A carton for cold chain transportation

Abstract

This invention relates to the field of cardboard boxes, and more specifically, to a cardboard box for cold chain transportation, including a sealing mechanism. The cardboard box includes a main body, with a lid integrally formed on the upper end. A crease is provided between the lid and the main body. Air intake components for guiding cold air into the interior of the main body are provided on both the front and rear sides. A cover component for sealing the air intake components during handling is fitted onto the outer side of the main body. This invention allows cold air to flow smoothly and quickly through the interior of the cardboard box via staggered air intake components, achieving rapid cooling of the food inside and meeting the low-temperature storage and rapid pre-cooling requirements of cold chain food. Furthermore, during the transfer of the cold chain cardboard box from cold storage to a refrigerated truck, the cover component can be lifted to fully seal the air intake components, effectively blocking external heat from entering the interior of the box and preventing the food inside from spoiling or affecting its taste due to sudden temperature changes.

Description

Technical Field

[0001] This invention relates to the field of cardboard boxes, and more specifically, to a cardboard box for cold chain transportation. Background Technology

[0002] Cold chain logistics is the core carrier for the distribution of fresh and frozen foods. Cardboard boxes, as the mainstream packaging for cold chain transportation, directly determine food quality and transportation safety through their pre-cooling efficiency, insulation, sealing, and structural strength. Currently, traditional cold chain transportation cardboard boxes suffer from several problems, including: Traditional cold chain cardboard boxes lack a dedicated cold air intake structure and have no staggered air intake channels or guide grooves. Cold air cannot flow smoothly through the box, resulting in high flow resistance, slow cooling speed, and inability to quickly pre-cool the food inside. Furthermore, during the transfer from cold storage to refrigerated trucks, traditional cardboard boxes lack a suitable structure to temporarily seal the air intake, allowing hot external air to rush into the box directly, causing a sudden temperature change. This can easily lead to food spoilage and impaired taste, completely disrupting the continuity of cold chain insulation. At the same time, traditional cardboard boxes have weak resistance to compression and impact, making them prone to side deformation and corner damage during stacking and transportation. Improvements are urgently needed. To address these issues, a new type of cardboard box for cold chain transportation is proposed. Summary of the Invention

[0003] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides a cardboard box for cold chain transportation to solve the problems mentioned in the background art.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a cardboard box for cold chain transportation, comprising a sealing mechanism, which includes a cardboard box body, a box lid integrally formed on the upper end of the cardboard box body, a crease between the box lid and the cardboard box body, air intake components for guiding cold air into the interior of the cardboard box body on both the front and rear sides of the cardboard box body, a cover component for sealing the air intake components during handling on the outer side of the cardboard box body, and a reinforcing mechanism provided around the cover component, the reinforcing mechanism including a reinforcing component disposed on the cover component for structural reinforcement around the cardboard box body.

[0005] The present invention is further configured such that the air intake component includes air inlets opened on the front and rear sides of the carton body, the air inlets are configured in at least three sets, and the air inlets on the front and rear sides are staggered, the cross-section of the air inlet is rectangular, and guide grooves are opened on both sides of the air inlet, and the two guide grooves are symmetrically arranged.

[0006] The present invention is further configured such that the guide groove is inclined and the extended end of the guide groove is connected to the air inlet.

[0007] The present invention is further configured such that the covering assembly includes a cover frame sleeved on the outside of the carton body, a foam board is provided on the side of the inner cavity of the cover frame near the air inlet, the foam board is embedded and bonded to the inner wall of the cover frame, the size of the foam board is larger than the size of the air inlet, a rib is bonded to the side of the inner cavity of the cover frame away from the air inlet, and a strip groove is provided on the side of the carton body near the rib.

[0008] The present invention is further configured such that the inner dimension of the sealing frame is adapted to the outer dimension of the carton body, and the sealing frame is movably connected to the outer side of the carton body. The four inner corners of the sealing frame are provided with arc-shaped smooth grooves, and the arc-shaped smooth grooves fit into the four outer corners of the carton body.

