JPS6329162B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a gas burner that burns fuel gas.

BACKGROUND ART Gas burners installed in kitchen gas ranges and the like get dirty with cooking oil and the like, and therefore need to be cleaned from time to time. In the prior art, when water for cleaning enters through the flame hole of a gas burner, it stays inside the gas burner, making it difficult to ignite. Therefore, when cleaning the gas burner, care must be taken to prevent water from entering through the flame hole, resulting in poor work efficiency.

In the prior art, for example, as shown in Utility Model Application No. 50-47771, a liquid receiving pipe that can be opened and closed with a plug is attached to a burner body having a passage for supplying a mixed gas of fuel gas and combustion air. It is configured to store the boiled liquid that flows in from the flame hole in the liquid receiving pipe to achieve stable combustion.

In such prior art, since fuel gas and combustion air are supplied to the passage at a positive pressure higher than atmospheric pressure, the fluid receiving pipe must be blocked by the above-mentioned plug during combustion. It won't happen. If you forget to tighten the valve, raw gas will leak out, which is extremely dangerous.

Furthermore, in order to drain the liquid in the juice receiving tube, the stopper must be removed each time the device is cleaned, which is inconvenient, and there is a risk that the stopper may be forgotten or lost.

Furthermore, since liquid such as boiled liquid can only be stored by the capacity of the liquid receiving tube, there is the inconvenience that the stopper must be frequently removed to drain the liquid.

An object of the present invention is to provide a gas burner that facilitates cleaning work such as washing with water, can discharge a large amount of water and boiled liquid during washing, and further improves safety by preventing leakage of raw gas. That's true.

Means for Solving the Problems The present invention provides: (a) A flame hole is formed in the upper part of the burner body 1, and a passage 2 formed in the burner body 1 supplies fuel gas and combustion air to the flame hole. (b) a throat portion 7 is formed near the lower end of the passage 2; The passage 2 is provided with (c1) a nozzle 8 for supplying fuel gas toward the throat portion 7, and (c2) an intake port for sucking combustion air into the passage 2 from near the outer periphery of the nozzle 8. (d) A drainage hole 11 is formed in the lower part of the passage 2 which is further away from the tip of the nozzle 8 on the nozzle 8 side from the throat part 7; (e) A drainage hole 11 is formed in the lower part of this drainage hole 11. This gas burner is characterized in that it is provided with a trap 12 that stores liquid and performs water sealing during combustion, and that a drain pipe 13 is connected to the trap 12.

Embodiment FIG. 1 is a sectional view of an embodiment of the present invention.
A gas range installed in a sink is equipped with a burner body 1 according to the present invention. Burner body 1
A passage 2 is formed in which guides fuel gas and combustion air. The upper end 3 of the burner body 1 faces upward, has a vertical axis, and has a right cylindrical shape. A through hole 5 formed in the top plate 4 of the sink protrudes upward from the upper end portion 3. A short cylindrical portion 6 is formed in the through hole 3 .

The passage 2 of the burner body 1 has a portion that slopes downward from an upper end 3, and a throat portion 7 is formed near the lower end. Fuel gas such as city gas is supplied from the nozzle 8 toward the throat portion 7 . Combustion air is sucked into the passage 2 from near the outer periphery of the nozzle 8 through an intake port 9 . The opening area of the intake port 9 is adjusted by a diaphragm member 10.

The passage 2 is formed so as to be inclined downward as it goes away from the flame hole (as it goes to the right in FIG. 1). In the part of the passage 2 that is farther from the flame hole than the throat part 7 (on the right side in FIG. 1), there is a throat part 7.
A nozzle 8 is provided to supply fuel gas toward. The drainage hole 11 is located from the throat part 7 to the nozzle 8 side (that is, to the right of the throat part 7 in FIG. 1),
It is formed in the lower part of the passage 2 which is farther away than the tip of the nozzle 8 (on the right side in FIG. 1). The trap 12 described below is for sealing water during combustion. A trap 12 is connected to this drain hole 11, and the trap 12 is led through a pipe 13 to a drain channel of the sink. Water that has entered the passage 2 during cleaning, etc., flows through the passage 2 and drains through the drain hole 11.
The water is then discharged from the drain pipe 13 via the trap 12. In the trap 12, liquid such as water is stored and sealed. Therefore, the combustion state of the burner body 1 is not adversely affected. In addition, the drainage hole 11
The other end of the pipe may be immersed in water in the toilet. The burner body 1 is removably attached to the bottom plate 16 of the gas range by support members 14 and 15.

FIG. 2 is a perspective view showing the structure related to the upper end portion 3 of the burner body 1. FIG. An outward facing flange 17 is formed on the upper end portion 3 below the top plate 4.
A sliding bearing 20 made of a heat-resistant material and having a flange 18 and a short cylindrical portion 19 is supported on this outward facing flange 17 . The short cylindrical portion 19 of the sliding bearing 20 is
It surrounds the upper end 3 of the burner body 1.

