Composite propulsion system and kayak

Abstract

The utility model provides a composite propulsion system and a kayak. The composite propulsion system comprises a frame, a main shaft, a manpower driving device, an electric driving device and a propeller device. The frame is fixed to the kayak, and the main shaft is arranged on the frame and can rotate around the axis of the main shaft. A first one-way bearing, a second one-way bearing and a third one-way bearing are installed on the main shaft and drive the main shaft to rotate in the same rotating direction. The manpower driving device is arranged on the frame, connected to the first one-way bearing and the second one-way bearing through a first transmission assembly and used for driving the main shaft to rotate. The electric driving device is arranged on the frame, connected to the third one-way bearing through a second transmission assembly and used for driving the main shaft to rotate. The propeller device comprises blades and is in transmission connection with the main shaft. And the electric driving device and the manual driving device can respectively or simultaneously drive the main shaft to rotate.

Description

Technical Field

[0001] The present application relates to the field of outdoor sports, and in particular to a composite propulsion system and a kayak. Background Art

[0002] Currently, kayak propulsion systems primarily rely on pedaling to drive the main shaft, which in turn rotates the propeller, propelling the kayak forward. This method relies primarily on manual power, resulting in unstable driving force and labor-intensive operation. Another type of propulsion system uses a purely electric mode, where the motor is activated via a switch. This makes the driving force unadjustable and the recreational effect less enjoyable. Utility Model Content

[0003] The main purpose of the present application is to overcome at least one of the above-mentioned defects of the prior art and to provide a composite propulsion system and a kayak that can be driven by manpower and electricity separately or simultaneously.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] According to one aspect of the present application, a composite propulsion system for a kayak is provided, comprising a frame, a main shaft, a human-powered drive device, an electric drive device, and a propeller device. The frame is fixed to the kayak. The main shaft is rotatably arranged on the frame and is capable of rotating around its own axis. A first one-way bearing, a second one-way bearing, and a third one-way bearing are mounted on the main shaft, and the first one-way bearing, the second one-way bearing, and the third one-way bearing drive the main shaft to rotate in the same direction of rotation. The human-powered drive device is arranged on the frame and is connected to the first one-way bearing and the second one-way bearing through a first transmission assembly, and is used to drive the main shaft to rotate. The electric drive device is arranged on the frame and is connected to the third one-way bearing through a second transmission assembly, and is used to drive the main shaft to rotate. The propeller device is located below the frame and is transmission-connected to the main shaft. The electric drive device and the human-powered drive device can drive the main shaft to rotate separately or simultaneously.

[0006] According to one embodiment of the present application, the human-powered drive device includes a force-applying component, a double-sided toothed transmission belt, and the first transmission component. The double-sided toothed transmission belt connects the force-applying component and the first transmission component, and the first transmission component is connected to the main shaft.

[0007] According to one embodiment of the present application, the force-applying assembly includes a pedal, a slider, and a guide rail, wherein the pedal is connected to the slider, the slider is capable of reciprocating along the guide rail, and the guide rail is fixed to the frame. The pedal is capable of reciprocating along the guide rail, and the slider is provided with meshing teeth, which mesh with the double-sided toothed transmission belt to drive the double-sided toothed transmission belt to reciprocate.

[0008] According to one embodiment of the present application, the first transmission assembly includes a first transmission pulley, a first transmission belt, a second transmission pulley and a second transmission belt, the first transmission pulley is connected to the main shaft through the first transmission belt and the first one-way bearing, the second transmission pulley is connected to the main shaft through the second transmission belt and the second one-way bearing, the double-sided toothed transmission belt drives the first transmission pulley and the second transmission pulley to rotate, and the rotation directions of the first transmission pulley and the second transmission pulley are always opposite.

[0009] According to one embodiment of the present application, the electric drive device includes a motor and the second transmission assembly, the second transmission assembly includes a third transmission wheel and a third transmission belt, the third transmission wheel is fixed on the shaft of the motor, and the motor drives the main shaft through the third transmission belt and the third one-way bearing.

[0010] According to one embodiment of the present application, the compound propulsion system further includes a shell having a slide groove, the frame is arranged inside the shell, the pedal is arranged outside the shell, and the pedal is connected to the slider through the slide groove.

[0011] According to one embodiment of the present application, the compound propulsion system further includes a locking device, which locks the compound propulsion system to the kayak.

[0012] According to one embodiment of the present application, the housing is provided with at least one stopping structure, the locking device has at least one elastic sheet, and the stopping structure stops the elastic sheet to prevent the housing from being separated from the locking device.

[0013] According to one embodiment of the present application, the propeller device includes a propeller shaft and blades, the propeller shaft is connected to the main shaft and the blades, and the main shaft drives the blades to rotate by driving the propeller shaft to rotate; the compound propulsion system also includes a rudder structure, which is connected to the propeller device and can make the propeller shaft rotate around the axis of the main shaft.

[0014] According to one embodiment of the present application, the rudder structure includes a turntable, a rudder transmission belt, a first steering wheel, a second steering wheel and a sleeve, the sleeve is sleeved on the main shaft and connected to the propeller shaft, the turntable drives the first steering wheel, the first steering wheel drives the second steering wheel through the rudder transmission belt, and the second steering wheel drives the sleeve to rotate so that the propeller shaft rotates around the axis of the main shaft.

[0015] According to another aspect of the present application, the present application provides a kayak, comprising a boat body and a composite propulsion system, wherein the composite propulsion system is fixed to the boat body and propels the kayak, wherein the composite propulsion system adopts the above composite propulsion system.

