CN113331703B

CN113331703B - Steaming and baking cooking equipment

Info

Publication number: CN113331703B
Application number: CN202110687918.8A
Authority: CN
Inventors: 刘子厚; 付远华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-05-17
Anticipated expiration: 2041-06-21
Also published as: CN113331703A

Abstract

The invention relates to a steaming and baking cooking device, wherein a first exhaust port and a second exhaust port with different opening areas are respectively arranged on an inner container of the steaming and baking cooking device, the first exhaust port with the small opening area is used for a steaming mode, so that the outward discharge speed of steam in the inner container in the steaming mode can be reduced, and the second exhaust port with the large opening area is used for a baking mode, so that moisture generated in the baking process can be quickly discharged. According to the invention, the opening and closing of the first exhaust port and the second exhaust port can be realized through the reciprocating movement of the push rod in the shell of the exhaust joint, so that gas in the inner container can be exhausted through different exhaust paths in different cooking modes, the exhaust speed is adjusted, and the cooking effect is improved. In the invention, the steaming mode and the baking mode adopt mutually independent exhaust paths to discharge gas to the exhaust channel, thereby avoiding the influence of oil smoke and the like remained in the exhaust paths under the baking function on the steamed food and ensuring the cooking quality of the steamed food.

Description

Steaming and baking cooking equipment

Technical Field

The invention relates to the field of cooking equipment, in particular to steaming and baking cooking equipment.

Background

Steaming and baking cooking equipment such as an integrated steaming and baking machine is composite cooking equipment having both a steaming function and a baking function, for example: the steaming and roasting integrated machine structure is disclosed in Chinese utility model patent with the patent number ZL201820707442.3 (the publication number is CN209284910U), Chinese utility model patent with the patent number ZL201821449282.3 (the publication number is CN209031991U) and the like.

The function is evaporated and an inner bag of roast function sharing is done to current cooking equipment that evaporates, and has only seted up an gas vent on this inner bag, evaporates all exhaust gas through this gas vent under function and the roast function. However, evaporate the function and roast function and require differently to the gas vent size, wherein, evaporate the function and require the gas vent not too big, if the gas vent too big can lead to exhaust velocity too fast, not only can influence the duration of water tank like this, also can make kitchen environment humidity too big simultaneously, and roast function then needs the great gas vent of opening to moisture in the baking process inner bag can be quick outer arranging, especially when baking the higher food of humidity requirement such as cake. In addition, the existing steaming and baking cooking equipment shares the exhaust pipe with the steaming function and the baking function, so that the oil smoke and the like remained on the exhaust pipe by the baking function can influence the smell, the taste and the like of the steamed food.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a steaming and baking cooking device, which can adjust the exhaust speed according to different cooking modes.

The second technical problem to be solved by the invention is to provide a steaming and baking cooking device which can avoid the influence of baking oil smoke on steamed food in the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: a steaming and baking cooking device comprises an inner container and an exhaust channel arranged above the inner container, wherein the inner container is provided with an exhaust port, the exhaust channel is provided with an air inlet hole which is in fluid communication with the exhaust port, the steaming and baking cooking device is characterized in that the exhaust port comprises a first exhaust port and a second exhaust port with the opening area larger than that of the first exhaust port, the air inlet hole comprises a first air inlet hole and a second air inlet hole which are respectively corresponding to the first exhaust port and the second exhaust port,

the exhaust joint is provided with a shell, a first exhaust pipe and a second exhaust pipe, the shell is respectively provided with a first air inlet, a second air inlet, a first air outlet which can be in fluid communication with the first air inlet and a second air outlet which can be in fluid communication with the second air inlet, wherein the first air inlet and the second air inlet are respectively communicated with the first exhaust port and the second exhaust port, two ends of the first exhaust pipe are respectively communicated with the first air outlet and the first air inlet, two ends of the second exhaust pipe are respectively communicated with the second air outlet and the second air inlet,

the exhaust joint also comprises a push rod which is arranged in the shell and can move back and forth in the shell, the push rod is provided with a stop block, and the stop block has at least two states in the moving process of the push rod: in the first state, the stop block closes the first air inlet and the first air outlet, and the second air inlet and the second air outlet are opened; in the second state, the stopper closes the second air inlet and the second air outlet, and opens the first air inlet and the first air outlet.

