Baking function cooking device with forced discharging function and cooking all-in-one machine

Abstract

The invention relates to a baking function cooking device with a forced exhaust function and a cooking all-in-one machine, fan blades of an air heater comprise a supporting plate, first blades, second blades, a first elastic reset piece and a second elastic reset piece, under the action of wind resistance generated by clockwise rotation of the fan blades, all the first blades are kept at the initial height, and all the second blades are kept at the second elastic reset piece; when the fan blade rotates anticlockwise, the first elastic reset piece is kept in an unstressed state, the height of each second blade is synchronously adjusted to be maximum, under the action of wind resistance generated by the fan blade rotating anticlockwise, the height of each first blade is synchronously adjusted to be maximum, the height of each second blade is kept in an initial state, and the second elastic reset piece is kept in an unstressed state. By adjusting the rotating direction of the fan blades, the height of each first blade and the height of each second blade can be adjusted at the same time through wind resistance generated by rotation, so that the hot air internal circulation air volume and the induced air volume of the inner cavity of the inner container can be adjusted according to the humidity in the inner cavity of the inner container, the humidity discharging speed of the inner container is adjusted, and the cooking effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of cooking devices, and in particular to a cooking device with a grilling function and a cooking all-in-one machine with a strong exhaust function. Background Art

[0002] Ovens and other cooking devices with baking functions use heat radiation and hot air circulation to bake food, such as the Chinese utility model patent with patent number ZL202123188610.3 (authorization announcement number CN216776756U); Chinese utility model patent with patent number ZL 202220402969.1 (authorization announcement number CN217852507U), etc. Specifically, a hot air blower is arranged on the back of the inner pot of the cooking device, a hot air baffle is arranged on the rear side of the inner cavity of the inner pot, and the hot air baffle and the back plate of the inner pot form a hot air chamber, the fan blades of the hot air blower are located in the hot air chamber, and a heating pipe is arranged around the outer periphery of the fan blades. In the cooking state, the fan blades of the hot air blower rotate, and the gas in the inner cavity of the liner enters the hot air chamber through the air inlet on the hot air baffle. After the gas is heated in the hot air chamber, it flows back to the inner cavity of the liner under the action of the centrifugal force of the fan blades, thereby forming a hot air circulation in the inner cavity of the liner to heat the food in the liner. Among them, the air volume of the fan blades of the hot air blower affects the speed of the hot air circulation, and then affects the cooking efficiency. The air volume of the fan blade is related to the height of the blade (that is, the width of the blade along the axial direction). The larger the blade height, the greater the air volume of the fan blade.

[0003] In addition, when baking food with a high moisture content, in order to avoid excessive humidity inside the inner pot, a blowing method is generally used to achieve forced exhaust of moisture in the inner pot. For example, the Chinese utility model patent with patent number ZL202120251000.4 (authorization announcement number CN215502452U) discloses a steaming and baking cooking device, including an inner pot with an air inlet and a heating element for heating the inner pot. The inner pot is also provided with an air outlet, and the air outlet is provided with a blowing component for blowing air into the inner pot through the air outlet. The heating element can generate a first heating heat and a second heating heat with a temperature higher than the first heating heat, and the blowing component works intermittently and has at least two states: in the first state, the blowing component works during the cooking process, and the heating element works with the second heating heat; in the second state, the blowing component works when the cooking is about to end, and the heating element works with the first heating heat.

[0004] However, the existing forced air exhaust method requires an additional air blowing device (generally a blower), and also requires an additional control device (generally a control valve) to control the air volume and start and stop of the forced air exhaust, thereby increasing the production cost of the cooking device. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a cooking device with a grilling function and a forced exhaust function in view of the prior art, which can realize the control of the blast volume without the need for an additional control device.

[0006] The second technical problem to be solved by the present invention is to provide a cooking device with a grilling function and a forced exhaust function in view of the prior art, which can control the air volume without the need for an additional control device and has a good cooking effect.

[0007] The third technical problem to be solved by the present invention is to provide an all-in-one cooking machine with the above cooking device in view of the prior art.

[0008] The technical solution adopted by the present invention to solve at least one of the above technical problems is: a cooking device with a grilling function and a forced exhaust function, comprising an inner pot, a hot air chamber is provided on the side wall of the inner pot and a hot air blower is installed, the fan blades of the hot air blower are located in the hot air chamber, and the hot air chamber has an air inlet and an air inlet and an air return port respectively connected to the outside, wherein the air inlet and the air return port are respectively located in the inner cavity of the inner pot, and the air inlet is arranged on one side of the fan blade and directly opposite to the fan blade, and the return air port is arranged around the outer periphery of the air inlet, and the air inlet is arranged on the other side of the fan blade and opposite to the fan blade, and is characterized in that

[0009] The fan blades of the hot air blower include a support plate, a first blade and a second blade, wherein the first blade is movably arranged on the front side of the support plate at intervals along the circumferential direction with the rotation axis of the fan blade as the center, and similarly, the second blade is movably arranged on the back side of the support plate at intervals along the circumferential direction with the rotation axis of the fan blade as the center, and the height of each first blade and each second blade relative to the surface of the support plate where the blade is located is adjustable.

[0010] The first and second elastic return members are also included. In the initial state, the heights of the first blades and the second blades are the smallest, and the elastic return members are in a state of no force.

[0011] Under the wind resistance generated by the clockwise rotation of the fan blades, each first blade is maintained at an initial height, the first elastic reset member is maintained in an unstressed state, and the height of each second blade is synchronously adjusted to the maximum, and the second elastic reset member is deformed so that each second blade has a tendency to return to the initial state.

[0012] Under the effect of wind resistance generated by the counterclockwise rotation of the fan blades, the height of each first blade is synchronously adjusted to the maximum, and the first elastic return member is deformed so that each first blade has a tendency to return to its initial state, while the height of each second blade remains in its initial state, and the second elastic return member remains in an unstressed state.

