Marine electric propeller

Abstract

The invention provides a marine electric propeller, and relates to the technical field of propellers, the marine electric propeller comprises a propeller main body, a control handle and a mounting rack, the mounting rack comprises a clamping support, a movable support and a fixed support, the fixed support is connected to the propeller main body, the clamping support is provided with a horizontally arranged first shaft rod, and the movable support is provided with a second shaft rod; one end of the movable support is rotationally connected to the first shaft rod, the fixed support is provided with a second shaft rod which is vertically arranged, and the other end of the movable support is rotationally connected to the second shaft rod; a first locking assembly is arranged between the movable support and the clamping support. A handle base is arranged on the propeller body, the control handle is rotationally connected to the handle base, and a second locking assembly is arranged between the control handle and the handle base. Compared with the related technology, the marine electric propeller effectively solves a series of technical problems that in the related technology, a handle is inconvenient to fix, mount and dismount, adjustment is not flexible, and the propeller cannot be rapidly separated from the water surface.

Description

Technical Field

[0001] This invention relates to the field of propulsion technology, and more specifically, to a marine electric propulsion system. Background Technology

[0002] In the field of marine propulsion equipment, marine electric propulsion systems, as core power components, are directly affected by their structural design in terms of ease of operation, navigation efficiency, and maintenance feasibility. Currently, most marine electric propulsion systems on the market suffer from a design flaw: fixed control handles. This rigid structure cannot accommodate differences in operator height, sitting posture, or the diverse cockpit layouts of different vessels. This leads to frequent problems such as discomfort during operation, limited operating range, and decreased control precision. Especially in small vessels or confined installation environments, operators often have to contort their bodies to reach the handles, significantly increasing operator fatigue and safety hazards. Furthermore, when the propulsion system requires routine maintenance, component replacement, or battery charging, its connection to the hull is typically a complex and non-removable fixing method. Disassembly often involves loosening multiple fasteners, using specialized tools, and requiring multiple people to work together, resulting in lengthy and cumbersome processes. This not only significantly increases maintenance costs but also reduces the daily availability of the equipment, making it difficult for users to respond quickly in emergencies. More notably, the connection between the propeller and the hull lacks dynamic adjustment capabilities. It cannot flexibly adjust its height and angle according to actual navigation conditions such as changes in hull draft, different hull structures, or aquatic environments. This makes the propeller prone to bottoming out in shallow waters and susceptible to reduced propulsion efficiency in deep waters due to excessive immersion, severely limiting the equipment's adaptability and operational stability. Furthermore, when the propeller is not in operation, such as during routine navigation, transport, or anchoring, the fixed propeller remains continuously exposed to the water flow, generating additional underwater drag. This not only reduces the vessel's speed and fuel economy but also increases the risk of collisions with underwater obstacles, further threatening equipment safety and navigation reliability. It also creates significant inconvenience for routine cleaning and inspection. Summary of the Invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems.

[0004] This invention provides a marine electric propulsion device, comprising: a propulsion body, a control handle, and a mounting frame. The mounting frame includes a clamping bracket, a movable bracket, and a fixed bracket. The clamping bracket is detachably connected to the hull, and the fixed bracket is connected to the propulsion body. The clamping bracket has a horizontally arranged first shaft. One end of the movable bracket is rotatably connected to the first shaft. The fixed bracket has a vertically arranged second shaft, and the other end of the movable bracket is rotatably connected to the second shaft. A first locking assembly is provided between the movable bracket and the clamping bracket. The first locking assembly is used to lock the movable bracket in a set position after it rotates relative to the clamping bracket to a set angle, thereby restricting the rotation of the movable bracket relative to the clamping bracket. A handle base is provided on the propulsion body, and the control handle is rotatably connected to the handle base. A second locking assembly is provided between the control handle and the handle base. The second locking assembly is used to lock the control handle in a set position after it rotates relative to the handle base to a set angle, thereby restricting the rotation of the control handle relative to the handle base.

[0005] Optionally, the clamping bracket includes a clamping member, two oppositely arranged baffles, and a first shaft connecting the two baffles. The clamping member is respectively provided on the two baffles, and the two clamping members and the corresponding baffles are used to clamp the hull; the movable bracket is located between the two baffles.

[0006] Optionally, the baffle includes a main plate portion and an inverted L-shaped plate portion. The L-shaped plate portion includes a first horizontal portion and a first vertical portion connected to each other. The first horizontal portion is connected to the side of the main plate portion away from the propeller body. The clamping member is connected to the first vertical portion, and the clamping member and the main plate portion are used to clamp the hull.

[0007] Optionally, the clamping member includes a screw, a handle, and a pressure block. The screw is threaded to the first vertical part, the pressure block is connected to the end of the screw near the main board part, and the handle is connected to the end of the screw away from the main board part.

[0008] Optionally, the movable support includes a support body, one end of which is provided with a horizontally arranged first sleeve, and the other end of which is provided with a vertically arranged second sleeve. The first sleeve is fitted and rotatably connected to the first shaft, and the second sleeve is fitted and rotatably connected to the second shaft.

