Intelligent layered heat preservation device for food serving vehicle

Abstract

The utility model belongs to the field of catering equipment, especially relates to a layered heat preservation device for intelligent food serving trolley, including movable frame, shock absorber wheel, push rod, heat preservation box, apron, louver, hot air machine and cold air machine etc., a plurality of shock absorber wheels are rotationally arranged in the lower part of movable frame and are distributed in two rows and two columns, the heat preservation box is installed on the upper part of movable frame, the push rod is fixedly connected on one side of movable frame, two aprons are rotationally arranged on one side of heat preservation box along a plumb line and close the heat preservation box from the left direction, the hot air machine is installed on one side of the upper part of heat preservation box, the cold air machine is installed on one side of the lower part of heat preservation box, and one louver is installed on one side of the hot air machine and the cold air machine respectively. The sealing assembly formed by setting the guide rod, baffle, compression spring and pulley part can automatically adjust the baffle position when taking meal, temporarily close the air duct, effectively reduce the leakage of hot air or cold air, reduce energy loss, and improve energy utilization efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of catering equipment, and in particular relates to a layered insulation device for intelligent food preparation vehicles. Background Technology

[0002] A food delivery truck is a mobile vehicle specifically designed for food delivery. It is typically equipped with storage, insulation, heating, or cooling systems, providing convenient and efficient food delivery services for catering businesses, group dining units, or event venues.

[0003] However, in actual use, when staff need to retrieve food from a typical catering cart, they usually have to pull out the heating or cooling layer. During this process, the hot or cold air inside the insulated box will quickly dissipate through the air ducts of the heating or cooling layer, making it difficult to maintain a stable temperature inside the insulated box. In order to maintain the set temperature inside the heating or cooling layer, the cooling or heating system needs to work continuously to replenish the lost heat or cold, which undoubtedly greatly increases energy consumption, raises operating costs, and is not conducive to energy conservation, consumption reduction, and economic operation.

[0004] Therefore, there is a particular need for a layered insulation device for intelligent food delivery vehicles to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of ordinary catering vehicles where hot or cold air in the insulated box is easily lost through the air duct during food collection, causing the refrigeration or heating system to work continuously to replenish heat or cold, thus increasing energy consumption and operating costs, which is not conducive to energy conservation, consumption reduction and economic operation, this utility model provides a layered insulation device for intelligent catering vehicles.

[0006] This utility model is achieved through the following technical means: a layered insulation device for an intelligent food delivery vehicle, comprising a movable frame, shock-absorbing wheels, a push rod, an insulation box, cover plates, louvers, a hot air blower, a cold air blower, a heating layer, a cooling layer, and partitions. Multiple shock-absorbing wheels are arranged in two rows and two columns, rotating and positioned at the lower part of the movable frame. The insulation box is installed on the upper part of the movable frame. The push rod is fixed to one side of the movable frame. Two cover plates are arranged along a vertical line, rotating and positioned on one side of the insulation box, and closing the insulation box from the left-hand view. The hot air blower is installed on the upper side of the insulation box, and the cold air blower is installed on the lower side of the insulation box. A louver is installed on one side of each of the hot and cold air blowers. The first partition is fixed inside the insulation box. In the first part of the compartment, the second partition is fixed to the top of the movable frame and is fixedly connected to the bottom of the insulation box. The two partitions work together to divide the interior of the insulation box into two independent areas. The heating layer and the cooling layer are slidably arranged inside the insulation box, and are located in the two independent areas respectively, forming a tight sliding contact with the two partitions. An air duct is opened on one side of the heating layer and the cooling layer. The hot air fan and the cold air fan are located on one side of the two air ducts respectively. Two cover plates are located on one side of the heating layer and the cooling layer respectively. The hot air fan is located on one side of the heating layer and the cold air fan is located on one side of the cooling layer. It also includes a sealing assembly, which is arranged between the heating layer, the cooling layer and the two partitions.

[0007] As a preferred technical solution of this utility model, the sealing assembly includes guide rods, baffles, compression springs, and pulleys. Two guide rods are symmetrically distributed and fixed to one side of the heating layer and the cooling layer, respectively. Each baffle is slidably disposed outside each guide rod and makes slidable contact with the heating layer or the cooling layer. Each compression spring is sleeved outside each guide rod, and its two ends are fixedly connected to the corresponding baffle and the heating layer or the cooling layer, respectively. Each baffle has a pulley rotatably disposed at the lower part. The top of each of the two partitions has two guide grooves distributed front and back. The number of pulleys and guide grooves are the same, and they make slidable contact with each other.

