Retracting and releasing device for marine rope ladder

Abstract

The utility model discloses a retractable device for a marine rope ladder, which belongs to the technical field of marine equipment and comprises two groups of bearing bases, a winding drum rotatably connected between the bearing bases and a turning gear component for driving the winding drum to rotate, and an eye ring detachably connected with a shackle at the end of the rope ladder is fixed on the surface of the winding drum. The bearing base is connected with an upper deck through a lifting assembly, and the barring assembly is matched with the lifting assembly through a longitudinal sliding piece to move in the direction away from / close to a main deck. On the premise of not occupying the space of a main deck, the rope ladder is reasonably stored, and meanwhile, the rope ladder has the effect of being retracted and released in a labor-saving manner.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and in particular to a marine rope ladder retraction and deployment device. Background Technology

[0002] For the safety of the shipping route, navigators are required to guide ships in and out of the port, and rope ladders are required on both sides of the ship to enable navigators to board and disembark safely.

[0003] When a ship is sailing normally, the rope ladder is usually stacked on the main deck near the ship's side and secured to the main deck with ropes. When entering or leaving the port, the crew lowers the rope ladder close to the ship's side plating so that the pilot can climb onto the ship.

[0004] However, when storing rope ladders, they will occupy space on the main deck and affect the width of the ship's escape route. If the stacking width of the rope ladders is reduced, the stacking height of the rope ladders will be too high, resulting in poor fixation and easy tilting and damage. At the same time, the conventional manual pulling method is laborious and makes retrieval difficult. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a marine rope ladder deployment and retraction device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A marine rope ladder deployment and retrieval device includes two sets of bearing bases, a drum rotatably connected between the bearing bases, and a trolley assembly for driving the drum to rotate. The drum surface is fixed with eyelets for detachable connection to the shackles at the ends of the rope ladder. The bearing bases are connected to the upper deck via a lifting assembly. The trolley assembly moves in a direction away from / towards the main deck via a longitudinal sliding member that cooperates with the lifting assembly. When retrieving the rope ladder, the lifting assembly lowers the drum and trolley assembly to a certain height, at which point the drum is near the navigator's head and the trolley assembly is near the navigator's arm. The navigator connects the shackles of the rope ladder to the eyelets on the drum and uses the trolley assembly to rotate the drum, easily and conveniently winding the rope ladder onto the drum. Then, the lifting assembly is operated to raise the drum to below the upper deck, ensuring sufficient space on the main deck for emergency escape.

[0008] The lifting assembly includes an inner square tube fixed to the top of each of the bearing bases, an outer square tube sleeved on the outside of each inner square tube and fixed below the upper deck, and a lifting motor. The lifting motor is fixedly connected to the outer square tube via a frame. The drive shaft of the lifting motor passes through the outer square tube and the inner square tube in sequence. A lifting gear is fixed on the drive shaft located inside the inner square tube. A rack portion that meshes with the lifting gear and a straight slot for vertical movement of the drive shaft are fixed on the inner wall of the inner square tube.

[0009] There is one lifting motor, and the drive shaft of the lifting motor is a long shaft that passes through each outer square tube and the inner square tube in sequence. There are two lifting gears, which are respectively fixed to the through end of the long shaft.

[0010] The turning gear assembly includes a turning gear bracket, a drive sprocket rotatably connected to the lower end of the turning gear bracket, a driven sprocket rotatably connected to the upper end of the turning gear bracket, and a chain that cooperates with the drive sprocket and the driven sprocket. The driven sprocket is fixedly connected to the rotating shaft of the drum extending out of any bearing base. A drive component for driving the rotation of the drive sprocket is installed on the outside of the drive sprocket.

[0011] The longitudinal sliding member includes a vertical guide rail and a slider that cooperate with each other. The vertical guide rail is fixed to the bulkhead, and the slider is fixed to the back side of the turning gear support.

[0012] Turntables are fixed on both sides of the drum. Each turntable has multiple pin holes along its circumference. A positioning plate is fixed on the corresponding bearing base. The positioning plate has positioning holes, and the positioning holes are connected to the pin holes via pin shafts.

