A self-righting watercraft

Abstract

The present invention discloses a self-righting watercraft, comprising a watercraft body, a propeller and a counterweight, wherein the watercraft body comprises a plurality of connecting parts, the propellers are respectively arranged at the tail ends of the plurality of connecting parts, the counterweights are respectively arranged at the tail ends of the plurality of connecting parts, the counterweights are arranged at positions such that when the watercraft body is reversely placed in the water, the watercraft body is automatically adjusted back to the right position, tail wings are arranged at the parts of the tail ends of the plurality of connecting parts located under the water surface, the tail wings and the watercraft body form an angle α, the watercraft body forms an angle B with the water surface when traveling, and the size of the angle B is inversely proportional to the size of the angle α under the same environment and the same speed; the self-righting unmanned watercraft can effectively improve its ability to resist severe wind and waves and its stability.

Description

Technical Field

[0001] The invention relates to the field of watercraft, in particular to a watercraft capable of self-righting. Background Art

[0002] A life buoy is a type of water life-saving equipment, usually made of cork, foam plastic or other lightweight materials with a low specific gravity, and covered with canvas, plastic, etc. Most existing life buoys do not have a propulsion device, and only rely on the buoyancy of the water surface to provide propulsion power. They do not have the ability to move autonomously. When rescuers are far away from the rescue target, it is difficult to accurately and quickly throw the life buoy to the drowning person.

[0003] The existing lifebuoy does not have a power device, which reduces the efficiency of rescue workers in rescuing drowning people. In order to improve the efficiency of rescuing drowning people, researchers have developed a lifebuoy equipped with a power device. The power device is generally set on the back of the lifebuoy body. During use, the power device generates thrust by interacting with water to drive the lifebuoy forward or backward.

[0004] However, when the life buoy is thrown into the water, the front side of the life buoy body may face upwards, or the back side of the life buoy body may face upwards. If the back side of the life buoy body faces upwards, the rescuers need to first adjust the direction of the life buoy body so that the power device is placed in the water, which will delay the rescue time and reduce the efficiency of the rescue. However, the efficiency of rescuing drowning people is directly related to whether lives can be successfully saved. Summary of the invention

[0005] In view of the above-mentioned shortcomings that currently exist, the present invention provides a self-righting watercraft. By arranging a counterweight block, the main body of the aircraft is automatically adjusted when the main body of the aircraft is placed in the water in reverse, thereby improving the anti-interference ability of the aircraft and improving the rescue efficiency. Furthermore, a tail wing is arranged, and a reverse torque is provided through the force of the water flow on the tail wing, forcing the head of the aircraft to lower and get closer to the water surface, thereby achieving the purpose of improving its stability and wind resistance.

[0006] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0007] A self-righting watercraft, the self-righting watercraft comprising a vehicle body, a propeller and a counterweight, the vehicle body comprising a plurality of connecting parts, the propellers being respectively arranged at the tail ends of the plurality of connecting parts, the counterweights being respectively arranged at the tail ends of the plurality of connecting parts, the arrangement position of the counterweights enabling the vehicle body to automatically adjust back to the right position when the vehicle body is reversely placed in the water.

[0008] According to one aspect of the present invention, the counterweight is arranged at the lower part of the propeller.

[0009] According to one aspect of the present invention, a pointed protrusion is provided on the lower surface of the connecting portion.

[0010] According to one aspect of the present invention, a power supply, a controller and a wireless transceiver are provided in the main body of the aircraft, the propeller, the controller and the wireless transceiver are all connected to the power supply, the wireless transceiver is connected to the controller, and the controller controls the operation of the propeller.

[0011] According to one aspect of the present invention, the self-righting watercraft includes a remote control, the wireless transceiver is used to receive a remote control signal transmitted by the remote control and send the remote control signal to the controller, and the controller is used to control the operation of the propeller after receiving the remote control signal.

[0012] According to one aspect of the present invention, the self-righting watercraft includes a positioning device, which is used to obtain the geographic location information of the craft and send the geographic location information to the controller. The controller is also used to send the geographic location information to the search and rescue center via the wireless transceiver.

