108 results about "Gangway" patented technology

The invention discloses a hierarchical cooperative motion control method for a ship dynamic positioning and wave compensation embarkation system. The method comprises the following steps: acquiring historical motion data of a ship; the historical motion data of the ship are fused, and the current ship posture and speed are obtained; the prediction model generates a predicted value of the disturbance of the ship in the future preset time; extracting to obtain a low-frequency slow drift motion component; the total output force of the thruster is calculated, and the ship dynamic positioning system controls the thruster to work based on the total output force of the thruster so as to compensate the low-frequency slow drift motion component; a Stewart platform in the wave compensation embarkation system controls supporting legs to work based on the target lengths of the supporting legs so as to compensate low-frequency motion left after compensation of the ship dynamic positioning system and high-frequency motion which is not compensated; and residual disturbance after the Stewart platform is compensated is compensated through the gangway ladder. According to the invention, an energy distribution mode that low-frequency disturbance is compensated by a ship dynamic positioning system and high-frequency disturbance is compensated by a wave compensation embarkation system can be realized.

The invention discloses a test verification platform and a test verification method for a motion compensation gangway ladder of an offshore wind power operation and maintenance ship. The platform comprises a system calculation and control center, an environment simulation vibration platform, an active motion compensation execution mechanism, a high-precision sensing and sensing module, a multi-channel data acquisition and storage system, an offshore wind turbine target platform module and an optical motion capture module. The platform reproduces six-degree-of-freedom motion of the operation and maintenance ship through integrated cooperation and high fidelity, simulates active compensation of a gangway ladder and dynamic characteristics of a hydraulic system, and accurately measures key parameters such as poses, forces / torques and the like by using multiple sensors and an optical capture technology. The method comprises the steps of motion instruction synthesis, platform motion reproduction, compensation action simulation, data synchronous acquisition and performance evaluation. According to the invention, high-precision land simulation verification of ship-gangway ladder-fan dynamic coupling is realized, the problems of high cost, high risk and poor repeatability of offshore actual measurement are effectively solved, and a reliable and efficient solution is provided for performance verification of a motion compensation system.

The invention discloses six-degree-of-freedom wave compensation embarkation equipment suitable for complex sea conditions and a control method of the six-degree-of-freedom wave compensation embarkation equipment. The six-degree-of-freedom wave compensation embarkation equipment comprises a base platform fixed to an operation ship deck; a lower platform of the Stewart parallel mechanism is connected with the base platform, and an upper platform of the Stewart parallel mechanism is connected with the lower platform through six hydraulic cylinders; the embarkation gangway ladder system is mounted on the upper platform; the hydraulic servo driving system is used for driving the six hydraulic cylinders; the intelligent sensing system is used for collecting ship motion data and relative pose data of the target platform; the intelligent control system is electrically connected with the hydraulic servo driving system and the intelligent sensing system; wherein the intelligent control system is configured to execute a compound control algorithm based on a nonlinear extended state observer and nonlinear model predictive control so as to drive the hydraulic servo driving system and compensate ship motion. The embarkation equipment provided by the invention has the advantages of high precision, high stability and strong robustness, and can realize accurate and stable compensation of complex sea conditions.

The compensation type butt joint structure comprises a multi-angle compensation mechanism and a hoop, the hoop comprises a clamping seat, two clamping jaws and a driver, the two clamping jaws are hinged to the two sides of the clamping seat respectively, the driver is installed on the clamping seat, and a transmission part of the driver is connected with the two clamping jaws respectively; the multi-angle compensation mechanism comprises a connector assembly, the connector assembly comprises a hinge rod, a front end plate and a rear end plate, the two ends of the hinge rod are connected with the front end plate and the rear end plate in a horizontal hinge mode and a vertical hinge mode respectively, the front end plate is connected with the clamping base, and the rear end plate is used for being connected with a gallery bridge of the marine embarkation gangway ladder. Longitudinal displacement and swing to a certain degree can be achieved, jolt caused by wave fluctuation can be passively compensated, and the stability of the boarding gangway ladder on the sea is guaranteed. The horizontal opening and closing type structure of the hoop is combined with passive compensation of the clamping jaw to adapt to different tower columns, and the safety of workers and equipment is protected to a great extent.

