36 results about "Slipway" patented technology

The invention relates to a slideway folding and unfolding device for a non-bow towing point underwater towed body, and the slideway folding and unfolding device comprises a track assembly which is used for sliding, locking and positioning a horizontal pushing trolley and supporting an inclined slideway assembly; the horizontal pushing trolley is used for translational motion of the inclined slide way assembly and the underwater towed body / UUV; the inclined slideway assembly is used for providing a sliding channel and a storage space for the underwater towed body / UUV and sliding and dragging the underwater towed body / UUV to a storage position in a cable dragging mode; the inclined slide way assembly comprises a slide way which is arranged in an inclined mode, and a guide cover assembly is installed at the tail end of the inclined slide way assembly and used for forced guiding of a non-bow towing point underwater towed body / UUV. The problem that a non-bow towing point underwater towed body / UUV is difficult to recycle and enter a slide way is solved.

A method for launching, recovering, or inspecting a floating offshore wind turbine structure (1), which includes a wind turbine (2) and a support structure (3), after the structure has been assembled, is transported to a platform (16) at the top of an inclined slipway (23) extending from above the water surface (4) to a position below the water surface (4). The structure (1) is launched by lowering it from the platform (16) along the slipway (23) into the water until the assembled floating offshore wind turbine (1) is lifted away from the slipway (23) by the buoyancy of the floating support structure (3).

The invention discloses a large block assembling device and method, and the method comprises the following steps: dividing a whole ship into a plurality of segments, determining a block assembling region to support the parallel assembling of multiple ships according to the segments and blocks, and assembling the segments into blocks in the block assembling region; determining a slipway area according to the block assembly area; the slope of the slipway is determined according to the requirements of the carried block, the model of the steel pier and the jacking height of the air bag in the launching pier dismantling stage, so that the module vehicle can transport the block in all areas of the slipway; the cabin area section and the bow ring section are firstly placed on a slipway to be carried by using the block assembling device; acquiring total group data of a block completed based on the fact that the module vehicle and the gantry crane cooperatively carry other blocks; and on the basis of the acquired data, positioning and carrying other blocks by using the module vehicle on the slipway so as to complete block assembly. The problem that in the ship building process, efficiency is low is solved.

The invention discloses an inclined slipway ship launching tide height monitoring method and tool, and the method comprises the following steps: S1, installing a vertical guide sleeve on the outer side of a dock wall, keeping a distance between the guide sleeve and the dock wall, and enabling the top end of the guide sleeve to extend to a position above the wall surface of a slipway; s2, a measuring rod with scales is inserted into the guide sleeve, so that the measuring rod can move in the axial direction of the guide sleeve along with the change of the water level, and a floating ball is connected to the bottom end of the measuring rod, so that the top end of the measuring rod always extends out of the upper edge of the guide sleeve; and S3, determining the current tide level height by reading the scale value of the measuring rod corresponding to the upper edge of the guide sleeve. The measuring rod main body is arranged in the guide sleeve, so that corrosion and fouling are effectively prevented; the reading position is transferred to the position above the slipway from the quay wall water gauge and is guided to the upper edge of the sleeve, so that the observation operation is closer to a personnel operation area, and the reading risk caused by unclear vision is remarkably reduced.

The invention relates to the technical field of ship simulation test equipment, and particularly discloses a test device for ship berthing, which comprises a rotary support assembly, and the bottom end of the rotary support assembly is fixedly arranged at the bottom of an ocean engineering test pool. A wharf model or a slipway model used for simulating a berthing target is fixedly arranged at the top end of the rotary supporting assembly, and the rotary supporting assembly is configured to be capable of driving the wharf model or the slipway model to rotate so as to adjust the angle relative to the wave direction. Through the arrangement, the wharf model or the slipway model can be rotated to any specified angle position as required by rotating the supporting assembly, the ship berthing test research requirements under different wave direction working conditions can be effectively met in an ocean engineering test pool, operation is easy and convenient, the application range is wide, and practicability is high. And multi-direction waves do not need to be generated by depending on wave making equipment, so that the overall cost of the ship berthing test is remarkably reduced, and the test efficiency and flexibility are improved.

