Rotational molding oil tank

Abstract

The utility model relates to the field of motorcycle oil tanks, in particular to a rotational molding oil tank which comprises a body, a connecting ring and a threaded sleeve, the body is provided with an oil cavity, the outer wall of the body is provided with a mounting opening, the mounting opening is communicated with the oil cavity, the connecting ring is provided with a connecting opening, and the threaded sleeve is coaxially and fixedly connected to the inner wall of the connecting opening. The threaded sleeve and the connecting ring are integrally formed through a die-casting die, and the connecting ring is arranged on the periphery of the installation opening and connected to the body. The threaded sleeve and the connecting ring are integrally formed through a die-casting die, the structural strength is improved, when the body expands with heat and contracts with cold and deforms, a gap is not prone to being generated between the connecting ring and the threaded sleeve, and the oil leakage probability is reduced.

Description

Technical Field

[0001] The present application relates to the field of motorcycle fuel tanks, and in particular to a rotationally molded fuel tank. Background Art

[0002] Roto-molded fuel tanks are fuel tanks manufactured using a roto-molding process, which rotates the mold and injects powdered plastic so that the plastic is evenly distributed inside the mold and solidifies into shape, thereby manufacturing a fuel tank with a complex shape and structure.

[0003] The outer wall of the rotomolded oil tank is provided with many openings, including a filling port, a sensor installation port, a connecting valve installation port and an oil pump installation port, etc. The screw sleeves are provided on the outer periphery of these openings, and the screw sleeves are fixed to the outer wall of the rotomolded oil tank. The cover plate is fixed to the rotomolded oil tank through the screw sleeves to achieve sealing of the rotomolded oil tank.

[0004] However, due to the irregular shape of the roto-molded oil tank, the plastic is easily deformed due to thermal expansion and contraction during use, causing the screw sleeve to move and the cover plate to deform, making the roto-molded oil tank prone to oil leakage. Utility Model Content

[0005] In order to reduce the probability of oil leakage, the present application provides a rotationally molded oil tank.

[0006] The present application provides a roto-molded fuel tank adopting the following technical solution:

[0007] A rotationally molded oil tank comprises a body, a connecting ring and a screw sleeve, wherein the body is provided with an oil cavity, the outer wall of the body is provided with a mounting port, the mounting port is connected to the oil cavity, the connecting ring is provided with a connecting port, the screw sleeve is coaxially fixedly connected to the inner wall of the connecting port, the screw sleeve and the connecting ring are integrally formed by a die-casting mold, the connecting ring is provided on the outer periphery of the mounting port, and the connecting ring is connected to the body.

[0008] By adopting the above technical solution, the screw sleeve and the connecting ring are integrally formed through a die-casting mold, the structural strength is improved, and when the body is deformed due to thermal expansion and contraction, it is difficult to generate a gap between the connecting ring and the screw sleeve, thereby reducing the probability of oil leakage.

[0009] Preferably, there are a plurality of connecting ports, which are spaced apart along the extending direction of the connecting ring, and there are a plurality of screw sleeves, which are arranged at the connecting ports in a one-to-one correspondence.

[0010] By adopting the above technical solution, multiple screw sleeves are convenient for fixing other components and improving the stability of other components.

[0011] Preferably, the outer wall of the main body is provided with a mounting groove, the mounting opening is provided at the bottom of the mounting groove, and the connecting ring is fixedly embedded in the mounting groove.

[0012] By adopting the above technical solution, the bottom of the installation groove is flat, which makes it easy to fix the connecting ring in the installation groove and reduces the probability of oil leakage.

[0013] Preferably, it also includes a covering plate, which is detachably connected to a side of the connecting ring away from the bottom of the installation groove, and is used to cover the installation opening.

[0014] By adopting the above technical solution, the covering plate blocks the oil to reduce oil leakage. The covering plate can be detachably connected to the connecting ring to facilitate oil filling, oil drainage or maintenance through the installation port.

[0015] Preferably, it further comprises a bolt, the cover plate is provided with a fixing opening, and the bolt passes through the fixing opening and is threadedly connected to the inner wall of the screw sleeve.

