Frying and baking machine

Abstract

The frying and baking machine comprises a cooking cavity formed by covering an upper baking tray assembly and a lower baking tray assembly, a water storage cavity for storing liquid and a steam channel communicated with the water storage cavity and used for conveying steam to the cooking cavity are formed in the upper baking tray assembly, and the upper baking tray assembly comprises an upper baking tray, an upper cover and an upper heating pipe arranged on the upper baking tray; the cooking cavity, the water storage cavity and the steam channel are jointly heated by the upper heating pipe, a steam cover is arranged on the frying and baking machine and covers the upper baking tray assembly, a water storage cavity is defined by the outer wall of the steam cover and extends into the water storage cavity, and water leakage holes and vent holes are formed in the axial direction of the steam cover at intervals; liquid in the water storage cavity enters the water storage cavity through the water leakage holes, and the air holes are used for balancing the pressure intensity of the water storage cavity and the water storage cavity. According to the frying and baking machine, by forming the water leakage holes and the air holes, part of liquid in the water storage cavity can flow into the water storage cavity, and the upper heating pipe heats the liquid in the water storage cavity rapidly to generate high-heat water vapor.

Description

Technical Field

[0001] The present application relates to the field of small household appliances, and in particular to a frying and grilling machine. Background Art

[0002] The grilling machine usually places food on a grilling pan and heats the grilling pan through a heating tube to achieve grilling and cooking of the food. However, due to the high firepower of the heating tube, the upper grilling pan assembly and the lower grilling pan assembly are covered to form a relatively sealed cooking chamber. Thus, when the grilling machine is covered to cook food, a dry and high temperature environment is formed in the cooking chamber. The food cooked in this environment will be particularly dry and hard, and difficult to chew. In addition, some food will become woody due to excessive loss of moisture, and the taste of the food will deteriorate.

[0003] In the prior art, in order to increase the water vapor inside the cooking cavity and thus change the dry environment inside the cooking cavity, water vapor is transported into the cooking cavity so that a high-humidity and high-temperature environment is formed inside the cooking cavity. For example, in Chinese utility model patent CN201404105Y, a connecting pipe is provided on the upper baking tray assembly, one end of the connecting pipe is connected to the water tank, and the other end is connected to the cooking cavity. The upper heating pipe heats the water tank once to generate water vapor, and an electric heating pipe is provided at one end of the connecting pipe close to the cooking cavity. The electric heating pipe performs secondary heating on the water vapor to increase the temperature of the water vapor entering the cooking cavity. Because the water tank has a large volume and stores a large amount of liquid, when the heating pipe heats the entire water tank, the volume of the liquid is large and needs to absorb a large amount of heat to increase the temperature of the liquid in the water tank, thereby generating water vapor. The water vapor generated in this way takes a long time to generate water vapor, and the heat of the water vapor generated is low. After the upper heating tube heats the steam cup, the heat of the water vapor entering the cooking cavity is low. Although the water vapor can quickly fill the entire cooking cavity, it cannot effectively reach a high temperature in the cooking cavity because of the low heat of the water vapor. When the heat of the water vapor in the cooking cavity is low, the water vapor filling the cooking cavity cannot keep the food in a high temperature environment, which will cause the food to be cooked in a low temperature and high humidity environment. The water vapor with a low heat cannot quickly and effectively exchange heat with the food, so it is necessary to use the electric heating tube to reheat the water vapor generated later to increase the temperature of the water vapor.