Method for controlling a motor vehicle (3) which has a trailer hitch (5) for attaching a boat trailer (6) and at least one rear parking sensor (7) and is designed to automatically activate the rear parking sensor (7) when the motor vehicle (3) is reversing in a normal operating mode of the motor vehicle (3), wherein in the method - a current slipway situation is detected in which the boat trailer (6) attached to the trailer hitch (5) is to be driven into the water (2) by reversing the motor vehicle (3), characterized in that - based on vehicle data originating from sensors of the motor vehicle (3) and indicating the current state of the motor vehicle (3), the slipway situation is automatically detected when a boat trailer (6) is attached and an electrical connection between the motor vehicle (3) and the boat trailer (6) has been disconnected within a specified past time period or in the current vicinity of the motor vehicle (3), and a detected tilt angle of the motor vehicle (3) and / or the boat trailer (6) is consistent with a position of the motor vehicle (3) and / or the boat trailer (6) on a slipway (1), and - upon detection of a current slip situation, all rear parking sensors (7) of the motor vehicle (3) or outputs of warning signals on objects (6) detected by means of the rear parking sensors (7) are automatically deactivated for the slip situation according to a predefined slip operating mode different from normal operation.

A temporary and removable floating boat ramp for launching trailered watercraft. The invention relates to the design and construction of a temporary and removable floating boat ramp. It consists of two parts: the floating part, which is in the water and on the beach, made of HDPE tubing (3), floats (14), and stainless steel grating (1) with stops (5) and (6); and the land-based part, which is made of HDPE tubing (3) and wooden grating (2), and can be extended to the top of the beach (13). The device according to the invention is intended for launching boats less than 6 meters in length, allowing optimal launching for anyone wishing to launch their watercraft.The invention will allow the user to reverse by driving over it with their trailer (15) (12) until they reach the water level and be able to launch or retrieve their boat (11). Abbreviated figure: fig. 5.

The invention belongs to a ship slideway launching structure in the technical field of ship construction. A plurality of launching cross beams (2) supported on a slide way (5) are arranged at the bottom of the ship body (1), a plurality of air bags (3) are arranged between the side face of each side of the ship body (1) and the launching cross beams (2), the air bags (3) are of a long-strip structure, a fixing rope (4) bypasses the air bags (3) and is connected with the launching cross beams (2) and the side face of the ship body (1), and the air bags (3) on each side of the ship body (1) are arranged to be of a horizontally-arranged structure, or the air bags (3) on each side of the ship body (1) are arranged to be of a horizontally-arranged structure. The air bags (3) on each side of the ship body (1) are arranged to be of a triangular structure. The ship slideway launching structure is simple in structure, can effectively solve the problem that the ship cannot launch due to low water level in the dry season of Yangtze River, can still launch reliably when the water level is insufficient in a shipyard, improves the launching efficiency, and reduces the production cost.

This invention provides a design method for the construction of a split-type vertical non-slipway jacket structure in shallow water, comprising: generating construction scheme data for a split-type vertical non-slipway jacket structure in shallow water; designing the segmented assembly piers for the upper jacket and the overall jacket for ship transport, and outputting pier design data; designing the foundation modification scheme for the construction area of ​​the split-type vertical non-slipway jacket structure in shallow water, and generating foundation modification scheme data; designing the construction scheme for the lower jacket, the scheme for building the upper jacket based on the lower jacket, and the hoisting and closure scheme for the upper and lower jackets, and generating lower jacket construction scheme data, upper jacket construction scheme data, and hoisting and closure scheme data. This invention divides the jacket structure into upper and lower jackets, completing vertical construction simultaneously in the non-slipway area followed by assembly. This results in a short construction period, fast ship loading speed, no need for slipways, and minimal space occupation; vertical installation can be carried out directly at sea without the need for offshore righting operations.

