A water jet propulsion device and a double-surface watercraft

Abstract

The present invention discloses a water jet propulsion device and a double-surface watercraft equipped with the water jet propulsion device. The water jet propulsion device has a plurality of water inlets and a water outlet, wherein the plurality of water inlets are distributed on two water-contacting surfaces, and a water inlet cover is provided at the water inlet, wherein the water inlet cover comprises at least one axially rotatable cover plate, and the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets that cooperate with each other, wherein the polarity of at least one magnet on the edge can be changed, and also comprises a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet; only the water inlet below the water surface is opened, thereby preventing air from entering from the water inlet on the water surface, greatly improving the pump spraying efficiency, and improving the speed and stability of the double-surface water unmanned vehicle.

Description

Technical Field

[0001] The present invention relates to the field of watercraft, and in particular to a water jet propulsion device and a double-surface watercraft. Background Art

[0002] In recent years, natural disasters have occurred frequently, and people have put forward higher requirements for the level of water rescue or investigation. Under harsh natural conditions, achieving efficient and strong wind and wave resistant water unmanned aerial vehicle rescue is still an urgent problem to be solved. Remote control life-saving double-sided water unmanned aerial vehicle is widely used in rescue sites as an efficient water rescue or investigation product. The double-sided water inlet spray pump structure of the double-sided water unmanned aerial vehicle remote control life-saving device is different from the single-sided water inlet of the unmanned lifeboat. Its double-sided opening spray pump structure enables the double-sided water unmanned aerial vehicle remote control life-saving device to be used on both sides. This feature enables the life-saving device to withstand strong winds and waves, and it can be used normally even if it is overturned by wind and waves. For example, Chinese patent CN201820000678.3 discloses a double-sided water vehicle, but the traditional double-inlet pump spray is in the open state when working, so the water inlet at the bottom of the water will suck in water, and the water inlet above the water surface will suck in air, causing a significant reduction in power. Summary of the invention

[0003] In view of the above-mentioned shortcomings that currently exist, the present invention provides a water jet propulsion device and a double-surface water vehicle, which only open the water inlet below the water surface to prevent air from entering from the water inlet above the water surface, greatly improve the pump jet efficiency, and improve the speed and stability of the double-surface water unmanned vehicle.

[0004] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0005] A water jet propulsion device, the water jet propulsion device has multiple water inlets and one water outlet, the multiple water inlets are distributed on two water contact surfaces, a water inlet cover is provided at the water inlet, the water inlet cover includes at least one axially rotatable cover plate, the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets that cooperate with each other, wherein the polarity of at least one magnet on the edge can be changed, and also includes a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet.

[0006] According to one aspect of the present invention, a sealing gasket is provided on the contact surface between the water inlet edge and the cover edge, which serves to increase the sealing performance when the water inlet cover is closed with the water inlet edge, thereby preventing excessive air from being sucked into the pump, which would reduce the output power.

[0007] According to one aspect of the present invention, the water jet propulsion device also includes: a propulsion device body and an outer shell, the propulsion device body is encapsulated in the outer shell, the propulsion device body is provided with a main body water outlet and at least two main body water inlets, the outer shell is provided with a shell water inlet and a shell water outlet, the shell water inlet is connected with the main body water inlet, the shell water outlet is connected with the main body water outlet, at least two main body water inlets are evenly distributed along the circumference of the propulsion device body, each of the main body water inlet is connected with the main body water outlet, an engine and an impeller are installed inside the propulsion device body, the impeller is installed on the engine output shaft, and the impeller is arranged at the confluence of the water flow channels of the main body water inlet for sucking in water flow and spraying water flow.

[0008] According to one aspect of the present invention, a sensor is provided at the water inlet, and the sensor is connected to a control system. The control system determines whether to open or close the water inlet based on the data at the water inlet collected by the sensor to control the opening or closing of the water inlet cover.

[0009] According to one aspect of the present invention, when the cover plate and the water inlet are in an open state, the cover plate and the opening plane of the water inlet are fixed at a certain angle to exist as a tail wing.

[0010] According to one aspect of the present invention, the water inlet cover comprises two cover plates, one axial side of the two cover plates is close to each other and meshed through a synchronous gear.

