41results about How to "In line with the principles of mechanics" patented technology

The invention discloses a full-automatic degassing machine, comprising a degassing barrel (2), a slurry inlet (1), a slurry outlet (6), a stirring and crushing device (3) and a motor. The invention is characterized in that the full-automatic degassing machine also comprises an air cavity (7), an air inlet (8), an oil gas suction inlet (9), a lifting support sliding rod (21), a guide rail locatingplate (12), a double spindle lifting cylinder (24) and a brake friction plate (30), and a first ultrasonic wave probe (15), a second ultrasonic wave probe (16), a slurry blocking detection device (25) and an automatic drainer (26), and the double spindle lifting cylinder (24), a braking cylinder (28), the slurry blocking detection device (25), the motor (13), the first ultrasonic wave probe (15) and the second ultrasonic wave probe (16) are all connected with an electric control device (31). The full-automatic degassing machine disclosed by the invention has a reasonable design, a simple structure, economy and practicability, convenience in operation, good degassing efficiency, high efficiency, long service life and simplicity in mounting and dismounting.

The invention provides a unilateral two-arm adjustable two-way dual-power bone lengthening pressurized locking external fixator and belongs to the technical field of bone treatment instruments. The external fixator aims at solving the problem of limb shortening caused by lower limb thighbone large-segment splintered fracture long treatment concurrent large-segment bone defects. The external fixator comprises two or three or four steel nail splint linked clamps arranged between a main arm threaded rod and an auxiliary arm threaded rod side by side. The positions of upper steel nail splints and lower steel nail splints of the steel nail splint linked clamps on vertical adjustment threaded rods are adjusted through nuts. Upper end holes of connecting plates are connected with the auxiliary arm threaded rod, the positions of the connecting plates on the auxiliary arm threaded rod are adjusted through nuts on the two sides, lower end holes of the connecting plates are connected with the vertical adjustment threaded rods, chutes are formed in the main arm threaded rod, and convex plates are in sliding fit with the chutes. A power nut is arranged between every two adjacent convex plates. The positions of the convex plates on the main arm threaded rod are adjusted through the power nuts. The convex plates are fixed to the main arm threaded rod through screws after the positions are adjusted. The external fixator is mainly used for bone injury treatment.

Disclosed are a method and system for calculating a shale full-angle anisotropic brittleness index. The method comprises the following steps of calculating a VTI medium stiffness matrix coefficient; calculating a full-angle longitudinal wave speed, a full-angle fast transverse wave speed and a full-angle slow transverse wave speed; calculating a full-angle Poisson's ratio and a full-angle Young'smodulus; calculating an anisotropic brittleness index of a full-angle full-wave field; calculating a crack fracture adjustment factor of the full-angle full-wave field; calculating a brittleness indexafter calculation of the crack fracture adjustment factor of the full-angle full-wave field. According to the method, the brittleness index is calculated according to the crack fracture adjustment factor, and the angle and position of a maximum brittleness index can be found more accurately, so that calculation of the brittleness index is better in accordance with the mechanical principle and thereality.

The invention relates to a glass reinforced steel water floating swimming pool, which includes: rail, platform, primary beam, swimming pool gratings, swimming protecting board, floater, bracket, beam, pool bottom, handle elevator. The swimming pool has excellent stability, the invention uses divided structure, the assembly is easy, convenient. The bracket is triangular structure, the stress accords with the mechanical theory, the supporting is tight, the bearing force is big, it upgrades the safety, and the bracket is process for preventing corrosion, it is not easy to be rusted, durable, environment protective.

The invention relates to individual body building devices and in particular relates to an amusement body building instrument which is driven by pedals and can jump up and down, mainly solving the problems that current body building instruments are single in exercise form and can not arouse the interest of the user in body building. The bouncing vehicle is mainly composed of a front arm, a back arm, a front pull rod, forming a diamond plane link structure; a front wheel and a back wheel which are capable of unidirectional rotation are respectively arranged on the extension lines below the front arm and the back arm; a storage compression spring is arranged between the pivot joint of the front arm and the back arm and the pivot joint of the front pull rod and the back pull rod; the amusement body building instrument is further provided with indispensable components such as a steering rod and a brake. When the bouncing vehicle is in use, the movement of the user forms unidirectional pulse in the horizontal direction, which greatly increases the interest of the user in body building. The bouncing vehicle is particularly suitable for adolescent for body building.