The technical scheme belongs to the technical field of ship production, and particularly relates to a reverse support assembly which is used for being additionally arranged at a neutral position of two sections of section bars when a slipway is closed and after the section bars and slab joints are leveled by adopting a non-code tool so as to prevent slab wall difference caused by stress deformation during slab joint welding, and the reverse support assembly comprises a clamping mechanism, the fixing device is used for being installed on flat-bulb steel or a T-shaped profile. The connecting rod is mounted on the clamping mechanism; one end of the adjusting mechanism is installed on the connecting rod, the other end of the adjusting mechanism is used for being connected with a ship plate, and the ship plate is positioned through the adjusting mechanism; the adjusting mechanism comprises a connecting piece which is provided with a mounting hole, and the connecting piece is arranged on the connecting rod in a sleeving mode through the mounting hole; one end of the lifting assembly is connected with the connecting piece; the stacking plate is connected with the other end of the lifting assembly, and the stacking plate is used for being welded to or abutting against a ship plate; the distance between the connecting piece and the stacking plate is adjusted through the lifting assembly, the ship plate is maintained at the set position, use is convenient, and the problem that the ship plate is dislocated is solved.

The invention discloses a stern shaft section pre-outfitting method, which belongs to the technical field of ship construction, and comprises the following steps: S1, 101, pre-installing a section stern tube bracket, S2, 102, pre-installing a section rudder system component, and S3, carrying, folding and monitoring. The stern tube bracket and the rudder system component are preassembled on the sections, and high-precision measuring and monitoring means are adopted in the carrying and folding process, so that the influence of carrying process change and work type cross operation on the component positioning precision is greatly reduced, and compared with a traditional slipway mounting mode, the positioning precision is remarkably improved, and the mounting period is greatly shortened.

A splicing and inserting type elastic supporting module is provided with a rectangular iron frame, the two ends and the top of the iron frame are each of an open structure, a combined wood module is fixed into the iron frame, a V-shaped groove sunken downwards is formed in the center of the combined wood module, flat iron is pressed on the edges of the two sides of the top of the combined wood module, and vertical bolts penetrate through the flat iron from top to bottom. And the combined wood modules are fixed. The combined wood module is formed by sequentially laminating a plurality of layers of sub-wood blocks from bottom to top, the lowermost layer is a common wood block, and the rest are spring wood blocks. The side, close to the V-shaped groove, of the spring wood block is obliquely arranged. Connecting flat iron and elastic buckles are symmetrically arranged on the two sides of the iron frame, a sliding way is arranged on the slipway, and the head supporting module is fixed to the bow fulcrum area of the sliding way. The device can be adjusted according to the length and the weight of the ship, can be universally used by multiple ships, solves the problems that the launching head fulcrum stress is large, and the fishing and manufacturing cost is high, reduces the construction cost of the real ship, and improves the launching safety of the ship.

The utility model provides a heating blanking equipment of injection molding machine switching mould core, including equipment platform and heating blanking device, the heating blanking device includes blanking mechanism, heating platform, material box and slipway module, the equipment platform is provided with slipway module, slipway module includes linear guide rail and guide rail motor, and the linear guide rail is provided with the material box. A heating platform is assembled on the linear guide rail; a guide rail motor drives the heating platform to reciprocate along the linear guide rail; the heating platform comprises a heating groove, a heater, a lifting platform and a lifting cylinder; the utility model aims to provide a heating and blanking device for switching a mold core of an injection molding machine, which is suitable for switching the mold core of the injection molding machine and is matched with the injection molding machine to periodically inject a workpiece, and an air knife is matched with automatic blanking to prevent the workpiece from being torn during manual blanking. And the mold core is preheated during waiting for mold core switching, so that the working efficiency can be improved.

