A pre-prepared food steaming apparatus

Abstract

The application discloses a prefabricated food steaming device and relates to the technical field of prefabricated food processing. The prefabricated food steaming device comprises a steaming box body, a containing cavity for containing prefabricated food packages is arranged in the steaming box body, a mounting rack is further arranged in the containing cavity, a plurality of vertical direction stacked layer plates are fixed on the mounting rack, a plurality of first flow-through holes for steam to pass through are arranged in each layer plate, a food clamp is arranged on each layer plate, the food clamp is composed of an upper clamp plate and a lower clamp plate, the upper clamp plate and the lower clamp plate are hingedly connected, and the prefabricated food package is placed between the upper clamp plate and the lower clamp plate. The prefabricated food steaming device is powered by a turning component, the upper clamp plate and the lower clamp plate on the layer plate are driven to turn over, the prefabricated food package is turned over during the heating process, the upper and lower surfaces of the prefabricated food package are uniformly contacted with steam, and the cooking effect is improved.

Description

Technical Field

[0001] This invention relates to the field of pre-prepared food processing technology, specifically to a pre-prepared food steaming and cooking device. Background Technology

[0002] Pre-prepared dishes, also known as ready-to-cook meals, are a product of the food industry. They evolved from pre-prepared vegetables, which are fresh vegetables that have undergone grading, washing, peeling, cutting, disinfection, and packaging to meet the hygiene requirements for direct cooking or raw consumption. Pre-prepared foods have greatly facilitated people's lives, eliminating the complicated preparation process of cooking. Pre-prepared foods can be eaten after only a little heating or processing.

[0003] By steaming pre-cooked dishes in a high-temperature steamer or steam pot, the 110℃ high-temperature steam penetrates the food fibers, shortening the cooking time by more than 20%, while avoiding undercooking. The steam environment also prevents pre-cooked dishes from dehydrating, maintains the tenderness of meat, and reduces the loss of heat-sensitive nutrients such as vitamin C.

[0004] This method can shorten the food preparation time and simplify the kitchen process, while also achieving standardization and quality control of the dishes. Its core advantage lies in reducing costs, improving efficiency, and controlling quality through industrialized processes.

[0005] In order to improve cooking efficiency, traditional pre-cooked food steaming equipment stacks multiple pre-cooked food packages in the steamer at once. When steaming multiple layers, the bottom of the food comes into contact with more steam, which can easily lead to overcooking, while the top may not be fully cooked, resulting in undercooked food and affecting the cooking effect. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a pre-cooked food steaming and cooking device, which solves the problem that when multiple layers of pre-cooked food packages are stacked in a steamer, the bottom of the food comes into contact with more steam during steaming, making it prone to overcooking, while the top is not fully cooked and may be undercooked, thus affecting the cooking effect of the ingredients.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a pre-prepared food steaming and cooking device, comprising a steaming chamber, wherein the steaming chamber has an internal cavity for accommodating pre-prepared food cooking packets, the pre-prepared food steaming and cooking device further comprising a support mechanism, including a mounting frame disposed within the cavity, wherein multiple vertically stacked shelves are fixed on the mounting frame, each shelf having several first flow holes for steam to pass through, the accommodating mechanism comprising food clips placed on each shelf, the food clips being composed of an upper clip and a lower clip, the upper clip and the lower clip being hinged together, the pre-prepared food cooking packets being placed between the upper clip and the lower clip, each upper clip and the lower clip having a second flow hole for steam to pass through and communicating with the first flow holes, and each shelf having a flipping component for controlling the upper clip and the lower clip to flip over.

[0010] Through the above technical solution, several pre-cooked meal packs are placed between and held by the upper and lower clamping plates. The upper and lower clamping plates are supported by the mounting frame and the shelf. The flipping component provides power to drive the upper and lower clamping plates on the shelf to flip, so that the pre-cooked meal packs are flipped during the heating process. This ensures that the upper and lower sides of the pre-cooked meal packs are in uniform contact with the steam, thus improving the cooking effect.

