JPS6124188Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a safety device for a pressure cooker that is activated when the pressure inside the cooker body reaches a set pressure or higher.

Traditionally, pressure cookers such as pressure cookers are usually equipped with a pressure regulating valve that keeps the internal pressure constant, as well as a safety device that activates in case the pressure rises abnormally above the set pressure. As shown in FIG. 4, the structure is such that steam, etc. is spouted upward at once by abnormal pressure from the pores 14 of the holder 10 provided in the lid 5, and the high-temperature melting is caused by the operation of the temperature fuse 13. temperature fuse 13 and steam,
It flew off at a considerable speed and was extremely dangerous, causing burns. To ensure safety, some devices have a safety cap that covers the holder 10 from the outside of the main body, but these have disadvantages such as an increase in the number of parts, ease of assembly, and poor appearance. There is also a structure in which the safety cap is not covered and the ejection is received by the lower part of the handle fixed to the lid 5, but this has the disadvantage that there are restrictions on the attachment and structure of the handle.

In view of the above-mentioned conventional drawbacks, the present invention is designed to ensure safety with the holder alone.

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

The structure of the embodiment is as shown in FIGS. 1 to 3, where 1 is a pressure cooker body and 2 is a heating plate, which is mounted inside the pressure cooker body 1 via a protective frame 3. 4 is a cooking container which is detachably placed on the heating plate 2. A lid 5 is provided to airtightly cover the upper opening of the cooking container 4 via a rubber packing 6, and is detachably engaged with the upper edge of the cooking container 4 at its outer periphery. 7 is a pressure regulating valve, which is a weight type and has a lid 5.
It is set in. 8 is a mounting hole provided in the lid 5;
It has a female threaded portion 9. Reference numeral 10 denotes a holder, which includes a male threaded part 11 screwed onto the female threaded part 9, a plurality of vent holes 12 that open toward the outside of the lid 5 for discharging steam, etc., and air holes that open inward of the lid 5 so as to be perpendicular to and communicate with them. 1
4. Reference numeral 13 denotes a temperature fuse, which is embedded in the air hole 14, normally closes it, and melts at a temperature corresponding to the pressure when the pressure inside the cooker reaches a set pressure or higher.

The operation of this embodiment is as follows:
A cooking container 4 containing prepared items to be cooked is placed on a heating plate 2 attached to the bottom, and the cooking container 4
A lid 5 having a pressure regulating valve 7, a holder 10, etc. and sealed with a rubber packing 6 is hermetically fixed to the lid 5, and the heating plate 2 is energized to perform cooking. In this case, the pressure regulating valve 7 serves to keep the pressure inside the sealed cooking container 4 constant, but if the pressure regulating valve 7 does not operate for some reason, the pressure may rise abnormally above the set pressure value. At this time, a safety device consisting of a holder 10 and the like provided on the lid 5 according to the present invention is activated. A plurality of vent holes 12 for steam, etc. drilled from the side of the holder 10 are screwed onto the female thread 9 of the lid 5 using a male thread 11 provided on the holder 10 so as to face the outside of the lid 5. Note that the holding body 10 has the above-mentioned punching hole 12.
The temperature fuse 13 is closed by a temperature fuse 13 buried in a hole 14 which is opened inwardly in the lid 5 and communicates with the lid. This temperature fuse 13 is normally cut off because it blocks communication between the inside and outside of the cooking container 4, but when it reaches the set temperature or higher, it melts due to the temperature and pressure and opens the pores 14 to vent steam, etc. 12, and releases dangerous pressure to the outside of the side.

According to the present invention, the holder is provided with a hole that opens toward the outside of the lid so as to allow a hole to be opened from the side of the holder, and an air hole that communicates with the lid, and the air hole is closed by interposing a temperature fuse. By installing a material on the lid, the temperature fuse operates to release high-temperature melted temperature fuses and high-temperature high-pressure steam to the outside, eliminating the risk of burns and ensuring safety with the holder alone. It is effective,
It has a simple configuration, is not restricted by other component configurations, is inexpensive, and is easy to assemble, and has great practical value.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a pressure cooker equipped with a safety device showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the safety device of the same pressure cooker, and Fig. 3 is a sectional view of the main parts of the same. FIG. 4 is a sectional view of essential parts of a conventional safety device for a pressure cooker. 5... Lid, 10... Holding body, 12... Extraction hole, 1
3... Temperature fuse, 14... Stomata.

Claims (1)

[Scope of utility model registration request] In a safety device for a pressure cooker in which the lid is equipped with a holder that has pores and is closed with a temperature fuse that melts at a temperature corresponding to a pressure higher than the set pressure, the holder 10 is attached to the side of the holder. A pore 14 is provided which communicates with the hole 12 which is drilled further, and the pore 1
4. A safety device for a pressure cooker, characterized in that a lid 5 is provided with a temperature fuse 13 which is closed by intervening a temperature fuse 13.