[0008] As a preferred technical solution of this utility model, it also includes a limiting plate. Multiple limiting plates are fixedly connected inside the heating layer and the cooling layer. One of these limiting plates is set vertically and serves as the main support and separation reference. The remaining limiting plates are set horizontally and are all fixedly connected to the vertically set limiting plate to form a separation frame. The vertical surface of each limiting plate other than the edge is set as a filter structure.

[0009] As a preferred technical solution of this utility model, it also includes limiting blocks. Each limiting block is fixed to one end of each guide groove and is located on one side of the adjacent pulley, contacting it. The limiting block is made of high polymer elastic composite material, and the surface of the limiting block in contact with the pulley is arc-shaped, perfectly matching the shape of the pulley.

[0010] As a preferred technical solution of this utility model, it also includes a first handle, with a first handle rotatably provided on one side of the heating layer and the cooling layer, and the left side of the first handle is on the same vertical plane as the heating layer and the cooling layer.

[0011] As a preferred embodiment of this utility model, it also includes a second handle, with each second handle fixed to one side of each cover plate.

[0012] As a preferred technical solution of this utility model, it also includes magnets. Two magnets are distributed vertically and fixedly embedded on one side of the front of the insulated box, and are respectively located on one side of the two cover plates. The side of the cover plate that contacts the insulated box is covered with a layer of magnetic material.

[0013] As a preferred technical solution of this utility model, the inner wall of the insulated box is provided with an insulation layer.

[0014] Beneficial effects: By setting up a sealing assembly consisting of guide rods, baffles, compression springs and pulleys, the baffle position can be automatically adjusted when taking food, temporarily sealing the air duct, effectively reducing the leakage of hot or cold air, reducing energy loss and improving energy utilization efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, such as louvers, hot air blowers, and cold air blowers.

[0017] Figure 3 This is a partial cross-sectional view of the heat preservation box component of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the heating layer, cooling layer, and limiting plate of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the guide rod, baffle, and compression spring components of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the heating layer, cooling layer, and partition plate components of this utility model.

[0021] The components include: 1. Movable frame; 101. Shock-absorbing wheel; 2. Push rod; 3. Insulated box; 4. Cover plate; 5. Louver; 6. Hot air blower; 61. Cold air blower; 7. Heating layer; 71. Cooling layer; 72. Limiting plate; 73. Air duct; 8. Partition; 9. Guide rod; 10. Baffle; 11. Compression spring; 12. Pulley; 13. Guide groove; 14. Limiting block; 15. First handle; 151. Second handle; 16. Magnet. Detailed Implementation

