Novel sensor sealing device

Abstract

The invention discloses a novel sensor sealing device. The device comprises a sensor element, wherein the sensor element is cylindrically arranged; a shell is arranged on the side surface of the sensor element; a concave groove body is formed in one end surface of the sensor element; the groove body is internally provided with a sensitive shell; an outer ring surface and a pressing ring surface are arranged at the periphery of the groove body; the pressing ring surface is also concave; the pressing ring surface is 0.8 mm deeper than the outer ring surface; a support column is welded at the bottom end of the shell of the sensor element; a vase is welded at the bottom end of the support column; and a connection seat is arranged below the base. Compared with the conventional sensor elements,the device has the advantage that the structural sizes of relevant parts are changed to ensure that the pressing ring surface of the sensor element is 0.8mm lower than the outer ring surface of the shell, so that the clamping force of a flange is borne by the outer ring surface of the shell, the influences, on the stability of sensitive components, of flange assembling stress is decreased or eliminated, and the stability and yield of products are improved.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a novel sensor sealing device. Background technique [0002] For a long time, some instrument manufacturers have adopted a fully welded structure to ensure the sealing of the shell, and put the sensitive element into the sensitive shell, so that the welding ring surface of the sensitive element and the pressure ring is higher than the outer ring surface of the shell, so that the When two splint flanges are clamped, the clamping force will directly act on the sensitive components, resulting in assembly stress, which leads to the continuous release of residual stress over time during the use of the instrument, resulting in zero drift. Contents of the invention [0003] The invention provides a novel sensor sealing device, which solves the problems in the background technology. [0004] In order to solve the problems of the technologies described above, the present invention provides the fo...

AI Technical Summary

Problems solved by technology

[0002] For a long time, some instrument manufacturers have adopted a fully welded structure to ensure the sealing of the shell, and put the sensitive element into the sensitive shell, so that the welding ring surface of the sensitive element and the pressure ring is higher than the outer ring surface of the shell, so that the When clamping two splint flanges, the clamping force will directly act on the sensitive components, resulting in assembly stress, resulting in the continuous release of residual stress over time during the use of the instrument, resulting in zero drift phenomenon

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