CN2179331Y - water propulsion - Google Patents

Abstract

A water propulsion device (10) comprising a main body (11) adapted to be ridden by a user, said main body having front and rear parts (12 and 13), mounted on the front part (12) of the main body (11) for use A hand-operated rudder (14) for a person to steer the propulsion device (10), a foot-operated propulsion mechanism (15) for the user to propel the propulsion device (10), and to keep the propulsion device (10) afloat A flotation device (17) for use on water.

Description

The utility model relates to a water propulsion device for users to ride and travel for water sports and entertainment.

As everyone knows, the existing water propelling device is for the user to sit in the device and drive for water sports and entertainment. In order for the user to be able to sit in it, the device must be rather wide and therefore not very fast.

The purpose of the utility model is to provide a water propelling device.

The water propulsion device provided by the utility model includes a main body suitable for the user to ride. The main body has front and rear parts, and a manual rudder is installed on the front part of the main body for the user to drive the device, and for the user to propel the device. a foot-operated propulsion mechanism, and a flotation device to keep the device afloat on the water.

The body is preferably substantially flat and arranged to advance in a substantially vertical position.

The rudder preferably includes two handles mounted on opposite sides of the rudder.

The propulsion mechanism preferably includes an axle and a pair of pedals, each pedal being connected by a crank to a respective end of the axle.

According to one form of the invention, the propulsion mechanism comprises at least one rearwardly directed propeller and a drive wheel in driving engagement with said at least one propeller.

The propulsion mechanism preferably includes a pair of said propellers mounted on opposite sides of the drive wheel.

According to another form of the invention, the propulsion mechanism includes a drive blade having an axle.

The drive blade preferably comprises a plurality of blades arranged at equal angular intervals.

The blades are preferably curved and project radially outwardly from the wheel axis.

In a specific structure, the flotation device is installed on the front and rear parts of the main body.

The flotation device preferably consists of a box.

Preferably also the flotation material with airtight air bag is housed in each flotation box.

Below with reference to accompanying drawing, illustrate the utility model in more detail, in these accompanying drawings;

Fig. 1 is a front perspective view of the first embodiment of the utility model water propulsion device;

Fig. 2 is a side view of the water propulsion device in Fig. 1, showing that the user is driving in water;

Figure 3 is a partial front perspective view of the water propulsion device of Figure 1, but with its rudders in a different orientation;

Figure 4 is a partial, partially omitted side view of the rear portion of the water propulsion device of Figure 1;

Fig. 5 is a partial cross-sectional plan view of the rear part of the water propulsion device of Fig. 1;

Fig. 6 is a partial rear perspective view of the water propulsion device of Fig. 1;

Fig. 7 is a side view of the second embodiment of the water propulsion device driven by the user in the water of the present utility model;

Figure 8 is a partial rear perspective view of the water propulsion device of Figure 7;

Fig. 9 is a partially omitted side view of the rear end of the water propulsion device of Fig. 7;

Figure 10 is a cross-sectional end view of the water propulsion device of Figure 7 .

Referring first to Figures 1 to 3, a water propulsion device 10 embodying the present invention is shown in the figures. The device 10 comprises an elongated body 11 having a front part 12 and a rear part 13 , a rudder 14 mounted on the body front part 12 and a propulsion mechanism 15 mounted on the body rear part 13 . The body 11 is generally flat and is arranged to travel through the water in an approximately vertical or upright position. On each top end of the main body front part 12 and rear part 13, a buoyancy box 16 extending sideways is housed, and a buoyancy material 17 with a sealed air bag is housed in the buoyancy box, so that the water propulsion device 10 is effectively floated and the device 10 Stay upright in water.

A rudder 14 is pivotally mounted for some degree of rotation about a vertical axis, and a pair of handles 18 are mounted on the rudder to enable the driver to steer the water propulsion unit 10 .

