Lifting type boarding device

Abstract

The invention relates to a lifting type boarding device which comprises a base, a lifting assembly, an inclined ladder assembly and an inclined ladder base. The lifting assembly is fixedly installed above the base, a boarding platform is arranged at the upper end of the lifting assembly, one end of the inclined ladder assembly is hinged to the side face of the boarding platform, the other end of the inclined ladder assembly is hinged to the upper end of the inclined ladder base, and the inclined ladder base is movably installed on the base. When the height of the lifting assembly is increased, the inclined ladder base gets close to the lifting assembly, and when the height of the lifting assembly is decreased, the inclined ladder base gets away from the lifting assembly. According to the lifting type boarding device, the height can be adjusted according to needs, and therefore boarding and boarding use in scenes with different height differences is met; through the arrangement of the sliding plate and the lap joint plate, the transverse span of the boarding platform can be adjusted according to needs, and use between wharfs with different spans and decks is met.

Description

Technical Field

[0001] The invention relates to the field of boarding equipment, and in particular to a lifting type boarding device. Background Art

[0002] After the ship docks, people need to use a boarding ladder to get on and off the ship. Early boarding ladders were gangplanks set up between the ship and the dock, and people passed through the gangplanks. Due to the influence of wind and waves, the gangplank was extremely unstable and people could easily fall into the water.

[0003] Currently, a more common method is to hang a boarding ladder on the side of the hull deck; another more common method is to place a fixed boarding ladder on the dock or the hull deck.

[0004] Due to the different sizes of ships and the different docks they berth at, the height difference between the hull deck and the dock, and the distance between the deck and the dock may be different. The existing boarding ladder cannot meet the needs of getting on and off the ship under different height differences and horizontal distances between the dock and the deck. Summary of the invention

[0005] In order to solve the problem that it is inconvenient to board a ship using a boarding ladder, the present invention provides a lifting boarding device, which can be adjusted in height according to the height of the dock and the ship deck, making it convenient for people to walk and increasing walking stability.

[0006] The technical objectives of the present invention are achieved through the following technical solutions:

[0007] A lifting boarding device comprises a base, a lifting assembly, an inclined ladder assembly, and an inclined ladder base;

[0008] The lifting assembly is fixedly installed above the base, the upper end of the lifting assembly is provided with a boarding platform, one end of the inclined ladder assembly is hingedly connected to the side of the boarding platform, the other end of the inclined ladder assembly is hingedly connected to the upper end of the inclined ladder base, and the inclined ladder base is movably installed on the base;

[0009] When the height of the lifting assembly is raised, the inclined ladder base approaches the lifting assembly, and when the height of the lifting assembly is lowered, the inclined ladder base moves away from the lifting assembly.

[0010] Furthermore, the boarding platform includes a lap plate and a slide plate slidably connected to the lap plate, one end of the inclined ladder assembly is hinged to one end of the lap plate, the slide plate is slidably arranged at the other end of the lap plate, and a lap hook is arranged below the end of the slide plate opposite to the lap plate; the lifting assembly is supported below the lap plate.

[0011] Furthermore, the lifting assembly includes a scissor fork structure and a first driving device for driving the scissor fork structure to lift.

[0012] Furthermore, the scissors fork structure includes several layers of cross-arranged scissor rods, upper slide rails, and lower slide rails; an upper movable seat slidably matched with the upper slide rails is connected between the topmost scissor rods and the upper slide rails, and a lower movable seat slidably matched with the lower slide rails is connected between the bottommost scissor rods and the lower slide rails; the upper slide rails are installed below the lap plate, and the lower slide rails are installed above the base; the upper movable seat and the topmost scissor rods are hingedly connected, and the lower movable seat and the bottommost scissor rods are hingedly connected; the bottommost scissor rods drive the lower movable seat to move along the lower slide rails through a first driving device to adjust the crossing angle between the cross rods.

[0013] Furthermore, the first driving device includes a first servo motor and a screw rod drivingly connected to an output shaft of the first servo motor, and the screw rod is threadedly matched with the lower movable seat.

