239results about "Hoisting/lowering gear" patented technology

A hydrostatic release mechanism is provided which comprises a sealed housing having an interior volume and a tunnel adapted to receive a tether extending therethrough. A depth sensor is mounted to the sealed housing and has a diaphragm covering an opening between the interior volume and the ambient conditions. A trigger is contained within the sealed housing and is operably connected to the diaphragm and a firing mechanism. The firing mechanism is actuated by movement of the trigger in response to inward movement of the diaphragm when the pressure on the diaphragm exceeds a predetermined force. The firing mechanism includes a piston having a blade which moves in response to the expanding gases from a pyrotechnic cartridge and passes through the tunnel thereby severing the tether extending therethrough.

The invention discloses a device for launching and recovering a boat on a mother ship. An opening and a launching and recovering door are arranged on the rear side of a cabin. The launching and recovering door comprises a door plate seat driven by a lifting device to ascend and descend and a door plate hinged on the door plate seat, and the door plate is driven by an opening and closing device to be opened and closed. A rail leading to the opening is arranged in the cabin, a trolley for carrying the boat and moving on the rail is arranged on the rail, and a bracket capable of docking with the rail when the door plate is opened is arranged on the door plate. The door plate is opened to enable the bracket to be docked with the rail, the boat is pushed onto the door plate, the door plate is driven by the lifting device to descend below the water level, and accordingly the boat is launched. When the boat is recovered, the door plate and the bracket are driven to descend below the water level, the boat runs to above the bracket, then the door plate is lifted to enable the bracket to support the boat, the door plate is lifted continuously to enable the bracket to be docked with the rail, and the boat is pulled into the cabin. By the device, launching and recovery of the boat on the mother ship is achieved quite conveniently, and the whole boat launching and recovery process is stable and safe.

The invention relates to a telescopic boat davit, which comprises a base (1), a pylon (2), a lifting device, a davit arm (4). The swinging base (1) is fixed on a boat body; a rotary disk which can do circular rotary motion is arranged in the swinging base (1) and fixed with the swinging base (1) with bolts; the pylon (2) is also fixed with the rotary disk with the bolts; the pylon (2) can do 360 degrees of circular rotary motion around a central line of the swinging base (1); the base which can do radial motion can drive the pylon and the davit arm to do circular rotary motion together, so that the range of application of the telescopic boat davit is expanded; and the lifting device which is fixedly connected with the pylon effectively reduces the occupied deck space, and the lifting device is matched with the davit arm driven by an oil cylinder, so that the complexity of operation is simplified, and a user and an operator can operate the device in a safe way to make the boat ascend or descend.

The invention discloses an unmanned ship cloth releasing and recovering device with a dock ship as the mother ship. The unmanned ship cloth releasing and recovering device comprises a bracket mechanism and a guiding and winding mechanism. The bracket mechanism is arranged on the mother ship. The appearance of the bracket mechanism is matched with the appearance of an unmanned ship. The bracket mechanism is used for wrapping the whole unmanned ship and supporting the unmanned ship. The bracket mechanism is further used for releasing or locking the unmanned ship according to instructions. The guiding and winding mechanism is arranged on the unmanned ship and used for aiming at a cabin of the mother ship and ejecting out a steel cable so that the unmanned ship can drive into the bracket mechanism according to the designated trajectory. Thus, by means of the unmanned ship cloth releasing and recovering device, the 3-tonnage-level (7.5-m-length) unmanned ship can safely and reliably releaseand recover cloth under the 4-level sea state; the unmanned ship cloth releasing and recovering device has the advantages of being reliable in running, simple in structure, high in autonomy and the like; under the complicated marine environment, the efficiency of the unmanned operation ship is improved, the cloth releasing and recovering program of the unmanned ship is simplified, and the space utilization efficiency of the mother ship and the unmanned ship is improved.

The invention discloses an unmanned ship arrangement and recovery system which comprises a butt joint connected with a sling of a mother ship and further comprises an ejection mechanism, an ejection head, a cloud deck mechanism, a butt-joint mechanism and a pulling line which are mounted on an unmanned ship. The ejection mechanism is mounted on the cloud deck mechanism, and the cloud deck mechanism is used for adjusting the ejection angle of the ejection mechanism. One end of the pulling line is fixedly connected with the ejection mechanism, and the other end of the pulling line is connected with the ejection head. The pulling line is used for guiding the butt joint to be embedded into the butt-joint mechanism, and the ejection mechanism is used for ejecting the ejection head to the mastership. The butt-joint mechanism is used for fixing the butt joint to fix the unmanned ship to the sling. The unmanned ship arrangement and recovery system can improve the arrangement and recovery efficiency of the unmanned ship.

