Bridge lifting used three-axial parallel mechanism

A bridge lifting used three axial parallel mechanism, comprising:

• a stationary platform;
• a movable platform, disposed corresponding to the stationary platform;
• a first lifting unit, movably disposed at an end of the stationary platform with one end thereof and at an end of the movable platform with the other end;
• a second lifting unit, movably disposed at an end of the stationary platform with one end thereof and end of the movable platform with the other end;
• a third lifting unit, movably disposed at the other end of the stationary platform with one end thereof and end of the movable platform with the other end,
• wherein the rotational axis connection seat comprises a connection seat combined with the jack, a sleeve movably combined with the connection seat, and a rotational axis connected to the connection seat and the sleeve.

A bridge lifting used three axial parallel mechanism, comprising:

• a stationary platform;
• a movable platform, disposed corresponding to the stationary platform;
• a first lifting unit, movably disposed at an end of the stationary platform with one end thereof and at an end of the movable platform with the other end;
• a second lifting unit, movably disposed at an end of the stationary platform with one end thereof and end of the movable platform with the other end;
• a third lifting unit, movably disposed at the other end of the stationary platform with one end thereof and end of the movable platform with the other end,
• wherein the second lifting unit comprises a jack, a pressure sensor male-connector disposed on the top of the jack, a pivot movably combined with the movable platform and the pressure sensor male-connector, a male connector disposed at the bottom end of the jack, a pivot movably combined with the stationary platform and the male connector, and a shift sensor connected to the jack.