CN216684789U

CN216684789U - Power device of paddle board

Info

Publication number: CN216684789U
Application number: CN202220064714.9U
Authority: CN
Inventors: 胡波杰; 乐骏驰
Original assignee: Ningbo Haibo Group Co ltd
Current assignee: Ningbo Haibo Group Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-06-07
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to a power device of a paddle board, which comprises a motor, a flow guide cover and a propeller arranged on an output shaft of the motor, and is characterized in that: the kuppe is including the preceding kuppe of cover on the shell of motor and the back kuppe that is close to screw department, and the bore of preceding kuppe is greater than the bore of back kuppe, preceding, back kuppe still retrain respectively in the preceding port and the back port department of a hollow casing, the bore of this casing diminishes from preceding port to back port gradually. Therefore, after the front and rear air guide sleeves are matched with the shell, the water supply flow has an extrusion effect from front to back, and is driven to discharge by the rotation of the propeller, so that the propeller plate is favorable for improving the propulsion efficiency of the propeller plate, and particularly, the shell is designed into a matching structure of the left and right shells and the sliding block, and is also favorable for quick assembly and connection between the air guide sleeves and the motor shell.

Description

Power device of paddle board

Technical Field

The utility model relates to the technical field of power devices, in particular to a power device for a paddle board.

Background

The paddle board is a water sports equipment, which is divided into a hard paddle board and an inflatable paddle board. In order to make the paddle board move rapidly, a power device is usually configured on the paddle board, for example, as disclosed in "an inflatable paddle board for rescue" in chinese patent publication No. 2011139586U, a moving device (i.e., a power device) is disposed on the inflatable paddle board, the moving device includes a first water-breaking plate, a second water-breaking plate, a connecting rod, a turbine motor and a turbine fan, and the turbine fan is driven to rotate by the rotation of the turbine motor, so as to provide moving power for the paddle board.

In order to improve the propulsion efficiency, a wind deflector is generally arranged on the power device, and is particularly common on the power device of a ship body. However, the current air guide sleeve and the motor are complex to assemble and are often only covered on the propeller of the motor, so that the air guide sleeve is still to be further improved to adapt to the use of a light paddle board.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a power device of a paddle board with high propelling efficiency aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a power device of a paddle board, which has high propulsion efficiency and convenient assembly, aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a power device of paddle board, includes motor, kuppe and installs the screw on the output shaft of motor, its characterized in that: the kuppe is including the preceding kuppe of cover on the shell of motor and the back kuppe that is close to screw department, and the bore of preceding kuppe is greater than the bore of back kuppe, preceding, back kuppe still retrain respectively in the preceding port and the back port department of a hollow casing, the bore of this casing diminishes from preceding port to back port gradually.

In the above aspect, a further improvement is that the housing is composed of a left housing and a right housing which can be spliced relatively and can be detachably connected, the top surfaces of the left housing and the right housing are both provided with grooves, and a slider is provided with two extending walls which extend downwards and can be inserted into the grooves of the left housing and the right housing respectively, so that the left housing and the right housing can be spliced and combined together quickly by using the slider. If necessary, a through hole penetrating through a side wall of at least one of the grooves and one of the corresponding extending walls of the slide block along the left and right directions can be formed on the shell, and a bolt can be screwed into the through hole, so that the left and right shells and the slide block can be fastened and fixed into a whole by only one bolt.

In each of the above solutions, it is further preferable that the front fairing includes a front fairing body, a front fixing sleeve sleeved on the housing of the motor, and a plurality of front rib plates connected between the front fairing body and the front fixing sleeve, the outer diameter of the front fairing body gradually decreases from front to back, the plurality of front rib plates are distributed at intervals along the circumferential direction, and each front rib plate extends in the radial direction.

In order to better guide the water flow, the bottom of the front end of each front rib plate also extends forwards to a guide part at the front end of the front fixing sleeve, and the radial dimension of the guide part is gradually increased from front to back so as to reduce the flow resistance.

In order to enable the front fixing sleeve to be easily sleeved on a shell of the motor, a plurality of U notches are formed in the wall surface of the rear port of the front fixing sleeve at intervals along the circumferential direction, and the front rib plate is located on the wall surface between the adjacent U notches. The U notch is utilized, so that the rear port of the front fixing sleeve has certain elasticity, and the front fixing sleeve is convenient to assemble.

In order to be better combined with the motor, the motor is provided with an installation part, and meanwhile, in order to avoid interference with the installation part of the motor, the front fairing is also provided with an avoiding seam for inserting the installation part of the motor.

Preferably, the left and right housings have retaining walls respectively disposed in front of the front cover and holding the mounting portion of the motor therebetween. Utilize the fender wall on the left and right casing, both can carry out spacingly to the front shroud body, can link to each other through fasteners such as bolt between again and the installation department.

In order to further reduce the flow resistance, the sectional profile of the spliced baffle walls on the left shell and the right shell is in a V shape which is gradually increased from front to back.

