| 摘要 |
A sealing structure for a spray gun reservoir comprises a can and a lid. The can has an opening at one end with a curved edge around the opening. A circular trough is formed within an inner wall close to the opening. The circular trough is formed by starting one end in a level with the extension line gradually deviating from the line to cause a different height of the two ends. The lid comprises a reduced portion with a circular rib surrounding an outer wall of the reduced portion, corresponding to the circular trough of the can. A gap is formed around an inner wall of the lid corresponding to the curved edge of the can so that the lid covers the can with the circular rib inserting into the circular trough for security purpose.
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