Cooking device

Abstract

The utility model relates to a cooking device which comprises an inner container and a door body, a heat dissipation channel is arranged on the inner container, a heat dissipation inlet of the heat dissipation channel is in fluid communication with an air outlet port of the door body, a heat dissipation outlet of the heat dissipation channel is communicated with the outside, and a first connecting port communicated to the air outlet port is formed in the rear side wall of the upper end of the door body. The door further comprises an air guide pipe extending front and back, the air guide pipe is arranged in the first connector in a penetrating mode and can move front and back relative to the first connector, the air guide pipe is hidden in the ventilation interlayer of the door body in the door opening state, the air guide pipe moves backwards to enable the rear end of the air guide pipe to be located outside the door body when the door is closed, and the air guide pipe moves backwards to enable the rear end of the air guide pipe to be located outside the door body when the door is closed. The front pipe opening of the air guide pipe is located in the air outlet port, and the rear port is communicated with the heat dissipation inlet. According to the utility model, heat can be prevented from escaping in the gap between the door body and the control panel, the heat dissipation effect on the door body is ensured, the air guide pipe can be controlled by opening and closing the door, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a cooking device. Background Art

[0002] When the oven is in the working state, the high temperature (the temperature can reach up to 250 °C) in the inner cavity will radiate to the door body, resulting in the temperature rise of the door body and posing a risk of scalding users. To solve this problem, generally, the door body is designed as a three-layer door glass structure. For example, the Chinese invention patent with the application number CN202310008469.9 (publication number CN116172418A) discloses a door body assembly including: a door panel bracket, an inner door glass, a middle door glass, an outer door glass, a camera, a heating wire, and a heat dissipation fan; the inner door glass, the middle door glass, and the outer door glass are respectively fixedly connected to the door panel bracket; the inner door glass, the middle door glass, and the door panel bracket form a first cavity; the middle door glass, the outer door glass, and the door panel bracket form a second cavity.

[0003] Although the heat transferred to the outer surface of the door body can be reduced by the multi-layer door glass and the cavity arrangement between adjacent door glasses, there is still some heat transferred to the outer door glass, affecting the user experience. For this reason, in the prior art, a heat dissipation channel is arranged above the inner cavity, and the heat dissipation fan in the heat dissipation channel is used to drive the heat in the door body to flow into the heat dissipation channel from bottom to top, so as to realize the heat dissipation of the door body. However, above the door body is the control panel of the cooking device, and there is a gap between the control panel and the upper end of the door body. In this way, during the heat dissipation process of the door body, the heat will escape through this gap, on the one hand, it will affect the heat dissipation effect of the door body, and on the other hand, the heat escaping from the gap will affect the user experience. Summary of the Invention

[0004] The first technical problem to be solved by the utility model is to provide a cooking device with good heat dissipation effect for the door body in view of the prior art.

[0005] The second technical problem to be solved by the utility model is to provide a cooking device with good heat dissipation effect for the door body and convenient operation in view of the prior art.

[0006] The technical solution adopted by the present utility model to solve at least one of the above technical problems is as follows: A cooking device includes an inner container with an opening at the front side and a door body for covering the opening of the inner container. The door body has a ventilation sandwich inside, and the air inlet port of the ventilation sandwich is located at the lower end of the door body while the air outlet port is located at the upper end of the door body. A heat dissipation channel with a heat dissipation fan is provided above the inner container. The heat dissipation inlet of the heat dissipation channel is in fluid communication with the air outlet port, and the heat dissipation outlet communicates with the outside. It is characterized in that a first connection port penetrating through to the air outlet port is opened on the rear side wall at the upper end of the door body, and it further includes a guide air pipe extending forward and backward. The guide air pipe is inserted into the first connection port and can move forward and backward relative to the first connection port.

[0007] Moreover, in the open door state, the guide air pipe is hidden in the ventilation sandwich of the door body, and when the door is closed, the guide air pipe moves backward so that the rear end of the guide air pipe is outside the door body. And in the closed door state, the front pipe orifice of the guide air pipe is located in the air outlet port and the rear port is connected to the heat dissipation inlet.

