19results about "Muscle power acting propulsive elements" patented technology

The utility model relates to folding boat oar technical field, especially a folding boat oar for water conservancy project, including first boat oar pole, one side of first boat oar pole end portion rotatory connection has the pivot, first boat oar pole is connected with second boat oar pole through pivot rotation, the end of second boat oar pole fixedly connected with the paddle board, the outside of first boat oar pole and second boat oar pole junction place is sleeved with the limit sleeve, the utility model has the advantages of: through setting up the pivot between first boat oar pole and second boat oar pole, can make both relatively rotate, can fold the boat oar and reduce the volume when storing in the place of narrow space, the torsion spring can make boat oar pole keep in the elongation state in the unfolded state, and the convenient use is through setting up the limit sleeve of sliding in the junction place of first boat oar pole and second boat oar pole, when first boat oar pole and second boat oar pole merge, then limit sleeve slides to the junction place, and the junction position of two is reinforced.

A hydrofoil vehicle comprises a frame and at least one foil. The vehicle comprises a moveable control surface configured to control a pitch of the vehicle, in use. A locking mechanism is provided for restricting movement of the control surface when the vehicle is not foiling, for example during launching. In examples, the locking mechanism activates automatically when the hydrofoil vehicle is not foiling. In examples, the vehicle is human powered.

The utility model discloses a special foot pedal oar of inflatable product relates to propeller technical field, including boat oar mounting seat subassembly, boat oar mounting seat subassembly includes power box and positioning box, be equipped with power box middle axle in power box, the oar control subassembly of shaking, the oar control subassembly includes power box transmission link and footboard, power box transmission link is rotatoryly installed on power box through power box middle axle, and one end of power box transmission link is connected with footboard, the oar rod subassembly, the oar rod subassembly includes boat oar transmission link, oar blade positioning link and oar blade, boat oar transmission link is connected with the one end of power box transmission link away from footboard, oar blade positioning link is connected with oar blade, just oar blade positioning link swing installation is in positioning box. The utility model discloses through setting up the driving mode of pushing type, has solved the oar of present inflatable product's foot pedal to be the bicycle type movement of kicking, and there is the problem of single driving mode, expending physical strength and damaging knee.

A system for an oar for determining the rowing force during an oar stroke of a rower in the water has a measurement receiver with an oar shaft-side receiving area for attachment to an oar shaft of an oar and with an oar grip-side receiving area for attachment to an oar grip of this oar. A plate is provided between the receiving areas, on both sides of which a strain gauge is applied near the oar shaft-side receiving area or near the oar grip-side receiving area , the signal from which can be used to determine the rowing force, since when force is exerted on the oar grip-side receiving area perpendicular to the plane of the plate, the plate assumes an S-shape.

This invention provides a paddle gripping aid that increases the range of motion of the user's arm during the paddling process. [Solution] The gripping aid of the present invention is a gripping aid for a paddle that is attached to the shaft of a paddle, and comprises a projection that is held between the first and second fingers of the user when the user of the paddle grips the shaft, and a mounting portion for attaching the projection to the shaft such that the projection protrudes from the shaft. The projection protrudes from the outer circumferential surface of the mounting portion, and when the mounting portion is attached to the shaft, the inner circumferential surface of the mounting portion is in contact with the outer circumferential surface of the shaft and is configured to cover at least a portion of the shaft in the circumferential direction.

This utility model discloses an easy-to-maintain paddle, including a grip and multiple paddle plates. The grip includes a central tube and multiple side rods. The inner diameter of the openings at both ends of the central tube narrows inward to form connecting holes. The side rods are vertically arranged at both ends of the central tube, and each side rod has a connecting groove at one end. A rotating seat is movably installed in the connecting groove via a pin. The other end of each rotating seat extends through the connecting hole into the central tube and is fitted with a column. The other end of each column expands outward to form a limiting part. The other end of each side rod is fixedly connected to a paddle plate. This utility model has a simple structure. The side rods and central tube can be arranged in a U-shape, allowing the device to be carried on the shoulder for easy portability. The side rods can be positioned by screws, preventing them from swaying during walking and increasing stability. When the side rods are raised, they can quickly connect to the central tube, allowing the grip to be held straight for paddling.

