Lifting devices, thrusters and movable equipment in water areas

Abstract

A lifting device (100), a propeller (200) and a movable device for use in water areas (1000). The lifting device (100) comprises a fixed support (10), a rotating support (20), a power mechanism (30) and a limiting mechanism (40). In a second state, the limiting mechanism (40) is used to release the effect of the power mechanism (30) to stop the power mechanism (30) from driving the rotating support (20) to rotate relative to the fixed support (10).

Description

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] At present, the propeller can be lifted by the power mechanism in the lifting device. When the propeller is subjected to impact force, the impact force can be transmitted to the power mechanism. However, since the power mechanism is connected internally by a rigid structure, when the impact force on the power mechanism is large, the internal structure of the power mechanism is easily damaged by the impact force and cannot work normally, thus causing the lifting failure. Summary of the invention

[0003] The embodiments of the present application provide a lifting device, a propeller and a movable device in water areas.

[0004] 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 action 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.

[0005] 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 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.

[0006] The embodiment of the present application provides a movable device for water area, and the movable device for water area 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 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] In the lifting device, thruster 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.

[0008] 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 apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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:

[0010] Figure 1 is a schematic diagram of the three-dimensional structure of the warping device in some embodiments of the present application;

[0011] Figure 2 yes Figure 1 A three-dimensional exploded schematic diagram of the warping device shown;

[0012] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the fixed bracket and the limiting mechanism in the warping device shown in the first state;

[0013] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the fixed bracket and the limiting mechanism in the warping device shown in the second state;

[0014] Figure 5 yes Figure 3 The enlarged schematic diagram of point V in the middle;

[0015] Figure 6 is a schematic diagram of the three-dimensional structure of the fixed bracket and the limiting mechanism in the first state in some other embodiments of the tilting device of the present application;

[0016] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure of the fixed bracket and the limiting mechanism in the warping device shown in the second state;

[0017] Figure 8 is a schematic structural diagram of a warping device according to some other embodiments of the present application;

[0018] Fig. 9 yes Figure 8 A three-dimensional schematic diagram of a part of the structure of the warping device shown;

[0019] Fig.10 yes Fig. 9 The enlarged schematic diagram of the middle X;

[0020] Fig.11 is a schematic structural diagram of a limiting mechanism in a warping device according to some other embodiments of the present application;

[0021] Fig.12 It is a schematic diagram of the structure of a movable device in water area according to certain embodiments of the present application. DETAILED DESCRIPTION

[0022] 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.

[0023] In addition, the embodiments of the present application described below in conjunction with the drawings are exemplary and are only used to explain the embodiments of the present application and should not be construed as limiting the present application.

[0024] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature 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. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] See also 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 received by 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 received by the power mechanism 30 is mainly caused by the propeller 200 ( Fig.10 (As shown in the figure), during the propulsion process, the impact force generated by the obstruction in the propulsion direction is fed back to the power mechanism 30 of the lift device 100 along the entire power transmission path from the impacted position to the lift device 100.

[0026] See also Figure 1 and Figure 2In some embodiments, the fixed bracket 10 may include two side walls 19 of the two fixed brackets 10, the rotating bracket 20 and the power mechanism 30 are both arranged between the side walls 19 of the two fixed brackets 10, and when the limiting mechanism 40 is in the 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 the second state, the power mechanism 30 stops driving the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10. It can be understood that in some embodiments, 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 the impact force, thereby releasing the impact force on the rotating bracket 20 and preventing the power mechanism 30, the rotating bracket 20 and the fixed bracket 10 from being damaged by the impact force.

[0027] 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 arrangement of the connector 101 can improve the stability of the installation of the tilting device 100, prevent 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 bracket 10 can be connected by one or more connection methods such as bolt connection, snap connection, bonding or welding.

[0028] See also Figure 1 and Figure 2 In some embodiments, the limiting mechanism 40 can be configured on the fixed bracket 10, and the rotating bracket 20 is rotationally connected to the power mechanism 30. Therefore, 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 8In other embodiments, the limiting mechanism 40 may be disposed on the rotating bracket 20, and the fixed bracket 10 is rotationally connected to the power mechanism 30, whereby, 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 impacted by the impact force. Please refer to Figure 1 , Figure 2 and Figure 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 limiting mechanisms 40, and the two limiting mechanisms 40 respectively cooperate with the opposite ends of the power mechanism 30, thereby, when the limiting mechanism 40 is in the 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 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, 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.

[0029] In some embodiments, the limiting mechanism 40 can be switched between the first state and the second state, thereby preventing the impact force from damaging the power mechanism 30 and ensuring the normal operation of the tilting device 100; on the other hand, the limiting mechanism 40 can be switched from the second state to the first state, thereby ensuring that the power mechanism 30 can still operate normally after the impact force is removed. In addition, no manual intervention is required during the transition of the limiting mechanism 40 from the second state to the first state, and no parts are damaged, which is convenient to use and reduces the maintenance cost of the tilting device 100. The manual intervention required in this embodiment means that there is no need to manually disassemble and maintain the tilting device 100 or manually use tools to restore the power mechanism to a state where it can normally drive the rotating bracket 20 to tilt.