[0008] Furthermore, it further includes a face lining plate vertically surrounding the opening of the inner container. The upper end of the face lining plate shields the heat dissipation inlet and is provided with second connection ports at intervals in the left-right direction. Correspondingly, at least two first connection ports corresponding to the second connection ports one by one are opened on the rear side wall at the upper end of the door body.

[0009] The guide air pipes are at least two and correspond to the first connection ports one by one. Each guide air pipe is respectively inserted into the corresponding first connection port. When the door is closed, each guide air pipe moves backward synchronously, and in the closed door state, the rear pipe orifices of each guide air pipe are respectively connected to the corresponding second connection ports. Thus, the ventilation outlet of the ventilation sandwich and the heat dissipation inlet of the heat dissipation channel can be connected through the guide air pipes, better avoiding the heat escape in the door body during the heat dissipation process.

[0010] Furthermore, it further includes a guide air plate vertically arranged and extending left and right. The guide air plate is movably arranged in the air outlet port in the front-back direction, and each guide air pipe protrudes from the rear surface of the guide air plate and is an integral part with the guide air plate. Thus, the synchronous movement of each guide air pipe can be better realized, and the internal structure of the cooking device can be made simple.

[0011] Furthermore, it further includes a driving mechanism for driving the guide air plate to move forward and backward. The driving mechanism includes a driving member, a transmission assembly, and an elastic member. Among them, the driving member is fixed on the front surface of the face lining plate, the transmission assembly is arranged in the ventilation sandwich and includes a first transmission member slidably arranged up and down and a second transmission member fixed on the guide air plate, and the two are detachably connected.

[0012] In the closed state, the first transmission member is at the highest position of its up and down stroke, and the elastic member is in the initial state. When closing the door, the driving member extends into the ventilation sandwich through the notch at the upper end of the door body and presses down the first transmission member. The first transmission member moves downward and drives the second transmission member to move backward, so that the air guide plate drives each air duct to move backward, and the elastic member is compressed and makes the first transmission member have a tendency to move upward and return to the closed state.

[0013] Furthermore, there are two driving mechanisms which are respectively arranged at the left and right ends. Each driving member is a rod extending horizontally back and forth. Each transmission assembly further includes a mounting seat corresponding to each first transmission member and used for mounting the corresponding first transmission member. And each first transmission member is a block arranged vertically in the front and back direction. A vertically extending mounting post protrudes from the lower end of the block, and the mounting posts are respectively inserted into the mounting holes of the corresponding mounting seats. Each elastic member is a spring sleeved on the corresponding mounting post, and each spring is vertically limited between the corresponding first transmission member and the mounting seat.

[0014] Each second transmission member is a plate fixed to the left and right ends of the air guide plate. Each plate is arranged vertically and extends back and forth. And the lower side edges of each plate extend upward from front to back. Slots are respectively formed in each first transmission member and open backward for the corresponding second transmission member to be inserted. The sizes of the slots respectively match the corresponding second transmission members. And the lower slot surfaces of the slots extend upward from front to back.

[0015] Moreover, in the open state, each second transmission member is completely accommodated in the slot of the corresponding first transmission member and the lower side edges of each first transmission member respectively abut against the lower slot surfaces of the corresponding slots up and down. In this way, the corresponding second transmission member can be limited by each first transmission member, so that the air guide plate is stably in the open state. When closing the door, each driving member pushes the corresponding first transmission member downward, and the lower slot surfaces of the slots respectively interact with the lower side edges of the corresponding second transmission members to make each second transmission member move backward, and further make the air guide plate move backward and make each air duct exposed outside the door body.

[0016] Furthermore, vertically extending first guide rods respectively protrude from the bottoms of each first transmission member, and first guide holes for the corresponding first guide rods to pass through and move vertically back and forth are respectively formed in each mounting seat. Thus, each first transmission member can move up and down more smoothly.

[0017] Further, it further includes a limiting component for limiting the front and rear positions of the above-mentioned air guide plate. The limiting component includes a front limiting plate located in front of the air guide plate, a rear limiting plate located behind the air guide plate, and a connecting rod. Among them, the front limiting plate is provided with front ventilation holes corresponding to each air duct one by one, and the rear limiting plate is provided with rear ventilation holes corresponding to each air duct one by one. Each air duct is respectively arranged in the corresponding rear ventilation hole. The front end of the above-mentioned connecting rod is connected to the front limiting plate and the rear end is connected to the rear limiting plate, and is arranged in the through hole of the above-mentioned air guide plate. Moreover, a return spring is sleeved on the connecting rod, and the return spring is clamped between the front limiting plate and the air guide plate.

