Single-sleeve double-spherical nut offset rod piece connector

Abstract

The invention relates to a single-sleeve double-spherical nut offset rod piece connector. The single-sleeve double-spherical nut offset rod piece connector is connected with a first offset rod piece and a second offset rod piece which are embedded in two prefabricated parts, and includes an H-shaped sleeve, a first spherical nut, a second spherical nut, a first end anchor plate and a second end anchor plate, wherein the first end anchor plate and the second end anchor plate are arranged at the two ends of the H-shaped sleeve to form a bamboo-like anchoring sleeve; and the first spherical nut is arranged between the H-shaped sleeve and the first end anchor plate, the second spherical nut is arranged between the H-shaped sleeve and the second end anchor plate, and the first spherical nut andthe second spherical nut are connected with the first rod piece and the second rod piece correspondingly. According to the single-sleeve double-spherical nut offset rod piece connector, the size is small, materials are saved, the single-sleeve double-spherical nut offset rod piece connector adapts to deviation of a butt rod piece in all directions, and the requirements of existing mechanical connection specifications are met.

Description

technical field [0001] The invention relates to the technical field of connection of assembled structures, in particular to a single-sleeve double-spherical nut offset rod connector. Background technique [0002] The current prefabricated structure has become a new industry nationwide, but whether the connection to the prefabricated structure is safe and reliable, whether the prefabricated structure has actually improved efficiency, whether it has really accelerated the speed, to what extent it has improved the environment, etc. However, there are many controversies; in the assembly process of prefabricated structures, it is inevitable that the ordinary steel bars, prestressed steel bars and other rods fixed on the two butt joints will have deviations within the allowable range during the butt joint. In order to adapt to this butt joint At present, grouting sleeve connection, anchor grout lap connection and other methods are mostly used. These connection methods have disadva...

AI Technical Summary

Problems solved by technology

[0002] The current prefabricated structure has become a new industry nationwide, but whether the connection to the prefabricated structure is safe and reliable, whether the prefabricated structure has actually improved efficiency, whether it has really accelerated the speed, to what extent it has improved the environment, etc. However, there are many controversies; in the assembly process of prefabricated structures, it is inevitable that the ordinary steel bars, prestressed steel bars and other rods fixed on the two butt joints will have deviations within the allowable range during the butt joint. In order to adapt to this butt joint At present, grouting sleeve connection, anchor grout lap connection and other methods are mostly used. These connection methods have disadvantages such as complicated construction technology, undetectable, unclear acceptance standards, and long waiting time to reach strength.

[0003] Another way of connecting rods such as steel bars is to use bolted connections, but bolted connections not only significantly weaken the section of the member, but also require a fixed angle of wrench rotation for bolt tightening, which requires a large space for the connecting piece

[0004] For example, the prefabricated steel bar connection structure of the famous Finnish Peikko company pre-embeds an angle steel with an end face, and then fixes one side of the steel bar on the angle steel by welding, and at the same time opens a hole on the end face, and then passes the other side of the steel bar through it. The end face is connected with bolts; although this method also realizes the connection with deviation of the butt joints, the angle steel used takes up a lot of space, the force is not direct enough, and when the number of butt steel bars is large, the installation and installation of the angle steel and bolts are difficult. Tightening is relatively complicated, so it is difficult to promote in a large area, and it is only used in the connection of small square columns in industrial plants.

[0005] As there is no reliable and convenient connection method between steel bars and prestressed tendons of prefabricated components, the current prefabricated structure has been greatly restricted and questioned, and the assembly rate is difficult to further improve

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