[0030] 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 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 lifting device 100 works normally (the power mechanism 30 is not subjected to 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 exerts force on the power mechanism 30. At this time, the power mechanism 30 can drive the rotating bracket 20 to rotate relative to the fixed bracket 10 for lifting; 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 lifting 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 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 impacted 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.

[0031] See also Figure 1 and Figure 2 In some embodiments, the limiting mechanism 40 includes a slidingly matched moving member 41 and a guide member 43, and the moving member 41 is rotationally connected to at least one of the first connecting mechanism 50 and the second connecting mechanism 60. The power mechanism 30 includes a first end 31 and a second end 33 opposite to each other, and the first connecting mechanism 50 is arranged between the first end 31 of the power mechanism 30 and the fixed bracket 10, and the second connecting mechanism 60 is arranged 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 through 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, so that in the first state, the first connecting mechanism 50 and the second connecting mechanism 60 are restricted to maintain a rotation pair with the moving member 41; in the second state, at least one of the first connecting mechanism 50 and the second connecting mechanism 60 is allowed to form a rotation pair with the moving member 41, and a moving pair is allowed to be 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.

[0032] Among them, a kinematic pair is a movable connection between two components that are in direct contact and can produce relative rotation. The points, lines, surfaces and other elements on the two components that participate in the contact and constitute the kinematic pair are called kinematic pair elements. It should be noted that in some embodiments, the kinematic pair includes but is not limited to a translation pair, a rotation pair and a screw pair.

[0033] Please continue reading Figure 1 and Figure 2 In some embodiments, the limiting mechanism 40 cooperates with the first connecting mechanism 50, so that 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 rotation 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 rotation 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 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 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 rotation 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 Figure 1 , Figure 2 and Figure 8In some further embodiments, the limiting mechanism 40 may include two limiting mechanisms 40, which respectively cooperate with the first connection mechanism 50 and the second connection mechanism 60. Thus, when the limiting mechanism 40 is in the first state, the limiting mechanism 40 cooperating with the first connection mechanism 50 can limit the first connection mechanism 50 and the moving member 41 to maintain in a rotation pair (the first connection mechanism 50 rotates relative to the moving member 41), and the limiting mechanism 40 cooperating with the second connection mechanism 60 can limit the second connection mechanism 60 and the moving member 41 to maintain in a rotation pair (the second connection 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 connection 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 connection mechanism 60 and the guide member 43 on the rotating bracket 20, that is, the moving member 41 connected to the first connection mechanism 50 will not move along the fixed bracket 10. The guide member 43 moves, and the moving 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 coordinated 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 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 connected to the first connecting mechanism 50 will move along the guide member 43 on the fixed bracket 10), and the limiting mechanism 40 coordinated 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 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 connected to the second connecting mechanism 60 will move along the guide member 43 on the rotating bracket 20).

[0034] See also Figure 1 and Figure 2 In some embodiments, the power mechanism 30 may include a telescopic assembly 35, the telescopic assembly 35 includes a main body 351 and a telescopic rod 353, the telescopic rod 353 is telescopically mounted on the main body 351, the first connecting mechanism 50 is disposed between the main body 351 and the fixed bracket 10, and the 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.

[0035] 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 via 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 via 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.

[0036] Understandably, see Figure 2 and Fig.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 drive the hull 1001 of the movable device 1000 in the water area to move. The tilted state means that the propeller 200 (part of the structure) is tilted up to avoid obstacles or leave the water surface. It should be noted that when the propeller 200 is tilted up 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 collision between the propeller 200 and 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 easily deformed and damaged under 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 through the second connecting mechanism 60. When the propeller 200 is about to be subjected to an 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, so that the propeller 200 is transformed into a tilting state to avoid obstacles 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 obstacles and avoid 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. 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.

[0037] Specifically, the impact force on the propeller 200 may be: the impact force on the propeller 200 when it collides with an obstacle; the impact force on the propeller 200 may also be: the impact force on the propeller 200 when it 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 lifting device 100 can drive the propeller 200 to achieve lifting, thereby preventing the propeller 200 from being immersed in water for a long time, resulting in damage to the propeller 200 or shortening its life.

[0038] Furthermore, in some embodiments, the rotating bracket is connected to the main body of the propeller, so that when the power mechanism drives the rotating bracket to rotate and tilt relative to the fixed bracket, the main body of the propeller can tilt together with the rotating bracket. Therefore, when the main body of the propeller is subjected to an impact force, the impact force can be transmitted to the power mechanism and the fixed bracket through the rotating bracket. Since the internal part of the tilting device is connected by a rigid structure, the internal structure of the tilting device (such as the power mechanism) will be damaged under the impact force, thereby causing the tilting failure and affecting the normal operation of the tilting device and the propeller. 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 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. 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.

[0039] 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 the moving member 41 connected to at least one of the first connecting mechanism 50 and the second connecting mechanism 60 forms a moving pair with the guide member 43, the rotation range of the rotating bracket 20 relative to the fixed bracket 10 is increased, so that the impact force can be released. However, when the impact force on the tilting device 100 disappears, if the first connecting mechanism 50 still forms a rotation pair with the moving member 41, and the moving member 41 connected to the first connecting mechanism 50 forms a moving pair with the guide member 43, and / or the second connecting mechanism 60 still forms a rotation pair with the moving member 41, and the moving member 41 connected to the second connecting mechanism 60 forms a moving pair with the guide member 43, the driving force of the power mechanism 30 cannot be stably transmitted to the rotating bracket 20, so that the power mechanism 30 cannot drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, affecting the normal operation of the tilting device 100. Therefore, in some embodiments, after the impact force exerted on the power mechanism 30 is cancelled, the limiting mechanism 40 can be changed from the second state to the first state, thereby, the limiting mechanism 40 can re-limit the first connecting mechanism 50 and the second connecting mechanism 60 to maintain the rotating pair with the moving part 41. At this time, the power mechanism 30 can normally drive the rotating bracket 20 to rotate and warp relative to the fixed bracket 10.

