JPS6130582Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pressure cooker, and more particularly to a pressure cooker that allows steam inside the pressure cooker to be removed safely and efficiently.

In a conventional pressure cooker, when cooking is finished and the lid is opened, the pressure inside the pressure cooker is lowered by forcibly removing the steam inside the pressure cooker, or the pressure inside the pressure cooker is lowered by forcibly removing the steam inside the pressure cooker. The pressure cooker is opened after being left until the pressure naturally drops. Therefore, if the lid is to be opened in a hurry, the steam inside the pressure cooker must be forcibly removed to lower the pressure. For this reason, especially when the pressure inside the pressure cooker is high, there is a sense of fear due to the spouting of steam due to the way the steam is removed from the pressure cooker, and there is a fear of burns due to the boiling liquid inside the pressure cooker spewing out. There have been drawbacks such as concerns about the food being cooked collapsing due to re-boiling in the pressure cooker and concerns about accidentally operating the steam vent during cooking.

The present invention relates to a pressure cooker that eliminates the above-mentioned drawbacks.

An embodiment of the pressure cooker of the present invention will be described below with reference to the drawings.

In the pressure cooker of the present invention, a steam vent passage 3 having an inverted L-shaped cross section is provided on the side of the steam vent valve body 1 located inside the pressure cooker 2, and a steam vent passage 3 having an inverted L-shaped cross section is provided on the side of the steam vent valve body 1 located outside the pressure cooker 4. There is an operation valve 5 on the side that also serves as a steam vent.
The steam valve 12 is provided with through holes 9, 10, 11 facing the outlet 8 of the steam vent passage 3 of the steam vent valve main body 1 in stages. A steam vent passage 14 communicating with the through holes 9, 10, and 11 of the steam valve 12 is provided, and a valve body 16 is provided that closes the inlet 15 of the steam vent passage 3 of the steam vent valve body 1. The steam valve spring 1 is arranged so that the inlet 15 of the steam vent passage 3 of the steam vent valve main body 1 is always closed by the valve body 16 of the steam vent valve body 1.
At 7, the steam valve 12 is energized and the steam valve 1 is energized.
The steam valve 12 is attached to the steam valve main body 1 so that the through holes 9, 10, and 11 of the steam vent valve body 1 face the outlet 8 of the steam vent passage 3 of the steam vent valve main body 1 in stages when the steam valve 12 is operated. One end of the operating valve spring 18 is brought into contact with the steam valve 12, the operating valve 5 is brought into contact with the other end of the operating valve spring 18, and the operating portion 6 of the operating valve 5 is connected to the steam vent valve body 1. The steam vent valve 19 is formed by inserting the steam vent valve 5 into the insertion hole 7 of the pressure cooker so as to be operable from the outside using the operating portion 6, and the steam vent valve 19 is placed in a predetermined position on the lid 20 of the pressure cooker. It is arranged and configured.

In addition, in the above configuration, the through hole 9 of the steam valve 12,
The sizes (diameters) d1, d2, and d3 of 10 and 11 are set so that d1<d2<d3 as they move away from the valve body 16, as shown in FIG. The spring pressure of the steam valve spring 18 is set higher than that of the steam valve spring 17, and when the pressure inside the pressure cooker 2 is high, as shown in FIG. As the through hole 9 of the steam valve 12 faces each other and the pressure in the pressure cooker 2 decreases, the through hole of the steam valve 12 is opened to the outlet 8 of the steam vent passage 3 of the steam vent valve main body 1 as shown in FIG. The spring pressure is set so that the steam valve 12 can move so that the holes 11 face each other stepwise, and the steam valve spring 17 and the operating valve spring 18 are formed of compression springs.

