Self-righting device for small ships and boats

CN223934928UActive Publication Date: 2026-02-24ARMY MILITARY TRANSPORTATION UNIV OF PLA ZHENJIANG
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Patent Information

Application Number
CN202520293195.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-24
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

船艇可能因为波浪冲击或者操作不当导致过度倾斜甚至倾覆,无法自动恢复船艇姿态,对船上人员的生命财产安全构成严重威胁

Benefits of technology

[0008]This invention provides a self-righting device for small boats. An attitude sensor, a counterweight load, and an auxiliary propeller are installed on the small boat. When the attitude sensor detects a large-angle tilt, the counterweight load is moved to shift the boat's center of gravity, righting the boat in the opposite direction of the tilt. When the attitude sensor detects capsizing, the counterweight load is moved in conjunction with the thrust of the auxiliary propeller to right the boat. This invention alleviates the technical problem in existing technologies where boats may tilt excessively or even capsize due to wave impact or improper operation, posing a serious threat to the lives and property of those on board. It significantly reduces the risk of passenger injury and equipment damage, improves the safety of small boats under extreme conditions, and allows for rapid response to abnormal situations without human intervention, ensuring efficient recovery capabilities.

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Abstract

The utility model discloses a self-righting device for small boats, which relates to the technical field of attitude control of small boats and comprises an attitude sensor, a counterweight load, a water tank, an auxiliary pushing propeller and a single chip microcomputer. Wherein the attitude sensor and the single-chip microcomputer are both arranged in the small boat; the counterweight load is arranged on the screw rod, the screw rod is transversely arranged in the middle inside the small boat, and one end of the screw rod is in transmission connection with the motor; the water tanks are symmetrically arranged on the two sides of the small ship, water inlets are formed in the side edges and the tops of the water tanks correspondingly, and water immersion sensors are arranged in the water tanks. The auxiliary pushing propellers are symmetrically arranged on the two sides of the small boat; the single-chip microcomputer is electrically connected with the attitude sensor, the immersion sensor, the auxiliary propeller and the motor. According to the utility model, the technical problem that the life and property safety of personnel on the ship is seriously threatened as the ship in the prior art may be excessively inclined or even overturned due to wave impact or improper operation is solved.
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Description

Technical Field

[0001] This utility model relates to the field of attitude control technology for small boats, specifically a self-righting device for small boats. Background Technology

[0002] In rough seas, the safety of small boats is paramount. Boats may tilt excessively or even capsize due to wave impact or improper handling, and may be unable to automatically regain their balance, posing a serious threat to the lives and property of those on board. Utility Model Content

[0003] The purpose of this utility model is to provide a small boat self-righting device in order to solve at least one of the above-mentioned technical problems.

[0004] In a first aspect, this utility model provides a self-righting device for small boats, applicable to small boats; comprising: an attitude sensor, a counterweight load, a water tank, an auxiliary propeller, and a microcontroller; wherein, the attitude sensor and the microcontroller are both disposed inside the small boat; the counterweight load is disposed on a screw, the screw being laterally disposed in the middle position inside the small boat, one end of the screw being connected to a motor for transmission; the water tank is symmetrically disposed on both sides of the small boat, with water inlets respectively disposed on the side and top of the water tank, and a water immersion sensor disposed inside the water tank; the auxiliary propeller is symmetrically disposed on both sides of the small boat; the microcontroller is electrically connected to the attitude sensor, the water immersion sensor, the auxiliary propeller, and the motor respectively.

[0005] Furthermore, a threaded hole is provided through the middle of the counterweight load, and the inner wall of the threaded hole is provided with an internal thread that matches the external thread of the screw.

[0006] Furthermore, a limit sensor is also provided at the end of the screw near the motor to monitor the distance between the counterweight load and the motor.

[0007] Furthermore, it also includes a display screen, which is located inside the small boat and electrically connected to the microcontroller, for displaying the status information of the small boat.

