Microwave heating device for vending machine and vending machine

Abstract

The utility model discloses a microwave heating device for a vending machine and the vending machine. The microwave heating device comprises a rack, a microwave heating device and a microwave heating device, the first heating bin is mounted on the rack, the first heating bin comprises a microcrystal plate, and the microcrystal plate is used for placing a meal box to be heated; the second heating bin is provided with an opening and a heating cavity communicated with the opening, and the opening faces the first heating bin; the lifting mechanism is mounted on the rack, and the lifting mechanism is connected with the second heating bin so as to drive the second heating bin to move up and down relative to the first heating bin; when the second heating bin ascends to the first position, the meal box to be heated is exposed out of the heating cavity; when the second heating bin descends to the second position, the second heating bin makes contact with the microcrystal plate so that the opening can be closed, and the to-be-heated meal box can be located in the heating cavity. According to the vending machine, the meal box can be easily moved in and out from the two different side faces of the first heating bin, an equipment moving path and a moving mechanism in the vending machine can be simplified, then equipment control is simplified, and the meal delivery efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vending machine, especially a microwave heating device for vending machine and vending machine. BACKGROUND

[0002] The existing microwave oven mostly adopts the rotary opening and closing mode of side opening door to place food into the heating cavity for heating, and the microwave oven installed in the vending machine will occupy a large space, and the rotary opening door mode has many disadvantages, or some microwave ovens in the automatic food vending machine adopt the door body up and down movement structure, the equipment movement path is complex, the movement mechanism is more, and the control is complex, which leads to low meal efficiency. SUMMARY

[0003] The utility model aims at providing a microwave heating device for vending machine and vending machine.

[0004] The utility model discloses a microwave heating device for vending machine, including: frame, first heating bin, its installation on the frame, first heating bin includes microcrystalline board, and microcrystalline board is used to place the meal box of heating, second heating bin is equipped with opening and heating cavity with opening intercommunication, and the opening is towards first heating bin, lifting mechanism, its installation on the frame, lifting mechanism is connected with second heating bin, to drive second heating bin relative first heating bin up and down movement, wherein, when second heating bin rises to first position, the meal box of heating is exposed to heating cavity outside, when second heating bin falls to second position, second heating bin is in contact with microcrystalline board, to make opening close, and the meal box of heating is located in heating cavity.

[0005] Further, the lifting mechanism includes: first screw rod assembly, including first screw rod and the first nut of adaptation with first screw rod, both ends of first screw rod are rotatably connected with the frame respectively, and the first nut is sleeved on the first screw rod, moving frame is connected with the first nut and is fixed, the shell outside of second heating bin is equipped with first fixed frame, and the moving frame is connected with the first fixed frame, wherein, when the first nut slides along the first screw rod, the moving frame drives second heating bin to move up and down.

[0006] Further, the first screw rod is equipped with four, and is respectively arranged in the four right angles close to the frame, and the moving frame is equipped with the rectangular structure that four horizontal poles surround, and the second heating bin is located in the moving frame, and the first nut is respectively arranged in the four right angles close to the moving frame.

[0007] Furthermore, the lifting mechanism further includes: a first drive assembly located near the bottom of the frame, configured to be connected to one end of one of the first lead screws to drive the first lead screw to rotate; a synchronization assembly located at the top of the frame, the synchronization assembly including a drive wheel and a conveyor belt, the drive wheel being sleeved on the other end of each first lead screw, the conveyor belt surrounding the outside of the drive wheel, and the conveyor belt engaging with the drive wheel for transmission; and a tensioning assembly located at the top of the frame, the tensioning assembly including a tensioning wheel located on the outside of the conveyor belt, and the tensioning wheel contacting the conveyor belt to enable the conveyor belt to engage with each of the drive wheels for transmission.

[0008] Furthermore, the microwave heating device further includes a flattening detection mechanism, which includes an adjustment component and a detection component. The adjustment component includes a fixed column, a flattening spring, and a sleeve. One end of the fixed column is connected and fixed to the first fixed frame. The flattening spring is sleeved on the fixed column. The other end of the fixed column is inserted into the sleeve. One end of the sleeve contacts the flattening spring, and the other end of the sleeve is connected and fixed to the bottom of the movable frame. The other end of the fixed column is provided with a boss, and the bottom of the sleeve is provided with a retaining ring that matches the boss. When the flattening spring is in an extended state, it prevents the fixed column from detaching from the sleeve. When the flattening spring is in a compressed state, the boss moves along the sleeve... The inner wall of the cylinder slides; a second fixed frame is provided on the moving frame; a detection component is used to detect when the moving frame drives the second heating chamber to move downward, and the second heating chamber contacts the microcrystalline plate to close the opening; the detection component includes a detection switch and a sensor; wherein, the detection switch is provided on the first fixed frame, and the sensor is provided on the second fixed frame; when the moving frame drives the second heating chamber to move downward, and the second heating chamber contacts the microcrystalline plate, and is blocked by the microcrystalline plate, causing the flattening spring to be in a compressed state, the detection switch on the first fixed frame rises relative to the microcrystalline plate and senses the sensor, and the first lead screw stops rotating.

[0009] Furthermore, the bottom of the second heating chamber is provided with choke teeth; the first heating chamber also includes a reference plate, on which a microcrystalline plate is disposed, and the reference plate is connected to the frame; when the moving frame drives the second heating chamber to move downward, the choke teeth contact the microcrystalline plate, and when the detection switch senses the sensing element, the first lead screw stops rotating, so that the choke teeth deform.

[0010] Furthermore, the microwave heating device further includes: a push-out mechanism mounted on the frame, the push-out mechanism being located near the bottom of the frame, the push-out mechanism being configured to move horizontally to push the heated food container exposed outside the heating chamber away from the second heating chamber.

[0011] Furthermore, the ejection mechanism includes a push plate, a second drive assembly, and a second lead screw assembly; the second lead screw assembly includes a second lead screw and a second lead screw nut adapted to the second lead screw, the second drive assembly is connected to the second lead screw to drive the second lead screw to rotate, so that the second lead screw nut moves horizontally; the second lead screw is located below the first heating chamber, and there are two second lead screws, which are parallel and horizontally arranged; the bottom of the push plate is provided with two support legs, which are respectively located on the outside of the reference plate and are respectively connected to the second lead screw nut; the push plate is located above the microcrystalline plate to horizontally push the heated food container away from the second heating chamber; the push plate is provided with a brush for cleaning the microcrystalline plate.

