Micro-pressure cooking appliance

Abstract

The present invention discloses a micro-pressure cooking device, which relates to the field of cooking devices. The device comprises a main body and a cover. The cover is detachably coupled to the main body. When the cover is coupled to the main body, a micro-pressure cooking chamber is formed between the cover and the main body. The main body is provided with a handle, which is provided with a water inlet connected to the cooking chamber. The handle is also provided with a reversible cover plate for opening or closing the water inlet. The cover plate is provided with a laterally movable pressure plate. The pressure plate has a first position and a second position. When the pressure plate is in the first position, the cover can be upwardly separated from the main body. When the pressure plate is in the second position, the pressure plate presses the cover to prevent the cover from upwardly separating from the main body. The present invention provides a handle for water injection on the main body, and a pressure plate is provided on the cover plate of the handle to press the cover, so that the cover and the main body remain coupled during cooking, maintaining the micro-pressure state of the cooking chamber and heating food faster.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking utensils, and in particular to a micro-pressure cooking utensil. Background Art

[0002] Micro-pressure cookers have become increasingly popular in recent years. Their relatively airtight interior maintains a pressure of 1-3 kPa, resulting in food that tastes more delicious than that cooked in ordinary cookers. Furthermore, because the operating pressure inside a micro-pressure cooker is much lower than that of a pressure cooker, it is safer to use. During cooking, the steam inside the cooker creates a micro-pressure state, allowing for faster and more even heating.

[0003] Some micro-pressure cookers exist in the related art. For example, patent CN205514070U discloses a micro-pressure heating device. This patent uses a lid extension that rotates into a buckle on the upper cover to secure the lid. While this method can generate pressure inside the pot, it has limitations and can only be used in round pots. Furthermore, the rotation requires a certain gap between the pot body and the lid, making it prone to air leakage around the edge of the lid during use. Furthermore, the lid must be opened to add water, affecting the internal pressure and heating effect of the micro-pressure cooker. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art to a certain extent. To this end, the present invention provides a micro-pressure cooking device with the advantages of good sealing effect and no air leakage.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A micro-pressure cooking device comprises a body and a cover, wherein the cover is detachably engaged with the body, and when the cover is engaged with the body, a micro-pressure cooking cavity is formed between the cover and the body. The device is characterized in that a handle is provided on the body, and the handle is provided with a water inlet connected to the cooking cavity, and the handle is also provided with a flip-up cover to open or close the water inlet, and a pressure plate that can move laterally is provided on the cover; the pressure plate has a first position and a second position, and when the pressure plate is in the first position, the cover can be separated from the body upward, and when the pressure plate is in the second position, the pressure plate presses the cover to prevent the cover from separating from the body upward.

[0007] In the present invention, the lid can be detachably attached to the main body. When the lid is attached to the main body, a relatively sealed micro-pressure cooking chamber is formed between the lid and the main body. The pressure inside the chamber can maintain 1-3 kPa, which heats food faster and more evenly, and makes the food taste more delicious. A handle is provided on the main body for holding. The handle and the main body can be integrally formed or separately provided. The user can pick up the entire micro-pressure cooking device by holding the handle. A water inlet is provided in the handle, which is connected to the cooking chamber in the main body. A water inlet channel is formed between the water inlet and the cooking chamber. Through the water inlet, the user can add water to the cooking chamber without opening the lid, thereby preventing dry-burning and other phenomena due to insufficient water in the cooking chamber.

[0008] The handle is also equipped with a reversible cover that can be flipped to open or close the water inlet. Compared to related art, the cover provided in this application can prevent dust, debris, etc. from entering the cooking chamber through the water inlet and contaminating the food, and also prevent debris from clogging the water inlet channel. For example, patent CN210783933U also discloses a steamer with a water-injection steam generator. The handle is provided with a water inlet connected to the evaporation chamber, allowing water to be poured without opening the cover at the handle. However, in this patent, the water inlet is open, which makes it easy for dust, debris, etc. to enter the water channel and the steam generator through the water inlet and cause blockage.

[0009] In addition, the cover is equipped with a laterally movable pressure plate. When in its second position, the pressure plate compresses the cover. During cooking, the cover tends to move upward due to the steam in the cooking chamber. This pressure plate maintains contact between the cover and the main body, preventing the cover from being pushed open by the steam. This maintains a slight pressure in the cooking chamber, allowing food to heat more quickly and evenly. When the pressure plate is in its first position, it no longer restricts the longitudinal movement of the cover, meaning it no longer interferes with its movement, allowing the user to separate the cover from the main body.