[0008] This invention provides a self-righting device for small boats. An attitude sensor, a counterweight load, and an auxiliary propeller are installed on the small boat. When the attitude sensor detects a large-angle tilt, the counterweight load is moved to shift the boat's center of gravity, righting the boat in the opposite direction of the tilt. When the attitude sensor detects capsizing, the counterweight load is moved in conjunction with the thrust of the auxiliary propeller to right the boat. This invention alleviates the technical problem in existing technologies where boats may tilt excessively or even capsize due to wave impact or improper operation, posing a serious threat to the lives and property of those on board. It significantly reduces the risk of passenger injury and equipment damage, improves the safety of small boats under extreme conditions, and allows for rapid response to abnormal situations without human intervention, ensuring efficient recovery capabilities. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0010] Figure 1 A top view of a small boat self-righting device provided in an embodiment of this utility model;

[0011] Figure 2 A three-dimensional schematic diagram of a small boat self-righting device provided for an embodiment of this utility model;

[0012] Figure 3 A schematic diagram of a small boat in a capsized state, provided for an embodiment of this utility model;

[0013] Figure 4 A schematic diagram illustrating the state of a small boat during the righting process, provided as an embodiment of this utility model;

[0014] Figure 5 This is a schematic diagram illustrating how a small boat recovers its normal posture after being righted, as provided in an embodiment of this utility model.

[0015] In the diagram: 1. Attitude sensor, 2. Counterweight load, 3. Water tank, 4. Auxiliary propeller, 5. Microcontroller, 6. Screw, 7. Motor, 8. Water inlet, 9. Immersion sensor, 10. Limit sensor, 11. Display screen. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Figure 1 This is a top view of a small boat self-righting device according to an embodiment of the present invention. Figure 2 This is a perspective view of a self-righting device for small boats according to an embodiment of the present invention. The device is applied to small boats. Figure 1 and Figure 2 As shown, the device includes: an attitude sensor 1, a counterweight load 2, a water tank 3, an auxiliary propeller 4, and a microcontroller 5; wherein, the attitude sensor 1 and the microcontroller 5 are both installed inside the small boat; the counterweight load 2 is installed on a screw 6, which is horizontally positioned in the middle of the small boat, and one end of the screw 6 is connected to a motor 7 for transmission; the water tank 3 is symmetrically arranged on both sides of the small boat, and water inlets 8 are respectively provided on the side and top of the water tank 3, and a water immersion sensor 9 is installed inside the water tank 3; the auxiliary propeller 4 is symmetrically arranged on both sides of the small boat; the microcontroller 5 is electrically connected to the attitude sensor 1, the water immersion sensor 9, the auxiliary propeller 4, and the motor 7 respectively.

[0018] Specifically, attitude sensor 1 is used to monitor the attitude information of small boats in real time, including the hull tilt angle, sway period and motion information, and then send the attitude information to microcontroller 5 for data response judgment.

[0019] When the small boat is sailing smoothly on the sea surface, the counterweight load 2 is located in the center of the small boat and in the middle of the screw 6 to maintain the balance of the small boat.

[0020] Specifically, a threaded hole is provided through the center of the counterweight load 2, and an internal thread matching the external thread of the screw 6 is provided on the inner wall of the threaded hole. In this embodiment of the invention, the motor 7 drives the screw 6 to rotate, thereby causing the counterweight load 2 to move laterally along the screw 6.

[0021] The microcontroller 5 is used to determine whether the small boat is in a self-righting state or in a capsizing state based on the attitude information obtained by the attitude sensor 1. Specifically, if the tilt angle of the hull is determined to be greater than the tilt angle threshold, the microcontroller 5 sends a trigger signal to the motor 7, causing the motor 7 to drive the screw 6 to rotate, which in turn causes the counterweight load 2 to move to the opposite side of the tilt angle. By moving the counterweight load 2, the center of gravity of the small boat is shifted, thereby counteracting the rolling reaction caused by the waves and improving the buoyancy stability of the boat.