[0014] Furthermore, a rotating rod is connected to the opposite end of the screw rod which is transmission-connected to the output shaft of the first servo motor. One end of the rotating rod is coaxially transmission-connected to the screw rod. The other end of the rotating rod is threadedly connected to a threaded sleeve. The threaded sleeve is fixedly connected to the inclined ladder base. When the first driving device drives the scissors fork structure to rise and fall, the inclined ladder base synchronously moves linearly relative to the bottom of the scissors fork structure.

[0015] Furthermore, the inclined ladder assembly includes parallel supported frames, a plurality of pedals are installed between the parallel supported frames, the supported frames are inclined, the pedals are arranged in sequence along the inclined direction of the supported frames, the upper portion of the inclined supported frames is hingedly connected to the boarding platform, and the lower portion of the inclined supported frames is hingedly connected to the inclined ladder base.

[0016] Furthermore, rotating shafts are provided at both ends of the pedal corresponding to the support frames, and the pedal is rotatably installed between the parallel support frames through the rotating shafts. A linkage driving device for adjusting the angle of the pedal is also connected between the pedals.

[0017] Furthermore, the linkage driving device includes a linkage rod and a second driving device that drives the pedal to rotate along the rotating shaft.

[0018] Furthermore, the pedal is provided with a sliding block corresponding to the support frame, and the support frame is provided with an arc groove corresponding to the sliding block. When the pedal rotates along the rotating shaft, the sliding block moves in the arc groove along the arc groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The lifting boarding device of the present invention can be adjusted in height as needed to meet the needs of getting on and off the ship in scenarios with different height differences; the setting of the slide plate and the lap plate can adjust the lateral span of the boarding platform as needed to meet the needs of use between docks and decks with different spans.

[0021] The inclined ladder assembly of the lifting boarding device of the present invention changes its angle when adjusting its height, and the angle of the pedal can be adjusted by the linkage driving device, thereby ensuring that the pedal always remains in a horizontal state when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the lifting boarding device in Example 1 of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the lifting boarding device in Example 2 of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the boarding platform in Example 2 of the present invention.

[0025] Figure 4 It is a schematic diagram of the internal structure of the boarding platform in Example 2 of the present invention.

[0026] Figure 5 This is a schematic diagram of the arrangement of the first driving device in Example 2 of the present invention.

[0027] Figure 6 It is a schematic diagram of a form of the linkage drive device in the present invention.

[0028] Figure 7 It is another schematic diagram of the linkage drive device in the present invention.

[0029] Figure 8 It is a schematic diagram of the setting of the sliding block in the present invention.

[0030] In the figure:

[0031] 1. Base; 2. Lifting assembly; 3. Inclined ladder assembly; 4. Inclined ladder base; 5. Boarding platform;

[0032] 2-1, scissor rod; 2-2, upper slide rail; 2-3, lower slide rail; 2-4, upper moving seat; 2-5, lower moving seat; 2-6, first servo motor; 2-7, lead screw; 2-8, rotating rod; 2-9, threaded sleeve;

[0033] 3-1, support frame; 3-2, pedal; 3-3, rotating shaft; 3-4, linkage rod; 3-5, second servo motor; 3-6, lead screw; 3-7, sliding block; 3-8 arc groove; 3-9, spring;

[0034] 5-1, overlapping plate; 5-2, sliding plate; 5-3, overlapping hook; 5-4, guide slide groove; 5-5, screw rod; 5-6, third driving device. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0036] Example 1

[0037] A lifting boarding device, such as Figure 1 As shown, it includes a base 1, a lifting assembly 2, an inclined ladder assembly 3, and an inclined ladder base 4;

[0038] The lifting assembly 2 is fixedly installed above the base 1, and the upper end of the lifting assembly 2 has a boarding platform 5, one end of the inclined ladder assembly 3 is hingedly connected to the side of the boarding platform 5, and the other end of the inclined ladder assembly 3 is hingedly connected to the upper end of the inclined ladder base 4, and the inclined ladder base 4 is movably installed on the base 1;

[0039] When the height of the lifting assembly 2 is raised, the inclined ladder base 4 approaches the lifting assembly 2 , and when the height of the lifting assembly 2 is lowered, the inclined ladder base 4 moves away from the lifting assembly 2 .