[0022] Example: A layered insulation device for intelligent food delivery vehicles, such as Figures 1-6As shown, the device includes a mobile frame 1, shock-absorbing wheels 101, a push rod 2, an insulated box 3, a cover plate 4, louvers 5, a hot air blower 6, a cold air blower 61, a heating layer 7, a cooling layer 71, a limiting plate 72, a partition 8, a first handle 15, a second handle 151, and a magnet 16. The four shock-absorbing wheels 101 are arranged in two rows and two columns, rotating at the four corners of the lower part of the mobile frame 1. Each shock-absorbing wheel 101 is made of high-quality rubber, possessing good elasticity and wear resistance, effectively buffering vibrations generated during movement, ensuring the stability of the device during transportation, and reducing damage to food caused by vibration. The insulated box 3 is bolted to the upper part of the mobile frame 1, and its open bottom end is tightly connected to the mobile frame 1, with the connection sealed with a sealing strip to prevent... To prevent air leakage and ensure insulation, the inner wall of the insulated box 3 is equipped with an insulation layer made of high-performance heat insulation material. This layer minimizes heat transfer between the inside and outside of the insulated box 3, effectively maintaining the stability of the internal temperature. The push rod 2 is welded to the rear of the moving frame 1. Its upper gripping part extends beyond the overall height of the insulated box 3 and has an anti-slip surface, making it easy for operators to grip firmly and apply force more easily when pushing the device. Two cover plates 4 are rotatably arranged along a vertical line on the left side of the insulated box 3, closing the insulated box 3 from the left-hand view. The hot air blower 6 is bolted to the upper right side of the insulated box 3, and the cold air blower 61 is bolted to the lower right side of the insulated box 3. Each of the hot air blower 6 and the cold air blower 61 is bolted to the right side. The louvers 5 have adjustable blades, allowing for adjustments to ventilation or complete closure as needed. The first partition 8 is welded to the central area of ​​the insulation box 3, and the second partition 8 is welded to the top of the movable frame 1 and fixedly connected to the bottom of the insulation box 3. These two partitions 8 work together to divide the interior of the insulation box 3 into two independent areas. The heating layer 7 and cooling layer 71 are vertically distributed and slidably positioned inside the insulation box 3, respectively located in the two independent areas and forming a tight sliding contact with the two partitions 8. An air duct 73 is opened on the right side of each of the heating layer 7 and cooling layer 71. A hot air blower 6 and a cold air blower 61 are located on the right side of the two air ducts 73, respectively. Two cover plates 4 are located on the left side of the heating layer 7 and cooling layer 71, respectively. The heating layer 7 and cooling layer 71 are in close contact with each other. The hot air blower 6 is located to the right of the heating layer 7, and the cold air blower 61 is located to the right of the cooling layer 71. Five limiting plates 72 are welded inside both the heating layer 7 and the cooling layer 71. One of these limiting plates 72 is vertically positioned, serving as the main support and dividing reference. The other four limiting plates 72 are horizontally positioned and fixedly connected to the vertically positioned limiting plate 72, together forming a dividing frame. Through the reasonable arrangement of these five limiting plates 72, the internal space of the heating layer 7 and the cooling layer 71 is effectively divided into multiple independent and orderly areas, facilitating the placement of food in separate areas and avoiding mutual interference. The vertical surface of each limiting plate 72, except for its edge, is set as a filter structure. These filters have appropriate porosity.It can effectively block the entry of impurities and dust, while allowing hot and cold air to flow freely between the different areas of the heating layer 7 and the cooling layer 71, thereby maintaining the stability and uniform distribution of the internal temperature of the heating layer 7 and the cooling layer 71. A first handle 15 is rotatably provided on the left side of the heating layer 7 and the cooling layer 71, and the left side of the first handle 15 is on the same vertical plane as the heating layer 7 and the cooling layer 71 to prevent the presence of the first handle 15 from affecting the contact between the two cover plates 4 and the heating layer 7 and the cooling layer 71. Each second handle 151 is welded to the left side of each cover plate 4 at a position tending towards the front. Two magnets 16 are distributed vertically and embedded in the front left side of the heat preservation box 3, and are respectively located on the front side of the two cover plates 4. The front side of the cover plate 4 that contacts the heat preservation box 3 is covered with a layer of strongly magnetic material. By means of the magnetic attraction generated between the magnetic material layer and the magnets 16, the cover plate 4 can be firmly fixed to the heat preservation box 3. It also includes a sealing assembly, which is disposed between the heating layer 7, the cooling layer 71 and the two partition plates 8. ,

[0023] like Figure 4 and Figure 5As shown, the sealing assembly includes guide rods 9, baffles 10, compression springs 11, pulleys 12, and limiting blocks 14. Two symmetrically distributed guide rods 9 are welded to the right sides of both the heating layer 7 and the cooling layer 71. Each baffle 10 is slidably disposed outside each guide rod 9 and slides in contact with the heating layer 7 or the cooling layer 71. Each compression spring 11 is sleeved on the outside of each guide rod 9, with its inner and outer ends fixedly connected to the corresponding baffle 10 and the heating layer 7 or the cooling layer 71, respectively. A pulley 12 is rotatably disposed at the lower part of each baffle 10. Two guide grooves 13 are distributed front and back at the top of each of the two partitions 8. The number of pulleys 12 and guide grooves 13 is the same, and they slide in contact one-to-one. Each limiting block 14 is adhered to the right end of each guide groove 13 and is located on the left side of the adjacent pulley 12, contacting it. The limiting block 14 is made of a high-polymer elastic composite material, such as polyurethane elastomer, possessing certain elasticity and strength. Under force interference, the limiting block 14 can reliably block the pulley 12, preventing it from sliding unnecessarily due to unexpected situations. When the pulley 12 needs to slide due to a certain amount of external force, the limiting block 14 can undergo moderate elastic deformation under the squeezing action of the pulley 12, thereby allowing the pulley 12 to pass smoothly. This ensures that the pulley 12 can slide freely when it needs to move, while avoiding potential safety hazards caused by the pulley 12 moving arbitrarily under normal conditions (i.e., the heating layer 7 or cooling layer 71 automatically sliding out). The contact surface between the limiting block 14 and the pulley 12 is arc-shaped, perfectly matching the shape of the pulley 12. When the pulley 12 squeezes the limiting block 14 during movement, this fitting arc-shaped contact surface can guide the pulley 12 to transition smoothly, changing the collision between the two from a hard rigid contact to a softer, gradual contact, thereby effectively dispersing and significantly reducing the impact force generated at the moment of collision.