The invention discloses a Y-shaped supporting device for an exposed deck of a ship. The problem of space interference between a traditional supporting column and a gangway ladder is solved. The upper ends of the Y-shaped supporting columns are fixedly connected with the lower surface of the exposed deck, and the lower ends of the Y-shaped supporting columns are connected with supporting seats. The Y-shaped supporting column comprises a vertical supporting column, a V-shaped inclined strut and a transverse connecting plate, an annular reinforcing rib is arranged at the bottom of the vertical supporting column and welded to the upper deck, the two inclined supporting columns of the V-shaped inclined strut are symmetrically distributed, and the two ends of the transverse connecting plate extend to enlarge the supporting face. The component is integrally formed by I-shaped steel and is provided with triangular lightening holes and a fillet transition structure, and the strength and the light weight are both considered. The rescue boat crane mounting scene can be adapted by adjusting the fillet radius, the reliability is high, the construction is simplified, and the cost is reduced.

The invention relates to the technical field of ships, and particularly discloses a ship springboard structure which comprises a springboard body and a buffer roller device. The springboard body is provided with a roller end and a hook plate end which are arranged at an interval in the first direction; the buffering roller device comprises a roller framework and a limiting and locking structure; the roller framework comprises a cross brace, supporting legs and universal wheels; the transverse support extends in the second direction, and the two supporting legs are arranged on the two opposite sides of the transverse support in the second direction respectively; the universal wheels are arranged on the sides, in the third direction, of the supporting legs and are configured to be capable of making contact with a ship deck. The limiting and locking structure is arranged on the transverse support, and the hook plate end is in lap joint with the transverse support and is connected with the limiting and locking structure. The buffer roller device is mounted at the hook plate end of the springboard, so that the problems of suspension, slipping, breakage and the like of the springboard due to large height difference between a ship and a wharf can be effectively relieved, and the safety of personnel getting on and off the ship is guaranteed.

This invention provides a berthing adaptation calculation method and system based on a CAD / CAE composite model, belonging to the field of ship berthing auxiliary decision-making technology. It includes: constructing a loading stability calculation model and a three-dimensional profile model database based on the ship loading manual and an initial model containing geometric information; integrating hull geometry, stability, and hydrodynamic performance data into a unified composite model, and defining data dependencies and update triggering rules; solving heave and surge response characteristics based on a wave model, and calculating limit values ​​in conjunction with wave parameters; calculating the safe range of the air gap height at the platform outlet based on the gangway overlap geometry, combined with limit values, tides, and load changes, and dynamically quantifying the risk; and using real-world data to drive online calibration of the composite model and dynamic simulation of the berthing overlap process. This invention achieves accurate dynamic calculation and risk assessment of the air gap under multi-source data fusion, adapting to the berthing needs of multiple ships, and improving berthing safety and operational continuity.

The application provides a kind of gangway door function and durability test automation device and system, belongs to helicopter gangway door function and durability test technical field, the fixed rack in the device is arranged with door opening electric servo in the middle of upper end, and the extending end of door opening electric servo is provided with force handle;Two fixed pulleys are arranged on the both sides of the upper end of fixed rack, and a motor is arranged in the middle of the lower end of fixed rack, a speed change mechanism is arranged on the motor, the speed change mechanism is connected with two sides power flywheel through transmission shaft, one end of each cable is connected with one power flywheel, two cables are respectively through the fixed pulley on the both sides of the upper end of fixed rack, and the other end of two cables are connected with test piece hatch;Switch lock electric servo is installed on the hatch of test piece, and switch lock electric servo is connected with hatch lock handle through handle connecting mechanism;It can simulate the real boundary condition and various test working conditions of gangway door function and durability test, and realize the stable operation of gangway door multiple opening and closing cycle action.

The utility model discloses a wave compensation function personnel embarkation gangway ladder capable of being installed on a fixed or floating platform. The wave compensation function personnel embarkation gangway ladder comprises a wave compensation function personnel embarkation gangway ladder body which is installed on an offshore platform and matched with a ship. Through the arrangement of a series of structures, the whole device can be fixed on the offshore platform, and a wave compensation function personnel embarkation gangway ladder body does not need to be installed on each ship, so that compared with the mode that a wave compensation function personnel embarkation gangway ladder body is installed on each ship in the prior art, the cost is obviously reduced, and the working efficiency is improved. The inclination angle, the orientation angle and the length of the telescopic embarkation gangway ladder body can be adjusted, the motion of the target ship is compensated through the controlled motion of the telescopic embarkation gangway ladder body, and therefore people can use the telescopic embarkation gangway ladder conveniently; in addition, after the orientation angle of the telescopic embarkation gangway ladder body is adjusted, the telescopic embarkation gangway ladder body can be stably fixed in a clamping and fixing mode through a plurality of clamping rods.