[0013] Further, each of the first blades is respectively arranged along the radial direction of the fan blade, and each of the first blades includes a first sheet body and a second sheet body located on one side of the first sheet body along the circumferential direction, the first sheet body and the second sheet body respectively extend along the length direction of the first blade where they are located, each of the first sheet body and each of the second sheet bodies are straight plates, and the width of the first sheet body is smaller than that of the second sheet body,

[0014] When the height of each first blade is the smallest, the first blade in each first blade is perpendicular to the front surface of the support plate, and the second blade is in contact with the front surface of the support plate. At this time, the actual height of each first blade is the height of the corresponding first blade;

[0015] When the height of each first blade is at its maximum, the first sheet in each first blade fits the front surface of the support plate, and the second sheet is perpendicular to the front surface of the support plate. At this time, the actual height of each first blade is the height of the corresponding second sheet.

[0016] Furthermore, the first sheet and the second sheet of each first blade are arranged perpendicularly, so that the height of the corresponding first blade can be adjusted conveniently through the movement of the first sheet and the second sheet of each first blade.

[0017] Furthermore, the side edge of the first sheet of each of the first blades and the corresponding side edge of the second sheet extend radially along the blade, and the two are fixed to each other along the length direction to form a first swing axis, and each of the first blades is swingably set on the front of the support plate through the corresponding first swing axis. In this way, the actual height of each of the first blades can be adjusted by swinging each of the first blades so that one of the sheets is perpendicular to the front of the support plate, and in the initial state, the wind resistance generated by the clockwise rotation of the blade acts on the outer surface of each of the first sheets (relative to the first blade where it is located), and at this time, due to the mutual limiting effect between each of the second sheets and the front of the support plate, each of the first sheets is maintained in the initial state (i.e., the minimum height state); the wind resistance generated by the counterclockwise rotation of the blade acts on the inner surface of each of the first sheets, and at this time, the wind resistance pushes each of the first blades to swing with its first swing axis as the center, and the first sheet of each of the first blades fits the front of the support plate, and the second sheet is perpendicular to the front of the support plate. At this time, the width of each of the first sheets is the height of the corresponding first blade, that is, the height of each of the first blades is adjusted to the maximum.

[0018] Furthermore, each of the first blades is an integral part, so that the structure of each of the first blades can be firm.

[0019] Furthermore, each of the second blades is a straight plate, and a side edge of each second blade extends along the radial direction of the fan blade to form a second swing axis, and each second blade is swingably arranged on the back of the support plate through the corresponding second swing axis. In this way, the actual height of each second blade can be adjusted by swinging each second blade, and the minimum height of each second blade is zero. When the height of each second blade is zero, the air intake of the air inlet is zero, so that the opening and closing control of the air inlet can be achieved without setting up a control device for controlling the opening and closing of the air inlet.

[0020] Furthermore, a first guide shaft is fixed to one end of each of the first blades, and the fan blades are also provided with first guide grooves corresponding to the first guide shafts, each of the first guide grooves is arc-shaped, and each of the first guide shafts is inserted into the corresponding first guide groove and can move back and forth along the corresponding first guide groove.

[0021] When the height of each first blade is at its maximum, each first guide shaft abuts against one end of the corresponding first guide groove, and when the height of each first blade is at its minimum, each first guide shaft abuts against the other end of the corresponding first guide groove. The cooperation between each first guide shaft and the corresponding first guide groove can guide the swing of each first blade relative to the front of the support plate, so that each first blade can swing smoothly and synchronously, and at the same time, each first blade can be stably limited to the maximum and minimum height states, thereby improving the reliability of height adjustment of each first blade.

[0022] Furthermore, the first elastic reset member is a coil spring arranged at the center of the front side of the support plate, and each first guide shaft is fixed to the inner side end of each first blade, and the inner mounting end of the first elastic reset member is fixed to the front side of the support plate, while the outer output end is linked to each first guide shaft through the first transmission mechanism. In this way, the first elastic reset member can act on each first blade synchronously, so that the first blade at the maximum height state can be synchronously reset to the initial state.

[0023] Furthermore, a circular first annular groove centered on the rotation axis of the fan blade is axially protruded at the center of the front side of the support plate, and the first elastic reset member is accommodated inside the first annular groove.

[0024] The first transmission mechanism comprises the first annular groove and a first annular block circumferentially embedded in the first annular groove and capable of sliding along the first annular groove, and each first guide groove is circumferentially spaced apart on the outer annular wall of the first annular groove, and the inner annular wall of the first annular groove is provided with a first sliding groove for the output end of the first elastic reset member to be inserted and move back and forth,

[0025] The outer side of the first annular block is respectively provided with first outer guide grooves corresponding to each first guide groove and for the end of the corresponding first guide shaft to be inserted and move back and forth, while the inner side of the first annular block is provided with first inner guide grooves corresponding to the first sliding groove and for the output end of the first elastic reset member to be inserted and move back and forth. Under the action of wind resistance generated by the clockwise rotation of the fan blades, the first guide shaft of each first blade respectively abuts against the corresponding end of the first guide groove where it is located, and at the same time abuts against the corresponding end of the first outer guide groove where it is located. In addition, the output end of the first elastic return member abuts against the corresponding end of the first inner guide groove, and the first elastic return member is in an unstressed state; under the action of wind resistance generated by the counterclockwise rotation of the fan blades, the first guide shaft of each first blade respectively moves along the first guide groove where it is located until it abuts against the other end of the first guide groove, and at the same time moves along the first outer guide groove where it is located until it abuts against the other end of the first outer guide groove. Under the transmission of the first annular block, the output end of the first elastic return member synchronously moves along the first inner guide groove until it abuts against the other end of the first inner guide groove, thereby realizing synchronous adjustment of the height of each first blade from the minimum state to the maximum state.

[0026] Furthermore, each of the first guide grooves is respectively opened on the outer ring wall of the first ring groove, and each of the first outer guide grooves is respectively formed by the outer peripheral surface of the first ring block being radially concave and axially extending.

[0027] The first sliding groove extends along the circumferential direction of the inner ring wall of the first annular groove, and the first inner guide groove is formed by the radial inward concave of the inner circumferential surface of the first annular block, so that the first annular block can better transmit the action of each first guide shaft to the first elastic reset member, or better transmit the elastic force of the first elastic reset member to each first guide shaft.

