Intelligent frying and baking device

Abstract

The invention relates to the technical field of frying and baking devices, in particular to an intelligent frying and baking device. A lower baking tray is fixedly arranged on a main machine base, an upper baking tray is fixedly arranged on a lifting rod, the lifting rod is hinged to the main machine base, and a torsional elastic element is arranged between the lifting rod and the main machine base; a lock catch structure is arranged between the upper baking tray and the main machine base, a food bracket is arranged above the lower baking tray, a lifting device is arranged between the main machine base and the food bracket, and after the lock catch structure is unlocked, a lifting rod is opened under the action of a torsional elastic element and drives the lifting device to move upwards, so that the food bracket is lifted to be away from the lower baking tray; when the lifting rod is pressed downwards, the lifting rod drives the lifting device to move downwards, so that the food bracket is close to the lower baking tray. The baking tray is stably locked through the lock catch structure, the food bracket is cooperatively controlled to ascend and descend by combining the lifting device and the controller, food is prevented from being continuously heated and burnt due to high temperature, meanwhile, a mechanical transmission structure is adopted to replace a traditional spring, and elasticity attenuation is prevented.

Description

Technical Field

[0001] This invention relates to the field of grilling technology, and in particular to an intelligent grill. Background Technology

[0002] With the fast pace of modern life, the demand for convenient and efficient cooking equipment is increasing, and grills are becoming widely popular due to their ease of operation and rapid cooking. Traditional grills generally use a design where the upper and lower pans press together directly. If food is not removed promptly after cooking, the residual high temperature of the pans can cause the bottom of the food to continue to heat up, resulting in burnt food or excessive dehydration, severely affecting its taste and nutritional value. To address this problem, Chinese patent application number 20258561784.5 proposes a solution based on an elastic element. This solution uses a spring mechanism in the lower pan, utilizing the pressure of the upper pan closing to compress the spring, and then using the spring's rebound force to lift the food after unlocking. While this solution achieves physical separation of the food from the pan, it still has significant drawbacks: First, the instantaneous spring force can cause the food to rise unstably and in a jumping manner, potentially causing food displacement or splattering of liquids; second, the spring is prone to metal fatigue under long-term high-temperature environments and repeated compression, leading to reduced elasticity or even failure, requiring frequent replacement and maintenance. These limitations seriously affect the reliability of the equipment and the user experience.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent grill and its lifting device and locking structure, which has the advantages of preventing food from burning, preventing elasticity loss, improving lifting stability, and adapting to ingredients of different thicknesses.

[0005] This invention provides an intelligent grill, including a main unit base and a lifting rod. A lower grill pan is fixedly mounted on the main unit base, and an upper grill pan is fixedly mounted on the lifting rod. The lifting rod is hinged to the main unit base, and a torsional elastic element is provided between the lifting rod and the main unit base. A locking structure is provided between the upper grill pan and the main unit base to lock the upper grill pan onto the lower grill pan, thereby pairing the upper and lower grill pans to form a grilling cavity. A food tray is provided above the lower grill pan, and a lifting device is provided between the main unit base and the food tray. The lifting device is driven by the lifting rod, so that the lifting rod drives the lifting device to move up or down. When the locking structure is unlocked, the lifting rod opens under the action of the torsional elastic element, and the lifting rod drives the lifting device to move up, thereby raising the food tray away from the lower grill pan. When the lifting rod is pressed down, the lifting rod drives the lifting device to move down, so that the food tray is close to the lower grill pan.

[0006] Furthermore, the present invention also proposes a lifting device comprising a first transmission link and a second transmission link. The lower end of the first transmission link is hinged to the main unit via a first hinge, and the upper end of the first transmission link is hinged to the food tray via a second hinge. The lower end of the second transmission link is hinged to the main unit via a third hinge, and the upper end of the second transmission link is hinged to the food tray via a fourth hinge. The extended upper end of the second transmission link is connected to the lower part of the lifting rod via a crank slider. The first and second transmission links are inclined toward the lifting rod.

[0007] Furthermore, the present invention also proposes that the lower part of the lifting rod is fixedly connected to a driving link, and the upper extension end of the transmission link two is connected to the driving link through a crank slider.

