KR101591353B1 - Wind screen for gas range - Google Patents

Abstract

The present invention relates to a wind breaking device for a gas stove comprising: a main body blocking wind directly blown to a fire hole of a gas stove and supplying air required for combustion by appropriately controlling the air in order to have a plurality of air communication holes formed in the circumferential direction and mounted to close a circumference of the fire hole to enable a flame to be stably combusted at a proper degree; and an air communication means controlling an amount of an air introduced to the air communication hole. More specifically, the present invention is the air communication means, wherein a guide unit made of a bi-metal material is applied, a shape of the guide unit is displaced in accordance with the temperature of the fire hole, an opening degree of the air communication hole is automatically controlled, and an introduced air forms a rising airflow in order to properly maintain power and prevent a heat loss to improve heating efficiency and enable the wind breaking device to be easily cleaned.

Description

WIND SCREEN FOR GAS RANGE

The present invention relates to an air conditioner which is installed to shield the circumference of a fireplace so as to stably burn the flame at an appropriate intensity by appropriately regulating and supplying the air required for the combustion, And an air communication means for controlling the amount of air introduced into the air communication hole.

In particular, according to the present invention, as the air communication means, a guide portion made of bimetallic material is introduced so that the guide portion is displaced according to the temperature of the firebox, and the degree of opening and closing of the air communication hole is automatically controlled, The heating efficiency can be improved by keeping the thermal power appropriately while preventing the heat loss, and the cleaning is easy.

Generally, a gas stove has a fixed type gas stove fixedly installed in a kitchen such as a home or a restaurant, and a portable gas stove which can be carried out and used outdoors.

Among them, the portable gas stove is mainly used for outdoor use, so that when the wind is strong in the outdoors, the fireworks are turned off or the thermal power is weak, which causes a lot of heat loss.

In addition, even in the case of a fixed-type gas stove, there is a problem in that it is difficult to keep the thermal power required for cooking food constantly, because it is influenced by an indoor device forcing the wind to blow like a fan.

Therefore, various kinds of windshield devices are being released to prevent the influence of the wind when the gas range is used.

As a representative windshield device, there is a utility model registration "portable gas stove with a windshield" (Publication No. 20-1996-0038116, hereinafter referred to as prior art 1)

In the prior art 1, a plurality of windshield panels are hingedly installed along the top edge of the gas cooking stove so as to prevent the wind from directly affecting the hearth. However, the windshield panel may collapse due to wind, There is a risk that heat transmitted to the gas can be transmitted to the gas cylinder, thereby causing a safety accident such as a fire.

In order to solve the above problems, there is a utility model registration "windshield of portable gas range" (Registration No. 20-0399921, hereinafter referred to as prior art 2).

In the conventional art 2, a plurality of windshields connected in a hinged structure are fitted to the upper part of the pedestal of the gas stove to supply air necessary for interception of wind and combustion.

The height of the windshield is high, and the distance between the flame of the cooking stove and the cooking appliance is distant, which causes a large heat loss, resulting in poor structural safety.

Particularly, the conventional art 2 has a structure in which a groove portion through which air can communicate can be provided at the center of the upper end portion of the wind storm plate, and the amount and intensity of the air introduced through the groove portion can not be controlled, There is a disadvantage in that it is not possible to control the air circulation which is suitable for the air flow.

Accordingly, the present invention has been made to solve the above-mentioned problems,

It is installed close to the gas range of the gas stove so as to prevent the wind from directing the airflow to the fireplace and to adjust and supply the air necessary for the combustion so that the fire power can be properly maintained while reducing the heat loss. A main body having a plurality of air communication holes mounted around the circumference of the circumference to shield the circumference of the circumference thereof and air communication means for controlling the amount of air introduced into the air communication holes, .

Particularly, the present invention provides a bimetal as an air communication means so as to stably maintain a flame of an appropriate intensity by automatically controlling the flame intensity of a fireplace, that is, the flow rate (intensity) And the guide portion is displaced according to the temperature of the hearth to adjust the degree of opening of the air communication hole.

