314 results about "Buoyant force" patented technology

The invention discloses a marine geological sediment sampling device and method, and belongs to the technical field of sampling equipment. The marine geological sediment sampling device comprises a bottom frame, wherein one side of the bottom frame is a containing box, and the other side of the bottom frame is an inserting rod; the power box is arranged in the containing box through a sliding sealing structure, and a power element is installed in the power box. A sampling pipe in transmission connection with the power element, a floating assembly installed on the power box and an air pipe in the power box are installed among the multiple insertion rods, when the pressure in the cavity reaches a set value of a pressure valve, the valve is opened, compressed air is sprayed to stress blades through the air pipe to drive a first sliding ring to rotate, a floating plate rotates synchronously, and auxiliary propulsive force is generated; the propelling direction is consistent with the sinking direction of the device, the function of accelerating sinking is achieved, seawater resistance is effectively resisted, meanwhile, in a shallow sea area or a deep sea area, the overall buoyancy of the device is changed by dynamically adjusting the inflation volume in the floating plate, and the device can be prevented from violently shaking or inclining due to too fast sinking.

An apparatus and a method for identifying the identity and position of a chess-like game piece by means of weight are provided. By means of a solution buoyancy module, a photoelectric sensing component, and a weight sensing chip circuit in the apparatus, the weight of the piece is calculated based on buoyant force, and the identity of the piece and the real-time position thereof on a board are determined based on the calculated weight.

The invention provides a water tank air tightness detection method and equipment, and the method comprises the following steps: S1, plugging all external interfaces of a to-be-detected water tank, and completely immersing the to-be-detected water tank in water; and S2, after standing for a period of time, measuring the buoyancy applied to the water tank, comparing the buoyancy with a preset buoyancy value, if the measured buoyancy is smaller than the preset buoyancy value, determining that the sealing performance is poor, otherwise, determining that the sealing performance is good. According to the scheme, the buoyancy borne by the water tank can be transmitted to the pressure detection element through the second connecting arm, and if the air tightness of the water tank is good, the buoyancy borne by the water tank is large, and the detection value of the pressure detection element is large; if the air tightness of the water tank is poor, the buoyancy borne by the water tank is small, and therefore the detection value of the pressure detection element is small, the air tightness condition of the water tank can be directly judged through the detection value of the pressure detection element, an air supply system does not need to be additionally arranged, the requirement for the detection device is low, and therefore the structure of the detection device is simpler.

The utility model relates to the technical field of anti-floating anchor rods, and particularly discloses a post-reinforcement anti-floating anchor rod which comprises three reinforcing steel bars, the outer sides of the three reinforcing steel bars are sleeved with the same connecting end, a first grouting pipe is slidably connected to the interior of the connecting end, a second grouting pipe is slidably connected to the interior of the connecting end, and the first grouting pipe and the second grouting pipe are sleeved with the same connecting end. The first grouting pipe and the second grouting pipe are both located among the three steel bars, a plurality of supporting components are arranged on the outer sides of the three steel bars, and the movable cover and the first movable insertion plate are lifted through concrete and inserted into soil. And after the concrete forms the anchoring body, the first movable insertion plate is also fixed, so that the first movable insertion plate is stably inserted into the soil, and after the buoyancy of underground water is increased, the friction force between the anchoring body and the soil is increased through the first insertion plate, so that the stability of the anchoring body is enhanced.

The invention discloses an anti-floating calculation and control method for a reinforcement cage in a cast-in-situ bored pile pouring process, which belongs to the technical field of geotechnical engineering and comprises the following steps: S1, measuring the hole diameter and the pile depth of a cast-in-situ bored pile after the cast-in-situ bored pile is formed; s2, a reinforcement cage is hoisted into the cast-in-situ bored pile, and the gravity of the reinforcement cage is determined; s3, concrete is poured after bottom cleaning and slurry changing, the acting force of the concrete on the reinforcement cage is determined, and the acting force of the concrete on the reinforcement cage comprises the sum of buoyancy, viscous force and impact force borne by the reinforcement cage; s4, comparing the gravity of the reinforcement cage with the acting force of the concrete on the reinforcement cage; and S5, according to a comparison result in the step S4, a reinforcement cage anti-floating response measure is formulated. According to the method, the gravity of the reinforcement cage and the acting force of concrete on the reinforcement cage can be scientifically determined, anti-floating countermeasures of the reinforcement cage can be formulated more comprehensively and more effectively, and the method has important theoretical guiding significance for follow-up cast-in-situ bored pile construction.

