A new multi-layer food warmer

Abstract

The utility model relates to food heat preservation technical field discloses a new type multilayer food heat preservation box, including heat preservation box, is provided with heat preservation subassembly on heat preservation box, heat preservation subassembly includes two temperature insulation boards, two temperature insulation boards all are fixedly connected in the inside of heat preservation box, two temperature insulation boards divide the inside of heat preservation box into three independent heat preservation space, the left side of heat preservation box is provided with three sealing plate placing groove, the left side of heat preservation box is provided with three sealing sleeve installation groove, three sealing plate placing groove are located respectively in the inboard of corresponding sealing sleeve installation groove, divide three independent heat preservation space through the setting two temperature insulation boards, cooperate three groups of infrared heating tube and temperature sensor, can realize the differentiation constant temperature heat preservation of different food, through electric telescopic link drive concave placing board and sealing board linkage, combine sealing sleeve and form double seal, both facilitate food to take and put and reduce heat loss, and further improve the practicality and convenience of new type multilayer food heat preservation box.

Description

Technical Field

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

[0002] New multi-layer food insulation equipment is a key tool for storing food in catering, delivery and other scenarios. Its core requirements are: multi-layer independent storage, differentiated constant temperature, convenient access and heat preservation, and the need to accommodate different types of food through a multi-layer structure. At the same time, different foods require different insulation temperatures, and it is necessary to achieve differentiated temperature control in independent spaces.

[0003] However, current multi-layer food insulation equipment in the industry lacks truly independent insulation space. Most multi-layer equipment simply divides the layers with simple partitions that lack insulation. Temperatures between different layers can interfere with each other. For example, the heat from hot food can be transferred to the cooler cooked food layer, causing the hot food to cool down and the cooked food to heat up. This makes it impossible to achieve differentiated insulation and is difficult to adapt to the storage needs of various foods. Furthermore, taking out or putting in food requires opening the entire equipment door or top cover. Even if only one layer of food is taken out, heat will be lost from all layers quickly. Reheating requires more energy and prolongs the insulation recovery time. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel multi-layer food insulation box. It solves the problems of current multi-layer food insulation equipment in the industry, which lack truly independent insulation spaces. Most multi-layer equipment simply uses partitions to divide the layers, and these partitions lack insulation functionality. Temperatures between different layers interfere with each other; for example, heat from hot food can be transferred to the cooler cooked food layer, causing hot food to cool down and cooked food to heat up. This makes it impossible to achieve differentiated insulation, making it difficult to adapt to the storage needs of various foods. Furthermore, removing or placing food requires opening the entire box door or top cover, and even removing just one layer causes rapid heat loss from all layers, requiring more energy to reheat and prolonging the insulation recovery time.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel multi-layer food insulation box, including an insulation box, an insulation component on the insulation box, the insulation component including two insulation plates, both of which are fixedly connected to the inside of the insulation box;

[0008] Two insulation panels divide the interior of the insulated box into three independent insulated spaces.

[0009] The left side of the insulated box has three sealing plate placement slots and three sealing sleeve installation slots, with the three sealing plate placement slots located inside the corresponding sealing sleeve installation slots.

[0010] Each of the three sealing sleeve mounting slots has a sealing sleeve snapped into its inner wall.

[0011] Preferably, a sealing plate is fixedly connected to the left inner wall of each of the three sealing sleeves, and the three sealing plates are respectively snapped into the inner wall of the corresponding sealing plate placement groove.

[0012] Preferably, the inner wall on the right side of each of the three sealing plate placement slots is provided with a rectangular through groove, and the three rectangular through grooves are respectively connected to the corresponding insulation space.

[0013] Preferably, three electric telescopic rod mounting boxes are fixedly connected to the right side of the insulation box, and electric telescopic rods are fixedly installed inside the three electric telescopic rod mounting boxes;

[0014] The telescopic ends of the three electric telescopic poles slide through the right side of their respective electric telescopic pole mounting boxes.

[0015] Preferably, the telescopic ends of the three electric telescopic rods all slide through the interior of the insulation box, and the telescopic ends of the three electric telescopic rods are respectively located inside the corresponding insulation space;

[0016] The telescopic ends of the three electric telescopic rods are all fixedly connected to concave placement plates, which are used to place food.

[0017] Each of the three concave placement plates has a placement plate fixedly installed in its concave part, and the three concave placement plates form a multi-layer structure.

[0018] Preferably, the left ends of the three concave placement plates are respectively fixedly connected to the corresponding sealing plates, and temperature sensors are fixedly installed on the right inner wall of the concave part of each of the three concave placement plates.

