time, the first hydraulic cylinder 410 drives the second telescopic rod 409 to slide obliquely upward in the second telescopic groove 408, thereby realizing the secondary telescopic adjustment function. The rotating mechanism 2 at the top of the base 1 drives the turntable 3 to rotate. 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 perform a circular motion around the connecting seat 5, thereby realizing the small-angle adjustment function of the pulley 7, and further improving the convenience of the lifting and angle adjustment of the pulley 7.

[0028] Particularly in the present invention, a first guiding groove 404 is formed at the bottom of the first telescopic rod 403. A first guiding rod 405 is fixedly connected to the bottom of the inner cavity of the first telescopic groove 402. The first guiding rod 405 is slidably connected inside the first guiding groove 404. Second guiding grooves 406 are formed on both sides of the first telescopic rod 403. Roller 407 is rotatably installed on both sides of the inner wall of the first telescopic groove 402. The roller 407 is slidably connected inside the second guiding groove 406. Positioning grooves 411 are formed on both sides of the inner cavity of the second telescopic groove 408. A positioning rod 412 is slidably connected inside the positioning groove 411. The positioning rod 412 is fixedly connected to the outer wall of the second telescopic rod 409; During use, when the second hydraulic cylinder 413 drives the first telescopic rod 403 to slide, the first telescopic rod 403 slides through the cooperation of the first guiding groove 404 and the first guiding rod 405 in the first telescopic groove 402, so that the first guiding rod 405 can slide stably. When the roller 407 on the inner wall of the first telescopic groove 402 cooperates with the second guiding groove 406 to slide, the roller 407 fits and slides in the second guiding groove 406, making the sliding of the first telescopic rod 403 smoother. When the second telescopic rod 409 expands and contracts, 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.

[0029] In this embodiment, the rotating mechanism 2 includes a fixed sleeve 21. The fixed sleeve 21 is fixedly connected to the top of the base 1. A rotating shaft 22 is rotatably connected inside the fixed sleeve 21. A first pulley 23 is fixedly connected to the outer wall of the rotating shaft 22. A first motor 26 is fixedly installed on one side of the top of the base 1 close to the fixed sleeve 21. A second pulley 24 is fixedly connected to the output end of the first motor 26. The first pulley 23 and the second pulley 24 are drivingly connected by a transmission belt 25. A through groove 29 is formed on one side of the fixed sleeve 21. The transmission belt 25 passes through the through groove 29. A limiting groove 27 is formed at the bottom of the inner cavity of the fixed sleeve 21. A limiting block 28 is fixedly connected to the bottom of the rotating shaft 22. The limiting block 28 is rotatably connected inside the limiting groove 27; During use, the first motor 26 drives the first pulley 23 to rotate. The first pulley 23 drives the second pulley 24 inside 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. The limiting block 28 at the bottom of the rotating shaft 22 rotates inside the limiting groove 27 along with the rotating shaft 22, enabling the rotating shaft 22 to rotate stably. The turntable 3 rotates along with the rotating shaft 22, thus achieving the purpose of rotating the turntable 3.

[0030] As a preferred embodiment of this embodiment, 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 formed inside the fixed column 61. A connecting rod 63 is rotatably connected inside the circular groove 62. A first gear 65 is fixedly connected to the end of the connecting rod 63. A second gear 66 meshes with one side of the first gear 65. A second motor 67 is fixedly connected to the center of the second gear 66. The second motor 67 is fixedly connected to the top of the fixed column 61. A limiting disc 64 is fixedly connected to the bottom of the first gear 65. The limiting disc 64 is rotatably connected inside the circular groove 62. A cross bar 68 is fixedly connected to the top of the connecting rod 63. A pulley 7 is rotatably installed at the end of the cross bar 68; During use, the second motor 67 drives the second gear 66 inside the fixed column 61 to rotate. The second gear 66 drives the first gear 65 to rotate. The connecting rod 63 rotates along with the first gear 65, enabling the connecting rod 63 to rotate. The limiting disc 64 rotates inside the circular groove 62 along with the second gear 66, enabling the connecting rod 63 to rotate stably. The rotation of the connecting rod 63 drives the cross bar 68 to move in a circular motion, so that the pulley 7 can move in a circular motion around the fixed column 61.

[0031] Furthermore, the device further includes a remote control system, and the remote control system is respectively communicatively and electrically connected to the first hydraulic cylinder 410, the second hydraulic cylinder 413, the first motor 26, and the second motor 67.

[0032] The first motor 26, the second hydraulic cylinder 413, the first hydraulic cylinder 410, and the second motor 67 are respectively controlled by the remote control system to respectively achieve large-angle adjustment, primary telescoping, secondary telescoping, and small-angle adjustment, improving the working range of the hoisting and handling equipment, and solving the problem that the telescoping stroke of the primary telescoping structure of the hoisting and handling equipment is short and the working range is small, resulting in inconvenient use. During actual use, the working ranges of the steel rope and the hook are greatly increased and the angle adjustment is more flexible, thus solving the problem that the telescoping mechanism of the shipborne cargo hoisting and handling equipment has a short stroke and inflexible angle adjustment, resulting in inconvenient use.

