Lifting-up device, propeller and water area movable apparatus

Abstract

A lifting-up device (100), a propeller (200), and a water area movable apparatus (1000). The lifting-up device (100) comprises a fixed support (10), a rotary support (20), a power mechanism (30) and a limiting mechanism (40). In a second state, the limiting mechanism (40) is configured to release the action thereof on the power mechanism (30), so as to stop the power mechanism (30) from driving the rotary support (20) to rotate relative to the fixed support (10).

Description

Lifting devices, thrusters and movable equipment in water areas Technical Field

[0001] The present application relates to the field of power technology for mobile equipment in water areas, and in particular to a lifting device, a propeller and a mobile equipment in water areas. Background Art

[0002] Currently, propeller tilting can be achieved through the power mechanism in the tilting device. When the propeller is subjected to an impact, the impact force can be transmitted to the power mechanism. However, because the power mechanism is internally connected by a rigid structure, when the impact force is large, the internal structure of the power mechanism is easily damaged by the impact and cannot work normally, resulting in the failure of the tilting device.

[0003] Summary of the Invention

[0004] The embodiments of the present application provide a lifting device, a propeller, and a movable device in water areas.

[0005] The lifting device provided in the embodiment of the present application includes a fixed bracket, a rotating bracket, a power mechanism and a limiting mechanism. The rotating bracket is rotatably mounted on the fixed bracket. The power mechanism is arranged between the fixed bracket and the rotating bracket. The limiting mechanism is arranged on at least one of the rotating bracket and the fixed bracket, and the limiting mechanism has a first state and a second state. In the first state, the limiting mechanism acts on the power mechanism to allow the power mechanism to drive the rotating bracket to rotate relative to the fixed bracket to lift. In the second state, the limiting mechanism is used to release the effect with the power mechanism to stop the power mechanism from driving the rotating bracket to rotate relative to the fixed bracket; when the impact force on the power mechanism is greater than the force of the limiting mechanism, the limiting mechanism changes from the first state to the second state.

[0006] The propeller provided in the embodiment of the present application includes a propeller body and a lifting device, and the lifting device is connected to the propeller body. The lifting device includes a fixed bracket, a rotating bracket, a power mechanism and a limiting mechanism. The rotating bracket is rotatably mounted on the fixed bracket. The power mechanism is arranged between the fixed bracket and the rotating bracket. The limiting mechanism is arranged on at least one of the rotating bracket and the fixed bracket, and the limiting mechanism has a first state and a second state. In the first state, the limiting mechanism acts on the power mechanism to allow the power mechanism to drive the rotating bracket to rotate and lift relative to the fixed bracket. In the second state, the limiting mechanism is used to release the effect with the power mechanism to stop the power mechanism from driving the rotating bracket to rotate relative to the fixed bracket; when the impact force on the power mechanism is greater than the force of the limiting mechanism, the limiting mechanism changes from the first state to the second state.

[0007] An embodiment of the present application provides a movable device for use in water areas, which includes a propeller. The propeller includes a propeller body and a tilting device, and the tilting device is connected to the propeller body. The tilting device includes a fixed bracket, a rotating bracket, a power mechanism and a limiting mechanism. The rotating bracket is rotatably mounted on the fixed bracket. The power mechanism is configured between the fixed bracket and the rotating bracket. The limiting mechanism is configured on at least one of the rotating bracket and the fixed bracket, and the limiting mechanism has a first state and a second state. In the first state, the limiting mechanism is configured on at least one of the rotating bracket and the fixed bracket, and the limiting mechanism has a first state and a second state. In the first state, the limiting mechanism acts on the power mechanism to allow the power mechanism to drive the rotating bracket to rotate and tilt relative to the fixed bracket. In the second state, the limiting mechanism is used to release the action of the power mechanism to stop the power mechanism from driving the rotating bracket to rotate relative to the fixed bracket. When the impact force on the power mechanism is greater than the force acting on the limiting mechanism, the limiting mechanism changes from the first state to the second state.

[0008] In the lifting device, propeller and movable device in water area of ​​the present application, a limiting mechanism is arranged on at least one of the rotating bracket and the fixed bracket, and the limiting mechanism has a first state and a second state. In the first state, the limiting mechanism acts on the power mechanism to allow the power mechanism to drive the rotating bracket to rotate relative to the fixed bracket to lift. In the second state, the limiting mechanism is used to release the action with the power mechanism to stop the power mechanism from driving the rotating bracket to rotate relative to the fixed bracket, thereby preventing the impact force from causing damage to the power mechanism, thereby ensuring the normal operation of the lifting device.

[0009] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0011] FIG1 is a schematic diagram of the three-dimensional structure of a warping device according to some embodiments of the present application;

[0012] FIG2 is a perspective exploded schematic diagram of the warping device shown in FIG1 ;

[0013] FIG3 is a schematic diagram of the three-dimensional structure of the fixing bracket and the limiting mechanism of the warping device shown in FIG1 in the first state;

[0014] FIG4 is a schematic diagram of the three-dimensional structure of the fixing bracket and the limiting mechanism of the tilting device shown in FIG1 in the second state;

[0015] FIG5 is an enlarged schematic diagram of point V in FIG3;

[0016] FIG6 is a schematic diagram of the three-dimensional structure of the fixing bracket and the limiting mechanism in the first state of the tilting device according to other embodiments of the present application;

[0017] FIG7 is a schematic diagram of the three-dimensional structure of the fixing bracket and the limiting mechanism in the tilting device shown in FIG6 in the second state;

[0018] FIG8 is a schematic structural diagram of a warping device according to some other embodiments of the present application;

[0019] FIG9 is a schematic three-dimensional structural diagram of a portion of the structure of the warping device shown in FIG8 ;

[0020] FIG10 is an enlarged schematic diagram of point X in FIG9;

[0021] FIG11 is a schematic structural diagram of a limiting mechanism in a warping device according to yet other embodiments of the present application;

[0022] FIG12 is a schematic structural diagram of a movable device for use in water areas according to certain embodiments of the present application. DETAILED DESCRIPTION

[0023] The following further describes the embodiments of the present application in conjunction with the accompanying drawings. The same or similar reference numerals in the accompanying drawings represent the same or similar elements or elements with the same or similar functions.

[0024] In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only used to explain the embodiments of the present application and should not be understood as limiting the present application.

[0025] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] Please refer to Figure 1 or Figure 8. The lifting device 100 provided in the embodiment of the present application includes a fixed bracket 10, a rotating bracket 20, a power mechanism 30 and a limiting mechanism 40. The rotating bracket 20 is rotatably mounted on the fixed bracket 10. The power mechanism 30 is arranged between the fixed bracket 10 and the rotating bracket 20. The limiting mechanism 40 is arranged on at least one of the rotating bracket 20 and the fixed bracket 10. The limiting mechanism 40 has a first state and a second state. In the first state, the limiting mechanism 40 acts on the power mechanism 30 to allow the power mechanism 30 to drive the rotating bracket 20 to rotate relative to the fixed bracket 10 to lift. In the second state, the limiting mechanism 40 is used to release the action with the power mechanism 30 to stop the power mechanism 30 from driving the rotating bracket 20 to rotate relative to the fixed bracket 10. When the impact force on the power mechanism 30 is greater than the force of the limiting mechanism 40, the limiting mechanism 40 changes from the first state to the second state. In the present application, the impact force exerted on the power mechanism 30 is mainly formed by the impact force generated by the propeller 200 (shown in FIG10 ) being obstructed in the propulsion direction during the propulsion process, and is fed back to the power mechanism 30 of the lift device 100 along the entire power transmission path from the impact position to the lift device 100.

[0027] Referring to Figures 1 and 2, in some embodiments, the fixed bracket 10 may include two, with the side walls 19 of the two fixed brackets 10 spaced apart. The rotating bracket 20 and the power mechanism 30 are both disposed between the side walls 19 of the two fixed brackets 10. When the limiting mechanism 40 is in a first state, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10. When the limiting mechanism 40 is in a second state, the power mechanism 30 stops driving the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10. It will be understood that in some embodiments, even when the power mechanism 30 stops driving the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, the rotating bracket 20 can still rotate relative to the fixed bracket 10 under the action of an impact force, thereby relieving the impact force on the rotating bracket 20 and preventing damage to the power mechanism 30, the rotating bracket 20, and the fixed bracket 10 from the impact force.

[0028] Furthermore, in some embodiments, the tilting device 100 may also include a connector 101, which is used to connect the two fixed brackets 10. The provision of the connector 101 can improve the stability of the installation of the tilting device 100, preventing the two fixed brackets 10 from shaking and causing the rotating bracket 20 and the power mechanism 30 to fall off, thereby ensuring the stable operation of the tilting device 100. It should be noted that in some embodiments, the connector 101 and the fixed brackets 10 can be connected using one or more connection methods such as bolt connection, snap connection, bonding, or welding.

[0029] Please refer to Figures 1 and 2. In some embodiments, the limiting mechanism 40 can be configured on the fixed bracket 10, and the rotating bracket 20 is rotatably connected to the power mechanism 30. Thus, when the limiting mechanism 40 is in the first state, the limiting mechanism 40 acts on the power mechanism 30, that is, the limiting mechanism 40 can apply a force to the power mechanism 30 to ensure that the power mechanism 30 can only rotate relative to the fixed bracket 10. In this case, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10; when the limiting mechanism 40 is in the second state, the limiting mechanism 40 is used to release the effect on the power mechanism 30, that is, the limiting mechanism 40 releases the force on the power mechanism 30 to allow the power mechanism 30 to not only rotate relative to the fixed bracket 10 but also slide relative to the fixed bracket 10. In this case, the power mechanism 30 cannot drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, that is, the power mechanism 30 will not be impacted by the impact force. Please refer to Figure 8. In other embodiments, the limiting mechanism 40 can be configured on the rotating bracket 20, and the fixed bracket 10 is rotatably connected to the power mechanism 30. Thus, when the limiting mechanism 40 is in the first state, the limiting mechanism 40 acts on the power mechanism 30, that is, the limiting mechanism 40 can apply a force to the power mechanism 30 to ensure that the power mechanism 30 can only rotate relative to the rotating bracket 20. In this case, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10; when the limiting mechanism 40 is in the second state, the limiting mechanism 40 is used to release the effect on the power mechanism 30, that is, the limiting mechanism 40 releases the force on the power mechanism 30 to allow the power mechanism 30 to not only rotate relative to the rotating bracket 20 but also slide relative to the rotating bracket 20. In this case, the power mechanism 30 cannot drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, that is, the power mechanism 30 will not be affected by the impact force.Please refer to Figures 1, 2 and 8. In some further embodiments, the limiting mechanism 40 may be configured on the fixed bracket 10 and the rotating bracket 20, that is, the limiting mechanism 40 may include two, and the two limiting mechanisms 40 respectively cooperate with the opposite ends of the power mechanism 30. Thus, when the limiting mechanism 40 is in a first state, the limiting mechanism 40 acts on the power mechanism 30 to ensure that the power mechanism 30 can only rotate relative to the fixed bracket 10 and only rotate relative to the rotating bracket 20. In this case, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10; when the limiting mechanism 40 is in a second state, the limiting mechanism 40 is used to release the action with the power mechanism 30, so as to allow the power mechanism 30 to not only rotate relative to the fixed bracket 10 but also slide relative to the fixed bracket 10, and to allow the power mechanism 30 to not only rotate relative to the rotating bracket 20 but also slide relative to the rotating bracket 20. In this case, the power mechanism 30 cannot drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, that is, the power mechanism 30 will not be impacted by the impact force.

[0030] In certain embodiments, the limiting mechanism 40 can transition between a first state and a second state. This, on the one hand, prevents damage to the power mechanism 30 caused by impact forces, ensuring the normal operation of the tilting device 100. On the other hand, the limiting mechanism 40 can transition from the second state to the first state, ensuring that the power mechanism 30 can continue to operate normally after the impact force is removed. Furthermore, the transition of the limiting mechanism 40 from the second state to the first state does not require manual intervention, and there are no parts to damage, making it easy to use and reducing the maintenance cost of the tilting device 100. The "no manual intervention" referred to in this embodiment means that there is no need to manually disassemble the tilting device 100 for maintenance or manually use tools to restore the power mechanism to a state where it can normally drive the rotating bracket 20 to tilt.

