37results about How to "Change buoyancy" patented technology

A submersible dredging vehicle relates to an underwater dredging technology. The submersible dredging vehicle is provided with a vehicle body, wherein a submersible sewage pump is arranged on the vehicle body, a drain pipe is arranged on a liquid outlet of the submersible sewage pump, four spiral propeller type driving wheels are arranged on the two sides of the vehicle body, spiral directions of the adjacent two driving wheels are opposite, a water retaining cover plate is arranged on the vehicle body, the vehicle body is provided with four driving motors connected with the four driving wheels and is further provided with a water storehouse and a draining pump, the draining pump is provided with a check pump, the water storehouse is provided with a water inlet pipe and a gas identification rod, an electric valve is arranged on the water inlet pipe, and the electric valve, the submersible sewage pump and the four driving motors are connected with a controller. The submersible dredging vehicle can move forwards and backwards, carry out translation, turn around by taking any one driving wheel as a circle center and by taking the center of the vehicle body as the circle center, move and the like through the turning matching of the four driving wheels. The submersible dredging vehicle disclosed by the invention has the advantages of high locomotive maneuverability, simplicity and convenience in position change, easy handling, no dead corner during working, more thorough cleaning, high dredging efficiency and strong subsidence and sliding capabilities.

The invention discloses a cable system and prospecting method for water area electrical prospecting. An ultrasonic wave ranging unit and an air bag apparatus are used for making improvements to conventional cable test systems and apparatuses that are used for land electrical prospecting, and an entire cable test system and method for water area electrical prospecting is obtained. The technologiesherein can provide better safety in water area engineering and prospecting.

The invention relates to a robot mechanism, in particular to an underwater gliding snakelike robot. The underwater gliding snakelike robot comprises multiple modules. Each module comprises a self-expanding part and a rotation drive part, wherein the self-expansion part comprises an expansion shell, an elastic rubber sleeve, an expansion steering engine, a steering engine output shaft and connecting rod telescopic mechanisms, the expansion steering engine is arranged in the expansion shell, the steering engine output shaft is connected with the expansion steering engine, the connecting rod telescopic mechanisms are evenly distributed on the steering engine output shaft in the circumferential direction, the expansion shell is sleeved with the elastic rubber sleeve, the elastic rubber sleeve is connected with the expansion shell in a sealed mode, the expansion steering engine drives the elastic rubber sleeve to expand or contract through the connecting rod telescopic mechanisms, and therefore the size of the self-expanding part can be increased or decreased. By means of the robot, the long voyage and maneuverability of the underwater gliding snakelike robot are perfectly combined, underwater low-power gliding of the underwater gliding snakelike robot is achieved through the self-expanding part, and underwater flexibility and maneuverability of the robot are achieved through the snakelike structure.

The invention discloses an artificial island segment, an assembled artificial island and a construction method thereof. The artificial island segment comprises a main body of a prefabricated part; andan inner cavity is formed in the main body. The assembled artificial island comprises at least two artificial island segments; and the two adjacent artificial island segments are connected with eachother. The artificial island segment comprises the main body of the prefabricated part and the inner cavity in the main body, and the assembled artificial island comprises the prefabricated part of each artificial island segment, so that the segmented prefabrication can be performed beforehand, and then, the artificial island segments are carried to a position to be installed for assembly; and compared with a traditional island construction mode through slope formation by stone throwing, island construction by cofferdams and deep insertion of large-diameter steel cylinders, the water operationand the waterbed foundation excavation quantity are reduced, a deep foundation pit is canceled, the foundation treatment workload is reduced, the environment influence is reduced, the construction difficulty is reduced, the construction time is shortened, the influence on navigation is lower, the cost is lower, the working conditions of various different foundation soil textures can be met, and the adaptability is high.

