EPP heat preservation packaging box

Abstract

The EPP heat preservation packaging box comprises a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate and a cover plate, and the four edges of the upper portion of the bottom plate are connected with the bottom of the first side plate, the bottom of the second side plate, the bottom of the third side plate and the bottom of the fourth side plate respectively to form a cube structure. A cover plate covers the first side plate, the second side plate, the third side plate and the fourth side plate, ice bag mounting grooves are formed in the middle of the first side plate, the middle of the second side plate, the middle of the third side plate and the middle of the fourth side plate, the two side edges of each ice bag mounting groove communicate with first circulation channels, and the adjacent ice bag mounting grooves communicate through the first circulation channels. According to the scheme, the adjacent ice bag mounting grooves communicate through the first circulation channels, cold air in the ice bags can circularly flow in the packaging box, and the heat preservation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat-insulating packaging boxes, and in particular relates to an EPP heat-insulating packaging box. Background Art

[0002] EPP material has low thermal conductivity and closed-cell structure, which can effectively isolate the influence of external temperature, thereby slowing down the change of internal temperature. This structure makes EPP insulation packaging box excellent in maintaining low or high temperature, ensuring the temperature of goods is stable during transportation or storage.

[0003] The Chinese patent with application number 2020219494019 discloses an EPP refrigerated insulation box, which belongs to the field of insulation boxes and solves the technical problems that the existing EPP insulation boxes are not strong enough or are prone to cold bridge phenomenon. The EPP refrigerated insulation box of the utility model includes an insulation box body, which is foamed from EPP material. The EPP insulation layer of the insulation box body is provided with embedded parts, which are pre-set in the foaming mold. After the EPP foaming is completed, the embedded parts are located in the formed insulation box body; the embedded parts can improve the strength of the insulation box body or be used to connect the accessories of the insulation box body. Since the embedded parts are inside the insulation layer, when the embedded parts are connected to the accessories outside the insulation box, or when the embedded parts are connected to the accessories inside the insulation box, the inside and outside of the insulation box will not be connected, so the insulation effect is better.

[0004] The above patent scheme has the effect of improving refrigeration and heat preservation, but the existing EPP insulated packaging boxes directly put ice bags into the EPP refrigerated insulation box when refrigerating and insulating the internal items. This method will make the temperature of the items in the insulation box close to the ice bags low, while the temperature of the items far away from the ice bags is relatively high, resulting in uneven refrigeration and heat preservation effect of the items inside the EPP insulated packaging box. Utility Model Content

[0005] To solve the above problems, the utility model provides an EPP thermal insulation packaging box, including a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate and a cover plate, the upper four sides of the bottom plate are respectively connected to the bottoms of the first side plate, the second side plate, the third side plate and the fourth side plate to form a square structure, the upper parts of the first side plate, the second side plate, the third side plate and the fourth side plate are covered with a cover plate, the middle of the first side plate, the second side plate, the third side plate and the fourth side plate are provided with ice bag installation grooves, both side sides of the ice bag installation grooves are connected with first circulation channels, and adjacent ice bag installation grooves are connected through the first circulation channels.

[0006] Preferably, a mounting plate is provided on one side of the opening of the ice bag mounting slot, the area of ​​the mounting plate is larger than the area of ​​the ice bag mounting slot, the mounting plate is provided with a first magnetic member, the first side plate, the second side plate, the third side plate, and the fourth side plate are all provided with a second magnetic member, and the first magnetic member and the second magnetic member have opposite magnetic properties.

[0007] Preferably, the interior of the base plate is provided with a first annular tube, a second annular tube and a third annular tube in sequence from the inside to the outside, the first annular tube, the second annular tube and the third annular tube are provided with connecting holes, the bottom of the ice bag mounting groove is connected to a second circulation channel, and the second circulation channel is connected to the third annular tube.

[0008] Preferably, a positioning frame is provided on the surface of the mounting plate, the shape of the positioning frame matches the shape of the ice bag mounting groove, and the side and bottom edges of the positioning frame are provided with through grooves.

[0009] Preferably, a first communicating hole is provided between the first annular tube and the second annular tube, a second communicating hole is provided between the second circulation channel and the third annular tube, and the first communicating hole and the second communicating hole are arranged alternately.

[0010] The advantages of the utility model are:

[0011] 1. This solution ensures the circulation of cold air in the entire insulated box by setting ice bag installation slots in the middle of the first side plate, the second side plate, the third side plate, and the fourth side plate, and these ice bag installation slots are connected through the first circulation channel. This design can make the cooling effect of the ice bag evenly distributed in every corner of the insulated box, thereby avoiding the problem of local temperature being too low or too high when the ice bag is directly placed, and achieving a more uniform temperature distribution.

