KR101380403B1 - Jar type's pressure kettle - Google Patents

Abstract

The present invention relates to a rice cooker in which a pot is formed in a jar shape using soil, and is sealed between the main body of the pot and a lid so that pressure is formed in the inner space when rice is cooked and water is cooked in the inner space. It relates to a jar pressure cooker to cook so that it flows and sticks.
In the jar pressure cooker of the present invention is a pot pressure cooker made by baking soil, the lid 20 is inserted into the inlet of the pot body 10 to seal between the inlet of the pot body 10 and the lid 20. The packing 21 is installed in the downward projection 26 of the, the inner ring of the packing 21 is installed in an annular expansion and the thermal expansion during heating to compress the inner ring of the inlet of the cooker body (10) (21a) In addition, an air passage 22 formed on the lid 20 in the up and down direction, and installed on the upper portion of the air passage 22, is composed of a steam discharge valve 30 that is opened when the pressure of the inner space is above a certain level.

Description

Jar Pressure Rice Cooker {JAR TYPE'S PRESSURE KETTLE}

The present invention relates to a rice cooker formed in a pot shape using a soil pot, and more specifically, to seal the space between the pot body and the lid so that the pressure is formed in the inner space when rice and water are put into the inner space. It relates to a jar pressure cooker to cook so that the rice is shiny and sticky.

In order to make the rice delicious and easy to cook in large quantities, the present inventor has developed a double jar cauldron made by baking in a jar shape using soil and registered with Patent No. 659095.

The double jar cauldron is made by baking soil, and consists of a pot body and a lid formed in a jar shape, the bottom of the pot body is thicker than the side wall and the inner wall of the upper body to form an inner wall to keep warm between the outer wall Forming a space.

The bottom of the pot body is thicker than other parts so that hot blowing is alleviated to some extent. And the thickness of the wall becomes thinner as it goes up so that even heat is transmitted to the inner space of the pot body.

In the conventional double jar cauldron, since a heat insulating space is formed between the inner wall and the outer wall of the upper portion of the pot body, the entire cooker is heated evenly, and thus the rice taste is good evenly. In addition, the inner space of the cooker is heated and warmed evenly as a whole, so even if you are not an experienced person, you can easily cook rice simply by adjusting the quantity.

However, since the conventional double jar cauldron is a conventional cooker in which the inner space in which the rice is built is not subjected to pressure, the polished and sticky rice could not be cooked.

As is well known, the charred rice called "seal rice" is cooked by a pressure cooker and tastes good. A conventional pressure cooker uses a metal lid fixing mechanism and a pressure control valve in a metal container, and cannot produce a natural atmosphere. .

The present invention has been made in view of the prior art as described above, is formed using only the soil to be softly heated during heating and to cool slowly during cooling and to create a pressure in the inner space to cook rice shine and good rice taste Its purpose is to provide a jar pressure cooker that can be filled with rice.

The jar pressure cooker of the present invention for achieving the above object is provided in a downward pressure portion of the lid is inserted into the inlet of the pot body in order to seal between the inlet and the lid of the pot body in the pot pressure cooker made by baking soil. The packing, which is installed in the annular inside of the packing and the thermal expansion when heated to compress the inner ring of the inlet of the cooker main body, the air passage formed in the vertical direction on the lid, and installed as an upper portion of the air passage It is characterized by consisting of a safety valve that opens when the pressure in the space is above a certain level.

Jar pressure cooker of the present invention is characterized in that the handle is formed with a concave surface formed in the center of the upper surface of the lid, characterized in that the safety valve is installed on the concave surface of the handle.

The pot pressure cooker of the present invention is composed of an upper wall and an inner wall of the upper pot body, the inlet of the cooker is characterized in that the inlet of the inner wall.

Since the present invention is made in a jar shape using only soil, it gradually heats up and cools slowly, and a pressure higher than atmospheric pressure is formed in the inner space while the rice is being cooked. .

1 is an exploded perspective view of a double jar pressure cooker of the present invention,
Figure 2 is a combined cross-sectional view of the double jar pressure cooker of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

Jar pressure rice cooker of the present invention is formed in a jar shape by baking the soil by a conventional method, it is composed of the pot body 10, the lid 20, and the steam discharge valve (30).

1 and 2, the upper portion of the cooker body 10 is formed of a double outer wall 11 and the inner wall 12, the heat insulating space 13 is formed therebetween, the cooker body ( A supporting portion 14 is formed in the middle portion of the outer surface of 1). In addition, the lid 20 is packed 21 to the downward projection 26 of the lid 20 is inserted into the inlet of the cooker body 10 to seal between the inlet of the cooker body 10 and the lid 20. Is installed. The packing 21 is made of a rubber material having excellent elasticity against heat. For example, diaphragm rubber can be used.

As shown in FIG. 1, a recess 25 is formed in a side surface of the downward protrusion 26 of the lid 20, and an inward protrusion 21b inserted into the recess 25 is formed in the packing 21. Formed. The reason for this is to prevent the packing 21 from being easily separated by being engaged with each other. The packing 21 also has an L-shaped cross section to seal the gap between the inner surface of the cooker body 10 and the upper surface of the inlet.

An annular expansion ring (21a) is provided inside the packing (21) is inserted into the lower portion of the vertical portion of the packing (21) and the expansion ring (21a) is thermal expansion when heated to the cooker body (10) Is pressed against the inner surface of the inlet. The expansion ring 21a is made of a metal having the property of receiving heat generated when boiling water and expanding it and returning to its original form when the heat cools. The expansion ring 21a inserts when forming the packing 21.

