49 results about "RO vessels" patented technology

The present utility model relates to the field of roll-on / roll-off apparatuses. Disclosed is an airtight door for a passage apparatus of a roll-on / roll-off ship, the airtight door comprising an inclined ramp, a door body and a horizontal passage, wherein the door body is arranged between the inclined ramp and the horizontal passage; the door body is hinged to the horizontal passage by means of a hinge having an oblong hole; a sealing assembly is provided on the door body; a door frame is provided on the horizontal passage; the door body and the door frame are arranged to fit each other, and the door body and the door frame are both obliquely arranged; a push-pull device is mounted in the horizontal passage; a slider is connected to one end of the push-pull device; and a support connecting rod is hinged to the slider, and the support connecting rod is hinged to the door body. The airtight door for a passage apparatus of a roll-on / roll-off ship provided in the present utility model can make full use of the door's own weight to perform compression sealing, has strong airtightness and a good sealing effect, is safe, stable and reliable, has a simple structure, and is easy to maintain; besides this, the airtight door achieves a design without a door sill raised from the ground, does not hinder the passage of vehicles or the transport of goods, and has strong applicability.

The invention relates to the technical field of intelligent traffic simulation and heavy vehicle cooperative control, and discloses an intelligent cooperative control simulation verification system for a tractor or a trailer, which comprises three modules and four modules: a three-dimensional environment modeling module based on multi-source data fusion and hierarchical modeling and combined with a timing and event double-trigger mechanism to update dynamic obstacles; the cooperative motion control module integrates Bezier trajectory planning, a geodesic theoretical dynamics coupling model and triangular collision detection, and realizes vehicle-towing cooperation and risk early warning. The visual simulation interaction module constructs a multi-window view based on OpenGL / Unity 3D, and simulates light and shadow and friction characteristics in combination with material attributes; the result verification module outputs a conclusion based on the quantitative index and the qualitative report. According to the system, the goodness of fit between a simulation environment and a real scene is remarkably improved, the collision early warning response is less than or equal to 100ms, more than 80% of roll-on-roll-off ship scenes can be covered, the entity test cost is reduced by 60%, and a high-fidelity verification tool is provided for vehicle-tow intelligent cooperation.

The utility model belongs to the technical field of ships, and discloses a binding bowl marking device for an automobile roll-on-roll-off ship, which comprises a base, a piston rod, a marking push plate and a device main body, the base is mainly composed of a protective cover, a sleeve and a round pipe. One end of the piston rod is provided with the scribing push plate, and the upper part of the piston rod is provided with threads; an ink guide through hole is formed in the scribing push plate, a sponge ink fountain is arranged on one side of the scribing push plate, an ink absorption sponge is arranged in the sponge ink fountain, and a sponge head connected with the ink absorption sponge penetrates out of the ink guide through hole to the other side of the scribing push plate; a circular tube hole is formed in the marking push plate and is matched with the circular tube; the device body is mainly composed of a stainless steel pipe, an upper handle, a lower handle and a horizontal ruler. Two ends of the stainless steel tube are respectively fixed with the base and the lower handle; the piston rod sequentially penetrates through the sleeve, the stainless steel pipe and the lower handle to be connected with the upper handle. The device reduces invalid labor, is simple and convenient to operate, prevents the sponge head from falling off, and is high in working efficiency.

The application belongs to the technical field of ships, and discloses a watertight device installation method for a ramp and a roll-on / roll-off ship. The installation method adopts a zoned and stepped measurement operation mode. First, the pre-installation of the movable ramp is completed by means of external hoisting equipment. The installation position and the glue pressing amount of the watertight device in the stable area of the ramp without sinking deformation are detected. Then, the overall debugging of the ramp is completed by using the lifting device of the ship deck. The parameter measurement of the remaining area is carried out. Compared with the traditional one-time overall measurement by using external hoisting equipment, the measurement error caused by the deformation of the movable ramp is avoided. The accuracy of the installation position and the glue pressing amount of the watertight device is ensured. The subsequent repeated rectification and debugging process is avoided. The repeated investment of manpower and material resources is greatly reduced. The time-saving and labor-saving effect is realized. The overall construction period is effectively compressed. The installation and construction efficiency of the watertight device of the movable ramp of the roll-on / roll-off ship is significantly improved.