The invention relates to an active wave motion compensation trestle control method based on LSTM pose prediction and MPC optimization control, belongs to the technical field of ocean wave compensation control, and aims at solving the problems that an existing trestle is slow in compensation response and low in precision. According to the method, a laser displacement sensor and a gyroscope inertial navigation system are fused to obtain multi-source data, a long short-term memory (LSTM) network is utilized to predict the motion pose of a ship, a prediction result is input into a kinematics model to calculate the position of a joint target, a control strategy is optimized through model prediction control (MPC), and an execution mechanism is driven to compensate in real time. The system adopts an inner and outer ring double-layer structure, the inner ring feeds back heaving information in real time based on a laser sensor, the outer ring provides overall pose compensation based on inertial navigation, and both precision and response speed are considered. According to the method, the stability and foresight of gangway ladder attitude control under the complex sea condition are improved, the compensation effect is remarkably enhanced, and the offshore operation safety is guaranteed.

An emergency evacuation device of a wave-compensated gangway comprises a first horizontal moving frame, a second horizontal moving frame and a fixed truss, one end of the first horizontal moving frame and one end of the second horizontal moving frame can slide up and down along the fixed ladder end support, the other end of the first horizontal moving frame is sleeved with a first sliding block, the first sliding block can slide along the axial direction of the first horizontal moving frame, the other end of the second horizontal moving frame is sleeved with a second sliding block, the second sliding block can slide along the axial direction of the second horizontal moving frame, the first sliding block and the second sliding block are fixed on the wave-compensated gangway, the two ends of the fixed truss are connected with the first horizontal moving frame and the second horizontal moving frame respectively, a movable truss is arranged between the fixed truss and the wave-compensated gangway, and the end of the movable truss is connected with the first horizontal moving frame through a hinge. The design can reliably connect the ladder and the wave-compensated gangway, and ensure that the operating personnel can evacuate from the wave-compensated gangway in the case of wave-compensated gangway failure.

The invention relates to an operation and maintenance ship wave compensation trestle simulation wind field lap joint test method. The lap joint test method comprises the following steps that a boarding ladder is selected to replace a wind field platform for lap joint of the wave compensation trestle; carrying out safety check and pre-debugging before the test; pulling the operation and maintenance ship to a test area, and positioning the ship at a position 10-25 meters away from the simulated wind pile; the trestle is lifted and rotated, the trestle swings to the direction perpendicular to the ship body, and lap joint is prepared; stretching out the trestle until the end part of the trestle is in contact with the boarding ladder, and automatically switching to a lapping state when the trestle is completely lapped; the lap joint condition is checked; and the mother ship is moved towards the bow, the stern, the left chord and the right chord, and the trestle is kept in lap joint with the boarding ladder. The method has the advantages that the trestle lap joint test is carried out at a company wharf, the boarding ladder tool is used for replacing a wind field platform, the operation and maintenance ship trestle lap joint test time and cost are shortened, the lap joint test cost is reduced, and it is guaranteed that follow-up projects can be smoothly delivered by optimizing the trestle lap joint test process.

The invention provides a mobile boarding monitoring system and a safety monitoring method thereof, and relates to the technical field of ship safety management. The system comprises a follow-up monitoring terminal, a boarding channel sensing unit, an edge computing control box, a ship-shore integrated management platform and a mobile terminal APP, and the follow-up monitoring terminal adapts to dynamic displacement of the gangway ladder through a three-axis holder follow-up mechanism. The multi-mode sensor group of the follow-up monitoring terminal and the pressure sensing array of the boarding channel sensing unit realize multi-mode data acquisition, and the edge computing control box completes local AI reasoning and early warning. The monitoring method comprises the whole process of system initialization, personnel identity pre-verification, boarding behavior monitoring, severe working condition enhanced monitoring and data archiving, and data cannot be tampered in combination with block chain evidence storage. According to the invention, monitoring blind areas are eliminated, automatic identity verification and real-time accurate early warning of abnormal behaviors are realized, harsh working conditions are adapted, ship-shore integrated management and control are achieved, and the automation and intelligence level of safety management of boarding operation is improved.

