166results about "Muscle power acting propulsive elements" patented technology

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 inflatable carrier includes an inflatable main body, a foldable supporting device connected to the inflatable main body, and a plurality of elastic elements connected to the foldable supporting device and / or the inflatable main body. When the inflatable main body is inflated to expand, the foldable supporting device is forced to extend by the expanded inflatable main body and the elastic elements are deformed. When the inflatable main body is deflated, restoring forces of the elastic elements cause the foldable supporting device to be folded.

Invention relates to the paddle-wheel propelling mechanisms, especially to the steerable and retractable paddle-wheel mechanisms for propelling boats. The paddle-wheel propulsion and steering mechanism comprises a frame structure for securing the mechanism to the boat; a propulsion mechanism for propulsion of the boat; a paddle-wheel upward and downward moving mechanism for movement of the paddle-wheel relative to a waterline of the boat; and a steering mechanism for steering of the boat.

A self-contained paddle can be adjusted from a single paddle form with a handle on one end to a double paddle configuration having paddle blades on both ends. The paddle of the present invention allows for the handle end of a water recreation paddle to transform to a second paddle, forming a double paddle without bring a separate attachment during an outing and without interfering with the use of the paddle in the single paddle configuration when the paddle is in the single paddle configuration.

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 invention relates to the technical field of ship manufacturing, in particular to a marine driving system which comprises a plurality of propelling mechanisms distributed on the two sides of a ship body, and the propelling mechanisms are arranged close to seats. A deck of the ship body is provided with a plurality of manual driving mechanisms matched with the propelling mechanisms, the manual driving mechanisms are adjustably arranged on the front sides of the seats, and tourists control the manual driving mechanisms to work to drive the propelling mechanisms to rotate; an adjustable transmission mechanism is arranged on the side edge of each propelling mechanism, and the multiple sets of adjustable transmission mechanisms are evenly installed on the two sides of the ship body. The propelling mechanisms are arranged on the two sides of the ship body, the manual driving mechanisms are arranged on the side edges of the propelling mechanisms, after a tourist sits on the seat, the tourist controls the pedals to drive the manual driving mechanisms to provide power for rotation of the propelling mechanisms, and the ship body is driven to travel through the acting force between the propelling mechanisms and water; the interactivity and interestingness of tourists and sightseeing projects are improved, and the relevance with the ship running process is improved.

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 present disclosure is directed to a watercraft including: a hull; a first seat located on the hull, where the first seat is formed into the hull and is configured for operation of the watercraft in a kayaking manner of propulsion; and a second seat located on the hull, where the second seat is attached to the hull, where the second seat is configured for operation of the watercraft in a rowing manner of propulsion.

The invention belongs to the technical field of racing boats for water sports, and aims to provide a V-shaped multi-section flat bottom type racing boat which comprises a boat body, and a multi-section flat bottom type structure is arranged at the bottom of the boat body; the boat body comprises a front deck and a tail deck, a front cover sharp corner is arranged on the front deck, a paddle frame is arranged above the front cover sharp corner, the top end of the paddle frame is connected with a paddle frame head, and the paddle frame head is connected with a paddle bolt; a sliding seat is arranged at the rear end of the paddle frame, a flat plate is arranged at the rear end of the sliding seat, and the sliding seat and the flat plate are connected to form a seat cabin; side rack sliding rails are arranged on the two sides of the front end of the tail deck, and a pedal plate is arranged between the side rack sliding rails. The rowboat has the characteristics of compact structure, good streamline, small advancing resistance and the like, is integrally formed by a mold, is matched with preparation methods of three-layer material distribution, sectional medium-temperature curing and the like, has the characteristics of simple production process, environment-friendly production process, high production efficiency and the like, and can be widely applied to the technical field of rowboat production.

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

Shown and described is a hybrid roller (1) for a roller seat (20) of a rowing boat, comprising: a bearing element (3), and a roller body (4), wherein the roller body (4) surrounds the bearing element (3) at least in sections, wherein the roller body (4) has an outer section (5) and an inner section (6), wherein the outer section (5) has a roller body contact surface (7) for at least partially contacting a roller rail (2) for a rowing boat, and wherein the inner section (6) surrounds and / or contacts the bearing element (3) at least in sections. In order for the hybrid roller (1) to have reduced friction and at the same time offer a certain level of seating comfort, it is proposed that the outer section (5), preferably the roller body contact surface (7), at least in sections have a higher modulus of elasticity than the inner section (6).Also described is a rolling seat (20), a rolling rail (2) and a rolling seat storage system for a rowing boat.

