Anti-expansion structure of motorcycle fuel tank

Abstract

The utility model relates to an anti-expansion structure of motorcycle oil tank belongs to motorcycle oil tank technical field. Including upper casing and lower casing, upper casing integrally connects with lower casing, and the inboard side of upper casing and lower casing is equipped with sealed oil storage cavity, and the top of upper casing is equipped with the oil filler port connected with oil storage cavity, and the center of upper casing is equipped with the upper cylindrical groove recessed downward, and the center of lower casing is equipped with the lower cylindrical groove recessed to one side of upper cylindrical groove, and the junction of upper cylindrical groove and lower cylindrical groove is equipped with the horizontal connecting plate, and the connecting plate is equipped with the circular through -hole of longitudinal arrangement, when the pressure of oil tank inside increases, because the structure of upper cylindrical groove and lower cylindrical groove is arranged at the center, the edge wall of the outside of upper cylindrical groove and lower cylindrical groove can pull the upper casing and lower casing, improve the structural strength of oil tank, so that the upper and lower casing will not expand and appear the rupture phenomenon.

Description

Technical Field

[0001] This utility model belongs to the field of motorcycle fuel tank technology and relates to an anti-expansion structure for motorcycle fuel tanks. Background Technology

[0002] Motorcycles are a common mode of transportation in daily life and are loved by many riders. In the structure of a motorcycle, the fuel tank stores gasoline, providing power for riding, and is an important part of the motorcycle.

[0003] Motorcycle fuel tanks are usually made of plastic. Because the inside of the fuel tank is sealed, gasoline will produce vapor inside the tank when the temperature is high in summer. This will increase the internal pressure and cause the fuel tank to expand, affecting the normal use of other parts. Summary of the Invention

[0004] The purpose of this utility model is to address the problems existing in the current technology by proposing an anti-expansion structure for motorcycle fuel tanks. The technical problem to be solved by this utility model is: how to prevent motorcycle fuel tanks from expanding.

[0005] The objective of this utility model can be achieved through the following technical solution: an anti-expansion structure for a motorcycle fuel tank, comprising an upper shell and a lower shell, wherein the upper shell is integrally formed and connected to the lower shell, and the inner sides of the upper shell and the lower shell are provided with a sealed oil storage cavity, the top of the upper shell is provided with an oil filling port connected to the oil storage cavity, the center of the upper shell is provided with a downwardly recessed upper cylindrical groove, the center of the lower shell is provided with a lower cylindrical groove recessed to one side of the upper cylindrical groove, and a horizontal connecting plate is provided at the connection between the upper cylindrical groove and the lower cylindrical groove, wherein the connecting plate is provided with a longitudinally arranged circular through hole.

[0006] In this design, gasoline can be added to the fuel storage chamber through the filler neck. When the pressure inside the fuel tank increases, the upper and lower cylindrical grooves at the center can pull the upper and lower shells together, improving the structural strength of the fuel tank and preventing expansion and cracking between the upper and lower shells. Furthermore, a connecting plate is installed at the connection point, which can pull the outer walls of the upper and lower cylindrical grooves together, further improving the fuel tank's anti-expansion capability. The through hole in the middle can connect the upper and lower cylindrical grooves at both ends, preventing water accumulation inside the upper cylindrical groove.

[0007] In the aforementioned anti-expansion structure of the motorcycle fuel tank, a connecting shell is provided on the periphery of the upper and lower cylindrical grooves. The cross-section of the connecting shell is "H"-shaped, and the upper and lower ends of the connecting shell are integrally connected to the upper and lower shells, respectively. The upper and lower cylindrical grooves are enclosed by the connecting shells on the periphery. When the pressure inside the fuel tank increases, the connecting shells pull the upper and lower shells together, and the connecting shells can support the upper and lower shells of the fuel tank, preventing the fuel tank from deforming under pressure.

[0008] In the aforementioned anti-expansion structure of the motorcycle fuel tank, a fuel pump mounting plate is fixedly connected to the top of the upper housing. The fuel pump mounting plate has several integrally connected studs, and its bottom is connected to the fuel storage chamber. The fuel pump mounting plate and studs are used to fix the fuel pump, enabling it to draw fuel from the fuel tank.

[0009] In the aforementioned anti-expansion structure for a motorcycle fuel tank, the top of the upper housing is provided with a downwardly recessed mounting groove, the fuel pump mounting plate is disposed inside the mounting groove, and the mounting groove is provided with placement grooves extending to both sides. The mounting groove and placement grooves are downwardly recessed to accommodate the fuel pump.

[0010] In the aforementioned anti-expansion structure for a motorcycle fuel tank, limiting grooves are provided on both sides of the upper shell, and upward-protruding limiting blocks are provided inside the limiting grooves. Several mounting holes are provided at the bottom of the limiting grooves. The limiting grooves are used to connect with the structure on the frame, enabling the fuel tank to be fixed to the frame.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. In this design, when the pressure inside the tank increases, the upper and lower cylindrical grooves at the center can pull the upper and lower shells together, thus improving the structural strength of the tank and preventing the upper and lower shells from expanding and cracking. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a frontal half-sectional view of the structure of this utility model;

[0015] Figure 3 yes Figure 2 A magnified schematic diagram of a portion of the structure.