A marine rail lift has a lift deck assembly configured to receive a watercraft thereupon and move between a raised position and a lowered position relative to a parent dock. A plurality of track rails connected to the side walls of a berth of the parent dock define a movement path of the lift deck assembly between the raised position and the lowered position. A plurality of retractable track pins engage the lift deck assembly to the track rails. A lift control system is operatively engaged with the lift deck assembly and configured to displace the lift deck assembly between the raised position and the lowered position. The lift control system manages the volume of air contained within one or more lift tanks of the lift deck assembly to control displacement of the lift deck assembly through buoyant force.

The invention relates to a self-adaptive fault-tolerant generalization control method for an autonomous underwater vehicle, which comprises the following steps of: considering primary and quadratic term damping effects of water, unknown constant matrixes of a mass matrix and an inertia matrix of the autonomous underwater vehicle and external interference factors; an actuator effectiveness index matrix is introduced to model the autonomous underwater vehicle into an under-actuated model, and meanwhile it is ensured that the resultant force of gravity and buoyancy is zero, and kinematics and dynamics equations of the autonomous underwater vehicle are obtained; a controller is designed based on a backstepping method, a position error and a saturation function are defined, a Lyapunov function is selected, the position error is driven to be within a preset fixed constant range, an estimation rule and a projection function are introduced for solving the problem of unknown parameters to calculate thrust and control input, and high-precision trajectory tracking control over the autonomous underwater vehicle is achieved. Compared with the prior art, the method does not need linearization or conversion dynamics, can solve the problems of fault tolerance and time-varying interference, is better in performance, and effectively improves the control precision and stability of the autonomous underwater vehicle.

The invention provides a foam surface particle stacking strength determination method and a foam stabilizing particle size distribution optimization method. The foam surface particle stacking strength determination method comprises the following steps: performing particle construction according to particle size distribution of target surface particles, uniformly distributing the constructed particles in a gridding target area at an initial moment, and endowing each constructed particle with an initial speed; repulsive force, attractive force, friction force, radial force Brown force and stress generated by the flow field action borne by each particle and the liquid phase volume fraction of each grid are determined; further determining the flow field velocity of each grid; further determining the resultant force, the dragging force and the lifting force of the gravity and the buoyancy borne by each particle; further determining the speed and the position of the particles in the next time step length; the steps are repeated until the simulation time requirement is met, and then the mechanical strength borne by the particle system is determined based on the repulsive force, the attraction force, the friction force, the radial force Brown force, the resultant force of the gravity and the buoyancy force, the dragging force and the lifting force borne by the particles.

A subsea catenary riser comprises a rigid riser pipe that is suspended from a floating support on the surface and extends through a sagbend to the seabed. A hang-off interface allows rotation or pivoting of the riser pipe relative to the support about mutually orthogonal horizontal axes. A subsea buoy is positioned on the riser pipe above the sagbend. The buoy applies buoyant upthrust force to the riser pipe via an attachment interface that allows rotation or pivoting of the riser pipe relative to the buoy about mutually orthogonal horizontal axes. In response to movement of the support, the riser pipe deflects with S-shaped curvature to vary the inclination, relative to the buoy, of the portion of the riser pipe to which the buoy is attached. The curvature comprises mutually opposed curves respectively above and below the buoy, joined by a region of inflection that coincides with the buoy.

A flotation device is provided, which comprises: a hull (1) in the form of a buoyancy chamber (1.1), wherein the front end of the hull (1) is equipped with a means (7) for securing a cord, and a cutout (5) is made at the rear end of the hull (1). The hull (1) can be made composite, consisting of the first part (17) of the hull and the second part (18) of the hull, arranged in series along the longitudinal axis of the hull (1) and connected to each other by connecting elements (19) to form of connection that provides possibility of mutual rotation of the first part (17) of the hull relative to the second part (18) of the hull in a vertical plane. The invention increases the efficiency of saving drowning people in open water and reduce mortality during rescuing.

A combined pair of hip waders and life vest device is disclosed. The device includes a buoyant upper body cover portion to cover the upper body of a user and includes a right frontal member and a left frontal member. The right frontal member, the left frontal member, and a back member include floatation devices which include detachable buoyant materials for providing buoyancy to a wearer in water. A right shoulder strap and a left shoulder strap extend from the top edges of the right frontal member and the left frontal member, respectively, to the top edge of the back member. A lower body cover portion functions as hip waders and extends below the upper body cover section. The lower body cover section or portion includes a left leg hip wader and a right leg hip wader.