[0040] See also Figure 1 and Figure 2 In some embodiments, the power mechanism 30 may further include a driving assembly 37, and the driving assembly 37 is used to drive the telescopic rod 353 to extend and retract relative to the main body 351.

[0041] Specifically, in some embodiments, the driving assembly 37 may be a hydraulic cylinder, a motor, etc. The driving assembly 37 and the telescopic assembly 35 may be connected via one or more structures such as a gear assembly, a pulley assembly, a screw assembly, or a hydraulic transmission, so that the driving force of the driving assembly 37 can be transmitted to the telescopic rod 353, so that the telescopic rod 353 can be telescoped relative to the main body 351, thereby driving the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10, thereby realizing the propeller 200 ( Fig.12 The tilting device 100 and the propeller 200 are prevented from being damaged by impact force.

[0042] 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, and 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.

[0043] The warping device 100 is further explained below with reference to the accompanying drawings.

[0044] See also Figure 1 and Figure 2 In the first aspect of the present application, in the lifting device 100, the fixed bracket 10 includes a first end 11 and a second end 13 opposite to each other, and the rotating bracket 20 is rotatably connected to the second end 13 of the fixed bracket 10. The limiting mechanism 40 acts on the first connecting mechanism 50. In the second state, the limiting mechanism 40 is used to allow a rotating pair to be formed between the first connecting mechanism 50 and the moving member 41, and a moving pair to be formed between the moving member 41 connected to the first connecting mechanism 50 and the guide member 43.

[0045] 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 applied by the limiting mechanism 40, a rotating pair is formed between the first connecting mechanism 50 and 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, that is, the first connecting mechanism 50 is in direct contact with the moving member 41 and can rotate relative to each other, and the moving 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, thereby, the first connecting mechanism 50 and the power mechanism 30 can also move relative to the guide member 43 together with the moving 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.

[0046] Specifically, please combine Fig.12If the lifting device 100 is not provided with the limiting mechanism 40 of the present application, and the first connection structure 50 and the second connection structure 60 are in the unrestricted state, the rotation and lifting of the rotating bracket 20 relative to the fixed bracket 10 is not constrained. Therefore, when the propeller 200 is in the propulsion state, the propeller 200 causes continuous disorderly fluctuations under the disordered fluctuations of the water flow, resulting in the power generated by the propeller 200 being unable to effectively drive the hull 1001 to move, affecting the normal operation of the movable device 1000 in the water area. Therefore, in this embodiment, the first connection mechanism 50 is maintained in a rotation 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 lift by the power mechanism 30, the rotating bracket 20 can maintain normal lifting and rotating movement relative to the fixed bracket 10, thereby ensuring that the power generated by the propeller 200 can drive the hull 1001 to move. Furthermore, 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, thereby releasing the impact force and preventing damage to the lifting device 100 and the propeller 200.

[0047] See also Figure 1 and Figure 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 through the first shaft 51. In the second state, the first shaft 51 can move along the first direction X1 relative to the fixed bracket 10 with the moving member 41, and fall back along the second direction X2. The guide member 43 is disposed on the side wall 19 of the fixed bracket 10. The guide member 43 is used to guide the moving member 41 to move along the first direction X1 relative to the fixed bracket 10, 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 range 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.

[0048] Specifically, in the first state, the first shaft 51 does not move relative to the fixed bracket 10, and at this time, a revolving 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 revolving 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 revolving pair, and the revolving pair elements may 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 may 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.

[0049] More specifically, in some 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 rotation 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 exerted on the power mechanism 30 is greater than the force exerted by the limiting mechanism 40, the limiting mechanism 40 allows 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, 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 exerted on the tilting device 100, that is, releasing the impact force exerted on 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 exerted on 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 rotation pair.

[0050] See also Figure 2In some embodiments, the guide member 43 is a groove 431 disposed on the side wall 19 of the fixed bracket 10, 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 penetrated by the movable member 41, and moves along the first direction X1 relative to the fixed bracket 10 in the groove 431 together with the movable member 41, or falls back along the second direction X2 relative to the fixed bracket 10. 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 setting too many structural members, thereby simplifying the installation steps of the tilting device 100.

[0051] Please continue reading Figure 2 In other embodiments, the guide member 43 is mounted on the side wall 19 of the fixed bracket 10, and the guide member 43 is provided with a groove 431, and at least part of the moving member 41 is located in the groove 431. Specifically, one end of the first shaft 51 is provided with the moving member 41, and moves along the first direction X1 relative to the fixed bracket 10 in the groove 431 with the moving member 41, or falls back along the second direction X2 relative to the fixed bracket 10. In some embodiments, the guide member 43 and the side wall 19 of the fixed bracket 10 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 moving 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 and the side wall 19 of the fixed bracket 10 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 (such as collision wear or corrosion, etc.), it can be easily disassembled for replacement.