The invention discloses a reverse triangular pipe truss, which comprises a steel structure truss, shuttle-shaped steel pipe posts (1), concrete embedded element shear keys (2) and concrete embedded elements, wherein the shuttle-shaped steel pipe posts (1) are used for supporting the steel structure truss; the steel structure truss is formed by welding a plurality of pipe trusses; the pipe trusses forming the steel structure truss comprise a plurality of mutually parallel pipe trusses A (3) arranged in the longitudinal direction and a plurality of pipe trusses B (4) arranged in the transverse direction; the upper end of each shuttle-shaped steel pipe post (1) is connected with a connecting part of the corresponding pipe truss A (3) and the corresponding pipe truss B (4), and the lower end of each shuttle-shaped steel pipe post (1) is connected with the corresponding concrete embedded element shear key (2); and each shuttle-shaped steel pipe post (1) is inclined towards the inner side of the steel structure truss. The invention also discloses a construction method of the reverse triangular pipe truss. The reverse triangular pipe truss and the construction method of the reverse triangular pipe truss have the beneficial effects that a large-span great-height space system can be formed; the shuttle-shaped steel pipe posts are used, so that the stability is high; the building appearance is elegant; and the whole body is light, ingenious, graceful, attractive and elegant.

The invention relates to a step type egg laying infant caring algal reef, which comprises an attaching base plate, a connecting component and an auxiliary accessory, wherein the attaching base plate is of a polygonal structure; a light transmission window is formed in the center of the attaching base plate; the attaching base plate comprises a plurality of structure frame bodies; the structure frame bodies are in sequential and separated arrangement in the vertical direction, the base plate attaching outer periphery diameter is gradually increased from top to bottom; the tower-shaped structure is formed; the connecting component is arranged on the outer side surface of the structure frame bodies and is fixedly connected with the outer edge of the attaching base plate; the auxiliary accessory comprises a mesh net and an attaching rope; the mesh net is arranged on the light transmission window; the periphery edge of the mesh net is connected with the attaching base plate; the attaching rope is arranged between the two adjacent attaching base plates. The step type egg laying infant caring algal reef provided by the invention has the advantages that the integral structure is complicated; the step type egg laying infant caring algal reef is applicable to a sea region with the attached alga for growth; the formed complicated space structure and the multifunctional attaching base body structure can provide the protection and egg lying function for the fish; the step type egg laying infant caring algal reef is applicable to the inshore sea area egg lying field operation.

The invention discloses a patella inferior pole fracture internal fixing device and a screw fixing method, the patella inferior pole fracture internal fixing device comprises an arc-shaped fixing plate, the arc-shaped fixing plate is attached to a patella; effectively wraps and fixes the subpatellar comminuted fracture block and limits the displacement of the subpatellar comminuted fracture block,and meanwhile, tightly contacts the patella body with the subpatellar comminuted fracture block and pressurizes and fixes the patellar body; the locking between the screw and the steel plate can effectively improve the pull-out resistance of the screw, so that the stability of the fracture block and the internal fixation device is further enhanced, and the looseness and failure of internal fixation are reduced; besides, suture tension reduction protection can be achieved, suture tension reduction stress and patellar ligament traction fracture block stress are kept in dynamic balance, fractureblock displacement or internal fixation failure during early knee bending movement is effectively avoided, meanwhile, damage interference to patellar tendons can be relieved, the tension band principle is considered, the mechanical principle is better met. And a more effective internal fixation choice is provided for treating patella inferior pole fracture, especially comminuted patella inferiorpole fracture.

The invention discloses a rotationally adjustable domestic old people rehabilitation bed, comprising a bed body, wherein bed legs are arranged on the bed body, a bedside board is arranged on a bedside, and armrest frames are arranged at two sides of the bed body; a lifting board is arranged at the bedside of the bed body; an overturning mounting board is arranged at the tailstock of the bed body by a spindle, while a built-in chute is arranged at the middle position of one end face of the overturning mounting board. When the device is used, the old people stretch the feet into a pedal to simulate the action of riding a bike so as to effectively exercise the leg muscles of the old people and perform muscle strength training, and due to the arrangement of the overturning mounting board, whenmuscle training is needed, the side mounted with the pedal is overturned, and when muscle training is not needed, the overturning mounting board can be overturned, the pedal is overturned to be belowthe bed board, while the overturning mounting board and the bed body form a whole body to be used as a bed for normal rest of the old people.

