Anti-explosion bottle cap of thermos bottle

A thermos and bottle cap technology, applied in the directions of bottle/container cap, bottle filling, sealing plug, etc., can solve the problem of air pressure rise, and achieve the effect of reducing air pressure difference, simple structure, and not easy to damage

Inactive Publication Date: 2008-08-20
CHENGDU YUZHONGMEI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a thermos bottle explosion-proof cap with a simple structure, which solve

Method used

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  • Anti-explosion bottle cap of thermos bottle

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Embodiment Construction

[0010] The thermos explosion-proof bottle cap that the present invention provides except bottle cap 1, also has vent hole 2 and decompression valve, and wherein, vent hole 2 is positioned at bottle cap 1, and runs through bottle cap 1 up and down; 5. Return spring 3, air outlet 4, and air inlet 6 are composed; piston 5 is located in vent hole 2; there are two return springs 3, one end is fixed on the inner wall of vent hole 2, and the other end is connected to the top and bottom of piston 5 respectively. The lower end; the air outlet hole 4 and the air inlet hole 6 are located on both sides of the air hole 2 in the bottle cap 1 and communicate with the wall of the air hole 2 . When the present invention is used, when the air pressure in the thermos bottle rises, the pressure difference pushes the piston 5 to rise, and the air outlet 4 penetrates and exhausts, so that the air pressure difference in the thermos bottle decreases; when the air pressure in the thermos bottle decreas...

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Abstract

The invention discloses an explosion-proof bottle cap for vacuum bottle, comprising a bottle cap, an air vent and a reducing valve, wherein, the air vent is arranged in the bottle cap and goes through the bottle cap. The reducing valve comprises a piston, two reset springs, an air gate and an air inlet hole. The piston is arranged in the air vent. One end of the reset spring is fixed on the inner wall of the air vent and the other end is connected with the upper end and the lower end of the piston. The air gate and the air inlet hole are arranged on the two sides of the air vent in the bottle cap, which are communicated with the hole wall of the air vent. The invention is simple in structure and the pressure difference can drive the piston to move whether the air pressure in the vacuum bottle increases or reduces, so the air gate and the air inlet hole are communicated with each other to exhaust or enter the air and the pressure difference in the vacuum bottle reduces in order to prevent explosion. The invention is suitable for all the vacuum bottle.

Description

technical field [0001] The invention relates to an explosion-proof bottle cap, in particular to an explosion-proof bottle cap used on a thermos bottle. Background technique [0002] Thermos bottle is common articles for use in people's daily work and life. When some hot water is stored, the air in the thermos will expand due to heat, causing the air pressure to rise; when the hot water is poured out, the air in the thermos will slowly cool down and shrink, causing the air pressure to decrease. The air pressure in the thermos bottle, whether it rises or decreases, will cause the thermos bottle to burst. [0003] The patent of "a new type of thermal insulation thermos bottle stopper" disclosed by Chinese patent CN2081696 (application number: 91200758.3) is composed of a loam cake, a spherical valve, a shell and a sealing rubber ring; When the plug is removed, it is not easy to jump off the plug and explode the thermos bottle, and the plug is not easy to stick to dirt, corrod...

Claims

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Application Information

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IPC IPC(8): A47J41/02B65D39/00B65D51/16
Inventor 曹宇
Owner CHENGDU YUZHONGMEI SCI & TECH CO LTD
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