[0040] Example 2

[0041] A lifting boarding device, such as Figure 2 As shown, it includes a base 1, a lifting assembly 2, an inclined ladder assembly 3, and an inclined ladder base 4;

[0042] The lifting assembly 2 is fixedly installed above the base 1, and the upper end of the lifting assembly 2 has a boarding platform 5, one end of the inclined ladder assembly 3 is hingedly connected to the side of the boarding platform 5, and the other end of the inclined ladder assembly 3 is hingedly connected to the upper end of the inclined ladder base 4, and the inclined ladder base 4 is movably installed on the base 1;

[0043] When the height of the lifting assembly 2 is raised, the inclined ladder base 4 approaches the lifting assembly 2 , and when the height of the lifting assembly 2 is lowered, the inclined ladder base 4 moves away from the lifting assembly 2 .

[0044] like Figure 3 As shown, the boarding platform 5 includes a lap plate 5-1 and a slide plate 5-2 slidably connected to the lap plate 5-1, one end of the inclined ladder assembly 3 is hinged to one end of the lap plate 5-1, and the slide plate 5-2 is slidably set at the other end of the lap plate 5-1, and a lap hook 5-3 is set below the end of the slide plate 5-2 that is opposite to the lap plate 5-1; the lifting assembly 2 is supported below the lap plate 5-1.

[0045] More specifically, in order to facilitate the sliding of the slide plate 5-2 and the relative lap plate 5-1, a third driving device is provided to drive the slide plate 5-2 to slide relative to the lap plate 5-1. Figure 4As shown, the lap plate 5-1 is provided with a guide groove 5-4 in the horizontal direction, and the slide plate 5-2 is inserted into the guide groove 5-4. The slide plate 5-2 is provided with an internal threaded hole, and a screw rod 5-5 is passed through the internal threaded hole of the slide plate 5-2. An umbrella gear is provided at the end of the screw rod 5-5. The third driving device 5-6 is such as a servo motor. The output shaft of the servo motor is equipped with an umbrella gear meshing with the umbrella gear at the end of the screw rod 5-5. The servo motor is installed below the lap plate 5-1, and the output shaft of the servo motor is inserted into the guide groove 5-4 so that the two umbrella gears are meshed. The slide plate 5-2 is driven to move along the guide groove 5-4 in the guide groove 5-4 by the rotation of the screw rod 5-5.

[0046] The lifting assembly is mainly used to achieve the height lifting and support of the boarding platform. Common lifting methods include lifting by electric cylinders, hydraulic cylinders, etc., and lifting by threaded adjustment. In this embodiment, the lifting assembly includes a scissors fork structure and a first driving device for driving the scissors fork structure to lift and lower. That is, the lifting assembly used in this embodiment is a scissors fork lifting device. The scissors fork lifting device is a common lifting device, which generally drives the scissors fork structure to rise or fall by an electric cylinder, a hydraulic cylinder, a screw rod, etc.

[0047] More specifically, Figure 4 and Figure 5 As shown, the scissor fork structure includes several layers of cross-arranged scissor rods 2-1, upper slide rails 2-2, and lower slide rails 2-3. The scissor rods 2-1 are formed into an X-like shape by crossing, and the height change is achieved by changing the crossing angle. An upper movable seat 2-4 that slides with the upper slide rail 2-2 is connected between the topmost scissor rod and the upper slide rail 2-2, and a lower movable seat 2-5 that slides with the lower slide rail 2-3 is connected between the bottommost scissor rod 2-1 and the lower slide rail 2-3; the upper slide rail 2-2 is installed below the lap plate 5-1, and the lower slide rail 2-3 is installed above the base 1, the upper movable seat 2-4 is hingedly connected to the topmost scissor rod, and the lower movable seat 2-5 is hingedly connected to the bottommost scissor rod; the bottommost scissor rod drives the lower movable seat 2-5 to move along the lower slide rail 2-3 through the first driving device to adjust the crossing angle between the cross rods.