[0011] Preferably, the flipping assembly includes ear plates fixed to both sides of each shelf, and a first connecting rod is hinged to the top of each ear plate. The end of the first connecting rod away from the ear plate is rotatably connected to the middle position of the side wall of the lower clamping plate through a first short shaft. A second connecting rod is hinged to both sides of each shelf, and the end of the second connecting rod away from the shelf is hinged to one end of the side wall of the lower clamping plate. A motor that drives the first connecting rod to rotate around the first short shaft is fixed on the steam oven body.

[0012] The above technical solution uses a motor to provide power, which drives the first short shaft and the first connecting rod, which are coaxially fixed with the motor output shaft, to rotate. This, in turn, causes the upper and lower clamping plates to flip, thus turning the pre-cooked meal pack over. The second connecting rod restricts the flipping path of the upper and lower clamping plates.

[0013] Preferably, the front side of the steam oven body has a working groove that communicates with the receiving cavity, and the front side of the steam oven body is hinged to a sealing door that closes the working groove. The sealing door has several material outlets, each of which corresponds to a shelf. The size of the material outlet is slightly larger than the size of the upper and lower clamping plates. The sealing door is hinged to a material outlet door that closes each material outlet.

[0014] With the above technical solution, when the cooking time of the pre-cooked food package between one of the upper and lower clamping plates is less than that between other pre-cooked food packages between the upper and lower clamping plates, the retrieval door corresponding to that pre-cooked food package is opened to expose the retrieval port, so as to take out the pre-cooked food package, so as to adapt to pre-cooked food packages with different cooking times.

[0015] Preferably, the upper surface of the lower clamping plate is inclined surface A, with the end closest to the material dispensing door being the lowest end and the end furthest from the material dispensing door being the highest end. The lower surface of the upper clamping plate is inclined surface B, which is adapted to inclined surface A. The lower surface of the upper clamping plate is also provided with a clamping groove for accommodating pre-prepared meal packs.

[0016] With the above technical solution, the upper and lower clamps form a square box structure when closed, and the pre-cooked meal pack is located in the clamping groove. When the upper clamp is rotated open, the pre-cooked meal pack slides down along the inclined surface A towards the feeding port under the action of gravity, making it convenient to pick up the food.

[0017] Preferably, the upper clamping plate and the lower clamping plate are connected by a connecting component, which is located near the material feeding port.

[0018] By using the above technical solution, and by setting a connecting component to connect the opening ends of the upper and lower clamping plates, the possibility of the pre-cooked meal pack coming off the upper and lower clamping plates during the flipping process is reduced.

[0019] Preferably, the connecting assembly includes an upper movable groove on the upper clamping plate near the material inlet, and a lower movable groove on the lower clamping plate near the material inlet that communicates with the upper movable groove. An L-shaped clamping rod is integrally formed at the middle of the top of the upper movable groove. The bottom end of the clamping rod extends out of the upper movable groove and into the lower movable groove. A limiting block is fixed on the wall of the lower movable groove and is adapted to the clamping rod. When the upper and lower clamping plates are closed, the clamping rod extends into the lower movable groove. The upper and lower clamping plates are connected to the clamping rod by the limiting block. A control assembly is provided on the lower movable groove to control the movement of the clamping rod to open the upper and lower clamping plates.

[0020] With the above technical solution, when the upper and lower clamping plates are closed, the locking rod extends into the lower movable groove. The upper and lower clamping plates are connected to the locking rod by a limiting block. When it is necessary to open the upper and lower clamping plates, a control component is set to make the locking rod move and disconnect from the limiting block, so as to open the upper clamping plate.

[0021] Preferably, the control component includes a movable rod integrally formed with the bottom of the movable groove, and the top of the movable rod has an integrated clamp head that is adapted to the clamp rod and has an L-shaped cross-section, with the clamp head close to the bottom of the clamp rod.

