CN111017172A - Bionic fish tail scull - Google Patents

Abstract

The invention relates to a propeller for a manpower boat, in particular to a bionic fish tail scull which can effectively push a boat to move ahead by utilizing up-and-down shaking; it can be installed at the stern or at the bow. Bionic fish tail scull: the device comprises a fixed frame, a prying rod frame, a handle, a lifting rod, a tail vane connecting piece and a fishtail vane, wherein the fixed frame is used for being fixed at the stern or the bow of a ship, and the prying rod frame is connected with the fixed frame through a shaft and a bearing and can change the angle with the ship body; the prying rod frame is a parallelogram frame with a changeable angle, bearings are embedded in four joints of the prying rod frame, one side of the prying rod frame is connected with a handle, and the other side of the prying rod frame can be linked with the lifting rod to vertically lift. The fishtail blade forms a downward angle or an upward angle along with the ascending or descending of the lifting rod and generates forward thrust. The invention is used on a small boat, and compared with the traditional scull and oar, the invention has the characteristics of more stable running, higher speed and more convenient operation of the small boat.

Description

Bionic fish tail scull

Technical Field

The invention relates to a propeller for a manpower boat, in particular to a bionic fish tail scull for effectively pushing a boat to advance by utilizing the kinetic energy of up-and-down shaking.

Technical Field

Background art: the traditional sculls are sculls which are rocked towards two sides by people (pulled over by pushing), are only suitable for being used on slightly larger ships, and the slightly larger ships basically adopt a mode of propelling by a motorized propeller nowadays, but small ships are not suitable for being used as the sculls, because the mode of propelling the sculls can enable the small ships to move towards two sides, and the mode of rowing by the paddles is not high in efficiency because the mode of rowing is discontinuous and not continuous.

Disclosure of Invention

The invention content is as follows: the invention aims to imitate a swimming method of whale and dolphin tail up-and-down shaking, and provides a bionic fish tail scull capable of generating effective propelling force by utilizing up-and-down swinging. The technical scheme of the invention is that the lifting rod vertically moves up and down by utilizing the relative balance and stabilization effect of the ship body and the self weight of people and the buoyancy of the ship body by water in a prying rod frame mode, so that fishtail blades at the bottom of the lifting rod form an angle under the resistance of the water and generate thrust. The technical scheme of the invention is realized as follows: bionic fishtail scull, including the mount, the crowbar frame, the handle, the lifter, the tail vane connecting piece, the fishtail vane, the mount is used for fixing at the stern (or the bow), the crowbar frame passes through axle and bearing connection mount, make it can rotate with the mount, can change the angle with the hull, the crowbar frame looks like a parallelogram frame that can change the angle, bearing (or copper ring) have all been inlayed to its four self contacts, the handle is connected to its one end, the lifter of being connected with it can the interlock to the other end, tail vane connecting piece is connected and stretches into the aquatic on the top of lifter, there is the upper and lower backer of fishtail vane on the tail vane connecting piece, the fishtail vane passes through copper ring and axle connection tail vane connecting piece. When the handle is shaken upwards, one end of the prying rod frame is linked with the lifting rod to descend, the fishtail blade can be turned upwards and lean against the upper backer due to the resistance of water, an upward 45-degree angle is formed between the fishtail blade and the horizontal direction, and forward thrust is generated; when the handle is shaken downwards, one end of the prying rod frame is linked with the lifting rod to lift upwards, and the fishtail blade can be turned downwards and lean against the lower backer due to the water resistance, so that a downward angle is formed between the fishtail blade and the horizontal direction, and a forward pushing force is generated; the handle is continuously shaken up and down to obtain continuous forward thrust, so that the boat can move forward quickly. If the ship needs to turn left, the handle is only required to turn right, and the handle is continuously shaken up and down; and vice versa for right turns.

The invention has the beneficial effects that: imitating the tail swinging mode of whales and dolphins during swimming, so that the tail blades of the fishes form a downward or upward angle with the horizontal direction along with the ascending or descending of the lifting rod and generate forward thrust; compared with the traditional scull and oar, the small boat has the characteristics of more stable running, higher speed, more convenient operation and the like.

Drawings

Description of the drawings:

FIG. 1 is a schematic view of the rolling effect of the present invention mounted on the stern

FIG. 2 is a schematic view of the rolling effect of the present invention according to the installation under the stern

FIG. 3 is a schematic view of the fishtail leaf of the present invention

In the figure; 1-fixed mount, 2-pry bar frame, 3-handle, 4-lifting rod, 5-tail leaf connecting piece and 6-fishtail leaf.

Detailed Description

Embodiment 1 refers to 1, 2, 3 bionical fish tail scull, including mount 1, crow bar frame 2, handle 3, lifter 4, tail leaf connecting piece 5, fish tail leaf 6, mount 1 is fixed at the stern, and the mount 1 is connected through axle and bearing to the crow bar frame 2, and handle 3 is connected with crow bar frame 2, and the 4 tops of lifter are connected with the one end of crow bar frame 2, and the tail leaf connecting piece 5 that has the upper and lower backer is fixed on the top of lifter 4, and fish tail leaf 6 passes through copper ring and shaft connection tail leaf connecting piece 5. When the handle 3 is shaken upwards, one end of the prying rod frame 2 is linked with the lifting rod 4 to descend, at the moment, the fishtail blade 6 forms an upward angle with the horizontal direction due to the resistance of water and the blocking of an upper leaning mountain, and the lower pushing force of the fishtail blade 6 is converted into a forward pushing force (see fig. 1); when the handle 3 is shaken downwards, one end of the prying rod frame 2 is linked with the lifting rod 4 to ascend, at the moment, the fishtail blade 6 forms a downward angle with the horizontal direction due to the resistance of water and the blocking of the lower backrest, and the upward thrust of the fishtail blade 6 is converted into forward thrust (see fig. 2). The handle 3 is continuously shaken up and down, so that the fishtail blade 6 generates continuous and uninterrupted forward thrust; thereby obtaining a higher forward thrust on the boat than the conventional sculls or paddle efficiency. If the ship needs to turn left, the handle 3 is only required to turn right and continue to shake the handle 3 up and down; on the contrary, when the ship is required to turn right, the handle 3 is only required to turn left and the handle 3 is continuously shaken up and down.

Claims (1)

1. Bionic fishtail scull, including mount, sled bar frame, handle, lifter, tail leaf connecting piece, fishtail leaf, its characteristics are: the fixing frame can be fixed at the stern or the bow, and the prying bar frame is connected with the fixing frame through a shaft and a bearing and can change the angle with the hull; the prying rod frame is composed of two longitudinal rods and two transverse rods, and forms a parallelogram frame with a variable angle, bearings are inlaid in four joints of the parallelogram frame, one side of the prying rod frame is connected with a handle, the other side of the prying rod frame can be linked with a lifting rod to vertically lift, a tail vane connecting piece with an upper backer and a lower backer is fixed at the top end of the lifting rod, a fishtail vane is connected with the tail vane connecting piece through a copper ring and a shaft, and the fishtail vane can form a downward or upward angle along with the lifting or descending of the lifting rod and generate forward thrust.

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