Cast Iron Grill Pan for Briquette Fire

Abstract

The present invention relates to a cast iron griddle plate for briquette fires designed to prevent soot generated by oil from food ingredients falling onto the combustion surface during grilling using briquettes as a heat source, to smoothly discharge oil through a rim discharge section, and to facilitate heat control and rotation. The griddle plate comprises: a main body manufactured by a casting method, formed in the shape of a disc having a predetermined thickness and diameter, and mounted on a burner on which a heat source is mounted; a central heating section formed to occupy the central area of ​​the main body of the griddle plate, and having a closed surface without a void penetrating the upper and lower parts, thereby physically blocking the oil generated from food ingredients during cooking from falling directly onto the lower combustion surface and causing soot; and a rim discharge section formed by penetrating a plurality of elongated slits arranged radially or at regular intervals along the outer periphery of the central heating section, which allows oil flowing along the surface of the central heating section to pass through and induce it to fall into a water receiving area placed on the outer edge of the burner.

Description

Technology Field

[0001] The present invention relates to a cast iron griddle plate for briquette fires, and more specifically, to a cast iron griddle plate for briquette fires designed to prevent soot generated when oil from food ingredients falls onto the combustion surface during grilling using briquettes as a heat source, to smoothly discharge oil through a rim discharge section, and to facilitate heat control and rotation. Background Technology

[0003] In Korean culinary culture, direct grilling has long been loved for its unique smoky flavor and aroma. In particular, the briquette grilling method remains highly popular among gourmets due to its distinctive consistent high heat and smoky scent. Traditional briquette grilling primarily involves grilling meat using a wire mesh or a simple perforated plate, which has the advantage of an excellent direct grilling effect where the heat source comes into direct contact with the meat to cook it.

[0004] However, conventional grills or open griddles expose a fatal flaw when grilling fatty ingredients such as pork belly. A large amount of milk fat melted from the ingredients flows through the slits or mesh and falls directly onto the briquette fire, which reaches temperatures of 600 to 800 degrees Celsius. During this process, the fat undergoes incomplete combustion, generating a large amount of smoke and soot. This smoke contains carcinogens such as benzo[a]pyrene, which, when absorbed by the ingredients, not only threaten the health of the eater but also cause a bitter taste, thereby degrading the flavor of the grilled food.

[0005] To address this, solid iron plates or pot-lid-shaped grills are sometimes used; however, these have limitations as they merely produce an effect resembling frying or boiling, failing to bring out the unique smoky flavor characteristic of direct-fire grilling. Furthermore, existing cast iron grills with oil drainage functions also have simple slit structures that easily become clogged by meat residue. They also fail to completely prevent the phenomenon where drained oil flows back down the inner bottom of the grill towards the central heat source due to surface tension (Coanda Effect), causing it to burn. In addition, unlike gas roasters, briquette stoves make it difficult to finely control the heat output, and since the position of the grill plate is fixed, the problem of uneven cooking and burning of specific parts of the meat occurs frequently.

[0006] Meanwhile, the aforementioned background technology is technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot necessarily be considered publicly known technology disclosed to the general public prior to the filing of the present invention. Prior art literature

[0008] Korean Registered Patent No. 10-2248193 (Published May 4, 2021) The problem to be solved

[0009] The present invention has been devised to solve the problems of the prior art described above. The objective of the present invention is to suppress the generation of smoke and soot by physically blocking the direct fall of oil through a closed surface formed in the central heating section, and to provide a pleasant grilling environment by safely guiding the oil to an outer drip collection area through an elongated slit formed in the rim discharge section. Furthermore, the invention aims to provide a cast iron grill plate for briquette fires that allows for the free control of the firepower of the briquette fire and the uniform heating of food ingredients by rotating the grill plate, adjusting its height, and actively supplying external air through a multi-functional grill plate holder.

[0010] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0012] A cast plate for briquette fire according to one embodiment of the present invention comprises: a plate body manufactured by a casting method, formed in the shape of a disc having a predetermined thickness and diameter and placed on a burner on which a heat source is placed; a central heating part formed to occupy the central area of ​​the plate body and having a closed surface without a void penetrating the upper and lower parts, thereby physically blocking oil generated from food ingredients during cooking from falling directly onto the lower combustion surface and causing soot to be generated; and a rim discharge part formed by penetrating a plurality of elongated slits arranged radially or at regular intervals along the outer periphery of the central heating part, which allows oil flowing along the surface of the central heating part to pass through and induce it to fall into a water receiving area placed on the outer edge of the burner.

