An anti-rust device for exposed steel bars for construction engineering

Abstract

The invention relates to an antirust device for exposed steel bars for construction engineering, comprising an antirust casing, a sealing device arranged at one end of the antirust casing, a valve sealingly connected to the end of the antirust casing away from the sealing device, one end closed and an opening The end seal is connected to the vacuum tube at the end of the valve away from the anti-rust sleeve, the air extraction hole opened on the vacuum tube, and the one-way valve installed in the air extraction hole and only allowing the gas in the vacuum tube to flow out of the vacuum tube; the volume of the vacuum tube is the anti-rust sleeve more than four times the volume of the tube. The invention has the effect of quickly installing on the exposed steel bar and performing anti-corrosion protection on the exposed steel bar without the aid of other equipment during installation.

Description

technical field [0001] The invention relates to an antirust device, in particular to an antirust device for exposed steel bars used in construction engineering. Background technique [0002] In the design and construction of reinforced concrete structures in construction projects, in order to eliminate problems such as structural cracks caused by shrinkage and deformation during the hardening process of concrete, deformation joints and post-cast concrete strips are usually set at regular intervals in reinforced concrete structures. Pre-embedded steel bars to ensure the integrity of the concrete structure. However, the parts of these pre-embedded steel bars exposed to the concrete will quickly rust in the air, and as time goes on, corrosion will occur, weakening the cross-section of the steel bars, causing the overall structure to be damaged at the joints after the concrete construction at the joints. It will form a weak link and even cause structural damage accidents. In o...

AI Technical Summary

Problems solved by technology

When the anti-rust device is in use, people need to manually operate the vacuum exhaust pipe continuously to extract the air in the main body of the anti-rust device and the cavity, so as to ensure that more than 80% of the gas in the anti-rust sleeve is pumped out. Anti-rust devices require a lot of effort, making it difficult for staff to install multiple anti-rust devices continuously, resulting in low installation efficiency

Images