In addition, according to the present invention, the guide portion is opened so that the direction of the air flowing into the air communicating hole is formed toward the firebox so that the flame only intensively heats the bottom surface of the cooking appliance, thereby minimizing heat loss, A lower end portion of the guide portion is connected to the main body and an upper end portion of the guide portion is separated from the main body so that an upper end of the guide portion is opened upwardly inward.

In addition, the present invention facilitates the detachment of the windshield device and adjusts the size of the windshield device to an appropriate size in accordance with the size of the kiln of the gas stove to be used so that the balance between the windshield function and the air supply function And it is an object of the present invention to provide a wind shield device for a gas cooking stove.

According to an aspect of the present invention,

A main body installed to shield the perimeter of the gas stove so as to block the direct blowing of the air into the perforator, wherein a plurality of air communication holes are drilled along the circumferential direction so that air required for the combustion is supplied to the perforator; And

And air communication means provided in the main body for controlling air introduced into the air communication hole.

In the wind-shielding apparatus for a gas range according to the present invention,

The air communication means

And a guide part connected to the main body in a shape corresponding to the air communication hole, the guide part being made of bimetal material,

And the air communicating hole is opened and closed while the guide portion is displaced according to the temperature of the firebox.

Further, in the windshield device for a gas range according to the present invention

The guide portion has a lower end connected to the main body and an upper end separated from the main body so that the upper end of the guide portion is upwardly opened to the inside,

And the air flowing into the air communicating hole forms a rising air stream toward the fire wall.

Further, in the wind-shielding apparatus for a gas range according to the present invention,

The main body is characterized in that it is possible to adjust the circumferential length in accordance with the size of a mounted crater.

 The windshield device for a gas cooking stove according to the present invention is characterized in that an air communication hole is formed in a main body for shielding a perimeter of a fireplace and air communication means for adjusting the air introduced into the air communication hole is introduced to blow wind directly into the fireware, And the required air can be appropriately regulated and supplied according to the thermal power, so that the thermal power desired by the user can be maintained constant.

In particular, according to the present invention, since the guiding portion is appropriately deformed according to the temperature of the firebox through the guide portion using the bimetal, the degree of opening of the air communication hole is adjusted, The flame intensity can be maintained as constant as necessary only by the adjustment, and when the flame is not used, the guide portion is closed in the form of being inserted into the public communication hole, and the groove or the concave- So that hygienic management is possible.

In addition, according to the present invention, the air introduced into the air communicating hole forms a rising air stream toward the hearth so that the flame can intensively heat only the bottom surface of the cooking apparatus, thereby reducing heat loss, It is possible to freely adjust the size of the main body according to its size, and thus it can be used not only for a portable gas range but also for a fixed type gas range used in the room, and the mounting state of the wind- It can be used safely and has advantages of universality and utility.

1 is a perspective view showing a first embodiment of a windscreen apparatus for a gas stove according to the present invention;
2 is a sectional view showing a state in which the present invention is installed in a gas stove.
3 is a perspective view and a sectional view showing a second embodiment of a wind screen apparatus for a gas range according to the present invention.
4 is a cross-sectional view showing a main portion showing a modification of the windshield device for gas cooking stove according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the windshield device (S) for a gas cooking stove according to the present invention, when an unambiguous approximate direction reference is specified with reference to FIG. 2, a direction in which gravity acts is a downward direction, And the inner and outer sides are defined with the direction in which the firebox 1 is disposed with respect to the main body 10 as the reference, and the left and right sides and the inside and the outside sides are used in combination according to the description. In the detailed description and claims Unless otherwise specified, directions are specified in accordance with this standard.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a windscreen apparatus (S) for a gas stove according to the present invention will be described with reference to the accompanying drawings.

1 to 3 showing cross-sectional views according to embodiments of the present invention, and FIG. 4 showing a cross-sectional view of a main part of a modification of the present invention,

A wind screen apparatus (S) for a gas stove according to the present invention mainly includes a main body (10) and an air communication means (20) provided in the main body (10).

As shown in FIGS. 1 to 3, the main body 10 includes a metal material such as stainless steel that can maintain a constant shape regardless of the temperature, and is installed (installed) to shield around the furnace 1 As a member having a similar ring shape, the plane shape of the main body 10 can be variously shaped like a circle, a square, etc., depending on the shape of the firebox 1.