[0031] Specifically, in some embodiments, the first state may be: the state of the limiting mechanism 40 when the power mechanism 30 is not subjected to an impact force, or when the impact force applied to the power mechanism 30 is less than the force applied by the limiting mechanism 40; the second state may be: the state of the limiting mechanism 40 when the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40. Among them, when the tilting device 100 is working normally (the power mechanism 30 is not subjected to an impact force or the impact force applied to the power mechanism 30 is less than the force applied by the limiting mechanism 40), the limiting mechanism 40 is in the first state and generates a force on the power mechanism 30. At this time, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10; when the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, that is, when the tilting device 100 is impacted and transmitted to the power mechanism 30, and the impact force transmitted to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, The limiting mechanism 40 changes from the first state to the second state. At this time, the limiting mechanism 40 releases the force acting on the power mechanism 30, and the power mechanism 30 cannot drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, that is, the power mechanism 30 will not be affected by the impact force; after the impact force on the power mechanism 30 is canceled, that is, when the impact force on the tilting device 100 disappears, the limiting mechanism 40 can be changed from the second state to the first state. At this time, the limiting mechanism 40 acts on the power mechanism 30 again, so that the power mechanism 30 can normally drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10.

[0032] Referring to Figures 1 and 2, in certain embodiments, the limiting mechanism 40 includes a slidingly engaged moving member 41 and a guide member 43. The moving member 41 is rotatably connected to at least one of a first connecting mechanism 50 and a second connecting mechanism 60. The power mechanism 30 includes a first end 31 and a second end 33 opposite each other. The first connecting mechanism 50 is disposed between the first end 31 of the power mechanism 30 and the fixed bracket 10, and the second connecting mechanism 60 is disposed between the second end 33 of the power mechanism 30 and the rotating bracket 20. The power mechanism 30 drives the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10 via the first connecting mechanism 50 and the second connecting mechanism 60. The limiting mechanism 40 acts on at least one of the first connecting mechanism 50 and the second connecting mechanism 60 to limit the first connecting mechanism 50 and the second connecting mechanism 60 to maintain a rotational pair with the moving part 41 in the first state; in the second state, it allows at least one of the first connecting mechanism 50 and the second connecting mechanism 60 to form a rotational pair with the moving part 41, and allows a moving pair to be formed between the moving part 41 connected to at least one of the first connecting mechanism 50 and the second connecting mechanism 60 and the guide part 43.

[0033] A kinematic pair is a movable connection between two components that directly contact and enable relative rotation. The points, lines, and surfaces on the two components that form the kinematic pair are called kinematic pair elements. It should be noted that in some embodiments, kinematic pairs include, but are not limited to, translation pairs, rotation pairs, and screw pairs.

[0034] Please continue to refer to Figures 1 and 2. In some embodiments, the limiting mechanism 40 cooperates with the first connecting mechanism 50. Thus, when the limiting mechanism 40 is in the first state, the limiting mechanism 40 can limit the first connecting mechanism 50 and the moving member 41 to maintain a rotational pair (the first connecting mechanism 50 rotates relative to the moving member 41). At this time, no moving pair is formed between the moving member 41 connected to the first connecting mechanism 50 and the guide member 43, that is, the moving member 41 will not move along the guide member 43; when the limiting mechanism 40 is in the second state, the limiting mechanism 40 is used to release the restriction on the first connecting mechanism 50, so that the first connecting mechanism 50 and the moving member 41 form a rotational pair, and a moving pair is formed between the moving member 41 connected to the first connecting mechanism 50 and the guide member 43 (the moving member 41 will move along the guide member 43). Please refer to Figure 8. In other embodiments, the limiting mechanism 40 cooperates with the second connecting mechanism 60, so that when the limiting mechanism 40 is in the first state, the limiting mechanism 40 can limit the second connecting mechanism 60 and the moving member 41 to maintain a rotational pair (the second connecting mechanism 60 rotates relative to the moving member 41). At this time, no moving pair is formed between the moving member 41 connected to the second connecting mechanism 60 and the guide member 43, that is, the moving member 41 will not move along the guide member 43; when the limiting mechanism 40 is in the second state, the limiting mechanism 40 is used to release the restriction on the second connecting mechanism 60, so that the second connecting mechanism 60 and the moving member 41 form a rotational pair, and a moving pair is formed between the moving member 41 connected to the second connecting mechanism 60 and the guide member 43 (the moving member 41 will move along the guide member 43).Please refer to Figures 1, 2 and 8. In some further embodiments, the limiting mechanism 40 may include two, and the two limiting mechanisms 40 respectively cooperate with the first connecting mechanism 50 and the second connecting mechanism 60. Thus, when the limiting mechanism 40 is in the first state, the limiting mechanism 40 cooperating with the first connecting mechanism 50 can limit the first connecting mechanism 50 and the moving member 41 to maintain in the rotation pair (the first connecting mechanism 50 rotates relative to the moving member 41), and the limiting mechanism 40 cooperating with the second connecting mechanism 60 can limit the second connecting mechanism 60 and the moving member 41 to maintain in the rotation pair (the second connecting mechanism 60 rotates relative to the moving member 41). At this time, no moving pair is formed between the moving member 41 connected to the first connecting mechanism 50 and the guide member 43 on the fixed bracket 10, and no moving pair is formed between the moving member 41 connected to the second connecting mechanism 60 and the guide member 43 on the rotating bracket 20. That is, the moving member 41 connected to the first connecting mechanism 50 will not move along the fixed When the guide member 43 on the bracket 10 moves, the movable member 41 connected to the second connecting mechanism 60 will not move along the guide member 43 on the rotating bracket 20; when the limiting mechanism 40 is in the second state, the limiting mechanism 40 cooperating with the first connecting mechanism 50 can release the restriction with the first connecting mechanism 50, so that the first connecting mechanism 50 and the movable member 41 form a rotational pair, and a moving pair is formed between the movable member 41 connected to the first connecting mechanism 50 and the guide member 43 (the movable member 41 connected to the first connecting mechanism 50 will move along the guide member 43 on the fixed bracket 10), and the limiting mechanism 40 cooperating with the second connecting mechanism 60 can release the restriction with the second connecting mechanism 60, so that the second connecting mechanism 60 and the movable member 41 form a rotational pair, and a moving pair is formed between the movable member 41 connected to the second connecting mechanism 60 and the guide member 43 (the movable member 41 connected to the second connecting mechanism 60 will move along the guide member 43 on the rotating bracket 20).

[0035] 1 and 2 , in some embodiments, the power mechanism 30 may include a telescopic assembly 35, which includes a main body 351 and a telescopic rod 353. The telescopic rod 353 is telescopically mounted on the main body 351. A first connecting mechanism 50 is disposed between the main body 351 and the fixed bracket 10, and a second connecting mechanism 60 is disposed between the telescopic rod 353 and the rotating bracket 20. It should be noted that in some embodiments, the telescopic assembly 35 may be driven by a motor or a hydraulic drive.

[0036] In an embodiment of the present application, the first connecting mechanism 50 may include a first shaft 51, and the first end 31 of the power mechanism 30 is rotatably connected to the limiting mechanism 40 through the first shaft 51. The second connecting mechanism 60 may include a second shaft 61, and the second end 33 of the power mechanism 30 is rotatably connected to the limiting mechanism 40 through the second shaft 61. Thus, the first end 31 of the power mechanism 30 can rotate relative to the fixed bracket 10, and the second end 33 of the power mechanism 30 can rotate relative to the rotating bracket 20, so that the power mechanism 30 can drive the rotating bracket 20 to rotate relative to the fixed bracket 10 through the first connecting mechanism 50 and the second connecting mechanism 60, thereby realizing the tilting of the rotating bracket 20.

[0037] It can be understood that, referring to Figures 2 and 12, the tilting device 100 can be applied to the propeller 200. Among them, the propeller 200 includes a propulsion state or a tilted state. The propulsion state means that the propeller 215 of the propeller 200 is located underwater and can generate power to propel the hull 1001 of the movable device 1000 in the water area to move. The tilted state refers to tilting (part of the structure of) the propeller 200 to avoid obstacles or leave the water surface. It should be noted that when the propeller 200 is tilted to avoid obstacles, the propeller 215 of the propeller 200 may still be located underwater, or the propeller 215 of the propeller 200 may completely leave the water surface. When the propeller 215 of the propeller 200 completely leaves the water surface, the greater the angle at which the propeller 200 is tilted, the farther the propeller 215 is from the water surface. When the propeller 200 is in the propulsion state, if the propeller 200 is subjected to an impact force (for example, the impact force generated by the propeller 200 colliding with an obstacle), the impact force on the propeller 200 can be transmitted to the power mechanism 30, so that the power mechanism 30 is subjected to the impact force. In this case, if the propeller 200 does not increase the tilting angle to release the impact force, the power mechanism 30 and the propeller 200 are likely to be deformed and damaged by the impact force. Therefore, in this embodiment, one end of the telescopic rod 353 is located in the main body 351, and the other end is connected to the rotating bracket 20 via the second connecting mechanism 60. When the propeller 200 is about to be subjected to the impact force, the telescopic rod 353 can be extended from the main body 351 to push the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby causing the propeller 200 to change to the tilting state to avoid the obstacle and prevent the propeller 200 from being damaged by the impact force. In this case, the driving mechanism 30 actively drives the rotating bracket 20 to tilt relative to the fixed bracket 10 to actively avoid the obstacle and avoid the impact. In actual situations, the driving mechanism 30 may not have enough time to actively drive the rotating bracket 20 to rotate to a safe position relative to the fixed bracket 20, which will cause the propeller 100 to be passively subjected to the impact force. At this time, due to the mutual transmission of the power paths of the propeller 100, the impact force will be transmitted to the limiting mechanism 40. The limiting force of the limiting mechanism 40 on the power mechanism 30 is less than the impact force, so the limiting mechanism 40 allows the driving mechanism 30 to passively form a new constraint relationship relative to at least one of the fixed bracket 10 and the rotating bracket 20, thereby releasing the impact force to ensure the safety of the fixed bracket 10, the rotating bracket 20 and the power mechanism 30.

[0038] Specifically, the impact force on the propeller 200 may be: the impact force when the propeller 200 collides with an obstacle; the impact force on the propeller 200 may also be: the resistance force when the propeller 200 reaches a shallow beach; the impact force on the propeller 200 may also be: the interference force of underwater organisms on the propeller 200, etc. In addition, when the propeller 200 is not needed, the tilting device 100 can drive the propeller 200 to achieve tilting, thereby preventing the propeller 200 from being immersed in water for a long time, which may cause damage to the propeller 200 or shorten its lifespan.

[0039] Furthermore, in certain embodiments, the rotating bracket is connected to the main unit of the propulsion device, so that when the power mechanism drives the rotating bracket to rotate and tilt relative to the fixed bracket, the main unit of the propulsion device can tilt along with the rotating bracket. Therefore, if the main unit of the propulsion device is subjected to an impact force, the impact force can be transmitted to the power mechanism and the fixed bracket via the rotating bracket. Because the tilting device is internally connected via a rigid structure, the internal structure of the tilting device (such as the power mechanism) can be damaged by the impact force, resulting in failure of the tilting device and affecting the normal operation of the tilting device and the propulsion device. In the embodiment of the present application, when the lifting device 100 is subjected to impact force, the limiting mechanism 40 can allow at least one of the first connecting mechanism 50 and the second connecting mechanism 60 to form a rotating pair with the movable member 41, and a moving pair is formed between the movable member 41 connected to at least one of the first connecting mechanism 50 and the second connecting mechanism 60 and the guide member 43. At this time, the rotation range of the rotating bracket 20 relative to the fixed bracket 10 is increased, that is, the rotating bracket 20 and the propeller 200 can be lifted at a larger angle, thereby releasing the impact force, preventing the impact force from causing damage to the internal structure of the power mechanism 30 and the propeller 200, and ensuring the normal operation of the lifting device 100 and the propeller 200.