The utility model discloses a smooth running transition mechanism for a stern door and a fixed ramp of a roll-on-roll-off ship, which comprises a transition mechanism body and a guide mechanism, one end of the transition mechanism body is rotatably connected with the stern door, and the other end of the transition mechanism body is lapped on the fixed ramp when the transition mechanism is used. The guide mechanism is fixed to the end, close to the stern door, of the fixed ramp, an inclined section is arranged on the lower end face of the transition mechanism body, the inclined section inclines downwards relative to the upper end face of the transition mechanism body from the end, close to one side of the fixed ramp, of the lower end face, and a sliding mechanism is arranged on the inclined section. The upper end face of the guide mechanism is an inclined face which inclines downwards relative to the horizontal plane from the end of the side, close to the stern door, of the fixed ramp, and the sliding mechanism slides on the guide mechanism. The smooth running transition mechanism for the stern door and the fixed ramp of the roll-on-roll-off ship can meet the requirements of smooth running, rolling storage and convenient maintenance at the same time.

A methods and systems of fumigating a vessel include delivering fumigant to a cargo area of the vessel. In particular, the vessel may be a roll-on / roll-off vessel. In such a system, an air pressure system is provided for maintaining a selected minimum pressure differential between a selected area of the vessel above the cargo area and the cargo area, such that pressure of the selected area is greater than the cargo area. A control system may maintain the pressure differential.

The invention discloses an intelligent safety monitoring system for entry and exit of a roll-on-roll-off ship, which comprises a central control unit, a cab operation unit and a ship entry point on-site operation unit, and is characterized in that the ship entry point on-site operation unit comprises a system activation module, a system closing module and a warning module; the system activation module and the system closing module are respectively used for activating and closing the ship-shore information transmission system, the cab operation unit comprises a system activation display module, a system closing display module and an activation warning module, and the system activation module is in digital communication connection with the system activation display module through a cable by virtue of the central control unit. The system closing module is in digital communication connection with the system closing display module through the central control unit and a cable, and the activation warning module is in digital communication connection with the warning module through the central control unit and a cable. According to the intelligent safety monitoring system for entering and leaving the port, automatic information transmission is achieved, the communication time is greatly shortened, and the accuracy and timeliness of information transmission are improved.

A portable railing for a movable deck of a roll-on / roll-off ship, the portable railing comprising a post (1), a bottom plate (2), a movable plate (3) and a pin (4), wherein the post (1) is provided with a snap-fit slot (11), the post (1) is inserted into a lashing hole (51) arranged in a movable deck (5), and the snap-fit slot (11) is snap-fitted onto the edge of the lashing hole (51); the bottom plate (2) is fixed to the post (1), the bottom plate (2) is arranged on the movable deck (5), and the bottom plate (2) is provided with a limiting hole (21); the movable plate (3) is movably connected to the post (1), and the movable plate (3) and the post (1) can move relative to each other; and the pin (4) is fixed to the movable plate (3), and the pin (4) is inserted into the limiting hole (21) and the lashing hole (51) in sequence. The railing has a simple structure, is convenient to mount and dismount, does not need to be provided with a conventional protruding railing base structure on the deck, does not affect the passage of vehicles, and can improve the efficiency of loading and unloading.

The application discloses a method for installing a roll-on roll-off ship ramp, and steps are as follows: hoisting the ramp corresponding to a ship body foundation total section, performing three-dimensional positioning and calibration according to a design baseline and a rib position line, and then performing full-position welding to form a rigid installation reference; marking a hinge seat installation reference line, hoisting a ship body end hinge seat, and calibrating coaxiality, and then completing welding and fixation; hoisting the ramp body hinge, adjusting the level, and temporarily locking, hoisting the ramp cover, calibrating fitting precision, measuring the glue pressing amount, marking the relative installation reference, hoisting the movable deck to a temporary work station, avoiding the hoisting path of the upper total section, hoisting the upper total section, performing positioning and calibration, and then welding to form an upper structure, disassembling the ramp and the cover, cleaning the installation position, installing a glue pressing groove and a glue strip, resetting the two, and assembling electrical and outfitting parts. The method optimizes the process and operation time sequence, controls the installation precision in a closed loop, improves construction efficiency, reduces cost and construction risk, and has strong universality.

The present application relates to a kind of load and motion prediction method of floating body inter-springboard transfer vehicle, using quasi-static method, according to certain time step, carry out each time geometric modeling analysis, in combination with the static water force integral solution theory of floating body floating state, construct the equation group with each floating body trim angle and springboard angle as unknown, solve equation group by iterative method, obtain the value of each time floating body relevant posture, load, and then can carry out vehicle transfer safety evaluation, support guarantee scheme design and operation capability boundary determination, better accuracy and convenience;By constructing the proxy model of each floating body trim angle and springboard angle and each floating body buoyancy and center of buoyancy coordinate, the calculation time can be effectively shortened under the premise of ensuring calculation accuracy, and the demand for computing power is reduced.The vehicle loading and unloading transfer operation of roll-on / roll-off ship and roll-on / roll-off boat.

