Pressure-limiting valve with multiple pressure values and pressure pan thereof

A pressure limiting valve and pressure value technology, applied in pressure cookers and other directions, can solve the problems of affecting the use effect and high center of gravity, and achieve the effect of upgrading the grade and improving the cooking quality.

Inactive Publication Date: 2010-06-02
马燕翔
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This structure is very simple, and the operation is just to adjust the head conveniently, but because the center o

Method used

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  • Pressure-limiting valve with multiple pressure values and pressure pan thereof
  • Pressure-limiting valve with multiple pressure values and pressure pan thereof
  • Pressure-limiting valve with multiple pressure values and pressure pan thereof

Examples

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[0021] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0022] Such as figure 1 , figure 1 It is a pressure limiting valve with a circular valve body, and the upper end of the exhaust pipe (1) is a trumpet-shaped exhaust pipe port, which is called a conical port (2) in the present invention. Since the cone port (2) is trumpet-shaped, there is a different caliber at different heights in the cone port (2). When the tapered port (2) is in contact with the head (3), sealing surfaces of different sizes are formed due to the diameter of the head (3). Since the weight of the entire valve body (7) is fixed, therefore, the pressure value of the pressure limiting valve (the pressure value in the present invention refers to the value of the highest air pressure allowed by the pressure limiting valve in the pressure cooker) will be affected by the head ( 3) The sealing area between the tapered port (2) increases and...

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Abstract

The invention relates to a pressure-limiting valve with multiple pressure values and a pressure pan thereof. A manufacturing method of the pressure-limiting valve with multiple pressure values comprises the following steps of: firstly manufacturing an opening of an exhaust pipe into a trumpet-shaped taper opening with different sections at different heights; then installing multiple seal heads which have different sizes and can seal at the different heights of the trumpet-shaped taper opening on valve core wheel capable of rotating relatively to a valve body; and replacing the plug which is sealed the trumpet-shaped taper opening by a method of rotating the valve core wheel to change the pressure values, thus the pressure-limiting valve has multiple different pressure values. Besides, the pressure-limiting valve has relative lower cost due to a simple structure and is very convenient to use and very easy to accept by the masses.

Description

1. Technical field: [0001] The invention relates to a kitchen article, in particular to a pressure limiting valve of a pressure cooker. 2. Background technology: [0002] Different foods require different optimum cooking pressures (temperatures). With the improvement of living standards, people are no longer satisfied with the existing pressure cooker with only one pressure value. a variable pressure value. [0003] Known pressure limiting valves can generally be divided into gravity and elastic force according to the nature of the pressure applied to the exhaust pipe port. To change the air pressure in the pressure cooker, for the elastic pressure limiting valve, it only needs to be simple. It can be conveniently realized by adjusting the screw to increase or decrease the elastic force of the spring. However, because the elastic force of the spring will change due to changes in temperature and long-term use, the air pressure in the pressure cooker will be unstable, and e...

Claims

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Application Information

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IPC IPC(8): A47J27/09A47J27/08
Inventor 马燕翔
Owner 马燕翔
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