An outboard motor underwater hull auxiliary water inlet structure

Abstract

The utility model relates to a kind of outboard motor underwater shell auxiliary water inlet structure, including underwater shell, underwater shell is provided with main waterway and auxiliary waterway, the outlet of auxiliary waterway is connected to main waterway, auxiliary waterway is set up at angle with main waterway;The outboard motor underwater shell auxiliary water inlet structure of the present application, by setting up auxiliary waterway at angle with main waterway, when main water inlet is blocked by sundries, auxiliary waterway still can provide cooling water, solve the problem that traditional single water inlet structure is easy to fail, with the advantages of improving cooling system reliability and equipment adaptability.

Description

Technical Field

[0001] This utility model relates to the field of electric outboard motor technology, and more specifically, to an auxiliary water inlet structure for the underwater hull of an outboard motor. Background Technology

[0002] Outboard motors, as a common type of watercraft, bring many conveniences to people's lives, production, and recreation. However, when used in rivers or lakes with weeds and debris, the underwater hull of the outboard motor is easily entangled by debris, and the main water inlet screen can become blocked, leading to insufficient water supply to the water pump impeller and damage, as well as insufficient engine cooling and overheating. Especially in complex aquatic environments, the traditional single-inlet design often cannot guarantee a continuous and stable supply of cooling water. When the main water inlet is blocked by debris, the entire cooling system faces the risk of failure, seriously affecting the safety and reliability of the outboard motor. In addition, existing technologies lack effective auxiliary water inlet designs, failing to provide a backup cooling channel when the main water inlet is blocked, resulting in insufficient adaptability of the equipment in harsh aquatic environments.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0004] In view of this, the present invention provides an auxiliary water inlet structure for the underwater hull of an outboard engine, which transforms the traditional single water inlet structure into a composite water inlet structure by adding an auxiliary water channel. This utility model discloses an auxiliary water intake structure for the underwater hull of an outboard motor, including an underwater hull, a main waterway and an auxiliary waterway, the outlet of the auxiliary waterway being connected to the main waterway, and the auxiliary waterway being set at an angle to the main waterway.

[0005] Furthermore, the underwater hull has a ballast plate, and the inlet of the auxiliary waterway is located away from the main waterway on the bottom surface of the ballast plate, so that the auxiliary waterway is at an angle to the main waterway.

[0006] Furthermore, it also includes a main water inlet cover plate, which is equipped with a main water inlet grille. The side wall of the underwater hull is provided with a main water inlet, which is connected to the main waterway. The main water inlet cover plate is detachably installed at the main water inlet.

[0007] Furthermore, it also includes an auxiliary water inlet cover plate, which is equipped with an auxiliary water inlet grille. An auxiliary water inlet is opened on the bottom surface of the pressure plate, and the auxiliary water inlet is connected to the auxiliary water channel. The auxiliary water inlet cover plate is detachably installed on the auxiliary water inlet.

[0008] Furthermore, the auxiliary water inlet grille and the auxiliary water inlet cover are set at an angle.

[0009] Furthermore, the outlets of both the auxiliary inlet and the auxiliary waterway are located above the main inlet.

[0010] Furthermore, it also includes a water pump, which is installed in the underwater hull. The main waterway is connected to the water pump, and the outlet of the auxiliary waterway is located between the water pump and the main water inlet.

[0011] The beneficial effects of this utility model are: This utility model discloses an auxiliary water inlet structure for the underwater hull of an outboard engine. By setting an auxiliary waterway at an angle to the main waterway, the auxiliary waterway can still provide cooling water when the main water inlet is blocked by debris. This solves the problem of easy failure of traditional single water inlet structures and has the advantages of improving the reliability of the cooling system and the adaptability of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the assembly structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the main water inlet cover of this utility model; Figure 4 This is a schematic diagram of the structure of the auxiliary water inlet cover of this utility model; Figure 5 This is a schematic diagram of the underwater hull structure of this utility model; Reference numerals: 1. Underwater hull; 2. Main waterway; 3. Auxiliary waterway; 4. Main inlet cover; 5. Auxiliary inlet cover; 6. Water pump; 8. Main inlet; 9. Main inlet grille; 10. Auxiliary inlet grille; 11. Auxiliary inlet; 12. Installation channel. Detailed Implementation

