Oil supply device with one-way valve function

Abstract

The utility model relates to an oil supply device with one-way valve function, including oil tank, oil pump, oil pot mechanism, first pipeline is fixedly established on the oil tank and is fixedly established on the oil pump on the other end first pipeline, one end is fixedly established on the oil pump and is fixedly established on the oil pot mechanism on the other end second pipeline, one end is fixedly established on the oil pot mechanism and is fixedly established on the oil tank on the other end third pipeline, the oil pot mechanism includes oil pot body, oil pot cover is rotatory established on the oil pot body, is established on the oil pot cover and the anti -backflow subassembly of oil pot body.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle fuel supply technology, specifically to a fuel supply device with a one-way valve function. Background Technology

[0002] A motorcycle's fuel supply system includes a fuel tank, fuel pump, fuel reservoir, carburetor, and other components. When the motorcycle starts, the fuel pump draws gasoline from the tank and pumps some of it into the fuel reservoir, which then flows into the carburetor. After the motorcycle is turned off, due to pressure differences, fuel in the carburetor is drawn back into the fuel reservoir, and then flows back into the fuel tank along with fuel in the reservoir. This results in the carburetor not having any stored fuel when restarting, requiring the fuel pump to pump fuel back into the fuel reservoir and carburetor. Consequently, the motorcycle takes a long time to start, has difficulty accelerating after starting, and may even cause the battery to run out of power and prevent starting. Therefore, a fuel supply device with a one-way valve is needed to prevent fuel from flowing back into the carburetor after the motorcycle is turned off. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section above, some embodiments of this application provide an oil supply device with a one-way valve function, including an oil tank, an oil pump, an oil reservoir mechanism, a first pipe with one end fixed to the oil tank and the other end fixed to the oil pump, a second pipe with one end fixed to the oil pump and the other end fixed to the oil reservoir mechanism, and a third pipe with one end fixed to the oil reservoir mechanism and the other end fixed to the oil tank; the oil reservoir mechanism includes an oil reservoir body, an oil reservoir cap rotatably mounted on the oil reservoir body, and an anti-backflow component mounted on the oil reservoir cap and the oil reservoir body.

[0005] Specifically, the anti-backflow assembly includes a return column fixed on the oil reservoir body, a fourth pipe fixed on the return column and connected to the third pipe, a first groove fixed on the return column, a sealing cap fixed on the oil reservoir lid, a cavity fixed on the sealing cap and the oil reservoir lid, a fifth pipe fixed on the sealing cap and communicating with the cavity, a filter screen fixed on the fifth pipe, and a sliding device disposed in the cavity.

[0006] Specifically, the cavity device includes a first through hole fixed on the oil can lid, multiple arc-shaped protrusions fixed on the oil can lid, a limiting post slidably disposed on the first through hole, a connecting rod fixed on the limiting post, a float plate fixed on the other end of the connecting rod, a sealing plate fixed on the limiting post, multiple arc-shaped grooves fixed on the sealing plate, and a first protrusion fixed on the float plate.

[0007] Specifically, the oil can body is provided with a second through hole; the second through hole is connected to a second pipe.

[0008] Specifically, the oil can body is provided with a third through hole; the third through hole is provided with a sixth pipe.

[0009] Specifically, the oil pump is equipped with a seventh pipe.

[0010] The beneficial effects of this utility model are:

[0011] (1) An anti-backflow component is provided to prevent fuel backflow in the carburetor. After the fuel pump starts working, the fuel in the tank is pumped into the fuel can body through the second through hole. The fuel level rises continuously, and at the same time, some fuel flows out from the third through hole and enters the carburetor through the sixth pipe. The fuel pumping speed is greater than the carburetor consumption speed, so the fuel level will continue to rise. After reaching the float position, the buoyancy will push the float upward, which in turn will drive the sealing plate to move upward. During the movement, the float will disengage from the return column, and some fuel will return to the tank through the fourth pipe. Because the carburetor itself does not require very high fuel pressure, while the fuel pump has very high fuel pressure, the fuel level will continue to rise. When the float rises, the sealing plate will also rise in the cavity. The arc-shaped protrusion and the arc-shaped groove slide relative to each other to create a through groove. The fuel can body is connected to the fifth pipe, and the air in the fuel can body will be continuously discharged as the fuel level rises. When the sealing plate rises to the top, the fuel can returns to a sealed state, and the fuel level is higher than the return column, indicating a stable operating state. When the motorcycle is turned off, the fuel pump stops pumping fuel, and the carburetor stops working. At this time, the air pressure at the carburetor is equal to the outside air pressure, and the fuel in the fuel can returns through the fourth pipe. The sealing plate moves slightly downward under its own weight. Since the side walls of the sealing cap and the sealing plate have the same inclination angle, a gap is created between the two side walls during the descent, reconnecting the fuel can to the outside air pressure. The air pressure is equal to atmospheric pressure, and the sealing plate continues to move downward due to its own weight. The fuel in the carburetor is not completely forced into the fuel can due to the air pressure difference. The fuel level drops to the same height as the return column and stops. When starting for the second time, there is fuel in the carburetor, allowing for a quick start. The fuel level will also rise from the same height as the return column, allowing for a faster return to a stable operating state. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is the left view of the present invention;