[0019] Preferably, the bottom of the insulated box is provided with three sliding grooves, and the inner walls of the three sliding grooves are slidably connected with sliders;

[0020] The upper ends of the three sliders are fixedly connected to the right side of the lower surface of the corresponding concave placement plate.

[0021] Preferably, three sets of infrared heating tubes are fixedly installed on the top inside the insulated box, and the three sets of infrared heating tubes are located in three independent insulated spaces respectively.

[0022] The lower surface of the insulated box is fixedly connected to two T-shaped support legs, and the upper surface of the insulated box is fixedly installed with an operation screen.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, this utility model provides a novel multi-layer food insulation box, which has the following beneficial effects:

[0025] By setting up two insulation plates to separate three independent insulation spaces, and with the help of three sets of infrared heating tubes and temperature sensors, it can achieve differentiated constant temperature insulation for different foods. The electric telescopic rod drives the concave placement plate and the sealing plate to work together, forming a double seal with the sealing sleeve. This not only facilitates the handling of food but also reduces heat loss, thereby improving the practicality and convenience of the new multi-layer food insulation box. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a novel multi-layer food insulation box according to this utility model;

[0027] Figure 2 This is a schematic diagram of the interior of the insulated box of this utility model;

[0028] Figure 3 This is a schematic diagram of the infrared heating tube of this utility model;

[0029] Figure 4 This is a schematic diagram of the slide groove of this utility model;

[0030] Figure 5 This is a schematic diagram of the multi-layer concave placement plate of this utility model.

[0031] In the diagram: 1. Insulation box; 2. Operation screen; 3. T-shaped support leg; 4. Sealing sleeve; 5. Insulation plate; 6. Concave placement plate; 7. Electric telescopic rod mounting box; 8. Temperature sensor; 9. Sealing plate placement groove; 10. Rectangular through groove; 11. Infrared heating tube; 12. Sealing sleeve mounting groove; 13. Slider; 14. Slide groove; 15. Sealing plate. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-5This utility model provides a new technical solution: a novel multi-layer food insulation box, including an insulation box 1. The insulation box 1 is the core load-bearing and protective body of the novel multi-layer food insulation box. The insulation box 1 is equipped with insulation components. The interior of the insulation box 1 is fixedly connected to two insulation plates 5 and three sets of infrared heating tubes 11. The left side of the insulation box 1 has three sealing plate placement slots 9 and three sealing sleeve installation slots 12. The right side of the insulation box 1 is fixedly connected to three electric telescopic rod installation boxes 7. The lower surface of the insulation box 1 is fixedly connected to two T-shaped support legs 3. The upper surface of the insulation box 1 is fixedly installed with an operation screen 2. The bottom of the interior of the insulation box 1 has three sliding grooves 14. The insulation box 1 provides an installation benchmark for all insulation components. The insulation plates 5 separate independent insulation spaces, supporting the heating, sealing, and conveying components required for food insulation. At the same time, the operation screen 2 realizes equipment control, ensuring differentiated insulation of multi-layer food.

[0034] Insulation plate 5: Both insulation plates 5 are fixedly connected to the inside of the insulation box 1. The two insulation plates 5 are arranged in parallel, one above the other. The insulation plates 5 are used to divide the inside of the insulation box 1 into three independent insulation spaces to prevent foods with different temperature requirements, such as hot food at high temperature and cooked food at low temperature, from crossing temperatures, ensuring that the temperature of each space is stable and improving the specificity of insulation.

[0035] Sealing plate placement groove 9: The inner walls of the three sealing plate placement grooves 9 are all fitted with sealing plates 15. The sealing plate placement grooves 9 provide a space for the sealing plates 15 to be fitted and accommodated, ensuring that the sealing plates 15 can be accurately embedded and form a double seal with the sealing sleeve 4. At the same time, the rectangular through groove 10 on the right side provides a channel for the extension of the concave placement plate 6.

[0036] Sealing sleeve mounting groove 12: Sealing sleeve mounting groove 12 provides a snap-fit ​​fixing space for sealing sleeve 4, ensuring that sealing sleeve 4 can stably fit against the inner wall of the left side of the insulation box 1, providing auxiliary sealing for sealing plate 15, and reducing heat loss from the insulation space.

[0037] Sealing sleeve 4: The sealing sleeve 4 is made of elastic material and is snapped into the sealing sleeve mounting groove 12. It fits tightly with the sealing plate 15, fills the gap between the sealing plate 15 and the sealing plate placement groove 9, and forms a second seal to further block the heat exchange between the insulation space and the outside.

