484results about "Dry-docking" patented technology

The invention belongs to the technical field of ships, and particularly relates to a launching barge tower broadside berthing structure which comprises a launching barge body. The launching barge body comprises a main body buoyancy tank in the middle and launching barge towers arranged at four corners of the main body buoyancy tank; the launching barge body can be berthed in the dock platform; and the berthing assembly is arranged on the launching barge tower building, the berthing assembly is arranged on the side, close to the dock platform, of the launching barge tower building, and the berthing assembly can fill and level up a protruding main body structure of the launching barge tower building, so that the broadside structure is flat and can safely berth the dock platform. By arranging the berthing assembly, the bottom of the protruding main body structure is filled and leveled up, so that the broadside structure is flat and can safely berth the dock platform, the broadside structure form of a launching barge tower building is changed, the safety requirement of the berthing dock platform is met, the functions and purposes of the launching barge berthing dock platform are improved, and traditional unsafe operation is eradicated.

A floating construct is formed of a plurality of floats. The floats are constructed of rigid plastic with of a central tube positioned vertically. The floats are hollow and watertight, with the hollow and watertight structure of the floats providing flotation. The floats are connected directly or indirectly to other floats to form the floating construct. The use of multiple floats, which have a relatively small footprint, sized and positioned according to the loading of the floating construct, allows balancing of the overall construct that the floats support.

The invention belongs to the technical field of underwater operation, and relates to a maintenance device for a lower hinged support of a dock gate and a construction method thereof. The device comprises a waterproof cover box, a diving barge, a hoisting system and a drainage assembly, the waterproof cover box comprises a cover body and a channel well, openings are formed in the bottom and the top of the cover body, the bottom face of the cover body is in sealed compression joint with the surrounding structure of the lower hinged support to be maintained, the channel well is connected to the opening in the top of the cover body in a sealed mode, and the top face of the channel well is higher than the water surface. The diving barge is provided with a plurality of hydraulic supporting legs capable of ascending and descending so that the diving barge can be supported in the horizontal door pit. The hoisting system comprises a tower frame and an arm frame which are arranged on the diving barge, and one end of the arm frame is located above the cover body and connected with the cover body in a pressing mode; the drainage assembly comprises a submersible pump and a drainage pipe, the submersible pump is arranged in the cover body, one end of the drainage pipe is connected with the submersible pump, and the other end is led to the water surface through the channel well. According to the method, a stable dry operation environment can be rapidly constructed at the dock gate lower hinged support to be maintained, rapid maintenance is achieved, pollution to a sea area is avoided, and operation safety is improved.

The invention discloses a marine mooring seat positioning device and a positioning and mounting method, the marine mooring seat positioning device is used for assisting in mounting a mooring seat, the mounting precision of the mooring seat is effectively improved, and rapid mounting of the mooring seat is achieved. Meanwhile, the mooring seat positioning device for the ship can assist in installing the mooring seat and can also detect the installation precision of the mooring seat so as to ensure that the bottom of the mooring seat accurately extends out of a deck by 3 mm.

The invention discloses a pneumatic horizontal dock gate untwisting maintenance method which comprises the following steps: S1, a preparation stage: a tidal bulkhead and a seaport seal hole form a closed left cabin and a closed right cabin, an air pipeline and a plurality of groups of bollards are connected to a B surface of a dock gate, two groups of floating cranes are prepared, and temporary winches are mounted at the head parts of the floating cranes; s2, degumming: utilizing two groups of floating cranes to hook the dock gate and take cables, enabling the floating cranes to abut against the dock gate in a T-shaped mode, injecting water into the dry dock to enable the dock gate to lie flat, and lifting the dock gate through the cooperation of the two groups of floating cranes to realize untwisting and floating; and S3, dock gate docking maintenance: two tugs are adopted to pull the front and back cables of the dock gate end to end, and the dock gate is dragged to be docked for maintenance. A sling and an air pipeline are installed at one end of the dock gate, the other end of the dock gate is connected with a tug, dock gate reinstallation is basically a twist-off reverse operation process, and the dock gate reinstallation comprises the steps of tidal bulkhead / seaport hole sealing, air pipeline connection and bollard installation on the B face of the dock gate. The safety of the dock gate in the dismantling and reinstalling process can be guaranteed.