[0013] The driving component is a crank handle, one end of which is fixedly connected to the drive sprocket.

[0014] The driving component is a geared motor, which moves towards / away from the turning car assembly via a lateral sliding member. A drive gear is fixed to the output end of the geared motor, and a driven gear meshing with the drive gear is fixed to the outside of the driving sprocket. Through the movable cooperation between the geared motor and the driving sprocket, the turning car assembly is electrically driven, thereby further improving the retrieval efficiency of the rope ladder.

[0015] The lateral sliding component includes a horizontal slide rail and a slide platform that cooperate with each other. The horizontal slide rail is fixed on the main deck, and the slide platform is fixed to the bottom of the motor base of the reduction motor and is provided with a fastener for fixing the position of the slide platform.

[0016] An auxiliary lifting device is provided below the bearing base. The auxiliary lifting device includes an inner connecting pipe fixed to the bottom of the bearing base and an outer connecting pipe sleeved on the outside of the inner connecting pipe and fixed to the main deck. Locking holes are correspondingly provided on the outer connecting pipe and the inner connecting pipe, and the two locking holes are connected by a locking pin. When the lifting motor drives the drum to rise below the upper deck, a locking shaft is used to secure it, thereby preventing the drum from falling and improving the safety of the device.

[0017] This invention has the following advantages: By setting up a drum, a lifting assembly that drives the drum to rise and fall, and a trolley assembly that rises and falls with the drum, when retrieving the rope ladder, the lifting assembly lowers the drum and the trolley assembly to a certain height. At this time, the drum is located near the navigator's head, and the trolley assembly is located near the navigator's arm. The navigator connects the rope ladder's shackle to the eye ring on the drum and rotates the drum using the trolley assembly, retrieving the rope ladder effortlessly and conveniently. Then, the lifting assembly is used to raise the drum to below the upper deck, so that there is sufficient space on the main deck for emergency escape. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0022] Figure 4 for Figure 2 A partial sectional view of A in the middle;

[0023] Figure 5 for Figure 2 A partial sectional view of B in the middle;

[0024] Figure 6 This is a partial cross-sectional view of the turntable assembly of this utility model.

[0025] 1. Drum; 101. Eye ring; 102. Turntable; 103. Pin hole; 104. Shaft; 2. Bearing base; 201. First bearing; 202. Positioning plate; 203. Pin shaft; 3. Turning gear assembly; 301. Turning gear bracket; 302. Drive sprocket; 3021. Handle; 3022. Driven gear; 303. Driven sprocket; 304. Chain; 305. Gear motor; 3051. Drive gear; 306. The first... 4. Lifting motor; 401. Long shaft; 402. Third bearing; 403. Lifting gear; 5. Outer square tube; 6. Inner square tube; 601. Straight groove; 602. Rack section; 7. Upper deck; 8. Sliding block; 9. Vertical guide rail; 10. Bulkhead; 11. Main deck; 12. Inner connecting pipe; 1201. Lock hole; 13. Outer connecting pipe; 14. Locking shaft; 15. Horizontal slide; 16. Slide table; 17. Set bolt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figure 1 and Figure 2As shown, this utility model provides a marine rope ladder deployment and retraction device, including two sets of bearing bases 2 and a drum 1 rotatably connected between the bearing bases 2, and a trolley assembly 3 for driving the drum 1 to rotate. Specifically, a first bearing 201 rotatably connected to the shaft 104 of the drum 1 is fixed inside the bearing base 2. An eye ring 101 for detachable connection with the end buckle of the rope ladder is fixed on the surface of the drum 1. The bearing base 2 is connected to the upper deck 7 via a lifting assembly. The trolley assembly 3 moves in the direction away from / towards the main deck 11 in cooperation with the lifting assembly via a longitudinal sliding member. The lifting assembly drives the drum 1 and the trolley assembly 3 to move up and down together in the area between the upper deck 7 and the main deck 11. Specifically, as shown... Figure 4 As shown, in this embodiment, the lifting assembly includes an inner square tube 6 fixed to the top of each of the bearing bases 2, an outer square tube 5 sleeved on the outside of each inner square tube 6 and fixed below the upper deck 7, and a lifting motor 4. The lifting motor 4 is fixedly connected to the outer square tube 5 via a frame. The drive shaft of the lifting motor 4 passes through the outer square tube 5 and the inner square tube 6 in sequence. A lifting gear 403 is fixed on the drive shaft located inside the inner square tube 6. A rack portion 602 that meshes with the lifting gear 403 and a straight slot 601 for vertical movement of the drive shaft are fixed on the inner wall of the inner square tube 6. The lifting motor 4 drives the lifting gear 403 to rotate, and the rack portion 602 meshes with the lifting gear 403. Under the meshing of 3, the inner square tube 6 is driven to make vertical lifting and lowering movements within the outer square tube 5. At the same time, the inner square tube 6 and the outer square tube 5 slide with clearance to ensure the stability of the drum 1 in the vertical direction during lifting and lowering. More preferably, there is one lifting motor 4. The drive shaft of the lifting motor 4 is a long shaft 401. The long shaft 401 passes through each outer square tube 5 and the inner square tube 6 in sequence. A third bearing 402 that is rotatably connected to the long shaft 401 is fixed at the penetration position of the outer square tube 5. There are two lifting gears 403, which are respectively fixed at the penetration end of the long shaft 401, thereby realizing the lifting and lowering movement of two inner square tubes 6 driven by one lifting motor 4.