[0040] Since the limiting mechanism 40 allows at least one of the first connecting mechanism 50 and the second connecting mechanism 60 to form a rotation pair with the moving member 41, and a moving pair is formed between the moving member 41 connected to at least one of the first connecting mechanism 50 and the second connecting mechanism 60 and the guide member 43, the rotation range of the rotating bracket 20 relative to the fixed bracket 10 is increased, thereby enabling the release of the impact force. However, when the impact force applied to the tilting device 100 disappears, if the first connecting mechanism 50 still forms a rotation pair with the moving member 41, and a moving pair is formed between the moving member 41 connected to the first connecting mechanism 50 and the guide member 43, and / or the second connecting mechanism 60 still forms a rotation pair with the moving member 41, and a moving pair is formed between the moving member 41 connected to the second connecting mechanism 60 and the guide member 43, the driving force of the power mechanism 30 cannot be stably transmitted to the rotating bracket 20, thereby causing the power mechanism 30 to be unable to drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, thereby affecting the normal operation of the tilting device 100. Therefore, in some embodiments, after the impact force exerted on the power mechanism 30 is removed, the limiting mechanism 40 can be transformed from the second state to the first state, thereby enabling the limiting mechanism 40 to re-limit the first connecting mechanism 50 and the second connecting mechanism 60 to maintain a rotating pair with the moving part 41. At this time, the power mechanism 30 can normally drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10.

[0041] Referring to FIG. 1 and FIG. 2 , in some embodiments, the power mechanism 30 may further include a driving assembly 37 , and the driving assembly 37 is configured to drive the telescopic rod 353 to extend and retract relative to the main body 351 .

[0042] Specifically, in some embodiments, the drive assembly 37 may be a hydraulic cylinder, a motor, etc. The drive assembly 37 may be connected to the telescopic assembly 35 via one or more structures such as a gear assembly, a pulley assembly, a screw assembly, or a hydraulic transmission. As a result, the driving force of the drive assembly 37 can be transmitted to the telescopic rod 353, so that the telescopic rod 353 can be extended and retracted relative to the main body 351, thereby driving the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, and further achieving the tilting of the propeller 200 (shown in Figure 12), thereby preventing the tilting device 100 and the propeller 200 from being damaged by impact force.

[0043] In the lifting device 100 of the present application, the limiting mechanism 40 is configured on at least one of the rotating bracket 20 and the fixed bracket 10. The limiting mechanism 40 has a first state and a second state. In the first state, the limiting mechanism 40 acts on the power mechanism 30 to allow the power mechanism 30 to drive the rotating bracket 20 to rotate relative to the fixed bracket 10 to lift. In the second state, the limiting mechanism 40 is used to release the action with the power mechanism 30 to stop the power mechanism 30 from driving the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby preventing the impact force from causing damage to the power mechanism 30, thereby ensuring the normal operation of the lifting device 100.

[0044] The following is a further explanation of the tilting device 100 with reference to the accompanying drawings.

[0045] Referring to Figures 1 and 2 , in the first aspect of the present application, a tilting device 100 comprises a fixed bracket 10 including a first end 11 and a second end 13 opposite each other, and a rotating bracket 20 is rotatably connected to the second end 13 of the fixed bracket 10. A limiting mechanism 40 acts on a first connecting mechanism 50. In a second state, the limiting mechanism 40 allows a rotational pair to be formed between the first connecting mechanism 50 and the movable member 41, and a moving pair to be formed between the movable member 41 connected to the first connecting mechanism 50 and the guide member 43.

[0046] Among them, when the power mechanism 30 is subjected to an impact force, and the impact force exerted on the power mechanism 30 is greater than the force of the limiting mechanism 40, a rotating pair is formed between the first connecting mechanism 50 and the movable member 41, and a moving pair is formed between the movable member 41 connected to the first connecting mechanism 50 and the guide member 43, that is, the first connecting mechanism 50 is in direct contact with the movable member 41 and can rotate relative to each other, and the movable member 41 connected to the first connecting mechanism 50 is in direct contact with the guide member 43 and can move relative to each other. Therefore, the first connecting mechanism 50 and the power mechanism 30 can also move relative to the guide member 43 together with the movable member 41, thereby increasing the rotation range of the rotating bracket 20 relative to the fixed bracket 10, that is, increasing the tilting range of the rotating bracket 20, thereby achieving the release of the impact force and preventing the tilting device 100 from being damaged.

[0047] Specifically, referring to FIG12 , if the lifting device 100 is not provided with the limiting mechanism 40 of the present application, and the first connecting structure 50 and the second connecting structure 60 are in the unrestricted state, the rotation and lifting of the rotating bracket 20 relative to the fixed bracket 10 are not constrained. Therefore, when the propeller 200 is in the propulsion state, the propeller 200 causes continuous and disordered fluctuations under the disordered fluctuations of the water flow, resulting in the power generated by the propeller 200 being unable to effectively propel the hull 1001 to move, thereby affecting the normal operation of the movable device 1000 in the water area. Therefore, in this embodiment, the first connecting mechanism 50 is restricted by the limiting mechanism 40 and maintains a rotation pair with the moving member 41, so that when the rotating bracket 20 is effectively driven to lift by the power mechanism 30, the rotating bracket 20 can maintain normal lifting and rotational movement relative to the fixed bracket 10, thereby ensuring that the power generated by the propeller 200 can propel the hull 1001 to move. Moreover, when the lifting device 100 is subjected to an impact force, the limiting mechanism 40 releases the restriction on the first connecting mechanism 50, so that a rotating pair is formed between the first connecting mechanism 50 and the movable member 41, and a moving pair is formed between the movable member 41 connected to the first connecting mechanism 50 and the guide member 43, thereby increasing the rotation range of the rotating bracket 20 relative to the fixed bracket 10, and then releasing the impact force to prevent damage to the lifting device 100 and the propeller 200.

[0048] Referring to Figures 1 and 2, in some embodiments, the first connecting mechanism 50 includes a first shaft 51, and the first end 31 of the power mechanism 30 is rotatably connected to the moving member 41 via the first shaft 51. In the second state, the first shaft 51 can move relative to the fixed bracket 10 along the first direction X1 along with the moving member 41, and fall back along the second direction X2. A guide member 43 is provided on the side wall 19 of the fixed bracket 10. The guide member 43 is used to guide the moving member 41 to move relative to the fixed bracket 10 along the first direction X1 and fall back along the second direction X2. A rotation pair is formed between the first shaft 51 and the moving member 41, and a moving pair is formed between the moving member 41 connected to the first shaft 51 and the guide member 43. The first direction X1 is opposite to the second direction X2. It can be understood that the setting of the guide member 43 can, on the one hand, limit the movement stroke of the first shaft 51 relative to the fixed bracket 10 along the first direction X1, thereby preventing the rotating bracket 20 from rotating too much relative to the fixed bracket 10, causing the head of the propeller 200 to rotate into the hull 1001 due to the excessive tilting angle and collide with the hull 1001; on the other hand, it can prevent the first shaft 51 from separating from the power mechanism 30, thereby ensuring the normal operation of the tilting device 100.

[0049] Specifically, in the first state, the first shaft 51 does not move relative to the fixed bracket 10, and at this time, a rotational pair is formed between the first shaft 51 and the moving member 41; in the second state, the first shaft 51 can move relative to the fixed bracket 10 along the first direction X1, and fall back along the second direction X2, so that a rotational pair is formed between the first shaft 51 and the moving member 41, and a moving pair is formed between the moving member 41 connected to the first shaft 51 and the guide member 43. At this time, the first shaft 51 and the moving member 41 together serve as two components forming the rotational pair, and the rotational pair elements can be: the outer surface of the first shaft 51 and the surface on the moving member 41 that contacts the outer surface of the first shaft 51; the moving member 41 and the guide member 43 together serve as two components forming the moving pair, and the moving pair elements can be: the outer surface of the moving member 41 and the surface on the guide member 43 that contacts the outer surface of the moving member 41.

[0050] More specifically, in certain embodiments, when the power mechanism 30 is not subjected to an impact force, the limiting mechanism 40 limits the first shaft 51 and the moving member 41 to maintain a rotational pair, that is, the first shaft 51 can only rotate relative to the fixed bracket 10. If the propeller 200 needs to be tilted, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, so that the propeller 200 can adjust the tilting angle. At this time, the first shaft 51 can rotate relative to the fixed bracket 10, and the second connecting mechanism 60 can rotate relative to the rotating bracket 20. When the power mechanism 30 is subjected to an impact force, and the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the limiting mechanism 40 allows a rotational pair to be formed between the first shaft 51 and the movable member 41, and a moving pair to be formed between the movable member 41 connected to the first shaft 51 and the guide member 43, that is, the first shaft 51 can rotate relative to the fixed bracket 10 and move along the first direction X1 or the second direction X2. When the first shaft 51 moves relative to the fixed bracket 10 along the first direction X1, the rotation range of the rotating bracket 20 relative to the fixed bracket 10 increases, thereby releasing the impact force applied to the tilting device 100, that is, releasing the impact force applied to the power mechanism 30, preventing the power mechanism 30 from being damaged, and ensuring the normal operation of the tilting device 100; when the impact force applied to the power mechanism 30 disappears, the first shaft 51 can fall back relative to the fixed bracket 10 along the second direction X2, thereby the limiting mechanism 40 can re-limit the first shaft 51 and the movable member 41 to maintain the rotational pair.

[0051] Referring to Figure 2 , in some embodiments, the guide member 43 is a groove 431 disposed on the side wall 19 of the fixed bracket 10, with at least a portion of the movable member 41 located within the groove 431. Specifically, one end of the first shaft 51 passes through the movable member 41 and moves along with the movable member 41 within the groove 431 relative to the fixed bracket 10 in a first direction X1 or falls back relative to the fixed bracket 10 in a second direction X2. The guide member 43 is a groove 431 disposed on the side wall 19 of the fixed bracket 10, which enables the tilting device 100 to guide the first shaft 51 without requiring additional structural components, thereby simplifying the installation steps of the tilting device 100.

[0052] Please continue to refer to Figure 2. In other embodiments, the guide member 43 is installed on the side wall 19 of the fixed bracket 10. The guide member 43 is provided with a groove 431, and at least a portion of the movable member 41 is located in the groove 431. Specifically, one end of the first shaft 51 is provided with the movable member 41 and moves relative to the fixed bracket 10 along the first direction X1 in the groove 431 along with the movable member 41, or falls back relative to the fixed bracket 10 along the second direction X2. In some embodiments, the guide member 43 can be connected to the side wall 19 of the fixed bracket 10 by non-detachable connection methods such as bonding, welding, or integral molding, so as to prevent the guide member 43 from falling off when the movable member 41 moves relative to the fixed bracket 10, thereby ensuring the working stability of the tilting device 100. In other embodiments, the guide member 43 can be connected to the side wall 19 of the fixed bracket 10 by detachable connection methods such as threaded connection or snap connection, so that when the guide member 43 is damaged (such as collision wear or corrosion, etc.), it can be easily removed and replaced.

[0053] It is understood that in some embodiments, a bushing or bearing (not shown) may be provided on the first shaft 51. The bushing or bearing is mounted on the portion of the first shaft 51 that extends into the groove 431 and is movable within the groove 431. The provision of the bushing or bearing can ensure the stability of the movement of the first shaft 51 relative to the fixed bracket 10, reducing or even preventing the first shaft 51 from becoming stuck within the groove 431.

[0054] Referring to Figures 2 to 4, in some embodiments, along the moving direction of the moving member 41, the moving member 41 includes a first end 411 and a second end 413 opposite to each other, the first end 411 of the moving member 41 is provided with a matching portion 4111, and the limiting mechanism 40 further includes a limiting member 45. In a first state (shown in Figure 3), the limiting member 45 interferes with the matching portion 4111; in a second state (shown in Figure 4), the limiting member 45 is separated from the matching portion 4111. It should be noted that, in some embodiments, the matching portion 4111 can also be provided at any position between the first end 411 of the moving member 41 and the second end 413 of the moving member 41.