[0052] It is understandable that, in some embodiments, a bushing or a bearing (not shown) may be provided on the first shaft 51, and the bushing or the bearing is sleeved on the portion of the first shaft 51 extending into the groove 431, and can move in the groove 431. The provision of the bushing or the bearing can ensure the stability of the movement of the first shaft 61 relative to the fixed bracket 10, and reduce or even avoid the problem of the first shaft 51 getting stuck in the groove 431.

[0053] See also 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 the first state ( Figure 3 As shown), the stopper 45 conflicts with the matching portion 4111; in the second state ( Figure 4As shown in FIG. 4 , the stopper 45 is separated from the matching portion 4111. It should be noted that, in some embodiments, the matching portion 4111 may also be disposed at any position between the first end 411 of the moving member 41 and the second end 413 of the moving member 41.

[0054] 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 an opposite first end 411 and a second end 413. 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 moving member 41, thereby limiting the first shaft 51 and the moving member 41 to maintain 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 moving member 41, and a moving pair to be formed between the moving member 41 connected to the first shaft 51 and the guide member 43, thereby, the first shaft 51 and the moving 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 lift 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 lift device 100.

[0055] For further information, please refer to Figures 2 to 4 In some embodiments, the limit member 45 includes a limit rod 451 and a protrusion 453. One end of the limit rod 451 is rotatably connected to the fixed bracket 10, and the protrusion 453 extends from one side of the limit rod 451 toward the direction of the guide member 43. In the first state, the protrusion 453 penetrates the guide member 43 and conflicts with the matching portion 4111; in the second state, the limit rod 451 rotates relative to the fixed bracket 10 and drives the protrusion 453 to release the contact with the matching portion 4111. It should be noted that in some embodiments, the conflict between the protrusion 453 and the matching portion 4111 can be: point contact is formed between the protrusion 453 and the matching portion 4111; or line contact is formed between the protrusion 453 and the matching portion 4111; or surface contact is formed between the protrusion 453 and the matching portion 4111.

[0056] 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 the power mechanism 30 from being damaged, and ensuring the normal operation of the lift device 100.

[0057] See also 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, and the mating portion 4111 is tilted. 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.

[0058] 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 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 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 member 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 setting of the matching portion 4111 can prevent the protruding portion 453 from getting stuck with the matching portion 4111 when the moving member 41 moves along the first direction X1, which is conducive to the release of the matching between the protruding portion 453 and the matching portion 4111, 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, so that the impact force on the power mechanism 30 can be released, ensuring the normal operation of the tilting device 100. It should be noted that in some embodiments, the matching portion 4111 can be a plane structure, a curved surface structure, a curved surface structure, etc., which is not limited here.

[0059] Please continue reading 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 arc surfaces. The protrusion 453 includes a first side 4531 and a second side 4533 connected to each other. The first side 4531 of the protrusion 453 is used to cooperate with the matching portion 4111, and the second side 4533 of the protrusion 453 is opposite to the moving member 41. The second side 4533 of the protrusion 453 is inclined, and 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.

[0060] 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 released 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 contact 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 movable member 41 can move along the second direction X2 under the action of gravity to return to the original position so that the protrusion 453 and the matching portion 4111 can be re-matched. In this case, the second end 413 of the movable member 41 contacts the second side 4533 of the protrusion 453 first. Since the second end 413 of the movable member 41 is an arc surface and the second side 4533 of the protrusion 453 is inclined, the friction between the movable member 41 and the second side 4533 of the protrusion 453 is small, which can facilitate the movement of the movable member 41 along the second direction X2, ensuring that the movable member 41 can return to the original position, that is, the first axis 51 returns to the original position, so that the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the fixed bracket 10.

[0061] Please continue reading Figures 2 to 5 In some embodiments, the protrusion 453 also includes a third side 4535, and 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.

[0062] Specifically, it can be known from the above-mentioned embodiments that when the protrusion 453 is completely separated from the moving member 41, 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. At this time, if the third side 4535 of the protrusion 453 is also located in the guide member 43, then during the movement of the moving member 41 along the second direction X2, the moving member 41 will first contact the third side 4535 of the protrusion 453, however, the third side 4535 of the protrusion 453 may cause the moving member 41 to be stuck, affecting the moving member 41 to return to the initial position. In some embodiments, the stopper 45 is further provided with a blocking portion 459, which protrudes and extends from one side of the stopper rod 451 toward the guide member 45. 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.

[0063] See also Figures 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 allow 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 exerted on the power mechanism 30 is less than the force exerted by the limiting mechanism 40, the adjusting member 47 is used to put the limiting mechanism 40 in the first state, and when the impact force exerted on the power mechanism 30 is greater than the force exerted by the limiting mechanism 40, the adjusting member 47 allows the limiting mechanism 40 to be transformed to the second state, and can make the limiting mechanism 40 return to the first state from the second state.

[0064] Further, in some embodiments, the stopper 45 includes a first end 455 and a second end 457 opposite to each other, and the first end 455 of the stopper 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 stopper 45, and the other end of the adjusting member 47 is connected to the fixed bracket 10, and the adjusting member 47 is an elastic element.