The main body 10 is formed to be lower than the height of the pedestal 2 which is generally applied to the top end of the cooking stove 1 and is mounted to shield only the periphery of the top end of the cooking stove 1, It is preferable to make it safe to use,

(Not shown) of the pedestal 2 so as to be universally usable regardless of the structure and height of the pedestal 2 through adjustment of the width of the fitting groove 13 and the body 10 and the control member 21 (air communication means 20) 2, and may be formed to have the same height,

In this case, however, it is more preferable that the height of the main body 10 is not higher than the height of the pedestal 2.

The main body 10 prevents wind from being directly blown into the firebox 1 due to the main body 10 when the firebox 1 is mounted around the firebox 1 and has a plurality of air communicating holes 11 So that the air required for the combustion is supplied to the firebox 1 through the air communication hole 11.

That is, when the circumference of the fireplace is simply shielded as in the prior art 1, the influence of the wind can be reduced. However, the four sides of the fireplace are closed by the seating of the cooking appliance, However, the present invention can solve the above-mentioned problems by simultaneously intercepting the wind and communicating the air appropriately.

Next, the air communication means (20) of the present invention adjusts the flow of air into the air communication hole (11).

The air communicating means 20 can be realized through an on-off valve or the like for controlling the degree of opening and closing of the air communicating hole 11,

In the case of a general electrically operated valve, not only price competitiveness as a windshield device is deteriorated, but there is a great fear of malfunction or failure due to heating due to characteristics close to the flame,

The present invention introduces a guide portion 23 made of a bimetal material as the air communication means 20, as shown in the right side partial sectional view of Fig.

The guide part 23 is made of bimetal material and has one end connected to one end of the air communication hole 11 of the main body 10 so that the guide part 23 is opened and closed according to the temperature of the firebox.

As a reference, a bimetallic material is a sheet made of two sheets of metal having a very different thermal expansion coefficient, and when the temperature is raised by heating, the sheet having a high coefficient of thermal expansion expands more than the sheet having a low coefficient of thermal expansion. When a shape is displaced and the temperature is lowered by cooling, the material is returned to its original shape.

Therefore, if the guide portion 23 using the bimetallic material is provided at one side of the air communication hole 11 of the main body 10,

The guide portion 23 is displaced according to the temperature of the firebox 1 and the air communication hole 11 is opened and closed.

That is, as shown in [A] of FIG. 2, when the firebox 1 is not used, the shape displacement of the guide portion 23 does not occur, and the air communicating hole 11 is kept closed,

As shown in [B] of FIG. 2, when the firebox 1 is used by burning a flame, the shape of the guide portion 23 is displaced to open the air communication hole 11, It is possible to block the direct blowing of air into the burner 1 and to supply the air required for burning to the inside firebox 1 through the air communication hole 11. [

In addition, according to the present invention, when the bimetal material is used, the present invention is not limited to a simple open (perforated) The opening degree of the air communicating hole 11 is automatically adjusted in accordance with the temperature change of the indoor air, so that an appropriate amount of air can be supplied in accordance with the thermal power.

That is, when the intensity of the flame is weakly controlled, the temperature rise of the guide portion 23 (main body 10) is restricted by that much, so that the guide portion 23 is displaced to a small shape, A small amount of air necessary for combustion can be supplied to the firebox 1 and the flame can be prevented from being blown off due to the wind generated by the inflow of air (due to the flow of air)

The temperature of the guide portion 23 (the main body 10) is greatly raised by the increase in the strength of the flame and the degree of opening of the air communication hole 11 It is possible to supply a large amount of air required for combustion to the firebox 1 and in this case even if the wind caused by the inflow of air indirectly influences the firebox 1, As shown in FIG.

When the guide portion 23 that is opened or closed in accordance with the temperature of the firebox 1 is introduced in this way, the guide portion 23 is provided with a hole, concavity, or the like on the surface of the main body 10 in a state in which the air communication hole 11 is closed So that the windscreen S can be easily cleaned.

