A large-capacity sweet potato roasting machine

Abstract

The present invention relates to a large-capacity sweet potato roaster capable of producing large quantities of roasted sweet potatoes. A plurality of roasting boxes (20) are configured to be stored in a row in the left-right direction on the upper part of the front and rear walls of the main body (10), and since the roasting boxes (20) are in the form of drawers with open top surfaces, the sweet potatoes are exposed to the hot air circulating in the internal space of the main body (10) and are cooked evenly throughout. A door (40) and an opening (12) for installing a burner are configured so that firewood or LPG can be selected and used as a heat source.

Description

Technology Field

[0001] The present invention relates to a large-capacity sweet potato roaster capable of producing large quantities of roasted sweet potatoes.

[0002] A plurality of roasting boxes (20) are configured to be stored in a row in the left-right direction on the upper part of the front and rear walls of the main body (10), and since the roasting boxes (20) are in the form of drawers with open top surfaces, the sweet potatoes are exposed to the hot air circulating in the internal space of the main body (10) and are cooked evenly throughout.

[0003] A door (40) and an opening (12) for installing a burner are configured so that firewood or LPG can be selected and used as a heat source. Background Technology

[0005] The present invention relates to a large-capacity sweet potato roaster.

[0006] As shown in

[0004] to

[0006] , Claim 1, and FIG. 3, the prior art Registered Utility Model Publication No. 20-0372846, 'Sweet Potato Roaster', has a heating cylinder (20) with a sealed outer surface, and a support bar is installed inside the cylinder with a diameter smaller than that of the heating cylinder, and the sweet potato is placed on the support bar so that it does not burn by coming into direct contact with the heating cylinder. This provides a sweet potato roaster that prevents the outer surface of the sweet potato from burning or charring even without frequently turning the sweet potato over.

[0007] The above prior art is configured such that a plurality of heating cylinders (20) are stacked on top of firewood (40) as shown in FIGS. 1 and 2. To mass-produce roasted sweet potatoes, the number of heating cylinders (20) must be increased to tens of units. Since the heating cylinders (20) in the bottom row closest to the firewood (40) will cook quickly and the heating cylinders (20) in the top row furthest from the firewood (40) will cook slowly, it appears to be a design suitable for configuring fewer than 10 heating cylinders (20).

[0008] In addition, although not mentioned in the prior art, in order to put sweet potatoes into or take them out of a sealed heating cylinder, the support must be separated, but this process is cumbersome and dangerous to work in while hot, so it is expected that one must wait until the heating cylinder cools down.

[0009] Meanwhile, with the recent development of grocery delivery services, roasted sweet potatoes are being sold individually frozen in online shopping sites and convenience stores. Thanks to fast delivery, we have entered an era where roasted sweet potatoes, which typically have a relatively short shelf life, can be frozen to extend their shelf life and then thawed at home using an air fryer or oven to enjoy. Originally, roasted sweet potatoes were a street food sold during the winter by setting up roasters near subway stations or busy streets; however, sales volume was limited because it was difficult for consumers to go out in the cold weather to purchase them. Nevertheless, as they evolved into a delivery food, there was a need to mass-produce and sell roasted sweet potatoes nationwide.

[0010] Although the above prior art has the advantage of preventing the outer surface of the sweet potato from burning or charring even if the sweet potato is not turned over frequently, it has the problem of not being suitable for the industry requiring mass production because it does not consider configuring dozens of heating cylinders (20). Prior art literature

[0012] Registered Model Publication No. 20-0372846 The problem to be solved

[0013] The present invention aims to solve the above problem by providing a large-capacity sweet potato roaster that mass-produces roasted sweet potatoes by configuring about 40 to 80 roasting boxes (20) that accommodate sweet potatoes. means of solving the problem

[0015] To achieve the above purpose, the large-capacity sweet potato roaster of the present invention comprises a main body (10) that heats an internal space with firewood (51) or LPG, an exhaust chimney (15) that discharges exhaust gas inside the main body (10), height-adjustable legs (30) that can adjust the height of the main body (10), a plurality of roasting boxes (20) that are stored in a row in the left-right direction on the upper part of the front and rear walls of the main body (10), a door opening (11) formed on the front and left-right walls of the main body (10), a door (40) that opens and closes the door opening (11), a locking device (41) of the door (40), a burner regulator (42) configured on the door (40), a burner installation opening (12) formed at the bottom of the rear wall of the main body (10), an opening cover (13) that opens and closes the burner installation opening (12), and the burner installation It includes an LPG burner (60) installed on the inner floor of the main body (10) through an opening (12), a hose (61) and an LPG container (62) that supply gas to the LPG burner (60), and a hose installation hook (14) that fixes the hose (61) to the main body (10).