[0009] Optionally, the first locking assembly includes a round rod, a first spring, and a locking rod. The bracket body has a first rectangular groove and a second rectangular groove spaced apart, wherein the second rectangular groove is located below the first rectangular groove. A through hole is formed between the first rectangular groove and the second rectangular groove, connecting the two. The round rod passes through the first rectangular groove, the through hole, and extends into the second rectangular groove in a vertical direction. The first spring is located in the first rectangular groove and sleeved on the round rod. The locking rod is located in the second rectangular groove and connected to the round rod. The baffle has multiple slots facing the inside of the bracket body. The locking rod is used to engage with any of the slots to restrict the rotation of the movable bracket relative to the clamping bracket.

[0010] Optionally, the fixed bracket includes a C-shaped frame and a second shaft. The C-shaped frame includes a second vertical part and two second horizontal parts connected to each other. The second vertical part is connected to the propeller body, and the second shaft is connected between the two second horizontal parts.

[0011] Optionally, a first connecting part is provided on the second vertical part, and a second connecting part is provided on the propeller body. Multiple second connecting parts are provided along the vertical direction. The first connecting part is used to connect with any of the second connecting parts to fix the fixed bracket relative to the propeller body.

[0012] Optionally, the second locking assembly includes a connecting rod, a second spring, a locking block, and a knob. The handle base has an ear plate at its end away from the thruster body. The connecting rod passes horizontally through the ear plate. The operating handle has a circular ring structure at its end near the handle base. The locking block is disposed within the circular ring structure and sleeved on the connecting rod. The knob is threaded to the end of the connecting rod. The outer periphery of the locking block has a groove, and the inner wall of the circular ring structure has a protrusion that is embedded in the groove. The ear plate faces the... The locking block has multiple first protruding teeth on its end face along the circumferential direction, and multiple second protruding teeth on its end face facing the ear plate along the circumferential direction. The knob is used to push the locking block to move closer to the ear plate so that the multiple second protruding teeth engage with the multiple first protruding teeth to limit the rotation of the control handle relative to the handle base. The second spring is sleeved on the connecting rod and is used to push the locking block to move away from the ear plate under the action of elastic force so that the multiple second protruding teeth separate from the multiple first protruding teeth.

[0013] Optionally, the thruster body includes a power supply housing and a power unit, the power unit being disposed below the power supply housing, and the power unit being provided with a fin structure.

[0014] The present invention provides a marine electric propulsion device, which, compared with related technologies, has, but is not limited to, the following beneficial effects: The marine electric propeller of this invention introduces a rotatable control handle, supplemented by a second locking component, allowing the angle of the control handle to be flexibly adjusted and locked according to the operator's habits or the space of the hull. This contrasts sharply with the fixed handle design in related technologies, significantly improving operational comfort and ergonomics. Furthermore, the mounting bracket design of this invention, including a clever combination of clamping brackets, movable brackets, and fixed brackets, and the horizontal and vertical rotational freedom provided by the first and second shafts, enables multi-dimensional position and angle adjustments to the propeller body. For example, the user can precisely adjust the position of the propeller propeller according to the hull structure or actual draft. This flexibility is not available in existing fixed mounting structures, greatly expanding the propeller's applicability. Further, the first and second locking components provide quick and convenient locking and unlocking functions. This allows the user to quickly fix the propeller or control handle in the set position after adjusting its angle, without relying on tools for bolt tightening as in related technologies. This rapid locking mechanism not only improves operational efficiency but also ensures the stability of the propeller during operation. More importantly, the detachable connection of the clamping bracket, combined with the rotation function of the movable bracket, allows users to easily remove the propeller from the hull for maintenance or charging, or to lift the propeller body out of the water when not in use. For example, when users need to pass through shallow water, the propeller can be quickly lifted to avoid bottoming out and reduce drag. This significantly improves ease of use and safety compared to related technologies where propellers are difficult to remove or lift out of the water quickly. In summary, the marine electric propeller of this invention, through its innovative mounting bracket structure and double locking component design, effectively solves a series of technical problems in related technologies, such as handle fixing, inconvenient installation and removal, inflexible adjustment, and inability to quickly detach from the water, providing a marine electric propeller solution that is more convenient to operate, more adaptable, and easier to maintain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a marine electric propulsion system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the thruster body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the control handle according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the mounting bracket according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the clamping bracket according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the movable bracket and the first locking assembly according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the fixed bracket according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the handle base according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the second locking component according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the locking block according to an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Thruster body; 11. Power supply housing; 12. Power unit; 13. Fin structure; 2. Control handle; 21. Ring structure; 211. Protrusion; 3. Clamping bracket; 31. Clamping element; 311. Screw; 312. Handle; 313. Pressure block; 32. Baffle; 321. Main board; 322. L-shaped plate; 323. Slot; 33. First shaft; 4. Movable bracket; 41. Bracket body; 411. First rectangular slot; 412. Second rectangular groove; 42. First sleeve; 43. Second sleeve; 5. Fixed bracket; 51. C-shaped frame; 52. Second shaft; 6. First locking assembly; 61. Round rod; 62. First spring; 63. Snap-fit ​​rod; 7. Handle base; 71. Ear plate; 711. First tooth; 8. Second locking assembly; 81. Connecting rod; 82. Second spring; 83. Locking block; 831. Groove; 832. Second tooth; 84. Knob. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] In the description of this invention, the orientations or positional relationships indicated by terms such as "up," "down," "left," "right," "top," "bottom," "front," "back," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this invention. They are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0021] Furthermore, in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, with the positive direction of the Z-axis indicating up and the negative direction of the Z-axis indicating down.