Reference is now made to FIGS. 4-6 . The propulsion mechanism 15 consists of a vertical drive wheel 19 and a pair of rearwardly directed propellers 20 . Each side of the drive wheel 19 forms a gear meshing toothed ring 21 along its circumferential portion, and each propeller 20 includes an end pinion 22 . The propellers 20 are positioned on opposite sides of the drive wheel 19 , and their end pinions 22 mesh with teeth 21 on the respective sides of the drive wheel 19 . The sleeve portion 26 is an end extension of the main body rear portion 13 which surrounds the propeller 20 and thus constitutes the passage of the water driven by the propeller 20 . The propulsion mechanism 15 also includes a pair of pedals 23 connected by respective cranks 24 to opposite ends of a drive wheel shaft 25 securely passing through the drive wheel 19 .

As shown in Figure 2, in use the rider rides on the water propulsion device 10, leaning down on the middle part of the main body 11 so as to be able to hold the handle 18 to turn the rudder 14, thereby steering the water propulsion device 10, and The pedals 23 can be pushed to push the water propulsion device 10 to move forward.

Referring now to Fig. 7 to Fig. 10, the water propulsion device 30 of the second embodiment of the present utility model is shown among the figure, and the structure of this device is all similar to the structure of first device 10 except the propulsion mechanism represented by number 31 .

The propulsion mechanism 31 consists of a wheel-shaped drive blade 32 having five equally angularly spaced blades 33 projecting radially outward from a fastened drive axle 34 . The blades 33 are reinforced by a disc-shaped central web 38 . Crank-shaped pedals 35 are mounted on opposite ends of the wheel shaft 34 . The rear end portion of device 30 main body is open, thereby constitutes the outlet 36 of the water leaving driving mechanism 31, and has opened on two sides near the main body rear end wall of driving paddle 32, forms two side inlets 37 So that water flows into the drive mechanism 31. The blades 33 are bent towards the direction of rotation of the drive paddle 31, thereby increasing the propulsion effect.

The operation of the marine propulsion device 30 is the same as that of the device 10 .

The invention has been given above by way of example only, but those skilled in the art may make various modifications and/or changes to the above-described embodiments without departing from the scope of the invention as defined by the appended claims.

Claims (12)

1, water propeller, it is characterized in that it comprises: be suitable for the main body that the end user drives, this main body has forward and backward part, be contained in the body front part branch and upward drive the hand-operated yaw rudder that this water propeller is used for the end user, the propulsive mechanism that supplies the end user to advance this water propeller to use with the pin operation, and keep this device to swim in the flotation gear of usefulness waterborne.

2, water propeller as claimed in claim 1 is characterized in that, main body is flat basically, and is configured to advance along vertical substantially position.

3, water propeller as claimed in claim 1 is characterized in that, yaw rudder comprises two handles, and handle is contained on the relative two sides of yaw rudder.

4, water propeller as claimed in claim 1 is characterized in that, propulsive mechanism comprises a wheel shaft and a pair of pedal, each pedal by crank connecting link on the respective end of wheel shaft.

5, water propeller as claimed in claim 1 is characterized in that, propulsive mechanism comprises screw propeller and the drive wheel that at least one points to backward, this drive wheel and above-mentioned at least one screw propeller driving engagement.

6, water propeller as claimed in claim 5 is characterized in that, propulsive mechanism comprises a pair of above-mentioned screw propeller, and this screw propeller is installed on the opposite flank of drive wheel.

7, water propeller as claimed in claim 1 is characterized in that, pushing mechanism comprises the driving blade with wheel shaft.

8, water propeller as claimed in claim 7 is characterized in that, drives blade and comprises a plurality of equal angles blade at interval.

9, as wanting profit to require 8 described water propellers, it is characterized in that, blade be crooked and the trailing wheel diameter of axle to protruding.

As the described water propeller of above-mentioned each claim, it is characterized in that 10, flotation gear is contained on former and later two parts of main body.

11, water propeller as claimed in claim 1 is characterized in that, flotation gear is made of a flotation tank.

12, water propeller as claimed in claim 11 is characterized in that, flotation tank is equipped with the floating material with pressure bladder.

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