An intelligent anti-filling spool and valve

Abstract

The invention provides an intelligent anti-filling valve core and a valve. The valve core comprises an upper valve core, a lower valve core, a sailboard, filling gas through holes running through the upper valve core and the lower valve core, a sailboard cavity arranged between the upper valve core and the lower valve core and a magnet A, wherein the outer surface of the lower valve core is in closed match with the wall of the valve core cavity of a valve body; the sailboard cavity comprises a valve core inclined plane arranged in the axial inclining direction of the valve core, a valve core top positioned at the upper part of the upper valve core serves as the top of the sailboard cavity, and the outer surface of the valve core top is in closed match with the wall of the valve core cavity; the filling gas through holes comprise a top hole in the valve core top and a bottom hole penetrating the lower valve core or the upper and lower valve cores, and the upper end opening of the bottom hole is arranged on the valve core inclined plane; the sailboard freely rotates in the sailboard cavity around the lower end of the sailboard cavity, and the working surface of the sailboard can work together with the upper end opening of the bottom hole to block the bottom hole; the sailboard is an iron magnetic part or a meta-magnetic part; the magnet A is arranged on the upper side of the valve core inclined plane and in the position capable of pulling in the upper end of the sailboard, and the magnetic force of the magnet ensures that the sailboard is next to the valve core inclined plane without influencing the situation that the sailboard rotates to the open state under the action of a valve core opening device. The anti-filling reliability of the valve is improved.

Description

technical field [0001] The invention relates to a valve core used for an anti-filling structure of a pressure container valve, and also relates to a valve using the valve core. Background technique [0002] figure 1 Shown is a valve used on a liquefied petroleum gas cylinder, including a valve body 200 and a valve core 100 installed in the valve core cavity of the valve body 200 . Such as Figure 2 to Figure 6 As shown, the traditional intelligent anti-filling spool 100 includes an upper spool 110, a lower spool 130, a sail plate 120 and a filling gas through hole arranged on the upper spool 110 and the lower spool 130; The outer sides of the spool 110 and the lower spool 130 are airtightly matched with the spool cavity wall of the valve body 200; a sailboard cavity is set between the upper valve core 110 and the lower valve core 130, and the sailboard 120 can rotate freely in the sailboard cavity ; On the upper valve core 110 in the sail board cavity, an inclined incline...

AI Technical Summary

Problems solved by technology

[0008] One of the technical problems to be solved by the present invention is to provide an intelligent anti-filling valve core, which overcomes the defect that the existing anti-filling valve core is easy to be opened and causes the anti-filling function to fail

[0009] The second technical problem to be solved by the present invention is to provide a valve that uses the above-mentioned intelligent anti-filling spool to overcome the defect that the anti-filling spool of the existing valve is easy to be opened, resulting in the failure of the anti-filling function

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