A system and method of a temporary protective structural system. The system includes a plurality of frame members. The frame members define a pair of opposing studs and integrated top plate. The system also includes noggings connecting the studs. Ceiling joists are also included. The combination creates at least one free-standing tunnel module. Vertical wall panels are secured to the exteriors of the free-standing tunnel modules, thereby vertically enclosing the free-standing tunnel modules. Horizontal ceiling panels are secured to an exterior ceiling area of the tunnel modules. Horizontal floor panels provide a protective surface for the floor. When constructed, the combination of elements and tunnel modules create a protective barrier for sensitive surfaces in a construction zone.

The utility model provides a dock door lower capstan waterproofing cylinder tooling, comprising: a cylinder, the top and bottom of the cylinder having openings, and the opening at the bottom is used to accommodate the dock door lower capstan; a fastening device, arranged on the outside of the side wall of the cylinder, for connecting and fixing the cylinder to the dock door side wall; a water pump assembly, comprising a water pump and a pipeline, the water pump assembly is configured as follows: the water pump pumps out the water in the cylinder and discharges it to the outside of the cylinder through the pipeline. The cylinder can separate the dock door lower capstan from the seawater when the construction enclosure range is minimized, and the water in the cylinder can be pumped out by the water pump assembly, ensuring that the dock door lower capstan is always in a waterless environment during maintenance. Since the volume of the cylinder is small, the construction cost is low and the cycle is short. In this way, not only the maintenance cost is reduced, but also the maintenance effect can be guaranteed, solving the problem of high maintenance cost and low efficiency of the existing dock door lower capstan.

A marine rail lift has a lift deck assembly configured to receive a watercraft thereupon and move between a raised position and a lowered position relative to a parent dock. A plurality of track rails connected to the side walls of a berth of the parent dock define a movement path of the lift deck assembly between the raised position and the lowered position. A plurality of retractable track pins engage the lift deck assembly to the track rails. A lift control system is operatively engaged with the lift deck assembly and configured to displace the lift deck assembly between the raised position and the lowered position. The lift control system manages the volume of air contained within one or more lift tanks of the lift deck assembly to control displacement of the lift deck assembly through buoyant force.

The utility model discloses an assembly type steel structure cofferdam, and relates to the technical field of cofferdams. The dock comprises a dock body, a plurality of water baffles are inserted into the inner wall of the dock body in a sliding mode, and a plurality of dock gate hinged supports are fixedly installed on the inner wall of the dock body. When the water retaining device is used, a user firstly removes the gate, the connecting rings are connected with an elevator, then a plurality of water retaining plates are sequentially placed on the inner wall of the dock body, and the water retaining plates are limited through the limiting mechanisms, so that water outside the dock body can be blocked; then water drainage operation is conducted on the interior of the dock cofferdam through water drainage holes in the surface of the dock cofferdam, after water drainage is completed, a user can replace the dock gate hinged support, and after using is completed, the user can replace the dock gate hinged support by releasing limiting of the multiple water baffles through a limiting mechanism; and the plurality of water baffles can be used for the second time after being pulled out through the connecting rings, so that the practicability of the device is fully embodied.