[0004] In order to increase the heat generated by water vapor, the water vapor generated when the liquid is heated for the first time can reach a higher heat, reducing the secondary heating of the water vapor. For example, in the Chinese utility model patent CN209694983U, a steam cup is provided on the upper baking tray assembly, and the upper heating tube heats the steam cup to generate water vapor. The water vapor in the steam cup is transported to the cooking cavity through the connecting tube, thereby increasing the humidity in the cooking cavity. By extending the steam cup into the interior of the upper baking tray, the steam cup can be closer to the upper heating tube, thereby reducing the heat loss when the upper heating tube heats the steam cup; at the same time, the steam cup is set to be detachable, reducing the volume of the steam cup, thereby improving the heat exchange between the upper heating tube and the steam cup. However, it is obvious that in the process of heating the steam cup, the upper heating tube is still heating the liquid in the entire steam cup. Only when all the liquid in the steam cup reaches a certain temperature, water vapor will be generated in the steam cup. In this way, when the cooking time is certain, the time that water vapor exists in the cooking cavity will become shorter. In this way, since the food is not in a high temperature and high humidity environment for a long time, the water vapor will only enter 1 / 2 to 2 / 3 of the food. Even for some foods with rough surfaces, it is difficult for water vapor to enter the food through the surface, so that the water vapor can only wet the surface of the food, and cannot completely immerse the entire food, resulting in a deviation in taste. Summary of the invention

[0005] In order to solve the above technical problems, the present application discloses a frying and grilling machine, in which the liquid in the water storage chamber enters the water storage chamber, and there is only a small amount of liquid in the water storage chamber. By heating the liquid in the water storage chamber, water vapor can be generated faster in the water storage chamber, and the water vapor entering the cooking chamber has a higher heat.

[0006] The present application discloses a grilling machine, comprising an upper grilling plate assembly and a lower grilling plate assembly, wherein the upper grilling plate assembly and the lower grilling plate assembly are covered to form a cooking cavity, the upper grilling plate assembly is provided with a water storage cavity for storing liquid, and a steam channel connected with the water storage cavity for conveying steam to the cooking cavity, the upper grilling plate assembly comprises an upper grilling plate and an upper cover, and an upper heating tube arranged on the upper grilling plate, the upper heating tube heats the cooking cavity, the water storage cavity and the steam channel together, the grilling machine is provided with a steam cover, the steam cover is covered on the upper grilling plate assembly, the outer wall of the steam cover encloses to form a water storage cavity and extends into the water storage cavity, a water leakage hole and a vent hole are arranged at intervals along the axial direction of the steam cover, the height of the water leakage hole is lower than the vent hole, the liquid in the water storage cavity enters the water storage cavity through the water leakage hole, and the vent hole is used to balance the pressure of the water storage cavity and the water storage cavity.

[0007] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0008] Optionally, the axis of the steam cover is parallel to the axis of the grilling machine.

[0009] Optionally, the water leakage hole is arranged on the bottom wall of the steam cover.

[0010] Optionally, the steam cover further comprises:

[0011] A steam cover having a handle for lifting the steam cover;

[0012] The steam lower cover extends in a direction close to the lower baking tray assembly and gradually contracts in this direction.

[0013] Optionally, the steam upper cover and the upper cover are rotatably buckled together, one of them is provided with a first protrusion, and the other is provided with a first groove matching with the first protrusion.

[0014] Optionally, the steam upper cover and the steam lower cover are rotatably buckled together, one of them is provided with a second protrusion, and the other is provided with a second groove matching with the second protrusion.

[0015] Optionally, the steam lower cover comprises:

[0016] A lower cover body, which is connected from top to bottom and cooperates with the steam upper cover to store liquid;

[0017] An elastic cover, wherein one end of the elastic cover is set as an open end, the open end is sleeved on the lower cover body, and the other end is set as a closed end, and the water leakage hole is opened on the closed end.

[0018] Optionally, a fastening cover is provided between the lower cover body and the elastic cover, and the fastening cover is detachably matched with the lower cover body.

[0019] Optionally, a convex column extending toward the closed end is provided at the bottom of the water storage chamber, and the convex column extends into the interior of the water storage chamber through the water leakage hole to increase the water leakage rate of the water leakage hole.

[0020] Optionally, a seal is provided between the water storage chamber, the steam channel and the upper cover.