The invention discloses an anti-floating buffering flexible pool for a high underground water level. According to the invention, the anti-floating problem of the flexible pool body when the underground water level is relatively high is effectively solved through the interlayer structure. The interlayer material can automatically expand when the underground water level rises to form supporting force to resist the jacking effect of water buoyancy on the pond bottom, so that the pond body is prevented from floating upwards. Therefore, the application limitation of a traditional flexible pool body in areas with the high underground water level is broken through, the application range of the flexible pool body is widened, and the flexible pool body can be applied to more areas, especially occasions with poor foundations, the high underground water level and the high requirement for the water storage capacity. The anti-floating buffering flexible pool can effectively solve the problems in coastal areas, areas with rich underground water resources, urban underground spaces and the like, and a safe and reliable water storage solution is provided for the areas.

The invention discloses a buoy seat device capable of automatically finding a bottom and locking a line. The buoy seat device comprises a bottom shell, a linkage rod, a spring, a shell and a buoy connecting seat. Fishing line locking is achieved through dislocation of the bottom shell and a line passing hole in the linkage rod, and the spring provides elastic driving force. When the fishing line is thrown, the downward gravity of the lead weight and the upward buoyancy of the buoy enable the two line passing holes to coincide to release the fishing line, the buoyancy is reduced after the buoy emerges from the water surface, the spring resets, and the two line passing holes are staggered again, so that the line locking effect is achieved. The device is simple in structure, does not need to manually adjust the buoy, can automatically complete bottom finding and line locking, is suitable for various water depth scenes, and can adapt to buoys with different lead feeding amounts by adjusting the preset elastic force of the spring.

The utility model relates to the technical field of underwater propellers, and discloses an intelligent underwater propeller which comprises a mounting block and two guide cylinders, the middle of the upper surface of the mounting block is fixedly connected with a first supporting column, the upper end of the first supporting column is fixedly connected with a floating plate, the two sides of the lower surface of the floating plate are fixedly connected with second supporting columns, and the second supporting columns are fixedly connected with the guide cylinders. And inclined supporting rods are fixedly connected to the middles of the outer walls of the two sides of the mounting block, and the sides, away from the mounting block, of the inclined supporting rods are fixedly connected with the guide cylinder. According to the intelligent underwater propeller, the floating plate is arranged, certain buoyancy is provided for the intelligent underwater propeller underwater, then the weight of the intelligent underwater propeller is reduced, the hand burden of underwater operating personnel is relieved, the grabbing capacity of the underwater operating personnel is improved through the grabbing cavity formed in the upper surface of the inclined supporting rod, and the underwater operating personnel can be protected from being damaged. The grabbing stability and safety are improved, the grabbing experience is improved, and the hand burden of underwater operators is relieved to a certain extent.

The utility model relates to a motion platform and a perovskite coating device. The motion platform comprises a platform base and a motion frame, the first guide mechanism comprises a first rail and a first air bearing, the first rail is arranged on the platform base, the first air bearing is installed on the moving frame and located between the first rail and the moving frame, and the first air bearing is used for forming an air film between the first air bearing and the first rail and bearing first air buoyancy force for supporting the moving frame on the first rail; the first pre-tightening mechanism comprises a first magnetic attraction part installed on the moving frame and a first magnetic attraction matching part installed on the platform base, and the first magnetic attraction part and the first magnetic attraction matching part generate a magnetic attraction effect so that the first magnetic attraction part can bear first magnetic attraction force opposite to the first air buoyancy force in direction.

The invention discloses a mine grouting device suitable for a soft stratum. The mine grouting device comprises a grouting pipe, a plurality of grouting sprayers and a plurality of swinging anchor flukes, wherein the grouting sprayers are slidably connected with the pipe wall of the grouting pipe and can slidably stretch out and draw back in the radial direction, and the swinging anchor flukes are pivotally connected with the pipe wall and can be supported by the grouting sprayers. The grouting nozzle and the swing anchor fluke are retracted in a normal state and then extend out and swing out respectively during grouting, so that the influence on the hole wall of a grouting drill hole in a soft stratum is reduced, the defect that a large number of cracks are generated around the grouting drill hole in the soft stratum is overcome, and the grouting efficiency is improved. The situation that the soft stratum collapses around the grouting drill hole due to the fact that the anchor flukes are exposed can be effectively avoided, stretching of the grouting spray head completely depends on impact force or buoyancy provided by grout, swinging of the swinging anchor flukes completely depends on the driving effect of the grouting spray head, and extra power is not needed.

