Anti-loosening stainless steel pre-embedded sleeve

Abstract

The invention discloses an anti-loosening stainless steel pre-embedded sleeve. The anti-loosening stainless steel pre-embedded sleeve comprises a main body, wherein the main body comprises a sleeve body and an anti-pulling device; a center hole is formed in the sleeve body, and an anti-loosening internal thread is arranged at one end of the center hole; and the anti-pulling device and the sleeve body are integrally formed and manufactured, the anti-pulling device is arranged at the end, away from the anti-loosening internal thread, of the sleeve body, and the ratio of the height of the anti-pulling device to the outer diameter of the sleeve body to the height of the main body is (1.2-1.5): 1: (2.5-4). According to the anti-loosening stainless steel pre-embedded sleeve, the anti-pulling device and the sleeve body are integrally formed, the structure is simple, machining is convenient, and the production efficiency is high. The anti-loosening internal thread is arranged on the sleeve body, so that the pre-embedded sleeve has an anti-loosening function, loosening can be prevented, and fixing is firmer. The height of the anti-pulling device, the outer diameter of the sleeve body and the height of the main body are limited, so that the maximum limited axial pulling force is guaranteed, and the strength of the anti-loosening stainless steel pre-embedded sleeve meets the mechanical requirements for pulling resistance and rotary shearing.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an anti-loosening 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. Therefore, most of the prior art adopts embedded sleeves to realize the installation of the channels. [0003] However, the pre-embedded sleeve in the prior art is processed by forging, rust removal, heating, forging forming, positioning,...

AI Technical Summary

Problems solved by technology

[0003] However, the pre-embedded sleeve in the prior art is processed by forging, rust removal, heating, forging forming, positioning, drilling, tapping, sand blasting, solid solution, post-treatment and other procedures after cutting off the stainless steel rod. The processing procedures are complicated, and most of them are produced by manual stand-alone machines, and the production efficiency is low.

In addition, the embedded sleeve in the prior art does not have the function of anti-loosening

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