Lifting type scaffold for maintaining ship

Abstract

The utility model discloses a lifting type scaffold for maintaining a ship, which comprises at least three frame bodies which are nested layer by layer from inside to outside, the adjacent frame bodies are connected through a sliding structure, the frame body positioned on the innermost side is connected with a supporting plate through a guide structure, and a bottom foot is fixed at the lower end of the frame body positioned on the outermost side; each frame body comprises two end frames, the lower ends of the two end frames are fixedly connected through a connecting rod, and an in-place locking anti-falling structure is installed between every two adjacent frame bodies. Two mounting plates are fixedly mounted at the lower end of each frame body, servo motors are fixedly mounted at the lower ends of the mounting plates, winding rollers are fixed to output shafts of the servo motors, and one end of each winding roller is fixedly connected with a steel wire rope; the steel wire rope located on the innermost side is connected with the supporting plate through the upper pulley sleeve piece. The other steel wire ropes are connected with the frame body located on the inner side through the lower pulley suite. The lifting type scaffold for the maintenance ship has the advantages of being capable of sequentially lifting and locking in place and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolding, in particular to a lifting scaffolding for repairing ships. Background Art

[0002] In order to ensure the normal use of ships, they need to be inspected, maintained and repaired regularly to extend their service life. However, ships are large and high, and scaffolding is usually used during the maintenance of the exterior of the hull. The scaffolding currently used has the following problems:

[0003] 1. Temporary scaffolding is built layer by layer according to the required height. The structure is fixed and needs to be dismantled after use. It is time-consuming and has poor versatility, which reduces the efficiency of ship maintenance.

[0004] 2. The lifting scaffolding is driven by a single power to achieve lifting and lowering. For example, the scaffolding is lifted and lowered synchronously through the cooperation of a motor, a pulley set and a wire rope. It only uses a fall arrester to prevent falling. Once the fall arrester fails, the scaffolding will fall as a whole, which is unsafe. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide a lifting scaffold for repairing ships that can be raised and lowered sequentially, locked in place, and has high safety.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A lifting scaffold for ship repair comprises at least three frames nested layer by layer from the inside out, adjacent frames being connected by a sliding structure, the frame located on the innermost side being connected to a support plate by a guide structure, and the lower end of the frame located on the outermost side being fixed with a foot; the frame comprises two end frames, the lower ends of the two end frames being fixedly connected by a connecting rod, and a locking anti-falling structure being installed between adjacent frames;

[0008] Two mounting plates are fixedly mounted on the lower ends of the frames, servo motors are fixedly mounted on the lower ends of the mounting plates, winding rollers are fixed on the output shafts of the servo motors, and one end of the winding rollers is fixedly connected to the wire rope;

[0009] The innermost steel wire rope is connected to the support plate through the upper pulley set; the remaining steel wire ropes are connected to the inner frame through the lower pulley set.

[0010] When scaffolding is required for ship repairs, operators stand on the pallet and use the servo motor to drive the winding roller to reel in the wire rope. The lower and upper pulley assemblies work together to drive the pallet up and down. Each scaffold has two servo motors, allowing the scaffolds to be raised and lowered independently. Once in place, the anti-fall locking mechanism locks the scaffold in place, enhancing safety.

[0011] Among them, the guide structure includes four vertically arranged guide rods, which are arranged in a rectangular shape. The lower ends of the guide rods are fixedly connected to the connecting rods, and the upper ends of the guide rods are fixedly connected to the end frames through connecting blocks. The support plate is provided with guide holes that slide with the guide rods.

[0012] Wherein, both ends of the support plate are fixedly mounted downward on the reinforcing plate, and the reinforcing plate is provided with a clearance hole directly opposite to the guide hole, and the clearance hole is slidably matched with the guide rod.

[0013] The sliding structure includes sliding grooves provided at both ends of the end frame, sliding posts slidingly fitted in the sliding grooves, and the sliding posts are fixedly connected to the end frame located on the inner side through a sliding block.

[0014] Among them, the in-place locking anti-fall structure includes an electric cylinder fixedly installed on the upper ends of both sides of the end frame, and anti-fall plates are fixed on both sides of the lower end of the inner end frame and both sides of the reinforcement plate. Anti-fall holes are opened on the anti-fall plates, and the cylinder rod of the electric cylinder is fixed with an insertion rod, which is plugged into the anti-fall hole.