The invention provides a control device based on a PLC transformer cooling system, and relates to the technical field of control devices. The fixed seat is fixed on a transformer mounting seat, a cooling box with a rectangular box-shaped structure is fixed on the top end surface of the fixed seat, the cooling box is filled with cooling liquid, and a cover plate is fixed on the top of the cooling box; a first liquid pump is fixed to the top end face of the fixing base, a first liquid inlet pipe and a first liquid outlet pipe are connected to the first liquid pump, and the first liquid inlet pipe and the first liquid outlet pipe are both connected with a transformer cooling oil pipe. A liquid storage box, a liquid supply pipe, a guide rod and a floating block in the supplementing assembly form an automatic liquid supplementing system, and when liquid in the cooling box is reduced due to evaporation or consumption, the liquid in the liquid storage box automatically flows in for supplementing; when the liquid reaches a proper liquid level, the floating block ascends under buoyancy, the liquid supply pipe is sealed, supplement is automatically stopped, it is ensured that the cooling system is always in the optimal working state, and the risk of cooling failure caused by insufficient liquid is effectively avoided.

The invention relates to a relative position attitude calculation method for a non-contact split type satellite of a magnetic levitation stability augmentation mechanism, and belongs to the technical field of spaceflight. Establishing a load cabin position attitude kinetic equation; establishing a relative kinetic equation between the load cabin and the platform cabin; representing eight magnetic levitation forces by using a matrix FL; calculating resultant force FA formed by magnetic levitation force in a magnetic levitation geometric center; according to the resultant force FA, calculating magnetic levitation power DF magnetic acting on the mass center of the load cabin; establishing a calculation equation of the magnetic levitation force fLi, and obtaining a relational expression between the magnetic levitation force fLi and the magnetic levitation gap delta0; establishing a conversion relation between the relative pose of the load cabin relative to the platform cabin and the magnetic levitation gap delta0; the relation between the relative pose of the load cabin relative to the platform cabin and the magnetic levitation force fLi is obtained, that is, the relative pose of the load cabin relative to the platform cabin is obtained through calculation according to the magnetic levitation force fLi; according to the method, the relative position and attitude calculation problem in the process that the load cabin follows the platform cabin based on the magnetic levitation stability augmentation mechanism is solved, and a theoretical model is provided for a non-contact split type satellite following control and vibration suppression system.

A self-contained emitter assembly according to one embodiment is provided to generate and emit X-rays underwater for facilitating X-ray imaging. The self-contained emitter assembly may be operable by a user underwater and may include a float system to provide at least one of neutral buoyancy or negative buoyancy.

A method of preparing a mooring rope for use in a mooring system for a floating offshore structure. The method comprises laying the mooring rope between a buoy and a seabed anchor; and tensioning the mooring rope between a buoyancy force from the buoy and the seabed anchor, thereby elongating the mooring rope towards a worked length condition. In another aspect, there is provided a method of preparing a mooring system for a floating offshore structure. The mooring system has at least one mooring line between a buoy and a seabed anchor, and the mooring line comprises a mooring rope. The method comprises tensioning the at least one mooring line between a buoyancy force from the buoy and the seabed anchor, thereby elongating the mooring rope towards a worked length condition. Preferred embodiments include tensioning the at least one mooring rope or mooring line between a buoyancy force from the buoy and a tensioning device acting against the buoyancy force. The tensioning device may be a part of the mooring system.

The invention discloses a seabed collection system and a collected object lifting method. Belongs to the technical field of underwater collection. The seabed collection robot collects a seabed target collection object; the water surface support ship is communicated with the seabed acquisition robot through the pipe cable system; the seabed collecting robot conveys collected objects to the water surface supporting ship through the pipe cable system serving as a guide cable. According to the buoyancy principle, the air bag is inflated to enable the buoyancy of the target collected object collecting net bag to be larger than the gravity to achieve automatic floating; a pipe cable system is combined to serve as a floating cableway, and a net bag fully loaded with collected objects can be lifted to a moon pool of a water surface supporting ship. The system also adopts an intelligent automatic control technology, and automatically completes the inflation and replacement of a net bag and the recovery of collected objects through the cooperation of an underwater mechanical claw and an on-board collection mechanical claw. The device is suitable for seabed collected objects which have high requirements on the lifting process and are sensitive to impact force, and the working efficiency and the continuity of the system can be greatly improved.

