Moving screw full-grouting sleeve rebar connector

Abstract

The invention relates to a moving screw full-grouting sleeve rebar connector. The moving screw fully grouting sleeve rebar connector is connected with a first deviated rebar and a second deviated rebar, and includes a moving screw, a tension piece, a connecting sleeve, a full-grouting sleeve, a sealing plug and a cement-based paste, one end of the connecting sleeve is connected with the second rebar, and the other end of the connecting sleeve is connected with the moving screw; the first rebar extends into the full-grouting sleeve, and the full-grouting sleeve and the first rebar are sealed through the sealing plug; the cement-based paste is poured into the full-grouting sleeve; and the tension piece is arranged on the outer side of the moving screw, after pulling the tension piece, the moving screw rotatably extends out of the connecting sleeve and is inserted into the full-grouting sleeve filled with the cement-based paste, and connection of the connector is realized. According to the moving screw full-grouting sleeve rebar connector, the difficult problem of non-compactness of grouting in connection of the grouting sleeve with the assembled structure is solved, and the various inconvenience and construction hidden troubles due to the fact that pre-embedded rebars protruding from a prefabricated part are also avoided.

Description

technical field [0001] The invention relates to the technical field of steel bar connection, in particular to a mobile screw full-grouting sleeve steel bar connector. Background technique [0002] In the field of current engineering construction, the use of prefabricated buildings is becoming more and more common. The most widely used method for the connection of steel bars in prefabricated building structures is grouting sleeve connection. However, the grout in the grouting sleeve needs to pass through thinner pipes later. For grouting and pressing, due to the narrow space in the grouting sleeve, it is very easy to cause the grout to be not dense due to factors such as incomplete air discharge during the grouting and pressing process, and there is currently no effective and reliable detection method for non-destructive grouting compactness At the same time, if it is not compacted, it is difficult to use simple grouting and other methods to repair it. Therefore, the traditio...

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Problems solved by technology

[0002]The use of prefabricated buildings in the field of current engineering construction is becoming more and more common. In the prefabricated building structure, the connection of steel bars is the most widely used method of grouting sleeve connection. However, since the grout in the grouting sleeve needs to be poured and pressed in through a thinner pipe in the later stage, due to the narrow space in the grouting sleeve, it is very easy to cause the grout to be not dense during the grouting and pressing process due to factors such as incomplete air discharge. Moreover, there is currently no effective and reliable detection method for non-destructive testing of grouting compactness. At the same time, if it is not dense, it is difficult to use simple grouting and other methods to repair it. Therefore, the traditional grouting sleeve connection method has a strong construction concealment. , Quality is difficult to control, lack of reliable detection methods and inspection standards and other shortcomings

[0003]Another construction method of grouting sleeve connection is to pour the slurry reinforcement into the sleeve before connecting, and then the pre-embedded reinforcement on the other side of the prefabricated component The connection can be realized by inserting into the sleeve filled with grout. Although this method can avoid the inconsistency of the grout, since the steel bar inserted into the sleeve needs to protrude from the surface of the prefabricated component, it will greatly affect the transportation and installation of the prefabricated component. Inconvenient, and the protruding steel bars on the prefabricated components are easily deformed due to contact and other reasons during transportation and installation, which will cause hidden dangers to the later construction and project quality

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