[0038] Sealing plate 15: Sealing plate 15 is the first sealing component. It is inserted into the sealing plate placement groove 9 to block the direct connection between the heat preservation space and the outside world. At the same time, it is fixed to the concave placement plate 6. It moves with the placement plate to realize the sealing-opening linkage, ensuring that only part of the opening is made when food is taken out or put in, reducing heat loss.

[0039] Rectangular through groove 10: The rectangular through groove 10 provides a channel for the concave placement plate 6 to extend / retract, ensuring that the placement plate can move between the insulation space and the outside through the through groove, while working with the sealing plate 15 to maintain the sealing of the channel.

[0040] Electric telescopic pole mounting box 7: Electric telescopic poles are fixedly installed inside the three electric telescopic pole mounting boxes 7. The electric telescopic pole mounting box 7 provides a closed protective space for the electric telescopic poles, isolating them from external dust and moisture, preventing damage to the telescopic poles, and ensuring a stable connection between the telescopic poles and the insulation box 1.

[0041] Electric telescopic rods: The telescopic ends of the three electric telescopic rods are fixedly connected to the right end of the corresponding concave placement plate 6. The electric telescopic rods are the power source for the movement of the concave placement plate 6. Through the contraction and extension of the telescopic ends, the placement plate moves left and right along the slide 14, realizing the taking and putting away of food without opening the entire insulated box, thus reducing heat loss.

[0042] Concave placement plate 6: The concave placement plate 6 is the direct support component for food. The concave structure can prevent food from slipping. Multiple placement plates can be added to realize the layered placement of food. At the same time, it drives the sealing plate 15 to move synchronously to ensure the linkage between sealing and movement. The temperature sensor 8 monitors the temperature of the space in real time.

[0043] Temperature sensor 8: Temperature sensor 8 is used to detect the temperature of the corresponding heat preservation space in real time and feed the temperature data back to the operation screen 2. When the temperature reaches the preset value, the infrared heating tube 11 is triggered to stop heating. When the temperature is lower than the preset lower limit, heating is triggered to achieve constant temperature control.

[0044] Infrared heating tube 11: The infrared heating tube 11 is used to provide heat to the corresponding heat preservation space. It automatically starts and stops according to the feedback of the temperature sensor 8 to maintain the temperature stability in the space and meet the differentiated heat preservation needs of different foods.

[0045] Slide 14: Slide 14 provides a sliding guide trajectory for slider 13, restricting slider 13 to move only in the left and right directions, ensuring that the concave placement plate 6 moves smoothly without deviation or tilting when moving with the electric telescopic rod.

[0046] Slider 13: Slider 13 connects the concave placement plate 6 and the slide groove 14, restricting the movement of the placement plate within the slide groove trajectory, reducing the frictional resistance when the placement plate moves, and ensuring smooth and stable movement.

[0047] T-shaped support legs 3: Both T-shaped support legs 3 are fixedly connected to the lower surface of the insulated box 1. The two T-shaped support legs 3 are arranged symmetrically on the left and right. The T-shaped support legs 3 are used to support the insulated box 1 above the ground, preventing the box from directly contacting the ground, and at the same time enhancing the stability of the box and preventing it from tipping over.

[0048] Operation screen 2: Operation screen 2 is the control and display terminal of the equipment. It can start / stop the equipment, set the target temperature of each insulation space, and display real-time temperature data, so as to realize the intelligent operation of the equipment.

[0049] Furthermore, when using this new multi-layer food insulation box, first start the device through the operation screen 2 on the upper surface of the insulation box 1, and select the electric telescopic rod control function of the corresponding insulation space according to the type and quantity of food to be insulated.

[0050] The electric telescopic rods inside the three electric telescopic rod mounting boxes 7 are activated, causing their telescopic ends to extend to the left. The telescopic ends of the electric telescopic rods drive the concave placement plate 6 to move to the left in sync. Since the left end of the concave placement plate 6 is fixedly connected to the sealing plate 15, the sealing plate 15 will detach from the sealing plate placement groove 9 along with the concave placement plate 6. At the same time, the slider 13 on the right side of the lower surface of the concave placement plate 6 will slide synchronously along the sliding groove 14 at the bottom of the heat preservation box 1, ensuring that the concave placement plate 6 moves smoothly without deviation, until most of the structure of the concave placement plate 6 extends out of the heat preservation space through the rectangular through groove 10. Then the electric telescopic rods are closed. At this time, the food to be kept warm can be placed in the concave part of the concave placement plate 6. If there is a lot of food, multiple placement plates can be fixedly installed in the concave part to achieve layered placement of food using the multi-layer concave structure, avoiding stacking and squeezing.