[0028] Furthermore, a second guide shaft is fixed to one end of each of the second blades, and the fan blades are also provided with second guide grooves corresponding to the second guide shafts, each of the second guide grooves is arc-shaped, and each of the second guide shafts is inserted into the corresponding second guide groove and can move back and forth along the corresponding second guide groove.

[0029] When the height of each second blade is at its maximum, each second guide shaft abuts against one end of the corresponding second guide groove, and when the height of each second blade is at its minimum, each second guide shaft abuts against the other end of the corresponding second guide groove. The cooperation between each second guide shaft and the corresponding second guide groove can guide the swing of each second blade relative to the back of the support plate, so that each second blade can swing smoothly and synchronously, and at the same time, each second blade can be stably limited to the maximum and minimum height states, thereby improving the reliability of height adjustment of each second blade.

[0030] Furthermore, the second elastic return member is a coil spring arranged at the center of the back side of the support plate, and each second guide shaft is respectively fixed to the inner end of each second blade, the inner mounting end of the above-mentioned second elastic return member is fixed on the back side of the support plate, and the outer output end is respectively linked with each second guide shaft through a second transmission mechanism.

[0031] Furthermore, a circular second annular groove centered on the rotation axis of the fan blade is axially protruded at the center of the back side of the support plate, and the second elastic reset member is accommodated inside the second annular groove.

[0032] The second transmission mechanism comprises the second annular groove and a second annular block circumferentially embedded in the second annular groove and capable of sliding along the second annular groove, and the second guide grooves are circumferentially spaced apart on the outer annular wall of the second annular groove, and the inner annular wall of the second annular groove is provided with a second sliding groove for the output end of the second elastic reset member to be inserted and move back and forth,

[0033] The outer side of the second annular block is respectively provided with second outer guide grooves corresponding to each second guide groove and for the end of the corresponding second guide shaft to be inserted and move back and forth, while the inner side of the second annular block is provided with a second inner guide groove corresponding to the second sliding groove and for the output end of the second elastic reset member to be inserted and move back and forth. When the fan blades rotate clockwise, under the action of the wind resistance generated, the second guide shaft of each second blade moves along the second guide groove until it is against the other end of the second guide groove (relative to the initial state), and at the same time moves along the second outer guide groove until it is against the other end of the second outer guide groove (relative to the initial state). Under the transmission of the second annular block, the output end of the second elastic return member moves synchronously along the second inner guide groove until it is against the other end of the second inner guide groove (relative to the initial state), thereby realizing the synchronous adjustment of the height of each second blade from the minimum state to the maximum state; under the action of the wind resistance generated when the fan blades rotate counterclockwise, the second guide shaft of each second blade swings and respectively against the corresponding end of the second guide groove where it is located, and at the same time against the corresponding end of the second outer guide groove where it is located. In addition, the output end of the second elastic return member is against the corresponding end of the second inner guide groove, and the second elastic return member is in an unstressed state.

[0034] Furthermore, each of the second guide grooves is respectively opened on the outer ring wall of the second ring groove, and each of the second outer guide grooves is respectively formed by the outer peripheral surface of the second ring block being radially concave and axially extending.

[0035] The second sliding groove extends along the circumferential direction of the inner ring wall of the second annular groove, and the second inner guide groove is formed by the radial inward concave of the inner circumferential surface of the second annular block, so that the second annular block can better transmit the action of each second guide shaft to the second elastic reset member, or better transmit the elastic force of the second elastic reset member to each second guide shaft.

[0036] The technical solution adopted to further solve the third technical problem mentioned above is: an all-in-one cooking machine, including a cooking device, characterized in that the cooking device adopts the grilling function cooking device with strong exhaust function as described above.

[0037] Furthermore, it also includes a stove arranged on the cooking device, wherein a heat dissipation channel for dissipating heat from the heating electrical components in the stove is installed in the stove, and the air inlet of the inner pot is fluidly connected to the air outlet of the heat dissipation channel. In this way, the outside air introduced into the inner pot through the air inlet has a certain temperature, which can reduce the influence on the uniformity of the temperature field inside the inner pot compared with the method of directly introducing cold air.

[0038] Compared with the prior art, the advantages of the present invention are: in the state where the fan blades rotate clockwise, under the action of wind resistance, each first blade is maintained at the initial height, the first elastic reset member is maintained in an unstressed state, and the height of each second blade is the maximum, and the second elastic reset member is deformed so that each second blade has a tendency to return to the initial state. At this time, the air volume entering the hot air chamber from the inner cavity of the liner is small, while the air volume entering the hot air chamber from the air inlet is large, so that the proportion of external air in the gas flowing back from the return air outlet to the inner cavity of the liner is greater than the original gas in the inner cavity of the liner, the hot air internal circulation air volume in the inner cavity of the liner is small, while the air induction volume is large, and the moisture in the inner cavity of the liner is squeezed and quickly discharged.

[0039] When the fan blades rotate counterclockwise, under the action of wind resistance, the height of each first blade is the largest, and the first elastic reset member is deformed so that each first blade has a tendency to return to the initial state, while the height of each second blade remains in the initial state, and the second elastic reset member remains unstressed. At this time, the air volume entering the hot air chamber from the inner cavity of the liner is large, while the air volume entering the hot air chamber from the air inlet is small, so that the proportion of the original gas in the inner cavity of the liner in the gas flowing back from the return air inlet to the inner cavity of the liner is greater than that of the outside air, the hot air internal circulation air volume in the inner cavity of the liner is large, while the air induction volume is small, and the moisture in the inner cavity of the liner is slowly discharged.

