Annular anchor recycling instrument and annular anchor recycling method

An annular anchor recycling instrument configured to cooperatively install an annular anchor (1) opened at its upper and lower ends, comprising

• an recycling tube (2), one end of which is provided with a cover body (3), and the other end of which is configured to be an open end for cooperating with the top of the annular anchor (1);
• a pump body assembly (4) arranged on said cover body (3), and used to boost pressure to the interior of said recycling tube (2);
• a lifting portion (5) arranged on said cover body (3), and used to connect with a hoist;
• and
• an installation portion (6) in multiple groups, which are arranged on said cover body (3), and used to connect with the anchor chain (7) on the annular anchor (1), so that the annular anchor (1) is coaxially fixed to the open end of said recycling tube (2);
• wherein the annular anchor recycling instrument further includes a constraint means (8), positioned at the open end of said recycling tube (2), which is used to limit the relative movement between the annular anchor (1) and said recycling tube (2) in the radial direction;
• wherein said constraint means (8) includes a constraint plate (9), one end of the constraint plate (9) is connected with the inner wall of the open end of said recycling tube (2), and the other end of the constraint plate (9) is suitable for protruding into the interior of the annular anchor (1), so as to abut on the inner wall of the annular anchor (1);
• wherein a bottom end of said constraint plate (9) is provided with a guiding portion (10) bent toward its center.