[0008] Furthermore, the present invention also proposes that the lower part of the lifting rod is provided with a driving gear, and the main body is provided with a driven gear. The driving gear and the driven gear are arranged in an up-down meshing configuration. The lifting device includes a first transmission link and a second transmission link. The lower end of the first transmission link is hinged to the main body via a first hinge, and the upper end of the first transmission link is hinged to the food tray via a second hinge. The lower end of the second transmission link is hinged to the main body via a third hinge, and the upper end of the second transmission link is hinged to the food tray via a fourth hinge. The upper extension of the second transmission link is connected to the upper right part of the driven gear via a crank slider. The first and second transmission links are inclined toward the lifting rod direction.

[0009] Furthermore, the present invention also proposes that the distance from the first hinge to the second hinge is equal to the distance from the third hinge to the fourth hinge.

[0010] Furthermore, the present invention also proposes that transmission link one and transmission link two be arranged in parallel.

[0011] Furthermore, the present invention also proposes a locking structure including a locking hook, a locking plate, a motor and a cam. The locking hook is hinged to the main unit via a fifth hinge, and the locking plate is fixed on the upper baking tray. The motor is electrically connected to the controller, and the motor drives the cam to rotate. A return spring is provided between the lower part of the locking hook and the main unit. The return spring and the cam are respectively located on both sides of the lower part of the locking hook.

[0012] Furthermore, the present invention also proposes a buffer mechanism between the lifting rod and the main unit base. The buffer mechanism includes a buffer connecting rod, a buffer block and a compression elastic element. The buffer connecting rod is fixed to the lower part of the lifting rod, the buffer block is disposed on the main unit base, the buffer connecting rod and the buffer block are correspondingly arranged, and the compression elastic element is disposed between the buffer block and the main unit base.

[0013] Furthermore, the present invention also proposes that the main unit base is provided with a controller, the controller being connected to the locking structure via a circuit; the controller being connected to the upper baking pan and / or the lower baking pan via a circuit.

[0014] As can be seen from the above, the present invention achieves stable locking of the baking tray through a locking structure, and combines the lifting device and controller to control the raising and lowering of the food rack, avoiding the food from burning due to continuous high temperature. At the same time, a mechanical transmission structure is used to replace the traditional spring to prevent the elasticity from decaying, and a linkage mechanism is used to achieve precise lifting and lowering control, which is suitable for food of different thicknesses and has significant practicality and reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the upper baking tray after it is opened according to Embodiment 1 of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the upper baking tray when it is closed according to Embodiment 1 of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the upper baking tray after it is opened according to Embodiment 2 of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the upper baking tray when it is opened according to Embodiment 2 of the present invention;

[0020] Figure 6 This is a schematic diagram of the locking structure of the present invention during locking;

[0021] Figure 7 This is a schematic diagram of the locking structure of the present invention after unlocking;

[0022] Figure 8 This is a schematic diagram of the buffer mechanism of the present invention in its non-working state;

[0023] Figure 9 This is a schematic diagram of the working state structure of the buffer mechanism of the present invention.

[0024] In the picture:

[0025] 1. Main unit base; 2. Lifting device; 21. Transmission link one; 22. Transmission link two; 23. First hinge; 24. Second hinge; 25. Third hinge; 26. Fourth hinge; 27. Crank slider; 3. Locking structure; 31. Locking plate; 32. Locking hook; 33. Fifth hinge; 34. Cam; 35. Motor; 36. Return spring; 4. Lower baking tray; 5. Food rack; 6. External gear ring one; 61. Buffer link; 62. Buffer block; 63. Compression elastic element; 7. Torsional elastic element; 8. Upper baking tray; 9. Lifting rod; 10. Drive link; 11. Driving gear; 12. Driven gear. Detailed Implementation

[0026] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0027] In the comparative design, the grill relies on an elastic element to lift the food, but this design suffers from unstable food lifting and the elastic element's tendency to age. For example, when the grill pan is unlocked, the elastic element may suddenly release its elasticity, causing the food to jump out and potentially shift or tip over. Furthermore, under prolonged high temperatures, the elastic element is prone to fatigue failure, leading to a gradual loss of its lifting function.