[0016] From the above technical solutions, it can be seen that the advantages and positive effects of the composite propulsion system proposed in this application are:

[0017] The composite propulsion system proposed in this application is provided with three one-way bearings, which can ensure that the main shaft always rotates in one direction. The propeller is driven by a human-powered drive device, which increases the user's sense of participation and experience, and is energy-saving and environmentally friendly. The propeller is driven by an electric drive device, which is convenient and labor-saving, and the driving force is stable and reliable with good sustainability. The human-powered drive device and the electric drive device can drive the propeller separately without the need for a switching device, and will not cause interference, and can ensure that the main shaft always rotates in one direction, which is conducive to the widespread application of kayaks.

[0018] Furthermore, in the composite propulsion system of the present application, the human-driven device and the electric-driven device can simultaneously drive the propulsion system, and the two can cooperate with each other, so that the user can propel the kayak with less force, thereby enhancing the user experience and being more conducive to expanding the application scenarios of the kayak and meeting the different needs of different users.

[0019] Furthermore, the hybrid propulsion system of this application utilizes a pedal-driven linear reciprocating motion for the human-powered drive, reducing user fatigue and improving the efficiency of human-power conversion. Multiple one-way bearings are provided on the main shaft, allowing the human-powered and electric-powered drive mechanisms to drive the main shaft separately or simultaneously, without requiring a switching mechanism. This design is ingenious and simple in structure.

[0020] Furthermore, the composite propulsion system of the present application is provided with a rudder structure, which enables the propeller shaft to rotate 360 ​​degrees around the main axis of the propulsion system, thereby facilitating adjustment of the kayak's forward direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The various objects, features, and advantages of the present application will become more apparent by considering the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present application and are not necessarily drawn to scale. In the drawings, the same reference numerals always indicate the same or similar parts.

[0022] Figure 1 It is a structural schematic diagram of the composite propulsion system of the present application (without the shell).

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure of the human-powered drive device.

[0024] Figure 3 yes Figure 2 Schematic diagram of the connection between the slider and the double-sided toothed transmission belt.

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure of the electric drive device.

[0026] Figure 5 yes Figure 1 A schematic diagram of the top view of the human drive device and the electric drive device.

[0027] Figure 6 yes Figure 1 Schematic diagram of the connection between the human drive device, electric drive device and propeller device.

[0028] Figure 7 It is a structural schematic diagram of the rudder structure of the composite propulsion system of the present application.

[0029] Figure 8 yes Figure 1 Schematic diagram of the connection between the human drive device, electric drive device, rudder structure and propeller device.

[0030] Figure 9 This is a schematic diagram of the transmission belt and one-way bearing on the main shaft.

[0031] Figure 10 yes Figure 1 Schematic diagram of the structure of the composite propulsion system (showing the shell).

[0032] Figure 11 yes Figure 10 Schematic diagram of the structure of the composite propulsion system and locking device.

[0033] Figure 12 yes Figure 11 Schematic diagram of the locking device.

[0034] Figure 13 yes Figure 12 Schematic diagram of the structure of the fixed frame.

[0035] Figure 14 yes Figure 12 Schematic diagram of the structure of the fixed seat.

[0036] Figure 15 yes Figure 1 Schematic diagram of the structure of the composite propulsion system and locking device.

[0037] The following are the descriptions of the reference numerals:

[0038] 1. Composite propulsion system;

[0039] 100. Framework;

[0040] 110. Main axis;

[0041] 12. Human-powered drive device;

[0042] 121. Force application component;

[0043] 1211. Left pedal;

[0044] 1212.Left slider;

[0045] 12121.Ontology;

[0046] 12122. Connecting hole;

[0047] 12123. Meshing teeth;

[0048] 1213. Left guide rail;

[0049] 1214. Right pedal;

[0050] 1215.Right slider;

[0051] 1216. Right guide rail;

[0052] 122. Double-sided tooth transmission belt;

[0053] 123. First transmission assembly;

[0054] 1231. First transmission pulley;

[0055] 1232. First transmission belt;

[0056] 1233. Second transmission pulley;

[0057] 1234. Second transmission belt;

[0058] 1235. First one-way bearing;

[0059] 1236. Second one-way bearing;

[0060] 13. Electric drive device;

[0061] 130. Second transmission assembly;

[0062] 131. Motor;

[0063] 132. The third transmission belt;

[0064] 133. The third one-way bearing;

[0065] 134. Third transmission wheel;

[0066] 14. Propeller device;

[0067] 141. Leaves;

[0068] 142. Paddle shell;

[0069] 143. First bevel gear;

[0070] 144. Second bevel gear;

[0071] 145. Propeller shaft;

[0072] 15. Rudder structure;

[0073] 151. Turntable;

[0074] 152. Rudder drive belt;

[0075] 153. First steering wheel;

[0076] 154. Second steering wheel;

[0077] 155. Casing;

[0078] 16. Housing;

[0079] 160. Chute;

[0080] 161. Upper shell;

[0081] 162. Lower shell;

[0082] 20. Idler pulley 1;

[0083] 21. Idler gear 2;

[0084] 22. Idler gear three;

[0085] 23. Tensioner;

[0086] 200. Locking device;

[0087] 10. Fixed frame;

[0088] 11. Fixed seat;

[0089] 101. Hollow opening;

[0090] 102. bulge;

[0091] 103. Elastic sheet;

[0092] 104. First fixing hole;

[0093] 105. Limiting structure;

[0094] 110. Card slot;

[0095] 111.Base;

[0096] 112. Seat edge;

[0097] 113. Grooves;

[0098] 114. Second fixing hole;

[0099] 115. Limit slot;

[0100] 1001. First side;

[0101] 1002. Second side;

[0102] 1003. The third side;

[0103] 1004. The fourth side;

[0104] 201. Stop structure. DETAILED DESCRIPTION

[0105] Typical embodiments that embody the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various variations in different embodiments without departing from the scope of the present application, and the description and drawings therein are essentially for illustrative purposes and are not intended to limit the present application.