The invention relates to the technical field of underground pipeline detection, and discloses an underground pipeline high-precision floating type camera shooting detector and a working method thereof. The underground pipeline high-precision floating type camera shooting detector comprises a detector body, a balancing weight is arranged in the detector body, an air bag is arranged on one side of the balancing weight, and an inflation pump is arranged on one side of the air bag; and a microcontroller is arranged in the detector body, a detection rod is arranged at the top of the detector body, a supporting rod is arranged at the top of the detection rod, an LED illuminating lamp is arranged at the top of the supporting rod, a water level detector is arranged on one side of the supporting rod, a voice loudspeaker is arranged at one end of the detection rod, and a 360-degree panoramic camera is arranged at the other end of the detection rod. An electric device is arranged at the bottom of the 360-degree panoramic camera. According to the high-precision floating type camera detector for the underground pipeline, the height of the camera device can be adjusted, the infrared detection device is additionally arranged to detect collision objects, the elastic supporting structure is additionally arranged for buffering and vibration reduction, the detection range is wide, and operation is stable.

The invention discloses a silver paste transfer printing process. The silver paste transfer printing process comprises the following steps: step 1, silver paste containing colored ink is print-formed on a substrate through intaglio printing; step 2, the substrate is heated and shaped for the first time, wherein the temperature is controlled at 120+/-0.5 DEG C; step3, the substrate which is heated and shaped for the first time is conveyed to a second drying oven to be shaped again, wherein the temperature is controlled at 200+/-0.5 DEG C. As optimization, the silver paste containing the colored ink in the step 1 is formed by mixing raw materials including, by weight, 50 parts of a medium, 35 parts of imported colored ink, and 15 parts of pasting agents, wherein the medium is formed by mixing silver powder and a diluting solvent. The silver paste transfer printing process has the advantages that constituents of the silver paste are mixed in an optimized mode; meanwhile, the method of heating and shaping for two times is adopted, so that printed wallpaper is stronger in stereoscopic impression, better in stability, and not prone to discoloration and deformation; moreover, the steps are simple, easy to implement, and more environmentally friendly.

The invention discloses an efficient residue-free solid-liquid reaction device for chemical engineering. The efficient residue-free solid-liquid reaction device comprises guide wheels, a rotating shaft, a tank, a liquid discharge pipe, a heater, a water inlet pipe, a liquid flowmeter, a camera, an air bag, a gauze bag, a gas purification device and an overflow pipe. The guide wheels are arranged on the bottom surface of the tank. The heater is arranged in the tank. A thermometer and a PH detector are arranged on the side wall of the tank. The water inlet pipe is communicated with the upper portion of the tank. The liquid flowmeter is mounted on the water inlet pipe. A liquidometer and a timer are arranged at the top end of the tank. The air bag is arranged in the tank. The gauze bag is connected to the lower side of the air bag through a hanging rope. The rotating shaft is arranged in the tank. An impeller is mounted on the rotating shaft. The camera is arranged on the inner wall of the top end of the tank. A gas delivery pipe is communicated with the top end of the tank. The other end of the gas delivery pipe is communicated with the gas purification device. The liquid discharge pipe is arranged at the bottom end of the tank. The efficient residue-free solid-liquid reaction device has the advantages that reaction contact area and reaction speed are increased, unreacted residues are prevented from entering reaction liquid, and the efficient residue-free solid-liquid reaction device is convenient to clean and use, simple in structure and beneficial to popularization.

The invention discloses a suspended suction device which is characterized by comprising a water pump mounting tank, a buoy arranged on the water pump mounting tank, and a liquid level induction device, wherein the outer wall of the water pump mounting tank is sleeved by an inner tube; and a solenoid valve capable of inflating and deflating the inner tube is arranged inside the water pump mounting tank. The suspended suction device disclosed by the invention has the beneficial effects that the inner tube can be automatically inflated and deflated by virtue of the solenoid valve, so that the function of changing the buoyancy of the inner tube is realized, the whole device is further controlled to stably ascend and descend, and the floating sundries can be stably and efficiently filtered and collected. The buoy is used for stabilizing the system, and after the whole box body sinks below the liquid level, the box body does not sink to the bottom. The liquid level induction device is used for inducing the liquid level, and when the liquid level is far higher than the height of the box body, inflation is performed, and the solenoid valve is controlled to deflate when the liquid level is far lower than the height of the box body. According to the whole device, the floating objects are effectively treated, the treatment efficiency is improved, and the waste of resources is reduced.

