Filling limiting bottle valve

Abstract

The invention discloses a filling limiting bottle valve, comprising a bottle valve; an upper seat and a lower seat are arranged in a valve hole of the bottle valve; a rotatable movable seat sliding up and down is arranged in the valve hole between the upper seat and the lower seat; the upper seat, the lower seat and the movable seat are all provided with through holes; an eccentrically arranged permanent magnet is fixed on the movable seat; a fixed magnetic part is arranged and is matched with the permanent magnet for driving the movable seat to rotate, so the through hole of the movable seat and that of the lower seat are staggered; an elastic part is arranged and can drive the movable seat to slide off the lower seat. An air path of the bottle valve is opened and closed by the movable seat fixed with the eccentric permanent magnet, so the smoothness of the air path during the inflating and deflating of the bottle valve is ensured.

Description

technical field [0001] The invention relates to the technical field of bottle valves, in particular to a bottle valve that can be applied to verification identification to restrict filling. Background technique [0002] Liquefied gas filling is an industry strictly regulated by the state. In order to facilitate industry management, identification has been used to strengthen the management of liquefied gas filling. Add identification tags to the steel cylinders respectively. When filling, the gas can only be inflated after the identification labels on the steel cylinders pass the identification of the identification device on the gas filling gun. coming security risks. [0003] In a published document (liquefied gas cylinder valve CN202188214U), it uses an inclined magnetized closure to open and close the diversion hole of the cylinder valve. When inflating, after the identification instrument on the inflating gun recognizes the logo of the steel cylinder, the electromagnet...

AI Technical Summary

Problems solved by technology

The unrecognized steel cylinder cannot start the electromagnetic generator, and the closure is in the state of closing the diversion hole and cannot be inflated

However, when this bottle valve is inflated, the inflation pressure will be too large. When the inflation pressure is greater than the electromagnetic force, it will press the opened closure to close the diversion hole, resulting in inability to inflate; and when using gas, its Relying on the pressure inside the bottle against the closure to open the diversion hole, when there is not much liquefied gas in the bottle, the pressure in the bottle decreases and the closure cannot be opened, resulting in the inability to use up the liquefied gas in the bottle

It can be seen that there are still defects in the use of this bottle valve, and it is difficult to ensure the smooth flow of the gas path when inflating and using gas

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