This invention discloses a method for the overall hoisting of folding hatch covers on polar multipurpose vessels, comprising the following steps: a) hoisting two hatch covers separately onto transport brackets; b) transporting the two hatch covers to the assembly site using a flatbed truck; c) adjusting the positioning accuracy of the hatch covers; d) installing the connecting pins between the hatch covers; e) installing anti-back-folding T-shaped fixtures; f) selecting a 400T gantry crane for hoisting; h) determining the lifting point positions of the hatch covers; i) determining the type of lifting points; j) installing hoisting shackles and wire ropes; k) lifting the entire hatch cover onto the slipway and merging it. This invention's method for the overall hoisting of folding hatch covers on polar multipurpose vessels solves the problem of multiple hoistings of a single folding hatch cover and the safety issue of reverse folding during hoisting of folding hatch covers, improving hoisting efficiency, shortening the construction period, and significantly enhancing competitiveness.

The invention discloses a novel method for assembling and transferring ship sections. The novel method comprises the following steps that a, a ship engine room and a stern area are divided into a plurality of sections; b, according to a ship structure assembling mode, the 10F block is directly assembled on a folding slipway, and the other blocks are transferred after being assembled; c, designing a transportation tray A, a transportation tray B and a transportation tray C; d, sectionally transferring the middle bottom of the cabin area to an outfitting and assembling site, and assembling on a transportation tray A and a transportation tray B; e, basin fitting-out is started after the middle bottom of the cabin area is assembled in a segmented mode; f, after the bottom sections in the cabin area are assembled into blocks, the two blocks are subjected to sand blasting and paint treatment; g, after the platform block in the cabin area is completed, sand blasting and paint treatment are conducted; h, after the deck block in the stern area is completed, sand blasting and paint treatment are conducted; i, after coating is completed, the block is transferred to a folding slipway for carrying operation; by means of the novel method, efficient and low-cost batch construction is achieved.

The embodiment of the invention provides a permanent fixing method for a boarding tower. The method comprises the steps that the installation position of a boarding tower is determined according to the horizontal slipway ship series connection mode; the tower leg suspension position of the boarding tower is determined according to the installation position, the kinetic energy channel corresponding to the tower leg suspension position is reinforced, and a bottom plate is correspondingly laid; and the boarding tower is hoisted and solidified. According to the permanent fixing method for the boarding tower, repeated disassembly and assembly of the boarding tower are reduced, the hoisting frequency of a crane is reduced, crane resources are saved, and the construction cost is reduced.

The invention discloses a construction method of a large water jet propulsion flow channel of a ship, belongs to the technical field of ship production, and solves the technical problem of poor production precision of an existing water jet propulsion flow channel construction method. The method comprises the following steps that 1, construction preparation and benchmark establishment are conducted, specifically, the construction preparation comprises drawing digestion, a construction process is compiled according to a drawing, and necessary tools are designed; the reference establishment specifically comprises the following steps: after ship body sections are closed, a ship body base line, a ship body center line and a shaft system theoretical center line are clearly calibrated again in a mounting area to serve as absolute references of all subsequent mounting work; 2, determining the technological requirements for manufacturing important parts and related structures of the runner; 3, the runner is manufactured in a segmented mode, and all the segments of the runner are spliced according to the technical requirements of the technology; and step 4, folding and positioning the slipway, rechecking the axis of the runner, and adjusting to meet the process requirements. The ultrahigh coaxiality of the propelling channel is ensured, and meanwhile, the extreme fairness and the structural integrity of the flow channel are ensured.

