The utility model relates to a damping structure and cleaning
machine for cleaning
machine, include: base, connect on the box of cleaning
machine,
cam arm, lower end rotation is connected on the base, the upper end is connected in the door body,
cam arm inside hollow forms the installation cavity, and this installation cavity has the cooperation
assembly that can provide damping under the door closing state, eliminate the damping under the door opening state inbuiltly, the utility model discloses the cooperation
assembly for providing damping is directly inbuilt installation in the inner chamber of
cam arm, not only convenient installation, also control the height of
camshaft and damping structure conveniently, thereby improve more reliable damping effect, utilize the first
piston, second
piston and the
piston ring arranged at the interval between the both and realize medium exchange, when closing the door, the small medium flow area, will provide greater damping effect, when opening the door, the big medium flow area, do not provide damping, like this user only needs to overcome the door body gravity and realizes the opening of the door, reduce the opening force, to improve the user experience.