JPS599150Y2 - burner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of a burner, and is particularly aimed at reinforcing the mixing pipe.

The other end of the mixing tube, which has a gas inlet at one end, is connected to a burner body having a flame hole, and a fitting is screwed to the gas inlet, and a nozzle is screwed to the fitting. In most cases, the nozzle was fixed with a union nut.

Therefore, when replacing the nozzle, the union nut is loosened and removed, the nozzle is taken out from the mounting bracket, replaced with a new nozzle, and the union nut is tightened again. Alternatively, if locking agents, sealants, etc. are applied to prevent gas leakage, and these have hardened over time, the rotational torque of the union nut will be transmitted to the mixing tube, causing damage to the mixing tube and the burner body. There have been cases where the connection between the gas and the gas tank has come off or cracks have formed, resulting in gas leakage.

The present invention has been devised in view of the above points, and embodiments of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a box-shaped burner main body having an opening at the top and a flame hole plate 2 fitted into the opening, and a suction port 3 bored at a suitable position on the bottom.

4 is a pair of metal plates 4' and 4'', which are made up of a recess 18 serving as a mixed gas passage and a flange 5 formed outward on both sides of the recess 18, and are joined at the flange 5. The mixing tube has a funnel-shaped gas supply port 6 at one end, and the other end is connected to the suction port 3 of the burner body 1 by spot welding or the like.

Reference numeral 7 denotes a mounting plate fixed to the open end of the gas supply port 6 with screws 8, 8, and an insertion tube 10 having a threaded portion 9 on the outer periphery is integrally formed approximately at the center thereof.

Reference numeral 11 denotes a nozzle inserted into the insertion tube 10, which is fixed by screwing the union nut 12 onto the threaded portion 9 and is connected to the gas pipe 13 at the same time.

Reference numeral 14 is a reinforcing plate having a substantially U-shaped notch and a notch 15 in a flat plate, and a fitting groove 16 into which the flange 5 of the mixing tube 4 fits on the periphery of the notch 15. It is fixed by spot welding or the like to one side of the burner body where the gas supply port 6 is located, and at the same time the corresponding part of the mixing pipe 4 is fitted into the notch 15, the flange 5 is also fitted into the fitting groove 16. It is combined.

Reference numeral 17 denotes a primary air intake hole bored at a suitable location on the mounting plate 7.

When replacing the nozzle 11, rotate the union nut 12 with a spanner or the like to loosen it and disconnect it from the gas pipe 13, then take out the nozzle 11, replace it with a new nozzle, and then tighten the union nut again. Tighten 12.

At this time, the rotational force of the union nut 12 is transmitted to the mixing tube 4 via the mounting plate 7, but the reinforcing plate 14
Since the burner body 1 is connected to the reinforcing plate 14 and the burner body 1, the rotational force is received by the reinforcing plate 14 and the burner body 1, so that the mixing tube 4
The transmission of the rotational force to the connecting portion at the other end is reduced to prevent damage to the connecting portion.

As mentioned above, the burner according to the present invention forms a mixing tube by joining a pair of metal sheets at the flange, each of which has a concave portion serving as a mixture passage and a flange portion facing outward on the periphery of the concave portion. This mixing tube is connected to the burner body, and a mounting plate having an insertion tube with a threaded portion on the outer periphery integrally formed approximately in the center is integrally fixed to a gas supply port provided at one end of the mixing tube. , a nozzle is inserted into the insertion cylinder and fixed with a nut screwed into the threaded part, and has a notch into which the middle of the mixing pipe is fitted, and when the nozzle is inserted, the flange part is fitted. A reinforcing plate with a groove formed on the periphery of the notch is fixed to the burner body, and the reinforcing plate and the burner absorb the force applied in the circumferential direction to the mixing pipe through the mounting plate when replacing the nozzle, etc. By being received by the main body and reliably reducing the transmission to the connecting part between the mixing tube and the burner main body, damage to this part can be prevented.

In addition, the mixing tube and the reinforcing plate are only engaged by fitting into the notch of the mixing tube, and no screws or the like are used, making assembly easy. Since it is the flange part of the mixing pipe, there is no need to form a special fitting part, which has great effects such as simplifying the structure.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway view of a burner according to the present invention, and FIG. 2 is a side sectional view of the same. 1...Burner body, 4...Mixing tube, 5
...Flange, 11 ...Nozzle, 14
...Reinforcement plate, 15...Notch, 16...
...Fitting groove.

Claims (1)

[Scope of utility model registration request] A mixing tube is formed by joining a pair of sheet metals at the flange portions, each of which has a concave portion serving as a mixture passage and a flange portion facing outward on its periphery, and this mixing tube is attached to the burner body. At the same time, a mounting plate integrally formed with an insertion tube having a threaded portion on the outer periphery approximately at the center is integrally fixed to a gas supply port provided at one end of the mixing tube, and a nozzle is inserted into the insertion tube. It is inserted and fixed with a nut that is screwed onto the threaded portion, and has a notch into which the middle of the mixing tube is fitted, and a fitting groove into which the flange portion is fitted when the mixing tube is inserted is provided on the periphery of the notch. A burner characterized by having a shaped reinforcing plate fixed to a burner body.