90results 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.

Rowing drive for a tricycle, other body-powered vehicle or training device, characterized by the following features: - the longitudinal tube (L), which forms the front part of the chassis, branches out at the rear end into two steeply sloping tubes (Y), which transition into parallel, horizontally positioned tubes (H) that support the two rear wheels - The longitudinal tube (L) is surrounded by a slightly wider outer tube (O), which either ends behind the drive linkage or just before the end of that longitudinal tube (L) and in this variant also supports the driver's seat there. - said drive linkage, which hangs in the middle between the driver's seat and the front wheel with a solid axle (E) on the outer tube (0), consists of four parallelogram-shaped rods (a, b, c, d), of which the two longer ones (a, b) either extend upwards, as arm rod (a), or downwards, as leg rod (b), from the parallelogram and carry the handlebar (g) or the pedal rod (p) at their free end. - the two shorter parallel crossbars (c, d) connect the arm and leg bars (a, b) with four joints (A, B, C, D) and, when pulled or pushed, rotate with the handle and / or pedal bar (g, p) so that they pull the arm bar (a) downwards and the leg bar (b) upwards as both approach their mean path position and thereby straighten from the inclined position to the vertical; and because both movements continuously compensate for each other, they result in straight horizontal paths for the handle and pedal bar (g, p) - The axis (E) around which the lower crossbar (d) rotates divides it into unequal sections, which is why the arm rod (a) connected to the longer section has a larger oscillation amplitude than the leg rod (b) - above the axis (E) on the outer tube (O) stands a vertical rail (T) on which the joint (C) transformed into a slide (tsl) between the tip of the leg rod (b) and the upper crossbar (c) rises and falls during the drive movement - a device which first strictly determines the paths of the handle and pedal rod (g, p).

A rowing machine (10) comprising: a frame (20) having a first end (21) and a second end (22) defining a frame axis; a seat (25) slidably mounted to the frame (20), the seat (25) being configured to slide along the frame axis; at least one oarlock (30), 5 wherein the or each oarlock (30) is configured to receive an oar (40) such that the oar (40) can rotate in the oarlock (30); and a resistance mechanism (50) configured to provide resistance to the oar (40).

The present invention falls within the scope of floating sundecks suitable above all for the sea, but also for the lake, swimming pool or the like. In particular, the present invention intends to propose a spacious and stable floating sundeck that combines the stability of the same with characteristics of convenience of transport such as classic sundeck as well as the possibility of integration with objects that make the sundeck advantageous in multiple technical aspects.

1. An oarlock for locking an oar to a rowing vessel or rowing simulator when the oarlock is installed in the rowing vessel or rowing simulator, the oarlock comprising: a housing installable on the rowing vessel or rowing simulator; an angle measuring device configured to use the oar by a rower during a rowing stroke by the rower and to measure an angular displacement related to the oarlock when rowing the rowing vessel or rowing simulator; and a resetter capable of resetting the angle measuring device before the angle measuring device measures another angular displacement related to the oarlock during a rowing stroke by the rower or another rowing stroke, or configured to determine an offset and calculate an error or drift.

The utility model provides a kayak pedal device, and relates to the technical field of kayak devices, the kayak pedal device comprises a pedal device, a buckle, a spring and a rack track, the bottom of the pedal device is provided with a groove, the buckle is installed in the groove, one end of the spring is connected with the buckle, and the other end of the spring is connected with the pedal device; the rack track is arranged on the kayak and is provided with a plurality of racks; the buckle can be connected with a rack on the rack track in a clamped mode so that the pedal device can be fixed to the rack track. Through cooperation of the buckle, the spring and the rack track, rapid adjustment and firm fixation of the pedal device are achieved; a user only needs to press the buckle, the position of the pedal device can be easily adjusted, the friction force between the foot of the user and the pedal device is effectively increased through the design of an anti-skid structure on the pedal device, the sliding phenomenon in the using process is prevented, the safety and comfort of the user are guaranteed, and the requirements of kayak devices of different models can be met.

