Battery mounting structure, body of water propeller, and body of water movable device

Abstract

The utility model discloses a battery mounting structure, outboard engine and water area movable equipment. Battery mounting structure is used for with quick dismounting and locking to battery, and battery mounting structure includes lever subassembly, fixed base and frame, and lever subassembly rotationally connects fixed base, and fixed base fixedly connects on frame, and the input connector is installed on the frame, lever subassembly includes lever, the lock bar fixed relative to lever and the top rod fixed relative to lever, and lever has first operation position and second operation position, and first operation position is configured as lever drives lock bar and locks battery on input connector, and second operation position is configured as lever drives top rod and ejects battery and separates from input connector. Through the process of driving lever to first operation position, lever drives lock bar and locks battery on input connector, and the process of driving lever to second operation position, lever drives top rod and ejects battery and separates from input connector, and simple operation, and the time of installation and dismounting is short and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water equipment technology, and in particular to a battery mounting structure, a water propulsion device, and a water mobile device. Background Technology

[0002] In existing electric outboard motors, the battery system needs to be frequently disassembled for charging, and the method of battery disassembly directly affects the user experience. Traditional battery installation methods, such as slide rail clip designs, require precise alignment with the slide rail grooves. The guide rails are prone to jamming during disassembly due to seawater corrosion. Disassembly also requires manual force, and threaded fastening designs rely on tools, resulting in time-consuming installation and disassembly, thus impacting the user experience. Utility Model Content

[0003] This utility model provides a battery mounting structure, a water propulsion device, and a water-based mobile device to solve at least one of the aforementioned technical problems.

[0004] This utility model provides a battery mounting structure for quick battery removal and locking. The battery mounting structure includes a lever assembly, a fixed base, and a frame. The lever assembly is rotatably connected to the fixed base, the fixed base is fixedly connected to the frame, and an input connector is mounted on the frame. The lever assembly includes a lever, a locking lever fixed relative to the lever, and a push rod fixed relative to the lever. The lever has a first operating position and a second operating position. The first operating position is configured such that the lever drives the locking lever to lock the battery onto the input connector. The second operating position is configured such that the lever drives the push rod to push the battery out of the input connector.

[0005] In the above-mentioned battery mounting structure, the lever has a first operating position and a second operating position. When the lever is moved to the first operating position, the lever can drive the locking lever to lock the battery on the input connector. When the lever is moved to the second operating position, the lever can drive the push rod to push the battery out of the input connector. The operation is simple, and the installation and disassembly are quick and efficient.

[0006] In some embodiments, the lever assembly includes a rotating shaft, the end of the lever is connected to the rotating shaft, the fixed base has a connecting hole, the rotating shaft is rotatably engaged with the connecting hole, and the lever rotates relative to the fixed base through the rotating shaft.

[0007] In some embodiments, one end of the push rod is connected to the rotating shaft, and the other end of the push rod is located below the battery. The push rod is used to abut against the battery at the end located below the battery when the locking rod disengages from the battery, so as to disengage the battery from the input connector.

[0008] In some embodiments, the lever assembly includes an elastic element disposed corresponding to the lever and the fixed base, wherein the lever is inclined relative to the upper surface of the fixed base under the preload of the elastic element.

[0009] In some embodiments, the frame is provided with guide ribs, and the battery has a guide groove on the side facing the frame. The guide ribs cooperate with the guide grooves to allow the battery to move along the extension direction of the guide ribs, so that the locking rod locks the battery onto the input connector.

[0010] In some embodiments, the locking lever has a guide surface on the side facing away from the lever, and the angle between the guide surface and the side of the battery facing the lever is an acute angle. The battery abuts against the guide surface, causing the locking lever to move towards the battery until the locking lever locks the battery.

[0011] In some embodiments, an output connector is provided at the bottom of the battery for connection to the input connector.

[0012] In some embodiments, the rack is further provided with a transmission component that is connected to the input connector.

[0013] A water propulsion device according to an embodiment of the present invention includes a battery and a battery mounting structure as described in any of the above embodiments, wherein the battery is detachably connected to the battery mounting structure.

[0014] In the aforementioned water propulsion device, the lever has a first operating position and a second operating position. When the lever is moved to the first operating position, the lever can drive the locking lever to lock the battery onto the input connector. When the lever is moved to the second operating position, the lever can drive the push rod to push the battery out of the input connector. The operation is simple, and the installation and disassembly are quick and efficient.

[0015] An embodiment of the present invention provides a water-based mobile device, including the water propulsion device described in the above embodiment.

