Wedge plug ruler for project supervision

Abstract

The invention discloses a wedge plug ruler for project supervision. The wedge plug ruler comprises a hollow shell of which the side edge is open; a limiting tube running through the shell is arrangedat the top end of the shell; the limiting tube is sleeved with a plurality of single unit ruler sheets; the single unit ruler sheets are provided with through holes for enabling the limiting tube to penetrate through; two spring plates pressed against the single unit ruler sheets are symmetrically arranged on the tube wall of the limiting tube; an extrusion part and an ejection part for driving the extrusion part to apply a pressure to the spring plates are arranged in the limiting tube and between the two spring plates; the extrusion part comprises a connection ring coaxially arranged insidethe limiting tube; the outer ring surface of the connection ring is hinged with two extrusion stems; the other ends of the extrusion stems are hinged with the spring plates; and two extrusion stems are distributed in a V shape on the connection ring. The wedge plug ruler for project supervision, which is disclosed by the invention, has the advantage of preventing the single unit ruler sheets fromslipping when the wedge plug ruler is in use.

Description

technical field [0001] The invention relates to the field of detection tools, in particular to a wedge-shaped feeler gauge for engineering supervision. Background technique [0002] The feeler gauge is a measuring tool, mainly used for the measurement of gap spacing. The single-piece feeler gauge is a gauge composed of a group of thin steel sheets with different thickness differences. The inspector can judge whether the size of the measured gap spacing is qualified according to the degree of tightness of the feeler gauge and the surface to be tested. [0003] At present, the patent document with the notification number CN203550812U discloses a new type of penetrant test fluorescent display size measuring feeler gauge, which is composed of 11 different standard physical size individual ruler pieces and the feeler gauge shell, each of the individual ruler pieces Set in the feeler gauge shell, the fixed end of each single piece and one end of the feeler shell are fixed by rive...

AI Technical Summary

Problems solved by technology

[0004] Although this new type of penetrant test fluorescent display size measurement feeler gauge can complete the size measurement of the fluorescent display on the surface of the parts, effectively ensuring the accuracy of the test results, but when this new type of penetration test fluorescent display size measurement feeler gauge is used, it needs When two or more single-piece scales are used, the friction between the feeler gauge and the gap will cause the single-piece scales to slip and cause mutual staggering, which will cause great inconvenience to the measurement

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