This invention proposes a method for the phased installation of unloading plates for bulk carriers, relating to the field of bulk carrier technology, including the following steps: (1) Initial stage: setting the position for the division of sections, dividing the trough-shaped bulkhead sections and unloading plates into bottom sections; (2) Sectioning stage: pre-assembling the trough-shaped bulkhead sections of the bottom section and the trough-shaped bulkhead sections of the trough-shaped bulkhead sections; uniformly pressing the pre-assembled plates into a whole, and then assembling them as a whole; after pressing and assembly, separating the trough-shaped bulkhead sections of the bottom section and the trough-shaped bulkhead sections of the trough-shaped bulkhead sections; installing the trough-shaped bulkhead sections of the bottom section onto the bottom pier on a horizontal jig, and then installing the unloading plates, thereby completing the installation of the components in the bottom pier; hoisting the components in the bottom pier onto the inner bottom plate for installation, thereby completing the installation of the bottom section; (3) Slipway stage: completing the overall positioning and welding of the bottom section and the trough-shaped bulkhead sections on the slipway.

The utility model discloses a berth bow and stern folding hanging ladder, which relates to the technical field of hanging ladders and comprises a group of positioning components, the outer wall of the bottom end of one positioning component is fixedly connected with a first hanging ladder handrail, and the bottom end in the first hanging ladder handrail is slidably connected with a second hanging ladder handrail. The bottom end of one side, far away from one side of the first hanging ladder handrail, of one positioning assembly is fixedly connected with a third hanging ladder handrail, and through close fit among the limiting sliding blocks, the limiting grooves and the limiting springs, part of the hanging ladder assemblies are independently opened or stored in the ship building or maintaining process, so that the hanging ladder assemblies are not prone to falling off, and the ship building or maintaining efficiency is improved. And the positioning assembly, the lifting rail, the limiting rail, the limiting sliding block, the limiting groove, the limiting spring and other structures work cooperatively, so that the accuracy and reliability of operation are ensured, and therefore, the device can provide a stable and reliable working platform no matter the hanging ladder is partially or completely unfolded.

The invention relates to the technical field of ships, in particular to a cross beam dismantling device and a cross beam dismantling method. The embodiment of the invention provides a cross beam dismounting device which is used for dismounting and transferring a cross beam on a slipway trolley from a ship pier swinging state. The cross beam dismantling device is easy to manufacture and convenient to install, and compared with the prior art that the cross beam is slowly transferred out through a tension block, the working efficiency is greatly improved, and the safety is also improved. In the embodiment of the invention, the cross beam dismantling device comprises two cross beam dismantling mechanisms, and the two cross beam dismantling mechanisms are arranged at the two ends of the cross beam respectively. The cross beam dismounting mechanism comprises a moving assembly, a supporting assembly, a lifting piece and a bearing table. The supporting assembly is installed on the moving assembly, the lifting part is installed on the supporting assembly in a lifting mode, and the bearing table is arranged on the side, away from the supporting assembly, of the lifting part, connected with the driving end of the lifting part and used for bearing the cross beam.

The present invention relates to a universal trailer having a support bracket which naturally guides the V-shaped bottom surface and keel of a boat toward the center of the trailer as the boat moves forward when the boat, which is located on seawater or fresh water and is maintained horizontally according to the water level and buoyancy, is being loaded onto a trailer that is tilted along a slope of a slipway and partially submerged. The universal trailer according to the present invention comprises: two main frames diverging from a front towing portion in accordance with the shape of the boat; a plurality of crossbars that connect the main frames and are spaced apart from each other; and wheels that are provided on each of the main frames, wherein some or all of the crossbars are equipped with V-shaped support brackets that conform to the shape of the bottom of the boat.

The invention discloses a ship block construction method using a construction-inspection auxiliary line, and belongs to the field of ship manufacturing. The method comprises the following steps: setting a construction-inspection auxiliary surface in a ship block overall design system, and generating a construction-inspection auxiliary line by intersecting the surface with a block internal grillage; in the machining, manufacturing and scribing process of the segmented internal grillages, the lines are scribed on the segmented internal grillages; and when the segmented internal grillages are assembled on the segmented outer plates, auxiliary positioning is carried out by combining the construction-inspection auxiliary lines with the structure installation position lines and the connection relation among other components, and the installation precision of the segmented internal grillages is inspected by using the construction-inspection auxiliary lines. By the adoption of the method, under the building mode that the outer plate serves as the tire, the building precision of the internal structure can be well guaranteed, the building precision of linear complex segments when the outer plate serves as the tire is improved, the edge margin of the segments is eliminated, the edge trimming and cutting operation amount between the segments when a slipway or a dock is closed is reduced, the shipbuilding period is shortened, and the shipbuilding cost is reduced.