[0016] By adopting the above technical solution, the cover plate and the connecting ring are fixed by bolts and screw sleeves, so that the cover plate is easy to disassemble.

[0017] Preferably, it further comprises a sealing ring, which is arranged on the outer periphery of the installation opening, and two sides of the sealing ring respectively abut against the connecting ring and the covering plate.

[0018] By adopting the above technical solution, the sealing ring improves the sealing between the connecting ring and the covering plate, and reduces the probability of oil leakage from between the connecting ring and the covering plate.

[0019] Preferably, a sealing ring groove is provided on the side of the connecting ring facing the cover plate, the sealing ring groove is provided on the outer periphery of the mounting opening, and the sealing ring is embedded in the sealing ring groove.

[0020] By adopting the above technical solution, the sealing ring groove makes it easy to install the sealing ring, improves the installation efficiency of the sealing ring, and is convenient for users to use.

[0021] Preferably, the distances from the sealing ring groove to the inner wall of the connecting ring are equal.

[0022] By adopting the above technical solution, the sealing ring can be evenly subjected to the pressure from the inner circumference of the connecting ring. The uniform pressure distribution helps to ensure that the sealing ring can form a stable and reliable sealing interface after installation, thereby reducing the probability of oil leakage.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The screw sleeve and the connecting ring are integrally formed by a die-casting mold, which improves the structural strength. When the body is deformed due to thermal expansion and contraction, it is not easy to generate a gap between the connecting ring and the screw sleeve, thus reducing the probability of oil leakage;

[0025] 2. The bottom of the installation groove is flat, which is convenient for fixing the connecting ring in the installation groove and reducing the probability of oil leakage;

[0026] 3. The sealing ring can uniformly receive the pressure from the inner circumference of the connecting ring, and the uniform pressure distribution helps to ensure that a stable and reliable sealing interface can be formed after the sealing ring is installed, reducing the probability of oil leakage. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of a rotational molding fuel tank.

[0028] Figure 2 It is a cross-sectional view of the connecting ring, the screw sleeve, the cover plate and the sealing ring.

[0029] Description of the reference numerals: 1, body; 11, oil cavity; 12, installation groove; 121, installation port; 2, connecting ring; 21, connecting port; 22, sealing ring groove; 3, screw sleeve; 4, cover plate; 41, fixing port; 5, bolt; 6, sealing ring. Detailed Implementation Modes

[0030] The following further elaborates on this application Figure 1-2 with reference to the attached drawings.

[0031] The embodiment of this application discloses a rotational molding fuel tank. Referring to Figure 1 and Figure 2 , the rotational molding fuel tank includes a body 1, a connecting ring 2, a screw sleeve 3, a cover plate 4, a bolt 5 and a sealing ring 6.

[0032] Referring to Figure 1 , the body 1 is provided with an oil cavity 11, the outer wall of the body 1 is provided with an installation groove 12, the bottom of the installation groove 12 is provided with an installation port 121, the installation port 121 communicates with the oil cavity 11, there are multiple installation grooves 12, the installation ports 121 are arranged in one-to-one correspondence with the installation grooves 12, and the installation ports 121 can be set as filling ports, sensor installation ports, connecting valve installation ports, oil pump installation ports, etc.

[0033] Referring to Figure 2 , the connecting ring 2 is provided with a connecting port 21, the screw sleeve 3 is coaxially and fixedly connected to the inner wall of the connecting port 21, the screw sleeve 3 and the connecting ring 2 are integrally formed by a die-casting mold, the material of the connecting ring 2 is set as aluminum alloy, the material of the screw sleeve 3 is set as stainless steel, the screw sleeve 3 is fixed in the aluminum die-casting mold, and after the mold is closed, aluminum alloy material is injected into the cavity, and after cooling, a formed body of the screw sleeve 3 and the connecting ring 2 is formed.

[0034] Referring to Figure 1 and Figure 2 , there are multiple connecting ports 21, the multiple connecting ports 21 are evenly spaced along the extending direction of the connecting ring 2, there are multiple screw sleeves 3, and the screw sleeves 3 are arranged in one-to-one correspondence with the connecting ports 21. The connecting ring 2 is arranged on the outer circumference of the installation port 121, the connecting ring 2 is embedded in the installation groove 12, and the connecting ring 2 is fixedly connected to the bottom of the installation groove 12.