[0021] The grilling machine of the present application can allow part of the liquid in the water storage chamber to flow into the water storage chamber by providing the water leakage hole and the air vent hole, so that the upper heating tube heats the liquid in the water storage chamber to generate high-calorie water vapor more quickly. At the same time, when the water level of the liquid in the water storage chamber drops, the liquid in the water storage chamber can be replenished in time, so that water vapor can be generated continuously for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the exploded structure of a grilling machine in one embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of a steam cover of a grilling machine in one embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of the steam lower cover of the grilling machine in one embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the exploded structure of a grilling machine in another embodiment of the present application;

[0026] Figure 5 This is a structural schematic diagram of a grilling machine in one embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the structure of a grill pan on a grilling machine in one embodiment of the present application;

[0028] Figure 7 It is a schematic diagram of the structure of the elastic cover of the grilling machine in one embodiment of the present application.

[0029] The reference numerals in the figures are described as follows:

[0030] 100. Grilling machine;

[0031] 200, upper baking tray assembly; 201, water storage chamber; 202, steam channel; 203, upper baking tray; 204, upper cover; 205, upper heating tube; 206, convex column; 207, sealing member;

[0032] 300, lower baking tray assembly;

[0033] 400, cooking chamber;

[0034] 500, steam cover; 501, water storage chamber; 502, water leakage hole; 503, air vent; 504, bottom wall; 505, steam upper cover; 506, steam lower cover; 507, handle; 508, first protrusion; 509, first groove; 511, second groove; 512, lower cover body; 513, elastic cover; 514, open end; 515, closed end; 516, fastening cover. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] The grilling machine 100 includes an upper grill assembly 200 and a lower grill assembly 300. Before cooking food, the user opens the upper grill assembly 200 and the lower grill assembly 300, places the food on the lower grill of the lower grill assembly 300 (it can also be placed on the upper grill assembly 200, which is not illustrated here), and then covers the upper grill assembly 200 and the lower grill assembly 300. The upper grill 203 and the lower grill cooperate to form a cooking cavity 400. The upper heating tube 205 and the lower heating tube are used to heat the upper grill 203 and the lower grill. The heat of the upper / lower heating tubes is transferred to the upper / lower grills, and the food is heated by the upper / lower grills.

[0039] Due to cost saving and manufacturing process limitations, the heating tubes on the existing grilling machine 100 are not evenly and densely distributed, but are mostly distributed in a special shape (such as a G shape or an Ω shape). Therefore, the heating tubes heat the lower grilling plate unevenly, and the temperature of each area on the lower grilling plate is not isothermally distributed. The grilling machine 100 cannot fully and evenly heat the food, resulting in a poor texture and taste of the food. In order to improve the adequacy of the heating tube's heating of the baking tray and change the taste of food, the prior art solves the technical problem through different technical routes: one way is to add a reflective cover between the lower baking tray and the base, and the heating tube is arranged between the reflective cover and the lower baking tray, so that the heat of the heating tube will be reflected to the lower baking tray through the reflective cover, which can not only make the heat generated by the heating tube be used more for heating the baking tray, but also make the heat of the baking tray more uniform, thereby changing the taste of food; one way is to add a steam cup on the upper baking tray 203, heat the liquid in the steam cup with the heating tube to generate water vapor, and the water vapor enters the cooking cavity 400, the food can not only obtain heat from the heated water vapor, thereby realizing rapid heating of the food, but also the water vapor can increase the humidity of the cooking cavity 400, effectively improving the dry and high temperature environment in the original cooking cavity 400 due to the excessive temperature, so that the prepared food can achieve a fluffy and tender taste.

[0040] However, when cooking food, if the time for cooking food once is fixed, the earlier the water vapor is generated, the longer the time the water vapor enters the cooking cavity 400 and contacts the food. For example, when the time for cooking food once is 5 minutes, the time for generating water vapor in the grilling machine 100 starts from the 1st minute, then the time for the water vapor to enter the cooking cavity 400 and turn the cooking cavity 400 into a high temperature and high humidity environment, thereby heating the food, is 4 minutes; if the time for generating water vapor in the grilling machine 100 starts from the 3rd minute, then the time for the water vapor to enter the cooking cavity 400 and turn the cooking cavity 400 into a high temperature and high humidity environment, thereby shortening the time for heating the food to 2 minutes. If the grilling machine 100 cannot generate steam quickly, the food cannot be kept in a high temperature and high humidity environment for a long time, which may result in the food not being fluffy and tender, and the effect of adding steam in the grilling machine 100 cannot be achieved; or for some foods with rough surfaces, if there is no heated steam to assist in heating the foods with rough surfaces, the foods with rough surfaces are not easy to cook during the cooking time, and some foods may be half-cooked or half-raw.