[0010] It should be noted that the first position of the pressure plate does not refer to a specific position, but rather refers to the position in which the pressure plate is not in contact with the cover body, that is, the first position of the pressure plate is a range of positions. Within this range of positions, the pressure plate is located within the cover body and does not extend beyond the cover body in the horizontal direction. At this time, the pressure plate does not affect the flipping of the cover body and can flip along with the cover body. Similarly, the second position of the pressure plate is not a specific position, but rather refers to the position in which the pressure plate is pressed against the cover body, that is, the second position of the pressure plate is also a range of positions. When the pressure plate moves to the second position, the pressure plate abuts against the cover body, that is, the pressure plate extends laterally relative to the cover body. When the cover body flips upward, the part of the pressure plate abutting the cover body will prevent the cover from flipping. Therefore, when the pressure plate is pressing against the cover body, the cover body cannot flip, preventing the water inlet from suddenly opening when there is pressure in the cooking appliance, causing air to leak and avoiding safety hazards.

[0011] Optionally, a sink is formed on the cover plate, a slide is provided on the side wall of the sink along the length direction, a slide groove cooperating with the slide is formed on the pressure plate, and the pressure plate switches positions through the relative movement of the slide and the slide groove. The sink is constructed as a groove formed by the inward recess of the cover plate. Preferably, slides are provided on the side wall of the sink relative to each other along the length direction. A slide groove is provided on the pressure plate that matches the shape and size of the slide. Preferably, the slide groove is provided on both sides of the pressure plate. The slide is extended into the slide groove so that the pressure plate is mounted on the cover plate, and the pressure plate can move laterally relative to the cover plate.

[0012] Optionally, the handle is provided with a boss with a mounting hole formed therein; the cover is provided with a rotating post that fits into the mounting hole. Opposite sides of the handle are provided with upwardly projecting bosses with mounting holes formed therein, and the rotating post on the cover fits into the mounting holes, so that the cover can rotate relative to the handle to open or close the water inlet, thereby adding water or preventing dust from falling into the water inlet.

[0013] Optionally, the body is provided with a boss having a mounting hole formed therein; the cover is provided with a rotating post that fits within the mounting hole. The body is provided with bosses, the distance between the bosses matching the width of the cover. The bosses have mounting holes formed therein, and the rotating post on the cover fits within the mounting hole so that the cover is mounted on the body and covers the water inlet.

[0014] Optionally, the cover is provided with an air outlet, wherein a pressure limiting valve is disposed in the air outlet. When the pressure exceeding a set pressure, the pressure limiting valve is lifted by water vapor, and the water vapor overflows from the air outlet to regulate the pressure in the cooking cavity so that the pressure in the cooking cavity is maintained within a set range.

[0015] Optionally, the cover is provided with a sealing ring along its circumference, and the pressure plate compresses the sealing ring to prevent the cover from separating from the body. Specifically, the sealing ring is made of silicone or plastic, providing excellent sealing properties and sealing the joint between the body and the cover. The user moves the pressure plate to compress the sealing ring, thereby enhancing the sealing effect of the sealing ring and preventing the cover from separating from the body.

[0016] Optionally, a water injection cavity connected to the cooking cavity is formed in the handle, and the water injection port is formed at the top of the water injection cavity. The handle is constructed as a hollow structure, and the hollow structure forms the water injection cavity. An opening is formed at the connection between the water injection cavity and the cooking cavity to connect the cooking cavity. The top of the water injection cavity is formed with a water injection port along its circumference, and water enters the water injection cavity through the water injection port and then enters the cooking cavity.

[0017] Optionally, the cooking chamber includes a water storage chamber and an evaporation chamber, wherein the evaporation chamber is provided with a water flow hole for communication with the water storage chamber. Water from the water injection chamber enters the water storage chamber, which is then connected to the evaporation chamber, and then enters the evaporation chamber through the water flow hole. The evaporation chamber is configured to convert liquid water into steam to heat food.

[0018] Optionally, an electric heating device is disposed below the evaporation chamber. It should be noted that the electric heating device is only disposed below the evaporation chamber. The electric heating device can be a heating plate or a heating disk, which is not limited here.

[0019] Optionally, the handle is integrally formed with the body, and the handle is formed by extending outward from the body. The integral molding of the handle and the body is convenient to manufacture and has high processing efficiency. The handle is more firmly connected to the body and will not fall off easily, thereby extending the service life of the cooking pot.

[0020] 1. In the present invention, a handle for injecting water into the cooking cavity is provided on the main body, and the user can inject water into the cooking cavity through the water injection port without opening the lid.