The utility model discloses a kind of ship gangway devices applied to aquaculture ship, it is related to ship and ocean engineering technical field.The ship gangway device applied to aquaculture ship includes deck, support mechanism, gangway and rope, winch and first steering roller are installed with interval in deck.Support mechanism is fixedly installed in the side of deck, and support mechanism includes vertical rod and the second steering roller of the one end of vertical rod.Gangway is installed with rotating mechanism in the end close to ship body structure.The technical scheme of the utility model is by using winch and first steering roller are installed in deck, then support mechanism is additionally provided in the side of deck, so as to install second steering roller on support mechanism, and pull rod is arranged in gangway, rope is wound on winch, and the remaining structure of rope only needs to pass first steering roller and second steering roller, and is connected with pull rod, path is shortened, transmission efficiency is improved and installation and debugging difficulty are reduced.

The application relates to the technical field of gangway auxiliary equipment, and discloses a multifunctional telescopic hydraulic pier, which comprises a waiting bin used for supporting the multifunctional telescopic hydraulic pier, the top of the waiting bin is fixedly connected with a fixed bin, the top of the fixed bin is provided with an equipment main body, the equipment main body comprises: a gangway device which is rotationally connected at the top of the fixed bin, the gangway device is used for assisting users to get off the ship and cleaning water on the surface of the gangway device, so that the surface of the gangway device is prevented from being wet due to splashing of waves when the user gets off the ship, the user is prevented from slipping, the safety protection effect of the device is improved, and the user is facilitated to use; and an auxiliary device which is arranged in the gangway device and is used for compensating sea waves for the gangway during the process that the user gets off the ship, so that the gangway is prevented from shaking due to the surge of sea waves, the device has the advantages of safety protection effect for the user and convenience for the user.

The application relates to a wave compensation system modeling and pose control method based on a Stewart platform, which comprises the following steps: step 1, performing dynamic analysis on a shipborne Stewart platform and obtaining a force balance equation; step 2, calculating the action of a gangway mechanism on the upper platform of the Stewart platform; step 3, expanding the force balance equation based on the action of the gangway mechanism on the upper platform of the Stewart platform, and then establishing a dynamic model of the shipborne Stewart platform considering the gangway; and step 4, designing a Stewart platform pose controller based on a backstepping method to control the pose of the Stewart platform. Compared with the prior art, the application has the advantages of improving the precision of wave compensation and improving the pose control precision.

The utility model relates to the technical field of marine gangway ladders, in particular to a flexible-installation gangway ladder. According to the technical scheme, the gangway ladder comprises gangway ladder supporting connecting frames which are symmetrically distributed left and right, gangway ladder supporting body connecting rods which are evenly distributed up and down are arranged on the gangway ladder supporting connecting frames, and a body installation positioning plate is arranged at the position, close to the lower end, of the rear side of each gangway ladder supporting connecting frame. A mounting combination stabilizing plate is arranged at the position, close to the upper end, of the rear side of the gangway ladder supporting connecting frame, and the gangway ladder is characterized in that the mounting combination stabilizing plate is connected with the gangway ladder supporting connecting frame through a sliding rail assembly, and the sliding rail assembly is embedded in the gangway ladder supporting connecting frame. The utility model has the advantages that the matching requirements of ship bodies with various specifications during installation can be met as required during installation, the matching flexibility during installation is stronger, and the combined supporting strength during matching is ensured by arranging the embedded sliding rail assembly in the installation and adjustment position.

The utility model relates to the technical field of gangway ladders, and discloses a safety protection device for a movable gangway ladder, which comprises a guide rail fixed on the movable gangway ladder, a track is arranged in the guide rail, and a sliding seat is arranged in the track in a sliding manner; a supporting shaft is fixedly arranged on the sliding base and penetrates out of the rail. The supporting shaft is rotationally sleeved with a rotating cylinder which is fixedly connected with a rotating block. A grip is fixedly arranged on the rotating block; a braking assembly is arranged in the track and is in limiting fit with the rotary drum; a brake release limiting assembly is installed on the grip and matched with the supporting shaft in a limiting mode. According to the safety protection device, when a user encounters an emergency situation, the brake release limiting assembly can be loosened, meanwhile, the handle is held tightly, the whole safety protection device can be braked by the brake assembly no matter the user falls forwards or lies backwards, and therefore the user only needs to hold the handle tightly without consuming other energy on the safety protection device; therefore, the user can deal with emergencies more easily.

