JPH0221684Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a gas stove device for cooking.

Conventionally, this type of device includes a cover that closes the gap between the opening and the burner on the outer periphery of the gas burner that protrudes upward through an opening formed in the top plate on the upper surface of the stove body. A type of burner is known in which the inside of the opening is protected from intrusion of boiling liquid, but in such a burner, it is difficult for the secondary air guided through the opening to reach the flame opening of the burner, and the burner is exhausted together with the exhaust gas. This is accompanied by the disadvantage that it is likely to be discharged to the outside and cause combustion defects to some extent. Conventionally, in order to eliminate this inconvenience, a partition plate was provided on the trivet on the outer periphery of the top plate to separate an exhaust passage above it and a secondary air passage below it, as seen in Utility Model Application No. 56-61810. As shown in Japanese Utility Model Application Publication No. 56-151803, a separation plate with a size that covers almost the entire surface of the top plate on the top of the stove body is provided, and a separation plate is provided between the top plate and the separation position. It is known that a secondary air passage is formed in the separator plate and a trivet is provided above the separator plate.

However, in the former case, the structure of the trivet is complicated as a whole due to the partition plate, and the processing is labor-intensive and relatively expensive, and the whole trivet is also relatively large and heavy. Since the trivet on which the heavy object is to be placed must be provided on the separation plate, it must be made to be sturdy, and the overall size and weight are unavoidable.

The purpose of the present invention is to obtain an apparatus free from such inconveniences, and the gas burner 4 is made to protrude upward through the opening 3 formed in the top plate 2 on the upper surface of the stove body 1. A cover 6 that is supported by the gas burner 4 and covers the upper part of the gap 5 is provided between the outer periphery of the gas burner 4 and the inner periphery of the opening 3 with a gap l ₁ between the lower surface and the top plate 2. In this case, a rectifier ring 8 having a slightly larger diameter than the cover 6 is provided above the cover 6 with a gap 7 between the cover 6 and the rectifier ring 8. , a through hole 10 is provided through which the gas burner 4 is inserted with a distance l ₂ between the gas burner 4 and its periphery.

The cover 6 is prepared separately from the top plate 2, and is detachably attached to the burner 4 from above in the space 5, and the rectifying ring 8 is A leg piece 9 extending downward is provided so that the cover body 6 is mounted and supported on the leg piece 9. The rectifying ring 8 partitions the space 7 on the lower side into a secondary air passage and the upper side thereof as an exhaust passage side, and directs the air flowing through the space ₁ from the space 5 through the space 7. It acts to guide the burner 4 as secondary air, and since the straightening ring 8 has a larger diameter than the cover 6, the air flowing through the interval _l1 is easily guided to the burner port side.
According to the inventor's experiments, the combustion exhaust of the burner 4
CO/CO ₂ value is 0.009 without ring 8
On the other hand, in the case of the present device equipped with the ring 8,
It was confirmed that the value decreased significantly to 0.0055. For example, the width of the space _l2 is about 5 to 6 mm,
Furthermore, in this case, the height of the above-mentioned interval 7 is generally 5 mm or more, for example. In the drawing, 11 indicates the trivet on its outer periphery.

In this way, according to the present invention, a rectifying ring 8 having a slightly larger diameter than the cover 6 is provided above the cover 6 that covers the upper part of the gap 5, with a gap 7 between it and the cover 6. , the gas burner 4 is placed in the center of the rectifying ring 8.
Since a through hole 10 is provided through the hole 10 with a distance l ₂ between it and its surroundings, the air supplied from the lower surface of the top plate 2 through the distance l ₁ can be effectively channeled through the rectifying ring 8. can be supplied to gas burner 4 as secondary air,
Moreover, the rectifying ring 8 can be provided independently of the trivet 11. As a result, the rectifying ring 8 is not significantly different from the cover 6, is relatively small and lightweight, can be obtained easily and inexpensively, and has the effect of eliminating the disadvantages of the conventional ones.

[Brief explanation of the drawing]

FIG. 1 is a cutaway front view of one example of the device of the present invention. 1... Stove body, 2... Top plate, 3... Opening,
4... Gas burner, 5... Between, 6... Cover, 7
... Interval, 8 ... Rectifier ring, 10 ... Through hole,
l ₁ , l ₂ ... Interval.

Claims (1)

[Scope of utility model registration request] A gas burner 4 is projected upward through an opening 3 formed in the top plate 2 on the upper surface of the stove main body 1, and is supported by the gas burner 4 so that the outer periphery of the gas burner 4 and the inner periphery of the opening 3 are connected. In between = The cover 6 that covers the upper part of the space 5 is spaced l ₁ between its bottom surface and the top plate 2.
A rectifying ring 8 having a slightly larger diameter than the covering 6 is provided above the covering 6 with a gap 7 between the covering 6 and the rectifying ring 8. ring 8
A gas stove device comprising a through hole 10 provided in the center of the gas burner 4 through which the gas burner 4 is inserted with a gap l ₂ between the gas burner 4 and the periphery thereof.