Stacked blister box with high load capacity

Abstract

This utility model relates to the field of stackable blister packaging technology, specifically a stackable blister packaging with strong load-bearing capacity. It includes a shell with a receiving opening. The bottom wall of the receiving opening protrudes upwards to form an inner stacking protrusion, and the bottom of the shell is recessed upwards to form an outer stacking groove. Several locking grooves are spaced apart circumferentially on the inner stacking protrusion, and locking blocks corresponding to the locking grooves are spaced apart on the side wall of the outer stacking groove. The locking blocks are adapted to be elastically inserted and engaged in the locking grooves. This utility model presses the bottom of the upper shell downwards into the receiving opening of the lower shell, making the upper and lower shells interlock as one unit, preventing loosening and slippage after multiple shells are stacked. Even when grasping the upper shell during handling, the locking force formed between the locking blocks and the locking grooves is sufficient to resist the pulling force of separation between the upper and lower layers, allowing the entire stacked shell to be lifted as a whole, avoiding the shell scattering caused by the separation and detachment of the upper and lower layers.

Description

Technical Field

[0001] This utility model relates to the field of stackable blister box technology, specifically a stackable blister box with strong load-bearing capacity. Background Technology

[0002] Blister boxes are packaging containers made by heating and softening plastic sheets using a vacuum forming process, then cooling them onto a mold surface. They have advantages such as low cost, high production efficiency, and good transparency, and are widely used in the packaging and display of food, electronic products, medical devices, daily necessities, and other fields.

[0003] To improve warehousing and transportation efficiency, blister packs are usually stacked. However, existing stackable blister packs generally suffer from poor interlocking when stacked.

[0004] During the handling and transportation of blister packs, operators often habitually grab the top blister pack. However, due to insufficient bonding strength between the layers of multiple blister packs, the upper and lower layers may separate and detach. Therefore, this invention aims to provide a stackable blister pack with strong load-bearing capacity that prevents the upper and lower layers of blister packs from easily separating and detaching when handling multiple stacked blister packs. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a stackable blister pack with strong load-bearing capacity, which prevents the upper and lower layers from easily separating and falling off when operators grab multiple upper blister packs, thus solving the problem of easy separation and falling off between upper and lower layers when grabbing multiple blister packs in existing technologies.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides a stackable blister box with strong load-bearing capacity, including a shell with a receiving opening. The bottom wall of the receiving opening protrudes upward to form an inner stacked protrusion, and the bottom of the shell is recessed upward to form an outer stacked groove. A plurality of snap-fit ​​grooves are spaced apart along the circumference of the inner stacked protrusion, and snap-fit ​​blocks corresponding to the snap-fit ​​grooves are spaced apart on the side wall of the outer stacked groove. The snap-fit ​​blocks are adapted to be elastically inserted and engaged in the snap-fit ​​grooves.

[0009] Optionally, a snap-fit ​​post is provided on each side of the snap-fit ​​groove, and an embedding groove is provided on each side of the snap-fit ​​block to facilitate the snap-fit ​​post's movement in and out. The snap-fit ​​post is adapted to be pluggably inserted into the embedding groove.

[0010] Optionally, the snap-fit ​​post has a flexible structure.

[0011] Optionally, a limiting ring is fixed on the peripheral sidewall of the housing, and a plurality of plastic reinforcements are connected between the limiting ring and the housing at intervals.

[0012] Optionally, the limiting ring is located at the edge of the receiving opening.

[0013] Optionally, the number of plastic reinforcements is configured to be 25.

[0014] Optionally, the plastic reinforcement is distributed at equal intervals along the circumference of the housing.

[0015] Optionally, the number of the card slots is configured to be 25.

[0016] Optionally, the snap-fit ​​grooves are evenly distributed along the circumference of the inner layer protrusions.

[0017] Optionally, the depth of the outer stacked groove is sufficient to accommodate at least a portion of the inner stacked protrusion.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a stackable blister box with strong load-bearing capacity, which has the following beneficial effects:

[0020] 1. This utility model presses the bottom of the upper shell downward into the receiving opening of the lower shell, so that the upper and lower shells are interlocked as one, preventing loosening and slippage after multiple shells are stacked. Even when the upper shell is grasped during transportation, the interlocking force formed between the interlocking block and the interlocking groove is sufficient to resist the pulling force of the upper and lower layers separating, so that the entire stack of shells can be lifted as a whole, avoiding the shells from falling off due to the separation of the upper and lower shells.

