Motorcycle fuel tank dumping valve

Abstract

The utility model belongs to the technical field of dumping valves, and particularly relates to a motorcycle fuel tank dumping valve which comprises a fuel tank body. An anti-toppling mechanism is arranged at the bottom end of the side face of the oil tank body, a fixing mechanism is arranged at one end of the anti-toppling mechanism, a limiting mechanism is arranged on the inner side of the anti-toppling mechanism and comprises a lower valve cavity, a vent hole is formed in the bottom end of the lower valve cavity, and guide ribs are evenly fixed to the circumferential face of the inner side of the lower valve cavity. A conical plug pin is slidably mounted on the inner side of the lower valve cavity, the conical plug pin is slidably connected with the guide rib, the conical plug pin is slidably mounted on the inner side of the lower valve cavity under the cooperation of the guide rib, and when the motorcycle fuel tank topples over, the conical plug pin linearly slides on the inner side of the lower valve cavity under the action of gravity at the moment. And the bottom end of the conical bolt is accurately buckled on the inner side of the vent hole to seal the vent hole, so that fuel oil in the oil tank is prevented from leaking, and the problem of leakage of the dumping valve caused by insufficient concentricity of a conical part is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tipping valves, in particular to a motorcycle fuel tank tipping valve. Background Technique

[0002] A motorcycle is a common means of transportation in daily life. To ensure that the fuel tank can supply fuel to it normally, the fuel tank usually cooperates at the air supply place to maintain the air passage. To prevent fuel leakage from the fuel tank when the motorcycle is tipped over, a tipping valve is usually installed at its air supply place to block it when the motorcycle is tipped over and prevent oil leakage.

[0003] When blocking the fuel tank, the existing tipping valve takes the valve body as the main body. A round hole is arranged at the bottom end inside the valve body. A conical part is slidably installed inside the valve body, and the conical part is located above the round hole. The round hole at the bottom side of the valve body is connected to the air supply end of the fuel tank. If the motorcycle is tipped over during use, the conical part slides inside the valve body, thereby blocking the round hole inside it, sealing the fuel tank, and preventing fuel leakage inside the fuel tank to ensure the normal use of the motorcycle.

[0004] However, during the use of the current tipping valve, the concentricity of the conical part product inside it is insufficient, and it will not be able to perfectly block the round hole at its bottom side. At this time, the tipping valve will leak, resulting in fuel leakage inside the motorcycle fuel tank and making it unable to be used normally. Therefore, a motorcycle fuel tank tipping valve is proposed. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology, the concentricity of the conical part product inside the tipping valve on the market is insufficient, and it will not be able to perfectly block the round hole at its bottom side. At this time, the tipping valve will leak, resulting in fuel leakage inside the motorcycle fuel tank and making it unable to be used normally. The utility model proposes a motorcycle fuel tank tipping valve.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a motorcycle fuel tank tipping valve described in the utility model includes a fuel tank body; a tipping prevention mechanism is arranged at the bottom end of the side of the fuel tank body, a fixing mechanism is arranged at one end of the tipping prevention mechanism, a limiting mechanism is arranged inside the tipping prevention mechanism, and a lower valve cavity is opened inside the limiting mechanism.

[0007] Preferably, the limiting mechanism includes a lower valve cavity. An air vent hole is opened at the bottom end of the lower valve cavity. Guide ribs are uniformly fixed on the circumferential surface inside the lower valve cavity. A conical plug is slidably installed inside the lower valve cavity. The conical plug is slidably connected with the guide ribs. A conduit is connected to the bottom end of the side of the fuel tank body. A valve core seat is fixed at one end of the conduit. Using guide ribs, which are simple geometric shapes, is convenient for production and processing, and at the same time can limit the conical plug to prevent the tipping valve from leaking.