[0055] Specifically, in some embodiments, along the moving direction of the moving member 41, that is, along the first direction X1 or the second direction X2, the moving member 41 includes a first end 411 and a second end 413 opposite to each other. The first direction X1 is the direction in which the second end 413 of the moving member 41 points to the first end 411 of the moving member 41, and the second direction X2 is the direction in which the first end 411 of the moving member 41 points to the second end 413 of the moving member 41. When the limiting mechanism 40 is in the first state, the limiting member 45 can interfere with the matching portion 4111, thereby, the limiting member 45 can apply a force to the first shaft 51 through the movable member 41, thereby limiting the first shaft 51 and the movable member 41 to maintain in a rotation pair; when the limiting mechanism 40 is in the second state, the limiting member 45 is separated from the matching portion 4111. At this time, the limiting member 45 has no force on the first shaft 51, thereby allowing a rotation pair to be formed between the first shaft 51 and the movable member 41, and a moving pair to be formed between the movable member 41 connected to the first shaft 51 and the guide member 43, thereby, the first shaft 51 and the movable member 41 can move together along the first direction X1 or the second direction X2, thereby increasing the rotation range of the rotating bracket 20 relative to the fixed bracket 10, releasing the impact force on the tilting device 100, that is, releasing the impact force on the power mechanism 30, thereby preventing the power mechanism 30 from being damaged, and ensuring the normal operation of the tilting device 100.

[0056] Further, referring to Figures 2 to 4 , in some embodiments, the limiting member 45 includes a limiting rod 451 and a protrusion 453. One end of the limiting rod 451 is rotatably connected to the fixed bracket 10, and the protrusion 453 extends from one side of the limiting rod 451 toward the guide member 43. In a first state, the protrusion 453 penetrates the guide member 43 and contacts the mating portion 4111. In a second state, the limiting rod 451 rotates relative to the fixed bracket 10, driving the protrusion 453 to disengage from the mating portion 4111. It should be noted that in some embodiments, the contact between the protrusion 453 and the mating portion 4111 can be: point contact between the protrusion 453 and the mating portion 4111; line contact between the protrusion 453 and the mating portion 4111; or surface contact between the protrusion 453 and the mating portion 4111.

[0057] Specifically, in some embodiments, a rotating shaft (not shown) may be provided on the fixed bracket 10, and one end of the limiting rod 451 is sleeved on the rotating shaft and can rotate relative to the fixed bracket 10. The protrusion 453 extends from the side of the limiting rod 451 facing the guide member 43 in the direction of the guide member 43, and can extend into the guide member 43 to interfere with the matching portion 4111. Therefore, when the limiting mechanism 40 is in the first state, the protrusion 453 can extend into the guide member 43 and interfere with the matching portion 4111 to limit the first shaft 51 and the moving member 41 to maintain a rotation pair, that is, to limit the first shaft 51 to be able to rotate only relative to the fixed bracket 10; when the power mechanism 30 is subjected to an impact force, and the impact force on the power mechanism 30 is greater than the force of the limiting mechanism 40, the limiting rod 451 can rotate relative to the fixed bracket 10, so that the limiting mechanism 40 is changed from the first state to the second state. The state changes to the second state. At this time, the protrusion 453 is released from contact with the matching portion 4111, that is, the protrusion 453 releases the restriction on the matching portion 4111, so that a moving pair is formed between the moving member 41 connected to the first shaft 51 and the guide member 43, and a rotating axis is formed between the first shaft 51 and the moving member 41, that is, the first shaft 51 can rotate and move relative to the fixed bracket 10. Therefore, when the first shaft 51 moves relative to the fixed bracket 10 along the first direction X1, the rotation range of the rotating bracket 20 relative to the fixed bracket 10 is increased, thereby releasing the impact force on the power mechanism 30, preventing damage to the power mechanism 30, and ensuring the normal operation of the lift device 100.

[0058] Please refer to Figures 2 to 5. In some embodiments, the mating portion 4111 includes a first end 4113 and a second end 4115 relative to each other. The mating portion 4111 is tilted and, along the first direction X1, the second end 4115 of the mating portion 4111 is farther away from the first end 411 of the moving member 41 than the first end 4113 of the mating portion 4111.

[0059] Specifically, if along the first direction X1, the distance between the first end 4113 of the mating portion 4111 and the first end 411 of the moving part 41 is equal to the distance between the second end 4115 of the mating portion 4111 and the first end 411 of the moving part 41, then when the moving part 41 moves along the first direction X1, there is a mechanical limit blockage between the protrusion 453 and the mating portion 4111, which makes it difficult to separate the protrusion 453 and the mating portion 4111, and the moving part 41 cannot move along the first direction X1, thereby making it impossible to release the impact force received by the power mechanism 30, thereby affecting the normal operation of the tilting device 100. In this embodiment, the inclined arrangement of the mating portion 4111 can prevent the protruding portion 453 from getting stuck with the mating portion 4111 when the moving member 41 moves along the first direction X1, thereby facilitating the disengagement of the protruding portion 453 from the mating portion 4111, thereby ensuring that a moving pair can be formed between the moving member 41 connected to the first shaft 51 and the guide member 43, and a rotating pair can be formed between the first shaft 51 and the moving member 41, thereby releasing the impact force on the power mechanism 30 and ensuring the normal operation of the tilting device 100. It should be noted that in some embodiments, the mating portion 4111 can be a planar structure, an arcuate structure, a curved structure, etc., which is not limited here.

[0060] Please continue to refer to Figures 2 to 5. In some embodiments, the first end 411 of the moving member 41 and the second end 413 of the moving member 41 are both cambered surfaces. The protrusion 453 includes a first side 4531 and a second side 4533 that are connected. The first side 4531 of the protrusion 453 is used to cooperate with and interfere with the matching portion 4111. The second side 4533 of the protrusion 453 is opposite to the moving member 41. The second side 4533 of the protrusion 453 is tilted. Along the first direction X1, the distance between the second side 4533 of the protrusion 453 and the central axis of the moving member 41 gradually increases.

[0061] Specifically, in some embodiments, when the limiting mechanism 40 is in the second state and the moving member 41 moves along the first direction X1, after the first side 4531 of the protrusion 453 is disengaged from the matching portion 4111, the moving member 41 continues to move along the first direction X1. At this time, the connection between the first side 4531 of the protrusion 453 and the second side 4533 of the protrusion 453 can conflict with the side wall of the moving member 41. If the moving member 41 continues to move along the first direction X1, the protrusion 453 can be completely separated from the moving member 41. In this case, the protrusion 453 is not restricted by the moving member 41, and the first side 4531 of the protrusion 453 and the second side 4533 of the protrusion 453 are always located in the guide member 43. After the impact force on 30 is removed, the moving part 41 can move along the second direction X2 under the action of gravity to return to its original position so that the protrusion 453 and the matching part 4111 can be re-matched. In this case, the second end 413 of the moving part 41 contacts the second side 4533 of the protrusion 453 first. Since the second end 413 of the moving part 41 is an arc surface and the second side 4533 of the protrusion 453 is tilted, the friction between the moving part 41 and the second side 4533 of the protrusion 453 is small, which can facilitate the movement of the moving part 41 along the second direction X2, ensuring that the moving part 41 can return to its original position, that is, the first axis 51 returns to its original position, and then the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10.

[0062] Please continue to refer to Figures 2 to 5. In some embodiments, the protrusion 453 also includes a third side 4535. The first side 4531 of the protrusion 453 and the third side 4535 of the protrusion 453 are respectively connected to the opposite ends of the second side 4533 of the protrusion 453, and the third side 4535 of the protrusion 453 never extends into the guide member 43.

[0063] In some embodiments, the stopper 45 is provided with a stopper 459, which extends outward from the guide member 43 and projects from the guide member 43. In some embodiments, the stopper 45 is provided with a stopper 459, which extends outward from the guide member 43 and projects from the guide member 43. Among them, when the limiting mechanism 40 is in the first state, the blocking portion 459 can abut against the outer wall of the guide member 45 toward the side of the guide member 45, thereby, the setting of the blocking portion 459 can ensure that the third side 4535 of the protrusion 453 never extends into the guide member 43. In other words, the setting of the blocking portion 459 can ensure that the third side 4535 of the protrusion 453 never extends into the groove 431 of the guide member 43, thereby, in the process of the moving member 41 moving along the second direction X2, the moving member 41 still first contacts the second side 4533 of the protrusion 453, thereby ensuring the normal movement of the moving member 41 along the second direction X2.

[0064] 2 to 4 , in some embodiments, the limiting mechanism 40 may further include an adjusting member 47, which is connected to the limiting member 45 and is used to limit the rotation of the limiting member 45 relative to the fixed bracket 10. Specifically, in some embodiments, the setting of the adjusting member 47 can enable the limiting mechanism 40 to maintain the first state. That is, when the power mechanism 30 is not subjected to an impact force or the impact force applied to the power mechanism 30 is less than the force applied by the limiting mechanism 40, the adjusting member 47 is used to keep the limiting mechanism 40 in the first state. When the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the adjusting member 47 allows the limiting mechanism 40 to transition to the second state and can return the limiting mechanism 40 from the second state to the first state.

[0065] Furthermore, in some embodiments, the limiting member 45 includes a first end 455 and a second end 457 opposite each other. The first end 455 of the limiting member 45 is rotatably connected to the fixed bracket 10 via a rotating shaft. One end of the adjusting member 47 is connected to the second end 457 of the limiting member 45, and the other end of the adjusting member 47 is connected to the fixed bracket 10. The adjusting member 47 is an elastic element.

[0066] Specifically, in some embodiments, the protrusion 453 can be located at any position between the first end 455 of the limiting member 45 and the second end 457 of the limiting member 45. Among them, the adjusting member 47 can limit the fixing of the limiting member 45 relative to the fixed bracket 10 so that the protrusion 453 and the matching portion 4111 remain in conflict. Specifically, the adjusting member 47 can apply a force to the limiting rod 451 through the second end 457 of the limiting member 45, and the protrusion 453 cooperates with the matching portion 4111 so that the force applied to the limiting rod 451 is transmitted to the moving member 41 and the first shaft 51 connected to the moving member 41. Thus, the force of the limiting mechanism 40 is: the adjusting member 47 acts on the second end 457 of the limiting member 45, and acts on the power mechanism 30 after passing through the protrusion 453, the matching portion 4111 and the first shaft 51 in sequence.

[0067] In some embodiments, the elastic element described in the above embodiments includes any one or more of a tension spring, a compression spring, rubber, a gas spring, and a spring.

[0068] Referring to Figures 2 to 4, in some embodiments, the adjustment member 47 is connected to the first end 455 of the stopper 45. The fixed bracket 10 includes a first side 15 and a second side 17 that are opposite to each other. The protrusion 453 faces the first side 15 of the fixed bracket 10. The first end 455 of the stopper 45 can be positioned at any position between the first side 15 of the fixed bracket 10 and the second side 17 of the fixed bracket 10. If the adjustment member 47 is a tension spring, one end of the adjustment member 47 is connected to the second end 457 of the stopper 45, and the other end of the adjustment member 47 is connected to a position of the fixed bracket 10 near the first side 15 of the fixed bracket 10. That is, the distance between the other end of the adjustment member 47 and the first side 15 of the fixed bracket 10 is less than the distance between the other end of the adjustment member 47 and the second side 17 of the fixed bracket 10. Specifically, the adjustment member 47 can always apply an elastic tension to the stopper 45. The elastic tension can keep the protrusion 453 in contact with the mating portion 4111, thereby maintaining the first shaft 51 and the movable member 41 in a rotational pair. When the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the protrusion 453 and the matching portion 4111 are released from contact. At this time, the limiting rod 451 can rotate relative to the fixed bracket 10 in a direction away from the guide member 43, and the tension spring can be stretched to increase the elastic tension applied by the tension spring to the limiting member 45. Therefore, when the impact force applied to the power mechanism 30 is cancelled, the moving member 41 returns to its initial position along the second direction X2, and the limiting member 45 again keeps the protrusion 453 in contact with the matching portion 4111 under the action of the elastic tension.

