An explosion-proof self-locking bottle stopper with positive and negative pressure for releasing steam gas

Abstract

The invention provides an anti-explosion self-locking bottle plug capable of releasing steam air positive pressure and negative pressure and relates to a bottle plug for a thermos bottle. An air 12 is arranged from the middle portion of the lower end surface of an inner column body 14 to the upper portion of the inner column body 14. A handle ring 1 is arranged on the upper portion of a pressure press block 6, the lower end of a spring 5 sleeved on the pressure press block 6 presses against an outward protruding ring 8, the upper end of the spring 5 presses against the lower end surface of a press ring 4, threads of the periphery of the press ring 4 is connected with inner threads of the upper port portion of an expanding column-shaped hole, at least one air drain 13 is communicated with a V-shaped annular concave 10 arranged in the middle portion of the inner column body 14 along the lower portion surface and the lower portion periphery surface of the inner column body 14, an inner ring 7 of a rubber cylinder 16 is sleeved on an annular groove of the inner column body 14, and the rubber cylinder 16 wraps the inner column body 14. The anti-explosion self-locking bottle plug capable of releasing steam air positive pressure and negative pressure has a function of automatically releasing pressure when pressure in a bottle container is too high, consequently, the bottle container can be ensured not to explode.

Description

【Technical field】 [0001] The invention relates to a cork for a thermos bottle, in particular to an explosion-proof self-locking cork with positive and negative pressure for releasing steam gas. 【Background technique】 [0002] As known, thermos bottle is used as a kind of water temperature protection container in many families or office places. When the hot water filled in the bottle liner of the thermos bottle is poured out, a certain space is formed in the bottle liner. The steam expanding in time and space will cause the wooden bottle cork to jump; at this time, the pressure in the bottle liner is greater than atmospheric pressure, so the cork cannot resist the pressure of the hot air in the bottle, causing the cork to jump up and the hot water in the bottle liner to cool down quickly The bottle stopper of the commercially available thermos bottle is a cork material, which is conical with a large upper part and a smaller lower part. The bottle mouth of the thermos bottle ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the background technology, the present invention discloses an explosion-proof self-locking bottle stopper with positive and negative pressure for releasing steam gas. The present invention can form a relatively tight connection with the bottle mouth through the provided annular raised strip, ensuring The present invention will not break away from the mouth of the thermos bottle due to the high pressure inside the bottle liner, and the present invention also has the function of automatic pressure relief when the pressure inside the bottle liner is too high, ensuring that the bottle liner will not burst, especially on vehicles When the pressure inside the bottle liner is unstable, the present invention can better ensure that the bottle liner will not burst

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