A multi-functional integrated control rudder device for hovercraft

Abstract

The present invention relates to a multi-functional integrated control steering wheel device for an air-cushion vehicle, which integrates the control functions of various pneumatic control surfaces of the air-cushion vehicle and the corresponding control devices on a control mechanism to form a control steering wheel device similar to an automobile steering wheel. Through this control steering wheel device, pneumatic control surfaces such as variable pitch air propellers, air rudders, and vector nozzles can be effectively controlled to achieve the heading control, turning, braking, speed adjustment and setting of the air-cushion vehicle. The present invention integrates multiple control functions such as heading control, turning, braking, speed adjustment and setting, and at the same time integrates the relevant control devices of various pneumatic control surfaces, realizing the linkage of pneumatic control surfaces. Thus, it not only simplifies the design of the control console, improves the friendliness of the operation interface, but also simplifies the operation process, achieves the effect of the driver's hands not leaving the steering wheel during operation, and avoids the need for the driver to frequently leave the hands to switch control devices to complete the control of various pneumatic control surfaces during navigation.

Description

Technical Field

[0001] This invention relates to a control rudder for a hovercraft, and more specifically to a multi-functional integrated control rudder device for hovercraft. Background Technology

[0002] When a hovercraft is navigating normally, because its hull floats on the water or land, it cannot use water-based control surfaces for directional maneuvering and control. Instead, it must use air-based aerodynamic control surfaces. However, air density is only 1 / 800th that of water, which means that the control force provided by a single aerodynamic control surface is relatively small. As a result, hovercraft need to be equipped with numerous aerodynamic control surfaces (such as variable-pitch air propellers, air rudders, vectoring nozzles, and side doors) to provide sufficient control force. Moreover, these aerodynamic control surfaces often need to work together to ensure the normal navigation and maneuverability of the hovercraft.

[0003] Currently, hovercraft navigation primarily employs a single-function distributed control mode, where each control device can only control a single aerodynamic control surface (e.g., a steering wheel controlling only the deflection of the air rudder, a pitch lever controlling only the pitch of the air propeller, a gear lever controlling only the speed of the variable-pitch air propeller, a rocker arm controlling only the deflection of the vector nozzle, a switch controlling only the opening and closing of the side flaps, etc.). Furthermore, these control devices are distributed across different areas of the bridge. However, hovercraft often require the simultaneous operation of multiple aerodynamic control surfaces during navigation. This single-function distributed control mode not only results in a complex layout of control devices on the bridge and an unfriendly interface, but also a complex operating procedure, significantly increasing the operator's workload and reducing human-machine interface efficiency. Moreover, it easily leads to misoperation or operational delays when facing complex navigation conditions and emergencies, potentially causing navigational accidents. Therefore, developing multi-functional integrated control devices to improve the control efficiency of hovercraft and ensure navigational safety is of significant practical importance. Summary of the Invention

[0004] In view of the above-mentioned problems of the existing single-function distributed control mode of hovercraft, the purpose of this invention is to propose a multi-functional integrated control rudder device for hovercraft, which enables the driver to effectively control various aerodynamic control surfaces of the hovercraft using only this device, achieving the effect of control without taking the hands off the rudder, thereby simplifying the operation process, improving human-machine efficiency and driving friendliness, reducing the driver's operating burden, and reducing the risk of misoperation.

[0005] To achieve the above objectives, the technical solution of the present invention is: a multi-functional integrated control rudder device for hovercraft, which integrates the control functions of various aerodynamic control surfaces and corresponding control devices of hovercraft into a control mechanism, forming a control rudder device similar to a car steering wheel. This multi-functional integrated control rudder device for hovercraft can effectively control aerodynamic control surfaces such as variable pitch propellers, aerodynamic rudders, and vector nozzles, and realize heading control, turning, braking, speed adjustment and setting, thereby achieving the effect of control without taking the hands off the wheel.

[0006] Furthermore, the device includes a back plate, a left joystick, a right joystick, a joystick locking mechanism, and a panel protective cover. The back plate is connected to the aerodynamic shaft of the rudder. The left and right joysticks are respectively installed on the left and right sides of the back plate, and each can rotate around its root axis and around its own central axis. The top of the left and right joysticks is provided with a joystick locking mechanism. The panel protective cover is installed on the back plate for wiring of the left and right joystick control system and enhances the overall aesthetics of the multi-functional integrated control rudder device.

