A valve sealing cone surface diameter measuring instrument

Abstract

The invention discloses a valve sealing cone surface diameter measuring instrument. The valve sealing cone surface diameter measuring instrument comprises a supporting plate; a slide channel which isdistributed transversely is formed at the middle of the upper end surface of the supporting plate; the left end and right end of the upper part of the slide channel are symmetrically provided with V-shaped clamping plates; the V-shaped openings of the V-shaped clamping plates directly face the middle position of the supporting plate; the upper ends of the V-shaped clamping plates are vertically and fixedly connected with connecting rods respectively; and the left end and right end of the slide channel are movably connected with push rods through hinges respectively. According to the valve sealing cone surface diameter measuring instrument of the present invention, a movable rod on a second supporting frame at the middle position of the rear end of the supporting plate is made to slide downward, so that the needle tips of Z-shaped needle bodies at the lower ends of rotating blocks at the rear end of the movable rod can extend outwards to abut against two sides of an edge of a cone surface, wherein the rotating blocks are connected by a rotating pin; since needle tip point contact is adopted, errors can be reduced; the needle tips of the Z-shaped needle bodies at the upper ends of the rotating blocks extend to two sides so as to abut against two ends of slide sleeves which sleeve a dividing ruler body, so that the slide sleeves can slide away, and therefore, an operator can be facilitated to read numerical values by means of scale marks aligned with the slide sleeves, and the sum of the numerical values and a distance between two zero scale marks is the diameter of the cone surface.

Description

technical field [0001] The invention relates to the technical field of valve sealing cone surface measurement, in particular to a valve sealing cone surface diameter measuring instrument. Background technique [0002] The valve is a device used to control the direction, pressure and flow of the fluid in the fluid system. It is a control component in the pipeline fluid delivery system. The sealing performance of the valve is particularly important. To ensure the sealing performance, the processing size of the sealing surface is very important The shortcoming of the general valve sealing cone surface measuring device is that: the general sealing surface is basically an oblique cone surface, and the vernier caliper on the market cannot enter the valve to measure the diameter of the sealing position due to the shape limitation. Certain relative dimensions are measured, which can easily lead to errors and affect sealing performance. Contents of the invention [0003] The objec...

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Problems solved by technology

[0002] The valve is a device used to control the direction, pressure and flow of the fluid in the fluid system. It is a control component in the pipeline fluid delivery system. The sealing performance of the valve is particularly important. To ensure the sealing performance, the processing size of the sealing surface is very important The shortcoming of the general valve sealing cone surface measuring device is that: the general sealing surface is basically an oblique cone surface, and the vernier caliper on the market cannot enter the valve to measure the diameter of the sealing position due to the shape limitation. Certain relative dimensions are measured, which can easily lead to errors and affect sealing performance

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