The guide portion 23 made of such a bimetallic material may be connected to the body 10 (for example, by welding or the like)

Or a part of the main body 10 is cut to form the air communication hole 11 and the guide portion 23 and an additional metal having a high thermal expansion coefficient is added to one surface (outer surface) of the guide portion, Material,

Or the main body 10 itself is made of bimetallic material and a part of the main body 10 is cut to form the guide portion 23 so that the air communicating hole 11 can be opened and closed,

In the case of welding, the operation of joining the plurality of guide portions 23 is very troublesome, and since finishing finishing is required, the manufacturing convenience is lowered. Therefore, a separate metal having a high thermal expansion coefficient is welded to the guide portion 23 Or the main body 10 itself is made of a bimetallic material and the guide portion 23 is partially cut so that the air communication hole 11 is perforated.

In this case, it is preferable to manufacture the main body 10 in the form of a thin film having a thin thickness. However, if the main body 10 is made in the form of a thin film, the strength of the main body 10 itself is lowered, It is easy to deform such that the shape easily collapses.

Accordingly, as shown in the right side sectional view of FIG. 1 and in FIG. 4, the body 10 is formed as a thin strip (a kind of band) in the form of a thin film, in which the upper end portion or the lower end portion, By forming the twist portion 12, the thickness of the twist portion 12 is increased to reinforce the strength of the main body 10 so that deformation does not occur.

This introduction of the twisted portion 12 not only improves the strength of the windshield device S but also causes the twisted portion 12 to be broken even if the guide portion 23 is cut using the main body 10 itself as a bimetal material It is possible to prevent the body 10 from expanding together with the guide portion to be displaced in shape.

That is, when the main body 10 and the guide portion 23 are integrally made of the same bimetal material, the shape of the main body 10 may be displaced due to the temperature rise, It is possible to prevent the shape displacement and to allow the air guide hole 11 to be opened and closed by causing only the guide portion 23 to generate a shape displacement. In this case, the direction of the twist portion 12 is set to the outside Direction) is more preferable.

In addition, the twisted portion 12 has an effect of facilitating coupling of the main body 10 and the control member 21 including the guide portion 23, which will be described later.

In addition, the twist portion is equally applicable to the end portion of the guide portion 23.

That is, the end portion of the guide portion 23 separated from the main body 10 may be formed of the twist portion 24 to prevent deformation of the guide portion 23 having a small thickness.

1) by forming the twisted portion 24 in the direction toward the inside of the end portion of the guide portion 23 (that is, the leftward direction in the sectional view of FIG. 1 and the rightward direction in the sectional view of FIG. 4) A force is applied in the direction in which the twisted portion 24 is formed in the thermal expansion of the portion 23, so that the opening and closing of the air communication hole 11 through the shape displacement of the guide portion 23 can be performed more smoothly.

On the other hand, when the guide portion 23 integrated with the main body 10 is formed and a metal plate having a high coefficient of thermal expansion is attached to one surface of the guide portion 23, the operation of attaching the metal plate takes a long time,

In the case of using the main body 10 itself as a bimetallic material, only the guide portion 23 needs to be deformed in shape in accordance with the temperature rise. Therefore, it is possible to prevent the shape of the main body 10 from being deformed It is difficult to implement such a heat insulating structure. In addition, since the guide portion 23 and the main body 10 are heated together There is a disadvantage that it is practically difficult to appropriately maintain the adiabatic effect.

The present invention is characterized in that the air communicating means 20 has a shape corresponding to the body 10 and introduces the control member 21 having the guide portion 23 so that the control member 21 So as to be brought into contact with the inner or outer surface of the main body (10).

In this case, the main body 10 is made of a general metal material which does not cause a shape displacement according to the temperature displacement.

The control member 21 includes a body portion 22 and a plurality of guide portions 23 formed to correspond to the air communication holes 11 in the body portion 22,

The body portion 22 and the guide portion 23 may be integrally formed of a bimetal material or the guide portion 23 may be formed of a bimetal material and coupled to a separate body portion 22.

In the case of the control member 21 having the guide portion 23, even if it is attached to either the inner surface or the outer surface of the main body 10, the shape of the air communicating hole 11 The control member 21 is provided on the inner surface of the main body 10 as shown in the figure so that the degree of opening of the air communication hole 11 can be immediately adjusted by increasing the reactivity of the fire wall 1 It is more preferable that they are attached and bonded.