The utility model discloses a roll-on-roll-off ship ballast tank ventilation pipeline penetrating structure which comprises a ballast tank inner bottom plate and a supplement plate, a plurality of longitudinal ribs are arranged on the reverse side of the ballast tank inner bottom plate in parallel at intervals in the width direction of a ship, and the supplement plate is connected with the longitudinal ribs. And the ventilation pipeline penetrates through the supplement plate or the longitudinal bone and / or the longitudinal bone and the supplement plate. The ventilation pipeline penetrating structure of the ballast tank of the roll-on-roll-off ship is simple in connection and small in weight increase, and a ventilation pipe hole of a pipe system is reserved so that the ventilation pipe hole can transversely penetrate through a longitudinal component of the structure.

The embodiment of the invention provides a method and device for determining the vehicle parking position of a roll-on-roll-off ship, and the method comprises the steps: screening out a candidate position set allowing the vehicle to be parked from a target roll-on-roll-off ship according to a preset public constraint condition and a loading direction constraint condition; aiming at each candidate position in the candidate position set, simulating that a current to-be-distributed vehicle in a queuing sequence of to-be-ferried vehicles is parked at the candidate position, and according to the current ship loading state, through the first interpolation function, the second interpolation function and the third interpolation function, calculating the ship stability height after simulation loading; and selecting the position enabling the estimated total load capacity of the target roll-on-roll-off ship to be maximum as the final parking position of the current to-be-distributed vehicle from the candidate positions with the stability height within a preset safety threshold range obtained through calculation. On the premise of guaranteeing the stability and safety of the ship, the loading efficiency and economic benefits can be maximized, and an executable parking scheme is output.

The invention relates to a hoisting tool and a hoisting method of a mobile substation, and the hoisting tool comprises a hoisting beam and a connecting assembly, the connecting assembly comprises two groups of hoisting pin shafts respectively corresponding to the two groups of hoisting points, two groups of hoisting lugs respectively corresponding to the two groups of hoisting points, and a balance rope penetrating through the hoisting points, wherein the two ends of the balance rope are respectively connected to the hoisting pin shafts and the hoisting lugs. The balance rope is pulled up through the lifting beam, the two ends of the balance rope apply the same pulling force to the frame and the transformer at the same time, compression of the transformer to the frame is relieved, deformation of the frame is reduced, overall transfer of the mobile substation from a port to a cargo ship is achieved, disassembly and assembly are not needed, a roll-on-roll-off ship is not needed, and the lifting efficiency is improved. And good hoisting universality is achieved.

The application relates to the technical field of ship testing, and is a kind of roll-on / roll-off ship automobile walking test top gap measuring method based on an adjustable model, key control points for top gap measurement are determined; real vehicle size data of various target vehicle types are acquired, and the key control point coordinates are the intersection points of the highest points of the vehicle roofs and the front and rear end surfaces; an adjustable frame type model is made; the height, the wheelbase and the key control point size of the model are adjusted according to the target vehicle type data, and the simulation of multiple vehicle types is realized; the model is moved to a measuring position for measurement; when the vehicle type is replaced, the above steps are repeated, and the continuous measurement of multiple vehicle types is realized by adjusting the model parameters. The roll-on / roll-off ship automobile walking test top gap measuring method disclosed by the application replaces different vehicle types required to be used at different positions during the test by the manufacturing and use of the adjustable model, simplifies the test operation and improves the test efficiency under the premise of ensuring the reliability of the test data.

An inland river ship roll-on / roll-off ship anti-pitching system, which comprises a lead screw mechanism, a cable support sliding mechanism, a counterweight ball, a locking ball mechanism and an angle adjusting hydraulic cylinder; the lead screw of the lead screw mechanism is in threaded cooperation with the counterweight ball, and the guide rod is in sliding cooperation with the counterweight ball; a plurality of cable support sliding mechanisms are in sliding cooperation with the guide rod; the electromagnet of the locking ball mechanism is in sliding cooperation with the accommodating groove at the bottom of the counterweight ball; the angle adjusting hydraulic cylinder is connected with the lead screw mechanism; the counterweight ball moves linearly under the rotation of the lead screw, the angle adjusting hydraulic cylinder pushes the lead screw to deflect, the lead screw mechanism drives the counterweight ball to move to the required position of the ship bottom plate to change the center of gravity of the ship and prevent the ship from pitching; in the harsh water environment, the ship body floatage is adjusted in cooperation with the ballast tank to avoid the ship body from pitching, the adjustment is rapid, the response time is fast, and the time consumption is short.