[0017] Figure 3 for Figure 2 A cross-sectional view of AA;

[0018] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0019] Figure 5 for Figure 3 A magnified view of a section at point C;

[0020] Figure 6 This is a schematic diagram of part of the structure of this utility model;

[0021] Figure 7 This is a partial structural cross-sectional view of the present invention when it is in working condition. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0025] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Reference Figures 1-7 As shown, the fuel supply device with a one-way valve function of this utility model includes a fuel tank 1, a fuel pump 2, a fuel can mechanism 3, a first pipe 4 fixed at one end to the fuel tank 1 and the other end fixed to the fuel pump 2, a second pipe 5 fixed at one end to the fuel pump 2 and the other end fixed to the fuel can mechanism 3, and a third pipe 6 fixed at one end to the fuel can mechanism 3 and the other end fixed to the fuel tank 1; the fuel can mechanism 3 includes a fuel can body 31, a fuel can cover 32 rotatably mounted on the fuel can body 31, and an anti-backflow component 33 mounted on the fuel can cover 32 and the fuel can body 31; the fuel tank and the fuel pump are existing technologies; when the fuel pump is working, it pumps fuel from the fuel tank into the fuel can body from the first pipe and the second pipe.

[0028] Specifically, the anti-backflow component 33 includes a return column 331 fixedly mounted on the oil reservoir body 31, a fourth pipe 333 fixedly mounted on the return column 331 and connected to the third pipe 6, a first groove 334 fixedly mounted on the return column 331, a sealing cap 335 fixedly mounted on the oil reservoir cover 32, a cavity 336 fixedly mounted on the sealing cap 335 and the oil reservoir cover 32, a fifth pipe 337 fixedly mounted on the sealing cap 335 and communicating with the cavity 336, a filter screen 338 fixedly mounted on the fifth pipe 337, and a sliding device 339 disposed in the cavity 336; the return column is relatively high.

[0029] Specifically, the cavity device 339 includes a first through hole 3391 fixedly disposed on the oil reservoir cap 32, a plurality of arc-shaped protrusions 3392 fixedly disposed on the oil reservoir cap 32, a limiting post 3393 slidably disposed on the first through hole 3391, a connecting rod 3394 fixedly disposed on the limiting post 3393, a float plate 3395 fixedly disposed on the other end of the connecting rod 3394, a sealing plate 3396 fixedly disposed on the limiting post 3393, a plurality of arc-shaped grooves 3397 fixedly disposed on the sealing plate 3396, and a first protrusion 3398 fixedly disposed on the float plate 3395; the float plate can float on the fuel; the limiting post is used for limiting and can prevent the sealing plate from completely separating from the arc-shaped protrusions; since the arc-shaped protrusions and arc-shaped grooves will not completely separate, the limiting post It can only move vertically and cannot rotate to prevent misalignment between the arc-shaped groove and the arc-shaped protrusion. The side of the arc-shaped protrusion that contacts the limiting block has a through groove. When the limiting block moves upward, the through groove will connect with the first through hole. The inner wall of the sealing cover is arc-shaped, and the side wall has an inclined angle. The top of the sealing plate has an arc-shaped surface that can fit against the inner wall of the sealing cover. The inclined angle of the side of the sealing plate is the same as that of the side wall of the sealing cover. That is, when the sealing plate is located at the top of the cavity, the upper arc surface and side wall of the sealing plate are completely fitted against the inner wall and side wall of the sealing cover. When the sealing plate is separated from the sealing cover, there is a gap between the side wall of the sealing plate and the side wall of the sealing cover. Outside air can enter the cavity through the fifth pipe and enter the first through hole through the through groove on the side of the arc-shaped protrusion that contacts the limiting block, and then enter the oil can body.

[0030] Specifically, the oil can body 31 is provided with a second through hole 311; the second through hole 311 is connected to the second pipe 5.

[0031] Specifically, the oil can body 31 is provided with a third through hole 312; the third through hole 312 is provided with a sixth pipe 7; the sixth pipe is connected to the carburetor, which is existing technology.