[0007] Furthermore, the multi-functional integrated control rudder device can rotate as a whole around the aerodynamic axis of the air rudder to adjust the deflection angle of the air rudder, thereby controlling the ship's course or causing the ship to make a slow turning motion.

[0008] Furthermore, the left joystick is connected to the air rudder, vector nozzle, and variable-pitch air propeller via the control system, and can rotate clockwise around its root axis to simultaneously control the air rudder to deflect to the right and the vector nozzle to deflect to the left, thereby causing the hull to make a rapid clockwise rotation; and can also rotate counterclockwise around its own central axis to reduce the pitch of the variable-pitch air propeller, while the nozzle of the vector nozzle deflects towards the bow to provide negative thrust, thereby decelerating the hull or performing emergency braking.

[0009] Furthermore, the left rocker arm can rotate clockwise around its root axis within a range of 0–30°, simultaneously driving the air rudder and vector nozzle. At 0°, both the air rudder and vector nozzle deflection angles are at their initial set positions; at 30°, the air rudder deflection angle is at its maximum, while the vector nozzle nozzle deflects to the direction perpendicular to the port side of the hull. The left rocker arm can also rotate counterclockwise around its own central axis within a range of 0–90°, simultaneously driving the variable-pitch air propeller and vector nozzle. At 0°, the variable-pitch air propeller pitch is at its initial set position; at 90°, the variable-pitch air propeller pitch is at its minimum. When the rotation angle of the left rocker arm is greater than 0°, the vector nozzle nozzles all point towards the bow. The left rocker arm has a return mechanism in both its rotation around the root left axis and its rotation around its own central axis, allowing it to automatically return to its initial position and lock when the driver releases the lever, and providing feedback and prompts on the driver's control amplitude.

[0010] Furthermore, the right stick is connected to the air rudder, vector nozzle, and variable-pitch air propeller via the control system, and can rotate counterclockwise around its root axis. This is used to simultaneously control the air rudder to deflect to the left and the vector nozzle to deflect to the right, thereby causing the hull to perform a rapid counterclockwise rotation. It also rotates clockwise around its own central axis to increase the pitch of the variable-pitch air propeller, while the nozzle of the vector nozzle deflects towards the stern to provide positive thrust, thereby obtaining greater thrust to increase speed.

[0011] Furthermore, the right rocker arm can rotate counterclockwise within the range of 0 to 30° around its root axis, simultaneously driving the air rudder and vector nozzle. At 0°, the deflection angles of both the air rudder and the vector nozzle are at their initial set positions. At 30°, the deflection angle of the air rudder is at its maximum, while the nozzle of the vector nozzle deflects to the direction perpendicular to the starboard side of the hull. The right rocker arm can also rotate clockwise within the range of 0 to 90° around its own central axis, simultaneously driving the pitch of the variable-pitch air propeller and the vector nozzle. At 0°, the pitch of the variable-pitch air propeller is at its initial set position. At 90°, the pitch of the variable-pitch air propeller is at its maximum. When the rotation angle of the right rocker arm is greater than 0°, the nozzles of the vector nozzle all point towards the stern. The right rocker arm is equipped with a return mechanism only in the degree of freedom of rotation around its root axis, so that when the driver releases the lever, the right rocker arm automatically returns to its initial position and locks.

[0012] Furthermore, the backplate is used to mount and fix the left and right rocker arms and the panel protective cover, and can drive the multi-functional integrated control rudder device to rotate around the air rudder drive shaft. The backplate is a machined metal part with sufficient strength and rigidity, which can effectively prevent the multi-functional integrated control rudder device from deforming or being damaged due to excessive force by the driver, thereby affecting the realization of the control function. The backplate has symmetrically arranged sliding grooves on the left and right sides of the top, which are slidably connected to the heads of the left and right rocker arms to constrain the heads of the left and right rocker arms and protect the base of the rocker arm shaft. The sliding grooves are arc-shaped, and the rotation angle range of both sides of the sliding groove is 0 to 30°, where 0° is the initial limit position, at which point the left and right rocker arms are in a vertical state, and 30° is the maximum limit position. Except for the connecting and supporting parts, the backplate has a hollow structure in other parts, which is used to reduce the overall weight and increase the aesthetics while ensuring load-bearing capacity and service life.

