Marine elevator with high stability

Abstract

The invention discloses a high-stability marine lifter which comprises a lifter shell, a lower bottom plate and a lifting platform, a lug plate is fixedly connected to the center of one side face of the lifter shell, and the lug plate is used for being connected with a trailer and dragging the marine lifter. A lower bottom plate is fixedly connected to the lower portion of the elevator shell, four rolling wheels are fixedly connected to the lower portion of the lower bottom plate, a start-stop button is fixedly connected to the side face of the elevator shell, an upper bottom plate is connected to the upper portion of the elevator shell, through holes are formed in the four corners of the upper bottom plate, and first bearings are fixedly connected to the through holes of the upper bottom plate. The first bearing is fixedly connected with a rotating shaft, the rotating shaft penetrates through the upper bottom plate and is rotationally connected with the upper bottom plate, the bottom end of the rotating shaft is fixedly connected with a second bearing, the second bearing is fixedly connected to the lower bottom plate, the lower bottom plate is rotationally connected with the rotating shaft, and the device solves the problem that an existing marine elevator is prone to shaking due to uneven stress.

Description

Technical Field

[0001] The invention relates to the technical field of lifting platforms, in particular to a ship lift with high stability. Background Art

[0002] Ships are man-made vehicles that mainly operate in water. In maritime transportation, ships play a major role, so the use of elevators for transporting, loading cargo and repairing on board ships is becoming more and more widespread. The existing ship lifts have uneven force due to the lifting structure problems, especially the ship shakes and tilts under the action of waves at sea, causing the goods on the lifting platform to be deformed and damaged, and the safety of the staff cannot be guaranteed. In addition, the lifts are bulky and the stability of the lifts is poor. Therefore, it is necessary to provide a ship lift with high stability to solve the problem that the lifting platform shakes and tilts due to waves on the ship on the sea, and the traditional lift is time-consuming and labor-intensive to fix in position. Summary of the invention