[0018] In the open door state, the rear pipe orifices of each air duct are located in the corresponding rear ventilation holes. The above-mentioned return spring is compressed and makes the above-mentioned air guide plate have a tendency to move backward. When closing the door, the air guide plate moves backward to release the elastic force of the return spring until the air guide plate abuts against the rear limiting plate front and back. On the one hand, with the cooperation of each first transmission member, the air guide plate can be more stably maintained in the open door state. On the other hand, when closing the door, the air guide plate can move backward more smoothly, so as to facilitate the connection between the air outlet port and the heat dissipation inlet through each air duct.

[0019] Further, a second guide rod extending forward and backward along the horizontal direction is convexly provided on the front surface of the air guide plate, and a second guide hole is provided on the above-mentioned front limiting plate. The second guide rod is arranged in the second guide hole and can move back and forth along the second guide hole. Thus, the air guide plate can move back and forth more smoothly between the front limiting plate and the rear limiting plate.

[0020] Further, the mounting seats of each of the transmission components are respectively fixed at the left and right ends of the above-mentioned front limiting plate. In this way, the two first transmission members can be respectively arranged at the left and right ends of the front limiting plate, so that the internal structure of the cooking device can be made more compact.

[0021] Further, the opening areas of the front ventilation holes on the front limiting plate are respectively larger than the cross-sectional areas of the corresponding air ducts.

[0022] Compared with the prior art, the advantages of the present utility model are as follows: The air duct is arranged in the first connection port and can move back and forth relative to the first connection port. In the open door state, the above-mentioned air duct is hidden in the ventilation sandwich layer of the door body. When closing the door, the air duct moves backward so that the rear end of the air duct is located outside the door body. And in the closed door state, the front pipe orifice of the air duct is located in the above-mentioned air outlet port and the rear pipe orifice is connected to the above-mentioned heat dissipation inlet. In this way, driven by the heat dissipation fan, the heat in the ventilation sandwich layer enters the heat dissipation channel through the air outlet port and the air duct, avoiding the escape of heat at the gap between the door body and the control panel, ensuring the heat dissipation effect on the door body, and moreover, the control of the air duct can be realized by opening and closing the door, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the cooking device in the door - open state in the embodiment of the present utility model;

[0024] Figure 2 It is Figure 1 a schematic structural diagram in another direction;

[0025] Figure 3 It is a cross - sectional view of the door body in the door - open state in the embodiment of the present utility model;

[0026] Figure 4 It is Figure 3 an enlarged view of part A in

[0027] Figure 5 It is a cross - sectional view of the door body in another direction in the door - open state in the embodiment of the present utility model;

[0028] Figure 6 It is Figure 5 an enlarged view of part B in

[0029] Figure 7 It is a cross - sectional view of the cooking device in the door - closed state in the embodiment of the present utility model;

[0030] Figure 8 It is Figure 7 an enlarged view of part C in

[0031] Figure 9 It is a cross - sectional view of the cooking device in another direction in the door - closed state in the embodiment of the present utility model;

[0032] Figure 10 It is Figure 9 an enlarged view of part D in

[0033] Figure 11 It is a schematic partial structural diagram of the cooking device in the door - closed state in the embodiment of the present utility model;

[0034] Figure 12 It is a schematic structural diagram of the door body in the door - open state in the embodiment of the present utility model;

[0035] Figure 13 It is a schematic partial structural diagram of the cooking device in the door - open state in the embodiment of the present utility model;

[0036] Figure 14 It is a partial structural exploded view of the cooking device in the embodiment of the present utility model;

[0037] Figure 15 It is Figure 14 a schematic structural diagram in another direction. Detailed implementation manners

[0038] The following further describes the present utility model in detail in conjunction with the embodiments and the accompanying drawings.

[0039] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 disclosed embodiments of the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the 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.

