Modularized spray pump propulsion power device of compact type stern-board-free inflatable boat

Abstract

The invention discloses a compact type stern-board-free inflatable boat modularized spray pump propulsion power device which comprises a boat body and a propulsion unit, the boat body comprises a boat body and a side bag, and the propulsion unit comprises a closed waterproof shell. In the application, the waterproof shell power cabin has certain diving capacity and self-buoyancy characteristics, the waterproof shell of the power device replaces the supporting and water-resisting functions of the stern board, or the waterproof shell of the power device is reversely understood that the full-width rigid stern board is expanded into the waterproof shell cavity, the power device is arranged in the cavity, the full-width stern board is not needed, and the waterproof shell is convenient to use. Only 1 / 3-1 / 2 of the width of the original stern plate is needed, the whole stern plate is not needed to serve as a structural part, the power device can be directly connected with the inflatable air bag, the requirement for the strength of the connecting part is low after the whole stern plate is changed into a seat type structure, and then the power device can be directly packaged into an integral air-drop / throwing package. The foldable size is further reduced, meanwhile, the installation process is omitted, and the device can be used after being disassembled.

Description

Technical Field

[0001] The present invention relates to the technical field of power inflatable boats, and particularly to a modular jet pump propulsion power device for a compact inflatable boat without a transom. Background Art

[0002] A power inflatable boat refers to a lightweight watercraft made of inflatable materials and equipped with a small engine or electric motor as the power source. It has the characteristics of easy transportation, rapid deployment, high flexibility, and good safety, and is suitable for use in various water environments, mainly reflected in aircraft maritime search and rescue applications and military applications.

[0003] Chinese Patent Publication No. CN118144972A, published on June 7, 2024, discloses a combined inflatable boat, including a combined inflatable boat body. A mounting plate is fixedly installed at the bottom of the combined inflatable boat body near one side. A fairing is fixedly installed at the bottom of the mounting plate. A grille is fixedly installed near one side of the inner cavity of the fairing. A propeller is fixedly installed on one side of the grille. A cutting assembly is arranged on the other side of the grille. A first filter screen is fixedly installed near the other side of the inner cavity of the grille. Second rectangular openings are respectively formed on the front and rear sides of the inner cavity of the grille near the other side, and the second rectangular openings are all located on the other side of the first filter screen. A processing box is fixedly installed near one side of the top of the combined inflatable boat body.

[0004] For the propulsion power device of existing power inflatable boats such as the above, the standard outboard motor is selected. All products on the market of the standard outboard motor do not have the diving ability and require an independent waterproof package, which increases the cost and weight. The standard outboard motor is only adapted to the transom-mounted installation form. The transom is a rigid component and cannot be folded. The maximum size of the transom determines the minimum size of the inflatable boat when folded, further magnifying the volume disadvantage of the conventional inflatable power boat and the overall power package. Under the structural limitations of these two problems, in order to meet the requirement that the external dimensions of the non-detachable single-body package conform to the upper limit of the through-size of the cabin door, the conventional solution adopts the sub-packaging form to be separately put in. The conventional solution adopts the sub-packaging form to be separately put in. After the placement is completed, inflation and assembly are carried out in the sea water, which will further increase the preparation workload and application response time before the use of the inflatable power boat. Therefore, it is urgent to propose a corresponding modular jet pump propulsion power device for a compact inflatable boat without a transom to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to propose a modular jet pump propulsion power device for a compact inflatable boat without a transom in order to solve the above problems.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A modular jet pump propulsion power device for a compact inflatable boat without a transom, comprising a boat body and a propulsion unit. The boat body includes a hull and side airbags. The propulsion unit includes a closed waterproof housing, which is internally partitioned into a power compartment and a transmission compartment. The bottom of the transmission compartment is embedded in the hull. A drainage channel is fixed inside the transmission compartment, and a blade is rotatably connected inside the drainage channel. A drive assembly for driving the blade is integrated between the power compartment and the transmission compartment.

[0007] Preferably, a diversion port is movably connected to the open end of the drainage channel, and a horizontal adjustment portion for adjusting the horizontal position of the diversion port is integrated outside the drainage channel.