[0040] It can be seen that the present invention can adjust the height of each first blade and the height of each second blade at the same time by adjusting the rotation direction of the fan blades and utilizing the wind resistance generated by the rotation, thereby being able to adjust the hot air circulation volume and the induced air volume in the inner cavity of the inner pot according to the humidity in the inner cavity of the inner pot, thereby adjusting the dehumidification speed of the inner pot, while achieving both cooking efficiency and dehumidification efficiency, thereby improving the cooking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of a cooking machine according to an embodiment of the present invention;

[0042] Figure 2 is a cross-sectional view of the all-in-one cooking machine according to an embodiment of the present invention;

[0043] Figure 3 for Figure 2 A magnified view of part A;

[0044] Figure 4 This is a schematic diagram of the structure of the fan blades in the clockwise rotating state in the embodiment of the present invention;

[0045] Figure 5 for Figure 4 A schematic diagram of the structure in another direction;

[0046] Figure 6 This is a partial structural exploded view of the fan blades in the clockwise rotating state in the embodiment of the present invention;

[0047] Figure 7 for Figure 6 A schematic diagram of the structure in another direction;

[0048] Figure 8 This is a schematic diagram of the structure of the fan blades in the counterclockwise rotating state in an embodiment of the present invention;

[0049] Fig. 9 for Figure 8 Schematic diagram of the structure in another direction. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below with reference to the accompanying drawings.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is 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. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0052] like Figures 1 to 9As shown, a cooking all-in-one machine includes a cooking device 2 and a stove 1 arranged on the cooking device 2. The cooking device 2 is a cooking device with a grilling function and a forced exhaust function, which includes an inner pot 20, a hot air chamber 30 is provided on the rear side wall of the inner pot 20 and a hot air blower 8 is installed, the fan blade 4 of the hot air blower 8 is located in the hot air chamber 30, and a back heating pipe 33 is provided around the outer periphery of the fan blade 4. In addition, the hot air chamber 30 has an air inlet 21 communicated with the outside, an air inlet 31 and a return air inlet 32, wherein the air inlet 31 and the return air inlet 32 ​​are respectively located in the inner cavity of the inner pot 20, and the air inlet 31 is arranged on one side of the fan blade 4 and directly opposite to the fan blade 4, and the return air inlet 32 ​​is arranged around the outer periphery of the air inlet 31, and the air inlet 21 is arranged on the other side of the fan blade 4 and opposite to the fan blade 4. Specifically, a hot air baffle 3 is provided on the rear inner surface of the inner liner 20 to form the hot air chamber 30 , the air inlet 31 and the return air outlet 32 ​​are respectively opened on the hot air baffle 3 , and the air inlet 21 is opened on the rear side wall of the inner liner 20 .

[0053] Furthermore, the fan blades 4 of the hot air blower 8 include a support plate 40, a first blade 41 and a second blade 42, wherein the support plate 40 is a circular plate, and the first blades 41 are movably arranged on the front surface of the support plate 40 at intervals along the circumferential direction with the rotation axis 81 of the fan blade 4 as the center; similarly, the second blades 42 are movably arranged on the rear surface of the support plate 40 at intervals along the circumferential direction with the rotation axis 81 of the fan blade 4 as the center, and the height of each first blade 41 and each second blade 42 relative to the surface of the support plate 40 where it is located is adjustable.

[0054] Furthermore, the fan blade 4 further includes a first elastic reset member 71 and a second elastic reset member 72. In the initial state, the height of each first blade 41 and each second blade 42 is the smallest, and each elastic reset member is in a non-stressed state. Figure 2 , Figure 4 as well as Figure 5 As shown, under the wind resistance generated by the clockwise rotation (seen from the front to the rear) of the fan blade 4, each first blade 41 is maintained at the initial height, the first elastic reset member 71 is maintained in an unstressed state, and the height of each second blade 42 is synchronously adjusted to the maximum, and the second elastic reset member 72 is deformed so that each second blade 42 has a tendency to return to the initial state; as shown in FIG. Figure 8 and 9 As shown, under the effect of wind resistance caused by the counterclockwise rotation (seen from the front to the rear) of the fan blades 4, the height of each first blade 41 is synchronously adjusted to the maximum, and the first elastic reset member 71 is deformed so that each first blade 41 has a tendency to return to its initial state, while the height of each second blade 42 remains in its initial state, and the second elastic reset member 72 remains in an unstressed state.

[0055] In the state of clockwise rotation of the fan blade 4 in the present invention, under the action of wind resistance, each first blade 41 is maintained at the initial height, the first elastic reset member 71 is maintained in an unstressed state, and the height of each second blade 42 is the maximum, and the second elastic reset member 72 is deformed so that each second blade 42 has a tendency to return to the initial state. At this time, the air volume entering the hot air chamber 30 from the inner cavity of the liner 20 is small, while the air volume entering the hot air chamber 30 from the air inlet 21 is large, so that the proportion of external air in the gas flowing back to the inner cavity of the liner 20 from the return air port 32 is greater than the original gas in the inner cavity of the liner 20, the hot air internal circulation air volume in the inner cavity of the liner 20 is small, while the air induction volume is large, and the moisture in the inner cavity of the liner 20 is squeezed and quickly discharged. When the fan blade 4 rotates counterclockwise, under the action of wind resistance, the height of each first blade 41 is the largest, and the first elastic reset member 71 is deformed so that each first blade 41 has a tendency to return to the initial state, while the height of each second blade 42 remains in the initial state, and the second elastic reset member 72 remains in an unstressed state. At this time, the air volume entering the hot air chamber 30 from the inner cavity of the liner 20 is large, while the air volume entering the hot air chamber 30 from the air inlet 21 is small, so that the proportion of the original gas in the inner cavity of the liner 20 in the gas flowing back from the return air port 32 to the inner cavity of the liner 20 is greater than that of the outside air, the hot air internal circulation air volume in the inner cavity of the liner 20 is large, while the air induction volume is small, and the moisture in the inner cavity of the liner 20 is slowly discharged. It can be seen that the present invention can adjust the height of each first blade 41 and the height of each second blade 42 at the same time by adjusting the rotation direction of the fan blade 4 and utilizing the wind resistance generated by the rotation, so that the hot air internal circulation air volume and the induced air volume in the inner cavity of the inner pot 20 can be adjusted according to the humidity in the inner cavity of the inner pot 20, thereby adjusting the dehumidification speed of the inner pot 20, and at the same time achieving both cooking efficiency and dehumidification efficiency, thereby improving the cooking effect. In this embodiment, the height of each first blade 41 refers to the distance between the front side edge of each first blade 41 and the front surface of the support plate 40, and the height of each second blade 42 refers to the distance between the rear side edge of each second blade 42 and the rear surface of the support plate 40.