[0013] Furthermore, a small disc is provided at the bottom of the right joystick, which can be used to fix the rotation angle of the right joystick by rotating the small disc, thereby locking the pitch of the variable pitch air propeller and realizing the speed setting. At the same time, it effectively avoids the risk of accidentally triggering the variable pitch air propeller pitch adjustment function when performing other operations.

[0014] Furthermore, the locking mechanism is used to lock and unlock the left and right joysticks. When the unlock button of the locking mechanism is pressed, the left and right joysticks can rotate around the root pivot or around their own central axis, thereby effectively avoiding the risk of accidentally triggering the joystick operation function when performing other operations.

[0015] The beneficial effects of this invention are:

[0016] This invention provides a multi-functional integrated control rudder device that integrates multiple control functions such as heading control, turning, braking, speed adjustment and setting. It also integrates various aerodynamic control surface control devices, realizing the linkage of aerodynamic control surfaces. This simplifies the design of the control console, improves the user-friendliness of the control interface, and simplifies the operation process. It enables the driver to operate the rudder without taking their hands off the wheel, avoiding the problems of frequent hand-to-hand switching of control devices to complete various aerodynamic control surface operations during navigation, which can easily lead to misoperation and control delays. The driver can conveniently complete various driving control actions by operating the multi-functional integrated control rudder device while maintaining a relatively comfortable and constant sitting posture, greatly reducing the driving burden and improving human-machine efficiency and driving experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the multifunctional integrated control rudder device of the present invention;

[0018] In the diagram: 1. Housing; 2. Air rudder angle scale; 3. Air rudder actuation spindle; 4. Left joystick slide; 5. Backplate; 6. Left joystick locking mechanism; 7. Left joystick root pivot; 8. Right joystick slide; 9. Right joystick locking mechanism; 10. Panel protective cover; 11. Right joystick; 12. Right joystick bottom disc; 13. Right joystick root pivot; 14. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, the present invention provides a multi-functional integrated control rudder device for hovercraft, which integrates the control functions of various aerodynamic control surfaces and related control devices of hovercraft into a single control mechanism, forming a control rudder device similar to a car steering wheel. The driver can effectively control aerodynamic control surfaces such as variable pitch propellers, aerodynamic rudders, and vector nozzles through this multi-functional integrated control rudder device, and realize functions such as heading control, turning, braking, speed adjustment and setting, thereby achieving the effect of control without taking the hands off the wheel.

[0021] By manipulating the multi-functional integrated control rudder device to rotate around the aerodynamic axis, the deflection angle of the aerodynamic rudder can be adjusted, thereby controlling the ship's course or causing the ship to slowly turn. By manipulating the left rocker arm on the multi-functional integrated control rudder device to rotate clockwise around its root axis, the aerodynamic rudder can be simultaneously driven to deflect to the right and the vectoring nozzle to deflect to the left, thus causing the ship to rapidly turn clockwise. By manipulating the left rocker arm on the multi-functional integrated control rudder device to rotate counterclockwise around its central axis, the pitch of the variable-pitch propeller can be reduced, and the nozzle of the vectoring nozzle can be deflected towards the bow to provide negative thrust, thereby... The system can decelerate the ship or apply emergency braking. By rotating the right rocker arm on the multi-functional integrated control rudder counterclockwise around its root axis, the air rudder can be driven to deflect to the left and the vector nozzle to deflect to the right, causing the ship to rotate rapidly counterclockwise. By rotating the right rocker arm on the multi-functional integrated control rudder clockwise around its central axis, the pitch of the variable-pitch air propeller can be increased, and the nozzle of the vector nozzle can be deflected towards the stern to provide positive thrust, thereby obtaining greater thrust to increase speed. The pitch of the variable-pitch air propeller can be fixed by rotating the small disc at the root of the right rocker arm, thus setting the speed.

[0022] Example:

[0023] like Figure 1 As shown, the multifunctional integrated control rudder device of the present invention includes a back plate 5, a left rocker arm 7, a right rocker arm 12, a left rocker arm locking mechanism 6, a right rocker arm locking mechanism 10, and a panel protective cover 1. The back plate 5 is connected to the aerodynamic shaft 3, allowing the entire multifunctional integrated control rudder device to rotate around the aerodynamic shaft 3. The left rocker arm 7 and right rocker arm 12 are fixed to the left and right sides of the back plate 5, respectively, and can rotate around the root pivot 8 of the left rocker arm and the root pivot 14 of the right rocker arm, or around their own central axis. The left rocker arm locking mechanism 6 and the right rocker arm locking mechanism 10 are located at the top of the left rocker arm 7 and the right rocker arm 12, respectively. The panel protective cover 11 is connected to the back plate 5.