A crater member 21 is attached to the upper end portion 3. This crater member 21 includes a base body 22 and a cap 23 that covers the base body 22. The base body 22 is
A cylindrical portion 24 into which the upper end portion 3 is inserted, and the cylindrical portion 24
and a skirt portion 25 formed around the outer periphery of the skirt. The skirt portion 25 surrounds the short cylindrical portion 6 and
It covers the area and expands radially outward as it moves downwards. A plurality of upwardly open grooves 27 are formed at intervals in the circumferential direction in the upper part of the cylindrical portion 24 .

Referring to FIG. 3, the outer circumferential wall of the cap 23 is formed with unevenness 28 arranged in a circumferential direction, and is given a so-called crown finish. A protrusion 29 is formed in the lower part of the cap 23 in the circumferential direction. This protrusion 29 partially fits into a groove 27 formed in the base body 22 from above. As a result, a flame hole is formed in the groove 27.

Referring to FIG. 4, when the gas burner 1 becomes soiled, it can be cleaned by spraying tap water or the like from the shower 31. At this time, water that has entered the passage 2 of the burner body 1 from the flame hole side formed by the groove 27 flows through the passage 2 and is discharged to the outside from the drain hole 11. Therefore, water does not remain in the passage 2.

When the flame hole formed by the groove 27 is closed by water during this cleaning due to the surface tension phenomenon of the water, the cap 23 is rotated around the vertical axis with a finger. As a result, the base body 22 and the cap 23 rotate smoothly by the sliding bearing 20. Therefore, the water in the flame hole is blown outward by centrifugal force. In this way, it is possible to prevent ignition errors. Water splashed from the nozzle 31 flows into the vacuum 32 from the top plate 4 and is discharged from the drain hole 33.

Even if the flame hole is blocked by the boiling liquid flowing into the burner body 1 during cooking, by rotating the crater member 21, the boiling liquid is scattered and the flame hole is blocked. This can prevent clogging.

Effects As described above, according to the present invention, the passage formed in the burner body for supplying fuel gas and combustion air is inclined downward from the flame hole, and water that has entered the passage is prevented from entering the passage. Since the water is discharged from the drain hole provided at the bottom, it becomes possible to easily manufacture a gas burner using water or the like.

In particular, in the present invention, the passage 2 formed in the burner body 1 is formed so as to be inclined downward as it goes away from the flame hole, so that water that has entered the burner body 1 during cleaning and water that has entered during combustion. Liquid such as boiled-over liquid moves in the direction away from the flame hole in the passage 2, enters the drain hole 11 through the throat part 7, and is stored in the trap 12, where water during combustion is removed. Seal is done.

When a large amount of liquid enters the passage 2, the excess liquid passes through the trap 12 and drains into the drain pipe 13 while the trap 12 remains sealed.
is discharged from. Therefore, cleaning such as washing with water is extremely easy, and liquids such as water and liquid boiled down during combustion can be easily discharged from the drain hole 11 to the drain pipe 13 via the trap 12.

Moreover, since water sealing is performed by the trap 12, when the fuel gas is being discharged from the nozzle 8, there is no possibility that the raw gas will leak outside from the discharge hole 11, so it is safe. The fuel gas from the nozzle 8 is discharged toward the throat section 7, and at this time, combustion air is sucked through the intake port 9 and drains into the drain hole 1.
Around 1, the pressure is negative, which is lower than atmospheric pressure. Therefore, even if the liquid stored in the trap 12 should run out, air will be sucked from the drain pipe 13 through the trap 12, thereby preventing raw gas from leaking. Therefore, it is highly safe. Furthermore, as mentioned in the prior art, the present invention eliminates the need for a plug to close the passage in the burner body and is easy to operate, and the problem of raw gas leaking due to forgetting to tighten the plug is solved by the present invention. This does not occur as described above.

[Brief explanation of the drawing]

1 is a sectional view of one embodiment of the present invention, FIG. 2 is an exploded perspective view showing the structure related to the upper end portion 3 of the burner body 1, FIG. 3 is a perspective view of the cap 23 seen from below, and FIG. FIG. 4 is a partially cutaway perspective view showing a state in which the burner body 1 is being cleaned. 1... Burner body, 2... Passage, 3... Upper end, 7... Throat, 8... Nozzle, 9... Air intake, 11... Drain hole, 20... Sliding bearing, 21... Crater member, 22... base, 23...
...Cap, 27...concave groove.

Claims (1)

[Claims] 1 (a) A flame hole is formed in the upper part of the burner body 1, and a passage 2 formed in the burner body 1 that supplies fuel gas and combustion air to the flame hole is connected from the flame hole. (b) A throat portion 7 is formed near the lower end of the passage 2; (c) A portion of the passage 2 that is further away from the flame hole than the throat portion 7. (c1) A nozzle 8 is provided to supply fuel gas toward the throat portion 7, and (c2) an intake port 9 is provided to suck combustion air into the passage 2 from near the outer periphery of the nozzle 8. d) A drainage hole 11 is formed in the lower part of the passage 2 which is farther from the throat part 7 than the tip of the nozzle 8 on the nozzle 8 side, (e) Liquid is stored in the lower part of this drainage hole 11. A gas burner characterized in that a trap 12 is provided for sealing water during combustion, and a drain pipe 13 is connected to the trap 12.