Integrated inner/outer caliper capable of realizing direct reading

Abstract

The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated inner / outer caliper capable of realizing direct reading. The integrated inner / outer caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; and the clamping section is provided with a locking device for locking the pair of caliper arms in a certain included angle.

Description

technical field [0001] The technology relates to measuring tools, and provides a linear dimension measuring tool, especially an integrated inner and outer caliper that can be directly read. It can be used as an outer caliper when the inner diameter is equal to the size, and the measurement data can be directly read out. Background technique [0002] In the prior art, when measuring linear dimensions such as wall thickness, inner diameter, and groove width of a part, inner calipers and outer calipers are often used for auxiliary measurement. Using other measuring tools to measure the linear size of the opening of the caliper, the test results are affected by the skills of the inspectors, and it is difficult to ensure that the opening of the caliper does not change, and it is difficult to ensure the accuracy of the measurement. In addition, the common caliper in the prior art is a single inner caliper and an outer caliper, which has a single function, cannot directly read the...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when measuring linear dimensions such as wall thickness, inner hole diameter, and groove width of parts, inner calipers and outer calipers are often used for auxiliary measurement. After the opening of the calipers corresponds to the size to be measured, the calipers need to be removed. Use other measuring tools to measure the linear dimension of the caliper opening. The test results are affected by the skills of the inspectors. It is difficult to ensure that the caliper opening does not change, and it is difficult to ensure the accuracy of the measurement.

In addition, the common caliper in the prior art is a single inner caliper and outer caliper, which has a single function, cannot directly read the measurement results, and cannot meet the requirements of direct and effective measurement.

Images