[0056] Specifically, in the present embodiment, each of the above-mentioned first blades 41 is respectively arranged along the radial direction of the fan blade 4, and each of the first blades 41 respectively includes a first sheet body 411 and a second sheet body 412 circumferentially located on one side of the first sheet body 411, and the first sheet body 411 and the second sheet body 412 respectively extend along the length direction of the first blade 41 where they are located, and each of the first sheet body 411 and each of the second sheet body 412 are straight plates and the width of the first sheet body 411 is smaller than that of the second sheet body 412. When the height of each first blade 41 is the smallest, the first sheet 411 in each first blade 41 is perpendicular to the front of the support plate 40, and the second sheet 412 is in contact with the front of the support plate 40. At this time, the actual height of each first blade 41 is the height of the corresponding first sheet 411. When the height of each first blade 41 is the largest, the first sheet 411 in each first blade 41 is in contact with the front of the support plate 40, and the second sheet 412 is perpendicular to the front of the support plate 40. At this time, the actual height of each first blade 41 is the height of the corresponding second sheet 412. Preferably, further, the first sheet 411 and the second sheet 412 of each first blade 41 are arranged perpendicularly. This makes it easy to adjust the height of the corresponding first blade 41 through the action of the first sheet 411 and the second sheet 412 of each first blade 41.

[0057] Furthermore, the side edge of the first sheet 411 of each of the first blades 41 and the corresponding side edge of the second sheet 412 extend in the radial direction of the fan blade 4, and the two are fixed to each other along the length direction to form a first swing axis (not shown), and each of the first blades 41 is swingably arranged on the front surface of the support plate 40 through the corresponding first swing axis. In this way, the actual height of each of the first blades 41 can be adjusted by swinging each of the first blades 41 so that one of the sheets is perpendicular to the front surface of the support plate 40. Furthermore, in the initial state, the wind resistance generated by the clockwise rotation of the fan blade 4 acts on the outer surface of each first sheet 411 (relative to the first blade 41 where it is located). At this time, due to the mutual limiting effect between each second sheet 412 and the front of the support plate 40, each first sheet 411 remains in the initial state (i.e., the minimum height state); the wind resistance generated by the counterclockwise rotation of the fan blade 4 acts on the inner surface of each first sheet 411. At this time, the wind resistance pushes each first blade 41 to swing with its first swing axis as the center. The first sheet 411 of each first blade 41 is in contact with the front of the support plate 40, while the second sheet 412 is perpendicular to the front of the support plate 40. At this time, the width of each second sheet 412 is the height of the corresponding first blade 41, that is, the height of each first blade 41 is adjusted to the maximum. Preferably, each of the above-mentioned first blades 41 is an integral piece, so that the structure of each first blade 41 can be firm. Figure 2As shown, the wind resistance generated by the rotation of the fan blade 4 directly acts on the first sheet 411 of each first blade 41. In order to make the wind resistance generated by the rotation of the fan blade 4 better act on each first blade 41, in this embodiment, the inner edges of the first sheet 411 and the second sheet 412 of each first blade 41 are respectively inclined outward from back to front relative to the front surface of the support plate 40, and the angles formed by the two with the first swing axis are equal.

[0058] Furthermore, each of the second blades 42 is a straight plate, and a side edge of each second blade 42 extends along the radial direction of the fan blade 4 to form a second swing axis (not shown), and each second blade 42 is swingably set on the back of the support plate 40 through the corresponding second swing axis. In this way, the actual height of each second blade 42 can be adjusted by swinging each second blade 42, and the minimum height of each second blade 42 is zero. When the height of each second blade 42 is zero, the air intake of the air duct 21 is zero, so that the opening and closing of the air duct 21 can be controlled without setting up a separate control device for controlling the opening and closing of the air duct 21. Figure 2 As shown, the wind resistance generated by the rotation of the fan blade 4 directly acts on each second blade 42. In order to make the wind resistance generated by the rotation of the fan blade 4 better act on each second blade 42, in this embodiment, the inner edge of each second blade 42 is inclined outward from back to front relative to the front surface of the support plate 40.

[0059] Furthermore, the inner side end of each of the first blades 41 is fixed with a first guide shaft 41a (fixed at the inner side end of the first swing shaft in this embodiment), and the fan blade 4 is also provided with a first guide groove 511 corresponding to each of the first guide shafts 41a. Each of the first guide grooves 511 is in an arc shape, and each of the first guide shafts 41a is inserted in the corresponding first guide groove 511 and can move back and forth along the corresponding first guide groove 511. When the height of each of the first blades 41 is at its maximum, each of the first guide shafts 41a abuts against one end of the corresponding first guide groove 511, and when the height of each of the first blades 41 is at its minimum, each of the first guide shafts 41a abuts against the other end of the corresponding first guide groove 511. Through the cooperation of each first guide shaft 41a and the corresponding first guide groove 511, the swing of each first blade 41 relative to the front of the support plate 40 can be guided, so that each first blade 41 can swing smoothly and synchronously, and at the same time, each first blade 41 can be stably limited to the maximum height or minimum height state, thereby improving the reliability of height adjustment of each first blade 41. Preferably, the first elastic reset member 71 is a coil spring arranged at the center along the front of the support plate 40, and each first guide shaft 41a is respectively fixed to the inner side end of each first blade 41, and the mounting end of the inner side of the first elastic reset member 71 is fixed on the front of the support plate 40, and the output end of the outer side is respectively linked with each first guide shaft 41a through the first transmission mechanism 5. In this way, the first elastic reset member 71 can act on each first blade 41 synchronously, so that the first blade 41 in the maximum height state can be synchronously reset to the initial state. In this embodiment, the central angle of each first guide groove 511 is 90°.