The invention relates to the technical field of aquaculture, and particularly discloses an aquaculture net for outdoor aquaculture fishing and a buoy structure. The aquaculture net for outdoor aquaculture fishing comprises a net body, wherein meshes of the net body are porous, the net body is formed by weaving warps and wefts in a crossed mode, and the warps are formed by twisting ramie fibers and aramid fibers. The buoy structure of the aquaculture net for outdoor aquaculture fishing comprises a floating frame, wherein a plurality of hooks are evenly and fixedly connected to the inner circumferential face of the floating frame and fixedly connected with the net body, a side plate is fixedly connected to the bottom of the outer circumferential face of the floating frame, and a floating piece is arranged on the side plate. The problem that the buoyancy of an existing buoy structure is difficult to change according to actual requirements is solved.

According to the rapid buoyancy adjusting device with the water leakage detection function, air in an aircraft cabin is sucked into/discharged out of an external air bag, so that water drainage and the buoyancy center of an aircraft are changed, and an aircraft deepwater hydraulic buoyancy adjusting system is assisted in rapidly achieving buoyancy and posture adjustment in shallow water; and rapid emergency diving or rapid water outlet communication of the aircraft is realized. The buoyancy adjusting device comprises an air bag, a one-way valve, an air pump, an electromagnetic valve, a four-way base body and a water leakage detection assembly. A connector a of the four-way base body is connected with the air bag and is locked at the joint through a fastener; an outlet b of the four-way base body is connected with an air outlet of the air pump through a pipeline provided with a one-way valve, and the outlet end of the one-way valve is connected with the outlet b of the four-way base body. The water leakage detection assembly installed at the connector d of the four-way base body is used for water leakage detection of the air bag.

The invention relates to a height adjustable pneumatic transmission device and belongs to the technical field of delivery. The height adjustable pneumatic transmission device comprises a workbench, an air compressor, one or more than one conduit and a motor, wherein the conduits are uniformly distributed on the workbench, are located on the workbench through one or more than one bearing, and are rotationally connected with the workbench; the conduits are provided with injector heads; the air compressor is fixedly connected with the workbench, and are communicated with the conduits; the workbench is provided with more than two groups of legs; the legs comprise first and second legs; the second legs are provided with second motors; driving ends of the second motors are provided with gear sets; the first legs are provided with travel chains. The height adjustable pneumatic transmission device can transmit articles through gas push and suspension and is convenient to use and high in adjustment accuracy; the height can be adjusted.

The invention relates to the field of deep sea operation, in particular to a deep sea operation level ROV adjustable buoyancy system, which comprises a buoyancy body and a buoyancy module, a groove is formed in the buoyancy body, and the buoyancy module is detachably installed in the groove. The buoyancy device has the beneficial effects that the groove can be formed in any position of the buoyancy body, the buoyancy module is installed at any position of the buoyancy body accordingly, so that the buoyancy applying position of the buoyancy body is changed; in addition, the density of the buoyancy body and/or the buoyancy module can be changed by changing the material of the buoyancy body and/or the buoyancy module, so that the buoyancy of the buoyancy body is changed. Further, the buoyancy magnitude and the buoyancy applying position of the buoyancy body can be adjusted through the shape and the size of the buoyancy module and/or the groove, and therefore it is guaranteed that the ROV is in a zero-buoyancy balance state underwater. The structure is simple, the buoyancy module is convenient to install, a traditional oil way buoyancy adjusting system is not needed, cost is saved, and environment friendliness is achieved.

The invention discloses a reservoir breeding floating plate. The reservoir breeding floating plate comprises four pairs of first floating plate bodies and second floating plate bodies which are arranged in the shape of a rectangle, sliding rods are fixedly connected to the ends, close to the second floating plate bodies, of the first floating plate bodies, sliding cavities corresponding to the sliding rods are formed in the second floating plate bodies, limiting blocks are fixedly connected to the ends, located in the sliding cavities, of the sliding rods, support blocks are fixedly connectedto the tops of the second floating plate bodies, screws are rotationally connected to the sides, close to the first floating plate bodies, of the support blocks, fixed blocks sleeve the ends, away from the support blocks, of the screws through threads, the ends of the fixed blocks are fixedly connected with the tops of the first floating plate bodies, handles are fixedly connected to the ends, away from the support blocks, of the screws, and clamping blocks are fixedly connected to the sides, away from the screws, of the handles. Accordingly, by means of the first floating plate bodies and thesecond floating plate bodies, the length of the device can be increased freely according to the actual use condition, and then the application range of the floating plate is widened.