[0106] In the following description of different exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part of the present application and in which are shown by way of example different exemplary structures, systems and steps that can implement various aspects of the present application. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present application. When introducing the elements / components / etc. described and / or illustrated herein, the terms "comprising", "including" and "having" are used to express an open-ended inclusive meaning and mean that in addition to the listed elements / components / etc., additional elements / components / etc. may be present.

[0107] Relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element, as shown in the figures. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation shown in the figures. For example, if the device in a figure is turned over, the element described as being "lower" or "bottom" of other elements will be oriented "upper" or "top" of the other elements. Thus, the exemplary term "lower" can include both "lower" and "top" orientations, and the term "bottom" can include both "bottom" and "top" orientations, depending on the particular orientation of the figure. Similarly, if the device in a figure is turned over, the element described as being "lower" or "bottom" of other elements will be oriented as being "upper" or "top" of the other elements. Thus, the exemplary terms "bottom" or "below" can include both "upper" and "lower" orientations.

[0108] like Figure 1 、 Figure 2 and Figure 4 As shown, the composite propulsion system 1 for a kayak of the present application includes a frame 100, a main shaft 110, a human-powered drive device 12, an electric drive device 13, and a propeller device 14. The frame 100 is mounted on the kayak. The main shaft 110 is rotatably mounted on the frame 100 and is capable of rotating about its own axis. A first one-way bearing 1235, a second one-way bearing 1236, and a third one-way bearing 133 are mounted on the main shaft 110. The first one-way bearing 1235, the second one-way bearing 1236, and the third one-way bearing 133 drive the main shaft 110 to rotate in the same direction. The human-powered drive device 12 is mounted on the frame 100 and is connected to the first one-way bearing 1235 and the second one-way bearing 1236 via a first transmission assembly 123, thereby driving the main shaft 110 to rotate. The electric drive device 13 is mounted on the frame 100 and is connected to the third one-way bearing 133 via a second transmission assembly 130, thereby driving the main shaft 110 to rotate. The propeller assembly 14 is disposed beneath the frame 100 and is in transmission connection with the main shaft 110. The electric drive assembly 13 and the human-driven drive assembly 12 can separately or simultaneously drive the main shaft 110 to rotate. Here, let's explain one-way bearings. A one-way bearing is one that allows free rotation in one direction without interfering with the movement of the inner and outer rings. In the other direction, the inner and outer rings are locked.

[0109] The composite propulsion system 1 of the present application is provided with both a human-powered drive device 12 and an electric-powered drive device 13. The human-powered drive device 12 and the electric-powered drive device 13 can drive the propellers separately without the need for a switching device, resulting in a simple structure and easy operation. The human-powered drive device 12 and the electric-powered drive device 13 do not interfere with each other and can ensure that the main shaft 110 always rotates in one direction, which is conducive to the steady propulsion of the kayak. The human-powered drive device 12 and the electric-powered drive device 13 can also drive the propulsion system at the same time. The two work together to enable the user to propel the kayak with less force, thereby enhancing the user experience.

[0110] In this embodiment, if Figure 2 As shown, the human-powered drive device 12 includes a force-applying component 121 , a double-sided toothed transmission belt 122 and a first transmission component 123 . The double-sided toothed transmission belt 122 connects the force-applying component 121 and the first transmission component 123 . The first transmission component 123 is connected to the main shaft 110 .

[0111] The human-powered drive device 12 connects the force-applying component 121 and the first transmission component 123 through a double-sided toothed transmission belt 122, which can accurately transmit the human driving force to the main shaft 110, drive the main shaft 110 to rotate, thereby driving the blades 141 of the propeller device 14 to rotate, and the kayak moves forward or backward.

[0112] In this embodiment, see Figure 2 and Figure 3The force-applying assembly 121 includes pedals 1211, 1214, sliders 1212, 1215 and guide rails 1213, 1216. The pedals are connected to the sliders, which can reciprocate along the guide rails, and the guide rails are fixed to the frame 100; the pedals can reciprocate along the guide rails, and the sliders 1212, 1215 are provided with meshing teeth 12123, which mesh with the double-sided tooth transmission belt 122 to drive the double-sided tooth transmission belt 122 to reciprocate. Figure 3 Only the left slider 1212 is shown in FIG. As for the right slider 1215, the structure is the same as that of the left slider 1212.

[0113] Force-applying assembly 121 is configured as a pedal to facilitate the application of human power. The reciprocating motion of the pedal drives the movement of the double-sided toothed drive belt 122, saving manpower and improving ergonomics. The arrangement of meshing teeth 12123 ensures that the position of the slider and the double-sided teeth is relatively fixed. When the pedal is pressed, the double-sided toothed drive belt 122 and the slider are firmly engaged, preventing relative slippage, thereby improving the efficiency of converting human power into the motion of the main shaft 110 driving the propeller.

[0114] The pedals include a left pedal 1211 and a right pedal 1214, the sliders include a left slider 1212 and a right slider 1215, and the guide rails include a left guide rail 1213 and a right guide rail 1216. Unless otherwise specified in the specification, the pedals refer to the left pedal 1211 and the right pedal 1214, the sliders refer to the left slider 1212 and the right slider 1215, and the guide rails refer to the left guide rail 1213 and the right guide rail 1216. The pedals, sliders, and guide rails are all connected in a corresponding manner: the left part connects to the left part, and the right part connects to the right part. There is no crossover.

[0115] Figure 3 The left slider 1212 includes a body 12121 having a connection hole 12122 for connecting to the left pedal 1211. The meshing teeth 12123 mesh with the double-sided toothed transmission belt 122 (in order to more clearly illustrate the meshing of the meshing teeth 12123 and the double-sided toothed transmission belt 122, Figure 3 Only the teeth on one side of the double-sided toothed transmission belt 122 are shown. In fact, the double-sided toothed transmission belt 122 has teeth on both sides).