[0021] 2. In the present invention, a reversible cover is also provided on the handle. The cover can be flipped to change its position to open or close the water inlet, thereby preventing dust, debris, etc. from entering the cooking cavity from the water inlet and contaminating the food, and also preventing debris from clogging the water inlet channel.

[0022] 3. In the present invention, a laterally movable pressure plate is provided on the cover of the handle. When the pressure plate moves to the second position, it can press the cover tightly to prevent the cover from being pushed open by steam, thereby maintaining a slightly pressurized state in the cooking cavity.

[0023] These features and advantages of the present invention will be further disclosed in the following detailed description and accompanying drawings. The preferred embodiments and means of the present invention will be fully illustrated in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of the present invention. Furthermore, although multiple features, elements, and components may be present in each of the following text and accompanying drawings, they may be labeled with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is a structural diagram of the embodiment of the present invention when the pressing plate presses the cover body;

[0026] Figure 2 This is a structural diagram of a cover body in an embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of the main body in an embodiment of the present invention;

[0028] Figure 4 This is a structural diagram of the main body ignoring the cover plate in an embodiment of the present invention;

[0029] Figure 5 for Figure 4 Schematic diagram of the structure at A in the middle;

[0030] Figure 6 Schematic diagram of the structure of the cover plate in an embodiment of the present invention;

[0031] Figure 7 is a cross-sectional view of an embodiment of the present invention;

[0032] Figure 8 for Figure 7 Schematic diagram of the structure at B in the middle;

[0033] Figure 9 This is a structural diagram of an embodiment of the present invention when the pressing plate does not press the cover body;

[0034] Figure 10 This is a schematic structural diagram of an embodiment of the present invention when the water injection port is open.

[0035] Among them, 1. Main body; 11. Handle; 111. Water inlet; 112. Cover; 1121. Pressing plate; 1121a. Slide; 1122. Sink; 1122b. Slide; 1123. Rotating column; 113. Boss; 1131. Mounting hole; 114. Water injection chamber; 2. Cover; 21. Air outlet; 22. Pressure limiting valve; 23. Sealing ring; 3. Cooking chamber; 31. Water storage chamber; 32. Evaporation chamber; 321. Water flow hole; 4. Electric heating device. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described in the embodiments are intended to explain the present invention and are not to be construed as limiting the present invention.

[0037] Reference in this specification to "one embodiment," "an example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment of the present patent disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0038] Example:

[0039] like Figures 1 to 3As shown, this embodiment provides a micro-pressure cooking device. Specifically, the micro-pressure cooking device is a micro-pressure steamer, comprising a main body 1 and a lid 2 disposed above the main body 1. The lid 2 is detachably attached to the top of the main body 1. The top of the main body 1 forms a rim along its circumference. When the lid 2 is attached to the rim, a micro-pressure cooking chamber 3 is formed between the lid 2 and the main body 1, allowing food to be cooked faster and heated more evenly. Specifically, in this embodiment, the main body 1 and the lid 2 are both rectangular. In other embodiments, the main body 1 and the lid 2 may also have hemispherical or truncated cone structures, but the shape of the junction between the main body 1 and the lid 2 must be adapted to ensure good sealing within the cooking chamber 3. To cook food, several layers of steamers can be placed between the main body 1 and the lid 2. Steamers are conventional techniques and will not be described in detail here.

[0040] In addition, if Figure 2 As shown, the cover 2 is provided with a sealing ring 23 made of silicone material along the circumference, and the sealing ring 23 is used to seal the joint between the cover 2 and the body 1 to prevent pressure release. In other embodiments, the sealing ring 23 can also be made of plastic material.

[0041] An operating panel is installed on the side wall of the main body 1 for adjusting parameters such as heating time and temperature. An inverted U-shaped handle is provided on the top surface of the lid 2. The temperature of the lid 2 increases during cooking, making it easier for the user to remove and place the lid 2. The top surface of the lid 2 also features an air vent 21 for venting water vapor. A pressure-limiting valve 22 is installed within the air vent 21. When the pressure exceeds a set pressure, the pressure-limiting valve 22 is lifted by the water vapor, allowing the water vapor to escape from the air vent 21, thereby regulating the pressure within the cooking chamber 3 and maintaining it within a set range, thus improving the safety of the cooking appliance.

[0042] like Figure 4 and Figure 8 As shown, rectangular parallelepiped handles 11 are provided on opposite sides of the main body 1. The user grasps these handles 11 to lift the entire cooking appliance. The handles 11 are hollow, forming a water inlet 114 that communicates with the cooking cavity 3. The top of the water inlet 114 defines an opening that forms a water inlet 111, through which the user adds water to the cooking cavity 3.