[0022] It should also be noted that the aforementioned Z-axis designation is only for the purpose of facilitating and simplifying the description of the present invention, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0023] like Figures 1 to 4As shown in the figure, the marine electric propulsion device of this invention includes: a propulsion body 1, a control handle 2, and a mounting frame. The mounting frame includes a clamping bracket 3, a movable bracket 4, and a fixed bracket 5. The clamping bracket 3 is detachably connected to the hull, and the fixed bracket 5 is connected to the propulsion body 1. The clamping bracket 3 has a horizontally arranged first shaft 33. One end of the movable bracket 4 is rotatably connected to the first shaft 33. The fixed bracket 5 has a vertically arranged second shaft 52, and the other end of the movable bracket 4 is rotatably connected to the second shaft 52. The movable bracket 4 and the clamping bracket 3 are connected... A first locking component 6 is provided, which is used to lock the movable bracket 4 in a set position after it rotates relative to the clamping bracket 3 to a set angle, so as to restrict the rotation of the movable bracket 4 relative to the clamping bracket 3; a handle base 7 is provided on the pusher body 1, and the control handle 2 is rotatably connected to the handle base 7. A second locking component 8 is provided between the control handle 2 and the handle base 7, which is used to lock the control handle 2 in a set position after it rotates relative to the handle base 7 to a set angle, so as to restrict the rotation of the control handle 2 relative to the handle base 7.

[0024] In this embodiment, in conjunction with the appendix Figure 1 To be continued Figure 4As shown, the propeller body 1 is the core component of the marine electric propeller, typically containing a motor, propeller, and other power output devices to provide the power required for the ship's navigation. The control handle 2 is used by the operator to control parameters such as the propeller's direction and speed; its connection to the propeller body 1 enables effective control of the propeller. The mounting bracket is a structural component whose main function is to securely fix the propeller body 1 to the hull and allow for positional and angular adjustments of the propeller within a certain range. The clamping bracket 3 is a component of the mounting bracket, designed for direct, detachable connection to the hull, enabling quick installation and removal of the propeller from the hull. The movable bracket 4 is another component of the mounting bracket, connecting the clamping bracket 3 and the fixed bracket 5, and allowing the propeller to rotate and adjust in both horizontal and vertical directions. The fixed bracket 5 is yet another component of the mounting bracket, directly connected to the propeller body 1 and linked to the movable bracket 4. The first shaft 33 is a horizontally arranged shaft on the clamping bracket 3, serving as the fulcrum for the horizontal rotation of the movable bracket 4. The second shaft 52 is a vertically arranged shaft on the fixed bracket 5, serving as the fulcrum for the vertical rotation of the movable bracket 4. The first locking assembly 6 is disposed between the movable bracket 4 and the clamping bracket 3. Its function is to lock the movable bracket 4 at a preset position after it rotates relative to the clamping bracket 3 to a preset angle, preventing unintended rotation of the movable bracket 4. The handle base 7 is a base disposed on the pusher body 1, used to connect the control handle 2. The second locking assembly 8 is disposed between the control handle 2 and the handle base 7. Its function is to lock the control handle 2 at a preset position after it rotates relative to the handle base 7 to a preset angle, preventing unintended rotation of the control handle 2.

[0025] Specifically, the marine electric propeller of this embodiment introduces a rotatable control handle 2, supplemented by a second locking component 8, allowing the angle of the control handle 2 to be flexibly adjusted and locked according to the operator's habits or the space of the hull. This contrasts with the fixed handle design in related technologies, significantly improving operational comfort and ergonomics. Furthermore, the mounting bracket design of this embodiment, including the ingenious combination of the clamping bracket 3, the movable bracket 4, and the fixed bracket 5, and the horizontal and vertical rotational freedom provided by the first shaft 33 and the second shaft 52, enables the propeller body 1 to achieve multi-dimensional position and angle adjustments. For example, the user can precisely adjust the position of the propeller propeller according to the hull structure or the actual draft. This flexibility is not available in existing fixed mounting structures, greatly expanding the applicability of the propeller. Further, the first locking component 6 and the second locking component 8 provide quick and convenient locking and unlocking functions. This allows the user to quickly fix the propeller or control handle in the set position after adjusting the angle, without relying on tools for bolt tightening as in related technologies. This quick-locking mechanism not only improves operational efficiency but also ensures the stability of the propeller during operation. More importantly, the detachable connection of the clamping bracket 3, combined with the rotation function of the movable bracket 4, allows users to easily remove the propeller from the hull for maintenance or charging, or to lift the propeller of the propeller body 1 out of the water when not in use. For example, when users need to pass through shallow water, the propeller can be quickly lifted to avoid bottoming out and reduce drag. Compared to related technologies where propellers are difficult to quickly disassemble or lift out of the water, this significantly improves ease of use and safety.

[0026] In summary, the marine electric propulsion system of this embodiment effectively solves a series of technical problems in related technologies, such as handle fixing, inconvenient installation and disassembly, inflexible adjustment, and inability to quickly leave the water surface, through its innovative mounting frame structure and dual locking component design. It provides a marine electric propulsion system that is more convenient to operate, more adaptable, and easier to maintain.

[0027] Optionally, the clamping bracket 3 includes a clamping member 31, two oppositely arranged baffles 32, and a first shaft 33 connected between the two baffles 32. The clamping member 31 is respectively provided on the two baffles 32, and the two clamping members 31 and the corresponding baffles 32 are used to clamp the hull; the movable bracket 4 is located between the two baffles 32.

