The utility model relates to a vacuum leak proof structure of an urn.Including a can body,A can of lid.A sealing washer,A piece of film.A valve body and a leakproof patch,The can body is made of stone and has a holding groove with an upward opening for holding ashes.The cover is made of stone and covers the opening of the tank.The top surface of the tank cover is provided with a groove.The bottom surface of the groove is perforated through one of the bottom surfaces.The gasket is arranged between the opening of the tank body and the joint surface of the tank cover.The spacer is combined in the groove to cover the perforation.And the utility model has a through one binding hole and a plurality of air holes.The valve body has a binding column.A fixed part and an elastic sheet,The binding column is embedded in the binding hole.The fixing part is arranged at the bottom end of the binding column and the outer diameter is larger than the binding column so that it can be clamped on the bottom surface of the spacer.The elastic sheet is arranged on the top of the combination column and is positioned on the top of the spacer and covers the plurality of air holes.The elastic sheet can be elastically turned up to open the plurality of air holes.And the leak proof patch is pasted on the upper part of the valve body and covers the valve body；The structure system has good vacuum tightness.The utility model has the advantages of simple and convenient vacuum maintenance and production, and can greatly reduce the defective rate and cost.一種骨灰罐的真空防漏結構，包括一罐身、一罐蓋、一密封墊圈、一隔片、一閥體及一防漏貼片，該罐身係石材刻製而成且具有朝上開口之一容槽可供容納骨灰，該罐蓋係石材刻製而成且蓋住該容槽的開口，該罐蓋的頂面具有一凹槽，該凹槽的槽底面具有貫通到底面之一穿孔，該密封墊圈係墊設在該罐身的開口與該罐蓋的接合面之間，該隔片結合在該凹槽中以蓋住該穿孔，且其上具有貫穿之一結合孔及複數氣孔，該閥體具有一結合柱、一固定部及一彈性片，該結合柱嵌設在該結合孔中，該固定部設在該結合柱的底端且外徑大於該結合柱使可供卡設在該隔片的底面，該彈性片設在該結合柱的頂端且位在該隔片的頂面並覆蓋住該複數氣孔，該彈性片係可彈性上翻以開啟該複數氣孔，而另其防漏貼片貼設於閥體上方並覆蓋住閥體；藉由上述結構係使其具有真空密封性良好、真空性維持及製作簡單方便而可大幅降低不良率與成本之功效。