[0065] 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 47 can limit the limiter 45 to be fixed relative to the fixed bracket 10, so that the protrusion 453 and the matching portion 4111 keep in conflict. Specifically, the adjustment member 47 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 first shaft 51 connected to the moving member 41. Therefore, the force of the limiting mechanism 40 is: the adjustment member 47 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 first shaft 51 in sequence.

[0066] 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 sheet.

[0067] See also Figures 2 to 4 In some embodiments, the adjusting member 47 is connected to the first end 455 of the limiting member 45, the fixed bracket 10 includes a first side 15 and a second side 17 opposite to each other, the protrusion 453 faces the first side 15 of the fixed bracket 10, and the first end 455 of the limiting member 45 can be set at any position between the first side 15 of the fixed bracket 10 and the second side 17 of the fixed bracket 10. In the case where the adjusting member 47 is a tension spring, 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 position of the fixed bracket 10 close to the first side 15 of the fixed bracket 10, that is, the distance between the other end of the adjusting member 47 and the first side 15 of the fixed bracket 10 is smaller than the distance between the other end of the adjusting member 47 and the second side 17 of the fixed bracket 10. Specifically, the adjusting member 47 can always apply an elastic tension to the limiting member 45, and the elastic tension can keep the protrusion 453 in contact with the matching portion 4111, so that the first shaft 51 and the moving member 41 are maintained in a rotation 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 movable member 41 returns to its initial position along the second direction X2, and the limiting member 45, under the action of the elastic tension, makes the protrusion 453 and the matching portion 4111 keep in contact again.

[0068] In other embodiments, when the adjusting member 47 is a compression spring, 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 a position close to the second side 17 of the fixing bracket 10, that is, the distance between the other end of the compression spring and the second side 17 of the fixing bracket 10 is smaller than the distance between the other end of the compression spring and the first side 15 of the fixing 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 matching portion 4111, so that the first shaft 51 and the moving member 41 are maintained in a rotation pair. When the impact force on the power mechanism 30 is greater than the force of 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 on the power mechanism 30 is cancelled, the moving member 41 returns to the 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 pressure. 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 of limiting the moving member 41.

[0069] See also Figure 6 and Figure 7 In other embodiments, the first end 455 of the stopper 45 is rotatably connected to the fixed bracket 10 through the adjusting member 47, and the second end 457 of the stopper 45 is suspended. Figure 6 This is a schematic structural diagram of the limiting mechanism 40 in the first state in this embodiment; Figure 7 Schematic diagram of the structure 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, thereby, 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.

[0070] Specifically, in some embodiments, the adjustment member 47 described in the above embodiments includes any one of a torsion bar, a torsion spring, and a one-way damping shaft. Figure 2 , Figure 6 and Figure 7In some embodiments, the adjusting member 47 can always 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 the first state, the protrusion 453 cooperates with the matching portion 4111, and the first shaft 51 only forms a rotating 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 larger, causing the first shaft 51 to be able to move along the first direction X1 together with the moving member 41 to release the cooperation between the protrusion 453 and the matching portion 4111, at this 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 larger. Therefore, after the impact force on the power mechanism 30 is cancelled, 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 adjustment member 47 to re-match the protrusion 453 with the matching portion 4111.

[0071] In some embodiments, the limiting mechanism 40 further includes a limiting 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 fixed bracket 10, and the limiting member is used to limit the movement of the moving member 41 relative to the fixed bracket 10 along 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.

[0072] 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 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 fixed bracket 10 along the first direction X1, and the tension spring can be stretched to increase the elastic tension applied by the tension spring to the movable member 41. Thus, when the impact force applied to the power mechanism 30 is cancelled, the movable member 41 can return to the initial position under the action of the elastic tension, so that the first shaft 51 and the movable member 41 are maintained in a rotation pair.

[0073] 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 fixed bracket 10. 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 fixed bracket 10, so that the first shaft 51 and the moving 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 moving member 41 can move relative to the fixed bracket 10 along the first direction X1, and the compression spring can be stretched to increase the elastic pressure applied by the compression spring to the moving member 41. Thus, when the impact force applied to the power mechanism 30 is cancelled, the moving member 41 can return to the initial position under the action of the elastic pressure, so that the first shaft 51 and the moving member 41 are maintained in a rotation pair.

[0074] See also Figure 1 and Figure 2 In some embodiments, the tilting device 100 further includes a third shaft 70, and the rotating bracket 20 is rotatably connected to the fixed bracket 10 through the third shaft 70, so that when the driving component 37 drives the telescopic rod 353 of the telescopic component 35 to telescope relative to the main body 351, the telescopic rod 353 can push the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby realizing the tilting of the rotating bracket 20. In some embodiments, a bushing or a bearing may be provided on the third shaft 70, and the bushing or the bearing is provided at the connection between the third shaft 70 and the fixed bracket 10. The provision of the bushing or the bearing can ensure the stability of the rotation of the third shaft 70 relative to the fixed bracket 10, and reduce or even avoid the problem of the third shaft 70 being stuck when rotating in the fixed bracket 10.

[0075] See also Figure 8 In the second aspect of the lift 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.

[0076] Among them, when the power mechanism 30 is subjected to impact force, and the impact force exerted on the power mechanism 30 is greater than the force applied by the limiting mechanism 40, a rotating pair is formed between the second connecting mechanism 60 and 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, that is, the second connecting mechanism 60 is in direct contact with the moving member 41 and can rotate relative to each other, and the moving 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, thereby, the second connecting mechanism 60 and the power mechanism 30 can also move relative to the guide member 43 together with the moving 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.

