Working principle of the gas spring as an elastic medium is an inert gas , the lubricating fluid to be sealed and the delivery pressure of the elastic member referred to as a gas spring , which sleeve is actually a variant of the air spring , but also to further improve the air sleeve elastic properties of the spring and development , so he has the general structural characteristics of the air spring . Usually the gas spring cylinder , the piston , the seal member and the external connection component . High-pressure nitrogen or inert gas and oil in the cylinder forming the circuit . So that the damping piston rod chamber and rodless lumen, the chamber pressure so that the two are equal . Use two-chamber compressibility produce elastic force area difference and gas. Gas spring with a compact structure , large working stroke ; smooth motion , can play a buffer role in damping ; nearly unchanged with a stable characteristic line ; simple, safe and reliable. However, higher processing costs . A sleeve -type air spring force principle , any known gas spring stroke s is the time to : F = initial pressure pVA / v-As the cylinder ; initial volume within the cylinder ; sectional area of the piston rod , depending on the use of gas springs different, and have different structures and types . China's current production has not lockable gas spring gas springs and locking gas springs categories. Non- locking gas spring locking gas spring principle of non- use needs based on two types of compression and tension spring air . Compressed gas spring compression gas spring principle widely used in automotive , construction equipment , medical equipment and other occasions , mainly from the supporting role . This spring structure is simple , the use of the piston rod downwards.
Pressed into the cylinder when the piston rod , the cylinder has a cylinder portion of the oil flow automatically into the cavity of the rod. Due to the pressure difference across the piston side of the cylinder , forcing the piston rod . Near the end , intraluminal fluid dampening effect. Ring features from stretching and compression curves can be seen in the formation of the entire trip into hydraulic damping and aerodynamic damping MD two AM . Stretching tension gas spring gas spring principle is mainly used for opening and closing doors and windows , fitness reset devices. Its principle with the same compression gas springs . Lockable gas spring works lockable gas springs can be divided into the corner by the use of lockable gas spring lift reconcile , their performance can be divided into rigid and elastic lockable gas spring , can be classified according to their structural characteristics and double Monocular lockable gas spring cylinder . Angle adjustment lockable gas spring principle angle adjustment lockable gas spring angle adjustment lockable gas spring angle adjustment lockable gas spring is a stepless adjustment element wide range of applications . Mainly for adjustable seats , medical bed , plotter and office equipment , etc. . Angle adjustment lockable spring is monocular structure. Floating piston is mounted rigid locking rod cavity add some oil. Do not install the floating piston is elastic lock , no liquid fuel rod chamber . Angle adjustment lockable gas spring gas , oil by closing a valve chamber and the rod rod chamber communication. When the shutter button is pressed a small , cut-off valve is open . Piston rod out ; When the button is released , the valve is closed , the spring will be locked ring formed by its characteristic lines in the work process , similar to the non- locking gas spring compression . But for the lifting of the gas spring force open the locked state to form an additional ring Fk characteristic line . Lockable gas spring lift principle lockable gas spring lift height adjustment is mainly used for rotating chair . This spring is generally binoculars structure and elasticity locked. Movement and angle adjustment lockable gas spring like . Seat adjustment lever by operating can slowly lift to reach the best position.