[0015] Wherein, the lower pulley assembly includes a lower fixed pulley, an upper fixed pulley, an inner movable pulley, an upper wheel frame and an inner wheel frame;

[0016] The upper wheel frame is fixedly mounted on the upper end of the end frame and the upper fixed pulley is rotatably mounted on the upper wheel frame. The steel wire rope is fixedly connected to the upper wheel frame after passing through the lower fixed pulley, the upper fixed pulley, and the inner movable pulley.

[0017] The inner wheel frame is fixedly mounted on the lower end of the inner end frame through an inner rod, and the inner movable pulley is rotatably mounted on the inner wheel frame;

[0018] The lower fixed pulley located at the outermost side is rotatably mounted on a rotating shaft, and the rotating shaft is fixedly mounted on the lower end of the end frame located at the outermost side;

[0019] The remaining lower fixed pulleys are rotatably mounted on the inner wheel frame and are located on one side of the inner movable pulley.

[0020] Among them, the upper pulley kit includes a lower fixed pulley, an upper fixed pulley, an inner movable pulley, an upper wheel frame and a support frame with the same structure as the lower pulley kit, the upper wheel frame is fixedly installed on the upper end of the end frame and the upper fixed pulley is rotatably installed on the upper wheel frame, the inner movable pulley is rotatably installed on the support frame, and the support frame is fixedly installed on the outer side of the lower end of the support plate, and the wire rope passes around the lower fixed pulley, the upper fixed pulley and the inner movable pulley and is fixedly connected to the upper wheel frame.

[0021] Wherein, along the vertical direction, the mounting plate of the frame body located on the inner side is arranged on both sides of the mounting plate of the frame body located on the outer side thereof.

[0022] In summary, the lifting scaffold for repairing ships has the advantages of being able to be raised and lowered in sequence, locked in place, and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a structural schematic diagram of a lifting scaffold for repairing ships.

[0024] Figure 2 for Figure 1 sectional view of .

[0025] Figure 3 for Figure 1 Schematic diagram of the rising state.

[0026] Figure 4 for Figure 3 Enlarged schematic diagram of point A in the middle.

[0027] Figure 5 for Figure 3 sectional view of .

[0028] Figure 6 for Figure 5 An enlarged schematic diagram of point B.

[0029] Figure 7 for Figure 5 An enlarged schematic diagram of point C.

[0030] Figure 8 Schematic diagram of the innermost frame. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional terms such as "upper, lower" and "top, bottom" are generally based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. Unless otherwise indicated, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention; the directional terms "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0032] like Figure 1-8 As shown, a lifting scaffold for repairing ships comprises at least three frames 1 nested layer by layer from the inside out, adjacent frames being connected by a sliding structure, the frame located on the innermost side being connected to a support plate 2 by a guide structure, and the lower end of the frame located on the outermost side being fixed with a foot 3; the frame comprises two end frames 4, the lower ends of the two end frames being fixedly connected by a connecting rod 5, and a locking anti-falling structure being installed between adjacent frames;

[0033] Two mounting plates 6 are fixedly mounted on the lower ends of the frames, servo motors 7 are fixedly mounted on the lower ends of the mounting plates, winding rollers 8 are fixed on the output shafts of the servo motors, and one end of the winding rollers is fixedly connected to the wire rope 9;

[0034] The innermost wire rope is connected to the support plate through the upper pulley sleeve; the remaining wire ropes are connected to the inner frame through the lower pulley sleeve 10.

[0035] When scaffolding is required for ship repairs, operators stand on the pallet and use the servo motor to drive the winding roller to reel in the wire rope. The lower and upper pulley assemblies work together to drive the pallet up and down. Each scaffold has two servo motors, allowing the scaffolds to be raised and lowered independently. Once in place, the anti-fall locking mechanism locks the scaffold in place, enhancing safety.

[0036] Through at least three frames nested layer by layer from the inside out, when the scaffolding is not needed, the servo motor drives the winding roller to rotate, loosens the wire rope, and the frame falls under its own gravity, reducing the occupied space and facilitating storage.