[0016] In the aforementioned water-based mobile equipment, the lever has a first operating position and a second operating position. When the lever is moved to the first operating position, the lever can drive the locking lever to lock the battery onto the input connector. When the lever is moved to the second operating position, the lever can drive the push rod to push the battery out of the input connector. The operation is simple, and the installation and disassembly are quick and efficient.

[0017] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the battery mounting structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the battery mounting structure in the battery mounting state according to an embodiment of this utility model; Figure 3 This is another structural schematic diagram of the battery mounting structure in the battery mounting state according to an embodiment of this utility model; Figure 4 This is a schematic diagram of the battery mounting structure in the battery disassembly state according to an embodiment of this utility model; Figure 5 This is another structural schematic diagram of the battery mounting structure in the battery removal state according to an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the water propulsion device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a water-based mobile device according to an embodiment of the present invention.

[0019] Figure label: 100. Battery mounting structure; 10. Battery; 12. Lever assembly; 14. Mounting base; 16. Frame; 17. Mounting bracket; 18. Mounting bracket; 20. Input connector; 21. Boss mechanism; 22. Lever; 24. Locking lever; 26. Push rod; 28. Slot; 30. Shaft; 32. Connecting hole; 34. Guide surface; 36. Output connector; 38. Transmission assembly; 200. Water propulsion device; S1, first operating position; S2, second operating position. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown 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 utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] Please refer to Figures 1 to 5 This utility model discloses a battery mounting structure 100 for quickly disassembling and locking a battery 10 to the body of a water propulsion device. The water propulsion device can be an outboard motor, and the body is the torso of the outboard motor. The battery mounting structure 100 includes a lever assembly 12, a fixing base 14, and a frame 16. The lever assembly 12 is rotatably connected to the fixing base 14, and the fixing base 14 is fixedly connected to the frame 16. An input connector 20 is mounted on the frame 16. The frame 16 is mounted on the body. The lever assembly 12 includes a lever 22, a locking lever 24 fixed relative to the lever 22, and a push rod 26 fixed relative to the lever 22. The lever 22 has a first operating position S1 and a second operating position S2. The first operating position S1 is configured such that the lever 22 drives the locking lever 24 to lock the battery 10 to the input connector 20. The second operating position S2 is configured such that the lever 22 drives the push rod 26 to push the battery 10 out of the input connector 20.

[0026] A pivot 30 is positioned at the intersection of the lever 22 and the push rod 26, with the lever 22 rotatably connected via a pivot 30 fixing seat 14. A locking rod 24 extends from one side of the lever 22. The lever 22, locking rod 24, and push rod 26 are all arranged parallel to the plane perpendicular to the pivot 30. The orthographic projections of the lever 22, locking rod 24, and push rod 26 onto the vertical plane of the pivot 30 form a certain angle with each other. Rotating the lever 22 around the axis of the pivot 30 will also cause the locking rod 24 and push rod 26 to rotate around the axis of the pivot 30. In the battery mounting structure 100 described above, the lever 22 has a first operating position S1 and a second operating position S2. When the lever 22 is moved to the first operating position S1, the lever 22 can drive the locking lever 24 to lock the battery 10 onto the input connector 20. When the lever 22 is moved to the second operating position S2, the lever 22 can drive the push rod 26 to push the battery 10 out of the input connector 20. The operation is simple, and the installation and disassembly are quick and efficient.

[0027] Specifically, the battery mounting structure 100 has two mounting bases 14, which are symmetrically mounted on the frame 16 and located near both sides of the frame 16. The input connector 20 is positioned between the two mounting bases 14 and below the battery 10. The lever and push rod 26 are rotatably connected between the two mounting bases 14.

[0028] The lever 22 can be U-shaped, and the locking lever 24 can be hook-shaped. There are two locking levers 24, which can be fixed to the two ends of the lever 22 and located on the side of the lever 22 facing the battery 10. There are two push rods 26, one of which is located between one of the fixing seats 14 and one side of the lever 22, and the other push rod 26 is located between the other fixing seat 14 and the other side of the lever 22.

[0029] In one embodiment, when the lever 22 is pushed to the first operating position S1, the lever 22 can drive the locking lever 24 to lock the battery 10 onto the input connector 20. In another embodiment, when the lever 22 is pushed to the second operating position S2, the lever 22 can drive the push rod 26 to push the battery 10 out of the input connector 20. This method is simple to operate, and the installation and removal are quick and efficient.

[0030] Optionally, a slot 28 is provided on the side of the battery 10 facing the lever 22, and one end of the locking lever 24 can be inserted into the slot 28, thereby locking the battery 10 onto the input connector 20. It is understood that in other embodiments, the locking lever 24 can also lock the battery 10 by cooperating with structures such as a retaining ring, a buckle, or a locking block.