[0013] A self-righting watercraft, the self-righting watercraft comprising a vehicle body, a propeller and a counterweight, the vehicle body comprising a plurality of connecting parts, the propellers being respectively arranged at the tail ends of the plurality of connecting parts, the counterweights being respectively arranged at the tail ends of the plurality of connecting parts, the counterweights being arranged at positions such that the vehicle body automatically adjusts back to the right position when the vehicle body is reversely placed in the water, tail wings are arranged at the parts of the tail ends of the plurality of connecting parts located under the water surface, the tail wings and the vehicle body form an angle α, the vehicle body forms an angle B with the water surface when traveling, and the size of the angle B is inversely proportional to the size of the angle α under the same environment and at the same speed.

[0014] According to one aspect of the present invention, the size of the angle α can be changed by changing the installation angle of the tail wing.

[0015] According to one aspect of the present invention, the counterweight is arranged at the lower part of the propeller.

[0016] According to one aspect of the present invention, the tail wing is disposed on a counterweight.

[0017] According to one aspect of the present invention, tail wings are symmetrically arranged on both sides of the rear end of the connecting portion.

[0018] According to one aspect of the present invention, the tail wing is streamlined.

[0019] According to one aspect of the present invention, a pointed protrusion is provided on the lower surface of the connecting portion.

[0020] According to one aspect of the present invention, a power supply, a controller and a wireless transceiver are provided in the main body of the aircraft, the propeller, the controller and the wireless transceiver are all connected to the power supply, the wireless transceiver is connected to the controller, and the controller controls the operation of the propeller.

[0021] According to one aspect of the present invention, the self-righting watercraft includes a remote control, the wireless transceiver is used to receive a remote control signal transmitted by the remote control and send the remote control signal to the controller, and the controller is used to control the operation of the propeller after receiving the remote control signal.

[0022] According to one aspect of the present invention, the self-righting watercraft includes a positioning device, which is used to obtain the geographic location information of the craft and send the geographic location information to the controller. The controller is also used to send the geographic location information to the search and rescue center via the wireless transceiver.

[0023] Advantages of the implementation of the present invention: The self-righting watercraft of the present invention comprises a watercraft body, a propeller and a counterweight. The watercraft body comprises a plurality of connecting parts, the propellers are respectively arranged at the tail ends of the plurality of connecting parts, the counterweights are respectively arranged at the tail ends of the plurality of connecting parts, the arrangement position of the counterweights enables the watercraft body to automatically adjust back to the right position when the watercraft body is reversely placed in the water, the tail ends of the plurality of connecting parts are provided with tail wings at the parts below the water surface, the tail wings and the watercraft body form an angle α, the watercraft body forms an angle B with the water surface when traveling, and the size of the angle B is inversely proportional to the size of the angle α under the same environment and the same speed; the watercraft body has the ability to move autonomously through the propeller, and under the control of the remote controller, the rescue personnel can accurately and quickly deliver the self-righting watercraft to the drowning person, and the counterweights are arranged so that the self-righting watercraft body is automatically adjusted when the self-righting watercraft body is reversely placed in the water, thereby improving the anti-interference ability of the self-righting watercraft and improving the rescue efficiency. Furthermore, a method for enhancing the stability of a self-righting unmanned watercraft is provided, which can effectively improve the ability and stability of the self-righting unmanned watercraft to resist severe wind and waves. The principle is to add a tail wing to the tail part below the water surface of the unmanned watercraft, and provide a reverse torque through the force of the water flow on the tail wing, forcing the head of the vehicle to lower and get closer to the water surface, so as to achieve the purpose of improving its stability and wind resistance. In addition, as the speed of the unmanned watercraft increases, the reverse torque increases, so that the watercraft can travel stably at a higher ship speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the self-righting watercraft according to the present invention;

[0026] Figure 2 It is a bottom view schematic diagram of the self-righting watercraft of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the watercraft with a tail wing capable of self-righting according to the present invention;

[0028] Figure 4 It is a schematic diagram of the working principle of the watercraft with a tail wing that can self-righten according to the present invention;

[0029] Figure 5 The figure is a schematic diagram comparing the driving states of the watercraft with tail and without tail according to the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] like Figure 1 and Figure 2 As shown, a self-righting watercraft comprises a watercraft body 1, a propeller 3 and a counterweight 7. The watercraft body is a semi-enclosed structure, which comprises a plurality of connecting parts 11. The propeller 3 is respectively arranged at the tail ends of the plurality of connecting parts 11, and the counterweight 4 is respectively arranged at the tail ends of the plurality of connecting parts 11. The setting position of the counterweight 7 enables the watercraft body 1 to automatically adjust back to the right position when the watercraft body 1 is reversely placed in the water.