[0028] In this embodiment, in conjunction with the appendix Figure 5As shown, clamping element 31 is a component used to fix and hold the hull. Its implementation can be varied; for example, a screw-type clamping mechanism can be used, where rotating the screw moves the pressure block to clamp the hull; a lever-type clamping mechanism can be used, applying pressure through the lever principle; or a spring-loaded clamping mechanism can be used, utilizing the elastic force of the spring for clamping. These clamping elements 31 typically need to possess sufficient strength and corrosion resistance to adapt to marine environments. The baffle 32 is an important component of the clamping bracket 3, its main function being to provide a structural support surface and, together with the clamping element 31, form the clamping area for the hull. The baffle 32 can be designed in various shapes and structures; for example, it can be a flat plate structure or a structure with reinforcing ribs or a specific contour to adapt to different hull edge shapes. The material of the baffle 32 is typically a high-strength, corrosion-resistant metal or composite material. The first shaft 33 is a transverse member connecting the two baffles 32 and also serves as the pivot for the rotatable connection of the movable bracket 4. The first shaft 33 ensures the structural integrity and relative positional stability between the two baffles 32. It can be a solid or hollow cylindrical rod, securely connected between the two baffles 32 by welding, bolting, or other fixing methods. The two clamping members 31 and their corresponding baffles 32 are used to clamp the hull; this structure describes the core function and working principle of the clamping bracket 3. The clamping members 31 and the baffles 32 together form an adjustable clamping opening. By adjusting the distance between the clamping members 31 and the baffles 32, it can accommodate hull edges of different thicknesses and securely clamp them. The movable bracket 4 is located between the two baffles 32. This positional relationship ensures the stability and structural compactness of the movable bracket 4 during rotation. The movable bracket 4 is limited by the two baffles 32, effectively preventing lateral displacement or unnecessary swaying during rotation, thereby improving the stability and reliability of the entire mounting bracket.

[0029] Optionally, the baffle 32 includes a main plate portion 321 and an inverted L-shaped plate portion 322. The L-shaped plate portion 322 includes a first horizontal portion and a first vertical portion connected together. The first horizontal portion is connected to the side of the main plate portion 321 away from the propeller body 1. The clamping member 31 is connected to the first vertical portion, and the clamping member 31 and the main plate portion 321 are used to clamp the hull.

[0030] In this embodiment, in conjunction with the appendix Figure 5As shown, the main board portion 321 is the main structural part of the baffle 32, serving as a basic support and load-bearing surface and a connecting base for other components. The main board portion 321 can be integrally molded from high-strength engineering plastic to achieve lightweight and corrosion resistance, while internal reinforcing ribs enhance its rigidity. Alternatively, the main board portion 321 can be made of metal through stamping, bending, or welding processes to provide higher strength and durability, suitable for scenarios subject to greater clamping forces. The inverted L-shaped plate portion 322 is a structure with a specific geometry designed to provide additional structural support and functional areas on top of the main board portion 321, particularly for connecting the clamping element 31, and potentially forming a more stable clamping structure. The inverted L-shaped plate portion 322 can be integrally molded with the main board portion 321, for example, through injection molding or casting processes, ensuring the integrity and strength of the structural connection. Alternatively, the inverted L-shaped plate portion 322 can also be a separate component, securely fixed to the main plate portion 321 by welding, bolting, or riveting. This method facilitates the combination of different materials or modular production. The first horizontal portion is part of the inverted L-shaped plate portion 322, its main extension direction is parallel to the horizontal plane, and it is connected to the side of the main plate portion 321 away from the propeller body 1. The main function of this part is to provide a horizontal extension, thereby providing space for the installation of the clamping member 31, and potentially increasing the stability of the clamping bracket 3 in contact with the hull. The first horizontal portion can be designed as a rectangular plate structure with a certain width and thickness, and its edges can be chamfered to avoid damage to the hull surface. Alternatively, the first horizontal portion can also be designed as a structure with reinforcing ribs to improve its bending and torsional resistance while maintaining lightweight, ensuring that it is not easily deformed during clamping. The first vertical portion is another part of the inverted L-shaped plate portion 322, its main extension direction is perpendicular to the horizontal plane, and it extends downward from the first horizontal portion. This section is the direct connection point of the clamping member 31, and its design is crucial for the secure installation of the clamping member 31 and the effective transmission of clamping force. The first vertical section can be designed as a plate-like structure with sufficient thickness, pre-drilled threaded holes or through holes to facilitate threaded or through-hole connections of the clamping member 31. Alternatively, the first vertical section can also be designed as a structure with reinforcing ribs or bosses to enhance its local strength and ensure that this section will not deform or be damaged when pressure is applied by the clamping member 31.

[0031] Optionally, the clamping member 31 includes a screw 311, a handle 312, and a pressure block 313. The screw 311 is threaded to the first vertical part, the pressure block 313 is connected to the end of the screw 311 near the main board part 321, and the handle 312 is connected to the end of the screw 311 away from the main board part 321.