[0031] Please combine Figure 1 and Figure 2 In some embodiments, the lever assembly 12 includes a rotating shaft 30, the end of the lever 22 is connected to the rotating shaft 30, the fixed base 14 has a connecting hole 32, the rotating shaft 30 is rotatably engaged with the connecting hole 32, and the lever 22 rotates relative to the fixed base 14 through the rotating shaft 30.

[0032] In this way, the lever 22 can rotate on the fixed base 14.

[0033] Specifically, the connecting holes 32 of the two fixed seats 14 are arranged opposite to each other. One end of the rotating shaft 30 is inserted into one connecting hole 32, and the other end of the rotating shaft 30 is inserted into the other connecting hole 32, with the rotating shaft 30 and the connecting hole 32 in a rotatable engagement. In one embodiment, by pushing the lever 22, the lever 22 rotates relative to the fixed seat 14 via the rotating shaft 30, thereby enabling the lever 22 to rotate on the fixed seat 14.

[0034] Please combine Figure 1In some embodiments, one end of the push rod 26 is connected to the rotating shaft 30, and the other end of the push rod 26 is located below the battery 10. The push rod 26 is used to abut against the battery 10 at the end below the battery 10 when the locking rod 24 is disengaged from the battery 10, so that the battery 10 is disengaged from the input connector 20.

[0035] In this embodiment, "top rod 26 is located below battery 10" means that top rod 26 is located below a portion of the structure of battery 10. As one embodiment, a boss structure 21 is provided on one side of battery 10. An output connector 36 is provided on the side of boss structure 21 facing the bottom of the battery. When the battery is mounted on the frame and the locking rod 24 locks the battery, the output connector 36 engages with the input connector and conducts electricity, allowing battery 10 to output current to the outside via the input connector. In this embodiment, "top rod 26 is located below battery 10 and abuts against the battery" means that one end of top rod 26 abuts against boss structure 21.

[0036] In this way, the boss structure 21 of the battery 10 can be pushed out to a predetermined height by the push rod 26 and then kept pushed out and unlocked, so that the battery 10 can be safely removed.

[0037] Specifically, one end of the push rod 26 is connected to the rotating shaft 30 and is located between a fixed base 14 and one side of the lever 22, while the other end of the push rod 26 is located below the battery 10. A boss structure 21 is provided on the top of the battery 10. The end of the push rod 26 can abut against the bottom surface of the boss structure 21. In one embodiment, when the lever 22 is pushed to disengage the locking lever 24 from the battery 10, the end of the push rod 26 located below the battery 10 abuts against the battery 10. The push rod 26 pushes the boss structure 21 of the battery 10 out to a predetermined height and holds it in a locked position, thereby safely removing the battery 10.

[0038] In some embodiments, the lever assembly 12 includes an elastic element (not shown) that is disposed corresponding to the lever 22 and the fixed seat 14. The lever 22 is inclined relative to the upper surface of the fixed seat 14 under the preload of the elastic element.

[0039] Thus, the lever 22 is tilted relative to the upper surface of the fixed base 14 under the pre-tightening force of the elastic element. This facilitates the installation of the battery 10 and allows the locking lever 24 to lock the battery 10 through the pre-tightening force of the elastic element.

[0040] Specifically, the elastic element may include a torsion spring. In one embodiment, one end of the elastic element may be connected to the fixing base 14, and the other end of the elastic element may be connected to the lever 22. The lever 22 is inclined relative to the upper surface of the fixing base 14 under the preload of the elastic element, which facilitates the installation of the battery 10 on the one hand, and the preload of the elastic element can lock the battery 10 with the locking lever 24 on the other hand.

[0041] In some embodiments, the frame 16 is provided with guide ribs (not shown), and the battery 10 is provided with a guide groove (not shown) on the side facing the frame 16. The guide ribs cooperate with the guide grooves to allow the battery 10 to move along the extension direction of the guide ribs, so that the locking rod 24 locks the battery 10 onto the input connector 20.

[0042] This makes it easier to guide the installation of battery 10.

[0043] Specifically, in one embodiment, the frame 16 is provided with guide ribs, and the battery 10 is provided with a guide groove on the side facing the frame 16. The guide ribs are disposed in the guide grooves. Through the cooperation of the guide ribs and the guide grooves, the battery 10 can move along the extension direction of the guide ribs, which is also the height direction of the frame 16. The battery 10 can contact the locking rod 24. As the battery 10 is installed downward, the locking rod 24 can lock the battery 10 onto the input connector 20.