[0033] In practical applications, there is no particular restriction on the specific form of the counterweight block 7, as long as the counterweight block 7 is set in such a position that the aircraft body 1 automatically adjusts back to the center when the aircraft body 1 is placed inverted in the water, wherein the return to the center means that the front side of the aircraft body 1 faces upward.

[0034] In practical applications, the aircraft body 1 may be made of a lightweight material or an airbag, and this embodiment does not impose any particular limitation on the specific material of the aircraft body.

[0035] In actual applications, the main body of the aircraft is in the shape of a saddle or U-shaped structure, with a large head and gradually narrowing on both sides. The cross-sectional area of ​​the connecting portion 11 decreases as the distance to the tail decreases. The side of the aircraft is similar to a teardrop shape, with a large front end and a gradually narrowing tail. Such a streamlined structure is beneficial to reducing the travel resistance of the aircraft. The teardrop-shaped structure can place the propeller 3 at a relatively deep position from the water surface, preventing the propeller 3 from being too shallow in the water or even floating on the surface of the water to reduce the propulsion force.

[0036] In practical applications, the counterweight 7 is arranged at the lower part of the propeller 3 .

[0037] In actual application, the lower surface of the connecting part is provided with a pointed protrusion. In order to reduce the resistance of the overall forward movement of the aircraft, the cross-sections on both sides of the aircraft body are designed to have a smooth upper surface and a pointed protrusion 13 on the lower surface. The pointed protrusion can increase the wave-breaking ability of the aircraft when the aircraft is in use, thereby reducing the travel resistance.

[0038] In actual application, a power supply 2, a controller 6 and a wireless transceiver 5 are provided in the main body of the aircraft. The propeller 3, the controller 6 and the wireless transceiver 5 are all connected to the power supply 2. The wireless transceiver 5 is connected to the controller 6. The controller controls the operation of the propeller.

[0039] In practical applications, the power source 2 provides power for the propeller 3 , and this embodiment does not impose any particular limitation on the specific form of the power source 2 .

[0040] In practical applications, the propeller 3 provides driving force for the aircraft body 1. The present embodiment does not impose any particular limitation on the specific form of the propeller 3. For example, it may be a propeller propeller or a pump-jet propeller.

[0041] In actual application, the self-righting watercraft includes a remote controller 4, the wireless transceiver 5 is used to receive a remote control signal transmitted by the remote controller 4, and send the remote control signal to the controller 6, and the controller 6 is used to control the operation of the propeller 3 after receiving the remote control signal.

[0042] In practical applications, the self-righting watercraft includes a positioning device, which is used to obtain the geographic location information of the craft and send the geographic location information to the controller. The controller is also used to send the geographic location information to the search and rescue center via the wireless transceiver.

[0043] In practical application, a handle 8 is also provided on the aircraft body.

[0044] The method of using this embodiment is as follows: when conducting surface rescue, the rescuer can throw the watercraft into the water and use the remote controller 4 to remotely control the craft to reach the vicinity of the drowning person. The drowning person holds onto the craft, and the rescuer then remotely controls the craft through the remote controller 4 to bring the drowning person to a safe area.

[0045] Embodiment 2

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a self-righting watercraft comprises a watercraft body 1, a propeller 3 and a counterweight 7. The watercraft body is a semi-enclosed structure, which comprises a plurality of connecting parts 11. The propellers 3 are respectively arranged at the tail ends of the plurality of connecting parts 11, and the counterweights 4 are respectively arranged at the tail ends of the plurality of connecting parts 11. The counterweights 7 are arranged at positions such that when the watercraft body 1 is reversely placed in the water, the watercraft body 1 automatically adjusts back to the right position. The tail ends of the plurality of connecting parts are located below the water surface and provided with tail wings 9. The tail wings 9 form an angle α with the watercraft body. The watercraft body forms an angle B with the water surface when traveling. Under the same environment and the same speed, the size of the angle B is inversely proportional to the size of the angle α.