[0008] Preferably, the anti-tipping mechanism includes a valve core seat. An upper valve cavity is provided inside the valve core seat. An installation seat is arranged at the top end inside the upper valve cavity. A threaded rod is fixed to the bottom side of the installation seat. A connecting seat is arranged inside the upper valve cavity and is located at the bottom side of the installation seat. A threaded groove is provided inside the connecting seat. The threaded rod is fixedly connected to the connecting seat through cooperation with the threaded groove. A limiting groove is provided at the bottom end inside the connecting seat. A conical pin is slidably inserted through the limiting groove. An installation sleeve is arranged at the top side of the valve core seat. Fixed by the cooperation of the threaded rod and the threaded groove, it is convenient for disassembly and assembly. At the same time, it can assist in limiting the conical pin to prevent the fuel inside the fuel tank from being affected due to the position deviation of the conical pin during use.

[0009] Preferably, the fixing mechanism includes an installation sleeve. A ventilation cover is installed on the top side of the installation sleeve. An air outlet is arranged at the bottom end inside the ventilation cover. An air inlet pipe is fixed to the top side of the ventilation cover. A sealing block is arranged at the bottom side of the ventilation cover. The sealing block is buckled inside the installation sleeve. Using the sealing block, which is made of rubber, to seal and connect the ventilation cover and the valve core seat to prevent fuel from leaking at their connection.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the structural design of a tipping valve for a motorcycle fuel tank, by setting a limiting mechanism, the conical pin is slidably installed inside the lower valve cavity under the cooperation of the guiding rib strips. When the motorcycle fuel tank is not tipped, the conical pin is located above the ventilation hole. If the motorcycle fuel tank is tipped, at this time, under the action of gravity, the conical pin slides linearly inside the lower valve cavity, and the bottom end of the conical pin is accurately buckled inside the ventilation hole to close it, thereby preventing the fuel inside the fuel tank from leaking and solving the problem of leakage of the tipping valve caused by insufficient concentricity of the conical part.

[0012] 2. Through the structural design of a tipping valve for a motorcycle fuel tank, by setting an anti-tipping mechanism, a connecting seat is installed inside the valve core seat, and then the installation seat is installed on the top side of the connecting seat through the cooperation of the threaded rod and the threaded groove. A conical pin is slidably installed inside the connecting seat through the cooperation of the limiting groove. When the motorcycle is not tipped, the fuel tank maintains an air passage through the cooperation of the upper valve cavity inside the valve core seat. If it is tipped, the conical pin extends out of the limiting groove to close the ventilation hole, thereby ensuring the safe use of the motorcycle. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a front view three-dimensional structure sectional view of the limiting mechanism;

[0015] Figure 2 It is a front view three-dimensional structure sectional view of a partial structure;

[0016] Figure 3 It is a top view three-dimensional structure schematic diagram of a partial structure;

[0017] Figure 4 It is a front view three-dimensional structure schematic diagram of the whole.

[0018] In the figure: 1. Oil tank body; 2. Spool seat; 3. Vent cap; 4. Air outlet; 5. Inlet pipe; 6. Sealing block; 7. Mounting seat; 8. Threaded rod; 9. Connecting seat; 10. Thread groove; 11. Limiting groove; 12. Tapered pin; 13. Mounting sleeve; 14. Upper valve cavity; 15. Lower valve cavity; 16. Guide rib; 18. Vent hole; 19. Duct. Specific implementation manners

[0019] 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 efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 As shown, a motorcycle fuel tank tipping valve includes an oil tank body 1; a tipping prevention mechanism is provided at the bottom end of the side of the oil tank body 1, a fixing mechanism is provided at one end of the tipping prevention mechanism, a limiting mechanism is provided inside the tipping prevention mechanism, and a lower valve cavity 15 is opened inside the limiting mechanism;

