CN211684654U - Fuel tank oil filler hole seal structure - Google Patents
Fuel tank oil filler hole seal structure Download PDFInfo
- Publication number
- CN211684654U CN211684654U CN202020332330.1U CN202020332330U CN211684654U CN 211684654 U CN211684654 U CN 211684654U CN 202020332330 U CN202020332330 U CN 202020332330U CN 211684654 U CN211684654 U CN 211684654U
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- China
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- sealing ring
- connecting part
- filler opening
- filler
- connecting portion
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
A fuel tank filler hole sealing structure comprises a filler hole cover and a filler hole, wherein the filler hole cover comprises a knob and a connecting part, the knob and the connecting part are integrally formed at the upper end of the connecting part, the connecting part is of a hollow cylindrical structure, the outer surface of the connecting part is provided with a plurality of circles of external threads, the inner surface of the oil filling port is provided with internal threads matched with the external threads of the connecting part, the oil filler cover is detachably arranged on the oil filler opening through matching of the external thread of the connecting part and the internal thread of the oil filler opening, the top of the connecting part is fixedly provided with a circle of sealing ring along the circumferential direction, the sealing ring is provided with a V-shaped groove along the axial direction, when the oil filler cover is fixed on the oil filler hole, the sealing ring is in interference fit with a gap between the connecting part and the oil filler hole to play a sealing role. The utility model discloses a set up round V-arrangement groove and can absorb certain deformation volume on the sealing ring, make things convenient for opening of filler cap.
Description
Technical Field
The utility model relates to the field of automotive technology, specifically a fuel tank oil filler hole seal structure.
Background
At present, when the oil filler cover and the oil filler are sealed, the oil filler cover and the oil filler are generally sealed through a sealing ring, but the existing sealing ring is generally of a solid ring structure, the sealing ring is in interference fit between the oil filler cover and the oil filler, although the sealing ring has good sealing performance, in summer or in a high-temperature environment, an object is easy to expand to a certain extent along with the rise of temperature, at the moment, the oil filler cover, the oil filler and the sealing ring can expand to a certain extent, meanwhile, the oil filler cover, the oil filler and the sealing ring are in interference fit, the expansion of the object can increase the magnitude of interference, and the oil filler cover is difficult to unscrew particularly for some female drivers in summer or in a high-temperature environment. Meanwhile, if the interference magnitude among the oil filler cover, the oil filler hole and the sealing ring is too large, the sealing ring is easy to deform and lose efficacy, and the service life of the sealing ring is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of existence among the prior art, provide a fuel tank oil filler hole seal structure, solved the fuel tank oil filler hole seal structure among the prior art when the thermal expansion in summer or the hot environment, interference magnitude increase between filler cap, filler cap and the sealing ring leads to the filler cap to be difficult to unscrew and cause the deformation of sealing ring, the problem of inefficacy easily.
In order to realize the purpose, the utility model discloses a technical scheme be:
a fuel tank filler hole sealing structure comprises a filler hole cover and a filler hole, wherein the filler hole cover comprises a knob and a connecting part, the knob and the connecting part are integrally formed at the upper end of the connecting part, the connecting part is of a hollow cylindrical structure, the outer surface of the connecting part is provided with a plurality of circles of external threads, the inner surface of the oil filling port is provided with internal threads matched with the external threads of the connecting part, the oil filler cover is detachably arranged on the oil filler opening through the matching of the external thread of the connecting part and the internal thread of the oil filler opening, the top of the connecting part is fixedly provided with a circle of sealing ring along the circumferential direction, the sealing ring is provided with a circle of V-shaped groove along the circumferential direction, when the oil filler cover is fixed on the oil filler hole, the sealing ring is in interference fit with a gap between the connecting part and the oil filler hole to play a sealing role.
Furthermore, the lower end of the knob and the knob are integrally formed with a plurality of shielding plates, and the shielding plates are uniformly arranged along the circumferential direction of the knob.
Furthermore, the V-shaped groove is formed in the horizontal direction, the vertex of the V-shaped groove is overlapped with the circle center of the section of the sealing ring, and the opening angle of the V-shaped groove is 30-60 degrees.
Furthermore, the sealing ring is sleeved on the outer surface of the connecting part, and the inner diameter of the sealing ring is equal to the outer diameter of the connecting part.
The utility model has the advantages of simple structure, and reasonable design, through set up round V-arrangement groove on the sealing ring, when sealing ring interference fit between filler cap and the oil filler hole, the sealing ring, filler cap and oil filler hole are because when taking place the inflation under the high temperature environment, because round V-arrangement groove has been seted up along its circumference to the sealing ring, when the sealing ring, can extrude the both ends in V-arrangement groove when filler cap and oil filler hole take place the inflation, micro-deformation can take place in the V-arrangement groove, absorb because the sealing ring, produced magnitude of interference when filler cap and oil filler hole expand, required opening force when having reduced the filler cap and opening. Simultaneously, because the deformation volume of the thermal expansion of sealing ring, filler cap and oil filler hole can not be very big, consequently the deformation volume that takes place at the both ends of the V-arrangement groove of sealing ring also can not be very big, belongs to elastic deformation, can not lead to the V-arrangement groove to take place permanent deformation, has improved the life of sealing ring.