[0030] When retrieving the rope ladder, the lifting motor 4 lowers the drum 1 and the turning assembly 3 to a certain height until the drum 1 is near the navigator's head and the turning assembly 3 is near the navigator's arm. That is, the entire device is within the navigator's working range. The navigator can directly connect the rope ladder's shackle to the eye ring 101 of the drum 1 and turn the drum 1 through the turning assembly 3 to retrieve the rope ladder in a labor-saving and convenient way. Then, the lifting motor 4 is run to drive the drum 1 to rise below the upper deck 7 so that there is sufficient space on the main deck 11 for emergency escape.

[0031] Specifically, such as Figure 1 and Figure 6As shown, the turning gear assembly 3 includes a turning gear bracket 301, a drive sprocket 302 rotatably connected to the lower end of the turning gear bracket 301, a driven sprocket 303 rotatably connected to the upper end of the turning gear bracket 301, and a chain 304 cooperating with the drive sprocket 302 and the driven sprocket 303. The driven sprocket 303 is fixedly connected to the shaft 104 of the drum 1 extending from any bearing base 2. A drive component for driving the rotation of the drive sprocket 302 is installed on the outside of the drive sprocket 302; more preferably, as... Figure 2 and Figure 5 As shown, the longitudinal sliding member includes a vertical guide rail 9 and a slider 8 that cooperate with each other. The vertical guide rail 9 is fixed on the bulkhead 10, and the slider 8 is fixed on the back side of the turntable bracket 301.

[0032] In Embodiment 1, the driving component is a crank handle 3021. One end of the crank handle 3021 is fixedly connected to the drive sprocket 302. Specifically, the fixed end of the crank handle 3021 passes through the turning bracket 301 and is rotatably connected to the turning bracket 301 via the second bearing 306, thereby realizing the rotatable connection between the drive sprocket 302 and the turning bracket 301. The rotating shaft 104 of the drum 1 passes through the turning bracket 301 and is rotatably connected to the turning bracket 301 via the same second bearing 306, thereby realizing the rotatable connection between the driven sprocket 303 and the turning bracket 301.