[0040] As Figures 1 to 15 shown, a cooking device includes an inner container 1 with an opening at the front side and a door body 2 for covering the opening of the inner container 1. Among them, the door body 2 has a ventilation sandwich layer 20 inside, and the air inlet port 201 of the ventilation sandwich layer 20 is located at the lower end of the door body 2 while the air outlet port 202 is located at the upper end of the door body 2. A heat dissipation channel 3 with a heat dissipation fan 33 is provided above the inner container 1. The heat dissipation inlet 31 of the heat dissipation channel 3 is in fluid communication with the air outlet port 202, and the heat dissipation outlet 32 communicates with the outside. A first connection port 23 penetrating through to the air outlet port 202 is opened on the rear side wall at the upper end of the door body 2.

[0041] Furthermore, it further includes a gas guide pipe 51 extending in the front-rear direction. The gas guide pipe 51 is inserted into the first connection port 23 and can move back and forth relative to the first connection port 23. And in the open door state, the gas guide pipe 51 is hidden in the ventilation sandwich layer 20 of the door body 2, while when the door is closed, the gas guide pipe 51 moves backward so that the rear end of the gas guide pipe 51 is outside the door body 2. And in the closed door state, the front pipe orifice of the gas guide pipe 51 is located in the air outlet port 202 and the rear port is connected to the heat dissipation inlet 31.

[0042] As can be seen from the above, in the present utility model, the air guide pipe 51 is inserted into the first connection port 23 and can move back and forth relative to the first connection port 23. In the open door state, the air guide pipe 51 is hidden in the ventilation sandwich layer 20 of the door body 2. When the door is closed, the air guide pipe 51 moves backward so that the rear end of the air guide pipe 51 is located outside the door body 2. And in the closed door state, the front pipe orifice of the air guide pipe 51 is located in the air outlet port 202 and the rear port is communicated with the heat dissipation inlet 31. Thus, driven by the heat dissipation fan 33, the heat in the ventilation sandwich layer 20 enters the heat dissipation channel 3 through the air guide pipe 51 from the air outlet port 202, avoiding the escape of heat at the gap between the door body 2 and the control panel, ensuring the heat dissipation effect of the door body 2, and moreover, the control of the air guide pipe 51 can be realized by opening and closing the door, which is convenient to operate.

[0043] In this embodiment, specifically, the ventilation sandwich layer 20 is formed between the first door panel 21 and the second door panel 22 of the door body 2, and the first connection port 23 is opened at the upper end of the second door panel 22.

[0044] Preferably, it further includes a face lining plate 4 vertically surrounding the opening of the inner container 1. The upper end of the face lining plate 4 shields the heat dissipation inlet 31 and is provided with second connection ports 41 at intervals in the left-right direction. Correspondingly, at least two first connection ports 23 corresponding to the second connection ports 41 one by one are opened on the rear side wall at the upper end of the door body 2. The air guide pipes 51 are at least two and correspond to the first connection ports 23 one by one. Each air guide pipe 51 is respectively inserted into the corresponding first connection port 23. When the door is closed, each air guide pipe 51 moves backward synchronously. And in the closed door state, the rear pipe orifices of each air guide pipe 51 are respectively communicated with the corresponding second connection ports 41. Thus, the ventilation outlet of the ventilation sandwich layer 20 and the heat dissipation inlet 31 of the heat dissipation channel 3 can be connected through the air guide pipes 51, better avoiding the escape of heat in the door body 2 during the heat dissipation process.

[0045] Further preferably, it further includes an air guide plate 5 vertically arranged and extending left and right. The air guide plate 5 is movably arranged back and forth in the air outlet port 202, and each air guide pipe 51 protrudes from the rear surface of the air guide plate 5 and is an integral part with the air guide plate 5, so that the synchronous movement of each air guide pipe 51 can be better realized and the internal structure of the cooking device can be made simple.

[0046] The cooking device in this embodiment further includes a driving mechanism 6 for driving the above-mentioned air guide plate 5 to move back and forth. The driving mechanism 6 includes a driving member 61, a transmission assembly 62, and an elastic member 63. Among them, the driving member 61 is fixed on the front surface of the above-mentioned surface lining plate 4, the transmission assembly 62 is arranged in the above-mentioned ventilation sandwich layer 20 and includes a first transmission member 621 slidably arranged up and down and a second transmission member 622 fixed on the above-mentioned air guide plate 5, and the two are detachably connected. In the closed door state, the above-mentioned first transmission member 621 is located at the highest position of its up and down stroke, and the elastic member 63 is in an initial state. When closing the door, the above-mentioned driving member 61 extends into the ventilation sandwich layer 20 through the notch 24 at the upper end of the door body 2 and presses down the above-mentioned first transmission member 621. The first transmission member 621 moves downward and drives the above-mentioned second transmission member 622 to move backward, so that the air guide plate 5 drives each air guide pipe 51 to move backward, and the above-mentioned elastic member 63 is compressed and makes the above-mentioned first transmission member 621 have a tendency to move upward and return to the closed door state.