[0028] To address the aforementioned issues, considering the poor stability of the elastic element, a rigid mechanical structure was considered to replace the elastic element in driving the food tray. To address the issue of elastic force attenuation, an attempt was made to link the lifting lever movement with the lifting device, achieving lifting control through mechanical transmission. Further investigation revealed that the lifting lever's opening action itself can be converted into lifting power, and the rotational motion is transformed into vertical displacement through a linkage mechanism, eliminating dependence on the elastic element and achieving smooth lifting. Based on this, a controller was introduced to coordinate the locking and heating functions, preventing residual heat from affecting the food tray.

[0029] Example 1

[0030] This invention proposes an intelligent grilling appliance including a main unit base 1 and a lifting rod 9. A lower grilling plate 4 is fixed on the main unit base 1, and an upper grilling plate 8 is fixed on the lifting rod 9. The lifting rod 9 is hinged to the main unit base 1, and a torsional elastic element 7 is provided between the two. A locking structure 3 is provided between the upper grilling plate 8 and the main unit base 1 for closing the grilling cavity. A food tray 5 is provided above the lower grilling plate 4, and a lifting device 2 is provided between the main unit base 1 and the food tray 5. The lifting rod 9 drives the lifting device 2 to move up and down. The controller is electrically connected to the locking structure 3 and the lower grilling plate 4 and / or the upper grilling plate 8.

[0031] The lifting lever 9 is a rigid rod connected to the main unit 1 via a hinge shaft. It can be made of metal and is used to support the upper baking tray 8 and transmit mechanical driving force. The torsional elastic element 7 is a component that provides rotational restoring force, such as a torsion spring. It is installed at the hinge shaft and drives the lifting lever 9 to open automatically after the locking structure 3 is unlocked. The locking structure 3 is a mechanical locking device, such as an electromagnetic lock or a mechanical latch, used to fix the upper baking tray 8 and the lower baking tray 4 in a closed state. The lifting device 2 is a transmission component composed of a linkage mechanism, such as a parallel four-bar linkage, which can convert the rotational motion of the lifting lever 9 into the vertical up-and-down displacement of the food tray 5. The controller is an embedded control module, such as a microcontroller, used to synchronously control the opening and closing of the locking structure 3 and the heating state of the lower baking tray 4 and / or the upper baking tray 8.

[0032] Specifically, when the locking structure 3 unlocks, the torsional elastic element 7 drives the lifting rod 9 to rotate upwards and open. The lifting rod 9, through the drive linkage 10, moves the lifting device 2 upwards, causing the food tray 5 to rise smoothly away from the lower baking pan 4. During this process, the lifting device 2 moves up and down linearly to prevent the food from suddenly bouncing up. When cooking is required, the lifting rod 9 is pressed down, and the lifting rod 9, through the drive linkage 10, pushes the lifting device downwards, causing the food tray 5 to fit against the lower baking pan 4. It should be noted that the lifting rod 9 can also be directly connected to the lifting device 2. The controller simultaneously cuts off the power to the lower baking pan 4 when unlocking to prevent residual heat from causing the food to burn.

[0033] Compared to the comparative solution, which relies on elastic elements to directly lift the food tray, this solution uses a lifting rod to drive a rigid linkage mechanism to achieve lifting and lowering. The mechanical structure has better stability than elastic elements, avoiding performance degradation caused by material fatigue. The controller integrates locking and heating control, solving the problem of asynchronous manual operation and temperature control in traditional equipment.

[0034] Through the above technical solutions, the present invention achieves smooth lifting and lowering of the food tray 5, eliminating the problem of food displacement caused by jumping lifting; the mechanical transmission structure is resistant to high temperature and has no elastic decay, significantly extending the service life of the equipment; the controller automatically coordinates the opening and closing of the baking tray and the heating state to prevent the food from being continuously heated by residual heat.

[0035] The present invention further proposes a lifting device 2 including a first transmission link 21 and a second transmission link 22. The lower end of the first transmission link 21 is hinged to the main body 1 via a first hinge 23, and the upper end of the first transmission link 21 is hinged to the food tray 5 via a second hinge 24. The lower end of the second transmission link 22 is hinged to the main body 1 via a third hinge 25, and the upper end of the second transmission link 22 is hinged to the food tray 5 via a fourth hinge 26. The upper extension of the second transmission link 22 is connected to the lower part of the lifting rod 9 via a crank slider 27. The first transmission link 21 and the second transmission link 22 are inclined toward the lifting rod 9.