The invention relates to the technical field of fair lead installation, in particular to a positioning precision control method for ship fair lead installation, which comprises a jig frame, an upper base and a lower base are installed on the jig frame, a structure reinforcing pipe is detachably installed between the upper base and the lower base, and a temporary pipe is fixedly installed at the top of the lower base. An additional supporting pipe is fixedly installed on one side of the lower base, temporary fasteners are arranged on one side of the temporary pipe and one side of the upper base, a temporary supporting beam is installed on the jig frame, a supporting column is arranged on one side of the jig frame, and jacks are arranged on the supporting column and the temporary supporting beam. The whole assembled fair-lead is subjected to tire release and then transported to the dock side to be integrally turned over, carried and hoisted, sealing, welding and debugging are carried out, in the fair-lead hoisting process, hoisting is carried out according to temporary fasteners, the additional supporting pipes and the chain rods are kept to be fixed, and then the combined fair-lead and the ship outer plate are integrally welded; and finally, dismantling the temporary fastener and the temporary pipe of the temporary structure in the fair lead.

The utility model discloses an external scaffold structure for ship construction side cabin sections, which relates to the technical field of ship engineering technology, and comprises a scaffold straight hanging frame and vertical side walls arranged on a top side cabin section and a bottom side cabin section, and the top of the scaffold straight hanging frame is in hook type connection with a top side cabin deck and a bottom side cabin outer plate through hook parts; the scaffold inclined hanging frame is arranged on the surfaces of the top side cabin inclined top plate and the bottom side cabin inclined bottom plate, and the top of the scaffold inclined hanging frame is in hook type connection with the top side cabin deck and the bottom side cabin outer plate through hook parts. According to the external scaffold structure for the ship building side cabin sections, the scaffold structure comprises the scaffold straight hanging frame and the scaffold inclined hanging frame, the scaffold structure is correspondingly built according to different machining sides of the top side cabin section and the bottom side cabin section, building is rapid, connection is stable, potential safety hazards are reduced, and construction efficiency is effectively improved. The hook part of the scaffold structure is in hook type connection with the top side cabin deck and the bottom side cabin outer plate, so that the ship can be effectively prevented from being damaged, and construction is more efficient.

The invention relates to the field of dock management, in particular to an intelligent dock device and management system based on an AI unmanned ship, and the device comprises a data interaction module which is used for obtaining the parameter information of a network system, constructing a wireless transmission network based on the parameter information of the network system, and transmitting the wireless transmission network to the AI unmanned ship based on the wireless transmission network; performing data interaction control according to the interaction request of the unmanned ship; the sinking and floating control module is used for carrying out centralized overall evaluation on a pre-installed smart dock device according to the interaction request based on the wireless transmission network, obtaining an evaluation result and carrying out sinking and floating control on the smart dock based on the evaluation result; the battery monitoring module is used for carrying out charging and discharging monitoring on a battery module of the smart dock through a cloud platform based on the wireless transmission network and the interaction request to obtain a monitoring result; and the control management module is used for controlling and managing the smart dock through the cloud platform system according to the evaluation result and the charging monitoring result to accelerate the sinking and floating of the dock and improve the working efficiency.

The invention relates to the technical field of docking blocks, and discloses a movable docking block which is mounted in a dock and comprises a track and a docking block body, the track is arranged on the bottom surface in the dock, mounting grooves are formed in the two sides of the lower end of the docking block body, the docking block body is clamped on the track through the mounting grooves, and driving walking mechanisms are arranged in the two mounting grooves. The driving walking mechanism is located at the upper end of the track, a T-shaped groove is formed in the upper end of the docking block body, and the docking block body is provided with a height adjusting assembly through the T-shaped groove. According to the movable docking block, by arranging the driving walking mechanism, when the docking block body needs to be moved, the docking block body can be effectively jacked up to be separated from the ground through working of a hydraulic jacking rod, then motor core walking wheels are started, the docking block body moves to a marking position along a track, positioning is completed, and time and labor are saved; the inclined rods and the limiting guide wheels are arranged, so that the docking block can be effectively matched with walking wheels of a motor core, and inclination of the docking block body is avoided.