[0008] Preferably, the horizontal adjustment portion includes a deflection cylinder fixedly connected to the outer wall of the drainage channel. The output end of the deflection cylinder is movably connected to a first connecting rod. An outer ring is fixedly connected to the outer wall of the diversion port, and the open end of the outer ring is movably connected to the first connecting rod.

[0009] Preferably, a tail frame and an axial adjustment portion for pushing the axial deflection of the tail frame are integrated on the outer wall of the drainage channel.

[0010] Preferably, for the modular jet pump propulsion power device of a compact inflatable boat without a transom described in claim 4, the axial adjustment portion includes a flipping cylinder fixedly connected to the outer wall of the drainage channel. The output end of the flipping cylinder is rotatably connected to a second connecting rod, and the open end of the second connecting rod is rotatably connected to the outer wall of the tail frame.

[0011] Preferably, a support plate is fixedly connected to the outer wall of the drainage channel. Both the flipping cylinder and the deflection cylinder are fixedly connected to the support plate through fasteners. A connecting seat is fixedly connected to the outer wall of the support plate, and the outer wall of the connecting seat is rotatably connected to the tail frame through a rotating shaft.

[0012] Preferably, extension rods are fixedly connected to one side of both the flipping cylinder and the deflection cylinder away from the support plate, and the open ends of the two extension rods are fixedly connected to the outer wall of the transmission compartment.

[0013] Preferably, the drive assembly includes an engine and a propulsion pump. The engine and the propulsion pump are respectively fixedly connected inside the power compartment and the transmission compartment. The output end of the engine is drivingly connected to the input end of the propulsion pump, and the output end of the propulsion pump is fixedly connected to the blade.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: 1. In this application, the main body of the propulsion unit is a set of waterproof shells, which are divided into a power compartment and a transmission compartment. The engine is fixed in the power compartment, and the propulsion pump and the drainage channel are both fixed in the transmission compartment. The bottom of the transmission compartment is embedded with the hull. The engine transmits power to the propulsion pump through a transmission shaft, and the propulsion pump drives the blades in the drainage channel to rotate, thereby realizing the propulsion of the hull. The triple propulsion force conduction path of "propulsion pump - stern plate - hull" in the traditional solution, which requires the stern plate as a transition structural member, is simplified to a double thrust conduction path of "propulsion pump - hull". The waterproof shell of the power compartment of the waterproof shell has certain diving ability and self-buoyancy characteristics, replacing the support and water isolation functions of the stern plate with the waterproof shell of the power device. Or, conversely, it can be understood that the full-width rigid stern plate is expanded into a waterproof shell chamber with a power device installed inside. There is no need to use a full-width stern plate, and only 1 / 3 to 1 / 2 of the original stern plate width is required. Since there is no need for the entire stern plate as a structural part, the power device can be directly connected to the inflatable airbag, and after changing to a seat structure, the strength requirement for the connection part is lower. Furthermore, it can be directly packaged into an integral airdrop / drop package, further reducing the foldable volume while eliminating the installation process, that is, it can be used immediately after unpacking.

[0015] 2. In this application, the deflection cylinder pulls the first connecting rod, the first connecting rod drives the outer ring in a linkage manner, and the outer ring drives the diversion port to perform a horizontal position offset, thereby realizing the adjustment of the traveling direction of the hull. And the flipping cylinder drives the second connecting rod to move, the second connecting rod drives the tail frame to deflect around the rotating shaft, and by adjusting the shielding area of the diversion port by the tail frame, under the premise that the propulsion pump drives the blades to rotate at a constant speed, the adjustment of the traveling speed of the hull is completed. While ensuring the convenience of adjusting the traveling speed and direction of the hull, the fuel consumption of the propulsion unit can be effectively reduced by maintaining the constant rotation of the propulsion pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows the overall structural schematic diagram provided by an embodiment of the present invention; Figure 2 Shows the hull structural schematic diagram provided by an embodiment of the present invention; Figure 3 Shows the folded hull structural schematic diagram provided by an embodiment of the present invention; Figure 4 Shows the propulsion unit structural schematic diagram provided by an embodiment of the present invention; Figure 5 Shows the power compartment and transmission compartment structural schematic diagram provided by an embodiment of the present invention; Figure 6 Shows the tail frame structural schematic diagram provided by an embodiment of the present invention.

