JPH0619937Y2 - Stove burner - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stove burner used for a gas table or the like.

[Conventional technology]

In a stove burner used for a gas table or the like, an annular collar is provided on the outer peripheral edge of the burner cap as a measure for preventing lift of combustion flame and preventing inflow of broth or the like into the flame mouth. However, as shown in FIG. 3 as a conventional technique,
Burner body 2'integrally formed at the tip of the mixing tube 1 '
And a burner cap 3'which is detachably provided with a plurality of flame port grooves for forming flame ports on the lower surface of the peripheral edge, the outer peripheral edge of the upper end of the burner cap 3'is horizontally horizontally outward. Generally, a protruding annular collar 4'is provided. [Problems to be Solved by the Invention] In the above-mentioned conventional technique, since the annular collar 4'only protrudes horizontally, the length of the annular collar 4 ', that is, the protruding dimension l'is increased. Since the lifting performance and the effect of preventing the inflow of broth and the like are improved as it is increased, the annular collar 4'cannot be shortened more than necessary. Therefore, usually l '= 3
It must be at least mm. Therefore, there is a problem that the burner cap 3'has a large diameter and the burner becomes large in size, and the burnout of the annular brim 4'becomes remarkable, resulting in poor durability.

Therefore, as shown in FIG. 4, the tip end portion of the burner cap 3'is bent obliquely downward to be inclined .theta. 'On the outer peripheral portion of the upper edge of the burner cap 3', and at the outlet of the flame port A ', a groove portion 4a' of dimension b '. It has been proposed that an annular flange 4'having the above-mentioned shape is provided so that its inclined tip end faces the flame port A '.

In this case, although it is effective in preventing the lift of combustion and preventing the inflow of broth or the like into the flame mouth, the drawback that the flame burns out the inclined tip portion has not been solved.

The present invention has been made in view of such problems of the conventional technology,
By locating the tip of the annular collar above the extension of the upper wall surface of the flame mouth, burnout of the inclined tip is eliminated, and the lift performance is improved and the inflow of broth etc. into the flame mouth is also prevented. It also aims to provide a hot stove burner.

[Means for Solving the Problems]

In order to achieve the above object, a stove burner of the present invention comprises a burner body 2 integrally formed at the tip of a mixing tube 1.
And a burner cap 3 having a large number of flame openings 7 forming flame openings A on the lower surface of the peripheral edge. The tip end portion is bent obliquely downward to the outer peripheral portion of the upper edge of the burner cap in the radial direction. In a stove burner formed by forming an extending annular collar 4, the tip end of the annular collar 4 bent obliquely downward is connected to the flame port A.
It is characterized in that it is provided above the extension line of the upper wall surface by a certain dimension a.

[Action]

In the stove burner according to the present invention having the above-mentioned configuration, the tip end portion of the annular brim bent obliquely downward is formed so as to be positioned above the extension line of the upper wall surface of the flame outlet by a certain dimension. Since there is no burnout due to the flame at the tip, part of the mixed gas ejected from the flame entrance enters the annular groove formed by bending the tip obliquely downward and exhibits a flame holding effect Therefore, the momentum of the combustion flame is suppressed, the lift phenomenon of the combustion flame is effectively prevented, and stable combustion is achieved.

Further, the flame mouth is covered with an annular collar in an umbrella shape, and the tip of the annular collar is bent obliquely downward, so that the spilled juice etc. spilling on the burner head is removed from the upper surface of the annular collar of the burner body. There is no possibility that boiling liquid etc. will flow into the flame mouth because all of it will flow down into the soup saucer via the outer surface of the upper part and will not flow to the inner surface of the annular collar.