[0041] Furthermore, when heating more liquids at the same time, when the heat generated by the heating tube is constant, the heat absorbed by the liquid per unit volume will decrease, and the heat of the water vapor generated will be lower, so that the cooking cavity 400 cannot reach a higher temperature. When the heat of the water vapor in the cooking cavity 400 is lower, the water vapor filling the cooking cavity 400 cannot keep the food in a high temperature environment, so that the food is cooked in a low temperature and high humidity environment, and the water vapor with lower heat cannot quickly and effectively exchange heat with the food.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, a grilling machine 100 of the present application includes an upper grilling plate assembly 200 and a lower grilling plate assembly 300, the upper grilling plate assembly 200 and the lower grilling plate assembly 300 are covered to form a cooking cavity 400, a water storage cavity 201 for storing liquid is arranged on the upper grilling plate assembly 200, a steam channel 202 connected with the water storage cavity 201 for conveying steam to the cooking cavity 400, the upper grilling plate assembly 200 includes an upper grilling plate 203 and an upper cover 204, and an upper heating tube 205 arranged on the upper grilling plate 203, the upper heating tube 205 heats the cooking cavity 400 and the water storage cavity 201, and the upper grilling plate assembly 200 is provided with a plurality of heating elements, wherein ... 1 and the steam channel 202 are heated together, the grilling machine 100 is provided with a steam cover 500, the steam cover 500 is covered on the upper grilling plate assembly 200, the outer wall of the steam cover 500 encloses a water storage chamber 501 and extends into the water storage chamber 201, and leaking holes 502 and air holes 503 are arranged at intervals along the axial direction of the steam cover 500, the height of the leaking hole 502 is lower than the air hole 503, the liquid in the water storage chamber 501 enters the water storage chamber 201 through the leaking hole 502, and the air hole 503 is used to balance the pressure of the water storage chamber 501 and the water storage chamber 201.

[0043] In this embodiment, a water injection port is provided on the grilling machine 100 for injecting liquid into the water storage chamber 501, and a steam cover 500 is provided on the grilling machine. The water injection port is covered by the steam cover 500, so that the water injection port can be sealed when the liquid in the water storage chamber 201 is heated. The upper surface of the upper grill plate 203 has convex ribs extending upward, and the convex ribs surround a steam generating chamber. The steam generating chamber includes a water storage chamber 201 and a steam channel 202 with a common wall with the water storage chamber 201. The upper end of the steam channel 202 is connected to the water storage chamber 201 through the air inlet, and the lower end is connected to the cooking chamber 400. Water vapor can only overflow from the water storage chamber 201 through the air inlet position, thereby reducing the loss of water vapor. When the water storage chamber 201 is heated by the upper heating tube 205 to generate water vapor, the water vapor will gradually rise and fill the upper end of the water storage chamber 201, and then enter the steam channel 202 through the air inlet.

[0044] Because the upper heating tube 205 heats the water storage chamber 201 to generate water vapor, in order to reduce the initial time of generating water vapor, so that the grilling machine 100 can quickly generate water vapor, the amount of liquid in the water storage chamber 201 is reduced, so that the liquid in a unit volume can obtain more heat, so that water vapor can be generated faster in the water storage chamber 201. Therefore, a water leakage hole 502 is provided on the water storage chamber 501, so that the liquid in the water storage chamber 501 can enter the water storage chamber 201 through the water leakage hole 502, and the upper heating tube 205 can only heat the liquid in the water storage chamber 201.

[0045] There can be multiple water leakage holes 502 and air vents 503 . Among the multiple holes, the one with the lowest height is the water leakage hole. If there are multiple lowest holes, all of the multiple lowest holes are the water leakage holes 502 .