[0047] like Figure 4 As shown, the working principle of this embodiment is as follows: Figure 4 is the posture of the watercraft when traveling, and B is the angle between the vehicle and the water surface. The smaller the angle, the better the stability and wind and wave resistance of the vehicle. In order to reduce the angle B, a tail wing is added to the part below the water surface of the unmanned watercraft. When the vehicle is running, the water generates Fwater on the tail wing. Fwater can be decomposed into Flift and Fdrag. The two components jointly generate a torque Mtail, which lowers the head of the vehicle, that is, the angle B is reduced, thereby increasing the stability and wind and wave resistance of the vehicle. According to the formula F (C is the water resistance coefficient; ρ is the water density; S is the water-facing area of ​​the object; V is the speed of the object and the water) It can be seen that Fwater is positively correlated with the square of the speed. Therefore, the faster the speed of the watercraft, the larger the Fwater and the larger the Mtail. Without changing other structures, the maximum speed of the vehicle can be increased without reducing the stability and wind and wave resistance of the watercraft.

[0048] In practical applications, the size of the angle α can be changed by changing the installation angle of the tail. Angle B can be changed by changing the angle α of the tail. Within a certain angle range, the larger the angle α, the lower the angle B, the improved wind and wave resistance and stability, and the smaller the angle α, the lower the speed wind and wave resistance. Therefore, the size of angle α can be selected by judging different environments. The connection between the tail and the tail end of the connecting part is a detachable connection. By using different α angles in different use environments, for example, in the case of strong winds and waves, the head of the aircraft body is very easy to tilt up, so it is necessary to increase the α angle so that the corresponding B angle becomes smaller, and the head of the aircraft is lowered accordingly.

[0049] In practical applications, there is no particular restriction on the specific form of the counterweight block 7, as long as the counterweight block 7 is set in such a position that the aircraft body 1 automatically adjusts back to the center when the aircraft body 1 is placed inverted in the water, wherein the return to the center means that the front side of the aircraft body 1 faces upward.

[0050] In practical applications, the aircraft body 1 may be made of a lightweight material or an airbag, and this embodiment does not impose any particular limitation on the specific material of the aircraft body.

[0051] In actual applications, the main body of the aircraft is in the shape of a saddle or U-shaped structure, with a large head and gradually narrowing on both sides. The cross-sectional area of ​​the connecting portion 11 decreases as the distance to the tail decreases. The side of the aircraft is similar to a teardrop shape, with a large front end and a gradually narrowing tail. Such a streamlined structure is beneficial to reducing the travel resistance of the aircraft. The teardrop-shaped structure can place the propeller 3 at a relatively deep position from the water surface, preventing the propeller 3 from being too shallow in the water or even floating on the surface of the water to reduce the propulsion force.

[0052] In practical applications, the counterweight 7 is arranged at the lower part of the propeller 3 .

[0053] In practical applications, tail wings are symmetrically arranged on both sides of the rear end of the connecting portion.

[0054] In practical applications, the tail wing is streamlined.

[0055] In actual application, the lower surface of the connecting part is provided with a pointed protrusion. In order to reduce the resistance of the overall forward movement of the aircraft, the cross-sections on both sides of the aircraft body are designed to have a smooth upper surface and a pointed protrusion 13 on the lower surface. The pointed protrusion can increase the wave-breaking ability of the aircraft when the aircraft is in use, thereby reducing the travel resistance.

[0056] In actual application, a power supply 2, a controller 6 and a wireless transceiver 5 are provided in the main body of the aircraft. The propeller 3, the controller 6 and the wireless transceiver 5 are all connected to the power supply 2. The wireless transceiver 5 is connected to the controller 6. The controller controls the operation of the propeller.

[0057] In practical applications, the power source 2 provides power for the propeller 3 , and this embodiment does not impose any particular limitation on the specific form of the power source 2 .

[0058] In practical applications, the propeller 3 provides driving force for the aircraft body 1. The present embodiment does not impose any particular limitation on the specific form of the propeller 3. For example, it may be a propeller propeller or a pump-jet propeller.

[0059] In actual application, the self-righting watercraft includes a remote controller 4, the wireless transceiver 5 is used to receive a remote control signal transmitted by the remote controller 4, and send the remote control signal to the controller 6, and the controller 6 is used to control the operation of the propeller 3 after receiving the remote control signal.

[0060] In practical applications, the self-righting watercraft includes a positioning device, which is used to obtain the geographic location information of the craft and send the geographic location information to the controller. The controller is also used to send the geographic location information to the search and rescue center via the wireless transceiver.

