A cooking device

Abstract

A cooking device provided by the present invention includes: an outer pot, which includes a receiving cavity, and a liftable support assembly is arranged on the inner bottom surface of the receiving cavity. The top end of the support assembly is fixedly connected to a heating plate, and is suitable for adjusting the distance between the heating plate and the inner bottom surface; an inner pot, which is coaxially arranged with the receiving cavity and is suitable for telescoping along the axial direction of the receiving cavity, and the bottom of the inner pot abuts against the heating plate. By providing a telescopic inner pot and a liftable heating plate, the volume of the inner pot can be changed, and at the same time, the heating amount of the heating plate for the inner pot remains unchanged. In this way, when the volume of the inner pot becomes smaller, the heating efficiency of the heating plate for the inner pot is improved. It can be close to the inner bottom surface of the receiving cavity to complete the functions of making soup and cooking rice with low temperature requirements and large volume requirements, and can also be far away from the inner bottom surface of the receiving cavity to perform functions such as stir-frying, frying, and baking with higher temperature requirements and low volume requirements, improving the defects of few and limited application functions of the cooking device and expanding the applicable field of the cooking device.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a cooking device. Background Art

[0002] At present, a heating plate is the main heating element of an electric rice cooker, usually an aluminum alloy disc with an embedded electric heating tube. The heating plate is placed under the inner pot and can be seen by removing the inner pot.

[0003] In the prior art, the heating plate in the electric rice cooker is fixed on the base and cannot move. The heating position and heating amount of the inner pot are relatively fixed. The large volume and placement depth of the inner pot limit the functions of the electric rice cooker to only cooking rice or making soup, and it cannot perform functions related to a frying pan, a griddle, or a baking tray, thus restricting the application fields of the electric rice cooker. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the application functions of the electric rice cooker in the prior art are limited, and thus provide a cooking device.

[0005] The present invention provides a cooking device, including: an outer pot, including a receiving cavity, on the inner bottom surface of which a liftable support assembly is provided. The top end of the support assembly is fixedly connected to a heating plate, and is adapted to adjust the distance between the heating plate and the inner bottom surface;

[0006] An inner pot, coaxially arranged with the receiving cavity, and adapted to axially expand and contract along the receiving cavity. The bottom of the inner pot abuts against the heating plate.

[0007] A plurality of engaging parts are arranged along the height direction of the inner wall of the receiving cavity. The engaging parts are adapted to rotatably engage and fix with the heating plate.

[0008] The inner bottom surface of the receiving cavity is provided with a base, which is fixedly connected to the support assembly. The base includes a motor with an output shaft arranged in the vertical direction, and the motor is adapted to drive the base to rotate along the central axis of the inner bottom surface.

[0009] A plurality of protruding parts are horizontally protruded along the edge of the heating plate;

[0010] The engaging parts are a plurality of convex blocks arranged at the same horizontal height. The convex blocks protrude along the inner wall of the receiving cavity towards the central axis direction of the inner bottom surface, and are correspondingly arranged with the protruding parts, and are adapted to receive the protruding parts.

[0011] The support assembly includes: a first connecting rod, including a first fixed end and a first moving end. The first fixed end is fixedly connected to the bottom surface of the heating plate, and the first moving end is slidably connected to the upper surface of the base;

[0012] The second link is arranged to cross the first link and is hinged to the first link at the crossing position. The second link includes a second fixed end and a second moving end. The second fixed end is fixedly connected to the upper surface of the base, and the second moving end is slidably connected to the bottom surface of the heating plate.

[0013] The limiting parts are respectively fixed on the upper surface of the base and the bottom surface of the heating plate, and are adapted to limit and enable the first moving end and the second moving end to move in a fixed direction.

[0014] Limiting rods are arranged on the first moving end and the second moving end.

[0015] The limiting part includes two clamping parts arranged oppositely, and a gap is provided between the clamping parts. The gap is adapted to accommodate the first moving end or the second moving end.

[0016] The clamping part is provided with a receiving hole, and the receiving hole has the same extending direction as the gap. The receiving hole is adapted to receive and engage the limiting rod.

[0017] The support assembly further includes a power part, and the power part is adapted to provide power for the lifting of the support assembly.

[0018] The power part is an electric push rod, which is arranged on the base. The electric push rod includes an extension rod, and the end of the extension rod abuts against the lower surface of the heating plate.

[0019] The inner pot includes: a first pot body, which is a flexible member arranged in a ring shape and is engaged with the accommodating cavity, and is adapted to expand and contract radially in the accommodating cavity;

[0020] A second pot body, which is a rigid member arranged in a disc shape and is fixedly connected to the first pot body, and the bottom thereof abuts against the heating plate.

