2results about How to "Achieve circumferential limit" patented technology

This utility model relates to the field of building construction technology, specifically a formwork fastening device for building construction, comprising: a tie rod, wherein at least two guide grooves are spaced apart circumferentially on the outer wall of the tie rod; two clamps, each clamp being movably fitted onto the tie rod, and each clamp having a guide protrusion corresponding to each guide groove; and an adjustment mechanism connected to the corresponding guide protrusion on each clamp. This utility model forms a cooperative limiting structure by providing guide grooves on the tie rod, corresponding guide protrusions on the clamps, and an adjustment mechanism driving their movement. During installation, the adjustment mechanism drives the guide protrusions to maintain a gap with the guide grooves, facilitating clamp fitting and achieving circumferential limiting through their cooperation. During locking, the adjustment mechanism drives the guide protrusions to embed into the guide grooves and fit tightly, using this adjustment to achieve axial limiting of the clamps while simultaneously enhancing the circumferential anti-rotation effect.