80results about How to "Guaranteed buoyancy" patented technology

The invention relates to a machine fish, wherein it is characterized in that: it comprises a fish head module sealed, left and right chest fin modules, at least two driving modules, and caudal fin; said fish head module has controller and main motor for floating the left and right chest fin modules whose main axles via movable sealing device are connected to the main motor; the left and right chest fin modules both have assist motors to drive the chest fins up and down; the axle of chest fin via the movable sealing device is connected to the assist motors; the driving module via the swing rod is connected; the first driving module via the head-tail connector is fixed on the back of fish head module; the caudal fin via the connector is connected to the back of driving module. The invention can be used in underwater detection, etc.

The invention discloses a rescue capsule which comprises a spherical capsule body, an operating device, a power device, an air exchange device and a living facility, wherein the operating device, the power device, the air exchange device and the living facility are arranged in the capsule body; and the operating device is connected with the power device and the air exchange device respectively. The whole rescue capsule is spherical; a shell is made by glass steel and anti-corrosion steel material; waterproof and fireproof cotton is used for filling a middle interlayer, so that fire can be prevented, and the floatage of a sphere can be guaranteed; even if the shell is cracked, the floatage of the waterproof cotton can still support the whole sphere, and the sphere cannot sink down; a balance facility is arranged at the bottom of the sphere, so that the sphere can permanently and perpendicularly float on a water surface and can be prevented from being turned over by sea waves; the operating device, the power device, the air exchange and the lifting facility are arranged inside the sphere; and under an emergency condition, dozens of people can synchronously enter the rescue capsule and safely live in the capsule body.

The invention discloses a marine wind turbine generator system and a floating foundation thereof. The floating foundation comprises a foundation main body (3). The foundation base main body (3) comprises a first outer frame (34) and a first airbag (31) arranged in the first outer frame (34). By means of the floating foundation, the manufacturing cost of the foundation main body (3) can be significantly reduced, high enough strength is provided for supporting the whole marine wind turbine generator system, the economy and durability are improved, meanwhile, load transmitted from the top to bottom can be reliably transmitted to seawater to provide buoyancy for the marine wind turbine generator system, and the stability of the marine wind turbine generator system is improved.

The invention discloses an above-water drifting buoyant apparatus, belonging to a temporary emergency life-saving device used in water. The invention is a cirque life buoy; the bottom of the cirque life buoy is a fully sealed soft body layer; the middle of the soft body layer is provided with a pair of water trousers with diving shoes; the upper part of the cirque life buoy is a transparent waterproof layer with two halves supported by frameworks; the middle framework of all the half frameworks are provided with waterproof and intake-proof mechanisms symmetrical at the left and the right. The invention sufficiently utilizes the life buoy in the prior art, thus ensuring the due floatage of life buoy; the transparent waterproof layer supported by the framework can prevent the storm waves from damaging human body; an intake device can ensure the air supply for the people and prevent the water from entering through the venthole. The invention has the advantages of convenient and reliable life-saving, bearing great storms and having comparative weatherability.

The invention relates to a ship form for a semi-submersible type hoisting pipe-laying ship. A ship body comprises an upper platform, a plurality of upright columns and two lower floaters, wherein the upright columns are fixed at the two sides under the upper platform and are arrayed in parallel; the lower floaters are fixed at two sides, are arrayed in parallel and are connected to the upright columns; and a crane is fixed on the tail part of the upper platform. The ship form is characterized in that a centrum structure expanding outwards from bottom to top is formed by the joints of the upper parts of the upright columns on the stem and the upper platform; the outer sides of the lower edges of the upright columns are matched with the deck molded lines of the lower floaters; the upper sides of the upper edges of the upright columns are aligned with the side boundaries of the upper platform; the joints between the bottoms of the upright columns and the lower floaters are in bulbous bow arch-shaped natural transition; and after being connected in such a manner, the ship form of the stem is of a streamline structure. The ship form for the semi-submersible type hoisting pipe-laying ship can be used for maximally reducing the water resistance and improving the routing speed of the pipe-laying ship under the condition of ensuring the structural strength and buoyancy of the ship body.

