4results about How to "Avoid stress concentration situations" patented technology

This utility model provides a length-adjustable tie rod, scissor brace, and scaffolding, including a fixed rod and a movable rod. The near end of the fixed rod has an inner hole for the movable rod to be inserted, and the fixed rod and the movable rod slide in the axial direction of the two. A locking device is provided between the fixed rod and the movable rod. The locking device can switch between a locked state and an unlocked state to infinitely lock or unlock the depth of the movable rod inserted into the fixed rod. Thus, when it is necessary to adjust the length of the tie rod, simply switch the locking device to the unlocked state, infinitely adjust the depth of the movable rod inserted into the fixed rod as needed, and then switch the locking device to the locked state to fix the relative position of the fixed rod and the movable rod. This effectively solves the drawback of existing tie rods that cannot achieve infinite adjustment and greatly improves the application range of tie rods.

The utility model discloses a stud clamping ribbon with high pullout force, which comprises a ribbon body and a hollow stud connecting seat which are connected together, the stud connecting seat is provided with an opening I allowing a stud to enter, a clamping strip is fixed on the inner wall of the stud connecting seat, the clamping strip comprises a clamping part, a connecting part and a supporting part I, and the clamping part is connected with the connecting part. The connecting part is connected to the inner wall of the stud connecting base, the clamping part and the first supporting part are both connected to the connecting part, the clamping part and the first supporting part are fixed to each other, and when the stud connecting base is stressed, the first supporting part can abut against the inner wall of the stud connecting base. According to the scheme, the first supporting part is arranged on the clamping strip, the first supporting part can abut against the inner wall of the stud connecting base when the stud connecting base is subjected to pulling-out force, due to the influence of the supporting force, the force for overcoming the supporting force needs to be increased on the basis that the stud connecting base needs to be pulled out on the basis that the original pulling-out force is overcome, and therefore the pulling-out effect of the stud connecting base is improved. And the pull-out resistance of the tie stud connecting seat is effectively improved.