The lifting device of the roll-on-roll-off ship radar comprises a telescopic assembly, a driving assembly and a fixing assembly, the telescopic end of the driving assembly is connected with the telescopic assembly, the telescopic assembly is connected with the fixing assembly in a nested and telescopic mode, and the radar is arranged on the telescopic assembly. The fixing assembly and the driving assembly are both arranged on a deck and fixedly connected with the deck. According to the lifting device of the roll-on-roll-off ship radar, the radar can be fixed and integrally lifted and stretched out and drawn back.

The utility model discloses a kind of trolley deck and bearing column assembly structure in ro-ro ship. The trolley deck and bearing column assembly structure include trolley deck (1) and bearing column (3), and the deck architecture (2) of trolley deck is assembled together with bearing column;The trolley deck and bearing column assembly structure further include small knee plate (4), and the small knee plate is fixed on bearing column by welding mode, and the deck architecture of trolley deck is placed on small knee plate, so as to realize the deck architecture of trolley deck and bearing column assembled together;The upper end of the small knee plate is set to wide configuration;The lower end of the small knee plate is set to gradually narrow down extension configuration downwards. The trolley deck and bearing column assembly structure of the utility model are non-rigid, so as to avoid the condition that rigid connection is prone to fatigue tear in welding, so as to guarantee the firm safety of ship structure.

This invention discloses a layout and operation method for loading and unloading automobiles at a roll-on / roll-off (Ro-Ro) terminal. The method utilizes a forward yard exchange platform directly as the loading and unloading platform for Ro-Ro vehicles. Unmanned Ro-Ro straddle carriers carry cars back and forth between the platform and the Ro-Ro vessel. Positioning and handling trolleys position and move cars for loading and unloading within the ship's hold. A rear yard is set up behind the forward yard to store vehicles that have passed export inspection, and vehicles are transported from the rear yard to the forward yard via a connecting corridor. Large engineering machinery yards are set up at the front and / or sides of the forward yard, a large-scale automobile transport loading area is set up between the forward and rear yards, and an export vehicle inspection yard is set up at the rear of the rear yard. This rational layout significantly reduces the land occupation of the automobile yards and improves the efficiency of loading, unloading, and distribution operations, achieving an unmanned operation mode for the Ro-Ro terminal and significantly reducing operating costs.

The application discloses a folding gangway oil cylinder maintenance method, a maintenance channel structure, a roll-on / roll-off ship and a construction method, and relates to the technical field of folding gangway oil cylinder maintenance. The folding gangway oil cylinder maintenance method comprises the following steps: opening an openable cover arranged at a manhole opening on a ship body structure from the inner side of a vehicle cabin; a maintenance personnel enters an operation support structure arranged on the outer side of the ship body and corresponding to the position of the manhole opening through the manhole opening; performing maintenance operation on the folding gangway oil cylinder on the operation support structure; and returning to the vehicle cabin through the manhole opening and closing the openable cover after the maintenance is completed. The safety of the folding gangway oil cylinder maintenance process can be improved, the structure can be simplified, the cost can be reduced and the maintenance convenience can be improved under the premise of guaranteeing the water-tight performance of the ship.

This invention relates to a personalized ventilation system and method for roll-on / roll-off (Ro-Ro) ships. A bottom-supply air system is installed on the lower deck. Under the combined action of a pollutant concentration monitoring module and a central control module, the corresponding area's fan module is activated for ventilation, effectively agitating pollutants at the bottom. A personalized exhaust system is installed at the bottom of the upper deck. The central control module receives information from the pollutant concentration monitoring module in the bottom-supply air system and sends instructions to the corresponding top-floor duct layout module and exhaust module, thereby quickly exhausting pollutants from the corresponding area to the outside of the cabin. This invention utilizes a combination of localized precise air supply and localized precise exhaust to control air quality within the ship's area. Its advantage lies in the fact that it eliminates the need for global air supply; targeted air supply and exhaust in areas with high pollutant concentrations can effectively improve air quality. Furthermore, the inclusion of a central control module allows for real-time adjustments to the air supply and exhaust scheme based on changes in internal concentrations.

