A temperature-controlled warehouse for keeping food warm

CN224269071UActive Publication Date: 2026-05-26HUNAN SANMEI HOME FURNISHING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN SANMEI HOME FURNISHING CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

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Abstract

This utility model discloses a constant temperature chamber for keeping food warm, comprising a constant temperature chamber body with a bowl inlet / outlet. Inside the constant temperature chamber body is a turntable assembly for placing bowls, and outside the constant temperature chamber body is a heating assembly. This utility model provides a constant temperature chamber that, through a near-sealed design, heats the internal air. Therefore, when food is placed inside, the internal air temperature is higher than the external air temperature, ensuring the food remains warm for a short time. Compared to steaming, because there is no steam involved, the taste of the food is not significantly different from before warming. Compared to graphene heating tabletops, this patent ensures that the food remains warm even when the bowls are warm.
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Description

Technical Field

[0001] This utility model relates to the field of food insulation technology, and in particular to a constant temperature chamber for keeping food warm. Background Technology

[0002] When the weather is cold, family and friends often choose hot pot for gatherings. This is mainly because preparing a variety of dishes is necessary, and the cold weather causes some dishes to cool down before others are ready. Therefore, the following three solutions are commonly used for gatherings in cold weather:

[0003] The method of serving food while eating is adopted, but this method leads to a poor gathering effect because people who are served later cannot taste the dishes served earlier, and people who are served earlier cannot taste the dishes served later.

[0004] Using a steamer to keep food warm is not ideal because each dish is prepared differently. When dishes cooked in a wok are placed in a steamer to keep them warm, the flavor of the dishes changes and they lose their original taste.

[0005] The tabletop heating plate, commonly a graphene heating plate, heats the food by electricity, which heats the bottom of the bowl containing the food, thus keeping the food inside warm. However, as users know, while the bowl remains warm to the touch, it is not hot. In suitable weather, this keeps the food warm, but in cold weather, the heat from the bowl is difficult to transfer to the food, often resulting in solidified oil on the surface of the food, even though the bowl remains warm. Therefore, the effect is not ideal. Utility Model Content

[0006] In view of this, in order to solve the problem that it is difficult to preserve the original flavor of dishes in cold weather and that the heat preservation effect is not good, this utility model proposes a constant temperature chamber for keeping food warm.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A temperature-controlled chamber for keeping food warm includes a temperature-controlled chamber body, an inlet / outlet for bowls and utensils, a food turntable assembly for placing bowls and utensils inside the temperature-controlled chamber body, and a heating assembly on the outside of the temperature-controlled chamber body.

[0009] As a further improvement to the above technical solution:

[0010] An optimized version of the above technical solution is as follows: the constant temperature chamber includes an outer shell, a bottom plate, an intermediate body, and an upper cover plate. The outer shell is arranged around the outer edge of the bottom plate. The bottom plate has a first intermediate through hole in the middle. An intermediate body is arranged on the inner edge of the first intermediate through hole. The intermediate body is hollow. An upper cover plate is arranged on the upper end of the outer shell and the intermediate body.

[0011] An optimized version of the above technical solution is that a second intermediate through hole is provided in the middle of the upper cover plate, and a heat control cover plate is placed over the second intermediate through hole.

[0012] An optimized version of the above technical solution is that the vegetable turntable assembly includes a vegetable tray sleeved on the outer periphery of the intermediate body, a rotating ring disposed below the vegetable tray, and a plurality of ball bearings located between the lower surface of the rotating ring and the upper surface of the base plate.

[0013] An optimized version of the above technical solution is that the lower end of the rotating ring is provided with several raised retaining rings, and a ball bearing is provided between two adjacent raised retaining rings.

[0014] An optimized version of the above technical solution is that the heating component is disposed inside the hollow interior of the intermediate body.

[0015] An optimized version of the above technical solution is that the heating component is any one of heating resistance wire, steam heating rod, or charcoal.

[0016] An optimized version of the above technical solution is that the bowl's inlet / outlet is located on the outer casing.

[0017] An optimized version of the above technical solution is that the bowl's inlet and outlet are provided with an opening and closing door.

[0018] An optimized solution to the above technical solution is that the opening and closing door and the outer casing are connected by a sliding connection or a hinge connection.

[0019] Compared with existing technologies, the beneficial effects of this utility model are:

[0020] This invention provides a constant temperature chamber. Through a near-sealed constant temperature chamber, the internal air is heated, so that when food is placed inside, the internal air temperature is higher than the external air temperature, thus ensuring that the food is warm for a short time. At the same time, compared with the heating method of a steamer, because there is no steam involved, the taste of the food is not much different from before it was kept warm. Compared with graphene heating tabletops, this patent ensures that the food is also warm when the bowl is warm.