[0003] The object of the present invention is to provide a ship elevator with high stability to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: A marine elevator with high stability comprises a lift shell, a lower bottom plate and a lifting platform, wherein a lug plate is fixedly connected to the center of one side of the lift shell, and the lug plate is used to connect with a trailer and drag the marine elevator, the lower part of the lift shell is fixedly connected to the lower bottom plate, and the lower part of the lower bottom plate is fixedly connected to four rollers, and the rollers are used to move the marine elevator, and a start-stop button is fixedly connected to the side of the lift shell, and the start-stop button is used to control the start and stop of the marine elevator; An upper base plate is connected to the upper part of the lift shell, and the upper base plate is a rectangular frame passing through the center, and through holes are provided at the four corners of the upper base plate, and a bearing 1 is fixedly connected to the through hole of the upper base plate, and a rotating shaft is fixedly connected to the bearing 1, and the rotating shaft passes through and is rotatably connected to the upper base plate, and a bearing 2 is fixedly connected to the bottom end of the rotating shaft, and the bearing 2 is fixedly connected to the lower base plate, and the lower base plate is rotatably connected to the rotating shaft, and a leg is rotatably connected to the rotating shaft in the middle of the upper base plate and the lower base plate, and a threaded hole is provided at the other end of the leg, and a support screw is meshed and connected to the threaded hole of the leg, and the bottom end of the support screw is fixedly connected to a leg base, and the leg base is used to fix the position of the lift; The top of the support screw is fixedly connected with a pulley 1, a V-belt is arranged in the groove of the pulley 1, the other end of the V-belt is connected with a pulley 2, the pulley 2 is fixedly connected to the surface of the rotating shaft, and the bottom end surface of the pulley 2 is in contact with the upper surface of the upper base plate; A hydraulic press fixing frame is fixedly connected to the top of the lower base plate, and bearing three is fixedly connected to the middle of both sides of the hydraulic press fixing frame, and a transmission screw is fixedly connected to the bearing three, and a slider is penetrated through the surface of the transmission screw, and a threaded hole is penetrated inside the slider, and the threaded hole of the slider is engaged with the thread on the surface of the transmission screw, and one side of the other end surface of the slider is fixedly connected to a pin shaft one, and the pin shaft one is rotatably connected to a support rod, and the top of the support rod is fixedly connected to a pin shaft two, and the pin shaft two is rotatably connected to a slide groove, and the slide groove is slidably connected to a slide rail, and the slide rail is fixedly connected to the lifting platform, and a guardrail is fixedly connected above the lifting platform, and the guardrail is used to protect the staff and the transported goods; The other side of the transmission screw is fixedly connected with a bearing four, and the bearing four is fixedly connected with a bearing seat, the bearing seat is fixedly connected to the transmission screw, and the bearing seat is fixedly connected to the top of the lower base plate, and the side of the bearing seat is fixedly connected with a pin shaft three, and the pin shaft three is rotatably connected with a connecting rod, and the connecting rod is rotatably connected to the bearing seat, and the other end of the connecting rod is fixedly connected with a pin shaft four, and the pin shaft four is rotatably connected to the middle part of the support rod, and the connecting rod is rotatably connected to the support rod; A hydraulic cylinder 1 is fixedly connected inside the hydraulic fixing frame, and a movable rod of the hydraulic cylinder 1 is rotatably connected to the bottom of the lifting platform. A hydraulic cylinder 2 is fixedly connected at each corner above the lower bottom plate, and a movable rod of the hydraulic cylinder 2 is fixedly connected to the bottom of the lifting platform. The hydraulic cylinder 1 and the hydraulic cylinder 2 are controlled by a start-stop button. A motor is fixedly connected to one side of the movable direction of the elevator housing, a rotating rod of the motor is fixedly connected to a worm wheel 1, the worm wheel 1 is meshedly connected to a worm, the two top ends of the worm are fixedly connected to bearings 5, the two bearings 5 ​​are fixedly connected to the two sides of the elevator housing, the worm is rotatably connected to the elevator housing, the two sides of the worm are meshedly connected to worm wheels 2, the worm wheel 2 is fixedly connected to a vertical rod 1, the top end of the vertical rod 1 is rotatably connected to the upper base plate, and the bottom end of the vertical rod 1 is rotatably connected to the lower base plate; The surface of the vertical rod 1 is fixedly connected with gear 1, the gear 1 is meshedly connected with gear 2, the gear 2 is fixedly connected with vertical rod 2, the top end of the vertical rod 2 is rotatably connected with the upper bottom plate, the bottom end of the vertical rod 2 is rotatably connected with the lower bottom plate, the gear 2 is meshedly connected with gear 3, and the center of the gear 3 is fixedly connected with the rotating shaft; The support screw is meshed and connected with a worm gear turntable, and the center of the worm gear turntable is fixedly connected with a pin shaft five, and the pin shaft five is rotatably connected to the inside of the leg, and the leg is rotatably connected to the worm gear turntable, and a limit rod is connected through the inside of the worm gear turntable, and the limit rod is connected through the leg, and a through hole of the limit rod movable track is provided on one side of the leg, and the limit rod is provided with a conical protrusion at the top end of the outside of the leg, and the conical protrusion of the limit rod is embedded in the elevator shell, and the elevator shell and the embedding part of the limit rod are provided with a through hole. The inner side of the leg is rotatably connected with a pin shaft six, and the pin shaft six is ​​rotatably connected with a pressure rod, and the pressure rod is rotatably connected to the leg. The pressure rod is a bent rod, and one end of the pressure rod is in contact with the surface of the limit rod. The positioning rod is used to fix the other end of the pressure rod, and the pressure rod is used to prevent gear three from rotating relative to the leg in the initial stage of starting the marine elevator.