The application relates to a roll-on / roll-off ship transportation new energy automobile battery thermal runaway emergency device and a disposal method thereof, wherein a wireless temperature sensor is arranged in a warning system and is electrically connected with the warning system; a warning vehicle battery thermal runaway emergency device is arranged in the warning system; the warning vehicle battery thermal runaway prevention is carried out on a warning automobile; a roll-on / roll-off ship thermal runaway emergency device is arranged in the warning system; at least one component in the roll-on / roll-off ship thermal runaway emergency device is also electrically connected with the warning system; a battery thermal runaway signal is sent; after data transmitted by the wireless temperature sensor is judged, fire disaster judgment is carried out; the warning vehicle battery thermal runaway emergency device and the roll-on / roll-off ship thermal runaway emergency device are controlled to carry out different emergency disposal; meanwhile, according to the emergency disposal method, disposal is carried out, and the technical problems, such as lack of technical schemes, of the prior art which is mainly aimed at land scenes or fixed energy storage battery thermal runaway are solved.

The utility model relates to vehicle guiding device technical field discloses a kind of vehicle roll on / roll off ship vehicle up-down guiding device, comprising: bottom plate and inclined bracing plate, the bottom plate top side is rotatably equipped with inclined bracing plate, the both sides of inclined bracing plate are rotatably equipped with support rod, the support rod bottom end is equipped with support wheel, the bottom plate top is slidably equipped with wheel groove, the support wheel is located in wheel groove, the inside of wheel groove is located at the side of support wheel and is equipped with fixed baffle, the utility model support rod inclination angle becomes big, to make the angle between inclined bracing plate and bottom plate become big, improve the end height of inclined bracing plate, conversely, when push plate is away from end plate, under the pressure action of support rod and support wheel, fixed baffle and wheel groove will be pushed to push plate side and move, until end plate and push plate abut, the end height of inclined bracing plate reduces at this time, the height adjustment of guiding device is realized, and it is applicable to different height ship deck and wharf use.

This invention provides a method and apparatus for berth allocation in a fleet waiting at a port, comprising: acquiring reliable berth information of the port, outbound vessel information of a roll-on / roll-off (Ro-Ro) fleet, and inbound vessel information; calculating the first vessel information and the second vessel information respectively to obtain the first travel time of the first outbound vessel at each stage and the second travel time of the first inbound vessel at each stage; and calculating the first vessel information, the second vessel information, the first travel time, the second travel time, and the berth weight of each berth based on preset constraints to obtain the berth corresponding to the first inbound vessel. This invention detects outbound and inbound vessels in a Ro-Ro fleet and calculates the travel time at each stage, thereby determining the berth for inbound vessels based on the time and reliable berth information. This eliminates the need for dispatch personnel to allocate berths, reducing reliance on dispatch personnel and improving the utilization rate of navigation resources.

This invention provides a method and apparatus for determining vehicle parking positions on a roll-on / roll-off (Ro-Ro) vessel. The method includes: selecting a set of candidate parking positions from the target Ro-Ro vessel based on preset common constraints and loading direction constraints; for each candidate position, simulating parking the currently assigned vehicle in the queuing sequence at that candidate position, and calculating the simulated vessel stability height after loading based on the current vessel loading state using a first interpolation function, a second interpolation function, and a third interpolation function; selecting the position that maximizes the estimated total load capacity of the target Ro-Ro vessel from among the candidate positions whose calculated stability height falls within a preset safety threshold range as the final parking position for the currently assigned vehicle. This invention can maximize loading efficiency and economic benefits while ensuring vessel stability and safety, and output an executable parking scheme.

The invention relates to the technical field of fireproof materials, in particular to a special fireproof thermal insulation material, a preparation method and an induction type fireproof car cover. According to the special fireproof thermal insulation material, a modified nylon material with a main chain containing an aromatic amide bond and a phosphorus-nitrogen synergistic flame-retardant group serves as a matrix, and the matrix is matched with nano ceramic microcrystals of a core-shell structure, mixed fibers and a multifunctional functional additive to finally achieve the thermal insulation and fireproof effects that the material is not molten, flame does not spread and heat does not penetrate. The induction type fireproof car cover integrated based on the materials depends on a multi-dimensional sensor, has the functions of fire prevention, heat insulation and intelligent early warning, is adaptive to the transportation scenes of a car carrier and a roll-on-roll-off ship, and can effectively reduce the safety risk of vehicle transportation.