[0017] Legend Explanation: 1. Hull; 101. Boat body; 102. Side bladder; 2. Propulsion unit; 201. Power compartment; 202. Transmission compartment; 3. Drainage channel; 4. Drainage opening; 5. Tail frame; 6. Propulsion pump; 7. Blade; 8. Connecting seat; 9. Tipping cylinder; 10. Deflection cylinder; 11. Outer ring; 12. Link rod 1; 13. Link rod 2; 14. Extension rod. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0019] Please refer to Figure 1-6 , the present invention provides a technical solution: A compact modular jet pump propulsion power device for an inflatable boat without a transom, comprising a hull 1 and a propulsion unit 2. The hull 1 includes a boat body 101 and a side bladder 102. The propulsion unit 2 includes a closed waterproof housing. The interior of the waterproof housing is divided into a power compartment 201 and a transmission compartment 202. The bottom of the transmission compartment 202 is embedded in the boat body 101. A drainage channel 3 is fixed inside the transmission compartment 202. A blade 7 is rotatably connected inside the drainage channel 3. And a driving assembly for driving the blade 7 is integrated between the power compartment 201 and the transmission compartment 202; The main body of the propulsion unit 2 is a group of waterproof housings. The waterproof housing is divided into a power compartment 201 and a transmission compartment 202. The engine is fixed in the power compartment 201. The propulsion pump 6 and the drainage channel 3 are both fixed in the transmission compartment 202. And the bottom of the transmission compartment 202 is embedded with the boat body 101. The engine transmits power to the propulsion pump 6 through a transmission shaft. The propulsion pump 6 drives the blade 7 in the drainage channel 3 to rotate, thereby realizing the propulsion of the hull 1. The triple propulsion force conduction path of the traditional scheme of "propulsion pump - transom - hull" that requires a transom as a transition structural member is simplified to a double thrust conduction path of "propulsion pump - hull". The waterproof housing power compartment has certain diving ability and self-buoyancy characteristics. The waterproof housing of the propulsion unit 2 replaces the support and water isolation functions of the transom. Or, conversely, it can be understood that the full-width rigid transom is expanded into a waterproof shell chamber, and a power device is arranged inside the chamber. There is no need to use a full-width transom, and only 1 / 3 to 1 / 2 of the original transom width is required. Since there is no need for the entire transom as a structural part, the power device can be directly connected to the inflatable airbag. And after changing to a seat type structure, the strength requirement for the connection part is relatively low. Furthermore, it can be directly packaged into an integral airdrop / parachute package, further reducing the foldable volume and eliminating the installation process, that is, it can be used immediately after unpacking; While reducing the volume, the purpose of rapid deployment can be achieved. An effective method is to reduce the length of the unnecessary drive shaft connection part, shorten the total height / length of the power system, and through the short-axis design of the power system. Moreover, since the inflatable boat body adopts a design without a transom, the folding method is not restricted, and the inflatable boat can be folded into any shape. On this basis, the power device and the inflatable boat can be packaged and deployed as a whole without increasing the overall volume. The actual final deployment package size can differ by up to twice. When making an overall package deployment while ensuring a compact volume, it can be inflated at sea and immediately put into use without secondary assembly, shortening the operation input time; Let the core packaging adapt to short-term diving and omit the independent waterproof package to reduce the failure risk. An effective method is to design the core power components from the non-waterproof outer shell of the traditional outboard engine to a waterproof outer shell. After the waterproofing of the whole machine's outer packaging becomes the waterproofing of the internal core components, the waterproofing is no longer placed on the outermost layer, and the probability of water-tight failure caused by the impact of airdrop / throw delivery is greatly reduced.

