Leakage-prevention gasket and sealing structure

Abstract

This invention, a leak-proof gasket, addresses the problem of poor sealing performance in conventional leak-proof elements. The leak-proof gasket comprises: a ring body with a corresponding gasket perforation; and a side portion of the ring body protruding outward along an axial direction. The ring body is disposed within a storage unit, with the gasket perforation aligned with a channel within the storage unit. The storage unit is a material container with a wall having a channel wall extending along the axial direction, the channel being formed within the channel wall of the storage unit. The ring body is fitted to the top of the channel wall, and the side portion of the ring body is fitted to the inner or outer circumference of the channel wall. This invention effectively improves the sealing performance of the storage unit.

Claims

1. A leak-proof gasket (3), comprising: a ring body (31) having a corresponding gasket through hole (30); a side portion (32) of the ring body protruding outward from the ring body (31) along an axial direction (D1); wherein, The ring (31) is used to be disposed in a storage unit (1) such that the gasket perforation (30) is aligned with a channel (10) located in the storage unit (1); wherein the storage unit (1) is a material container and has a wall (W) having a channel wall (WA) extending along the axial direction (D1), the channel (10) being formed in the channel wall (WA) of the storage unit (1); the ring (31) is attached to the top of the channel wall (WA), and the side portion (32) of the ring is attached to the inner or outer periphery of the channel wall (WA).

2. The leak-proof gasket (3) as described in claim 1, wherein, The side portion (32) of the ring body has an outer ring sidewall (322) for fitting the outer periphery of the channel wall (WA).

3. The leak-proof gasket (3) as described in claim 1, wherein, The side portion (32) of the ring body has an inner ring sidewall (321) for fitting the inner circumference of the channel wall (WA).

4. The leak-proof gasket (3) as described in claim 2, wherein, The side portion (32) of the ring body has an inner ring sidewall (321) for fitting the inner circumference of the channel wall (WA); the inner ring sidewall (321) is spaced apart from the outer ring sidewall (322), and the outer ring sidewall (322) is radially disposed outside the inner ring sidewall (321).

5. The leak-proof gasket (3) as described in claim 3 or 4, wherein, The inner ring sidewall (321) has a support portion (33) extending inward along a radial direction (D2) from the inner ring sidewall (321); the support portion (33) is used to fit a channel peripheral wall (WB) extending inward along the radial direction (D2) from the channel wall (WA).

6. The leak-proof gasket (3) as described in claim 5, wherein, The support (33) has a plurality of second fixing parts (F2); when the support (33) is attached to the channel periphery (WB), each of the second fixing parts (F2) is used to engage with the corresponding of the plurality of first fixing parts (F1) on the channel periphery (WB).

7. The leak-proof gasket (3) as described in any one of claims 1 to 4, wherein, The thickness of the ring (31) gradually increases radially (D2) away from the washer perforation (30) near the washer perforation (30).

8. A sealing structure comprising: a storage unit (1), which is a material container and has a wall (W) and a channel (10), the wall (W) having an annular channel wall (WA) extending along the axial direction (D1), and defining a corresponding channel (10) through the channel wall (WA); a leak-proof gasket (3) as described in any one of claims 1, 3, 4 and 7, disposed in the storage unit (1) such that the gasket perforation (30) is aligned with the channel (10), the annular body (31) is fitted against the top of the channel wall (WA), and the side portion (32) of the annular body is fitted against the inner or outer periphery of the channel wall (WA); a cover (2) movably disposed in the storage unit (1) to close or open the channel (10); when the cover (2) is closed in the channel (10), the cover (2) is tightly fitted with the leak-proof gasket (3).

9. The sealing structure as described in claim 8, wherein, The channel (10) has an open end (10E) on the outer side of the wall (W), and the channel wall (WA) forms a channel periphery wall (WB) in a radial direction (D2) at a position away from the open end (10E); the annular side (32) has a support portion (33) extending inward from the annular side (32) in a radial direction (D2); the support portion (33) fits against the channel periphery wall (WB); optionally, a plurality of first fixing portions (F1) are provided around the channel periphery wall (WB), and the support portion (33) has a plurality of second fixing portions (F2), and when the support portion (33) fits against the channel periphery wall (WB), each of the second fixing portions (F2) engages with the corresponding one of the first fixing portions (F1).

10. The sealing structure as described in claim 9 further includes an auxiliary retaining ring (4); the auxiliary retaining ring (4) is disposed above the support (33) and is respectively connected to the auxiliary retaining ring (4) and the channel peripheral wall (WB) through a plurality of additional fasteners, so that the support (33) is sandwiched between the auxiliary retaining ring (4) and the channel peripheral wall (WB) and fits against the channel peripheral wall (WB).

11. The sealing structure as described in any one of claims 8 to 10, wherein, The inner side of the cover (2) has a sealing protrusion (21) that gradually protrudes downward from the edge of the cover (2) toward the center, so that when the cover (2) closes the channel (10), the sealing protrusion (21) partially extends into the gasket hole (30) and partially presses against the area of ​​the leak-proof gasket (3) adjacent to the gasket hole (30).

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