An inspection platform for a marine vessel

By designing an automated ship inspection platform, which utilizes a track mechanism and a lifting mechanism to achieve stable movement and vertical lifting of the platform, the problems of welding and assembly difficulties of existing platforms have been solved, reducing the weight of the hull and construction costs, and improving inspection efficiency and functionality.

CN224491446UActive Publication Date: 2026-07-14CHENGXI SHIPYARD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGXI SHIPYARD
Filing Date
2025-05-26
Publication Date
2026-07-14

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Abstract

The utility model relates to platform technical field for ship structure inspection especially a kind of inspection platform of ship, including track mechanism, two track mechanisms are all welded with two vertical rods outside, every two vertical rods are all commonly provided with displacement mechanism between, displacement mechanism is all screwed with support assembly, two support assemblies are commonly welded with lifting mechanism between, the lower end of lifting mechanism is installed with platform mechanism, lifting mechanism includes steel rope, the lower end of steel rope is installed with fixed seat, platform mechanism includes the steel frame of being installed with fixed seat, steel frame lower end all is welded with support column around, compared with prior art, the utility model has strong structural functionality, effectively reduce the steel structure welding and assembly workload of platform, thereby avoid to reduce the loading capacity of ship after increasing ship body structure weight, and it is convenient to make the whole platform mechanism movable to different positions, improve the efficiency of staff to carry out inspection work.
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Description

Technical Field

[0001] This utility model relates to the technical field of ship structure inspection platforms, and in particular to a ship inspection platform. Background Technology

[0002] The only way to ensure that a ship's structural condition is maintained in accordance with applicable requirements is to conduct routine inspections of all components throughout its service life. This will ensure that the ship is protected from damage such as cracks, buckling, or deformation caused by corrosion, overloading, or collisions, while ensuring that the thickness reduction of the steel plates is within permissible limits. Appropriate access is essential for comprehensive and close-up inspection of the hull structure. Sufficient permanent inspection access should be provided during the ship's design and construction phases, and inspection platforms serve as the platforms for personnel and passage within these inspection access areas.

[0003] Existing ship structural inspection platforms are mostly fixedly welded inside the inspection channel. Because routine inspections are required at different heights and locations within the ship's interior, these platforms are typically designed to be long and high, resulting in a large workload for welding and assembly, complicated installation, and significant weight. This increases the weight of the hull structure, reduces the ship's loading capacity, and raises shipyard construction costs. Furthermore, existing ship inspection platforms have a simple structure and poor functionality, leading to unsatisfactory application results. Therefore, we propose a new ship inspection platform to address these issues. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a ship inspection platform.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a ship inspection platform, including a track mechanism. Two uprights are welded to the outer sides of each of the two track mechanisms. A displacement mechanism is provided between each pair of uprights. Each displacement mechanism is screwed with a support component. A lifting mechanism is welded between the two support components. A platform mechanism is installed at the lower end of the lifting mechanism.

[0006] The lifting mechanism includes a steel rope, the lower end of which is fitted with a fixed base. The platform mechanism includes a steel frame that is mounted on the fixed base. Support columns are welded around the lower end of the steel frame. The lower ends of the four support columns are connected to a carrier plate assembly. Sliding components are provided on both sides of the upper end of the carrier plate assembly. The sliding components are slidably connected to the track mechanism.

[0007] In a further preferred embodiment, the track mechanism includes a side frame welded to two uprights, a track bar symmetrically welded to one side of the side frame, a roller groove provided on the corresponding side of each track bar, and welded parts welded at equal intervals on the outer side of the side frame.

[0008] In a further preferred embodiment, the sliding assembly includes a support strip disposed on the upper end of the carrier plate assembly. The upper end of the support strip is provided with a through hole that engages with a support column. A support plate is welded to one side of the support strip, and a limit block is welded to one side of the support plate. A slider is integrally connected to one end of the limit block. Grooves are provided at both ends of the slider, and roller assemblies are installed at both ends of the slider. A portion of the rollers in the roller assembly is located within the groove cavity, and the rollers in the roller assembly are slidably engaged with the roller rail groove.

[0009] In a further preferred embodiment, the carrier plate assembly includes an outer plate, and two sets of inner plates are movably disposed within the inner cavity of the outer plate. Each inner plate is connected to two support columns. Mounting holes are equidistantly arranged on corresponding sides of the inner plates. Springs are installed within the inner cavities of the mounting holes. A connecting column is connected to one end of each pair of springs. A reinforcing strip is connected to the middle of the inner cavity of the outer plate and is fixedly sleeved with multiple sets of connecting columns.