[0012] Furthermore, the first heating chamber also includes a first magnetron, which is located near the bottom of the frame; the second heating chamber also includes a second magnetron, which is located near the top of the frame; wherein the first magnetron and the second magnetron are both located on the same side; both the first magnetron and the second magnetron are connected to a cooling fan, which is used to exhaust the heat generated by the first magnetron and the second magnetron through the air duct.

[0013] A second aspect of this utility model provides a vending machine comprising: the microwave heating device as described above.

[0014] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this embodiment of the invention, the second heating chamber is designed to be movable up and down relative to the first heating chamber. When the second heating chamber rises, i.e., when the second heating chamber moves away from the first heating chamber, the food container to be heated can be placed on the first heating chamber, or the food container to be heated can be moved out of the first heating chamber. When the second heating chamber descends, i.e., when the second heating chamber contacts the microcrystalline plate of the first heating chamber and the opening is closed, the food container to be heated is located in the heating chamber, and microwave heating is performed on the food container to heat the food inside. In this way, it is easy to move the food container into and out of the heating chamber from two different sides of the first heating chamber, which simplifies the movement path and motion mechanism of the equipment in the vending machine, thereby simplifying the control of the equipment and improving the efficiency of food dispensing. It also satisfies the requirement that the food container to be heated can be moved from the refrigerator to the first heating chamber, i.e., moved in from the left or right side of the first heating chamber, and that the heated food container can be dispensed from the front side of the heating cabinet, i.e., moved out from the front side of the first heating chamber. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the microwave heating device according to the first embodiment of the present invention;

[0017] Figure 2This is a schematic diagram of the structure of the microwave heating device according to the second embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the microwave heating device according to the third embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the microwave heating device according to the fourth embodiment of the present invention;

[0020] Figure 5 yes Figure 4 Enlarged view of point I;

[0021] Figure 6 This is a structural schematic diagram of a vending machine with a microwave heating device according to the fifth embodiment of the present invention;

[0022] Figure 7 This is a structural schematic diagram of a vending machine with a microwave heating device according to the sixth embodiment of the present invention;

[0023] Figure 8 This is a structural schematic diagram of a heating cabinet according to the seventh embodiment of the present utility model;

[0024] Figure 9 This is a structural schematic diagram of a freezer according to the eighth embodiment of the present utility model;

[0025] Figure 10 A schematic diagram of the movable door mechanism according to the ninth embodiment of this utility model is shown.

[0026] Figure 11 A schematic diagram of the structure of the fourth door body according to the tenth embodiment of this utility model is shown.

[0027] Figure label:

[0028] 100. Heating cabinet; 110. Microwave heating device; 101. Second door; 102. Tableware outlet; 103. Packaging bag outlet; 104. Food serving outlet; 105. Second through hole;

[0029] 200. Refrigerated display case; 201. First door; 202. Food dispensing opening; 203. First through hole; 204. Shelf assembly; 205. Food aisle; 210. Overhead crane; 220. Fourth door; 221. First frame; 222. Foamed door panel; 223. Moving plate; 230. Linkage mechanism; 231. Fifth door; 232. Receiving hopper;

[0030] 11. Frame; 12. First heating chamber; 13. Second heating chamber; 14. First lead screw; 15. First fixed frame; 16. Moving frame; 17. Second fixed frame; 18. Drive wheel; 19. Conveyor belt; 20. Tensioner wheel; 21. Adjustment assembly; 22. Detection switch; 23. Sensor; 24. Push-out mechanism; 25. First magnetron; 26. Second magnetron; 27. First lead screw; 30. Meal box;

[0031] 40. Cutlery module; 50. Bag dispensing module; 60. Movable door mechanism; 61. Drive assembly; 62. Guide rod; 63. Third door body; 64. Anti-pinch rod; 65. Spring; 66. Micro switch. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model. In this document, terms such as first, second, and third are used only to distinguish one feature from another and are not intended to claim or imply any order or association between these features.

[0033] The vending machine may include a refrigerated display case and a heating cabinet arranged side-by-side with it. The refrigerated display case stores food containers awaiting heating, which may contain fresh, pre-processed ingredients. The heating cabinet may have multiple heating chambers to heat the pre-processed ingredients on-site, improving their taste and freshness. These heating chambers may be microwave-heated. When a microwave heating device is installed in the vending machine, the food containers awaiting heating move from the refrigerated display case into the heating chamber, either from the left or right side. After heating, the containers are dispensed from the front of the heating cabinet, meaning they are removed from the front side of the heating chamber. Clearly, the containers move in or out from two intersecting sides of the heating chamber. If the heating chamber uses a sliding door or a rotating door, the containers can only move in and out from one side, resulting in a complex movement path, numerous moving mechanisms, and complex control, leading to low dispensing efficiency.

[0034] In view of this, the first aspect of the present invention provides a microwave heating device for a vending machine, with reference to... Figures 1-5The device includes: a frame 11, a first heating chamber 12, a second heating chamber 13, and a lifting mechanism. The first heating chamber 12 is mounted on the frame 11 and includes a microcrystalline plate for holding a food container 30 to be heated. The second heating chamber 13 has an opening and a heating cavity communicating with the opening, the opening facing the first heating chamber 12. The lifting mechanism is mounted on the frame 11 and connected to the second heating chamber 13 to drive the second heating chamber 13 to move up and down relative to the first heating chamber 12. When the second heating chamber 13 rises to a first position, the food container 30 is exposed outside the heating cavity. When the second heating chamber 13 descends to a second position, it contacts the microcrystalline plate to close the opening, and the food container 30 is located inside the heating cavity.

[0035] Specifically, the food container 30 can hold food to be heated. The first heating chamber 12 can be, for example, a flat structure. By making the second heating chamber 13 movable relative to the first heating chamber 12, when the second heating chamber 13 rises, i.e., the second heating chamber 13 moves away from the first heating chamber 12, the food container 30 to be heated can be placed on the first heating chamber 12, or the food container 30 to be heated can be removed from the first heating chamber 12; when the second heating chamber 13 descends, i.e., the second heating chamber 13 contacts the microcrystalline plate of the first heating chamber 12, the opening is closed, and the food container to be heated is positioned... Inside the heating chamber, the food container to be heated is microwaved to heat the food inside. This makes it easy to move the food container into and out of the heating chamber from the two intersecting sides of the first heating chamber, simplifying the movement path and motion mechanism of the equipment in the vending machine, thereby simplifying the control of the equipment and improving the efficiency of food dispensing. It also allows the food container to be heated to be moved from the refrigerator to the first heating chamber, that is, the food container to be heated to be moved in from the left or right side of the first heating chamber, and the heated food container to be dispensed from the front side of the heating cabinet, that is, the heated food container to be removed from the front side of the first heating chamber.

