Marine propulsor and marine mobile device

Abstract

A marine propulsor (100), comprising a propulsor body (10), an operating device (30), and a locking module (50). The locking module (50) is provided on at least one of the propulsor body (10) and the operating device (30). When the operating device (30) and the propulsor body (10) are in a folded state, the locking module (50) locks the operating device (30) and the propulsor body (10), and the operating device (30) forms a load-bearing suspension beam between a transverse connecting shaft (40) and the locking module (50).

Description

Water propulsion and water-based mobile equipment Technical Field

[0001] This application relates to the field of marine machinery technology, and in particular to a water propulsion device and a water-mobile device. Background Technology

[0002] Currently, outboard motors can be detached from the support structure connecting to the hull for quick removal and installation. However, after being removed from the hull, the outboard motor requires a special handle to lift it for transport, and this special handle structure results in wasted space on the outboard motor. Summary of the Invention

[0003] The embodiments of this application provide a water propulsion device and a water-mobile device.

[0004] The water propulsion device of this application is used to connect to a water carrier to propel the water carrier in water. The water propulsion device includes a main body, an operating device, and a locking module. A propulsion device is provided at the end of the main body for outputting propulsive force to move the water carrier. The operating device is rotatably connected to the end of the main body away from the propulsion device via a transverse connecting shaft, allowing it to be folded or unfolded with the main body. The operating device is used by a user to control the operation of the water propulsion device. The locking module is disposed on at least one of the main body and the operating device. When the operating device is folded with the main body, the locking module locks the operating device to the main body at a position between the transverse connecting shaft and the propulsion device. The operating device forms a cantilever beam between the transverse connecting shaft and the locking module, capable of supporting the weight of the main body.

[0005] This application also provides a water-based mobile device. The water-based mobile device includes a water-based thruster and a water-based carrier, with the main body mounted to the water-based carrier. The water-based thruster connects to the water-based carrier to propel it in water. The water-based thruster includes a main body, an operating device, and a locking module. The end of the main body is provided with a propulsion device for outputting propulsive force to move the water-based carrier. The operating device is rotatably connected to the end of the main body away from the propulsion device via a transverse connecting shaft, allowing it to be folded or unfolded with the main body. The operating device is used by a user to control the operation of the water-based thruster. The locking module is disposed on at least one of the main body and the operating device. When the operating device is folded with the main body, the locking module locks the operating device to the main body at a position between the transverse connecting shaft and the propulsion device. The operating device forms a cantilever beam between the transverse connecting shaft and the locking module, capable of supporting the load on the main body.

[0006] The water propulsion device and water-mobile device of this application, in the folded state of the main body and the operating device, the locking module locks the operating device to the main body, forming a cantilever structure, so that the operating device can bear the load of the main body. The user can directly lift the operating device horizontally, thereby lifting the entire water propulsion device (i.e., "outboard motor"), without the need to design a special handle structure to lift the water propulsion device, thus avoiding the waste of space on the water propulsion device.

[0007] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0008] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0009] Figure 1 is a perspective view of a water propulsion device according to some embodiments of this application;

[0010] Figure 2 is a partial three-dimensional exploded view of the water propulsion device shown in Figure 1;

[0011] Figure 3 is a schematic diagram of the water propulsion device shown in Figure 1 in a folded state;

[0012] Figure 4 is a partial three-dimensional exploded view of the water propulsion device shown in Figure 1 from another perspective;

[0013] Figure 5 is a three-dimensional exploded schematic diagram of a portion of the structure of the water propulsion device shown in Figure 1;

[0014] Figure 6 is a cross-sectional schematic diagram of a portion of the locking module of a water propulsion device according to some embodiments of this application in the engaged state.

[0015] Figure 7 is a cross-sectional schematic diagram of a portion of the structure of the locking module in the released state according to some embodiments of this application;

[0016] Figure 8 is a cross-sectional schematic diagram of a portion of the locking module in the separated state according to some other embodiments of this application;

[0017] Figure 9 is a cross-sectional schematic diagram of a portion of the structure of the locking module in some other embodiments of this application when it switches from a disengaged state to a plug-in engagement state.

[0018] Figure 10 is a cross-sectional schematic diagram of a portion of the locking module in the plug-in engagement state according to some other embodiments of this application;

[0019] Figure 11 is a cross-sectional schematic diagram of a portion of the locking module of the water propulsion device in the non-engaged state according to some embodiments of this application.

[0020] Figure 12 is a cross-sectional schematic diagram of a portion of the locking module of the water propulsion device in the engaged state according to some embodiments of this application.

[0021] Figure 13 is a cross-sectional schematic diagram of a portion of the structure of the locking module when it switches from the engaged state to the non-engaged state according to some other embodiments of this application.

[0022] Figure 14 is a schematic diagram of the structure of a water-based mobile device according to certain embodiments of this application. Detailed Implementation

[0023] The embodiments of this application are described in detail below. These embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] Please refer to Figures 1 to 5 and Figure 14. The water propulsion device 100 of this embodiment is used to connect to a water carrier 300 to propel the water carrier 300 to move in the water. The water propulsion device 100 includes a main body 10, an operating device 30, and a locking module 50. A propulsion device 20 for outputting propulsive force to move the water carrier 300 is provided at the end of the main body 10. The operating device 30 is rotatably connected to the end of the main body 10 away from the propulsion device 20 via a transverse connecting shaft 40, and can be folded or unfolded with the main body 10. The operating device 30 is used by the user to operate and control the operation of the water propulsion device 100. The locking module 50 is disposed in at least one of the main body 10 and the operating device 30. When the operating device 30 and the main body 10 are folded, the locking module 50 locks the operating device 30 and the main body 10 at the position between the transverse connecting shaft 40 and the propulsion device 20. The operating device 30 forms a cantilever beam between the transverse connecting shaft 40 and the locking module 50 that can bear the weight of the main body 10.

[0026] In this application, the water propulsion unit 100 is an outboard motor, and the water carrier 300 is exemplified as a boat hull. In other embodiments, the water propulsion unit 100 may also be a podded propulsion unit, a stern motor, or a trolley motor; the water carrier may also be a buoy or a rubber float. Specifically, the water propulsion unit 100 is a detachable power unit that can be installed on the outside of the hull or stern plate of the water carrier 300 during use, thereby providing power for the operation of the water carrier 300. When not in use, the water propulsion unit 100 can be detached from the water carrier 300 for maintenance and repair. The fuselage body 10 is a structure for mounting other components. In this application, the fuselage body 10 is used to mount at least the propulsion device 20. The cross-sectional shape of the fuselage body 10 may be, but is not limited to, circular, elliptical, rectangular, or other polygonal shapes; in this application, the cross-sectional shape of the fuselage body 10 is rectangular. The material of the fuselage body 10 may be plastic or metal. When the fuselage body 10 is made of plastic, it has good insulation properties, low cost, and light weight. When the fuselage body 10 is made of metal, it has high strength, good wear resistance, and long service life. In this application, the fuselage body 10 includes two opposing ends along its extension direction C: a first end 101 and a second end 103. The first end 101 is equipped with a propulsion device 20. When the water propulsion device 100 is installed on the water carrier 300, the propulsion device 20 is at least partially underwater and outputs propulsion force to move the water carrier 300 in the water. The propulsion device 20 includes, but is not limited to, a propeller. It is understood that when the water propulsion device 100 is installed on the water carrier 300, the extension direction C of the fuselage body 10 is substantially perpendicular to the water surface. The operating device 30 is for a user to hold while seated inside the water carrier 300 to control the propulsion direction of the underwater propulsion device 20, thereby controlling the direction of travel of the water propulsion unit 100. The operating device 30 is located at the end of the main body 10 furthest from the propulsion device 20 and is rotatably connected to the second end 103 of the main body 10 via a transverse connecting shaft 40. The transverse connecting shaft 40 is perpendicular to the extension direction C of the main body 10, and the operating device 30 can rotate around the transverse connecting shaft 40. During rotation, the extension direction P of the operating device 30 and the extension direction C of the main body 10 can form different angles. Specifically, in this application, the direction perpendicular to the extension direction B of the transverse connecting shaft 40 and perpendicular to the extension direction C of the main body 10 is defined as the first direction A, the extension direction of the transverse connecting shaft 40 as the second direction B, and the extension direction C of the main body 10 as the third direction C. It is understood that the plane of rotation (plane AC) in which the operating device 30 rotates about the transverse connecting shaft 40 is perpendicular to the transverse connecting shaft 40 (second direction B).Furthermore, the operating device 30 and the main body 10 have two states: a folded state and an unfolded state. For the sake of brevity in the following description, they will be collectively referred to as the folded state and unfolded state of the water propulsion device 100.

[0027] The folded state is when the angle between the extension direction P of the operating device 30 and the extension direction C of the main body 10 is at its minimum. In this state, the operating device 30 is retracted towards the main body 10 and stored near it, as shown in Figure 3. Furthermore, in the folded state, the operating device 30 is locked to the main body 10, preventing it from rotating around the transverse connecting shaft 40. The locked water propulsion unit 100 maintains its folded state, reducing the space occupied by the water propulsion unit 100 and facilitating storage and transportation. Specifically, this application uses a locking module 50 to lock the operating device 30 to the main body 10.

[0028] The locking module 50 is used to lock the main body 10 and the operating device 30. In some embodiments, the locking module 50 is disposed on the main body 10; in other embodiments, the locking module 50 is disposed on the operating device 30; in still other embodiments, the locking module 50 is disposed on both the main body 10 and the operating device 30. The locking module 50 is located between the two ends of the main body 10, that is, between the transverse connecting shaft 40 and the propulsion device 20. When the locking module 50 locks the operating device 30 and the main body 10, the operating device 30 has two connection positions with the main body 10: the transverse connecting shaft 40 and the locking module 50. The operating device 30 cannot rotate around the transverse connecting shaft 40. Therefore, when the water propulsion device 100 is removed from the water carrier 300, the user can directly carry the entire water propulsion device 100 by hand-carrying the operating device 30. Furthermore, when the water propulsion unit 100 is removed from the water carrier 300 and the user holds the operating device 30, the water propulsion unit 100 is lifted laterally. At this time, the operating device 30 forms a cantilever beam between the lateral connecting shaft 40 and the locking module 50, which can support the weight of the main body 10. Here, "lateral" refers to the direction in which the water propulsion unit 100 is roughly horizontal or at a small angle to the ground after being lifted by the user.

[0029] A cantilever beam typically refers to a beam laterally supported between two ends, one end of which is usually fixed, while the other end is freely extendable or suspended. The cantilever beam bears loads from the freely extendable end. In this application, the cantilever beam can be defined as: the structure formed by the operating lever 33 between the transverse connecting shaft 40 and the locking module 50. The cantilever beam provides supporting loads to the main body 10 when the user carries it by hand. One end of the operating device 30 is connected to the main body 10 via the transverse connecting shaft 40. Between the opposite ends of the operating device 30, the operating device 30 is connected to the main body 10 via the locking module 50, which locks the operating device 30 and the main body 10 together, thereby enabling the operating device 30 to bear the load of the main body 10 and remain stable during hand-carrying operation. At this time, the cantilever beam can bear the weight of the main body 10 and allows the user to directly lift the entire water propeller 100 using the operating device 30 when carrying it. Because the cantilever structure balances the load, it can effectively distribute the load of the main body 10, making the operation more stable and effortless, while avoiding uneven load distribution and preventing local damage to the water propulsion unit 100.

[0030] In the unfolded state, as shown in Figures 2, 3, and 4, the angle formed by the extension direction P of the operating device 30 and the extension direction C of the main body 10 is greater than the angle formed by the extension direction P of the operating device 30 and the extension direction C of the main body 10 in the folded state. Furthermore, in the unfolded state, the operating device 30 and the main body 10 are not locked together by the locking module 50. In the unfolded state, if the water propeller 100 is installed on the water carrier 300, the user can control the operating device 30 to rotate around the transverse connecting shaft 40, thereby changing the direction of travel of the water propeller 100. The operating device 30 and the main body 10 are locked together by the locking module 50 to prevent unnecessary movement. At this time, a cantilever structure is formed between the operating device 30 and the main body 10, which can support the weight of the water propeller 100, allowing the user to directly lift the entire water propeller 100 horizontally using the operating device 30. The cantilever structure provides a convenient way to handle the vehicle, reduces the burden of carrying it, and ensures the stability of the water propeller 100.