[0010] In a further preferred embodiment, the displacement mechanism includes a crossbeam connected to two uprights. A square groove is provided at the upper end of the crossbeam. A lead screw is rotatably connected to the inner cavity of the square groove. One end of the lead screw passes through the square groove and is fitted with a first bevel gear. A housing is installed on the outer side of one of the uprights. A servo motor is installed at the top of the inner cavity of the housing. A second bevel gear that meshes with the first bevel gear is installed at the output end of the servo motor.

[0011] In a further preferred embodiment, the support assembly includes a threaded block that is screwed to the lead screw, and a steel plate is mounted on the upper end of the threaded block.

[0012] In a further preferred embodiment, the lifting mechanism includes a housing welded to a steel plate, with reinforcing plates welded equidistantly between the steel plate and the housing, a cover plate screwed to the upper end of the housing, a winch installed inside the housing, and one end of the steel rope wound around the winch.

[0013] In a further preferred embodiment, each side of the track bar is provided with a sliding groove, and both ends of the slider are welded with sliding columns that slide in contact with the sliding groove.

[0014] In a further preferred embodiment, a spotlight is installed at the lower end of the steel frame.

[0015] In a further preferred embodiment, a reinforcing assembly is installed at the upper end of the steel frame. The reinforcing assembly includes fixing rods installed around the upper end of the steel frame. One end of each of the four fixing rods is connected to a fixing sleeve, and the fixing sleeve is welded to the steel rope.

[0016] The advantages and beneficial effects of this utility model are as follows: 1. By welding and fixing the welded parts on the outside of the side frame of the track mechanism to the inside two sides of the inspection channel on the ship, and then welding the uprights, the threaded blocks of the support component are screwed and assembled with the screw of the displacement mechanism, and the displacement mechanism is assembled and fixed with the uprights. Then the lifting mechanism is welded and assembled with the support component, and then the sliding component of the platform mechanism is assembled between the two rails of the track mechanism. Then the fixed seat of the lifting mechanism is assembled with the steel frame of the platform mechanism, thereby welding and assembling the entire inspection platform. This effectively avoids the phenomenon of a large amount of steel structure welding and assembly in traditional inspection platforms, thus avoiding the reduction of the ship's loading capacity after increasing the weight of the hull structure, and thus effectively reducing the construction cost and the difficulty of platform welding and assembly.

[0017] 2. The output of the servo motor drives the second bevel gear to rotate, which in turn drives the meshing first bevel gear and lead screw to rotate. This causes the threaded block on the outside of the lead screw to move back and forth within the square groove, facilitating the movement of the entire lifting mechanism via the steel plate. This, in turn, causes the platform mechanism to move. The sliding components of the platform mechanism slide within the track mechanism's inner cavity, ensuring stable movement of the entire platform mechanism. This allows workers to inspect ship structures at different locations within the platform mechanism. Furthermore, the winch drives the steel rope to extend and retract, allowing the fixed seat at the lower end of the steel rope to lower the entire platform mechanism, facilitating inspection of ship structures at different heights. This allows the entire platform mechanism to automatically move to different positions, improving the efficiency of the inspection work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a ship inspection platform proposed in this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the disassembled track mechanism of a ship inspection platform proposed in this utility model.

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of a partial displacement mechanism for a ship inspection platform proposed in this utility model.

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the support components and lifting mechanism of a ship inspection platform proposed in this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of a ship inspection platform proposed in this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of a sliding component of a ship inspection platform proposed in this utility model.

[0024] Figure 7 This is a three-dimensional structural diagram of a reinforcement component for a ship inspection platform proposed in this utility model;

[0025] Figure 8 This is a three-dimensional cross-sectional view of the carrier plate assembly of a ship inspection platform proposed in this utility model.

[0026] In the diagram: 1. Track mechanism; 11. Side frame; 12. Track bar; 13. Roller track groove; 14. Slide groove; 2. Upright pole; 3. Displacement mechanism; 31. Crossbeam; 32. Square channel; 33. Lead screw; 34. First bevel gear; 35. Housing; 36. Servo motor; 37. Second bevel gear; 4. Support assembly; 41. Steel plate; 42. Threaded block; 43. Reinforcing plate; 5. Lifting mechanism; 51. Box; 52. Cover plate; 53. Winch; 54. Steel rope; 55. Fixed seat; 6. Platform mechanism 61. Steel frame; 62. Support column; 63. Carrier plate assembly; 631. Outer plate; 632. Inner plate; 633. Mounting hole; 634. Spring; 635. Connecting column; 636. Reinforcing strip; 64. Fence; 65. Sliding assembly; 651. Support strip; 652. Through hole; 653. Support plate; 654. Limiting block; 655. Sliding block; 656. Roller assembly; 657. Sliding column; 66. Spotlight; 67. Reinforcing assembly; 671. Fixing rod; 672. Fixing sleeve; 7. Welded parts. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0028] Reference Figure 1-2 As shown, a ship inspection platform includes a track mechanism 1. Two uprights 2 are welded to the outer sides of each track mechanism 1. Each track mechanism 1 includes a side frame 11 welded to the two uprights 2. Track strips 12 are symmetrically welded to one side of each side frame 11. Roller grooves 13 are provided on the corresponding sides of each track strip 12. Welded components 7 are welded at equal intervals to the outer sides of the side frame 11.

