Cold chain transport box capable of adjusting pressure in box

Abstract

The utility model relates to a cold chain transport case capable of adjusting the pressure in the case, which comprises a cold closet body, a plurality of cold source elements are arranged in the cold closet body, a drainage channel and a pressure relief channel are arranged on the side wall of the bottom of the cold closet body, and the outlet end of the drainage channel is connected with a channel plug. The outlet end of the pressure relief channel is connected with a pressure relief valve; in the cold chain transportation process of the refrigeration box body, the pressure release valve balances the pressure difference, and the box body is prevented from being damaged due to the too large pressure difference; at the moment, the condensate water can be discharged out of the box by opening the channel plug, so that the quality of goods is prevented from being influenced by accumulated water, the box body corrosion caused by long-term accumulated water is avoided, and convenience is brought to use.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, specifically to a cold chain transport box capable of adjusting the pressure inside the box. Background Technology

[0002] Cold chain transportation refers to the transportation of goods at a constant temperature throughout the entire process, including loading and unloading, changes in transportation methods, and replacement of packaging equipment. Cold chain transportation offers excellent preservation and a long shelf life, making it widely used in the food and pharmaceutical industries. Refrigerated containers are one type of equipment in cold chain transportation; their portability and compact size have made them a primary piece of equipment in cold chain transportation.

[0003] Authorization announcement number CN113443276B discloses a refrigerated box for cold chain transportation. According to its instruction manual and drawings, the solution includes a refrigeration compartment with a cover movably installed on the top of the compartment. The cover is connected to the refrigeration compartment by a hinge, so that refrigerant can be added to the interior of the compartment simply by opening the cover. However, when the refrigerated box is transported for a long time, condensation will continuously form inside, and the gas pressure inside the box will also change. If this is not dealt with in time, it will affect the overall transportation effect of the box. Summary of the Invention

[0004] This invention addresses the problems existing in the use of cold chain boxes by inventing a cold chain transport box that can regulate the internal pressure. During cold chain transportation, the pressure relief valve can release some gas through the pressure relief channel to balance the pressure difference. During cold chain transportation, due to the temperature difference between the inside and outside of the cold chain box, condensate will be generated inside the box. At this time, opening the channel plug can drain the condensate outside the box.

[0005] The purpose of this invention is achieved through the following technical solution: a cold chain transport box capable of adjusting the internal pressure, comprising a refrigerated box body, wherein the interior of the refrigerated box body is provided with a plurality of cold source components, and the bottom side wall of the refrigerated box body is provided with a drainage channel and a pressure relief channel, wherein the outlet end of the drainage channel is connected to a channel plug, and the outlet end of the pressure relief channel is connected to a pressure relief valve.

[0006] Preferably, the bottom sides of the refrigerated box body are provided with several first clearance grooves, the channel plug and the pressure relief valve are located inside the first clearance grooves, and the bottom surface of the refrigerated box body is provided with several anti-slip protrusions, on which external transported goods are stacked.

[0007] Preferably, the refrigerator body includes a box body and a box lid, both of which have polygonal cross-sections. The surface of the box body is provided with a rectangular limiting groove, and a silicone sealing ring is provided inside the rectangular limiting groove. The box lid is detachably connected to the surface of the box body.

[0008] Preferably, the top two sides of the box are provided with a number of second clearance grooves, and each second clearance groove is provided with a metal buckle inside. The metal buckle is detachably connected to the locking hook connecting plate on the side wall of the box cover.

[0009] Preferably, the cold source element is a cold storage plate, which is placed on both sides inside the box, and the inside of the cold storage plate is filled with a cold storage agent.

[0010] Preferably, the surface of the lid is provided with several stacking slots, and the bottom of the box body is provided with several stacking protrusions. The cooperation between the stacking slots and the stacking protrusions facilitates stacking and prevents relative sliding during stacking, ensuring stable stacking and enabling the stacking of multiple layers of refrigerated box bodies.

[0011] Preferably, the box body is provided with several third clearance grooves on both sides of the middle section, and each of the third clearance grooves is provided with a metal handle that can rotate inside, so that the metal handle can effectively distribute the load during transportation.

