JPS6132573Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a pressure regulating device for cooking utensils used in general households.

Conventional configuration and its problems Conventionally, in this type of pressure regulator, the first
As shown in the figure, a pressure regulating device 2 is provided on a lid 1 of the cooking utensil, the lid 1 is formed by an upper plate 3 and a middle plate 4, and the pressure regulating device 2 is
A valve seat 6 is fixed to a steam port 5 provided in the
A case 7 is fixed to the upper plate 3, and the case 7 and the middle plate 4 are pressed against the outer periphery of the steam port 5 via a valve seat 6 to form a steam flow path and to seal the steam port 5. The pressure regulating valve 8 was supported in a slidable manner by the case 7.

In the above configuration, when steam is generated during cooking and the internal pressure of the cooking device increases, the pressure regulating valve 8 rises, the steam port 5 is opened, and the steam is discharged. and,
When the internal pressure becomes low, the pressure regulating valve 8 lowers and the steam port 5
is sealed and the internal pressure begins to rise again. By repeating this operation, the internal pressure was kept constant.

However, with this configuration, when assembling the pressure regulating device, the pressure regulating valve 8 must first be placed into the case 7, and then the valve seat 6 must be assembled into the steam port 5 of the intermediate plate 4. Since the pressure regulating valve 8 gets contaminated with contents during cooking, it is necessary to wash it each time. However, as mentioned above, the pressure regulating valve 8
To wash the water, the pressure regulator had to be disassembled and reassembled, which was extremely difficult for ordinary households.

Purpose of the Invention The present invention provides a pressure regulating device for cooking utensils that solves these conventional problems and improves the ease of manufacturing the pressure regulating valve at home.

Composition of the Invention The pressure regulating device for a cooking utensil of the invention includes a cooking utensil main body, a pot housed in the main body, a lid body that covers the top opening of the main body or the pot, and the internal pressure of the pot is maintained constant. The steam port of the pressure regulating device is sealed with a pressure regulating valve, and the pressure regulating valve is provided with a sealing ring made of an elastic body having a T-shaped cross section. It can be easily washed at home by simply pulling out the valve, and the pressure regulating valve is also easy to install, making it very easy to operate.

DESCRIPTION OF EMBODIMENTS An embodiment in which the present invention is applied to an electronic jar rice cooker will be described with reference to the accompanying drawings.

In FIGS. 2 and 3, 11 is a cylindrical outer frame, 12 is a cylindrical inner frame formed by drawing a thin metal plate, and 13 is a rice cooker equipped at the inner bottom of the inner frame 12. 14 is a pot removably placed on the rice cooking heater 13; 15 is a lid with a heat-insulating structure;
6 is an inner lid that covers the upper opening of the pot 14; 17 is a lid heater installed in the lid body 15; and 18 is an inner frame 12.
A heat insulating heater wrapped around the outer surface of the pot 14, 19
This is a pressure regulating part that keeps the internal pressure constant.

20 is an outer lid, 21 is a middle plate, 22 is a steam port provided in the middle plate 21, and 23 is a case 24 fixed to the outer cover 20 and pressed to the outer periphery of the steam port 22 of the middle plate 21. supported in a slidable manner,
A pressure regulating valve is provided on the side with a steam outlet 24a and a groove 24b for holding a sealing ring, which will be described later.
Reference numeral 25 denotes a ring-shaped sealing ring made of an elastic body with a T-shaped cross section and fitted into the outer surface of the pressure regulating valve 24, and has a protrusion 25a and a flange 25b.
26 is a rice cooking switch that starts the rice cooking operation, 27
is a magnetic thermostat that detects the temperature at the bottom of the pot 14 and completes the rice cooking operation.

To explain the operation in the above configuration, when the rice cooking start switch 26 is operated, the rice cooking heater 13 is energized and starts generating heat. The rice placed in the pot 14 is heated by the rice cooking heater 13 and cooking is started. As rice cooking progresses and the temperature inside the pot 14 becomes high, steam is generated and the internal pressure increases.

When the pressure inside the pot 14 reaches the set pressure, the pressure regulating valve 24 rises, discharging the steam inside the pot 14, and lowering the pressure inside the pot 14. At this time, the pressure regulating valve 24
falls and seals the steam port 22, so that the pressure inside the pot 14 becomes high again. By repeating this operation,
The pressure inside the pot 14 is kept constant. As the rice cooking progresses and the amount of steam generated decreases and the temperature at the bottom of the pot 14 rises, the magnetic thermostat 27 detects this temperature, stops the power supply to the rice cooking heater 13, and completes the rice cooking.

During rice cooking, a large amount of oneba adheres to the pressure regulating valve 24, so after rice cooking, the pressure regulating valve 24
You need to take it out and wash it. Therefore, the user must pull out the pressure regulating valve 24, clean it, and then reinsert it. At this time, the pressure regulating valve 24 is provided with a sealing ring 25 made of an elastic body having a T-shaped cross section, and when the pressure regulating valve 24 is pulled, only the T-shaped protrusion 25a of the sealing ring 25 is bent. It comes off easily with little force. Further, the T-shaped flange portion 25b of the sealing ring 25 fits into the groove 24b of the pressure regulating valve 24 and is in close contact with the groove 24b. And, without this flange portion 25b, the pressure regulating valve 24
When the sealing ring 25 is pulled out, a large force is locally applied to the sealing ring 25, which not only increases the possibility of it coming off the pressure regulating valve 24, but also increases the force when pulling it out.

On the other hand, when inserting the pressure regulating valve 24, when the pressure regulating valve 24 is pushed, the protrusion 25 of the sealing ring 25
When a deforms downward and is further pressed, the protrusion 25
a is instantly reversed, and the insertion is completed. Therefore, the pressure regulating valve 24 does not stop during insertion, and the insertion can be easily and reliably completed.

As described above, according to the embodiment, the pressure regulating valve 25 can be easily and reliably attached to and removed from the steam port 22, so there is no need to disassemble the pressure regulating device during cleaning.

Effects of the Invention As is clear from the above embodiments, the pressure regulating device of the present invention is particularly advantageous in that by providing the pressure regulating valve with a sealing ring made of an elastic body having a T-shaped cross section, the pressure regulating valve can be easily connected to the steam port. Since it can be installed reliably, the pressure regulating device can be easily cleaned in a general household, and the operability of the cooking utensil becomes very good.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional pressure regulating device for cooking utensils, Fig. 2 is a partial sectional view of a cooking utensil using a pressure regulating device according to an embodiment of the present invention, and Fig. 3 is an enlarged view of the same pressure regulating device. FIG. 22... Steam port, 24... Pressure regulating valve, 25...
...Sealing ring, 25a... Protrusion.

Claims (1)

[Scope of utility model registration request] A pressure regulating valve slidably inserted into a steam port of a cooking utensil, and a closure having a substantially T-shaped cross section and having a protrusion larger in diameter than the steam port, which is made of an elastic body formed on the side surface of the pressure regulating valve. A pressure regulator for cookware with a ring.