[0036] In some embodiments, the lifting mechanism includes: a first lead screw assembly, comprising a first lead screw 27 and a first lead screw nut 14 adapted to the first lead screw 27, the two ends of the first lead screw 27 being rotatably connected to the frame 11, and the first lead screw nut 14 being sleeved on the first lead screw 27; a movable frame 16, which is fixedly connected to the first lead screw nut 14; a first fixed frame 15 is provided on the outer side of the shell of the second heating chamber 13, and the movable frame 16 is connected to the first fixed frame 15; wherein, when the first lead screw nut 14 slides along the first lead screw 27, the movable frame 16 drives the second heating chamber 13 to move up and down. Specifically, the second heating chamber 13 is driven to move up and down through the transmission cooperation between the lead screw and the lead screw nut, and the connection between the movable frame 16 and the shell of the second heating chamber 13 makes the up and down movement smoother.

[0037] In some embodiments, four lead screws 27 are provided, each located near one of the four right angles of the frame 11; the movable frame 16 is a rectangular structure enclosed by four crossbars, the second heating chamber 13 is located within the movable frame 16, and the first lead screw nuts 14 are located near one of the four right angles of the movable frame 16. Specifically, the movable frame 16 is a rectangular structure enclosed by four crossbars, the second heating chamber 13 is located in the middle of the movable frame 16, and a first fixing frame 15 is provided around the outer perimeter of the shell of the second heating chamber 13, and the movable frame 16 is connected to the first fixing frame 15. The first lead screw nuts 14 are located at the four right angles of the movable frame 16, so that the four lead screws drive the second heating chamber 13 to move up and down, making the up and down movement more stable and reliable. Furthermore, the first lead screws 27 are located at the four right angles of the frame 11, meaning the second heating chamber 13 moves up and down within the frame 11, which fully utilizes the available space, resulting in a compact overall structure and a small footprint.

[0038] In some embodiments, the lifting mechanism further includes: a first drive assembly located near the bottom of the frame 11, configured to be connected to one end of one of the first lead screws 27 to drive the first lead screws 27 to rotate; a synchronization assembly located at the top of the frame 11, the synchronization assembly including a drive wheel 18 and a conveyor belt 19, the drive wheel 18 being sleeved on the other end of each first lead screw 27, the conveyor belt 19 surrounding the outside of the drive wheel 18, and the conveyor belt 19 engaging with the drive wheel 18 for transmission; and a tensioning assembly located at the top of the frame 11, the tensioning assembly including a tensioning wheel 20, the tensioning wheel 20 being located on the outside of the conveyor belt 19, and the tensioning wheel 20 contacting the conveyor belt 19 to enable the conveyor belt 19 to engage with each of the drive wheels 18 for transmission. Specifically, the first drive assembly may include a motor and a gear pair for meshing transmission. The first drive assembly is located at the bottom of the frame 11, and the synchronization assembly is located at the top of the frame 11 to make full use of the available space, thereby making the overall structure compact and occupying little space. The tensioning assembly can make the conveyor belt 19 mesh with each power wheel 18, thereby driving each first lead screw 27 to rotate synchronously. In this way, the up and down movement of the second heating chamber 13 is more stable, and the second heating chamber 13 can move horizontally upward or downward without easily becoming skewed.

[0039] In some embodiments, the microwave heating device further includes a flattening detection mechanism, which includes an adjustment component 21. The adjustment component 21 includes a fixed column, a flattening spring, and a sleeve. One end of the fixed column is connected and fixed to the first fixed frame 15. The flattening spring is sleeved on the fixed column. The other end of the fixed column is inserted into the sleeve. One end of the sleeve contacts the flattening spring, and the other end of the sleeve is connected and fixed to the bottom of the movable frame 16. The other end of the fixed column is provided with a boss, and the bottom of the sleeve is provided with a retaining ring that is adapted to the boss. When the flattening spring is in an extended state, it prevents the fixed column from disengaging from the sleeve. When the flattening spring is in a compressed state, the boss slides along the inner wall of the sleeve.

[0040] In some embodiments, the flattening detection mechanism further includes a detection component for detecting when the moving frame 16 drives the second heating chamber 13 to move downward, and the second heating chamber 13 contacts the microcrystalline plate to close the opening; the detection component includes a detection switch 22 and a sensor 23; wherein, the moving frame 16 is provided with a second fixing frame 17; the detection switch 22 is provided on the first fixing frame 15, and the second fixing frame 17 is provided with a sensor 23; when the moving frame 16 drives the second heating chamber 13 to move downward, and the second heating chamber 13 contacts the microcrystalline plate, and is blocked by the microcrystalline plate, causing the flattening spring to be in a compressed state, the detection switch 22 on the first fixing frame 15 rises relative to the microcrystalline plate and senses the sensor 23, the first lead screw 27 stops rotating.

[0041] Specifically, when the second heating chamber 13 moves horizontally downwards continuously, it comes into contact with the microcrystalline plate. Due to the obstruction of the microcrystalline plate, the flattening spring is compressed. When the detection switch 22 on the first fixing frame 15 rises relative to the microcrystalline plate and senses the sensor 23, the first lead screw 27 stops rotating. This ensures good contact between the second heating chamber 13 and the microcrystalline plate.

[0042] In some embodiments, the bottom of the second heating chamber 13 is provided with choke teeth; the first heating chamber 12 also includes a reference plate, a microcrystalline plate is disposed on the reference plate, and the reference plate is connected to the frame 11; when the moving frame 16 drives the second heating chamber 13 to move downward, the choke teeth contact the microcrystalline plate, and when the detection switch 22 senses the sensing element 23, the first lead screw 27 stops rotating so that the choke teeth deform.

[0043] Specifically, when the second heating chamber 13 moves horizontally downwards and comes into contact with the microcrystalline plate, the choke teeth deform. At this time, the detection switch 22 and the sensing element 23 sense each other, and the first lead screw 27 stops rotating. Therefore, a good seal can be achieved at the opening of the second heating chamber 13, which can prevent microwave leakage from the heating cavity. In addition, a microwave leakage detection circuit can be provided at the opening of the second heating chamber 13 to keep the microwave leakage within a small and controllable range.

