Sealing up screw

Abstract

The invention discloses a sealing up screw which is suitable for an underground shearing force wall body or concrete wall with a water proof requirement and belongs to the technical field of building members. The sealing up screw comprises three sealing up pieces with holes, a sleeve, a sleeve head and a plug, wherein the three sealing up pieces are respectively tightly connected to two end parts and the center end of the sleeve, one end of the sleeve head is provided with a small axial hole and the other end is provided with a big axial hole, the small axial hole is communicated with the big axial hole, one end of the plug is provided with an external thread, two ends of the sleeve are internally provided with internal threads matched with the external threads of the plug, the big axial hole in the sleeve head is matched with and sleeved on two ends of the sleeve, and the end face of the sleeve head is clung to the sealing up pieces. Compared with the prior art, the invention has simple and convenient structure, material saving, convenient and labor-saving disassembly and assembly, construction time reduction, construction cost saving, repeated utilization of a disposable used reinforced screw with high cost, and the like.

Description

technical field [0001] The invention discloses a water-stop screw, which is suitable for underground shear walls or concrete walls requiring waterproofing, and belongs to the technical field of building components. Background technique [0002] For underground shear wall formwork construction, components with waterproof requirements usually use finished waterproof screws. Its structure is a screw with a section of thread twisted at both ends. This section of thread is set for anti-skid when reinforcing the formwork; a water-stop piece is fixed in the middle of the screw, and the water-stop piece and the screw are sealed and welded. The end corresponds to the water-stop sheet in the middle, and the water-stop disc is symmetrically fixed, and the water-stop disc is tightly provided with a detachable top block. When in use, the screw is placed horizontally in the shear wall, and the distance between the outer sides of the top blocks on both sides is equal to the thickness of t...

AI Technical Summary

Problems solved by technology

The disadvantage is that the screw is for one-time use, which leads to a lot of material waste and high construction cost. That is, the screw exposed on the surface of the wall needs to be cut off when the formwork is removed, and then the top block is chiseled out, and then the hole in the top block is filled with cement mortar And it is even with the surface of the wall. This series of form removal steps are quite labor-intensive, which leads to the problem of high construction costs.

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