Rebar connector with movable casing and semi-grouting sleeve

Abstract

The invention discloses a rebar connector with a movable casing and a semi-grouting sleeve. The rebar connector is used for connecting a first rebar and a second rebar which have deviations. The rebar connector comprises the semi-grouting sleeve, a sleeve end anchor plate, cement-based slurry, a connecting rod, the movable casing and a tension part; one end of the movable casing is connected with the first rebar, and the other end of the movable casing is connected with the connecting rod; the semi-grouting sleeve is connected with the sleeve end anchor plate, and the sleeve end anchor plate is connected with the second rebar; the cement-based slurry is grouted into the semi-grouting sleeve; and the tension part is arranged on the outer side of the movable casing, after the tension part is pulled, the movable casing gradually rotates and pushes the connecting rod to extend out of a prefabricated component, the connecting rod is inserted into the semi-grouting sleeve fully filled with the cement-based slurry, and connector connection is achieved. According to the movable casing semi-grouting sleeve rebar connector, the problem that grouting is not compact in connection of the grouting sleeve of the assembly structure is solved, and various inconvenience and construction hidden dangers caused by pre-embedded rebars extending out of the prefabricated component are also avoided.

Description

technical field [0001] The invention relates to the technical field of connection of steel bars, in particular to a steel bar connector of a mobile casing semi-grouting sleeve. 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, th...

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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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