[0021] 2. By setting a limiting ring and a plastic reinforcement part, the plastic reinforcement part connects the limiting ring 9 to the shell 1 and transmits the load, thereby enhancing the overall rigidity and deformation resistance of the shell;

[0022] 3. By setting the limiting ring at the edge of the receiving opening, when the upper shell is pressed into the lower shell, the limiting ring can limit the bottom edge of the upper shell. At the same time, the limiting ring also disperses and transmits the pressure from the upper shell, preventing the edge of the receiving opening from deforming due to concentrated force. Attached Figure Description

[0023] Figure 1 A three-dimensional cross-sectional structural diagram of the present invention is shown;

[0024] Figure 2 It shows Figure 1 A magnified structural diagram at point B;

[0025] Figure 3 A three-dimensional structural schematic diagram of the present invention is shown;

[0026] Figure 4 A three-dimensional structural diagram of the present invention when stacked is shown;

[0027] Figure 5 A top view of the present invention is shown;

[0028] Figure 6 It shows Figure 5 A magnified structural diagram at point A.

[0029] In the figure: 1. Shell; 2. Receiving port; 3. Inner layered protrusion; 4. Outer layered groove; 5. Snap-fit ​​groove; 6. Snap-fit ​​block; 7. Snap-fit ​​post; 8. Embedded groove; 9. Limiting ring; 10. Plastic reinforcement. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example: Please refer to Figures 1 to 6 According to an embodiment of the present invention, a technical solution is provided: a stackable blister box with strong load-bearing capacity, including a shell 1 with a receiving opening 2, the bottom wall of the receiving opening 2 protruding upward to form an inner stacked protrusion 3, the bottom of the shell 1 being recessed upward to form an outer stacked groove 4, a plurality of snap-fit ​​grooves 5 are spaced apart along the circumference of the inner stacked protrusion 3, and snap-fit ​​blocks 6 corresponding to the snap-fit ​​grooves 5 are spaced apart on the side wall of the outer stacked groove 4, the snap-fit ​​blocks 6 being adapted to be elastically inserted and snapped into the snap-fit ​​grooves 5.

[0032] The stackable blister pack with the above-described structure has a high load-bearing capacity. When the shells 1 need to be stacked for use, firstly, the bottom of the upper shell 1 is pressed downwards into the receiving opening 2 of the lower shell 1. At this time, the outer stacking groove 4 at the bottom of the upper shell 1 and the inner stacking protrusion 3 at the top of the lower shell 1 interlock. The snap-fit ​​block 6 on the side wall of the outer stacking groove 4 is aligned with the snap-fit ​​groove 5 on the inner stacking protrusion 3 and force is applied downwards. Under the force, the snap-fit ​​block 6 undergoes elastic deformation and gradually inserts into the snap-fit ​​groove 5. After the snap-fit ​​block 6 is fully inserted into the snap-fit ​​groove 5, it returns to its original position. The snap-fit ​​block 6 engages with the inner wall of the snap-fit ​​groove 5, making the upper and lower shells 1 interlock as one unit. This prevents the shells from loosening or slipping after being stacked. Even when the upper shell 1 is grabbed during transportation, the snap-fit ​​force formed between the snap-fit ​​block 6 and the snap-fit ​​groove 5 is sufficient to resist the pulling force of the upper and lower layers separating, so that the entire stack of shells 1 can be lifted as a whole, avoiding the shells 1 from falling apart due to the separation of the upper and lower layers. Of course, when it is necessary to separate the upper and lower layers, sufficient pull-out force can be applied to make the snap-fit ​​block 6 come out of the snap-fit ​​groove 5.

[0033] In this embodiment, a snap-fit ​​post 7 is provided on each side of the snap-fit ​​groove 5, and an insertion groove 8 is provided on each side of the snap-fit ​​block 6 to facilitate the movement of the snap-fit ​​post 7. The snap-fit ​​post 7 is suitable for being inserted into the insertion groove 8 in a pluggable manner. When the snap-fit ​​block 6 is inserted into the snap-fit ​​groove 5, the insertion grooves 8 on both sides of the snap-fit ​​block 6 are aligned with the snap-fit ​​posts 7 on both sides of the snap-fit ​​groove 5. As the snap-fit ​​block 6 continues to be inserted, the snap-fit ​​post 7 gradually enters the insertion groove 8 and forms an interference fit with the inner wall of the insertion groove 8. The snap-fit ​​post 7 exerts an outward squeezing force on the inner wall of the insertion groove 8, while the inner wall of the insertion groove 8 exerts an inward clamping force on the snap-fit ​​post 7, thus forming a stable snap-fit ​​connection.

[0034] In this embodiment, the snap-fit ​​post 7 has a flexible structure. This design allows the snap-fit ​​post 7 to undergo elastic deformation during insertion into the embedding groove 8, facilitating its smooth entry into the embedding groove 8. After being snapped into place, the snap-fit ​​post 7 returns to its original shape due to its elasticity and fits against the inner wall of the embedding groove 8, generating sufficient clamping force to maintain a stable connection. This avoids the insertion difficulties or damage to the snap-fit ​​groove 5 that may be caused by the rigid snap-fit ​​post 7.