[0031] In the folded state of the main body 10 and the operating device 30, the locking module 50 locks the operating device 30 to the main body 10, forming a cantilever structure. This allows the operating device 30 to bear the load of the main body 10, enabling the user to directly lift the operating device 30 laterally, thereby lifting the entire water propeller 100 (i.e., the "outboard motor"). No special handle structure is needed to carry the water propeller 100, thus avoiding wasted space. The cantilever structure effectively distributes the load of the main body 10, making lifting the water propeller 100 more stable and effortless, while also preventing uneven load distribution and localized damage to the water propeller 100.

[0032] Please refer to Figures 1 to 5 and Figure 14. In some embodiments, the operating device 30 includes an operating lever 33, which is rotatably connected to the main body 10 via a transverse connecting shaft 40. The main body 10 includes a front side facing the water carrier 300 and a rear side opposite to the front side. When the operating device 30 and the main body 10 are folded, the operating device 30 is folded to the front side of the main body 10, or the operating device 30 is folded to the rear side of the main body 10.

[0033] Specifically, the operating lever 33 is rotatably connected to the main body 10 via a transverse connecting shaft 40. The main body 10 includes a front side facing the water carrier 300 and a rear side opposite to the front side. The front and rear sides are opposite sides in the first direction A. When the water propeller 100 is in a folded state, in some embodiments, the operating device 30 is folded to the front side of the main body 10, and in other embodiments, the operating device 30 is folded to the rear side of the main body 10. Regardless of the embodiment, the space occupied by the water propeller 100 can be reduced, facilitating the transportation and storage of the water propeller 100.

[0034] Referring to Figure 3, in some embodiments, when the main body 10 of the cantilever-assisted water propeller 100 is under load, the load on the lateral connecting shaft 40 is substantially the same as the load on the locking module 50. Specifically, the main body 10 of the cantilever-assisted water propeller 100 is under load when the water propeller 100 is lifted laterally by the user. Under load, the lateral connecting shaft 40 and the locking module 50 share the load of the main body 10. "Substantially the same" means that the load difference between the two positions of the lateral connecting shaft 40 and the locking module 50 is less than or equal to a predetermined load, which can be a small value, such as 2N, 5N, 6N, or 10N. The load on the transverse connecting shaft 40 is essentially the same as the load on the locking module 50, ensuring that the load is evenly distributed during the lifting and handling of the water propeller 100 by the user. This prevents damage caused by concentrated load on either the transverse connecting shaft 40 or the locking module 50, thereby extending the service life of the water propeller 100 and improving its operational stability. Simultaneously, the essentially uniform load helps the user to handle the water propeller 100 more smoothly when lifting it, preventing tilting or instability due to uneven load, and improving safety during handling.

[0035] Please refer to Figures 1, 3, 5, and 14, as well as Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, the locking module 50 includes a first locking unit 51, a second locking unit 52, and a control unit 53. The first locking unit 51 is disposed on the operating lever 33. The second locking unit 52 and the control unit 53 are both disposed on the main body 10. The control unit 53 includes a movable member 531, which can switch between a first position and a second position. The movable member 531 is coupled to the second locking unit 52. When the movable member 531 is in the first position, it controls the second locking unit 52 to lock with the first locking unit 51. When the movable member 531 is in the second position, it allows the second locking unit 52 to unlock from the first locking unit 51.

[0036] Specifically, the control unit 53 includes a movable member 531, which can switch between a first position and a second position to control the locking and unlocking of the second locking unit 52 and the first locking unit 51, thereby controlling the water propeller 100 to switch between a folded state and an unfolded state. Switching methods include, but are not limited to, sliding and pressing. Further, when the movable member 531 is in the first position, as shown in Figure 6, Figure 10, or Figure 12, the movable member 531 controls the second locking unit 52 to lock with the first locking unit 51. For the sake of brevity in the following description, the state in which the second locking unit 52 and the first locking unit 51 are locked is collectively referred to as the locking state of the locking module 50. When the locking module 50 is in the locked state, the operating lever 33 is connected to the main body 10 at both the transverse connecting shaft 40 and the locking module 50. Therefore, the operating lever 33 cannot rotate freely around the transverse connecting shaft 40, and the operating lever 33 is locked to the main body 10. The operating lever 33 and the main body 10 will not rotate relative to each other, and the water propeller 100 remains in a folded state, allowing the user to directly carry the water propeller 100 for transport. When the movable part 531 is in the second position, as shown in Figure 7, Figure 9, or Figure 13, the movable part 531 controls the second locking unit 52 to unlock from the first locking unit 51. For the sake of brevity in the following description, the state in which the second locking unit 52 and the first locking unit 51 are unlocked is referred to as the unlocked state. With the locking module 50 in the unlocked state, the operating lever 33 is connected to the main body 10 at one position on the transverse connecting axis 40, but not at the locking module 50. Therefore, the operating lever 33 can rotate freely around the transverse connecting axis 40, and the water propeller 100 is in the deployed state. The user can use the deployed operating lever 33 to adjust the direction of travel of the water propeller 100. In the unlocked state, the operating lever 33 no longer bears the weight of the main body 10, thus making it more flexible and easier for the user to operate and adjust.

[0037] Please also refer to Figures 1, 3, 5, and 14, as well as Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, the locking module 50 further includes a loading member 55, which is disposed on the main body 10 and protrudes from the main body 10. The loading member 55 has a loading cavity 553 with an opening 555 at one end. The second locking unit 52 and the control unit 53 are both disposed in the loading cavity 553. The opening 555 allows the first locking unit 51 to enter and exit the loading cavity 553 to lock or unlock with the second locking unit 52.

[0038] Specifically, the loading member 55 is provided with a loading cavity 553, which is used to accommodate at least the second locking unit 52 and the control unit 53. The loading member 55 is connected to and protrudes from the main body 10. Exemplarily, the loading member 55 protrudes towards the operating device 30. The protrusion direction of the loading member 55 is a first direction A, which is also the length direction of the loading member 55. The loading member 55 can avoid occupying the internal space of the main body 10, leaving more installation and operation space for other components of the main body 10. Furthermore, the second locking unit 52 and the control unit 53 are housed in the loading member 55, thus being independent of other components of the main body 10, reducing interference with other components, and to a certain extent protecting the surface of the main body 10 from wear or damage that may occur during the operation of the locking module 50, extending the service life of the main body 10. One end of the loading cavity 553 is provided with an opening 555, which is located on the rotation path of the first locking unit 51. When the locking module 50 switches from the unlocked state to the locked state, the operating device 30 rotates towards the loading cavity 553. The first locking unit 51, located on the operating device 30, rotates along with the operating device 30. After the first locking unit 51 enters the opening 555, it can lock with the second locking unit 52, thus putting the locking module 50 in the unlocked state. When the locking module 50 switches from the locked state to the unlocked state, the operating device 30 rotates away from the loading cavity 553, thus causing the first locking unit 51 to leave the opening 555. The loading cavity 553 provides a protective space for the second locking unit 52 and the control unit 53, extending their service life. The first locking unit 51 can freely enter and exit the loading cavity 553 through the opening 555, ensuring that the locking module 50 can switch between the locked and unlocked states.

[0039] Please continue to refer to Figures 3 and 5, as well as Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, the operating lever 33 is provided with a receiving groove 331, and the first locking unit 51 is housed in the receiving groove 331. When the operating device 30 and the main body 10 are folded, the loading member 55 extends into the receiving groove 331, and the first locking unit 51 extends into the loading cavity 553.

[0040] Specifically, the receiving slot 331 is used to accommodate the first locking unit 51. The receiving slot 331 provides a protective space for the first locking unit 51, preventing it from being bumped by external objects. When the operating device 30 needs to be folded with the main body 10, the operating device 30 rotates towards the loading cavity 553, and the loading component 55 extends into the receiving slot 331, which can further reduce the space occupied by the water propeller 100 in the folded state, making it easier for users to carry and store. The first locking unit 51 extends into the loading cavity 553 and can lock with the second locking unit 52 to keep the water propeller 100 in the folded state.

[0041] Referring to Figures 3 and 5, 6 and 7, or Figures 8 to 10, or Figures 11 to 13, in some embodiments, the loading member 55 includes a first loading member 551 and a second loading member 552, which cooperate to form a loading cavity 553. Specifically, the first loading member 551 and the second loading member 552 are connected to each other to form the loading cavity 553. In some embodiments, the first loading member 551 and the second loading member 552 are an integral structure, thereby improving the bonding strength between the first loading member 551 and the second loading member 552 and preventing separation of the first loading member 551 and the second loading member 552 during the operation of the loading member 55. In other embodiments, the first loading member 551 and the second loading member 552 are separate structures. Please refer to Figures 3 and 5, and Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, the first loading member 551 or the second loading member 552 is provided with an opening 557, and the movable member 531 has a portion extending from the opening 557. The portion of the movable member 531 extending from the opening 557 can receive a driving force to cause the movable member 531 to move to a first position or a second position. The opening 557 is used for a portion of the structure of the movable member 531 to extend. In some embodiments, the first loading member 551 is provided with an opening 557, and in other embodiments, the second loading member 552 is provided with an opening 557. In this application, since the first loading member 551 is located above the second loading member 552, and the opening 557 is located on the first loading member 551, a portion of the structure of the movable member 531 is also located above, making it easier for the user to observe and operate. The opening 557 can be one or more; in this application, the number of openings 557 is one. A portion of the movable member 531 is housed in the loading cavity 553, and another portion extends from the opening 557. The portion of the movable member 531 extending from the opening 557 can be held by a user or driven by other external means. Exemplarily, when a user applies a driving force (pushing or pulling the portion extending from the opening 557), the movable member 531 can move within the opening 557, thereby switching between a first position and a second position.

[0042] Referring to Figures 3 and 5, and Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13, in some embodiments, the control unit 53 further includes an elastic element 533. The elastic element 533 connects the end of the loading cavity 553 and the movable element 531. The elastic element 533 elastically abuts against the movable element 531, which is held in a first position by an elastic force. The movable element 531 is displaced to a second position by a driving force, and the elastic element 533 is compressed. Specifically, the elastic element 533 is located within the loading cavity 553, with one end abutting against the end of the loading cavity 553 and the other end abutting against the movable element 531. The elastic element 533 is used to reset the movable element 531 from the second position to the first position. When the movable element 531 is in the first position, as shown in Figures 6, 8, 10, 11, and 12, the elastic element 533 is in a naturally extended or slightly compressed state. When the movable member 531 is displaced to the second position under the action of the driving force, and changes from Figure 6 to Figure 7, or from Figure 8 to Figure 9, or from Figure 10 to Figure 9, or from Figure 12 to Figure 13, the elastic member 533 is compressed; when the driving force is removed, the elastic member 533 uses its own elastic potential energy to push the movable member 531 back to the first position. The elastic member 533 can be a structure with elastic deformation capability, such as a spring. There can be one or more elastic members 533. In this application, there are two elastic members 533, which are located on both sides of the loading cavity 553, respectively, which can provide a smoother driving force for the movable member 531, and the movable member 531 can be returned to the first position more smoothly.

[0043] Please refer to Figures 4 and 5, and Figures 6 and 7, or Figures 8 to 10. In some embodiments, the locking module 50 further includes a positioning element 57, which controls the movable element 531 to be fixed in the second position. Specifically, the positioning element 57 is used to fix the movable element 531 in the second position. The positioning element 57 can take various forms, such as an elastic snap, a spring plunger, a mechanical limit block, or a magnetic suction element. For example, the positioning element 57 can be a spring plunger disposed on the operating lever 33. The spring plunger has a head structure adapted to the mating hole or groove of the movable element 531. When the movable element 531 moves to the second position, the head of the spring plunger engages with the mating hole of the movable element 531, thereby achieving positioning. In this way, the positioning element 57 can reliably fix the movable element 531 in the second position, preventing external vibration or accidental interference from causing the movable element 531 to deviate from the second position. The following are three embodiments of the first locking unit 51 and the second locking unit 52. It is understood that in other embodiments of this application, the first locking unit 51 and the second locking unit 52 may also be other embodiments.