The present invention discloses a car lifeboat that automatically inflates using high-pressure liquid gas, comprising a lifeboat body, a front end face fixedly connected to the left side of the lifeboat body, side end faces fixedly connected to the two sides of the lifeboat body, and a rear end face fixedly connected to the right side of the lifeboat body. By designing two emergency inflation devices on the inner and outer surfaces of the car lifeboat, it can be inflated quickly. The inner part adopts a built-in high-pressure liquid gas method, which automatically fills the gas within eight seconds. The external high-pressure liquid gas method mainly has a connection port for connecting the external high-pressure liquid gas installed on the car lifeboat. In an emergency, after opening the car lifeboat, take out a special high-pressure liquid gas cylinder and connect it to the corresponding connection port, turn on the switch, and it can be opened in ten seconds. After the inflation is completed, the car lifeboat will generate buoyancy, and the car will float up according to the rising water surface. An encirclement is formed around the lifeboat to avoid collision with surrounding objects, avoid the loss of the car, and well protect the car.

The invention discloses a device and a method for synchronously measuring static and dynamic vertical displacements of a structure. The device comprises a test end container, a reference point container, a communicating pipe, a fluid medium, a displacement meter, an inertial mass block and a pressure sensor, the testing end container and the reference point container are connected through a communicating pipe, a valve is arranged on the communicating pipe, the inertial mass block is arranged in the testing end container, the upper end and the lower end of the inertial mass block are connected with the testing end container through elastic elements, and fluid media are contained in the testing end container and the reference point container. The fluid medium is set to enable the gravity borne by the inertial mass block to be equivalent to the buoyancy, and the displacement meter is set to measure and obtain the vertical displacement value of the inertial mass block; the pressure sensor is used for testing the pressure difference value caused by the height difference of fluid media in the test end container and the reference point container at the two ends of the communicating pipe. The system has the remarkable advantages of being rapid and efficient in installation and arrangement, good in structural form and natural environment adaptability, good in economical efficiency and the like.

The present application discloses a powder granulation mechanism and an electrode production system, wherein the powder granulation mechanism comprises an inner cylinder, an outer cylinder, a suspension force supply device and a stirring device arranged in the inner cylinder, the inner cylinder is used to contain powder and binder, the inner cylinder and the outer cylinder are arranged at intervals from each other in their own radial direction and form a circulation channel, a plurality of first sieving holes are arranged through the wall of the inner cylinder, and the suspension force supply device is connected to the circulation channel; wherein the suspension force supply device can provide suspension force to the circulation channel. According to an embodiment of the present application, the powder granulation mechanism can mix and crush the mixture of powder and binder in the inner cylinder through the stirring device, the crushed particle structure flies into the circulation channel through the first sieving hole, and rolls and grinds under the action of the suspension force to improve the sphericity. The powder granulation mechanism can reduce the possible aggregation between the particle structures and improve the fluidity of the particle structure to improve the quality of the electrode.

A mooring system may include a plurality of mooring weights, which can include a first mooring weight and a second mooring weight spaced apart from each other, for placement on a floor surface of a body of water. A mooring system may also include a cable or chain extending between and coupling to the first mooring weight and the second mooring weight. The first mooring weight can be coupled to an offshore vessel via a second cable. Additionally, the first mooring weight can apply a vertical force on the floor surface that is equivalent to and counteracts a maximum vertical buoyancy force exerted by the offshore vessel on the second cable. The second mooring weight can solely apply a horizontal friction force on the floor surface of the body of water.

The utility model relates to the technical field of anti-floating anchor rods, and discloses a prestress anti-floating anchor rod which comprises a bottom anchoring plate, three rod bodies and a first triangular plate, the number of the rod bodies is three, and the three rod bodies are fixed to the upper end face of the first triangular plate in an annular array mode. The bottom reinforcing piece is arranged on the lower end face of the bottom anchoring plate and used for reinforcing the bottom end of the bottom anchoring plate; the rod body reinforcing piece is telescopically arranged on the rod body and is used for reinforcing from the upper section of the rod body; the three rod bodies are fixed to the first triangular plate in the annular array mode and matched with the first triangular plate and the second triangular plate, by means of the stability of a triangle, the capacity of resisting building foundation buoyancy can be improved, and the overall stability of the structure is remarkably enhanced; the pressure promotes the connecting column to rise, the top block extrudes the movable block to move outwards to be inserted into a side soil layer, the bottom stability is improved, and the anti-floating capacity is improved.