[0047] Specifically, there are two of the above-mentioned driving mechanisms 6, which are respectively arranged at the left and right ends. Each driving member 61 is a rod extending back and forth in the horizontal direction. Each transmission assembly 62 further includes a mounting seat 623 corresponding to each first transmission member 621 and used for mounting the corresponding first transmission member 621. Each first transmission member 621 is a block arranged vertically in the front-rear direction. A vertically extending mounting post 6211 protrudes from the lower end of the block, and the mounting post 6211 is respectively inserted into the mounting hole 6232 of the corresponding mounting seat 623. Each elastic member 63 is a spring sleeved on the corresponding mounting post 6211, and each spring is vertically limited between the corresponding first transmission member 621 and the mounting seat 623. Each second transmission member 622 is a plate body fixed to the left and right ends of the above-mentioned air guide plate 5. Each plate body is arranged vertically and extends back and forth, and the lower side edges of each plate body extend upward from front to back. And a slot 6212 is respectively formed on each first transmission member 621 and opens backward for the corresponding second transmission member 622 to be inserted. The sizes of the slots 6212 respectively match the corresponding second transmission members 622, and the lower slot surfaces of the slots 6212 extend upward from front to back. And in the open door state, each second transmission member 622 is completely accommodated in the slot 6212 of the corresponding first transmission member 621, and the lower side edges of each first transmission member 621 respectively abut against the lower slot surfaces of the corresponding slots 6212 up and down. In this way, the corresponding second transmission member 622 can be limited by each first transmission member 621, so that the air guide plate 5 is stabilized in the open door state. When closing the door, each driving member 61 pushes the corresponding first transmission member 621 downward, and the lower slot surfaces of the slots 6212 respectively interact with the lower side edges of the corresponding second transmission members 622 to make each second transmission member 622 move backward, and further make the air guide plate 5 move backward so that each air guide pipe 51 is exposed outside the door body 2.

[0048] Preferably, the bottom of each of the above-mentioned first transmission members 621 is respectively convexly provided with a first guide rod 6213 extending vertically, and each mounting seat 623 is respectively provided with a first guide hole 6231 for the corresponding first guide rod 6213 to pass through and move vertically back and forth, so that each first transmission member 621 can move up and down more smoothly.

[0049] Furthermore, it further includes a limiting component for limiting the front and rear positions of the above-mentioned air guide plate 5. The limiting component includes a front limiting plate 7 located in front of the air guide plate 5, a rear limiting plate 8 located behind the air guide plate 5, and a connecting rod 9. Among them, the front limiting plate 7 is provided with front ventilation holes 71 corresponding to each air guide pipe 51 one by one, and the rear limiting plate 8 is provided with rear ventilation holes 81 corresponding to each air guide pipe 51 one by one, and each air guide pipe 51 is respectively passed through the corresponding rear ventilation hole 81. The front end of the above-mentioned connecting rod 9 is connected to the front limiting plate 7 and the rear end is connected to the rear limiting plate 8, and is passed through the through hole 53 of the above-mentioned air guide plate 5. And, a return spring 91 is sleeved on the connecting rod 9, and the return spring 91 is clamped between the front limiting plate 7 and the air guide plate 5. In the open door state, the rear pipe orifices of each air guide pipe 51 are located in the corresponding rear ventilation holes 81, the above-mentioned return spring 91 is compressed and makes the above-mentioned air guide plate 5 have a tendency to move backward. When closing the door, the air guide plate 5 moves backward to release the elastic force of the return spring 91 until the air guide plate 5 abuts against the rear limiting plate 8 front and rear. On the one hand, with the cooperation of each first transmission member 621, the air guide plate 5 can be more stably maintained in the open door state. On the other hand, when closing the door, the air guide plate 5 can move backward more smoothly, so as to facilitate the connection between the air outlet port 202 and the heat dissipation inlet 31 through each air guide pipe 51.