To provide a human power boat sailing by a vertical vibrating blade.SOLUTION: A human power boat by a vertical vibrating blade comprises: a buoyancy body 6 which is arranged on a water surface; a footboard which is arranged above the buoyancy body and on which a rider gets on; a propulsion blade which is connected to an axial member extending from the footboard and is arranged in the water; an auxiliary member which assists the vertical movement of the footboard; and a handle which is grasped by the rider, wherein the footboard moves downward when the rider steps on the footboard using his / her weight and the propulsion blade sinks, so that the propulsion force heading forward is generated, and the footboard moves upward by assistance of the auxiliary member when the rider gets off from the footboard.SELECTED DRAWING: Figure 1

A transmission for a human-powered vehicle. The transmission has a primary system that includes a transmission case, a crankshaft with cog, a pair of receiver cranks, a pair of connecting rods, a pair of oscillating driver cranks, and a pair of pedals. A secondary biasing system is engaged with the primary system to provide a favorable torque around dead centers of the primary system. The transmission 150 may be configured to transmit power by driveshaft, chain, or belt to drive a wheel or propeller. In a watercraft application, an operator alternatingly applies force to a pair of pedals while seated close to the floor of a kayak 145. Power from the transmission is transmitted through a steerable lower gear case 134 via a propeller to propel the craft. The operator maneuvers the craft by means of a control lever 135 operably connected to the lower gear case by cables 136.

The utility model discloses a rubber dinghy with an oar fixing mechanism, and relates to the field of rubber dinghy, the rubber dinghy comprises a dinghy body and an oar, a supporting assembly is arranged between the oar and the dinghy body, two locking assemblies are arranged on the outer surface of the dinghy body, and the supporting assembly comprises a fixing plate, a sliding block, a fixing block, a T-shaped rod, an inserting pipe and a clamping strip. The locking assembly comprises a mounting block, a rotating block, a lifting plate, a connecting plate, a pressing block, a connecting rope and a spring, locking and unlocking of a clamping strip are achieved through a threaded pin, a sliding block is fixed through cooperation of the clamping strip and a clamping groove in the outer surface of a fixing plate, and the position of a paddle supporting part is adjusted through movement of the sliding block; therefore, the position of the paddle can be adjusted according to the personal habits of a user, the user can use the paddle conveniently, the paddle is clamped and locked through the rotating block, when the paddle extrudes the pressing block, the pressing block drives the connecting rope to pull the rotating block, the rotating block is further locked, the paddle is prevented from falling off, and the locking strength is improved.

A sport apparatus, including a handle, an action portion, a connection portion connecting the handle to the action portion, at least part of the connection portion including a structural battery, the structural battery including one or more energy storage devices, each of the one or more energy storage devices having at least one anode core of a continuous carbon fiber, an electrolyte arranged on the at least one continuous carbon fiber core, and a cathode layer coating arranged to the at least one continuous carbon fiber core on the electrolyte, and at least one sensor unit electrically connected to the energy storage devices, the at least one sensor unit providing signals related to use of the sport apparatus.

A device includes a cleat and a receiver. The cleat is mountable to a shoe and includes a front portion and a rear footing. The receiver is mountable to a support of an external device. The receiver includes a frame including a front portion and a rear portion, with the rear portion configured to removably slidably receive the rear footing of the cleat. The front portion of the receiver includes a catch element, which is pivotally movable relative to the frame while under a rotational biasing force in a first orientation, to permit slidable entry of, and retention of, the front portion of the cleat relative to the frame of the receiver.

The invention relates to a paddle for a nautical craft, comprising a shaft (1) having at least one segment (2) extending between an inner end (2a) and an outer end (2b), a blade (4) being reversibly connected to the outer end (2b) of the segment in order to be able to form, or demount, the paddle by connection, or disconnection, of the blade (4) and of the segment, the paddle comprising geometric means (23) formed on the blade (4) and complementary geometric means (24) formed on the segment (2), the geometric means being designed to connect the segment to the paddle (4) in the demounted configuration.