[0011] According to one aspect of the present invention, the electromagnets of the two cover plates attract each other when they are turned on, and repel each other when they are turned off.

[0012] According to one aspect of the present invention, the water jet propulsion device has two water inlets. When the water jet propulsion device is placed horizontally with its front side facing upward, one of the water inlets is located above the water jet propulsion device, and the other water inlet is located below the water jet propulsion device.

[0013] A double-surface watercraft comprises a vehicle body with two water-contacting surfaces and at least one of the above-mentioned water jet propulsion devices.

[0014] According to one aspect of the present invention, the aircraft body has a plurality of connection parts, the number of which is the same as the number of the water jet propulsion devices, and each connection part is connected to a water jet propulsion device.

[0015] The working principle of the water jet propulsion device is as follows: the initial state of the water jet propulsion device is that both water inlets are closed. When the double-sided water unmanned vehicle is thrown into the water and opened, the intelligent control system senses the front and back of the double-sided water unmanned vehicle under the action of the attitude sensor, and then controls the polarity of the water inlet cover electromagnet and the water inlet edge electromagnet, so that the polarity of the electromagnets on the two water inlet covers below the water surface becomes opposite and the corresponding water inlet edge electromagnets become the same. Under the combined action of magnetic force and gravity, the closed water inlet is opened and the two water inlet opening and closing assemblies are mutually closed. They are attracted together, so that they can serve as the tail wing of the water unmanned vehicle, which improves the stability of the water unmanned vehicle; in addition, in order to prevent the already attracted water inlet assembly from deviating to the side due to external forces, a synchronous gear is added to the water inlet cover, so that the two water inlet covers are in a meshing state, so that the two attracted water inlet assemblies cannot deviate to the side; the two water inlet cover electromagnets above the water surface have the same polarity, and the water inlet edge electromagnet is opposite to the corresponding water inlet cover electromagnet, so the water inlet cover electromagnet above the water surface is firmly attracted by the water inlet edge electromagnet.

[0016] In the case of adverse natural conditions, the double-sided water unmanned vehicle was overturned. At this time, the intelligent control system changed the polarity of the electromagnets on the two closed water inlet covers on the water part to opposite directions, and the electromagnets on the water inlet covers and the electromagnets on the edge of the water inlet to the same polarity. At the same time, under the action of gravity, the two water inlet covers attracted each other and the water inlet was opened. Similarly, the polarity of the electromagnets on the water inlet covers that had been opened on the water surface changed to the same polarity and the electromagnets on the edge of the water inlet changed to the opposite polarity, and at the same time, under the action of gravity, the water inlet was closed.

[0017] Advantages of the implementation of the present invention: The water jet propulsion device and the double-sided watercraft equipped with the water jet propulsion device described in the present invention, wherein the water jet propulsion device has multiple water inlets and one water outlet, wherein the multiple water inlets are distributed on two water-contacting surfaces, and a water inlet cover is provided at the water inlet, wherein the water inlet cover includes at least one axially rotatable cover plate, wherein the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets that cooperate with each other, wherein the polarity of at least one magnet on the edge can be changed, and further includes a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet; many improvements have been made in the structure of the water inlet spray pump Under the action of the intelligent control system, the front and back sides of the double-sided water unmanned aircraft can be sensed, and the opening and closing states of the water inlet covers on different sides can be controlled by controlling the magnetism of the electromagnets on the water inlet covers and the electromagnets on the body; compared with the traditional double-sided remote-controlled double-sided water unmanned aircraft, both water inlets are in an open state, a large amount of air will enter from the water inlet above the water surface, resulting in low efficiency of the water jet propulsion. Under normal working conditions, the double-sided water unmanned aircraft of the present invention only opens the water inlet below the water surface, avoiding the entry of air from the water inlet on the water surface, greatly improving the pump spraying efficiency, and improving the speed and stability of the double-sided water unmanned aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a schematic structural diagram of the water jet propulsion device of the present invention;

[0020] Figure 2 This is a schematic diagram of the cover plate structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the initial opening of the water jet propulsion device of the present invention;

[0022] Figure 4 A schematic diagram showing the water jet propulsion device of the present invention being turned over and turned to open;

[0023] Figure 5 The figure is a schematic structural diagram of the double-surface watercraft according to the present invention. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a water jet propulsion device, the water jet propulsion device 1 has a plurality of water inlets 2 and a water outlet 4, the plurality of water inlets are distributed on two water contact surfaces, a water inlet cover 3 is provided at the water inlet, the water inlet cover includes at least one axially rotatable cover plate 31, the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets 32 that cooperate with each other, wherein the magnet of at least one edge can change polarity, and also includes a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet.