[0033] When the shipborne cargo hoisting and handling equipment of this embodiment is in use, first, the rotation mechanism 2 is used for 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 passing through the through groove 29. The second pulley 24 drives the rotating shaft 22 to rotate. The rotating shaft 22 rotates in the inner cavity of the fixed sleeve 21 and drives the limiting block 28 to rotate in the limiting groove 27, so that the rotating shaft 22 can rotate stably. The turntable 3 rotates with the rotating shaft 22, so that the pulley 7 moves around the circumference of the fixed sleeve 21. The turntable 3 rotates with the rotating shaft 22, so that the pulley 7 moves around the circumference of the turntable 3, thus achieving large-angle adjustment. The secondary telescoping mechanism 4 is used for linear distance adjustment. The second hydraulic cylinder 413 drives the first telescopic rod 403 to slide obliquely upward in the first telescopic groove 402 of the support column 401. The second telescopic rod 409 slides in cooperation with the first guide rod 405 through the first guide groove 404. The rollers 407 on both sides of the inner wall of the first telescopic groove 402 slide in contact with the second guide groove 406, so that the first telescopic rod 403 can extend and retract stably and smoothly. At this time, the primary telescoping is completed. The first hydraulic cylinder 410 drives the second telescopic rod 409 to slide obliquely upward in the second telescopic groove 408. 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 extend and retract stably. At this time, the secondary telescoping is completed. The second telescopic rod 409 drives the pulley 7 to perform linear distance adjustment again through the connecting seat 5. The angle adjustment mechanism 6 is used. 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. The connecting rod 63 rotates with the first gear 65. The limiting disc 64 rotates with 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 circle, so that the pulley 7 moves in a circle around the fixed column 61, thus enabling the pulley 7 to perform small-angle adjustment. According to the situation of the goods, linear telescopic adjustment and angle adjustment are carried out. At this time, the goods can be lifted, and the lifting of the goods is made more flexible.

[0034] 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 by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A cargo lifting and loading and unloading device for a ship, comprising a base (1), characterized in that: A rotating mechanism (2) is rotatably mounted on the top of the base (1); a rotating disc (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 rotating disc (3); a connecting seat (5) is fixedly connected to the end of the secondary telescopic mechanism (4); an angle adjustment mechanism (6) is fixedly connected to the top of the connecting seat (5); a pulley (7) is rotatably mounted on one end of the angle adjustment mechanism (6); The secondary telescopic mechanism (4) comprises a support column (401), the support column (401) being fixedly connected to the top of the rotating disk (3), a first telescopic slot (402) being provided at the top of the support column (401), the first telescopic slot (402) being inclined, a first telescopic rod (403) being slidably connected inside the first telescopic slot (402), a second hydraulic cylinder (413) being rotatably mounted on a side of the top of the rotating disk (3) close to the support column (401), an end of a telescopic shaft of the second hydraulic cylinder (413) being rotatably mounted on one end of the first telescopic rod (403), a second telescopic slot (408) being provided at one end of the first telescopic rod (403), a second telescopic slot (408) being slidably connected inside a second telescopic slot (408), a first hydraulic cylinder (410) being fixedly mounted on one end of the second telescopic rod (409), and an end of the second telescopic rod (409) being fixedly connected to the bottom of a connecting seat (5).

2. The cargo lifting and unloading equipment for ships according to claim 1, characterized in that: 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).

3. The cargo lifting and unloading equipment for ships according to claim 1, characterized in that: Second guide grooves (406) are provided on both sides of the first telescopic rod (403), and rollers (407) are rotatably mounted on both sides of the inner wall of the first telescopic groove (402), and the rollers (407) are slidably connected inside the second guide grooves (406).

4. The cargo lifting and unloading equipment for ships according to claim 1, characterized in that: 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).

5. 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) being fixedly connected to the top of the base (1), the inner cavity of the fixed sleeve (21) being rotatably connected to a rotating shaft (22), the outer wall of the rotating shaft (22) being fixedly connected to a first pulley (23), a first motor (26) being fixedly mounted on a side of the top of the base (1) close to the fixed sleeve (21), the output end of the first motor (26) being fixedly connected to a second pulley (24), and the first pulley (23) and the second pulley (24) being connected in transmission via a transmission belt (25).

6. The cargo lifting and loading and unloading equipment for ships according to claim 5, 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).

7. The cargo lifting and unloading equipment for ships according to claim 6, characterized in that: The angle adjustment mechanism (6) comprises a fixed column (61), wherein 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), a first gear (65) is fixedly connected to the end of the connecting rod (63), 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).

8. The cargo lifting and loading and unloading equipment for ships according to claim 7, characterized in that: 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).

9. The cargo lifting and unloading equipment for ships according to claim 8, 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) in communication.

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