[0046] In order to prevent the liquid in the water storage chamber 501 from entering the water storage chamber 201 all at once, a vent hole 503 is also provided on the water storage chamber 501. Because the water storage chamber 501 is formed by the outer enclosure of the steam cover 500, the water storage chamber 501 is a relatively closed chamber. When a certain amount of liquid is added to the water storage chamber 501, the liquid will displace the gas in the water storage chamber 501, so that the inside of the water storage chamber 501 forms a relatively low pressure compared to the atmospheric pressure. When the liquid in the water storage chamber 201 has not completely submerged the leaking hole 502, and the liquid in the water storage chamber 501 has completely submerged the vent hole 503, the liquid flows out of the water storage chamber 501 from the leaking hole 502 due to gravity and enters the water storage chamber 201. At the same time, because the pressure in the water storage chamber 501 is relatively small and the pressure in the water storage chamber 201 is relatively large, the gas in the water storage chamber 201 will enter the water storage chamber 501 through the air hole 503, and because of the surface tension of the liquid in the water storage chamber 501, the liquid in the water storage chamber 501 will not flow out from the air hole 503. At this time, the gas entering the water storage chamber 501 will also exert a certain pressure on the liquid, causing the liquid to quickly flow out of the water storage chamber 501 from the leakage hole 502 and enter the water storage chamber 201. This can reduce the heating time of the upper heating tube 205 on the liquid in the water storage chamber 201.

[0047] When the liquid in the water storage chamber 201 completely covers the water leakage hole 502, and the liquid in the water storage chamber 501 completely covers the air hole 503, the liquid entering the water storage chamber 201 will generate an upward buoyancy to offset the downward gravity generated by the liquid in the water storage chamber 501, thereby preventing the liquid in the water storage chamber 501 from further flowing out; at the same time, for the air hole 503, because of the surface tension of the liquid in the water storage chamber 501, the liquid in the water storage chamber 501 will still not flow out of the air hole 503, and at this time, the amount of liquid in the water storage chamber 501 is balanced with the amount of liquid in the water storage chamber 201. The upper heating tube 205 starts to heat the liquid in the water storage chamber 201. Since the amount of liquid in the water storage chamber 201 is relatively small, water vapor will be generated in the water storage chamber 201 very quickly, so that water vapor can quickly enter the cooking chamber 400. Thus, when the time for cooking food once is fixed, the time for water vapor to be present in the cooking chamber 400 is extended, so that the food can be made fluffy and tender. At the same time, since there is relatively little liquid in the water storage chamber 201, the heat obtained by the unit volume of the liquid is also relatively high, so that the heat of the water vapor is also relatively high, so that the cooking chamber 400 can reach a high temperature and high humidity environment.

[0048] If the water storage chamber 201 cannot continuously generate water vapor, water vapor will intermittently enter the cooking chamber 400. When the cooking chamber 400 is filled with water vapor, the water vapor will start to heat the food from the surface of the food. When the surface of the food is heated, the water vapor in the cooking chamber 400 decreases because the water storage chamber 201 cannot continuously generate water vapor, so there is no heat source to heat the surface of the food. When the water storage chamber 201 generates water vapor again, the water vapor enters the cooking chamber 400 again. At this time, the surface of the food that has been heated will be heated and humidified by the water vapor again, so that the surface of the food is repeatedly heated, which will not only make the upper layer of food soft and sticky, but also make the lower layer of food unable to be effectively cooked because it does not get enough heat, resulting in different tastes of the upper and lower layers of food.

[0049] In order to solve the above problem, during the process of the upper heating tube 205 heating the liquid in the water storage chamber 201, the liquid in the water storage chamber 201 turns into water vapor, which causes the liquid level in the water storage chamber 201 to drop. When the liquid level in the water storage chamber 201 drops, the upward buoyancy generated by the liquid in the water storage chamber 201 will gradually be smaller than the downward gravity generated by the liquid in the water storage chamber 501, so that the liquid in the water storage chamber 501 will be replenished into the water storage chamber 201, so that during the process of the upper heating tube 205 heating the water storage chamber 201, a certain volume of liquid can be maintained in the water storage chamber 201, and continuous and uninterrupted water vapor can be generated, so that the cooking chamber 400 can maintain a high temperature and high humidity environment for a long time, so that the food can be heated evenly and the taste can be kept consistent.