[0035] Reference Figure 1 and Figure 2 , the cover plate 4 is detachably connected to the side of the connecting ring 2 facing away from the bottom of the mounting groove 12. The cover plate 4 is used to cover the mounting opening 121. The cover plate 4 is provided with fixing openings 41. After the bolts 5 pass through the fixing openings 41, they are threadedly connected to the inner wall of the screw sleeve 3. There are multiple fixing openings 41, and the fixing openings 41 are arranged in one-to-one correspondence with the screw sleeves 3. The bolts 5 press the cover plate 4 and the connecting ring 2 tightly together.

[0036] A sealing ring groove 22 is provided on the side of the connecting ring 2 facing the cover plate 4. The sealing ring groove 22 is arranged on the outer periphery of the mounting opening 121. The distance from the sealing ring groove 22 to the inner wall of the connecting ring 2 is equal. The sealing ring groove 22 is arranged on the inner periphery of the connecting port 21. One side of the sealing ring 6 is embedded in the sealing ring groove 22, and the other side of the sealing ring 6 abuts against the cover plate 4.

[0037] The implementation principle of a rotational molding fuel tank in an embodiment of the present application is as follows: The connecting ring 2 and the screw sleeve 3 are fixed by a die-casting mold. The connecting ring 2 is embedded in the mounting groove 12, and the connecting ring 2 is fixed at the bottom of the mounting groove 12. The sealing ring 6 is installed, and the bolts 5 are connected to the screw sleeves 3 to fix the cover plate 4 and the connecting ring 2.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rotational molding fuel tank, characterized in that: The invention comprises a body (1), a connecting ring (2) and a screw sleeve (3), wherein the body (1) is provided with an oil chamber (11), an outer wall of the body (1) is provided with a mounting opening (121), the mounting opening (121) is connected to the oil chamber (11), the connecting ring (2) is provided with a connecting opening (21), the screw sleeve (3) is coaxially fixedly connected to the inner wall of the connecting opening (21), the screw sleeve (3) and the connecting ring (2) are integrally formed by a die-casting mold, the connecting ring (2) is provided on the outer periphery of the mounting opening (121), and the connecting ring (2) is connected to the body (1).

2. The rotational molding fuel tank according to claim 1, wherein: There are a plurality of connection ports (21), which are arranged at intervals along the extension direction of the connection ring (2); there are a plurality of screw sleeves (3), which are arranged on the connection ports (21) in a one-to-one correspondence.

3. The rotational molding fuel tank according to claim 1, characterized in that: The outer wall of the body (1) is provided with a mounting groove (12), the mounting opening (121) is provided at the bottom of the mounting groove (12), and the connecting ring (2) is fixedly embedded in the mounting groove (12).

4. The rotational molding fuel tank according to claim 3, wherein: It also comprises a covering plate (4), the covering plate (4) being detachably connected to a side of the connecting ring (2) facing away from the bottom of the mounting groove (12), the covering plate (4) being used to cover the mounting opening (121).

5. The rotational molding fuel tank according to claim 4, characterized in that: It also comprises a bolt (5), the cover plate (4) is provided with a fixing opening (41), and the bolt (5) passes through the fixing opening (41) and is threadedly connected to the inner wall of the screw sleeve (3).

6. The rotational molding fuel tank according to claim 5, wherein: It also comprises a sealing ring (6), wherein the sealing ring (6) is arranged on the outer periphery of the installation opening (121), and two sides of the sealing ring (6) respectively abut against the connecting ring (2) and the covering plate (4).

7. The rotational molding fuel tank according to claim 6, characterized in that: A sealing ring groove (22) is provided on the side of the connecting ring (2) facing the cover plate (4); the sealing ring groove (22) is provided on the outer periphery of the mounting opening (121); and the sealing ring (6) is embedded in the sealing ring groove (22).

8. The rotational molding fuel tank according to claim 7, wherein: The distances between the sealing ring groove (22) and the inner wall of the connecting ring (2) are equal.

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