30results about How to "Convenient for underwater work" patented technology

The invention provides an underwater pipeline automatic drilling machine. The underwater pipeline automatic drilling machine comprises a steel wire rope guiding mechanism, a feeding driving mechanism,a drilling driving mechanism, a clamping mechanism, a pipeline positioning mechanism and an upper and lower bracket, wherein the upper and the lower support form a machine body main body part througha pin shaft, the steel wire rope guide mechanism, the pipeline positioning mechanism, the feeding driving mechanism and the drilling driving mechanism are arranged on the body part of the machine body. The underwater pipeline automatic drilling machine are used for achieving drilling work of pipelines with different sizes at one time; the system can be automatically controlled and can be operatedby an ROV, the pipeline positioning mechanism, a steel wire rope tightening mechanism can select different driving modes under different working conditions, the application is flexible, and underwater operation is facilitated; and the underwater pipeline automatic drilling machine can adapt to the narrow working environment of the seabed pipeline and the ground space.

The invention relates to a deep-water well-drilling device that is based on near-water-level disengagement, which is characterized in that, the drilling device comprises a water-isolating pipe connected with a well-drilling platform; in the middle of the water-isolating pipe, an upper flexible joint is arranged; the water-isolating pipe passes a float cabin and is connected with a blowout preventer; the upper end of the float cabin is connected with the water-isolating pipe through a disengaging mechanism; below the blowout preventer, a ballast tank is arranged; between the blowout preventer and the ballast tank, an upper wellhead is placed; the upper end of a stress joint connected with a centering guide goes deeply into the ballast tank and is connected with the upper wellhead, and the lower end of the stress joint is connected with a hi-pressure water-isolating pipe, out of which a float block is provided; the bottom end of the hi-pressure water-isolating pipe is connected in sequence with a lower flexible joint, a lower wellhead, a conduit and a casing pipe; the conduit and the casing pipe are fixed in the seabed; between the perimeter of the blowout preventer and the lower part of the opening of the moon pond of the well-drilling platform, at least three centering ropes are connected. The invention is of high applicability, steady performance, is convenient to disengage the water-isolating pipe, and can be widely used in deep-water well drilling.

A pressure-adaptive high-speed light underwater cutting tool, including a power element, the output shaft of which is stepped, and bearing chamber shells are installed on the outer circumferential surfaces of the first stepped surface and the second stepped surface through deep groove ball bearings One end of the housing of the bearing cavity is equipped with a flange through a fastener, and the first handle is installed on the upper part of the flange, and the flange is locked with the power element at the same time; the outer part of the deep groove ball bearing on the second step surface is installed with a A gasket and a pair of disc springs, a sleeve is installed on the second stepped surface outside the disc spring, and a shaft seal assembly is installed on the outside of the sleeve; the outer end surface of the bearing chamber housing is equipped with an end cover through a seal, and the bearing chamber housing A compensation film protection cover is installed at a distance from the outer ring of the end cover at the same time, and a rubber compensation film is installed on the inner wall of the compensation film protection cover, which works reliably and is convenient for divers to work underwater.

The invention provides a valve box structure for an underwater machine hand. A plurality of control valves and a plurality of control circuit module boards are mounted in a box body, in which a distributor and a wiring terminal are arranged; the box body is provided with a plurality of oil pipe connectors, oil supply pipe connectors, pressure compensator connectors, oil return pipe connectors andelectric wire connectors, wherein a base board of the box body is provided with a plurality of upper posts; the upper post is mounted with a control circuit main board; a plurality of control valves are mounted on the base board of the box body; a plurality of control circuit module boards are mounted on the control circuit main board; the inner ends of the plurality of oil pipe connectors are respectively connected with a plurality of control valves through oil pipes; the inner ends of the oil supply pipe connectors are connected with the distributors which are respectively connected with the plurality of control valves; the plurality of control valves are respectively connected with oil return ports of the distributors; and the electric wire connectors are respectively connected with the control circuit module boards which are respectively connected with the control valves. The structure causes the box body structure to be more compact, and improves the efficiency and sealing performance controlled by the underwater work. Therefore, the use is safer.

The invention relates to a working tool magazine for underwater wet modular reloading of an ROV (Remotely-Operated Vehicle) and a docking device thereof. The working tool magazine comprises a tool magazine, wherein the top of the tool magazine is docked with the ROV through a docking module; an upper half part of the docking module is fixed on the ROV; a lower half part of the docking module is fixed on the tool magazine. The working tool magazine has the advantages of compact and reasonable structure, and convenience in operation, and underwater operation can be realized conveniently through matched docking work of the tool magazine, the docking module and the ROV. During underwater operation, a plurality of operation tool magazines carrying different tools can be arranged at a fixed underwater reloading position according to an operation task needing to be finished by the ROV in a cruising range of a mother ship, a tool magazine needed by next operation can be replaced once underwater after ROV finishes operation once, and the tools and a sampling box do not need to be replaced on the mother ship on the water surface, so that the operation capability and efficiency of the ROV are improved.

