173results about "Swimming framework" patented technology

A swim-in-place trainer having flow assist features incorporated into the pool design. The flow assist features may include a contoured bottom having a flow directional hump located in approximately the center of the swim area. The flow directional hump may extend laterally across the entire swim area and separate a deeper front portion of the pool from a shallower rear portion of the pool. Other flow assist features may include a front and rear ridge for directing water to and from the swim area, respectively. Interior side walls disposed on opposing sides of the swim area may each include an inner front portion for creating a flow improving vortex to reduce water friction. An optional propulsion means, such as a pump or impeller, may provide a variable water flow dependent upon the location of a swimmer in the swim area or other factors.

A manually controlled mechanical fish for underwater prospect, underwater job, or underwater tour is composed of sealed shell, electric propelling system consisting of motor, power supply, speed variator and propeller, controller, carrying unit, observing system composed of light source, and image and / or sound sensors, and signal receiver system. Its advantages are easy to carry about and low cost.

A personal flying water jet apparatus consisting of two towing connected units: one is a floating platform, mainly an inflatable Ski Tube (12A) (and so on), equipped with water jet nozzles (18) directed downward and mounted on both sides by means of brackets (20); the other is an inlet port (24) fixed on a tow line (16) and connected with nozzles (18) by mean of a hose (22). While the tube is being towed, the kinetic head appears and pressurized water is discharged at the nozzles (18) producing a thrust, so the rider (10) will fly. An additional version of the apparatus is: the nozzle (18) can be fixed on the rider's (10) back, so this lifting assembly performs like a Backpack, but the floating platform can be made in the shape of a life jacket (12B).

The invention relates to a portable self-regulating steering underwater assistance propeller with a rescue device. The portable self-regulating steering underwater assistance propeller comprises a waistband, the rescue device and a propelling device. The waistband comprises a waistband rear end and a waistband front end. The waistband front end is provided with a locking button for fixing the waistband. The outer side of the waistband rear end is provided with an installing plate, a first backpack and a second backpack. The outer side of the installing plate is provided with a connecting hole and an arc groove. An arc rack is installed in the arc groove. The rescue device comprises a compressed air tank installed in the second backpack, an air valve and an airbag. The airbag is fixedly connected with the waistband. The propelling device comprises an upper cylinder body and a lower cylinder body. The portable self-regulating steering underwater assistance propeller with the rescue device has the advantages of rational and simple structure, convenient use, safety and reliability, high intelligent level, and life-saving function, and is capable of effectively solving the problem that the current underwater assistance propeller is not provided with the rescue device.

The invention provides an electric swimming boat which comprises a floating body. Grasping parts are arranged on the upper surface of the floating body. Propellers are arranged on the two sides of the bottom face of the floating body. The floating body is in a U shape, the two sides of the tail of the floating body extend backwards to form elbow supporting bodies, and the propellers are arranged below the supporting bodies. The grasping parts are longitudinal handles arranged on the two sides of the middle of the floating body, and starting switches are arranged on the longitudinal handles. The electric swimming boat is provided with the propellers, pushing force of the limbs of a human body is not required, the switches on the handles are only required to be controlled to achieve forward movement of the swimming boat, and a circuit control module inside the floating body has the speed adjustment control function on power of the propellers and is capable of feeding information on a control display panel. The electric swimming boat is simple in structure and novel in design and has the wide market prospects and the high economic value.

The invention discloses a waterborne rescuing device, including: floating body, said floating body is a sealed hollow structure with controller, power supply and internal propelling device in it; said propelling device consists of propeller and its driving motor, the propeller is installed on the tail of floating body; fixing traction ring on the shell of said floating body. The notable features of the invention are: it can greatly shorten the time needed for rescuing, and lead to the lifeguard arrives at persons falling into water in the shortest time and carry out rescuing. The invention is simple and easy to operating, and it can be applied to various places such as beach and swimming pools, also can be carried on ships to carrying out rescuing on the sea.

It is made possible to concretely estimate actual transmission bit rate in a frame of grasping a line state by using a report packet.Together with media packets encoded by a video encoder 1 and an audio encoder 2, a sender report packet generated by a sender report generation section 3 is sent to the transmission line. A receiver report packet is fed back from the receiver side. Each of the sender report packet and the receiver report packet includes report packets of two kinds differing in size. A rate estimation section 4 estimates transmission bit rate on the basis of round-trip delay time for the sender report packet and the receiver report packet each having a small size and round-trip delay time for the sender report packet and the receiver report packet each having a large size.