[0022] With the above technical solution, without external interference, the clamp head approaches the clamp rod but does not contact it. When the movable rod is pressed, the clamp head moves toward the clamp rod and pushes the clamp rod to disconnect from the limit block. At this time, the upper clamp can be opened.

[0023] Preferably, the upper clamping plate and the lower clamping plate are connected by a spring-loaded assembly.

[0024] With the above technical solution, by setting up a pop-up component, the upper clamping plate will automatically lift up after the movable rod is pressed, without the need for staff to manually open the upper clamping plate.

[0025] Preferably, the pop-up assembly includes an upper circular hole on the side of the upper clamping plate away from the sealing door, and a lower circular hole on the side of the lower clamping plate away from the sealing door that communicates with the upper circular hole. A second short shaft is fixed inside the upper circular hole, and an upper gear is nested outside the second short shaft and rotatably connected to the second short shaft and located inside the upper circular hole. The upper gear extends out of the upper clamping plate through the upper circular hole and into the lower circular hole. A third short shaft is fixed inside the lower circular hole, and a lower gear is nested outside the third short shaft and rotatably connected to the third short shaft and located inside the lower circular hole. The lower gear meshes with the upper gear, and the upper gear is connected to the second short shaft by a torsion spring.

[0026] With the above technical solution, when the movable rod is pressed and the locking rod is disengaged from the limiting block, the torsion spring rebounds, driving the upper gear to rotate, thereby causing the upper clamping plate to spring open, facilitating material unloading.

[0027] Preferably, the upper clamping plate has a sloping groove at the end away from the sealing door that is compatible with the lower clamping plate.

[0028] The above technical solution uses a sloping groove on the upper clamping plate to limit the rotation angle of the upper clamping plate, making it convenient for workers to reset the upper clamping plate through the material handling port.

[0029] (III) Beneficial Effects

[0030] This invention provides a pre-cooked food steaming and cooking device. It has the following beneficial effects:

[0031] (1) In this pre-cooked food steaming and cooking equipment, several pre-cooked food packages are placed between the upper and lower clamping plates and held by the upper and lower clamping plates. Each upper and lower clamping plate is supported by the mounting frame and the shelf. The flipping component provides power to drive the upper and lower clamping plates on the shelf to flip, so that the pre-cooked food packages are flipped during the heating process, so that the upper and lower sides of the pre-cooked food packages are evenly contacted with steam, thereby improving the cooking effect.

[0032] (2) When the cooking time of the pre-cooked food package between one of the upper and lower clamping plates is less than that between other upper and lower clamping plates, the feeding door corresponding to the pre-cooked food package is opened to expose the feeding port so as to take out the pre-cooked food package and adapt to pre-cooked food packages with different cooking times.

[0033] (3) When the pre-cooked food steaming equipment removes part of the cooking package from inside the steamer, the operator can make the end of the tray that enters the feeding port contact the clamp and press the clamp. The pre-cooked food package in the clamping slot moves down along slope A under the action of gravity and falls directly into the tray. The operator does not need to manually pick up the food, which improves the safety of the device. Moreover, the operator can also perform the above operation at a certain distance from the steamer, which further improves the safety of the operator. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram illustrating the structure of the food clip of the present invention;

[0036] Figure 3 This is a schematic diagram illustrating the structure of the second connecting rod in this invention;

[0037] Figure 4 This is a schematic diagram illustrating the structure of the clamping groove in this invention;

[0038] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A;

[0039] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0040] Figure 7 This is a schematic diagram illustrating the structure of the layer plate in this invention;