[0044] Please combine Figure 1 and Figure 2 In some embodiments, a guide surface 34 is formed on the side of the locking lever 24 facing away from the lever 22. The angle formed between the guide surface 34 and the side of the battery 10 facing the lever 22 is an acute angle. The battery 10 abuts against the guide surface 34, causing the locking lever 24 to move towards the battery 10 until the locking lever 24 locks the battery 10.

[0045] This further facilitates the installation of the battery 10.

[0046] Specifically, in one embodiment, a guide surface 34 is formed on the side of the locking lever 24 facing away from the lever 22. The guide surface 34 is inclined, and the angle formed between the guide surface 34 and the side of the battery 10 facing the lever 22 is an acute angle. When the battery 10 is installed, the battery 10 moves downward through the guide rib and guide groove. The battery 10 abuts against the guide surface 34, causing the locking lever 24 to move towards the battery 10. One end of the locking lever 24 can be inserted into the slot 28 until the locking lever 24 locks the battery 10.

[0047] Please combine Figure 3 and Figure 4 In some embodiments, the bottom of the battery 10 is provided with an output connector 36, which is used to connect to the input connector 20.

[0048] Thus, battery 10 can be electrically connected to input connector 20 via output connector 36.

[0049] Specifically, in one embodiment, when installing the battery 10, the lever 22 is tilted relative to the upper surface of the fixed base 14 under the pre-tightening force of the elastic element. The battery 10 moves downward through the guide rib and guide groove. The battery 10 abuts against the guide surface 34, causing the locking lever 24 to move closer to the battery 10. One end of the locking lever 24 can be inserted into the slot 28 until the locking lever 24 locks the battery 10. At this time, the output connector 36 connects to the input connector 20.

[0050] In another embodiment, when removing the battery 10, the lever 22 is manually pushed down, the locking lever 24 is disengaged from the battery 10, and the push lever 26 can push the battery 10 out. At this time, the output connector 36 is disconnected from the input connector 20.

[0051] Please combine Figure 1 In some embodiments, a transmission component 38 is also provided on the rack 16, and the transmission component 38 is connected to the input connector 20. In this embodiment, the transmission component 38 is a cable.

[0052] This facilitates the supply of power to the storage power source and to other devices. In the embodiments of this application, the other devices are motors connected to the frame, which drive the propeller to rotate, thereby enabling the water propulsion device to obtain propulsion.

[0053] Specifically, in one embodiment, the transmission component 38 is mounted on the rack 16 and connected to the input connector 20. The battery 10 can be connected to the input connector 20 via the output connector 36, thereby powering other devices through the transmission component 38.

[0054] Please refer to Figure 6 A water propulsion device 200 according to an embodiment of the present invention includes a battery 10 and a battery mounting structure 100 of any of the above embodiments, wherein the battery 10 is detachably connected to the battery mounting structure 100.

[0055] In the aforementioned water propulsion device 200, the lever 22 has a first operating position S1 and a second operating position S2. When the lever 22 is moved to the first operating position S1, the lever 22 can drive the locking lever 24 to lock the battery 10 onto the input connector 20. When the lever 22 is moved to the second operating position S2, the lever 22 can drive the push rod 26 to push the battery 10 out of the input connector 20. The operation is simple, and the installation and disassembly are quick and efficient.

[0056] Specifically, the water propulsion device 200 is an outboard motor, but it can also be a podded propulsion device or other equipment that can provide power in water. The water propulsion device 200 includes a shaft 210, a power unit 300, and a steering device 400. The power unit 300 is connected to the bottom of the shaft 210, and the steering device 400 is connected to one side of the shaft 210. A frame 16 is fixed to the end of the shaft 210 away from the power unit 300. The power unit 300 includes an underwater housing 310 and a motor located within the underwater housing 310, as well as a propeller 330 connected to the motor shaft. A battery 10 is electrically connected to the motor, supplying power to the motor so that the motor drives the propeller 330 to rotate. The water propulsion device 200 also includes a controller 500 fixed to the frame 16. The controller 500 is electrically connected to the battery 10 and the motor to obtain battery parameters and control the motor's operation. The steering device 400 includes a steering arm 410 fixed to one side of the shaft 210, and the steering arm 410 has a steering shaft hole. The water propulsion device also includes a clamp 600, which comprises a fixed bracket 610 and a rotating bracket 620 rotatably connected to the fixed bracket 610. The fixed bracket 610 is used to fix it to the stern plate, and the rotating bracket 620 is connected to the shaft 210 and is used to drive the shaft 210 to rotate and tilt relative to the fixed bracket 610. The tilting direction is parallel to the vertical plane. In this embodiment, the rotating bracket 620 is provided with a steering shaft 630, which is detachably engaged with the shaft hole of the steering arm 410, so that the shaft 210 can be removed from the clamp 600 and the shaft 210 can be rotated about the axis of the steering shaft 630.

