Pressure adjustment mechanism of pressure cooker

Abstract

The invention discloses a pressure-regulation device for pressure cooker, comprising: air-out axis support installed in pan cover, air-out axis on air-out axis support and air-out pivoted housing packing air on air-out axis and rotating and sliding on air-out axis, the pivoted housing is connected with air-out axis in sealed movable fit, and is suspended on air-out axis under action of bilateral edge leakage air current, which can not only pack air effectively, but also makes device be sensitive to pressure-regulation signal, the decompression air can be discharged out through air-out axis support and air-out axis. The invention is characterized by immediate decompression, high efficiency of pressure regulation and wide application.

Description

technical field [0001] The invention relates to a pressure regulating mechanism for a pressure cooker. technical background [0002] In the prior art, the common pressure regulating mechanism for pressure cookers mostly adopts a single pressure-sensitive hammer type pressure regulating mechanism. Its pressure regulating effect is mainly achieved through the pressure relief action of the vent hole of the pressure-sensitive hammer, so that the pressure in the pot will not exceed the preset pressure threshold, so as to realize the pressure regulating effect of the pressure cooker. However, the vent holes are generally very small, and the diameter generally does not exceed 3mm. During the actual exhaust and pressure relief process, the miscellaneous debris in the pot is easily discharged with the air flow, and the vent holes are easily blocked, which makes the pressure in the pot too high. The gas cannot be well leaked out, and the pressure regulation effect is poor or invalid,...

AI Technical Summary

Problems solved by technology

However, the vent holes are generally very small, and the diameter generally does not exceed 3mm. During the actual exhaust and pressure relief process, the miscellaneous debris in the pot is easily discharged with the air flow, and the vent holes are easily blocked, which makes the pressure in the pot too high. The gas cannot be well leaked out, and the pressure regulation effect is poor or invalid, which may lead to the explosion of the pressure cooker, and there are certain safety hazards in use.

Moreover, the pressure detection action and pressure adjustment action of the mechanism are both completed by the pressure sensing hammer itself. When the pressure sensing hammer releases pressure, it must be impacted by the pressure relief air flow, and the pressure adjustment action will definitely interfere with the pressure detection effect and make the pressure detection inaccurate. , which in turn leads to different degrees of hysteresis in the actual pressure regulation action, and the overall pressure control effect of the pressure cooker cannot be accurately realized.

Therefore, a single pressure-sensitive hammer-type pressure regulating mechanism cannot achieve timely and accurate pressure adjustment of the pressure cooker in a real sense.

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