[0044] In some embodiments, the microwave heating device further includes a push-out mechanism 24 mounted on the frame 11, the push-out mechanism 24 being located near the bottom of the frame 11, the push-out mechanism 24 being configured to move horizontally to push the heated food container 30 exposed outside the heating chamber away from the second heating chamber 13.

[0045] In some embodiments, the ejection mechanism 24 includes a push plate, a second drive assembly, and a second lead screw assembly; the second lead screw assembly includes a second lead screw and a second lead screw nut adapted to the second lead screw; the second drive assembly is connected to the second lead screw to drive the second lead screw to rotate, thereby causing the second lead screw nut to move horizontally; the second lead screw is located below the first heating chamber 12, and there are two second lead screws, which are parallel and horizontally arranged; the bottom of the push plate is provided with two support legs, which are respectively located on the outside of the reference plate and are respectively connected to the second lead screw nut; the push plate is located above the microcrystalline plate to horizontally push the heated food container 30 away from the second heating chamber 13; the push plate is provided with a brush for cleaning the microcrystalline plate.

[0046] In some embodiments, the first heating chamber 12 further includes a first magnetron 25, which is located near the bottom of the frame 11; the second heating chamber 13 further includes a second magnetron 26, which is located near the top of the frame 11; wherein the first magnetron 25 and the second magnetron 26 are both located on the same side; both the first magnetron 25 and the second magnetron 26 are connected to a cooling fan, which is used to exhaust the heat generated by the first magnetron 25 and the second magnetron 26 through an air duct. A microwave stirring motor and a waveguide are provided at the bottom of the first heating chamber; a microwave stirring motor and a waveguide are provided at the top of the second heating chamber; when the first magnetron 25 and the second magnetron 26 start working, they generate electromagnetic waves that are transmitted into the cavity through the waveguide to heat the food. Simultaneously, the stirring motor drives the stirring blades inside the cavity to change the waveform path, thereby achieving uniform heating of the food. During the heating process, the vortex fan of the second heating chamber 13 operates to dehumidify the interior of the heating chamber; the cooling fans on the first heating chamber 12 and the second heating chamber 13 dissipate heat from the magnetrons.

[0047] Working Principle: When the food container to be heated is placed on the microcrystalline plate of the first heating chamber 12, the second heating chamber 13 is driven horizontally downward by the lifting mechanism until the choke tooth surface of the second heating chamber 13 contacts the surface of the microcrystalline plate. At the same time, the adjusting component flattens the spring until the sensor triggers the detection switch, the second heating chamber 13 stops moving downward, and the opening of the second heating chamber 13 is closed. A microwave leakage detection circuit is provided around the opening of the second heating chamber 13, which together ensures that the sealing of the first heating chamber 12 and the second heating chamber 13 meets the microwave leakage standard. The first magnetron 25 and the second magnetron 26 start working, generating electromagnetic waves that are transmitted into the cavity through the waveguide to heat the food. At the same time, the stirring motor drives the stirring blades inside the cavity to change the waveform path, thereby achieving uniform heating of the food. During the heating process, the vortex fan of the second heating chamber 13 works to dehumidify the inside of the heating cavity; the cooling fans on the first heating chamber 12 and the second heating chamber 13 dissipate heat from the magnetrons. After heating is complete, the second heating chamber 13 moves upward via a lifting mechanism driven by a motor until it is triggered by a microswitch at its upper limit, at which point the upward movement of the second heating chamber 13 stops. At this time, the ejection mechanism, driven by a motor, pushes the food container forward until it is triggered by a front limit switch, at which point the ejection mechanism stops pushing the food container forward. Then, the push plate retracts until it is triggered by a rear limit switch, at which point the ejection mechanism stops moving. The brush on the push plate can clean any food particles remaining on the surface of the microcrystalline plate. The cooling fan continues to cool the magnetron, with the airflow collected from the top through a flexible hose and exhausted at the bottom.

[0048] A second aspect of this utility model provides a vending machine, including the aforementioned microwave heating device 110. The vending machine provided in this embodiment of the utility model, such as... Figures 6-9As shown, it also includes: a heating cabinet 100 and a freezer 200. The freezer 200 has multiple storage compartments for storing food containers to be heated; each food container contains food to be heated. The heating cabinet 100 is arranged side-by-side with the freezer 200 along a first direction, and the side of the heating cabinet 100 facing the user has a food dispensing port 104. The side of the heating cabinet 100 communicates with the freezer 200 to receive food containers stored in the freezer 200. A microwave heating device 110 is disposed inside the heating cabinet 100, and the microwave heating device 110 includes a first heating chamber and a component that can move vertically relative to the first heating chamber. The second heating chamber; wherein, the first heating chamber is provided with a microcrystalline plate for placing a food container to be heated; the second heating chamber is provided with an opening and a heating cavity communicating with the opening, the opening facing the first heating chamber; when the second heating chamber rises to a first position, the food container to be heated is pushed onto the microcrystalline plate by the freezer 200 along a first direction or the heated food container is pushed onto the food outlet 104 by the microcrystalline plate along a second direction; when the second heating chamber descends to a second position, the second heating chamber contacts the microcrystalline plate to close the opening, and the food container to be heated is located in the heating cavity; the second direction is approximately perpendicular to the first direction.