[0009] The present invention is further configured such that a handle rope is provided on both sides of the sealing frame, and the handle rope is movably connected to the sealing frame.

[0010] The present invention is further configured such that the size of the rib is adapted to the size of the groove, and the rib and the groove are slidably connected.

[0011] The present invention is further configured such that the reinforcing component includes first corrugated paper corner protectors glued to the four lower corners of the carton body, second corrugated paper corner protectors embedded and glued to the four corners of the sealing frame, the second corrugated paper corner protectors being positioned above the first corrugated paper corner protectors, the upper end of the first corrugated paper corner protectors having a slot, the lower end of the second corrugated paper corner protectors being integrally formed and connected to a paper rod, and the upper four corners of the carton body all having third corrugated paper corner protectors embedded and glued.

[0012] The present invention is further configured such that the size of the paper rod is adapted to the size of the slot, and the paper rod is movably inserted into the slot.

[0013] The present invention is further configured such that the edge of the sealing frame is flush with the edge of the first corrugated paper corner protector, and the length of the second corrugated paper corner protector is the same as the height of the sealing frame.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a cardboard box for cold chain transportation, which has the following beneficial effects: This invention utilizes a staggered air intake component to allow cold air to flow smoothly and quickly through the interior of the cardboard box, rapidly cooling the food inside and meeting the low-temperature storage and rapid pre-cooling requirements of cold chain food. Furthermore, the cover component has a dual function: during the transfer of the cold chain cardboard box from cold storage to a refrigerated truck, the cover component can be pulled up to completely seal the air intake component, effectively blocking external heat from entering the box and preventing spoilage or affecting the taste of the food due to sudden temperature changes. During normal transportation, the cover component can be reset, tightly fitting the outside of the cardboard box to form an additional reinforcement structure, significantly reducing the risk of side deformation during stacking and transportation. Simultaneously, the strengthening mechanism and the reset cover component work together to form a comprehensive structural reinforcement around the cardboard box, further improving the impact resistance of the sides and ensuring the safety of the food inside. Attached Figure Description

[0015] Figure 1 This is a first-person view structural diagram showing the placement of cardboard boxes used in cold chain transportation.

[0016] Figure 2 This is a second-view structural diagram showing the placement of cardboard boxes used in cold chain transportation.

[0017] Figure 3 This is a schematic diagram of the lifting structure of a cardboard box used in cold chain transportation.

[0018] Figure 4 This is a schematic diagram of the covering component structure for cardboard boxes used in cold chain transportation.

[0019] Figure 5 This is a schematic diagram of the internal structure of a cardboard box used for cold chain transportation.

[0020] Figure 6 This is a schematic diagram of the internal structure of the sealing frame of a cardboard box used in cold chain transportation.

[0021] Figure 7 for Figure 3 A magnified view of part A.

[0022] In the diagram: 100, sealing mechanism; 101, carton body; 102, carton lid; 103, crease; 104, sealing frame; 105, handle rope; 106, air inlet; 107, guide groove; 108, curved smooth groove; 109, corrugated strip; 110, foam board; 111, strip groove; 200, reinforcing mechanism; 201, first corrugated paper corner protector; 202, second corrugated paper corner protector; 203, paper stick; 204, slot; 205, third corrugated paper corner protector. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0026] For examples, please refer to Figures 1-7 A cardboard box for cold chain transportation includes a sealing mechanism 100, which includes a cardboard box body 101. A box cover 102 is integrally formed on the upper end of the cardboard box body 101. A crease 103 is provided between the box cover 102 and the cardboard box body 101. Air intake components for guiding cold air into the interior of the cardboard box body 101 are provided on both the front and rear sides of the cardboard box body 101. A cover component for sealing the air intake components during transportation is provided on the outer side of the cardboard box body 101. A reinforcing mechanism 200 is provided around the cover component. The reinforcing mechanism 200 includes a reinforcing component provided on the cover component for structural reinforcement around the cardboard box body 101.

