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 the field of autonomous underwater robots, in particular to a high-precision buoyancy regulating device for an autonomous underwater robot, comprising a water permeable shelland a sealing shell, wherein an outer oil bag is arranged in the water permeable shell, and the sealing shell is provided with an inner oil cylinder, a direct-current motor, a gear pump, the valve setA and the valve set B. The gear pump is driven to rotate through the direct-current motor; the oil outlet of the inner oil cylinder is connected with the oil inlet port of the gear pump; the oil outlet port of the gear pump is connected with the first port of the valve group A; the second port of the valve group A is connected with the oil port of the outer oil bag; the oil inlet of the outer oilsac is also connected with an oil inlet port of the valve group B; and the oil outlet port of the valve group B is connected with a connection pipeline between the inner oil cylinder and the gear pump, therein, a one-way valve and a solenoid valve A are arranged in parallel in the valve group A, and an electromagnetic valve B and a throttle valve are connected in series in the valve group B. Theinvention can independently adjust the buoyancy of the underwater robot, has small volume, low energy consumption, low noise and high reliability.

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 provides a glider regulating device coupling roll regulation and buoyancy regulation. The glider regulating device comprises an external frame and an internal frame, wherein the internal frame is mounted in the external frame in a hinged and connected manner through two short shafts; one side of the external frame is provided with a stepper motor, and the output end of the stepper motor is connected with a worm; the end part of one of the short shafts penetrates through the external frame and is provided with a worm wheel which is meshed with the worm; the internal frame is provided with a DC motor; the output end of the DC motor is connected with an oil pump; the output end of the oil pump is connected with a valve block; the valve block is provided with two oil transporting ports, one of the oil transporting ports is connected with an inner oil tank arranged in the internal frame through a hose, and the other oil transporting port is connected with one end of a turbine flowmeter through a hose; the other end of the turbine flowmeter is connected with a leather bag through a hose; and battery packs are arranged in the middle of the internal frame. The glider regulating device disclosed by the invention is compact in structure design, high in space utilization efficiency and reliable in control, and is suitable for a gliding type submersible with a rotating shell.

The invention discloses a water ecology monitoring device and a monitoring method. The device comprises an upper shell and a lower shell which are detachably connected, the upper shell or the lower shell is internally provided with a control module, and a power supply module, a communication module, a positioning module and a storage module which are connected with the control module; the communication module is used for wireless communication connection between the monitoring device and a background monitoring terminal; an air bag is arranged outside the upper shell, an inflation and deflation device is arranged inside the upper shell, and the inflation and deflation device is communicated with an air inlet and an air outlet of the air bag; a driving device is arranged on the side wall of the lower shell; a concave detection cavity is formed in the side wall of the lower shell, the detection cavity is communicated with the outside, and a detection device for detecting the quality of a water body is arranged on the side wall of the detection cavity; a water depth measuring device is arranged at the bottom of the lower shell; the inflation and deflation device, the driving device, the detection device and the water depth measuring device are respectively connected with the control module.

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 discloses an underwater observation robot and a control method. The robot comprises a platform body, an observing device, a transmission device and a control device. The platform body comprises a sealed bin, a plurality of underwater propellers and a driving motor. The driving motor drives the underwater propellers to rotate. The observing device comprises a camera and an illumination module. The control device establishes a signal transmission channel through the transmission device. Image video information obtained by the observing device is transmitted to a user side through the transmission device. The control device comprises a gyroscope sensor for detecting the deviation angle of the robot and a controller. The controller receives an instruction from the user side and controls the driving motor. The method includes the steps of setting data according to the user side, controlling the robot to move by the controller, obtaining underwater video images, and controllingthe underwater propellers to adjust the balance according to the data of the gyroscope sensor. The underwater observation robot is simple in structure, the stability of the camera can be kept in thetorrential water flow, underwater photographing can be conducted according to a set route, and the video image data can be rapidly and effectively transmitted to the user side.