[0032] In this embodiment, in conjunction with the appendix Figure 5 As shown, the screw 311 is a rod-shaped part with a helical thread, which functions to provide clamping force or adjust the clamping position by rotating to achieve axial movement. The screw 311 can be in the form of an externally threaded rod that mates with an internally threaded hole, or it can be a rod with trapezoidal or rectangular threads to provide greater transmission efficiency or self-locking capability. The handle 312 is a component for manual operation, which provides a lever arm to facilitate the user's rotation of the screw 311, thereby adjusting the clamping force or position of the clamping element 31. The handle 312 can be designed as a T-handle, a butterfly handle, a ball handle, or a lever handle to facilitate the user's grip and application of force. The pressure block 313 is a block-shaped component for applying pressure, which functions to evenly transmit the axial force of the screw 311 to the clamped hull surface, increase the contact area, prevent damage to the hull, and improve clamping stability. The pressure block 313 can be a flat metal block, a block with rubber or plastic padding, or a block with a specific shape to fit the curved surface of the hull.

[0033] Specifically, the screw 311 is threadedly connected to the first vertical section, allowing it to move axially within the section through rotation, thus providing precise clamping or releasing operations. The pressure block 313 is connected to the end of the screw 311 closest to the main plate 321, ensuring that the rotation of the screw 311 directly drives the pressure block 313 towards the main plate 321, effectively clamping the hull. The handle 312 is connected to the end of the screw 311 furthest from the main plate 321, facilitating external operation by the user. This design drives the screw 311 to perform threaded movement within the first vertical section through the rotation of the handle 312. Since the pressure block 313 is connected to the screw 311, the axial movement of the screw 311 causes the pressure block 313 to move closer to or away from the main plate 321. When the pressure block 313 moves closer to the main plate 321, the hull is securely clamped between the pressure block 313 and the main plate 321. This threaded connection structure allows for fine adjustment of the clamping distance and clamping force, thus adapting to hulls of different thicknesses and providing a stable and reliable clamping effect.

[0034] Optionally, the movable support 4 includes a support body 41, one end of which is provided with a horizontally arranged first sleeve 42, and the other end of which is provided with a vertically arranged second sleeve 43. The first sleeve 42 is fitted and rotatably connected to the first shaft 33, and the second sleeve 43 is fitted and rotatably connected to the second shaft 52.

[0035] In this embodiment, in conjunction with the appendix Figure 6As shown, the support body 41 is the core structure of the movable support 4. Its main function is to support and connect other components and serve as the skeleton of the entire movable support 4. The support body 41 can be made of high-strength, corrosion-resistant materials, such as aluminum alloy, stainless steel, or engineering plastics, to adapt to the marine environment and withstand the loads during propeller operation. Its structural form can be varied, such as a plate-like or box-shaped structure, depending on the required strength, rigidity, and connection method with the sleeve. The horizontally arranged first sleeve 42 is a tubular or annular structure with its axis parallel to the horizontal plane. It is used to cooperate with the horizontally arranged first shaft 33 to realize the rotation of the movable support 4 in the horizontal direction. The first sleeve 42 can be integrally formed with the support body 41, for example, by casting or machining to form an inner hole, the inner wall of which is precision machined to ensure the fitting accuracy with the first shaft 33; or, the first sleeve 42 can also be an independent component, such as a bearing seat or bushing, fixed to one end of the support body 41 by welding, bolting, etc., and a sliding bearing or rolling bearing can be embedded inside to reduce friction. The vertically arranged second sleeve 43 is a tubular or annular structure with its axis parallel to the vertical plane. It is used to mate with the vertically arranged second shaft 52, enabling the movable support 4 to rotate in the vertical direction. Similar to the first sleeve 42, the second sleeve 43 can also be integrally formed with the support body 41 or installed as a separate component. Its inner hole also needs to be precision machined to provide a good fit with the second shaft 52, and bearings can be installed as needed. The first sleeve 42 is fitted and rotatably connected to the first shaft 33, meaning that the first shaft 33 passes through the inner hole of the first sleeve 42, allowing relative rotation between the two. This connection method ensures that the movable support 4 can swing horizontally around the first shaft 33. The second sleeve 43 is fitted and rotatably connected to the second shaft 52, meaning that the second shaft 52 passes through the inner hole of the second sleeve 43, allowing relative rotation between the two. This connection method ensures that the movable support 4 can swing vertically around the second shaft 52.

[0036] Optionally, the first locking assembly 6 includes a round rod 61, a first spring 62, and a locking rod 63. The bracket body 41 is provided with a first rectangular groove 411 and a second rectangular groove 412 spaced apart, wherein the second rectangular groove 412 is located below the first rectangular groove 411. A through hole is provided between the first rectangular groove 411 and the second rectangular groove 412 to connect the two. The round rod 61 passes through the first rectangular groove 411 and the through hole in a vertical direction and extends into the second rectangular groove 412. The first spring 62 is located in the first rectangular groove 411 and sleeved on the round rod 61. The locking rod 63 is located in the second rectangular groove 412 and connected to the round rod 61. The baffle 32 is provided with a plurality of locking slots 323 facing the inner side of the bracket body 41. The locking rod 63 is used to engage with any of the locking slots 323 to restrict the rotation of the movable bracket 4 relative to the clamping bracket 3.