[0027] In this embodiment, the lid 102 on top of the carton body 101 is folded by crease 103 to seal the carton. The two folded lids 102 are then glued together with tape. The staggered air intake assembly guides cold air smoothly into the carton body 101 along the staggered path, achieving rapid airflow and quickly cooling the food inside. This meets the pre-cooling and low-temperature storage requirements of cold chain food. During the transfer of the cold chain carton from the cold storage to the refrigerated truck, the cover assembly is moved by external force. It also covers the air intake component, achieving complete sealing of the air intake component, thereby preventing heat from the external environment from entering the carton and avoiding sudden temperature changes inside the carton. During normal transportation, when the lifting force is removed, the covering component moves down and resets under its own weight, tightly wrapping around the outside of the carton body 101, forming an additional reinforcement layer. The strengthening mechanism 200 and the reset covering component work together to provide all-round structural support for the carton body 101, thereby improving the overall compression resistance of the carton and preventing the sides of the carton from deforming during stacking and transportation, thus ensuring the safety of the goods inside the carton.

[0028] Specifically, the air intake assembly includes air inlets 106 on the front and rear sides of the carton body 101. At least three sets of air inlets 106 are provided, and the front and rear air inlets 106 are staggered. The cross-section of the air inlet 106 is rectangular. Guide grooves 107 are provided on both sides of the air inlet 106, and the two guide grooves 107 are symmetrically arranged. The guide grooves 107 are inclined, and the extended ends of the guide grooves 107 are connected to the air inlets 106.

[0029] In this embodiment, the air inlets 106 on the front and rear sides are staggered, so that when cold air enters from one side air inlet 106, it will not directly collide with the cold air entering from the other side air inlet 106, but will form a smooth through-flow circulation, quickly flowing through the interior of the carton body 101, achieving rapid cooling of the food inside the carton, shortening the pre-cooling time, and thus improving the efficiency of cold chain transportation. The guide grooves 107 are symmetrically opened on both sides of the air inlet 106. The guide grooves 107 can guide the incoming cold air, thereby reducing the flow resistance of the cold air at the air inlet 106, guiding the cold air to enter the interior of the carton quickly and evenly, and further improving the cooling efficiency.

[0030] The covering assembly includes a cover frame 104 fitted onto the outside of the carton body 101. A foam board 110 is provided on the side of the inner cavity of the cover frame 104 near the air inlet 106. The foam board 110 is embedded and bonded to the inner wall of the cover frame 104. The size of the foam board 110 is larger than the size of the air inlet 106. A rib 109 is bonded on the side of the inner cavity of the cover frame 104 away from the air inlet 106. A strip groove 111 is provided on the side of the carton body 101 near the rib 109. The size of the rib 109 is adapted to the size of the strip groove 111, and the rib 109 and the strip groove 111 are slidably connected.

[0031] In this embodiment, the cover frame 104 of the covering component is sleeved on the outside of the carton body 101. It has a simple structure and is easy to install, allowing for flexible switching of operating states according to usage scenarios to adapt to different needs of cold chain transportation. A foam board 110, larger than the air inlet 106, is embedded in the inner wall of the cover frame 104. When the cover frame 104 is lifted, the foam board 110 moves upward simultaneously and fully covers the air inlet 106 and the guide groove 107. Utilizing the sealing performance of the foam board 110, it blocks external heat from entering, reduces cold air loss, and simultaneously prevents dust and debris from entering the carton, thus protecting it. Food safety is ensured, and the foam board 110 itself has a certain cushioning performance. When the sealing frame 104 is reset, the foam board 110 adheres to the outside of the carton body 101, forming a buffer protective layer together with the sealing frame 104 to reduce collision damage during handling and stacking. The ribs 109 on the inner side of the sealing frame 104 cooperate with the strip grooves 111 of the carton body 101. When the sealing frame 104 is lifted, the ribs 109 slide in the strip grooves 111, which can prevent the sealing frame 104 from shifting, thereby ensuring that the foam board 110 can cover the air intake component and ensure the sealing effect of the lid.