The invention discloses a ship mooring hole plate comprising a longitudinal web plate (1), a transverse web plate (2), a cover plate (3) and a transverse plate (4). The longitudinal web plate (1) and the transverse web plate (2) are crossly welded, the cover plate (3) is mounted on the longitudinal web plate (1), and the transverse plate (4) is mounted on the transverse web plate (2). The ship mooring hole plate has the advantages that mooring cost is reduced, cable using efficiency is improved and working difficulty is lowered.

This is a method it decorate the face of equipment in anticipation on reinforced concrete components. Its steps are: First according to the dig dimensions, cut and process the decorative materials; and glue them together with cohesive material to make structure frame. Second pouring cement slurry into this frame to make reinforced concrete component, and before the above cement components concretion, to glue the surface decorative materials on their surfaces with the cement slurry.

The invention discloses a pair of forceps for vertebral body back wall. The pair of forceps comprises a fixed handle, a movable handle, an upper forceps, a lower forceps and a support spring assembly, wherein the back end of the upper forceps is bent upwards and is fixedly connected with the fixed handle into an integral structure; the back end of the lower forceps is connected with the movable handle, and the movable handle is hinged to the fixed handle, is moved to the setting direction of the fixed handle by using the inner lower side of a crossing point of the fixed handle and the upper forceps as a support point, is translated upwards, and is engaged with the upper forceps to cut the bone block; the support spring assembly is arranged between the fixed handle and the movable handle, and is used for resetting the movable handle; the front part of the upper forceps is provided with a cross section suitable for spinal cord, so as to obtain a wedge for relieving pressure in front of the spinal cord. The pair of forceps has the advantages that the structure is reasonable, the design is skillful, the operation is convenient, the mechanics principle and operation habit are met, the disturbance and injury to nerves when the vertebral body back wall is cut via the back path are well avoided, and the pair of forceps is suitable for being popularized and applied.

The invention belongs to the technical field of automobile part tools, and particularly relates to a spherical shell for an automobile. The spherical shell for the automobile comprises a plate, the front of the plate is a triangle in triangular circular arc transition, three cylindrical through holes are formed in the three angles of the plate, and the cylindrical through holes are concentric with circular arcs on the three angles of the plate respectively. A strip arc-shaped protrusion is arranged in the middle of the third side of the plate and concentric with the circular section of a cylinder, a through hole is formed in the central axis of the cylinder, and an annular groove is formed in the middle of the outer side wall of the cylinder. The spherical shell is simple in structure, the stress to which the spherical shell for the automobile is subjected can be well reduced, use intensity can be greatly enhanced, and the service life of the spherical shell is prolonged.

Disclosed are a method and system for calculating a shale full-angle anisotropic brittleness index. The method comprises the following steps of calculating a VTI medium stiffness matrix coefficient; calculating a full-angle longitudinal wave speed, a full-angle fast transverse wave speed and a full-angle slow transverse wave speed; calculating a full-angle Poisson's ratio and a full-angle Young'smodulus; calculating an anisotropic brittleness index of a full-angle full-wave field; calculating a crack fracture adjustment factor of the full-angle full-wave field; calculating a brittleness indexafter calculation of the crack fracture adjustment factor of the full-angle full-wave field. According to the method, the brittleness index is calculated according to the crack fracture adjustment factor, and the angle and position of a maximum brittleness index can be found more accurately, so that calculation of the brittleness index is better in accordance with the mechanical principle and thereality.

The invention discloses a binary compatible solar water heater system with a brand new framework. The entire system comprises a heat collector, a heat storage water tank, a temperature control valve, a water level control valve, an automatic switching valve and a manual switching valve; when anti-freezing and exhausting functions are realized, the entire system further comprises a respiration valve or a self-restoration one-way valve and a pipeline for connecting all components, so that upper and lower water paths can be switched automatically; serial connection and replacement heat exchange methods are adopted for the heat collector and the heat storage water tank, so that the heat storage water tank in an integral solar water heater is easily positioned below the heat collector; in a split non-pressure-bearing solar water heater, the horizontal distance between the heat collector and the heat storage water tank is prolonged; and moreover, the water temperature of the heat storage water tank is definite regardless of an all-in-one machine or a split machine. In the entire system, a fully-mechanical structure and a single pipe are adopted for feeding and discharging water, so that automatic control over water feeding, automatic control over water discharging, automatic control over emptying and zero power consumption are realized. The binary compatible solar water heater system has the advantages of very simple overall framework, low cost, high performance cost ratio and good social benefit and economic benefit.