A floating-diving machine for carrying a person to float on water surface or to dive under water is composed of a carrier body, a machine cabin, a bottom cabin, and a jet propeller hidden is said bottom cabin. Said jet propeller is a hollow pipe with guide convex plates and slots on its inner surface to generate propulsion force.

Self-propelled life vest for assisting a swimmer in water includes an inflatable body, the body being configured for being worn on a torso of a swimmer. An upper connector is provided and configured for connecting the body to an upper portion of a swimmer, in use. A lower connector is configured for connecting to a lower portion of a swimmer, in use. A propulsion unit on the vest is sufficiently strong for propelling a swimmer through water, in use. A power is operatively connected with the propulsion unit for powering the propulsion unit. An inflation control is provided on the body and operatively connects with the inflation device for inflating and deflating the inflation device, in use. A propulsion unit housing prevents the swimmer from contacting the propulsion unit, and directs inflow and outflow of propelled water, in use, for assisting in moving the swimmer in the desired direction.

An underwater electric swim-assisting shoe comprises a plastic shoe outsole, a metal show sole from, a sole metal plate, a propulsion motor, a waterproof storage battery, a motor frame net cover and a battery protecting cover. A plurality of sole frame bolts and nuts are fixed on the metal shoe sole frame, the plastic shoe outsole after being positioned by injection and an electric swim-assisting vamp are assembled to form a shoe boot, the sole metal plate is fixed on the metal shoe sole frame by using the nuts, and the propulsion motor and the waterproof storage battery are fixed on the sole metal plate; after the motor frame net cover and the battery protecting cover are fixed on the metal shoe sole frame, underwater sundries can be prevented from tripping and winding propulsion propellers, and the underwater electric swim-assisting shoe can be worn to walk on shoals; when the underwater electric swim-assisting shoe is worn to move underwater, two feet are vigorously merged to push a sole triggering switch to act or press an electric shoe waterproof manual switch, in this way, the propulsion propellers on the propulsion motor can be controlled to rotate to push a human body to advance underwater. The underwater electric swim-assisting shoe is especially suitable for underwater sports, underwater exploration and navy special forces to use.

A motorized watercraft with a hull of the craft on which a user lies prone, at least partially, or stands up, with a flow channel extending in the hull of the craft with an electric motor-driven water screw. The electric motor and the batteries, as well as the control device for the electric motor and the water screw are housed, at least partially, in the flow channel in the hull of the craft. A clear increase in efficiency can be attained in connection with the motorized watercraft if a flow stator is arranged in the flow channel of the water screw, upstream, or preferably downstream, in the flow direction, which at least partially straightens the rotating water flow generated in the flow channel.

The present invention provides a personal propulsion device including a body unit having a center of gravity, where the body unit includes a thrust assembly providing a main conduit in fluid communication with at least two thrust nozzles, with the thrust nozzles being located above the center of gravity of the body unit. The thrust nozzles are independently pivotable about a transverse axis located above the center of gravity, and may be independently controlled by a single common linkage. The present invention may further include a base unit having an engine and a pump, which provides pressurized fluid to the body unit through a delivery conduit in fluid communication with both the base unit and the thrust assembly.

A swim fin having articulating wing members articulated by means of clock washers or the like with respect to a foot pocket to provide, among other things, adjustment of pitch and tension of such wing members or other fin blade. A swim fin with articulating wing members may have a foot pocket with a forked end. Articulating wing members may then be attached to the fork stubs, there being right and left articulating wing members. Clock washers or the like may serve to provide stable and adjustable means by which the disposition of the individual articulating wing members may be selectably disposed with respect to the foot pocket. The wing members may provide more efficient propulsion for both short bursts and long range swimming. The swim fin of the present invention allows the swim kick to concentrate its energy in a more propulsive direction. An alternative embodiment of the present invention has individual webbed rails generally connected at their common base, but may be separated, or split, near their end. The rails are generally attached to the foot pocket in the manner similar to that for the articulating wing members. Other embodiments of the present invention also allow articulation about the clock washers, adjustably altering the pitch, tension, and / or geometry of the attached swim fin blade or blades.