[0049] Specifically, for example, the first direction can be set as left-right, and the second direction as front-back; the freezer 200 and the heating cabinet 100 can be arranged side-by-side in the left-right direction. The freezer 200 can store food containers to be heated, which can contain fresh pre-processed ingredients, such as pre-prepared semi-finished food containers, like bento boxes or boxed meals, kept in a suitable low-temperature environment to ensure food safety and freshness. The heating cabinet 100 can be equipped with multiple heating chambers to heat the pre-processed ingredients on-site, improving the taste and freshness of the food; among them, the heating chambers can be set to use microwave heating. The microwave heating device 110 is used to heat the food containers. The food containers to be heated are moved into the refrigerator 200 from the left or right side of the microwave heating device 110. After heating, the food containers need to be removed from the front outlet 104 of the heating cabinet 100, that is, the food containers are moved out from the front side of the microwave heating device 110. Obviously, the movement of the food containers is from the two intersecting sides of the microwave heating device 110. If the heating chamber adopts a door that moves up and down or the door rotates to open, the food containers can only move in and out from one side. This makes the movement path of the equipment complicated, with many moving mechanisms and complicated control, resulting in low food dispensing efficiency. In this embodiment of the invention, the first heating chamber 12 can be configured as a flat plate structure. The second heating chamber 13 is designed to move vertically relative to the first heating chamber 12. When the second heating chamber 13 rises, i.e., moves away from the first heating chamber 12, the food container 30 to be heated can be placed on the first heating chamber 12, or it can be removed from the first heating chamber 12. When the second heating chamber 13 descends, i.e., contacts the microcrystalline plate of the first heating chamber 12, and the opening is closed, the food container to be heated is located inside the heating chamber, and microwave heating is performed on the food container to achieve... The food inside the food container is heated; this makes it easy to move the food container into and out of the heating chamber from the two intersecting sides of the first heating chamber, which simplifies the movement path and motion mechanism of the equipment in the vending machine, thereby simplifying the control of the equipment and improving the efficiency of food dispensing; it also allows the food container to be heated to be moved from the refrigerator 200 to the first heating chamber, that is, the food container to be heated is moved in from the left or right side of the first heating chamber, and the heated food container is dispensed from the front food outlet 104 of the heating cabinet 100, that is, the heated food container is moved out from the front side of the first heating chamber; this makes the vending machine smaller, more compact, and more miniaturized.

[0050] In some embodiments, the heating cabinet may be equipped with multiple microwave heating devices spaced vertically apart, so as to heat different ingredients at the same time, thereby improving the efficiency of food preparation and making full use of the space inside the vending machine.

[0051] In some embodiments, the freezer 200 has an openable first door 201 on the side facing the user, and the first door 201 has a food retrieval opening 202; the heating cabinet 100 has an openable second door 101 on the side facing the user, and the second door 101 has a tableware outlet 102, a packaging bag outlet 103, and a food dispensing opening 104; the freezer 200 has a first through hole 203 on the side near the heating cabinet 100, and the heating cabinet 100 has a second through hole 105 on the side. The first through hole 203 and the second through hole 105 are connected and at the same height. The top surface of the microcrystalline plate corresponds to the height of the second through hole 105, so that the food container to be heated is horizontally pushed from the freezer 200 onto the microcrystalline plate along a first direction; the food dispensing opening 104 corresponds to the height of the top surface of the microcrystalline plate, so that the heated food container is horizontally pushed from the microcrystalline plate onto the food dispensing opening 104 along a second direction. For example, a touch-screen ordering display can be installed on the first door 201. The food dispensing slot can be located below the ordering display, corresponding to the second storage area inside the freezer 200. This integration of the ordering display onto the freezer 200 door, with its touch-screen interface, allows users to easily browse menus, place orders, and pay, improving transaction convenience. When the heating cabinet 100 has two microwave heating devices spaced vertically, two dispensing slots 104 are located at corresponding heights on the second door 101. A food dispensing display can be located at the top of the second door 101, with the two dispensing slots 104 positioned below them. A barcode scanner and a tableware outlet are arranged side-by-side with the two dispensing slots. The height of the dispensing slots 104 from the ground is flush with the position of the microcrystalline plate, allowing the food container to be pushed out through the dispensing slots 104. Correspondingly, a support can be provided on the outside of the second door 101, allowing the food container to rest comfortably on the support after being pushed out, facilitating user retrieval. The heating cabinet 100 has a tableware outlet 102, a packaging bag outlet 103, and a food dispensing outlet 104 on one side, ensuring that hot food is served immediately while providing necessary tableware. The refrigerator 200 has a side dish dispensing outlet 202 on one side, allowing users to take condiments themselves, increasing the personalization of the dining experience. The refrigerator 200 can be designed as an independent cabinet, with a first door 201 hinged to the cabinet. When the first door 201 is open, it is convenient for stock clerks to open the door for restocking. The first door 201 can be equipped with a lock to keep the refrigerator 200 door closed, preventing cold air loss.

[0052] In some embodiments, the heating cabinet 100 is provided with a tableware module 40, which is located on the other side of the microwave heating device 110 away from the freezer 200. The tableware module 40 includes: a storage compartment for storing packaging boxes containing tableware, the packaging boxes being rectangular in shape; the packaging boxes being stacked longitudinally in the storage compartment; a discharge port and a replenishment door on one side of the storage compartment, the discharge port being located near the bottom of the storage compartment, and the replenishment door being located above the discharge port; the replenishment door being hinged to the storage compartment; and a pusher belt module located at the bottom of the storage compartment, the packaging boxes being placed on the pusher belt module so that the packaging boxes are output one by one through the discharge port to the tableware outlet 102. Specifically, the storage compartment can be divided into sections to store different types of tableware. The replenishment door provides an entrance for staff to replenish tableware; it can be positioned facing the second door 101 for easy operation and quick replenishment, reducing replenishment time. One side of the replenishment door is hinged to the storage compartment, while the other side can have a latch, facilitating easy opening and closing and locking the door to the storage compartment to ensure normal operation is not disrupted during non-replenishment periods. The height of the discharge port can be slightly higher than the height of a single packaging box to control the output of individual boxes at a time. A push-box belt module can be located at the bottom of the storage compartment. This module includes a drive wheel, a driven wheel, and a belt wrapped around them. Packaging boxes can be stacked on the belt. The drive wheel is driven by a motor, which pushes the tableware boxes from the storage compartment through the discharge port to the output area. The push-box belt module design must consider the size and weight of the tableware to ensure smooth and precise individual transport, preventing collisions or drops. A dispensing sensor can be installed at the dispensing port to detect whether the tableware packaging box has been successfully delivered and reached the designated location. Once the tableware packaging box passes the dispensing sensor, a signal indicating successful dispensing can be sent, thus improving the accuracy of tableware dispensing and reducing errors. The tableware dispensing mechanism may also include a shortage warning sensor, which can be installed near the bottom of the storage compartment or within the monitoring area of ​​the storage compartment. When the tableware inventory falls below a preset threshold, the shortage warning sensor sends a signal to the control system, reminding staff to replenish the tableware in a timely manner. This ensures the continuity of tableware supply and avoids customer waiting or service interruptions due to tableware shortages.