Further, the shell comprises a connecting pipe, a first exhaust hood and a second exhaust hood which are respectively arranged at two sides of the connecting pipe, the shape of each exhaust hood is cylindrical, one end of each exhaust hood is sealed, the other end of each exhaust hood is respectively provided with the first air inlet and the second air inlet, the side wall of each exhaust hood is respectively provided with an air guide port communicated with the corresponding pipe orifice of the connecting pipe, the first air outlet and the second air outlet are respectively arranged at two ends of the connecting pipe, the push rod is arranged in the connecting pipe along the length direction of the connecting pipe and can move back and forth along the length direction of the connecting pipe, the stop blocks comprise a first stop block and a second stop block which are respectively fixed at two ends of the push rod, and each stop block is respectively arranged in the connecting pipe along the radial direction at intervals,

in the first state, the first stop block is arranged between the first air inlet and the first air outlet in a spaced mode, and the second stop block is arranged between the first air outlet and the second air outlet in a spaced mode; in the second state, the second stop block is arranged between the second air inlet and the second air outlet, and the first stop block is arranged between the first air outlet and the second air outlet. Thereby enable the push rod more smoothly round trip movement in the casing to can realize opening and close and second air inlet, the opening and closing of second gas outlet to first air inlet, first gas outlet more accurately, and then can realize opening and close of first gas vent and second gas vent more accurately.

The cooking rack further comprises a cooking rack with a first driving part and a linkage mechanism for linking the first driving part and the push rod, wherein in an initial state, the push rod is in one state of the first state or the second state, when the cooking rack is pushed in, the push rod moves to enter the other state, and when the cooking rack is pulled out, the push rod returns to the initial state. When the cooking rack is not placed in the inner container, the steaming and baking cooking device is always in the initial state (namely one state), when the cooking rack is placed in the inner container, the steaming and baking cooking device enters the other state by the action of the cooking rack driving push rod, and when the cooking rack is taken out of the inner container, the steaming and baking cooking device is restored to the initial state again.

Further, the first exhaust port and the second exhaust port are arranged on the side wall of the inner container at intervals in the front-rear direction, the connecting pipe extends in the front-rear direction, the first driving part is a first driving rack arranged at one end of the cooking rack in the front-rear direction, the linkage mechanism comprises a first transmission gear, a second transmission gear, a third transmission gear and a fourth transmission gear, the push rod is provided with a second driving rack extending in the front-rear direction, the fourth transmission gear is meshed with the second driving rack, the third transmission gear and the fourth transmission gear are double gears, the second transmission gear and the first transmission gear are coaxially arranged through a wheel shaft extending in the left-right direction, and the first transmission gear can be meshed with the first driving rack. When the cooking rack is put into or taken out of the cooking rack, the first driving rack on the cooking rack drives the first transmission gear, the wheel shaft rotates, the second transmission gear rotates to drive the third transmission gear and the fourth transmission gear to rotate, the rotating third transmission gear is driven to move back and forth through the second driving rack on the push rod, and therefore the opening and closing of the first exhaust port and the second exhaust port are regulated and controlled.

Further, the number of teeth of the first transmission gear is N times the number of teeth of the first driving rack, the fourth transmission gear is a sector gear, and the central angle of the sector gear is equal to 360 degrees divided by N, wherein N is a natural number greater than 1. On the one hand, the reliability that the first driving rack drives the push rod to act through the linkage mechanism can be guaranteed, and on the other hand, when the cooking rack is pulled out, the push rod can be smoothly restored to the initial state, and jamming is avoided.

Further, it is preferable that the number of teeth of the first driving rack is 5, and N is 3.

Furthermore, at least two supporting bosses for placing the cooking racks are respectively arranged on the left inner side surface and the right inner side surface of the inner container in a protruding manner at intervals up and down, at least two first transmission gears are arranged and correspond to the supporting bosses one by one,

the inner container is characterized by further comprising fifth transmission gears and transmission racks, the fifth transmission gears correspond to the first transmission gears one by one, each first transmission gear and the corresponding fifth transmission gear are coaxially arranged through the wheel shaft penetrating through the side wall of the inner container, each first transmission gear is located in the inner container respectively, each fifth transmission gear is located outside the inner container respectively, the second transmission gear is arranged on one wheel shaft, and the transmission racks are vertically arranged and can be meshed with the fifth transmission gears respectively. The cooking rack can be placed on any layer of the inner container according to cooking requirements, and is convenient for users to use.

Further, still include the direction subassembly, this direction subassembly is including fixing on the surface of inner bag and having the support frame of guide slider and vertical the direction spout of seting up on above-mentioned drive rack, and above-mentioned guide slider inlays the dress and can slide from top to bottom along this direction spout in this direction spout to enable the drive rack and slide from top to bottom more steadily.