[0024] In the initial state, the compression spring 11 is in a compressed state. When the device needs to be used, the operator first rotates the upper cover 4 clockwise to open the upper inner area of ​​the insulated box 3. Then, the heating layer 7 is pulled out smoothly to the left through the first handle 15. Food that needs to be kept heated is placed into the heating layer 7. After the food is placed, the heating layer 7 is pushed back smoothly to the right. After the heating layer 7 is in place, the upper cover 4 is rotated counterclockwise to close the upper inner area of ​​the insulated box 3. Then, the same steps are repeated to put food that needs to be kept cooled into the cooling layer 71.

[0025] After the food is placed, the hot air blower 6 and the cold air blower 61 are turned on in sequence. When the hot air blower 6 is running, the heated high-temperature air is blown into the heating layer 7 through the upper air duct 73 to provide a suitable heating environment for the food in the heating layer 7. Similarly, when the cold air blower 61 is running, the cooled low-temperature air is blown into the cooling layer 71 through the lower air duct 73 to ensure that the food in the cooling layer 71 is kept in a low-temperature preservation state.

[0026] When the hot air blower 6 and the cold air blower 61 continue to run for a period of time, so that the heating layer 7 and the cooling layer 71 reach and stabilize within the preset temperature range to meet the food insulation requirements, the hot air blower 6 and the cold air blower 61 are turned off, and the two louvers 5 are closed to isolate the insulation box 3 from the outside air circulation, reduce the loss of heat or cold, and further maintain the temperature stability inside the insulation box 3.

[0027] Then, hold the push rod 2 and push the mobile frame 1 to start delivering food. When the mobile frame 1 reaches the designated location, repeat the above steps to pull out the heating layer 7 or the cooling layer 71 to take out the food. During the pulling process, the corresponding two pulleys 12 slide to the left along the corresponding two guide grooves 13 with the heating layer 7 or the cooling layer 71. During the sliding, the two pulleys 12 drive the two baffles 10 to move inward. The compression spring 11 then returns to its original state, releasing the stored elastic potential and providing assistance for the baffles 10 to move inward. After the heating layer 7 or the cooling layer 71 is pulled out, the pulleys 12 slide to the leftmost end of the guide groove 13. At this time, the corresponding two baffles 10 move inward to the appropriate position and contact each other to form a temporary sealing barrier, blocking the corresponding air duct 73 and preventing the hot or cold air inside the insulated box 3 from being lost through the upper air duct 73 or the lower air duct 73 during the food retrieval process.

[0028] After taking the food, push back the heating layer 7 or the cooling layer 71. During the pushing process, the two corresponding pulleys 12 slide to the right along the two corresponding guide grooves 13 with the heating layer 7 or the cooling layer 71. During the sliding, the two pulleys 12 drive the two baffles 10 to move outward, and the compression spring 11 returns to its initial compressed state.

[0029] It is important to note that food delivery vehicles can be either manually propelled in a traditional mode, which is simple and flexible to operate and suitable for various scenarios; or they can be intelligently driven, equipped with advanced sensors and control systems, enabling functions such as automatic navigation and precise positioning, thereby improving delivery efficiency and accuracy.

