The utility model relates to an improved structure of an urn,Including a can bodyA combination ring and a can cover,The can body is made of stone,The utility model is provided with a holding groove which forms one of the openings upward to accommodate the ashes,The connecting ring is made of materials easy to be molded and processed,The binding ring is annular to form a ring mouth on the inner side,The connecting ring comprises a base part and a connecting part,The base part is combined and fixed at the opening of the tank body,The joint part is integrally protruded from the top surface of the seat part,And the peripheral surface has an external thread part,The lid is made of a material easy to mold and process,The inner wall is provided with an internal thread part,The internal thread part can be used to screw with the external thread part to make the tank cover screw on the combination ring and cover the ring mouth；With this system, the lid and opening of the urn are simpleFast and convenient.一種骨灰罐改良結構，包括一罐身、一結合環及一罐蓋，該罐身係石材所刻製而成，具有朝上形成一開口之一容槽可供容納骨灰，該結合環係易於塑型及加工之材質製成，該結合環係呈環狀以使內側圍成一環口，該結合環包含有一座部及一結合部，該座部結合固定在該罐身之該開口處，該結合部係一體凸伸自該座部的頂面，而且外周面具有一外螺紋部，該罐蓋係易於塑型及加工之材質製成，內側壁具有一內螺紋部，該內螺紋部可供與該外螺紋部相對螺合以使該罐蓋螺合於該結合環上並蓋住該環口；藉此係可使骨灰罐的封蓋及開啟較為簡單、快速及方便者。