Further, the middle part of the connecting pipe expands up and down to form an installation cavity, and the sizes of the communication ports of the installation cavity and the front end and the rear end of the connecting pipe are respectively smaller than the size of the cross section of the corresponding stop block, so that the first stop block and the second stop block on two sides can be limited, the second transmission gear, the third transmission gear and the fourth transmission gear are arranged in the installation cavity, a wheel shaft where the second transmission gear is arranged penetrates through the installation cavity along the left-right direction, the linkage mechanism is convenient to arrange, a guide groove extending along the front-back direction is formed in the push rod, the wheel shaft penetrates through the guide groove and can move back and forth, on one hand, the wheel shaft can be penetrated, the two ends of the wheel shaft can be respectively provided with corresponding gears, and on the other hand, the push rod can stably move back and forth.

Furthermore, an exhaust fan is arranged on an air inlet of the exhaust channel, the exhaust fan comprises a volute casing cover and an impeller arranged in the volute casing cover, the first air inlet hole and the second air inlet hole are both arranged on the volute casing cover, and the air outlet speed of the impeller at the second air inlet hole is higher than that of the impeller at the first air inlet hole, so that exhaust gas entering from the second air inlet hole can enter the exhaust channel more quickly and is discharged outside, the exhaust speed at the second exhaust hole is further improved, and the exhaust speed at the first exhaust hole is reduced.

Further, the air flow in the first exhaust pipe flows horizontally at the first air inlet, so that the air flow in the first exhaust pipe can smoothly enter the exhaust fan, the outward discharge speed of the air in the first exhaust pipe is reduced, the air flow in the second exhaust pipe flows vertically at the second air inlet, the air flow in the second exhaust pipe can quickly enter the exhaust fan, and the outward discharge speed of the air in the second exhaust pipe is increased.

Furthermore, the lower end of the first exhaust pipe is bent upwards in a smooth manner, extends towards the first air inlet hole along the direction parallel to the upper surface of the upper mounting plate, and is bent backwards at the upper end of the first exhaust pipe to be communicated with the first air inlet hole, so that the flowing speed of the air flow in the first exhaust pipe is further reduced, and the air flow in the first exhaust pipe horizontally flows into the first air inlet hole;

after the lower end of the second exhaust pipe is bent upwards in a smooth shape, the lower end of the second exhaust pipe extends towards the second air inlet hole above the first exhaust pipe along the direction parallel to the upper surface of the upper mounting plate, and vertically extends downwards above the second air inlet hole to be communicated with the second air inlet hole, so that the flow speed of air flow in the second exhaust pipe can be further increased, and the air flow in the second exhaust pipe can vertically flow into the second air inlet hole.

Compared with the prior art, the invention has the advantages that: the inner container is provided with the first exhaust port and the second exhaust port, the first exhaust port and the second exhaust port are different in opening area, the first exhaust port with the small opening area is used for a steaming mode, therefore, the outward discharging speed of steam in the inner container in the steaming mode can be reduced, the steam utilization rate and the steaming efficiency are improved, the second exhaust port with the large opening area is used for a baking mode, therefore, moisture generated in the baking process can be discharged quickly, the exhaust efficiency in the baking mode is improved, and the cooking effect is improved. In addition, the opening and closing of the first exhaust port (the opening and closing of the first exhaust port are realized by opening and closing the first air inlet and the first air outlet) and the opening and closing of the second exhaust port (the opening and closing of the second exhaust port are realized by opening and closing the second air inlet and the second air outlet) can be realized by the reciprocating movement of the push rod in the shell of the exhaust joint, so that the gas in the inner container can be exhausted through different exhaust paths under different cooking modes, the exhaust speed is adjusted, and the cooking effect is improved. In addition, the exhaust pipe comprises a first exhaust pipe used for exhausting in the steaming mode and a second exhaust pipe used for exhausting in the baking mode, and the steaming mode and the baking mode adopt mutually independent exhaust paths to exhaust gas to the exhaust channel, so that the influence of oil smoke and the like remained in the exhaust paths under the baking function on the steamed food can be avoided, and the cooking quality of the steamed food is ensured.

Drawings

FIG. 1 is a schematic structural diagram of a steaming and baking cooking apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

FIG. 3 is a schematic view of a partial structure of a steaming and baking cooking apparatus according to an embodiment of the present invention (with an exhaust joint omitted);

FIG. 4 is a schematic view of another partial structure of the steaming and baking cooking apparatus according to the embodiment of the present invention (with the exhaust pipes omitted);

FIG. 5 is a schematic structural view of an exhaust fitting according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic structural view of a housing of an exhaust fitting according to an embodiment of the present invention;

fig. 8 is an enlarged view of a portion a in fig. 3.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 8, a steaming and baking cooking device (e.g., a steaming and baking all-in-one machine) includes an inner container 1 and an exhaust passage 30 disposed above the inner container 1, specifically, an upper mounting plate 2 is disposed above the inner container 1, an air deflector 3 is disposed on the upper mounting plate 2, and the air deflector 3 and the upper surface of the upper mounting plate 2 enclose the exhaust passage 30. Further, an exhaust fan 31 is disposed at the air inlet of the exhaust passage 30, and the exhaust fan 31 includes a volute casing 311 covering the upper surface of the upper mounting plate 2 and an impeller 312 disposed in the volute casing 311.

