A multi-tier food warming cabinet

Abstract

The utility model relates to the technical field of heat preservation cabinet, and disclose a kind of multi-layer food heat preservation cabinet, the multi-layer food heat preservation cabinet, including rack, the rack top is fixedly installed with shell, the rack bottom is provided with foot brace, the shell inside below is equipped with lower inner container, the shell inside top is equipped with upper inner container.This multi-layer food heat preservation cabinet, in order to better the heat preservation of different degrees to a variety of food, by being provided with heat preservation assembly, cooperate with the storage plate, through groove, storage box and cylinder, so that better place food, while avoiding the influence of hot air flow circulation, cooperate with arc groove and auxiliary hole, so that hot air flow better circulation to storage box, cooperate with filter plate can heat the rectangular box bottom end, cooperate with air pump, air inlet pipe, valve, air outlet pipe and filter can better utilize the hot gas generated by heater, divide into different heat area in shell interior, satisfy different heat preservation demand, cooperate with filter can prevent food smell.

Description

Technical Field

[0001] This utility model relates to the field of warming cabinet technology, specifically a multi-layer food warming cabinet. Background Technology

[0002] In the modern catering industry and in some special scenarios (such as large conferences, hotel buffets, etc.), maintaining the appropriate temperature of food is crucial to ensuring the taste, quality and safety of food. Traditional food heat preservation methods, such as using hot water baths and open flame heating, have many limitations and cannot meet the long-term and diverse food heat preservation needs.

[0003] Multi-layer food warmers have emerged as a result, but the current structure of warmers is relatively simple and cannot better keep various foods warm to different degrees, nor can it make full use of the heat generated by the heater to divide the interior of the cabinet into different temperature zones for the preservation of diverse foods and to prevent food from absorbing each other's odors.

[0004] In view of this, we propose a multi-layer food warmer. Utility Model Content

[0005] The purpose of this invention is to provide a multi-layer food warming cabinet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-layer food warming cabinet includes a frame, an outer shell fixedly mounted on the top of the frame, and feet provided at the bottom of the frame. A lower inner liner is fitted inside the lower part of the outer shell, and an upper inner liner is fitted inside the upper part of the outer shell. Cabinet doors are slidably mounted on the front ends of both the lower and upper inner liners. A heater is fixedly mounted on the inner side of the top of the upper inner liner. A heat preservation component is provided on the outer side of the frame, and the heat preservation component includes:

[0008] The lower inner liner has a storage board fixedly installed inside, a through groove on the storage board, a storage box placed inside the storage board, a cylinder fixedly installed inside the center of the storage box, and an arc-shaped groove and auxiliary holes on the rear side wall of the lower inner liner.

[0009] A filter plate is fixedly installed on the inner side of the outer shell. The top of the filter plate is attached to the bottom of the upper inner liner. A rectangular box is placed on the inner side of the bottom end of the upper inner liner. A partition is snapped into the inner side of the rectangular box. A limit rod is fixedly installed on the top of the filter plate. A limit block is rotatably installed on the outer side of the top of the limit rod.

[0010] An air pump is fixedly installed on the top of the outer casing. The air pump's inlet end is fixedly connected to one end of an air inlet pipe, and a valve is provided on the air inlet pipe. The other end of the air inlet pipe passes through the top of the upper inner liner. The air pump's outlet end is fixedly connected to one end of an outlet pipe, and a filter is provided on the other end of the outlet pipe. The filter's output end passes through the bottom of the outer casing.

[0011] Preferably, a conical shroud is fixedly installed at the end of the air intake pipe away from the air pump, and a filter screen is snapped into the bottom of the conical shroud. The conical shroud and the filter screen work together to better transport the hot air in the upper inner liner to the lower inner liner.

[0012] Preferably, multiple sets of the storage board, through slot, storage box, and cylinder are provided to better store various foods.

[0013] Preferably, multiple sets of the limiting rod and limiting block are provided, and the lower surface of the top of the limiting block is attached to the top of the rectangular box, which, together with the limiting rod and limiting block, makes the rectangular box more stable.

[0014] Preferably, an auxiliary component is provided at the top of the frame, the auxiliary component includes a bracket, a servo motor is fixedly installed at the center of the bottom of the outer shell, a rotating shaft is fixedly installed at the top output end of the servo motor, the rotating shaft is fixedly installed on the inner side of the bearing, the outer side of the bearing is fixedly installed on the inner side of the center of the bottom end of the outer shell, a turbine is fixedly installed on the outer side of the top of the rotating shaft, a base plate is fixedly installed on the inner side of the bottom end of the lower inner liner, a through bottom hole is opened on the base plate, and the turbine is located below the base plate.