[0022] Specifically, such as Figure 1 As shown, a limit sensor 10 is also provided at the end of the screw 6 near the motor 7 to monitor the distance between the counterweight load 2 and the motor 7.

[0023] Specifically, if a small boat encounters extreme weather or special circumstances and accidentally capsizes on the sea surface, the boat can be righted by moving the position of the counterweight load 2 in conjunction with the thrust of the auxiliary propeller 4.

[0024] Figure 3 This is a schematic diagram of a small boat in a capsized state according to an embodiment of the present utility model. Figure 4 This is a schematic diagram illustrating the state of a small boat during the righting process, according to an embodiment of the present invention. Figure 5 This is a schematic diagram illustrating how a small boat, according to an embodiment of the present invention, returns to its normal posture after a righting process. Figures 3-5 As shown, firstly, the attitude sensor 1 will promptly detect any abnormal state of the boat and send the abnormal state to the microcontroller 5. The microcontroller 5 sends a trigger signal to the motor 7, causing the motor 7 to drive the screw 6 to rotate, which in turn drives the counterweight load 2 to move closer to the motor 7. When the limit sensor 10 detects that the counterweight load 2 has moved to the end of the screw 6, the motor 7 stops rotating. At the same time, the water tank 3, through the center of gravity shift and the characteristics of the mechanism, starts to fill with water from the inlet 8. The purpose is to give the small boat a good micro-tilt sinking angle, so as to provide an effective working water area for the auxiliary propeller 4, so as to generate an environment for upward thrust to right the boat.

[0025] When the immersion sensor 9 inside water tank 3 detects water inside water tank 3, it indicates that the small boat has reached a good micro-tilt state and has sufficient space to generate thrust for the auxiliary propeller. Figure 4 As shown. At this time, the microcontroller 5 sends a trigger signal to the auxiliary propeller 4, causing the two auxiliary propellers 4 on both sides of the small boat to start working and generate thrust in opposite directions. At the same time, the microcontroller 5 controls the motor 7 to rotate in the opposite direction, so as to drive the counterweight load 2 from the end of the screw 6 to the middle, shifting the center of gravity of the small boat back to the right. At this time, under the thrust of the two auxiliary propellers 4, the small boat returns from the tilted state to the normal state, completing the righting of the small boat.

[0026] Specifically, such as Figure 1 As shown, it also includes a display screen 11, which is installed inside the small boat and electrically connected to the microcontroller 5, for displaying the status information of the small boat.

[0027] As can be seen from the above description, the self-righting device for small boats provided by this utility model embodiment can significantly reduce the risk of injury to passengers and damage to equipment, improve the safety of small boats under extreme conditions, and at the same time, it can quickly respond to abnormal situations without human intervention, ensuring efficient reset capability.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-righting device for small boats, characterized in that, This device is applied to small boats and includes: an attitude sensor, a counterweight load, a water tank, an auxiliary propeller, and a microcontroller; wherein, the attitude sensor and the microcontroller are both located inside the small boat; the counterweight load is mounted on a screw, which is laterally positioned in the middle of the small boat's interior, and one end of the screw is connected to a motor; the water tanks are symmetrically located on both sides of the small boat, with water inlets on the sides and top of the water tanks, and a water immersion sensor is installed inside the water tanks; the auxiliary propellers are symmetrically located on both sides of the small boat; the microcontroller is electrically connected to the attitude sensor, the water immersion sensor, the auxiliary propeller, and the motor.

2. The self-righting device for small boats according to claim 1, characterized in that: The counterweight load has a threaded hole running through it, and the inner wall of the threaded hole has an internal thread that matches the external thread of the screw.

3. The self-righting device for small boats according to claim 1, characterized in that: A limit sensor is also provided at the end of the screw near the motor to monitor the distance between the counterweight load and the motor.

4. The self-righting device for small boats according to claim 1, characterized in that: It also includes a display screen, which is located inside the small boat and electrically connected to the microcontroller, for displaying the status information of the small boat.