A cold chain transportation of litchi cold storage box

Abstract

This utility model discloses a cold storage and insulation box for cold chain transportation of lychees, specifically relating to the field of insulation box technology. It includes a box body structure and a box lid. The box body structure comprises an inner box and an outer box, with a gap between them. A buffer mechanism, a reinforcement mechanism, and a connection mechanism are installed within this gap. The connection mechanism includes a pressure plate and supporting columns and connecting columns evenly and alternately arranged below the pressure plate. This utility model forms an insulation layer by creating a vacuum between the inner and outer box bodies. Combined with a through-slot and through-hole design, it reduces heat conduction and extends the low-temperature maintenance time. The box body adopts a rigid frame structure composed of supporting columns, connecting columns, and a half-frame plate. A bending strip buffer mechanism absorbs bottom impacts and prevents damage to the vacuum layer. The sliding plate and handle connection design secures the ice pack by its own weight. Melting water causes the ice pack to slide, increasing the utilization rate of cold energy and enhancing the box's strength during handling.

Description

Technical Field

[0001] This utility model relates to the field of insulated boxes, and in particular to a cold storage insulated box for cold chain transportation of lychees. Background Technology

[0002] The cold chain transport box for lychees primarily uses a polyurethane foam box as its core structure, achieving thermal insulation through the low thermal conductivity of the foam material. In use, lychees and ice packs are typically placed together in an internal insulated bag, which is then placed inside the foam box. The melting ice packs absorb heat to maintain a low-temperature environment, and finally, the box is sealed for transport.

[0003] The inventors have discovered at least the following problems in the prior art:

[0004] Existing cold storage and insulation boxes rely on the insulation layer of foam boxes to slow down the penetration of external heat, while supplementing the cold energy with ice packs, so as to maintain the low temperature inside the box for a short period of time during transportation. However, due to the relatively simple structure of foam boxes, their pressure resistance and strength are limited. During stacking or long-distance transportation, the box is easily deformed and damaged, and cold air leakage affects the preservation effect of lychees.

[0005] Therefore, this solution provides a cold storage and insulation box for lychee cold chain transportation to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a cold storage and insulation box for cold chain transportation of lychees, so as to solve the problems of limited pressure resistance and strength in the existing technology.

[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0008] A cold storage and insulation box for cold chain transportation of lychees includes a box body structure and a box cover. The box body structure includes an inner box and an outer box, which are distributed internally and externally. A gap exists between the outer box and the inner box, and a buffer mechanism, a reinforcement mechanism, and a plug-in mechanism are provided within the gap. The plug-in mechanism includes a pressure plate and support columns and docking columns evenly and alternately arranged below the pressure plate. The inner sides of the support columns and docking columns are fixedly connected to the outer perimeter of the inner box. The buffer mechanism includes an inner plate and an outer plate distributed vertically. The inner plate is fixedly connected to the lower part of the inner box, and multiple sets of bending strips one and two are provided between the outer plate and the inner plate. The reinforcement mechanism includes symmetrical semi-frame plates located at the upper part of the outer plate and the inner plate. Five pairs of symmetrical connecting frames are provided above each semi-frame plate. A limit plate is fixedly connected between each pair of connecting frames, and a sliding plate is slidably connected between the limit plates.

[0009] Preferably, connecting plates are provided at equal intervals between the two half-frame plates and between two adjacent connecting frames. The connecting plates are located between the supporting column and the docking column and are fixedly connected. The connecting plates have through holes.

[0010] Preferably, the supporting column and the docking column are provided with through grooves, the bottom of the half frame plate is fixedly connected to the outer plate and the inner plate, and the lower ends of the supporting column and the docking column are fixedly connected to the outer plate and the inner plate.

[0011] Preferably, a rectangular ring plate is fixedly connected to the upper end of the inner box, the outer edge of the rectangular ring plate fits the port of the outer box, and rectangular grooves are equally distributed on both sides of the rectangular ring plate. The rectangular grooves are passed through by the top of the supporting column and the docking column, and an air extraction end is provided above the rectangular ring plate.

[0012] Preferably, the second bending strip has a notch for connecting, and the first bending strip is inserted into the inside of the notch.

[0013] Preferably, an integral handle is provided on the outer side of the outer casing, and a plug block is fixedly connected to one side of the sliding plate, the plug block fitting into the inner side of the handle.