[0033] To limit and fix the drum 1 of the coiled rope ladder, prevent the drum 1 from rotating, and ensure that the rope ladder is stably coiled on the drum 1, such as... Figure 1 As shown, turntables 102 are fixed on both sides of the drum 1. Each turntable 102 has multiple pin holes 103 along its circumference. A positioning plate 202 is fixed on the corresponding bearing base 2. The positioning plate 202 has a positioning hole. The positioning hole and the pin hole 103 are connected by a pin shaft 203. The drum 1 is finely adjusted after being wound into position so that the pin hole 103 closest to the positioning plate 202 is aligned with the positioning hole and the pin shaft 203 is inserted to complete the positioning of the drum 1. Preferably, the pin shaft 203 is hung on the corresponding bearing base by a connecting rope so that the pin shaft 203 can be taken out as needed.

[0034] To improve the safety of drum 1 when it is lifted below the deck, such as Figure 1 and Figure 5As shown, an auxiliary lifting component is provided below the bearing base 2. The auxiliary lifting component includes an inner connecting pipe 12 fixed to the bottom of the bearing base 2 and an outer connecting pipe 13 sleeved on the outside of the inner connecting pipe 12 and fixed to the main deck 11. Locking holes 1201 are correspondingly provided on the outer connecting pipe 13 and the inner connecting pipe 12, and the two locking holes 1201 are connected by locking pins. When the lifting motor 4 drives the drum 1 to rise below the upper deck 7, the locking shaft 14 is used to fix the inner connecting pipe 12 and the outer connecting pipe 13, thereby preventing the drum 1 from falling and improving the safety of the device.

[0035] like Figure 3 As shown, in Embodiment 2, unlike Embodiment 1, the driving component is a geared motor 305. The geared motor 305 moves in the direction away from / near the turning car assembly 3 via a lateral sliding member. A drive gear 3051 is fixed at the output end of the geared motor 305, and a driven gear 3022 that meshes with the drive gear 3051 is fixed on the outside of the drive sprocket 302. Through the active cooperation between the geared motor 305 and the drive sprocket 302, the electric drive of the turning car assembly 3 is realized, thereby further improving the retrieval efficiency of the rope ladder.

[0036] Specifically, the lateral sliding member includes a horizontal slide rail 15 and a slide table 16 that cooperate with each other. The horizontal slide rail 15 is fixed on the main deck 11, and the slide table 16 is fixed to the bottom of the motor base of the reduction motor 305. The slide table 16 is provided with a fastening member for fixing the position of the slide table 16. The fastening member is a set bolt 17. A threaded hole that cooperates with the set bolt 17 is opened on the outer side of the slide table 16. After the set bolt 17 passes through the threaded hole, it is in close contact with the outer surface of the horizontal slide rail 15, thereby completing the fixing of the reduction motor 305 at the first position away from the drive sprocket 302 and the second position where it cooperates with the driven gear 3022 on the outer side of the drive sprocket 302.

[0037] Implementing the above technical solution, taking Example 1 as an example, when the ship departs and the navigator needs to retrieve the rope ladder, the operating lifting motor 4 drives the drum 1 to descend to the navigator's head position. The navigator removes the rope ladder's shackle from the ship's eyelet on the deck and connects it to the eyelet 101 of the drum 1. The navigator then manually cranks the crank handle 3021, causing the drum 1 to rotate. The rope ladder is then coiled section by section onto the drum 1. Compared to the existing manual pulling operation, this method is much more efficient. Figure 6In this embodiment, a small sprocket (driving sprocket 302) drives a large sprocket (driven sprocket 303) to rotate, achieving a labor-saving effect of deceleration and torque increase, reducing the difficulty of retrieval and improving retrieval efficiency. After winding, the turntable 102 of the drum 1 is locked using the pin 203, and the lifting motor 4 is run to drive the drum 1 to rise below the upper deck. The inner connecting pipe 12 below the bearing seat is fixed using the locking shaft 14. At this time, the rope ladder is stably stored below the upper deck 7, and there is sufficient space on the main deck 11 for escape. When the ship needs to lower the rope ladder upon entering the port, the locking shaft 14 is removed and the lifting motor 4 is run to drive the drum 1 to the operating height. The navigator removes the pin 203 and operates the crank 3021 to lower the rope ladder. After the rope ladder is fully lowered, the shackle is removed and connected to the ship's eye ring on the deck. Using this device, the rope ladder is stored reasonably without occupying the space of the main deck 11. At the same time, this device also has the effect of labor-saving retrieval and deployment of the rope ladder.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A marine rope ladder retraction and deployment device, characterized in that, It includes two sets of bearing bases and a drum rotatably connected between the bearing bases, as well as a turning gear assembly for driving the drum to rotate. The surface of the drum is fixed with an eye ring for detachable connection with the end shackle of the rope ladder. The bearing bases are connected to the upper deck via a lifting assembly. The turning gear assembly moves in the direction away from / towards the main deck via a longitudinal sliding member that cooperates with the lifting assembly.