The invention discloses an anti-floating plate displacement calculation method and system considering soil body distribution rigidity and material nonlinearity. The calculation method comprises the following steps that upward buoyancy borne by a tunnel segment below an anti-floating plate is calculated; calculating the maximum load of the floating force diffused to the overlying soil of the tunnel segment; calculating the equivalent uniform load of the anti-floating plate based on the non-uniform diffusion of the maximum load of the overlying soil body; and based on the elastic foundation beam theory, calculating the displacement of the anti-floating plate by considering the soil body distribution rigidity and the nonlinear coefficient of the anti-floating plate material. According to the method, the characteristics of soil body distribution rigidity and material nonlinearity are combined, and the real displacement condition of the anti-floating plate under the complex working condition can be reflected more accurately.

This invention discloses a passive buoyancy compensation method using gas-liquid mixing for profiling buoys, belonging to the field of buoyancy adjustment technology for marine observation buoys. This method constructs a passive buoyancy compensation system containing gas and liquid chambers, and adjusts the gas-liquid volume ratio to achieve linear and continuous adjustment of the system's equivalent compressibility coefficient, dynamically matching the compression characteristics of seawater at different depths. A mathematical model of the overall force on the buoy is established to determine system design parameters. Sensors are deployed to collect buoy depth and axial acceleration data, calculate motion parameters, predict and estimate the depth, and compare it with the target depth. When the deviation threshold is exceeded, an active fine-tuning judgment process is initiated. Active adjustment is disabled during the inertial-dominated phase, and during the non-inertial phase, the controller sends a fine-tuning command to the active buoyancy system to execute reverse buoyancy adjustment. The passive buoyancy compensation method using gas-liquid mixing provided by this invention can achieve low-power buoyancy control with passive adjustment as the primary method and active adjustment as a secondary method, effectively extending the underwater operational life of the buoy.

The utility model relates to the technical field of swim rings, in particular to an anti-water-inhaling plastic swim ring for children, which comprises a swim ring air bag, the lower surface of the swim ring air bag is fixedly connected with a seat plate, two through holes are arranged in the seat plate, the outer wall of the seat plate is fixedly connected with an auxiliary air bag, and the outer wall of the auxiliary air bag is fixedly connected with the swim ring air bag. The number of the auxiliary air bags is two, a protection structure is arranged on the upper surface of the swim ring air bag, and the protection structure comprises a first bandage and a second bandage. According to the swimming ring air bag, the two feet of a child penetrate through the through holes, the child sits on the seat plate, the protection structure is bound to the upper body of the child to be fixed, meanwhile, the two auxiliary air bags are used for suspending the swimming ring air bag to increase buoyancy, the swimming ring air bag can stably suspend on the water surface, and the situation that the child inhales water due to rollover of the swimming ring air bag is prevented; the protection structure plays a role in protecting children and prevents the children from falling from the inside of the air bag of the swim ring and inhaling water.

The invention discloses a device for preventing a basement bottom plate from floating and leaking, and relates to the technical field of basement anti-floating. A device for preventing a basement bottom plate from floating upwards and leaking comprises a water storage pond buried below a basement and further comprises a bottom cylinder connected to the bottom of the water storage pond, a water inlet pipe and a water outlet pipe. The first anti-floating plate and the second anti-floating plate are arranged on the periphery of the water storage pond respectively; the third anti-floating plate and the anti-floating pipe are arranged on the periphery of the bottom cylinder; the multiple sets of clamping jaw assemblies are arranged on the periphery of the anchor pile; foundation support is provided for anti-floating through cooperation of the anchor pile and the clamping jaw assembly, when the anchor pile penetrates through the first anti-floating plate, the second anti-floating plate, the third anti-floating plate and the anti-floating pipe, the limiting jaws of the clamping jaw assembly are unfolded under the action of the spring pieces, so that the anchor pile can abut against the anti-floating plates and the lantern rings when moving upwards, the upward moving tendency of a basement due to buoyancy is hindered, and the anti-floating effect of the basement is improved. And through a multi-direction force constraint mechanism, the problem of loosening possibly caused by single-direction stress of the anchor pile is effectively solved, and the anti-floating reliability is further improved.