[0060] Furthermore, a circular first annular groove 51 centered on the rotating shaft 81 of the fan blade 4 is axially protruded at the center of the front side of the support plate 40, and the first elastic reset member 71 is accommodated inside the first annular groove 51. The first transmission mechanism 5 includes the first annular groove 51 and a first annular block 52 circumferentially embedded in the first annular groove 51 and capable of sliding along the first annular groove 51, and each first guide groove 511 is circumferentially spaced apart on the outer annular wall of the first annular groove 51, and the inner annular wall of the first annular groove 51 is provided with a first sliding groove 512 for the output end of the first elastic reset member 71 to be inserted and move back and forth. The outer side of the above-mentioned first annular block 52 is respectively provided with a first outer guide groove 521 corresponding to each first guide groove 511 and for the end of the corresponding first guide shaft 41a to be inserted and moved back and forth, and the inner side of the first annular block 52 is provided with a first inner guide groove 522 corresponding to the above-mentioned first sliding groove 512 and for the output end of the above-mentioned first elastic reset member 71 to be inserted and moved back and forth. Under the action of wind resistance generated by the clockwise rotation of the fan blade 4, the first guide shaft 41a of each first blade 41 respectively abuts against the corresponding end of the first guide groove 511 where it is located, and at the same time abuts against the corresponding end of the first outer guide groove 521 where it is located. In addition, the output end of the first elastic return member 71 abuts against the corresponding end of the first inner guide groove 522, and the first elastic return member 71 is in an unstressed state; under the action of wind resistance generated by the counterclockwise rotation of the fan blade 4, the first guide shaft 41a of each first blade 41 moves along the first guide groove 511 where it is located until it abuts against the other end of the first guide groove 511, and at the same time moves along the first outer guide groove 521 where it is located until it abuts against the other end of the first outer guide groove 521. Under the transmission of the first annular block 52, the output end of the first elastic return member 71 moves synchronously along the first inner guide groove 522 until it abuts against the other end of the first inner guide groove 522, thereby realizing the synchronous adjustment of the height of each first blade 41 from the minimum state to the maximum state. Preferably, each of the first guide grooves 511 is respectively formed on the outer ring wall of the first annular groove 51, and each of the first outer guide grooves 521 is respectively formed by radially concave and axially extending the outer peripheral surface of the first annular block 52. The first sliding groove 512 extends along the circumferential direction of the inner ring wall of the first annular groove 51, and the first inner guide groove 522 is formed by radially concave the inner peripheral surface of the first annular block 52. Thus, the first annular block 52 can better transmit the action of each first guide shaft 41a to the first elastic reset member 71, or better transmit the elastic force of the first elastic reset member 71 to each first guide shaft 41a.

[0061] In addition, in this embodiment, the outer end of each first blade 41 has a radially extending first rotating shaft 41b (fixed to the outer end of the first swing shaft in this embodiment), and the front surface of the support plate 40 is provided with a first shaft seat 43 corresponding to each first rotating shaft 41b, and each first rotating shaft 41b is rotatably connected to the corresponding first shaft seat 43. Therefore, each first blade 41 can swing more smoothly relative to the corresponding first swing shaft.

[0062] Furthermore, the inner ends of the second blades 42 are respectively fixed with second guide shafts 42a (fixed to the inner ends of the second swing shaft in this embodiment), and the fan blades 4 are also provided with second guide grooves 611 corresponding to the second guide shafts 42a one by one, and the second guide grooves 611 are all in an arc shape, and the second guide shafts 42a are respectively inserted in the corresponding second guide grooves 611 and can move back and forth along the corresponding second guide grooves 611. When the height of each second blade 42 is the largest, each second guide shaft 42a is respectively against one end of the corresponding second guide groove 611, and when the height of each second blade 42 is the smallest, each second guide shaft 42a is respectively against the other end of the corresponding second guide groove 611. Through the cooperation of each second guide shaft 42a and the corresponding second guide groove 611, the swing of each second blade 42 relative to the back of the support plate 40 can be guided, so that each second blade 42 can swing smoothly and synchronously, and at the same time, each second blade 42 can be stably limited to the maximum height and minimum height state, thereby improving the reliability of height adjustment of each second blade 42. Preferably, the second elastic reset member 72 is a coil spring arranged at the center of the back of the support plate 40, and each second guide shaft 42a is respectively fixed to the inner side end of each second blade 42, and the inner mounting end of the second elastic reset member 72 is fixed on the back of the support plate 40, and the outer output end is respectively linked to each second guide shaft 42a through the second transmission mechanism 6. In this embodiment, the central angle of each second guide groove 611 is 90°.

[0063] Furthermore, a circular second annular groove 61 centered on the rotating shaft 81 of the fan blade 4 is axially protruded at the center of the back side of the support plate 40, and the second elastic reset member 72 is accommodated inside the second annular groove 61. The second transmission mechanism 6 includes the second annular groove 61 and a second annular block 62 circumferentially embedded in the second annular groove 61 and capable of sliding along the second annular groove 61, and each second guide groove 611 is circumferentially spaced apart on the outer annular wall of the second annular groove 61, and the inner annular wall of the second annular groove 61 is provided with a second sliding groove 612 for the output end of the second elastic reset member 72 to be inserted and move back and forth. The outer side of the above-mentioned second annular block 62 is respectively provided with second outer guide grooves 621 corresponding to each second guide groove 611 and for the end of the corresponding second guide shaft 42a to be inserted and moved back and forth, and the inner side of the second annular block 62 is provided with a second inner guide groove 622 corresponding to the above-mentioned second sliding groove 612 and for the output end of the above-mentioned second elastic reset member 72 to be inserted and moved back and forth. When the fan blade 4 rotates clockwise, under the action of the wind resistance generated, the second guide shaft 42a of each second blade 42 moves along the second guide groove 611 until it is against the other end of the second guide groove 611 (relative to the initial state), and at the same time moves along the second outer guide groove 621 until it is against the other end of the second outer guide groove 621 (relative to the initial state). Under the transmission of the second annular block 62, the output end of the second elastic return member 72 moves synchronously along the second inner guide groove 622 until it is against the other end of the second inner guide groove 622 (relative to the initial state), thereby realizing the synchronous adjustment of the height of each second blade 42 from the minimum state to the maximum state; under the action of the wind resistance generated by the counterclockwise rotation of the fan blade 4, each second blade 42 swings and the second guide shaft 42a is against the corresponding end of the second guide groove 611, and at the same time against the corresponding end of the second outer guide groove 621. In addition, the output end of the second elastic return member 72 is against the corresponding end of the second inner guide groove 622, and the second elastic return member 72 is in a non-stressed state. Preferably, each of the second guide grooves 611 is respectively formed on the outer ring wall of the second annular groove 61, and each of the second outer guide grooves 621 is respectively formed by radially concave and axially extending the outer circumferential surface of the second annular block 62. The second sliding groove 612 extends along the circumferential direction of the inner ring wall of the second annular groove 61, and the second inner guide groove 622 is formed by radially concave the inner circumferential surface of the second annular block 62. Thus, the second annular block 62 can better transmit the action of each second guide shaft 42a to the second elastic reset member 72, or better transmit the elastic force of the second elastic reset member 72 to each second guide shaft 42a.In addition, in this embodiment, the outer end of each second blade 42 has a radially extending second shaft 42b (fixed to the inner end of the second swing shaft in this embodiment), and the rear surface of the support plate 40 is provided with a second shaft seat 44 corresponding to each second shaft 42b, and each second shaft 42b is rotatably connected to the corresponding second shaft seat 44. Therefore, each second blade 42 can swing more smoothly relative to the corresponding second swing shaft.