[0024] The air rudder actuation main shaft 3 is located directly in front of the driver and extends out from the center of the housing 1. It has self-resetting and directional adjustment functions. When the driver releases the multi-functional integrated control rudder device, the air rudder actuation main shaft 3 automatically returns to center, the air rudder deflection angle returns to 0°, and the hull moves forward.

[0025] The housing 1, which is connected to the main shaft 3 of the air rudder, has an air rudder angle scale 2 installed on its surface to assist the driver in controlling and reading the air rudder deflection angle.

[0026] The air rudder angle scale 2 is arc-shaped with angle markings and guide arrows on its surface. The angle markings and guide arrows are symmetrically arranged with respect to the vertical direction. The angle indicated by the pointer corresponds to the actual deflection angle of the air rudder. When the ship is moving straight forward, the pointer is in the vertical direction, corresponding to the 0-degree mark, at which point the air rudder deflection angle is 0°.

[0027] The top of the backplate 5 is symmetrically equipped with left and right sliding grooves 4 and 9, which are used to constrain the heads of the left rocker arm 7 and the right rocker arm 12, and at the same time protect the root pivot 8 of the left rocker arm and the root pivot 14 of the right rocker arm. The left sliding groove 4 and the right sliding groove 9 are arc-shaped and have the same stroke range, which can ensure that the left rocker arm 7 and the right rocker arm 12 can rotate within the range of 0 to 30° around the root pivot 8 of the left rocker arm and the root pivot 14 of the right rocker arm, respectively.

[0028] The backplate 5 is used to mount and fix the left joystick 7, the right joystick 12, and the panel protective cover 11. The backplate 5 is a machined metal part with sufficient strength and rigidity to effectively prevent deformation or damage to the multi-functional integrated control rudder due to excessive driver input, thus preventing issues affecting the control function. Except for the connecting and supporting parts, the remaining parts of the backplate 5 are designed with openwork, which reduces overall weight and increases aesthetics while ensuring load-bearing capacity and service life.

[0029] The left rocker arm 7 and the right rocker arm 12 are fixed to the left and right sides of the backplate 5, respectively. The left rocker arm 7 can rotate clockwise around the pivot 8 at its root within a range of 0 to 30°, driving the hull to perform a rapid clockwise rotation. The right rocker arm 12 can rotate counterclockwise around the pivot 14 at its root within a range of 0 to 30°, driving the hull to perform a rapid counterclockwise rotation. 0° is the initial position, at which point both the left rocker arm 7 and the right rocker arm 12 are in a vertical state, and the deflection angles of the air rudder and the vector nozzle are at their initial set positions. 30° is the maximum stroke position, at which point the deflection angle of the air rudder is at its maximum, and the nozzle of the vector nozzle is deflected to a direction perpendicular to the port or starboard side of the hull.

[0030] The left joystick 7 can rotate counterclockwise around its central axis within the range of 0 to 90°, driving the hull to decelerate or perform emergency braking. 0° is the initial position, at which point the pitch of the variable-pitch air propeller is at its initial set position; 90° is the maximum stroke position, at which point the pitch of the variable-pitch air propeller is at its minimum. During the rotation of the left joystick 7 around its central axis, as long as the rotation angle is greater than 0°, the nozzle of the vectoring nozzle points towards the bow to provide negative thrust.

[0031] The right stick 12 can also rotate clockwise around its central axis within the range of 0 to 90° to adjust and set the ship's speed. 0° is the initial position, at which point the pitch of the variable-pitch air propeller is at the initial set position; 90° is the maximum stroke position, at which point the pitch of the variable-pitch air propeller is at its maximum. During the rotation of the right stick 12 around its central axis, as long as the rotation angle is greater than 0°, the nozzle of the vectoring nozzle points towards the stern to provide positive thrust.

[0032] The left stick 7 has a return mechanism in both its rotation around the pivot 8 at its root and its rotation around its own central axis. When the pilot releases the stick, the left stick 7 automatically returns to its initial position and locks, while the aerodynamic rudder and vector nozzle deflection angles, as well as the variable-pitch propeller pitch, all return to their initial settings.