2. The marine rope ladder retraction device according to claim 1, characterized in that, The lifting assembly includes an inner square tube fixed to the top of each of the bearing bases, an outer square tube sleeved on the outside of each inner square tube and fixed below the upper deck, and a lifting motor. The lifting motor is fixedly connected to the outer square tube via a frame. The drive shaft of the lifting motor passes through the outer square tube and the inner square tube in sequence. A lifting gear is fixed on the drive shaft located inside the inner square tube. A rack portion that meshes with the lifting gear and a straight slot for vertical movement of the drive shaft are fixed on the inner wall of the inner square tube.

3. The marine rope ladder retraction device according to claim 2, characterized in that, There is one lifting motor, and the drive shaft of the lifting motor is a long shaft that passes through each outer square tube and the inner square tube in sequence. There are two lifting gears, which are respectively fixed to the through end of the long shaft.

4. A marine rope ladder retraction and deployment device according to any one of claims 1-3, characterized in that, The turning gear assembly includes a turning gear bracket, a drive sprocket rotatably connected to the lower end of the turning gear bracket, a driven sprocket rotatably connected to the upper end of the turning gear bracket, and a chain that cooperates with the drive sprocket and the driven sprocket. The driven sprocket is fixedly connected to the rotating shaft of the drum extending out of any bearing base. A drive component for driving the rotation of the drive sprocket is installed on the outside of the drive sprocket.

5. A marine rope ladder retraction and deployment device according to claim 4, characterized in that, The longitudinal sliding member includes a vertical guide rail and a slider that cooperate with each other. The vertical guide rail is fixed to the bulkhead, and the slider is fixed to the back side of the turning gear support.

6. A marine rope ladder retraction device according to claim 4, characterized in that, Turntables are fixed on both sides of the drum. Each turntable has multiple pin holes along its circumference. A positioning plate is fixed on the corresponding bearing base. The positioning plate has positioning holes, and the positioning holes are connected to the pin holes via pin shafts.

7. A marine rope ladder retraction and deployment device according to claim 4, characterized in that, The driving component is a crank handle, one end of which is fixedly connected to the drive sprocket.

8. A marine rope ladder retraction device according to claim 4, characterized in that, The driving component is a geared motor. The geared motor moves in the direction away from / closer to the turning gear assembly via a lateral sliding member. A drive gear is fixed at the output end of the geared motor, and a driven gear that meshes with the drive gear is fixed on the outside of the driving sprocket.

9. A marine rope ladder retraction device according to claim 8, characterized in that, The lateral sliding component includes a horizontal slide rail and a slide platform that cooperate with each other. The horizontal slide rail is fixed on the main deck, and the slide platform is fixed to the bottom of the motor base of the reduction motor and is provided with a fastener for fixing the position of the slide platform.

10. A marine rope ladder retraction and deployment device according to any one of claims 1-3, characterized in that, An auxiliary lifting component is provided below the bearing base. The auxiliary lifting component includes an inner connecting pipe fixed to the bottom of the bearing base and an outer connecting pipe sleeved on the outside of the inner connecting pipe and fixed on the main deck. Locking holes are provided on the outer connecting pipe and the inner connecting pipe respectively, and the two locking holes are connected by locking pins.

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