[0041] In the diagram: 1. Steamer body; 101. Receiving cavity; 2. Mounting rack; 3. Shelf; 301. First flow hole; 4. Food clamp; 401. Upper clamp; 401-1. Inclined surface A; 402. Lower clamp; 402-1. Inclined surface B; 402-2. Clamping groove; 403. Second flow hole; 5. Turning assembly; 501. Ear plate; 502. First connecting rod; 503. First short shaft; 504. Second connecting rod; 6. Working... 7. Groove; 8. Sealing door; 9. Material inlet; 10. Material door; 11. Connecting assembly; 1001. Upper movable groove; 1002. Lower movable groove; 1003. Locking rod; 1004. Limiting block; 1005. Movable rod; 1006. Locking head; 11. Spring-up assembly; 1101. Upper circular hole; 1102. Lower circular hole; 1103. Second short shaft; 1104. Upper gear; 1105. Third short shaft; 1106. Lower gear. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1-7 As shown, the present invention provides a technical solution: a pre-prepared food steaming and cooking device, including a steaming box body 1, the steaming box body 1 having an internal cavity 101 for accommodating pre-prepared food packages, a working groove 6 communicating with the cavity 101 on the front side of the steaming box body 1, and a sealing door 7 that closes the working groove 6 hinged to the front side of the steaming box body 1. This is an existing structure, so it will not be described in detail here.

[0044] like Figure 1 and Figure 2 and Figure 3 and Figure 4 The cavity 101 contains a mounting frame 2, on which multiple vertically stacked shelves 3 are fixed. Each shelf 3 has several first flow holes 301 through which steam passes. A food clip 4 is placed on each shelf 3. The shelf 3 supports the food clip 4. The food clip 4 consists of an upper clip 401 and a lower clip 402, which are hinged together. The upper surface of the lower clip 402 is an inclined surface A 401-1, and the end closest to the material gate 9 is the lowest end. One end of the material gate 9 is the highest point. The lower surface of the upper clamping plate 401 is a B inclined surface 402-1 that is adapted to the A inclined surface 401-1. The lower surface of the upper clamping plate 401 is also provided with a clamping groove 402-2 to accommodate the pre-cooked food package. When the upper clamping plate 401 and the lower clamping plate 402 are closed, they form a square box structure. The pre-cooked food package is located in the clamping groove 402-2. When the upper clamping plate 401 is rotated open, the pre-cooked food package slides down the A inclined surface 401-1 towards the material outlet 8 under the action of gravity, which is convenient for picking up the material.

[0045] like Figure 2 and Figure 3 and Figure 4 and Figure 7 Both the upper clamping plate 401 and the lower clamping plate 402 have a second flow hole 403 through which steam flows and which communicates with the first flow hole 301. The first flow hole 301 and the second flow hole 403 are arranged alternately to facilitate steam flow.

[0046] like Figure 2 and Figure 3 and Figure 4To improve cooking results, each shelf 3 is equipped with a flipping assembly 5 that controls the flipping of the upper clamping plate 401 and the lower clamping plate 402 to achieve the flipping effect. The flipping assembly 5 includes ear plates 501 fixed on both sides of each shelf 3. Each ear plate 501 is hinged to a first connecting rod 502 at its top. The end of the first connecting rod 502 away from the ear plate 501 is rotatably connected to the middle position of the side wall of the lower clamping plate 402 through a first short shaft 503. Each shelf 3 is hinged to a second connecting rod 504 on both sides. The end of the second connecting rod 504 away from the shelf 3 is hinged to one end of the side wall of the lower clamping plate 402. A motor that drives the first connecting rod 502 to rotate around the first short shaft 503 is fixed on the steam oven body 1.

[0047] like Figure 2 and Figure 3 and Figure 4 Powered by a motor, the first short shaft 503 and the first connecting rod 502, which are coaxially fixed to the motor output shaft, rotate, thereby causing the upper clamping plate 401 and the lower clamping plate 402 to flip over, thus turning the pre-cooked meal pack over. The second connecting rod 504 restricts the flipping path of the upper clamping plate 401 and the lower clamping plate 402, so that the pre-cooked meal pack can be turned over during the heating process, making both the top and bottom sides of the pre-cooked meal pack evenly contact the steam and improving the cooking effect.