[0077] Specifically, please combine Fig.12 If the lifting device 100 is not provided with the limiting mechanism 40 of the present application, and the first connection structure 50 and the second connection structure 60 are in the unrestricted state, the rotation and lifting of the rotating bracket 20 relative to the fixed bracket 10 is not constrained. Therefore, when the propeller 200 is in the propulsion state, the propeller 200 causes continuous disorderly fluctuations under the disordered fluctuations of the water flow, resulting in the power generated by the propeller 200 being unable to effectively drive the hull 1001 to move, affecting the normal operation of the movable device 1000 in the water area. Therefore, in this embodiment, the second connection structure 60 is maintained in a rotation 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 lift by the power mechanism 30, the rotating bracket 20 can maintain normal lifting and rotating movement relative to the fixed bracket 10, thereby ensuring that the power generated by the propeller 200 can drive the hull 1001 to move. Furthermore, 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, thereby releasing the impact force and preventing damage to the lifting device 100 and the propeller 200.

[0078] Please continue reading Figure 8 In some embodiments, the rotating bracket 20 includes a side wall 21, and the second connecting mechanism 60 is connected to the side wall 21 of the rotating bracket 20 through the limiting mechanism 40. When the limiting mechanism 40 is released from the action of the power mechanism 30, the second connecting mechanism 60 moves along the side wall 21 of the rotating bracket 20.

[0079] Further, in some 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 through 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 with the moving member 41, and fall back along the second moving direction Y2. The guide member 43 is arranged 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 rotating 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 too much 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.

[0080] Specifically, in the first state, the second shaft 61 does not move relative to the rotating bracket 20, and at this time, a rotation 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 rotation 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 rotation pair, and the rotation 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.

[0081] More specifically, in some 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 rotation 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 rotate relative to the rotating bracket 20. 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 exerted 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 exerted on the tilting device 100, that is, releasing the impact force exerted on 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 exerted on 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.

[0082] Please continue reading Figure 8 In some embodiments, the guide member 43 is a groove 431 disposed on the side wall 21 of the rotating bracket 20, and at least a portion of the moving member 41 is located in the groove 431. Specifically, one end of the second shaft 61 is penetrated by the moving member 41, and moves along the first moving direction Y1 relative to the rotating bracket 20 in the groove 431 together with the moving member 41, or falls back along the second moving direction Y2 relative to the rotating bracket 20. The guide member 43 is a groove 431 disposed on the side wall 21 of the rotating bracket 20, which enables the tilting device 100 to guide the second shaft 61 without having to set too many structural members, thereby simplifying the installation steps of the tilting device 100.

[0083] 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 part of the moving member 41 is located in the groove 431. Specifically, one end of the second shaft 61 is provided with the moving member 41, and moves along the first moving direction Y1 relative to the rotating bracket 20 in the groove 431 with the moving 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 moving 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 (such as collision wear or corrosion, etc.), it can be easily disassembled for replacement.

[0084] It is understandable that in some embodiments, a bushing or a bearing (not shown) may be provided on the second shaft 61, and the bushing or the bearing is sleeved on the portion of the second shaft 61 extending into the groove 431 and can move in the groove 431. The provision of the bushing or the bearing can ensure the stability of the movement of the second shaft 61 relative to the rotating bracket 20, and reduce or even avoid the problem of the second shaft 61 getting stuck in the groove 431.

[0085] See also Figure 8 and Fig. 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 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 the first state, the limiting member 45 is in conflict with the matching portion 4111; in the second state, 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.

[0086] 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 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 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.

[0087] For further information, please refer to Figure 8 and Fig. 9 In some embodiments, the limit member 45 includes a limit rod 451 and a protrusion 453. One end of the limit rod 451 is rotatably connected to the rotating bracket 20, and the protrusion 453 extends from one side of the limit rod 451 toward the direction of the guide member 43. In the first state, the protrusion 453 penetrates the guide member 43 and conflicts with the matching portion 4111; in the second state, the limit rod 451 rotates relative to the rotating bracket 20 and drives the protrusion 453 to release the contact with the matching portion 4111. It should be noted that in some embodiments, the conflict between the protrusion 453 and the matching portion 4111 can be: point contact is formed between the protrusion 453 and the matching portion 4111; or line contact is formed between the protrusion 453 and the matching portion 4111; or surface contact is formed between the protrusion 453 and the matching portion 4111.

[0088] 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. 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 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 second state. It 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 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 the power mechanism 30 from being damaged, and ensuring the normal operation of the lift device 100.

[0089] See also 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, and the mating portion 4111 is tilted. 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.

[0090] 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 lift device 100. In this embodiment, the inclined setting of the matching portion 4111 can prevent the protruding portion 453 from getting stuck with the matching portion 4111 when the moving member 41 moves along the first moving direction Y1, which is conducive to the release of the matching between the protruding portion 453 and the matching portion 4111, 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, so that the impact force on the power mechanism 30 can be released, ensuring the normal operation of the tilting device 100. It should be noted that in some embodiments, the matching portion 4111 can be a plane structure, an arc surface structure, or a curved surface structure, etc., which is not limited here.

