JPH0531382Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a bonfire device using gas fuel.

[Prior art and its problems] In this type of bonfire device, which is mainly installed outdoors, the gas nozzle of the fuel gas combustion mechanism is directly exposed to the atmosphere, or is covered with a wire mesh or the like. It's nothing more than that. Therefore, it had the disadvantage that it was vulnerable to even the slightest wind and rain, and the fire would go out.

The object of the present invention is to provide a bonfire device that is resistant to wind and rain, does not go out, and is installed mainly outdoors.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a flame-holding chamber on the outer periphery of the gas chamber, which is partitioned by a flame-holding cover with an open bottom surface, in a bonfire device. The gas chamber and the flame stabilizing chamber are communicated through a gas jet hole, a slit is formed on the side surface of the flame stabilizing cover, and a ventilation hole for supplying air to the flame stabilizing chamber is formed in a support plate fixed to the upper part of the support. The gist is that a shielding plate is provided around the outer periphery of the flame-holding cover.

[Example] The following description will be made based on the embodiments shown in the drawings.

Referring to FIG. 1, the gas supply pipe 2 in the support 1 is projected above the upper end of the support 1 to form a gas chamber A in the space between the gas chamber case 3 and the gas supply pipe 2. A small-diameter gas nozzle 4 at the upper end of the gas chamber 2 is exposed toward the gas chamber A.

The flame-holding cover 5 consisting of the top cover 5a and the side cover 5b and the side surface of the gas chamber case 3 form a donut-shaped flame-holding chamber B with an open bottom. The top cover 5a is fixed together with the top surface of the gas chamber case 3 to the upper end of the gas supply pipe 2 via fixing bolts 6.

The gas chamber A and the flame stabilizing chamber B are communicated through a large number of gas ejection holes 7 provided on the upper side of the gas chamber case 3.

A long slit 8a with a long thin cut and a short slit 8b with a thick short cut are formed in the side cover 5b of the flame holding cover 5.

A plurality of support tubes 1 are positioned so as to surround the column 1 and its outer periphery by a support plate 9 fixed to the column 1.
0 is fixed, a plurality of ventilation holes 11 are provided in the support plate 9, and a truncated cone-shaped shielding plate 12 is attached to the inside of the support tube 10, that is, to the outer periphery of the flame-holding cover 5.

Referring to FIG. 2, 13 is a support base fixed to the lower end of the column 1, 14 is a ring-shaped horizontal frame member fixed to the support tube 10, and 15 is the support tube 10 and the horizontal frame member 14.
It is a decorative member fixed to.

The fuel gas passes through the gas supply pipe 2 in the support column 1, is led to the gas chamber A through the small-diameter gas nozzle 4 at the upper end, and is depressurized. Next, it is ejected into the flame-holding chamber B from the numerous gas ejection holes 7 in the upper part of the gas chamber, mixed with air introduced from the ventilation holes 11 of the support plate 9, and ignited by an ignition source such as a gas lighter (not shown). Ru.

Once ignited, the flame naturally diffuses and mixes due to the air flow rising through the ventilation hole 11 of the support plate 9, passes through the slits 8a, 8b provided in the side plate cover 5b of the flame holding cover 5 and the lower part of the side plate cover 5b, A flame is formed at the upper part of the flame cover 5.

The slits are provided with long slits 8a and short slits 8b alternately, so when the fuel gas is low, the flame flows out from the long slits 8a.
When there is a large amount of fuel gas, flame also flows out from the lower part of the shorter slit 8b and the longer slit 8a.
Since fuel gas and air are always supplied to the flame stabilizing chamber B surrounded by the outer periphery of the gas chamber case 3 and the flame stabilizing cover 5, the ignition flame is protected from wind and rain, and the flame does not go out. That is, not only is it protected against rain, but also against downward or upward winds, the convection of air within the flame holding chamber promotes the diffusion of fuel, which actually works to improve the stability of the ignition flame. Furthermore, against lateral wind, the shielding plate 12 prevents the wind from blowing directly into the flame holding chamber, thereby protecting the ignited flame.

[Effects of the invention] According to the invention, the ignition flame of the gas fuel ignition device can be protected from wind and rain, so it can be used as an all-weather bonfire device.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the gas fuel bonfire device of the present invention. FIG. 2 is also a perspective view. A... Gas chamber, B... Flame holding chamber, 1... Support, 5
...Flame-holding cover, 7...Gas outlet, 8a, 8b
...Slit, 9...Support plate, 11...Vent hole,
12... Shielding plate.

Claims (1)

[Scope of utility model registration request] Flame-holding cover 5 with an open bottom on the outer periphery of gas chamber A
A flame stabilizing chamber B is provided, and the gas chamber A and the flame stabilizing chamber B are communicated with each other through a gas jet hole 7. Slits 8a and 8b are formed on the side surface of the flame stabilizing cover 5, and A gas fuel tank characterized in that a support plate 9 fixed to the upper part is provided with a ventilation hole 11 for supplying air to a flame holding chamber B, and a shielding plate 12 is arranged around the outer periphery of the flame holding cover 5. Bonfire device.