Through the Wall Screw

Through the wall screw alias to pull bolt. For the wall template, the outer template between the pull, bear the side pressure of concrete and other loads, to ensure that the gap between the inside and outside side template can meet the design requirements, but also the template and its support structure fulcrum, the arrangement of the wall bolts on the overall, stiffness and strength of the template structure has a great impact.

The arrangement of the wall-crossing screws has a great influence on the integrity, stiffness and strength of the template structure. Wall screws generally use two ends of the round steel screws, also known as pull bolts, but also with flat steel ends left long holes with wedge iron inserted to secure wedge tight. An active wall-piercing bolt device, including a wall-crossing bolt rod with threaded ends, two conical tube sleeves at both ends of the wall bolt rod, two cone-shaped tube sleeves on the outside of the two cones respectively with two fastening bolt rods, the conical tube sleeve with internal iron core, iron core with internal threaded through holes, iron core outside the tapered nylon contact layer, nylon contact layer and iron core into a core of the core of the outer core of the six-core core.

Due to the double waterproofing of the threaded surfaces and stop plates of the inner bolts, the waterproofing of the wall is improved. High dimensional accuracy, can ensure the wall thickness uniform. Because of the high processing accuracy of each component of the removable and waterproof wall bolt assembly, the template positioning error can be within 2mm, so that the wall thickness of the pouring is uniform.