The invention discloses an installation method of a large ship tail shaft. The installation method comprises the following steps that S1, an installation platform is erected outside a cabin, and a dragging rail is arranged; s2, arranging a special mounting trolley according to the structural characteristics, the weight and the gravity center of the tail shaft; s3, the tail shaft is placed on a mounting trolley, and the position of the shaft is adjusted through a jackscrew on the mounting trolley; s4, an electric hoist is used for dragging the stern shaft, fine adjustment is conducted on the installation trolleys in good time, when the first installation trolley reaches the end of the stern ball, dragging is stopped, an auxiliary hanging belt is installed, and the hoist is tensioned to enable the hanging belt to be stressed; s5, a jackscrew of the first installation trolley is loosened, the first installation trolley is moved to the position in front of the gravity center of the stern shaft, the stern shaft continues to be dragged, and when the trolley is close to the end face of the stern ball, the first installation trolley is detached after being split; s6, the penetrating shaft continues to be dragged, and the stern shaft is dragged into the shaft sleeve; and S7, after the tail shaft penetrates into the cabin, the tail shaft is dragged in place through a third mounting trolley in the cabin, a second mounting trolley outside the cabin and an auxiliary hanging belt.

The invention discloses a method for dismantling a waste anchoring type dock wall in a dry environment. The method comprises the steps that S1, early-stage preparation is conducted; s2, the anchoring system is dismantled; s3, the dock wall structure is dismantled; s4, the steel sheet pile is pulled out; wherein the early-stage preparation stage comprises the step of arranging a displacement settlement observation point, a deep soil mass displacement meter and an underground water level observation well at the top of an excavation design slope so as to monitor the stress change condition of a soil mass. According to the method, by optimizing the dismantling process and accurately controlling the dismantling standard, the dismantling operation of the dock wall can be efficiently and safely completed, and the problems of soil instability and the like caused by dismantling can be effectively avoided.

The invention relates to the technical field of dock and immersed tube dry dock building, in particular to a dock gate structure, a dock gate system and a dock gate mounting method.The dock gate structure comprises a dock gate which is of a grillage structure; the supporting frame is used for supporting one side of the dock gate through a plurality of jacks, and the supporting frame can be detachably separated from the dock gate. According to the dock gate structure, the support frame which is detachably connected is arranged on one side of the dock gate to provide external support for the dock gate and share partial stress, so that the dock gate can be designed into a lighter grillage structure, and the volume of the dock gate is greatly reduced. After being prefabricated, the dock gate can be in a flat state on the water surface to be hauled, and due to the fact that the size and draught are greatly reduced, the requirement for the channel depth is reduced. After being hauled to the site, the device is assembled with the supporting frame for use, so that the overwater operation processes such as floating transportation and installation are simpler, more convenient and more efficient, and the engineering construction efficiency is greatly improved.

The invention discloses a ship building supporting tool which comprises a first supporting assembly, the first supporting assembly is connected with a second supporting assembly and drives the second supporting assembly, the second supporting assembly is connected with a third supporting assembly and drives the third supporting assembly, and the third supporting assembly is connected with a supporting platform. And the supporting platform is driven. According to the technical key points, the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder jointly form a driving part, the supporting height of the supporting tool can be flexibly adjusted only by controlling the telescopic stroke of the driving part, automatic adjustment can be achieved according to actual use requirements, the flexibility of the supporting tool in the use process is improved, and the working efficiency is improved. After the supporting tool is used, the supporting tool does not need to be disassembled, all that is needed is to control all the driving components to enable the supporting tool to be in a folded state, when the supporting tool is used, on-site assembly does not need to be conducted, all that is needed is to control all the driving components to enable the supporting tool to be unfolded by a specified height.

An inflatable dock includes a docking platform with an inflation interface, a pair of arms, and an indentation positioned between the arms, a perimeter edge having a plurality of edge handles, a water-contacting surface opposing the docking platform and with the perimeter edge positioned between the docking platform and the water-contacting surface, an integrated ramp system positioned within the indentation and including a ramp structure with a plurality of ramp steps with at least two of the steps being weighted, and a plurality of attached metallic rings.