[0013] In one embodiment, the grill plate body has a thickness of 150 mm so that it gently receives strong heat from the briquette fire, maintains a high temperature for a long time, and cooks the food ingredients to the inside without burning the outside, and may include a micro-pore structure formed by a casting method on its surface.

[0014] In one embodiment, the porous structure may be configured to receive radiant heat from the briquette fire and, at the same time, temporarily retain fat and juices released from the food ingredients and then transfer them back to the food ingredients along with the heat to preserve the smoky aroma and flavor.

[0015] A cast iron griddle for briquette fire according to one embodiment of the present invention may further include handle portions installed on both sides of the griddle body so that a user can grip it.

[0016] A cast iron griddle plate for briquette fire according to another embodiment of the present invention may further include a multi-functional griddle plate holder installed along the rim of the burner's inlet to support the lower rim of the griddle plate body, guide it to enable horizontal rotation, and regulate the heat by spraying external air toward the heat source.

[0017] In one embodiment, the multi-functional grill plate holder comprises: a base frame formed in a circular ring shape and installed along the rim of the burner's inlet; a rotation guide member formed in a circular ring shape, rotatably connected and installed on the upper side of the base frame to support the grill plate body, and rotating the grill plate body as it is driven; a frame drive motor installed on the base frame and driven to rotate the rotation guide member only when the rotation guide member is seated in close contact with the base frame; an external air supply tank that supplies external air at high pressure to the base frame; an external air flow channel that forms a flow path along the inner side of the base frame for the air supplied from the external air supply tank to flow through; a plurality of blower nozzle tubes arranged radially at regular intervals along the inner side of the base frame and spray high-pressure air delivered through the external air flow channel toward the heat source; and a nozzle exposure groove formed extending along the inner surface of the base frame so that each front end of the blower nozzle tube spraying air is exposed. It may include: a wind direction angle adjustment unit installed along the inner side of the base frame to support each rear end of the blower nozzle tube and to adjust the direction of the air being sprayed by lifting the rear end of the blower nozzle tube to adjust the arrangement angle of the blower nozzle tube; and a grill plate lifting drive unit installed between the base frame and the rotating guide member, which raises the rotating guide member to a parallel state or to a specific position to adjust the arrangement position or angle of the grill plate body while simultaneously inducing the discharge of smoke generated during combustion through the gap between the base frame and the rotating guide member.

[0018] In one embodiment, the wind direction angle adjustment unit may include: a rotary drive ring formed in a circular ring shape and installed to be rotatable along the inner side of the base frame at the lower side of each rear end of the blower nozzle tube; a plurality of tilting cams spaced apart along the upper side of the rotary drive ring and rotating together as the rotary drive ring rotates to lift each rear end of the blower nozzle tube; and a ring drive motor that rotates the rotary drive ring in a forward or reverse direction.

[0019] In one embodiment, the grill plate lifting drive unit may include: a plurality of foldable links that are configured to be foldable at the middle and are connected and installed between the base frame and the outer surface of the rotation guide member, and which unfold in a straight line as the gap between the base frame and the rotation guide member widens, thereby preventing the gap between the rotation guide member and the base frame from widening beyond its own length; a plurality of lifting drive motors that are spaced apart along the upper end of the base frame and rotate simultaneously or individually; and a plurality of lifting cams that are installed by shaft coupling to each drive shaft of the lifting drive motor, and which are exposed to the upper side of the base frame as they rotate and lift the rotation guide member simultaneously or individually.

[0020] In one embodiment, the air injection line connected from the outside air supply tank to the outside air flow channel may be formed in the shape of a spiral cooling jacket that wraps around the outer surface of the frame drive motor and the ring drive motor, and may have a heat exchange circulation structure configured such that the incoming cold outside air absorbs the driving heat generated by the motor to cool the motor, and at the same time, the air itself is supplied to the blower nozzle tube in a preheated state through the absorbed heat to increase the combustion efficiency of the briquette.