The invention relates to a floating island monomer which comprises floating island plants and a packing substrate layer which is used for bearing the floating island plants and providing root spreading of the floating island plants. The packing substrate layer is a palm fiber board formed by pressing of palm fiber. The invention further relates to an ecological floating island applying the floating island monomer. Compared with the prior art, the floating island monomer is good in buoyancy and favorable for establishment of a micro environment ecosystem, and meanwhile, good anti-storm resistance can be achieved by the floating island monomer. In addition, heat preservation effect can be achieved for roots of the floating island plants, freeze resistance capability of the floating island plants is improved, and security for the winter is achieved; the ecological floating island composed of the floating island monomer is simple and stable in structure, convenient in processing and installation and good in anti-storm resistance of the total buoyancy clutch.

The invention discloses an ecological landscape floating island capable of supplementing dissolved oxygen in water. The ecological landscape floating island comprises a disc-shaped outer shell and a gas collecting hood fixed at the water bottom, wherein the outer shell is filled with soil having earthworms and planted with various herbaceous plants, the gas collecting hood has a trumpet-shaped structure with a large downward opening, a disc-shaped positioning plate is arranged at the bottom of the outer shell, the center of the positioning plate projects upwards and is fixedly connected to theouter shell, an annular and hard gas shell and a floating block with a density far smaller than the density of water are fixed to the lower wall of the positioning plate, and a plurality of water return holes communicated to the outside are formed in the bottom of the gas shell. According to the invention, the photovoltaic panel continuously absorbs light energy and stores the light energy in thestorage battery in the daytime, and the storage battery supplies power to the light supplementing lamp at night, so that moss can continuously perform photosynthesis and generate water-soluble oxygenunder the action of the light supplementing lamp so as to increase the oxygen content in the water, ensure the stable growth of the moss and continuously supply the oxygen to the water body.

The invention discloses a seat post type underwater working device, which comprises a seat pipe sliding device, a voltage withstanding silo, a propeller and a brake device; the seat pipe sliding device is seated at the outer wall of an underwater pipeline, and the voltage withstanding silo is fixed at the top part of the seat pipe sliding device; the propeller is fixed on the voltage withstandingsilo, and the brake device comprises a brake pawl and a driving device for opening and closing the brake pawl; the brake pawl is hinged at the end part of the seat pipe sliding device. The voltage withstanding silo is used as a floating force provider of the underwater work of the whole device; the seat pipe sliding device and the loaded working mechanism are used as the balance weight, thus thecenter of buoyancy of the whole device is upwards and the gravity thereof is downwards. After the seat post type underwater working device is overturned under the disturbance of the external force, the device can automatically return the vertical state under the effect of the gravity and the center of buoyancy, the working device is not fallen down during the sliding process; when the seat pipe sliding device finds that one place of the pipeline has defect during its sliding along a seabed pipeline, the seat pipe sliding device controls the propeller to stop working and controls the brake pawlto hold the outer wall of the pipeline tightly, thus the whole device is parked at the vicinity of the detect position, and the defect position is repaired.

The invention belongs to the technical field of unmanned boats, and particularly discloses a posture-adjustable flexible double-body unmanned boat. The posture-adjustable flexible double-body unmannedboat comprises a power propelling device, wherein the two sides of the power propelling device are provided with symmetrical double-air-cushion type cylindrical supporting body devices; a spring damping device connected with a control device is arranged on the power propelling device, and a pair of telescopic devices connected with the double-air-cushion type cylindrical supporting body device isarranged on the power propelling device; and the two sides of the power propelling device are provided with the symmetrical double-air-cushion type cylindrical supporting body devices, so that the sailing stability of the unmanned boat is ensured; the power propelling device and the double-air-cushion type cylindrical supporting body devices are connected through a flexible structure, the stability of the unmanned boat is improved, the tail of a deck is connected with the telescopic devices, the navigation speed and the posture can be adjusted at any time, the adjustability of the unmanned boat is more flexible, the design of the spring damping device plays a good role in buffering and damping a control platform, and the abrasion between the precise parts on the control platform is reduced.