[0013] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments. It should be noted that in the description of this specification, the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0014] like Figure 1As shown, this utility model specifically discloses an auxiliary water inlet structure for an outboard motor underwater hull 1, including an underwater hull 1. The underwater hull 1 is provided with a main waterway 2 and an auxiliary waterway 3. The outlet of the auxiliary waterway 3 is connected to the main waterway 2, and the auxiliary waterway 3 is set at an angle to the main waterway 2. The main waterway 2 is the main channel located inside the underwater hull 1 for guiding the flow of cooling water. It can be implemented using an internal through-pipe structure. Its function is to provide a stable cooling water supply path for the water pump 6. The auxiliary waterway 3 is a secondary water flow channel connected to the main waterway 2. It can be implemented using a branch pipe or an independent slotted structure. Its function is to supplement the cooling water flow through its connection with the main waterway 2, avoiding insufficient water supply caused by blockage of a single channel. The angled setting means that the axial direction of the auxiliary waterway 3 and the main waterway 2 forms a non-parallel spatial layout. It can be designed in an inclined or perpendicular intersecting manner. Its function is to reduce the probability of debris accumulation near the water inlet by utilizing the difference in water flow direction. By setting the main waterway 2 and auxiliary waterway 3 at an angle inside the underwater hull 1, the branch structure of the auxiliary waterway 3 is used to maintain the cooling water supply when the main waterway 2 is blocked. At the same time, the angle difference reduces the possibility of debris blocking both channels at the same time, thereby improving the operational reliability of the outboard motor in complex waters.

[0015] In this embodiment, the underwater hull 1 has a pressure plate, and the inlet of the auxiliary waterway 3 is located away from the main waterway 2 on the bottom surface of the pressure plate, so that the auxiliary waterway 3 is at an angle to the main waterway 2. In this embodiment, the inlet of the auxiliary waterway 3 is laterally away from the main waterway 2, which ensures that the auxiliary waterway 3 is set at an angle to the main waterway 2, improves the water flow direction, and increases the water intake efficiency.

[0016] This embodiment also includes a main water inlet cover plate 4, which is equipped with a main water inlet grille 9. A main water inlet 8 is located on the side wall of the underwater hull 1, and the main water inlet 8 communicates with the main water channel 2. The main water inlet cover plate 4 is detachably installed on the main water inlet 8. In this embodiment, the main water inlet grille 9 is integrally formed on the main water inlet cover plate 4 to prevent debris from entering the main water channel 2. There is one main water inlet 8 on each side of the underwater hull 1, and they are symmetrical. Both main water inlets 8 are equipped with main water inlet cover plates 4. One end of the main water inlet cover plate 4 is snapped into the main water inlet 8 of the underwater hull 1, and the other end is fixed to the underwater hull 1 with bolts. The main water inlet cover plate 4 covers the entire main water inlet 8, ensuring that after installation, water flows only through the main water inlet grille 9 into the main water channel 2. The main water inlet cover plate 4 is made of reinforced nylon material to ensure the strength of the parts and prevent corrosion, thereby extending its service life in humid environments.

[0017] In this embodiment, an auxiliary water inlet cover plate 5 is also included. The auxiliary water inlet cover plate 5 is provided with an auxiliary water inlet grille 10. An auxiliary water inlet 11 is opened on the bottom surface of the pressure plate. The auxiliary water inlet 11 is connected to the auxiliary water channel 3. The auxiliary water inlet cover plate 5 is detachably installed on the auxiliary water inlet 11. As shown in the figure, the water flow enters the auxiliary water channel 3 only through the auxiliary water inlet grille 10. When the auxiliary water inlet cover plate 5 introduces water flow through the auxiliary water inlet grille 10, if the grille and the cover plate are on the same plane and the water flow direction is perpendicular to the grille surface, in waters with a lot of debris, the impurities carried by the water flow are likely to directly impact the grille surface and stagnate, increasing the risk of grille blockage. Therefore, in this embodiment, the auxiliary water inlet grille 10 and the auxiliary water inlet cover plate 5 are set at an angle. The extension direction of the blades of the auxiliary water inlet grille 10 forms an acute angle with the normal direction of the mounting surface of the auxiliary water inlet cover plate 5. A guide groove is provided inside the auxiliary water inlet 11, and the extension direction of the guide groove is consistent with the tilting direction of the grille. When water flows through the auxiliary inlet grille 10, the water flow direction forms a non-perpendicular angle with the auxiliary inlet grille 10 due to the grille's inclination. Suspended matter in the water flows slides along the inclined grille surface to the edge of the cover plate, preventing accumulation on the front of the grille. The guide channel guides the water flow into the auxiliary waterway 3 along the inclined direction of the grille, reducing water turbulence. In this embodiment, the auxiliary waterway 3 is a detachable water pipe. An inclined installation channel 12 is opened in the underwater shell 1. One end of the auxiliary waterway 3 is inserted into the main waterway 2, and the other end is connected to the auxiliary inlet cover plate 5. The auxiliary inlet cover plate 5 is then bolted to the bottom surface of the pressure plate, thus completing the installation and setting of the auxiliary waterway 3.