The invention discloses an unmanned ship launching and retrieving device. The device comprises a fixing frame, a guiding mechanism, rotating blocks and limiting blocks; the fixing frame comprises a fixing bracket and two identical lateral fixing parts which are both of a dual-layer structure; the open end of each lateral fixing part is provided with a guiding mechanism of a splay-shaped opening structure; the limiting blocks and the rotating blocks are fixedly to the outer side faces of upper and lower layer frames of the lateral fixing parts; when an unmanned ship is launched, the rotating blocks are rotated downwards, and the unmanned ship is pulled out smoothly; when the unmanned ship is retrieved, the unmanned ship is smoothly moved into the lateral fixing parts under the guidance of the guiding mechanism, the rotating blocks are rotated upwards, the upper and lower layer frames of the lateral fixing parts are connected, meanwhile, limiting is achieved, and the unmanned ship is prevented from rolling out. According to the unmanned ship launching and retrieving device, the unmanned ship can be safely and reliably launched and retrieved automatically under the complex sea environment, the unmanned ship can be prevented from rolling out in the lifting process, and the device has the advantages of being reliable in operation, simple in structure, high in autonomy and the like.

A storage system has a relatively unobtrusive mounting plate which is permanently secured to the edge of a vessel's swim platform and removably receives and captively holds a roller assembly. The mounting plate comprises a generally planar rectangular plate configured to conform to the edge shape of the swim platform and includes a generally U-shaped channel extending around the periphery and open at the top to receive the roller assembly. The roller assembly includes a generally rectangular roller supporting plate shaped to fit within the channel of the mounting plate and be captively held therein and a pair of spaced mounting bosses between which there is mounted a roller which extends above the surface of the swim platform for assisting in the loading and unloading of a personal watercraft onto the swim platform. Locking pins extend between the roller plate and the mounting plate for locking the roller assembly in position for use.

A cradle is shaped to accommodate the hull of a small boat such as dinghy, personal watercraft or other type of boat. A support is mounted to a deck such a boat, pier or cock deck. The cradle is pivotally mounted to the support and can be moved to a loading position in which the cradle is generally vertical, or inclined to horizontal, and an outer portion of the cradle is at the water adjacent to the deck. The small boat is moved upon the water against the cradle. A pair of lines extend from the support and are trained through an inner portion of the cradle. The free ends of the lines are attached to the boat, and the lines are drawn toward the support, for example with a hand wheel or hand winch. The boat is pulled toward the support while remaining in a generally horizontal orientation. The boat pivots the cradle from the loading position to a generally horizontal storage position on the deck where the boat and cradle are secured by the lines.

The invention provides a fast extension and retraction device of an unmanned ship. The fast extension and retraction device comprises the unmanned ship, a tapered self-locking pendant sleeve with a tapered inner surface and a tapered self-locking pendant matched with the inner surface of the tapered self-locking pendant sleeve, wherein the tapered self-locking pendant sleeve is arranged on the unmanned ship through a metal bracket, a lifting ring connected with a mooring rope is arranged at the upper end of the tapered self-locking pendant, a notch matched with the our surface of the tapered self-locking pendant is formed in the tapered self-locking pendant sleeve, and the orientation of the notch is the direction of a ship bow; and two guide rails are arranged on the unmanned ship, the two guide rails are arranged symmetrically along the midline of the unmanned ship, and the ends of the two guide rails are connected with the notch of the tapered self-locking pendulum sleeve through guide members. According to the fast extension and retraction device of the unmanned ship, fast extension and retraction of the unmanned ship on the sea can be realized, the device is suitable for fast extension and retraction of the unmanned ship in complicated sea conditions by a main ship, and the whole extension and retraction system is simple in principle, simple in the process, convenient and fast to implement and good in reliability.

The invention discloses an underwater equipment deploying and recovering device. According to the underwater equipment deploying and recovering device, a mobile platform is pulled by a winch and driven by an electric motor to move on a guide rail; a steel wire rope is pulled by the winch to be wound on a fixed pulley on a bracket; and the steel wire rope is connected with a hoisted object by usinga remotely controlled releasing lifting hook and moves the object to the external side of a ship side to be placed or moves recovered object to the internal side of the ship side; therefore, variouskinds of underwater equipment are deployed and recovered. According to the underwater equipment deploying and recovering device, an object swinging and shaking phenomenon generated during lifting andplacing the object by using a crane can be avoided by using the bracket; the lifting and placing process is stable; and a collision between the lifted object and a hull cannot be caused; therefore, the hull and the object are prevented from being damaged and the personnel safety is guaranteed. The underwater equipment deploying and recovering device can execute ocean experiment tasks under accident prone rough sea conditions. And can effectively provide assistance to various deploying and recovering works. The underwater equipment deploying and recovering device does not need more operators tooperate and is suitable for deploying and recovering works of various kinds of underwater equipment such as boats, underwater vehicles and torpedoes.

A launch, recovery, and handling system includes a track system arranged on a deck of a ship and a stern door of the ship. The launch, recovery, and handling system also includes an aft cradle and a forward cradle that are connected to the track system and moveable in first and second directions along the track system. The aft cradle is moveable from a first position at a first area inside the ship to a second position on the stern door for at least one of launching and recovering a payload.