[0053] In some embodiments, the heating cabinet 100 is equipped with a bag dispensing module 50, which is located below the tableware module 40. The bag dispensing module 50 includes a hopper frame and a rotatable roller mounted on the hopper frame. The roller is equipped with wrapped packaging bags. When the roller rotates, it conveys the packaging bags to the packaging bag outlet 103. Specifically, the packaging bags are, for example, environmentally friendly bags. Multiple packaging bags can be wrapped around the roller in multiple layers. A dividing line can be provided between two packaging bags. The roller is mounted on the hopper frame and is rotatable. After the roller rotates a certain number of times, it can convey the bag head through the hopper frame to the packaging bag outlet 103 for customers to pick up themselves. The bag dispensing module 50 may be equipped with a material shortage detection sensor and a counting detection sensor. The material shortage detection sensor is installed at the bottom of the hopper frame and can detect the minimum diameter of the packaging bag when it is used to the smallest unit. When the stock is lower than a preset threshold, the material shortage detection sensor sends a signal to the control system to remind the staff to replenish the packaging bags in time. This can ensure the continuity of supply and avoid customer waiting or service interruption due to material shortage. The counting sensor is installed on the hopper frame, located on the side near the packaging bag outlet 103. It can count by detecting the notches on the packaging bags. When the control system issues the bag dispensing command, the counting sensor can detect whether the number of bags dispensed is correct, which can prevent excessive bag dispensing from increasing operating costs, while ensuring the stable operation of the equipment and improving the customer experience. When the heated food container is pushed out, a packaging bag will be automatically delivered, and the customer can pack it themselves, which improves the flexibility of food preparation and packaging and makes it convenient for customers to pick up their food.

[0054] In some embodiments, such as Figure 10As shown, the vending machine further includes a movable door mechanism 60, which is located at the food dispensing port 104. The movable door mechanism 60 includes a drive assembly 61, a guide rod 62, and a third door body 63. The drive assembly 61 is connected to the third door body 63, and the third door body 63 is slidably connected to the guide rod 62. The drive assembly 61 is used to drive the third door body 63 to slide longitudinally along the guide rod 62. When the third door body 63 moves away from the food dispensing port 104, it pushes the heated food container to the food dispensing port. When the third door body 63 is located at the food dispensing port 104, it is used to close the food dispensing port 104 to isolate the heating cabinet 100 from the outside world. Specifically, the movable door mechanism 60 may also include a mounting frame. The guide rod 62 and the drive assembly 61 can both be mounted on the mounting frame. The drive assembly 61 may include, for example, a motor, a drive wheel, a driven wheel, and a belt. The drive wheel can be connected to the output shaft of the motor, and the drive wheel and the driven wheel can be respectively located on the upper and lower sides of the mounting frame. The belt is sleeved on the drive wheel and the driven wheel. The third door 63 is connected to the belt through a transition block so that when the motor drives the drive wheel to rotate, the belt drives the third door 63 to move up and down along the guide rod 62. The drive assembly drives the third door to move upward to cover the food outlet, preventing the heated food box from being stolen when no one is ordering. When someone orders, the customer can take the food through the food outlet, which is convenient for the customer and prevents the food box from falling and breaking, causing unnecessary losses to the customer. When the third door 63 rises to its highest position, it closes the food outlet 104; when the third door 63 falls to its lowest position, the food outlet 104 opens. Correspondingly, a bracket can be provided on the outside of the second door 101, and the food container will be placed on the bracket after being pushed out, so as to facilitate the user to pick up the food. At this time, the third door 63 is located between the second door 101 and the first heating chamber. The height of the third door 63 can be set slightly lower than the height of the microcrystalline plate so that the food container can pass through smoothly and play a supporting role for the food container, and can prevent the food container from getting stuck or falling between the second door 101 and the first heating chamber.

[0055] In some embodiments, the movable door mechanism 60 further includes: an anti-pinch assembly, which is installed near the top of the guide rod 62; the anti-pinch assembly includes an anti-pinch rod 64, a spring 65, and a micro switch 66; the spring 65 is sleeved on the guide rod 62, and the bottom end of the spring 65 contacts the anti-pinch rod 64; both ends of the anti-pinch rod 64 are sleeved on the guide rod 62 so that the anti-pinch rod 64 slides along the guide rod 62; a fixing member is sleeved on the guide rod 62 to prevent the anti-pinch rod 64 from moving downward; the drive rod of the micro switch 66 contacts the top surface of the anti-pinch rod 64; when the third door 63 slides upward to a preset position, and there is a foreign object between the anti-pinch rod 64 and the third door 63, the anti-pinch rod 64 moves upward and compresses the spring 65 to act on the drive rod of the micro switch 66, thereby triggering a signal to the micro switch 66. Specifically, the micro switch 66 can be a mechanical micro switch with a drive rod. The micro switch 66 can be mounted on a mounting bracket. The movable door mechanism 60 may also include a limit detection assembly, which may include an upper limit detection sensor, a lower limit detection sensor, and a sensing element. The sensing element is connected and fixed to the third door body 63. The upper limit detection sensor and the lower limit detection sensor are respectively and spaced apart on the mounting bracket. When the sensing element senses the lower limit detection sensor, the drive assembly 61 stops running, and the third door body 63 is at the bottom. At this time, the door opens... When the food outlet opens, customers can collect their food. When the sensor detects the upper limit, the drive assembly 61 stops operating, the third door 63 is at the top, and the food outlet closes. At this time, the third door 63 is in slight contact with the anti-pinch lever 64, and the microswitch 66 at the top is not triggered. If a foreign object is caught, the anti-pinch lever 64 moves upward and compresses the spring 65, which in turn acts on the drive rod of the microswitch 66, triggering the microswitch 66. This causes the drive assembly 61 to move the third door 63 downward, opening the food outlet to ensure safety. Additionally, a safety light curtain is installed on the door to detect if a customer is collecting food at the outlet. If a customer is detected, the drive assembly 61 moves the third door 63 downward, opening the food outlet. This provides dual protection to enhance safety.