[0015] Preferably, a V-shaped plate is fixedly installed at the front end of the base plate, and a through side hole is opened on the V-shaped plate. Ultraviolet lamps are fixedly installed at the bottom of the filter plate and the inner wall of the rear end of the upper inner liner, so as to better perform sterilization and disinfection in conjunction with the ultraviolet lamps.

[0016] Compared with the prior art, this utility model provides a multi-layer food warming cabinet with the following beneficial effects:

[0017] 1. This multi-layer food warmer is designed to better keep various foods warm at different levels. It incorporates a warming component, along with a shelf, slots, storage boxes, and a cylinder. This allows for better food placement while avoiding obstruction of hot airflow. Arc-shaped slots and auxiliary holes ensure better hot airflow to the storage boxes. A filter plate heats the bottom of the rectangular boxes, and partitions divide the interior into different food zones. Limiting rods and blocks ensure stability. An air pump, inlet pipe, valves, outlet pipe, and filter effectively utilize the heat generated by the heater to divide the interior into different heat zones, meeting varying warming needs. A conical hood and filter effectively transfer hot air from the upper inner liner to the lower inner liner, and the filter prevents food from absorbing odors.

[0018] 2. To improve the heat preservation effect, this multi-layer food warming cabinet is equipped with auxiliary components. When the servo motor on the bracket is activated, it works with the bearing to rotate the shaft, which in turn rotates the turbine. This allows the hot air delivered by the air pump to be better blown into the interior of the outer shell. Combined with the bottom plate, bottom holes, V-shaped plate, and side holes, the hot airflow moves better around the storage box, thus better keeping the food inside warm. In addition, the ultraviolet lamp can better sterilize and disinfect the food. Attached Figure Description

[0019] Figure 1 This is a top view of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view of part of the structure of this utility model;

[0021] Figure 3 This is a top view of part of the structure of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram of region A in the middle;

[0023] Figure 5 This utility model Figure 3 Enlarged structural diagram of region B in the middle;

[0024] Figure 6 This is a cross-sectional view of part of the structure of this utility model;

[0025] Figure 7 This is a cross-sectional view of part of the structure of this utility model;

[0026] Figure 8 This is a top view of a partial structural cross-section of the present invention;

[0027] Figure 9 This utility model Figure 8 Enlarged structural diagram of region C in the middle;

[0028] Figure 10 This is a schematic diagram of the lower inner liner and some structural connections of this utility model;

[0029] Figure 11 This is a top view of the base plate of this utility model.

[0030] In the diagram: 1. Frame; 2. Outer shell; 3. Foot support; 4. Lower inner liner; 5. Upper inner liner; 6. Cabinet door; 7. Heater; 8. Insulation component; 81. Shelf; 82. Through groove; 83. Shelf box; 84. Cylinder; 85. Arc groove; 86. Auxiliary hole; 87. Filter plate; 88. Rectangular box; 89. Partition; 810. Limiting rod; 811. Limiting block; 812. Air pump; 813. Air inlet pipe; 814. Valve; 815. Air outlet pipe; 816. Filter; 817. Conical cover; 818. Filter screen; 9. Auxiliary component; 91. Bracket; 92. Servo motor; 93. Shaft; 94. Bearing; 95. Turbine; 96. Base plate; 97. Bottom hole; 98. V-shaped plate; 99. Side hole; 910. Ultraviolet lamp. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 - Figure 11 This utility model provides a technical solution:

[0033] A multi-layer food warmer includes a frame 1, an outer shell 2 fixedly installed at the top of the frame 1, and four sets of feet 3 at the bottom of the frame 1. A lower inner liner 4 is fitted inside the lower part of the outer shell 2, and an upper inner liner 5 is fitted inside the upper part of the outer shell 2. Cabinet doors 6 are slidably installed at the front ends of both the lower inner liner 4 and the upper inner liner 5. A heater 7 is fixedly installed on the inner side of the top of the upper inner liner 5 (the heater 7 uses an electric heating wire as a heat source, and generates heat by passing current through a resistor, converting electrical energy into heat energy).