[0037] In this embodiment, in conjunction with the appendix Figure 5 and attached Figure 6As shown, the round rod 61, as the core component of the first locking assembly 6, is typically a long strip with a circular cross-section. Its main function is to act as a transmission and support element, bearing the elastic force of the first spring 62 and connecting with the locking rod 63 to enable the movement of the locking rod 63. It can be implemented as a solid or hollow metal rod, such as a stainless steel rod, an aluminum alloy rod, or a high-strength engineering plastic rod, to ensure sufficient strength and corrosion resistance. The first spring 62 is an elastic element that provides preload or reset force, typically a compression spring, used to enable the locking rod 63 to engage with the locking slot 323. It can be implemented as a helical compression spring, a disc spring, or a torsion spring, and the material can be stainless steel, carbon steel, etc., to adapt to different usage environments and required elastic force. The locking rod 63 is the component that directly mates with the locking slot 323; its shape and size design should match the locking slot 323 to achieve reliable engagement and locking. The locking rod 63 is connected to the round rod 61 and moves under the drive of the round rod 61, thereby achieving engagement or disengagement with the locking slot 323. This can be achieved by using a metal rod or block with a specific cross-sectional shape (such as rectangular, circular, or irregular), for example, by welding, threaded connection, or pin connection to fix it to the round rod 61. The first rectangular slot 411 and the second rectangular slot 412 are guide structures provided on the bracket body 41, used to accommodate and guide the movement of the round rod 61, the first spring 62, and the locking rod 63. They ensure the stable and precise movement of the locking assembly within the bracket body 41. The through hole is a channel connecting the first rectangular slot 411 and the second rectangular slot 412, allowing the round rod 61 to pass through it, thereby connecting the components in the first rectangular slot 411 with the components in the second rectangular slot 412, and achieving overall axial movement of the round rod 61. This can be achieved by forming it on the bracket body 41 through drilling, stamping, or other methods. Multiple slots 323 are groove structures set inside the baffle 32. They are arranged at certain intervals and angles to cooperate with the locking rod 63, thereby realizing the locking of the movable bracket 4 at different set angles. This can be achieved by forming it on the baffle 32 through machining (such as milling or stamping), or by integral molding through casting, forging, or other methods.

[0038] Specifically, when the main body of the thruster 1 needs to rotate vertically, the user can manually rotate it downwards (see attached image). Figure 1 Press the round rod 61 (in the Z-axis direction) to disengage the locking rod 63 from the slot 323, thereby allowing the movable bracket 4 to rotate vertically around the first axis 33. After the movable bracket 4 rotates to the set angle, the user removes the pressure applied to the round rod 61. Under the action of the first spring 62, the locking rod 63 can be driven to move upward and lock into different slots 323, thereby restricting the rotation of the movable bracket 4 relative to the clamping bracket 3.

[0039] Optionally, the fixed bracket 5 includes a C-shaped frame 51 and a second shaft 52. The C-shaped frame 51 includes a second vertical part and two second horizontal parts connected to each other. The second vertical part is connected to the propeller body 1, and the second shaft 52 is connected between the two second horizontal parts.

[0040] In this embodiment, in conjunction with the appendix Figure 7 As shown, the fixed bracket 5 is a key structure connecting the propeller body 1 and the movable bracket 4. Its main function is to provide a stable mounting base for the second shaft 52 and ensure that the second shaft 52 maintains a precise vertical orientation (see attached diagram). Figure 1 The fixed support 5 can be a single casting or assembled from multiple parts. The C-frame 51 is a frame structure with a C-shaped cross-section or integral shape, designed to provide good structural rigidity and openness for easy installation of other components. The C-frame 51 can be achieved by bending sheet metal, welding profiles, or integral molding. The second vertical section is the portion of the C-frame 51 extending vertically, its function being to establish a secure connection with the propeller body 1, thereby transferring the load of the fixed support 5 to the propeller body 1. This vertical section can be a flat plate, a reinforcing rib, or a beam with a specific cross-section. Two second horizontal sections are the portions of the C-frame 51 extending horizontally, typically arranged in parallel and connected to the second vertical section. Their main function is to provide support points at both ends for the second shaft 52, ensuring that the second shaft 52 is accurately positioned and fixed. These horizontal sections can be flat plate structures or structures with reinforcing ribs. The second shaft 52 is a cylindrical or rod-shaped component that serves as the rotation axis of the movable support 4. It needs to have sufficient strength and rigidity to withstand the forces and torques generated when the movable support 4 rotates and to maintain its vertical stability. The second shaft 52 can be in the form of a solid rod, a hollow tube, or a stepped shaft.

[0041] Optionally, a first connecting part is provided on the second vertical part, and a second connecting part is provided on the propeller body 1. Multiple second connecting parts are provided along the vertical direction. The first connecting part is used to connect with any of the second connecting parts to fix the fixed bracket 5 relative to the propeller body 1.

[0042] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 2 and attached Figure 7As shown, the first connecting part is a structural element used to connect the fixed bracket 5 and the propeller body 1. It can be one or a group of holes, slots, protrusions, or buckles, designed to provide a stable connection point. Simultaneously, the propeller body 1 is provided with a second connecting part. This second connecting part is a structural element that cooperates with the first connecting part. It can be a hole, pin, slot, or boss that matches the first connecting part, used to receive or engage the first connecting part. It is worth noting that multiple second connecting parts are provided along the vertical direction. This means that the propeller body 1 does not have only one connection point, but rather a series of selectable connection points distributed along its vertical direction. These connection points can be arranged at equal intervals or non-equal intervals according to actual needs, with each connection point representing a specific vertical installation height. The first connecting part is used to connect with any of the second connecting parts. This description clarifies the selective connection relationship between the first connecting part and multiple second connecting parts. The user or operator can select one of the second connecting parts to connect with the first connecting part according to actual needs. Ultimately, through this connection method, the fixed bracket 5 can be fixed relative to the propeller body 1. This means that once selected and connected, the relative vertical position between the fixed bracket 5 and the thruster body 1 is determined and kept stable, thereby realizing the vertical height adjustment and fixation of the thruster body 1.