[0044] Referring to Figures 3 to 7 and Figure 14, in the first embodiment, the first locking unit 51 includes a hook member 511, and the second locking unit 52 includes a locking member 521. When the locking member 521 and the hook member 511 are engaged, the operating lever 33 is prohibited from moving towards the unfolded state relative to the main body 10; when the locking member 521 and the hook member 511 are disengaged, the operating lever 33 is allowed to move towards the unfolded state relative to the main body 10. Specifically, the hook member 511 is mounted on the operating lever 33, and the locking member 521 is mounted on the main body 10 via the loading member 55. A locking connection can be formed between the hook member 511 and the locking member 521. The number of hook members 511 and locking members 521 can be one or more, and the number of hook members 511 and locking members 521 can be the same or different. In some embodiments where the locking state is engaged, the hook member 511 and the locking member 521 are engaged. With the engaging engagement piece 521 and the hook piece 511 in the engaged state, the engaging engagement piece 521 and the hook piece 511 lock the operating lever 33 to the main body 10. The operating lever 33 cannot rotate freely around the transverse connecting shaft 40. That is, the operating lever 33 and the main body 10 are fixed in a folded state and will not rotate relative to each other. The operating lever 33 and the main body 10 cannot be unfolded. The user can carry the water propeller 100 for transportation. At this time, the advantage of the cantilever structure is that the operating lever 33 is connected and locked to the main body 10 through the transverse connecting shaft 40, which can effectively share the weight of the main body 10 and achieve smooth lifting, reducing instability during manual handling and enhancing ease of use. In some embodiments, the unlocked state is characterized by the disengagement of the locking member 521 and the hook member 511. When the locking member 521 and the hook member 511 are disengaged, they are not connected, and the operating lever 33 is connected to the main body 10 only via the transverse connecting shaft 40. The operating lever 33 can rotate freely around the transverse connecting shaft 40, thus placing the operating lever 33 and the main body 10 in an extended state. The user can use the extended operating lever 33 to adjust the direction of travel of the water propeller 100. In the unlocked state, the operating lever 33 no longer bears the weight of the main body 10, making it more flexible and easier for the user to operate and adjust.

[0045] Please refer to Figures 3 to 7 and Figure 14. In some embodiments, the movable member 531 is linearly slidably engaged within the loading cavity 553. When the movable member 531 is in the second position, it drives the engaging member 521 to rotate to the open state to release the hook member 511. When the movable member 531 is in the first position, it allows the engaging member 521 to rotate to the closed state to engage the hook member 511.

[0046] Specifically, as described above, when the portion of the movable member 531 located outside the loading cavity 553 is held by the user or driven by other external devices, the portion of the movable member 531 located within the loading cavity 553 can move within the opening 557, and the portion of the movable member 531 located within the loading cavity 553 also moves synchronously within the loading cavity 553, thereby enabling the movable member 531 to switch between a first position and a second position. In one mode of movement, the inner wall of the loading cavity 553 is planar and engages with the outer contour of the movable member 531. The inner wall of the loading cavity 553 restricts and guides the movable member 531 to slide linearly within the loading cavity 553. Exemplarily, the path of the linear sliding of the movable member 531 is perpendicular to both the extension direction of the transverse connecting shaft 40 and the body 10, that is, the movable member 531 slides linearly along the second direction B.

[0047] The engaging member 521 is rotatable about a fulcrum, thereby switching between an open and closed state. In one embodiment, the fulcrum is a protrusion in the loading cavity 553, to which the engaging member 521 is fitted. When the movable member 531 slides to the second position, the movable member 531 continuously applies a driving force to the engaging member 521 to maintain the movable member 531 in the open state. In the open state, the engaging member 521 does not restrict the hook member 511, the engaging member 521 is in a disengaged state relative to the hook member 511, the water propeller 100 is in the deployed state, and the operating lever 33 is rotatable about the transverse connecting shaft 40. The driving force can be applied directly or indirectly. In the direct application embodiment, the movable member 531 abuts against the engaging member 521 to apply a force. In the indirect application embodiment, the movable member 531 can indirectly transmit the force to the engaging member 521 through an intermediate member (e.g., a spring). In the embodiments of this application, the movable member 531 directly abuts against the engaging member 521, which can improve the transmission efficiency of the driving force. When the movable member 531 is in the first position, the movable member 531 does not apply a driving force to the engaging member 521, and the movable member 531 is in a closed state. In the closed state, the engaging member 521 and the hook member 511 can be engaged, and the water propeller 100 can be in a folded state.

[0048] Referring to Figures 3 to 7 and Figure 14, in some embodiments, the engaging member 521 includes two members spaced apart to form a channel 522. Each engaging member 521 includes an engaging portion 5211 and an actuating portion 5213, with the two engaging portions 5211 facing each other and the two actuating portions 5213 facing each other. A movable member 531 is in a second position, with its end extending forward from the channel 522 and pressing against and pushing the two actuating portions 5213 to rotate to an open position. The two actuating portions 5213, in the open position, cause the two engaging portions 5211 to rotate in the opposite direction to an open state. In a first position, the movable member 531 is disengaged from the actuating portion 5213, allowing the two actuating portions 5213 to return to a close position and cause the two engaging portions 5211 to rotate to a closed state. Specifically, the engaging portions 5211 and the actuating portions 5213 are connected to form the engaging member 521. In some embodiments, the engaging portion 5211 and the actuating portion 5213 are an integral structure, that is, the engaging portion 5211 and the actuating portion 5213 are a single unit, thereby improving the bonding strength between the engaging portion 5211 and the actuating portion 5213 and preventing separation of the engaging portion 5211 and the actuating portion 5213 during operation, thus ensuring the stability and reliability of the engaging component 521. In other embodiments, the engaging portion 5211 and the actuating portion 5213 are separate structures, that is, the engaging portion 5211 and the actuating portion 5213 are two different structures. In one example, the engaging portion 5211 and the actuating portion 5213 can be joined together by a detachable connection method, including but not limited to snap-fit ​​connections or threaded connections. In another example, the engaging portion 5211 and the actuating portion 5213 can be joined together by a non-detachable connection method, including but not limited to bonding or welding. In this application, the engaging portion 5211 and the actuating portion 5213 are integrally formed, which improves the structural strength of the engaging member 521. In an embodiment where there are two engaging members 521, the two engaging members 521 are spaced apart to form a channel 522. Further, the two engaging portions 5211 are opposite each other, and the two actuating portions 5213 are opposite each other to form the channel 522. The channel 522 is located on the movement path of the movable member 531, and the movable member 531 can extend into and out of the channel 522. When the engaging member 521 and the hook member 511 are engaged, the two engaging members 521 are located on both sides of the movable member 531. During the process of the movable member 531 moving from the first position to the second position (from Figure 6 to Figure 7), the movable member 531 moves towards the channel 522. The end of the movable member 531 on the side near the channel 522 extends forward along the channel 522. After extending forward a certain distance, the end of the movable member 531 abuts against the wave-pulling part 5213.As the movable member 531 extends further forward along the channel 522, the end of the movable member 531 applies an outward driving force to the actuating part 5213. Under the action of the driving force, the two actuating parts 5213 rotate around their respective fulcrums to the open position. During the rotation of the two actuating parts 5213 to the open position, the two engaging parts 5211 rotate away from each other, thereby expanding the size of the channel 522. With the positioning member 57 holding the movable member 531 in the second position, the engaging part 521 is in the open state, and the engaging part 521 and the hook part 511 cannot form an interlocking state, so the water propeller 100 can remain in the deployed state.

[0049] As the positioning member 57 releases its constraint on the movable member 531 and the movable member 531 moves from the second position to the first position (from Figure 7 to Figure 6), under the elastic potential energy of the elastic member 533, the movable member 531 moves away from the channel 522. The end of the movable member 531 near the channel 522 retracts along the channel 522. During the retraction, the driving force applied by the end of the movable member 531 to the actuating part 5213 gradually decreases, and the two actuating parts 5213 gradually move closer to each other. After retracting a certain distance, the end of the movable member 531 no longer abuts against the actuating part 5213, and the two actuating parts 5213 rotate towards each other and gradually return to the position where they are close to each other, thereby reducing the size of the channel 522 and causing the two engaging parts 5211 to rotate to the closed state. If the operating lever 33 is relatively close to the main body 10 at this time, the engaging part 521 and the hook part 511 can form an engaged state.

[0050] Referring to Figures 3 to 7 and Figure 14, in some embodiments, the movable member 531 has a wedge-shaped block 5311 near the end of the engaging member 521. The wedge-shaped block 5311 has two opposing inclined surfaces 53111, which can respectively abut against the two actuating portions 5213 to gradually push the two actuating portions 5213 apart. Specifically, the wedge-shaped block 5311 is used to abut against the actuating portions 5213 to transmit the driving force applied to the movable member 531 to the actuating portions 5213. The wedge-shaped block 5311 is housed within the loading cavity 553. When a driving force is applied to the movable member 531, the wedge-shaped block 5311 can slide within the loading cavity 553 to transmit the driving force to the actuating portions 5213. The wedge block 5311 has two opposing inclined surfaces 53111, which are oriented in different directions and can respectively abut against the actuating portions 5213 on the two engaging members 521. During the process of the movable member 531 switching from the first position to the second position, the two inclined surfaces 53111 contact the two actuating portions 5213 respectively, and the thrust generated by the inclined angle of the inclined surfaces 53111 gradually pushes the two actuating portions 5213 to rotate gradually away from each other, pushing the two actuating portions 5213 apart until the two actuating portions 5213 reach the open position.

[0051] During the process of pushing open the two actuating parts 5213, the wedge block 5311 can transmit the driving force applied to the movable member 531 to the actuating parts 5213, enabling the actuating parts 5213 to move to the open position. The inclined surface 53111 has a certain inclination angle. By gradually applying the pushing force, the inclined surface 53111 can make the movement of the actuating parts 5213 smoother and more gradual, rather than a sudden rapid movement. This can effectively avoid the actuating parts 5213 generating excessive impact force or uneven rotation during operation, thereby reducing friction and damage.

[0052] Please refer to Figures 3 to 7 and Figure 14. In some embodiments, the end of the movable member 531 is also provided with a connecting rod 5313 that protrudes from the wedge block 5311 and passes through the channel 522. When the wedge block 5311 pushes open the two actuating parts 5213 to achieve the engagement part 5211 in an open state, the connecting rod 5313 can be positioned and engaged with the first locking unit 51 to keep the engagement part 5211 in an open state.

[0053] Specifically, the connecting rod 5313 is used to engage with the first locking unit 51 to keep the engaging portion 5211 in an open state. The connecting rod 5313 is located on the side of the wedge block 5311 near the channel 522 and between the two inclined surfaces 53111. The connecting rod 5313 extends protrudingly in the direction near the channel 522, and at least part of the connecting rod 5313 is located in the channel 522. As the movable member 531 extends forward along the direction of the channel 522, the connecting rod 5313 extends forward along the direction of the channel 522 with the movement of the movable member 531 until at least part of the connecting rod 5313 is engaged with the first locking unit 51. The positioning and engagement methods include, but are not limited to: the first locking unit 51 is provided with a groove, hole, elastic buckle or other types of first limiting structure, and the connecting rod 5313 is provided with a second limiting structure. The first limiting structure on the first locking unit 51 can match the second limiting structure on the connecting rod 5313, thereby fixing the connecting rod 5313 and the first locking unit 51 and keeping the engaging part 5211 in the open state to prevent the engaging part 5211 from closing accidentally.

[0054] Please refer to Figures 3 to 7 and Figure 14. In some embodiments, the hook member 511 has two first slots 5111 with openings facing away from each other. The two engaging parts 5211 rotate to close and respectively engage with the two first slots 5111, and the first locking unit 51 locks with the second locking unit 52. Specifically, "openings facing away from each other" means that the opening directions of the two first slots 5111 on the hook member 511 are opposite to each other relative to a certain reference object. For example, with the central axis of the hook member 511 as a reference object, the openings of the two first slots 5111 face opposite directions to both sides of the central axis, thus forming a relative directional distribution; or, with the rotation direction of the hook member 511 as a reference object, the openings 555 of the two first slots 5111 unfold along the two ends of the rotation direction, presenting a back-facing feature. The two first slots 5111 have openings facing away from each other, which ensures that the two first slots 5111 are symmetrically distributed in the spatial layout. This allows the two engaging parts 5211 of the engaging member 521 to engage evenly on both sides of the hook member 511 during the locking process, reducing the tilting or incomplete locking problems that may be caused by unilateral force during engagement.