The invention discloses a mechanical underwater manual propeller, which comprises a screw propeller mounted on a screw propeller shaft. A first bevel gear is disposed at the rear of the screw propeller, a protecting ring which is concentric with the screw propeller is arranged on the outside of the screw propeller, a supporting plate is disposed on one side of the protecting ring, a first gear and a second gear which are meshed mutually are disposed on the supporting plate, a transitional gear is further arranged on the supporting plate, the transitional gear and the second gear form a meshing pair, a transmission shaft of the transitional gear penetrates through the supporting plate, a second bevel gear is disposed at an end, which his located in the protecting ring, of the transmission shaft, the first gear is connected with a first connecting rod, the second gear is connected with a second connecting rod, and a one-way flywheel is disposed on the screw propeller shaft. The mechanical underwater manual propeller can high-efficiently convert power of a human body into advancing power as far as possible by the aid of a mechanical transmission principle, and high swimming speed can be obtained without high physical power consumption.

Several embodiment of an exercycle which is suspended by floatation devices just below the surface of the water, requires the user to exercise both upper and lower body portions to work the cycle while maintaining balance in the water. The aquatic equilibrium cycle can be used for muscle toning, physical therapy or competition. Some embodiments employ a foot pedal having hinged wings which produce an octopus-type propulsion to move the cycle in a forward direction. Some embodiments allow the adjustment of the magnitude of floatation force to accommodate the body size of the particular end user.

Personal watercraft systems and watercraft power systems are described. The personal watercraft power systems include a housing for supporting a water jet pump and engine system. The housing is constructed to support the power system and removably engage a watercraft. An engine and a centrifugal pump are enclosed in the housing and operatively connected by an endless drive, such as a belt. A crankshaft of the engine is generally aligned and offset for a pump shaft of the centrifugal pump. An impeller is connected to the pump shaft and is constructed in rotate in a plane generally aligned, and preferably offset from, a plane of a water surface. The orientation of the engine and the centrifugal pump provides a watercraft power system that has a reduced profile and is particularly applicable for watercraft constructed to support an operator in a prone position. The housing is constructed to removably engage a number of watercraft configurations and provides a watercraft power system that is easily serviceable, highly versatile and dynamic.

The invention provides a foot pedal assisted nestocalyx, which consists of a keel, a front thrashing device and a rear thruster assembly. The front thrashing device is arranged at the front part of the keel through a rotating shaft; and the rear thruster assembly is arranged at the rear part of the keel, wherein the front thrashing device consists of a handle and an aquaboard; the end part of the aquaboard is connected with the middle of the handle; the middle of the handle is connected with the front end of the keel through the rotating shaft; the rear thruster assembly consists of an adjusting plate, a foot pedal, a commutator and an impeller; and the commutator consists of a big conical gear and a cone pinion and a transmission shaft. The foot pedal assisted nestocalyx of the invention has the advantages that the special effect is to make the swimming labor-saving and quick; and the foot pedal assisted nestocalyx can give full play to the maximum potentiality and the durability of a human body, has good hiding property, strong flexibility, safety, and reliability, can be used for large-scale group military operations, is superior to the prior military strength deployment in an airborne mode, and is essential equipment for large-scale cross sea operation.

An underwater motive device utilizes a plastic rear housing which includes a battery storage space sealed with a tight fit to provide sealing, a pressured removal system is provided to pressurize the sealed battery chamber to enable the front wall to be removed. The motor is microprocessor controlled for safety by providing a slight delay before energizing the motor, and by providing some time in residence at a slow speed before switching to a higher speed. The result is a safe underwater motive device which will not accidentally become power actuated before the user is able to securely grasp and direct it, and which will not go to full speed except from a low speed to give the user a chance to stabilize himself in the water. Further, the control circuitry includes other features to provide both long battery life, good serviceable usage and battery preservation and motor preservation.