[0061] In practical application, a handle 8 is also provided on the aircraft body.

[0062] The method of using this embodiment is as follows: when conducting surface rescue, the rescuer can throw the watercraft into the water and use the remote controller 4 to remotely control the craft to reach the vicinity of the drowning person. The drowning person holds onto the craft, and the rescuer then remotely controls the craft through the remote controller 4 to bring the drowning person to a safe area.

[0063] Advantages of the implementation of the present invention: The self-righting watercraft of the present invention comprises a watercraft body, a propeller and a counterweight. The watercraft body comprises a plurality of connecting parts, the propellers are respectively arranged at the tail ends of the plurality of connecting parts, the counterweights are respectively arranged at the tail ends of the plurality of connecting parts, the arrangement position of the counterweights enables the watercraft body to automatically adjust back to the right position when the watercraft body is reversely placed in the water, the tail ends of the plurality of connecting parts are provided with tail wings at the parts below the water surface, the tail wings and the watercraft body form an angle α, the watercraft body forms an angle B with the water surface when traveling, and the size of the angle B is inversely proportional to the size of the angle α under the same environment and the same speed; the watercraft body has the ability to move autonomously through the propeller, and under the control of the remote controller, the rescue personnel can accurately and quickly deliver the self-righting watercraft to the drowning person, and the counterweights are arranged so that the self-righting watercraft body is automatically adjusted when the self-righting watercraft body is reversely placed in the water, thereby improving the anti-interference ability of the self-righting watercraft and improving the rescue efficiency. Furthermore, a method for enhancing the stability of a self-righting unmanned watercraft is provided, which can effectively improve the ability and stability of the self-righting unmanned watercraft to resist severe wind and waves. The principle is to add a tail wing to the tail part below the water surface of the unmanned watercraft, and provide a reverse torque through the force of the water flow on the tail wing, forcing the head of the vehicle to lower and get closer to the water surface, so as to achieve the purpose of improving its stability and wind resistance. In addition, as the speed of the unmanned watercraft increases, the reverse torque increases, so that the watercraft can travel stably at a higher ship speed.

[0064] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A self-righting watercraft, characterized in that: The self-righting watercraft comprises a vehicle body, a propeller and a counterweight, the vehicle body comprises a plurality of connecting parts, the propellers are respectively arranged at the tail ends of the plurality of connecting parts, the counterweights are respectively arranged at the tail ends of the plurality of connecting parts, the counterweights are arranged in such a position that the vehicle body automatically adjusts back to the right position when the vehicle body is reversely placed in the water, tail fins are arranged at the tail ends of the plurality of connecting parts located under the water surface, the tail fins form an angle α with the vehicle body, the vehicle body forms an angle B with the water surface when traveling, the size of the angle B is inversely proportional to the size of the angle α under the same environment and the same speed, and the size of the angle α can be changed by changing the installation angle of the tail fins.

2. The self-righting watercraft according to claim 1, characterized in that: The tail wing is detachably connected to the rear end of the connecting portion.

3. The self-righting watercraft according to claim 1, characterized in that: The counterweight block is arranged at the lower part of the propeller.

4. The self-righting watercraft according to claim 1, characterized in that: A pointed protrusion is provided on the lower surface of the connecting portion.

5. The self-righting watercraft according to claim 1, characterized in that: The tail wing is arranged on the counterweight.

6. The self-righting watercraft according to claim 1, characterized in that: Tail wings are symmetrically arranged on both sides of the rear end of the connecting portion, and the tail wings are streamlined.

7. The self-righting watercraft according to any one of claims 1 to 6, characterized in that: A power source, a controller and a wireless transceiver are arranged in the main body of the aircraft. The propeller, the controller and the wireless transceiver are all connected to the power source. The wireless transceiver is connected to the controller. The controller controls the operation of the propeller.

8. The self-righting watercraft according to claim 7, characterized in that: The self-righting watercraft comprises a remote controller, the wireless transceiver is used to receive a remote control signal transmitted by the remote controller and send the remote control signal to the controller, and the controller is used to control the operation of the propeller after receiving the remote control signal.

9. The self-righting watercraft according to claim 7, characterized in that: The self-righting watercraft includes a positioning device, which is used to obtain the geographic location information of the craft and send the geographic location information to the controller. The controller is also used to send the geographic location information to the search and rescue center via the wireless transceiver.

Images