[0014] Preferably, the docking column has evenly distributed rotating holes on the side near the outer casing, and friction shafts are rotatably connected inside each rotating hole. Friction columns are inserted into the docking column, and pressure plates are fixedly connected to the top of the friction columns. The friction columns fit against the friction shafts, and evenly distributed cut-faced abutments are fixedly connected to one side of the friction columns. A threaded drill bit is fixedly connected to one end of the friction shaft.

[0015] The beneficial effects of this utility model are:

[0016] I. This utility model forms a vacuum layer by drawing air through the air extraction end through the gap between the inner and outer boxes. Combined with the air guiding design of through grooves and through holes, it achieves heat insulation. The vacuum environment reduces heat conduction, prolongs the low temperature maintenance time, and improves the preservation effect of lychees.

[0017] II. This utility model, through the coordinated operation of a buffer mechanism, a reinforcement mechanism, and a plug-in mechanism, supports the uprights, connects the uprights, and forms a rigid frame with the half-frame plate and connecting plate. In addition, the plug-in structure of the first and second bending strips absorbs the impact force from the bottom and prevents sharp objects from piercing the vacuum layer. At the same time, the rigid frame maintains the stability of the gap structure.

[0018] Third, this utility model, through the insertion of the sliding plate and the handle, allows the ice pack to be placed vertically between the inner box and the sliding plate. After the ice pack melts, it pushes the sliding plate to move, which can not only improve the utilization rate of cold energy, but also automatically fix the ice pack by its own weight, and enhance the strength of the handle during handling. Attached Figure Description

[0019] Figure 1 This is an overall perspective view of Embodiment 1 of the present utility model;

[0020] Figure 2This is a schematic diagram of the box mechanism according to Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the buffer mechanism according to Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the reinforcement mechanism according to Embodiment 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the insertion mechanism according to Embodiment 1 of this utility model;

[0024] Figure 6 This is an embodiment of the present utility model. Figure 5 Enlarged view of part A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Box body structure; 11. Outer box body; 12. Inner box body; 13. Rectangular ring plate; 14. Rectangular groove; 15. Exhaust end; 16. Handle; 2. Box lid;

[0027] 3. Buffer mechanism; 31. Outer panel; 32. Inner panel; 34. Bending strip one; 35. Bending strip two; 36. Butt joint notch;

[0028] 4. Reinforcing mechanism; 41. Semi-frame plate; 42. Connecting plate; 43. Through hole; 44. Connecting frame; 45. Limiting plate; 46. Sliding plate; 47. Insertion block;

[0029] 5. Insertion mechanism; 51. Pressure plate; 52. Support column; 53. Connecting column; 54. Through groove; 55. Rotating hole; 56. Friction column; 57. Cutting block; 58. Friction shaft; 59. Threaded drill bit. Detailed Implementation

[0030] Please refer to the following. Figures 1 to 6 As shown, the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0032] This utility model provides a cold storage and heat preservation box for cold chain transportation of lychees, including a box body mechanism 1 and a box cover 2. The box body mechanism 1 includes an inner box body 12 and an outer box body 11 distributed inside and outside. There is a gap between the outer box body 11 and the inner box body 12. A buffer mechanism 3, a reinforcement mechanism 4 and a plug-in mechanism 5 are provided in the gap.

[0033] The insertion mechanism 5 includes a pressure plate 51 and support columns 52 and docking columns 53 that are evenly and alternately arranged below the pressure plate 51. The inner sides of the support columns 52 and docking columns 53 are fixedly connected to the outer periphery of the inner box 12.

[0034] The buffer mechanism 3 includes an inner plate 32 and an outer plate 31 distributed vertically. The inner plate 32 is fixedly connected to the bottom of the inner box 12. Multiple sets of bending strips 34 and bending strips 35 are provided between the outer plate 31 and the inner plate 32.

[0035] The reinforcement mechanism 4 includes symmetrical half-frame plates 41 located at the upper ends of the outer plate 31 and the inner plate 32. Five pairs of left and right symmetrical connecting frames 44 are provided above each half-frame plate 41. A limit plate 45 is fixedly connected between each pair of connecting frames 44, and a sliding plate 46 is slidably connected between the limit plates 45.

[0036] The buffer mechanism 3, the reinforcement mechanism 4, and the insertion mechanism 5, as well as their respective components, are all made of PP plastic.

[0037] In a further embodiment, connecting plates 42 are provided at equal intervals between the two half-frame plates 41 and between two adjacent connecting frames 44. The connecting plates 42 are located between the supporting column 52 and the docking column 53 and are fixedly connected. The connecting plates 42 have through holes 43.

