The invention discloses a novel water conservation device. The novel water conservation device comprises a well rope winding rack which is composed of a first rack and a second rack and is fixedly mounted on the edge of a well, wherein a hollow cavity is arranged in the first rack in a left-right extending mode; a first slip slot is formed in the right side of the hollow cavity; a slip block is connected in the first slip slot in a slip fit mode; a flexible connecting part is arranged on the left side surface of the slip block in the hollow cavity; a pushing rod which extends towards the leftside is flexibly connected in the flexible connecting part; the tail part of the left side of the pushing rod is equipped with a fixed sleeve; a semi-ring rod part is arranged in the fixed sleeve; thefront side of the semi-ring rod part is rotatably connected with the inner wall of the front side of the hollow cavity in a matched mode; the rear side of the semi-ring rod part is connected with a well rope winding motor in a matched mode; the well rope winding motor is arranged in the inner wall of the rear side of the hollow cavity and is fixedly connected; a second slip slot which is formed in the front-rear extending mode is formed in the left side surface of the second rack; and a second slip block is arranged in the second slip slot. The novel water conservation device is simple in structure, can realize quick mounting and dismounting, increases replacing speed of a bobbin, and enables well rope winding work to be uniform.