[0033] The left stick 7 can also provide feedback and prompts to the pilot's control amplitude through the rebound mechanism. The greater the angle of clockwise rotation of the left stick 7 around the pivot 8 at its base, the greater the deflection angle of the air rudder and vector nozzle, the faster the hull turns, and the stronger the damping feeling provided by the rebound mechanism. The greater the angle of counterclockwise rotation of the left stick 7 around its own central axis, the smaller the pitch of the variable-pitch air propeller, the greater the negative thrust, the better the braking effect, and the stronger the damping feeling provided by the rebound mechanism.

[0034] The right stick 12 has a return mechanism only in the degree of freedom of rotation about the pivot 14 at the base of the right stick. When the pilot releases the stick, the right stick 12 automatically returns to its initial position and locks, while the aerodynamic rudder and vector nozzle deflection angles also return to their initial settings.

[0035] The right stick 12 can also provide feedback and prompts to the pilot's control range through the rebound mechanism. The greater the counterclockwise rotation angle of the right stick 12 around the pivot 14 at the base of the right stick, the greater the deflection angle of the air rudder and vector nozzle, the faster the hull turns, and the stronger the damping feel provided by the rebound mechanism.

[0036] The right stick 12 does not have a return mechanism in its degree of freedom of rotation around its own central axis. Instead, a small disk 13 is set at its bottom. By rotating the small disk 13, the rotation angle of the right stick 12 can be fixed, thereby locking the pitch of the variable pitch air propeller and realizing the speed setting. At the same time, it can also effectively avoid the risk of accidentally triggering the variable pitch air propeller pitch adjustment function when performing other operations.

[0037] The left joystick locking mechanism 6 and the right joystick locking mechanism 10 are used to lock and unlock the left joystick 7 and the right joystick 12. When the unlock buttons of the left joystick locking mechanism 6 and the right joystick locking mechanism 10 are pressed, the left joystick 7 and the right joystick 12 can rotate around the left joystick root pivot 8 and the right joystick root pivot 14 respectively, or rotate around their own central axis, thereby effectively avoiding the risk of accidentally triggering the joystick operation function when performing other operations.

[0038] The panel cover 11 is used for the control system wiring of the left joystick 7 and the right joystick 12, and enhances the overall aesthetics of the multi-functional integrated control rudder device.

Claims

1. A multi-functional integrated control rudder device for hovercraft, characterized in that: This multi-functional integrated control rudder device integrates the control functions of various aerodynamic control surfaces and corresponding control devices of a hovercraft into a single control mechanism, forming a control rudder similar to a car steering wheel. This device allows for effective control of the aerodynamic control surfaces of the variable-pitch propeller, aerodynamic rudder, and vector nozzle, enabling heading control, turning, braking, speed adjustment and setting, thus achieving control without taking the hands off the rudder. The device includes a backplate, a left rocker arm, a right rocker arm, a rocker arm locking mechanism, and a panel protective cover. The backplate is connected to the aerodynamic rudder's actuation shaft. The left and right rocker arms are respectively mounted on the left and right sides of the backplate, each capable of rotating around its root axis and its own central axis. The top of the left and right rocker arms are respectively equipped with a rocker arm locking mechanism. The panel protective cover is mounted on the backplate for wiring of the left and right rocker arm control systems and enhances the overall aesthetics of the multi-functional integrated control rudder device.

2. The multi-functional integrated control rudder device for hovercraft according to claim 1, characterized in that: The multi-functional integrated control rudder device can rotate as a whole around the main shaft of the air rudder, which is used to adjust the deflection angle of the air rudder, thereby controlling the hull's course or causing the hull to make a slow turning motion.

3. The multi-functional integrated control rudder device for hovercraft according to claim 1, characterized in that: The left joystick is connected to the air rudder, vectoring nozzle, and variable-pitch propeller via a control system, and can rotate clockwise around its root axis. It is used to simultaneously control the air rudder to deflect to the right and the vectoring nozzle to deflect to the left, thereby causing the hull to perform a rapid clockwise rotation. It can rotate counterclockwise around its own central axis to reduce the pitch of the variable-pitch air propeller, while the nozzle of the vector nozzle is deflected towards the bow to provide negative thrust, thereby slowing down the hull or performing emergency braking.