[0051] After the food is placed, the electric telescopic rod is extended by controlling the operation screen 2. Its telescopic end drives the concave placement plate 6 to move to the right and gradually return to the interior of the heat preservation space. At the same time, the sealing plate 15 will re-clamp into the inner wall of the sealing plate placement groove 9, and the sealing sleeve 4 in the sealing sleeve installation groove 12 will fit tightly with the sealing plate 15 to form a double sealing structure. The sealing plate 15 blocks the direct connection between the heat preservation space and the outside world, and the sealing sleeve 4 further fills the gap between the sealing plate and the placement groove, effectively reducing the heat loss in the heat preservation space and laying a good sealing foundation for subsequent heat preservation. When the concave placement plate 6 has completely returned to the preset position of the heat preservation space, the electric telescopic rod is turned off.

[0052] According to the heat preservation requirements of food in different heat preservation spaces, the target temperature of the three sets of infrared heating tubes 11 can be set through the operation screen 2. For example, the heat preservation of hot food is set to 60-65℃ and the heat preservation of cooked food is set to 40-45℃. The infrared heating tubes 11 are activated, and the three sets of infrared heating tubes 11 heat the three independent heat preservation spaces respectively. The temperature sensor 8 on the inner wall of the right side of the concave part of the concave placement plate 6 will detect the temperature of the heat preservation space in real time and feed the data back to the operation screen 2. When the temperature reaches the preset value, the infrared heating tubes 11 automatically stop heating. When the temperature is lower than the preset lower limit, such as a fluctuation of ±3℃, the infrared heating tubes 11 are activated again to achieve constant temperature control of each heat preservation space and meet the differentiated heat preservation requirements of different foods.

[0053] During the heat preservation process, the two insulation plates 5 divide the interior of the heat preservation box 1 into three independent heat preservation spaces, which can prevent foods with different temperature requirements from affecting each other. For example, hot food at high temperature and cooked food at low temperature will not cross temperature, thus improving the specificity of heat preservation. The two T-shaped support legs 3 on the lower surface of the heat preservation box 1 can keep the box stable and prevent the ground from being wet or impurities from affecting the use of the equipment. If food needs to be taken out, repeat the above steps of retracting the electric telescopic rod and extend the concave placement plate 6. There is no need to open the entire heat preservation box, which further reduces heat loss.

[0054] After the heat preservation is completed, the infrared heating tube 11 and the main power supply of the equipment are turned off through the operation screen 2. If heat preservation is still required in the short term, the equipment can be kept in standby mode. When cleaning, the concave placement plate 6 can be extended again to wipe its surface. The sealing plate 15 and the sealing sleeve 4 can also be disassembled and cleaned regularly to ensure the hygiene of the food contact parts.

[0055] The system features three independent insulation spaces separated by two insulation plates 5. Combined with three sets of infrared heating tubes 11 and temperature sensors 8, it can achieve differentiated constant temperature insulation for different foods. The electric telescopic rod drives the concave placement plate 6 and the sealing plate 15 to work together with the sealing sleeve 4 to form a double seal, which facilitates the handling of food and reduces heat loss, thereby improving the practicality and convenience of the new multi-layer food insulation box.

[0056] Example 1: Replacement of the original sealing sleeve with a wear-resistant self-lubricating sealing sleeve 4

[0057] A fast food delivery center handles food 15-20 times per hour. The original sealing sleeve 4 was prone to wear due to frequent friction. The problems exposed when using the original sealing sleeve were: first, the sealing sleeve and sealing plate 15 rubbed repeatedly, and the surface became rough after one month, the sealing gap increased, and the heat loss rate of the heat preservation space increased by 15%; second, the frictional resistance increased, and the electric telescopic rod jammed when moving the sealing plate, requiring frequent maintenance; third, wear debris easily fell into the heat preservation space and contaminated the food. At this time, the original sealing sleeve 4 was replaced with a wear-resistant self-lubricating sealing sleeve, retaining the snap-fit ​​with the sealing sleeve installation groove 12. It is made of polytetrafluoroethylene + graphite composite material, with a spiral lubrication groove on the inner surface, an integrally formed elastic lip edge, and the thickness increased to 1.2 times that of the original.

[0058] Polytetrafluoroethylene has excellent wear resistance, graphite enhances its self-lubricating properties, the sealing sleeve surface is free from burrs and wear, thus extending its service life and making it suitable for high-frequency pick-and-place delivery scenarios, reducing the frequency of replacement.

[0059] The lip fits tightly against the sealing plate, preventing wear and tear and debris from falling off. Food within the insulated space is free from contamination risks, making it suitable for food contact scenarios and meeting hygiene standards.