In each of the above schemes, the rear air guide sleeve may include a rear cover body, a rear fixing sleeve, and a plurality of rear rib plates connected between the rear cover body and the rear fixing sleeve, the plurality of rear rib plates are circumferentially distributed at intervals, and each rear rib plate extends radially; the outer diameter of the rear cover body gradually decreases from front to back, and the diameter of the front port of the rear cover body is smaller than that of the rear port of the front cover body.

In order to facilitate assembly, the outer wall surface of the rear cover body and the inner wall surface of the shell are further improved to be provided with a limiting groove and a limiting bulge which are mutually inserted and connected.

Compared with the prior art, the front and the rear air guide hoods are respectively arranged at the motor and the position close to the propeller and are constrained into a streamline structure which is gradually reduced from front to back through the shell, and after the front and the rear air guide hoods are matched with the shell, water supply flow is extruded from front to back and is then driven to be discharged through the rotation of the propeller, so the propeller plate propulsion device is beneficial to improving the propulsion efficiency of the propeller plate, and particularly, the shell is designed into a matching structure of the left and the right shells and the sliding block, and is also beneficial to the quick assembly connection between the air guide hoods and the motor shell.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the slider shown in FIG. 1 after being lifted;

FIG. 3 is a further exploded perspective view of FIG. 2;

FIG. 4 is another perspective exploded view of FIG. 3;

fig. 5 is a perspective view of fig. 2 in another direction.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Directional terms such as "front," "rear," "left," "right," "upper," "lower," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are to be determined based on the example orientation shown in fig. 1. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

As shown in fig. 1 to 5, the power device of the paddle board is used for being mounted on the paddle board (not shown in the figure), and comprises a motor 1, a guide vane and a propeller 2, wherein the propeller 2 is mounted on an output shaft of the motor 1, the motor 1 is mounted on the paddle board through a connecting rod 3, and the motor 1, the propeller 2 and the connecting rod 3 are all in the prior art and are not explained herein. In the embodiment, the main improvement lies in the air guide sleeve, the air guide sleeve comprises a front air guide sleeve 4 sleeved on the shell of the motor 1 and a rear air guide sleeve 5 adjacent to the propeller 2, the caliber of the front air guide sleeve 4 is larger than that of the rear air guide sleeve 5, the front air guide sleeve 4 and the rear air guide sleeve 5 are respectively restricted at the front port and the rear port of a hollow shell, and the caliber of the shell is gradually reduced from the front port to the rear port. Therefore, the whole air guide sleeve is designed into a streamline structure which is gradually reduced from front to back, and the extrusion force from front to back is applied to the water flow, so that the forward moving efficiency of the paddle board is improved.

For the convenience of assembly, the shell body is composed of a left shell body 6 and a right shell body 7 which can be oppositely spliced and can be detachably connected, grooves a are formed in the top surfaces of the left shell body and the right shell body, a sliding block 8 is provided with two extending walls 81 which extend downwards and can be respectively inserted into the grooves of the left shell body and the right shell body, the sliding block 8 can be designed into an I shape or an inverted U-shaped structure in the drawing, when the left shell body and the right shell body are spliced, the lower ends of the left shell body and the right shell body are mutually connected through bolts, and the upper ends of the left shell body and the right shell body can be connected together by inserting the extending walls 81 of the sliding block 8 into the corresponding grooves a. In order to further improve the fastening performance after the left and right shells are connected, a through hole b which penetrates through a side wall (the side wall of the left shell 1 in the figure) of at least one groove a and an extension wall 81 of the slide block 8 inserted into the groove of the left shell along the left and right directions is arranged on the left and right shells, and a bolt is screwed into the through hole b, namely, the problem of fixing the slide block and the left and right shells can be easily solved only by using one bolt.

In the present embodiment, the front deflector 4 is preferably designed as follows: the motor comprises a front cover body 41, a front fixing sleeve 42 sleeved on a shell of the motor 1 and a plurality of front rib plates 43 connected between the front cover body 41 and the front fixing sleeve 42, wherein the outer diameter of the front cover body 41 is gradually reduced from front to back, the plurality of front rib plates 43 are distributed at intervals along the circumferential direction, each front rib plate 43 extends in the radial direction, eight front rib plates 43 in the drawing are designed, and other numbers can be designed naturally. For better guiding effect, the bottom of the front end of each front rib 43 extends forwards to a guiding part 431 at the front end of the front fixing sleeve 42, and the radial dimension of the guiding part 431 is gradually increased from front to back. In order to allow the front fixing sleeve 42 to be easily fitted on the housing of the motor 1 and to have a suitable tightness, a plurality of U notches 421 are circumferentially spaced on a wall surface of a rear port of the front fixing sleeve 42, and the front rib 43 is located on a wall surface between adjacent U notches 421.

In consideration of the organic coupling of front cowl 4 and motor 1, motor 1 is provided with mounting portion 11, and front cowl 4 is provided with escape slit 44 into which mounting portion 11 of motor 1 is inserted. Meanwhile, the left and right shells are respectively provided with a retaining wall c which is retained at the front end of the front cover body 41, and the retaining walls c on the left and right shells clamp the installation part 11 of the motor 1 in the retaining wall c after being spliced, so that the retaining walls c on the left and right shells play a role of limiting the front cover body 41, can correspond to the installation part 11 of the motor and are provided with installation holes for bolts to pass through, and the left and right shells are fixed into a whole.