The expansion ring 21a selects a metal that expands at 100 ° C. at which steam begins to generate.

The air passage 22 is formed in the lid 20 in the vertical direction. The upper part of the air passage 22 is provided with a steam discharge valve 30 which is opened when the pressure of the internal space is higher than a certain level. When the lid 20 is manufactured for installation of the steam discharge valve 30, the mounting hole 31 is inserted into the lid 20. The steam discharge valve 30 is constituted by a pressure weight 32 in which the pressure in the internal space is lifted by a predetermined level or more. It is preferable to make the outside of the pressure weight 32 by baking with soil in combination with the lid (20).

The steam discharge valve 30 also functions as a safety valve, and is opened due to the risk of explosion when the pressure in the inner space of the cooker body 10 is greater than the safety pressure. It is composed together. Such a steam discharge valve and a safety valve may be used for a conventional pressure cooker, and may also use a patent registration No. 0473770 (name: pressure cooker integrated valve).

A handle 23 having a concave surface 24 is formed at the center of the upper surface of the lid 20. The steam discharge valve 30 is provided on the concave surface 24 of the handle 23. Therefore, water vapor flowing out from the steam discharge valve 30 does not flow down and remains on the concave surface 24 of the handle 23, so that the aesthetic tube 20 is not deteriorated.

The upper portion of the cooker body 10 is composed of an outer wall 11 and the inner wall 12, the packing 21 may be configured between the inlet and the lid 12 of the outer wall 11, As may be configured between the inlet of the inner wall 12 and the lid 12.

Jar pressure cooker of the present invention configured as described above acts as follows.

Put the required rice and water in the inner space of the cooker body 10, cover the lid 20 and heat the fire from the bottom. The bottom of the pot body 10 is relatively thick, so the hot heat of the fire is transmitted after being relaxed so the rice does not stick. The heat is transmitted to the outer wall 11 and the inner wall 12 of the upper portion, and the heat insulating space 13 is formed therebetween, so that the entire inner space of the cooker body 10 is warmed evenly and the rice tastes good evenly. .

When the water in the inner space begins to boil and the pressure in the inner space begins to increase, the lid 20 is normally opened or steam escapes through the gap between the lid 20 and the pot body 10. Since the packing 21 is installed between the lid 20 and the pot body 10, the pressure of the inner space is increased without the steam coming out.

Further, when further heated, the expansion ring 21a inside the packing 21 expands to further compress the lid 20 and the pot body 10 to increase the sealing property. As shown in Figure 1, the position of the expansion ring (21a) is installed directly below the inlet vertical surface of the cooker body 10, the expansion of the expansion ring (21a) prevents the phenomenon that the lid 20 to rise by the vapor pressure Done.

As such, the gap between the pot body 10 and the lid 20 is sealed, so that the pressure in the inner space increases and the rice is cooked in an atmosphere under pressure. When the pressure in the inner space is higher than a certain level, the pressure weight 32 of the steam discharge valve 30 is lifted and steam is discharged. The pressure of the inner space is preferably 1.2 atm so that the water boils at 120 ° C. so that it can be charged. The pressure weight 32 can be opened if the pressure in the internal space is 1.3 atm.

When the pressure in the inner space of the cooker body 10 increases above a safety pressure (for example, 2 atmospheres), the pressure decreases while the safety valve configured inside the steam discharge valve 30 is opened.

After the heating process, there is a moxibustion process in a natural state. During the moxibustion, the main body 10 is cooled, so the swelling ring 21a is also cooled to return to its original size, thereby preventing the opening of the lid 20. In addition, the pressure in the interior space naturally falls. However, when opening the lid 20 for safety, it is preferable to lift the pressure weight 32 to remove steam therein.

Since the steam coming out of the steam discharge valve 30 falls on the concave surface 24 of the handle 23, even if it is changed to moisture can be kept clean without flowing sideways.

As described above, although the pressure cooker of the present invention is made by baking soil like a jar, rice is cooked in a high pressure state as compared with the prior art, so that the rice may be shiny and sticky.

While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

10: cooker body 11: outer wall
12: inner wall 13: thermal insulation space
14: support
20: lid 21: packing
21a: expansion ring 21b: inward protrusion
22: air passage 23: handle
24: concave surface 25: concave groove
26: downward projection
30: safety valve 31: mounting hole
32: pressure weight

Claims (3)

In jar pressure rice cooker which was made by baking soil,
Packing 21 is installed in the downward projection 26 of the lid 20 is inserted into the inlet of the cooker main body 10 to seal between the inlet and the lid 20 of the cooker body 10,
An expansion ring (21a) is provided in an annular shape inside the packing (21) and thermally expands when heated to compress the inner surface of the inlet of the cooker body (10),
An air passage 22 formed in the lid 20 in a vertical direction, and
Jar pressure rice cooker, characterized in that the steam outlet valve 30 is installed on the upper portion of the air passage 22 is opened when the pressure of the internal space is more than a predetermined. The method of claim 1, wherein a handle 23 having a concave surface 24 is formed in the center of the upper surface of the lid 20, the vapor discharge valve 30 on the concave surface 24 of the handle 23 Jar pressure cooker, characterized in that installed. The upper portion of the cooker body 10 is composed of an outer wall 11 and the inner wall 12, the inlet of the cooker body 10 is characterized in that the inlet of the inner wall (12). Jar pressure cooker.

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