[0050] Preferably, in this embodiment, the opening areas of the respective front ventilation holes 71 on the front limiting plate 7 are respectively larger than the cross-sectional areas of the corresponding air guide pipes 51.

[0051] Preferably, a second guide rod 52 extending horizontally and front and rear is convexly provided on the front surface of the above-mentioned air guide plate 5, and a second guide hole 72 is provided on the above-mentioned front limiting plate 7. The second guide rod 52 is passed through the second guide hole 72 and can move back and forth along the second guide hole 72. Thus, the air guide plate 5 can move more smoothly back and forth between the front limiting plate 7 and the rear limiting plate 8. Further preferably, the mounting seats 623 of each of the above-mentioned transmission components 62 are respectively fixed to the left and right ends of the above-mentioned front limiting plate 7, so that the two first transmission members 621 can be respectively arranged at the left and right ends of the front limiting plate 7, so as to make the internal structure of the cooking device compact.

[0052] As used herein, "fluid communication" refers to the spatial relationship between two components or locations (hereinafter uniformly referred to as the first location and the second location respectively), that is, fluid (gas, liquid or a mixture of both) can flow from the first location along a flow path or / and be transported to the second location. It can be a direct connection between the above-mentioned first location and the second location, or an indirect connection between the first location and the second location through at least one third party. The third party can be a fluid passage such as a pipe, channel, conduit, flow guide, hole, groove, etc., or a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A cooking device, comprising an inner pot (1) with an opening at the front side and a door body (2) for covering the opening of the inner pot (1), wherein the door body (2) has a ventilation interlayer (20) inside, and the air inlet port (201) of the ventilation interlayer (20) is located at the lower end of the door body (2) and the air outlet port (202) is located at the upper end of the door body (2), a heat dissipation channel (3) with a heat dissipation fan (33) is arranged on the inner pot (1), the heat dissipation inlet (31) of the heat dissipation channel (3) is fluidically connected with the air outlet port (202), and the heat dissipation outlet (32) is connected to the outside, characterized in that: The door body (2) has a first connection port (23) on the rear side wall at the upper end thereof, which is connected to the air outlet port (202). The door body (2) also includes an air guide pipe (51) extending forward and backward. The air guide pipe (51) is arranged in the first connection port (23) and can move forward and backward relative to the first connection port (23). Furthermore, when the door is open, the air duct (51) is hidden in the ventilation interlayer (20) of the door body (2), and when the door is closed, the air duct (51) moves backward so that the rear end of the air duct (51) is located outside the door body (2), and when the door is closed, the front pipe opening of the air duct (51) is located in the air outlet port (202) and the rear port is connected to the heat dissipation inlet (31).

2. The cooking device according to claim 1, characterized in that: It also includes a surface lining plate (4) vertically arranged around the opening of the inner tank (1), the upper end of the surface lining plate (4) shielding the heat dissipation inlet (31), and having second connection ports (41) spaced apart in the left-right direction, and correspondingly, at least two first connection ports (23) corresponding to the second connection ports (41) are formed on the rear side wall at the upper end of the door body (2), There are at least two air guide tubes (51) corresponding to the first connection ports (23) one by one. Each air guide tube (51) is respectively inserted into the corresponding first connection port (23). When the door is closed, each air guide tube (51) moves backward synchronously. In the closed state, the rear pipe openings of each air guide tube (51) are respectively connected to the corresponding second connection port (41).

3. The cooking device according to claim 2, characterized in that: It also includes an air guide plate (5) arranged vertically and extending left and right, the air guide plate (5) being arranged in the air outlet port (202) so as to be movable forward and backward, and each air guide pipe (51) being protrudingly arranged on the rear surface of the air guide plate (5) and being an integral part with the air guide plate (5).