[0091] Please continue reading 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 connected to each other. The first side 4531 of the protrusion 453 is used to cooperate with the matching portion 4111, and the second side 4533 of the protrusion 453 is opposite to the moving member 41. The second side 4533 of the protrusion 453 is inclined, and 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.

[0092] 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 released 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 contact the side wall of the moving member 41. If the moving member 41 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 on the structure 30 is cancelled, the moving part 41 can move along the second moving direction Y2 under the action of gravity to return to the 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 inclined, 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 the original position, that is, the second axis 61 returns to the original position, so that the power mechanism 30 can drive the rotating bracket 20 to rotate and tilt relative to the rotating bracket 20.

[0093] Please continue reading Figures 8 to 10 In some embodiments, the protrusion 453 also includes a third side 4535, and 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.

[0094] Specifically, it can be known from the above-mentioned embodiment that when the protrusion 453 is completely separated from the moving member 41, 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. At this time, if the third side 4535 of the protrusion 453 is also located in the guide member 43, then in the process of the moving member 41 moving along the second moving direction Y2, the moving member 41 will first contact the third side 4535 of the protrusion 453, however, the third side 4535 of the protrusion 453 may cause the moving member 41 to be stuck, affecting the moving member 41 to return to the initial position. In some embodiments, the stopper 45 is also provided with a blocking portion 459, which protrudes and extends from one side of the stopper rod 451 toward the guide member 45. 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.

[0095] See also Figure 8 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 maintain the limiting mechanism 40 in 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 to the limiting mechanism 40, the adjusting member 49 is used to keep the limiting mechanism 40 in the first state, and when the impact force applied to the power mechanism 30 is greater than the force applied to the limiting mechanism 40, the adjusting member 49 allows the limiting mechanism 40 to be transformed to the second state, and can make the limiting mechanism 40 return to the first state from the second state.

[0096] Further, in some embodiments, the stopper 45 includes a first end 455 and a second end 457 opposite to each other, and the first end 455 of the stopper 45 is rotatably connected to the rotating bracket 20 via a rotating shaft. One end of the adjustment member 49 is connected to the second end 457 of the stopper 45, and the other end of the adjustment member 49 is connected to the rotating bracket 20, and the adjustment member 49 is an elastic element.

[0097] 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 keep 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, thereby, 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.

[0098] 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.

[0099] See also Figure 8 and Fig. 9 In some embodiments, the rotating bracket 20 includes a first side 23 and a second side 25 opposite to each other, the protrusion 453 faces the first side 23 of the rotating bracket 20, and the first end 455 of the stopper 45 can be set at any position between the first side 23 of the rotating bracket 20 and the second side 25 of the rotating bracket 20. In the case where the adjustment member 49 is a tension spring, one end of the adjustment member 49 is connected to the second end 457 of the stopper 45, and the other end of the adjustment member 49 is connected to the position of the rotating bracket 20 close to the first side 23 of the rotating bracket 20, that is, the distance between the other end of the adjustment member 49 and the first side 23 of the rotating bracket 20 is smaller than the distance between the other end of the adjustment member 49 and the second side 25 of the rotating bracket 20. Specifically, the adjustment member 49 can always apply an elastic tension to the stopper 45, and the elastic tension can keep the protrusion 453 in contact with the matching portion 4111, so that the second shaft 61 and the moving member 41 are maintained in a rotation 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.

[0100] 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 stopper 45, and the other end of the adjustment member 49 is connected to the position of the rotating bracket 20 close to 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 stopper 45, and the elastic pressure can keep the protrusion 453 and the matching portion 4111 in contact, so that the second shaft 61 and the moving member 41 are maintained in a rotation 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 the initial position along the second moving direction Y2, and the limiting member 45, under the action of the elastic pressure, makes the protrusion 453 and the matching portion 4111 keep in contact again.

[0101] See also Fig.11 In other embodiments, the first end 455 of the limit member 45 is rotatably connected to the rotating bracket 20 through the adjustment member 49, and the second end 457 of the limit member 45 is suspended. Specifically, the adjustment member 49 can apply a force to the limit rod 451 through the first end 455 of the limit member 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. Therefore, the force of the limiting mechanism 40 is: the adjustment member 49 acts on the first end 455 of the limit member 45, and then acts 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 adjustment member 49 described in the above embodiments includes any one of a torsion bar, a torsion spring and a one-way damping shaft.

[0102] In some embodiments, the limiting mechanism 40 further includes a limiting 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, and the limiting member is used to limit the moving member 41 from moving relative to the rotating bracket 20 along the first moving direction Y1, and the limiting member is an elastic element. Specifically, in some embodiments, the limiting 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.

[0103] 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 moving 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 moving member 41, and the elastic tension 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. In the case where the impact force applied to the power mechanism 30 is greater than the force of the limiting mechanism 40, the moving member 41 can move relative to the rotating bracket 20 along the first moving direction Y1, and the tension spring can be stretched to increase the elastic tension applied by the tension spring to the moving member 41. Therefore, when the impact force applied to the power mechanism 30 is cancelled, the moving member 41 can return to the initial position under the action of the elastic tension, so that the second shaft 61 and the moving member 41 are maintained in a rotation pair.