Further, the inner container 1 has an exhaust port and the exhaust passage 30 has an intake port in fluid communication with the exhaust port, the exhaust port includes a first exhaust port 11 and a second exhaust port 12 having an opening area larger than that of the first exhaust port 11, and the intake port includes a first intake port 3111 and a second intake port 3112 corresponding to the first exhaust port 11 and the second exhaust port 12, respectively.

Further, the present invention further includes an exhaust joint 4 having a casing 40, a first exhaust pipe 81, and a second exhaust pipe 82, and in the present embodiment, the exhaust joint 4, the first exhaust pipe 81, and the second exhaust pipe 82 are all disposed on the right side of the inner bag 1. Still further, the housing 40 is respectively provided with a first air inlet 401, a second air inlet 402, a first air outlet 403 capable of being in fluid communication with the first air inlet 401, and a second air outlet 404 capable of being in fluid communication with the second air inlet 402, wherein the first air inlet 401 and the second air inlet 402 are respectively communicated with the first exhaust port 11 and the second exhaust port 12, two ends of the first exhaust pipe 81 are respectively communicated with the first air outlet 403 and the first air inlet 3111, and two ends of the second exhaust pipe 82 are respectively communicated with the second air outlet 404 and the second air inlet 3112. The exhaust joint 4 further includes a push rod 45 disposed in the housing 40 and capable of moving back and forth in the housing 40, the push rod 45 has a stopper, and the stopper has at least two states during the movement of the push rod 45: in the first state, the stopper closes the first inlet 401 and the first outlet 403, and opens the second inlet 402 and the second outlet 404; in the second state, the stopper closes the second inlet 402 and the second outlet 404, and opens the first inlet 401 and the first outlet 403.

Therefore, the inner container 1 is respectively provided with the first exhaust port 11 and the second exhaust port 12 with different opening areas, wherein the first exhaust port 11 with the small opening area is used for the steaming mode, so that the steam exhaust speed in the inner container 1 in the steaming mode can be reduced, the steam utilization rate and the steaming efficiency can be improved, and the second exhaust port 12 with the large opening area is used for the baking mode, so that moisture generated in the baking process can be quickly exhausted, the exhaust efficiency in the baking mode can be improved, and the cooking effect can be improved. In addition, in the invention, the opening and closing of the first exhaust port 11 (the opening and closing of the first exhaust port 11 is realized by opening and closing the first air inlet 401 and the first air outlet 403) and the opening and closing of the second exhaust port 12 (the opening and closing of the second exhaust port 12 is realized by opening and closing the second air inlet 402 and the second air outlet 404) can be realized by the reciprocating movement of the push rod 45 in the shell 40 of the exhaust joint 4, so that the gas in the liner 1 can be exhausted through different exhaust paths in different cooking modes, thereby adjusting the exhaust speed and improving the cooking effect. In addition, the exhaust pipe of the present invention includes a first exhaust pipe 81 for exhausting in the steaming mode and a second exhaust pipe 82 for exhausting in the baking mode, and the steaming mode and the baking mode adopt mutually independent exhaust paths to discharge gas to the exhaust passage 30, so that the influence of oil smoke and the like remaining in the exhaust paths under the baking function on the steamed food can be avoided, and the cooking quality of the steamed food can be ensured.

Specifically, in the present embodiment, the housing 40 includes a connection pipe 41 extending in the front-rear direction, and a first exhaust hood 42 and a second exhaust hood 43 respectively disposed on the front and rear sides of the connection pipe 41, each of which has a cylindrical shape, and one end of each exhaust hood is sealed and the other end is formed with the first air inlet 401 and the second air inlet 402, the side wall of each exhaust hood is respectively provided with an air guide port 405 communicated with the corresponding pipe orifice of the connecting pipe 41, the first air outlet 403 and the second air outlet 404 are respectively opened at the front and rear ends of the connection pipe 41, the push rod 45 is provided in the connection pipe 41 in the length direction of the connection pipe 41 and can move back and forth in the length direction of the connection pipe 41, the stoppers include a first stopper 46 and a second stopper 47 fixed to both ends of the push rod 45, respectively, and the stoppers are radially spaced in the coupling pipe 41, respectively. In the first state, the first stopper 46 is disposed between the first air inlet 401 and the first air outlet 403, and the second stopper 47 is disposed between the first air outlet 403 and the second air outlet 404; in the second state, the second stopper 47 is disposed between the second inlet 402 and the second outlet 404, and the first stopper 46 is disposed between the first outlet 403 and the second outlet 404. Therefore, the push rod 45 can move back and forth in the housing 40 more smoothly, and the opening and closing of the first air inlet 401 and the first air outlet 403 and the opening and closing of the second air inlet 402 and the second air outlet 404 can be more accurately achieved, and the opening and closing of the first exhaust port 11 and the second exhaust port 12 can be more accurately achieved.