The invention discloses an anti-floating bag type positioning grouting anchor rod for an underwater tunnel and a construction method of the anti-floating bag type positioning grouting anchor rod. The anti-floating bag type positioning grouting anchor rod comprises a bag type positioning grouting anchor rod foundation main body and a positioning grouting device; the bag type positioning grouting anchor rod foundation main body comprises a bag, a perforated pipe and a pressure sensor; the positioning grouting device comprises an electromagnet limiting stopper, a grouting guide pipe and a displacement sensor; the bag serves as a container for containing later grouting liquid, and grouting space is large; the bag is large in telescopic range, small in size without grouting, and rapid and convenient to construct; steel bars are bundled and connected with external flexible pipes, manufacturing is easy, and construction cost and construction period are saved; rapid positioning grouting is achieved through the electromagnet limiting stopper, and grouting amount and the electromagnet limiting stopper are more accurately controlled through the displacement sensor and the pressure sensor. According to the anti-floating bag type positioning grouting anchor rod for the underwater tunnel and the construction method of the anti-floating bag type positioning grouting anchor rod, the anti-floating bag type positioning grouting anchor rod is convenient to install and construct, the effect of preventing and treating a floating problem of the underwater tunnel is remarkable, and the anti-floating bag type positioning grouting anchor rod has wide engineering application prospects.

The invention discloses a super-long weather-resistant surface photovoltaic platform system and an installation method thereof. The system includes a connecting floating body, a support floating bodyand a photovoltaic module which are arranged above that connecting floating body. The lower end of the support floating body is inserted and matched with the hollowed-out part of the connecting floating body, and the upper and lower ends of the photovoltaic module are respectively fixedly connected with the support floating body and the connecting floating body through an upper connector and a lower connector; the connecting floating bodies are arranged in rows and columns, and the connecting floating bodies between adjacent rows and columns are connected with the walkway floating body. According to the invention, the middle part of the connecting floating body is subjected to a hollowing out process, under the premise of satisfying the support of the photovoltaic module and the running buoyancy of the power station, the connecting floating body provided by the invention enlarges the area of the water body contacting the air, improves the light transmittance of the whole floating bodyplatform system, ensures the normal growth of aquatic organisms, and is favorable for the popularization of the surface photovoltaic power generation system. The hollowed-out treatment of the connected floating body also improves the hydrophilicity of the photovoltaic module, which can effectively ventilate and cool the module, thereby improving the power generation efficiency.

The invention discloses a fishing diving lamp with an opened hollow structure. The fishing diving lamp comprises a cylindrical lamp body provided with a transparent cylindrical cavity, an internal shell and a lamp holder shell provided with openings at two ends. The thicker end opening of the internal shell is buckled with one end opening of the lamp holder shell in a sealed manner to form a hollow sealed cavity, the buckled connection of the internal shell and the lamp holder shell is fixed to the end face of one end of the hollow cylindrical lamp body, and the internal shell is located in the cylindrical cavity of the cylindrical lamp body; an input cable enters the sealed cavity to connect to a power supply component through the other end opening of the lamp holder shell; the outer surface of the cylindrical lamp body is fixedly provided with a circuit board and a sealed lamp cover, and the circuit board is provided with a plurality of LED illuminating elements. Thus, the fishing diving lamp has the advantages that energy consumption is lowered, energy saving effect is significant, large quantity of diesel can be saved, large cabin space is emptied, fish cabin space can be enlarged, radiating effect is fine, service life is long, lighting can be implemented at 360 DEG C, and the lighting area is large.

The invention discloses a fishing diving lamp with an opened hollow structure. The fishing diving lamp comprises a cylindrical lamp body provided with a transparent cylindrical cavity, an internal shell and a lamp holder shell provided with openings at two ends. The thicker end opening of the internal shell is buckled with one end opening of the lamp holder shell in a sealed manner to form a hollow sealed cavity, the buckled connection of the internal shell and the lamp holder shell is fixed to the end face of one end of the hollow cylindrical lamp body, and the internal shell is located in the cylindrical cavity of the cylindrical lamp body; an input cable enters the sealed cavity to connect to a power supply component through the other end opening of the lamp holder shell; the outer surface of the cylindrical lamp body is fixedly provided with a circuit board and a sealed lamp cover, and the circuit board is provided with a plurality of LED illuminating elements. Thus, the fishing diving lamp has the advantages that energy consumption is lowered, energy saving effect is significant, large quantity of diesel can be saved, large cabin space is emptied, fish cabin space can be enlarged, radiating effect is fine, service life is long, lighting can be implemented at 360 DEG C, and the lighting area is large.