[0043] Optionally, the second locking assembly 8 includes a connecting rod 81, a second spring 82, a locking block 83, and a knob 84. The handle base 7 has an ear plate 71 at its end away from the pusher body 1. The connecting rod 81 passes horizontally through the ear plate 71. The control handle 2 has a circular ring structure 21 at its end near the handle base 7. The locking block 83 is disposed within the circular ring structure 21 and sleeved on the connecting rod 81. The knob 84 is threaded to the end of the connecting rod 81. The locking block 83 has a groove 831 on its outer periphery. The inner wall of the circular ring structure 21 has a protrusion 211, which is embedded in the groove 831. The ear plate 82... A plurality of first protruding teeth 711 are provided circumferentially on the end face of the locking block 83, and a plurality of second protruding teeth 832 are provided circumferentially on the end face of the locking block 83 facing the ear plate 71. The knob 84 is used to push the locking block 83 toward the ear plate 71 so that the plurality of second protruding teeth 832 engage with the plurality of first protruding teeth 711 to restrict the rotation of the control handle 2 relative to the handle base 7. The second spring 82 is sleeved on the connecting rod 81, and the second spring 82 is used to push the locking block 83 toward the direction away from the ear plate 71 under the action of elastic force so that the plurality of second protruding teeth 832 separate from the plurality of first protruding teeth 711.

[0044] In this embodiment, in conjunction with the appendix Figure 1 Appendix Figure 3 Appendix Figure 8 Appendix Figure 9 and attached Figure 10 As shown, the connecting rod 81 can be a round rod-shaped component. The second spring 82 is an elastic element whose main function is to provide thrust, allowing the locking block 83 to move away from the ear plate 71 when no external force is applied. The locking block 83 is a block-shaped component with a specific shape, whose core function is to engage or disengage with the protrusions on the ear plate 71, thereby locking or unlocking the control handle 2. The knob 84 is a component that can be manually rotated, and its main function is to limit the movement of the locking block 83.

[0045] Specifically, assuming the control handle 2 is locked relative to the handle base 7, meaning the control handle 2 cannot be flipped relative to the handle base 7, when unlocking is required, the user can manually rotate the knob 84 to move it outward. During the outward movement of the knob 84, the second spring 82, under the action of elastic force, pushes the locking block 83 to move away from the ear plate 71, so that the multiple second protrusions 832 on the locking block 83 separate from the multiple first protrusions 711 on the ear plate 71, thereby allowing the control handle 2 to flip relative to the handle base 7. When it is necessary to restrict the flipping of the control handle 2 relative to the handle base 7 again, the user manually rotates the knob 84 again to move it inward, thereby pushing the locking block 83 to move closer to the ear plate 71, until the multiple second protrusions 832 on the locking block 83 re-engage with the multiple first protrusions 711 on the ear plate 71, thereby restricting the flipping of the control handle 2 relative to the handle base 7.

[0046] Optionally, the thruster body 1 includes a power housing 11 and a power unit 12, the power unit 12 being disposed below the power housing 11, and the power unit 12 being provided with a fin structure 13.

[0047] In this embodiment, in conjunction with the appendix Figure 2As shown, the power housing 11 is an external protective structure that houses the power components and related control circuits required for the marine electric propulsion. Its external shape can be designed to be streamlined to reduce drag during water movement. The power unit 12 is the core component of the marine electric propulsion that generates thrust, typically including an electric motor, reduction gear, and propeller. The power unit 12 is located below the power housing 11; this layout means that the power unit 12 is vertically positioned below the power housing 11. This configuration helps lower the center of gravity of the entire propulsion body 1, thereby improving the propulsion's stability in water. By placing the heavier power unit 12 below, water flow disturbances can be effectively resisted, reducing the propulsion's swaying or tilting during navigation, allowing the propulsion to operate more smoothly. The fin structure 13 is an auxiliary structure installed on the power unit 12, inspired by fish fins, primarily used to improve the propulsion's hydrodynamic performance in water. Its main function is to provide additional lateral stability, reduce the lateral drift or yaw of the thruster in the water, and may assist in steering, thereby improving the thruster's heading control and handling precision.

[0048] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0049] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A marine electric propulsion system, characterized in that, include: The propeller body (1), control handle (2), and mounting bracket are provided. The mounting bracket includes a clamping bracket (3), a movable bracket (4), and a fixed bracket (5). The clamping bracket (3) is detachably connected to the hull. The fixed bracket (5) is connected to the propeller body (1). The clamping bracket (3) has a horizontally arranged first shaft (33). One end of the movable bracket (4) is rotatably connected to the first shaft (33). The fixed bracket (5) has a vertically arranged second shaft (52). The other end of the movable bracket (4) is rotatably connected to the second shaft (52). A first locking assembly (6) is provided between the movable bracket (4) and the clamping bracket (3). The first locking component (6) is used to lock the movable bracket (4) at a set position after it rotates relative to the clamping bracket (3) to a set angle, so as to restrict the rotation of the movable bracket (4) relative to the clamping bracket (3); the pusher body (1) is provided with a handle base (7), the control handle (2) is rotatably connected to the handle base (7), and a second locking component (8) is provided between the control handle (2) and the handle base (7). The second locking component (8) is used to lock the control handle (2) at a set position after it rotates relative to the handle base (7) to a set angle, so as to restrict the rotation of the control handle (2) relative to the handle base (7).