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 relates to a marine monitoring structure. The marine monitoring structure comprises a cage frame; the marine monitoring structure further comprises a mounting box and a mounting frame; atemperature sensor is mounted at the bottom end of the mounting frame; the mounting box is arranged above the mounting frame; the cage frame is detachably connected to the bottom of the mounting frame; a solar substrate is arranged at the top end of the mounting box; a transparent cover is arranged on the solar substrate; an image pick-up module and an antenna are installed in the transparent cover; a Beidou positioning terminal, a control module and a power source are installed in an inner cavity of the mounting box; the cage frame comprises a rope and a fish inlet; the two ends of the ropeare fixedly connected with hanging rings; the bottom of the cage frame is fixedly connected with a ring; fishing space is formed among the mounting frame, the cage frame and the ring; and through holes are formed in a fishing nets in the ring. Data of a tidal current surface layer are measured through components on the upper layer, an efficient fishing space can be provided, the economic applicability of the monitoring structure is enhanced, and the cost of the monitoring structure is low.

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 provides an environment-friendly type water purifying agent for industrial sewage. The water purifying agent is prepared from the following components in parts by weight: 35-38 parts ofporous magnetic polyacrylamide microspheres, 20-22 parts of modified coconut shell charcoal, 15-17 parts of sulfonated coal, 10-11 parts of sepiolite, 10-11 parts of zeolite, 8-10 parts of caulis bambusae in taeniis, 6-8 parts of bran, 6-8 parts of sodium lignin sulfonate, 4.5-5 parts of chitosan, 1.5-2 parts of polyepoxysuccinic acid, 2-3 parts of cortex mori and 1.5-2 parts of cortex magnoliae officinalis. The raw material components are environmentally friendly and non-toxic, and do not cause secondary pollution on a water body; the raw material components with special content are mixed according to a special preparation method, so that the removal effect, on pollutant organic substances and heavy metal in sewage, of the water purifying agent prepared can be greatly improved; and meanwhile, the prepared water purifying agent further can effectively kill bacteria and microorganisms in the water body.

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 discloses a floater of solar water heater water-temperature water-level probe, wherein the floater is an open type hollow floater. The advantages of the invention are that: the solid or hollow floater is changed into the open type hollow floater by improving the structure of the floater, while in use, the enough flotation power of the floater is ensured and the inconsistent inside-outside pressure difference of the floater wall is improved, thus the service life of the floater is greatly prolonged and the open type floater can self regulate and self make up air, therefore the flotation of the floater can be kept for a long time.

The invention discloses a floating boat, which at least comprises a metal boat body, wherein the boat body comprises a boat shell, a deck and a boat cabin formed by the boat shell and the deck. The boat body is of sealed structure. The boat cabin comprises a head cabin, a middle cabin and a tail cabin, wherein baffle plates are arranged between the middle cabin and the head cabin and between the middle cabin and the tail cabin, and the structure of the head cabin and the tail cabin is symmetrical. The floating boat has the advantages of stability, reliability, simple structure and convenient maintenance and replacement.

The invention discloses a sewage treatment detection method which is characterized by comprising the following steps: step 1, adopting a sewage treatment detection device, putting a detection frame plate of the device into a detection sewage pool, and adjusting and controlling the detection height through a moving assembly according to actual conditions; step 2, after positioning, controlling a traction rope, obtaining the water quality condition of the pool bottom through a second water quality sensor, and sending the information to a central processor for analysis and processing; 3, when sewage at the top of the sewage pool is detected, a homogenizing assembly is started to suck the sewage at the bottom of the device into the device, the sewage is stirred and then enters a U-shaped channel, at the moment, four first water quality sensors obtain the water quality condition of the homogenized sewage, meanwhile, the sewage in the U-shaped channel can be squeezed out, sewage detection and resampling are achieved, and the detection accuracy is improved. Sending the two groups of detection signals to a central processor for analysis and processing, and taking a mean value of simultaneous detection; and step 4, processing the three groups of numerical values, and sending the processed numerical values to a remote control terminal for display through a signal transmitter.