[0005] The present invention further describes that the internal through hole of the upper base plate is the same size as the opening of the elevator shell, and ribs are provided at the four corners of the through hole for fixing the vertical rod 1 and the vertical rod 2.

[0006] The present invention further describes that the maximum length of the slide rail installation is determined according to the maximum height that the elevator needs to rise.

[0007] The present invention further describes that the hydraulic cylinder one and the hydraulic cylinder two can adopt multi-section hydraulic cylinders according to different lifting heights.

[0008] The present invention further describes that a through hole is provided at the bent portion of the pressure rod, and the portion contacting the positioning rod is heavier than the portion contacting the limiting rod, with the through hole serving as a boundary.

[0009] The present invention further describes that the height of the conical protrusion of the limiting rod is in the range of 2-5 mm, and in the closed state, the bottom of the conical protrusion just contacts the inner wall of the elevator housing.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention adopts multiple hydraulic cylinder supports and controls the retraction of the hydraulic cylinders through a horizontal sensor, thereby solving the problem of large shaking of the lifting platform caused by waves on the sea surface; by setting a worm gear transmission, the problem of time-consuming and labor-intensive fixing of the traditional lift is solved; by setting a pressure rod and a worm gear turntable, the fixed legs are automatically stopped during the extension and retraction process, effectively solving the problem of the lift tilting caused by uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a partial enlarged schematic diagram of a leg of an embodiment of the present invention; Figure 3 It is a front view cross-sectional schematic diagram of the internal structure of an embodiment of the present invention; Figure 4 is a partial enlarged view of the internal structure of an embodiment of the present invention; Figure 5 It is a side cross-sectional view of the internal structure of an embodiment of the present invention; Figure 6 This is a schematic diagram of the interior of a leg of an embodiment of the present invention; Figure 7 is a front view schematic diagram of the external structure of a leg according to an embodiment of the present invention; Figure 8 is a schematic diagram of the external top view structure of the support leg of an embodiment of the present invention; Fig. 9 It is a schematic diagram of the structure of the engaging portion between the supporting legs and the housing of the elevator according to an embodiment of the present invention; In the figure: 1. lift shell; 2. ear plate; 3. lower base plate; 4. roller; 5. upper base plate; 6. rotating shaft; 7. outrigger; 8. support screw; 9. outrigger base; 10. pulley 1; 11. V-belt; 12. pulley 2; 13. hydraulic press fixing frame; 14. transmission screw; 15. slider; 16. support rod; 17. slide groove; 18. slide rail; 19. lifting platform; 20. guardrail; 21. bearing seat; 22. connecting rod; 23. start-stop button; 24. hydraulic cylinder 1; 25. hydraulic cylinder 2; 26. motor; 27. worm gear 1; 28. worm; 29. ​​worm gear 2; 30. vertical rod 1; 31. gear 1; 32. gear 2; 33. vertical rod 2; 34. gear 3; 35. worm gear turntable; 36. limit rod; 37. pressure rod; 38. positioning rod. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0013] See also Figure 1 — Figure 2 , the present invention provides a technical solution: a ship elevator with high stability, including an elevator shell 1, a lower bottom plate 3 and a lifting platform 19; An ear plate 2 is fixedly connected to the center of one side of the lift housing 1, and the ear plate 2 is used to connect to the trailer and to drag the marine lift. A lower bottom plate 3 is fixedly connected to the bottom of the lift housing 1, and four rollers 4 are fixedly connected to the bottom of the lower bottom plate 3. The rollers 4 are used to move the marine lift. A start-stop button 23 is fixedly connected to the side of the lift housing 1, and the start-stop button 23 is used to control the start and stop of the marine lift. An upper base plate 5 is connected to the upper part of the lift housing 1. The upper base plate 5 is a rectangular frame that runs through the center. Through holes are provided at the four corners of the upper base plate 5. A bearing 1 is fixedly connected to the through hole of the upper base plate 5. A rotating shaft 6 is fixedly connected to the bearing 1. The rotating shaft 6 passes through the upper base plate 5 and is rotatably connected. A bearing 2 is fixedly connected to the bottom end of the rotating shaft 6. The bearing 2 is fixedly connected to the lower base plate 3. The lower base plate 3 is rotatably connected to the rotating shaft 6. In the middle of the upper base plate 5 and the lower base plate 3, the rotating shaft 6 is rotatably connected to a support leg 7. A threaded hole is provided at the other end of the support leg 7. A support screw 8 is meshed and connected to the threaded hole of the support leg 7. The bottom end of the support screw 8 is fixedly connected to a support leg base 9. The support leg base 9 is used to fix the position of the lift. The top