[0069] In other embodiments, when the adjustment member 47 is a compression spring, one end of the adjustment member 47 is connected to the second end 457 of the limiting member 45, and the other end of the adjustment member 47 is connected to a position close to the second side 17 of the fixed bracket 10. That is, the distance between the other end of the compression spring and the second side 17 of the fixed bracket 10 is smaller than the distance between the other end of the compression spring and the first side 15 of the fixed bracket 10. Specifically, the compression spring can always apply elastic pressure to the limiting member 45, and the elastic pressure can keep the protrusion 453 in contact with the mating portion 4111, thereby maintaining the first shaft 51 and the moving member 41 in a rotational pair. When the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the protrusion 453 and the matching portion 4111 are released from contact. At this time, the limiting rod 451 can rotate relative to the fixed bracket 10 in a direction away from the guide member 43, and the compression spring can be compressed to increase the elastic pressure applied by the compression spring to the limiting member 45. Therefore, when the impact force applied to the power mechanism 30 is cancelled, the movable member 41 returns to its initial position along the second direction X2, and the limiting member 45, under the action of the elastic pressure, once again keeps the protrusion 453 in contact with the matching portion 4111. Of course, in other embodiments, the limiting member 45 can also be slidably connected to the fixed bracket 10, and the adjusting member 47 applies a force in the sliding direction of the limiting member 45 so that the limiting member 45 can slide to a state where it limits the movable member 41.

[0070] Please refer to Figures 6 and 7. In other embodiments, the first end 455 of the limiting member 45 is rotatably connected to the fixed bracket 10 through the adjusting member 47, and the second end 457 of the limiting member 45 is suspended. Figure 6 is a structural schematic diagram of the limiting mechanism 40 in the first state in this embodiment; Figure 7 is a structural schematic diagram of the limiting mechanism 40 in the second state in this embodiment. Specifically, the adjusting member 47 can apply a force to the limiting rod 451 through the first end 455 of the limiting member 45, and the protrusion 453 cooperates with the matching portion 4111 so that the force applied to the limiting rod 451 is transmitted to the moving member 41 and the first shaft 51 connected to the moving member 41. Thus, the force of the limiting mechanism 40 is: the adjusting member 47 acts on the first end 455 of the limiting member 45, and then acts on the power mechanism 30 after passing through the protrusion 453, the matching portion 4111 and the first shaft 51 in sequence.

[0071] Specifically, in some embodiments, the adjusting member 47 described in the above embodiments includes any one of a torsion bar, a torsion spring, and a one-way damping shaft. More specifically, referring to Figures 2, 6, and 7, in some embodiments, the adjusting member 47 is always able to apply a force to the limiting rod 451 through the first end 455 of the limiting member 45, wherein when the power mechanism 30 is not subjected to an impact force or the impact force applied is less than the force transmitted to the power mechanism 30, the adjusting member 47 can act to limit the mechanism 40 to be in a first state, the protrusion 453 cooperates with the matching portion 4111, and the first shaft 51 only forms a rotational pair with the moving member 41; when the impact force applied to the power mechanism 30 is greater than the force transmitted to the power mechanism 30, the impact force transmitted to the first shaft 51 is greater, causing the first shaft 51 to move along the first direction X1 with the moving member 41 to release the engagement between the protrusion 453 and the matching portion 4111, at which time, the force applied to the limiting rod 451 by the adjusting member 47 through the first end 455 of the limiting member 45 becomes greater. Therefore, after the impact force exerted on the power mechanism 30 is removed, the first shaft 51 and the movable member 41 can return to the starting position along the second direction X2 under the action of gravity, and the limit member 45 can also rotate relative to the fixed bracket 10 under the action of the adjusting member 47 to re-engage the protrusion 453 with the mating portion 4111.

[0072] In some embodiments, the limiting mechanism 40 further includes a limiting member (not shown), one end of which is always connected to the movable member 41, and the other end of which is connected to the guide member 43 or the fixed bracket 10. The limiting member is used to limit the movement of the movable member 41 relative to the fixed bracket 10 in the first direction X1, and the limiting member is an elastic element. Specifically, in some embodiments, the elastic element described in the above embodiments includes any one or more of a tension spring, a compression spring, rubber, a gas spring, and a spring.

[0073] In some embodiments, when the elastic element is a tension spring, one end of the tension spring is connected to the second end 413 of the movable member 41, and the other end of the tension spring is connected to the guide member 43 or the fixed bracket 10. Specifically, the tension spring can always apply an elastic tension to the movable member 41, and the elastic tension can limit the movement of the movable member 41 relative to the fixed bracket 10, so that the first shaft 51 and the movable member 41 are maintained in a rotational pair. In the case where the impact force applied to the power mechanism 30 is greater than the force of the limiting mechanism 40, the movable member 41 can move relative to the fixed bracket 10 along the first direction X1, and the tension spring can be stretched so that the elastic tension applied by the tension spring to the movable member 41 becomes larger. Thus, when the impact force applied to the power mechanism 30 is canceled, the movable member 41 can return to its initial position under the action of the elastic tension, so that the first shaft 51 and the movable member 41 are maintained in a rotational pair.

[0074] In other embodiments, when the elastic element is a compression spring, one end of the compression spring is connected to the first end 411 of the movable member 41, and the other end of the compression spring is connected to the guide member 43 or the fixed bracket 10. Specifically, the compression spring can always apply elastic pressure to the movable member 41, and the elastic pressure can limit the movement of the movable member 41 relative to the fixed bracket 10, so that the first shaft 51 and the movable member 41 are maintained in a rotation pair. When the impact force received by the power mechanism 30 is greater than the force of the limiting mechanism 40, the movable member 41 can move along the first direction X1 relative to the fixed bracket 10, and the compression spring can be stretched so that the elastic pressure applied by the compression spring to the movable member 41 becomes larger. Thus, when the impact force received by the power mechanism 30 is revoked, the movable member 41 can return to the initial position under the action of the elastic pressure, so that the first shaft 51 and the movable member 41 are maintained in a rotation pair.

[0075] Referring to Figures 1 and 2, in some embodiments, the tilting device 100 further includes a third shaft 70, through which the rotating bracket 20 is rotatably connected to the fixed bracket 10. This enables, when the drive assembly 37 drives the telescopic rod 353 of the telescopic assembly 35 to extend or retract relative to the main body 351, the telescopic rod 353 can propel the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby achieving the tilting of the rotating bracket 20. In some embodiments, the third shaft 70 may be provided with a bushing or bearing, disposed at the connection between the third shaft 70 and the fixed bracket 10. The provision of the bushing or bearing can ensure the stability of the rotation of the third shaft 70 relative to the fixed bracket 10, reducing or even preventing the third shaft 70 from getting stuck during rotation within the fixed bracket 10.

[0076] Please refer to Figure 8. In the second aspect of the tilting device 100 of the present application, the limiting mechanism 40 acts on the second connecting mechanism 60. In the second state, the limiting mechanism 40 is used to allow a rotating pair to be formed between the second connecting mechanism 60 and the movable member 41, and a moving pair to be formed between the movable member 41 connected to the second connecting mechanism 60 and the guide member 43.

[0077] Among them, when the power mechanism 30 is subjected to an impact force, and the impact force exerted on the power mechanism 30 is greater than the force of the limiting mechanism 40, a rotating pair is formed between the second connecting mechanism 60 and the movable member 41, and a moving pair is formed between the movable member 41 connected to the second connecting mechanism 60 and the guide member 43, that is, the second connecting mechanism 60 is in direct contact with the movable member 41 and can rotate relative to each other, and the movable member 41 connected to the second connecting mechanism 60 is in direct contact with the guide member 43 and can move relative to each other. Therefore, the second connecting mechanism 60 and the power mechanism 30 can also move relative to the guide member 43 together with the movable member 41, thereby increasing the rotation range of the rotating bracket 20 relative to the fixed bracket 10, that is, increasing the tilting range of the rotating bracket 20, thereby realizing the release of the impact force and preventing the tilting device 100 from being damaged.

[0078] Specifically, referring to FIG12 , if the tilting device 100 is not provided with the limiting mechanism 40 of the present application, and the first connecting structure 50 and the second connecting structure 60 are in the unrestricted state, the rotation and tilting of the rotating bracket 20 relative to the fixed bracket 10 are not constrained. Therefore, when the propeller 200 is in the propulsion state, the propeller 200 causes continuous and disordered fluctuations under the disordered fluctuations of the water flow, resulting in the power generated by the propeller 200 being unable to effectively propel the hull 1001 to move, thereby affecting the normal operation of the movable device 1000 in the water area. Therefore, in this embodiment, the second connecting structure 60 is maintained in a rotational pair with the moving part 41 under the restriction of the limiting mechanism 40, so that when the rotating bracket 20 is effectively driven to tilt by the power mechanism 30, the rotating bracket 20 can maintain normal tilting and rotational movement relative to the fixed bracket 10, thereby ensuring that the power generated by the propeller 200 can propel the hull 1001 to move. Moreover, when the lifting device 100 is subjected to an impact force, the limiting mechanism 40 releases the restriction on the second connecting structure 60, so that a rotating pair is formed between the second connecting structure 60 and the movable member 41, and a moving pair is formed between the movable member 41 connected to the second connecting structure 60 and the guide member 43, thereby increasing the rotation range of the rotating bracket 20 relative to the fixed bracket 10, and then releasing the impact force to prevent damage to the lifting device 100 and the propeller 200.

[0079] 8 , in some embodiments, the rotating bracket 20 includes a sidewall 21, and the second connecting mechanism 60 is connected to the sidewall 21 of the rotating bracket 20 via the limiting mechanism 40. When the limiting mechanism 40 is released from the power mechanism 30, the second connecting mechanism 60 moves along the sidewall 21 of the rotating bracket 20.

[0080] Furthermore, in certain embodiments, the second connecting mechanism 60 includes a second shaft 61, and the second end 33 of the power mechanism 30 is rotatably connected to the moving member 41 via the second shaft 61. In the second state, the second shaft 61 can move along the first moving direction Y1 relative to the rotating bracket 20 along with the moving member 41, and fall back along the second moving direction Y2. A guide member 43 is provided on the side wall 21 of the rotating bracket 20, and the guide member 43 is used to guide the moving member 41 to move along the first moving direction Y1 relative to the rotating bracket 20, and fall back along the second moving direction Y2. A rotational pair is formed between the second shaft 61 and the moving member 41, and a moving pair is formed between the moving member 41 connected to the second shaft 61 and the guide member 43, and the first moving direction Y1 is opposite to the second moving direction Y2. It can be understood that the setting of the guide member 43 can, on the one hand, limit the moving stroke of the second shaft 61 relative to the rotating bracket 20 along the first moving direction Y1, thereby preventing the rotating bracket 20 from rotating at too large an angle relative to the rotating bracket 20, causing the head of the propeller 200 to rotate into the hull 1001 due to the excessive tilting angle and collide with the hull 1001; on the other hand, it can prevent the second shaft 61 from separating from the power mechanism 30, thereby ensuring the normal operation of the tilting device 100.

[0081] Specifically, in the first state, the second shaft 61 does not move relative to the rotating bracket 20, and at this time, a rotational pair is formed between the second shaft 61 and the moving member 41; in the second state, the second shaft 61 can move relative to the rotating bracket 20 along the first moving direction Y1, and fall back along the second moving direction Y2, so that a rotational pair is formed between the second shaft 61 and the moving member 41, and a moving pair is formed between the moving member 41 connected to the second shaft 61 and the guide member 43. At this time, the second shaft 61 and the moving member 41 together serve as two components forming the rotational pair, and the rotational pair elements can be: the outer surface of the second shaft 61 and the surface on the moving member 41 that contacts the outer surface of the second shaft 61; the moving member 41 and the guide member 43 together serve as two components forming the moving pair, and the moving pair elements can be: the outer surface of the moving member 41 and the surface on the guide member 43 that contacts the outer surface of the moving member 41.