The invention relates to a lifesaving airbag for an automobile falling into water. The lifesaving airbag comprises a shell, a liquid storage chamber, a reaction chamber, an air bag, a large spring, alarge piston, mixed liquid, a small piston, an ejector rod and a blocking rod; the liquid storage chamber is communicated with the reaction chamber through a first connecting pipe; the reaction chamber is communicated with the air bag through a second connecting pipe, a flow guide pipe is arranged in the reaction chamber and placed in the reaction chamber, one end of the flow guide pipe is connected with the first connecting pipe, the other end of the flow guide pipe is closed, a certain number of small holes are formed in the flow guide pipe, and sodium peroxide and manganese dioxide powder are contained in a cavity between the reaction chamber and the flow guide pipe; the front section of the breathing tube is inserted into the air bag, a protective sleeve is connected to the breathing tube, and latticed air holes are formed in the outer end face of the protective sleeve. According to the lifesaving air bag for the automobile falling into water, after the automobile falls into water,the air bag provides oxygen for people falling into water, meanwhile, the air bag provides buoyancy for people falling into water, and the two problems that people escape and swim ashore in an existing falling-into-water accident are solved.

The invention discloses a honeycomb core mounting construction method. The honeycomb core mounting construction method comprises the steps that S1, a mold plate is erected; and S3, a honeycomb core is placed on the mold plate, and the S2 is further included and comprises that on the mold plate, a bottom restraint is arranged for the honeycomb core, wherein the S2 is executed between the S1 and the S3 or executed after the S3; when the S2 is executed between the S1 and the S3, the S2 is executed as follows, a surrounding edge is arranged on the periphery of the mounting position of the honeycomb core, and therefore after the honeycomb core is placed on the mounting position, all sides of the periphery of the honeycomb core make contact with the inner side of the surrounding edge; when the S2 is executed after the S3, the S2 is executed as follows, the surrounding edge is arranged on the periphery of the honeycomb core, and all sides of the honeycomb core make contact with the inner side of the surrounding edge; the surrounding edge is detachably connected with the mold plate. According to the construction method, the honeycomb core can be reliably restrained, and meanwhile, the dependency of stability of the position of the honeycomb core on the connecting strength of the honeycomb core and a reinforcing mesh can be weakened.

The invention discloses a drifting type seawater transparency automatic measuring device and transparency measuring method.The drifting type seawater transparency automatic measuring device comprises a supporting frame, a sealing shell, a light attenuation channel and a communication antenna, a power supply module and a control module are installed above the supporting frame, and the control module comprises a controller, a GPS module and a communication module; the two ends of the light attenuation channel are respectively provided with a light sensor, a light intensity collecting and receiving module and an LED lamp to form a detection module. Transparency analysis performed by adopting the device comprises measurement preparation, light intensity measurement and transparency analysis calculation, the light intensity is transmitted to the controller through the light intensity acquisition and receiving module, and the transparency is calculated according to the light intensity through a regression inversion analysis algorithm. The method is high in measurement accuracy; solar energy is used for supplying power, and the seawater transparency can be continuously and automatically monitored for a long time along with the drifting of ocean current; by arranging the ultraviolet lamp, the light attenuation channel, the LED lamp and the light sensor can be killed, and the situation that the test result is affected due to attachment of microorganisms is avoided.

The invention discloses a rescue capsule which comprises a spherical capsule body, an operating device, a power device, an air exchange device and a living facility, wherein the operating device, the power device, the air exchange device and the living facility are arranged in the capsule body; and the operating device is connected with the power device and the air exchange device respectively. The whole rescue capsule is spherical; a shell is made by glass steel and anti-corrosion steel material; waterproof and fireproof cotton is used for filling a middle interlayer, so that fire can be prevented, and the floatage of a sphere can be guaranteed; even if the shell is cracked, the floatage of the waterproof cotton can still support the whole sphere, and the sphere cannot sink down; a balance facility is arranged at the bottom of the sphere, so that the sphere can permanently and perpendicularly float on a water surface and can be prevented from being turned over by sea waves; the operating device, the power device, the air exchange and the lifting facility are arranged inside the sphere; and under an emergency condition, dozens of people can synchronously enter the rescue capsule and safely live in the capsule body.

The invention discloses an unfolding method of wings of a sea-land-air triphibian model airplane, and belongs to the technical field of model airplanes. According to the technical scheme, each second bracket is of an extendable and retractable structure, when the second bracket contracts, a fourth bracket hinged with the second bracket rotates clockwise, and a third bracket hinged to two ends of the fourth bracket carry out clockwise rotation in a following manner; and meanwhile, a fifth bracket hinged with the third bracket rotates anticlockwise, a sixth bracket connected with the fifth bracket rotates anticlockwise, and then a corresponding wing is unfolded. The wings of the model airplane are designed to be of the extendable and retractable structures, so that the flexible unfolding and folding of the wings are realized, and then the interestingness of the model airplane is increased.

