Multichannel bidirectional air-valve for charging or releasing air to multiple independence air bags

Abstract

The invention discloses a multichannel two-way air valve used for gas charging or discharging for a plurality of independent gasbags, comprising a hand-operated knob, an upper cap, a sleeve with moving seal rubber lamination, a seal rubber lamination, a base and a clamping bolt, wherein the clamping structures of hand-operated knob and upper cap fix the hand-operated knob on the upper cap to rotate only clockwise or counterclockwise but not move up and down, the sleeve with moving seal rubber lamination and the seal rubber lamination are connected to be an integration by adhesion or welding, when the hand-operated knob rotates, the thread on the depressed structure in the middle of hand-operated knob can drive the sleeve with moving seal rubber lamination to move up and down with the seal rubber lamination to make the seal rubber lamination emerged or cover the inner gas ports of the air cocks connected with each gasbag, the only exit of the seal rubber lamination is a tubular structure arranged in the middle and connected with the inflator air cock. The invention has better air impermeability, practicability and easy operation.

Description

technical field [0001] The invention relates to an air valve, in particular to a multi-channel two-way air valve for inflating and deflated multiple independent air bags. Background technique [0002] The inflation device with multiple independent airbags needs a special multi-channel inflation valve to ensure that the remaining airbags will not leak when one or several airbags are damaged. There will be a phenomenon that some airbags are not fully inflated while other airbags are inflated. Since then, the design of the air valve has become the key. In the patent application number "03127913.9" and the invention patent application titled "Special Air Valve for Independent Airway Type Inflatable Cushion", an air valve is provided, but in this design, the outer air nozzle connected to the air pump is opened at The side is inconvenient to use and unsightly; the rubber pad can seal the inner air port under the action of external force, but due to the lack of pullback structure...

AI Technical Summary

Problems solved by technology

In the patent application number "03127913.9" and the invention patent application titled "Special Air Valve for Independent Airway Type Inflatable Cushion", an air valve is provided, but in this design, the outer air nozzle connected to the air pump is opened at The side is inconvenient to use and unsightly; the rubber pad can seal the inner air port under the action of external force, but due to the lack of pullback structure, the inner air port near the outer edge is basically blocked by the rubber pad, so the inflation is slow or even impossible; The rubber pad is built into the cavity of the air valve and is movable, which causes the air to leak out along the edge of the rubber pad and the gap between the screw and the cover plate, and the airtightness is poor; the knob switch is designed as Finger-twisting type, not easy to apply force and thus lacks practicality

The function of blocking the air ports in this design to block the flow of air between different airbags is obvious, but it ignores that the main function of the air valve is to ensure inflation and deflation

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