4. The multi-functional integrated control rudder device for hovercraft according to claim 3, characterized in that: The left rocker arm can rotate clockwise around its root axis within a range of 0–30°, simultaneously driving the air rudder and vectoring nozzle. At 0°, both the air rudder and vectoring nozzle deflection angles are at their initial set positions. At 30°, the air rudder deflection angle is at its maximum, while the vectoring nozzle nozzle deflects to the port side perpendicular to the hull. The left rocker arm can also rotate counterclockwise around its own central axis within a range of 0–90°, simultaneously driving the variable-pitch propeller and vectoring nozzle. At 0°, the variable-pitch propeller pitch is at its initial set position. At 90°, the variable-pitch propeller pitch is at its minimum. When the rotation angle of the left rocker arm is greater than 0°, the vectoring nozzle nozzles all point towards the bow. The left rocker arm has a return mechanism in both its rotation around the root axis and its own central axis, allowing it to automatically return to its initial position and lock when the operator releases the lever, and providing feedback and prompts on the operator's control amplitude.

5. The multi-functional integrated control rudder device for hovercraft according to claim 1, characterized in that: The right joystick is connected to the air rudder, vectoring nozzle, and variable-pitch propeller via a control system, and can rotate counterclockwise around its root axis. It is used to simultaneously control the air rudder to deflect to the left and the vectoring nozzle to deflect to the right, thereby causing the hull to perform a rapid counterclockwise rotation. It rotates clockwise around its own central axis to increase the pitch of the variable-pitch air propeller, while the nozzle of the vector nozzle is deflected towards the stern to provide positive thrust, thereby obtaining greater thrust to increase speed.

6. The multi-functional integrated control rudder device for hovercraft according to claim 5, characterized in that: The right rocker arm can rotate counterclockwise around its root axis within a range of 0–30°, simultaneously driving the air rudder and vector nozzle. At 0°, both the air rudder and vector nozzle deflection angles are at their initial set positions. At 30°, the air rudder deflection angle is at its maximum, and the vector nozzle nozzle deflects to the starboard direction perpendicular to the hull. The right rocker arm can also rotate clockwise around its central axis within a range of 0–90°, simultaneously driving the variable-pitch propeller and vector nozzle. At 0°, the variable-pitch propeller pitch is at its initial set position. At 90°, the variable-pitch propeller pitch is at its maximum. When the rotation angle of the right rocker arm is greater than 0°, the vector nozzle nozzles all point towards the stern. The right rocker arm is equipped with a return mechanism only in its degree of freedom of rotation around its root axis, so that when the operator releases the lever, the right rocker arm automatically returns to its initial position and locks.

7. The multi-functional integrated control rudder device for hovercraft according to claim 1, characterized in that: The back plate is used to install and fix the left and right rocker arms and the panel protective cover, and can drive the multi-functional integrated control rudder device to rotate around the air rudder drive shaft. The backplate is a machined metal part with sufficient strength and rigidity to effectively prevent deformation or damage to the multi-functional integrated control rudder due to excessive driver input, thus affecting the operation of the control function. Symmetrical grooves are arranged on the left and right sides of the top of the backplate, which slide to the heads of the left and right rocker arms, constraining the heads of the rocker arms and protecting the base of the rocker arms. The grooves are arc-shaped, with a rotation range of 0-30° on both sides. 0° is the initial limit position, where the left and right rocker arms are vertical, and 30° is the maximum limit position. Except for the connecting and supporting parts, the backplate has a hollow structure in other areas to reduce overall weight and increase aesthetics while ensuring load-bearing capacity and service life.

8. The multi-functional integrated control rudder device for hovercraft according to claim 1, characterized in that: A small disc is located at the bottom of the right joystick. Rotating the disc fixes the rotation angle of the right joystick, thereby locking the pitch of the variable-pitch air propeller and setting the speed. This also effectively avoids the risk of accidentally triggering the variable-pitch air propeller pitch adjustment function during other operations.

9. The multi-functional integrated control rudder device for hovercraft according to claim 1, characterized in that: The locking mechanism is used to lock and unlock the left and right joysticks. When the unlock button of the locking mechanism is pressed, the left and right joysticks can rotate around the root pivot or around their own central axis, thereby effectively avoiding the risk of accidentally triggering the joystick operation function when performing other operations.

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