[0020] Specifically, as Figure 2 and Figure 4 shown, the open end of the drainage channel 3 is movably connected to a diversion port 4, and a horizontal adjustment part for adjusting the horizontal position of the diversion port 4 is integrated on the outer side of the drainage channel 3. The horizontal adjustment part includes a deflection cylinder 10 fixedly connected to the outer wall of the drainage channel 3. The output end of the deflection cylinder 10 is movably connected to a first connecting rod 12. The outer wall of the diversion port 4 is fixedly connected to an outer ring 11. The outer wall of the outer ring 11 is movably connected to the open end of the first connecting rod 12. By pulling the first connecting rod 12 with the deflection cylinder 10, the first connecting rod 12 drives the outer ring 11 in linkage, and the outer ring 11 drives the diversion port 4 to shift horizontally, thereby realizing the adjustment of the traveling direction of the hull 1. An end frame 5 and an axial adjustment part for pushing the axial deflection of the end frame 5 are integrated on the outer wall of the drainage channel 3. The axial adjustment part includes a turning cylinder 9 fixedly connected to the outer wall of the drainage channel 3. The output end of the turning cylinder 9 is rotatably connected to a second connecting rod 13. The open end of the second connecting rod 13 is rotatably connected to the outer wall of the end frame 5. By driving the second connecting rod 13 to move with the turning cylinder 9, the second connecting rod 13 drives the end frame 5 to deflect around the axis of rotation. By adjusting the shielding area of the diversion port 4 by the end frame 5, while the propulsion pump 6 drives the blades 7 to rotate at a constant speed, the adjustment of the traveling speed of the hull 1 is completed. While ensuring the convenience of adjusting the traveling speed and direction of the hull 1, the fuel consumption of the propulsion unit 2 can be effectively reduced by maintaining the uniform rotation of the propulsion pump 6.

[0021] Specifically, as Figure 2 and Figure 3As shown in the figure, a support plate is fixedly connected to the outer surface wall of the drainage channel 3. The tilting cylinder 9 and the deflecting cylinder 10 are both fixedly connected to the support plate through fasteners. A connecting seat 8 is fixedly connected to the outer surface wall of the support plate. The outer surface wall of the connecting seat 8 is rotatably connected to the tail frame 5 through a rotating shaft, which ensures the convenience of disassembly and assembly of the tilting cylinder 9 and the deflecting cylinder 10, and at the same time ensures the stability of the rotation of the tail frame 5. Extension rods 14 are fixedly connected to the sides of the tilting cylinder 9 and the deflecting cylinder 10 away from the support plate. The open ends of the two groups of extension rods 14 are fixedly connected to the outer surface wall of the transmission chamber 202, which further improves the position stability of the tilting cylinder 9 and the deflecting cylinder 10. The drive assembly includes an engine and a propulsion pump 6. The engine and the propulsion pump 6 are respectively fixedly connected inside the power chamber 201 and the transmission chamber 202. The output end of the engine is in transmission connection with the input end of the propulsion pump 6. The output end of the propulsion pump 6 is fixedly connected to the blade 7. The engine transmits power to the propulsion pump 6 through a transmission shaft, and the propulsion pump 6 drives the blade 7 in the drainage channel 3 to rotate, thereby realizing the propulsion of the hull 1.