[0035] In this embodiment, a limiting ring 9 is fixed on the peripheral side wall of the shell 1, and a plurality of plastic reinforcement parts 10 are connected between the limiting ring 9 and the shell 1 at intervals. The plastic reinforcement parts 10 connect the limiting ring 9 to the shell 1 and transfer the load, thereby enhancing the overall rigidity and deformation resistance of the shell 1. This makes it less likely for the shell 1 to deform or collapse when bearing the weight of the upper layer, and improves the load-bearing performance when multiple shells 1 are stacked.

[0036] In this embodiment, the limiting ring 9 is located at the edge of the receiving port 2. When the upper shell 1 is pressed into the lower shell 1, the limiting ring 9 can limit the bottom edge of the upper shell 1. At the same time, the limiting ring 9 also disperses and transmits the pressure from the upper shell 1, preventing the edge of the receiving port 2 from deforming due to concentrated force.

[0037] In this embodiment, the number of plastic reinforcement parts 10 is configured to be 25. This number setting ensures that there are sufficiently dense support points along the circumference of the shell 1 to enhance the overall structural strength, while avoiding excessive reinforcement parts that would lead to increased material consumption and production costs. Practical verification has shown that 25 plastic reinforcement parts 10 can form a uniform force transmission path along the circumference of the shell 1.

[0038] In this embodiment, the plastic reinforcement 10 is evenly distributed along the circumference of the shell 1. This arrangement ensures that the connection points between the limiting ring 9 and the shell 1 are evenly distributed on the entire circumference. When subjected to force, each plastic reinforcement 10 bears a basically equal load, avoiding structural weak points caused by local stress concentration and ensuring that the shell 1 has balanced strength and stiffness in all directions.

[0039] In this embodiment, the number of snap-fit ​​grooves 5 is configured to be 25; the snap-fit ​​grooves 5, which match the number of plastic reinforcement parts 10, form sufficient snap-fit ​​points in the circumferential direction of the inner layer overlapping protrusions 3, so that a multi-point firm connection is established between the upper and lower shells 1.

[0040] In this embodiment, the snap-fit ​​grooves 5 are evenly distributed along the circumference of the inner layer protrusions 3; this arrangement ensures that the snap-fit ​​force is evenly distributed on the circumference of the inner layer protrusions 3, avoiding the snap-fit ​​force being too weak in one direction, which would cause that point to become a weak link for separation.

[0041] In this embodiment, the recess depth of the outer stacked groove 4 can accommodate at least part of the inner stacked protrusion 3; this setting allows the inner stacked protrusion 3 to be embedded in the outer stacked groove 4 during stacking to form a preliminary positioning, which is combined with the elastic engagement of the snap-fit ​​block 6 and the snap-fit ​​groove 5.

[0042] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0043] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stackable blister box with high load-bearing capacity, characterized in that, The housing (1) includes a receiving opening (2), the bottom wall of the receiving opening (2) protrudes upward to form an inner stacked protrusion (3), the bottom of the housing (1) is recessed upward to form an outer stacked groove (4), a plurality of snap-fit ​​grooves (5) are spaced apart along the circumference of the inner stacked protrusion (3), and snap-fit ​​blocks (6) corresponding to the snap-fit ​​grooves (5) are spaced apart on the side wall of the outer stacked groove (4), and the snap-fit ​​blocks (6) are adapted to be elastically inserted and snapped into the snap-fit ​​grooves (5).

2. The stackable blister box with high load-bearing capacity according to claim 1, characterized in that: A snap-fit ​​post (7) is provided on each side of the snap-fit ​​groove (5), and an embedding groove (8) is provided on each side of the snap-fit ​​block (6) to facilitate the snap-fit ​​post (7) to move in and out. The snap-fit ​​post (7) is suitable for being pluggably inserted into the embedding groove (8).

3. A stackable blister box with high load-bearing capacity according to claim 2, characterized in that: The snap-fit ​​post (7) has a flexible structure.

4. A stackable blister box with high load-bearing capacity according to claim 1, characterized in that: A limiting ring (9) is fixed on the peripheral side wall of the housing (1), and a plurality of plastic reinforcement parts (10) are connected between the limiting ring (9) and the housing (1) at intervals.

5. A stackable blister box with high load-bearing capacity according to claim 4, characterized in that: The limiting ring (9) is located at the edge of the receiving port (2).

6. A stackable blister box with high load-bearing capacity according to claim 4, characterized in that: The number of the plastic reinforcement (10) is configured to be 25.

7. A stackable blister box with high load-bearing capacity according to claim 6, characterized in that: The plastic reinforcement (10) is distributed at equal intervals along the circumference of the shell (1).

8. A stackable blister box with high load-bearing capacity according to claim 1, characterized in that: The number of the card slots (5) is configured to be 25.

9. A stackable blister box with high load-bearing capacity according to claim 8, characterized in that: The snap-fit ​​grooves (5) are evenly distributed along the circumference of the inner layer protrusions (3).

10. A stackable blister box with high load-bearing capacity according to claim 1, characterized in that: The depth of the outer stacked groove (4) is sufficient to accommodate at least a portion of the inner stacked protrusion (3).

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