As shown in the drawing, the control member 21 having such a guide portion 23 can be formed as a single member having a shape corresponding to the main body 10 and attached to the inner surface of the main body 10 ,

Although not shown in the drawing, the control member 21 may be manufactured in such a manner that a plurality of body portions are separated in conformity with the arrangement row in which the guide portion 23 is formed, so that the guide portion 23 covers the air communication hole 11 It is also possible to attach a plurality of body parts to the inner surface of the body 10.

The control member 21 including the body portion 22 corresponding to the body 10 or the control member 21 having the plurality of body portions attached thereto is also formed in the form of a thin strip It is preferable to form it as a kind of band,

As described above, according to the present invention, when the main body 10 and the control member 21 are attached through a general adhesive, the main body 10 and the control member 21 are separated from each other due to heat, It is difficult to realize a size adjusting structure which will be described later by using a bolt or the like so that the upper end portion or the lower end portion of the body portion 22 or all of them are combined with the twist portion 12 of the body 10 By folding,

The coupling between the main body 10 and the control member 21 can be ensured through the twisted portion 12 and the strength can be improved and the shape displacement of the body portion 22 can be prevented.

On the other hand, the air communication hole 11 and the corresponding guide portion 23 are not limited in shape, position and arrangement type (in Fig. 1, one air communication hole 11 and the guide portion 23 having a predetermined length in the vertical direction) 2, the two air communication holes 11 and the guide portions 23 having a predetermined length in the vertical direction are arranged vertically side by side so as to be parallel to the circumferential direction So you can see that they are arranged in a row.),

1 and 2, the lower end of the guide portion 23 is connected to the body portion 22 of the main body 10 or the control member 21, and the upper end portion is connected to the main body 10 or the control member 21, And is separated from the body portion 22 of the body 21.

That is, the guide part 23 is formed by cutting the body 10 or a part of the body part 22 in a shape corresponding to the shape of the air communication hole 11, And the shape of the guide part 23 is displaced from the connecting part 23a to open and close the air communication hole 11. [

In this case, it is more preferable that the air communicating hole 11 and the guide portion 23 are formed in a similar rectangular shape having a predetermined length in the vertical direction and correspond to each other.

Therefore, as described above, since the guide portion 23 of the above-described structure is opened while the shape of the guide portion 23 is displaced upward from the connecting portion 23a at the lower side toward the inside, i.e., toward the firebox 1,

The air flowing into the air communication hole 11 forms an upward flow toward the firebox 1 on the upwardly inclined guide portion 23. [

When the inflow air forms an upward flow, the direction of burning the flame of the firebox 1 is directed to the upper side, that is, the bottom surface of the cooking apparatus placed on the pedestal 2, thereby concentrating and increasing the thermal power, So that the heating efficiency can be improved.

In the present specification, the air communicating hole 11 and the guide portion 23 are formed in a rectangular shape, which means not a rectangular shape in a strict sense, but a shape having a certain length or more like a rectangle,

Like the air communicating hole 11 in Fig. 1, the curved portion 11b having a semi-circular arc shape convex upward to connect the both linear portions 11a and the ends of the both linear portions 11a, 23 will be easier to open and close.

In this case, even if the main body 10 and the control member 21 are coupled to each other, the guide portion 23 can cover the air communication hole 11 (that is, It is not necessary that the shapes and the numbers of the guide portions 23 and the air communication holes 11 correspond to 1: 1 (for example, two air communication holes (One guide portion 23 may be opened and closed).

One of the main objects of the present invention is to make it possible to easily attach and detach both the portable gas range and the fixed type gas range so that it can be used universally regardless of the size (size) of the unit. Therefore, It is preferable that the size of the windshield device S of the present invention can be adjusted.

To this end, the main body 10 equipped with the air communication means 20 (i.e., the guide portion 23) is manufactured so as to be able to adjust the circumferential length according to the size of the firebox 1 to be mounted.

The circumferential length adjustment of the main body 10 (including the control member 21) can be performed in various ways,

The main body 10 and the control member 21 are made of a flexible material such as flexible and elastic or stretchable or easily foldable or the like so that the main body 10 and the control member 21 are made of a material A method in which a user arbitrarily adjusts the size of the display unit 10 (see FIG. 1)

Or a method of adjusting the size of the main body 10 in the form of a belt (refer to [B] in FIG. 3) by introducing a detachment means (not shown) detachably attachable to both ends of the main body 10 can be considered.

