Concrete filled steel tube bolting type check valve

Abstract

The invention relates to the field of buildings, in particular to a concrete filled steel tube bolting type check valve. The concrete filled steel tube bolting type check valve comprises a valve body, a steel plate belt and a check steel plate. The steel plate belt and the valve body are arranged oppositely, and the steel plate belt is fixedly connected with a connecting part through a connecting lug to form a circle for clamping a steel tube column to be poured. A main body is provided with concrete flow through holes which are opposite to concrete pouring ports in the steel tube column. The check steel plate is arranged on the side, close to the circle center, of the main body and used for stopping the concrete flow through holes from being communicated with the concrete pouring ports. After a concrete pumping tube and the steel tube column are connected through the cooperation between the valve body and the steel plate belt, concrete is conveyed into the steel tube column through the concrete pumping tube, and after conveying is finished, the check steel plate is inserted into the part between the valve body and the steel tube column, and the concrete is stopped from flowing back through the gravity. After the concrete filled steel tube bolting type check valve is not used, only the valve body and the steel plate belt need to be separated, cutting is not needed, labor and time are saved, and resource waste caused by the fact that the concrete pumping tube is cut when used every time is avoided.

Description

technical field [0001] The invention relates to the construction field, in particular to a steel pipe concrete bolted check valve. Background technique [0002] Concrete-filled steel pipe columns, also known as concrete-filled steel pipes, are concrete poured into steel pipes so that the steel pipes and concrete work together to enhance the strength and rigidity of the structure. [0003] During the construction of steel pipe concrete columns, the column foot often adopts the plug-in column foot with a cup opening reserved on the concrete foundation, that is, first install the steel pipe column 1 of the industrial plant, and then open a concrete pump at a distance of about 500mm from the steel pipe column 1 to the bottom of the column. Concrete pouring mouth 6 (such as Figure 5 shown), and then lift up from the bottom of the steel pipe column 1 to pour concrete, and then weld and close the 6 pouring ports of the concrete after filling, forming a combined structure in which ...

AI Technical Summary

Problems solved by technology

The construction process is complicated and time-consuming, and repeated welding and cutting not only affect the strength of the concrete pumping pipe, but also increase the loss of the concrete pumping pipe

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