[0029] By welding and fixing the welded parts 7 on the outside of the side frame 11 to both sides of the inspection channel on the ship, and designing two rails 12 on the outside of the side frame 11, the sliding component 65 in the platform mechanism 6 can be easily assembled between the two rails 12, which facilitates the flexible sliding of the sliding component 65 in the inner cavity of the roller rail groove 13, thereby improving the movement stability of the platform mechanism 6.

[0030] Reference Figure 1 and 3 As shown in Figure 4, a displacement mechanism 3 is provided between every two uprights 2. The displacement mechanism 3 includes a crossbeam 31 connected to the two uprights 2. A square groove 32 is provided at the upper end of the crossbeam 31. A lead screw 33 is rotatably connected to the inner cavity of the square groove 32. One end of the lead screw 33 passes through the square groove 32 and is equipped with a first bevel gear 34. A housing 35 is installed on the outside of one upright 2. A servo motor 36 is installed at the top of the inner cavity of the housing 35. A second bevel gear 37 that meshes with the first bevel gear 34 is installed at the output end of the servo motor 36.

[0031] Each displacement mechanism 3 is screwed with a support component 4. The support component 4 includes a threaded block 42 that is screwed to the lead screw 33. A steel plate 41 is installed on the upper end of the threaded block 42.

[0032] The lifting mechanism 5 includes a steel rope 54, with a fixed seat 55 installed at the lower end of the steel rope 54. The lifting mechanism 5 includes a box 51 welded to a steel plate 41. Reinforcing plates 43 are welded at equal intervals between the steel plate 41 and the box 51. A cover plate 52 is screwed to the upper end of the box 51. A winch 53 is installed in the inner cavity of the box 51. One end of the steel rope 54 is wound around the winch 53.

[0033] The output of the servo motor 36 drives the second bevel gear 37 to rotate, which in turn drives the meshing first bevel gear 34 and lead screw 33 to rotate. This causes the threaded block 42 on the outer side of the lead screw 33 to move back and forth under the constraint of the square groove 32. This allows the threaded block 42 to drive the entire lifting mechanism 5 to move back and forth via the steel plate 41, thereby displacing the platform mechanism 6 through the lifting mechanism 5. This facilitates the inspection of the ship structure at different positions within the platform mechanism 6 by personnel. Furthermore, the connection and support strength of the box 51 is improved by welding multiple sets of reinforcing plates 43 between the steel plate 41 and the box 51. The winch... The machine 53 drives the steel rope 54 to extend and rewind, which facilitates the lower fixed seat 55 of the steel rope 54 to move the entire platform mechanism 6 downward, making it convenient to inspect ship structures at different heights and effectively improving the inspection results. The entire platform mechanism 6 can be automatically moved horizontally and vertically, which makes it convenient to move the entire platform mechanism 6 to different positions, improving the efficiency of the staff in carrying out inspection work. It also avoids the increase in the weight of the hull structure and the reduction of the ship's loading capacity after a large amount of steel structure welding and assembly in traditional inspection platforms, thereby effectively reducing the shipyard's construction costs and the difficulty of platform welding and assembly.

[0034] Reference Figure 5 and 8 As shown, a platform mechanism 6 is installed at the lower end of the lifting mechanism 5. The platform mechanism 6 includes a steel frame 61 installed with the fixed seat 55. Support columns 62 are welded around the lower end of the steel frame 61. The lower ends of the four support columns 62 are connected to a carrier plate assembly 63. The carrier plate assembly 63 includes an outer plate 631. Two sets of inner plates 632 are movably arranged in the inner cavity of the outer plate 631. Each inner plate 632 is connected to two support columns 62. Mounting holes 633 are equidistantly arranged on the corresponding side of the inner plate 632. Springs 634 are installed in the inner cavity of each mounting hole 633. A connecting column 635 is connected to the corresponding end of each pair of springs 634. A reinforcing strip 636 is connected to the middle of the inner cavity of the outer plate 631 and is fixedly sleeved with multiple sets of connecting columns 635.