[0036] The first transmission link 21 and the second transmission link 22 constitute a double-link mechanism, forming a planar four-bar linkage through four sets of hinges. This mechanism constrains the lifting trajectory of the food tray 5 to be a planar parallel motion, preventing deflection or tilting during lifting. The crank-slider 27 is a mechanism that converts rotational motion into linear motion. For example, it can employ a structure where a sliding pin engages with a guide rail groove, converting the rotational motion of the lifting rod 9 into linear displacement of the food tray 5. The inclined arrangement of the first transmission link 21 and the second transmission link 22 creates an angle between the axis of the second transmission link 22 and the rotation center of the lifting rod 9, for example, an angle of 15° to 45°, to optimize the transmission path and improve thrust transmission efficiency.

[0037] Specifically, when the lifting lever 9 is pressed down by an external force, its rotational motion drives the transmission link 22 through the crank slider 27, producing a linear displacement. Under the constraint of four sets of hinges, the double-link mechanism drives the food tray 5 to move parallel downwards and close to the lower baking pan 4. When the locking structure 3 is unlocked, the lifting lever 9 automatically rebounds under the action of the torsional elastic element 7, pulling the transmission link 22 in the opposite direction through the crank slider 27. The double-link mechanism drives the food tray 5 to maintain a horizontal state and lift smoothly. The parallelogram structure formed by the four-bar linkage ensures that the food tray 5 maintains a fixed posture during the lifting process, preventing the food from shifting due to the tilt of the tray.

[0038] The present invention further proposes that the lower part of the lifting rod 9 is fixedly connected to the driving link 10, and the upper extension end of the transmission link 22 is connected to the driving link 10 through the crank slider 27.

[0039] The drive link 10 is a rod-shaped component rigidly connected to the lifting rod 9. It can be implemented using metal rod welding or bolt fixing, and is used to convert the rotational motion of the lifting rod 9 into linear displacement. Specifically, when the lifting rod 9 rotates around the hinge point, the drive link 10 rotates synchronously with the lifting rod 9 and generates linear displacement. This linear displacement is transmitted to the upper extension end of the transmission link 22 via the crank-slider 27, forcing the transmission link 22 to swing around the third hinge 25. The swinging of the transmission link 22 causes the food tray 5 to rise and fall vertically, allowing the food tray 5 to move away from or closer to the lower baking tray 4. The transmission link 1 21 and the transmission link 2 22 form a parallel four-bar linkage, ensuring that the food tray remains horizontal during the rising and falling process.

[0040] The present invention further proposes that the distance from the first hinge 23 to the second hinge 24 is equal to the distance from the third hinge 25 to the fourth hinge 26.

[0041] Specifically, the first hinge 23 refers to the hinge point between the transmission link 21 and the main unit 1, and the second hinge 24 refers to the hinge point connecting the transmission link 21 and the food tray 5. The first hinge 23 provides a rotational support point for the transmission link 21, and the second hinge 24 transmits the traction force of the lifting device 2 on the food tray 5. The third hinge 25 refers to the hinge point between the transmission link 22 and the main unit 1, and the fourth hinge 26 refers to the hinge point connecting the transmission link 22 and the food tray 5. The third hinge 25 provides a rotational support point for the transmission link 22, and the fourth hinge 26 transmits the traction force of the lifting device 2 on the food tray 5.

[0042] Specifically, when the lifting lever 9 drives the lifting device 2, the first transmission link 21 and the second transmission link 22 use the first hinge 23 and the third hinge 25 as rotational support points, respectively. The movement trajectories of the first transmission link 21 and the second transmission link 22 are constrained to synchronous rotation, effectively achieving smooth lifting and lowering of the food tray. During the lifting process, the food tray 5 remains horizontal, and its contact surface with the lower baking pan 4 is evenly separated; during the pressing process, the food tray 5 adheres to the lower baking pan 4 in a parallel posture, ensuring even contact of the heated food surface.