The invention discloses a power augmentation swimming assistant accelerator, and relates to the technical field of fitness appliances. The power augmentation swimming assistant accelerator comprises acasing piece, a plurality of sets of hinge shaft which incline outwards are connected to the casing piece in the circumferential direction, the included angle of each set of hinge shaft and the horizontal end face of the casing piece is an acute angle, and each set of hinge shaft is sleeved with a pair of hinges which can rotate around the axis of the hinge shaft. The power augmentation swimmingassistant accelerator has the advantages that the structure is simple, the opening and closing speed of the hinges is high, and swimming can be accelerated rapidly.

The invention discloses an inverted triangular pipe truss, comprising a steel structure truss, a shuttle-type steel pipe column (1) supporting the steel structure truss, a shear key (2) of a concrete embedded part and a concrete embedded part. The steel structure truss is composed of multiple The pipe trusses are welded together, and the pipe trusses constituting the steel structure trusses include a plurality of pipe trusses A (3) parallel to each other and arranged in the longitudinal direction, and a plurality of pipe trusses B (4) arranged in the transverse direction. The upper end of ) is connected to the connection part of the pipe truss A (3) and the pipe truss B (4), and the lower end is connected to the shear key (2) of the concrete embedded part; the shuttle-shaped steel pipe column (1) is inclined to the inside of the steel structure truss. The construction method of the inverted triangular pipe truss is also disclosed. The beneficial effects of the invention are: a tall space system with large span and high height can be formed, the shuttle-type steel pipe column is used for better stability, the building is beautiful in shape, overall, light and elegant, and beautiful.

The invention discloses an integrated steering knuckle device applied in a robot. The integrated steering knuckle device applied in the robot comprises a shell, an outer connector, a bearing, a brushing piece base module, a crank load tray, a first gear motor and a driving device, wherein the first gear motor is connected with the crank load tray by a transmission shaft so as to be used for controlling the crank load tray to rotate in the X direction; the bearing is in sliding connection with the shell; one end of the bearing is connected with a placing groove positioned in the shell; the first gear motor and the driving device are clamped in the placing groove; the driving device is connected with the shell so as to be used for controlling the outer connector and the crank load tray to rotate in the Y direction simultaneously by the bearing; and the brushing piece base module is connected with the first gear motor and the driving device simultaneously so as to be used for enabling outside current to be introduced, and driving the first gear motor and the driving device to work. The integrated steering knuckle device disclosed by the invention can be used for effectively solving problems that a mechanical arm is inconvenient to control, high in assembling cost and lines are wound in an existing robot, so that integrated steering control on knuckle parts of the robot is realized.

The invention relates to fitness equipment, and particularly relates to a multi-directional lower limb exercising device. The device comprises connecting rings, connecting belts, connecting buckles and a length adjusting member; two ends of the connecting belts are movably connected with the two connecting rings; the connecting belts penetrate through the connecting buckles; the length adjusting member is arranged on one of the connecting belts; a user can connect the connecting buckles arranged at different positions to external equipment to perform leg lifting actions in different directions, and the connecting belts slide on the connecting rings to be adapted to pulling force from different directions; the design is simple in structure, and shoes are sleeved with the device, so that thedevice is not in contact with skin.

The invention discloses a full-automatic degassing machine, comprising a degassing barrel (2), a slurry inlet (1), a slurry outlet (6), a stirring and crushing device (3) and a motor. The invention is characterized in that the full-automatic degassing machine also comprises an air cavity (7), an air inlet (8), an oil gas suction inlet (9), a lifting support sliding rod (21), a guide rail locatingplate (12), a double spindle lifting cylinder (24) and a brake friction plate (30), and a first ultrasonic wave probe (15), a second ultrasonic wave probe (16), a slurry blocking detection device (25) and an automatic drainer (26), and the double spindle lifting cylinder (24), a braking cylinder (28), the slurry blocking detection device (25), the motor (13), the first ultrasonic wave probe (15) and the second ultrasonic wave probe (16) are all connected with an electric control device (31). The full-automatic degassing machine disclosed by the invention has a reasonable design, a simple structure, economy and practicability, convenience in operation, good degassing efficiency, high efficiency, long service life and simplicity in mounting and dismounting.