[0116] In this embodiment, see Figure 2 and Figure 5The first transmission assembly 123 includes a first transmission pulley 1231, a first transmission belt 1232, a second transmission pulley 1233, and a second transmission belt 1234. The first transmission pulley 1231 is connected to the main shaft 110 via the first transmission belt 1232 and a first one-way bearing 1235. The second transmission pulley 1233 is connected to the main shaft 110 via the second transmission belt 1234 and a second one-way bearing 1236. The double-sided toothed transmission belt 122 drives the first transmission pulley 1231 and the second transmission pulley 1233 to rotate. The first transmission pulley 1231 and the second transmission pulley 1233 always rotate in opposite directions.

[0117] The first transmission assembly 123 uses a belt drive, which is quiet and simple in structure. A flat belt or a V-belt can be used. The use of a one-way bearing and the fact that the first and second transmission pulleys 1231 and 1233 rotate in opposite directions ensure that the main shaft 110 always rotates in the same direction, thereby ensuring continuous and stable human-powered driving.

[0118] Assume that when the first transmission pulley 1231 rotates clockwise, the second transmission pulley 1233 rotates counterclockwise. The first transmission pulley 1231 drives the first one-way bearing 1235 to rotate clockwise through the first transmission belt 1232. Since the first one-way bearing 1235 can achieve this, when power is transmitted from the outer ring of the bearing to the inner ring of the bearing, if it rotates clockwise, the outer ring and the inner ring will be locked, so that the inner ring also rotates clockwise under the drive of the outer ring, and then drives the main shaft 110 fixed to the inner ring to rotate clockwise. When the first transmission pulley 1231 rotates counterclockwise, the second transmission pulley 1233 rotates clockwise. The first transmission pulley 1231 drives the first one-way bearing 1235 to rotate counterclockwise through the first transmission belt 1232. At this time, the outer ring of the first one-way bearing 1235 rotates counterclockwise, and in the counterclockwise direction, the inner ring and outer ring of the bearing are free to rotate. Therefore, the inner ring of the first one-way bearing 1235 rotates freely, and thus the main shaft 110 also rotates freely. The second transmission pulley 1233 rotates clockwise, and the movement state of the second one-way bearing 1236 is exactly the same as that of the first one-way bearing 1235, that is, the second transmission pulley 1233 drives the second one-way bearing 1236 to rotate clockwise through the second transmission belt 1234. Since the second one-way bearing 1236 can realize that when power is transmitted from the outer ring of the bearing to the inner ring of the bearing, if it rotates clockwise, the outer ring and the inner ring will be locked, so that the inner ring also rotates clockwise under the drive of the outer ring, and then drives the main shaft 110 fixed to the inner ring to rotate clockwise.

[0119] The above description is based on the example of the main shaft 110 rotating in the clockwise direction. The main shaft 110 can also rotate counterclockwise all the time. In this embodiment, the free rotation direction and the locking direction of the first one-way bearing 1235 and the second one-way bearing 1236 are interchangeable with those in the above embodiment.

[0120] That is, the main shaft 110 always rotates in one direction, and the first transmission pulley 1231 and the second transmission pulley 1233 drive the main shaft 110 to rotate in one direction in turn.

[0121] In this embodiment, if Figure 4 and Figure 5 As shown, the electric drive device 13 includes a motor 131, a second transmission assembly 130 and a third one-way bearing 133. The second transmission assembly 130 includes a third transmission wheel 134 and a third transmission belt 132. The motor 131 is connected to the drive spindle 110 through the third transmission belt 132 and the third one-way bearing 133.

[0122] The motor 131 drives the main shaft 110 through the third transmission belt 132, which is quiet and simple in structure. A third one-way bearing 133 is also provided to enable switching between manual and electric drive, and also to enable manual and electric drive to be driven simultaneously. The following uses the clockwise rotation of the main shaft 110 as an example. When only manual drive is used, the motor 131 of the electric drive device 13 is not started, and the main shaft 110 always rotates clockwise under the drive of the manual drive device 12. At this time, the inner ring of the third one-way bearing 133 rotates clockwise along with the main shaft 110. Since the motor 131 is not started, the outer ring of the third one-way bearing 133 does not move, so the outer ring rotates counterclockwise relative to the inner ring, which is the free rotation direction of the third one-way bearing 133.

[0123] When only the electric drive device 13 is in use, and the human drive device 12 is not in operation, the motor 131 drives the third transmission belt 132 to rotate clockwise, thereby driving the outer ring of the third one-way bearing 133 to rotate clockwise. When the third one-way bearing 133 rotates clockwise, it is locked, causing the outer ring to drive the inner ring to rotate clockwise, thereby driving the main shaft 110 to rotate clockwise. The third one-way bearing 133 isolates the human drive device 12 from the electric drive device 13.

[0124] When the manual drive device 12 and the electric drive device 13 are driven simultaneously, the main shaft 110 continues to rotate clockwise. If the manual drive device 12 rotates faster than the electric drive device 13, the inner ring of the third one-way bearing 133 rotates faster clockwise and the outer ring rotates slower clockwise. Consequently, the outer ring rotates counterclockwise relative to the inner ring, which is the free rotation direction of the third one-way bearing 133. In this case, the electric drive device 13 is essentially inoperative. When the speed of the motor 131 of the electric drive device 13 increases, so that the speed of the main shaft 110 driven by the electric drive device 13 exceeds the speed of the manual drive device 12, the outer ring rotates clockwise relative to the inner ring of the third one-way bearing 133. The third one-way bearing 133 is locked when rotating clockwise, causing the outer ring to rotate clockwise with the inner ring, thereby driving the main shaft 110 clockwise. At this point, similarly, the first and second one-way bearings 1235 and 1236 of the human-powered drive device 12 rotate faster due to the faster rotation of the main shaft 110, causing their inner races to rotate faster. Consequently, their outer races rotate counterclockwise relative to their inner races, and both one-way bearings are in a free-spinning state. At this point, the human-powered drive device 12 is essentially inoperative.