〔Example〕

An embodiment of a stove burner of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 2 is a burner body integrally formed at the tip of the mixing tube 1, which has a loop-shaped mixing chamber 2a communicating with the mixing tube 1 and an inclined smooth surface 5 at the peripheral edge of the upper opening. Then
A support cylinder 6 that also serves as a secondary air passage is provided at the center. A burner cap 3 has a plurality of slit-shaped flame port grooves 7 that are in close contact with the slanted smooth surface 5 of the burner body 2 to form a flame port A on the lower surface of the peripheral edge thereof, and the burner cap is centered on the burner cap 3. The center support tube 6 of the body 2 is provided with a support tube 8 that also serves as a secondary air passage that can be inserted without rattling. Therefore, the burner cap 3 is placed on the burner body 2 and the burner cap 3 is attached to the center support cylinder 6 of the burner body 2.
Of the burner body 2 by inserting the central support tube 8 of the burner body 2 and bringing the lower surface of the slit-shaped flame port groove 7 of the burner cap 3 into close contact with the slanted smooth surface 5 of the burner body 2.
The slit-shaped flame mouth groove 7 is formed on the periphery between the burner cap 3 and the burner cap 3.
By doing so, a large number of flame openings A are formed radially, and a stove burner having a burner head C with a secondary air passage B is formed in the center, and the burner cap 3 is removed from the burner body 2. If removed, these can be separated.

Further, 4 is an annular flange provided on the outer peripheral portion of the upper edge of the burner cap 3, and the annular flange 4 has a tip portion of, for example, 30 ° C.
An annular groove 4a having a depth of a certain dimension b is formed at the upper end of the outlet of the flame port A by the tip portion, which is formed by being bent obliquely downward with an inclination angle θ of -60 ° C and extending in the radial direction. And the lower end surface of the tip is located above the extension line of the upper wall surface of the flame opening A (a mixed gas ejection line of the flame opening A) by a certain dimension a (for example, a = 2 mm), And,
The annular flange 4 is formed so as to project outward by about 1 = 2 mm.

In the configuration of the above embodiment, the tip of the annular collar 4 is connected to the flame port A.
Since it is located above the extension of the upper wall surface by a certain dimension a, the tip portion is not burned by the flame. Further, part of the mixed gas ejected from the flame port A enters the annular groove 4a at the upper outlet of the flame port A and exerts a flame holding effect. Therefore, the momentum of the combustion flame is suppressed accordingly. There is no lift phenomenon in the flame. Furthermore, flame mouth A
Is completely covered with an annular collar 4 whose tip is bent obliquely downward, so that the spilled juice etc. spilling on the burner head C smoothly flows off from the annular collar 4, and is squeezed through the outer surface of the upper portion of the burner body 2. All of it immediately flows down into a saucer (not shown), and moreover, since the tip of the ring-shaped collar 4 is bent obliquely downward, boiling water or the like will not flow along the inner surface of the ring-shaped collar 4 at all. Absent.

[Effect of device]

As described above, in the present invention, in the case where the tip of the annular collar is bent obliquely downward, the tip is positioned above the extension line of the upper wall surface of the flame port by a certain size,
It is possible to prevent the tip end from burning due to the flame and improve the durability.

Further, even if the length of the annular collar, that is, the protruding dimension is shortened to about half of the conventional size, the flame-holding effect of the groove formed by the tip effectively prevents the lift phenomenon of the combustion flame from occurring. Also, the clogging of the flame due to broth is prevented by eliminating the flow of broth into the flame.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an embodiment of a stove burner according to the present invention, FIG. 2 is a perspective view of a burner cap, and FIGS. 3 and 4 are sectional views of a conventional example. Is. 1 ... Mixing tube, 2 ... Burner body, 3 ... Burner cap, 4 ... Annular collar, 4a ... Groove part.

Claims (1)

[Scope of utility model registration request] 1. A burner cap (2) integrally formed at the tip of a mixing tube (1) and a burner cap (7) having a plurality of flame port grooves (7) forming flame ports (A) on the lower surface of the peripheral edge. In the stove burner, the annular flange (4) is formed on the outer peripheral portion of the upper edge of the burner cap, the distal end of which is bent obliquely downward and extends in the radial direction. (3) The stove burner is characterized in that the tip portion bent obliquely downward is located above the extension line of the upper wall surface of the flame opening (A) by a certain dimension (a).