[0027] In actual application, the water jet propulsion device also includes: a propulsion device body and an outer shell, the propulsion device body is encapsulated in the outer shell, the propulsion device body is provided with a main body water outlet and at least two main body water inlets, the outer shell is provided with a shell water inlet and a shell water outlet, the shell water inlet is communicated with the main body water inlet, the shell water outlet is communicated with the main body water outlet, at least two main body water inlets are evenly distributed along the circumference of the propulsion device body, each of the main body water inlet is communicated with the main body water outlet, an engine and an impeller are installed inside the propulsion device body, the impeller is installed on the engine output shaft, and the impeller is arranged at the confluence of the water flow channels of the main body water inlet for sucking in water flow and spraying water flow.

[0028] In practical applications, a sensor is provided at the water inlet, and the sensor is connected to a control system. The control system determines whether to open or close the water inlet according to the data at the water inlet collected by the sensor to control the opening or closing of the water inlet cover.

[0029] In practical applications, when the cover plate and the water inlet are in an open state, the cover plate and the opening plane of the water inlet are fixed at a certain angle to exist as a tail wing.

[0030] Embodiment 1

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a water jet propulsion device, the water jet propulsion device 1 has multiple water inlets 2 and a water outlet 4, the multiple water inlets are distributed on two water contact surfaces, the water inlet is provided with a water inlet cover 3, the water inlet cover includes at least one axially rotatable cover plate 31, the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets 32 that cooperate with each other, wherein at least one magnet of the edge can change polarity, and also includes a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet, and the contact surface between the water inlet edge and the cover plate edge is provided with a sealing gasket 33. Its function is to increase the sealing performance when the water inlet cover and the water inlet edge are attracted to each other, to prevent too much air from being sucked into the pump, resulting in a decrease in output power.

[0032] In actual application, the water jet propulsion device also includes: a propulsion device body and an outer shell, the propulsion device body is encapsulated in the outer shell, the propulsion device body is provided with a main body water outlet and at least two main body water inlets, the outer shell is provided with a shell water inlet and a shell water outlet, the shell water inlet is connected with the main body water inlet, the shell water outlet is connected with the main body water outlet, at least two main body water inlets are evenly distributed along the circumference of the propulsion device body, each of the main body water inlet is connected with the main body water outlet, an engine and an impeller are installed inside the propulsion device body, the impeller is installed on the engine output shaft, and the impeller is arranged at the confluence of the water flow channels of the main body water inlet for sucking in water flow and spraying water flow.

[0033] In practical applications, a sensor is provided at the water inlet, and the sensor is connected to a control system. The control system determines whether to open or close the water inlet according to the data at the water inlet collected by the sensor to control the opening or closing of the water inlet cover.

[0034] In practical applications, when the cover plate and the water inlet are in an open state, the cover plate and the opening plane of the water inlet are fixed at a certain angle to exist as a tail wing.

[0035] In practical applications, the water inlet cover includes two cover plates, one axial side of the two cover plates is close to each other and meshed through the synchronous gear 34 .

[0036] In practical applications, the polarities of the electromagnets of the two cover plates attract each other when they are turned on, and repel each other when they are turned off.

[0037] In practical applications, the water jet propulsion device has two water inlets. When the water jet propulsion device is placed horizontally with its front side facing upward, one of the water inlets is located above the water jet propulsion device, and the other water inlet is located below the water jet propulsion device.

[0038] Embodiment 1

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a double-surface watercraft comprises a craft body 5 with two water-contacting surfaces and at least one water jet propulsion device 1, wherein the water jet propulsion device 1 has a plurality of water inlets 2 and a water outlet 4, wherein the plurality of water inlets are distributed on the two water-contacting surfaces, a water inlet cover 3 is provided at the water inlet, and the water inlet cover comprises at least one axially rotatable cover plate 31, wherein the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets 32 that cooperate with each other, wherein the magnet of at least one edge can change polarity, and further comprises a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet.