Claims

1. A layered insulation device for an intelligent catering vehicle, comprising a movable frame (1), shock-absorbing wheels (101), push rods (2), an insulation box (3), cover plates (4), louvers (5), a hot air blower (6), a cold air blower (61), a heating layer (7), a cooling layer (71), and partitions (8). Multiple shock-absorbing wheels (101) are arranged in two rows and two columns and rotated on the lower part of the movable frame (1). The insulation box (3) is installed on the upper part of the movable frame (1). The push rod (2) is fixed to one side of the movable frame (1). Two cover plates (4) are arranged along a vertical line and rotated on one side of the insulation box (3), and the insulation box (3) is closed from the left view. The hot air blower (6) is installed on the upper side of the insulation box (3), and the cold air blower (61) is installed on the lower side of the insulation box (3). A louver (5) is installed on one side of each of the hot air blower (6) and the cold air blower (61). A partition (8) is fixedly connected to the middle area inside the heat preservation box (3). A second partition (8) is fixedly connected to the top of the movable frame (1) and is fixedly connected to the bottom of the heat preservation box (3). The two partitions (8) cooperate to divide the interior of the heat preservation box (3) into two independent areas. The heating layer (7) and the cooling layer (71) are vertically distributed and slidably arranged inside the heat preservation box (3), and are respectively located in the two independent areas to form a tight sliding contact with the two partitions (8). An air duct (73) is opened on one side of the heating layer (7) and the cooling layer (71). The hot air blower (6) and the cold air blower (61) are respectively located on one side of the two air ducts (73). The two cover plates (4) are respectively located on one side of the heating layer (7) and the cooling layer (71). The hot air blower (6) is located on one side of the heating layer (7), and the cold air blower (61) is located on one side of the cooling layer (71). The feature is: It also includes a sealing assembly disposed between the heating layer (7), the cooling layer (71) and the two partitions (8).

2. The layered insulation device for intelligent food delivery vehicles as described in claim 1, characterized in that: The sealing assembly includes guide rods (9), baffles (10), compression springs (11) and pulleys (12). Two guide rods (9) are symmetrically distributed and fixed to one side of the heating layer (7) and the cooling layer (71). Each baffle (10) is slidably disposed outside each guide rod (9) and slidably contacts the heating layer (7) or the cooling layer (71). Each compression spring (11) is sleeved outside each guide rod (9), and its two ends are fixedly connected to the corresponding baffle (10) and the heating layer (7) or the cooling layer (71) respectively. Each baffle (10) has a pulley (12) rotatably disposed at the lower part. The top of each of the two partitions (8) is provided with two guide grooves (13) distributed front and back. The number of pulleys (12) and guide grooves (13) are the same and they slide in contact with each other.

3. The layered insulation device for intelligent food delivery vehicles as described in claim 2, characterized in that: It also includes a limiting plate (72). Multiple limiting plates (72) are fixed inside the heating layer (7) and the cooling layer (71). One of these limiting plates (72) is set vertically as the main support and separation reference, while the other limiting plates (72) are set horizontally and are all fixedly connected to the vertically set limiting plate (72) to form a separation frame. The vertical surface of each limiting plate (72) other than the edge is set as a filter structure.

4. The layered insulation device for intelligent food delivery vehicles as described in claim 3, characterized in that: It also includes a limiting block (14), each limiting block (14) is fixed to one end of each guide groove (13) and located on one side of the adjacent pulley (12) in contact with it. The limiting block (14) is made of high polymer elastic composite material. The surface of the limiting block (14) in contact with the pulley (12) is arc-shaped and perfectly matches the shape of the pulley (12).

5. The layered insulation device for intelligent food delivery vehicles as described in claim 4, characterized in that: It also includes a first handle (15), with a first handle (15) rotatably provided on one side of the heating layer (7) and the cooling layer (71), and the left side of the first handle (15) is on the same vertical plane as the heating layer (7) and the cooling layer (71).

6. The layered insulation device for intelligent food delivery vehicles as described in claim 5, characterized in that: It also includes a second handle (151), each second handle (151) being fixed to one side of each cover plate (4).

7. The layered insulation device for intelligent food delivery vehicles as described in claim 6, characterized in that: It also includes magnets (16), two magnets (16) are embedded in one side of the front of the insulated box (3) and located on one side of the two covers (4), and the side of the cover (4) that contacts the insulated box (3) is covered with a layer of magnetic material.

8. The layered insulation device for intelligent food delivery vehicles as described in claim 7, characterized in that: The inner wall of the insulated box (3) is provided with an insulation layer.

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