[0012] Preferably, the body of the refrigerator is made of low-density polyethylene. This material is chosen because it is tasteless, odorless, non-toxic, and has a matte, waxy granular surface. Low-density polyethylene has good chemical stability, is corrosion-resistant, acid-resistant, alkali-resistant, pressure-resistant, and has good moisture-proof properties, so it will not contaminate the items inside the refrigerator.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. During the cold chain transportation process, the pressure relief valve can release some gas through the pressure relief channel to balance the pressure difference, prevent the box from being damaged due to excessive pressure difference, and also make the lid easier to open, bringing convenience to use; 2. During the cold chain transportation process, due to the temperature difference between the inside and outside of the refrigerated box, condensation will be generated inside the box. At this time, opening the channel plug can drain this condensation outside the box, preventing water accumulation from affecting the quality of goods and avoiding corrosion of the box due to long-term water accumulation, bringing convenience to use. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a perspective view of the present utility model;

[0017] Figure 4 This is a partially enlarged view of the present invention.

[0018] The diagram shows the following markings: 1. Refrigerated container body; 11. Drainage channel; 12. Pressure relief channel; 13. First clearance groove; 14. Anti-slip boss; 15. Container body; 16. Container lid; 151. Rectangular limiting groove; 152. Second clearance groove; 153. Third clearance groove; 154. Stacking boss; 161. Locking hook connecting plate; 162. Stacking slot; 2. Cold source element; 3. Channel plug; 4. Pressure relief valve; 5. Silicone sealing ring; 6. Metal buckle; 7. Metal handle. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0020] like Figures 1 to 4 As shown, a cold chain transport box capable of adjusting internal pressure includes a refrigerated box body 1. The refrigerated box body 1 includes a box body 15 and a box lid 16. The cross-section of the box body 15 and the box lid 16 are both polygonal. The surface of the box body 15 is provided with a rectangular limiting groove 151. The inside of the rectangular limiting groove 151 is provided with a silicone sealing ring 5. The box lid 16 is detachably connected to the surface of the box body 15. Several second clearance grooves 152 are provided on both sides of the top of the box body 15. Each second clearance groove 152 is provided with a metal buckle 6. The metal buckle 6 is detachably connected to a locking hook connecting plate 161 on the side wall of the box lid 16. Several anti-slip protrusions 14 are provided on the bottom surface of the refrigerated box body 1. External transport items are stacked on the surface of the anti-slip protrusions 14. With this setup, the metal buckle 6 and the locking hook connecting plate 161 can be locked together to achieve a detachable connection between the box body 15 and the box cover 16. The metal buckle 6 is easy to install, convenient to use, safe, firm, vibration-proof, and has strong fastening properties. It can be reused. The silicone sealing ring 5 mainly serves to keep the air warm and seal the box, preventing cold air leakage and external heat from entering.

[0021] In this embodiment, the interior of the refrigerator body 1 is provided with several cold source elements 2, which are cold storage plates placed on both sides inside the body 15. The cold storage plates are filled with a cold storage agent, which is a phase change cold storage material. This type of material uses the absorption or release of heat during phase change to store or release energy, and has advantages such as high energy density, simple device, and small size. Common phase change cold storage materials include organic composite phase change materials, such as octanoic acid-myristic acid, and potassium sorbate composite phase change materials. The surface of the lid 16 is provided with several stacking slots 162, and the bottom of the body 15 is provided with several stacking protrusions 154. The stacking of different refrigerator bodies 1 is achieved by the cooperation of the stacking slots 162 and the stacking protrusions 154, which facilitates stacking and prevents relative sliding during stacking, ensuring stable stacking and ensuring that multiple layers of refrigerator bodies 1 can be stacked. The box body 15 has several third clearance slots 153 on both sides of the middle section. Each third clearance slot 153 has a rotatable metal handle 7 inside, which can effectively distribute the load during handling. If the box is fully loaded with up to 150 kg, when four people are handling the aviation cold chain transport box, each person only needs to bear an average force of 37.5 kg, effectively distributing the load.