Further, the cooking hob includes a cooking hob 5 having a first driving part and a linkage mechanism 6 for linking the first driving part and the push rod 45, wherein in an initial state, the push rod 45 is in one of the first state or the second state, when the cooking hob 5 is pushed in, the push rod 45 moves to enter the other state, and when the cooking hob 5 is pulled out, the push rod 45 returns to the initial state. When the cooking rack 5 is not placed in the inner container 1, the steaming and baking cooking device is always in the initial state (i.e. one state), when the cooking rack 5 is placed in the inner container 1, the steaming and baking cooking device enters the other state by the action of the cooking rack 5 driving the push rod 45, and when the cooking rack 5 is taken out of the inner container 1, the steaming and baking cooking device is restored to the initial state again. In this embodiment, the cooking rack 5 is used in an oven mode, a common steaming plate is used in the steam mode, the push rod 45 is in the second state in an initial state, when the cooking rack 5 is pushed into the inner container 1, the push rod 45 is changed from the second state to the first state, so as to meet the requirement of quick exhaust in the oven mode, when the cooking rack 5 is pulled out from the inner container 1, the push rod 45 is restored from the first state to the second state, and when the common steaming plate is put into the inner container 1, the push rod 45 is always in the second state, so as to meet the requirement of slow exhaust in the steam mode.

In this embodiment, the first exhaust port 11 and the second exhaust port 12 are spaced apart from each other in the front-rear direction on the right side wall of the inner tub 1, the connection pipe 41 extends in the front-rear direction, the first driving portion is a first driving rack 51 provided at one end of the cooking rack 5 in the front-rear direction, the linkage mechanism 6 includes a first transmission gear 61, a second transmission gear 62, a third transmission gear 63, and a fourth transmission gear 64, the push rod 45 is provided with a second driving rack 451 extending in the front-rear direction, the fourth transmission gear 64 is engaged with the second driving rack 451, the third transmission gear 63 and the fourth transmission gear 64 are dual gears, the second transmission gear 62 and the first transmission gear 61 are coaxially provided by a wheel shaft 67 extending in the left-right direction, and the first transmission gear 61 is engaged with the first driving rack 51. When the cooking rack 5 is put in or taken out of the cooking rack 5, the first driving rack 51 on the cooking rack 5 drives the first transmission gear 61, the wheel shaft 67 rotates, the second transmission gear 62 rotates to drive the third transmission gear 63 and the fourth transmission gear 64 to rotate, the rotating third transmission gear 63 is driven by the second driving rack 451 on the push rod 45 to move back and forth, and therefore opening and closing of the first exhaust port 11 and the second exhaust port 12 are regulated and controlled. Preferably, the number of teeth of the first transmission gear 61 is N times the number of teeth of the first driving rack 51, the fourth transmission gear 64 is a sector gear, and the central angle of the sector gear is equal to 360 ° divided by N, where N is a natural number greater than 1. On one hand, the reliability that the first driving rack 51 drives the push rod 45 to act through the linkage mechanism 6 can be ensured, and on the other hand, when the cooking rack 5 is pulled out, the push rod 45 can be smoothly restored to the initial state, so that the clamping stagnation is avoided. Specifically, the number of teeth of the first driving rack 51 in this embodiment is 5, and the above N is 3.

Furthermore, in the present embodiment, three supporting bosses 10 for placing the cooking rack 5 are protruded from the left and right inner side surfaces of the inner container 1 at intervals up and down, respectively, so that the cooking rack 5 of the present invention can be placed at three different heights for cooking. Accordingly, there are three first transmission gears 61 corresponding to the support bosses 10 one by one. In order to enable the cooking rack 5 to be placed on any layer of the inner container 1 according to cooking requirements and facilitate use of a user, the cooking rack further comprises fifth transmission gears 65 and transmission racks 66 which are in one-to-one correspondence with the first transmission gears 61, each first transmission gear 61 and the corresponding fifth transmission gear 65 are coaxially arranged through the wheel shaft 67 penetrating through the side wall of the inner container 1, each first transmission gear 61 is respectively positioned in the inner container 1, each fifth transmission gear 65 is respectively positioned outside the inner container 1, the second transmission gear 62 is arranged on one wheel shaft 67, and the transmission racks 66 are vertically arranged and can be respectively meshed with the fifth transmission gears 65. Preferably, the inner container comprises a guide assembly 7, the guide assembly 7 comprises a support frame 71 fixed on the outer surface of the inner container 1 and provided with a guide slider 72, and a guide sliding groove 661 vertically arranged on the transmission rack 66, the guide slider 72 is embedded in the guide sliding groove 661 and can slide up and down along the guide sliding groove 661, so that the transmission rack 66 can slide up and down more smoothly.