Electric Propulsion system supported by a special usable harness slinging from scuba divers, deep-sea divers or simple swimmers, advantageously fed by a sophisticated system of rechargeable batteries, inserted inside several united watertight containers between them. The innovative structure, allow to all specialized operators to move forward underwater even if the immersions will be made in depth and for prolonged for long time periods, through the use of a motorized propulsion module. Another characteristic of the system is that it will allow a user to move and be operated in complete freedom and under any condition.

The invention relates to a propulsion device, in particular to an underwater propulsion device for divers (1) and swimmers comprising one or several drives (2) provided with electric motors (4) and means (3) for fixing the drives (2) to the legs or arms of the diver (1) or swimmer, wherein the electric motors (4) are provided with a sump cooling, with the electric motors (4) being arranged in waterproof housings (5) and each waterproof housing (5) only being partially filled with a cooling liquid. By arranging the drives (2) on the extremities of the diver (1) or swimmer, the flexibility and mobility are significantly increased; at the same time, the provision of a sump cooling system improves heat dissipation and thus increases the power density.

The present invention relates to a swimming aid apparatus worn on the body. The swimming aid apparatus worn on the body according to the present invention is worn by the user to provide propulsive force so that the user can enjoy swimming. Also, a water jet propeller may be used and stably operated without breaking down or being damaged by underwater living organisms or foreign substances. The swimming aid apparatus worn on the body according to the present invention includes: a body frame worn on the user's body; a water jet propeller fixed to the body frame to spray water, thereby generating propulsive force; a battery connected to the water jet propeller to supply power; and a controller controlling the operation of the water jet propeller.

A vehicle for use on the water that can be propelled into the air above the water is provided. The vehicle can include a main body, a board provided on the bottom of the main body, a seat, an inlet for receiving a pressurized incoming water stream, a main nozzle positioned to direct a flow of water beneath the board, handlebars having handle conduits, each handle conduit ending in a nozzle for discharging a flow of water out of the handle conduit and rotatable relative to the vehicle, and conduits supported by the main body, the conduits connected to the inlet and positioned to route a first portion of the incoming water stream to the main nozzle and a second portion of the incoming water stream to the handlebars. The water stream can be supplied to the vehicle from an outlet on a personal water craft.

A self-propelled personal flotation apparatus provides a motorized flotation board which includes internal water propulsion equipment and associated push-button controls. In use, a user straps the apparatus onto their chest area, enters a body of water such as a lake, a pond, or a pool, and is propelled across the water surface.

The invention discloses an auxiliary device of swimming. A casing is a cylinder, the upper part and the lower part of the cylinder are not sealed, the upper end of the inside is supported by an upper bracket, the lower end is supported by a lower bracket, an upper power wheel and a lower power wheel are installed at the inside, the side faces of the upper power wheel and the lower power wheel are both provided with double grooves, and power is transmitted to the power wheels and ratchet wheels by foot pedal power ropes and then is transmitted to a screw propeller so as to realize forward reactive force. As the invention skillfully designs a transmission mechanism, a both-foot circular water pedaling motion is naturally transformed into the rotation of the screw propeller, thereby providing forward boosting; moreover, the invention has compact structure, is convenient for loading and unloading, saves the physical strength and also enhances the pleasure of swimming, and people feel very comfortable when using the invention.

The invention relates to a bionic swimming propeller and a swimming propelling method, and belongs to the technical field of swimming equipment and swimming propelling methods. According to the technical scheme, a plurality of longitudinal grooves (8) are formed in the surface of a base body (1), and corresponding shaft holes are formed on the inner walls on the two sides of each groove; a pull rod (3) is arranged in each groove, is embedded in the groove and slides up and down in the groove, one end of each pull rod penetrates out of the upper portion of the base body and is sleeved with a spring (5), and each pull rod is provided with a plurality of transverse grooves (6); a connecting shaft (7) is arranged on each scale (2) and located above the corresponding groove in the corresponding pull rod, and the two ends of each connecting shaft are clamped in the shaft holes in the corresponding groove of the base body; a bottom ring (4) is arranged below the base body and matched with the base body in shape. The bionic swimming propeller simulates the structure of scales and is simple in structure, convenient to use and practical, the bionic swimming propeller is tied to the crus when a user swims, and the scales are opened when the user drives the legs, so that the action area between the crus and water is increased; the scales are closed when the user withdraws the legs, so that advance resistance is reduced, and then swimming speed is increased.