4. The cooking device according to claim 3, characterized in that: The invention also comprises a driving mechanism (6) for driving the air guide plate (5) to move forward and backward, the driving mechanism (6) comprising a driving member (61), a transmission assembly (62) and an elastic member (63), wherein the driving member (61) is fixed on the front surface of the surface lining plate (4), the transmission assembly (62) is arranged in the ventilation interlayer (20) and comprises a first transmission member (621) slidably arranged up and down and a second transmission member (622) fixed on the air guide plate (5), and the two are detachably connected. When the door is closed, the first transmission member (621) is located at the highest position of its vertical travel, and the elastic member (63) is in the initial state. When the door is closed, the driving member (61) extends into the ventilation interlayer (20) through the notch (24) at the upper end of the door body (2) and presses down the first transmission member (621). The first transmission member (621) moves downward and drives the second transmission member (622) to move backward, while the elastic member (63) is compressed and causes the first transmission member (621) to have a tendency to move upward and return to the closed state.

5. The cooking device according to claim 4, characterized in that: The driving mechanisms (6) are two and are respectively arranged at the left and right ends. Each driving member (61) is a rod member extending forward and backward in the horizontal direction. Each transmission assembly (62) also includes a mounting seat (623) corresponding to each first transmission member (621) and used to mount the corresponding first transmission member (621). Each first transmission member (621) is a block body vertically arranged in the front-back direction. A vertically extending mounting column (6211) is protruded at the lower end of the block body, and the mounting column (6211) is respectively inserted into the mounting hole (6232) of the corresponding mounting seat (623). Each elastic member (63) is a spring sleeved on the corresponding mounting column (6211), and each spring is limited in upper and lower positions between the corresponding first transmission member (621) and the mounting seat (623). Each second transmission member (622) is a plate body fixed to the left and right ends of the air guide plate (5), each plate body is vertically arranged and extends forward and backward, and the lower side edge of each plate body extends upward from front to back, and each first transmission member (621) is provided with a slot (6212) opening toward the rear and for the corresponding second transmission member (622) to be inserted, the size of each slot (6212) matches the corresponding second transmission member (622), and the lower groove surface of each slot (6212) extends upward from front to back. Furthermore, in the door open state, each second transmission member (622) is completely accommodated in the slot (6212) of the corresponding first transmission member (621), and the lower side edge of each first transmission member (621) is respectively abutted against the lower groove surface of the corresponding slot (6212).

6. The cooking device according to claim 5, characterized in that: A first guide rod (6213) extending vertically is protruded from the bottom of each first transmission member (621), and a first guide hole (6231) is opened on each mounting seat (623) for the corresponding first guide rod (6213) to pass through and move back and forth vertically.

7. The cooking device according to claim 5, characterized in that: The invention also comprises a limit assembly for limiting the front and rear positions of the air guide plate (5), the limit assembly comprising a front limit plate (7) located in front of the air guide plate (5), a rear limit plate (8) located behind the air guide plate (5), and a connecting rod (9), wherein the front limit plate (7) is provided with front air holes (71) corresponding to each air guide tube (51) one by one, and the rear limit plate (8) is provided with rear air holes (71) corresponding to each air guide tube (51) one by one. The connecting rod (9) has a front end connected to the front limit plate (7) and a rear end connected to the rear limit plate (8), and is inserted into the through hole (53) of the air guide plate (5). A return spring (91) is sleeved on the connecting rod (9), and the return spring (91) is sandwiched between the front limit plate (7) and the air guide plate (5). When the door is open, the rear pipe opening of each air guide pipe (51) is located in the corresponding rear vent hole (81), the return spring (91) is compressed and causes the air guide plate (5) to have a tendency to move backwards; when the door is closed, the air guide plate (5) moves backwards and causes the return spring (91) to release its elastic force until the air guide plate (5) and the rear limit plate (8) are in front and back contact with each other.

8. The cooking device according to claim 7, characterized in that: A second guide rod (52) extending forward and backward is protruded in a horizontal direction on the front surface of the air guide plate (5), and a second guide hole (72) is opened on the front limit plate (7). The second guide rod (52) is inserted into the second guide hole (72) and can move back and forth along the second guide hole (72).

9. The cooking device according to claim 7 or 8, characterized in that: The mounting seats (623) of each transmission assembly (62) are respectively fixed to the left and right ends of the front limit plate (7).

10. The cooking device according to claim 7 or 8, characterized in that: The opening area of ​​each front vent hole (71) on the front limiting plate (7) is respectively larger than the cross-sectional area of ​​the corresponding air guide pipe (51).

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