[0050] If the steam cover 500 is tilted relative to the grill 100, when the liquid in the water storage chamber 201 covers the water leakage hole 502, because the steam cover 500 is tilted, the force generated by the liquid in the water storage chamber 201 on the water storage chamber 501 is tilted, so the buoyancy generated by the liquid in the water storage chamber 201 on the water leakage hole 502 of the water storage chamber 501 is a component of the force. The buoyancy of the liquid in the water storage chamber 201 on the water leakage hole 502 of the water storage chamber 501 in the tilted steam cover 500 is greater than that in the vertical position. The buoyancy of the liquid in the water storage chamber 201 on the water leakage hole 502 of the water storage chamber 501 is relatively small in the steam cover 500, so more liquid is needed in the water storage chamber 201 to achieve a balance between the liquid in the water storage chamber 201 and the liquid in the water storage chamber 501. When the upper heating tube 205 heats the liquid in the water storage chamber 201, the time for generating water vapor in the water storage chamber 201 will be extended because there is more liquid in the water storage chamber 201. Therefore, the axis of the steam cover 500 is parallel to the axis of the grill 100. In this way, the buoyancy generated by the liquid entering the water storage chamber 201 and the gravity of the liquid in the water storage chamber 501 are on the same axis, which can maximize the buoyancy generated by the liquid in the water storage chamber 201 to offset the gravity of the liquid in the water storage chamber 501, thereby reducing the amount of liquid in the water storage chamber 201.

[0051] As for the positions where the water leakage hole 502 and the air vent 503 are set, the water leakage hole 502 and the air vent 503 can both be set on the side wall of the steam cover 500. When the water leakage hole 502 and the air vent 503 are set on the side wall of the steam cover 500, there needs to be a height difference between the water leakage hole 502 and the air vent 503, so as to ensure that the liquid can only enter the water storage chamber 201 through the water leakage hole 502, and the air vent 503 only serves to balance the pressure between the water storage chamber 201 and the water storage chamber 501, and does not transport liquid to the water storage chamber 201. If the height of the water leakage hole 502 is set higher, the volume of liquid entering the water storage chamber 201 without passing through the water leakage hole 502 will be larger, thereby prolonging the time for water vapor to be generated in the water storage chamber 201. In order to minimize the liquid volume in the water storage chamber 201, the water leakage hole 502 is set on the bottom wall 504 of the steam cover 500. The leakage hole 502 arranged on the bottom wall 504 is located at the lowest point of the steam cover 500. In this way, when the liquid in the water storage chamber 201 rises, the first thing to be submerged is the bottom wall 504 of the steam cover 500 and the leakage hole 502 arranged on the bottom wall 504, which will quickly make the liquid in the water storage chamber 501 and the liquid in the water storage chamber 201 reach equilibrium, reducing the capacity of the liquid entering the water storage chamber 201.

[0052] Because when the upper heating tube 205 heats the water storage chamber 201, part of the heat will also be dissipated into the water storage chamber 501, preheating the liquid in the water storage chamber 501, so that the liquid in the water storage chamber 501 has a higher temperature before entering the water storage chamber 201. When the liquid with a higher temperature enters the water storage chamber 201, the upper heating tube 205 can heat the liquid in the water storage chamber 201 to generate water vapor. In order to reduce the volume of the liquid in the water storage chamber 501, so that the liquid has a higher heat when entering the water storage chamber 201, the steam cover 500 also includes: a steam upper cover 505; a handle 507 is provided for lifting the steam cover 500; and a steam lower cover 506, which extends in a direction close to the lower baking tray assembly 300 and gradually shrinks in this direction. The handle 507 provided on the steam upper cover 505 can facilitate the user to install or remove the steam cover 500 on the upper baking tray assembly 200. At the same time, when adding liquid to the water storage chamber 501, the setting of the handle 507 also facilitates the user to hold the steam cover 500 as a whole. The setting of the steam lower cover 506 gradually shrinks can reduce the overall volume of the water storage chamber 501, reduce the capacity of the liquid in the water storage chamber 501, and increase the heat of the water storage chamber 501 in the preheating stage. At the same time, the water leakage hole 502 is provided on the steam lower cover 506, and the gradually shrinking steam lower cover 506 can speed up the speed at which the liquid in the water storage chamber 501 enters the water storage chamber 201, thereby saving the time for the liquid to enter the water storage chamber 201 from the water storage chamber 501. In this embodiment, the gradually shrinking steam lower cover 506 can be a side wall of the steam lower cover 506 that is directly inclined in a "V" shape, or the side wall of the steam lower cover 506 is stepped and slowly extends downward.