[0035] The two movable inner plates 632 designed into the inner cavity of the outer plate 631 of the carrier plate assembly 63 facilitate the use of different inspection channel widths on different ships. By pushing the inner plate 632, the spring 634 in the inner cavity of the mounting hole 633 on one side of the inner plate 632 is compressed, so that a part of the inner plate 632 enters the inner cavity of the outer plate 631, thereby shortening the width of the entire carrier plate assembly 63 and making it suitable for use on ships with various inspection channel widths.

[0036] Reference Figure 5-6As shown, sliding components 65 are provided on both sides of the upper end of the carrier plate assembly 63. The sliding components 65 are slidably connected to the track mechanism 1. The sliding components 65 include a support bar 651 provided on the upper end of the carrier plate assembly 63. The upper end of the support bar 651 is provided with a through hole 652 that is sleeved with the support column 62. A support plate 653 is welded to one side of the support bar 651. A limit block 654 is welded to one side of the support plate 653. A slider 655 is integrally connected to one end of the limit block 654. Both ends of the slider 655 are provided with grooves. Roller assemblies 656 are installed on both ends of the slider 655. A part of the roller in the roller assembly 656 is located in the inner cavity of the groove. The rollers in the roller assembly 656 are slidably connected to the roller rail groove 13. A sliding groove 14 is provided on the corresponding side of the track bar 12. Sliding columns 657 that are slidably connected to the sliding groove 14 are welded to both ends of the slider 655.

[0037] The sliding assembly 65 is inserted into the outside of the support column 62 through the through hole 652 at the upper end of the support bar 651, thereby plugging and installing the entire sliding assembly 65. The support plate 653 on one side of the support bar 651 inserts the limiting block 654 and the slider 655 between the two track bars 12. The rollers of the roller assembly 656 at both ends of the limiting block 654 roll in the inner cavity of the roller track groove 13, while the sliding columns 657 at both ends of the slider 655 slide in the inner cavity of the slide groove 14. This allows the sliding assembly 65 to slide within the inner cavity of the track mechanism 1, thereby driving the entire platform mechanism 6 to move stably.

[0038] Reference Figure 5 and 7 As shown, a reinforcement component 67 is installed on the upper end of the steel frame 61. The reinforcement component 67 includes fixing rods 671 installed around the upper end of the steel frame 61. One end of each of the four fixing rods 671 is connected to a fixing sleeve 672. The fixing sleeve 672 is welded to the steel rope 54. By using the fixing sleeve 672 to weld the multiple sets of fixing rods 671 on the upper end of the steel frame 61 to the steel rope 54, the hoisting stability of the steel frame 61 and the entire platform mechanism 6 is improved.

[0039] Reference Figure 5 As shown, a spotlight 66 is installed at the lower end of the steel frame 61. The spotlight 66 is an existing lamp that can rotate in all directions, which facilitates directional lighting for staff when inspecting the ship's structure and effectively improves the usage effect.