The application discloses a kind of action automatic correction device and method for dragon boat oar, the device is designed by paddle into one side convex, one side recessed tile surface or dipper surface arc structure, and setting the reinforcing rib of protruding in recessed surface middle part;The structure makes that paddle can more effectively aggregate water flow when rowing, increase propulsive force;Especially in the stage of oar out of water, can produce significant resistance resistance feedback to the wrong lateral "turning oar" action, and form relatively smooth water flow passage to the correct vertical oar action;Rower is passively guided to repeat the correct action of smaller resistance by muscle perception of this resistance difference, so as to automatically correct the error action and form correct muscle memory without relying on external instructions or complex equipment.The application has simple structure, and the correction process is natural, improves training effect while improving the efficiency of oar.

A water sports device with fin propulsion, characterized in that propulsion is generated via adapted swim fins on at least one boat hull, through cross-country skiing-like body weight shifting, which is triggered by alternating forward and backward rolling over a central transverse axis on specially designed running and rolling rails on the port and starboard sides by transferring the ducking, turning and diving movements occurring during this process to the swim fins, which are attached laterally, below or at the rear and whose impulses are converted into directed waves, and propulsion and timing are additionally supported by the use of cross-country ski poles, whose flexible pushing surfaces are adapted to the properties of the water surface.

A watercraft having a body with an opening for a user, a seat, at least one drive mechanism placed at least partially within the opening; an intake configured to allow a flow of water from a body of water surrounding the watercraft; a pump configured receive the flow of water and accelerate the flow of water, and a user controlled discharge configured to receive the flow of accelerated water from the pump and discharge the accelerated water to the water surrounding the watercraft such that the watercraft moves in a direction chosen by the user.

A kind of carbon fiber dragon boat paddle of H-shaped structure, including T-shaped handle, hollow carbon fiber paddle rod and carbon fiber paddle blade;The T-shaped handle is fixedly connected with the upper end of hollow carbon fiber paddle rod, and T-shaped handle, hollow carbon fiber paddle rod and carbon fiber paddle blade are arranged along the same longitudinal axis;The inside of carbon fiber paddle blade is provided with integral H-shaped reinforcing rib along the length direction, and the integral H-shaped reinforcing rib includes middle web and upper and lower flange;The hollow carbon fiber paddle rod, T-shaped handle, carbon fiber paddle blade are all integrally hot-pressed by carbon fiber composite material.The present application provides a kind of carbon fiber dragon boat paddle of H-shaped structure and manufacturing method thereof, by setting H-shaped reinforcing rib inside paddle blade, and cooperating with T-shaped anti-twist handle, the overall bending and torsional stiffness of paddle body is significantly improved, the weight of paddle body is reduced, holding stability and power transmission efficiency are enhanced, suitable for professional competition and daily training use.

The present Invention of Speed Cycling Watercraft is a single and double cycling system and is water or air propelled. It is specifically designed for manual water racing or sporting and the floater is unsinkable platform. The double cycling system is designed such that anyone cyclist can lock in and out to rest or continue and the cycling independent. The system comprises, unsinkable platform, mono wheel bike or bikes, single or double cycling gearbox, propeller shaft and water or air propeller. Motion transmission system is developed into three stages, primary, secondary and advanced stage, capable of generating more than 2,400 rpm on air propelled platform and 2,000 rpm on water propelled platform. For the air propelled platform, breaking mechanism is separately designed. The present invention of Speed Cycling Watercraft is mainly designed for manual water racing or water sporting, the futuristic Commonwealth and Olympic Games Water Cycling Sport.

This invention discloses a water bicycle, relating to the field of water sports equipment technology. It includes a buoyancy platform main frame, a steering mechanism at the top front end of the main frame, a seat fixedly connected to the middle area of ​​the main frame, a drive chain gear mechanism below the seat, and a rudder mechanism at the other end of the main frame. The main frame is fixedly connected to a steering bracket, a steering rod rotatably connected to the steering bracket, and a rudder plate fixedly connected below the steering rod. By sitting on the seat and stepping on the drive chain gear mechanism, the user indirectly drives a first adjustable rod and an outer fixed inner arc bearing to swing via an auxiliary rod. The outer fixed inner arc bearing pushes the rudder to swing left and right on a universal joint, simulating human rowing. By replacing human rowing with mechanical transmission, the efficiency of rowing can be greatly improved, and human labor consumption reduced.