[0053] If the generated water vapor cannot enter the cooking cavity 400, but overflows from the gap between the steam upper cover 505 and the upper cover 204 to the external environment, the time for the water vapor to fill the entire cooking cavity 400 is prolonged. When more water vapor is generated in the water storage cavity 201, the pressure in the water storage cavity 201 is greater than the pressure in the outside world. Even if there is a small gap between the steam upper cover 505 and the upper cover 204, the water vapor will enter the external environment from the gap due to the pressure difference. In order to prevent the water vapor from overflowing into the external environment, the steam upper cover 505 and the upper cover 204 are rotated and buckled, and one of them is provided with a first protrusion 508, and the other is provided with a first groove 509 that matches the first protrusion 508. In this way, through the cooperation of the first protrusion 508 and the first groove 509, a sealed cooperation can be formed between the steam upper cover 505 and the upper cover 204, reducing the probability of water vapor overflowing from between the steam upper cover 505 and the upper cover 204.

[0054] In order to facilitate adding liquid into the water storage chamber 501, the steam upper cover 505 and the steam lower cover 506 are rotated and buckled, one of which is provided with a second protrusion (not shown in the figure), and the other is provided with a second groove 511 that matches the second protrusion. When adding liquid into the water storage chamber 501, the steam upper cover 505 and the steam lower cover 506 are unscrewed, the steam upper cover 505 is inverted and liquid is added into the steam upper cover 505, and then the steam lower cover 506 is rotated and buckled onto the steam upper cover 505, so as to form a complete water storage chamber 501, and then the steam cover 500 is covered on the upper baking tray assembly 200, so as to complete the addition of liquid into the water storage chamber 501. At the same time, the second protrusion and the second groove 511 can prevent the water vapor generated in the water storage chamber 201 from entering the water storage chamber 501, so that the water vapor generated in the water storage chamber 201 can quickly and completely enter the cooking chamber 400.

[0055] like Figure 4 , Figure 5 As shown, in one embodiment, the steam lower cover 506 includes: a lower cover body 512, which is connected from top to bottom and cooperates with the steam upper cover 505 to store liquid; an elastic cover 513, one end of the elastic cover 513 is set as an open end 514, the open end 514 is sleeved on the lower cover body 512, and the other end is set as a closed end 515, and a water leakage hole 502 is opened on the closed end 515. The setting of the elastic cover 513 can prevent water vapor from flowing back into the water storage chamber 501, so that the water vapor can quickly enter the cooking chamber 400.

[0056] In this embodiment, in order to prevent the steam cover 500 from shaking due to the water vapor when the water vapor is generated, so that the axis of the steam cover 500 cannot be arranged parallel to the axis of the grilling machine 100, a fastening cover 516 is arranged between the lower cover body 512 and the elastic cover 513, and the fastening cover 516 is detachably matched with the lower cover body 512. The fastening cover 516 is sleeved between the lower cover body 512 and the elastic cover 513, and can play a role in stabilizing the lower cover body 512 and the elastic cover 513.