The above-described method for adjusting the circumference length of the main body 10 is only one example of various embodiments for adjusting the length, and may be implemented through various banding structures and / or banding means.

If a predetermined space is formed between the firebox 1 and the pedestal 2 or the height of the pedestal 2 is higher than that of the windshield device, the size of the main body 10 can be freely adjusted The windshield device S may be used. However, when the spacing space between the firebox 1 and the pedestal 2 is narrow or the height of the pedestal 2 is low, the windshield device S may not be usable.

3, a plurality of fitting grooves 13, into which the pedestal 2 can be inserted, are introduced along the upper ends of the body 10 and the control member 21, So that the windshield device S can be mounted regardless of the specification of the windshield device S.

The fitting grooves 13 prevent the interference of the pedestal 2 when the circumferential length of the main body 10 is adjusted and prevent the interference with the windshield device S through the fitting structure of the fitting groove 13 and the pedestal 2. [ So that the windshield device S can be prevented from flowing on the pedestal 2.

Although the four fitting grooves 13 are radially provided in accordance with the general structure of the pedestal 2 in the drawing, the fitting grooves 13 are not limited to this, So that it can be fitted to the pedestal 2 through the overlapping of the fitting grooves 11 when the length is adjusted.

Meanwhile, in the case of a general gas stove, the pedestal 2 can be separated from the gas stove separately from the firebox 1, thereby enabling individual washing. In this case, However, when the pedestal 2 is integral with the gas range, it may not be easy to attach and detach the windshield device S.

As shown in [B] of FIG. 3, the gas stove to which the present invention is mounted is provided with a hinge-coupled pedestal 2a at the end of the pedestal 2, .

That is, the present invention may be sold separately as a separate product not included in the gas range, or may be sold together as a part of the components included in the gas range. In the case of the pedestal 2 of the gas range to which the present invention is applied, The structure of the hinge-coupled pedestal 2a can be applied to freely attach and detach the windshield device S so that it can be used irrespective of the type of the gas stove, thereby improving the versatility and utility.

The supporting portion 2a includes an elastic body (not shown) and a receiving portion 2a which are coupled to rotate vertically with the hinge shaft 2b coupled to the pedestal 2 as a starting point, And a stopper (not shown) for restricting the degree of the lower rotation of the windscreen S so that the windscreen S can be attached and detached by opening the catch 2a, 2) Make sure that the cookware placed on the top is stably supported.

Although not shown in the drawings, the pedestal 2 for a gas range to which the present invention is applied includes a pair of protrusions (not shown) spaced concentrically around the circumference of the furnace 1 So that the device can be housed and mounted in the space between the protrusions in the correct position around the furnace 1.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Substitutions should be construed as falling within the scope of protection of the present invention.

R: Gas stove 1: Coke 2: Stand
10: main body 11: air communicating hole 13: fitting groove
20: air communication means 21: control member 22:
23: Guide part 12, 24: Twisted part

Claims (4)

A main body installed to shield the perimeter of the gas stove so as to block the direct blowing of the air into the perforator, wherein a plurality of air communication holes are drilled along the circumferential direction so that air required for the combustion is supplied to the perforator; And
And air communication means provided in the main body for controlling air introduced into the air communication hole,
The air communication means
And a guide part connected to the main body in a shape corresponding to the air communication hole, the guide part being made of bimetal material,
And the air communicating hole is opened and closed while the guide portion is displaced according to the temperature of the hearth.
The method according to claim 1,
The guide portion has a lower end connected to the main body and an upper end separated from the main body so that the upper end of the guide portion is upwardly opened to the inside,
Wherein the air flowing into the air communicating hole forms a rising air stream toward the hearth.
The method according to claim 1,
Wherein the main body is adjustable in circumferential length according to a size of a crater to be mounted.
4. The method according to any one of claims 1 to 3,
Wherein the main body includes a plurality of fitting grooves through which a pedestal of the gas stove can be fitted along an upper end portion thereof.

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