In this embodiment, the middle portion of the connection pipe 41 is expanded in the vertical direction to form a square installation cavity 44, and the sizes of the connecting openings of the mounting cavity 44 and the front and rear ends of the connecting pipe 41 are respectively smaller than the size of the cross section of the corresponding stop block, so as to limit the first stop 46 and the second stop 47 at two sides, the second transmission gear 62, the third transmission gear 63 and the fourth transmission gear 64 are all arranged in the mounting cavity 44, and the wheel shaft 67 where the second transmission gear 62 is located is arranged on the mounting cavity 44 in the left-right direction, thereby facilitating the arrangement of the link mechanism 6, the push rod 45 is provided with a guide groove 452 extending in the front-rear direction, the axle 67 is inserted into the guiding groove 452 and can move back and forth, on one hand, the axle 67 can be inserted, so that the two ends of the wheel shaft 67 can be respectively provided with corresponding gears, and on the other hand, the push rod 45 can be smoothly moved back and forth.

In this embodiment, the first air inlet 3111 and the second air inlet 3112 are both disposed on the volute casing cover 311, and the air outlet speed of the impeller 312 at the second air inlet 3112 is faster than that at the first air inlet 3111, so that the exhaust gas entering from the second air inlet 3112 can enter the exhaust channel 30 more quickly for being exhausted outside, further increasing the exhaust speed at the second exhaust port 12, and similarly, reducing the exhaust speed at the first exhaust port 11. Preferably, the air flow in the first exhaust pipe 81 flows horizontally at the first air inlet hole 3111, so that the air flow in the first exhaust pipe 81 can smoothly enter the exhaust fan 31, and the exhaust speed of the gas in the first exhaust pipe 81 is reduced, and the air flow in the second exhaust pipe 82 flows vertically at the second air inlet hole 3112, so that the air flow in the second exhaust pipe 82 can quickly enter the exhaust fan 31, and the exhaust speed of the gas in the second exhaust pipe 82 is increased. Specifically, the lower end of the first exhaust pipe 81 is bent upward smoothly, extends in a direction parallel to the upper surface of the upper mounting plate 2 toward the first intake port 3111, and is bent rearward at the upper end thereof to communicate with the first intake port 3111, so that the flow velocity of the air flow in the first exhaust pipe 81 is further reduced, and the air flow in the first exhaust pipe 81 flows horizontally into the first intake port 3111. After being bent upward smoothly, the lower end of the second exhaust pipe 82 extends above the first exhaust pipe 81 in a direction parallel to the upper surface of the upper mounting plate 2 toward the second intake port 3112, and extends vertically downward above the second intake port 3112 to communicate with the second intake port 3112, so that the flow rate of the air flow in the second exhaust pipe 82 can be further increased, and the air flow in the second exhaust pipe 82 flows vertically into the second intake port 3112.

The working process of the invention is as follows:

in the initial state, the second stopper 47 is spaced between the second inlet 402 and the second outlet 404, and the first stopper 46 is spaced between the first outlet 403 and the second outlet 404, at which time the first outlet 11 is opened and the second outlet 12 is closed. At this time, the user can open the steaming mode, and put the ordinary steaming tray into the inner container 1, because the inner container 1 is not provided with the first driving part, the push rod 45 is always kept in the initial state in the cooking process, the opening area of the first exhaust port 11 is small, and the exhaust speed of the steam in the inner container 1 is slow, thereby ensuring that the inner container 1 has enough steam quantity in the steaming function.