[0040] In practical applications, the aircraft body has a plurality of connecting parts 51, the number of which is the same as the number of the water jet propulsion devices, and each connecting part is connected to a water jet propulsion device.

[0041] In practical applications, the contact surface between the water inlet edge and the cover edge is provided with a sealing gasket 33. Its function is to increase the sealing performance when the water inlet cover is sucked together with the water inlet edge, so as to prevent too much air from being sucked into the pump, resulting in a reduction in output power.

[0042] In actual application, the water jet propulsion device also includes: a propulsion device body and an outer shell, the propulsion device body is encapsulated in the outer shell, the propulsion device body is provided with a main body water outlet and at least two main body water inlets, the outer shell is provided with a shell water inlet and a shell water outlet, the shell water inlet is connected with the main body water inlet, the shell water outlet is connected with the main body water outlet, at least two main body water inlets are evenly distributed along the circumference of the propulsion device body, each of the main body water inlet is connected with the main body water outlet, an engine and an impeller are installed inside the propulsion device body, the impeller is installed on the engine output shaft, and the impeller is arranged at the confluence of the water flow channels of the main body water inlet for sucking in water flow and spraying water flow.

[0043] In practical applications, a sensor is provided at the water inlet, and the sensor is connected to a control system. The control system determines whether to open or close the water inlet according to the data at the water inlet collected by the sensor to control the opening or closing of the water inlet cover.

[0044] In practical applications, when the cover plate and the water inlet are in an open state, the cover plate and the water inlet opening plane are fixed at a certain angle so that they can serve as the tail wing of the water unmanned vehicle, which improves the stability of the water unmanned vehicle.

[0045] In practical applications, the water inlet cover includes two cover plates, one axial side of the two cover plates is close to each other and meshed through the synchronous gear 34 .

[0046] In practical applications, the polarities of the electromagnets of the two cover plates attract each other when they are turned on, and repel each other when they are turned off.

[0047] In practical applications, the water jet propulsion device has two water inlets. When the water jet propulsion device is placed horizontally with its front side facing upward, one of the water inlets is located above the water jet propulsion device, and the other water inlet is located below the water jet propulsion device.

[0048] The working principle of the water jet propulsion device is as follows: the initial state of the water jet propulsion device is that both water inlets are closed. When the double-sided water unmanned vehicle is thrown into the water and turned on, the intelligent control system senses the front and back sides of the double-sided water unmanned vehicle under the action of the attitude sensor, and then controls the polarity of the water inlet cover electromagnet and the water inlet edge electromagnet, so that the polarity of the electromagnets on the two water inlet covers below the water surface becomes opposite and the corresponding water inlet edge electromagnets become the same. Under the combined action of magnetic force and gravity, the closed water inlet is opened and the two water inlets are opened and closed. The assemblies are attracted to each other, so that they can serve as tail wings to provide direction control functions for water unmanned vehicles; in addition, in order to prevent the already attracted water inlet assembly from deviating to the side due to external forces, a synchronous gear is added to the water inlet cover so that the two water inlet covers are in a meshing state, so that the two attracted water inlet assemblies cannot deviate to the side; the two water inlet cover electromagnets above the water surface have the same polarity, and the water inlet edge electromagnet is opposite to the corresponding water inlet cover electromagnet, so the water inlet cover electromagnet above the water surface is firmly attracted by the water inlet edge electromagnet.

[0049] In the case of adverse natural conditions, the double-sided water unmanned vehicle was overturned. At this time, the intelligent control system changed the polarity of the electromagnets on the two closed water inlet covers on the water part to opposite directions, and the electromagnets on the water inlet covers and the electromagnets on the edge of the water inlet to the same polarity. At the same time, under the action of gravity, the two water inlet covers attracted each other and the water inlet was opened. Similarly, the polarity of the electromagnets on the water inlet covers that had been opened on the water surface changed to the same polarity and the electromagnets on the edge of the water inlet changed to the opposite polarity, and at the same time, under the action of gravity, the water inlet was closed.