[0055] When each engaging part 5211 rotates to the closed state, it engages into its corresponding first slot 5111, ensuring that the engaging part 5211 is securely fixed to the hook member 511. The opposing openings allow each engaging part 5211 to independently and accurately enter its corresponding slot during the closing process, thus avoiding the possibility of interference or mis-engaging between the engaging parts 5211. When the engaging parts 5211 rotate to the closed state, they engage with the first slot 5111 of the hook member 511 through their respective ends. At this time, the first locking unit 51 and the second locking unit 52 lock together, and the locking module 50 ensures that the engaging parts 5211 will not loosen or fall off due to external forces or other factors in the closed state. In this state, the connection method between the engaging parts 5211 and the hook member 511 ensures that the cantilever structure can withstand greater external forces during use, while preventing the hook member 511 from accidentally disengaging, ensuring that the water propulsion device 100 remains in a folded state.

[0056] Please refer to Figures 3 to 7 and Figure 14. In some embodiments, the engaging member 521 is rotatably connected to the loading member 55 via a pivot 559. The second locking unit 52 includes a torsion spring 524, which is sleeved on the pivot 559 and acts on the loading member 55 and the engaging member 521 to drive the engaging member 521 to close. When the movable member 531 is in the first position, the engaging member 521 is in a closed state under the action of the torsion spring 524.

[0057] Specifically, the loading cavity 553 is provided with a rotating shaft 559 corresponding to the number of engaging members 521. The engaging members 521 are fitted onto the rotating shaft 559, and a torsion spring 524 is provided between the engaging members 521 and the rotating shaft 559. When the movable member 531 is in the first position, the engaging members 521 are not driven and remain in a closed state under the constraint of the torsion spring 524. When the movable member 531 switches from the first position to the second position, the engaging members 521 are gradually opened by a driving force, gradually changing from a closed state to an open state. The torsion spring 524 twists under the driving force, causing the engaging members 521 to tend to return to a closed state. Furthermore, the hook member 511 enters the channel 522 between two engaging members 521. When the movable part 531 switches from the second position to the first position, the driving force is gradually removed, the torsion spring 524 returns to its original torsion state, and the locking part 521, driven by the torsion spring 524, resets and clamps again, returning to the closed state and forming an engagement state with the hook part 511, thereby locking the operating lever 33 and the main body 10, and keeping the water propeller 100 in the folded state. At this time, the user can lift the operating lever 33 to move the water propeller 100. During the moving process, due to the heavy working force of the water propeller 100 and the torsional effect of the torsion spring 524, plus the torque generated by the distance between the working force and the central axis of the locking part 521 when it is subjected to the working force, the locking part 521 can continuously clamp, thereby ensuring that the locking part 521 will not separate from the hook part 511 during the moving of the water propeller 100, ensuring the stability and reliability of the moving process.

[0058] If it is necessary to switch the engagement state between the hook 511 and the engaging member 521 to the disengaged state, first rotate the operating device 30 a certain distance towards the loading cavity 553. At this time, a gap will be left between the hook 511 and the engaging member 521 for the engaging member 521 to move. Further, apply a driving force to the movable member 531 to switch the movable member 531 from the first position to the second position. The movable member 531 drives the engaging member 521 from the closed state to the open state, and the hook 511 can retract from the channel 522. After the hook 511 retracts, the driving force applied to the movable member 531 can be removed.

[0059] Please refer to Figures 3 to 7 and Figure 14. In some embodiments, at least one of the engaging member 521 and the hook member 511 is equipped with a guide surface 5217. When the movable member 531 is in the first position, the hook member 511 is folded relative to the main body 10 and closes to the engaging member 521 as the operating lever 33 moves. The guide surface 5217 guides the engaging member 521 to rotate to the open state first, and then allows the torsion spring 524 to drive the engaging member 521 to rotate to the engaged state. Specifically, the guide surface 5217 is used to guide the hook member 511 into the channel 522 and engage with the engaging member 521 as the operating lever 33 rotates towards the interior of the loading cavity 553. There can be one or more guide surfaces 5217. In this application, there are two guide surfaces 5217, which are arranged opposite each other in the second direction B and are respectively opposite to the two engaging members 521. When the movable part 531 is in the first position, the operating device 30 rotates towards the loading cavity 553. At this time, the hook part 511 moves towards the engaging part 521 relative to the main body 10 along with the operating device 30. The guide surface 5217 abuts against the engaging part 521 and exerts a pushing force on the engaging part 521. The pushing force pushes the two engaging parts 521 to rotate, and the engaging part 521 changes from a closed state to an open state. The torsion spring 524 twists, causing the engaging part 521 to tend to return to the closed state. After the channel 522 expands to the extent that the hook part 511 can enter, the hook part 511 rotates into the channel 522 under the action of gravity, and the guide surface 5217 no longer abuts against the engaging part 521. The engaging part 521 is reset and clamped again under the drive of the torsion spring 524, returning to the closed state and forming an engagement state with the hook part 511. The water propulsion device 100 is supported and pushed by the guide surface 5217 to rotate the locking member 521. The hook member 511 and the locking member 521 can form an interlocking state under the action of gravity and torsion spring 524. The user can fold the water propulsion device 100 without operating the movable member 531.

[0060] Please refer to Figures 3 to 7 and Figure 14. In some embodiments, the guide surface 5217 is configured as an inclined surface relative to the approach direction of the engaging member 521 and the hook member 511. The driving force of the engaging member 521 and the hook member 511 approaching and contacting each other forms a component force on the inclined surface that drives the engaging member 521 to open and rotate. Specifically, when the operating device 30 rotates towards the loading cavity 553, the hook member 511 folds relative to the main body 10 and approaches the engaging member 521 along with the operating device 30. At this time, the front end of the hook member 511 contacts the guide surface 5217 and applies a driving force along the inclined direction of the guide surface 5217. Since the guide surface 5217 is an inclined surface, the driving force is decomposed into a vertical component along the first direction A and a horizontal component along the second direction B. The horizontal component acts on the engaging member 521, pushing it to rotate around the pivot 559, causing it to change from a closed state to an open state. As the channel 522 expands to the point where the hook member 511 can enter, the hook member 511 continues to press against the engaging member 521, entering the channel 522 and forming an engagement with it. After the engaging member 521 opens to a predetermined angle, the guide surface 5217 disengages from the hook member 511. At this time, the engaging member 521, driven by the torsion spring 524, returns to a closed state and bites the hook member 511, thus locking the locking module 50.

[0061] Please refer to Figures 3 to 7. In some embodiments, the positioning member 517 of the first locking unit 51 includes a positioning post, and the movable member 531 is provided with a positioning hole 5315. When the movable member 531 moves to the second position, the end of the positioning post is inserted into the positioning hole 5315, the movable member 531 is positioned and held in the second position, and the engaging member 521 remains in the open state.

[0062] Specifically, the positioning post and positioning hole 5315 are connected to each other to position and hold the movable member 531 in the second position. There can be one or more positioning posts and positioning holes 5315. In other embodiments of this application, the first locking unit 51 may have a positioning hole, and the movable member 531 may have a positioning post. When the movable member 531 moves to the second position, the end of the positioning post can be inserted into the positioning hole, thereby restricting the movable member 531 to the second position. Correspondingly, the engaging member 521 remains open to prevent accidental engagement between the engaging member 521 and the hook member 511 due to repositioning or closing. At this time, if the operating lever 33 is rotated to the side away from the loading cavity 553, the positioning post and positioning hole 5315 are disengaged, the operating device 30 is unlocked from the main body 10, and the elastic restoring force of the elastic member 533 causes the movable member 531 to move back to the first position along the first direction A.

[0063] Please refer to Figures 3 to 7. In some embodiments, a plunger spring 5115 is provided between the positioning pin and the operating rod 33. The positioning pin can be inserted into the positioning hole 5315 along the sliding direction A of the vertical movable member 531 under the elastic force of the plunger spring 5115.

[0064] Specifically, the plunger spring 5115 provides an elastic force perpendicular to the sliding direction A of the movable member 531, thereby pushing the positioning pin to move along this direction and insert into the positioning hole 5315. During the process of the movable member 531 reaching the second position, the connecting rod 5313 of the movable member 531 presses against the positioning pin, which in turn compresses the plunger spring 5115. When the movable member 531 moves to the second position, the positioning hole 5315 on the connecting rod 5313 aligns with the positioning pin, and the elastic force of the plunger spring 5115 automatically pushes the positioning pin upward and inserts it into the positioning hole 5315 without any additional external operation. At the same time, the positioning pin can automatically reset under the elastic force of the plunger spring 5115.

[0065] Please refer to Figures 3 to 7. In some embodiments, the end of the positioning post is provided with a ball end. When the movable member 531 moves from the second position to the first position, the ball end can be retracted and disengaged from the positioning hole 5315 by the action of the movable member 531. Specifically, the ball end has a smooth curved surface structure, which can reduce the resistance of the positioning post exiting the positioning hole 5315 when the movable member 531 moves from the second position to the first position, making the exit of the positioning post from the positioning hole 5315 smoother, avoiding jamming when the movable member 531 switches from the second position to the first position, and also reducing the wear between the positioning post and the movable member 531, thus extending the service life of the positioning post and the movable member 531.

[0066] Please refer to Figures 1, 3, 5, and 8 to 10. In some embodiments, the first locking unit 51 includes a socket 513, and the second locking unit 52 includes a retractable sliding pin 523. Specifically: when the end of the sliding pin 523 extends into the socket 513 and is in a plugged-in engagement state, the operating lever 33 is prohibited from moving towards the unfolded state relative to the main body 10; when the end of the sliding pin 523 retracts from the socket 513 and is in a disengaged state, the operating lever 33 is allowed to move towards the unfolded state relative to the main body 10.

[0067] Specifically, the insertion hole 513 is installed on the operating lever 33, and the sliding pin 523 is installed on the main body 10. The insertion hole 513 and the sliding pin 523 can form a snap-fit ​​connection. The number of insertion holes 513 and sliding pins 523 can be one or more, and the number of insertion holes 513 and sliding pins 523 can be the same or different. In some embodiments, the locking state is that the sliding pin 523 and the insertion hole 513 are in a plug-in engagement state. When the sliding pin 523 and the insertion hole 513 are in this engagement state, the sliding pin 523 and the insertion hole 513 are plugged in, thereby locking the operating lever 33 and the main body 10. The operating lever 33 cannot rotate freely around the transverse connecting shaft 40; that is, the operating lever 33 and the main body 10 are fixed in a folded state and will not rotate relative to each other. The operating lever 33 and the main body 10 cannot be unfolded, allowing the user to carry the water propeller 100 for transport. At this point, the advantage of the cantilever structure is that the operating lever 33 is connected and locked to the main body 10 of the machine body through the transverse connecting shaft 40, which can effectively share the weight of the main body 10 of the machine body and achieve smooth lifting, reduce instability during manual handling, and enhance ease of use.

[0068] In some embodiments, the unlocked state is characterized by the sliding pin 523 being separated from the socket 513. When the sliding pin 523 is separated from the socket 513, they are not connected. The operating lever 33 is connected to the main body 10 only via the transverse connecting shaft 40. The operating lever 33 can rotate freely around the transverse connecting shaft 40, thus placing the operating lever 33 and the main body 10 in an extended state. The user can use the extended operating lever 33 to adjust the direction of travel of the water propeller 100. In the unlocked state, the operating lever 33 no longer bears the weight of the main body 10, making it more flexible and easier for the user to operate and adjust.

[0069] Please refer to Figures 1, 3, 5, and 8 to 10. In some embodiments, the movable member 531 can reciprocate within the loading cavity 553 along a first direction A, and the sliding pin 523 can reciprocate within the loading cavity 553 along a second direction B, which is perpendicular to the first direction A. During the process of the second locking unit 52 and the first locking unit 51 switching from the unlocked state to the locked state, the sliding pin 523 first moves along the positive direction of the second direction B, and then moves in the reverse direction of the second direction B. During the process of the locking module 50 switching from the locked state to the unlocked state, the sliding pin 523 first moves along the positive direction of the second direction B, and then moves in the reverse direction of the second direction B.