[0032] It is worth noting that waterproof films are bonded to both the inner and outer sides of the sealing frame 104 and the carton body 101 to achieve a waterproof effect. In addition, the edges of the ribs 109 and the inner walls of the grooves 111 are smoothed, which makes it easier for workers to lift the sealing frame 104 smoothly and also makes it easier for the sealing frame 104 to slide down and reset smoothly.

[0033] Preferably, the inner dimensions of the sealing frame 104 are adapted to the outer dimensions of the carton body 101, and the sealing frame 104 is movably connected to the outer side of the carton body 101. The four inner corners of the sealing frame 104 are provided with arc-shaped smooth grooves 108, which fit with the four outer corners of the carton body 101.

[0034] In this embodiment, the inner dimensions of the sealing frame 104 are adapted to the outer dimensions of the carton body 101, so that the sealing frame 104 and the carton body 101 can fit tightly together. When the sealing frame 104 is lifted, the fitting structure can improve the sealing performance of the lid, effectively block external heat, reduce the loss of cold air, and stabilize the temperature inside the box. After the sealing frame 104 is reset, it tightly wraps around the outside of the carton body 101, forming an additional reinforcing layer, enhancing the compression resistance of the carton side, and reducing the risk of deformation. The sealing frame 104 and the carton body 101 are connected in a movable manner, which can flexibly realize the lifting and resetting operations, thereby adapting to the switching of transfer and transportation scenarios and making the operation convenient. The arc-shaped smooth grooves 108 opened at the four corners of the inner side of the sealing frame 104 fit with the four corners of the outer side of the carton body 101. When the sealing frame 104 is lifted or reset, the arc-shaped structure can improve the smoothness of the movement of the sealing frame 104.

[0035] It should be noted that both sides of the cover frame 104 are provided with handle ropes 105, and the handle ropes 105 are movably connected to the cover frame 104.

[0036] In this embodiment, the handle ropes 105 provided on both sides of the sealing frame 104 serve as force points for workers to handle and operate the covering component. In the scenario of transferring cold chain cartons from cold storage to cold chain trucks, workers can quickly move the sealing frame 104 by pulling the handle ropes 105 to achieve the sealing operation of the air intake component, thereby improving the efficiency of the transfer operation. Then, workers can pull the handle ropes 105 to transfer the carton body 101. At the same time, the structural design of the handle ropes 105 will not affect the reset operation of the sealing frame 104. After the sealing frame 104 is reset, the handle ropes 105 can naturally fit on the outside of the sealing frame 104 without affecting the regularity of the overall structure of the carton or interfering with the stacking stability of the carton.

[0037] Specifically, the reinforcing components include first corrugated paper corner protectors 201 glued to the four lower corners of the carton body 101, second corrugated paper corner protectors 202 embedded and glued to the four corners of the cover frame 104, the second corrugated paper corner protectors 202 being positioned above the first corrugated paper corner protectors 201, a slot 204 being provided at the upper end of the first corrugated paper corner protectors 201, a paper rod 203 being integrally formed and connected to the lower end of the second corrugated paper corner protectors 202, and third corrugated paper corner protectors 205 embedded and glued to the four upper corners of the carton body 101.