[0037] Specifically, during the rising process of the lifting scaffold, after the frame body located on the outside is in place, the in-place locking anti-fall structure locks the frame body in place, and then the frame body located on the inside starts to rise.

[0038] In practice, the guide structure includes four vertically arranged guide rods 11 arranged in a rectangular shape. The lower ends of the guide rods are fixedly connected to the connecting rods, and the upper ends of the guide rods are fixedly connected to the end frame via connecting blocks. The support plate is provided with guide holes that slide with the guide rods to facilitate guiding the movement of the support plate.

[0039] During implementation, both ends of the support plate are fixed downwardly on the reinforcing plate 12, and the reinforcing plate is provided with a clearance hole directly opposite the guide hole, and the clearance hole is slidably matched with the guide rod to increase the support force of the support plate and further improve stability.

[0040] During implementation, the sliding structure includes sliding grooves provided at both ends of the end frame, a sliding post 13 slidingly fitted in the sliding groove, and the sliding post is fixedly connected to the inner end frame via a slider 14, making the connection between adjacent frames more stable.

[0041] During implementation, the in-place locking anti-fall structure includes an electric cylinder 15 fixedly installed on the upper ends of both sides of the end frame, and anti-fall plates 16 are fixed on both sides of the lower end of the inner end frame and both sides of the reinforcement plate. Anti-fall holes are opened on the anti-fall plates, and the cylinder rod of the electric cylinder is fixed with an insert rod 17, which is plugged into the anti-fall hole.

[0042] In this way, after the frame is in place, the cylinder rod of the electric cylinder extends, driving the insertion rod to insert into the anti-fall hole of the anti-fall plate, supporting the frame at the upper end to prevent it from falling, thereby improving safety.

[0043] During implementation, the lower pulley assembly includes a lower fixed pulley 21, an upper fixed pulley 22, an inner movable pulley 23, an upper wheel frame 24 and an inner wheel frame 25;

[0044] The upper wheel frame is fixedly mounted on the upper end of the end frame and the upper fixed pulley is rotatably mounted on the upper wheel frame. The steel wire rope is fixedly connected to the upper wheel frame after passing through the lower fixed pulley, the upper fixed pulley, and the inner movable pulley.

[0045] The inner wheel frame is fixedly mounted on the lower end of the inner end frame via an inner rod 26, and the inner movable pulley is rotatably mounted on the inner wheel frame;

[0046] The lower fixed pulley located at the outermost side is rotatably mounted on a rotating shaft 27, and the rotating shaft is fixedly mounted on the lower end of the end frame located at the outermost side;

[0047] The remaining lower fixed pulleys are rotatably mounted on the inner wheel frame and are located on one side of the inner movable pulley.

[0048] In this way, by arranging the lower fixed pulley, the upper fixed pulley, the inner movable pulley, the upper wheel frame and the inner wheel frame, the frame connected to the inner movable pulley can be driven to rise when the wire rope is wound, thereby driving the upper part of the frame.

[0049] During implementation, the upper pulley kit includes a lower fixed pulley, an upper fixed pulley, an inner movable pulley, an upper wheel frame and a support frame 28 with the same structure as the lower pulley kit. The upper wheel frame is fixedly mounted on the upper end of the end frame and the upper fixed pulley is rotatably mounted on the upper wheel frame. The inner movable pulley is rotatably mounted on the support frame. The support frame is fixedly mounted on the outer side of the lower end of the support plate. The wire rope passes around the lower fixed pulley, the upper fixed pulley and the inner movable pulley and is fixedly connected to the upper wheel frame.

[0050] In this way, when the wire rope is reeled in, the supporting plate is driven to rise through the inner movable pulley.

[0051] During implementation, along the vertical direction, the mounting plate of the frame located on the inner side is arranged on both sides of the mounting plate of the frame located on the outer side.

[0052] This can avoid collision of the servo motor and better reduce the space occupied by the entire lifting scaffolding in the retracted state.

[0053] Specifically, the system also includes a PLC controller that controls the servo motors and electric cylinders, enabling the sequential raising and lowering of the lift scaffold and locking it in place. Locking mechanisms are installed between any two adjacent scaffolds, as well as between a scaffold and its pallet, improving safety and preventing the simultaneous falls of currently used lift scaffolds.