[0043] The present invention further proposes that the first transmission link 21 and the second transmission link 22 be arranged in parallel.

[0044] Two sets of parallel connecting rods form a parallelogram mechanism under the drive of the lifting rod, ensuring that the angular displacement of the two sets of connecting rods remains consistent.

[0045] Specifically, when the lifting lever 9 drives the crank slider 27 to produce linear displacement, the upper extension of the second transmission link 22 is also displaced by the traction of the crank slider 27. Since the first transmission link 21 and the second transmission link 22 are arranged in parallel, the two sets of links form a completely symmetrical parallelogram motion trajectory during lifting or lowering. This structure ensures that the food tray 5 remains horizontal during lifting and lowering, preventing asynchronous lifting speeds on both sides of the tray due to differences in the tilt angle of the links.

[0046] The present invention further proposes a locking structure 3 including a locking hook 32, a locking plate 31, a motor 35 and a cam 34. The locking hook 32 is hinged to the main unit 1 via a fifth hinge 33, and the locking plate 31 is fixedly mounted on the upper baking tray 8. The motor 35 is electrically connected to the controller, and the motor 35 drives the cam 34 to rotate. A return spring 36 is provided between the lower part of the locking hook 32 and the main unit 1. The return spring 36 and the cam 34 are respectively located on both sides of the lower part of the locking hook 32.

[0047] The locking hook 32 is a metal component that achieves rotational movement through a hinge, and can be made of stainless steel stamping. Its end has a hook-shaped structure that matches the locking plate. The locking plate 31 is a metal positioning component fixed to the upper baking pan 8, and can be made of a grooved sheet metal part, used to form a mechanical interlock with the locking hook. The cam 34 is a transmission component with an asymmetrical profile, and can be made of nylon injection molding. Its outer edge curve is optimized to achieve precise displacement control of the locking hook. The return spring 36 is an elastic element that provides a counterforce, and can be made of a helical compression spring, with its two ends connected to the lower part of the locking hook 32 and the main body base, respectively.

[0048] Specifically, when the controller issues an unlock command, the motor 35 drives the cam 34 to rotate clockwise. The outer edge of the cam 34 pushes the locking hook to rotate clockwise around the fifth hinge 33, causing the hook-shaped structure to disengage from the groove of the locking plate 31. At this time, the return spring 36 is compressed and stored energy, the mechanical interlock between the locking hook 32 and the locking plate 31 is released, and the upper baking tray 8 can be opened freely. When locking is required, the motor 35 drives the cam 34 to reset counterclockwise, the return spring 36 releases its stored energy and pushes the locking hook 32 to rotate counterclockwise, and the hook-shaped structure re-embeds into the groove of the locking plate 31 to complete the locking.

[0049] The present invention further proposes that a buffer mechanism 6 is provided between the lifting rod 9 and the main unit base 1. The buffer mechanism 6 includes a buffer connecting rod 61, a buffer block 62 and a compression elastic element 63. The buffer connecting rod 61 is fixed to the lower part of the lifting rod 9, the buffer block 62 is provided on the main unit base 1, the buffer connecting rod 61 and the buffer block 62 are correspondingly arranged, and the compression elastic element 63 is provided between the buffer block 62 and the main unit base 1.

[0050] The buffer link 61 is a rigid rod-shaped component fixedly connected to the lifting rod 9, which can be made of metal or high-strength plastic and is used to transmit impact force following the movement trajectory of the lifting rod 9. The buffer block 62 is a block-shaped component set on the main unit base 1 and in contact with the buffer link 61, which can be made of rubber or silicone and is used to absorb kinetic energy through deformation upon contact. The compression elastic element 63 is an elastic body installed between the buffer block 62 and the main unit base 1, which can be made of a coil spring or an elastic washer and is used to convert the impact force into elastic potential energy through compression deformation.

[0051] Specifically, when the lifting rod 9 is opened by the torsional elastic element, the buffer link 61 contacts the buffer block 62 along the rotation path of the lifting rod 9. After being impacted, the buffer block 62 pushes the compression elastic element 63 to deform, and the impact energy is gradually absorbed. When the lifting rod 9 is pressed down and closed by an external force, the buffer link 61 contacts the buffer block 62 again, and the compression elastic element 63 deforms a second time to buffer the reverse impact. The cooperation between the buffer block 62 and the compression elastic element 63 converts the kinetic energy at the end of the lifting rod 9's movement into elastic potential energy, avoiding vibration and noise caused by rigid contact.