[0064] Furthermore, in this embodiment, the stove 1 is provided with a heat dissipation channel 11 for dissipating heat from heat-generating electrical components (such as a power board, a display board, etc.) in the stove 1, and the air inlet 21 of the inner pot 20 is fluidically connected to the air outlet of the heat dissipation channel 11. In this way, the outside air introduced into the inner pot 20 through the air inlet 21 has a certain temperature, which can reduce the influence on the uniformity of the temperature field inside the inner pot 20 compared with the method of directly introducing cold air. Specifically, the stove 1 is provided with an exhaust box 12, and the air outlet of the heat dissipation channel 11 is introduced into the exhaust box 12 and then introduced into the air inlet 21 through the air inlet duct 22.

[0065] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected to each other, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A cooking device with a grilling function and a forced exhaust function, comprising an inner pot (20), a hot air chamber (30) is provided on the side wall of the inner pot (20) and a hot air blower (8) is installed, the fan blades (4) of the hot air blower (8) are located in the hot air chamber (30), and the hot air chamber (30) has an air inlet (21) and an air inlet (31) and an air return port (32) respectively connected to the outside, the air inlet (31) and the air return port (32) are respectively located in the inner cavity of the inner pot (20), wherein: The air inlet (31) is arranged on one side of the fan blade (4) and is directly opposite to the fan blade (4), and the air return port (32) is arranged around the outer periphery of the air inlet (31), and the air inlet (21) is arranged on the other side of the fan blade (4) and is opposite to the fan blade (4), characterized in that: The fan blade (4) of the hot air blower (8) comprises a support plate (40), a first blade (41) and a second blade (42), wherein the first blade (41) is movably arranged on the front side of the support plate (40) at intervals along the circumferential direction with the rotation axis (81) of the fan blade (4) as the center, and similarly, the second blade (42) is movably arranged on the back side of the support plate (40) at intervals along the circumferential direction with the rotation axis (81) of the fan blade (4) as the center, and the height of each first blade (41) and each second blade (42) relative to the surface of the support plate (40) on which it is located is adjustable. It also includes a first elastic reset member (71) and a second elastic reset member (72). In an initial state, the height of each first blade (41) and each second blade (42) is the smallest, and each elastic reset member is in a state of no force. Under the effect of wind resistance generated by the clockwise rotation of the fan blade (4), each first blade (41) is maintained at an initial height, the first elastic reset member (71) is maintained in an unstressed state, and the height of each second blade (42) is synchronously adjusted to a maximum, and the second elastic reset member (72) is deformed so that each second blade (42) has a tendency to return to an initial state. Under the effect of wind resistance generated by the counterclockwise rotation of the fan blades (4), the height of each first blade (41) is synchronously adjusted to the maximum, and the first elastic reset member (71) is deformed so that each first blade (41) has a tendency to return to an initial state, while the height of each second blade (42) remains in the initial state, and the second elastic reset member (72) remains in a non-stressed state.

2. The cooking device with grilling function and strong exhaust function as claimed in claim 1, characterized in that: Each of the first blades (41) is arranged along the radial direction of the fan blade (4), and each of the first blades (41) comprises a first sheet body (411) and a second sheet body (412) located at one side of the first sheet body (411) in the circumferential direction. The first sheet body (411) and the second sheet body (412) extend along the length direction of the first blade (41) where they are located. Each of the first sheet bodies (411) and each of the second sheet bodies (412) are straight plates, and the width of each of the first sheet bodies (411) is smaller than that of each of the second sheet bodies (412). When the height of each first blade (41) is at its minimum, the first blade (411) in each first blade (41) is perpendicular to the front surface of the support plate (40), and the second blade (412) is in contact with the front surface of the support plate (40). When each first blade (41) is at its maximum height, the first blade (411) in each first blade (41) fits the front surface of the support plate (40), while the second blade (412) is perpendicular to the front surface of the support plate (40).

3. The cooking device with grilling function and strong exhaust function as claimed in claim 2, characterized in that: The first body (411) and the second body (412) of each of the first blades (41) are arranged perpendicularly.

4. The cooking device with grilling function and strong exhaust function as claimed in claim 3, characterized in that: A side edge of the first sheet body (411) of each of the first blades (41) and a corresponding side edge of the second sheet body (412) extend radially of the fan blade (4), and the two are fixed to each other along the length direction to form a first swing axis, and each of the first blades (41) is swingably arranged on the front side of the support plate (40) via the corresponding first swing axis.

5. The cooking device with grilling function and strong exhaust function as claimed in claim 4, characterized in that: Each of the first blades (41) is an integral piece.

6. The cooking device with grilling function and strong exhaust function according to any one of claims 2 to 5, characterized in that: Each of the second blades (42) is a straight plate, and a side edge of each of the second blades (42) extends radially along the fan blade (4) to form a second swing axis, and each of the second blades (42) is swingably arranged on the back side of the support plate (40) via a corresponding second swing axis.