[0048] The first driving device includes a first servo motor 2-6, a screw rod 2-7 connected to the output shaft of the first servo motor 2-6, and the screw rod 2-7 is threadedly matched with the lower moving seat 2-5. The opposite end of the screw rod 2-7 connected to the output shaft of the first servo motor 2-6 is also connected to a rotating rod 2-8, one end of the rotating rod 2-8 is coaxially connected to the screw rod 2-7, and the other end of the rotating rod 2-8 is threadedly connected to a threaded sleeve 2-9, and the threaded sleeve 2-9 is fixedly connected to the inclined ladder base 4. When the first driving device drives the scissor fork structure to rise and fall, the inclined ladder base 4 is synchronously linearly translated relative to the bottom of the scissor fork structure.

[0049] The output shaft of the first servo motor 2-6 rotates to rotate the screw rod 2-7 connected thereto. When the screw rod 2-7 rotates, the two lower movable seats 2-5 are driven to move closer to or farther from each other. When the two lower movable seats 2-5 move closer to each other, the scissor fork structure as a whole rises, and when the two lower movable seats 2-5 move farther from each other, the scissor fork structure as a whole decreases. When the output shaft of the first servo motor 2-6 rotates, relative displacement occurs between the rotating rod 2-8 and the threaded sleeve 2-9, promoting the movement of the inclined ladder base 4 during the lifting and lowering process of the lifting platform.

[0050] More specifically, rollers, guide rails, etc. may be provided at the bottom of the inclined ladder base 4 to assist in movement.

[0051] The inclined ladder assembly 3 includes parallel supported frames 3-1, between which a plurality of pedals 3-2 are installed. The supported frames 3-1 are inclined, and the plurality of pedals 3-2 are arranged in sequence along the inclined direction of the supported frames 3-1. When in use, a person goes up and down by stepping on the pedals. The inclined upper portion of the supported frame 3-1 is hingedly connected to the boarding platform, and the inclined lower portion of the supported frame 3-1 is hingedly connected to the inclined ladder base 4. Specifically, the inclined upper portion of the supported frame 3-1 is connected to the side of the lap plate 5-1.

[0052] The two ends of the pedal 3-2 are provided with a rotating shaft 3-3 corresponding to the support frame 3-1, and the pedal 3-2 is rotatably installed between the parallel support frames 3-1 through the rotating shaft 3-3. A linkage driving device for adjusting the angle of the pedal 3-2 is also connected between the pedals 3-2. The linkage driving device includes a linkage rod 3-4 and a second driving device that drives the pedal 3-2 to rotate along the rotating shaft 3-3.

[0053] In one implementation, Figure 6 As shown, the second driving device can be a second servo motor 3-5 that is transmission-connected to the rotating shaft of one of the pedals. The second servo motor 3-5 drives one of the pedals 3-2 to rotate along the rotating shaft 3-3 through the output shaft to achieve the angle adjustment of the pedal, thereby ensuring that the pedal can be in a horizontal state when in use. The linkage rod 3-4 is hingedly connected to all the pedals 3-2 at the same time, and the other pedals 3-2 rotate synchronously under the action of the linkage rod 3-4.

[0054] In one implementation, Figure 7As shown, the second driving device can also be a screw rod structure arranged along the extension direction of the linkage rod 3-4, one end of the screw rod 3-6 is threadedly connected to the linkage rod 3-4, and the other end of the screw rod 3-6 is connected to the output shaft of the second servo motor 3-5, and the linkage rod 3-4 is driven to move by rotating the screw rod 3-6 to achieve the angle adjustment of the pedal 3-2. It should be noted that the installation position of the second servo motor 3-5 should have the function of angle adjustment, such as hingedly fixing the second servo motor 3-5 between the support frame 3-1 to adapt to the angle change of the linkage rod 3-4 when the pedal 3-2 rotates.

[0055] like Figure 8 As shown, the pedal 3-2 is further provided with a sliding block 3-7 corresponding to the support frame 3-1, and the support frame 3-1 is provided with an arc groove 3-8 corresponding to the sliding block 3-7. When the pedal 3-2 rotates along the rotating shaft, the sliding block 3-7 moves along the arc groove 3-8.