[0021] Please refer to Figure 2As shown in the figure, the limiting mechanism includes a lower valve cavity 15. An air vent hole 18 is provided at the bottom end of the lower valve cavity 15. Guide ribs 16 are uniformly fixed on the inner circumferential surface of the lower valve cavity 15. A tapered plug 12 is slidably installed inside the lower valve cavity 15. The tapered plug 12 is slidably connected with the guide ribs 16. A conduit 19 is connected to the bottom end of the side of the fuel tank body 1. A valve core seat 2 is fixed at one end of the conduit 19. During operation, when encountering the problem that the concentricity of the inner tapered part of the tipping valve is insufficient, resulting in fuel leakage from the motorcycle fuel tank and making it unable to be used normally, through the structure of the limiting mechanism, the tapered plug 12 is slidably installed inside the lower valve cavity 15 with the cooperation of the guide ribs 16. When the motorcycle fuel tank is not tilted, the tapered plug 12 is located on the top side of the air vent hole 18. If the motorcycle fuel tank is tilted, at this time, under the action of gravity, the tapered plug 12 slides linearly inside the lower valve cavity 15, and the bottom end of the tapered plug 12 is accurately buckled inside the air vent hole 18 to seal it, thereby preventing fuel leakage inside the fuel tank.

[0022] Please refer to Figure 3 As shown in the figure, the anti-tipping mechanism includes a valve core seat 2. An upper valve cavity 14 is provided inside the valve core seat 2. A mounting seat 7 is arranged at the top end inside the upper valve cavity 14. A threaded rod 8 is fixed to the bottom side of the mounting seat 7. A connecting seat 9 is arranged inside the upper valve cavity 14 and is located at the bottom side of the mounting seat 7. A threaded groove 10 is provided inside the connecting seat 9. The threaded rod 8 is fixedly connected with the connecting seat 9 through the threaded groove 10. A limiting groove 11 is provided at the bottom end inside the connecting seat 9. A tapered plug 12 is slidably inserted inside the limiting groove 11. A mounting sleeve 13 is arranged on the top side of the valve core seat 2. During operation, when encountering the problem that fuel is likely to leak from the fuel tank when the motorcycle is tilted, through the structure of the anti-tipping mechanism, the connecting seat 9 is installed inside the valve core seat 2. Then, the mounting seat 7 is installed on the top side of the connecting seat 9 with the cooperation of the threaded rod 8 and the threaded groove 10. The tapered plug 12 is slidably installed inside the connecting seat 9 through the cooperation of the limiting groove 11. When the motorcycle is not tilted, the fuel tank maintains an air passage through the cooperation of the upper valve cavity 14 inside the valve core seat 2. If it is tilted, the tapered plug 12 extends out from inside the limiting groove 11 to seal the air vent hole 18, thereby ensuring the safe use of the motorcycle.

[0023] Please refer to Figure 3As shown, the fixing mechanism includes an installation sleeve 13. An air vent cover 3 is installed on the top side of the installation sleeve 13. An air outlet 4 is provided at the bottom end inside the air vent cover 3. An air inlet pipe 5 is fixed to the top side of the air vent cover 3. A sealing block 6 is provided at the bottom side of the air vent cover 3, and the sealing block 6 is buckled inside the installation sleeve 13. During operation, when the position of the conical part is prone to deviation, resulting in leakage of the tipping valve, due to the structure of the fixing mechanism, the air vent cover 3 is buckled on the top side of the installation sleeve 13, and the air outlet 4 at the bottom side of the air vent cover 3 is communicated with the upper valve cavity 14 inside the valve core seat 2. At this time, with the cooperation of the air inlet pipe 5, the air passage of the fuel tank can be maintained, and at this time, the air vent cover 3 can prevent the conical pin 12 from falling off inside the valve core seat 2, so as to ensure timely blocking when the fuel tank is tilted and prevent leakage of the fuel tank.