A telescopic gangway, comprising a telescopable first and second gangway part, such as a telescoping boom and main boom. The first gangway part has a first walkboard, such as a first grating, and the second gangway part has a second walkboard, such as a second grating, that partially overlaps the first walkboard. The gangway further comprises an angled step unit providing a transition from the first walkboard to the second walkboard, such that the first walkboard, the second walkboard and the angled step unit form an assembled walkboard path. Here, the angled step unit has a first coupling unit, such as a comb plate, that is coupled to the first walkboard for allowing a movement in the longitudinal direction. The angled step unit has also a translating coupling unit that is coupled to the second walkboard, preferably for allowing a movement in a direction transverse to the longitudinal direction.

A kind of inclined ladder and measurement method for gangway end space position measurement, inclined ladder body is hinged with wave-compensated gangway end on operating ship by hinged shaft, wave-compensated gangway end side is connected with inclined ladder body by telescopic cylinder, inclination sensor is arranged on inclined ladder body, the position of hinged shaft is measurement point;The lower end of inclined ladder body is installed universal wheel, and the ground pressure size of force sensor between the two is fed back, the vertical rotation shaft of universal wheel is connected with rotation angle sensor for measuring the direction angle of universal wheel;Pulse encoder is installed on the horizontal wheel shaft of universal wheel for measuring the rolling distance of universal wheel;The signal of above-mentioned measuring device is received by data processing unit of measurement control system, data processing unit also accepts gangway deflection angle, data processing unit calculates the spatial position change of measurement point in real time, real-time automatic feedback wave-compensated gangway end position, improve the control effect of wave-compensated gangway, reduce operating operator, improve boarding safety.

The utility model relates to the technical field of self-adaptive gangway ladders, and provides a self-adaptive gangway ladder which can be used for various complex working conditions, is wide in adaptability, easy to operate, safe and reliable, and comprises a gangway ladder main body and a fixed guardrail, the fixed guardrail is provided with a stretching type handrail assembly on one side of the gangway ladder main body, and the stretching type handrail assembly is connected with a fixed handrail in a sliding mode. The two stretching type handrail assemblies are located at the top and the bottom of the gangway ladder body correspondingly.

This utility model provides a hydraulic ship gangway, belonging to the field of marine engineering technology. It includes an installation mechanism for achieving a stable connection between the gangway and the ship's deck; a fixing component, mounted on the installation mechanism, for enhancing the overall structural stability and adjustability of the gangway; a drive mechanism, located on one side of the installation mechanism, for providing power support for the gangway's deployment and retraction; and an adjustment assembly, including a first cylinder and a fixing frame. The first cylinder is mounted on the installation mechanism via the fixing frame and is used to control the lifting angle and tilt adjustment of the gangway's main body. This utility model, through its high-strength installation mechanism, detachable fixing component, dual-cylinder hydraulic drive system, and multi-section nested extension rod structure, improves the automated control capability, adjustment flexibility, and overall structural stability of the ship gangway, effectively solving the technical problems of poor adaptability, inconvenient operation, and low safety associated with traditional ship gangways.

The utility model discloses a get-on and get-off auxiliary device which comprises a supporting base and a parking supporting plate. The driving device is arranged on the supporting seat; one end of the gangway foot plate is hinged to the first end of the parking supporting plate, so that the gangway foot plate can swing between the folding position and the using position, and when the gangway foot plate is located at the using position, the included angle between the upper surface of the gangway foot plate and the upper surface of the parking supporting plate is larger than 180 degrees and smaller than 270 degrees. When the parking device is used, the height of the parking supporting plate can be increased by utilizing the driving device, so that the height of the parking supporting plate is close to that of an entrance floor of a train carriage, and the height difference between the entrance floor and a station climbing platform is reduced. Due to the fact that the height of the parking supporting plate is close to the height of the entrance and exit floor of the train compartment, the wheelchair can be directly pushed to the parking supporting plate and pushed to the ground through the inclined face of the cab apron. The device can conveniently and quickly assist special crowds in getting on and off the train, and in case of emergency, the speed of evacuating from the carriage is increased, and the safety of passengers is ensured.