The invention provides a unilateral two-arm adjustable two-way dual-power bone lengthening pressurized locking external fixator and belongs to the technical field of bone treatment instruments. The external fixator aims at solving the problem of limb shortening caused by lower limb thighbone large-segment splintered fracture long treatment concurrent large-segment bone defects. The external fixator comprises two or three or four steel nail splint linked clamps arranged between a main arm threaded rod and an auxiliary arm threaded rod side by side. The positions of upper steel nail splints and lower steel nail splints of the steel nail splint linked clamps on vertical adjustment threaded rods are adjusted through nuts. Upper end holes of connecting plates are connected with the auxiliary arm threaded rod, the positions of the connecting plates on the auxiliary arm threaded rod are adjusted through nuts on the two sides, lower end holes of the connecting plates are connected with the vertical adjustment threaded rods, chutes are formed in the main arm threaded rod, and convex plates are in sliding fit with the chutes. A power nut is arranged between every two adjacent convex plates. The positions of the convex plates on the main arm threaded rod are adjusted through the power nuts. The convex plates are fixed to the main arm threaded rod through screws after the positions are adjusted. The external fixator is mainly used for bone injury treatment.

The invention discloses a repeatedly-assembled free combination type office table. The repeatedly-assembled free combination type office table comprises panels, table legs, reinforcing columns and connecting pieces which are freely joggled into a whole body, wherein arrow-shaped concave parts are separately arranged on the panels and the reinforcing columns; single arrow-shaped convex parts are arranged on the table legs; two single arrow-shaped convex parts are symmetrically arranged on each connecting piece; the profiles of all the concave parts and the convex parts are identical; the reinforcing columns are long square columns of which the bottom surfaces are square and four side faces are provided with the concave parts; the panels are flat plates of which the side faces are provided with concave parts; the side length of the bottom surface of each reinforcing column is identical with the thickness of the corresponding panel; the convex parts on the top surfaces of the table legs are joggled into the concave parts on the bottom surfaces of the corresponding reinforcing columns; the concave parts on the side faces of the reinforcing columns are connected with the concave parts on the side faces of the corresponding panels by the connecting pieces; the panels are used as the tabletop and are arranged on the table legs by the connecting pieces and the reinforcing columns to form the office table. The repeatedly-assembled free combination type office table disclosed by the invention is convenient to disassemble and assemble, can well meet the demands of different spaces and facilitates scale development of customized office furniture production.

The invention belongs to the technical field of automobile parts, and relates to a drag link ball shell. The drag link ball shell comprises a ball head and a ball handle. The ball head is a cylinder, wherein one side portion of the cylinder protrudes outwards in an arc shape. The ball head is provided with a concave structure which penetrates through the upper end face and the lower end face of the ball head, the concave structure comprises an upper hole, a middle hole and a lower hole, and the length of the lower hole is larger than that of the upper hole. The ball handle comprises a crank and a straight shank, one end of the crank is fixedly connected with the lower side portion of the ball head, the position, located close to the ball head, of the upper portion of one end of the crank is provided with an arc-shaped chute, and the other end of the crank is connected with the straight shank. The crank is provided with an inward concave arc surface and an outward convex arc surface, the radian of the inward concave arc surface ranges from 5 degrees to 10 degrees, the radian of the outward convex arc surface ranges from 2 degrees to 6 degrees, and the crank is provided with an inward concave through hole penetrating through the crank. The drag link ball shell is reasonable in structure, and the service life of the drag link ball shell can be prolonged.