The invention relates to an efficient sludge treatment system based on an amphibious dredger and a construction method, and relates to the technical field of lake sludge treatment, the system comprises a low-disturbance reamer module, a slipway module, a pipeline conveying module, an agent mixing module, a pipe bag filling module and a consolidation anti-seepage storage yard module, S1, construction preparation; s2, adding medicaments for preparation; s3, excavation is conducted in a striping mode; s4, pipeline installation and slurry conveying; s5, sludge pumping and discharging; s6, dehydrating and curing on site; s7, earth covering and backfilling are conducted on site, a novel amphibious dredger is adopted to replace traditional equipment, a unique cutter system of the novel amphibious dredger can treat stone blocks and sludge at a time, and the stone blocks and the sludge are directly conveyed to a sludge filling area after being minced; the high-toughness polypropylene geotextile pipe bag is filled with sludge, and an adaptive agent is added into a pipeline to realize full mixing, so that the sludge consolidation efficiency is remarkably improved; the geotextile tube bags and the chemical adding device are arranged on the bank side, a layered stacking and consolidation mode is adopted, and finally, soil covering and plant growing are conducted to form the ecological bank slope, so that the construction cost is reduced, and the landscape effect is improved.

The utility model relates to a slipway and a shelf capable of being movably adjusted, the slipway comprises a slipway body, a movable locking structure is arranged at the front end and / or the rear end of the slipway body, the movable locking structure comprises a groove and a locking block, and the groove and the locking block are arranged on the upper surface of the front end and / or the rear end of the slipway body. The locking block can be horizontally and rotatably mounted in the groove and has a locking state of being in extrusion connection with the front sliding rail or the rear sliding rail and an unlocking state of being separated from the front sliding rail or the rear sliding rail; the locking block is provided with a first clamping part, a second clamping part and a third clamping part are arranged in the groove, and the first clamping part is elastically clamped with the second clamping part or the third clamping part when the locking block is in a locking state or an unlocking state. The slideway can be moved and adjusted according to the conveying requirements of different commodities, the automatic tallying performance of the shelf is guaranteed, use is flexible, operation is convenient and fast, meanwhile, the stability, reliability and operation performance of the locking block are improved, and automatic assembly of the slideway is facilitated.

This application relates to the field of shipbuilding technology, and more particularly to an extended jetty and a method for launching a ship. The extended jetty includes a base, a rolling shaft assembly, jetty fixtures, and a lifting assembly. The base is arranged on a stepped surface of the slipway along the extension direction of the fixed jetty. The rolling shaft assembly is detachably mounted on top of the base, supporting the jetty fixtures and engaging with them in a rolling manner. The lifting assembly is located on the outer side of the base. The base and the jetty fixtures are connected by diagonal braces. When the connection between the rolling shaft assembly and the base is released, and the connection between the base and the jetty fixtures is also released, the lifting assembly can lift the rolling shaft assembly, so that the bottom surface of the jetty fixtures is higher than the top surface of the fixed jetty. The solution provided by this application, through the cooperation of the rolling shaft assembly and the lifting assembly, allows the jetty fixtures to be safely and conveniently lifted and moved out of the space below the ship after the connection is released, solving the problem of the difficulty in dismantling and transporting traditional temporary jetties.