The invention provides a single-rope recovery method of an unarmored cable deep diving submersible. The method comprises following steps: (1), an emitter is mounted on a deep diving submersible; (2),one end of a throwing rope is fixed on the deep diving submersible, and the other end of the throwing rope winds around a bullet; (3), after the deep diving submersible returns to water surface near amother ship, an operator on the mother ship controls the emitter to start by a remote-control unit; (4), the bullet carrying the throwing rope flies and lands on the mother ship; (5), the operator onthe mother ship takes down the throwing rope from the bullet, and then one end of the throwing rope is fixed on a mushroom head; (6), a winch rolls up and hoists the mushroom head and the deep divingsubmersible through the throwing rope; and (7), a lifting arm is started to lift the deep diving submersible connected with the mushroom head onto the mother ship, and recovery is finished. A cable is thrown on the mother ship by the aid of the emitter, so that the operator is not required to perform underwater operation, risks of the operator are reduced, and working efficiency is increased.

The invention provides a platform type ship with a small escaping device. The platform type ship comprises platform type ship body and an escaping system and is characterized in that the platform typeship body comprises a ship body and standing columns mounted at the bottom of the ship body, the ship body comprises a platform and a cabin, the platform is mounted at the top of the cabin, limit columns and a first motor are mounted at the top of the platform, the first motor is mounted on one side of one limit column, a first belt pulley is arranged on the output shaft of the first motor, a first rotary shaft is arranged between the two limit columns, an escaping ladder winds the first rotary shaft, one end of the first rotary shaft is provided with a connecting shaft, the limit column on the motor side is provided with a through hole, one side of the limit column on the motor side is provided with a second belt pulley, one end of the connecting shaft penetrates the through hole to be connected with the second belt pulley, and the cabin is provided with a second rotary shaft. The platform type ship is reasonable in structure, high in safety performance and capable of fast rescuing trapped people.

The invention discloses a high-speed rescue boat lowering device. The device comprises a lifting arm frame, a lifting arm, pulling cables, a plurality of guide wheels, a first connecting part, a second connecting part and a hook, wherein the lifting arm is hinged with the lifting arm frame; the guide wheels are hinged to the lifting arm frame; the first connecting part is fixedly arranged on the lower end part of the lifting arm; the second connecting part is used for being connected with a rescue boat; the hook is fixedly arranged on the second connecting part; the first connecting part is provided with an inner cavity; the second connecting part is matched with the inner cavity; clamping grooves which are opened downwards are formed in the first connecting part; positioning rods are fixedly arranged on the second connecting part; the positioning rods are matched with the clamping grooves; an adjusting mechanism is arranged between the lifting arm frame and the lifting arm; the lifting arm frame and the lifting arm are matched through the first connecting part on the lifting arm and the second connecting part on the rescue boat; and the first connecting part and the second connecting part are matched through the clamping grooves and the positioning rods to form a rigid body. Swing is reduced in a rescue boat lowering process and a wave compensation effect can be achieved when the rescue boat falls onto the water surface, the rescue boat stably falls onto the water surface, the safety factor is high, and the stability is further improved because the adjusting mechanism for adjusting the verticality and the levelness is arranged.

The present invention provides a system for launch and recovery of a vessel (1) from a host ship or platform (13), said host ship or platform comprising a lifting device (2) having at least one first lifting cable (9), characterized in that the vessel (1) comprises at least one fastening device (3), releasably connectable to said at least one first lifting cable (9), and at least one lifting winch (5) comprising a lifting winch cable (11), and at least one mast system comprising a mast (14) connected to at least one lifting winch (5) by one end of the corresponding lifting winch cable (11), said mast system being capable of raising the connected end of the lifting winch cable in a vertical direction. In addition, a vessel suitable for said system, and a method for launch and recovery of such a vessel, is provided.

The invention relates to a device for launching and retrieval of a deep sea pull-type sonar system. The device comprises a pulling winch, a cable guiding component and a kunckle crane, wherein the pulling winch mainly comprises a support, a drum mounted on the support, a towrope wound on the drum, and a cable arranging mechanism mounted on the support; one end of the drum is connected with a cablecollecting and laying driving mechanism; a photoelectric slip ring is arranged at the other end of the drum; the cable guiding component comprises a cable guiding bracket and is connected onto a deckthrough a linear guide rail pair and a ball screw; a cable guiding pulley is mounted in the cable guiding bracket; a cable guiding piece provided with a worm cable guiding groove is arranged at the end close to the stern; two pneumatic support rods are connected between the cable guiding piece and the cable guiding bracket; the kunckle crane mainly comprises a base, a main arm rotatably connectedonto the base, a folding arm connected with the upper end of the main arm, a folding arm oil cylinder arranged between the folding arm and a support arm, a telescopic arm mounted in the folding arm,and a telescopic oil cylinder connected with the telescopic arm and the folding arm; and a lug ring for hanging a release is arranged at the outer end of the telescopic arm. The device is easy to control, saves manpower and is high in reliability.