[0125] Figure 2 and Figure 5 Also shown are idler wheel 1 20, idler wheel 21 and idler wheel 3 22, all of which are engaged with the double-sided toothed transmission belt 122 to assist the movement of the double-sided toothed transmission belt 122. The tensioning wheel 23 is used to tension the double-sided toothed transmission belt 122.

[0126] In this embodiment, if Figure 6 and Figure 7As shown, the propeller device 14 includes a propeller shaft 145 and blades 141. The propeller shaft 145 is connected to the main shaft 110 and the blades 141. The main shaft 110 drives the propeller shaft 145 to rotate, which drives the blades 141 to rotate. The composite propulsion system also includes a rudder structure 15, which is connected to the propeller device 14 and can rotate the propeller shaft 145 around the axis of the main shaft 110. The propeller device 14 also includes a paddle housing 142. The propeller shaft 145 is disposed inside the paddle housing 142. The main shaft 110 passes through the paddle housing 142. A first bevel gear 143 is disposed at the lower end of the main shaft 110. A second bevel gear 144 is disposed on the propeller shaft 145. The first bevel gear 143 and the second bevel gear 144 are meshed. One end of the propeller shaft 145 fixes the blades 141, and the other end is connected to the paddle housing 142. The propeller shaft 145 can rotate around the axis of the main shaft 110 as the paddle housing 142 rotates. The arrangement of the rudder structure 15 enables the propeller shaft 145 to rotate 360 ​​degrees around the axis of the main shaft 110, and the blades 141 of the propeller device 14 can rotate 360 ​​degrees around the axis of the main shaft 110 as a whole, thereby changing the position of the blades 141 relative to the main shaft 110. Assuming that the blades 141 are located relative to the main shaft 110 as follows: Figure 6 When in the position shown, the blade 141 rotates around the propeller shaft 145, which can make the kayak move forward; after the rudder structure 15 rotates the propeller shaft 145 180 degrees around the axis of the main shaft 110, the overall position of the blade 141 relative to the main shaft 110 will rotate 180 degrees. At this time, when the blade 141 rotates around the propeller shaft 145, the kayak can move backward.

[0127] In this embodiment, the rudder structure 15 includes a turntable 151, a rudder transmission belt 152, a first steering wheel 153, a second steering wheel 154, and a sleeve 155. The sleeve 155 is sleeved around the main shaft 110 and connected to the propeller shaft 145. The turntable 151 drives the first steering wheel 153, which in turn drives the second steering wheel 154 via the rudder transmission belt 152. The second steering wheel 154 drives the sleeve 155 to rotate, causing the propeller shaft 145 to rotate about the axis of the main shaft 110. The rudder structure 15 uses a transmission belt, resulting in a simple structure and low movement noise. The turntable 151 is easy to operate. The user can rotate the turntable 151, which drives the first steering wheel 153, which in turn drives the second steering wheel 154. The rotation of the second steering wheel 154 drives the sleeve 155 to rotate. The sleeve 155 is fixed to the propeller housing 142 and connected to the propeller shaft 145. Therefore, rotating the sleeve 155 can rotate the propeller housing 142 and the propeller shaft 145 as a whole. The sleeve 155 is sleeved on the main shaft 110, which is conducive to the compact structure of the entire device. In other embodiments, the rudder structure 15 can also adopt other structures, such as the sleeve 155 is separated from the main shaft 110, and the sleeve 155 pushes the paddle housing 142 to rotate 360 ​​degrees.

[0128] Figure 8The connection structure of the human-powered drive device 12 , the electric drive device 13 , the rudder structure 15 and the propeller device 14 is shown. Figure 9 The diagram shows the positional relationship between the three one-way bearings 1235, 1236, and 133, and the second steering wheel 154 of the rudder structure 15, on the main shaft 110. The first one-way bearing 1235, the second one-way bearing 1236, and the third one-way bearing 133 drive the main shaft 110 in the same direction. This ensures that the main shaft 110 always rotates in the same direction, ensuring continuous and stable kayak motion.

[0129] like Figure 10 As shown, the hybrid propulsion system 1 further includes a housing 16 having a slide groove 160 . The frame 100 is disposed inside the housing 16 . The pedals 1211 and 1214 are disposed outside the housing 16 . The pedals pass through the slide groove 160 and are connected to the slider.

[0130] In this embodiment, the housing 16 includes an upper housing 161 and a lower housing 162. Of course, the housing 16 can also be assembled in other ways, such as a left and right housing assembly, or a plurality of housing sections assembled into a complete housing.

[0131] like Figure 11 As shown, the compound propulsion system 1 further includes a locking device 200 , which locks the compound propulsion system 1 to the kayak.

[0132] In this embodiment, the housing 16 is provided with at least one stopping structure 201 , and the locking device 200 has at least one elastic piece 103 . The stopping structure 201 stops the elastic piece 103 to prevent the housing 16 from being separated from the locking device 200 .

[0133] like Figures 12 to 14 As shown, the locking device 200 includes a fixing seat 11 and a fixing frame 10. The fixing frame 10 is provided with a hollow opening 101, through which the fixing seat 11 passes. A protrusion 102 of the fixing frame 10 facing the hollow opening 101 is engaged with a slot 110 of the fixing seat 11, thereby locking the fixing frame 10 and the fixing seat 11, thereby achieving a connection between the boat or ship connected to the fixing frame 10 and the composite propulsion system 1 connected to the fixing seat 11. During disassembly, the fixing frame 10 is rotated so that the protrusion 102 of the fixing frame 10 disengages from the slot 110 of the fixing seat 11, thereby separating the fixing seat 11 from the fixing frame 10, thereby separating the boat or ship from the composite propulsion system 1.