[0038] In this embodiment, the first corrugated cardboard corner protectors 201, located at the four lower corners of the cardboard body 101, utilize the structural strength of the corrugated cardboard to support and protect the four corners of the cardboard, reducing damage to the cardboard from collisions and compression during handling and stacking, and improving the load-bearing capacity and service life of the cardboard. The second corrugated cardboard corner protectors 202, embedded and bonded within the four corners of the sealing frame 104, correspond vertically to the first corrugated cardboard corner protectors 201. When the sealing frame 104 is reset, the second corrugated cardboard corner protectors 202 and the first corrugated cardboard corner protectors 201 form a reinforced structure that complements the external reinforcement of the sealing frame 104, jointly enhancing the impact and compression resistance of the overall sides of the cardboard, reducing the risk of deformation of the sides and four corners during stacking. The first corrugated cardboard corner protectors 201 are open... The slot 204 is designed to cooperate with the paper rod 203 integrally formed with the second corrugated paper corner protector 202. After the cover frame 104 is reset, the paper rod 203 is inserted into the slot 204 to connect the cover frame 104 with the first corrugated paper corner protector 201, thereby preventing the cover frame 104 from shifting during transportation and stacking, and ensuring the stability of the reinforcement effect. Through the third corrugated paper corner protector 205 embedded and glued at the four corners of the upper end of the carton body 101, when the staff lifts the cover frame 104 to block the air inlet 106, the upper edge of the cover frame 104 just abuts against the bottom of the third corrugated paper corner protector 205, thereby forming a stable support structure, which makes it convenient for the staff to lift and transport the entire carton body 101 by pulling the handle rope 105.

[0039] It should be noted that the size of the paper stick 203 is compatible with the size of the slot 204, and the paper stick 203 and the slot 204 are movably connected.

[0040] In this embodiment, when the sealing frame 104 is reset, the paper stick 203 can be quickly inserted into the slot 204 to achieve quick docking and fixation between the sealing frame 104 and the first corrugated paper corner protector 201, thereby improving the firmness of the connection and preventing the sealing frame 104 from shifting during transportation and stacking. This ensures that its outer reinforcement function is stably performed and further reduces the risk of deformation of the carton side under pressure. When the sealing frame 104 needs to be lifted when transferring from cold storage to refrigerated truck, the external force can lift the sealing frame 104 so that the paper stick 203 can quickly disengage from the slot 204 without affecting the lifting operation of the sealing frame 104, thus ensuring the convenience of sealing.

[0041] Preferably, the edge of the cover frame 104 is flush with the edge of the first corrugated paper corner protector 201, and the length of the second corrugated paper corner protector 202 is the same as the height of the cover frame 104.

[0042] In this embodiment, the edge of the sealing frame 104 is flush with the edge of the first corrugated cardboard corner protector 201, making the overall structure of the carton neat and preventing scratches caused by protruding edges during handling. At the same time, the flush edges facilitate the alignment of the upper and lower cartons when multiple cartons are stacked, preventing tilting and collapse caused by uneven edges during stacking, thus improving stacking stability. The length of the second corrugated cardboard corner protector 202 is the same as the height of the sealing frame 104, which can fully wrap and support the four corners of the sealing frame 104, preventing the sealing frame 104 from being damaged due to excessive local stress, thereby extending the service life of the sealing frame 104.

[0043] During use, when transferring the refrigerated truck from the cold storage, the worker pulls the handle rope 105, causing the sealing frame 104 to move upwards. The foam board 110 covers the air inlet 106 and the guide groove 107, and the corrugated strip 109 slides along the strip groove 111 to prevent displacement, thus ensuring the sealing of the air inlet 106. At the same time, while the worker pulls the sealing frame 104 to seal the air inlet 106, the upper edge of the sealing frame 104 just abuts against the bottom of the third corrugated paper corner protector 205, thus forming a stable support structure. This makes it easier for the worker to pull the handle rope 105 to seal the entire carton body 1. 01. After the carton is placed in the cold chain truck, the lid frame 104 is reset to form a reinforcing layer. The paper rods 203 of the second corrugated corner protectors 202 are inserted into the slots 204 of the first corrugated corner protectors 201 for fixation. The second corrugated corner protectors 202 are embedded and glued in the four corners of the lid frame 104, corresponding to the first corrugated corner protectors 201 vertically, forming a reinforced structure that echoes each other. Together with the external reinforcement of the lid frame 104, they enhance the impact and compression resistance of the overall side of the carton, thereby reducing the risk of deformation of the sides and four corners when stacked, and ensuring the safety of the food inside the carton.