[0070] Specifically, reciprocating movement refers to the repeated linear movement of the movable element 531 or the sliding pin 523 in a predetermined direction. The reciprocating motion of the movable element 531 is driven by user operation or an internal drive mechanism. For example, the reciprocating movement of the movable element 531 can be achieved by manual push-pull by the user or by a spring return structure. The reciprocating movement of the sliding pin 523 can be driven by a spring, gear, or linkage 5313 structure. The reciprocating movement of the movable element 531 occurs along a first direction A, which drives the sliding pin 523 to move synchronously along a second direction B, thereby achieving the switching between the locked state and the unlocked state of the second locking unit 52 and the first locking unit 51 in the locking module 50.

[0071] During the transition from the unlocked state to the locked state between the second locking unit 52 and the first locking unit 51, the operating device 30 rotates towards the loading cavity 553. At least a portion of the operating device 30 abuts against the sliding pin 523 during this rotation, applying a driving force to the sliding pin 523 and pushing it to move forward along the second direction B. This forward movement refers to the direction in which the sliding pin 523 retracts into the loading cavity 553 along the second direction. For the left sliding pin 523 in Figures 8 to 10, the forward direction of the second direction B is direction B1; for the right sliding pin 523 in Figures 8 to 10, the forward direction of the second direction B is direction B2, and the reverse direction of the second direction B is direction B1. The operating device 30 continues to rotate towards the loading cavity 553. When the insertion hole 513 aligns with the sliding pin 523, the sliding pin 523 moves in the reverse direction of the second direction B. The reverse movement refers to the direction in which the sliding pin 523 extends outward from the loading component 55 along the second direction. For the left sliding pin 523 in Figures 8 to 10, the reverse direction of the second direction B is direction B2; for the right sliding pin 523 in Figures 8 to 10, the reverse direction of the second direction B is direction B1. The end of the sliding pin 523 is inserted into the insertion hole 513, forming a plug-in engagement, and the sliding pin 523 and the insertion hole 513 enter a locked state. In the locked state, the inner wall of the insertion hole 513 restricts the relative movement of the sliding pin 523 in the first direction A, thereby locking the operating lever 33 and the main body 10, ensuring that the water propeller 100 remains in a folded state, preventing the water propeller 100 from being accidentally unfolded, and facilitating the user to safely transport the water propeller 100 in the locked state. During the process of the second locking unit 52 and the first locking unit 51 switching from the locked state to the unlocked state, the movement sequence of the sliding pin 523 is the reverse of the above process. The operating device 30 rotates away from the loading cavity 553. During this rotation, the sliding pin 523 moves forward along the second direction B under the driving force, that is, it retracts into the loading cavity 553 along the second direction B, thereby gradually withdrawing from the insertion hole 513 and releasing the locked state. For example, the driving force can be applied by the inner wall of the insertion hole 513 during the rotation of the operating device 30 away from the loading cavity 553, or it can be applied by the movable member 531. Subsequently, the driving force is released, and the sliding pin 523 moves back to its initial position (the position protruding from the loading cavity 553 as shown in Figure 8), remaining in the unlocked state (as shown in Figure 8). In the unlocked state, the operating lever 33 is no longer restricted by the sliding pin 523 and can rotate freely around the transverse connecting shaft 40, thereby entering the deployed state. The user can control the direction of travel of the water propeller 100 through the deployed operating lever 33.

[0072] Please refer to Figures 1, 3, 5, and 8 to 10. In some embodiments, two sliding pins 523 are included, spaced apart and forming a channel 522. Two insertion holes 513 are included, and the two sliding pins 523 are used to engage with the two insertion holes 513 respectively. The movable member 531 includes a first inclined surface 53112 and a second inclined surface 53113, which are inclined relative to a first direction A and in opposite directions. The sliding pin 523 includes a first mating surface 5231 and a second mating surface 5232, which are inclined relative to a second direction B and in opposite directions. When the movable member 531 moves in the opposite direction A1 of the first direction A to enter the channel 522, the movable member 531 and the sliding pin 523 achieve transmission through the engagement of the first inclined surface 53112 and the second inclined surface 53113 with the first mating surface 5231 and the second mating surface 5232 respectively.

[0073] Specifically, both the sliding pin 523 and the insertion hole 513 include two pins. The two sliding pins 523 are spaced apart and opposite each other, forming a channel 522. The two sliding pins 523 respectively engage with the two insertion holes 513. The channel 522 is the movement path of the movable member 531, which can move into the channel 522 in the opposite direction A1 of the first direction A. The opposite movement of the movable member 531 is a movement towards the channel 522 in the first direction A. The channel 522 can guide and limit the movable member 531. When the movable member 531 moves into the channel 522 in the opposite direction A1 of the first direction A, the first inclined surface 53112 and the second inclined surface 53113 contact the first mating surface 5231 and the second mating surface 5232 of the sliding pin 523, respectively. Since the inclined directions of the two are opposite, the movable member 531 applies a driving force in the second direction B to the sliding pin 523, thereby driving the sliding pin 523 to extend out of the loading member 55 in the opposite direction of the second direction B.

[0074] The interaction between the first mating surface 5231 and the first inclined surface 53112, and between the second mating surface 5232 and the second inclined surface 53113, simplifies the transmission structure. It also utilizes the geometric characteristics of the inclined surface 53111 to improve transmission efficiency and reliability, avoids jamming or poor fit problems that may occur in traditional straight contact, and improves the working stability and service life of the water propeller 100.

[0075] Please refer to Figures 1, 3, 5, and Figures 8 to 10. In some embodiments, the loading cavity 553 includes a first cavity 5531 and a second cavity 5532 that communicate with each other. The second cavity 5532 surrounds the first cavity 5531. The movable member 531 is housed in the first cavity 5531 and can reciprocate within the first cavity 5531 along a first direction A. The second locking unit 52 also includes a stop member 525 and a reset member 527. The stop member 525 is sleeved on the sliding pin 523. The reset member 527 is disposed within the second cavity 5532 and sleeved on the sliding pin 523. Both ends of the reset member 527 are connected to the inner wall of the second cavity 5532 and the stop member 525, respectively. The reset member 527 is used to provide a force through the stop member 525 to the sliding pin 523 to move in the opposite direction B.

[0076] Specifically, the movable member 531 is housed within the first cavity 5531, and the sliding pin 523 is housed within the second cavity 5532, providing independent spaces for the movable member 531 and the sliding pin 523. A stop member 525 is sleeved on the sliding pin 523 to restrict its movement in the second direction B, preventing it from dislodging from the second cavity 5532. A reset member 527 is disposed within the second cavity 5532 and sleeved on the sliding pin 523, with its two ends connected to the inner wall of the second cavity 5532 and the stop member 525, respectively. The reset member 527 includes, but is not limited to, a spring. The stop member 525 includes, but is not limited to, a retaining ring. In one embodiment, when the sliding pin 523 and the socket 513 shown in FIG8 are not engaged (the operating device 30 is unlocked from the main body 10), the elastic member 533 applies a force A1 in the opposite direction of the first direction A to the movable member 531, causing the movable member 531 to enter the channel 522 and be in the first position. The first inclined surface 53112 and the second inclined surface 53113 of the movable member 531 engage with the first mating surface 5231 and the second mating surface 5232, respectively, and apply a force to the sliding pin 523, which causes the sliding pin 523 to extend from the second cavity 5532 to the outside of the loading member 55. The stop member 525 and the reset member 527 work together. The reset member 527 is compressed or in a natural state. The compressed reset member 527 stores its elastic potential energy. During the transition from the unlocked state shown in Figure 8 to the locked state shown in Figure 10, an intermediate state as shown in Figure 9 is experienced. In the intermediate state, the inner wall of the operating lever 33 presses the sliding pin 523 to retract into the second cavity 5532 along the positive direction of the second direction B. The reset member 527 is stretched. The first mating surface 5231 and the second mating surface 5232 of the sliding pin 523 respectively engage with the first inclined surface 53112 and the second inclined surface 53113 of the movable member 531 and apply a force to the movable member 531. This force causes the movable member 531 to move to the second position along the positive direction A2 of the first direction A. The movable member 531 compresses the elastic member 533 and stores its elastic potential energy. When the operating device 30 and the loading component 55 move relative to each other until the sliding pin 523 aligns with the insertion hole 513, as shown in Figure 10, the force originally applied to the sliding pin 523 by the inner wall of the operating rod 33 disappears. The reset component 527 resets and shortens in length, and drives the sliding pin 523 to move in the opposite direction B2 of the second direction B. At the same time, the elastic potential energy of the elastic component 533 causes the movable component 531 to move in the opposite direction A1 of the first direction A. The movable component 531 transmits the force to the sliding pin 523 through the transmission cooperation between the first inclined surface 53112 and the second inclined surface 53113 and the first mating surface 5231 and the second mating surface 5232, respectively. This pushes the sliding pin 523 to move in the opposite direction of the second direction B until it protrudes outside the loading component 55 and engages with the insertion hole 513. The reset component 527 resets to the initial state shown in Figure 8, and the operating device 30 and the main body 10 are locked.

[0077] Please refer to Figures 1, 3, 5, and 8 to 10. In some embodiments, during the process of the second locking unit 52 and the first locking unit 51 switching from the unlocked state to the locked state, the movable member 531 is moved from the first position to the second position by an external force. The elastic restoring force of the reset member 527 drives the sliding pin 523 to retract into the first cavity 5531. When the movable member 531 is held in the second position, the sliding pin 523 is aligned with the insertion hole 513, and the external force on the movable member 531 is eliminated, the elastic member 533 is used to drive the movable member 531 to move from the second position back to the first position. The reset member 527 is elastically compressed by the component force of the elastic member 533.

[0078] Specifically, in another embodiment, when the sliding pin 523 shown in FIG. 8 is not engaged with the insertion hole 513, the elastic member 533 applies a force A1 in the opposite direction of the first direction A to the movable member 531, causing the movable member 531 to enter the channel 522 and be in the first position. The first inclined surface 53112 and the second inclined surface 53113 of the movable member 531 engage with the first mating surface 5231 and the second mating surface 5232 respectively, and apply a force to the sliding pin 523, which causes the sliding pin 523 to extend from the second cavity 5532 to the outside of the loading member 55. At this time, the stop member 525 and the reset member 527 work together, and the reset member 527 is compressed, storing its elastic potential energy. During the transition from the unlocked state shown in Figure 8 to the locked state shown in Figure 10, an intermediate state as shown in Figure 9 is encountered. In this intermediate state, the user operates the movable part 531 to move it to the second position along the positive direction A2 of the first direction A. The elastic part 533 is compressed and stores elastic potential energy. The reset part 527 extends and, through the stop part 525, drives the sliding pin 523 to retract into the second cavity 5532 along the positive direction B. At this time, the operating lever 33 and the loading part 55 can approach each other (as shown in Figure 9) until the sliding pin 523 aligns with the insertion hole 513 (as shown in Figure 10). When the driving force is released to the movable member 531, the elastic potential energy stored in the elastic member 533 drives the movable member 531 to move in the opposite direction A1 of the first direction A. The movable member 531, through the transmission engagement of the first inclined surface 53112 and the second inclined surface 53113 with the first mating surface 5231 and the second mating surface 5232 respectively, realizes the transmission of force to the sliding pin 523, pushing the sliding pin 523 to move in the opposite direction B of the second direction to protrude from the loading member 55 and engage with the insertion hole 513. The reset member 527 is reset to the initial state shown in Figure 8, and the operating device 30 is locked with the main body 10.

[0079] Please refer to Figures 1, 3, 5, and 11 to 13. In some embodiments, the first locking unit 51 includes a first magnetic element 515, and the second locking unit 52 includes a second magnetic element 528. Specifically: when the second magnetic element 528 and the first magnetic element 515 are in an engaged state, the operating lever 33 is prohibited from moving towards the unfolded state relative to the main body 10; when the second magnetic element 528 and the first magnetic element 515 are in a non-engaged state, the operating lever 33 is allowed to move towards the unfolded state relative to the main body 10.