[0057] In this embodiment, the water propulsion unit 200 also includes a rudder 700, which is connected to the side of the shaft 210 where the steering arm 410 is located. Specifically, the rudder 700 is connected to the frame 16. The rudder 700 is electrically connected to the controller 500. The rudder 700 is equipped with an electronic throttle controller, which is electrically connected to the controller 500 and is used to send power commands to the controller 500, which controls the power output of the motor. The rudder 700 is also equipped with a display screen, which is electrically connected to the controller 500. The controller 500 acquires the motor power and the battery 10's charge level and converts them into signals that can be displayed on the display screen.

[0058] A water-based mobile device 1000 according to an embodiment of the present invention includes a water-based thruster 200 as described in the above embodiment.

[0059] In the aforementioned water-based mobile equipment, the lever 22 has a first operating position S1 and a second operating position S2. When the lever 22 is moved to the first operating position S1, the lever 22 can drive the locking lever 24 to lock the battery 10 onto the input connector 20. When the lever 22 is moved to the second operating position S2, the lever 22 can drive the push rod 26 to push the battery 10 out of the input connector 20. The operation is simple, and the installation and disassembly are quick and efficient.

[0060] Specifically, the water-mobile device 1000 includes a water-carrier 1100, and a clamp 600 for the water-propeller 200 connects to the water-carrier 1100. The water-mobile device can be various water-transport vehicles such as commercial ships, passenger ships, yachts, fishing boats, sailboats, and civilian vessels, or it can be equipment capable of moving in water, such as water patrol equipment, water management equipment, and water environment monitoring equipment; this application does not impose any limitations on this. When the water-mobile device is various types of boats, the water-carrier is correspondingly the hull, and the water-propeller 200 can be fixedly installed at one end of the hull.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery mounting structure for quick removal and locking of a battery, characterized in that, The battery mounting structure includes a lever assembly, a mounting base, and a frame. The lever assembly is rotatably connected to the mounting base, the mounting base is fixedly connected to the frame, and an input connector is mounted on the frame. The lever assembly includes a lever, a locking lever fixed relative to the lever, and a push rod fixed relative to the lever. The lever has a first operating position and a second operating position. The first operating position is configured such that the lever drives the locking lever to lock the battery onto the input connector. The second operating position is configured such that the lever drives the push rod to push the battery out of the input connector.

2. The battery mounting structure according to claim 1, characterized in that, The lever assembly includes a rotating shaft, the end of the lever is connected to the rotating shaft, the fixed base has a connecting hole, the rotating shaft is rotatably engaged with the connecting hole, and the lever rotates relative to the fixed base through the rotating shaft.

3. The battery mounting structure according to claim 2, characterized in that, One end of the push rod is connected to the rotating shaft, and the other end of the push rod is located below the battery. The push rod is used to abut against the battery at the end below the battery when the locking rod is disengaged from the battery, so as to disengage the battery from the input connector.

4. The battery mounting structure according to claim 2, characterized in that, The lever assembly includes an elastic element, which is disposed corresponding to the lever and the fixed base. The lever is inclined relative to the upper surface of the fixed base under the preload of the elastic element.

5. The battery mounting structure according to claim 4, characterized in that, The frame is provided with guide ribs, and the battery has a guide groove on the side facing the frame. The battery moves along the extension direction of the guide ribs by cooperating with the guide grooves, so that the locking rod locks the battery on the input connector.

6. The battery mounting structure according to claim 5, characterized in that, The locking lever has a guide surface on the side facing away from the lever. The angle between the guide surface and the side of the battery facing the lever is an acute angle. The battery abuts against the guide surface, causing the locking lever to move towards the battery until the locking lever locks the battery.

7. The battery mounting structure according to claim 1, characterized in that, The bottom of the battery is provided with an output connector, which is used to connect to the input connector.

8. The battery mounting structure according to claim 1, characterized in that, The rack is also equipped with a transmission component, which is connected to the input connector.

9. A water propulsion device, characterized in that, Includes a battery and a battery mounting structure as described in any one of claims 1-8, wherein the battery is detachably connected to the battery mounting structure.

10. A water-based mobile device, characterized in that, Includes the water propulsion device as described in claim 9.

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