[0021] This invention uses a turntable to ensure that dishes can rotate during placement, preventing users from being unable to reach inside to place or retrieve them. In conjunction with the central body, the rotation does not shift, and the heating source is located in the center, ensuring that each dish receives almost the same amount of hot air, resulting in consistent heat retention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the present invention.

[0025] Figure 4 for Figure 3 A magnified structural diagram of area A in the middle.

[0026] In the diagram: 1. Temperature-controlled chamber; 11. Outer shell; 12. Base plate; 13. Intermediate body; 14. Top cover; 15. Heat control cover; 2. Bowl inlet / outlet; 3. Vegetable turntable assembly; 31. Vegetable tray; 32. Rotating ring; 33. Ball bearing; 34. Raised retaining ring; 4. Heating assembly; 5. Opening / closing door. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] As attached Figure 1 To be continued Figure 3 As shown, the main body of the technical solution in this embodiment is the constant temperature chamber 1. The constant temperature chamber 1 is mainly a well-sealed box, so its shape has no special properties. Figure 1 This is manifested in one form, specifically as follows:

[0031] The constant temperature chamber 1 is cylindrical in shape, with a bottom plate 12, an outer shell 11, and an upper cover plate 14 connected sequentially from bottom to top. The outer shell 11 is arranged around the outer edge of the bottom plate 12. A first intermediate through hole and a second intermediate through hole are respectively arranged coaxially between the bottom plate 12 and the upper cover plate. An intermediate body 13 is arranged on the inner edge of the first intermediate through hole and the second intermediate through hole. The intermediate body 13 is hollow. In order to ensure that the heat inside the intermediate body 13 is quickly dissipated and concentrated, a heat control cover plate 15 is closed above the second intermediate through hole. When the second intermediate through hole is closed, the heat loss is too small. When the heat control cover plate 15 is opened, the heat can flow out quickly from the top.

[0032] Thus, the interior of the constant temperature chamber 1 forms a cavity for placing bowls. Although a structure of constant temperature chamber 1 is proposed in this technical solution, in actual production, the constant temperature chamber 1 can be designed as square, elliptical, or even irregular in shape. Therefore, such designs are simple replacements of this application.

[0033] Meanwhile, the intermediate body 13 can be omitted. Heating components can be installed directly below the base plate 12 or above the upper cover plate 14, or even on the outer periphery of the outer casing 11, as long as the internal air can be heated to hot air. Therefore, removing the intermediate body 13 should be a simple replacement for this technical solution.

[0034] However, in this technical solution, the primary design goal of the intermediate body 13 is to ensure that the temperature is evenly distributed within the heating cavity, guaranteeing the heat preservation effect in each area. Therefore, the terminal of the heating component 4 should be located inside the hollow interior of the intermediate body 13. Consequently, the selection of the heating component 4 can be varied. Figure 3One method employed is heating a resistance wire. For aspects not shown in the attached diagram, the other end of the heating resistance wire is connected to a temperature control device to control the input current and thus adjust the temperature (this technique is common practice for those skilled in the art, such as temperature settings in heaters, electric kettles, and electric water heaters used in winter). In addition to the method shown in the attached diagram, steam heating rods and other related equipment can also be used. Furthermore, when temperature control requirements are not high, placing charcoal can also be used. Therefore, there are various methods of heating, not limited to the resistance wire heating method shown in the attached diagram.

[0035] Secondly, the intermediate body 13 in this application has another function. However, before introducing this other function, it should be noted that in order to make it possible to pick up the bowl, a turntable-type food serving tray component 3 is also provided inside. Similarly, the structure to meet the turntable-type food serving method should also be considered a simple replacement of this technical solution. However, in this application, in order to cooperate with the intermediate body 13, a corresponding structure is designed, which is described in detail below:

[0036] As attached Figure 3 With appendix Figure 4 As shown, a vegetable tray 31 is fitted on the intermediate body 13, and a rotating ring 32 is provided under the vegetable tray 31. Several ball bearings 33 are provided at the bottom of the rotating ring 32, so that the vegetables placed on the vegetable tray 31 can be rotated and picked up. Therefore, another function of the intermediate body 13 is to limit the vegetable tray 31 and prevent it from deviating during rotation.

[0037] Meanwhile, to ensure smooth rotation, three raised retaining rings 34 are provided at the lower end of the rotating ring 32, with the middle one being higher than the two sides, thus achieving double track laying. Ball bearings 33 are provided between two adjacent raised retaining rings 34, making the rotation even smoother. Similarly, if the turntable is larger, more raised retaining rings 34 can be provided to achieve smooth rotation.