The invention relates to a paddle (1) for locomotion using a water sports device, in particular a single-bladed paddle, comprising a paddle shaft (2), a paddle blade (4) provided at a first end (3) of the paddle shaft (2), and a buoyancy body (5), wherein the paddle blade (4) has a front face (6) and a rear face (7), and the front face (6) of the paddle blade (4) is the face on which the water pressure acts during the paddle stroke. The paddle is characterized in that the buoyancy body (5) is provided on the front face (6) of the paddle blade (4), and the buoyancy body (5) on the front face (6) of the paddle blade (4) has a face which faces away from the paddle shaft (2) and which is equipped with an impact surface (8) for pushing on the water during a paddle stroke, said impact surface extending at an angle α to the paddle blade (4).

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.

An aquatic device comprises: a bicycle (1), propulsion means (5) suitable to be actuated to move and steer the aquatic device (100) and a fixed frame (4) comprising floating means (3); the bicycle (1) is mounted to slide relative to the fixed frame (4); the aquatic device (100) comprises: movement means (9) connected to the bicycle (1) so that the bicycle (1) can perform upward and downward strokes relative to the fixed frame (4) between a raised position and a lowered position, transmission means (8) connected to the movement means (9) and connectable to a pedal assembly (14) to transmit motion from the pedal assembly (14) to the movement means (9), and enabling / disabling means (7) to enable / disable the transmission means (8).

To provide a paddle gripping aid that increases the range of motion of a user's arms during the process of paddling a paddle. [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 includes a protrusion that is sandwiched between a first finger and a second finger of a user of the paddle when the user grips the shaft, and an attachment part that attaches the protrusion to the shaft so that the protrusion protrudes from the shaft. The protrusion protrudes from an outer circumferential surface of the attachment part, and when the attachment part is attached to the shaft, the inner circumferential surface of the attachment part 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.

The novel manpower type paddle boat comprises a boat body, a platform is integrally formed in the boat body, a concave cavity is formed in the bottom of the boat body, a steering assembly capable of rotating is arranged on the front side of the upper surface of the platform, and a first sliding groove is formed in the middle of the upper surface of the platform; a first sliding groove is formed in the platform, a sliding rod capable of sliding in the first sliding groove is arranged in the first sliding groove, the bottom of the sliding rod extends out of the concave cavity, a sliding cushion is arranged at the top of the sliding rod and located on the upper surface of the platform, and a paddle assembly capable of rotating under the action of movement of the sliding rod is arranged below the sliding rod. According to the novel manpower type paddling boat, an operator can sit down to provide pushing force for the boat body through movement of the body, the force can be dispersed to other parts of the body, compared with hand paddling depending on arm muscles, fatigue can be reduced, the two hands of the operator are liberated, water interaction can be facilitated, and water entertainment is provided.

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 utility model discloses an anti-scratch type kayak, and particularly relates to the field of kayaks, the anti-scratch type kayak comprises a kayak body, the top of the kayak body is provided with an anti-collision strip, the front side and the rear side of the anti-collision strip are respectively provided with a supporting mechanism, and each supporting mechanism comprises a storage groove formed in the top of the anti-collision strip. When the paddle needs to be paddled, the two supporting rods on the same side are overturned inwards, so that the volute springs are compressed; then the two moving blocks slide downwards, the moving blocks drive the inserting blocks to retract into the sliding grooves, meanwhile, the supporting springs are compressed, then the two supporting blocks are turned over to be in a straight horizontal state, the opposite side surfaces of the two supporting blocks make contact, then the moving blocks are loosened, the supporting springs rebound, and therefore the inserting blocks are driven to move and be inserted into the inserting grooves of the other supporting block; and the supporting blocks are retracted into the storage grooves when being fixed, so that the effect that the paddling action is not hindered when the supporting mechanism is not used is achieved.

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 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.

A watercraft includes a hull, an opening extending through the hull, the opening configured to receive a removable propulsion mechanism, and an insert removably insertable into the opening. The insert includes an inner cavity, an aperture configured to be at least partially submerged in a fluid when the watercraft is positioned on the fluid, the aperture being configured to provide fluid communication between the inner cavity of the insert and the fluid as the watercraft travels in a forward direction, and a surface shaped and dimensioned such that a first pressure within the inner cavity is greater than a second pressure at the aperture as the watercraft travels in the forward direction.

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 present invention relates to a mechanism comprising a frame (10), levers (7), pedals (19, 17, 13), clutches (1) and / or freewheels, gears and / or pulleys, rotation shafts (8, 9, 11, 14, 15) and / or lever pushrods (20) which convert the reciprocating pushing movement into a rotational movement of the various vehicles or anything else that needs driving force by means of the muscular effort of the legs of at least one user in an upright (standing) position and / or one user in a horizontal (sitting) position or lying on their back or stomach in order to push the levers (7) which bounce back and forth about a horizontal axis (HX) and / or two parallel and symmetrical vertical axes (VX1 and VX2).

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.