Gas spring buffer is a kind of labor-saving lifting spring, which can be divided into self-locking gas spring (such as the lifting of the bottom of the seat, the back of the boss's chair, etc.), non self-locking gas spring (such as the lifting support of the trunk and closet door). The structure of gas spring is mainly composed of sleeve, piston and piston rod. High pressure air or high pressure nitrogen is added into the sleeve, Due to the unequal area at both ends of the piston, the differential pressure is generated to push the piston and piston rod to move and support people or heavy objects.
Gas spring buffers are also widely used on yachts: