Setscrew, affixation structure, affixation method, and sealing structure

Abstract

Provided are a setscrew, an affixation structure, an affixation method, and a sealing structure, in which the amount of exposure of the setscrew is reduced and the setscrew is prevented from coming out of a female thread. An affixation structure affixes a first member (20), in which a female thread (21) is formed, and a second member (30), which is provided slidable relative to the first member (20) and in which a through-hole (31) having a diameter smaller than the inner diameter of the female thread (21) is formed. The affixation structure is characterized in that the first member (20) and the second member (30) are affixed by positioning the second member (30) relative to the first member (20) while the center axes of the female thread (21) and of the through-hole (31) are aligned with each other, engaging the male thread of the setscrew (10) with the female thread (21), and inserting a small-diameter section (13) into the through-hole (31).

Description

Technical field [0001] The invention relates to a stop bolt, a fixing structure, a fixing method and a sealing structure. Background technique [0002] In the prior art, a stop bolt is widely used as a fixing member for fixing two parts. When two parts are fixed with a stop bolt, generally, a positioning hole is formed in one part, and an internal thread is formed in the other part. Then, with the internal thread and the central axis of the positioning hole aligned, position the above two components, and screw the stop bolt into the internal thread from the female thread side until the head end of the stop bolt enters the position in the positioning hole , Thereby fixing the above two components. In addition, generally speaking, in order not to hinder the tightening work with a tightening tool, an internal thread is formed on a member on the side with a larger space. For example, when two cylindrical members are fixed, a female screw is formed on the outer member in the radial...

AI Technical Summary

Problems solved by technology

In addition, part of the shaft of the stopper bolt may protrude from the groove, and part of the groove may be blocked by the shaft.

In the case of the above, it will result in a decrease in the ability to make the fluid flow with the small impeller

[0006] In additi

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