2. The marine electric propulsion system according to claim 1, characterized in that, The clamping bracket (3) includes a clamping member (31), two oppositely arranged baffles (32), and a first shaft (33) connected between the two baffles (32). The clamping member (31) is respectively provided on the two baffles (32), and the two clamping members (31) and the corresponding baffles (32) are used to clamp the hull. The movable bracket (4) is located between the two baffles (32).

3. The marine electric propulsion system according to claim 2, characterized in that, The baffle (32) includes a main plate portion (321) and an inverted L-shaped plate portion (322). The L-shaped plate portion (322) includes a first horizontal portion and a first vertical portion connected together. The first horizontal portion is connected to the side of the main plate portion (321) away from the propeller body (1). The clamping member (31) is connected to the first vertical portion. The clamping member (31) and the main plate portion (321) are used to clamp the hull.

4. The marine electric propulsion system according to claim 3, characterized in that, The clamping member (31) includes a screw (311), a handle (312), and a pressure block (313). The screw (311) is threaded to the first vertical part, the pressure block (313) is connected to the end of the screw (311) near the main board part (321), and the handle (312) is connected to the end of the screw (311) away from the main board part (321).

5. The marine electric propulsion system according to claim 2, characterized in that, The movable support (4) includes a support body (41), one end of which is provided with a horizontally arranged first sleeve (42), and the other end of which is provided with a vertically arranged second sleeve (43). The first sleeve (42) is fitted and rotatably connected to the first shaft (33), and the second sleeve (43) is fitted and rotatably connected to the second shaft (52).

6. The marine electric propulsion system according to claim 5, characterized in that, The first locking assembly (6) includes a round rod (61), a first spring (62), and a snap-fit ​​rod (63). The bracket body (41) is provided with a first rectangular groove (411) and a second rectangular groove (412) spaced apart. The second rectangular groove (412) is located below the first rectangular groove (411). A through hole is provided between the first rectangular groove (411) and the second rectangular groove (412) to connect the two. The round rod (61) passes through the first rectangular groove (411) and the through hole in sequence along the vertical direction. And extends into the second rectangular groove (412), the first spring (62) is located in the first rectangular groove (411) and sleeved on the round rod (61), the snap-fit ​​rod (63) is located in the second rectangular groove (412) and connected to the round rod (61), the baffle (32) has multiple snap-fit ​​slots (323) on the inner side facing the bracket body (41), and the snap-fit ​​rod (63) is used to snap-fit ​​with any of the snap-fit ​​slots (323) to restrict the rotation of the movable bracket (4) relative to the clamping bracket (3).

7. The marine electric propulsion system according to claim 1, characterized in that, The fixed bracket (5) includes a C-shaped frame (51) and a second shaft (52). The C-shaped frame (51) includes a second vertical part and two second horizontal parts connected to each other. The second vertical part is connected to the propeller body (1), and the second shaft (52) is connected between the two second horizontal parts.

8. The marine electric propulsion system according to claim 7, characterized in that, The second vertical part is provided with a first connecting part, and the propeller body (1) is provided with a second connecting part. Multiple second connecting parts are provided along the vertical direction. The first connecting part is used to connect with any of the second connecting parts to fix the fixed bracket (5) relative to the propeller body (1).

9. The marine electric propulsion system according to claim 1, characterized in that, The second locking assembly (8) includes a connecting rod (81), a second spring (82), a locking block (83), and a knob (84). An ear plate (71) is provided at one end of the handle base (7) away from the thruster body (1). The connecting rod (81) passes horizontally through the ear plate (71). A circular ring structure (21) is provided at one end of the control handle (2) near the handle base (7). The locking block (83) is located within the circular ring structure (21) and is sleeved on the connecting rod (81). The knob (84) is threaded to the end of the connecting rod (81). A groove (831) is provided on the outer periphery of the locking block (83). A protrusion (211) is provided on the inner wall of the circular ring structure (21), and the protrusion (211) is embedded in the groove (831). The end face of the ear plate (71) facing the locking block (83) is provided with a plurality of first protrusions (711) in the circumferential direction. The end face of the locking block (83) facing the ear plate (71) is provided with a plurality of second protrusions (832) in the circumferential direction. The knob (84) is used to push the locking block (83) to move toward the ear plate (71) so that the plurality of second protrusions (832) engage with the plurality of first protrusions (711) to restrict the rotation of the control handle (2) relative to the handle base (7). The second spring (82) is sleeved on the connecting rod (81) and is used to push the locking block (83) to move away from the ear plate (71) under the action of elastic force so that the plurality of second protrusions (832) separate from the plurality of first protrusions (711).

10. The marine electric propulsion system according to claim 1, characterized in that, The thruster body (1) includes a power housing (11) and a power unit (12). The power unit (12) is located below the power housing (11) and has a fin structure (13) on it.

Images