[0134] In this embodiment, if Figure 13As shown, the fixing frame 10 includes a first side 1001, a second side 1002, a third side 1003 and a fourth side 1004 connected end to end in sequence, the first side 1001, the second side 1002, the third side 1003 and the fourth side 1004 form a hollow opening 101, and protrusions 102 are provided on the first side 1001 and the third side 1003.

[0135] In this embodiment, the number of protrusions 102 is six, but may be two or more. In this embodiment, three protrusions 102 are provided on each of the first side 1001 and the third side 1003, with the three protrusions 102 spaced apart. In an embodiment with two protrusions 102, one protrusion 102 is provided on each of the first side 1001 and the third side 1003. Typically, the number of protrusions 102 on the first side 1001 and the third side 1003 is equal. In some embodiments, the number of protrusions 102 on the first side 1001 and the third side 1003 may be unequal.

[0136] In this embodiment, see Figure 14 The fixing seat 11 includes a seat body 111 and a seat edge 112. The fixing seat 11 also adopts a rectangular parallelepiped form, and the seat edge 112 also adopts a similar four-sided design.

[0137] In this embodiment, a limiting structure 105 is provided on the second side 1002, and a limiting groove 115 is provided on the portion of the fixing base 11 corresponding to the second side 1002. The limiting structure 105 is limited in the limiting groove 115. The design of the limiting structure 105 and the limiting groove 115 can limit and fix the fixing frame 10 to the fixing base 11, further limiting the relative movement between the two.

[0138] In this embodiment, after the protrusion 102 of the fixed frame 10 slides along the groove 113 to contact the seat edge 112, it pushes the fixed frame 10 and can also push the fixed seat 11. The protrusion 102 moves from the groove 113 to the slot 110 to fix the fixed seat 11 and the fixed frame 10.

[0139] In this embodiment, see Figures 13 and 14 The fixing frame 10 is provided with a first fixing hole 104 , and the fixing seat 11 is provided with a second fixing hole 114 . The fixing frame 10 is connected to the boat or ship through the first fixing hole 104 , and the fixing seat 11 is connected to the composite propulsion device 1 through the second fixing hole 114 .

[0140] Figure 15 yes Figure 1 A structural diagram of a composite propulsion system with an additional locking device, wherein the main shaft 110 and the sleeve 155 pass through the locking device and are connected to the propeller device 14, the main shaft 110 is connected to the first bevel gear 143 of the propeller device 14, the sleeve 155 is fixed to the propeller housing 142 of the propeller device 14 by screws, and the propeller shaft 145 is installed in the propeller housing 142.

[0141] The kayak of the present application includes a boat body and a composite propulsion system. The composite propulsion system is fixed to the boat body and propels the kayak. The composite propulsion system adopts the composite propulsion system 1 above.

[0142] In this exemplary embodiment, the composite propulsion system proposed in this application is described using the kayaking field as an example. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below to apply the relevant designs of this application to other fields, and such modifications remain within the scope of the principles of the composite propulsion system proposed in this application.

[0143] It should be noted that the compound propulsion systems shown in the drawings and described in this specification are only a few examples of the many compound propulsion systems that can employ the principles of the present application. It should be clearly understood that the principles of the present application are in no way limited to any component of any detail of the compound propulsion systems shown in the drawings or described in this specification.

[0144] The above is a detailed description of several exemplary embodiments of the composite propulsion system and kayak proposed in this application. The following is an exemplary description of the installation and use process of the composite propulsion system and kayak proposed in this application.

[0145] Combined with attachment Figures 1 to 15 The installation and use process of the composite propulsion system 1 and kayak proposed in this application is as follows:

[0146] Fix the fixing frame 10 of the locking device 200 to the bottom of the kayak, and fix the fixing seat 11 of the locking device 200 to the composite propulsion system 1; place the composite propulsion system 1 into the bottom of the kayak along the hollow opening 101 of the fixing frame 10. At this time, the protrusion 102 of the fixing frame 10 can slide along the groove 113 of the fixing seat 11 to the end of the groove 113, and the seat body 111 of the fixing seat 11 and the propeller device 14 are both located under the bottom of the kayak.

[0147] The composite propulsion system 1 is pushed so that the protrusion 102 of the fixing frame 10 slides from the end of the groove 113 into the slot 110 , and the composite propulsion system 1 is installed and fixed on the kayak.

[0148] During use, the spindle 110 is described as rotating clockwise. The spindle 110 can also rotate counterclockwise. There are three ways of use:

[0149] The first type: using only the human driving device 12 to drive.

[0150] The user steps on the pedal to reciprocate along the guide rail, driving the double-sided toothed transmission belt 122 to reciprocate. Figure 2The first transmission pulley 1231 is located at the rear, and the tensioning pulley is located at the front. When the left pedal 1211 is stepped on from the back to the front, the double-sided toothed transmission belt 122 drives the first transmission pulley 1231 to rotate clockwise, and the second transmission pulley 1233 to rotate counterclockwise. The first transmission pulley 1231 drives the first one-way bearing 1235 to rotate clockwise through the first transmission belt 1232. Because the first one-way bearing 1235 can transmit power from the outer ring of the bearing to the inner ring of the bearing, if the bearing rotates clockwise, the outer and inner rings will lock, causing the inner ring to rotate clockwise under the drive of the outer ring, thereby driving the main shaft 110 fixed to the inner ring to rotate clockwise. At this time, the right pedal 1214 retreats from the front to the back following the double-sided toothed transmission belt 122.

