(1) distance connection: weldment in the distance on the bar set, bar length, join point spacing shape; 
(2) variable from the link: link for single parts, by tightening bolt clamping on any part of the bar. 

According to the divided fixed nodes of the workers work mode
(1) insert the matter; 
(2) tighten the bolt. 
In the vertical rod connected with the stud, there are 3 kinds of force transmission mode:
(1) socket docking handing down force. The poling docking, connecting rod or socket pipe is used to ensure the docking in good condition; 

(2) the pin rod connecting pin rod shearing force; 
(3) the screw connection of meshing force. The external thread of inner tube and outer tube (set) the internal thread of meshing force. Among them after more than two kinds of force transmission way used to regulate the stud connection to the height requirement.
Mobile frame scaffolding as a kind of infrastructure construction, widely used in all kinds of aiming at the construction site, has played a great supporting role. Bar ends flattening part with pin holes and assembled with lock pin lock on the door frame stud.

Mobile frame scaffold is the edge of the workers to build a light rail fence, has more than 10 meters high, each column below there is a wheel, the scaffold is not workers. Then, the workers going to move the hand to push to the construction of the south, Mobile frame hand foot collapsed, the cable on the side of right to. Three workers of the waist and legs were scattered onto the iron pipe, but were slightly injured, they all have carried on the simple treatment to the hospital.