[0048] like Figure 1 The sealing door 7 has several material outlets 8, each corresponding to a shelf 3. The size of the material outlet 8 is slightly larger than that of the upper clamping plate 401 and the lower clamping plate 402. The sealing door 7 is hinged to a material outlet door 9 that closes each material outlet 8. When the cooking time of the pre-cooked food package between one of the upper clamping plates 401 and the lower clamping plate 402 is less than that between other pre-cooked food packages between the upper clamping plates 401 and the lower clamping plate 402, the material outlet door 9 corresponding to that pre-cooked food package is opened to expose the material outlet 8, so as to take out the pre-cooked food package and adapt to pre-cooked food packages with different cooking times.

[0049] like Figure 3 and Figure 4 and Figure 5 The upper clamping plate 401 and the lower clamping plate 402 are connected by a connecting component 10. The connecting component 10 is located near the bottom of the upper clamping plate 401. By connecting the opening ends of the upper clamping plate 401 and the lower clamping plate 402 with the connecting component 10, the possibility of the pre-cooked food package coming out of the upper clamping plate 401 and the lower clamping plate 402 during the flipping process is reduced.

[0050] like Figure 3 and Figure 4 and Figure 5The connecting assembly 10 includes an upper movable groove 1001 formed at the end of the upper clamping plate 401 near the material inlet 8, and a lower movable groove 1002 formed at the end of the lower clamping plate 402 near the material inlet 8, which communicates with the upper movable groove 1001. An L-shaped clamping rod 1003 is integrally formed at the middle of the top of the upper movable groove 1001. The bottom end of the clamping rod 1003 extends out of the upper movable groove 1001 and into the lower movable groove 1002. A limiting block 1004, located beside the clamping rod 1003 and adapted to it, is fixed to the wall of the lower movable groove 1002. When the upper clamping plate 401 and the lower clamping plate 402 are closed, the clamping rod 1003 extends into the lower movable groove 1002. Inside, the upper clamping plate 401 and the lower clamping plate 402 are connected to the locking rod 1003 by the limiting block 1004. The lower movable groove 1002 is provided with a control component to control the movement of the locking rod 1003 to open the upper clamping plate 401 and the lower clamping plate 402. When the upper clamping plate 401 and the lower clamping plate 402 are closed, the locking rod 1003 extends into the lower movable groove 1002. The upper clamping plate 401 and the lower clamping plate 402 are connected to the locking rod 1003 by the limiting block 1004. When it is necessary to open the upper clamping plate 401 and the lower clamping plate 402, the locking rod 1003 is moved and disconnected from the limiting block 1004 by the control component, so as to open the upper clamping plate 401.

[0051] like Figure 3 and Figure 4 and Figure 5 The control component includes a movable rod 1005 integrally formed with the bottom of the movable groove. The top of the movable rod 1005 has an integrated clamping head 1006 adapted to the clamping rod 1003 and with an L-shaped cross section. The clamping head 1006 is close to the bottom of the clamping rod 1003. Without external interference, the clamping head 1006 is close to the clamping rod 1003 but does not contact the clamping rod 1003. When the movable rod 1005 is pressed, the clamping head 1006 moves toward the clamping rod 1003 and pushes the clamping rod 1003 to disconnect from the limit block 1004. At this time, the upper clamping plate 401 can be opened, and the movable rod 1005 and the clamping rod 1003 have a certain elasticity.