The invention relates to the technical field of gangway foot plate fatigue tests, in particular to a gangway foot plate fatigue test device which comprises a test platform, a first mounting seat, a second mounting seat, a driving assembly and a sensor, and the first mounting seat is slidably arranged on the test platform in the length direction of the test platform; the second mounting seat is slidably arranged on the test platform along the width direction of the test platform; the cab apron arranged on the first mounting seat can be in sliding contact with the cab apron arranged on the second mounting seat; the driving assembly is arranged on the test platform; and the sensor is arranged on the first mounting seat and is used for detecting the pressure of the fatigue test when the driving assembly drives the two gangway foot plates to stretch and compress so as to carry out the gangway foot plate fatigue test. The second mounting seats can drive the corresponding gangway foot plates to slide in the width direction of the test platform so as to adjust the relative positions of the two gangway foot plates, so that a gangway foot plate positive pressure test and a gangway foot plate bias pressure test can be realized, the operation is simple, and the working efficiency is high.

The invention provides a bearing device for dike emergency rescue, and relates to the technical field of dike emergency rescue. The ship body is provided with a placing area used for bearing emergency materials, a carrying trolley and a gantry crane assembly. The gantry crane assembly is used for hoisting and carrying the emergency materials in the placing area to the carrying trolley; an accommodation ladder which can be folded and stored is arranged on one side of the ship body, and a retracting and releasing assembly used for retracting and releasing the accommodation ladder is arranged on the ship body; after the gangway ladder is lowered, the carrying trolley bidirectionally passes between the ship body and the working surface of the rescue ship; a climbing assembly facilitating climbing of the carrying trolley is arranged on the gangway ladder. Climbing wheels are arranged at the bottom of the carrying trolley; the heavy-load carrying trolley is automatically pulled to go up and down a slope by mechanical power, so that the climbing difficulty is reduced, an effective guarantee is provided for low-efficiency manual carrying with potential safety hazards, the material transfer efficiency is remarkably improved, and the labor intensity is effectively reduced.

The utility model discloses a springboard ladder fixing frame, and relates to the technical field of springboard ladder fixing frames, the springboard ladder fixing frame comprises a left steel pipe and an adjusting assembly, the right side of the middle of the left steel pipe is connected with a fixing pipe, and the adjusting assembly used for opening and closing to serve as a broadside handrail is arranged on the front side of the upper end of the left steel pipe; and the adjusting assembly comprises a left steel sheet, a connecting steel sheet, a steel plate, a handrail steel pipe, a limiting steel sheet and a limiting hole, the outer side of the left steel sheet is connected with the connecting steel sheet through a bolt, and the end of the connecting steel sheet is connected with the steel plate. According to the springboard ladder fixing frame, the fixing stability of a springboard ladder is improved through hooking of the hook used for the springboard ladder body outside the fixing pipe, even if a ship slightly shakes, using is not affected, unhooking is avoided, additional fixing is not needed, and the springboard ladder fixing frame is simple and convenient to use and high in practicability. The connecting steel sheets, the steel plates and the handrail steel pipes can be used as broadside handrails when being opened, and are rotated to be opened when being used, so that the gangplank ladder body is connected with the fixing pipes, and people can walk conveniently.

The embodiment of the invention provides a green new energy PCTC embarkation scheme and a ship. According to the scheme, when the gangway ladder is not used, the gangway ladder is placed on a deck on the top of a ship; when the gangway ladder is used, the gangway ladder is hoisted to the corresponding exit of the corresponding deck and fixed. The embarkation gangway ladder is hidden at the top of the ship when not used at ordinary times. Two embarkation gangway ladders can be selected, so that the mounting difficulty of the gangway ladders is reduced. Structural holes at the boarding opening are reduced, structural holes used for storing the boarding ladder are omitted, and the aesthetic feeling of the ship is improved.

The invention discloses an adjustable inclined ladder for a ship, and relates to the technical field of ship inclined ladders, the adjustable inclined ladder comprises a fixed base, the fixed base is L-shaped, an inclined ladder displacement mechanism is arranged on the top of the left side of the fixed base, an inclined ladder body is arranged on the right side of the inclined ladder displacement mechanism, and the inclined ladder displacement mechanism comprises a displacement frame; according to the adjustable inclined ladder for the ship, a servo motor drives a pushing block to move through a lead screw, the pushing block drives a pushing rod to rotate by 90 degrees, the pushing rod drives a pushing frame to move through the displacement frame, and the pushing frame drives a contact block to move on the surface of a guide rail; meanwhile, the pushing frame drives the inclined ladder body to move to the front of the auxiliary frame, at the moment, the butt joint frame makes contact with the side wall of the auxiliary frame, the induction block A makes contact with the induction block B, the electric telescopic rod A drives the moving rod to move, the moving rod drives the locking rod to be inserted into the auxiliary frame, and at the moment, the inclined ladder body is limited.