[0034] In one embodiment of this utility model, a heat preservation component 8 is provided on the outer side of the frame 1. The heat preservation component 8 includes a storage plate 81. The storage plate 81 is fixedly installed inside the lower inner liner 4. A through groove 82 is opened on the storage plate 81. A storage box 83 is placed inside the storage plate 81. A cylinder 84 is fixedly installed on the inner side of the center of the storage box 83. In addition, multiple sets of storage plates 81, through grooves 82, storage boxes 83 and cylinders 84 are provided to better store various foods. A through arc-shaped groove 85 and an auxiliary hole 86 are opened on the rear side wall of the lower inner liner 4. A filter plate 87 is fixedly installed inside the outer shell 2. The top of the filter plate 87 is attached to the bottom of the upper inner liner 5. A rectangular box 88 is placed inside the bottom end of the upper inner liner 5. A partition 89 is snapped into the inner side of the rectangular box 88. A limit rod 810 is fixedly installed on the top of the filter plate 87. A limit block 811 is rotatably installed on the outer side of the top of the limit rod 810. In addition, multiple sets of limiting rods 810 and limiting blocks 811 are provided. The lower surface of the top of the limiting block 811 is attached to the top of the rectangular box 88. The combination of the limiting rods 810 and limiting blocks 811 makes the rectangular box 88 more stable. An air pump 812 is fixedly installed on the top of the outer shell 2. The air inlet end of the air pump 812 is fixedly connected to one end of the air inlet pipe 813. A valve 814 is provided on the air inlet pipe 813. The other end of the air inlet pipe 813 passes through the top of the upper inner liner 5. The air outlet end of the air pump 812 is fixedly connected to one end of the air outlet pipe 815. A filter 816 is provided on the other end of the air outlet pipe 815. The output end of the filter 816 passes through the bottom of the outer shell 2. In addition, a conical cover 817 is fixedly installed on the end of the air inlet pipe 813 away from the air pump 812. A filter screen 818 is snapped into the bottom of the conical cover 817. The combination of the conical cover 817 and the filter screen 818 can better transport the hot air in the upper inner liner 5 to the lower inner liner 4.

[0035] In this embodiment, the heat preservation cabinet body is first connected to 220V mains power and turned on by the controller. The heater 7 starts working, generating hot air to provide heat for the entire heat preservation cabinet. When the air pump 812 starts, it draws the hot air generated by the heater 7 from the upper inner liner 5 through the air inlet pipe 813. The valve 814 controls the gas flow and on / off function. The operator controls the amount of hot air entering the air pump 812 by adjusting the valve 814 according to the actual heat preservation needs. The conical shroud 817 can gather and guide the hot air, making it more concentrated. The hot air is efficiently transported from the air inlet pipe 813 to the lower inner liner 4 via the conical shroud 817 and filter 818. Simultaneously, the air pump 812 extracts the hot air and outputs it through the air outlet pipe 815. The filter 816 on the air outlet pipe 815 filters the hot air (the filter 816 contains activated carbon) to prevent odors from mixing between different foods in the lower inner liner 4 and the upper inner liner 5. Through the adjustment of the valve 814 and the operation of the air pump 812, the interior of the outer shell 2 is divided into different heat zones to meet the different heat requirements of different foods. To meet temperature requirements (where the internal temperature of the upper inner liner 5 is higher than that of the lower inner liner 4), a shelf 81 is used to place a storage box 83. A through slot 82 is provided on the shelf 81. A cylinder 84 is fixedly installed on the inner center of the storage box 83. These structural designs allow for proper food placement while avoiding obstruction of hot airflow. Furthermore, a through arc-shaped slot 85 and auxiliary holes 86 are provided on the rear side wall of the lower inner liner 4. Their function is to guide the hot airflow, allowing it to better circulate to the storage box 83. To ensure even heating of food, the partition 89 divides the interior of the rectangular box 88 into different food zones, facilitating the categorization and placement of different foods and preventing them from affecting each other. The top of the filter plate 87 is attached to the bottom of the upper inner liner 5, and its function is to allow the upward airflow inside the lower inner liner 4 to heat the bottom of the rectangular box 88, ensuring the heat preservation effect of the food inside the rectangular box 88. The lower surface of the top of the limiting block 811 is attached to the top of the rectangular box 88. Through this structural cooperation, the rectangular box 88 is more stable during placement and use, and is not easy to shake or shift.

[0036] In one embodiment of this utility model, an auxiliary component 9 is provided at the top of the frame 1. The auxiliary component 9 includes a bracket 91. A servo motor 92 is fixedly installed at the bottom center of the outer shell 2. A rotating shaft 93 is fixedly installed at the top output end of the servo motor 92. The rotating shaft 93 is fixedly installed inside the bearing 94. The outer side of the bearing 94 is fixedly installed inside the bottom center of the outer shell 2. A turbine 95 is fixedly installed on the outer side of the top of the rotating shaft 93. A bottom plate 96 is fixedly installed on the bottom inner side of the lower inner liner 4. A through bottom hole 97 is opened on the bottom plate 96. The turbine 95 is located below the bottom plate 96. In addition, a V-shaped plate 98 is fixedly installed at the front end of the bottom plate 96. A through side hole 99 is opened on the V-shaped plate 98. Ultraviolet lamps 910 are fixedly installed at the bottom of the filter plate 87 and the inner wall of the rear end of the upper inner liner 5. The ultraviolet lamps 910 work together to better sterilize and disinfect.