The utility model relates to the technical field of paddle lock structures, in particular to a paddle rod with a paddle lock, which is provided with a front paddle rod, a rear paddle rod and the paddle lock, the paddle lock comprises a fixing sleeve, a locking sleeve and a locking component, the fixing sleeve is connected with the locking sleeve, a circumferential locking hole is arranged between the locking sleeve and the fixing sleeve, and the locking component is connected with the front paddle rod and the rear paddle rod. A circumferential locking hole is formed in the locking sleeve, a locking strip hole which is perpendicular to and communicated with the locking hole is formed in the locking sleeve in the middle of the circumferential locking hole, connecting protrusions are arranged on the locking sleeve on the two sides of the locking strip hole respectively, the connecting protrusions are connected through a locking assembly capable of driving the locking sleeve to retract inwards or expand outwards, and the rear end of the front paddle rod is inserted into and extends into the locking sleeve through the fixing sleeve. The front paddle rod part extending into the locking sleeve is provided with the strip-shaped hole with the open end, the front end of the rear paddle rod is inserted into the front paddle rod through the end of the locking sleeve, the locking sleeve and the end of the front paddle rod are locked at the same time through the locking assembly, then the rear paddle rod is locked, and the propeller has the advantages of being simple in structure, high in connection strength, not prone to being broken and the like.

The utility model provides an underwater bicycle which comprises a frame, a seat, a handrail, pedals and a wheel blade portion, the handrail is arranged at the front end of the frame, the seat is arranged at the rear end of the frame, and the pedals are correspondingly arranged on the two sides, between the handrail and the seat, of the frame respectively. The wheel blade part is arranged between the two pedals on the frame; the wheel blade part is provided with at least two blades, and the input ends of the two sides of the wheel blade part are both in drive connection with the pedals so that the blades can be driven by the pedals to rotate. The wheel blade part is further provided with a gear adjusting mechanism used for adjusting the inclination angle of each blade. According to the utility model, the wheel blade part is arranged in the underwater bicycle, and the motion resistance is formed through the counter-acting force of water to the blades; and the wheel blade part is provided with the gear adjusting mechanism, so that a rider can flexibly adjust the inclination angle of each blade according to different underwater environments and personal conditions, and the movement resistance is adjusted by changing the angle of each blade, so as to meet various movement requirements of users.

The invention discloses a propeller and a ship, and relates to the technical field of ship drive.The propeller comprises a driving device, a support and a power output device.The driving device comprises a shell, a steering driving mechanism, a manpower driving mechanism, a power driving mechanism, a transmission mechanism and a clutch switching mechanism, the manual driving mechanism and / or the power driving mechanism are / is selectively in transmission connection with the transmission mechanism through the clutch switching mechanism, the support is rotationally arranged on the shell and connected with the steering driving mechanism, the power output device is arranged on the support and located outside the shell, and the transmission mechanism is connected with the power output device. The manpower driving mechanism and / or the power driving mechanism can drive the power output device to operate and generate thrust through the transmission mechanism, and the steering driving mechanism is used for driving the support to rotate so as to drive the power output device to rotate and change the orientation of the power output device, so that the flexibility of controlling the ship body is improved.

Device for driving a ship's propeller by muscle power, characterized in that a pulley (3) with a wound-up pull rope (5) is unwound via a pulling device (13) and (5), a freewheel (4) is pressed into the pulley (3) which is in connection with a drive shaft (2) and a ship's propeller (9).

The utility model discloses a telescopic rescue device which is characterized in that the telescopic rescue device is of a symmetrical structure, and a console (1) of the telescopic rescue device is connected with a multi-branch rotating shaft (11) and an auxiliary rod (2); the multi-branch rotating shaft is located in the carrier (9), the carrier (9) is sealed by the cover plate (10), the branch end of the carrier (9) and one end of the connecting rod A (12) are fixed through the double-thread screw (13), the other end of the connecting rod (12) is connected with the ship wing (3) in a concentric circle mode, the telescopic paddle is placed on the upper portion of the ship wing (3), the lower portion of the ship wing (3) is connected with the hollow circle (8) through the connecting rod B (16), and the hollow circle (8) is fixed to the carrier. And the connecting rod B (16) is connected with the other end of the auxiliary rod (2) through an adapter (22). According to the utility model, the manned capacity can be expanded through stretching and retracting, and the telescopic paddle is provided.

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.

An oarlock for locking an oar to a rowing boat or a rowing simulator when the oarlock is installed on the rowing boat or the rowing simulator, the oarlock comprising: a housing that can be installed on the rowing boat or the rowing simulator; an angular measurement device configured to measure an angular displacement in respect of the oarlock when the oar is used by a rower during a rowing stroke by the rower to row the rowing boat or the rowing simulator; and a resetter configured to enable the angular measurement device to be reset or determine an offset to calculate out error or drift before the angular measurement device measures another angular displacement in respect of the oarlock during the rowing stroke or another rowing stroke by the rower.