[0021] In one embodiment, a gravity flap made of a heat-resistant metal material is hinged to the front outlet of the blower nozzle tube, so that when air injection is stopped, it remains closed by its own weight to prevent external oil or scattered ash from entering the nozzle, and operates to open only by the wind pressure generated when air is injected, thereby preventing the nozzle from clogging. Effects of the invention

[0023] A cast iron griddle for briquette fire according to one embodiment of the present invention adopts a structure in which the central area is closed, thereby fundamentally preventing harmful smoke and soot generated when meat oil produced during cooking falls onto the high-temperature briquette fire and burns, thus providing a hygienic and healthy cooking environment.

[0024] In addition, the elongated slits arranged radially in the rim area quickly discharge oil flowing down from the center into the external water tray, and the expanded slit width and reverse taper shape minimize the clogging of the outlet by carbonized residue, thereby greatly improving the convenience of maintenance.

[0025] In addition, by using a cast iron material with excellent heat retention, the heat of the briquettes is transmitted gently and continuously, preserving the juices of the meat. Furthermore, the rotating and lifting functions of the multi-functional stand allow for precise control of the position of the ingredients and the heat intensity, enabling even beginners to achieve the best direct-fire grilled flavor without burning.

[0026] The effects of the present invention are not limited to those mentioned above, and various effects may be included within the scope obvious to a person skilled in the art from the contents described below. Brief explanation of the drawing

[0028] FIG. 1 is a diagram showing the schematic configuration of a cast iron griddle plate for a briquette fire according to one embodiment of the present invention. FIG. 2 is a diagram showing a cast iron griddle plate for a briquette fire according to another embodiment of the present invention. FIG. 3 is a diagram showing the detailed configuration of the multi-functional griddle plate holder of FIG. 2. FIG. 4 is a diagram showing a griddle plate lifting drive unit according to the present invention. Specific details for implementing the invention

[0029] The following detailed description of the invention refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that various embodiments of the invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in relation to one embodiment. It should also be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the invention is limited only by the appended claims, including all equivalents to those claimed therein, provided appropriately described. Similar reference numerals in the drawings refer to the same or similar functions across various aspects.

[0030] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

[0031] FIG. 1 is a diagram showing the schematic configuration of a cast iron griddle for briquette fire according to one embodiment of the present invention.

[0032] Referring to FIG. 1, a cast iron plate (10) for a briquette fire according to one embodiment of the present invention includes a plate body (100), a central heating part (200), and a rim discharge part (300).

[0033] The grill plate body (100) is formed integrally by a casting method using a heat-resistant cast iron material that does not deform even when exposed to a high-temperature briquette heat source for a long time, and is formed in the shape of a disc having a predetermined thickness and diameter so that it can be stably seated on the top of a briquette stove or burner.

[0034] Furthermore, the thickness and surface structure of the grill plate body (100) according to one embodiment of the present invention are limited to have physical properties optimized for a special heat source, such as briquette fire, in addition to merely morphological features.

[0035] Specifically, the above-mentioned grill plate body (100) is formed to have a thickness of 150 mm. This figure is not merely a design choice, but is the critical value most optimized for briquette fire, derived from the inventor's direct experiments and verification of differences in heat transfer, degree of meat cooking, preservation of juices, and smoky flavor while varying the thickness of the grill plate over several years starting in 2004. Generally, briquette fires have strong and continuous heat, but the 150 mm thick cast plate does not rapidly transfer the strong heat of the briquette fire; instead, it gently absorbs it and performs a heat storage function that retains heat inside for a long time. Since the heat accumulated in this way is transferred slowly and steadily onto the meat, it provides the effect of preventing only the surface of the ingredients from burning despite the strong heat and cooking them stably all the way to the inside. In other words, unlike a standard grill plate that cooks quickly, it enables cooking that preserves the flavor.

[0036] In addition, the above-mentioned grill plate body (100) includes a unique micro-pore structure formed by a casting method on its surface. This micro-pore structure serves to evenly accommodate the strong radiant heat of the briquette fire throughout the grill plate, while simultaneously performing a circulation function that temporarily holds the fat and meat juices released from the meat during the cooking process inside the pores and returns them to the ingredients along with the heat. In particular, the pork fat melted from the meat spreads evenly over the surface through the micro-pores of the cast plate, which further enhances the savory flavor. As a result, through the action of this pore structure, the smoky flavor of the ingredients becomes deeper, and the taste and juices of the meat can be maintained until the end of cooking.

