The utility model discloses a sliding door and window buffer damping device relates to door and window technical field. The utility model discloses a frame, and the frame inside is installed with the door and window body, and the door and window body one side is provided with sealing mechanism. The utility model discloses the cooperation of the horizontal plate, the movable slot and the opening and closing type sealing
gasket in sealing mechanism, effectively insulates the
erosion of external environment to buffer mechanism, avoids the aging or damage caused by
ultraviolet rays, rainwater and dust, and significantly prolongs the service life of device. Meanwhile, the sealing structure always keeps
closed state when the door and window slide, further improves the sealing performance, and the buffer mechanism realizes the primary deceleration through the contact of the roller and the buffer deceleration pad, combines the spring, the elastic deformation of movable plate and absorbs the
impact energy, forms the first -stage buffer, and the rubber
insertion rod and the buffer pad's friction cooperation further consume the
kinetic energy, form second -stage buffer. Multistage
buffer design significantly reduces the
impact force and
noise when the door and window close, and improves the use comfort.