JPS6246981Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to a stove for use in homes, etc., in which the combustion of the stove burner is controlled by the temperature of the object to be heated placed on the stove. be.

Structure of a conventional example and its problems A burner cap used in a conventional stove burner is shown in FIG. 4, and will be described below.

1 is burner cap, 2 is burner cap 1
3 is a through hole provided in the center of the burner cap 1; 4 is an upper surface of the burner cap 1; 5 is placed on the upper surface 4; The protective cylinder 6 inserted into the burner cap 1 and fixed to the burner cap 1 is constituted by a secondary air hole provided in the cylindrical surface of the protective cylinder 5.

When the burner cap 1 having such a configuration is used as a stove burner, when boiling over from a pot or the like that is an object to be heated placed on the stove, the boiling liquid, etc. that has boiled over on the top surface 4 will be removed through the through hole. It does not flow to 3 and accumulates on the upper surface 4. Since the burner cap 1 is at a high temperature, the broth solidifies on the upper surface 4. The solidified material increases as it is used, and eventually the broth etc. flows from the secondary air hole 6 to the through hole 3.
Thereafter, it is solidified in the secondary air hole 6 in the same manner. Therefore, the secondary air that should be supplied from the secondary air holes 6 is no longer supplied, resulting in a shortage of secondary air necessary for combustion, which has the disadvantage of inducing incomplete combustion. In addition, when the secondary air vents 6 are blocked, the boiling liquid also flows to the side of the flame holes 2 provided around it, and the flame holes become clogged with the boiling juice, reducing the number of flame holes 2 that were originally set. However, there was a drawback that the amount of combustion per flame hole 2 varied and good combustion could not be obtained. In addition, the protective tube 5
When forming from a pipe, a drawing process is used to reach the size of the through hole 3. Furthermore, when made from sheet metal, the cylindrical end face must be fixed by welding or caulking to provide protection, etc., which increases the number of processing steps and increases the cost.

This invention addresses the above-mentioned problems and prevents the secondary air hole, which is made up of a protective tube provided on the top surface of the burner cap, from being blocked by boiling liquid, etc., and maintains the function of the protective tube during combustion. The purpose is to secure secondary air supplied to the combustion chamber and prevent abnormal combustion.

Configuration of the device This device is a burner that has a through hole in the center and is constructed by fitting a burner cap and a burner body together, with multiple stepped protrusions on the upper surface of the burner cap, a hollow cylindrical protective tube being placed on the protrusions, the burner cap and the protective tube being fixed together, and a gap being formed between the upper surface of the burner cap and the lower end of the protective tube.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention is shown in FIGS. 1 to 3 and will be described below. Note that parts having the same functions as those of the conventional example are given the same numbers, and explanations thereof will be omitted.

7 is a burner body on which a burner cap 1 is placed, and a burner 8 is constructed. Reference numeral 9 is a trivet for placing and holding the heated object 10 at a predetermined distance from the burner 8, and 11 is inserted through the through hole 3 of the burner 8 and the inside of the protective cylinder 5, and its tip contacts the bottom surface of the heated object 10. Temperature sensor, 12 is the combustion flame formed in the flame hole 2 of the burner 8, 13 is the combustion flame 12 and the protective tube 5
14 is the space constructed between the burner caps 1 and 14.
A plurality of protrusions are provided on the upper surface 4 , and the protrusions 14 are composed of a protrusion 15 and a step 16 . Reference numeral 17 indicates a groove provided on the outer peripheral surface of the protection tube 5 over the entire circumference, and reference numeral 18 indicates a lower end portion of the protection tube 5, and a step 1 of the burner cap 1.
6. Burner cap 1 and protection tube 5
The convex part 15 is fitted into the groove 17 and fixed by caulking the convex part 15 toward the groove 17 side. 1
Reference numeral 9 denotes a gap formed between the upper surface 4 of the burner cap 1 and the lower end portion 18 of the protection tube 5 when the burner cap 1 and the protection tube 5 are integrated, and the stove is constituted by this.

When fuel is supplied to the burner 8, the stove having the above configuration forms a combustion flame 12 and starts combustion. At this time, the object to be heated 10 on the trivet 9 is heated. If the stove is equipped with a function of sensing the temperature of the object to be heated 10 by the temperature sensor 11 and controlling the fuel supply based on the signal from the temperature sensor 11, for example, the fuel supply will be controlled. That is, the temperature of the heated object 10 is maintained constant by repeating ignition and extinguishing at the temperature of the heated object 10. At this time, the protection tube 5 is the temperature sensor 1.
The temperature sensor 11 is heated by the radiant heat of the combustion flame 12 so that the temperature sensor 11 does not receive heat from objects other than the heated object 10.
protect from heat. On the other hand, in order to maintain the combustion flame 12 in a good condition, it is necessary to supply secondary air as combustion air. Therefore, a through hole 3 is provided in the center of the burner 8, and the combustion flame 12 is provided in the burner 8.
Secondary air must be supplied to the center side of the space 13, that is, to the space 13. The lower end 18 of the protective tube 5 and the burner cap 1 are connected to supply secondary air to the space 13.
A gap 19 is formed and supplied between the upper surface 4 and the upper surface 4.
Therefore, the burner 8 maintains good combustion.

Therefore, when the burner cap 1 is made by casting, forging, etc., the protrusion 14 can be obtained at the same time, and there is an advantage that no machining is required to form the protrusion 14 separately. Furthermore, the protection tube 5 and the burner cap 1 can be easily integrated by a caulking operation in which the protrusion 15 is plastically deformed toward the groove 17 and a part of the protrusion 15 is adapted to the groove 17. It produces effects that are easily obtained.

Effects of the invention The present invention is a burner constructed by fitting a burner cap with a through hole in the center to a burner body, and has a plurality of step-shaped protrusions on the upper surface of the burner cap, and a hollow cylindrical shape on the protrusion. The burner cap and the protection tube are fixed to form a gap between the upper surface of the burner cap and the lower end of the protection tube.

(1) Conventionally, when making a protective cylinder using sheet metal or pipe processing, it was necessary to roll the sheet metal to form a cylinder, and then welding, etc. to connect the end faces, and there was also a need for welding to connect the end faces. The protective tube is constructed by simply cutting the pipe, instead of drawing a portion of the pipe, which has the effect of reducing processing costs.

(2) The gap between the top surface of the burner cap and the protection cylinder has no pool of boiling liquid from the object to be heated on the top surface of the burner cap, so the gap is blocked by the boiling liquid and is in a closed state. Secondary air is supplied to maintain good combustion.

[Brief explanation of the drawing]

Fig. 1 is a side view of the overall configuration of a stove in an embodiment of the present invention, Fig. 2 is a plan view of a burner cap used in the stove, and Fig. 3 is an X-O-Y of the burner cap in Fig. 2. 4 is a sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1...burner cap, 2...flame hole, 3...through hole, 4...top surface, 5...protective tube, 7...burner body, 14...projection, 17...groove, 19...
…gap.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A burner cap having a through hole in the center and a plurality of tooth-shaped flame holes arranged around the burner body is removably fitted into the burner cap, and the upper surface of the burner cap is A plurality of stepped protrusions are provided on the protrusion, a hollow cylindrical protection tube is placed on the protrusion, the burner cap and the protection tube are fixed, and the upper surface and the lower end of the protection tube are connected to each other. Stove burner with a gap in between. (2) The cooking stove burner according to claim 1, wherein a groove is provided on the outer circumferential surface or the inner circumferential surface of the protective cylinder, and the groove is covered and held by a convex portion on the upper surface of the burner cap.