[0018] In this embodiment, the outlets of both the auxiliary inlet 11 and the auxiliary water channel 3 are located above the main inlet 8. The auxiliary inlet 11 is positioned higher than the main inlet 8 to prevent the main inlet 8 from affecting the auxiliary inlet 11 during operation. The outlet of the auxiliary water channel 3 is located above the main inlet 8 and connects to the main water channel 2. When the main inlet 8 is blocked, water from the auxiliary water channel 3 can be injected into the main water channel 2 from a higher position, preventing the water pump 6 from running dry due to a blockage in the main water channel 2. The tilt angle between the auxiliary inlet grille 10 and the cover plate further guides the water flow direction, enhancing the filtration effect. The positional relationship between the outlet of the auxiliary water channel 3 and the water pump 6 ensures that water flows preferentially through the water pump 6, preventing water shortage in the water pump 6 due to blockage in the main water channel 2. Furthermore, this layout allows the auxiliary water intake system to introduce water at a higher position, avoiding debris at the bottom of the water.

[0019] In this embodiment, a water pump 6 is also included. The water pump 6 is installed in the underwater housing 1. The main water channel 2 is connected to the water pump 6, and the outlet of the auxiliary water channel 3 is located between the water pump 6 and the main water inlet 8. The outlet of the auxiliary water channel 3 is located in the same main water channel 2 as the main water inlet 8, but in front of the water pump 6's inlet. When the main water inlet 8 is blocked by debris, causing a decrease in the flow rate of the main water channel 2, the outlet of the auxiliary water channel 3 continues to supplement the main water channel 2 with water. The water flow directly enters the water pump 6's inlet, preventing the water pump 6 from running dry due to lack of water. The water pump 6 continuously draws in the water flow provided by the auxiliary water channel 3 and the main water inlet 8 through the main water channel 2, maintaining the cooling water pressure required for impeller operation and preventing the engine from shutting down due to high temperature. The design of the auxiliary water channel 3 outlet position ensures that even when the main water inlet 8 is partially blocked, the water pump 6 can still preferentially obtain water flow from the auxiliary water channel 3, improving system redundancy.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An auxiliary water inlet structure for the underwater hull of an outboard engine, characterized in that: The device includes an underwater hull, which has a main waterway and an auxiliary waterway. The outlet of the auxiliary waterway is connected to the main waterway, and the auxiliary waterway is angled relative to the main waterway. The underwater hull has a ballast plate, and the inlet of the auxiliary waterway is located away from the main waterway on the bottom surface of the ballast plate, so that the auxiliary waterway is angled relative to the main waterway. It also includes a main water inlet cover plate, which is equipped with a main water inlet grille. The side wall of the underwater hull is provided with a main water inlet, which is connected to the main waterway. The main water inlet cover plate is detachably installed at the main water inlet. It also includes an auxiliary water inlet cover, which is equipped with an auxiliary water inlet grille. An auxiliary water inlet is provided on the bottom surface of the pressure plate and is connected to the auxiliary water channel. The auxiliary water inlet cover is detachably installed at the auxiliary water inlet. It also includes a water pump, which is installed in the underwater hull. The main waterway is connected to the water pump, and the outlet of the auxiliary waterway is located between the water pump and the main water inlet.

2. The auxiliary water inlet structure for an outboard engine underwater hull according to claim 1, characterized in that: The auxiliary water inlet grille is set at an angle to the auxiliary water inlet cover.

3. The auxiliary water inlet structure for an outboard engine underwater hull according to claim 1, characterized in that: The auxiliary water inlet and the outlet of the auxiliary waterway are both located above the main water inlet.

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