of the support screw 8 is fixedly connected with a pulley 10, a V-belt 11 is arranged in the groove of the pulley 10, the other end of the V-belt 11 is connected with a pulley 2 12, the pulley 2 12 is fixedly connected to the surface of the rotating shaft 6, and the bottom end surface of the pulley 2 12 is in contact with the upper surface of the upper base plate 5; A hydraulic press fixing frame 13 is fixedly connected to the top of the lower bottom plate 3, and bearing three is fixedly connected to the middle of both sides of the hydraulic press fixing frame 13, and a driving screw 14 is fixedly connected to the bearing three, and a slider 15 is penetrated and connected to the surface of the driving screw 14, and a threaded hole is penetrated inside the slider 15, and the threaded hole of the slider 15 is engaged with the thread on the surface of the driving screw 14, and one side of the other end surface of the slider 15 is fixedly connected to a pin shaft 1, and the pin shaft 1 is rotatably connected to a support rod 16, and the top of the support rod 16 is fixedly connected to a pin shaft 2, and the pin shaft 2 is rotatably connected to a slide groove 17, and the slide groove 17 is slidably connected to a slide rail 18. The slide rail 18 is fixedly connected to a lifting platform 19, and a guardrail 20 is fixedly connected to the top of the lifting platform 19, and the guardrail 20 is used to protect the staff and the transported goods; The other side of the transmission screw 14 is fixedly connected with a bearing four, and the bearing four is fixedly connected with a bearing seat 21, the bearing seat 21 is fixedly connected to the transmission screw 14, the bearing seat 21 is fixedly connected to the top of the lower base plate 3, the side of the bearing seat 21 is fixedly connected with a pin shaft three, the pin shaft three is rotatably connected with a connecting rod 22, the connecting rod 22 is rotatably connected to the bearing seat 21, the other end of the connecting rod 22 is fixedly connected with a pin shaft four, the pin shaft four is rotatably connected to the middle part of the support rod 16, and the connecting rod 22 is rotatably connected to the support rod 16; A hydraulic cylinder 1 24 is fixedly connected inside the hydraulic fixed frame 13, and the movable rod of the hydraulic cylinder 1 24 is rotatably connected to the bottom of the lifting platform 19. A hydraulic cylinder 2 25 is fixedly connected to each corner above the lower bottom plate 3, and the movable rod of the hydraulic cylinder 25 is fixedly connected to the bottom of the lifting platform 19. The hydraulic cylinder 1 24 and the hydraulic cylinder 2 25 are controlled by the start-stop button 23; like Figure 3-5 As shown, a motor 26 is fixedly connected to one side of the movable direction of the elevator housing 1, a rotating rod of the motor 26 is fixedly connected to a worm wheel 27, the worm wheel 27 is meshedly connected to a worm 28, the two top ends of the worm 28 are fixedly connected to bearings 5, the two bearings 5 ​​are fixedly connected to the two sides of the elevator housing 1, the worm 28 is rotatably connected to the elevator housing 1, the two sides of the worm 28 are meshedly connected to worm wheels 29, the worm wheel 29 is fixedly connected to a vertical rod 30, the top end of the vertical rod 30 is rotatably connected to the upper bottom plate 5, and the bottom end of the vertical rod 30 is rotatably connected to the lower bottom plate 3; A gear 1 31 is fixedly connected to the surface of the vertical rod 1 30, the gear 1 31 is meshedly connected to the gear 2 32, the gear 2 32 is fixedly connected to the vertical rod 2 33, the top end of the vertical rod 2 33 is rotatably connected to the upper bottom plate 5, the bottom end of the vertical rod 2 33 is rotatably connected to the lower bottom plate 3, the gear 2 32 is meshedly connected to the gear 3 34, and the center of the gear 3 34 is fixedly connected to the rotating shaft 6; like Figure 6-9 As shown, the support screw 8 is meshedly connected with a worm wheel disc 35, the center of the worm wheel disc 35 is fixedly connected with a pin shaft 5, the pin shaft 5 is rotatably connected to the inside of the leg 7, the leg 7 is rotatably connected to the worm wheel disc 35, the inside of the worm wheel disc 35 is penetrated and connected with a limit rod 36, the limit rod 36 is penetrated and connected with the leg 7, one side of the leg 7 is provided with a through hole for the movable track of the limit rod 36, the limit rod 36 is provided with a conical protrusion at the top end of the outside of the leg 7, and the conical protrusion of the limit rod 36 The shaped protrusion is engaged with the elevator housing 1, and a through hole is provided at the engaging part of the elevator housing 1 and the limit rod 36. The inner side of the support leg 7 is rotatably connected with a pin shaft six, and the pin shaft six is ​​rotatably connected with a pressure rod 37. The pressure rod 37 is rotatably connected with the support leg 7. The pressure rod 37 is a bent rod, and one end of the pressure rod 37 is in contact with the surface of the limit rod 36. The positioning rod 38 is used to fix the other end of the pressure rod 37. The pressure rod 37 is used to prevent the gear three 34 from rotating relative to the support leg 7 at the initial stage of starting the marine elevator.

