Stainless steel pre-buried sleeve

Abstract

The invention discloses a stainless steel pre-buried sleeve, which comprises an anti-pulling device, a connecting rod and an inner threaded sleeve. The anti-pulling device is fixedly mounted at the upper end of the connecting rod, and the lower end of the connecting rod is fixedly connected with the inner threaded sleeve; and the circumcircle diameter ratio of the anti-pulling device to the connecting rod to the inner threaded sleeve is (0.5 to 3) to 1 to (0.15 to 2.35). The anti-pulling device is of a regular polygon structure, after the stainless steel pre-buried sleeve is buried in concrete, pulling force can be borne through the anti-pulling device in a specific shape, maximization of the axial pulling force borne by the stainless steel pre-buried sleeve is ensured, and thus operatingstability is further guaranteed; and meanwhile, overall rotation can be effectively prevented through the regular polygon structure, and thus overall loosening caused by rotating can be avoided.

Description

technical field [0001] The invention relates to the field of spare parts for construction engineering, in particular to a stainless steel pre-embedded sleeve. Background technique [0002] With the development of the rail transit industry, the pre-buried channel has also been widely used. During the use of the channel, if it is damaged or corroded, it cannot be replaced, and the full-ring installation also causes waste. Installation is also problematic. Due to the need for deflection correction and turning, the segment cannot be installed according to the theoretical position during installation, which causes the misalignment of the embedded channel and brings great inconvenience to the subsequent installation of electromechanical equipment. Contents of the invention [0003] The object of the present invention is to provide a stainless steel pre-embedded sleeve which is convenient for replacement and maintenance, improves construction convenience, and reduces engineering ...

AI Technical Summary

Problems solved by technology

[0002] With the development of the rail transit industry, the pre-buried channel has also been widely used. During the use of the channel, if it is damaged or corroded, it cannot be replaced, and the full-ring installation also causes waste. Installation is also problematic. Due to the need for deflection correction and turning, the segment cannot be installed according to the theoretical position during installation, which causes the misalignment of the embedded channel and brings great inconvenience to the subsequent installation of electromechanical equipment.

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