[0038] In this embodiment, the half-frame plate 41, the connecting plate 42, and the connecting frame 44, together with the supporting column 52 and the docking column 53, form a mesh support, which can increase the strength of the outer box 11 and the inner box 12, and also prevent the outer box 11 and the inner box 12 from being damaged by external pressure during vacuuming.

[0039] In a further embodiment, the supporting column 52 and the docking column 53 are provided with through grooves 54, the bottom of the half frame plate 41 is fixedly connected to the outer plate 31 and the inner plate 32, and the lower ends of the supporting column 52 and the docking column 53 are fixedly connected to the outer plate 31 and the inner plate 32.

[0040] In this embodiment, both the through groove 54 and the through hole 43 are used to maintain the flow at the gap when air is drawn from the air extraction end 15.

[0041] In a further embodiment, a rectangular ring plate 13 is fixedly connected to the upper end of the inner box 12. The outer edge of the rectangular ring plate 13 fits the port of the outer box 11 and has a sealing strip. Equally spaced rectangular grooves 14 are provided on both sides of the rectangular ring plate 13. The rectangular grooves 14 are passed through by the top of the supporting column 52 and the docking column 53. An air extraction end 15 is provided above the rectangular ring plate 13.

[0042] In this embodiment, the pressure plate 51 is located above the rectangular ring plate 13, and there is a groove below the box cover 2 that fits the pressure plate 51. There is also a rubber pad above the pressure plate 51. After being pressed down, the pressure plate 51 can act as a seal between the rectangular ring plate 13 and the box cover 2.

[0043] In a further embodiment, the second bending strip 35 has a mating notch 36, and the first bending strip 34 is inserted into the inside of the mating notch 36.

[0044] In this embodiment, the interlocking of the outer plate 31 and inner plate 32 with the first bending strip 34 and the second bending strip 35 can increase the strength of the bottom; the whole outer plate 31 can buffer when the bottom is impacted or punctured and prevent leakage of the vacuum area between the outer box 11 and the inner box 12.

[0045] In a further embodiment, an integral handle portion 16 is provided on the outer side of the outer casing 11, and a plug block 47 is fixedly connected to one side of the sliding plate 46, the plug block 47 fitting into the inner side of the handle portion 16.

[0046] In this embodiment, the handle 16 is the handle of an existing polyurethane foam box. There is a gap between the inner side of the sliding plate 46 and the inner box 12. The gap can be used to place an ice pack. When the ice pack is first placed in, it is vertical. As it melts and its own weight pushes the sliding plate 46 to move.

[0047] In a further embodiment, the docking column 53 has evenly distributed rotating holes 55 on the side near the outer casing 11. Each rotating hole 55 is rotatably connected to a friction shaft 58. A friction column 56 is inserted into the docking column 53. A pressure plate 51 is fixedly connected to the top of the friction column 56. The friction column 56 fits against the friction shaft 58. An evenly distributed cut-faced abutment block 57 is fixedly connected to one side of the friction column 56. A threaded drill bit 59 is fixedly connected to one end of the friction shaft 58.

[0048] In this embodiment, the outer surfaces of the friction column 56 and the friction shaft 58 are both frosted. Therefore, when the friction column 56 moves down, the friction shaft 58 will rotate with the threaded drill bit 59. Combined with the downward movement of the cutting block 57, the friction shaft 58 can move towards the outer housing 11 during the rotation process, thereby connecting the outer housing 11 and the inner housing 12.

[0049] The working principle of this utility model is as follows:

[0050] When in use, first insert the inner box 12 halfway into the outer box 11 so that the upper end of the sliding plate 46 is flush with the outer box 11. Then place the ice pack between the inner box 12 and the handle 16, and then put the inner box 12 down. At this time, the ice pack will push the sliding plate 46 under its own weight so that the plug block 47 is plugged into the inside of the handle 16, thereby increasing the strength of the handle 16 and preventing the foam of the handle 16 from being damaged during transportation.

[0051] After the inner housing 12 is completely placed inside the outer housing 11, and the lower end of the rectangular ring plate 13 is tightly fitted with the upper end of the outer housing 11, the pressure plate 51 can be pressed to move the friction column 56 inside the docking column 53 downwards, thereby generating friction with the friction shaft 58, causing the friction shaft 58 and the thread drill bit 59 to rotate. As the friction column 56 moves downwards, the cutting surface block 57 also moves downwards simultaneously, pushing the rotating friction shaft 58 outwards, thus causing the thread drill bit 59 to spirally insert into the inner wall of the outer housing 11, completing the installation of the outer housing 11 and the inner housing 12. Then, by connecting the vacuum pump to the air extraction end 15, the air in the gap between the outer box 11 and the inner box 12 is extracted. During the extraction process, the support column 52, the docking column 53, the connecting plate 42, the half frame plate 41 and the connecting frame 44 will support the gap, which will not only ensure the support strength and prevent the pressure from causing collapse, but also extract air through the through slots 54 opened in the support column 52 and the docking column 53 and the through holes 43 opened in the connecting plate 42, so that the gap is in a vacuum state. In addition, the ice pack placed on one side of the sliding plate 46 can further improve the cold storage effect and heat insulation.