The invention relates to the technical field of hull keel deflection monitoring, and discloses a hull keel deflection monitoring device. The hull keel deflection monitoring device comprises a base, an adjusting assembly and a detecting assembly. The base is connected to a slipway; the adjusting assembly comprises a sleeve, a connecting rod, a mounting plate, a gradienter and a ruler, the connecting rod is in threaded connection with the sleeve, the bottom of the sleeve is fixedly connected to the base, the bottom of the mounting plate is connected to the top of the sleeve, the gradienter is connected to the top of the mounting plate, the bottom of the ruler is connected to the top of the connecting rod, and the ruler is provided with scales arranged in the extending direction of the ruler; the detection assembly comprises an adsorption block and a pointer, the adsorption block is used for being detachably connected to a hull keel, the pointer is fixedly connected to the adsorption block, and the pointer and the ruler are coaxially arranged; the base is adjusted to the level of the gradienter, the connecting rod is rotated until the bottom of the ruler is flush with a mark post set value of the ship body, and the indicating value pointed to the ruler by the end, away from the adsorption block, of the pointer is read.

The invention relates to a construction method for newly adding and transforming a self-flowing device to a ship, and belongs to the technical field of ships. The method comprises the steps that the installation position of the self-flowing device on a ship body is determined according to the function requirement of the self-flowing device and the structural strength of the ship body; defining a to-be-cut area on the ship body by taking the mounting position as a center; separating the to-be-cut area from the ship body to form ship body sections; in a workshop meeting the construction environment, manufacturing and mounting of the self-flowing device are completed on the outer surface of the ship body section; and the ship body sections integrated with the self-flowing device are subjected to butt welding again, and it is ensured that the ship body structure recovers to the original design load standard. By means of a modular construction system of cutting, segmented transformation and reinstallation, the problem that traditional slipway construction cannot meet the high construction condition requirement and the high-precision forming requirement of the self-flowing device is successfully solved, the construction environment, the construction space and the posture of manufacturing of the self-flowing device can be remarkably improved, the construction difficulty is reduced, and the construction efficiency is improved. The profile precision of the self-flowing device is improved, and the boarding applicability of the self-flowing device is improved.

The invention relates to the technical field of ships, and discloses a deck segmented structure and a construction method of the deck segmented structure, the deck segmented structure comprises two broadside outer walls, the two broadside outer walls are arranged at an interval in the left-right direction, and a connecting section extending towards the other broadside outer wall is arranged in the middle of one side, close to the interval, of each broadside outer wall; the multiple supporting structures are detachably installed on a broadside outer wall. One end of the first plate is connected with the upper part of one broadside outer wall, and the other end of the first plate is connected with the upper part of the other broadside outer wall; the second plate is horizontally arranged, one end is connected with the connecting section of one broadside outer wall, and the other end is connected with the connecting section of the other broadside outer wall; the side outer wall, the first plate and the second plate are used for forming two layers of decks of the ship body. The method solves the problems that in the prior art, when the number of layers of a main hull deck is large, a plurality of deck sections are repeatedly lifted, positioned, adjusted and welded, so that the folding period of a slipway is prolonged, and the production efficiency of a ship is reduced.

The invention relates to an air bag launching synchronous unhooking method, which comprises the following steps of: firstly, transporting a ship to be launched to a slipway, arranging two rows of air bags at the bottom end of the ship, fixing the ship by utilizing the matching of two unhooking devices and a winch, and sequentially inflating the air bags, and then the two detachers are unhooked through cooperation of one main forklift and two auxiliary forklifts, so that the ship slides down along the ramp of the slipway under the action of the gravity of the ship, and launching of the ship is achieved. According to the synchronous unhooking method, the double rows of air bags are arranged, so that the foundation bearing problem of the slipway can be effectively relieved; the unhooking device is added for unhooking, so that the risk of bouncing and hurting people when the steel wire rope is broken can be timely dealt with, and a tire is arranged below the unhooking device to avoid the risks of damaging the ground and bouncing and hurting people when the unhooking device falls.