[0014] Embodiment 1: In this embodiment, the operation of the lift is realized, and the lifting work is performed by a hydraulic cylinder to realize the lifting and lowering of staff or the transportation of goods.

[0015] Specifically, when the staff wants to complete the lifting operation, they open the guardrail 20 and close the guardrail after the staff or goods are on the lifting platform 19. The start-stop button 23 is used to control the hydraulic cylinder 1 24 and the hydraulic cylinder 2 25 to start at the same time. The movable rods of the hydraulic cylinder 1 24 and the hydraulic cylinder 2 25 are extended to drive the lifting platform 19 to rise. In the process of the lifting platform 19 rising, the slide groove 17 on the slide rail 28 slides toward the middle, and the angle formed by the support rod 16 and the vertical plane becomes smaller. Under the action of the connecting rod 22, the slider 15 slides to both sides, and at the same time drives the rotation of the transmission screw 14. When the lifting platform 19 reaches the required working height, the staff on the lifting platform 19 can control the hydraulic cylinder 1 24 and the hydraulic cylinder 2 25 to close through the remote controller.

[0016] When the worker completes the operation, the worker controls the hydraulic cylinder 1 24 and the hydraulic cylinder 2 25 to start through the remote controller, and the movable rods of the hydraulic cylinder 1 24 and the hydraulic cylinder 2 25 are retracted, driving the lifting platform 19 to descend.

[0017] The driving screw 14, the slider 15 and the support rod 16 provide support force for the lifting platform 19, and the lifting platform 19 is more stable during the process of rising and falling.

[0018] Specific example 2: Based on embodiment 1, the ship elevator also has the function of maintaining the horizontal stability of the lifting platform 19, controlling the inclination angle of the lifting platform 19 within a certain range, and solving the problem of large shaking of the lifting platform 19 caused by waves on the sea.