[0043] like Figure 9 and Figure 10 As shown, a reversible cover 112 is provided above the water inlet 111. The user can open or close the water inlet 111 by reversing the cover 112. When the cover 112 covers the water inlet 111, the water inlet 111 is closed; when the cover 112 is away from the water inlet 111, the water inlet 111 is open, and the user can add water to the cooking chamber 3 through the water inlet 111.

[0044] In addition, if Figure 1 、 Figure 6 and Figure 9 As shown, the cover 112 is provided with a push-pull pressure plate 1121 that can be moved laterally. When the pressure plate 1121 moves above the sealing ring 23, it can press the cover 2. During cooking, the cover 2 tends to move upward due to the action of water vapor in the cooking cavity 3. By pressing the sealing ring 23 with the pressure plate 1121, the cover 2 and the main body 1 remain connected, preventing the cover 2 from being pushed open by the water vapor. When the pressure plate 1121 moves to a position where it no longer contacts the sealing ring 23, it no longer restricts the longitudinal movement of the cover 2, allowing the user to separate the cover 2 from the main body 1.

[0045] Specifically, if Figure 6 As shown, a downwardly recessed sink 1122 is provided on the top of the cover 112, and slide bars 1122b are provided on the two opposite side walls along the length direction of the sink 1122. A slide groove 1121a that matches the shape and size of the slide bar 1122b is provided on the pressure plate 1121. The shape and size of the pressure plate 1121 are consistent with the sink 1122. When the three side walls of the pressure plate 1121 are in contact with the side walls of the sink 1122, the pressure plate 1121 is completely located in the sink 1122. At this time, the pressure plate 1121 does not extend beyond the cover body 2 in the horizontal direction. When the cover 112 is flipped, the pressure plate 1121 flips along with the cover 112. When the pressure plate 1121 slides relative to the cover 112 and presses the sealing ring 23 on the cover body 2, as shown Figure 3 As shown, the pressure plate 1121 extends laterally beyond the cover plate 112. If the cover plate 112 is turned over, the portion of the pressure plate 1121 that extends beyond the cover plate 112 will restrict the cover plate 112, preventing it from turning over. Therefore, when the pressure plate 1121 is pressed against the cover body 2, the cover plate 112 cannot turn over. This prevents the water inlet 111 from suddenly opening when pressure builds up in the cooking appliance, causing air to leak and potentially creating a safety hazard.

[0046] In this embodiment, if Figure 5 and Figure 6 As shown, the body 1 has two upwardly projecting bosses 113 on one side of the handle 11. The distance between the bosses 113 matches the width of the cover 112. Bosses 113 are defined with mounting holes 1131. Rotating posts 1123 protruding from the cover 112 fit within these holes, allowing the cover 112 to be mounted on the body 1 and over the water inlet 111. This prevents dust and debris from entering the water inlet chamber 114 and potentially blocking the water inlet passage between the chamber 114 and the cooking chamber 3. The dimensions of the cover 112 match those of the water inlet 111.

[0047] In other embodiments, upwardly protruding bosses 113 may also be provided on opposite sides of the handle 11, with a mounting hole 1131 provided on the boss 113, and a rotating column 1123 protruding on the cover plate 112 is assembled in the mounting hole 1131 so that the cover plate 112 can rotate relative to the handle 11 to open or close the water inlet 111, thereby achieving the purpose of adding water or preventing dust from falling into the water inlet 111.

[0048] like Figure 7 As shown, the body 1 is a hollow structure, and a water storage chamber 31 is formed in the hollow structure of the body 1. The water injection chamber 114 is provided with an opening on the side close to the body 1. The opening is connected to the water storage chamber 31. Water enters the water storage chamber 31 from the water injection chamber 114 to ensure that the water storage chamber 31 has sufficient water. When the water volume of the water storage chamber 31 is insufficient, the user can add water to the water injection port 111 to replenish the water volume of the water storage chamber 31. An evaporation chamber 32 is also formed in the hollow structure of the body 1. The evaporation chamber 32 is constructed as a truncated cone structure. Figure 8 As shown, a water flow hole 321 is provided at the bottom of the evaporation chamber 32, and the water flow hole 321 is connected to the water storage chamber 31. The water in the water injection chamber 114 enters the water storage chamber 31, and the water storage chamber 31 is connected to the evaporation chamber 32, and the water then enters the evaporation chamber 32 through the water flow hole 321. An electric heating device 4 is provided at the bottom of the evaporation chamber 32. Specifically, the electric heating device 4 is an electric heating plate that can heat liquid water into water vapor. In other embodiments, an electric heating plate can also be provided at the bottom of the evaporation chamber 32. Specifically, the bottom of the main body 1 forms a cavity separated from the evaporation chamber 32 and the water storage chamber 31, and the electric heating plate is located in the cavity, which isolates the electric heating plate from water, thereby improving safety performance.