[0037] In short, the grill plate body (100) according to the present embodiment combines optimal heat transfer control through a thickness of 150 mm and flavor preservation function through a fine pore structure, thereby providing the effect of preventing cooking failure (burning, loss of juices) while maximizing the smoky flavor, which is an advantage of briquette grilling.

[0038] The central heating section (200) is positioned to occupy the central area where the heat of the briquette fire is most strongly concentrated within the total surface area of ​​the grill plate body (100), and is formed as a completely closed surface with no gaps or holes penetrating from the upper surface to the lower surface. This is intended to fundamentally block a large amount of oil generated when grilling high-fat ingredients such as pork belly from falling directly onto the briquette fire, thereby physically blocking the problem of soot and harmful smoke generated from the incomplete combustion of oil adhering to the ingredients. Additionally, as mentioned in the attached video, the central heating section (200) has a flat or slightly raised center structure to induce the oil to flow naturally outward without accumulating.

[0039] The rim discharge section (300) is arranged to surround the outer periphery of the central heating section (200), and a plurality of elongated slits arranged radially or at regular intervals are formed through it so that oil flowing down the surface of the central heating section (200) can pass through and fall downward. In particular, as can be seen in the attached video and photos (Figs. 1 and 4), the slits of the rim discharge section (300) are designed with expanded length and width compared to existing products, thereby preventing clogging where high-viscosity oil or carbonized residue gets stuck between the slits and obstructs discharge. Through this, the oil quickly passes through the slits and falls vertically to the outer edge of the burner, that is, to the water tray area where there is no charcoal fire, thereby providing a pleasant grilling environment that minimizes smoke generation.

[0040] A cast iron plate (10) for briquette fire according to one embodiment of the present invention having the configuration described above has the effect of preventing oil from falling into the fire by blocking the central part where the direct heat of the briquette fire is strongest, while simultaneously providing a smoking effect using conductive heat, and by opening the edge part where the heat is relatively weak to supply convective heat and simultaneously discharge oil to a safe area, thereby preserving the unique smoky flavor of briquette grilling while drastically improving the chronic disadvantage of smoke and soot generation.

[0042] A cast iron plate (10) for briquette fire according to one embodiment of the present invention having the configuration as described above may further include a handle portion (400).

[0043] As shown in the attached photograph, the handle portion (400) is integrally formed and protrudes from both edges of the grill plate body (100) using the same casting material as the grill plate body (100). This provides a mounting space where the user can safely grip the hot grill plate using tools such as tongs or a lifter when replacing or transporting it. Additionally, a brand logo or identification phrase (e.g., text in the photograph) is formed in relief or intaglio on the upper surface of the handle portion (400) during casting, thereby enhancing the aesthetic appeal of the product and serving the function of representing the brand identity.

[0044] A cast iron plate (10) for briquette fire according to one embodiment of the present invention having the configuration described above can safely and quickly move a heavy cast iron plate, thereby increasing the convenience of replacing the plate in a commercial store, and has the effect of securing excellent structural durability without separate welding or joining parts through an integrated casting method.

[0046] FIG. 2 is a drawing showing a cast iron griddle for briquette fire according to another embodiment of the present invention.

[0047] Referring to FIG. 2, a cast iron grill plate (20) for briquette fire according to another embodiment of the present invention includes a grill plate body (100), a central heating part (200), a rim discharge part (300), a handle part (400), and a multi-functional grill plate holder (500).

[0048] Here, the grill plate body (100), central heating part (200), edge discharge part (300), and handle part (400) are identical to the components of FIG. 1 or FIG. 2, so their descriptions are omitted to avoid duplication of descriptions.

[0049] The multi-functional grill plate holder (500) is fixedly installed on the upper edge of the opening of a briquette stove or gas burner and serves as a base to stably support the lower edge of the grill plate body (100). At the same time, it prevents food ingredients from burning only at specific locations by rotating the grill plate body (100) 360 degrees horizontally through a driving means provided inside. In addition, the multi-functional grill plate holder (500) goes beyond a simple support function and also functions as an air control system that actively controls the heat by forcibly spraying or blocking external air toward the briquette fire.