[0019] Specifically, a horizontal sensor is installed under the lifting platform 19, and the horizontal sensor can measure the horizontality of the lifting platform 19. When the horizontal sensor senses that the lifting platform 19 is tilted, the horizontal sensor will send a signal to the hydraulic cylinder 25 at one end of the tilt. After receiving the signal, the hydraulic cylinder 25 will make adjustments. By extending and retracting the movable rod of the hydraulic cylinder 25, the inclination of the lifting platform 19 is kept within a certain range.

[0020] Specific embodiment three: Based on embodiment one, the marine elevator also has the function of automatically fixing the position to prevent the elevator from moving. Through the motor 26, worm gear transmission and gear transmission, the problem of traditional elevators being time-consuming and labor-intensive in fixing the position is solved.

[0021] Specifically, a pressure sensor is installed inside the outrigger base 9. When aerial work is to be performed, the marine lift is dragged to a desired position, and the start-stop button 23 is used to control the start of the motor 26. The rotation shaft of the motor 26 drives the worm gear 1 27 to rotate. The worm gear 1 27 drives the worm 28 to rotate through the worm gear transmission. The worm 28 drives the worm gear 29 to rotate. The worm gear 29 drives the gear 1 31 to rotate coaxially. The gear 1 31 drives the gear 2 32 to rotate. The gear 2 32 drives the gear 3 34 to rotate. Since the pressure rod 37 is between the two teeth of the gear 3 34, the gear 3 34 drives the outrigger 7 to rotate. In the process of unfolding the outrigger 7, the gear 3 34 drives the belt The second wheel 12 rotates, the second pulley 12 drives the first pulley 10 to rotate through the V-belt 11, the first pulley 10 drives the support screw 8 to rotate, and the support screw 8 drives the support leg base 9 to move downward through the threaded holes on the surface of the support screw 8 and the inside of the leg 7. At the same time, the worm gear turntable 35 rotates with the support screw 8. Under the action of the limit rod 36, the pressure rod 37 rotates at the same time. When the positioning rod 37 is no longer in contact with the gear three 34, the leg 7 stops rotating, and the support screw 8 and the leg base 9 continue to move downward. When the pressure signal sensed by the pressure sensor inside the leg base 9 reaches a certain value, the feedback signal is sent to the motor 36, and the motor 36 stops, and the automatic fixing of the elevator position is completed.