[0032] Specifically, the oil pump 3 is equipped with a seventh pipe 8; the seventh pipe is connected to the negative pressure source on the engine.

[0033] Initially, the sealing plate is located at the bottom of the cavity, the first protrusion and the first groove are in contact, and the arc-shaped protrusion and the arc-shaped groove are completely in contact. After the fuel pump starts working, it pumps fuel from the tank into the fuel can body through the second through hole, and the fuel level rises continuously. At the same time, some fuel flows out from the third through hole and enters the carburetor through the sixth pipe. The fuel pumping speed is greater than the carburetor's consumption speed, so the fuel level will continue to rise. After reaching the float position, buoyancy will push the float upward, which in turn will drive the sealing plate to move upward. During the movement, the float loses contact with the return column, and some fuel flows back to the tank through the fourth pipe. Because the carburetor itself does not require very high fuel pressure, while the fuel pump has very high fuel pressure, the fuel level will continue to rise. When the float rises, the sealing plate also rises in the cavity. The arc-shaped protrusion and the arc-shaped groove slide relative to each other, creating a through groove. The fuel can body is connected to the fifth pipe, and the air in the fuel can body will flow with the fuel. As the fuel level rises, it is continuously discharged. When the sealing plate rises to the top, the fuel can returns to a sealed state, and the fuel level is higher than the return column, indicating a stable operating state. When the motorcycle is turned off, the fuel pump stops pumping fuel, and the carburetor stops working. At this time, the air pressure at the carburetor is equal to the outside air pressure. The fuel in the fuel can will return through the fourth pipe section. The sealing plate moves slightly downward under its own weight. Since the side walls of the sealing cap and the sealing plate have the same inclination angle, a gap will be created between the two side walls when it descends, reconnecting the fuel can to the outside. The air pressure is equal to atmospheric pressure, and the sealing plate will continue to move downward due to its own weight. The fuel in the carburetor will not be completely forced into the fuel can due to the air pressure difference. The fuel level drops to the same height as the return column and stops. When starting for the second time, there is fuel in the carburetor, allowing for a quick start. The fuel level will also rise from the same height as the return column, allowing for a more rapid return to a stable operating state.

[0034] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An oil supply device with a one-way valve function, characterized in that: It includes an oil tank (1), an oil pump (2), an oil can mechanism (3), a first pipe (4) fixed at one end on the oil tank (1) and the other end fixed on the oil pump (2), a second pipe (5) fixed at one end on the oil pump (2) and the other end fixed on the oil can mechanism (3), and a third pipe (6) fixed at one end on the oil can mechanism (3) and the other end fixed on the oil tank (1); the oil can mechanism (3) includes an oil can body (31), an oil can cover (32) rotatably mounted on the oil can body (31), and an anti-backflow component (33) mounted on the oil can cover (32) and the oil can body (31).

2. The oil supply device with a one-way valve function according to claim 1, characterized in that: The backflow prevention assembly (33) includes a return column (331) fixed on the oil reservoir body (31), a fourth pipe (333) fixed on the return column (331) and connected to the third pipe (6), a first groove (334) fixed on the return column (331), a sealing cap (335) fixed on the oil reservoir cover (32), a cavity (336) fixed on the sealing cap (335) and the oil reservoir cover (32), a fifth pipe (337) fixed on the sealing cap (335) and connected to the cavity (336), a filter screen (338) fixed on the fifth pipe (337), and a sliding device (339) in the cavity (336).

3. The oil supply device with a one-way valve function according to claim 2, characterized in that: The cavity device (339) includes a first through hole (3391) fixed on the oil can cover (32), a plurality of arc-shaped protrusions (3392) fixed on the oil can cover (32), a limiting post (3393) slidably disposed on the first through hole (3391), a connecting rod (3394) fixed on the limiting post (3393), a float plate (3395) fixed on the other end of the connecting rod (3394), a sealing plate (3396) fixed on the limiting post (3393), a plurality of arc-shaped grooves (3397) fixed on the sealing plate (3396), and a first protrusion (3398) fixed on the float plate (3395).

4. The oil supply device with a one-way valve function according to claim 1, characterized in that: The oil can body (31) is provided with a second through hole (311); the second through hole (311) is connected to the second pipe (5).

5. The oil supply device with a one-way valve function according to claim 1, characterized in that: The oil can body (31) is provided with a third through hole (312); the third through hole (312) is provided with a sixth pipe (7).

6. The oil supply device with a one-way valve function according to claim 1, characterized in that: The oil pump (3) is equipped with a seventh pipe (8).

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