[0038] To facilitate closing and retrieving the dishes from the temperature-controlled chamber 1, a dish inlet / outlet 2 is provided on the side of the outer casing 11. Similarly, an opening / closing door 5 is provided at the dish inlet / outlet 2. Although... Figure 1 With appendix Figure 2The specific connection method between the opening and closing door 5 and the outer casing 11 is not explicitly specified, but a hinge connection can be used, in which the opening and closing door 5 rotates and opens and closes via a hinge at one end. Another option is a sliding connection, in which L-shaped symmetrical upper and lower limiting plates are provided on the outer casing 11 to form a slide, allowing the opening and closing door 5 to open and close the bowl inlet and outlet 2 by pushing and pulling left and right. Therefore, the connection method between the opening and closing door 5 and the outer casing 11 is not very important, as long as it can open and close the bowl inlet and outlet 2. Although the above opening and closing schemes are not shown in detail in the attached drawings, they are all conventional techniques for those skilled in the art.

[0039] In this technical solution, the base plate 12 and the outer casing 11 can be processed by integral molding or welding. The intermediate body 13 and the upper cover plate 14 are fixed to the base plate 12 and the outer casing 11 by bolts, which facilitates subsequent maintenance and replacement.

[0040] The usage process of this technical solution is as follows:

[0041] 1. The constant temperature chamber 1 is heated by the heating component 4. The heating temperature is adjusted according to the required heating time and the temperature of the day. However, the temperature should not be too high, otherwise it will affect the taste of the dish.

[0042] 2. Open the opening door 5 and place the bowls into the serving tray 31 through the bowl inlet 2. Rotate the serving tray 31 after each bowl is placed in until all bowls are placed or the tray is full. During the waiting period, close the opening door 5 to prevent cold air from entering.

[0043] 3. After all the dishes are cooked, simply open the door 5 and take out the dishes one by one by rotating the ring 32, thus achieving the effect of keeping the dishes warm in cold air.

[0044] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A thermostatic container for keeping food warm, characterized by: It includes a constant temperature chamber (1), which is provided with a bowl inlet / outlet (2), and a dish turntable assembly (3) for placing bowls is provided inside the constant temperature chamber (1). A heating assembly (4) is also provided on the outside of the constant temperature chamber (1).

2. The constant-temperature warehouse for food temperature preservation according to claim 1, characterized in that: The constant temperature chamber (1) includes an outer shell (11), a bottom plate (12), an intermediate body (13), and an upper cover plate (14). The outer shell (11) is arranged around the outer edge of the bottom plate (12). The bottom plate (12) has a first intermediate through hole in the middle. The intermediate body (13) is arranged on the inner edge of the first intermediate through hole. The intermediate body (13) is hollow. The upper end of the outer shell (11) and the intermediate body (13) is provided with an upper cover plate (14).

3. The constant-temperature warehouse for food temperature preservation according to claim 2, characterized in that: The upper cover plate (14) has a second intermediate through hole in the middle, and a heat control cover plate (15) is covered on the second intermediate through hole.

4. The constant temperature bin for food temperature preservation according to claim 2, characterized in that: The vegetable turntable assembly (3) includes a vegetable plate (31) sleeved on the outer periphery of the intermediate body (13), a rotating ring (32) disposed below the vegetable plate (31), and a plurality of ball bearings (33) located between the lower surface of the rotating ring (32) and the upper surface of the base plate (12).

5. The constant-temperature warehouse for food temperature preservation according to claim 4, characterized in that: The lower end of the rotating ring (32) is provided with a number of raised retaining rings (34), and a ball bearing (33) is provided between two adjacent raised retaining rings (34).

6. The constant temperature bin for food temperature preservation according to claim 2, characterized in that: The heating component (4) is disposed inside the hollow interior of the intermediate body (13).

7. The constant-temperature warehouse for food temperature preservation according to claim 1 or 6, characterized in that: The heating component (4) is any one of heating resistance wire, steam heating rod, or charcoal.

8. The constant temperature bin for food temperature preservation according to claim 2, characterized in that: The bowl inlet (2) is located on the outer casing (11).

9. The constant temperature chamber for keeping food warm according to claim 8, characterized in that: The bowl inlet / outlet (2) is provided with an opening / closing door (5).

10. The constant temperature chamber for keeping food warm according to claim 9, characterized in that: The opening and closing door (5) and the outer casing (11) are connected by a sliding connection or a hinge connection.