[0022] Working principle: The main body of the propulsion unit 2 is a group of waterproof shells, which are divided into a power chamber 201 and a transmission chamber 202. The engine is fixed in the power chamber 201, and the propulsion pump 6 and the drainage channel 3 are both fixed in the transmission chamber 202. The bottom of the transmission chamber 202 is embedded with the hull 101. The engine transmits power to the propulsion pump 6 through a transmission shaft, and the propulsion pump 6 drives the blade 7 in the drainage channel 3 to rotate, thereby realizing the propulsion of the hull 1. The triple propulsion force conduction path of the traditional scheme of "propulsion pump - stern plate - hull", which requires the stern plate as a transition structural member, is simplified to a double thrust conduction path of "propulsion pump - hull". The waterproof shell of the power chamber has certain diving ability and self-buoyancy characteristics. The waterproof shell of the propulsion unit 2 replaces the support and water isolation functions of the stern plate. Or, conversely, it can be understood that the full-width rigid stern plate is expanded into a waterproof shell chamber, and a power device is installed inside the chamber. There is no need to use a full-width stern plate, and only 1 / 3 to 1 / 2 of the original stern plate width is required. Since there is no need for the entire stern plate as a structural part, the power device can be directly connected to the inflatable airbag, and after changing to a seat structure, the strength requirement for the connection part is relatively low. Furthermore, it can be directly packaged as an integral airdrop / throw package, further reducing the foldable volume and eliminating the installation process, that is, it can be used immediately after unpacking. By pulling the connecting rod 12 by the deflecting cylinder 10, the connecting rod 12 drives the outer ring 11, and the outer ring 11 drives the diversion port 4 to perform a horizontal position offset, thereby realizing the adjustment of the traveling direction of the hull 1. By driving the connecting rod 13 to move by the tilting cylinder 9, the connecting rod 13 drives the tail frame 5 to deflect around the rotating shaft. By adjusting the shielding area of the tail frame 5 for the diversion port 4, on the premise that the propulsion pump 6 drives the blade 7 to rotate at a constant speed, the adjustment of the traveling speed of the hull 1 is completed, ensuring the convenience of adjusting the traveling speed and direction of the hull 1. At the same time, by maintaining the constant rotation of the propulsion pump 6, the fuel consumption of the propulsion unit 2 can be effectively reduced.

[0023] The foregoing description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular jet propulsion power device for a compact transom-less inflatable boat, comprising a boat body (1) and a propulsion unit (2), characterized in that: The hull (1) comprises a hull (101) and a side bag (102); the propulsion unit (2) comprises a closed waterproof shell; the interior of the waterproof shell is divided into a power compartment (201) and a transmission compartment (202); the bottom of the transmission compartment (202) is embedded in the hull (101); the drainage channel (3) is fixed inside the transmission compartment (202); blades (7) are rotatably connected inside the drainage channel (3); and a drive component for driving the blades (7) is integrated between the power compartment (201) and the transmission compartment (202).

2. A modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 1, characterized in that: The open end of the drainage channel (3) is movably connected to a drainage port (4), and a horizontal adjustment portion for adjusting the horizontal position of the drainage port (4) is integrated on the outside of the drainage channel (3).

3. A modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 2, characterized in that: The horizontal adjustment portion comprises a deflection cylinder (10) fixedly connected to the outer wall of the drainage channel (3); the output end of the deflection cylinder (10) is movably connected to a connecting rod 1 (12); the outer wall of the guide port (4) is fixedly connected to an outer ring (11); the outer wall of the outer ring (11) is movably connected to the open end of the connecting rod 1 (12).

4. A modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 3, characterized in that: The outer wall of the drainage channel (3) is integrated with a tail frame (5) and an axial adjustment portion for promoting the axial deflection of the tail frame (5).

5. A modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 4, characterized in that: The axial adjustment portion comprises a tilting cylinder (9) fixedly connected to the outer wall of the drainage channel (3); the output end of the tilting cylinder (9) is rotatably connected to a second connecting rod (13); the open end of the second connecting rod (13) is rotatably connected to the outer wall of the tail frame (5).

6. A modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 5, characterized in that: The outer wall of the drainage channel (3) is fixedly connected to a support plate, the tilting cylinder (9) and the deflection cylinder (10) are both fixedly connected to the support plate via fasteners, the outer wall of the support plate is fixedly connected to a connecting seat (8), and the outer wall of the connecting seat (8) is rotatably connected to the tail frame (5) via a rotating shaft.

7. A modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 6, characterized in that: The tilting cylinder (9) and the deflection cylinder (10) are both fixedly connected to extension rods (14) on the side away from the support plate, and the open ends of the two groups of extension rods (14) are both fixedly connected to the outer wall of the transmission bin (202).

8. The modular jet pump propulsion power device for a compact transom-less inflatable boat according to claim 7, characterized in that: The driving assembly comprises an engine and a propulsion pump (6), wherein the engine and the propulsion pump (6) are respectively fixedly connected inside a power compartment (201) and a transmission compartment (202), wherein an output end of the engine is transmission-connected to an input end of the propulsion pump (6), and an output end of the propulsion pump (6) is fixedly connected to a blade (7).

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