[0080] Specifically, the first magnetic element 515 is mounted on the operating lever 33, and the second magnetic element 528 is mounted on the main body 10 via the loading element 55. A magnetic connection can be formed between the first magnetic element 515 and the second magnetic element 528. The number of the first magnetic element 515 and the second magnetic element 528 can be one or more, and the number of the first magnetic element 515 and the second magnetic element 528 can be the same or different. In some embodiments, the locking state is that the second magnetic element 528 and the first magnetic element 515 are in an attractive state. When the second magnetic element 528 and the first magnetic element 515 are in an attractive state, they attract each other, thereby locking the operating lever 33 and the main body 10. The operating lever 33 cannot rotate freely around the transverse connecting axis 40; that is, the operating lever 33 and the main body 10 are fixed in a folded state and will not rotate relative to each other. The operating lever 33 and the main body 10 cannot be unfolded, allowing the user to carry the water propulsion device 100 for transport. At this point, the advantage of the cantilever structure is that the operating lever 33 is connected and locked to the main body 10 via the transverse connecting shaft 40, thereby effectively distributing the weight of the main body 10 and achieving smooth lifting, reducing instability during manual handling, and enhancing ease of use. In some embodiments, the unlocked state is that the second magnetic component 528 and the first magnetic component 515 are in a non-attractive state. When the second magnetic component 528 and the first magnetic component 515 are in a non-attractive state, they are not connected, and the operating lever 33 is only connected to the main body 10 via the transverse connecting shaft 40. The operating lever 33 can rotate freely around the transverse connecting shaft 40, so the operating lever 33 and the main body 10 are in an unfolded state, and the user can use the unfolded operating lever 33 to adjust the direction of travel of the water propeller 100. In the unlocked state, the operating lever 33 no longer bears the weight of the main body 10, thus it is more flexible and easier for the user to operate and adjust.

[0081] Please refer to Figures 1, 3, 5, and 11 to 13. In some embodiments, the movable member 531 can reciprocate within the loading cavity 553 along a first direction A. During the transition from the unlocked state to the locked state between the second locking unit 52 and the first locking unit 51, the movable member 531 remains in the first position, and the operating lever 33 and the loading member 55 are close to each other. During the transition from the locked state to the unlocked state between the second locking unit 52 and the first locking unit 51, the movable member 531 first moves from the first position to the second position along the positive direction A2 of the first direction A, and then moves from the second position back to the first position along the negative direction A1 of the first direction A.

[0082] Specifically, forward movement refers to the movement of movable member 531 from the first position to the second position. Reverse movement refers to the movement of movable member 531 from the second position to the first position. The driving force for forward and reverse movement can be applied to movable member 531. During the process of the second locking unit 52 and the first locking unit 51 switching from the unlocked state to the locked state (switching from the state shown in FIG11 to the state shown in FIG12), the operating lever 33 and the loading member 55 move closer to each other. The way they move closer to each other can be that the operating device 30 rotates towards the loading cavity 553, or the main body 10 rotates towards the receiving groove 331. During the process of switching from the locked state to the unlocked state between the second locking unit 52 and the first locking unit 51 (switching from the state shown in Figure 12 to the state shown in Figure 13), the movable member 531 first moves from the first position to the second position along the positive direction A2 of the first direction A (the user can drive the movable member 531 to move from the first position to the second position along the positive direction A2 of the first direction A by manipulating the part of the movable member 531 exposed from the opening 557), so that the attraction between the first magnetic member 515 and the second magnetic member 528 is released. At this time, the elastic member 533 is compressed and stores elastic potential energy. At the same time, the operating lever 33 can be rotated away from the main body 10 to detach from the main body 10 so that the water propulsion device 100 is in the deployed state. After the water propulsion device 100 is in the deployed state, if the user releases the part of the movable member 531 exposed from the opening 557, the movable member 531 can move from the second position to the first position along the opposite direction A1 of the first direction A. The elastic potential energy of the elastic member 533 can drive the movable member 531 to move from the second position to the first position along the opposite direction A1 of the first direction A.

[0083] Please refer to Figures 1, 3, 5, and 11 to 12. In some embodiments, the first magnetic element 515 includes an electromagnet; the first locking unit 51 also includes a switch 516; the movable element 531 includes a movable portion 5316 and a trigger portion 5317 disposed at one end of the movable portion 5316 near the operating lever 33; when the movable element 531 is in the first position, the trigger portion 5317 abuts against the switch 516 and controls the first magnetic element 515 to be energized, so that an attractive force is generated between the first magnetic element 515 and the second magnetic element 528; when the movable element 531 is in the second position, the trigger portion 5317 separates from the switch 516 and controls the first magnetic element 515 to be de-energized, so that the attractive force between the first magnetic element 515 and the second magnetic element 528 is released.

[0084] Specifically, in some embodiments, the first magnetic element 515 is an electromagnet, that is, the first magnetic element 515 is a magnetic element that generates magnetism when energized and loses its electromagnetic properties when de-energized. When the first magnetic element 515 is energized, it generates a magnetic field and forms a magnetic attraction force with the second magnetic element 528. The magnetic attraction force locks the operating device 30 to the main body 10. When the first magnetic element 515 is de-energized, the magnetic field disappears, and the magnetic attraction force formed with the second magnetic element 528 also disappears, allowing the operating device 30 to be unlocked from the main body 10. The switch element 516 is a component used to receive external trigger signals and output control electrical signals based on the trigger signals. This control electrical signal is used to control whether the first magnetic element 515 is energized or de-energized, thereby controlling the generation or release of the attraction force. Correspondingly, the trigger part 5317 is a component used to apply the external trigger signal to the switch element 516. When the triggering part 5317 contacts the switching element 516, if the state changes from the non-contact state shown in FIG11 to the contact state shown in FIG12, the triggering part 5317 triggers the switching element 516. The switching element 516 receives the trigger signal and outputs a control electrical signal. This control electrical signal controls the first magnetic element 515 to be energized. The first magnetic element 515 then generates a magnetic field and forms a magnetic attraction with the second magnetic element 528. The magnetic attraction locks the operating device 30 with the main body 10. When the triggering part 5317 separates from the switching element 516, if the state changes from the contact state shown in FIG12 to the separation state shown in FIG13, the triggering part 5317 does not trigger the switching element 516. The switching element 516 does not receive the trigger signal, and the control electrical signal output by the switching element 516 controls the first magnetic element 515 to be de-energized. No magnetic attraction is formed between the first magnetic element 515 and the second magnetic element 528 (the magnetic attraction disappears), and the operating device 30 can be unlocked from the main body 10. The first magnetic component 515 and the switch component 516 are both mounted on the operating lever 33, which facilitates wiring.

[0085] Please refer to Figures 1, 3, 5, and 11 to 12. In some embodiments, the second magnetic element 528 includes an electromagnet; the first locking unit 51 further includes a trigger, and the second locking unit 52 further includes a switch, which is disposed at one end of the movable part 5316 of the movable element 531 near the operating lever 33. When the movable element 531 is in the first position, the trigger contacts the switch and controls the energization of the second magnetic element 528, so that an attractive force is generated between the first magnetic element 515 and the second magnetic element 528; when the movable element 531 is in the second position, the trigger separates from the switch and controls the de-energization of the second magnetic element 528, so that the attractive force between the first magnetic element 515 and the second magnetic element 528 is released.

[0086] Specifically, in some embodiments, the second magnetic element 528 includes an electromagnet, that is, the second magnetic element 528 is a magnetic element that generates magnetism when energized and loses its electromagnetic properties when de-energized. When the second magnetic element 528 is energized, it generates a magnetic field that forms a magnetic attraction with the first magnetic element 515. The magnetic attraction locks the operating device 30 to the main body 10. When the second magnetic element 528 is de-energized, the magnetic field disappears, and the magnetic attraction with the first magnetic element 515 also disappears, allowing the operating device 30 to be unlocked from the main body 10. The switch is a component that receives an external trigger signal and outputs a control electrical signal based on the trigger signal. This control electrical signal is used to control whether the second magnetic element 528 is energized or de-energized, thereby controlling the generation or release of the attraction force. Correspondingly, the triggering part is a component that applies the external trigger signal to the switch. When the trigger unit contacts the switch, as shown in Figure 11 (non-contact state) to Figure 12 (contact state), the trigger unit activates the switch. The switch receives the trigger signal and outputs a control signal, which energizes the second magnetic component 528. The second magnetic component 528 then generates a magnetic field, forming a magnetic attraction with the first magnetic component 515. This magnetic attraction locks the operating device 30 to the main body 10. When the trigger unit separates from the switch, as shown in Figure 12 (contact state) to Figure 13 (separation state), the trigger unit does not activate the switch. The switch does not receive the trigger signal, and the control signal output by the switch de-energizes the second magnetic component 528. No magnetic attraction is formed between the first magnetic component 515 and the second magnetic component 528 (or the magnetic attraction disappears), and the operating device 30 can be unlocked from the main body 10. Both the second magnetic component 528 and the switch are mounted on the main body 10 of the operating lever, facilitating wiring.

[0087] Please refer to Figures 1, 3, 5, and 11 to 12. In some embodiments, the first magnetic element 515 includes at least two, which are spaced apart and surround to form a first channel 5221. The second magnetic element 528 includes at least two, which are spaced apart and surround to form a second channel 5222. The at least two second magnetic elements 528 and the at least two first magnetic elements 515 are respectively disposed opposite to each other in the first direction A. The movable element 531 can move in the opposite direction A1 or the forward direction A2 of the first direction A to enter and exit the second channel 5222 and the first channel 5221.

[0088] The number of first magnetic components 515 can be one, two, three, or more; correspondingly, the number of second magnetic components 528 can also be one, two, three, or more. The number of first magnetic components 515 and the number of second magnetic components 528 are consistent, and the first magnetic components 515 and the second magnetic components 528 are arranged in a ring around each other at intervals. Therefore, there can be multiple connection points between the first magnetic components 515 and the second magnetic components 528 due to attraction, and they are evenly distributed. This can evenly distribute the locking force between the operating device 30 and the main body 10, so that the water propeller 100 in the folded state can maintain a stable folded state.

[0089] Please refer to Figures 1, 3, 5, and 14. In some embodiments, the water propulsion device 100 includes a connecting assembly 70, which can be connected to the water carrier 300. The main body 10 includes a steering seat 11 and a body 13. The steering seat 11 is connected to the connecting assembly 70. The body 13 is disposed on a steering shaft 113 rotatably connected to the steering seat 11. The steering shaft 113 is perpendicular to the transverse connecting shaft 40 and perpendicular to the direction of the propulsion force of the propulsion device 20. The propulsion device 20 is connected to one end of the body 13. The operating device 30 is connected to the end of the body 13 away from the propulsion device 20 via the transverse connecting shaft 40. The operating device 30 rotates relative to the body 13 to a state that is approximately perpendicular to the steering shaft 113. The end of the operating device 30 swings around the steering shaft 113 to drive the body 13 to turn around the steering shaft 113.

[0090] Specifically, the water propulsion device 100 includes a connecting assembly 70, which can be connected to the water carrier 300. The main body 10 includes a steering seat 11 and a body 13. The steering seat 11 is connected to the connecting assembly 70, and the body 13 is rotatably connected to the steering seat 11 via a steering shaft 113. The steering shaft 113 is perpendicular to the transverse connecting shaft 40 and perpendicular to the direction of the propulsion force of the propulsion device 20. The propulsion device 20 is mounted at one end of the body 13, and the operating device 30 is connected to the end of the body 13 away from the propulsion device 20 via the transverse connecting shaft 40. The operating device 30 can rotate relative to the body 13 to a state approximately perpendicular to the steering shaft 113. When the end of the operating device 30 swings around the steering shaft 113, the operating device 30 can drive the body 13 to turn around the steering shaft 113. Furthermore, the main body 10 is also equipped with a battery 80, which provides power to the propulsion device 20.

[0091] Please refer to Figures 1, 3, 5, and 14. In some embodiments, the steering seat 11 and the connecting assembly 70 are detachable. After the steering seat 11 is detached from the connecting assembly 70, the operating device 30 can be folded up to the position where the steering seat 11 is detached from the connecting assembly 70.

[0092] Specifically, the steering seat 11 and the connecting component 70 are detachably connected. After the steering seat 11 is detached from the connecting component 70, the operating device 30 can be folded up to the position where the steering seat 11 was originally connected to the connecting component 70, so that the water propeller 100 can maintain a folded state when not in use, thereby reducing the overall space occupied by the water propeller 100 and making it convenient for users to store and carry.

[0093] Please refer to Figures 1, 3, 5, and 14. In some embodiments, the steering seat 11 is provided with a loading member 55, which is detachably connected to the connecting assembly 70. The locking module 50 includes a second locking unit 52 disposed on the loading member 55 and a first locking unit 51 disposed on the operating device 30. After the loading member 55 is detached from the connecting assembly 70, the operating device 30 drives the first locking unit 51 to approach the loading member 55, and the first locking unit 51 can lock with the second locking unit 52.