[0021] The first pot body includes: a clamping part, which is arranged in an annular arc shape and has a radius greater than the radius of the accommodating cavity opening, and abuts against and is engaged with the accommodating cavity opening;

[0022] A folding part, which is arranged in the accommodating cavity and is adapted to expand and contract axially along the accommodating cavity, and respectively connects and fixes the clamping part and the second pot body.

[0023] The cooking device is an electric rice cooker.

[0024] The technical solution of the present invention has the following advantages:

[0025] 1. A cooking device provided by the present invention includes: an outer pot, which includes a receiving cavity, and a liftable support assembly is arranged on the inner bottom surface of the receiving cavity. The top end of the support assembly is fixedly connected to a heating plate, and is adapted to adjust the distance between the heating plate and the inner bottom surface; an inner pot, which is coaxially arranged with the receiving cavity and is adapted to axially expand and contract along the receiving cavity. The bottom of the inner pot abuts against the heating plate.

[0026] The heating plate is fixed on the liftable support assembly, and the support assembly is arranged on the inner bottom surface of the receiving cavity of the outer pot, so that the heating plate can be lifted and lowered in the receiving cavity. By providing a telescopic inner pot and a liftable heating plate, the volume of the inner pot can be changed, and at the same time, the heating amount of the heating plate for the inner pot remains unchanged. In this way, when the volume of the inner pot becomes smaller, the heating efficiency of the heating plate for the inner pot is improved. Such a setting can complete the functions of making soup and cooking rice with low temperature requirements and large capacity requirements when the heating plate is close to the inner bottom surface of the receiving cavity and the volume of the inner pot is large, and can also perform functions such as frying, frying, and baking with higher temperature requirements and lower capacity requirements when the heating plate is far from the inner bottom surface of the receiving cavity and the volume of the inner pot is small, improving the defect that the application functions of the cooking device are few and limited, and expanding the applicable field of the cooking device.

[0027] 2. In the cooking device provided by the present invention, a base is arranged on the inner bottom surface of the receiving cavity. The base is fixedly connected to the support assembly. The base includes a motor with an output shaft arranged in the vertical direction, and the motor is adapted to drive the base to rotate along the central axis of the inner bottom surface.

[0028] A rotatable base is arranged in the receiving cavity, and the support assembly is fixed to the base. At the same time, the support assembly and the heating plate are fixedly connected. Therefore, the rotation of the base can drive the rotation of the heating plate. After rotation, the heating plate can be fixedly connected to the engaging portion. Since the heating plate abuts against the bottom of the telescopic inner pot and bears the pressure brought by the inner pot during the contraction process, the engaging portion on the inner wall of the receiving cavity can effectively supplement and fix the heating plate, reducing the stress borne by the support assembly and avoiding the phenomenon of stress concentration, improving the safety and service life of the device during use.

[0029] 3. In the cooking device provided by the present invention, a limiting rod is arranged on the first moving end and the second moving end; the limiting portion includes two relatively arranged clamping portions, and a gap is provided between the clamping portions. The gap is adapted to accommodate the first moving end or the second moving end; a receiving hole is arranged on the clamping portion, and the receiving hole extends in the same direction as the gap. The receiving hole is adapted to accommodate and engage the limiting rod.

[0030] The limiting part, through the clamping part, has a limiting effect on the movement stroke and movement direction of the cross-hinged first connecting rod and second connecting rod, ensuring the stability of the two connecting rods during movement, improving the load-bearing capacity of the two connecting rods, preventing the two connecting rods from tipping over or rolling over, and ensuring the effectiveness and stability of the device.

[0031] 4. For the cooking device provided by the present invention, the power part is an electric push rod, which is arranged on the base. The electric push rod includes an extension rod, and the end of the extension rod abuts against the lower surface of the heating plate.

[0032] By arranging the electric push rod on the base, on the one hand, it provides a power source and auxiliary support for the movement of the first connecting rod and the second connecting rod. On the other hand, the lifting movement stroke of the heating plate is controlled by the extension length of the extension rod. At the same time, the control is convenient, the movement of the heating plate is relatively precise, and it is convenient for the user to control the temperature of heating and cooking and the volume of the inner pot.

[0033] 5. For the cooking device provided by the present invention, the first pot body includes: a clamping part, which is arranged in an annular arc shape with a radius greater than the radius of the accommodating cavity opening, and abuts against and clamps with the accommodating cavity opening; a folding part, which is arranged in the accommodating cavity and is suitable for telescoping along the axial direction of the accommodating cavity, and respectively connects and fixes the clamping part and the second pot body.