[0060] Example 2: Replacing the original sealing sleeve with a low-temperature elastic sealing sleeve 4

[0061] A fresh food supermarket needs to keep both hot food warm and refrigerated cooked food cold. The temperature of the refrigeration compartment is 0-5℃. The original sealing sleeve 4 hardens at low temperatures, which causes the following problems: First, the low temperature causes the sealing sleeve to lose its elasticity, increasing the gap between the sealing plate and the sleeve body, resulting in rapid loss of cold air from the refrigeration compartment and frequent compressor start-stop. Second, after hardening, the sealing sleeve makes hard contact with the sealing plate, producing abnormal noise when taking it out and putting it in, and easily damaging the edge of the sealing plate. Third, the sealing sleeve is prone to cracking at low temperatures, and the seal fails, requiring emergency replacement. At this time, the original sealing sleeve 4 is replaced with a low-temperature elastic sealing sleeve, made of low-temperature resistant silicone rubber, with an internal metal spring skeleton, multiple sealing ribs added to the surface, and the sleeve body is made thinner.

[0062] The frame support sleeve avoids hard impacts, there is no friction noise when picking up and putting down, the edge of the sealing plate is undamaged, it is suitable for alternating hot and cold use, and extends the life of the components.

[0063] The thin sleeve has strong deformation capacity at low temperatures, with no cracking, and the sealing effect remains stable. It is suitable for long-term low-temperature operation scenarios and reduces emergency maintenance downtime.

[0064] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel multi-layer food insulated box, comprising an insulated box (1), characterized in that: The insulation box (1) is provided with an insulation component, which includes two insulation plates (5), both of which are fixedly connected to the inside of the insulation box (1); Among them, two insulation boards (5) divide the interior of the insulation box (1) into three independent insulation spaces; Among them, the left side of the heat preservation box (1) has three sealing plate placement slots (9) and the left side of the heat preservation box (1) has three sealing sleeve installation slots (12). The three sealing plate placement slots (9) are located on the inner side of the corresponding sealing sleeve installation slots (12). Among them, the inner walls of the three sealing sleeve mounting grooves (12) are all fitted with sealing sleeves (4).

2. The novel multi-layer food insulation box according to claim 1, characterized in that: Each of the three sealing sleeves (4) has a sealing plate (15) fixedly connected to its left inner wall, and the three sealing plates (15) are respectively snapped into the inner wall of the corresponding sealing plate placement groove (9).

3. The novel multi-layer food insulation box according to claim 2, characterized in that: The inner wall on the right side of each of the three sealing plate placement slots (9) is provided with a rectangular through slot (10), and the three rectangular through slots (10) are respectively connected to the corresponding heat preservation space.

4. The novel multi-layer food insulation box according to claim 1, characterized in that: Three electric telescopic rod mounting boxes (7) are fixedly connected to the right side of the heat preservation box (1), and electric telescopic rods are fixedly installed inside the three electric telescopic rod mounting boxes (7); Among them, the telescopic ends of the three electric telescopic poles slide through the right side of the corresponding electric telescopic pole mounting box (7).

5. A novel multi-layer food insulation box according to claim 4, characterized in that: The telescopic ends of the three electric telescopic rods slide through the interior of the insulation box (1), and the telescopic ends of the three electric telescopic rods are respectively located inside the corresponding insulation space; Among them, the telescopic ends of the three electric telescopic rods are all fixedly connected to concave placement plates (6), and the three concave placement plates (6) are used to place food. Among them, the concave parts of the three concave placement plates (6) are all fixedly installed with placement plates, and the three concave placement plates (6) form a multi-layer structure.

6. A novel multi-layer food insulation box according to claim 5, characterized in that: The left ends of the three concave placement plates (6) are respectively fixedly connected to the corresponding sealing plates (15), and temperature sensors (8) are fixedly installed on the right inner wall of the concave part of the three concave placement plates (6).

7. A novel multi-layer food insulation box according to claim 1, characterized in that: The bottom of the insulated box (1) is provided with three sliding grooves (14), and the inner walls of the three sliding grooves (14) are slidably connected with sliders (13); The upper ends of the three sliders (13) are fixedly connected to the right side of the lower surface of the corresponding concave placement plate (6).

8. A novel multi-layer food insulation box according to claim 1, characterized in that: Three sets of infrared heating tubes (11) are fixedly installed on the top inside the heat preservation box (1), and the three sets of infrared heating tubes (11) are located in three independent heat preservation spaces respectively. Among them, two T-shaped support legs (3) are fixedly connected to the lower surface of the insulated box (1), and an operation screen (2) is fixedly installed on the upper surface of the insulated box (1).

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