When the baking mode is turned on, the cooking rack 5 is placed in the inner container 1, the cooking rack 5 can be placed on any layer as required, the first driving rack 51 on the cooking rack 5 is meshed with the first transmission gear 61 on the corresponding layer in the inner container 1, so that each first transmission gear 61 rotates clockwise (as viewed from the inner container 1), and further each fifth transmission gear 65 outside the inner container 1 rotates clockwise, at this time, each wheel shaft 67 rotates clockwise, and the second transmission gear 62 rotates clockwise to drive the third transmission gear 63 and the fourth transmission gear 64 to move clockwise, so as to drive the push rod 45 to move forward relative to the connecting pipe 41, at this time, the first stopper 46 is arranged between the first air inlet 401 and the first air outlet 403, and the second stopper 47 is arranged between the first air outlet 403 and the second air outlet 404, the first air outlet 11 is closed, and the second air outlet 12 is opened, since the opening area of the second exhaust port 12 is large, moisture in the inner container 1 can be rapidly discharged outside. After baking is finished, the cooking rack 5 is pulled out outwards, at this time, each first transmission gear 61 rotates anticlockwise, and further drives each fifth transmission gear 65 outside the inner container 1 to rotate anticlockwise, at this time, each wheel shaft 67 rotates anticlockwise respectively, and the second transmission gear 62 rotates anticlockwise to drive the third transmission gear 63 and the fourth transmission gear 64 to move anticlockwise, so as to drive the push rod 45 to move backwards relative to the connecting pipe 41, at this time, the second stop block 47 is arranged between the second air inlet 402 and the second air outlet 404 at a distance, and the first stop block 46 is arranged between the first air outlet 403 and the second air outlet 404 at a distance, the first air outlet 11 is opened, and the second air outlet 12 is closed, at this time, the push rod 45 returns to the initial state.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow from the first portion along a flow path or/and be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims

1. A cooking device for steaming and baking, comprising an inner container (1) and an exhaust passage (30) arranged above the inner container (1), wherein the inner container (1) is provided with an exhaust port and the exhaust passage (30) is provided with an air inlet hole which is communicated with the exhaust port in fluid, characterized in that the exhaust port comprises a first exhaust port (11) and a second exhaust port (12) with the opening area larger than that of the first exhaust port (11), the air inlet hole comprises a first air inlet hole (3111) and a second air inlet hole (3112) which are respectively corresponding to the first exhaust port (11) and the second exhaust port (12),

the exhaust device also comprises an exhaust joint (4) with a shell (40), a first exhaust pipe (81) and a second exhaust pipe (82), wherein the shell (40) is respectively provided with a first air inlet (401), a second air inlet (402), a first air outlet (403) which can be in fluid communication with the first air inlet (401), and a second air outlet (404) which can be in fluid communication with the second air inlet (402), wherein the first air inlet (401) and the second air inlet (402) are respectively communicated with the first exhaust port (11) and the second exhaust port (12), two ends of the first exhaust pipe (81) are respectively communicated with the first air outlet (403) and the first air inlet (3111), two ends of the second exhaust pipe (82) are respectively communicated with the second air outlet (404) and the second air inlet (3112),

the exhaust joint (4) further comprises a push rod (45) which is arranged in the shell (40) and can move back and forth in the shell (40), the push rod (45) is provided with a stop, and the stop has at least two states in the moving process of the push rod (45): in a first state, the stopper closes the first air inlet (401) and the first air outlet (403), and opens the second air inlet (402) and the second air outlet (404); in a second state, the stopper closes the second inlet port (402) and the second outlet port (404), opens the first inlet port (401) and the first outlet port (403),

the shell (40) comprises a connecting pipe (41), a first exhaust hood (42) and a second exhaust hood (43) which are respectively arranged at two sides of the connecting pipe (41), the shape of each exhaust hood is cylindrical, one end of each exhaust hood is sealed, the other end of each exhaust hood is respectively provided with a first air inlet (401) and a second air inlet (402), the side wall of each exhaust hood is respectively provided with an air guide opening (405) communicated with the corresponding pipe orifice of the connecting pipe (41), the first air outlet (403) and the second air outlet (404) are respectively arranged at two ends of the connecting pipe (41), the push rod (45) is arranged in the connecting pipe (41) along the length direction of the connecting pipe (41) and can move back and forth along the length direction of the connecting pipe (41), the stop blocks comprise a first stop block (46) and a second stop block (47) which are respectively fixed at two ends of the push rod (45), the stop blocks are respectively arranged in the connecting pipe (41) at intervals along the radial direction,

in the first state, the first stop (46) is arranged between the first air inlet (401) and the first air outlet (403) in a spaced mode, and the second stop (47) is arranged between the first air outlet (403) and the second air outlet (404) in a spaced mode; in the second state, the second stopper (47) is disposed between the second inlet (402) and the second outlet (404), and the first stopper (46) is disposed between the first outlet (403) and the second outlet (404).

2. The steaming and baking cooking apparatus according to claim 1, further comprising a cooking rack (5) having a first driving portion and a linkage mechanism (6) for linking the first driving portion and the push rod (45), wherein in an initial state, the push rod (45) is in one of the first state and the second state, the push rod (45) moves to enter the other state when the cooking rack (5) is pushed in, and the push rod (45) returns to the initial state when the cooking rack (5) is pulled out.