[0034] The first pot body, which is flexibly arranged, is divided into a clamping part and a folding part. While ensuring fixation at the top of the accommodating cavity, the telescoping folding part along the axial direction increases the contraction amplitude of the accommodating cavity, reduces the lower limit of the volume of the inner pot, enables the heating amount of the heating plate to the second pot body to meet functions such as frying, frying, and baking, and expands the applicable field of the cooking device. Description of the Drawings

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 It is a partial cross-sectional schematic diagram of the cooking device provided in the embodiment of the present invention;

[0037] Figure 2 It is Figure 1 An enlarged schematic diagram of part A of the cooking device shown;

[0038] Figure 3 It is Figure 1 A three-dimensional structural schematic diagram of the limiting part in the cooking device shown;

[0039] Description of reference numerals:

[0040] 1-outer pot; 2-inner pot; 3-support assembly; 4-heating plate; 5-base; 11-accommodating chamber; 111-clamping portion; 21-first pot body; 22-second pot body; 211-clamping portion; 212-folding portion; 31-first connecting rod; 32-second connecting rod; 310-limiting rod; 311-first fixed end; 312-first movable end; 321-second fixed end; 322-second movable end; 33-limiting portion; 331-clamping portion; 332-accommodating hole; 34-power portion; 41-protrusion. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] like Figure 1 - Figure 3, this embodiment provides a cooking device, including an outer pot 1 and an inner pot 2. The outer pot 1 includes a receiving cavity 11. A liftable support assembly 3 is provided on the inner bottom surface of the receiving cavity 11. The top end of the support assembly 3 is fixedly connected to a heating plate 4 to adjust the distance between the heating plate 4 and the inner bottom surface. The inner pot 2 is coaxially arranged with the receiving cavity 11 and telescopically moves along the axis of the receiving cavity 11. The bottom of the inner pot 2 abuts against the heating plate 4. In this embodiment, the cooking device is an electric rice cooker. The bottom of the inner pot 2 and the bottom of the receiving cavity 11 are both circular and on the same central axis.

[0046] The heating plate 4 is fixed on the liftable support assembly 3. The support assembly 3 is provided on the inner bottom surface of the receiving cavity 11 of the outer pot 1, so that the heating plate 4 can be lifted and lowered in the receiving cavity 11. By providing the telescopic inner pot 2 and the liftable heating plate 4, the volume of the inner pot 2 can be changed, and at the same time, the heating amount of the heating plate 4 for the inner pot 2 remains unchanged. In this way, when the volume of the inner pot 2 becomes smaller, the heating efficiency of the heating plate 4 for the inner pot 2 is improved. Such a setting can complete the functions of soup cooking and rice cooking with low temperature requirements and large capacity requirements when the heating plate 4 is close to the inner bottom surface of the receiving cavity 11 and the volume of the inner pot 2 is large, and can also perform functions such as frying, frying, and baking with high temperature requirements and low capacity requirements when the heating plate 4 is far from the inner bottom surface of the receiving cavity 11 and the volume of the inner pot 2 is small, improving the defect that the application functions of the cooking device are few and limited, and expanding the applicable field of the cooking device.

[0047] A base 5 is provided on the inner bottom surface of the receiving cavity 11. The base 5 is fixedly connected to the support assembly 3. The base 5 includes a motor with an output shaft arranged in the vertical direction, and the motor drives the base 5 to rotate along the central axis of the inner bottom surface.

[0048] A rotatable base 5 is provided in the receiving cavity 11. The support assembly 3 is fixed to the base 5. At the same time, the support assembly 3 and the heating plate 4 are fixedly connected. Therefore, the rotation of the base 5 can drive the rotation of the heating plate 4. After rotation, the heating plate 4 can be fixedly connected to the engaging portion 111. Since the heating plate 4 abuts against the bottom of the telescopic inner pot 2 and bears the pressure brought by the inner pot 2 during the contraction process, the engaging portion 111 on the inner wall of the receiving cavity 11 can effectively supplement and fix the heating plate 4, reducing the stress borne by the support assembly 3 and avoiding the phenomenon of stress concentration, improving the safety and service life of the device during use.