The present invention consists of a sports rowing boat comprising a modular hull configured to receive a frame, where the frame is configured to receive at least one carriage assembly and at least one support assembly. The modular hull is formed by a bow module, one or more intermediate modules, at least one carriage module, at least one support module and a stem module. The frame is formed by two telescopic posts, where each telescopic post is formed by a plurality of frame portions. In this form, the quantity of carriage modules and support modules depend on the quantity of carriage assemblies and support assemblies that are had for each required configuration or boat size. All the modules, inserts, caps, frame portions components of the assemblies are joined or coupled in a temporary manner, such that the rowing boat can be assembled and disassembled to facilitate its transportation.

The utility model relates to a ship oar structure technical field, concretely is a kind of ship oar, ship oar includes paddle and oar pole, its characterized in that the paddle includes integrally-formed paddle body part and paddle insertion part, the insertion boss of the paddle insertion part is respectively symmetrically equipped on the upper and lower sides of the connecting place of paddle body part and paddle insertion part, the axis of two insertion bosses is arranged on the vertical plane of the axis of paddle body part and is parallel with the axis of paddle body part, the insertion slot hole of the symmetrical position of the upper and lower sides of the connecting position of the oar pole end and paddle insertion part is equipped with respectively with two insertion bosses, the rear end of oar pole is equipped with the round hole in same straight line with the insertion slot hole of upper side, the end of oar pole is inserted into paddle insertion part by insertion slot hole and insertion boss cooperation, it has simple structure, installation speed is fast, paddle axis and marble axis are in same vertical plane, and the advantages such as good feeling of stirring.

This improved oarlock places the oar in front of the pin, as opposed to traditional oarlocks, which place the oar behind the pin. With the positions of the pin and the oar reversed, when the oarlock swivels, the effective inboard length of the oar is lengthened at the catch and reduced at the release, increasing the mechanical advantage at the catch. The benefit of relocating the oar is increased by lengthening the oarlock to place the oar farther in front of the pin. A tab attached to the forward outboard side of the oarlock contacts the oar and keeps the oar perpendicular to the oarlock, preventing a delay and reduction in stroke distance. An adaptor allows a prior art oarlock to be mounted so that the assembly can be placed on a pin attached to a boat, and used to gain the advantages of the improved oarlock of this invention.

Provided are: a rectifier that facilitates operation of an oar; and an oar that comprises the rectifier.　Provided are long and narrow rectifiers 1 that are fixed to a blade 100 of an oar 200 and rectify the flow of water, the rectifiers 1 being characterized by protruding from a front surface 101 of the blade 100 and being fixed so that the tip side thereof is inclined upward. Provided also are rectifiers 2 that are characterized by protruding from a rear surface 102 of the blade 100, and are fixed so that the tip side thereof is inclined downward. Furthermore, in a longitudinal cross section, the projection length L1 from the blade 100 most protrude on the lower side than the middle, and is greatest in the middle and gradually decreases toward both outer sides in the longitudinal direction. An upper surface 11 formed on the upper side is inclined with respect to the blade 100 and has an arch shape projecting upward as seen in the vertical direction of the blade 100.

The utility model belongs to the field of ship equipment, and a kind of boat oar for rescue provided in the application, it include: paddle rod and paddle blade, paddle rod is connected with paddle blade, paddle rod includes fixed rod and movable rod, fixed rod is sleeved in the outside of movable rod, movable rod is telescopic rod, telescopic rod includes one or more inner rods;Movable rod is provided with float ring at one end away from paddle blade.The telescopic rod has extension position and contraction position.When telescopic rod is located in telescopic position, i.e. When telescopic rod is in extension position, i.e. telescopic rod is stretched out from fixed rod, the length of paddle rod is changed. The boat oar for rescue provided in the application has telescopic rod, can rescue person fallen into water at long distance, adopt float ring design, realize to let person fallen into water easily grasp, rescue quickly, rescue is convenient and fast.

A paddle for propelling a watercraft that has a nonlinear shaft which allows the paddle blade to be positioned underneath the watercraft and brought very close to, or directly under, the centerline of the craft. This has advantages in efficiency of propulsion and speed of forward travel by greatly reducing unwanted yaw and lateral travel.

The utility model discloses a kind of oar connecting structure, to solve the insufficient axial bearing capacity of connecting piece on oar, the deficiency of poor connection reliability. The utility model includes paddle unit and paddle tube unit, connecting piece is connected between paddle unit and paddle tube unit, and the inner wall of connecting piece is provided with clamping convex, the one end of paddle tube unit is provided with mounting groove, and the one end of mounting groove is bent to form clamping portion, and clamping convex is inserted in clamping portion to realize the axial positioning of connecting piece. The axial force that connecting piece on oar can bear is big, and the reliability of connection is guaranteed.