[0056] In some embodiments, the freezer 200 is equipped with a transport crane 210, which includes a carrying module for carrying the food container to be heated. The carrying module is configured to move longitudinally and horizontally in a first direction to transport the food container to be heated in the storage compartment to the heating cabinet 100 via a first through-hole 203 and a second through-hole 105. A slidable fourth door 220 is provided at the first through-hole 203. When the fourth door 220 slides away from the first through-hole 203, the food container to be heated enters the heating cabinet 100. When the fourth door 220 is located at the first through-hole 203, it is used to prevent the loss of cold air from the freezer 200. Specifically, the overhead crane 210 is located between the first door 201 and the lunchbox storage area. The overhead crane 210 may include a first frame, a load-bearing module, a first slide rail extending in the left-right direction, and a second slide rail extending in the up-down direction. The first slide rail is located on the upper and lower sides of the lunchbox storage area of ​​the refrigerator 200. The second slide rail is located on the first frame. The first frame is provided with a first slider, which is slidably connected to the first slide rail to realize the left-right lateral movement of the first frame. The load-bearing module may be provided with a second slider, which is slidably connected to the second slide rail to realize the longitudinal movement of the load-bearing module. Furthermore, both the lateral and longitudinal movements of the overhead crane 210 can be realized by motor drive to control the accurate stopping position of the load-bearing module when it moves in the up-down or left-right direction. The carrier module may be equipped with a belt conveyor assembly and a frame body. The belt conveyor assembly is used to connect the food containers to be cooked output from the storage compartment and transfer them into the frame body by the conveyor belt. The frame body may be equipped with a pushing mechanism, which is used to push the food containers to be heated in the frame body onto the microcrystalline plate through the first through hole 203 and the second through hole 105.

[0057] In an exemplary embodiment, the first through-hole 203 can be located on the left side of the freezer 200, flush with the height of the second through-hole 105, to facilitate the transport of the food container to be heated via the overhead crane 210 to the first through-hole 203, and then horizontally move it into the heating cabinet 100 through the second through-hole 105. The fourth door 220 can be configured to slide in the front-to-back direction, and can be driven by an electric push rod driven by a low-power DC motor to move the fourth door 220. Precise control circuitry enables automatic opening and closing of the door panel, reducing manual operation. It is also equipped with intelligent sensing devices, such as infrared or proximity sensors, to ensure safe and convenient use. The movement of the fourth door 220 employs a guide device, which can be a precision double-rail guide system. The guide device may include a slide rail made of wear-resistant material and a matching slide sleeve. The slide rail can be located on the upper and lower sides of the first through-hole 203 to ensure smooth operation of the door panel during opening and closing, reducing friction and noise, and extending service life. Figure 11As shown, to facilitate the installation of the fourth door 220, a first frame 221 can be installed on the outer side of the left side of the freezer 200. The fourth door 220, electric push rod, and guide device can all be installed in the first frame 221. An opening can be provided on the first frame 221, and the size of the opening is consistent with the size of the first through hole 203. For better sealing, the perimeter of the opening and the perimeter of the first through hole 203 can be sealed with a sealing element. The fourth door 220 may include a foamed door panel 222 and a movable plate 223. The foamed door panel 222 is filled with high-density polyurethane foam and covered with a rigid material board. The foamed door panel 222 has heat insulation properties and effectively prevents heat exchange between the inside and outside. The size of the foamed door panel 222 is set to be larger than the size of the first through hole 203. Sliding sleeves are provided at the upper and lower ends of the movable plate 223. The sliding sleeves are slidably connected to the slide rail to guide the sliding of the fourth door 220. A connector is provided on the opposite side of the moving plate 223, opposite to the sliding sleeve. The connector is connected to the actuating end of the electric push rod to enable the electric push rod to drive the fourth door 220 to move. Correspondingly, the size of the second through hole 105 can be set to be slightly larger than the first frame 221, so that when the heating cabinet 100 and the cold cabinet 200 are arranged side by side, their sides can be close to each other.

[0058] In some embodiments, the freezer 200 includes a first storage area and a second storage area arranged longitudinally. The first storage area includes a shelf assembly 204, which is arranged longitudinally at intervals. Multiple baffles are arranged at intervals along a first direction on the shelf assembly 204, with two adjacent baffles forming the storage compartment. The second storage area includes multiple food aisles 205 arranged at intervals along the first direction, used for storing and transporting food items. Specifically, the storage compartments are used to hold food containers 30 to be heated. A conveying mechanism may be installed within the storage compartments. This conveying mechanism includes, for example, a motor, a synchronous belt, and a synchronous pulley. The motor drives the synchronous pulley, thereby driving the synchronous belt to rotate, allowing the food containers 30 to enter or leave the storage compartments in a forward-backward direction. Each food container 30 in each storage compartment on the shelf assembly 204 is labeled to identify the food information within it. In addition, multiple food containers 30 containing the same type of ingredients or identical ingredients can be placed in the storage compartment. These containers can be spaced apart in a front-to-back direction to accommodate more containers and facilitate system scheduling and management. Each food container 30 includes a lid and a base. The lid has a protruding first edge, and the base has a protruding second edge. The first edge engages with the second edge to seal the lid and base. Both the lid and base are cut along a second or third direction, and their cross-sections are trapezoidal. The length of the longest side of each food container 30 in the left-right direction (which can be defined as the narrow side) is less than the length of the longest side in the front-to-back direction (which can be defined as the long side). When the food containers 30 are placed in the storage compartment, their narrow sides face forward, and their long sides are positioned along the front-to-back direction. This allows for the arrangement of multiple storage compartments in the same row within the freezer 200 to accommodate more food containers 30. The non-staple food storage area is equipped with multiple non-staple food aisles 205 spaced apart along the left and right directions. The non-staple food aisles 205 are used to store and transport non-staple foods. Non-staple foods can be various condiments, ready-to-eat side dishes, or beverages, such as sauce packets, pickled cabbage packets, cola, etc., so that customers can add and configure according to their personal tastes. These non-staple foods also need to be stored at low temperatures.