[0049] In this embodiment, five layers of engaging portions 111 are provided on the inner wall of the accommodating cavity 11 in the height direction, and the engaging portions 111 are rotationally and fixedly engaged with the heating plate 4. Each layer of the engaging portions 111 is composed of four protrusions arranged at the same horizontal height. The protrusions protrude along the inner wall of the accommodating cavity 11 towards the central axis direction of the inner bottom surface and are evenly arranged. The diameter of the heating plate 4 is smaller than the diameter of the radial cavity of the accommodating cavity 11. Four protruding portions 41 extending in a long strip and square head shape are arranged on the heating plate 4 in the horizontal direction. Corresponding to the protrusions, the protrusions can receive the protruding portions 41 and fix the heating plate 4 between each layer of the engaging portions 111. In this embodiment, the protrusions in different directions are arranged in the same height direction.

[0050] During the rotation and upward movement of the heating plate 4, the protruding portions 41 are staggered from the protrusions to avoid collision interference. When it rises to the required height and corresponds to the position between two protrusions at different heights in the same height direction, the protruding portions 41 are rotated to the corresponding position where they are received by the protrusions.

[0051] The support assembly 3 includes: a first connecting rod 31, including a first fixed end 311 and a first moving end 312. The first fixed end 311 is fixedly connected to the bottom surface of the heating plate 4, and the first moving end 312 is slidably connected to the upper surface of the base 5; a second connecting rod 32, arranged crosswise with the first connecting rod 31 and hinged to the first connecting rod 31 at the crossing position. The second connecting rod 32 includes a second fixed end 321 and a second moving end 322. The second fixed end 321 is fixedly connected to the upper surface of the base 5, and the second moving end 322 is slidably connected to the bottom surface of the heating plate 4; a limiting portion 33, respectively fixed on the upper surface of the base 5 and the bottom surface of the heating plate 4, adapted to limit and enable the first moving end 312 and the second moving end 322 to move in a fixed direction.

[0052] In this embodiment, the hinged position of the first connecting rod 31 and the second connecting rod 32 is at the middle position, and each end is provided with a horizontally extending section. On the one hand, it is convenient to provide screw holes on the first fixed end 311 and the second fixed end 321, and the heating plate 4 and the base 5 can be fixed by screws respectively. On the other hand, it is convenient to arrange the limiting rod 310.

[0053] Limiting rods 310 are arranged on the first moving end 312 and the second moving end 322; the limiting portion 33 includes two relatively arranged clamping portions 331, and there is a gap between the clamping portions 331. The gap is adapted to accommodate the first moving end 312 or the second moving end 322; a receiving hole 332 is arranged on the clamping portion 331, and the receiving hole 332 extends in the same direction as the gap. The receiving hole 332 is adapted to receive and engage the limiting rod 310.

[0054] The limiting portion 33, through the clamping portion 331, has a limiting effect on the movement stroke and movement direction of the first link 31 and the second link 32 that are cross-hinged, ensuring the stability of the two links during movement, improving the load-bearing capacity of the two links, preventing the two links from tipping over or overturning, and ensuring the effectiveness and stability of the device.

[0055] The support assembly 3 further includes a power unit 34, and the power unit 34 is adapted to provide power for the lifting of the support assembly 3. In this embodiment, the power unit 34 is an electric push rod, which is arranged on the base 5. The electric push rod includes an extension rod, and the end of the extension rod abuts against the lower surface of the heating plate 4. As an alternative embodiment, the power unit 34 can be a cylinder or a hydraulic cylinder.

[0056] By arranging the electric push rod on the base 5, on the one hand, it provides a power source and auxiliary support for the movement of the first link 31 and the second link 32. On the other hand, the lifting movement stroke of the heating plate 4 is controlled by the extension length of the extension rod. At the same time, the control is convenient, the movement of the heating plate 4 is relatively accurate, and it is convenient for the user to control the temperature of heating and cooking and the volume of the inner pot 2.

[0057] The inner pot 2 includes: a first pot body 21, which is a flexible member arranged in a ring shape and is engaged with the accommodating cavity 11, and is adapted to expand and contract radially in the accommodating cavity 11; a second pot body 22, which is a rigid member arranged in a disk shape and is fixedly connected to the first pot body 21, and the bottom thereof abuts against the heating plate 4.

[0058] The first pot body 21 includes: a clamping portion 211, which is arranged in an annular arc shape with a radius larger than the radius of the opening of the accommodating cavity 11, and abuts against and is engaged with the opening of the accommodating cavity 11; a folding portion 212, which is arranged in the accommodating cavity 11 and is adapted to expand and contract axially along the accommodating cavity 11, and respectively connects and fixes the clamping portion 211 and the second pot body 22.