[0012] 2. The first annular tube, the second annular tube and the third annular tube arranged on the bottom plate of the present invention, as well as the connecting holes therebetween and the second circulation channel connected to the ice bag installation slot, constitute a circulating cooling system. This design can further promote the circulation of cold air and improve the uniform refrigeration and heat preservation effect of the insulated box.

[0013] 3. In this solution, a first magnetic piece is provided on the mounting plate, which has opposite magnetic properties to the second magnetic piece on the side plate, so that the mounting plate can be opened and closed easily, and the ice pack can be put in and taken out, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structure diagram of the utility model.

[0015] Figure 2 This is a structural diagram of the first side panel of the utility model.

[0016] Figure 3 This is a structural diagram of the bottom plate of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the mounting plate of the utility model.

[0018] Figure 5 This is a diagram showing the connection status of the mounting plate and the first side plate of the utility model.

[0019] In the figure: 1 bottom plate, 2 first side plate, 3 second side plate, 4 third side plate, 5 fourth side plate, 6 cover plate, 7 ice bag mounting groove, 8 first circulation channel, 9 mounting plate, 10 first magnetic member, 11 second magnetic member, 12 first annular tube, 13 second annular tube, 14 third annular tube, 15 connecting hole, 16 second circulation channel, 17 positioning frame, 18 through groove, 19 first connecting hole, 20 second connecting hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. At the same time, when an element is referred to as "fixed on" or "provided on" another element, it can be directly on the other element or there may be a central element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "fixedly connected to" another element, it can be a common fixed connection method such as welding, bolting, or gluing. In short, for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Example 1

[0023] like Figure 1-3As shown, an EPP insulation packaging box includes a bottom plate 1, a first side plate 2, a second side plate 3, a third side plate 4, a fourth side plate 5 and a cover plate 6, and the bottom plate 1, the first side plate 2, the second side plate 3, the third side plate 4, the fourth side plate 5 and the cover plate 6 are all made of EPP material. The four upper sides of the bottom plate 1 are respectively connected to the bottoms of the first side plate 2, the second side plate 3, the third side plate 4, and the fourth side plate 5 to form a square structure, and the upper parts of the first side plate 2, the second side plate 3, the third side plate 4, and the fourth side plate 5 are covered with a cover plate 6, and the middle of the first side plate 2, the second side plate 3, the third side plate 4, and the fourth side plate 5 are provided with an ice bag installation groove 7 for storing ice bags. Both sides of the ice pack installation slot 7 on each side panel are connected with the first circulation channel 8, and the adjacent ice pack installation slots 7 are connected through the first circulation channel 8, and the ice pack installation slots 7 are connected through the first circulation channel 8. In this way, the first circulation channel 8 surrounds the entire insulation box, ensuring that the surrounding cold air in the entire insulation box is in a circulation state. This design can make the cooling effect of the ice pack evenly distributed in every corner of the insulation box, thereby avoiding the problem of local temperature being too low or too high caused by directly placing the ice pack, and achieving a more uniform temperature distribution.

[0024] The interior of the bottom plate 1 is provided with a first annular tube 12, a second annular tube 13 and a third annular tube 14 from the inside to the outside, and a connecting hole 15 is provided between the first annular tube 12, the second annular tube 13 and the third annular tube 14. The bottom of the ice bag installation groove 7 is connected with a second circulation channel 16, and the second circulation channel 16 is connected with the third annular tube 14. The ice bag is placed in the ice bag installation groove 7, and the cold air released by the ice bag first enters the ice bag installation groove 7. Since the bottom of the ice bag installation groove 7 is connected with the second circulation channel 16, the cold air enters the third annular tube 14 through the second circulation channel 16. The cold air in the third annular tube 14 further flows into the first annular tube 12 and the second annular tube 13 through the connecting holes between the other annular tubes. The cold air circulates in the annular tubes and gradually radiates to the entire interior of the insulated box through the material of the bottom plate 1, forming a uniform cold air distribution. The circulation of the cold air in the annular tube ensures that the cold air can be evenly distributed to every corner of the insulated box, thereby avoiding the problem of local temperature being too low or too high, and achieving a more uniform temperature distribution. Through the circulating cold air, the temperature in the insulated box can reach the set value faster and remain stable for a long time, thereby improving the refrigeration and heat preservation effect. A first connecting hole 19 is provided between the first annular tube 12 and the second annular tube 13, and a second connecting hole 20 is provided between the second circulation channel 16 and the third annular tube 14. The first connecting hole 19 and the second connecting hole 20 are arranged alternately, and the first connecting hole 19 and the second connecting hole 20 are arranged alternately, which helps the cold air to form a complex flow path between the annular tubes. This complex flow path can further promote the uniform distribution of cold air and reduce the accumulation and dead corner phenomenon of cold air.