[0151] When the left pedal 1211 moves to the front end and the right pedal 1214 moves to the rear end, the user can step on the right pedal 1214 from back to front. At this time, the double-sided tooth transmission belt 122 drives the first transmission pulley 1231 to rotate counterclockwise, and the second transmission pulley 1233 to rotate clockwise. The first transmission belt 1232 pulley 1231 drives the first one-way bearing 1235 to rotate counterclockwise through the first transmission belt 1232. At this time, the outer ring of the first one-way bearing 1235 rotates counterclockwise. In the counterclockwise direction, the inner ring and outer ring of the bearing are free to rotate. Therefore, the inner ring of the first one-way bearing 1235 rotates freely, so that the main shaft 110 also rotates freely. Second drive pulley 1233 rotates clockwise, and second one-way bearing 1236 moves in the same direction as first one-way bearing 1235. That is, second drive pulley 1233 drives second one-way bearing 1236 clockwise via second drive belt 1234. Since second one-way bearing 1236 also locks with the outer and inner rings when power is transmitted from the outer ring to the inner ring, the outer and inner rings also rotate clockwise under the drive of the outer ring, which in turn drives main shaft 110, which is fixed to the inner ring, to rotate clockwise as well. Therefore, driven by the human-powered drive device 12, main shaft 110 rotates in one direction, and the kayak continues to move stably.

[0152] When driven only by the human drive device 12, the inner ring of the third one-way bearing 133 rotates clockwise along with the main shaft 110. Since the motor 131 is not started, the outer ring of the third one-way bearing 133 does not move. The outer ring rotates counterclockwise relative to the inner ring, which is the free rotation direction of the third one-way bearing 133.

[0153] The second method is to use only the electric drive device 13 for driving.

[0154] Motor 131 drives third drive belt 132 in a clockwise direction, thereby driving the outer ring of third one-way bearing 133 to rotate clockwise. Third one-way bearing 133 is locked when rotating clockwise, and the outer ring drives the inner ring to rotate clockwise, thereby driving the main shaft 110 in a clockwise rotation. Similarly, when main shaft 110 rotates clockwise, the inner rings of first one-way bearing 1235 and second one-way bearing 1236 rotate clockwise with main shaft 110, while their outer rings remain stationary, indicating that both are in a free-wheeling state.

[0155] The third method is to use the human-powered drive device 12 and the electric drive device 13 at the same time.

[0156] If the rotation speed of the main shaft 110 driven by the human drive device 12 is faster than the rotation speed of the main shaft 110 driven by the electric drive device 13, then at the third one-way bearing 133, the inner ring rotates faster clockwise and the outer ring rotates slower clockwise, then the outer ring rotates counterclockwise relative to the inner ring, and the counterclockwise direction is the free rotation direction of the third one-way bearing 133. At this time, the electric drive device 13 is essentially ineffective.

[0157] When the speed of motor 131 of electric drive device 13 increases, causing the speed of spindle 110 driven by electric drive device 13 to exceed that of spindle 110 driven by human-driven drive device 12, the outer ring of third one-way bearing 133 rotates clockwise relative to the inner ring. Third one-way bearing 133 is locked during clockwise rotation, causing the outer ring to drive the inner ring clockwise, thereby driving spindle 110 clockwise. Similarly, for first one-way bearing 1235 and second one-way bearing 1236 of human-driven drive device 12, due to the faster rotation of spindle 110, the inner rings of both bearings rotate faster, causing their outer rings to rotate counterclockwise relative to their inner rings. Both one-way bearings are in a free-spinning state. At this point, human-driven drive device 12 is essentially inoperative.

[0158] Only when the rotation speeds of the main shaft 110 driven by the human-powered driving device 12 and the electric-powered driving device 13 are similar, the human-powered driving device 12 and the electric-powered driving device 13 provide drive to the main shaft 110 at the same time, which can save effort, and the rotation speed of the main shaft 110 is still relatively high, and the kayak moves faster.

[0159] Through the above-mentioned use process of the composite propulsion system 1 and the kayak of the present application, it can be concluded that the composite propulsion system 1 of the present application adopts a human-powered driving device 12 to drive the propeller, which increases the user's sense of participation and experience, and is energy-saving and environmentally friendly. The electric driving device 13 is adopted to drive the propeller, which is convenient and labor-saving, and the driving force is stable and reliable with good sustainability. The human-powered driving device 12 and the electric driving device 13 can drive the propeller separately and do not require a switching device. The human-powered driving device 12 and the electric driving device 13 can drive the propulsion system at the same time, and the two can cooperate with each other, so that the user can use less force to propel the kayak to move, enhance the user experience, and be more conducive to expanding the application scenarios of the kayak.

[0160] In summary, the composite propulsion system proposed in this application includes a frame 100, a main shaft 110, a manual drive device 12, an electric drive device 13 and a propeller device 14. The main shaft 110 is arranged on the frame 100 and can rotate around its own axis. The manual drive device 12 is arranged on the frame 100 and connected to the main shaft 110, driving the main shaft 110 to rotate. The electric drive device 13 is arranged on the frame 100 and connected to the main shaft 110, driving the main shaft 110 to rotate. The propeller device 14 includes blades 141, and the propeller device 14 is arranged outside the frame 100 and connected to the main shaft 110. The rotation of the main shaft 110 drives the blades 141 of the propeller device 14 to rotate. The electric drive device 13 and the manual drive device 12 can drive the main shaft 110 to rotate separately or simultaneously.