[0052] The present invention further proposes a technical solution in which the controller is connected to the baking pan 8 via a circuit.

[0053] Specifically, when the locking structure 3 is unlocked, the controller immediately cuts off the power supply circuit to the upper baking pan 8 and / or the lower baking pan 4 via the circuit connection, stopping its heating and preventing the continuous release of residual heat. When the grilling cavity is closed, the controller synchronously receives real-time temperature data from the upper baking pan 8 and the lower baking pan 4, and determines when to unlock the locking structure 3 based on the set temperature.

[0054] Example 2

[0055] The difference between this embodiment and Embodiment 1 is that the present invention further proposes that the lifting rod 9 of the intelligent grill is provided with a driving gear 11 at the lower part and a driven gear 12 is provided on the main body 1. The driving gear 11 and the driven gear 12 are meshed vertically. The lifting device 2 includes a first transmission link 21 and a second transmission link 22. The lower end of the first transmission link 21 is hinged to the main body 1 through a first hinge 23, and the upper end is hinged to the food tray 5 through a second hinge 24. The lower end of the second transmission link 22 is hinged to the main body through a third hinge 24, and the upper end is hinged to the food tray 5 through a fourth hinge 25. The upper extension of the second transmission link 22 is connected to the upper right part of the driven gear 12 through a crank slider 27. The first transmission link 21 and the second transmission link 22 are inclined towards the lifting rod direction.

[0056] The driving gear 11 is a gear component fixedly connected to the lifting rod 9. The driving gear 11, through its meshing with the driven gear 12, converts the rotational motion of the lifting rod 9 into the linear displacement of the transmission connecting rod 22. The driven gear 12 is a gear component meshing with the driving gear 11. A crank-slider 27 connection point is located on the upper right side of the driven gear 12.

[0057] Specifically, when the lifting lever 9 is pressed down, the driving gear 11 drives the driven gear 12 to rotate clockwise, and the crank slider 27 moves downward in a circular motion with the driven gear 12. The linear displacement of the crank slider 27 pushes the upper end of the second transmission link 22 to move in the inclined direction. At the same time, the second transmission link 22 swings downward around the third hinge 24, and the first transmission link 21 swings synchronously under the constraint of the first hinge 23. The coordinated movement of the two links causes the food tray 5 to descend smoothly in the vertical direction to be close to the lower baking tray 4. When the locking structure 3 is unlocked, the lifting lever 9 rotates in the opposite direction under the action of the torsional elastic element 7. The driving gear 11 drives the driven gear 12 to rotate counterclockwise, and the crank slider 27 pulls the second transmission link 22 to move in the opposite direction. The two links drive the food tray to rise at a constant speed away from the lower baking tray 4.

[0058] Compared to the comparative solution, which relies on an elastic element to directly lift the food tray, this solution suffers from unstable lifting height due to elasticity decay. This solution utilizes a gear-driven transmission and a double-linkage mechanism to create a rigid mechanical linkage, eliminating the effects of elastic element aging. Compared to spring-jump lifting, the crank-slider and gear combination provides the food tray with a continuous and controllable movement trajectory, preventing food displacement or tipping due to sudden bounces.

[0059] Through the above technical solution, the present invention enables the food tray to rise smoothly and evenly after unlocking, eliminating the problem of lifting failure caused by the weakening of elasticity of traditional elastic elements.

[0060] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these modifications are within the scope of protection of the present invention.