The invention relates to an anti-overturning ship. The anti-overturning ship comprises a ship body, a partition is arranged on the lower portion inside the ship body, a sealing cabin is formed between the partition and the ship bottom and is filled with light materials, and a floating plate is fixed around the outer periphery of the lower portion of the ship body. When the ship body is collided with submerged reef, seawater is stopped from entering the cabin by plastic foam, water cannot enter the cabin, buoyance of the ship is not reduced and the ship cannot sink. Even if the ship overturns, water cannot enter the cabin of the ship, certain buoyance of the ship is kept to keep the ship not sinking into the seedbed, and advantageous conditions are created for escape and salvage repair of people. Meanwhile, the floating plate is fixed around the periphery of the bottom of the ship body, and buoyance of the ship during navigation is increased to prevent overturning of the ship.

The invention discloses a retractable folding wing and belongs to the technical field of wing design. The retractable folding wing comprises a first support and a second support which are hinged on one side of a machine body. The end, away from the machine body, of the first support is hinged to the ends, close to the machine body, of a third support and a fourth support, the end, away from the machine body, of the second support is hinged to the end, close to the machine body, of the fourth support, the end, away from the machine body, of the third support is hinged to the end, close to the machine body, of a fifth support, the end, away from the machine body, of the fourth support is hinged to the ends, close to the machine body, of the fifth support and a sixth support, the end, away from the machine body, of the sixth support is connected with the fifth support, the second support is of a retractable structure, the side wall of the second support is hinged to a driving element, andthe driving element is arranged on the machine body. The supports are connected in a hinged mode, one support is controlled to stretch and retract so as to drive other supports to move, and the wingis flexibly stretches and retracted.

The invention provides a lifebuoy with an air leakage preventing function. The lifebuoy comprises an inflatable annular main cavity, wherein an annular auxiliary cavity prepared from elastic rubber and coaxial with the annular main cavity is fixedly connected with the upper surface of the annular main cavity; the annular auxiliary cavity and the annular main cavity are connected through an air passage internally equipped with a first check valve, and circulation direction of the first check valve points to the annular main cavity from the annular auxiliary cavity; a second check valve is arranged at the upper part of the annular auxiliary cavity, and circulation direction of the second check valve points to the inside of the annular auxiliary cavity from outside. According to the lifebuoywith the air leakage preventing function, gas in the lifebuoy can be replenished, and safety of a user is guaranteed.

The invention discloses an acid mist inhibitor, and belongs to the technical field of metal surface treatment assistants. The acid mist inhibitor comprises acid mist inhibition balls and an acid mistinhibitor body, wherein the acid mist inhibition balls are filled with the acid mist inhibitor body; the acid mist inhibitor body comprises a surfactant, a molecular film-forming agent, an emulsifier,a foam stabilizer, a solvent and other components; the acid mist inhibition balls comprises outer ball bodies; and a plurality of acid mist inhibitor seepage holes are evenly formed in the surfaces of the outer ball bodies. According to the acid mist inhibitor, the acid mist inhibition balls are filled with the acid mist inhibitor body with the acid mist inhibition effect, so that slow release ofthe acid mist inhibitor body is achieved, and sufficient mixing of the acid mist inhibitor body and acid liquid is achieved in the slow release process without the need of redundant stirring and mixing operation; and arranged oleophylic and hydrophobic magnetic fibers are used for adsorbing oil stains generated in the acid pickling process, so that an oil stain isolation layer is formed on the surface of the acid liquid, the generation amount of acid mist is effectively reduced, and the oil stain inhibition effect is further improved through cooperation with the acid mist inhibitor body.

The invention provides a liftable laver cultivation device, which comprises cultivation cages arranged in an array and floating on the sea surface, wherein a lifting component is arranged below the cultivation cages; the bottom of the lifting component is connected by a traction rope to a sink body on the seabed; the cultivation cages are connected through connection ropes; the tail end of the connection ropes is connected to an anchor pile installed on the seabed. The liftable laver cultivation device has a lifting function, can air-dry the laver, is less influenced by natural environment, has good stability and a low seedling rate, and can calculate the growth rate of lavers in the cultivation process.