[0016] In the diagram, 1 is the upper housing; 1a is the filler port; 1b is the upper cylindrical groove; 2 is the lower housing; 2a is the lower cylindrical groove; 3 is the mounting groove; 3a is the placement groove; 4 is the oil pump mounting plate; 4a is the stud; 5 is the limiting groove; 5a is the limiting block; 5b is the mounting hole; 6 is the oil reservoir; 7 is the connecting housing; 8 is the connecting plate; 8a is the through hole. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] Example

[0019] like Figure 1 As shown, the anti-expansion structure of the motorcycle fuel tank includes an upper shell 1 and a lower shell 2. The upper shell 1 is integrally formed and connected to the lower shell 2. The top of the upper shell 1 is provided with a downwardly recessed mounting groove 3. The mounting groove 3 is provided with placement grooves 3a extending to both sides inside. The mounting groove 3 is provided with a fixed oil pump mounting plate 4 inside. The oil pump mounting plate 4 is provided with several integrally connected studs 4a. The upper shell 1 is provided with limiting grooves 5 on both sides. The limiting grooves 5 are provided with upwardly protruding limiting blocks 5a inside. The bottom of the limiting grooves 5 is provided with several mounting holes 5b.

[0020] like Figure 2 Combination Figure 3 As shown, the inner sides of the upper housing 1 and the lower housing 2 are provided with a sealed oil storage cavity 6. The top of the upper housing 1 is provided with an oil filling port 1a connected to the oil storage cavity 6. A connecting housing 7 is provided at the center of the upper housing 1 and the lower housing 2. The cross-section of the connecting housing 7 is "H" shaped. The upper and lower ends of the connecting housing 7 are integrally connected to the upper housing 1 and the lower housing 2, respectively. The top of the connecting housing 7 is provided with an upper cylindrical groove 1b, and the bottom of the connecting housing 7 is provided with a lower cylindrical groove 2a. A horizontal connecting plate 8 is provided at the connection between the upper cylindrical groove 1b and the lower cylindrical groove 2a. The connecting plate 8 is provided with a longitudinally arranged circular through hole 8a.

[0021] The working principle of this solution is as follows: Figure 1-3 As shown, when the pressure inside the fuel tank increases, the upper cylindrical groove 1b and the lower cylindrical groove 2a at the center can pull the upper shell 1 and the lower shell 2 together, thus improving the structural strength of the fuel tank and preventing the upper and lower shells 2 from expanding and cracking. Furthermore, the connecting plate 8 at the connection point can pull the outer sidewalls of the upper cylindrical groove 1b and the lower cylindrical groove 2a together, further improving the fuel tank's anti-expansion capability. The fuel tank structure produced by the above structure will not burst during the airtightness test, avoiding safety issues.

[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0023] Although this document frequently uses terms such as 1. upper housing; 1a. filler port; 1b. upper cylindrical groove; 2. lower housing; 2a. lower cylindrical groove; 3. mounting groove; 3a. placement groove; 4. oil pump mounting plate; 4a. stud; 5. limiting groove; 5a. limiting block; 5b. mounting hole; 6. oil reservoir; 7. connecting housing; 8. connecting plate; 8a. through hole, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. An anti-expansion structure for a motorcycle fuel tank, comprising an upper shell (1) and a lower shell (2), wherein the upper shell (1) is integrally formed and connected to the lower shell (2), and the inner sides of the upper shell (1) and the lower shell (2) are provided with a sealed fuel storage cavity (6), and the top of the upper shell (1) is provided with a filler port (1a) connected to the fuel storage cavity (6), characterized in that, The upper shell (1) has a downwardly recessed upper cylindrical groove (1b) at its center, and the lower shell (2) has a lower cylindrical groove (2a) recessed to one side of the upper cylindrical groove (1b) at its center. A horizontal connecting plate (8) is provided at the connection between the upper cylindrical groove (1b) and the lower cylindrical groove (2a), and a longitudinally arranged circular through hole (8a) is provided on the connecting plate (8).

2. The anti-expansion structure for a motorcycle fuel tank according to claim 1, characterized in that, The upper cylindrical groove (1b) and the lower cylindrical groove (2a) are provided with connecting shells (7) on their periphery. The cross-section of the connecting shells (7) is "H" shaped. The upper and lower ends of the connecting shells (7) are integrally connected to the upper shell (1) and the lower shell (2), respectively.

3. The anti-expansion structure for a motorcycle fuel tank according to claim 1, characterized in that, The top of the upper housing (1) is provided with a fixed oil pump mounting plate (4), and the oil pump mounting plate (4) is provided with a plurality of integrally connected studs (4a). The bottom of the oil pump mounting plate (4) is connected to the oil storage chamber (6).

4. The anti-expansion structure for a motorcycle fuel tank according to claim 3, characterized in that, The top of the upper housing (1) is provided with a downwardly recessed mounting groove (3), and the oil pump mounting plate (4) is located inside the mounting groove (3). The mounting groove (3) is provided with placement grooves (3a) extending to both sides inside.

5. The anti-expansion structure for a motorcycle fuel tank according to claim 1, characterized in that, The upper housing (1) is provided with limiting grooves (5) on both sides, and the limiting grooves (5) are provided with upward protruding limiting blocks (5a) inside, and the bottom of the limiting grooves (5) is provided with several mounting holes (5b).

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