[0044] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cardboard box for cold chain transportation, characterized in that: include; The sealing mechanism (100) includes a carton body (101), a lid (102) is integrally formed on the upper end of the carton body (101), a crease (103) is provided between the lid (102) and the carton body (101), air intake components for guiding cold air into the carton body (101) are provided on both the front and rear sides of the carton body (101), and a cover component for sealing the air intake components during transportation is provided on the outer side of the carton body (101), and a reinforcing mechanism (200) is provided around the cover component. The reinforcing mechanism (200) includes a reinforcing component disposed on the covering assembly for structural reinforcement of the four sides of the carton body (101).

2. The cardboard box for cold chain transportation according to claim 1, characterized in that: The air intake assembly includes air inlets (106) on the front and rear sides of the carton body (101). The air inlets (106) are configured in at least three sets, and the air inlets (106) on the front and rear sides are staggered. The cross-section of the air inlet (106) is rectangular. Guide grooves (107) are provided on both sides of the air inlet (106), and the two guide grooves (107) are symmetrically arranged.

3. A cardboard box for cold chain transportation according to claim 2, characterized in that: The guide groove (107) is inclined, and the extended end of the guide groove (107) is connected to the air inlet (106).

4. A cardboard box for cold chain transportation according to claim 3, characterized in that: The covering assembly includes a cover frame (104) fitted onto the outside of the carton body (101). A foam board (110) is provided on the side of the inner cavity of the cover frame (104) near the air inlet (106). The foam board (110) is embedded and bonded to the inner wall of the cover frame (104). The size of the foam board (110) is larger than the size of the air inlet (106). A rib (109) is bonded on the side of the inner cavity of the cover frame (104) away from the air inlet (106). A strip groove (111) is provided on the side of the carton body (101) near the rib (109).

5. A cardboard box for cold chain transportation according to claim 4, characterized in that: The inner dimensions of the sealing frame (104) are adapted to the outer dimensions of the carton body (101), and the sealing frame (104) is movably connected to the outer side of the carton body (101). The four inner corners of the sealing frame (104) are provided with arc-shaped smooth grooves (108), and the arc-shaped smooth grooves (108) are fitted to the four outer corners of the carton body (101).

6. A cardboard box for cold chain transportation according to claim 5, characterized in that: Both sides of the cover frame (104) are provided with handle ropes (105), and the handle ropes (105) are movably connected to the cover frame (104).

7. A cardboard box for cold chain transportation according to claim 6, characterized in that: The dimensions of the rib (109) are adapted to the dimensions of the groove (111), and the rib (109) and the groove (111) are slidably connected.

8. A cardboard box for cold chain transportation according to claim 7, characterized in that: The reinforcing components include first corrugated paper corner protectors (201) glued to the four lower corners of the carton body (101), second corrugated paper corner protectors (202) embedded and glued to the four corners of the cover frame (104), the second corrugated paper corner protectors (202) being positioned above the first corrugated paper corner protectors (201), a slot (204) being provided at the upper end of the first corrugated paper corner protector (201), a paper rod (203) being integrally formed and connected to the lower end of the second corrugated paper corner protector (202), and third corrugated paper corner protectors (205) being embedded and glued to the four upper corners of the carton body (101).

9. A cardboard box for cold chain transportation according to claim 8, characterized in that: The size of the paper stick (203) is adapted to the size of the slot (204), and the paper stick (203) and the slot (204) are movably inserted into each other.

10. A cardboard box for cold chain transportation according to claim 9, characterized in that: The edge of the cover frame (104) is flush with the edge of the first corrugated paper corner protector (201), and the length of the second corrugated paper corner protector (202) is the same as the height of the cover frame (104).

Images