[0022] In this embodiment, the bottom sidewall of the refrigerator body 1 is provided with a drainage channel 11 and a pressure relief channel 12. The outlet end of the drainage channel 11 is connected to a channel plug 3, and the outlet end of the pressure relief channel 12 is connected to a pressure relief valve 4. Several first clearance grooves 13 are provided on both sides of the bottom of the refrigerator body 1. The channel plug 3 and the pressure relief valve 4 are located inside the first clearance grooves 13. The refrigerator body 1 is made of low-density polyethylene. This material is chosen because it is tasteless, odorless, non-toxic, and has a matte, waxy granular surface. Low-density polyethylene has good chemical stability, is corrosion-resistant, acid-resistant, alkali-resistant, pressure-resistant, and has good moisture-proof performance, and will not contaminate the items in the refrigerator body 1. The pressure relief valve 4 is mainly used to balance the pressure difference. This is because during the transportation of the refrigerator body 1, due to changes in the external temperature, the internal temperature is reduced by the cold source element 2, resulting in a decrease in internal pressure, which may create a pressure difference between the inside and outside. The pressure relief valve 4 allows some gas to be released through the pressure relief channel 12, thus balancing the pressure difference and preventing damage to the container 15 due to excessive pressure. It also makes the lid 16 easier to open. As for the channel plug 3, during cold chain transportation, condensation will form inside the container 15 due to the temperature difference between the inside and outside of the refrigerated container 1. Opening the channel plug 3 allows this condensation to drain out of the container through the drainage channel 11, preventing water accumulation from affecting the quality of the goods and avoiding corrosion of the container due to long-term water accumulation.

[0023] Working principle and usage of this utility model:

[0024] When transporting goods, first loosen the metal latch 6 and the latch connecting plate 161 to detach the box body 15 and the lid 16. Then, stack the external transported goods on the surface of the anti-slip protrusion 14, and then relock the lid 16. At this time, the rubber sealing ring 5 mainly serves to insulate and seal. During the transportation of the refrigerated box body 1, due to changes in the external temperature, the internal temperature is reduced by the cold source element 2, resulting in a decrease in internal pressure, which may create a pressure difference between the inside and outside. The pressure relief valve 4 can use the pressure relief channel 12 to release some gas to balance this pressure difference. Moreover, due to the temperature difference between the inside and outside of the refrigerated box body 1, condensation will be generated inside the box body 15. At this time, opening the channel plug 3 can drain this condensation outside the box, preventing water accumulation from affecting the quality of the goods and avoiding corrosion of the box body due to long-term water accumulation.

[0025] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A cold chain transport box capable of adjusting internal pressure, comprising a refrigerated box body (1), characterized in that, The interior of the refrigerator body (1) is provided with several cold source components (2). The bottom side wall of the refrigerator body (1) is provided with a drainage channel (11) and a pressure relief channel (12). The outlet end of the drainage channel (11) is connected to a channel plug (3), and the outlet end of the pressure relief channel (12) is connected to a pressure relief valve (4).

2. The cold chain transport box capable of adjusting the internal pressure according to claim 1, characterized in that, The bottom sides of the refrigerated box body (1) are provided with several first clearance grooves (13), the channel plug (3) and the pressure relief valve (4) are located inside the first clearance grooves (13), and the bottom surface of the refrigerated box body (1) is provided with several anti-slip protrusions (14), and the external transported goods are stacked on the surface of the anti-slip protrusions (14).

3. The cold chain transport box capable of adjusting the internal pressure according to claim 2, characterized in that, The refrigerator body (1) includes a box body (15) and a box cover (16). The cross-section of the box body (15) and the box cover (16) are both polygonal. The surface of the box body (15) is provided with a rectangular limiting groove (151). The inside of the rectangular limiting groove (151) is provided with a silicone sealing ring (5). The box cover (16) is detachably connected to the surface of the box body (15).

4. The cold chain transport box capable of adjusting the internal pressure according to claim 3, characterized in that, The top two sides of the box (15) are provided with a number of second clearance grooves (152), and each second clearance groove (152) is provided with a metal buckle (6). The metal buckle (6) can be detachably connected to the lock hook connecting plate (161) on the side wall of the box cover (16).

5. The cold chain transport box capable of adjusting the internal pressure according to claim 4, characterized in that, The cold source element (2) is a cold storage plate, which is placed on both sides inside the box (15), and the inside of the cold storage plate is filled with cold storage agent.

6. The cold chain transport box capable of adjusting the internal pressure according to claim 5, characterized in that, The surface of the box cover (16) is provided with several stacking slots (162), and the bottom of the box body (15) is provided with several stacking bosses (154).

7. The cold chain transport box capable of adjusting the internal pressure according to claim 4, characterized in that, The box (15) has several third clearance grooves (153) on both sides of the middle part, and each of the third clearance grooves (153) has a metal handle (7) that can rotate inside.

8. The cold chain transport box capable of adjusting the internal pressure according to any one of claims 1 to 7, characterized in that, The body of the refrigerator (1) is made of low-density polyethylene.

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