[0054] Finally, it should be noted that those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A lifting scaffold for repairing a ship, characterized in that: The frame comprises at least three frames nested layer by layer from the inside out, adjacent frames are connected by a sliding structure, the frame located on the innermost side is connected to the support plate by a guide structure, and the lower end of the frame located on the outermost side is fixed with a foot; the frame comprises two end frames, the lower ends of the two end frames are fixedly connected by a connecting rod, and an anti-falling structure is installed in place between adjacent frames; Two mounting plates are fixedly mounted on the lower ends of the frames, servo motors are fixedly mounted on the lower ends of the mounting plates, winding rollers are fixed on the output shafts of the servo motors, and one end of the winding rollers is fixedly connected to the wire rope; The innermost steel wire rope is connected to the support plate through the upper pulley set; the remaining steel wire ropes are connected to the inner frame through the lower pulley set.

2. The lifting scaffold for ship repair according to claim 1, characterized in that: The guide structure includes four vertically arranged guide rods, which are arranged in a rectangular shape. The lower ends of the guide rods are fixedly connected to the connecting rods, and the upper ends of the guide rods are fixedly connected to the end frames through connecting blocks. The support plate is provided with guide holes that slide with the guide rods.

3. The lifting scaffold for repairing a ship according to claim 1, characterized in that: The two ends of the support plate are fixedly mounted downward on the reinforcing plate. The reinforcing plate is provided with a clearance hole directly opposite to the guide hole, and the clearance hole is slidably matched with the guide rod.

4. The lifting scaffold for repairing a ship according to claim 1, characterized in that: The sliding structure includes sliding grooves arranged at both ends of the end frame, and sliding columns slidingly matched in the sliding grooves. The sliding columns are fixedly connected to the end frame located on the inner side through sliding blocks.

5. The lifting scaffold for repairing a ship according to claim 2, characterized in that: The in-place locking anti-fall structure includes an electric cylinder fixedly installed on the upper ends of both sides of the end frame, and anti-fall plates are fixed on both sides of the lower end of the inner end frame and both sides of the reinforcement plate. Anti-fall holes are opened on the anti-fall plates, and the cylinder rod of the electric cylinder is fixed with an insertion rod, which is plugged into the anti-fall hole.

6. The lifting scaffold for repairing a ship according to claim 1, characterized in that: The lower pulley assembly comprises a lower fixed pulley, an upper fixed pulley, an inner movable pulley, an upper pulley frame and an inner pulley frame; The upper wheel frame is fixedly mounted on the upper end of the end frame and the upper fixed pulley is rotatably mounted on the upper wheel frame. The steel wire rope is fixedly connected to the upper wheel frame after passing through the lower fixed pulley, the upper fixed pulley, and the inner movable pulley. The inner wheel frame is fixedly mounted on the lower end of the inner end frame through an inner rod, and the inner movable pulley is rotatably mounted on the inner wheel frame; The lower fixed pulley located at the outermost side is rotatably mounted on a rotating shaft, and the rotating shaft is fixedly mounted on the lower end of the end frame located at the outermost side; The remaining lower fixed pulleys are rotatably mounted on the inner wheel frame and are located on one side of the inner movable pulley.

7. The lifting scaffold for repairing a ship according to claim 1, characterized in that: The upper pulley kit includes a lower fixed pulley, an upper fixed pulley, an inner movable pulley, an upper wheel frame and a supporting plate frame with the same structure as the lower pulley kit. The upper wheel frame is fixedly installed on the upper end of the end frame and the upper fixed pulley is rotatably installed on the upper wheel frame. The inner movable pulley is rotatably installed on the supporting plate frame, and the supporting plate frame is fixedly installed on the outer side of the lower end of the supporting plate. The steel wire rope passes around the lower fixed pulley, the upper fixed pulley and the inner movable pulley and is fixedly connected to the upper wheel frame.

8. The lifting scaffold for repairing a ship according to claim 1, characterized in that: In the vertical direction, the mounting plate of the inner frame is arranged on both sides of the mounting plate of the outer frame.

Images