[0025] Combination Figure 4-5 , a mounting plate 9 is provided on one side of the opening of the ice bag mounting slot 7, the area of ​​the mounting plate 9 is larger than the area of ​​the ice bag mounting slot 7, a first magnetic part 10 is provided on the mounting plate 9, and a second magnetic part 11 is provided on the first side plate 2, the second side plate 3, the third side plate 4, and the fourth side plate 5, and the first magnetic part 10 and the second magnetic part 11 are magnetically opposite. A first magnetic part 10 is provided on the mounting plate 9, and a second magnetic part 11 with opposite magnetic properties to the first magnetic part 10 is provided on the four side plates of the incubator. When the mounting plate 9 is close to the side plate, due to the principle of magnetic attraction, the mounting plate 9 will be automatically adsorbed on the side plate, thereby firmly fixing the ice bag. This design is convenient and effective, and no additional fasteners or tools are required. The design of the magnetic part allows the mounting plate 9 to be reused without frequent replacement. This helps to reduce waste and has an environmentally friendly effect.

[0026] A positioning frame 17 is provided on the surface of the mounting plate 9. The shape of the positioning frame 17 matches the shape of the ice pack mounting groove 7. In this embodiment, the shapes of the positioning frame 17 and the ice pack mounting groove 7 are both square, and the positioning frame 17 can be inserted into the ice pack mounting groove 7. The side and bottom edges of the positioning frame 17 are provided with through grooves 18 for communicating with the corresponding first circulation channel 8 and the second circulation channel 16. With the guidance of the positioning frame 17, the user can put the ice pack into the mounting groove more quickly and accurately. This not only improves the convenience of operation, but also reduces the mistakes caused by improper operation of the user.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An EPP insulation packaging box, characterized by: The invention comprises a bottom plate (1), a first side plate (2), a second side plate (3), a third side plate (4), a fourth side plate (5) and a cover plate (6); the upper four sides of the bottom plate (1) are respectively connected to the bottoms of the first side plate (2), the second side plate (3), the third side plate (4) and the fourth side plate (5) to form a cubic structure; the upper sides of the first side plate (2), the second side plate (3), the third side plate (4) and the fourth side plate (5) are covered with a cover plate (6); the middle of the first side plate (2), the second side plate (3), the third side plate (4) and the fourth side plate (5) are provided with an ice bag installation groove (7); both sides of the ice bag installation groove (7) are connected to a first circulation channel (8); adjacent ice bag installation grooves (7) are connected via the first circulation channel (8).

2. The EPP thermal insulation packaging box according to claim 1, characterized in that: A mounting plate (9) is provided on one side of the opening of the ice bag mounting groove (7); the area of ​​the mounting plate (9) is larger than the area of ​​the ice bag mounting groove (7); a first magnetic member (10) is provided on the mounting plate (9); and a second magnetic member (11) is provided on the first side plate (2), the second side plate (3), the third side plate (4), and the fourth side plate (5); the first magnetic member (10) and the second magnetic member (11) have opposite magnetic properties.

3. The EPP thermal insulation packaging box according to claim 2 is characterized in that: The interior of the bottom plate (1) is provided with a first annular tube (12), a second annular tube (13) and a third annular tube (14) in sequence from the inside to the outside; the first annular tube (12), the second annular tube (13) and the third annular tube (14) are provided with communicating holes (15) therebetween; the bottom of the ice pack mounting groove (7) is connected with a second circulation channel (16); the second circulation channel (16) is in communication with the third annular tube (14).

4. The EPP thermal insulation packaging box according to claim 3 is characterized in that: A positioning frame (17) is provided on the surface of the mounting plate (9); the shape of the positioning frame (17) matches the shape of the ice bag mounting groove (7); and through grooves (18) are provided on the side and bottom of the positioning frame (17).

5. The EPP thermal insulation packaging box according to claim 4 is characterized in that: A first communication hole (19) is provided between the first annular tube (12) and the second annular tube (13), a second communication hole (20) is provided between the second circulation channel (16) and the third annular tube (14), and the first communication hole (19) and the second communication hole (20) are arranged alternately.

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