[0050] Advantages of the implementation of the present invention: The water jet propulsion device and the double-sided watercraft equipped with the water jet propulsion device described in the present invention, wherein the water jet propulsion device has multiple water inlets and one water outlet, wherein the multiple water inlets are distributed on two water-contacting surfaces, and a water inlet cover is provided at the water inlet, wherein the water inlet cover includes at least one axially rotatable cover plate, wherein the non-axial edge of the cover plate and the edge of the water inlet are respectively provided with magnets that cooperate with each other, wherein the polarity of at least one magnet on the edge can be changed, and further includes a control system for changing the polarity of the magnet to realize the opening and closing of the cover plate and the water inlet; many improvements have been made in the structure of the water inlet spray pump Under the action of the intelligent control system, the front and back sides of the double-sided water unmanned aircraft can be sensed, and the opening and closing states of the water inlet covers on different sides can be controlled by controlling the magnetism of the electromagnets on the water inlet covers and the electromagnets on the body; compared with the traditional double-sided remote-controlled double-sided water unmanned aircraft, both water inlets are in an open state, a large amount of air will enter from the water inlet above the water surface, resulting in low efficiency of the water jet propulsion. Under normal working conditions, the double-sided water unmanned aircraft of the present invention only opens the water inlet below the water surface, avoiding the entry of air from the water inlet on the water surface, greatly improving the pump spraying efficiency, and improving the speed and stability of the double-sided water unmanned aircraft.

[0051] 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 water jet propulsion device, characterized in that: The water jet propulsion device has a plurality of water inlets and a water outlet, wherein the plurality of water inlets are distributed on two water contact surfaces, and a water inlet cover is provided at the water inlet, wherein the water inlet cover includes at least one cover sheet that can rotate axially, and the non-axial edge of the cover sheet and the edge of the water inlet are respectively provided with magnets that cooperate with each other, wherein the polarity of at least one magnet on the edge can be changed, and further includes a control system for changing the polarity of the magnet to realize the opening and closing of the cover sheet and the water inlet; The water jet propulsion device further comprises: a propulsion device body and a shell, the propulsion device body is encapsulated in the shell, a body water outlet and at least two body water inlets are provided on the propulsion device body, a shell water inlet and a shell water outlet are provided on the shell, the shell water inlet is communicated with the body water inlet, the shell water outlet is communicated with the body water outlet, at least two body water inlets are evenly distributed along the circumference of the propulsion device body, each body water inlet is communicated with the body water outlet, an engine and an impeller are installed inside the propulsion device body, the impeller is installed on the engine output shaft, the impeller is arranged at the confluence of the water flow channels of the body water inlet, and is used to inhale water flow and spray water flow; A sensor is provided at the water inlet, and the sensor is connected to a control system. The control system determines whether to open or close the water inlet according to the data at the water inlet collected by the sensor to control the opening or closing of the water inlet cover.

2. The water jet propulsion device according to claim 1, characterized in that: A sealing gasket is provided on the contact surface between the edge of the water inlet and the edge of the cover plate.

3. The water jet propulsion device according to claim 1, characterized in that: When the cover plate and the water inlet are in an open state, the cover plate and the opening plane of the water inlet are fixed at a certain angle to exist as a tail wing.

4. The water jet propulsion device according to any one of claims 1 to 3, characterized in that: The water inlet cover comprises two cover plates, one axial side of the two cover plates is close to each other and meshed through a synchronous gear.

5. The water jet propulsion device according to claim 4, characterized in that: The electromagnets of the two cover plates attract each other when they are turned on, and repel each other when they are turned off.

6. The water jet propulsion device according to claim 4, characterized in that: The water jet propulsion device has two water inlets. When the water jet propulsion device is placed horizontally with its front side facing upward, one of the water inlets is located above the water jet propulsion device, and the other water inlet is located below the water jet propulsion device.

7. A double-surface watercraft, characterized in that: The double-surface watercraft comprises a vehicle body having two water-contacting surfaces and at least one water jet propulsion device according to any one of claims 1 to 6.

8. The double-surface watercraft according to claim 7, characterized in that: The aircraft body has a plurality of connection parts, the number of which is the same as the number of the water jet propulsion devices, and each connection part is connected to a water jet propulsion device.

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