[0082] More specifically, in certain embodiments, when the power mechanism 30 is not subjected to an impact force, the limiting mechanism 40 limits the second shaft 61 and the moving member 41 to maintain a rotational pair, that is, the second shaft 61 can only rotate relative to the rotating bracket 20. If the propeller 200 needs to be tilted, the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the rotating bracket 20, so that the propeller 200 can adjust the tilting angle. At this time, the second shaft 61 can rotate relative to the rotating bracket 20, and the second connecting mechanism 60 can also rotate relative to the rotating bracket 20. When the power mechanism 30 is subjected to an impact force, and the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the limiting mechanism 40 allows a rotation pair to be formed between the second shaft 61 and the movable member 41, and a moving pair to be formed between the movable member 41 connected to the second shaft 61 and the guide member 43, that is, the second shaft 61 can rotate relative to the rotating bracket 20 and move along the first moving direction Y1 or the second moving direction Y2. When the second shaft 61 moves relative to the rotating bracket 20 along the first moving direction Y1, the rotation range of the rotating bracket 20 relative to the rotating bracket 20 increases, thereby releasing the impact force applied to the tilting device 100, that is, releasing the impact force applied to the power mechanism 30, preventing the power mechanism 30 from being damaged, and ensuring the normal operation of the tilting device 100; when the impact force applied to the power mechanism 30 disappears, the second shaft 61 can fall back relative to the rotating bracket 20 along the second moving direction Y2, thereby the limiting mechanism 40 can re-limit the second shaft 61 and the movable member 41 to maintain the rotation pair.

[0083] Continuing with FIG8 , in some embodiments, the guide member 43 is a groove 431 disposed on the sidewall 21 of the rotating bracket 20, with at least a portion of the movable member 41 located within the groove 431. Specifically, one end of the second shaft 61 passes through the movable member 41 and moves along with the movable member 41 within the groove 431 relative to the rotating bracket 20 in the first movement direction Y1, or falls back relative to the rotating bracket 20 in the second movement direction Y2. The guide member 43 is a groove 431 disposed on the sidewall 21 of the rotating bracket 20, which enables the tilting device 100 to guide the second shaft 61 without requiring additional structural components, thereby simplifying the installation steps of the tilting device 100.

[0084] In other embodiments, the guide member 43 is mounted on the side wall 21 of the rotating bracket 20, and the guide member 43 is provided with a groove 431, and at least a portion of the movable member 41 is located in the groove 431. Specifically, one end of the second shaft 61 is provided with the movable member 41 and moves along the first moving direction Y1 relative to the rotating bracket 20 in the groove 431 together with the movable member 41, or falls back along the second moving direction Y2 relative to the rotating bracket 20. In some embodiments, the guide member 43 and the side wall 21 of the rotating bracket 20 can be connected by a non-detachable connection method such as bonding, welding or integral molding, so as to prevent the guide member 43 from falling off when the movable member 41 moves relative to the rotating bracket 20, thereby ensuring the working stability of the tilting device 100. In other embodiments, the guide member 43 and the side wall 21 of the rotating bracket 20 can be connected by a detachable connection method such as a threaded connection or a snap connection, so that when the guide member 43 is damaged (e.g., due to collision wear or corrosion, etc.), it can be easily removed and replaced.

[0085] It is understood that in some embodiments, the second shaft 61 may be provided with a bushing or bearing (not shown), which is mounted on the portion of the second shaft 61 that extends into the groove 431 and is movable within the groove 431. The provision of the bushing or bearing can ensure the stability of the movement of the second shaft 61 relative to the rotating bracket 20, reducing or even preventing the second shaft 61 from becoming stuck within the groove 431.

[0086] Referring to Figures 8 and 9, in some embodiments, along the moving direction of the moving member 41, the moving member 41 includes a first end 411 and a second end 413 opposite each other, and the first end 411 of the moving member 41 is provided with a mating portion 4111. The limiting mechanism 40 further includes a limiting member 45. In a first state, the limiting member 45 abuts against the mating portion 4111; in a second state, the limiting member 45 is separated from the mating portion 4111. It should be noted that in some embodiments, the mating portion 4111 can also be provided at any position between the first end 411 of the moving member 41 and the second end 413 of the moving member 41.

[0087] Specifically, in some embodiments, along the moving direction of the moving member 41, that is, along the first moving direction Y1 or the second moving direction Y2, the moving member 41 includes an opposite end 411 and a second end 413. The first moving direction Y1 is the direction in which the second end 413 of the moving member 41 points to the first end 411 of the moving member 41, and the second moving direction Y2 is the direction in which the first end 411 of the moving member 41 points to the second end 413 of the moving member 41. When the limiting mechanism 40 is in the first state, the limiting member 45 can interfere with the matching portion 4111, thereby, the limiting member 45 can apply a force to the second shaft 61 through the moving member 41, thereby limiting the second shaft 61 and the moving member 41 to maintain in a rotation pair; when the limiting mechanism 40 is in the second state, the limiting member 45 is separated from the matching portion 4111. At this time, the limiting member 45 has no force on the second shaft 61, thereby allowing a rotation pair to be formed between the second shaft 61 and the moving member 41, and a moving pair to be formed between the moving member 41 connected to the second shaft 61 and the guide member 43, thereby, the second shaft 61 and the moving member 41 can move together along the first moving direction Y1 or the second moving direction Y2, thereby increasing the rotation range of the rotating bracket 20 relative to the rotating bracket 20, releasing the impact force on the tilting device 100, that is, releasing the impact force on the power mechanism 30, thereby preventing the power mechanism 30 from being damaged, and ensuring the normal operation of the tilting device 100.

[0088] Further, referring to Figures 8 and 9 , in some embodiments, the limiting member 45 includes a limiting rod 451 and a protrusion 453. One end of the limiting rod 451 is rotatably connected to the rotating bracket 20, and the protrusion 453 extends from one side of the limiting rod 451 toward the guide member 43. In a first state, the protrusion 453 penetrates the guide member 43 and contacts the mating portion 4111. In a second state, the limiting rod 451 rotates relative to the rotating bracket 20, causing the protrusion 453 to disengage from the mating portion 4111. It should be noted that in some embodiments, the contact between the protrusion 453 and the mating portion 4111 can be point contact, line contact, or surface contact.

[0089] Specifically, in some embodiments, a rotating shaft (not shown) may be provided on the rotating bracket 20, and one end of the limiting rod 451 is sleeved on the rotating shaft and can rotate relative to the rotating bracket 20. The protrusion 453 extends from the side of the limiting rod 451 facing the guide member 43 in the direction of the guide member 43, and can extend into the guide member 43 to interfere with the matching portion 4111. Thus, when the limiting mechanism 40 is in the first state, the protrusion 453 can extend into the guide member 43 and interfere with the matching portion 4111 to limit the second shaft 61 and the moving member 41 to maintain a rotating pair, that is, to limit the second shaft 61 to be able to rotate only relative to the rotating bracket 20; when the power mechanism 30 is subjected to an impact force, and the impact force on the power mechanism 30 is greater than the force of the limiting mechanism 40, the limiting rod 451 can rotate relative to the rotating bracket 20, so that the limiting mechanism 40 is changed from the first state to the rotation pair. When it changes to the second state, the protrusion 453 is released from contact with the matching portion 4111, that is, the protrusion 453 releases the restriction on the matching portion 4111, so that a moving pair is formed between the moving member 41 connected to the second shaft 61 and the guide member 43, and a rotating axis is formed between the second shaft 61 and the moving member 41, that is, the second shaft 61 can rotate and move relative to the rotating bracket 20. Therefore, when the second shaft 61 moves relative to the rotating bracket 20 along the first moving direction Y1, the rotation range of the rotating bracket 20 relative to the rotating bracket 20 is increased, thereby releasing the impact force on the power mechanism 30, preventing damage to the power mechanism 30, and ensuring the normal operation of the tilting device 100.

[0090] Please refer to Figures 8 to 10. In some embodiments, the mating portion 4111 includes a first end 4113 and a second end 4115 relative to each other. The mating portion 4111 is tilted and, along the first moving direction Y1, the second end 4115 of the mating portion 4111 is farther away from the first end 411 of the moving member 41 than the first end 4113 of the mating portion 4111.

[0091] Specifically, if along the first moving direction Y1, the distance between the first end 4113 of the mating portion 4111 and the first end 411 of the moving member 41 is equal to the distance between the second end 4115 of the mating portion 4111 and the first end 411 of the moving member 41, then when the moving member 41 moves along the first moving direction Y1, there is a mechanical limit blockage between the protrusion 453 and the mating portion 4111, which makes it difficult to separate the protrusion 453 and the mating portion 4111, and the moving member 41 cannot move along the first moving direction Y1, thereby making it impossible to release the impact force received by the power mechanism 30, thereby affecting the normal operation of the tilting device 100. In this embodiment, the inclined arrangement of the mating portion 4111 can prevent the protruding portion 453 from getting stuck with the mating portion 4111 when the moving member 41 moves along the first moving direction Y1, thereby facilitating the disengagement of the protruding portion 453 from the mating portion 4111, thereby ensuring that a moving pair can be formed between the moving member 41 connected to the second shaft 61 and the guide member 43, and a rotating pair can be formed between the second shaft 61 and the moving member 41, thereby releasing the impact force on the power mechanism 30 and ensuring the normal operation of the tilting device 100. It should be noted that in some embodiments, the mating portion 4111 can be a planar structure, an arcuate structure, a curved structure, etc., which is not limited here.

[0092] Please continue to refer to Figures 8 to 10. In some embodiments, the first end 411 of the moving member 41 and the second end 413 of the moving member 41 are both cambered surfaces. The protrusion 453 includes a first side 4531 and a second side 4533 that are connected. The first side 4531 of the protrusion 453 is used to cooperate with the matching portion 4111 and interfere with it. The second side 4533 of the protrusion 453 is opposite to the moving member 41. The second side 4533 of the protrusion 453 is tilted. Along the first moving direction Y1, the distance between the second side 4533 of the protrusion 453 and the central axis of the moving member 41 gradually increases.

[0093] Specifically, in some embodiments, when the limiting mechanism 40 is in the second state and the moving member 41 moves along the first moving direction Y1, after the first side 4531 of the protrusion 453 is disengaged from the matching portion 4111, the moving member 41 continues to move along the first moving direction Y1. At this time, the connection between the first side 4531 of the protrusion 453 and the second side 4533 of the protrusion 453 can conflict with the side wall of the moving member 41. If the moving member 41 still continues to move along the first moving direction Y1, the protrusion 453 can be completely separated from the moving member 41. In this case, the protrusion 453 is not restricted by the moving member 41, and the first side 4531 of the protrusion 453 and the second side 4533 of the protrusion 453 are always located in the guide member 43. After the impact force exerted on the structure 30 is removed, the moving part 41 can move along the second moving direction Y2 under the action of gravity to return to its original position so that the protrusion 453 can re-match with the matching part 4111. In this case, the second end 413 of the moving part 41 contacts the second side 4533 of the protrusion 453 first. Since the second end 413 of the moving part 41 is an arc surface and the second side 4533 of the protrusion 453 is tilted, the friction between the moving part 41 and the second side 4533 of the protrusion 453 is small, which can facilitate the movement of the moving part 41 along the second moving direction Y2, ensuring that the moving part 41 can return to its original position, that is, the second axis 61 returns to its original position, and then the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the rotating bracket 20.

[0094] Please continue to refer to Figures 8 to 10. In some embodiments, the protrusion 453 also includes a third side 4535. The first side 4531 of the protrusion 453 and the third side 4535 of the protrusion 453 are respectively connected to the opposite ends of the second side 4533 of the protrusion 453, and the third side 4535 of the protrusion 453 never extends into the guide member 43.