[0024] Working principle: A motorcycle is a common means of transportation in daily life. To ensure that the fuel tank can supply fuel to it normally, the fuel tank usually cooperates at the air supply point to maintain the air passage. To prevent fuel leakage when the motorcycle is tilted, a tipping valve is usually installed at its air supply point to block it when the motorcycle is tilted and prevent oil leakage. During the use of the existing tipping valve, the concentricity of the conical part inside it is insufficient, and it will not be able to perfectly block the round hole at its bottom side. At this time, the tipping valve will leak, resulting in fuel leakage inside the motorcycle fuel tank and making it unable to be used normally. To solve this problem, by setting a limiting mechanism and an anti-tipping mechanism, a connecting seat 9 is installed inside the valve core seat 2. Then, the mounting seat 7 is installed on the top side of the connecting seat 9 through the cooperation of the threaded rod 8 and the thread groove 10. The conical pin 12 is slidably installed inside the connecting seat 9 through the cooperation of the limiting groove 11. The air vent cover 3 is buckled on the top side of the installation sleeve 13, and the air outlet 4 at the bottom side of the air vent cover 3 is communicated with the upper valve cavity 14 inside the valve core seat 2. At this time, with the cooperation of the air inlet pipe 5, the air passage of the fuel tank can be maintained, and at this time, the air vent cover 3 can prevent the conical pin 12 from falling off inside the valve core seat 2. The conical pin 12 is slidably connected with the guiding rib 16. When the motorcycle fuel tank is not tilted, the conical pin 12 is located above the air vent hole 18. If the motorcycle fuel tank is tilted, at this time, under the action of gravity, the conical pin 12 slides linearly inside the lower valve cavity 15, and the bottom end of the conical pin 12 is accurately buckled inside the air vent hole 18 to close it, thereby preventing fuel leakage inside the fuel tank and solving the problem of leakage of the tipping valve caused by insufficient concentricity of the conical part.

[0025] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0026] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A motorcycle fuel tank tipping valve, characterized in that: It includes a fuel tank body (1); a tipping prevention mechanism is provided at the bottom end of the side of the fuel tank body (1), a fixing mechanism is provided at one end of the tipping prevention mechanism, a limiting mechanism is provided inside the tipping prevention mechanism, and a lower valve cavity (15) is opened inside the limiting mechanism; The limiting mechanism includes a lower valve cavity (15), a ventilation hole (18) is opened at the bottom end of the lower valve cavity (15), guiding ribs (16) are uniformly fixed on the inner circumferential surface of the lower valve cavity (15), a tapered plug (12) is slidably installed inside the lower valve cavity (15), and the tapered plug (12) is slidably connected to the guiding ribs (16).

2. The motorcycle fuel tank tipping valve according to claim 1, wherein: A conduit (19) is connected to the bottom end of the side of the fuel tank body (1), and a valve core seat (2) is fixed at one end of the conduit (19).

3. The motorcycle fuel tank tilting valve according to claim 2, characterized in that: The tipping prevention mechanism includes a valve core seat (2), an upper valve cavity (14) is opened inside the valve core seat (2), a mounting seat (7) is provided at the top end inside the upper valve cavity (14), and a threaded rod (8) is fixed to the bottom side of the mounting seat (7).

4. A motorcycle fuel tank tipping valve according to claim 3, characterized in that: A connecting seat (9) is provided inside the upper valve cavity (14), and the connecting seat (9) is located at the bottom side of the mounting seat (7). A threaded groove (10) is opened inside the connecting seat (9), and the threaded rod (8) is fixedly connected to the connecting seat (9) through cooperation with the threaded groove (10).

5. The motorcycle fuel tank tipping valve according to claim 4, characterized in that: A limiting groove (11) is opened at the bottom end inside the connecting seat (9), a tapered plug (12) is slidably inserted inside the limiting groove (11), and a mounting sleeve (13) is provided on the top side of the valve core seat (2).

6. The motorcycle fuel tank tipping valve according to claim 5, wherein: The fixing mechanism includes a mounting sleeve (13), a ventilation cover (3) is installed on the top side of the mounting sleeve (13), and an air outlet (4) is provided at the bottom end inside the ventilation cover (3).

7. The motorcycle fuel tank tipping valve according to claim 6, characterized in that: The vent An air inlet pipe (5) is fixed to the top side of the ventilation cover (3), and a sealing block (6) is provided on the bottom side of the ventilation cover (3), The sealing block (6) is snap-fitted inside the mounting sleeve (13).

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