[0022] When the lift needs to move, the start / stop button 23 is used to control the motor 26 to start, the motor 26 drives the worm wheel 1 27 to rotate, the worm wheel 1 27 drives the worm 28 to rotate through the worm gear transmission, the worm 28 drives the worm wheel 2 29 to rotate, the worm wheel 2 29 drives the gear 1 31 to rotate coaxially, the gear 1 31 drives the gear 2 32 to rotate, the gear 2 32 drives the gear 3 34 to rotate, the gear 3 34 drives the pulley 2 12 to rotate, the pulley 2 12 drives the pulley 10 to rotate through the V-belt 11, the pulley 10 drives the support The support screw 8 rotates, and the support screw 8 drives the leg base 9 to move upward. At the same time, the worm wheel turntable 35 rotates with the support screw 8. Under the action of gravity, the pressure rod 37 rotates at the same time. When the pressure rod 37 contacts the gear 34 and is stuck between the two teeth of the gear 34, the gear 34 drives the leg 7 to rotate. When the leg 7 returns to the original position, the positioning rod 36 is engaged with the through hole on the elevator housing 1, and the conical protrusion on the positioning rod 36 is stuck inside the elevator housing 1 to prevent the leg 7 from automatically extending during the movement of the elevator. The motor 26 stops automatically to achieve automatic positioning of the elevator.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A marine elevator with high stability, comprising an elevator housing (1), a lower bottom plate (3) and a lifting platform (19), characterized in that: A lug plate (2) is fixedly connected to the center of one side of the lift shell (1), and the lug plate (2) is used to connect to a trailer and to tow the marine lift; a lower bottom plate (3) is fixedly connected to the bottom of the lift shell (1), and four rollers (4) are fixedly connected to the bottom of the lower bottom plate (3), and the rollers (4) are used to move the marine lift; a start-stop button (23) is fixedly connected to the side of the lift shell (1), and the start-stop button (23) is used to control the start and stop of the marine lift; An upper base plate (5) is connected to the upper part of the lift housing (1). The upper base plate (5) is a rectangular frame that passes through the center. Through holes are provided at the four corners of the upper base plate (5). A bearing 1 is fixedly connected to the through hole of the upper base plate (5). A rotating shaft (6) is fixedly connected to the bearing 1. The rotating shaft (6) passes through the upper base plate (5) and is rotatably connected. A bearing 2 is fixedly connected to the bottom end of the rotating shaft (6). The bearing 2 is fixedly connected to the lower base plate (3). The lower base plate (3) is rotatably connected to the rotating shaft (6). In the middle of the upper base plate (5) and the lower base plate (3), a support leg (7) is rotatably connected to the rotating shaft (6). A threaded hole is provided at the other end of the support leg (7). A support screw (8) is meshedly connected to the threaded hole of the support leg (7). The bottom end of the support screw (8) is fixedly connected to a support leg base (9). The support leg base (9) is used to fix the position of the lift. The top of the support screw rod (8) is fixedly connected to a pulley 1 (10), a V-belt (11) is arranged in a groove of the pulley 1 (10), the other end of the V-belt (11) is connected to a pulley 2 (12), the pulley 2 (12) is fixedly connected to the surface of the rotating shaft (6), and the bottom end surface of the pulley 2 (12) is in contact with the upper surface of the upper base plate (5); A hydraulic press fixing frame (13) is fixedly connected to the top of the lower base plate (3), bearings 3 are fixedly connected to the middle of both sides of the hydraulic press fixing frame (13), a transmission screw (14) is fixedly connected to the bearings 3, a slider (15) is penetrated through the surface of the transmission screw (14), a threaded hole is penetrated inside the slider (15), the threaded hole of the slider (15) is meshed with the thread on the surface of the transmission screw (14), a pin 1 is fixedly connected to one side of the other end surface of the slider (15), the pin 1 is rotatably connected to a support rod (16), the top of the support rod (16) is fixedly connected to a pin 2, the pin 2 is rotatably connected to a slide groove (17), the slide groove (17) is slidably connected to a slide rail (18), the slide rail (18) is fixedly connected to the lifting platform (19), a guardrail (20) is fixedly connected to the top of the lifting platform (19), and the guardrail (20) is used to protect the staff and the transported goods; The other side of the transmission screw (14) is fixedly connected to a bearing four, the bearing four is fixedly connected to a bearing seat (21), the bearing seat (21) is fixedly connected to the transmission screw (14), the bearing seat (21) is fixedly connected above the lower base plate (3), the side of the bearing seat (21) is fixedly connected to a pin three, the pin three is rotatably connected to a connecting rod (22), the connecting rod (22) is rotatably connected to the bearing seat (21), the other end of the connecting rod (22) is fixedly connected to a pin four, the pin four is rotatably connected to the middle part of the support rod (16), and the connecting rod (22) is rotatably connected to the support rod (16); A hydraulic cylinder 1 (24) is fixedly connected inside the hydraulic fixing frame (13), and a movable rod of the hydraulic cylinder 1 (24) is rotatably connected to the bottom of the lifting platform (19). A hydraulic cylinder 2 (25) is fixedly connected at each corner above the lower base plate (3), and a movable rod of the hydraulic cylinder 2 (25) is fixedly connected to the bottom of the lifting platform (19). The hydraulic cylinder 1 (24) and the hydraulic cylinder 2 (25) are controlled by a start / stop button (23); A motor (26) is fixedly connected to one side of the movable direction of the elevator housing (1), a rotating rod of the motor (26) is fixedly connected to a worm gear 1 (27), the worm gear 1 (27) is meshingly connected to a worm (28), the two top ends of the worm (28) are fixedly connected to bearings 5, the two bearings 5 ​​are fixedly connected to the two sides of the elevator housing (1), the worm (28) is rotatably connected to the elevator housing (1), the two sides of the worm (28) are meshingly connected to worm gear 2 (29), the worm gear 2 (29) is fixedly connected to a vertical rod 1 (30), the top end of the vertical rod 1 (30) is rotatably connected to the upper base plate (5), and the bottom end of the vertical rod 1 (30) is rotatably connected to the lower base plate (3); The surface of the vertical rod 1 (30) is fixedly connected with a gear 1 (31), the gear 1 (31) is meshingly connected with a gear 2 (32), the gear 2 (32) is fixedly connected with a vertical rod 2 (33), the top end of the vertical rod 2 (33) is rotationally connected to the upper base plate (5), the bottom end of the vertical rod 2 (33) is rotationally connected to the lower base plate (3), the gear 2 (32) is meshingly connected with a gear 3 (34), and the center of the gear 3 (34) is fixedly connected to the rotating shaft (6); The support screw rod (8) is meshingly connected with a worm wheel disc (35), the center of the worm wheel disc (35) is fixedly connected with a pin shaft 5, the pin shaft 5 is rotatably connected to the inside of the support leg (7), the support leg (7) is rotatably connected to the worm wheel disc (35), the inside of the worm wheel disc (35) is penetrated by a limit rod (36), the limit rod (36) is penetrated and connected to the support leg (7), one side of the support leg (7) is provided with a through hole for the movable track of the limit rod (36), the limit rod (36) is provided with a conical protrusion at the top end of the outside of the support leg (7), and the conical protrusion of the limit rod (36) is formed on the support leg (7). The shaped protrusion is engaged with the elevator housing (1); a through hole is provided at the engaging portion of the elevator housing (1) and the limit rod (36); a pin shaft six is ​​rotatably connected to the inner side of the support leg (7); the pin shaft six is ​​rotatably connected to a pressure rod (37); the pressure rod (37) is rotatably connected to the support leg (7); the pressure rod (37) is a bent rod; one end of the pressure rod (37) contacts the surface of the limit rod (36); the positioning rod (38) is used to fix the other end of the pressure rod (37); the pressure rod (37) is used to prevent the gear three (34) from rotating relative to the support leg (7) at the initial stage of starting the marine elevator.