In order to prevent the flow resistance from increasing after the blocking walls c on the left and right casings are spliced, the sectional profiles of the spliced blocking walls c on the left and right casings are designed into a V shape which gradually increases from front to back, please refer to fig. 5.

Similarly, the rear air guide sleeve 5 in the embodiment is preferably designed into a structure including a rear cover body 51, a rear fixing sleeve 52 and a plurality of rear rib plates 53 connected between the rear cover body 51 and the rear fixing sleeve 52, the plurality of rear rib plates 53 are distributed at intervals along the circumferential direction, each rear rib plate 53 extends in the radial direction, the number of the rear rib plates 53 in the drawing is five, and of course, other numbers may be required to be designed; the outer diameter of the rear cover body 51 is gradually reduced from front to back, and the front port diameter of the rear cover body 51 is smaller than the rear end diameter of the front cover body 41, so that the whole structure meets the requirement of a flowing water type.

In order to quickly restrain the rear cover 51 on the casing, a limiting groove and a limiting protrusion are formed between the outer wall surface of the rear cover 51 and the inner wall surface of the casing, wherein the limiting groove and the limiting protrusion are connected in an inserting manner, specifically, the limiting protrusion 511 is located on the outer wall surface of the rear cover 51 and is designed into a flange formed by surrounding the rear cover 51 along the circumferential direction, and the corresponding limiting groove d is located on the inner wall surface of the rear port of the casing, namely, the limiting groove d is formed on the inner walls of the left casing and the right casing. During installation, as long as the front fixing sleeve 42 of the front fairing 4 is sleeved on the shell of the motor 1, the left and right shells are oppositely arranged, the left and right shells are relatively closed after the limiting groove d corresponds to the limiting protrusion 511, the limiting protrusion 511 is inserted into the limiting groove d, the front fairing body 41 is positioned at the front port of the shell, then the two extending walls 81 on the sliding block 8 are inserted into the corresponding grooves a, and finally, the fastening is realized after the bolts pass through the mounting holes e on the left and right shells.

Claims

1. The utility model provides a power device of paddle board, includes motor, kuppe and installs the screw on the output shaft of motor, its characterized in that: the kuppe is including the preceding kuppe of cover on the shell of motor and the back kuppe that is close to screw department, and the bore of preceding kuppe is greater than the bore of back kuppe, preceding, back kuppe still retrain respectively in the preceding port and the back port department of a hollow casing, the bore of this casing diminishes from preceding port to back port gradually.

2. The power plant of claim 1, wherein: the shell is composed of a left shell and a right shell which can be spliced relatively and can be detachably connected, grooves are formed in the top surfaces of the left shell and the right shell, and a sliding block is provided with two extending walls which extend downwards and can be inserted into the grooves of the left shell and the right shell respectively.

3. The power plant of claim 2, wherein: the front fairing comprises a front fairing body, a front fixing sleeve sleeved on a shell of the motor and a plurality of front rib plates connected between the front fairing body and the front fixing sleeve, wherein the outer diameter of the front fairing body is gradually reduced from front to back, the front rib plates are distributed at intervals along the circumferential direction, and each front rib plate extends in the radial direction.

4. A power plant according to claim 3, characterized in that: the bottom of the front end of each front rib plate also extends forwards to form a guide part at the front end of the front fixing sleeve, and the radial size of the guide part is gradually increased from front to back.

5. A power plant according to claim 3, characterized in that: a plurality of U notches are formed in the wall surface of the rear port of the front fixing sleeve at intervals along the circumferential direction, and the front rib plate is located on the wall surface between the adjacent U notches.

6. A power plant according to claim 3, characterized in that: the motor is provided with an installation part, and the front fairing is further provided with an avoidance seam for inserting the installation part of the power supply motor.

7. The power plant of claim 6, wherein: and the left shell and the right shell are respectively provided with a blocking wall which is blocked in front of the front cover body and clamps the mounting part of the motor therein.

8. The power plant of claim 7, wherein: the section contour of the jogged blocking walls on the left shell and the right shell is V-shaped which gradually increases from front to back.

9. A power plant according to claim 3, characterized in that: the rear flow guide cover comprises a rear cover body, a rear fixing sleeve and a plurality of rear rib plates connected between the rear cover body and the rear fixing sleeve, the plurality of rear rib plates are distributed at intervals along the circumferential direction, and each rear rib plate extends in the radial direction; the outer diameter of the rear cover body is gradually reduced from front to back, and the diameter of the front port of the rear cover body is smaller than that of the rear port of the front cover body.

10. The power plant of claim 9, wherein: and a limiting groove and a limiting bulge which are mutually inserted and connected are arranged between the outer wall surface of the rear cover body and the inner wall surface of the shell.