Device for filling conductive medium in single-hole airtight small container

Abstract

The invention discloses an apparatus for filling a conducting medium into a single-hole closed small container. The apparatus is a vacuum filling apparatus, and comprises a filling subsystem, an evacuating subsystem, a blowing cleaning subsystem, a console and a sealed container, the evacuating subsystem makes the inside and the outside of the single-hole closed small container be in a vacuum state, the conducting medium is filled into the single-hole closed small container through the filling subsystem, and the conducting medium residual in a pipeline system is cleaned through the blowing cleaning subsystem. The conducting medium can be fast filled after the formation of vacuum in the inner chamber of the single-hole closed small container by adopting the apparatus; the inside and the outside of an elastic element in an elastic element sensor are simultaneously evacuated, so there is nearly no pressure difference, and the pressure difference in filling is small, so the elastic element is effectively protected; and there are no bubbles in the inner chamber of the elastic element sensor after the filling of the conducting medium, so the detection precision of the single-hole closed small container is guaranteed.

Description

technical field [0001] The present invention relates to a liquid filling device, more specifically, the present invention relates to a liquid vacuum filling device. Background technique [0002] The small single-hole airtight container is used for liquid level measurement. It includes a display, a catheter, and an elastic element sensor. The bellows in the display and the inner cavity of the elastic element sensor are connected by a catheter to form a closed cavity. In this cavity, the Fill with conductive medium. When the small single-hole closed container is used to measure the liquid level, the liquid pressure on the elastic element sensor is transmitted to the display through the conductive medium, and the height of the liquid level is directly displayed on the display. In the manufacturing process of the single-hole closed small container, the filling of the conductive medium into the single-hole closed small container is generally carried out in a natural state with a...

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Problems solved by technology

In the manufacturing process of the single-hole closed small container, the filling of the conductive medium into the single-hole closed small container is generally carried out in a natural state with a filling device. During the filling process, because the diameter of the catheter is very small, The conductive medium will close the inner cavity of the elastic element sensor, so that the air in the inner cavity of the elastic element sensor cannot be discharged in time, forming an internal air pressure. In this way, on the one hand, the conductive medium in the catheter tube is hindered from descending, and the filling time is very long. The efficiency is very low, and after filling, the inner cavity of the elastic element sensor is likely to have air that cannot be discharged and generate air bubbles, which will affect the detection accuracy in the future; on the other hand, the increase in the inner cavity pressure of the elastic element sensor may cause the elastic element to be damaged damage due to plastic deformation

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