[0056] Preferably, a curved spring 3-9 is provided between the two ends of the arc groove 3-8 and the sliding block 3-7. When the pedal 3-2 rotates, the spring 3-9 plays a supporting and buffering role for the sliding block 3-7.

[0057] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A lifting boarding device, characterized in that: It includes a base, a lifting assembly, an inclined ladder assembly, and an inclined ladder base; The lifting assembly is fixedly mounted above the base, the upper end of the lifting assembly is provided with a boarding platform, one end of the inclined ladder assembly is hingedly connected to the side of the boarding platform, the other end of the inclined ladder assembly is hingedly connected to the upper end of the inclined ladder base, and the inclined ladder base is movably mounted on the base; When the height of the lifting assembly is raised, the inclined ladder base approaches the lifting assembly, and when the height of the lifting assembly is lowered, the inclined ladder base moves away from the lifting assembly.

2. A lifting boarding device according to claim 1, characterized in that: The boarding platform includes a lap plate and a slide plate slidably connected to the lap plate. One end of the inclined ladder assembly is hinged to one end of the lap plate, and the slide plate is slidably arranged at the other end of the lap plate. A lap hook is arranged below the end of the slide plate opposite to the lap plate. The lifting assembly is supported below the lap plate.

3. A lifting boarding device according to claim 2, characterized in that: The lifting assembly includes a scissor fork structure and a first driving device for driving the scissor fork structure to lift.

4. A lifting boarding device according to claim 3, characterized in that: The scissors fork structure includes several layers of cross-arranged scissor fork rods, upper slide rails, and lower slide rails. An upper movable seat that slidably cooperates with the upper slide rails is connected between the topmost scissor fork rods and the upper slide rails, and a lower movable seat that slidably cooperates with the lower slide rails is connected between the bottommost scissor fork rods and the lower slide rails; the upper slide rails are installed below the lap plate, and the lower slide rails are installed above the base; the upper movable seat and the topmost scissor fork rods are hingedly connected, and the lower movable seat and the bottommost scissor fork rods are hingedly connected; the bottommost scissor fork rods drive the lower movable seat to move along the lower slide rails through a first driving device to adjust the crossing angle between the cross rods.

5. A lifting boarding device according to claim 4, characterized in that: The first driving device includes a first servo motor and a screw rod drivingly connected to an output shaft of the first servo motor, and the screw rod is threadedly matched with the lower movable seat.

6. A lifting boarding device according to claim 5, characterized in that: The opposite end of the screw rod that is transmission-connected to the output shaft of the first servo motor is also connected to a rotating rod, one end of the rotating rod is coaxially transmission-connected to the screw rod, and the other end of the rotating rod is threadedly connected to a threaded sleeve, and the threaded sleeve is fixedly connected to the inclined ladder base. When the first driving device drives the scissors fork structure to rise and fall, the inclined ladder base synchronously moves linearly relative to the bottom of the scissors fork structure.

7. The lifting boarding device according to claim 1, characterized in that: The inclined ladder assembly includes parallel supporting frames, between which a plurality of pedals are installed, the supporting frames are inclined, the pedals are arranged in sequence along the inclination direction of the supporting frames, the upper portion of the inclined supporting frames is hingedly connected to the boarding platform, and the lower portion of the inclined supporting frames is hingedly connected to the inclined ladder base.

8. The lifting boarding device according to claim 7, characterized in that: The two ends of the pedal are provided with rotating shafts corresponding to the supporting frames, and the pedal is rotatably installed between the supporting frames arranged in parallel through the rotating shafts. A linkage driving device for adjusting the angle of the pedal is also connected between the pedals.

9. The lifting boarding device according to claim 8, characterized in that: The linkage drive device comprises a linkage rod and a second drive device for driving the pedal to rotate along the rotating shaft.

10. The lifting boarding device according to claim 9, characterized in that: The pedal is further provided with a sliding block corresponding to the support frame, and the support frame is provided with an arc groove corresponding to the sliding block. When the pedal rotates along the rotating shaft, the sliding block moves in the arc groove along the arc groove.

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