[0161] The composite propulsion system 1 of the present application is provided with both a human-powered drive device 12 and an electric-powered drive device 13. The human-powered drive device 12 and the electric-powered drive device 13 can drive the propellers separately without the need for a switching device, resulting in a simple structure and easy operation. The human-powered drive device 12 and the electric-powered drive device 13 do not interfere with each other and can ensure that the main shaft 110 always rotates in one direction, which is conducive to the steady propulsion of the kayak. The human-powered drive device 12 and the electric-powered drive device 13 can also drive the propulsion system at the same time. The two work together to enable the user to propel the kayak with less force, thereby enhancing the user experience.

[0162] In this hybrid propulsion system, the human-driven device 12 employs pedal-driven linear reciprocating motion, reducing fatigue and improving efficiency. Multiple one-way bearings are provided on the main shaft 110, allowing the human-driven device 12 and the electric-driven device 13 to drive the main shaft 110 independently or simultaneously, without requiring a switching mechanism. This design is ingenious and simple.

[0163] The composite propulsion system of the present application is provided with a rudder structure 15, which enables the propeller shaft 145 to rotate 360 ​​degrees around the main shaft 110 of the propulsion system, thereby facilitating adjustment of the kayak's forward direction.

[0164] The kayak proposed in this application includes a boat body and a composite propulsion system. The composite propulsion system is fixed to the boat body and propels the kayak. The composite propulsion system adopts the composite propulsion system 1 above.

[0165] The exemplary embodiments of the composite propulsion system and kayak proposed in the present application are described and / or illustrated in detail above. However, the embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and staggered with other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "a", "an", and "above" are used to indicate the presence of one or more elements / components / etc.

[0166] The embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components of each embodiment can be used independently and staggered with the other components described herein. Each component of an embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the description of the terms "one embodiment", "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0167] In the embodiments, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the embodiments based on the specific circumstances.

[0168] While the composite propulsion system and kayak have been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.

Claims

1. A composite propulsion system for kayaking, characterized in that: include: a frame fixed to the kayak; a main shaft rotatably disposed on the frame and capable of rotating about its own axis, wherein a first one-way bearing, a second one-way bearing, and a third one-way bearing are mounted on the main shaft, and wherein the first one-way bearing, the second one-way bearing, and the third one-way bearing drive the main shaft to rotate in the same rotation direction; A human-powered driving device is provided on the frame and is connected to the first one-way bearing and the second one-way bearing via a first transmission assembly, and is used to drive the main shaft to rotate; an electric drive device, disposed on the frame and connected to the third one-way bearing via a second transmission assembly, for driving the main shaft to rotate; A propeller device is located below the frame and is drivingly connected to the main shaft; The electric drive device and the human drive device can drive the main shaft to rotate separately or simultaneously.

2. The composite propulsion system according to claim 1, wherein: The human-powered drive device includes a force-applying component, a double-sided toothed transmission belt, and the first transmission component. The double-sided toothed transmission belt connects the force-applying component and the first transmission component. The first transmission component is connected to the main shaft.

3. The composite propulsion system according to claim 2, wherein: The force-applying assembly includes a pedal, a slider, and a guide rail, wherein the pedal is connected to the slider, the slider can reciprocate along the guide rail, and the guide rail is fixed to the frame; The pedal can reciprocate along the guide rail, and the slider is provided with meshing teeth, which mesh with the double-sided tooth transmission belt to drive the double-sided tooth transmission belt to reciprocate.

4. The composite propulsion system according to claim 3, wherein: The first transmission assembly includes a first transmission pulley, a first transmission belt, a second transmission pulley, and a second transmission belt. The first transmission pulley is connected to the main shaft via the first transmission belt and the first one-way bearing. The second transmission pulley is connected to the main shaft via the second transmission belt and the second one-way bearing. The double-sided toothed transmission belt drives the first transmission pulley and the second transmission pulley to rotate. The rotation directions of the first transmission pulley and the second transmission pulley are always opposite.

5. The composite propulsion system according to claim 4, wherein: The electric drive device includes a motor and the second transmission assembly, the second transmission assembly includes a third transmission wheel and a third transmission belt, the third transmission wheel is fixed on the shaft of the motor, and the motor drives the main shaft through the third transmission belt and the third one-way bearing.

6. The composite propulsion system according to any one of claims 3 to 5, characterized in that: The compound propulsion system further includes a housing having a slide groove. The frame is arranged inside the housing. The pedal is arranged outside the housing. The pedal passes through the slide groove and is connected to the slider.

7. The composite propulsion system according to claim 6, wherein: The compound propulsion system further includes a locking device for locking the compound propulsion system to the kayak.

8. The composite propulsion system according to claim 7, wherein: The housing is provided with at least one stopping structure, the locking device has at least one elastic piece, and the stopping structure stops the elastic piece to prevent the housing from being separated from the locking device.

9. The composite propulsion system according to any one of claims 1 to 5, 7 to 8, characterized in that: The propeller device includes a propeller shaft and blades, the propeller shaft is connected to the main shaft and the blades, and the main shaft drives the blades to rotate by driving the propeller shaft to rotate; the compound propulsion system also includes a rudder structure, which is connected to the propeller device and can make the propeller shaft rotate around the axis of the main shaft.

10. The composite propulsion system according to claim 9, wherein: The rudder structure includes a turntable, a rudder transmission belt, a first steering wheel, a second steering wheel and a sleeve. The sleeve is sleeved on the main shaft and connected to the propeller shaft. The turntable drives the first steering wheel, the first steering wheel drives the second steering wheel through the rudder transmission belt, and the second steering wheel drives the sleeve to rotate so that the propeller shaft rotates around the axis of the main shaft.

11. A kayak comprising a kayak body and a composite propulsion system, wherein the composite propulsion system is fixed to the kayak body and propels the kayak, wherein: The compound propulsion system comprises the compound propulsion system according to any one of claims 1 to 10.

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