[0049] Specifically, the evaporation chamber 32 is located in the middle of the water storage chamber 31 , and the top surface of the evaporation chamber 32 is slightly lower than the top surface of the body 1 so that the water vapor can be more concentrated to cook food more efficiently.

[0050] In this embodiment, the two handles 11 are integrally formed with the main body 1. This integral molding of the handles 11 and main body 1 not only facilitates manufacturing but also improves processing efficiency. Furthermore, the handles 11 are more firmly attached to the main body 1, preventing them from easily falling off, thereby extending the lifespan of the cooking pot. Of course, in other embodiments, the handles 11 and main body 1 may be separate components, and such separate configurations are also covered by the scope of protection of this patent.

[0051] In the present invention, the main body 1 is provided with a handle 11 for injecting water into the cooking cavity 3. Through the water inlet 111, the user can add water to the cooking cavity 3 without opening the lid 2. A reversible cover 112 is provided on the handle 11 to open or close the water inlet 111. A laterally movable pressure plate 1121 is provided on the cover 112 of the handle 11. When this pressure plate 1121 moves above the lid 2, it presses against the lid 2, preventing it from being pushed open by steam and maintaining a slightly pressurized state within the cooking cavity 3. In summary, the handle 11 of the present invention not only allows water to be injected into the cooking cavity 3 without opening the lid 2, but also the cover 112 on the handle 11 seals the water inlet 111, and the pressure plate 1121 on the cover 112 also compresses the lid 2. The present invention has excellent sealing performance and a compact structure, making it extremely convenient to use and suitable for widespread use.

[0052] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A micro-pressure cooking device, comprising a body (1) and a cover (2), wherein the cover (2) is detachably coupled to the body (1), and when the cover (2) is coupled to the body (1), a micro-pressure cooking cavity (3) is formed between the cover (2) and the body (1), characterized in that: The body (1) is provided with a handle (11), the handle (11) is provided with a water inlet (111) connected to the cooking cavity (3), the handle (11) is also provided with a reversible cover (112) for opening or closing the water inlet (111), and the cover (112) is provided with a laterally movable pressure plate (1121); the pressure plate (1121) has a first position and a second position, when the pressure plate (1121) is in the first position, the cover (2) can be separated upward from the body (1), and when the pressure plate (1121) is in the second position, the pressure plate (1121) presses the cover (2) to prevent the cover (2) from being separated upward from the body (1).

2. The cooking appliance according to claim 1, wherein A sink (1122) is formed on the cover plate (112), a slide bar (1122b) is arranged on the side wall of the sink (1122) along the length direction, a slide groove (1121a) is formed on the pressure plate (1121) and is matched with the slide bar (1122b), and the pressure plate (1121) switches its position through the relative movement of the slide bar (1122b) and the slide groove (1121a).

3. The cooking appliance according to claim 1 or 2, characterized in that: The cover body (2) is provided with a sealing ring (23) along the circumference, and the pressure plate (1121) prevents the cover body (2) from separating from the main body (1) by pressing the sealing ring (23).

4. The cooking appliance according to claim 1 or 2, characterized in that: The handle (11) is provided with a boss (113), and a mounting hole (1131) is provided on the boss (113); the cover plate (112) is provided with a rotating column (1123) assembled in the mounting hole (1131).

5. The cooking appliance according to claim 1 or 2, characterized in that: The body (1) is provided with a boss (113), and the boss (113) is provided with a mounting hole (1131); the cover plate (112) is provided with a rotating column (1123) assembled in the mounting hole (1131).

6. The cooking appliance according to claim 1 or 2, characterized in that: An air outlet (21) is provided on the cover body (2), and a pressure limiting valve (22) is arranged in the air outlet (21).

7. The cooking appliance according to claim 1, wherein A water injection cavity (114) communicating with the cooking cavity (3) is formed in the handle (11), and the water injection port (111) is formed at the top of the water injection cavity (114).

8. The cooking appliance according to claim 1, wherein A water storage chamber (31) and an evaporation chamber (32) are formed in the cooking cavity (3); the evaporation chamber (32) is provided with a water flow hole (321) to communicate with the water storage chamber (31).

9. The cooking appliance according to claim 8, characterized in that An electric heating device (4) is arranged below the evaporation chamber (32).

10. The cooking appliance according to claim 1, wherein The handle (11) and the body (1) are integrally formed, and the handle (11) is formed by extending outward from the body (1).

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