[0052] like Figure 3 and Figure 4 and Figure 6The upper clamping plate 401 and the lower clamping plate 402 are connected by a spring-loaded assembly 11. The spring-loaded assembly 11 includes an upper circular hole 1101 on the side of the upper clamping plate 401 away from the sealing door 7, and a lower circular hole 1102 on the side of the lower clamping plate 402 away from the sealing door 7 that communicates with the upper circular hole 1101. A second short shaft 1103 is fixed inside the upper circular hole 1101, and a rotatably connected object located inside the upper circular hole 1101 is nested outside the second short shaft 1103. An upper gear 1104 extends from an upper clamping plate 401 through an upper circular hole 1101 and into a lower circular hole 1102. A third short shaft 1105 is fixed inside the lower circular hole 1102. A lower gear 1106, rotatably connected to the third short shaft 1105 and located inside the lower circular hole 1102, is nested outside the third short shaft 1105. The lower gear 1106 meshes with the upper gear 1104. The upper gear 1104 is connected to the second short shaft 1103 via a torsion spring.

[0053] like Figure 3 and Figure 4 and Figure 6 When the movable rod 1005 is pressed and the locking rod 1003 is pushed to disconnect from the limiting block 1004, the torsion spring rebounds, driving the upper gear 1104 to rotate, thereby causing the upper clamping plate 401 to spring open, making it convenient for unloading.

[0054] like Figure 3 and Figure 4 and Figure 6 The upper clamping plate 401 has a ramp groove at the end away from the sealing door 7 that is compatible with the lower clamping plate 402. By setting the ramp groove on the upper clamping plate 401, the rotation angle of the upper clamping plate 401 is limited, making it convenient for the staff to reset the upper clamping plate 401 through the material handling port 8.

[0055] In use, several pre-prepared meal packs are placed between the upper clamping plate 401 and the lower clamping plate 402 and located in the clamping groove 402-2. The upper clamping plate 401 and the lower clamping plate 402 are closed, and the clamping rod 1003 extends into the lower movable groove 1002. The upper clamping plate 401 and the lower clamping plate 402 are connected to the clamping rod 1003 by the limiting block 1004. The clamping head 1006 is close to the clamping rod 1003 but does not contact the clamping rod 1003. At this time, the pre-prepared meal packs will not detach from the upper clamping plate 401 and the lower clamping plate 402.

[0056] During the steaming process, the motor is turned on, and the power provided by the motor drives the first short shaft 503 and the first connecting rod 502, which are fixed coaxially with the motor output shaft, to rotate. The rotation of the first connecting rod 502 causes the upper clamping plate 401 and the lower clamping plate 402, which are clamped together, to flip over, thereby turning the pre-cooked food package over. The second connecting rod 504 restricts the flipping path of the upper clamping plate 401 and the lower clamping plate 402, so as to facilitate the flipping of the pre-cooked food package during the heating process, so that the upper and lower sides of the pre-cooked food package are evenly contacted with the steam, thereby improving the cooking effect.

[0057] When the pre-prepared meal pack between one of the upper clamping plates 401 and the lower clamping plate 402 requires a short heating time, the worker opens the corresponding dispensing door 9, exposing the dispensing port 8, inserts the tray for dispensing into the dispensing port 8, and ensures that the end of the tray entering the dispensing port 8 contacts and presses the clamping head 1006. At this time, the clamping head 1006 moves and contacts the clamping rod 1003, pushing the clamping rod 1003 to move and disconnect from the limiting block 1004. At this time, the upper clamping plate 401 is not restricted, and the torsion spring returns to its original position. The spring causes the upper gear 1104 to rotate, which in turn causes the lower gear 1106, which meshes with the upper gear 1104, to rotate until the inclined groove of the upper clamping plate 401 contacts the upper surface of the lower clamping plate 402. At this time, the pre-cooked food package in the clamping groove 402-2 moves down along the inclined surface A under the action of gravity and falls directly into the tray. There is no need for the staff to manually pick up the food, which improves the safety of the device. Moreover, the staff can perform the above operation even when there is a certain distance between them and the steamer body 1, which further improves the safety of the staff.