[0104] 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 rotating 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 moving member 41 can move relative to the rotating bracket 20 along the first moving direction Y1, and the compression spring can be stretched to increase the elastic pressure applied by the compression spring to the moving member 41, thereby, when the impact force applied to the power mechanism 30 is cancelled, 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 rotating pair.

[0105] See also Figure 8 or Fig.11 In some embodiments, the tilting device 100 further includes a third shaft 70, and the rotating bracket 20 is rotatably connected to the fixed bracket 10 through the third shaft 70, so that when the driving component 37 drives the telescopic rod 353 of the telescopic component 35 to telescope relative to the main body 351, the telescopic rod 353 can push the rotating bracket 20 to rotate relative to the fixed bracket 10, thereby realizing the tilting of the rotating bracket 20. In some embodiments, a bushing or a bearing may be provided on the third shaft 70, and the bushing or the bearing is provided at the connection between the third shaft 70 and the fixed bracket 10. The provision of the bushing or the bearing can ensure the stability of the rotation of the third shaft 70 relative to the fixed bracket 10, and reduce or even avoid the problem of the third shaft 70 being stuck when rotating in the fixed bracket 10.

[0106] See also Fig.12, the embodiment of the present application provides a propeller 200. The propeller 200 includes a propeller body 210 and a tilting device 100 described in any of the above embodiments, and the rotating bracket 20 of the tilting device 100 is connected to the propeller body 210, so that the propeller 200 can 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 water propulsion equipment such as outboard motors (outboard motors), propeller motors, and trolling motors.

[0107] As an embodiment, the propeller body 210 is provided with a steering shaft (not shown), which is perpendicular to the rotating 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.

[0108] In some 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. As an 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 together with the rotating bracket 20. The motor 213 is disposed on the frame 211, and the motor 213 is connected to the propeller 215, and drives the propeller 215 to rotate to provide propulsion.

[0109] 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, and 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.

[0110] See also Fig.12 An embodiment of the present application provides a movable device 1000 in water area, comprising the propeller 200 as described above.

[0111] Specifically, in some embodiments, when the propeller 200 is fixed to the movable device 1000 in the water area through the lifting device 100, and the propeller body 210 is in the propulsion state, the movable device 1000 in the water area can move on the water under the push of the propeller body 210, and when the propeller 200 needs to leave the water surface after use to avoid being immersed in the water for a long time, or when it needs to avoid obstacles in the water during the propulsion process, the lifting is achieved through the power mechanism 30. In addition, when the impact force on the propeller 200 is too large, the limiting mechanism 40 can release the effect 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, and improving the safety factor of the movable device 1000 in the water area.

[0112] 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" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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 the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0113] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, unless otherwise clearly and specifically defined.

[0114] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary 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 bracket and the rotating bracket, the power mechanism comprises a first end and a second end opposite to each other, a first connecting mechanism is arranged between the first end of the power mechanism and the fixed bracket, a second connecting 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 connecting mechanism and the second connecting mechanism; 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 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; 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.

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 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.

4. The tilting device according to claim 3, 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.

5. The warping device according to claim 1, 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.

6. The tilting device according to claim 5, 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.

7. The tilting device according to claim 6, 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.

8. The tilting device according to claim 6, 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.

9. The tilting device according to claim 6, 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.

10. The tilting device according to claim 9, 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.

11. The warping device according to claim 10, 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.

12. The tilting device according to claim 10, 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.

13. The tilting device according to claim 12, 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.

14. The tilting device according to claim 10, 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.

15. The tilting device according to claim 14, 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.

16. The tilting device according to claim 15, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

17. The tilting device according to claim 14, 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.

18. The tilting device according to claim 17, wherein: The adjusting member includes any one of a torsion bar, a torsion spring and a one-way damping shaft.

19. The tilting device according to claim 6, 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.

20. The tilting device according to claim 19, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

21. The warping device according to any one of claims 5 to 20, 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.

22. The tilting device according to claim 21, wherein: The tilting device also includes a third shaft, and the rotating bracket is rotatably connected to the fixed bracket via the third shaft.

23. The tilting device according to claim 1, 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.

24. The tilting device according to claim 23, 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.

25. The tilting device according to claim 24, 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.

26. The tilting device according to claim 25, 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.

27. The tilting device according to claim 25, 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.

28. The tilting device according to claim 25, 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.

29. The tilting device according to claim 28, 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.

30. The tilting device according to claim 29, 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.

31. The tilting device according to claim 29, 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.

32. The tilting device according to claim 31, 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.

33. The tilting device according to claim 29, 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.

34. The tilting device according to claim 33, 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.

35. The tilting device according to claim 34, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

36. The tilting device according to claim 33, 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.

37. The tilting device according to claim 36, wherein: The adjusting member includes any one of a torsion bar, a torsion spring and a one-way damping shaft.

38. The tilting device according to claim 25, 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.

39. The tilting device according to claim 38, wherein: The elastic element includes any one or more of a tension spring, a compression spring, rubber, a gas spring and a spring sheet.

40. The tilting device according to any one of claims 22 to 39, 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.

41. The tilting device according to claim 40, wherein: The tilting device also includes a third shaft, and the rotating bracket is rotatably connected to the fixed bracket via the third shaft.

42. A propeller, wherein: include: Thruster body; and The lifting device according to any one of claims 1 to 41 is connected to the propeller body.

43. A movable device in water area, wherein: include: The thruster of claim 42.

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