According to the oil cylinder arrangement structure of the roll-on-roll-off ship movable ramp, the movable ramp is located above a freeboard deck, a liquid tank and an air duct are arranged between the freeboard deck and the movable ramp, and the oil cylinder arrangement structure comprises an oil cylinder arrangement structure space defined by peripheral side structure longitudinal walls, the movable ramp and the freeboard deck. The air ducts and the liquid tanks are sequentially arranged on the two sides of the oil cylinder arrangement structure space from bottom to top, the structure longitudinal wall and the wall of each liquid tank are arranged in a spaced mode, and the oil cylinders are located in the oil cylinder arrangement structure space and connected with the freeboard deck through oil cylinder bases fixed to the freeboard deck. According to the oil cylinder arrangement structure of the roll-on-roll-off ship movable ramp, the requirements for liquid tank and air duct arrangement are met, and the requirements for oil cylinder supporting strength and oil cylinder maintenance are met.

The present application relates to the technical field of ship roll-on / roll-off transport equipment, in particular to a lightweight modular jacking device for a car roll-on / roll-off ship and a control method thereof, which comprises at least two independent jacking modules and a central controller. The traditional integrated heavy-load steel structure is split into several independent jacking modules with the same structure, and each independent jacking module is connected to the central controller through an electrical line without mechanical coupling, so that the modular combination of the jacking device is realized. The operator can flexibly increase or decrease the number of modules and adjust the support points according to the deck size, load distribution and layer height requirements, so that the device can quickly adapt to different ship types and working conditions. At the same time, the guide cavity in the hollow column serves as the installation cavity and movement guide structure of the driving assembly, and the traditional external guide rail or scissors arm is cancelled, thereby reducing the overall weight of a single device and significantly improving the operation efficiency and reconstruction flexibility in the cabin.

The utility model discloses a roll-on-roll-off ship ramp antiskid layer structure, which belongs to the technical field of ramp antiskid structures, and comprises a roll-on-roll-off ship and a springboard arranged at the tail of the roll-on-roll-off ship, an antiskid structure is arranged on the upper surface of the springboard, and the antiskid structure comprises a strip-shaped diversion trench arranged on the upper surface of the springboard along the length direction of the springboard; the axis in the length direction of the flow guide groove and the axis in the length direction of the springboard are located on the same straight line, a plurality of flow intercepting grooves are formed in the upper surface of the springboard, and all the flow intercepting grooves are arranged in a mirror image mode relative to the axis in the length direction of the flow guide groove. The end, close to the flow guide groove, of each flow intercepting groove is gradually and downwards arranged in an inclined mode on the horizontal plane and communicated with the flow guide groove, a plurality of anti-skid protruding blocks are further fixed to the upper surface of the springboard, and the anti-skid protruding blocks are arranged on the two sides of the flow guide groove in the width direction respectively. The problems that an existing anti-skid structure for the ramp of the roll-on-roll-off ship has potential safety hazards and is unstable in anti-skid effect in rainy days can be effectively solved.

The invention discloses a living cabin and a building method of an automobile roll-on-roll-off ship comprising the same, and the method comprises the steps: firstly, carrying out the interior building of a living cabin before a dock stage: arranging reserved areas on the two sides of each block of the living cabin in the length direction of a ship body, firstly, carrying out construction outside the reserved areas, and meanwhile, arranging a temporary support in the living cabin, and in-built construction of the reserved area is completed in the dock waiting stage. According to the construction method, most internal installation procedures are moved forward, the dock site can be saved, the construction period is shortened, the efficiency is improved, the reserved area is arranged to avoid large deformation and much rework of installation parts when adjacent blocks are folded and welded, the temporary support can prevent excessive structural deformation when the blocks are hoisted and assembled, firework correction at the dock stage is reduced, and the construction cost is reduced. The efficiency is further improved; and the precision is guaranteed.

This application relates to a ramp top riser deck structure for ro-ro ships, belonging to the field of ro-ro ship technology and equipment. It includes a bottom deck, on which an upper deck is disposed, forming a parking passage between the bottom and upper decks. A parking plate is disposed inside the parking passage, and a ratchet assembly is provided at the bottom end of the parking plate and the bottom deck. When the ratchet assembly is engaged, it restricts the downward rotation of the parking plate. A lifting assembly is disposed below the upper deck, connected to the parking plate, and drives the parking plate to rotate upward. This application has the advantage of reducing operating costs by eliminating the need for continuous start-up using hydraulic rods and long-term operation of forward and reverse motors.