[0057] like Figure 6 , Figure 7As shown, in order to prevent the liquid in the water storage chamber 501 from flowing into the water storage chamber 201 through the leakage hole 502 when the steam cover 500 is installed, thereby affecting the capacity of the liquid in the water storage chamber 201, the aperture of the leakage hole 502 is usually set to be smaller, thereby reducing the flow rate of the liquid flowing into the water storage chamber 201. Such a setting will result in that when the liquid in the water storage chamber 501 needs to enter the water storage chamber 201, the liquid flow rate is too slow, resulting in difficulty in quickly reaching a balance between the liquid gravity in the water storage chamber 501 and the liquid buoyancy in the water storage chamber 201. In order to increase the flow rate of the liquid through the leakage hole 502 after the steam cover 500 is installed, a protrusion 206 extending toward the closed end 515 is provided at the bottom of the water storage chamber 201. The protrusion 206 extends into the interior of the water storage chamber 501 through the leakage hole 502, thereby increasing the leakage rate of the leakage hole 502. When the steam cover 500 is installed, the boss 206 contacts the closed end 515. Since the elastic cover 513 is made of silicone material with a certain elasticity, the boss 206 will block the leakage hole 502, and part of the boss 206 will extend into the water storage chamber 501, thereby expanding the area of ​​the leakage hole 502, so that the liquid in the water storage chamber 501 can enter the water storage chamber 201 faster, saving time.

[0058] In order to prevent the water vapor in the water storage chamber 201 and the steam channel 202 from escaping to the outside, a seal 207 is provided between the water storage chamber 201, the steam channel 202 and the upper cover 204. The provision of the seal 207 allows the water vapor to flow in the water storage chamber 201 and the steam channel, and then enter the cooking chamber 400, so that the cooking chamber 400 is quickly filled with water vapor.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0060] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A grilling machine, comprising an upper grilling plate assembly and a lower grilling plate assembly, wherein the upper grilling plate assembly and the lower grilling plate assembly are covered to form a cooking cavity, wherein a water storage cavity for storing liquid is arranged on the upper grilling plate assembly, and a steam channel connected with the water storage cavity for conveying steam to the cooking cavity is arranged, wherein the upper grilling plate assembly comprises an upper grilling plate and an upper cover, and an upper heating tube arranged on the upper grilling plate, wherein: The upper heating tube heats the cooking cavity, the water storage cavity and the steam channel together. The frying and grilling machine is provided with a steam cover, which is covered on the upper baking tray assembly. The outer wall of the steam cover encloses a water storage cavity and extends into the water storage cavity. A water leakage hole and an air vent are arranged at intervals along the axial direction of the steam cover. The height of the water leakage hole is lower than that of the air vent. The liquid in the water storage cavity enters the water storage cavity through the water leakage hole. The air vent is used to balance the pressure of the water storage cavity and the water storage cavity.

2. A grilling machine according to claim 1, characterized in that: The axis of the steam cover is parallel to the axis of the grilling machine.

3. A grilling machine according to claim 1, characterized in that: The water leakage hole is arranged on the bottom wall of the steam cover.

4. A grilling machine according to claim 1, characterized in that: The steam cover also includes: A steam cover having a handle for lifting the steam cover; The steam lower cover extends in a direction close to the lower baking tray assembly and gradually contracts in this direction.

5. A grilling machine according to claim 4, characterized in that: The steam upper cover and the upper cover are rotatably buckled together, one of them is provided with a first protrusion, and the other is provided with a first groove matched with the first protrusion.

6. A grilling machine according to claim 4 or 5, characterized in that: The steam upper cover and the steam lower cover are rotatably buckled together, one of which is provided with a second protrusion, and the other is provided with a second groove matched with the second protrusion.

7. The grilling machine according to claim 4, characterized in that: The steam lower cover comprises: A lower cover body, which is connected from top to bottom and cooperates with the steam upper cover to store liquid; An elastic cover, wherein one end of the elastic cover is set as an open end, the open end is sleeved on the lower cover body, and the other end is set as a closed end, and the water leakage hole is opened on the closed end.

8. The grilling machine according to claim 7, characterized in that: A fastening cover is arranged between the lower cover body and the elastic cover, and the fastening cover is detachably matched with the lower cover body.

9. The grilling machine according to claim 7, characterized in that: The bottom of the water storage cavity is provided with a convex column extending toward the closed end, and the convex column extends into the interior of the water storage cavity through the water leakage hole to increase the water leakage speed of the water leakage hole.

10. The grilling machine according to claim 1, characterized in that: A sealing member is arranged between the water storage cavity, the steam channel and the upper cover.

Images