7. The cooking device with grilling function and strong exhaust function as claimed in any one of claims 2 to 5, characterized in that: A first guide shaft (41a) is fixed to one end of each of the first blades (41), and the fan blade (4) is further provided with a first guide groove (511) corresponding to each of the first guide shafts (41a), each of the first guide grooves (511) is in an arc shape, and each of the first guide shafts (41a) is inserted into the corresponding first guide groove (511) and can move back and forth along the corresponding first guide groove (511). When the height of each first blade (41) is at its maximum, each first guide shaft (41a) abuts against one end of the corresponding first guide groove (511), and when the height of each first blade (41) is at its minimum, each first guide shaft (41a) abuts against the other end of the corresponding first guide groove (511).

8. The cooking device with grilling function and strong exhaust function as claimed in claim 7, characterized in that: The first elastic return member (71) is a coil spring arranged at the center of the front side of the support plate (40), and each first guide shaft (41a) is respectively fixed to the inner end of each first blade (41). The inner mounting end of the first elastic return member (71) is fixed to the front side of the support plate (40), and the outer output end is respectively linked to each first guide shaft (41a) through the first transmission mechanism (5).

9. The cooking device with grilling function and strong exhaust function as claimed in claim 8, characterized in that: A circular first annular groove (51) centered on the rotation axis (81) of the fan blade (4) is axially protruded at the center of the front side of the support plate (40), and the first elastic reset member (71) is accommodated inside the first annular groove (51). The first transmission mechanism (5) comprises the first annular groove (51) and a first annular block (52) circumferentially embedded in the first annular groove (51) and capable of sliding along the first annular groove (51), and each first guide groove (511) is circumferentially spaced apart on the outer annular wall of the first annular groove (51), and the inner annular wall of the first annular groove (51) is provided with a first sliding groove (512) for the output end of the first elastic reset member (71) to be inserted and move back and forth, The outer side of the first annular block (52) is provided with first outer guide grooves (521) corresponding to the first guide grooves (511) and for the end of the corresponding first guide shaft (41a) to be inserted and move back and forth, while the inner side of the first annular block (52) is provided with first inner guide grooves (522) corresponding to the first sliding grooves (512) and for the output end of the first elastic reset member (71) to be inserted and move back and forth.

10. The cooking device with grilling function and strong exhaust function as claimed in claim 9, characterized in that: Each of the first guide grooves (511) is respectively formed on the outer ring wall of the first ring groove (51) in the upper and lower parts, and each of the first outer guide grooves (521) is respectively formed by being radially concave and axially extending from the outer peripheral surface of the first ring block (52). The first sliding groove (512) extends along the circumferential direction of the inner ring wall of the first ring groove (51), and the first inner guide groove (522) is formed by the radial inward concave of the inner circumferential surface of the first annular block (52).

11. The cooking device with grilling function and strong exhaust function as claimed in claim 6, characterized in that: A second guide shaft (42a) is fixed to one end of each of the second blades (42), and the fan blade (4) is further provided with a second guide groove (611) corresponding to each of the second guide shafts (42a), each of the second guide grooves (611) is in an arc shape, and each of the second guide shafts (42a) is inserted into the corresponding second guide groove (611) and can move back and forth along the corresponding second guide groove (611). When the height of each second blade (42) is at its maximum, each second guide shaft (42a) abuts against one end of the corresponding second guide groove (611), and when the height of each second blade (42) is at its minimum, each second guide shaft (42a) abuts against the other end of the corresponding second guide groove (611).

12. The cooking device with grilling function and strong exhaust function as claimed in claim 11, characterized in that: The second elastic return member (72) is a coil spring arranged at the center of the back side of the support plate (40), and each second guide shaft (42a) is respectively fixed to the inner end of each second blade (42). The inner mounting end of the second elastic return member (72) is fixed to the back side of the support plate (40), and the outer output end is respectively linked to each second guide shaft (42a) through the second transmission mechanism (6).

13. The cooking device with grilling function and strong exhaust function as claimed in claim 12, characterized in that: A circular second annular groove (61) centered on the rotation axis (81) of the fan blade (4) is axially protruded at the center of the back side of the support plate (40), and the second elastic reset member (72) is accommodated inside the second annular groove (61). The second transmission mechanism (6) comprises the second annular groove (61) and a second annular block (62) circumferentially embedded in the second annular groove (61) and capable of sliding along the second annular groove (61), and each second guide groove (611) is circumferentially spaced apart on the outer annular wall of the second annular groove (61), and the inner annular wall of the second annular groove (61) is provided with a second sliding groove (612) for the output end of the second elastic reset member (72) to be inserted and move back and forth, The outer side of the second annular block (62) is provided with second outer guide grooves (621) corresponding to the second guide grooves (611) and for the end of the corresponding second guide shaft (42a) to be inserted and move back and forth, while the inner side of the second annular block (62) is provided with second inner guide grooves (622) corresponding to the second sliding grooves (612) and for the output end of the second elastic reset member (72) to be inserted and move back and forth.

14. The cooking device with grilling function and strong exhaust function as claimed in claim 13, characterized in that: Each of the second guide grooves (611) is respectively opened on the outer ring wall of the second ring groove (61) in the upper and lower parts, and each of the second outer guide grooves (621) is respectively formed by being radially concave and axially extending from the outer peripheral surface of the second ring block (62). The second sliding groove (612) extends along the circumferential direction of the inner ring wall of the second ring groove (61), and the second inner guide groove (622) is formed by the radial inward concave of the inner circumferential surface of the second annular block (62).

15. An all-in-one cooking machine, comprising a cooking device (2), characterized in that: The cooking device (2) is a grilling cooking device with a strong exhaust function as described in any one of claims 1 to 14.

16. The all-in-one cooking machine according to claim 15, characterized in that: It also includes a stove (1) arranged on the cooking device (2), wherein the stove (1) is provided with a heat dissipation channel (11) for dissipating heat from heating electrical components in the stove (1), and the air inlet (21) of the inner pot (20) is fluidically connected to the air outlet of the heat dissipation channel (11).

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