The present invention proposes a kind of epoxy colored non-slip floor coating, which is prepared by the following raw materials in parts by weight: 100-140 parts of bisphenol A-epichlorohydrin type epoxy resin, 80-120 parts of 128 epoxy resin, 70-90 parts of epoxy modified acrylic resin, 50-70 parts of colored ceramic particles, 20-40 parts of new mercaptan curing agent, 10-20 parts of reactive diluent, 5-15 parts of filler, 5-15 parts of defoamer 1-5 parts of leveling agent and 1-5 parts of graphene oxide modified benzophenone UV anti-ultraviolet agent. The epoxy colored non-slip floor paint prepared by the invention is bright in color, strong in wear resistance, non-volatile in solvent, healthy and environment-friendly, can be constructed underwater, and has an appropriate curing time. No cracking, no aging, long service life, good comprehensive performance, and wide application prospects.

The invention discloses a stepping linear driver driving a ratchet wheel to rotate through hydraulic pressure. The stepping linear driver is characterized in that a first driving cylinder and a second driving cylinder are arranged on a driver body; the first driving cylinder and the second driving cylinder are provided with reset springs for resetting; piston rods of the first driving cylinder and the second driving cylinder are arranged matched with pawls; the pawls rotate around rotating pins; compression springs are arranged on the pawls; the compression springs have spring acting force on the pawls, so that pawl teeth of the pawls are matched with the ratchet wheel, and the ratchet wheel is driven to anticlockwise or clockwise rotate; the ratchet wheel is arranged on a power shaft; a driving gear is arranged on the power shaft as well; the driving gear is meshed with a matched driven gear; and the driven gear is driven to rotate to output driving torque. According to the obtained driver, through the driving cylinders and the stepping rotation of the ratchet wheel, the rotation amount can be accurately controlled, the control accuracy is greatly improved, and the pressure of a fluid passing through a valve is guaranteed to be constant in a set range; and the ratchet wheel is driven to anticlockwise or clockwise rotate through the two driving cylinders on the left and right, the rotation is flexible and reliable, and the reliability of a throttle valve is greatly improved.

The invention discloses a valve element recyclable type underwater throttle valve. A throttle valve body is mainly composed of two parts including a valve element assembly and a valve body assembly which are arranged in a splitting manner, wherein a cage sleeve arranged at the lower end of the valve body assembly is inserted into the valve body; a nut-screw rod mechanism capable of rotating leftwards and rightwards is formed by a screw rod shaft arranged on a connector, and rotary pivoting shafts which are arranged on the left and right parts of an arch-shaped body hoop respectively; a driver assembly of the valve element assembly is driven by a pressure cylinder assembly; the pressure cylinder assembly drives a ratchet of a ratchet mechanism arranged on a power shaft to rotate, and drives a driving gear and a driven gear arranged on the power shaft to rotate in an engaging manner; the driven gear drives a valve rod assembly to do linear reciprocating motion; a cage sleeve connected with the lower end of the valve rod assembly is provided with a plurality of flow through holes with different hole diameters. The throttle valve disclosed by the invention can be used for accurately controlling rotary amount through stepping type rotation of the driving cylinder and the ratchet, so that the control precision is greatly improved, and the pressure of fluid of a pipeline basically keeps in a set range.

The invention provides a modular underwater vertical diamond wire saw. The modular underwater vertical diamond wire saw is suitable for completing cutting work of underwater large-diameter structuralobjects, and can replace cutting modules underwater and keep notch positions unchanged. The saw is mainly composed of an overall frame 1, a feeding device 2, a clamping and fixing device 3, a cuttingdevice 4, a string bead wire tensioning device 5 and the like. During use, the modular underwater vertical diamond wire saw enclasps a to-be-cut structural object 6 in a vertical state. The wire saw is relatively fixed to the structural object by the clamping device, and the cutting device and the feeding device jointly act to achieve the cutting work. The underwater vertical diamond wire saw is stable and reliable in working state and small in occupied space, string bead wires can be replaced underwater through an ROV, operation is easy and convenient, implementation is easy, and the whole working process is achieved through hydraulic control.

The invention discloses an underwater fish spearing carrier, which comprises a carrying unit, at least one actuating unit, at least one image acquisition unit and at least one fish spearing unit, wherein the actuating unit is combined with the carrying unit and at least comprises a motor, and a propeller which is driven by the motor and can supply power when the underwater fish spearing carrier moves; the image acquisition unit is combined with the carrying unit and is used for acquiring a needed image; and the fish spearing unit is combined with the carrying unit and at least comprises a pneumatic cylinder, a shaft level driven by the pneumatic cylinder and a complementarily fetching device which is arranged at one end of the shaft level and can complementarily fetch marine products. A user can easily perform underwater associated operation and fish spearing activity by matching the carrying unit, the actuating unit, the image acquisition unit and the fish spearing unit of the underwater fish spearing carrier, so that the effects of improving safety, reducing danger during use and reducing needs of professionals are achieved.