[0094] Specifically, in some embodiments, the steering seat 11 is provided with a loading member 55, which is detachably connected to the connecting assembly 70. The locking module 50 includes a second locking unit 52 disposed on the loading member 55 and a first locking unit 51 disposed on the operating device 30. When the loading member 55 is detached from the connecting assembly 70, the operating device 30 can approach the loading member 55 through the first locking unit 51 and lock into contact with the second locking unit 52. The arrangement of the locking module 50 enables the operating device 30 to lock into the loading member 55 in the detached state of the steering seat 11, thereby ensuring the stability of the operating device 30 in the stacked state.

[0095] Referring to Figures 1, 3, 5, and 14, in some embodiments, the locking module 50 further includes a control unit 53 and a third locking unit 58 disposed on the loading member 55. The control unit 53 is coupled to the second locking unit 52 and the third locking unit 58, and the control unit 53 can drive the second locking unit 52 to lock or unlock with the first locking unit 51. The connecting assembly 70 is configured with a fourth locking unit 59, and the control unit 53 can drive the third locking unit 58 to lock or unlock with the fourth locking unit 59.

[0096] Specifically, in some embodiments, the locking module 50 further includes a control unit 53 and a third locking unit 58 disposed on the loading member 55, with the control unit 53 coupled to the second locking unit 52 and the third locking unit 58. A fourth locking unit 59 is disposed on the connecting assembly 70, and the control unit 53 can drive the third locking unit 58 and the fourth locking unit 59 to lock or unlock. By adding the linkage control between the control unit 53 and the third locking unit 58 and the fourth locking unit 59, the loading member 55 can achieve automated locking and unlocking operations in different assembly states.

[0097] Referring to Figures 1, 3, 5, and 14, in some embodiments, the control unit 53 includes a movable member 531. The movable member 531 can switch between a first position and a second position. When the movable member 531 is displaced to the first position and the loading member 55 is connected to the connecting assembly 70, the movable member 531 drives the third locking unit 58 and the fourth locking unit 59 to lock together. When the movable member 531 is displaced to the second position and the loading member 55 is connected to the connecting assembly 70, the movable member 531 can drive the third locking unit 58 and the fourth locking unit 59 to unlock. When the movable member 531 is displaced to the first position and the loading member 55 is detached from the connecting assembly 70 and overlapped with the operating device 30, the movable member 531 can drive the second locking unit 52 to lock with the first locking unit 51. When the movable member 531 is displaced to the first position and the loading member 55 is detached from the connecting assembly 70 and overlapped with the operating device 30, the movable member 531 drives the second locking unit 52 to unlock with the first locking unit 51. Specifically, the movable member 531 can switch between a first position and a second position. When the movable member 531 is displaced to the first position and the loading member 55 is in an assembled state with the connecting assembly 70, the movable member 531 can drive the third locking unit 58 to lock with the fourth locking unit 59; when the movable member 531 is displaced to the second position and the loading member 55 is in an assembled state with the connecting assembly 70, the movable member 531 can drive the third locking unit 58 to overlap, and the movable member 531 can drive the second locking unit 52 to lock with the first locking unit 51; when the movable member 531 is displaced to the second position and the loading member 55 is disassembled from the connecting assembly 70 and overlapped with the operating device 30, the movable member 531 can drive the second locking unit 52 to unlock with the first locking unit 51. Through the switching of the movable member 531 to different positions and its driving of the locking units, a stable assembly is achieved between the connecting assembly 70, the steering seat 11, and the operating device 30.

[0098] Please refer to Figures 3, 6, and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, the locking module 50 locks the operating device 30 to the main body 10, and with the operating device 30 bearing the weight of the main body 10, the center of gravity of the water propeller 100 is located below the operating device 30. Specifically, as shown in Figure 3, with the locking module 50 locking the operating device 30 to the main body 10 and the operating device 30 bearing the weight of the main body 10, the main body 10 and the operating device 30 are in a folded state. Here, "below" refers to the portion below the operating device 30 (viewed from the long axis P of the operating device) when the user lifts the folded water propeller 100. If the center of gravity of the water propeller 100 is located above the operating device 30, it is closer to the user who is lifting the water propeller 100, making it more difficult for the user to lift. In this embodiment, the center of gravity of the water propulsion device 100 is located below the operating device 30, making it very easy for the user to lift.

[0099] Please refer to Figures 3 and 5, as well as Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, the operating device 30 includes a base 333 and a handle 335 extending from the base 333. The base 333 is connected to the main body 10 via a transverse connecting shaft 40. The locking module 50 locks the operating device 30 to the main body 10. The locking module 50 is located on the base 333 away from the transverse connecting shaft 40. The handle 335 is used to form a handle for lifting the water propeller 100.

[0100] The operating device 30 includes a base 333 and a handle 335 extending from the base 333. Specifically, the operating lever 33 of the operating device 30 may include a base 333 and a handle 335 extending from the base 333. The base 333 is a component connected to the main body 10. In this disclosure, the base 333 can rotate relative to the main body 10 about a transverse connecting shaft 40 to drive the entire operating device 30 to rotate about the transverse connecting shaft 40. The handle 335 is a component for the user to grip. The handle 335 is directly or indirectly connected to the end of the base 333 away from the main body 10. The handle 335 may be a cylindrical structure for easy gripping. The locking module 50 is located on the base 333 away from the transverse connecting shaft 40 to evenly distribute the load on the operating device 30 in the folded state.

[0101] Please refer to Figures 3 and 5, and Figures 6 and 7, or Figures 8 to 10, or Figures 11 to 13. In some embodiments, a rotating shaft 334 extends from the end of the base 333 away from the transverse connecting shaft 40. A handle 335 is disposed on the rotating shaft 334, and the handle 335 can control the rotation of the rotating shaft 334. The base 333 is provided with a sensor 339 that senses the rotation of the rotating shaft 334. The base 333 is also provided with a circuit board 337 electrically connected to the sensor 339. The circuit board 337 processes the rotation sensing amount of the sensor 339 and generates an electrical signal that can indicate the power of the water propeller 100.

[0102] The grip 335 is directly or indirectly connected to the end of the base 333 furthest from the main body 10. In this embodiment, the grip 335 is indirectly connected to the end of the base 333 furthest from the main body 10 via a rotating shaft 334. The grip 335 can control the rotation of the rotating shaft 334. Correspondingly, the sensor 339 detects the angle of rotation of the grip 335 (i.e., the rotation sensing amount). The circuit board 337 processes the angle of rotation detected by the sensor 339 and outputs a control electrical signal to adjust the power of the water propeller 100. Generally, the larger the angle of rotation, the greater the power of the water propeller 100 controlled by the corresponding control electrical signal; the smaller the angle of rotation, the smaller the power of the water propeller 100 controlled by the corresponding control electrical signal.

[0103] This application also provides a water-based mobile device 1000. The water-based mobile device 1000 includes a water-based thruster 100 and a water-based carrier 300 according to any of the above embodiments, and the main body 10 can be mounted to the water-based carrier 300. The beneficial effects of the water-based mobile device 1000 include at least the beneficial effects of the water-based thruster 100, which will not be elaborated here.

[0104] Referring to Figures 1, 3, 5, and 14, in some embodiments, the main body 10 is detachably mounted to the water carrier 300. With the main body 10 detached from the water carrier 300, the operating device 30 and the main body 10 are foldable. With the operating device 30 and the main body 10 folded together, and the locking module 50 locking the operating device 30 and the main body 10 together, the operating device 30 can function as a handle to suspend the main body 10 laterally.

[0105] In some embodiments, the main body 10 is detachably mounted to the water carrier 300. When the main body 10 is detached from the water carrier 300, the operating device 30 can be folded together with the main body 10. When the operating device 30 is folded together with the main body 10 and the locking module 50 locks the operating device 30 to the main body 10, the operating device 30 can be used as a handle to suspend the main body 10 laterally. In the detached state, the user can easily lift or carry the main body 10 using the folded operating device 30, which not only improves the ease of carrying but also ensures safety during transportation through the reliable locking of the locking module 50.

[0106] Referring to Figures 1, 3, 5, and 14, in some embodiments, with the main body 10 mounted on the water carrier 300, the operating device 30 is extended relative to the main body 10 until its end is located inside the water carrier 300, at which point the operating device 30 is operable. Specifically, when the main body 10 is mounted on the water carrier 300, the operating device 30 can be extended relative to the main body 10, and its end can be located inside the water carrier 300, at which point the operating device 30 is operable by the user. By extending the operating device 30 to the position inside the water carrier 300, precise control of the main body 10 by the user can be achieved, especially when adjusting the direction or position of the water propeller 100, providing a more intuitive and convenient operating experience, thereby improving the practicality and operability of the water propeller 100.

[0107] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure. The above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A water propulsion device, wherein, For connecting a waterborne carrier to propel the waterborne carrier in water, the waterborne propulsion device includes: The main body of the fuselage is equipped with a propulsion device at its end for outputting propulsion force to move the water carrier; The operating device is rotatably connected to the end of the main body away from the propulsion device via a transverse connecting shaft, and can be folded or unfolded with the main body. The operating device is used by the user to operate and control the operation of the water propulsion device. A locking module is disposed in at least one of the main body and the operating device. When the operating device and the main body are folded, the locking module locks the operating device and the main body at a position between the transverse connecting shaft and the propulsion device. The operating device forms a cantilever beam between the transverse connecting shaft and the locking module that can bear the weight of the main body.

2. The water propulsion device according to claim 1, wherein, The operating device includes an operating lever, which is rotatably connected to the main body of the machine body via the transverse connecting shaft. The main body of the machine body includes a front side that faces the water carrier and a rear side that is opposite to the front side. When the operating device and the main body of the machine body are folded, the operating device is folded to the front side of the main body of the machine body, or the operating device is folded to the rear side of the main body of the machine body.

3. The water propulsion device according to claim 1, wherein, When the suspension beam is under the load of the main body of the water propulsion device, the load on the transverse connecting shaft is basically the same as the load on the locking module.

4. The water propulsion device according to claim 1, wherein, The operating device includes an operating lever, and the locking module includes a first locking unit, a second locking unit, and a control unit. The first locking unit is disposed on the operating lever, and the second locking unit and the control unit are both disposed on the main body of the device. The control unit includes a movable member that can switch between a first position and a second position. The movable member is coupled to the second locking unit. When the movable member is in the first position, it can control the second locking unit to lock with the first locking unit. When the movable member is in the second position, it allows the second locking unit to unlock from the first locking unit.

5. The water propulsion device according to claim 4, wherein, The locking module also includes a loading member, which is disposed on the main body of the machine body and protrudes from the main body of the machine body. The loading member has a loading cavity with an opening at one end. The second locking unit and the control unit are both disposed in the loading cavity. The opening allows the first locking unit to enter and exit the loading cavity to lock or unlock with the second locking unit.

6. The water propulsion device according to claim 5, wherein, The operating lever is provided with a receiving groove, and the first locking unit is housed in the receiving groove. When the operating device and the main body are folded, the loading component extends into the receiving groove, and the first locking unit extends into the loading cavity.

7. The water propulsion device according to claim 5, wherein, The loading component includes a first loading component and a second loading component, which cooperate to form the loading cavity.

8. The water propulsion device according to claim 7, wherein, The first loading member or the second loading member is provided with an opening, and the movable member has a portion extending from the opening. The portion of the movable member extending from the opening can receive a driving force to cause the movable member to move to the first position or the second position.

9. The water propulsion device according to claim 8, wherein, The control unit further includes: An elastic element connects the end of the loading cavity and the movable element. The elastic element elastically abuts against the movable element. The movable element is maintained in the first position by the elastic force. The movable element is displaced to the second position by the driving force, and the elastic element is driven to compress.

10. The water propulsion device according to claim 9, wherein, The locking module also includes a positioning element, which can control the movable element to be positioned in the second position.

11. The water propulsion device according to any one of claims 5-10, wherein, The first locking unit includes a hook component, and the second locking unit includes a locking component; When the engaging component and the hook component are engaged, the operating lever is prohibited from moving toward the unfolded state relative to the main body of the machine. When the locking component and the hook component are in a disengaged state, the operating lever is allowed to move toward the unfolded state relative to the main body of the fuselage.