In the pressure cooker constructed as described above, the operating portion 6 of the operating valve 5 of the steam vent valve 19 is arranged as shown by the arrow a in FIG.
When the pressure inside the pressure cooker 2 is high, the steam valve 12 is pressed by the high pressure b inside the pressure cooker 2, as shown in FIG. The operation valve spring 18 acts only to a small extent, and the steam valve 12 moves only a little, and the inlet 15 of the steam vent passage 3 of the steam vent valve body 1, which was closed by the valve body 16 of the steam valve 12, is slightly opened, and the smallest through hole 9 of the steam valve 12 faces the outlet 8 of the steam vent passage 3 of the steam vent valve body 1, and the steam vent valve body 1 is opened slightly.
A steam vent passage is formed as shown by arrow c through the steam vent passage 3 of the steam valve 12, the through hole 9 of the steam valve 12, the steam vent passage 14 of the steam valve 12, and the insertion hole 7 of the steam vent valve main body 1. Steam inside the cooker 2 escapes through the passage. In this case, since the through hole 9 of the steam valve 12 is the smallest, the amount of steam that escapes to the outside is small. As the pressure inside the pressure cooker 2 decreases, the operating valve spring 18 acts strongly on the steam valve 12, and the steam vent passage of the steam vent valve main body 1, which is slightly opened by the valve body 16 of the steam valve 12, increases. The inlet 15 of the steam valve 12 is wide open, and the largest through hole 11 of the steam valve 12 faces the outlet 8 of the steam vent passage 3 of the steam vent valve body 1, and the smallest through hole 9 of the steam vent valve body 1 faces the outlet 8 of the steam vent passage 3 of the steam vent valve body 1. The steam vent passage 3 of the steam vent valve main body 1, the largest through hole 11 of the steam valve 12 (the passage indicated by the arrow d), the smallest through hole 9 of the steam valve 12 (the passage indicated by the arrow e),
A steam vent passage is formed as shown by arrows d, e, and f through the steam vent passage 14 of the steam valve 12 and the insertion hole 7 of the steam vent valve main body 1, and the steam in the cooker 2 passes through the steam vent passage. Get out. In this case, the steam valve 12
The largest through hole 11 and the smallest through hole 9 act as passages for steam release, and the amount of steam escaping to the outside becomes larger.

In the above case, the smallest through hole 9 of the steam valve 12 faces the steam venting passage 3 of the steam venting valve body 1, and the largest through hole 11 of the steam valve 12 faces the steam venting passage 3 of the steam venting valve body 1. 3, the steam venting effect also occurs when the through hole 10 of the steam valve 12 faces the steam vent passage 3 of the steam vent valve main body 1, and the amount of steam that escapes to the outside in this case is The amount of steam that escapes to the outside when the smallest through hole 9 of 12 faces the steam vent passage 3 of the steam vent valve body 1 and the largest through hole 1 of the steam valve 12
1 is between the amount of steam that escapes to the outside when facing the steam vent passage 3 of the steam vent valve main body 1.

As described above, in the pressure cooker of the present invention, the amount of steam vented to the outside is increased in stages as the pressure in the pressure cooker 2 decreases.

Since the pressure cooker of the present invention has the above-mentioned configuration, there is no need to worry about the spouting of steam due to the way the steam is released when opening the lid in a hurry, or the risk of burns due to the boiling liquid inside the pressure cooker spewing out. , it is possible to reliably prevent disadvantages such as cooking food collapsing due to re-boiling in the pressure cooker, causing concerns about accidentally operating the steam vent during cooking, and the steam inside the pressure cooker can be safely removed. It can be removed step by step and efficiently.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the main parts showing an embodiment of the pressure cooker of the present invention, FIG. 2 is a sectional view of the main parts showing the operating state when the pressure inside the pressure cooker of FIG. 1 is high,
FIG. 3 is a cross-sectional configuration diagram of main parts showing an operating state when the pressure inside the pressure cooker of FIG. 1 drops. In the drawings, 1 indicates the steam release valve body, 2 indicates the inside of the pressure cooker, and 12 indicates the steam valve.

Claims (1)

[Scope of utility model registration request] A steam valve is installed in the steam release valve body using a spring so that it can move according to the pressure drop inside the pressure cooker.
A pressure cooker characterized in that a steam passage is formed between the steam vent valve body and the steam valve so that the amount of steam vented increases stepwise as the steam valve moves.