[0016] A stone (22), such as a maifan stone, is placed on the bottom of the roasting box (20), and sweet potatoes are placed on top of it to minimize the surface area in contact with the stone so that the outer skin of the sweet potatoes does not burn and is roasted by emitting far-infrared rays. Effects of the invention

[0018] The large-capacity sweet potato roaster of the present invention arranges a plurality of roasting boxes (20) in a row in the left-right direction, so that all roasting boxes (20) are located at the same height from the firewood (51) or LPG burner (60), so there is almost no temperature difference, and all roasted sweet potatoes are roasted uniformly during mass production.

[0019] A stone (22) is placed on the bottom of the roasting box (20), and a sweet potato is placed on top of it to minimize the surface area in contact with the stone, so that the outer skin of the sweet potato hardly burns. The stone (22) emits far-infrared rays when heated, such as maifan stone, and the far-infrared rays penetrate into the outer skin of the sweet potato, allowing the inside to cook better. Brief explanation of the drawing

[0021] FIGS. 1 to 3 are a perspective view, a front view, and a rear view of the large-capacity sweet potato roaster of the present invention. FIG. 4 is a partial perspective view of the roasting box (20) of the present invention in an open state. FIG. 5 is a right-side view showing the burning of firewood (51) and a perspective view showing the opening of the door (40) and the removal of the remaining burnt ash with a pusher (50). FIG. 6 is a rear view and a partial enlarged view showing the configuration when LPG is used instead of firewood (51). Specific details for implementing the invention

[0022] The present invention will be described in detail below with reference to the drawings.

[0023] FIGS. 1 to 3 are perspective, front, and rear views of the large-capacity sweet potato roaster of the present invention, FIG. 4 is a partial perspective view showing the roasting box (20) of the present invention opened, FIG. 5 is a right side view showing the burning of firewood (51) and a perspective view showing the door (40) being opened and the remaining burnt ash being removed with a pusher (50), FIG. 6 is a rear perspective view and a partial enlarged view showing the configuration when LPG is used instead of firewood (51).

[0024] The structure and operation of the present invention will be explained with reference to FIGS. 1 to 6.

[0025] The large-capacity sweet potato roaster of the present invention heats the internal space of the main body (10) in the same way as the prior art, and the heat source can be selected from firewood (51) or LPG.

[0026] At the upper center of the main body (10), there is an exhaust chimney (15) that discharges exhaust gas generated from the burning of firewood (51) or LPG, and it is desirable to further extend the flue (not shown) to discharge the exhaust gas to the outside, far from the installation location.

[0027] Height-adjustable legs (30) are provided at the four corners of the main body (10), so that the main body (10) can be adjusted to be level when the floor is uneven.

[0028] A number of grilling boxes (20) are stored in a row in the left-right direction on the upper part of the front and rear walls of the main body (10). In the embodiment of the present invention, a total of 50 grilling boxes (20) are shown, with 25 on the front and 25 on the rear, but since the left-right length of the main body (10) can be increased or decreased depending on the number of grilling boxes (20), it is easy to change the design to 40 to 80 as needed.

[0029] As shown in FIG. 4, the roasting box (20) is opened and closed by sliding it with a handle (21), and since it is in the form of a drawer with an open top surface, the sweet potatoes are exposed to the hot air circulating in the internal space of the main body (10) and are cooked evenly throughout. A stone (22), such as a maifan stone, is placed on the bottom of the roasting box (20), and the sweet potatoes are placed on top of it. Each stone (22) is suitable for a small size of about 3 to 6 cm, and since the surface is uneven, the surface area in contact with the stone is minimized, so the outer skin of the sweet potatoes hardly burns. However, since it is a roasted sweet potato, a slightly burnt one does not pose a significant problem to its marketability, and in fact, commercially available frozen packaged roasted sweet potatoes are sold with one side burned or charred.

[0030] When the maifan stone is heated, far-infrared rays are emitted, and the far-infrared rays penetrate deep into the sweet potato, making it cook better. If necessary, other ingredients such as dried fish or pork belly can be placed in the grilling box (20) in addition to sweet potatoes and grilled.

[0031] As shown in FIG. 5, door openings (11) are formed on the front and left and right walls of the main body (10). The door openings (11) are for putting firewood (51) into the interior space or for discharging the remaining ash from burning. When using LPG instead of firewood, the door openings (11) can be usefully utilized when maintaining the LPG burner (60) installed in the interior space.

[0032] The above door opening (11) is opened and closed by the door (40).

[0033] As shown in FIG. 4, there is a locking device (41) on one side of the door (40). When opening the door (40), the locking device (41) is released and the handle (43) is opened, and when closing the door (40), the locking device (41) is locked so that it cannot be opened.