[0059] The flexible first pot body 21 is divided into a clamping portion 211 and a folding portion 212. While ensuring the fixation at the top of the accommodating cavity 11, the amplitude of the contraction of the accommodating cavity 11 is increased through the axially expandable and contractible folding portion 212, the lower limit of the volume of the inner pot 2 is reduced, so that the heating amount of the heating plate 4 to the second pot body 22 can meet functions such as frying, frying, and roasting, and the applicable field of the rice cooker is expanded.

[0060] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A cooking device, characterized in that, Comprising: An outer pot (1), including a receiving cavity (11), on the inner bottom surface of the receiving cavity (11), there is a liftable support assembly (3), the top end of the support assembly (3) is fixedly connected to a heating plate (4), suitable for adjusting the distance between the heating plate (4) and the inner bottom surface; An inner pot (2), coaxially arranged with the receiving cavity (11), suitable for axially telescoping along the receiving cavity (11), the bottom of the inner pot (2) abuts against the heating plate (4); The inner pot (2) includes a first pot body (21) and a second pot body (22), the first pot body (21) is a flexible member arranged in a ring shape and is engaged with the receiving cavity (11) to be fixed at the top end of the receiving cavity (11); On the inner wall of the receiving cavity (11), there are a number of engaging parts (111) arranged along the height direction, the engaging parts (111) are suitable for rotationally engaging and fixing with the heating plate (4); on the inner bottom surface of the receiving cavity (11), there is a base (5), the base (5) is fixedly connected to the support assembly (3), the base (5) includes a motor with an output shaft arranged in the vertical direction, the motor is suitable for driving the base (5) to rotate along the central axis of the inner bottom surface.

2. The cooking device according to claim 1, wherein, A number of protruding parts (41), protruding horizontally along the edge of the heating plate (4); The engaging parts (111) are a number of bumps arranged at the same horizontal height, the bumps protrude along the inner wall of the receiving cavity (11) towards the central axis direction of the inner bottom surface, corresponding to the protruding parts (41), suitable for receiving the protruding parts (41).

3. The cooking device according to claim 2, characterized in that, The support assembly (3) includes: A first connecting rod (31), including a first fixed end (311) and a first moving end (312), the first fixed end (311) is fixedly connected to the bottom surface of the heating plate (4), the first moving end (312) is slidably connected to the upper surface of the base (5); A second connecting rod (32), arranged crosswise with the first connecting rod (31) and hinged to the first connecting rod (31) at the cross position, the second connecting rod (32) includes a second fixed end (321) and a second moving end (322), the second fixed end (321) is fixedly connected to the upper surface of the base (5), the second moving end (322) is slidably connected to the bottom surface of the heating plate (4); A limiting part (33), respectively fixed on the upper surface of the base (5) and the bottom surface of the heating plate (4), suitable for limiting and enabling the first moving end (312) and the second moving end (322) to move in a fixed direction.

4. The cooking device according to claim 3, wherein, Limiting rods (310) are arranged on the first moving end (312) and the second moving end (322); The limiting part (33) includes two relatively arranged clamping parts (331), there is a gap between the clamping parts (331), the gap is suitable for accommodating the first moving end (312) or the second moving end (322); The clamping part (331) is provided with a receiving hole (332), the receiving hole (332) has the same extending direction as the gap, and the receiving hole (332) is adapted to receive and engage the limiting rod (310).

5. The cooking device according to claim 4, characterized in that, The support assembly (3) further includes a power unit (34), and the power unit (34) is adapted to provide power for the lifting of the support assembly (3).

6. The cooking device according to claim 5, characterized in that, The power unit (34) is an electric push rod arranged on the base (5). The electric push rod includes an extending rod, and the end of the extending rod abuts against the lower surface of the heating plate (4).

7. The cooking device according to claim 1, characterized in that, The inner pot (2) includes: A first pot body (21), which is a flexible member arranged in a ring shape, is engaged with the receiving cavity (11), and is adapted to expand and contract radially in the receiving cavity (11); A second pot body (22), which is a rigid member arranged in a disc shape, is fixedly connected to the first pot body (21), and the bottom thereof abuts against the heating plate (4).

8. The cooking device according to claim 7, wherein The first pot body (21) includes: A clamping part (211), which is arranged in an annular arc shape with a radius larger than the radius of the mouth of the receiving cavity (11), and abuts against and engages with the mouth of the receiving cavity (11); A folding part (212), which is arranged in the receiving cavity (11), is adapted to expand and contract axially along the receiving cavity (11), and fixedly connects the clamping part (211) and the second pot body (22) respectively.

9. The cooking device according to any one of claims 1 to 8, characterized in that, The cooking device is an electric rice cooker.

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