Damping mechanism for bottom connection of tower crane cab

The utility model relates to a damping mechanism for tower crane cab bottom connection, which comprises a base (1) and a damping piece (2) connected to the base (1), the damping piece (2) comprises a group of fixed plates (201) fixedly arranged on the base (1), a group of sliding plates (202) consistent with the fixed plates (201) in shape are arranged in the fixed plates (201), and the tops of the sliding plates (202) are connected with an upper plate (2031); a lower mounting groove (204) is further fixedly formed in the position, located in the fixing plate (201), of the base (1), a threaded rod (208) is arranged in the middle of an upper plate (2031) and fixed through a first nut (209) and a second nut (210) which are arranged up and down, and the lower portion of the threaded rod (208) is sleeved with an upper mounting groove (207); the lower mounting groove (204) and the upper mounting groove (207) are each provided with two concave rings, the outer concave ring is connected with a first spring (205) in