[0050] A cast iron grill plate (20) for briquette fire according to another embodiment of the present invention having the configuration described above has the effect of maximizing convenience and ensuring uniform cooking quality by replacing the inconvenience of the user having to manually rotate the grill plate or fan it to control the heat during the process of grilling meat with an automated system.

[0052] Figure 3 is a drawing showing the detailed configuration of the multi-functional grill holder of Figure 2.

[0053] Referring to FIG. 3, the multifunctional grill plate holder (500) includes a base frame (510), a rotary guide member (520), a frame drive motor (530), an external air supply tank (540), an external air flow channel (550), a blower nozzle tube (560), a nozzle exposure groove (570), a wind direction angle adjustment unit (580), and a grill plate lifting drive unit (590).

[0054] The base frame (510) is formed in the shape of a hollow circular ring and is firmly connected to the uppermost edge of the burner, forming the frame of the entire device.

[0055] The rotation guide member (520) is a circular ring member that is rotatably installed on the upper side of the base frame (510) by engaging with a bearing or rail, and the grill plate body (100) is seated on its upper surface, and gear teeth are formed on its outer surface to receive power.

[0056] The frame drive motor (530) is embedded or attached to one side of the base frame (510), and is geared with the rotation guide member (520) in a lowered state while in close contact with the base frame (510) to rotate the rotation guide member (520) at a low speed, thereby rotating the grill plate body (100).

[0057] The external air supply tank (540) and the external air flow channel (550) are a tank connected to an external blower, etc., to receive high-pressure air, and a flow path formed so that this air circulates throughout the inside of the base frame (510). In addition to the function of transporting air, this provides an air-cooling effect that prevents the frame and internal parts from overheating from the high heat of the briquette fire as cold external air flows through the inside of the base frame (510).

[0058] The blower nozzle tube (560) and nozzle exposure groove (570) are tube-shaped nozzles that are arranged radially along the inner side of the base frame (510) to spray air from the external air flow channel (550) to the center or periphery of the briquette fire, and grooves formed on the inner surface of the frame so that the end of the nozzle can come out of the frame and face the combustion chamber.

[0059] The wind direction angle adjustment unit (580) and the grill plate lifting drive unit (590) are configured to adjust the vertical angle of the blower nozzle tube (560) and the height of the rotation guide member (520).

[0060] A multi-functional grill plate holder (500) according to one embodiment of the present invention having the configuration described above has the effect of slimming the structure by integrally supplying air for the rotation of the grill plate and the control of heat within a single module, and securing durability through a self-cooling structure using airflow.

[0062] A multi-functional grill plate holder (500) having the configuration described above includes a spiral cooling jacket, a heat exchange circulation structure, and a center of gravity deflection type opening and closing flap.

[0063] The spiral cooling jacket and heat exchange circulation structure is a structure in which air injection lines are arranged spirally to surround the outer surface of a heating element, such as a frame drive motor (530) and a ring drive motor (583). Cold outside air first passes around the motor and absorbs heat from the motor to cool the motor, and in this process, the temperature of the air itself rises and becomes preheated. By supplying this heated air to the blower nozzle tube (560), the phenomenon of the heat temporarily decreasing when cold air comes into contact with the briquette is prevented, and combustion efficiency is maximized.

[0064] The center-of-gravity deflection type opening / closing flap is a heat-resistant metal cover hinged to the end outlet of the blower nozzle tube (560), designed so that the center of gravity is located below the hinge axis, so that it always remains closed by gravity without the need for a separate spring or power. Therefore, it prevents oil or ash scattered when grilling meat from entering the nozzle hole. Since it opens only when blowing begins and the internal air pressure overcomes the weight of the flap, it fundamentally prevents the nozzle from clogging.

[0065] The heat exchange circulation structure and center of gravity deflection type opening and closing flap according to one embodiment of the present invention, having the configuration described above, have the effect of increasing energy efficiency by recycling discarded waste heat and extending the lifespan of the motor, and significantly reducing maintenance costs by solving nozzle clogging failures caused by oil stains solely through a mechanical structure.