A pipeline leakage detection device comprises a sealing shell, an elastic film is connected on the outer surface of an upper shell, and a first vent valve is arranged on the upper shell covered by theelastic film. A second vent valve is arranged on the elastic film, and a lower shell is equipped with a compressed air bag, a data acquisition module, a controller, a GPS signal transmitting-receiving module and a battery. A pipeline leakage detection system comprises the pipeline leakage detection device put in a pipeline, and an intermediate server and a terminal intelligent server which are arranged outside the pipeline. Based on the above device and the system, the present invention also relates to two different pipeline leakage detection methods. The beneficial effects of the present invention are that the pipeline leakage detection device is small and variable in size and simple in structure, is simple to use, and can go down and rise flexibly; the system is easy to deploy and monitor and is not easy to interfere, is high in detection efficiency and leakage detection positioning precision; the two leakage detection methods are simple to operate, and can detect the positions of all leakage ports rapidly.

The invention discloses an inflatable over-water lifesaving device and a lifesaving method. The lifesaving device comprises a floating body floating on the surface of water as well as an underwater propulsion mechanism, a laser radar and a controller which are arranged on the floating body; the propulsion mechanism is used for enabling the floating body to move; the laser radar is used for acquiring position information of to-be-saved person; the input end of the controller is connected with the laser radar; the output end of the controller is connected with the propulsion mechanism and a gasgenerator separately; and the controller drives the propulsion mechanism to operate and or triggers the gas generator to turn on according to the position information of the to-be-saved person. Through the inflatable over-water lifesaving device and the lifesaving method, which are provided by the invention, the condition that an unmanned boat cannot be close to man overboard under interference such as wave flow is responded, an inflatable over-water lifesaving device is controlled to arrive at the place near the to-be-saved person, and an airbag on the floating body is controlled to be expanded, so that the floating center of the floating body is changed and the man overboard who is in a coma or loses physical power can be salvaged automatically.

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 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 discloses a collection device for fine-grained silting deposits in modern lakes, which belongs to the technical field of deposit collection and comprises a suspension cabin, a collector is connected to the lower part of the suspension cabin, and a weight-increasing component is connected to the lower part of the collector. An anchoring system is connected to one side of the suspension cabin. By setting the suspension cabin, the position of the collector in the water can be adjusted, and by cooperating with the weight-increasing parts to ensure that the collector is balanced and upright in the water, preventing the mixing of coarse particles formed by underwater disturbance; by setting the collector and anchoring system, both It can make the collection frame have strong flexibility and anti-collision ability, and can also fix the position of the collection system, and monitor it in real time through GPS locator to ensure the singleness and stability of the source of sedimentation.

A sewage treatment intelligent detection system disclosed by the present invention comprises a floating table, a detection frame plate and a ball anchor, the detection frame plate is installed in the middle of the bottom end of the floating table, the ball anchor is movably arranged at the bottom end of the detection frame plate, and an electric energy supply system is arranged on the floating table. The first water quality sensor and the second water quality sensor are used for detecting the water quality conditions of the upper portion and the bottom of the sewage pool respectively, feedback is made respectively, and sewage is homogenized under the action of the homogenizing assembly and then fed into the U-shaped channel to be detected; when a probe part of the first water quality sensor extends out of the U-shaped channel, sewage conditions in different states can be detected, no impurity is attached to the probe part and the U-shaped channel, sewage sampling can be performed again during detection each time, accurate detection of the probe is ensured, detection can be continuously performed after re-sampling, measurement errors are reduced, and the detection efficiency is improved. After measurement, the mean values detected at the same time are taken, and the obtained three groups of detection values can be compared, so that accurate water quality detection information can be conveniently obtained.

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 collection device for fine-grained silt sediments in a modern lake, and belongs to the technical field of sediment collection. The device comprises a suspension cabin, the lower part of the suspension cabin is connected with a collector, the lower part of the collector is connected with a weight increasing component, one side of the suspension cabin is connected with an anchoring system. By arranging the suspension cabin, the position of the collector in water can be adjusted, the collector is guaranteed to be balanced and upright in water in cooperation with the weight increasing component, and coarse particles formed by underwater disturbance are prevented from being mixed in; and by arranging the collector and the anchoring system, a collecting frame can have high flexibility and collision resistance, the position of a collecting system can be fixed, real-time monitoring is achieved through a GPS positioner, and the singleness and stability of the source of silt falling and settling are guaranteed.

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.

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.