The invention discloses a material distributing trolley assembly of a building block forming machine. The material distributing trolley assembly of the building block forming machine comprises a material distributing trolley and an advancing and retreating buffering mechanism. The material distributing trolley comprises a material distributing trolley frame, a push-and-pull oil cylinder, a guide rail frame and a material distributing frame. The material distributing trolley frame is arranged on a machine frame rail of the building block forming machine. The material distributing trolley frame is provided with a partition plate, and the material distributing trolley frame is divided into a material distributing area and a push-and-pull work area. The push-and-pull oil cylinder and the guide rail frame are erected in the push-and-pull work area. A piston rod of the push-and-pull oil cylinder is connected with the guide rail frame. The push-and-pull work area is provided with a guide wheel assembly corresponding to the guide rail frame. The partition plate is provided with through holes, and the ends of the guide rail frame penetrate through the partition plate through the through holes. The material distributing frame is arranged in the material distributing area and is connected to the ends, penetrating through the partition plate, of the guide rail frame. The push-and-pull oil cylinder pushes and pulls the guide rail frame to drive the material distributing frame to move in a reciprocating manner. The advancing and retreating buffering mechanism is erected on the machine frame of the building block forming machine and connected with the material distributing trolley frame. When the material distributing trolley assembly of the structure distributes materials, reciprocating motion of the whole trolley is not needed, and only the material distributing frame needs to conduct reciprocating motion to distribute the materials; and the material distributing trolley assembly is reasonable in mechanical structure, rapid in material distribution and convenient to maintain.

The invention relates to the technical field of water supply devices, in particular to an intelligent multi-source lamination quality-divided water supply device. The intelligent multi-source lamination quality-divided water supply device is mainly composed of a built-in silencing booster pump set, a weir type lamination booster pump set, a central water treatment system, a domestic fire-fightingcombined lamination water supply device, a combined raw water storage system, a special drinking water supply system, a cooking water supply system and a waste water recycling and magnetization reutilization system; and the intelligent multi-source lamination quality-divided water supply device is compatible with the technical performance of tank-type lamination, box-type lamination and triple (multi-connection) lamination, meanwhile, the functions of fire fighting and domestic water are taken into account, meanwhile, quality-divided water supply of special drinking water, domestic water and clean water can be realized, and the three kinds of water with different water qualities are respectively conveyed to respective required water taking points. The problem of low resource utilization rate is solved, and the device is mainly used for carrying out quality-divided treatment on water resources and reutilizing wastewater.

The invention discloses a binary compatible solar water heater system with a brand new framework. The entire system comprises a heat collector, a heat storage water tank, a temperature control valve, a water level control valve, an automatic switching valve and a manual switching valve; when anti-freezing and exhausting functions are realized, the entire system further comprises a respiration valve or a self-restoration one-way valve and a pipeline for connecting all components, so that upper and lower water paths can be switched automatically; serial connection and replacement heat exchange methods are adopted for the heat collector and the heat storage water tank, so that the heat storage water tank in an integral solar water heater is easily positioned below the heat collector; in a split non-pressure-bearing solar water heater, the horizontal distance between the heat collector and the heat storage water tank is prolonged; and moreover, the water temperature of the heat storage water tank is definite regardless of an all-in-one machine or a split machine. In the entire system, a fully-mechanical structure and a single pipe are adopted for feeding and discharging water, so that automatic control over water feeding, automatic control over water discharging, automatic control over emptying and zero power consumption are realized. The binary compatible solar water heater system has the advantages of very simple overall framework, low cost, high performance cost ratio and good social benefit and economic benefit.

The invention belongs to the technical field of reverse type centripetal hydroelectric generation devices which are high in rotating force and low in noise, and discloses an electromagnetic shaftlessreverse type centripetal vortex-blade hydroelectric generator. The electromagnetic shaftless reverse type centripetal vortex-blade hydroelectric generator is provided with a generator body and a hydraulic machine rotary cylinder which are integrated. A reverse type centripetal continuous long strip-shaped shaftless vortex blade channel which zigzags periodically is formed in the hydraulic machinerotary cylinder. The radius of the outer edge of a continuous long strip-shaped shaftless vortex blade is unchanged, the inclination angle of the blade is gradually changed topologically from 45 degrees to 90 degrees, the screw pitch of the blade is increased gradually, and the space of the continuous long strip-shaped shaftless vortex blade channel is gradually increased. By adoption of the electromagnetic shaftless reverse type centripetal vortex-blade hydroelectric generator, the defects that a centrifugal impeller unit of a traditional hydraulic machine is sheet, cannot work continuously and is small in acceleration force, the impact force between a blade and a water body is large, the resistance is large, the noise is high, and the generation power is low are overcome; and the electromagnetic shaftless reverse type centripetal vortex-blade hydroelectric generator has the advantages of extremely high rotating force, high power generation capacity, low noise, safety, stable operating, compact and reasonable structure, remote control and the like.