[0067] Referring to FIG. 3, the wind direction angle adjustment unit (580) includes a rotary drive ring (581), a tilting cam (582), and a ring drive motor (583).

[0068] The rotary drive ring (581) is a ring-shaped member that is rotatably seated along the inner bottom surface of the base frame (510) and is located below the rear end of the blower nozzle tubes (560).

[0069] The tilting cam (582) is formed to protrude along the upper surface of the rotary drive ring (581) at intervals equal to the number of blower nozzle tubes (560), and is formed in a wedge shape having a constant angle of inclination. When the rotary drive ring (581) rotates, the tilting cam (582) digs into or comes out under the rear end of the blower nozzle tube (560), and accordingly, the angle of the front end (spray port) of the blower nozzle tube (560), which is fixed by a hinge, changes up and down by the lever principle.

[0070] The ring drive motor (583) controls the position of the tilting cam (582) by rotating the rotary drive ring (581) slightly in the forward or reverse direction, thereby controlling the injection angle of all nozzles collectively.

[0071] The wind direction angle control unit (580) according to one embodiment of the present invention having the configuration described above enables fine control of heat, such as rapidly increasing the heat by concentrating the air sprayed into the center of the briquette according to the combustion state of the briquette, or maintaining a gentle heat by spreading the air widely to the periphery.

[0073] FIG. 4 is a drawing showing a grill plate lifting drive unit according to the present invention.

[0074] Referring to FIG. 4, the grill plate lifting drive unit (590) includes a foldable link (591), a lifting drive motor (592), and a lifting cam (593). Additionally, the present embodiment may be constructed to further include a control unit (not shown) and a sensor module (not shown) for precisely controlling the mechanical components.

[0075] First, looking at the mechanical configuration, the foldable link (591) is positioned in the gap between the base frame (510) and the rotation guide member (520) and consists of a scissor-structured link connected in an 'X' shape or a multi-joint shape. This guides the rotation guide member (520) to move stably only in the vertical direction (Z-axis) while maintaining a horizontal state when rising or falling, and prevents the member from deviating from the path when rising.

[0076] A plurality of lifting drive motors (592) are arranged on the upper part of the base frame (510), and a lifting cam (593) having an elliptical or eccentric shape is axially coupled to the drive shaft. When the lifting drive motor (592) is driven, the lifting cam (593) rotates and physically pushes up the bottom surface of the rotation guide member (520). At this time, the plurality of motors are synchronized by the control unit and operate to lift the heavy cast iron plate horizontally without tilting.

[0077] According to another embodiment of the present invention, the grill plate lifting drive unit (590) is configured to provide various convenience modes through a control unit.

[0078] First is the 'Height Adjustment Mode'. Unlike a gas roaster, a briquette stove has the disadvantage that it is difficult to finely adjust the heat. To solve this, the control unit controls the rotation angle of the lifting drive motor (592) according to the user's input to adjust the height of the grill plate. For example, when strong heat is needed, the lifting cam (593) is laid horizontally to bring the grill plate closer to the heat source, and when weak heat is needed, the lifting cam (593) is set vertically to move the grill plate away from the heat source, thereby adjusting the intensity of the radiant heat through the physical distance from the heat source.

[0079] Second is the 'Ventilation Mode'. When excessive smoke is generated during grilling, the control unit controls the grill plate lifting drive unit (590) to slightly lift the grill plate body (100) from the base frame (510) by a predetermined gap (e.g., 5mm to 10mm). External air is introduced through the gap thus formed, and at the same time, the internal smoke is guided to smoothly escape toward the exhaust duct (not shown), thereby providing a pleasant cooking environment.

[0080] Third, there is the 'Grill Plate Replacement and Maintenance Mode'. When a signal to replace the grill plate is input, the control unit rotates the lifting cam (593) to the maximum height to create maximum separation between the base frame (510) and the rotating guide member (520). By securing sufficient clearance for tools such as a worker's fingers or tongs to enter, it helps the worker safely and easily grasp and replace the edge of the hot grill plate.