[0040] Working Principle: This utility model uses an external remote control device to remotely control the winch 53 and servo motor 36. During assembly, the welded parts 7 on the outer side of the side frame 11 of the track mechanism 1 are welded and fixed to both sides of the inspection channel on the ship. Then, the upright 2 is welded. After the threaded block 42 of the support assembly 3 is screwed and assembled with the lead screw 33 of the displacement mechanism, the displacement mechanism 3 is assembled and fixed to the upright 2. Then, the lifting mechanism 5 is welded and assembled with the support assembly 4. Then, the sliding assembly 65 of the platform mechanism 6 is assembled between the two rails 12 of the track mechanism 1. Then, the lifting mechanism is lifted. The fixed base 55 of mechanism 5 is assembled with the steel frame 61 of platform mechanism 6, thereby welding and assembling the entire inspection platform. This effectively avoids the large amount of steel structure welding and assembly required in traditional inspection platforms, thus avoiding the reduction of the ship's loading capacity due to increased hull weight. This effectively reduces the shipyard's construction costs and the difficulty of platform welding and assembly. During inspection, workers stand on the outer plate 631 and inner plate 632 of the carrier plate assembly 63, and start the servo motor 36 via remote control. The output of the servo motor 36 drives the second bevel gear 37 to rotate, and the second bevel gear 37... The first bevel gear 34 and the lead screw 33 mesh with it rotate, and the threaded block 42 on the outside of the lead screw 33 moves back and forth under the limitation of the square groove 32. This allows the threaded block 42 to drive the entire lifting mechanism 5 to move back and forth through the steel plate 41. In turn, the lifting mechanism 5 drives the platform mechanism 6 to move. The limiting block 654 and the slider 655 of the sliding component 65 of the platform mechanism 6 are inserted between the two rails 12. The rollers of the roller components 656 at both ends of the limiting block 654 roll in the inner cavity of the roller rail groove 13, while the sliding columns 657 at both ends of the slider 655 slide in the inner cavity of the sliding groove 14. This allows the sliding component to move back and forth. The 65 slides within the inner cavity of the track mechanism 1, thereby driving the entire platform mechanism 6 to move stably. This facilitates the inspection of ship structures at different positions within the platform mechanism 6 by personnel. Furthermore, the winch 53 drives the steel rope 54 to extend and retract, allowing the fixed seat 55 at the lower end of the steel rope 54 to lower the entire platform mechanism 6, facilitating the inspection of ship structures at different heights and effectively improving inspection results. The platform mechanism 6 can be automatically moved horizontally and vertically, allowing it to automatically move to different positions and improving the efficiency of inspection work.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A ship inspection platform, comprising a track mechanism, characterized in that, Two uprights are welded to the outer sides of each of the two track mechanisms. A displacement mechanism is provided between each pair of uprights. Each displacement mechanism is screwed with a support component. A lifting mechanism is welded between the two support components. A platform mechanism is installed at the lower end of the lifting mechanism. The lifting mechanism includes a steel rope, the lower end of which is fitted with a fixed base. The platform mechanism includes a steel frame that is mounted on the fixed base. Support columns are welded around the lower end of the steel frame. The lower ends of the four support columns are connected to a carrier plate assembly. Sliding components are provided on both sides of the upper end of the carrier plate assembly. The sliding components are slidably connected to the track mechanism.

2. The ship inspection platform according to claim 1, characterized in that, The track mechanism includes a side frame welded to two uprights. Track bars are symmetrically welded to one side of the side frame, and roller grooves are provided on the corresponding side of each track bar. Welded parts are welded at equal intervals on the outer side of the side frame.

3. The ship inspection platform according to claim 2, characterized in that, The sliding assembly includes a support bar disposed on the upper end of the carrier plate assembly. The upper end of the support bar is provided with a through hole that fits into a support column. A support plate is welded to one side of the support bar, and a limit block is welded to one side of the support plate. A slider is integrally connected to one end of the limit block. Both ends of the slider are provided with grooves, and roller assemblies are installed at both ends of the slider. A portion of the rollers in the roller assembly is located in the inner cavity of the groove, and the rollers in the roller assembly are slidably connected to the roller rail groove.

4. The ship inspection platform according to claim 3, characterized in that, The carrier plate assembly includes an outer plate, and two sets of inner plates are movably disposed in the inner cavity of the outer plate. Each inner plate is connected to two support columns. Mounting holes are provided at equal intervals on corresponding sides of the inner plates. Springs are installed in the inner cavities of the mounting holes. A connecting column is connected to one end of each pair of springs. A reinforcing strip is connected to the middle of the inner cavity of the outer plate and is fixedly sleeved with multiple sets of connecting columns.

5. A ship inspection platform according to claim 1, characterized in that, The displacement mechanism includes a crossbeam connected to two uprights. A square groove is provided at the upper end of the crossbeam. A lead screw is rotatably connected to the inner cavity of the square groove. One end of the lead screw passes through the square groove and is equipped with a first bevel gear. A housing is installed on the outer side of one of the uprights. A servo motor is installed at the top of the inner cavity of the housing. A second bevel gear that meshes with the first bevel gear is installed at the output end of the servo motor.

6. A ship inspection platform according to claim 5, characterized in that, The support assembly includes a threaded block that is screwed to the lead screw, and a steel plate is installed on the upper end of the threaded block.

7. A ship inspection platform according to claim 6, characterized in that, The lifting mechanism includes a box body welded to a steel plate, with reinforcing plates welded at equal intervals between the steel plate and the box body. A cover plate is screwed to the upper end of the box body, and a winch is installed inside the box body. One end of the steel rope is wound around the winch.

8. A ship inspection platform according to claim 3, characterized in that, Each of the track bars has a groove on one side, and both ends of the slider are welded with sliding columns that slide in contact with the groove.

9. A ship inspection platform according to claim 1, characterized in that, A spotlight is installed at the lower end of the steel frame.

10. A ship inspection platform according to claim 1, characterized in that, A reinforcing assembly is installed at the upper end of the steel frame. The reinforcing assembly includes fixed rods installed around the upper end of the steel frame. One end of each of the four fixed rods is connected to a fixed sleeve, which is welded to the steel rope.