The utility model belongs to the technical field of ships, and particularly relates to a launching barge anchoring equipment reinforcing structure which comprises a launching barge. The launching barge comprises a buoyancy tank in the middle and buoyancy towers arranged at four corners of the buoyancy tank; anchoring equipment is arranged on the buoyancy tank, the anchoring equipment is used for fixing the launching barge in a water area, and the buoyancy tank comprises a buoyancy tank deck and a buoyancy tank end sealing plate; a fixing reinforcing device is arranged on the anchoring equipment and used for reinforcing the anchoring equipment. By arranging the anchoring equipment, when a ship is berthed, the anchoring equipment can fix the ship at a preset position and prevent the ship from drifting due to external force such as stormy waves, the structural strength of the anchoring equipment can be enhanced by arranging the fixing and reinforcing device, more loading force can be borne, and falling and damage caused by insufficient structural strength are prevented; the safety of the ship is influenced. The stable, safe and controllable operation of the ship entering and exiting the launching barge and the sinking and floating process is ensured, and the reinforcing structure of the launching barge anchoring equipment is reliable.

The utility model relates to the technical field of docks, in particular to a liftable unmanned dock which comprises a base, a floating block and a lifting device. The base comprises a plurality of base columns arranged in the vertical direction and a base table fixedly connected with the base columns, and the base columns are fixed to a riverbed. The floating block is installed between the multiple foundation pillars, a placement cavity is formed in one side of the floating block and suitable for containing the unmanned ship, and a charging base matched with the unmanned ship is installed at the bottom of the placement cavity. The lifting device is installed between the floating block and the base column so that the lifting device can drive the floating block to move in the length direction of the base column. When the water level heights are different in the wet season and the dry season, the lifting device can correspondingly adjust the height of the floating block. The unmanned dock has the effect that the unmanned dock adapts to different water levels to supply power to the unmanned ship.

The utility model discloses a dock gate sealing structure, and relates to the technical field of maritime work equipment structures. Comprising a first sealing piece, the first sealing piece is installed on the dock side of a dock gate body in the working state, and the first sealing piece is used for sealing a gap between the side wall of the dock gate body and a sealing face of a dock entrance structure; the second sealing piece comprises a water seal section and an installation section which are connected, the installation section is installed on the water facing side of the dock gate body in the working state, and the installation section can seal a gap between the water seal section and the dock gate body; in the installation state, the water seal section abuts against the sealing face of the dock entrance structure all the time. According to the dock gate sealing structure, sundries entering the space between the dock gate water seal and the sealing face can be reduced, so that the service life of the sealing piece is prolonged, meanwhile, double-layer sealing is arranged, the sealing performance is good, and the water stopping efficiency and the safety coefficient of the dock gate sealing structure are improved.

The welding support comprises a connecting mechanism and two supporting frames, the connecting mechanism comprises a base and a driving mechanism arranged on the base, the driving mechanism is used for driving the two supporting frames to synchronously and oppositely move in a reciprocating mode relative to the base, and first supporting pieces with adjustable angles are arranged at the tops of the supporting frames; through the arrangement of the connecting mechanism, the two supporting frames of the welding support can be kept in the center symmetry state of the base all the time, the distance between the two supporting frames is rapidly adjusted, the two supporting frames support the ship with the same acting force, and the bearing angle of the ship can be adjusted by combining the angle adjustment of the first supporting piece relative to the supporting frames; the strength of the welding support and the stability of ship supporting can be improved, the driving mechanism can be driven by a two-way lead screw, operation is easy, the two supporting frames can be used in a combined or independent mode, and the using flexibility and using efficiency of the welding support are improved.