The invention discloses self-rescue inflatable public rest equipment suitable for beaches, comprising a sofa frame, a handle, a seat cushion, an air bag, a high-pressure steel cylinder, an inflation valve, a first inflation pipeline and a control device; the handles are arranged on both sides of the top of the sofa frame; The seat cushion is arranged above the sofa frame; the air bag is arranged at the bottom of the sofa frame; the high-pressure steel cylinder is arranged above the sofa frame and between the sofa frame and the seat cushion; the inflation valve is arranged on the first inflation pipeline; The high-pressure steel cylinder communicates with the inside of the airbag through the first inflation pipeline; the control device is arranged on the handle and controls the opening and closing of the inflation valve. The invention is applicable to the self-rescue inflatable public rest equipment on the beach. By setting the air bag, the high-pressure steel cylinder, the inflation valve and the first inflation pipeline, the user's survival probability is improved, and the self-rescue of the victims is realized.

The invention discloses three-tank pressure-stabilizing compensation non-negative-pressure water supply equipment, and belongs to the technical field of water supply equipment, the three-tank pressure-stabilizing compensation non-negative-pressure water supply equipment comprises a main water tank and a mounting rack, and the main water tank and an auxiliary water tank are fixedly mounted on the mounting rack; according to the invention, by adopting the design of the two auxiliary water tanks and the main water tank, a three-tank system is formed, and the buoyancy component is arranged in the system, so that the problem that the water pressure is reduced due to the reduction of the water quantity can be effectively solved, the residual water source in the main water tank can still be smoothly output at normal pressure without influencing the use, and meanwhile, the automatic water replenishing process in the system can be realized; meanwhile, due to the fact that the one-way water guide nozzle is arranged in the buoyancy assembly, when water is supplemented into the main water tank, water flow can be concentrated in the middle of the buoyancy assembly through the inclined face of the concave floating disc and finally flows out through the one-way water guide nozzle for water supplementing, and after the water level is increased, the water flow cannot flow back through the one-way water guide nozzle again; therefore, buoyancy borne by the buoyancy assembly can be effectively guaranteed, and normal work of the buoyancy assembly is guaranteed.

The invention discloses a buoyancy-type automatic control valve which comprises a valve body and a buoyancy-type on / off component, wherein the buoyancy-type on / off component comprises a floater for providing buoyancy, a pressure regulating chamber, a diaphragm-type valve core component, a pressure relieving channel, a seal plug, a linkage element, wherein the pressure regulating chamber is arranged above a control chamber; the diaphragm-type valve core component is arranged in the pressure regulating chamber and is used for separating the water inlet of a water outlet channel and the water outlet of a water inlet channel; the pressure relieving channel is used for communicating the pressure regulating chamber with the external environment; the seal plug is used for sealing and blocking a pressure relieving channel; the linkage element is used for linking the floater and the seal plug; the linkage element comprises a lever, a rotary shaft positioned at one end of the lever and a transmission element arranged at the middle part of the lever; the rotary shaft is arranged on the valve body; the seal plug is arranged on the lever and is positioned between the rotary shaft and the transmission element; and the transmission element drives the lever to rotate along the rotary shaft under the driving of the floater, and further drives the seal plug to perform the action of sealing and blocking the pressure relieving channel or opening the pressure relieving channel. The buoyancy-type automatic control valve provided by the invention is reasonable and compact in structure, has higher flexibility, and is difficult to damage.

The invention discloses a triphibious model aircraft, and belongs to the technical field of model aircraft design. The triphibious model aircraft comprises a machine body, wings, propellers, a vertical tail and horizontal tails, the wings are retractable wings, the inner parts of the wings realize expansion and contraction of the wings through second supports, and the second supports are of telescopic structure; the propellers are arranged on propeller brackets, and the propeller brackets are folding and telescopic brackets; the tail part of the machine body is also provided with a tail propeller; and the bottom part of the machine body is provided with a plurality of machine wheels in the length direction. According to the triphibious model aircraft, by designing the wings of the model aircraft as the retractable structures, the flexible expansion and contraction of the wings can be realized, and the interestingness of the model aircraft can be increased; and in addition, the tail propeller is arranged at the tail of the model aircraft and the machine wheels are arranged on the bottom part of the machine body, navigation in water or land of the model aircraft is convenient, and the interestingness of the model aircraft in further improved.