[0034] At the bottom of the door (40), there is a firebox regulator (42) that slides left and right to increase or decrease the size of the air hole, thereby controlling the amount of air flowing into the main body (10). If the air inside the main body (10) becomes stagnant, exhaust gas may flow back, which is harmful to health if inhaled by a person. Therefore, the firebox regulator (42) is opened further to increase the amount of incoming air so that the exhaust gas can escape through the exhaust chimney (15). However, if too much escapes, it takes a long time to roast sweet potatoes due to heat loss and fuel is wasted, so it is desirable to keep it open just enough so that the exhaust gas does not flow back. Also, when firewood (51) is ignited and burns weakly at the beginning, opening the firebox regulator (42) can supply more oxygen and increase the heat output.

[0035] In addition, a thermal thermometer (70) that displays the internal temperature can be configured as shown in Fig. 4.

[0036] As shown in FIG. 5, the door (40) is opened, firewood (51) is loaded into the internal space of the main body (10), and a fire is lit to heat the roasting box (20) and produce roasted sweet potatoes. When all the firewood (51) has burned to ash, a long squeegee (50) is inserted into the door opening (11) to scrape out the ash and clean it, and new firewood (51) is loaded to prepare for the next production.

[0037] If LPG is used as fuel instead of firewood (51), it can be configured by installing an LPG burner (60) as shown in Fig. 6.

[0038] An LPG burner (60) is installed on the inner floor of the main body (10) through a burner installation opening (12) formed at the bottom of the rear wall of the main body (10), and a hose (61) supplying gas from an LPG container (62) is connected to the LPG burner (60). A hose installation hook (14) is provided to secure the hose (61) to the main body (10) so that it does not sag. The hose (61) may be replaced with a metal pipe if necessary.

[0039] There is an opening cover (13) so that if the LPG burner (60) is not installed, the opening (12) for installing the burner can be closed.

[0040] As explained above, the large-capacity sweet potato roaster of the present invention arranges a plurality of roasting boxes (20) in a row in the left-right direction, so that all roasting boxes (20) are located at the same height from the firewood (51) or LPG burner (60), so there is almost no temperature difference, and all roasted sweet potatoes are roasted uniformly during mass production.

[0041] A plurality of roasting boxes (20) are configured to be stored in a row in the left-right direction on the upper part of the front and rear walls of the main body (10), and since the roasting boxes (20) are in the form of drawers with open top surfaces, the sweet potatoes are exposed to the hot air circulating in the internal space of the main body (10) and are cooked evenly throughout.

[0042] Since the left and right lengths of the main body (10) can be increased or decreased depending on the number of roasting boxes (20), it is easy to change the design to 40 to 80 as needed.

[0043] A stone (22) is placed on the bottom of the roasting box (20), and a sweet potato is placed on top of it to minimize the surface area in contact with the stone, so that the outer skin of the sweet potato hardly burns. The stone (22) emits far-infrared rays, such as maifan stone, and the far-infrared rays penetrate into the outer skin of the sweet potato, allowing the inside to cook better. Explanation of the symbols

[0045] 10: Main body 11: Door opening 12: Opening for burner installation 13: Opening cover 14: Hose mounting hook 15: Exhaust chimney 20: Roasting box 21: Handle 22: Stone 30: Height-adjustable legs 40: Door 41: Lock 42: Burner regulator 43: Handle 50: Rolling pin 51: Firewood 60: LPG burner 61: Hose 62: LPG cylinder 70: Temperature gauge

Claims

Claim 1 A large-capacity sweet potato roaster characterized by comprising: a main body (10) that heats an internal space using firewood (51) and LPG (60) as optional heat sources; height-adjustable legs (30) that can adjust the height of the main body (10); a plurality of roasting boxes (20) that are stored in a row in the left and right directions on the upper part of the front and rear walls of the main body (10); a door opening (11) formed on the front and left walls of the main body (10) to store firewood (51) and discharge ash; a door (40) that opens and closes the door opening (11); a fire control device (42) configured on the door (40); a burner installation opening (12) formed on the lower part of the rear wall of the main body (10); and an LPG burner (60) installed on the inner floor of the main body (10) through the burner installation opening (12). Claim 2 A large-capacity sweet potato roaster characterized in that, in the first paragraph, the roasting box (20) is in the form of a drawer with an open top surface, and a stone (22) such as maifan stone is laid on the bottom of the roasting box (20) and a sweet potato is placed on top of it to roast. Claim 3 A large-capacity sweet potato roaster characterized in that, in claim 1 or 2, the roasting box (20) is opened and closed by sliding the handle (21) and is in the form of a drawer with an open top surface, so the sweet potatoes are exposed to hot air circulating in the internal space of the main body (10) and are cooked evenly throughout, and a stone (22) such as maifan stone is laid on the bottom of the roasting box (20) and the sweet potatoes are placed on top of it to minimize the surface area in contact with the stone so that the outer skin of the sweet potatoes is almost not burned and is roasted by emitting far-infrared rays.

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