[0081] Fourth, there is a 'sensor-based safety control mode'. A temperature sensor (not shown) may be provided around the grill plate, and the control unit automatically operates a lifting drive motor (592) to raise the grill plate when the detected temperature exceeds a set threshold (e.g., the temperature at which meat begins to burn), thereby preventing overheating and preventing damage to the food ingredients.

[0082] The grill plate lifting drive unit (590) according to one embodiment of the present invention having the configuration described above has the effect of implementing an active grilling system that goes beyond simply supporting the grill plate to consider physical control of briquette heat, increased exhaust efficiency, and safety of the operator.

[0083] In addition, the grill plate lifting drive unit (590) according to one embodiment of the present invention having the configuration described above performs heat control according to the distance from the heat source by adjusting the height of the grill plate, and also provides convenience by lifting the grill plate to form a gap space between it and the base frame (510) to facilitate smoke discharge or secure a space for the worker's fingers to enter when replacing the grill plate.

[0085] The embodiments described above are for illustrative purposes only, and those skilled in the art will understand that the embodiments described above can be easily modified into other specific forms without altering the technical concept or essential features of the embodiments described above. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0087] The scope of protection sought through this specification is defined by the claims set forth below rather than by the detailed description above, and should be interpreted to include all modifications or variations derived from the meaning and scope of the claims and the concept of equivalents. Explanation of the symbols

[0089] 10, 20: Cast iron grill plate for briquette fire 100: Grill plate body 200: Central heating section 300: Edge discharge section 400: Handle section 500: Multifunctional grill plate holder

Claims

Claim 1 A grill plate body manufactured by a casting method, formed in the shape of a disc having a predetermined thickness and diameter and mounted on a burner on which a heat source is mounted; a central heating part formed to occupy the central area of ​​the grill plate body and having a closed surface without a void penetrating the upper and lower parts, thereby physically blocking oil generated from food ingredients during cooking from falling directly onto the lower combustion surface and causing soot to form; and a rim discharge part formed by penetrating a plurality of elongated slits arranged radially or at regular intervals along the outer periphery of the central heating part, which allows oil flowing along the surface of the central heating part to pass through and induce it to fall into a water receiving area located on the outer edge of the burner. A multi-functional grill plate holder installed along the inlet rim of a burner to support the lower rim surface of the grill plate body and guide horizontal rotation, and controls the heat by spraying external air toward the heat source; wherein the multi-functional grill plate holder comprises: a base frame formed in a circular ring shape and installed along the inlet rim of the burner; a rotation guide member formed in a circular ring shape and connected to the upper side of the base frame so as to be rotatable to support the grill plate body, and which rotates the grill plate body as it is driven; a frame drive motor installed on the base frame and which is driven only when the rotation guide member is in close contact with the base frame to rotate the rotation guide member; an external air supply tank that supplies external air at high pressure to the base frame; an external air flow channel that forms a flow path along the inner side of the base frame for the air supplied from the external air supply tank to flow through; and a plurality of blower nozzle tubes arranged radially at regular intervals along the inner side of the base frame and spraying high-pressure air delivered through the external air flow channel toward the heat source.A cast iron griddle for briquette fire, comprising: a nozzle exposure groove formed extending along the inner surface of the base frame so that each front end of the blower nozzle tube that sprays air is exposed; a wind direction angle adjustment unit installed along the inner side of the base frame to support each rear end of the blower nozzle tube and to lift the rear end of the blower nozzle tube to adjust the placement angle of the blower nozzle tube and thereby adjust the direction of the sprayed air; and a griddle lifting drive unit installed between the base frame and the rotating guide member, which lifts the rotating guide member to a parallel state or to a specific position only to adjust the placement position or angle of the griddle body, while simultaneously inducing the discharge of smoke generated during combustion through the gap between the base frame and the rotating guide member. Claim 2 In claim 1, the main body of the grill plate has a thickness of 150 mm to gently receive the strong heat of the briquette fire and maintain a high temperature for a long time so that the outside of the food ingredients is not burned and the inside is cooked, and includes a micro-pore structure formed by a casting method on its surface, wherein the pore structure is configured to receive the radiant heat of the briquette fire and, at the same time, temporarily retain fat and meat juices discharged from the food ingredients and re-transmit them to the food ingredients along with the heat to preserve the smoky aroma and flavor, a cast grill plate for briquette fire. Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete

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