[0095] In some embodiments, the stopper 45 is provided with a stopper 459, which extends from the guide member 43 to the guide member 43. In some embodiments, the stopper 45 is provided with a stopper 459, which extends from the guide member 43 to the guide member 43. Among them, when the limiting mechanism 40 is in the first state, the blocking portion 459 can abut against the outer wall of the guide member 45 toward the side of the guide member 45, thereby, the setting of the blocking portion 459 can ensure that the third side 4535 of the protrusion 453 never extends into the guide member 43. In other words, the setting of the blocking portion 459 can ensure that the third side 4535 of the protrusion 453 never extends into the groove 431 of the guide member 43, thereby, in the process of the moving member 41 moving along the second moving direction Y2, the moving member 41 still first contacts the second side 4533 of the protrusion 453, thereby ensuring the normal movement of the moving member 41 along the second moving direction Y2.

[0096] Referring to FIG8 , in some embodiments, the limiting mechanism 40 may further include an adjusting member 49, which is connected to the limiting member 45 and is used to limit the rotation of the limiting member 45 relative to the rotating bracket 20. Specifically, in some embodiments, the setting of the adjusting member 49 can enable the limiting mechanism 40 to maintain the first state. That is, when the power mechanism 30 is not subjected to an impact force or the impact force applied to the power mechanism 30 is less than the force applied by the limiting mechanism 40, the adjusting member 49 is used to keep the limiting mechanism 40 in the first state. When the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the adjusting member 49 allows the limiting mechanism 40 to transition to the second state and can return the limiting mechanism 40 from the second state to the first state.

[0097] Furthermore, in some embodiments, the limiting member 45 includes a first end 455 and a second end 457 opposite to each other. The first end 455 of the limiting member 45 is rotatably connected to the rotating bracket 20 via a rotating shaft. One end of the adjusting member 49 is connected to the second end 457 of the limiting member 45, and the other end of the adjusting member 49 is connected to the rotating bracket 20. The adjusting member 49 is an elastic element.

[0098] Specifically, in some embodiments, the protrusion 453 can be located at any position between the first end 455 of the limiter 45 and the second end 457 of the limiter 45. Among them, the adjustment member 49 can limit the limiter 45 to be fixed relative to the rotating bracket 20 so that the protrusion 453 and the matching portion 4111 remain in conflict. Specifically, the adjustment member 49 can apply a force to the limit rod 451 through the second end 457 of the limiter 45, and the protrusion 453 cooperates with the matching portion 4111 so that the force applied to the limit rod 451 is transmitted to the moving member 41 and the second shaft 61 connected to the moving member 41. Thus, the force of the limiting mechanism 40 is: the adjustment member 49 acts on the second end 457 of the limiter 45, and acts on the power mechanism 30 after passing through the protrusion 453, the matching portion 4111 and the second shaft 61 in sequence.

[0099] In some embodiments, the adjustment member 49 described in the above embodiments includes any one or more of a tension spring, a compression spring, rubber, a gas spring, and a spring.

[0100] Referring to Figures 8 and 9, in some embodiments, the rotating bracket 20 includes a first side 23 and a second side 25 that are opposite to each other, the protrusion 453 faces the first side 23 of the rotating bracket 20, and the first end 455 of the limiting member 45 can be positioned at any position between the first side 23 of the rotating bracket 20 and the second side 25 of the rotating bracket 20. If the adjusting member 49 is a tension spring, one end of the adjusting member 49 is connected to the second end 457 of the limiting member 45, and the other end of the adjusting member 49 is connected to a position of the rotating bracket 20 near the first side 23 of the rotating bracket 20. That is, the distance between the other end of the adjusting member 49 and the first side 23 of the rotating bracket 20 is less than the distance between the other end of the adjusting member 49 and the second side 25 of the rotating bracket 20. Specifically, the adjusting member 49 can always apply an elastic tension to the limiting member 45. This elastic tension can keep the protrusion 453 in contact with the mating portion 4111, thereby maintaining the second shaft 61 and the moving member 41 in a rotational pair. When the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the protrusion 453 and the matching portion 4111 are released from contact. At this time, the limiting rod 451 can rotate relative to the rotating bracket 20 in a direction away from the guide member 43, and the adjusting member 49 can be stretched to increase the elastic tension applied by the tension spring to the limiting member 45. Therefore, when the impact force applied to the power mechanism 30 is cancelled, the moving member 41 returns to the initial position along the second moving direction Y2, and the limiting member 45 again keeps the protrusion 453 in contact with the matching portion 4111 under the action of the elastic tension.

[0101] In other embodiments, when the adjustment member 49 is a compression spring, one end of the compression spring is connected to the second end 457 of the limiting member 45, and the other end of the adjustment member 49 is connected to a position of the rotating bracket 20 near the second side 25 of the rotating bracket 20. That is, the distance between the other end of the adjustment member 49 and the second side 25 of the rotating bracket 20 is smaller than the distance between the other end of the adjustment member 49 and the first side 23 of the rotating bracket 20. Specifically, the adjustment member 49 can always apply elastic pressure to the limiting member 45, and the elastic pressure can keep the protrusion 453 in contact with the mating portion 4111, thereby maintaining the second shaft 61 and the moving member 41 in a rotational pair. When the impact force applied to the power mechanism 30 is greater than the force applied by the limiting mechanism 40, the protrusion 453 and the matching portion 4111 are released from contact. At this time, the limiting rod 451 can rotate relative to the rotating bracket 20 in a direction away from the guide member 43, and the adjusting member 49 can be compressed to increase the elastic pressure applied by the compression spring to the limiting member 45. Therefore, when the impact force applied to the power mechanism 30 is cancelled, the moving member 41 returns to its initial position along the second moving direction Y2, and the limiting member 45, under the action of the elastic pressure, again keeps the protrusion 453 in contact with the matching portion 4111.

[0102] Referring to Figure 11, in other embodiments, the first end 455 of the limiting member 45 is rotatably connected to the rotating bracket 20 via the adjusting member 49, and the second end 457 of the limiting member 45 is suspended. Specifically, the adjusting member 49 can apply a force to the limiting rod 451 through the first end 455 of the limiting member 45, and the protrusion 453 cooperates with the matching portion 4111 so that the force applied to the limiting rod 451 is transmitted to the moving member 41 and the second shaft 61 connected to the moving member 41. Thus, the force of the limiting mechanism 40 is: the force of the adjusting member 49 acting on the first end 455 of the limiting member 45, and then acting on the power mechanism 30 after passing through the protrusion 453, the matching portion 4111 and the second shaft 61 in sequence. It should be noted that in some embodiments, the adjusting member 49 described in the above embodiments includes any one of a torsion bar, a torsion spring and a one-way damping shaft.

[0103] In some embodiments, the limiting mechanism 40 further includes a restricting member (not shown), one end of which is always connected to the moving member 41, and the other end of which is connected to the guide member 43 or the rotating bracket 20. The restricting member is used to restrict the movement of the moving member 41 relative to the rotating bracket 20 along the first moving direction Y1, and the restricting member is an elastic element. Specifically, in some embodiments, the restricting member described in the above embodiments includes any one or more of a tension spring, a compression spring, rubber, a gas spring, and a spring.

[0104] In some embodiments, when the elastic element is a tension spring, one end of the tension spring is connected to the second end 413 of the movable member 41, and the other end of the tension spring is connected to the guide member 43 or the rotating bracket 20. Specifically, the tension spring can always apply an elastic tension to the movable member 41, and the elastic tension can limit the movement of the movable member 41 relative to the rotating bracket 20, so that the second shaft 61 and the movable member 41 are maintained in a rotation pair. In the case where the impact force applied to the power mechanism 30 is greater than the force of the limiting mechanism 40, the movable member 41 can move relative to the rotating bracket 20 along the first moving direction Y1, and the tension spring can be stretched so that the elastic tension applied by the tension spring to the movable member 41 becomes larger. Thus, when the impact force applied to the power mechanism 30 is canceled, the movable member 41 can return to its initial position under the action of the elastic tension, so that the second shaft 61 and the movable member 41 are maintained in a rotation pair.

[0105] In other embodiments, when the elastic element is a compression spring, one end of the compression spring is connected to the first end 411 of the moving member 41, and the other end of the compression spring is connected to the guide member 43 or the rotating bracket 20. Specifically, the compression spring can always apply elastic pressure to the moving member 41, and the elastic pressure can limit the movement of the moving member 41 relative to the rotating bracket 20, so that the second shaft 61 and the moving member 41 are maintained in a rotation pair. When the impact force received by the power mechanism 30 is greater than the force of the limiting mechanism 40, the moving member 41 can move along the first moving direction Y1 relative to the rotating bracket 20, and the compression spring can be stretched so that the elastic pressure applied by the compression spring to the moving member 41 becomes larger. Thus, when the impact force received by the power mechanism 30 is revoked, the moving member 41 can return to the initial position under the action of the elastic pressure, so that the second shaft 61 and the moving member 41 are maintained in a rotation pair.

[0106] Referring to Figures 8 or 11 , in some embodiments, the tilting device 100 further includes a third shaft 70, through which the rotating bracket 20 is rotatably connected to the fixed bracket 10. This enables, when the drive assembly 37 drives the telescopic rod 353 of the telescopic assembly 35 to extend or retract relative to the main body 351, the telescopic rod 353 can propel the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby achieving the tilting of the rotating bracket 20. In some embodiments, the third shaft 70 can be provided with a bushing or bearing, disposed at the connection between the third shaft 70 and the fixed bracket 10. The provision of the bushing or bearing can ensure the stability of the rotation of the third shaft 70 relative to the fixed bracket 10, reducing or even preventing the third shaft 70 from getting stuck during rotation within the fixed bracket 10.

[0107] Referring to FIG. 12 , an embodiment of the present application provides a propeller 200. The propeller 200 includes a propeller body 210 and a tilting device 100 as described in any of the aforementioned embodiments. The rotating bracket 20 of the tilting device 100 is connected to the propeller body 210, thereby enabling the propeller 200 to switch between a tilting state and a propulsion state under the action of the tilting device 100. The propeller 200 includes, but is not limited to, outboard motors, propellers, and trolling motors, among other water propulsion equipment.

[0108] As an embodiment, the propeller body 210 is provided with a steering shaft (not shown in the figure), which is perpendicular to the rotation and tilting axis of the rotating bracket 20. The propulsion body 210 rotates with the rotating bracket 20 via the steering shaft, so that the propeller 200 can be turned relative to the fixed bracket 10.

[0109] In certain embodiments, the propeller body 210 may include a frame 211, a motor 213, and a propeller 215. The frame 211 is connected to the rotating bracket 20 of the tilting device 100. In one embodiment, the frame 211 is rotatably connected to the rotating bracket 20 via a steering shaft, and the frame 211 can tilt and rotate relative to the fixed bracket 10 along with the rotating bracket 20. The motor 213 is mounted on the frame 211 and is connected to the propeller 215, driving the propeller 215 to rotate and provide propulsion.

[0110] In the propeller 200 of the present application, the limiting mechanism 40 is configured on at least one of the rotating bracket 20 and the fixed bracket 10. The limiting mechanism 40 has a first state and a second state. In the first state, the limiting mechanism 40 acts on the power mechanism 30 to allow the power mechanism 30 to drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10. In the second state, the limiting mechanism 40 is used to release the action with the power mechanism 30 to stop the power mechanism 30 from driving the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby preventing the impact force from causing damage to the power mechanism 30, thereby ensuring the normal operation of the tilting device 100.

[0111] Please refer to FIG. 12 . An embodiment of the present application provides a movable device 1000 in water area, including the propeller 200 as described above.

[0112] Specifically, in certain embodiments, when the propeller 200 is fixed to the movable device 1000 in the water area via the lifting device 100 and the propeller body 210 is in a propulsion state, the movable device 1000 in the water area can move on the water under the push of the propeller body 210. When the propeller 200 needs to leave the water surface after use to avoid prolonged immersion in water, or when it needs to avoid obstacles in the water during propulsion, the propeller 30 is lifted. In addition, when the impact force on the propeller 200 is too large, the limiting mechanism 40 can be released from the power mechanism 30 to stop the power mechanism 30 from driving the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby preventing the impact force from damaging the power mechanism 30, thereby ensuring the normal operation of the lifting device 100 and improving the safety factor of the movable device 1000 in the water area.