The utility model relates to the technical field of fixing structures, and discloses a paddle fixing structure for a lifeboat, the top of a boat body is fixedly connected with a boat plate, the outer side surface of the boat plate is fixedly connected with a protection plate, the inner wall of the protection plate is fixedly connected with a sliding rail, the interior of the sliding rail is slidably connected with a sliding strip, and the sliding strip is fixedly connected with the boat plate. A fixing table is fixedly connected to the right end of the sliding strip, a first semicircular clamp is fixedly connected to the inner wall of the fixing table, and an inner sliding groove is formed in the protection plate. According to the device, the first semicircular clamp is arranged, the surface of the paddle is clamped in the first semicircular clamp, then the first threaded rod is rotated by rotating the first handle, the first threaded rod rotates in the first threaded sleeve, and when the first threaded rod rotates, the second semicircular clamp is driven to move towards the inner side; and the paddle is fixed on the inner walls of the semicircular clamp I and the semicircular clamp II, so that the paddle can be stably fixed on the surface of the lifeboat.

A manual propulsion system for a watercraft includes an axle horizontally mounted below a bottom surface of the watercraft in a direction perpendicular to a centerline of the watercraft, an elongated fin rotatable around the axle, the elongated fin being oriented along the centerline of the watercraft, a location of the axle dividing the elongated fin into a forward portion in front of the axle and an aft portion behind the axle in reference to a travel direction of the watercraft, the forward portion being shorter than the aft portion, a first foot pedal linked to the forward portion of the elongated fin, a forward motion by the first foot pedal lifting the forward portion of the elongated fin, and a second foot pedal linked to the aft portion of the elongated fin, a forward motion by the second foot pedal lifting the aft portion of the elongated fin.

A watercraft propulsion system includes a shaft slidably disposed through an opening formed in a hull, a pull-up cable coupled to the shaft at a predetermined location of the shaft for pulling the shaft upward, a pull-down cable coupled to the shaft at the predetermined location of the shaft for pulling the shaft downward, a fluke disposed beneath a bottom of the watercraft, the fluke having a front portion and a horizontal plate behind the front portion, the front portion being solely and removably attached to a lower end of the shaft, wherein when the shaft is pulled downward by the pull-down cable, the horizontal plate tilts upward, and when the shaft is pulled upward by the pull-up cable, the horizontal plate tilts downward.

The invention is based on the following objective: to develop a support system for manually operated rowing boats, such as paddle boats that move backwards or forwards while rowing, linear paddle boats, or pedal boats, which assists the users of these boats while rowing or pedaling. This system should only be activated when the rower or pedaler is actively rowing or pedaling and when the rower desires it. Equipping the boats with batteries or accumulators opens up new application possibilities. On the one hand, it will make rowing easier, and on the other hand, the operating range can be extended. The support is also very helpful in headwinds or opposing currents.

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.

The invention discloses an arrangement for preventing and protecting of calf bites during rowing boat including a slide endcap and a slide rail. Rowing boat “Calf Bites” are abrasions or cuts on the calves caused by the repetitive impact with the metal tracks of the boat's slide during the rowing stroke. The slide endcap of the present invention is prepared by three-dimensional printing and which is designed innovatively to protect the user and prevent calf-bites during boat rowing. The slide endcap provides flexibility to absorb impact during the rowing. The invention further discloses a rowing boat with a user having an arrangement for preventing and protecting of calf bites during rowing boat.

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.

Disclosed herein is a multifunctional stand-up paddleboard (MFSUP) comprising a paddleboard, a paddle, and a drive unit. At the stem of the paddleboard is a docking port configured to receive the drive unit that propels the paddleboard. In some embodiments, the paddleboard comprises a rigid midsection, and an inflatable bow and stem. The inflatable portions are inflated during use and deflated then folded over the midsection during storage. A control paddle having control switches send command signals by Bluetooth to the drive unit to control the velocity of propellors. A battery bank is disposed on the midsection and provides power to the drive unit. A solar panel can be included on a superior surface of the paddleboard to supply power to the battery bank. The drive unit is removable from the docking port for propelling a human through a water body. Other features and methods are also disclosed.