[0052] Finally, the lychees and some ice packs can be placed in an insulated bag. After sealing, the insulated bag is placed inside the inner box 12, and the lid 2 is closed and connected with tape. If there is a sharp bump at the bottom during transportation, the outer panel 31 can block it. The impact force during the bump can be absorbed by multiple sets of bending strips 34 and 35 arranged at equal intervals in the gap between the outer panel 31 and the inner panel 32. This can not only prevent the vacuum area from becoming unstable due to the bump at the bottom, but also provide cushioning.

[0053] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A cold chain transportation of litchi cold storage box, comprising box body mechanism (1) and box cover (2), characterized by, The box mechanism (1) includes an inner box (12) and an outer box (11) distributed inside and outside. There is a gap between the outer box (11) and the inner box (12). A buffer mechanism (3), a reinforcement mechanism (4) and a plug-in mechanism (5) are provided in the gap. The insertion mechanism (5) includes a pressure plate (51) and support columns (52) and docking columns (53) evenly and alternately arranged below the pressure plate (51). The inner sides of the support columns (52) and docking columns (53) are fixedly connected to the outer periphery of the inner box (12). The buffer mechanism (3) includes an inner plate (32) and an outer plate (31) distributed vertically. The inner plate (32) is fixedly connected to the bottom of the inner box (12). Multiple sets of bending strips one (34) and bending strip two (35) are provided between the outer plate (31) and the inner plate (32). The reinforcement mechanism (4) includes a symmetrical half-frame plate (41) located on the upper end of the outer plate (31) and the inner plate (32). Five pairs of left and right symmetrical connecting frames (44) are provided above each half-frame plate (41). A limiting plate (45) is fixedly connected between each pair of connecting frames (44), and a sliding plate (46) is slidably connected between the limiting plates (45).

2. The cold-chain transportation cold storage box for lychee according to claim 1, characterized in that: A connecting plate (42) is provided between the two half-frame plates (41) and between the two adjacent connecting frames (44). The connecting plate (42) is located between the supporting column (52) and the docking column (53) and is fixedly connected. The connecting plate (42) has a through hole (43).

3. The cold-chain transportation cold storage box of litchi according to claim 1, characterized in that: The supporting column (52) and the docking column (53) are provided with through grooves (54). The bottom of the half frame plate (41) is simultaneously fixedly connected to the outer plate (31) and the inner plate (32). The lower ends of the supporting column (52) and the docking column (53) are fixedly connected to the outer plate (31) and the inner plate (32).

4. The cold-chain transportation cold storage box of litchi according to claim 1, characterized in that: A rectangular ring plate (13) is fixedly connected to the upper end of the inner box (12). The outer edge of the rectangular ring plate (13) fits the port of the outer box (11). Equally spaced rectangular grooves (14) are provided on both sides of the rectangular ring plate (13). The top of the rectangular grooves (14) are passed through by the support column (52) and the docking column (53). An air extraction end (15) is provided above the rectangular ring plate (13).

5. The cold-chain transport cold storage and insulation box of litchi according to claim 1, characterized in that: The second bending strip (35) has a butt joint (36), and the first bending strip (34) is inserted into the inside of the butt joint (36).

6. The cold-chain transportation cold storage box of litchi according to claim 1, characterized in that: An integral handle (16) is provided on the outer side of the outer casing (11), and a plug block (47) is fixedly connected to one side of the sliding plate (46), the plug block (47) fitting into the inner side of the handle (16).

7. The cold-chain transportation cold storage box of litchi according to claim 1, characterized in that: The docking column (53) has evenly distributed rotating holes (55) on the side near the outer casing (11). The rotating holes (55) are all rotatably connected to friction shafts (58). A friction column (56) is inserted into the docking column (53). A pressure plate (51) is fixedly connected to the top of the friction column (56). The friction column (56) fits against the friction shaft (58). Evenly distributed cut-faced abutments (57) are fixedly connected to one side of the friction column (56). A threaded drill bit (59) is fixedly connected to one end of the friction shaft (58).

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