Drawings
FIG. 1 is a schematic cross-sectional view of an assembly structure of a filler cap and a filler neck of the present invention;
FIG. 2 is a schematic cross-sectional view of the filler cap of the present invention;
FIG. 3 is a top view of the fuel filler cap of the present invention;
FIG. 4 is a front view of the filler cap of the present invention;
in the figure: 1. filler cap, 2, oil filler hole, 3, knob, 4, connecting portion, 5, external screw thread, 6, sealing ring, 7, V-arrangement groove, 8, shielding plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The fuel tank filler opening sealing structure shown in fig. 1-4 comprises a fuel tank filler opening cover 1 and a fuel tank filler opening 2, wherein the fuel tank filler opening cover 1 comprises a knob 3 and a connecting part 4, the knob 3 and the connecting part 4 are integrally formed at the upper end of the connecting part 4, the connecting part 4 is of a hollow cylindrical structure, a plurality of circles of external threads 5 are arranged on the outer surface of the connecting part 4, internal threads matched with the external threads 5 of the connecting part 4 are arranged on the inner surface of the fuel tank filler opening 2, the fuel tank filler opening cover 1 is detachably mounted on the fuel tank filler opening 2 through the matching of the external threads 5 of the connecting part 4 and the internal threads of the fuel tank filler opening 2, a circle of sealing ring 6 is fixedly mounted at the top of the connecting part 4 along the circumferential direction thereof, a circle of V-shaped groove 7 is arranged on the sealing ring, the sealing ring 6 is in interference fit in a gap between the connecting part 4 and the oil filling port 2 to play a sealing role; a plurality of shielding plates 8 are integrally formed at the lower end of the knob 3 and the knob 3, and the shielding plates 8 are uniformly arranged along the circumferential direction of the knob 3; the V-shaped groove 7 is formed in the horizontal direction, the vertex of the V-shaped groove 7 is overlapped with the circle center of the section of the sealing ring 6, and the opening angle of the V-shaped groove 7 is 30-60 degrees; the sealing ring 6 is sleeved on the outer surface of the connecting part 4, and the inner diameter of the sealing ring 6 is equal to the outer diameter of the connecting part 4.
This a fuel tank filler opening seal structure, moreover, the steam generator is simple in structure, and reasonable in design, through set up round V-arrangement groove 7 on sealing ring 6, when 6 interference fit of sealing ring between filler cap 1 and the filler opening 2, sealing ring 6, filler cap 1 and filler opening 2 are because when taking place the inflation under being in high temperature environment, because round V-arrangement groove 7 has been seted up along its circumference to sealing ring 6, when sealing ring 6, can extrude the both ends of V-arrangement groove 7 when filler cap 1 and filler opening 2 take place the inflation, micro deformation can take place for V-arrangement groove 7, absorb because sealing ring 6, produced magnitude of interference when filler cap 1 and filler opening 2 expand, required opening force when having reduced filler cap 1 and opening. Meanwhile, the deformation of the sealing ring 6, the oil filler cover 1 and the oil filler 3 due to thermal expansion is not large, so that the deformation of the two ends of the V-shaped groove 7 of the sealing ring is not large, the elastic deformation is realized, the permanent deformation of the V-shaped groove 7 is not caused, and the service life of the sealing ring 6 is prolonged.
The utility model discloses can effectively solve fuel tank oil filler hole seal structure when thermal expansion in summer or hot environment, the magnitude of interference increase between filler cap 1, oil filler hole 2 and the sealing ring 6 leads to filler cap 1 to be difficult to unscrew and cause the deformation of sealing ring 6, the problem of inefficacy easily.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations may be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a fuel tank filler opening seal structure, includes filler opening lid (1) and filler opening (2), its characterized in that, filler opening lid (1) includes knob (3) and connecting portion (4), knob (3) with connecting portion (4) integrated into one piece in the upper end of connecting portion (4), connecting portion (4) are hollow cylindric structure, several circles of external screw thread (5) have been seted up on the surface of connecting portion (4), be equipped with on the internal surface of filler opening (2) with the internal thread that external screw thread (5) of connecting portion (4) match, filler opening lid (1) passes through external screw thread (5) of connecting portion (4) and the internal screw thread matching detachably of filler opening (2) install in on filler opening (2), the top of connecting portion (4) has round sealing ring (6) along its circumference fixed mounting, the sealing ring (6) is provided with a circle of V-shaped groove (7) along the circumferential direction, and when the oil filler cover (1) is fixed on the oil filler opening (2), the sealing ring (6) is in interference fit with a gap between the connecting part (4) and the oil filler opening (2) to play a sealing role.
2. The fuel tank filler opening sealing structure according to claim 1, characterized in that a plurality of shielding plates (8) are integrally formed at the lower end of the knob (3) and the knob (3), and the shielding plates (8) are uniformly arranged along the circumferential direction of the knob (3).
3. The fuel tank filler hole sealing structure according to claim 1, wherein the V-shaped groove (7) is formed in a horizontal direction, a vertex of the V-shaped groove (7) coincides with a center of a cross section of the sealing ring (6), and an opening angle of the V-shaped groove (7) is 30-60 °.
4. The fuel tank filler opening sealing structure according to claim 1, characterized in that the sealing ring (6) is sleeved on the outer surface of the connecting portion (4), and the inner diameter of the sealing ring (6) is equal to the outer diameter of the connecting portion (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020332330.1U CN211684654U (en) | 2020-03-17 | 2020-03-17 | Fuel tank oil filler hole seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020332330.1U CN211684654U (en) | 2020-03-17 | 2020-03-17 | Fuel tank oil filler hole seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211684654U true CN211684654U (en) | 2020-10-16 |
Family
ID=72781012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020332330.1U Active CN211684654U (en) | 2020-03-17 | 2020-03-17 | Fuel tank oil filler hole seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211684654U (en) |
-
2020
- 2020-03-17 CN CN202020332330.1U patent/CN211684654U/en active Active
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