Claims

1. A smart grill, comprising a main base (1) and a lifting rod (9), wherein a lower grill pan (4) is fixedly mounted on the main base (1), an upper grill pan (8) is fixedly mounted on the lifting rod (9), the lifting rod (9) is hinged to the main base (1), and a torsional elastic element (7) is provided between the lifting rod (9) and the main base (1); characterized in that, A locking structure (3) is provided between the upper baking pan (8) and the main unit (1). The locking structure (3) is used to lock the upper baking pan (8) onto the lower baking pan (4), so that the upper baking pan (8) and the lower baking pan (4) are paired to form a grilling cavity. A food tray (5) is provided above the lower baking tray (4), and a lifting device (2) is provided between the main unit base (1) and the food tray (5). The lifting device (2) is driven to be connected to the lifting rod (9) so that the lifting rod (9) can drive the lifting device (2) to move up or down. When the locking structure (3) is unlocked, the lifting rod (9) is opened under the action of the torsional elastic element (7), and the lifting rod (9) drives the lifting device (2) to move upward, thereby raising the food tray (5) away from the lower baking tray (4); When the lifting lever (9) is pressed down, the lifting lever (9) drives the lifting device (2) to move down, so that the food tray (5) is close to the lower baking tray (4).

2. The intelligent grill according to claim 1, characterized in that, The lifting device (2) includes a first transmission link (21) and a second transmission link (22). The lower end of the first transmission link (21) is hinged to the main body base (1) via a first hinge (23), and the upper end of the first transmission link (21) is hinged to the food tray (5) via a second hinge (24). The lower end of the second transmission link (22) is hinged to the main body base (1) via a third hinge (25), and the upper end of the second transmission link (22) is hinged to the food tray (5) via a fourth hinge (26). The extended upper end of the second transmission link (22) is connected to the lower part of the lifting rod (9) via a crank slider (27). The first transmission link (21) and the second transmission link (22) are inclined toward the lifting rod (9).

3. The intelligent grill according to claim 2, characterized in that, The lower part of the lifting rod (9) is fixedly connected to the driving link (10), and the upper extension end of the transmission link two (22) is connected to the driving link (10) through the crank slider (27).

4. The intelligent grill according to claim 1, characterized in that, The lifting rod (9) is provided with a drive gear (11) at its lower part, and the main base (1) is provided with a driven gear (12). The drive gear (11) and the driven gear (12) are meshed vertically. The lifting device (2) includes a first transmission link (21) and a second transmission link (22). The lower end of the first transmission link (21) is hinged to the main base (1) through a first hinge (23), and the upper end of the first transmission link (21) is hinged to a second hinge (24). On the food tray (5); the lower end of the second transmission link (22) is hinged to the main body base (1) through the third hinge (25), and the upper end of the second transmission link (22) is hinged to the food tray (5) through the fourth hinge (26); the upper extension of the second transmission link (22) is connected to the upper right part of the driven gear (12) through the crank slider (27); the first transmission link (21) and the second transmission link (22) are inclined towards the lifting rod (9).

5. The intelligent grill according to any one of claims 2-4, characterized in that, The distance from the first hinge (23) to the second hinge (24) is equal to the distance from the third hinge (25) to the fourth hinge (26).

6. The intelligent grill according to claim 5, characterized in that, The first transmission link (21) and the second transmission link (22) are arranged in parallel.

7. The intelligent grill according to any one of claims 1-4, characterized in that, The locking structure (3) includes a locking hook (32), a locking plate (31), a motor (35), and a cam (34). The locking hook (32) is hinged to the main unit (1) via a fifth hinge (33). The locking plate (31) is fixed on the upper baking tray (8). The motor (35) is electrically connected to the controller. The motor (35) drives the cam (34) to rotate. A return spring (36) is provided between the lower part of the locking hook (32) and the main unit (1). The return spring (36) and the cam (34) are respectively located on both sides of the lower part of the locking hook (32).

8. The intelligent grill according to any one of claims 1-4, characterized in that, A buffer mechanism (6) is provided between the lifting rod (9) and the main unit base (1). The buffer mechanism (6) includes a buffer connecting rod (61), a buffer block (62) and a compression elastic element (63). The buffer connecting rod (61) is fixed to the lower part of the lifting rod (9). The buffer block (62) is provided on the main unit base (1). The buffer connecting rod (61) and the buffer block (62) are correspondingly arranged. The compression elastic element (63) is provided between the buffer block (62) and the main unit base (1).

9. The intelligent grill according to claim 1, characterized in that, The main unit (1) is equipped with a controller, which is connected to the locking structure (3) via a circuit; the controller is connected to the upper baking pan (8) and / or the lower baking pan (4) via a circuit.

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