A steel structure supporting frame assembled according to standard knot combination comprises a stand column assembly and a supporting assembly used for providing a supporting height for the stand column assembly, the supporting assembly comprises the standard knots which have different heights and are sequentially connected, and a transfer beam used for installing the standard knots is arranged at the bottom of the supporting assembly; the stand column assembly comprises a stand column and an I-shaped transfer beam used for supporting the stand column. The supporting assembly is composed of at least one standard knot. Compared with the prior art, the number of the standard knots can be adjusted according to the actual supporting height, and the number of the standard knots with different sizes can be adjusted to meet the actual supporting height, so that the supporting requirements of different heights are flexibly met, field cutting is not needed, and the construction efficiency and flexibility are greatly improved; the problem that in the prior art, a supporting frame is not matched with the needed supporting height is solved, and the risks of size errors and bearing capacity reduction caused by cutting are reduced.

The utility model relates to the technical field of unmanned docks, in particular to a positioning dock system which comprises a floating block, a ship body and a positioning assembly. A placement cavity is formed in the floating block, and a charging base is installed on the bottom wall of the placement cavity. The ship body is located in the containing cavity, a charging port is formed in the stern of the ship body and corresponds to the charging base, and positioning holes are formed in the two sides of the bow of the ship body. The positioning assembly comprises fixing seats, driving parts and telescopic rods, the fixing seats are fixedly connected to the floating block and installed on the two sides of the ship body, the driving parts and the telescopic rods are installed in the fixing seats, and the driving parts drive the telescopic rods to face the interior of the containing cavity so that the telescopic rods can be arranged in the positioning holes in a penetrating mode. Through cooperation of the positioning hole, the fixing base, the driving piece and the telescopic rod, when the ship body needs to stop, the telescopic rod is directly arranged in the positioning hole in a penetrating mode to lock the ship body. The method has the effect of facilitating docking of the unmanned ship.

The utility model discloses a decompression drainage anti-floating structure of a dry dock, and relates to the technical field of dry docks. The utility model provides a decompression drainage anti-floating structure of a dry dock. The decompression drainage anti-floating structure comprises a decompression drainage layer, an overhaul well and a drainage blind pipe, the decompression drainage layer is arranged at the bottom of the dock chamber bottom plate; the overhaul well penetrates through the dock chamber bottom plate and extends into the decompression drainage layer; the at least two overhaul wells are arranged on the side, close to the dock chamber combined pile wall, of the dock chamber bottom plate. The two ends of the drainage blind pipe are connected with the bottoms of the overhaul wells correspondingly, and the drainage blind pipe penetrates through the pressure reduction drainage layer. According to the embodiment provided by the utility model, the water stopping system is closed through the water stopping curtain arranged on the outer wall of the dock chamber combined pile wall, and meanwhile, the water drainage system is formed by the overhaul well, the decompression water drainage layer, the water drainage blind pipe and the water drainage open trench, so that underground water permeating into the lower part of the dock chamber bottom plate is drained, the pressure borne by the dock chamber bottom plate is reduced, and the dry dock is stable in structure; the service life of the dry dock is prolonged.

The invention relates to the technical field of ships, and discloses an angle-adjustable flat ground ship moving supporting tool. The angle-adjustable flat ground ship moving supporting tool comprises a supporting part, a fixing rod and an adjusting part. The adjusting part comprises two fixing plates, a rotating groove is formed between the two fixing plates, a plurality of fixing holes are formed in the fixing plates, and the fixing holes are formed in the vertical direction at intervals and penetrate through the rotating groove; the supporting part comprises a supporting plate and a connecting plate, the supporting plate is fixedly connected to the top of the connecting plate and forms a supporting face matched with the outer walls of the head and the tail of the ship, the connecting plate is arranged in the rotating groove and rotationally connected with the fixing plate, a positioning hole is formed in the connecting plate, and the fixing rod can sequentially penetrate through the fixing hole and the positioning hole to fix the connecting plate and the fixing plate. The contact area with the outer wall of the ship is increased through the supporting faces of the supporting parts, the problem of deformation of the steel piers at the head and tail areas of the ship is solved, and safety is improved. The adjusting part can adjust the angle according to the curvature change of the ship to ensure good contact between the supporting surface and the outer wall of the ship and reduce the deformation risk of the steel pier.