12. The water propulsion device according to claim 11, wherein, The movable member slides linearly within the loading cavity. When the movable member is in the second position, it drives the engaging member to rotate to the open state to release the hook member. When the movable member is in the first position, it allows the engaging member to rotate to the closed state to engage the hook member.

13. The water propulsion device according to claim 12, wherein, The locking member includes two, which are spaced apart and form a channel. Each locking member includes a locking part and a moving part, with the two locking parts facing each other and the two moving parts facing each other. The movable member is located in the second position, with its end extending forward from the channel and pushing the two actuating parts to rotate to the open position. The two actuating parts, being in the open position, drive the two engaging parts to rotate in the opposite direction to the open state. When the movable member is located in the first position, its end disengages from the actuating parts, and the two actuating parts can return to the close position, driving the two engaging parts to rotate to the closed state.

14. The water propulsion device according to claim 13, wherein, The movable member has a wedge-shaped block at its end near the engaging member. The wedge-shaped block has two opposing inclined surfaces, which can abut against the two actuating parts respectively to gradually push the two actuating parts apart.

15. The water propulsion device according to claim 14, wherein, The end of the movable member is also provided with a connecting rod that protrudes from the wedge block and passes through the channel. When the wedge block pushes open the two actuating parts to the point that the engaging part is in an open state, the connecting rod can be positioned and engaged with the first locking unit to keep the engaging part in an open state.

16. The water propulsion device according to claim 13, wherein, The hook component has two first slots with opposite openings. The two engaging parts rotate to close and respectively engage with the two first slots, and the first locking unit locks with the second locking unit.

17. The water propulsion device according to claim 12, wherein, The engaging component is rotatably connected to the loading component via a rotating shaft; The second locking unit further includes a torsion spring, which is sleeved on the rotating shaft and acts on the loading member and the engaging member to drive the engaging member to close; when the movable member is in the first position, the engaging member is in a closed state under the action of the torsion spring.

18. The water propulsion device according to claim 17, wherein, At least one of the locking member and the hook member is provided with a guide surface; When the movable part is in the first position, the hook is folded relative to the main body of the machine and moves towards the engaging part as the operating lever folds. The guide surface can guide the engaging part to rotate to the open state first, and then allow the torsion spring to drive the engaging part to rotate to the engaged state.

19. The water propulsion device according to claim 18, wherein, The guide surface is configured as an inclined surface that is tilted relative to the direction in which the engaging member and the hook member approach each other. The driving force of the engaging member and the hook member approaching and contacting each other forms a component force on the inclined surface that drives the engaging member to open and rotate.

20. The water propulsion device according to claim 18, wherein, The positioning element of the first locking unit includes a positioning post, and the movable element is provided with a positioning hole. When the movable element moves to the second position, the end of the positioning post is inserted into the positioning hole, the movable element is positioned and held in the second position, and the engaging element is held in the open state.

21. The water propulsion device according to claim 20, wherein, A plunger spring is provided between the positioning pin and the operating rod, and the positioning pin can be inserted into the positioning hole along the sliding direction perpendicular to the movable member under the elastic force of the plunger spring.

22. The water propulsion device according to claim 21, wherein, The end of the positioning post is provided with a ball end. When the movable member moves from the second position to the first position, the ball end can be retracted and disengaged from the positioning hole by the action of the movable member.

23. The water propulsion device according to any one of claims 5-9, wherein, The first locking unit includes a socket, and the second locking unit includes a retractable sliding pin; When the end of the sliding pin extends into the socket and is in a plugged-in engagement state, the operating lever is prohibited from moving towards the unfolded state relative to the main body of the machine. When the end of the sliding pin is disengaged from the socket and separated from the socket, the operating lever is allowed to move toward the unfolded state relative to the main body of the fuselage.

24. The water propulsion device according to claim 23, wherein, The movable member can reciprocate within the loading cavity along a first direction, and the sliding pin can reciprocate within the loading cavity along a second direction, the second direction being perpendicular to the first direction; During the process of the second locking unit and the first locking unit switching from the unlocked state to the locked state, the sliding pin first moves in the positive direction of the second direction, and then moves in the reverse direction of the second direction; During the process of the second locking unit and the first locking unit switching from the locked state to the unlocked state, the sliding pin first moves in the forward direction of the second direction, and then moves in the reverse direction of the second direction.

25. The water propulsion device according to claim 24, wherein, The sliding pins include two, which are spaced apart and form a channel. The insertion holes include two, and the two sliding pins are used to insert into the two insertion holes respectively. The movable member includes a first inclined surface and a second inclined surface, which are inclined relative to the first direction and in opposite directions. The sliding pin includes a first mating surface and a second mating surface, which are inclined relative to the second direction and in opposite directions. When the movable member moves in the opposite direction along the first direction to enter the channel, the movable member and the sliding pin achieve transmission through the engagement of the first inclined surface and the second inclined surface with the first mating surface and the second mating surface, respectively.

26. The water propulsion device according to claim 24, wherein, The loading cavity includes a first cavity and a second cavity that are connected, the second cavity surrounding the first cavity, the movable member being housed in the first cavity and capable of reciprocating within the first cavity in a first direction; The second locking unit further includes: A stop element is sleeved on the sliding pin; and A reset member is disposed in the second cavity and sleeved on the sliding pin. The two ends of the reset member are respectively connected to the inner wall of the second cavity and the stop member. The reset member is used to provide the sliding pin with a force to move in the second direction through the stop member.

27. The water propulsion device according to claim 26, wherein, The control unit further includes an elastic element that connects the inner wall of the loading cavity and the movable element; During the process of the second locking unit and the first locking unit switching from the unlocked state to the locked state, the movable member is moved from the first position to the second position by an external force. The elastic restoring force of the reset member drives the sliding pin to retract into the first cavity. When the movable member is held in the second position, the sliding pin is aligned with the insertion hole, and the external force on the movable member is eliminated, the elastic member drives the movable member to move back from the second position to the first position. The movable member pushes the sliding pin to insert into the insertion hole, and the reset member is elastically compressed by the component force of the elastic member.

28. The water propulsion device according to any one of claims 5-9, wherein, The first locking unit includes a first magnetic element, and the second locking unit includes a second magnetic element; When the second magnetic component and the first magnetic component are in an attracted state, the operating lever is prohibited from moving toward the unfolded state relative to the main body of the machine. When the second magnetic component and the first magnetic component are in a non-attractive state, the operating lever is allowed to move toward the unfolded state relative to the main body of the fuselage.

29. The water propulsion device according to claim 28, wherein, The movable element can reciprocate within the loading cavity along a first direction; During the process of the second locking unit and the first locking unit switching from the unlocked state to the locked state, the movable member remains in the first position, and the operating lever and the loading member are close to each other; During the process of the second locking unit and the first locking unit switching from the locked state to the unlocked state, the movable member first moves from the first position to the second position along the first direction, and then moves from the second position to the first position in the opposite direction.

30. The water propulsion device according to claim 29, wherein, The first magnetic component includes an electromagnet; the first locking unit further includes a switch; the movable component includes a movable part and a trigger part disposed at one end of the movable part near the operating lever; when the movable component is in the first position, the trigger part abuts against the switch and controls the first magnetic component to be energized, so that an attractive force is generated between the first magnetic component and the second magnetic component; when the movable component is in the second position, the trigger part separates from the switch and controls the first magnetic component to be de-energized, so that the attractive force between the first magnetic component and the second magnetic component is released; or, The second magnetic component includes an electromagnet; the first locking unit further includes a trigger part, and the second locking unit further includes a switch part, the switch part being disposed at one end of the movable part of the movable component near the operating lever; when the movable component is in the first position, the trigger part abuts against the switch part and controls the energization of the second magnetic component, so that an attractive force is generated between the first magnetic component and the second magnetic component; when the movable component is in the second position, the trigger part separates from the switch part and controls the energization of the second magnetic component, so that the attractive force between the first magnetic component and the second magnetic component is released.

31. The water propulsion device according to claim 29, wherein, The first magnetic element includes at least two, and the at least two first magnetic elements are spaced apart and surround each other to form a first channel. The second magnetic element includes at least two, and the at least two second magnetic elements are spaced apart and surround each other to form a second channel. The at least two second magnetic elements and the at least two first magnetic elements are respectively arranged opposite to each other in the first direction. The movable element can move in the opposite or forward direction of the first direction to enter and exit the second channel and the first channel.

32. The water propulsion device according to claim 1, wherein, The water propulsion device includes a connecting assembly that can connect to the water carrier. The main body includes a steering seat and a body. The steering seat is connected to the connecting assembly. The body is disposed on a steering shaft rotatably connected to the steering seat. The steering shaft is perpendicular to the transverse connecting shaft and perpendicular to the propulsion direction of the propulsion device. The propulsion device is connected to one end of the body. The operating device is connected to the end of the body away from the propulsion device via the transverse connecting shaft. The operating device rotates relative to the body to a state approximately perpendicular to the steering shaft. The end of the operating device swings around the steering shaft to drive the body to turn around the steering shaft.

33. The water propulsion device according to claim 32, wherein, The steering seat is detachable from the connecting assembly. After the steering seat is detached from the connecting assembly, the operating device can be folded up to the position where the steering seat is detached from the connecting assembly.

34. The water propulsion device according to claim 33, wherein, The steering seat is provided with a loading component, which is detachably connected to the connecting assembly. The locking module includes a second locking unit disposed on the loading component and a first locking unit disposed on the operating device. After the loading component is detached from the connecting assembly, the operating device drives the first locking unit to approach the loading component, and the first locking unit can lock with the second locking unit.

35. The water propulsion device according to claim 34, wherein, The locking module further includes a control unit and a third locking unit disposed on the loading component. The control unit is coupled to the second locking unit and the third locking unit. The control unit can drive the second locking unit to lock or unlock with the first locking unit. The connection component is configured with a fourth locking unit, and the control unit can drive the third locking unit to lock or unlock with the fourth locking unit.

36. The water propulsion device according to claim 35, wherein, The control unit includes a movable member that can switch between a first position and a second position. When the movable member is moved to the first position and the loading member is connected to the connecting assembly, the movable member drives the third locking unit to lock with the fourth locking unit. When the movable member is moved to the second position and the loading member is connected to the connecting component, the movable member can drive the third locking unit and the fourth locking unit to unlock. The movable member is displaced to the first position, and the loading member is disassembled from the connecting assembly and overlapped with the operating device. The movable member can drive the second locking unit to lock with the first locking unit. The movable member is moved to the first position, and the loading member is disassembled from the connecting assembly and overlapped with the operating device. The movable member can drive the second locking unit to unlock from the first locking unit.

37. The water propulsion device according to claim 1, wherein, The locking module locks the operating device to the main body of the fuselage, and when the operating device is supporting the weight of the main body of the fuselage, the center of gravity of the water propulsion device is located below the operating device.

38. The water propulsion device according to claim 37, wherein, The operating device includes a base and a handle extending from the base. The base is connected to the main body of the fuselage via the transverse connecting shaft. The locking module locks the operating device to the main body of the fuselage. The locking module is located on the base away from the transverse connecting shaft. The handle is used to form a handle for lifting the water propulsion device.

39. The water propulsion device according to claim 38, wherein, A rotating shaft extends from one end of the base away from the transverse connecting shaft. The handle is disposed on the rotating shaft and can control the rotation of the rotating shaft. The base is provided with a sensor that senses the rotation of the rotating shaft. The base is also provided with a circuit board that is electrically connected to the sensor. The circuit board processes the rotation sensing amount of the sensor and generates an electrical signal that can indicate the power of the water propeller.

40. A water-based mobile device, wherein, Includes the water propulsion device and water carrier as described in any one of claims 1-39, wherein the main body of the fuselage can be installed on the water carrier.

41. The water-based mobile device according to claim 40, wherein, The main body of the fuselage is detachably installed on the water carrier; With the main body of the fuselage detached from the water carrier, the operating device and the main body of the fuselage are foldable; With the operating device folded and the main body of the machine body folded, and the locking module locking the operating device and the main body of the machine body, the operating device can be used as a handle to suspend the main body of the machine body laterally.

42. The water-based mobile device according to claim 40, wherein, With the main body of the fuselage installed on the water carrier, the operating device is extended relative to the main body of the fuselage to a position where its end is located within the water carrier, and the operating device can be controlled.

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