[0058] After the material is taken out, the staff can use a long rod or other similar structure to insert into the material taking port 8 and press the upper clamp 401 to close the upper clamp 401 and the lower clamp 402 without affecting its operation. This is the process of using the pre-cooked food steaming and cooking equipment. At the same time, the contents not described in detail in this manual are all existing technologies known to those skilled in the art.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-prepared food cooking device, comprising a steamer body, wherein the steamer body has an internal cavity for accommodating pre-prepared food packets, characterized in that: Pre-cooked food steaming equipment also includes: The support mechanism includes a mounting frame disposed within the receiving cavity, on which multiple vertically stacked shelves are fixed, and each shelf has several first flow holes through which steam passes. The containing mechanism includes food clips placed on each shelf. The food clips consist of an upper clip and a lower clip, which are hinged together. A pre-prepared meal pack is placed between the upper clip and the lower clip. Both the upper and lower clips have a second flow hole through them for steam circulation and which communicates with the first flow hole. Each shelf is provided with a flipping component to control the flipping of the upper and lower clips to achieve the flipping. The front side of the steam oven body has a working groove that communicates with the receiving cavity. The front side of the steam oven body is hinged to a sealing door that closes the working groove. The sealing door has several material outlets, each of which corresponds to a shelf. The size of the material outlet is slightly larger than the size of the upper and lower clamping plates. The sealing door is hinged to a material outlet that closes each material outlet. The upper surface of the lower clamping plate is inclined surface A, with the end closest to the material dispensing door being the lowest end and the end furthest from the material dispensing door being the highest end. The lower surface of the upper clamping plate is inclined surface B, which is adapted to inclined surface A. The lower surface of the upper clamping plate is also provided with a clamping groove to accommodate pre-made meal packs. The upper and lower clamping plates are connected by a connecting component, which is located near the material inlet. The connecting assembly includes an upper movable groove on the upper clamping plate near the material inlet, and a lower movable groove on the lower clamping plate near the material inlet that communicates with the upper movable groove. An L-shaped clamping rod is integrally formed at the middle of the top of the upper movable groove. The bottom end of the clamping rod extends out of the upper movable groove and into the lower movable groove. A limiting block is fixed on the wall of the lower movable groove and is adapted to the clamping rod. When the upper and lower clamping plates are closed, the clamping rod extends into the lower movable groove. The upper and lower clamping plates are connected to the clamping rod by the limiting block. A control assembly is provided on the lower movable groove to control the movement of the clamping rod to open the upper and lower clamping plates. The control component includes a movable rod integrally formed with the bottom of the lower movable groove, and a locking head with an L-shaped cross-section that is adapted to the locking rod is integrally formed at the top of the movable rod, with the locking head close to the bottom of the locking rod; The upper and lower clamping plates are connected by a spring-loaded assembly. The spring-loaded assembly includes an upper circular hole on the side of the upper clamping plate away from the sealing door, and a lower circular hole on the side of the lower clamping plate away from the sealing door that communicates with the upper circular hole. A second short shaft is fixed inside the upper circular hole. An upper gear is rotatably connected to the second short shaft and located inside the upper circular hole. The upper gear extends out of the upper clamping plate through the upper circular hole and into the lower circular hole. A third short shaft is fixed inside the lower circular hole. A lower gear is rotatably connected to the third short shaft and located inside the lower circular hole. The lower gear meshes with the upper gear. The upper gear is connected to the second short shaft by a torsion spring.

2. The pre-cooked food steaming and cooking equipment according to claim 1, characterized in that: The flipping assembly includes ear plates fixed to both sides of each shelf. Each ear plate is hinged to a first connecting rod at its top. The end of the first connecting rod away from the ear plate is rotatably connected to the middle position of the side wall of the lower clamping plate via a first short shaft. Each shelf is hinged to a second connecting rod on both sides. The end of the second connecting rod away from the shelf is hinged to one end of the side wall of the lower clamping plate. A motor that drives the first connecting rod to rotate around the first short shaft is fixed on the steam oven body.

3. The pre-cooked food steaming and cooking equipment according to claim 1, characterized in that: The upper clamping plate has a sloping groove at the end away from the sealing door that is compatible with the lower clamping plate.

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