2. A marine elevator with high stability according to claim 1, characterized in that: The internal through hole of the upper base plate (5) is the same size as the opening of the elevator housing (1), and ribs are provided at the four corners of the through hole for fixing the first vertical rod (30) and the second vertical rod (33).

3. A marine elevator with high stability according to claim 1, characterized in that: The maximum installation length of the slide rail (18) is determined according to the maximum height that the elevator needs to lift.

4. A marine elevator with high stability according to claim 1, characterized in that: The hydraulic cylinder 1 (24) and the hydraulic cylinder 2 (25) may be multi-section hydraulic cylinders according to different lifting heights.

5. A marine elevator with high stability according to claim 1, characterized in that: The top end of the hydraulic cylinder one (24) is rotatably connected to the lifting platform (19), and the lifting platform (19) can be tilted left and right relative to the hydraulic cylinder one (24).

6. A marine elevator with high stability according to claim 1, characterized in that: The support screw (8) is in contact with the inner wall of the through hole of the support leg (7).

7. A marine elevator with high stability according to claim 1, characterized in that: A through hole is formed in the bent portion of the pressure rod (37), and the portion in contact with the positioning rod (38) is heavier than the portion in contact with the limiting rod (36) at the through hole as a boundary.

8. A marine elevator with high stability according to claim 7, characterized in that: The height of the conical protrusion of the limiting rod (36) is in the range of 2-5 mm, and in the closed state, the bottom of the conical protrusion just contacts the inner wall of the elevator housing (1).

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