[0113] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are contradictory.

[0114] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, for example, two or three, unless otherwise specifically defined.

[0115] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A warping device, wherein: include: Fixed bracket; A rotating bracket, the rotating bracket is rotatably mounted on the fixed bracket; A power mechanism, the power mechanism is arranged between the fixed support and the rotating support; and a limiting mechanism, the limiting mechanism being arranged on at least one of the rotating bracket and the fixed bracket, the limiting mechanism having a first state and a second state, in the first state, the limiting mechanism acts on the power mechanism to allow the power mechanism to drive the rotating bracket to rotate and tilt relative to the fixed bracket, and in the second state, the limiting mechanism is used to release the effect on the power mechanism to stop the power mechanism from driving the rotating bracket to rotate relative to the fixed bracket; When the impact force applied to the power mechanism is greater than the acting force of the limiting mechanism, the limiting mechanism changes from the first state to the second state.

2. The warping device according to claim 1, wherein: After the impact force on the power mechanism is cancelled, the limiting mechanism can be transformed from the second state to the first state.

3. The warping device according to claim 1, wherein: The power mechanism comprises a first end and a second end opposite to each other, a first connection mechanism is arranged between the first end of the power mechanism and the fixed bracket, and a second connection mechanism is arranged between the second end of the power mechanism and the rotating bracket, and the power mechanism drives the rotating bracket to rotate and warp relative to the fixed bracket via the first connection mechanism and the second connection mechanism; The limiting mechanism comprises a slidingly matched moving member and a guide member, the moving member is rotationally connected to at least one of the first connecting mechanism and the second connecting mechanism, and the limiting mechanism acts on at least one of the first connecting mechanism and the second connecting mechanism to limit the first connecting mechanism and the second connecting mechanism to maintain a rotation pair with the moving member in the first state; In the second state, at least one of the first connection mechanism and the second connection mechanism is allowed to form a rotation pair with the moving member, and the moving member connected to at least one of the first connection mechanism and the second connection mechanism is allowed to form a translation pair with the guide member.

4. The tilting device according to claim 3, wherein: The power mechanism includes a telescopic component, which includes a main body and a telescopic rod. The telescopic rod is telescopically installed on the main body. The first connecting mechanism is arranged between the main body and the fixed bracket, and a rotation pair is formed between the first connecting mechanism and the main body. The second connecting mechanism is arranged between the telescopic rod and the rotating bracket, and a rotation pair is formed between the second connecting mechanism and the telescopic rod.

5. The warping device according to claim 4, wherein: The power mechanism further comprises a driving assembly, and the driving assembly is used for driving the telescopic rod to extend and retract relative to the main body.

6. The tilting device according to claim 3, wherein: The limiting mechanism acts on the first connecting mechanism. In the second state, the limiting mechanism is used to allow a rotation pair to be formed between the first connecting mechanism and the moving member, and a moving pair to be formed between the moving member connected to the first connecting mechanism and the guide member.

7. The tilting device according to claim 6, wherein: The first connecting mechanism comprises: A first shaft, a first end of the power mechanism is rotatably connected to the moving member through the first shaft, in the second state, the first shaft can move along the first direction relative to the fixed bracket with the moving member, and fall back along the second direction, the guide member is arranged on the side wall of the fixed bracket, the guide member is used to guide the moving member to move along the first direction relative to the fixed bracket, and fall back along the second direction, a rotating pair is formed between the first shaft and the moving member, and a moving pair is formed between the moving member connected to the first shaft and the guide member, and the first direction is opposite to the second direction.

8. The tilting device according to claim 7, wherein: The guiding member is a groove arranged on the side wall of the fixing bracket, and at least a part of the moving member is located in the groove.

9. The tilting device according to claim 7, wherein: The guide member is installed on the side wall of the fixed bracket, and the guide member is provided with a groove, and at least a part of the moving member is located in the groove.

10. The warping device according to claim 7, wherein: Along the moving direction of the moving member, the moving member includes a first end and a second end opposite to each other, the first end of the moving member is provided with a matching portion, and the limiting mechanism also includes a limiting member; in the first state, the limiting member is in conflict with the matching portion; in the second state, the limiting member is separated from the matching portion.

11. The warping device according to claim 10, wherein: The limiting member includes a limiting rod and a protruding portion, one end of the limiting rod is rotatably connected to the fixed bracket, and the protruding portion extends from one side of the limiting rod toward the direction of the guide member; in the first state, the protruding portion passes through the guide member and contacts the matching portion; in the second state, the limiting rod rotates relative to the fixed bracket and drives the protruding portion to release contact with the matching portion.

12. The tilting device according to claim 11, wherein: The matching portion includes a first end and a second end opposite to each other. The matching portion is tilted. Along the first direction, the second end of the matching portion is farther away from the first end of the moving member than the first end of the matching portion.

13. The tilting device according to claim 11, wherein: The first end of the moving part and the second end of the moving part are both arc surfaces; the protrusion includes a first side and a second side that are connected to each other, the first side of the protrusion is used to cooperate and interfere with the matching part, the second side of the protrusion is opposite to the moving part, and the second side of the protrusion is inclined, and along the first direction, the distance between the second side of the protrusion and the central axis of the moving part gradually increases.

14. The tilting device according to claim 13, wherein: The protrusion also includes a third side. The first side of the protrusion and the third side of the protrusion are respectively connected to two opposite ends of the second side of the protrusion, and the third side of the protrusion never extends into the guide member.

15. The tilting device according to claim 11, wherein: The limiting mechanism further includes an adjusting member, which is connected to the limiting member and is used to limit the rotation of the limiting member relative to the fixing bracket.

16. The tilting device according to claim 15, wherein: The limiting member includes a first end and a second end opposite to each other, and the first end of the limiting member is rotatably connected to the fixed bracket via a rotating shaft; one end of the adjusting member is connected to the second end of the limiting member, and the other end of the adjusting member is connected to the fixed bracket, and the adjusting member is an elastic element.

17. The tilting device according to claim 16, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

18. The tilting device according to claim 15, wherein: The limiting member comprises a first end and a second end opposite to each other. The first end of the limiting member is rotatably connected to the fixing bracket through the adjusting member, and the second end of the limiting member is suspended.

19. The tilting device according to claim 18, wherein: The adjusting member includes any one of a torsion bar, a torsion spring and a one-way damping shaft.

20. The tilting device according to claim 7, wherein: The limiting mechanism also includes a limiting member, one end of which is always connected to the movable member, and the other end of which is connected to the guide member or the fixed bracket. The limiting member is used to limit the movable member from moving relative to the fixed bracket along the first direction, and the limiting member is an elastic element.

21. The tilting device according to claim 20, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

22. The warping device according to any one of claims 6 to 21, wherein: The second connection mechanism includes a second shaft, and the second end of the power mechanism is rotatably connected to the rotating bracket through the second shaft.

23. The tilting device according to claim 22, wherein: The tilting device also includes a third shaft, and the rotating bracket is rotatably connected to the fixed bracket via the third shaft.

24. The tilting device according to claim 3, wherein: The fixed bracket includes a first end and a second end opposite to each other, and the rotating bracket is rotatably connected to the second end of the fixed bracket; the limiting mechanism acts on the second connecting mechanism, and in the second state, the limiting mechanism is used to allow a rotating pair to be formed between the second connecting mechanism and the moving member, and a moving pair to be formed between the moving member connected to the second connecting mechanism and the guide member.

25. The tilting device according to claim 24, wherein: The rotating bracket includes a side wall, and the second connecting mechanism is connected to the side wall of the rotating bracket through the limiting mechanism; when the limiting mechanism releases the effect of the power mechanism, the second connecting mechanism moves along the side wall of the rotating bracket.

26. The tilting device according to claim 25, wherein: The second connecting mechanism comprises: The second shaft, the second end of the power mechanism is rotatably connected to the moving member through the second shaft, in the second state, the second shaft can move along the first moving direction relative to the rotating bracket, and fall back along the second moving direction together with the moving member, the guide member is arranged on the side wall of the rotating bracket, the guide member is used to guide the moving member to move along the first moving direction relative to the rotating bracket, and fall back along the second moving direction, a rotating pair is formed between the second shaft and the moving member, and a moving pair is formed between the moving member connected to the second shaft and the guide member, and the first moving direction and the second moving direction are opposite.

27. The tilting device according to claim 26, wherein: The guiding member is a groove arranged on the side wall of the rotating bracket, and at least a part of the moving member is located in the groove.

28. The tilting device according to claim 26, wherein: The guide member is installed on the side wall of the rotating bracket, and the guide member is provided with a groove, and at least a part of the moving member is located in the groove.

29. The tilting device according to claim 26, wherein: Along the moving direction of the moving member, the moving member includes a first end and a second end opposite to each other, the first end of the moving member is provided with a matching portion, and the limiting mechanism also includes a limiting member; in the first state, the limiting member is in conflict with the matching portion; in the second state, the limiting member is separated from the matching portion.

30. The tilting device according to claim 29, wherein: The limiting member includes a limiting rod and a protruding portion, one end of the limiting rod is rotatably connected to the rotating bracket, and the protruding portion extends from one side of the limiting rod toward the direction of the guide member; in the first state, the protruding portion passes through the guide member and contacts the matching portion; in the second state, the limiting rod rotates relative to the rotating bracket and drives the protruding portion to release contact with the matching portion.

31. The tilting device according to claim 30, wherein: The matching portion includes a first end and a second end opposite to each other. The matching portion is tilted and along the first moving direction, the second end of the matching portion is farther away from the first end of the moving member than the first end of the matching portion.

32. The tilting device according to claim 30, wherein: The first end of the moving part and the second end of the moving part are arc surfaces; the protrusion includes a first side and a second side that are connected to each other, the first side of the protrusion is used to cooperate and interfere with the matching part, the second side of the protrusion is opposite to the moving part, and the second side of the protrusion is inclined. Along the first moving direction, the distance between the second side of the protrusion and the central axis of the moving part gradually increases.

33. The tilting device according to claim 32, wherein: The protrusion also includes a third side. The first side of the protrusion and the third side of the protrusion are respectively connected to two opposite ends of the second side of the protrusion, and the third side of the protrusion never extends into the guide member.

34. The tilting device according to claim 30, wherein: The limiting mechanism further includes an adjusting member, which is connected to the limiting member and is used to limit the rotation of the limiting member relative to the rotating bracket.

35. The tilting device according to claim 34, wherein: The limiting member includes a first end and a second end opposite to each other, and the first end of the limiting member is rotatably connected to the rotating bracket via a rotating shaft; one end of the adjusting member is connected to the second end of the limiting rod, and the other end of the adjusting member is connected to the rotating bracket, and the adjusting member is an elastic element.

36. The tilting device according to claim 35, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

37. The tilting device according to claim 34, wherein: The limiting member comprises a first end and a second end opposite to each other. The first end of the limiting member is rotatably connected to the rotating bracket through the adjusting member, and the second end of the limiting member is suspended.

38. The tilting device according to claim 37, wherein: The adjusting member includes any one of a torsion bar, a torsion spring and a one-way damping shaft.

39. The tilting device according to claim 26, wherein: The limiting mechanism also includes a limiting member, one end of which is always connected to the moving member, and the other end of which is connected to the guide member or the rotating bracket. The limiting member is used to limit the movement of the moving member relative to the rotating bracket along the first moving direction, and the limiting member is an elastic element.

40. The tilting device according to claim 39, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

41. The tilting device according to any one of claims 23 to 40, wherein: The first connecting mechanism includes a first shaft, and the first end of the power mechanism is rotatably connected to the fixed bracket through the first shaft.

42. The tilting device according to claim 41, wherein: The tilting device also includes a third shaft, and the rotating bracket is rotatably connected to the fixed bracket via the third shaft.

43. A propeller, wherein: include: Thruster body; and The tilting device according to any one of claims 1 to 42 is connected to the propeller body.

44. A movable device in water area, wherein: include: The thruster of claim 43.

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