The self-elevating dock comprises a main ship body, a notch is formed in one side of the main ship body, a lifting platform is arranged below the main ship body, the lifting platform is arranged on the side, close to the notch, of the main ship body, a lifting device, pile legs, a crane and a platform lifting system are arranged on a deck of the main ship body, and the pile legs penetrate through the deck of the main ship body; the crane is connected to a deck of the main ship body and comprises a main crane and an auxiliary crane, the lifting platform moves in the vertical direction of the pile legs through the lifting device, the lifting platform is of a permeable structure, and the platform lifting system is connected with the lifting platform. A stable platform is provided for installation of the draught fan, static-to-static installation of the floating type draught fan is achieved, and time and labor are saved.

The invention relates to the technical field of dock gates, in particular to a buoyancy tank type dock gate which comprises a dock main body, a dock entrance is formed in the dock main body, a dock gate main body is arranged in the dock entrance, and limiting mechanisms facilitating auxiliary fixing are arranged on the two sides of the dock gate main body. The bottom of the dock entrance is provided with a positioning mechanism facilitating auxiliary positioning sinking of the dock gate body, the lifting groove is formed in the bottom of the dock entrance, the bottom groove is formed in the bottom of the lifting groove, the lifter is fixedly connected to the interior of the bottom groove, and the bracket is fixedly connected to the top of the lifter. According to the floating box type dock gate, a lifting machine, a bracket and a clamping plate are installed in a lifting groove and a bottom groove formed in the lower portion of the dock gate body, the clamping plate is connected with the bracket through a limiting rod and a push-pull rod, meanwhile, the inner end of the push-pull rod is connected with a second push arm, a connecting base and a linkage shaft, and the linkage shaft is connected with a telescopic cylinder through a second push plate; the clamping plates on the two sides of the bracket can be conveniently controlled to be opened and closed.

The invention relates to the technical field of unmanned ship charging devices, in particular to an autonomous charging dock for linkage patrol unmanned ships and a charging method. The charging dock comprises a floating bank layer, a bottom plate layer and a charging layer, the floating bank layer is provided with a floating plate, the floating plate floats on the water surface, a charging notch is formed in one side of the floating plate, lifting mechanisms are arranged on the floating plate on the two sides of the charging notch, and a fixing frame is arranged on the floating plate at the inner end of the charging notch; the bottom plate layer comprises a lifting plate, the lifting plate is located at the charging notch of the floating plate, and the lifting mechanism is in driving connection with the lifting plate; the charging layer comprises a floating electromagnet and a fixed magnetic attraction charging head, the floating electromagnet is installed on the fixing frame in a sliding mode in the vertical direction, and the fixed magnetic attraction charging head is fixed to the end of the fixing frame. The problems that in the prior art, a dock is complex in structure, poor in anti-interference performance, insufficient in charging stability and the like are solved.

The invention provides a method for constructing a methanol cabin section of a methanol power container ship engine room shed. The method comprises the steps that the methanol cabin section is divided into a first platform middle assembly, a second platform middle assembly and a top enclosure bulkhead small assembly; the first platform middle assemblage, the second platform middle assemblage and the top enclosure bulkhead small assemblage are built; and the first platform middle assembly and the second platform middle assembly are overturned to normal states, the first platform middle assembly is positioned and placed on the jig frame, then the second platform middle assembly is positioned and installed on the first platform middle assembly, and finally the top enclosure bulkhead small assembly is installed on the top of the second platform middle assembly. By the adoption of the method, smooth subsection building can be achieved, subsection building difficulty is lowered, subsection building precision is guaranteed, and construction efficiency is improved.