3. The steaming and baking cooking device as claimed in claim 2, wherein the first exhaust port (11) and the second exhaust port (12) are provided on one side wall of the inner container (1) at an interval in a front-rear direction, the connection pipe (41) extends in a front-rear direction, the first driving part is a first driving rack (51) provided at one end of the cooking rack (5) in a front-rear direction,

the linkage mechanism (6) comprises a first transmission gear (61), a second transmission gear (62), a third transmission gear (63) and a fourth transmission gear (64), wherein a second driving rack (451) extending in the front-back direction is arranged on the push rod (45), the fourth transmission gear (64) is meshed with the second driving rack (451), the third transmission gear (63) and the fourth transmission gear (64) are duplicate gears, the second transmission gear (62) and the first transmission gear (61) are coaxially arranged through a wheel shaft (67) extending in the left-right direction, and the first transmission gear (61) can be meshed with the first driving rack (51).

4. The steaming and baking cooking apparatus according to claim 3, wherein the number of teeth of the first transmission gear (61) is N times the number of teeth of the first driving rack (51), the fourth transmission gear (64) is a sector gear, and a central angle of the sector gear is equal to 360 ° divided by N, where N is a natural number greater than 1.

5. The cooking appliance according to claim 4, wherein the number of teeth of the first driving rack (51) is 5 and the number N is 3.

6. The steaming and baking cooking device according to any one of claims 3 to 5, wherein at least two supporting bosses (10) for placing the cooking rack (5) are protruded from the left and right inner side surfaces of the inner container (1) at intervals up and down, respectively, at least two first transmission gears (61) are provided and correspond to the supporting bosses (10) one by one,

the inner container is characterized by further comprising fifth transmission gears (65) and transmission racks (66) which correspond to the first transmission gears (61) one by one, each first transmission gear (61) and the corresponding fifth transmission gear (65) are coaxially arranged through the wheel shaft (67) penetrating through the side wall of the inner container (1), each first transmission gear (61) is located in the inner container (1) respectively, each fifth transmission gear (65) is located outside the inner container (1) respectively, the second transmission gear (62) is arranged on one wheel shaft (67), and the transmission racks (66) are vertically arranged and can be meshed with the fifth transmission gears (65) respectively.

7. The steaming and baking cooking apparatus as claimed in claim 6, further comprising a guide assembly (7), wherein the guide assembly (7) comprises a support frame (71) fixed on the outer surface of the inner container (1) and having a guide slider (72), and a guide chute (661) vertically opened on the driving rack (66), the guide slider (72) being embedded in the guide chute (661) and being capable of sliding up and down along the guide chute (661).

8. The steaming and baking cooking device according to claim 6, wherein the middle of the connecting pipe (41) is expanded in the vertical direction to form a mounting cavity (44), the size of the communication ports of the front and rear ends of the mounting cavity (44) and the connecting pipe (41) is smaller than the size of the cross section of the corresponding stopper, the second transmission gear (62), the third transmission gear (63) and the fourth transmission gear (64) are all arranged in the mounting cavity (44), the wheel shaft (67) where the second transmission gear (62) is located penetrates through the mounting cavity (44) in the left and right directions, the push rod (45) is provided with a guide groove (452) extending in the front and rear directions, and the wheel shaft (67) penetrates through the guide groove (452) and can move back and forth.

9. The steaming and baking cooking apparatus according to any one of claims 1 to 5, wherein the air inlet of the exhaust passage (30) is provided with an exhaust fan (31), the exhaust fan (31) comprises a volute casing (311) and an impeller (312) disposed in the volute casing (311), the first air inlet hole (3111) and the second air inlet hole (3112) are both opened on the volute casing (311), and the air outlet speed of the impeller (312) at the second air inlet hole (3112) is faster than that at the first air inlet hole (3111).

10. The steaming and baking cooking apparatus as claimed in claim 9, wherein the air flow in the first exhaust duct (81) flows horizontally at the first air intake hole (3111), and the air flow in the second exhaust duct (82) flows vertically at the second air intake hole (3112).

11. The steaming and baking cooking apparatus as claimed in claim 10, wherein the first exhaust pipe (81) is bent upward smoothly at a lower end thereof, extends in a direction parallel to the upper surface of the upper mounting plate (2) toward the first intake hole (3111), and is bent rearward at an upper end thereof to communicate with the first intake hole (3111);

the lower end of the second exhaust pipe (82) is bent upward smoothly, and then extends upward toward the second intake port (3112) above the first exhaust pipe (81) in a direction parallel to the upper surface of the upper mounting plate (2), and extends downward vertically above the second intake port (3112) to communicate with the second intake port (3112).