[0059] In some embodiments, the vending machine further includes a linkage mechanism 230 located between the first door 201 and the second storage area. The linkage mechanism 230 is mounted on the first door 201 and includes a fifth door 231 and a receiving hopper 232 connected to the bottom of the fifth door 231. The fifth door 231 is configured to rise or fall. When the fifth door 231 rises to the third position, the receiving hopper 232 communicates with the food dispensing port 202. When the fifth door 201 rises to the third position, the receiving hopper 232 communicates with the food dispensing port 202. When the fifth door 231 descends to the fourth position, the fifth door 231 is located at the food dispensing port 202 to prevent the loss of cold air from the freezer 200; the food dispensing channel 205 is provided with a spiral mechanism, in which multiple food items are placed along the second direction, and the spiral mechanism is configured to rotate to output the food items; the top of the receiving hopper 232 is open, and when the fifth door 231 descends to the fourth position, the receiving hopper 232 is lower than the spiral mechanism so that the food items fall into the receiving hopper 232. Specifically, the supplementary food items can be placed in strip-shaped or cylindrical packaging boxes or bags. The spiral mechanism can be designed to extend in the front-to-back direction and can be driven by a motor to rotate. Each rotation of the spiral in the straight direction outputs one supplementary food item. The top of the receiving hopper is designed to be open, and the receiving hopper 232 can have an opening on the side near the first door 201. The size of the opening is adapted to the supplementary food dispensing port. The up-and-down movement of the fifth door 231 can be achieved by a motor-driven synchronous belt structure. When the user needs to take the supplementary food item, the spiral mechanism is driven by the motor to rotate, outputting one supplementary food item into the receiving hopper. The fourth door rises to the high position, and the opening of the receiving hopper aligns with the supplementary food dispensing port 202, allowing the user to take the supplementary food item from the receiving hopper. Subsequently, the fourth door descends to the low position to seal the supplementary food dispensing port 202, preventing the loss of cold air inside the freezer 200.

[0060] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A microwave heating device for a vending machine, characterized in that, include: frame; The first heating chamber is mounted on the frame and includes a microcrystalline plate for placing the food container to be heated. The second heating chamber has an opening and a heating cavity communicating with the opening, the opening facing the first heating chamber; A lifting mechanism is mounted on the frame and connected to the second heating chamber to drive the second heating chamber to move up and down relative to the first heating chamber. When the second heating chamber rises to the first position, the food container to be heated is exposed outside the heating chamber. When the second heating chamber descends to the second position, the second heating chamber contacts the microcrystalline plate to close the opening, and the food container to be heated is located inside the heating chamber.

2. The microwave heating device according to claim 1, characterized in that, The lifting mechanism includes: The first lead screw assembly includes a first lead screw and a first lead nut adapted to the first lead screw. The two ends of the first lead screw are respectively rotatably connected to the frame, and the first lead nut is sleeved on the first lead screw. A movable frame is fixedly connected to a first nut, and a first fixing frame is provided on the outer side of the shell of the second heating chamber, with the movable frame connected to the first fixing frame; wherein, When the first nut slides along the first lead screw, the moving frame causes the second heating chamber to move up and down.

3. The microwave heating device according to claim 2, characterized in that, The first lead screw is provided in four parts, which are respectively located at the four right angles near the frame; The movable frame is a rectangular structure enclosed by four crossbars. The second heating chamber is located in the movable frame, and the first nut is located at the four right angles near the movable frame.

4. The microwave heating device according to claim 3, characterized in that, The lifting mechanism also includes: A first drive assembly is located near the bottom of the frame and is configured to be connected to one end of one of the first lead screws to drive the first lead screw to rotate. A synchronization assembly is located at the top of the frame. The synchronization assembly includes a drive wheel and a conveyor belt. The drive wheel is sleeved on the other end of each of the first lead screws. The conveyor belt surrounds the outside of the drive wheel and engages with the drive wheel for transmission. A tensioning assembly is disposed at the top of the frame. The tensioning assembly includes a tensioning wheel, which is located on the outside of the conveyor belt and contacts the conveyor belt to engage with each of the drive wheels for transmission.

5. The microwave heating device according to claim 2, characterized in that, Also includes: A flattening detection mechanism includes an adjustment component and a detection component. The adjustment component includes a fixed column, a flattening spring, and a sleeve. One end of the fixed column is connected and fixed to the first fixed frame. The flattening spring is sleeved on the fixed column. The other end of the fixed column is inserted into the sleeve. One end of the sleeve contacts the flattening spring, and the other end of the sleeve is connected and fixed to the bottom of the movable frame. The other end of the fixed column is provided with a boss, and the bottom of the sleeve is provided with a retaining ring that is adapted to the boss. When the flattening spring is in an extended state, it prevents the fixed column from disengaging from the sleeve. When the flattening spring is in a compressed state, the boss slides along the inner wall of the sleeve. The movable frame is provided with a second fixed frame; The detection component is used to detect when the moving frame causes the second heating chamber to move downwards, and the second heating chamber contacts the microcrystalline plate to close the opening; the detection component includes a detection switch and a sensor; wherein... The detection switch is mounted on the first fixed frame, and the sensor is mounted on the second fixed frame; When the moving frame moves the second heating chamber downwards, the second heating chamber comes into contact with the microcrystalline plate. Due to the obstruction of the microcrystalline plate, the flattening spring is in a compressed state. When the detection switch on the first fixed frame rises relative to the microcrystalline plate and senses the sensing element, the first lead screw stops rotating.

6. The microwave heating device according to claim 5, characterized in that, The bottom of the second heating chamber is equipped with choke teeth; The first heating chamber also includes a reference plate, on which a microcrystalline plate is disposed, and the reference plate is connected to the frame. When the moving frame moves the second heating chamber downwards, the choke tooth contacts the microcrystalline plate, and the detection switch senses the sensor, the first lead screw stops rotating, so that the choke tooth deforms.

7. The microwave heating device according to claim 6, characterized in that, Also includes: An ejection mechanism, mounted on the frame and located near the bottom of the frame, is configured to move horizontally to push a heated food container exposed outside the heating chamber away from the second heating chamber.

8. The microwave heating device according to claim 7, characterized in that, The ejection mechanism includes a push plate, a second drive assembly, and a second lead screw assembly; The second lead screw assembly includes a second lead screw and a second lead nut adapted to the second lead screw. The second drive assembly is connected to the second lead screw to drive the second lead screw to rotate, thereby causing the second lead nut to move horizontally. The second lead screw is located below the first heating chamber, and there are two second lead screws, which are parallel and horizontally arranged. The bottom of the push plate is provided with two support legs, which are respectively located on the outside of the reference plate and connected to the second nut. The push plate is located above the microcrystalline plate to horizontally push the heated food container away from the second heating chamber. The push plate is equipped with a brush for cleaning the microcrystalline plate.

9. The microwave heating apparatus according to any one of claims 1-8, characterized in that, The first heating chamber also includes a first magnetron, which is located near the bottom of the frame; The second heating chamber also includes a second magnetron, which is located near the top of the frame; wherein, The first magnetron and the second magnetron are both located on the same side; both the first magnetron and the second magnetron are connected to cooling fans, which are used to dissipate the heat generated by the first magnetron and the second magnetron through the air duct.

10. A vending machine, characterized in that, include: The microwave heating apparatus as described in any one of claims 1-9.

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