[0037] In this embodiment, when the servo motor 92 on the start bracket 91 is activated, the rotating shaft 93 rotates under the support of the bearing 94, and the turbine 95 rotates along with the rotating shaft 93. The rotation of the turbine 95 further accelerates the hot air delivered by the air pump 812 and blows it better into all directions inside the outer shell 2, making the hot air more evenly distributed inside the outer shell 2. After being accelerated by the turbine 95, part of the hot air flows upward through the bottom hole 97. During the upward process, the hot air is guided by the V-shaped plate 98 and diverted by the side hole 99, moving better around the storage box 83, thereby more comprehensively and evenly keeping the food inside the storage box 83 warm and improving the heat preservation effect. During the operation of the warming cabinet, the ultraviolet lamp 910 is turned on at the same time. The ultraviolet lamp 910 destroys the DNA or RNA structure of bacteria, viruses and other microorganisms by emitting ultraviolet rays, causing them to lose their ability to reproduce and survive, thereby achieving the purpose of sterilization and disinfection, and ensuring the hygiene and safety of the food inside the warming cabinet.

[0038] All electrical components mentioned in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the heater 7, air pump 812, servo motor 92, and ultraviolet lamp 910. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-layer food warming cabinet, comprising a frame (1), wherein a shell (2) is fixedly installed at the top of the frame (1), and a foot support (3) is provided at the bottom of the frame (1), characterized in that: A lower inner liner (4) is fitted inside the lower part of the outer shell (2), and an upper inner liner (5) is fitted inside the upper part of the outer shell (2). Cabinet doors (6) are slidably installed at the front ends of both the lower inner liner (4) and the upper inner liner (5). A heater (7) is fixedly installed on the inner side of the top of the upper inner liner (5). A heat insulation component (8) is provided on the outer side of the frame (1). The heat insulation component (8) includes: The lower inner liner (4) is fixedly installed with a shelf (81). A through groove (82) is opened on the shelf (81). A storage box (83) is placed inside the shelf (81). A cylinder (84) is fixedly installed on the inner side of the center of the storage box (83). A through arc groove (85) and an auxiliary hole (86) are opened on the rear side wall of the lower inner liner (4). A filter plate (87) is fixedly installed inside the outer shell (2). The top of the filter plate (87) is attached to the bottom of the upper inner liner (5). A rectangular box (88) is placed inside the bottom of the upper inner liner (5). A partition plate (89) is snapped into the inside of the rectangular box (88). A limit rod (810) is fixedly installed on the top of the filter plate (87). A limit block (811) is rotatably installed on the outer side of the top of the limit rod (810). An air pump (812) is fixedly installed on the top of the outer shell (2). The air pump (812) is fixedly connected to one end of an air inlet pipe (813). A valve (814) is provided on the air inlet pipe (813). The other end of the air inlet pipe (813) passes through the top of the upper inner liner (5). The air pump (812) is fixedly connected to one end of an air outlet pipe (815). A filter (816) is provided on the other end of the air outlet pipe (815), and the output end of the filter (816) passes through the bottom of the outer shell (2).

2. The multi-layer food warming cabinet according to claim 1, characterized in that: A conical shroud (817) is fixedly installed at the end of the air intake pipe (813) away from the air pump (812), and a filter screen (818) is snapped into the bottom end of the conical shroud (817).

3. A multi-layer food warming cabinet according to claim 1, characterized in that: The storage board (81), through groove (82), storage box (83) and cylinder (84) are provided in multiple sets.

4. A multi-layer food warming cabinet according to claim 1, characterized in that: Multiple sets of the limiting rod (810) and the limiting block (811) are provided, and the lower surface of the top end of the limiting block (811) is attached to the top of the rectangular box (88).

5. A multi-layer food warming cabinet according to claim 1, characterized in that: An auxiliary component (9) is provided at the top of the frame (1). The auxiliary component (9) includes a bracket (91). A servo motor (92) is fixedly installed at the bottom center of the outer shell (2). A rotating shaft (93) is fixedly installed at the top output end of the servo motor (92). The rotating shaft (93) is fixedly installed inside the bearing (94). The outer side of the bearing (94) is fixedly installed inside the bottom center of the outer shell (2). A turbine (95) is fixedly installed on the outer side of the top of the rotating shaft (93). A base plate (96) is fixedly installed inside the bottom of the lower inner liner (4). A through bottom hole (97) is opened on the base plate (96). The turbine (95) is located below the base plate (96).

6. A multi-layer food warming cabinet according to claim 5, characterized in that: A V-shaped plate (98) is fixedly installed at the front end of the base plate (96). A through side hole (99) is provided on the V-shaped plate (98). Ultraviolet lamps (910) are fixedly installed at the bottom of the filter plate (87) and on the inner wall of the rear end of the upper inner liner (5).

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