Stacking stable nested structure based on barrel cover and barrel body

Abstract

The utility model discloses a based on the stacking firm nest structure of bucket cover and bucket body, include: bucket cover, its edge is provided with multistage taper flange, and the bottom is provided with recess track corresponding with multistage taper flange, wherein multistage taper flange adopts three -step design of 15 degree inclination angle, and the height difference of each level is 2mm, and multistage taper flange and recess track form the progressive mechanical interlock structure, realize the self -locking function between upper and lower container, and the utility model relates to packing container technical field. The based on the stacking firm nest structure of bucket cover and bucket body, realized the self -locking between upper and lower container, effectively prevented the slippage and dumping of container in the process of transportation or warehousing, ensured the structural integrity and safety when multilayer stacking, can bear dynamic load and not take place deformation, guaranteed the reliability under the complex transportation environment.

Description

Technical Field

[0001] This utility model relates to the field of packaging container technology, specifically to a stable nested structure based on the bucket lid and the bucket body. Background Technology

[0002] In industries such as chemicals and food, drum containers are widely used for product storage and transportation. To improve warehousing and transportation efficiency, drum containers are often stacked in multiple layers. However, existing drum containers generally suffer from poor stability during stacking. Traditional drum containers typically employ simple flat-bottomed or flanged designs, lacking an effective locking mechanism between upper and lower containers during stacking. This makes them prone to slipping, tipping over, and even product leakage and damage when subjected to bumps during transportation, uneven ground, or external impacts, severely affecting the safety and efficiency of warehousing and transportation.

[0003] For example, some existing technologies use simple bosses and grooves for mating, but their mating precision and self-locking ability are insufficient, and they are still prone to disengagement under lateral forces. Other designs attempt to increase the contact area or friction, but they are often structurally complex, have high manufacturing costs, and their stability is greatly reduced in practical applications due to material deformation or wear.

[0004] Therefore, how to design a nested structure that is simple in structure, low in manufacturing cost, and can effectively improve the stacking stability of drum containers is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a stacking and stable nesting structure based on the lid and body of the barrel, which solves the problems of complex structure, high manufacturing cost, and significant reduction in stability due to material deformation or wear in practical applications.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a stacking and stable nesting structure based on a bucket lid and a bucket body, comprising: a bucket lid with a multi-level tapered flange on its edge; and a bucket body with a groove track at its bottom corresponding to the multi-level tapered flange; The multi-stage conical flange adopts a three-stage stepped design with a 15° tilt angle, and the height difference of each stage is 2mm. The multi-stage conical flange and the groove track form a progressive mechanical interlocking structure to realize the self-locking function between the upper and lower containers.

[0007] Preferably, the fit accuracy between the flange ring of the bucket lid and the groove track at the bottom of the bucket body is ±0.1mm.

[0008] Preferably, the inner surface of the multi-stage tapered flange and the outer surface of the groove track form a contact surface, which provides a self-locking force during stacking.

[0009] Preferably, the depth of the groove track at the bottom of the barrel body matches the total height of the multi-stage tapered flange to ensure complete nesting.

[0010] Preferably, the barrel container is made of food-grade polypropylene (PP).

[0011] Beneficial effects This utility model provides a stable nested stacking structure based on the lid and body of a barrel. It has the following beneficial effects: 1. By adopting a progressive mechanical interlocking structure with a three-stage stepped flange with a 15° tilt angle and corresponding grooves, self-locking between the upper and lower containers is achieved, effectively preventing slippage and tipping of the containers during transportation or storage.

[0012] 2. Ensures structural integrity and security during multi-layer stacking.

[0013] 3. Simple structure and controllable manufacturing cost: It adopts injection molding process and ensures fitting accuracy through precision mold processing. The structure is reasonably designed, easy to mass-produce, and the cost is relatively low.

[0014] 4. Made of food-grade PP material, suitable for packaging drums in various industries such as chemical and food, improving warehousing and transportation efficiency.

[0015] 5. It can withstand dynamic loads without deformation, ensuring reliability in complex transportation environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the barrel container of this utility model; Figure 2 This is a schematic diagram of the bucket lid and bucket body structure of this utility model; Figure 3 This is a schematic diagram of the multi-stage tapered flange of this utility model; Figure 4 This is a schematic diagram of the grooved track of this utility model.

[0017] In the diagram: 100 - Barrel container; 110 - Barrel lid; 111 - Multi-stage conical flange; 111a - First-stage flange; 111b - Second-stage flange; 111c - Third-stage flange; 120 - Barrel body; 121 - Groove track; 121a - First-stage groove; 121b - Second-stage groove; 121c - Third-stage groove. Detailed Implementation

[0018] 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.

[0019] This embodiment provides a stable nested stacking structure based on the bucket lid and the bucket body, such as... Figure 1-2 As shown, it includes a lid 110 and a body 120.

[0020] The edge of the lid 110 is provided with multi-level tapered flanges 111, and the bottom of the body 120 is provided with a groove track 121 corresponding to the multi-level tapered flanges 111.

[0021] like Figure 3 As shown, the multi-stage tapered flange 111 adopts a three-stage stepped design with a 15° tilt angle, specifically including a first-stage flange 111a, a second-stage flange 111b, and a third-stage flange 111c. The height difference between each flange stage is 2mm, that is, the height of the first-stage flange 111a is 2mm higher than the second-stage flange 111b, and the height of the second-stage flange 111b is 2mm higher than the third-stage flange 111c. This stepped design gives the flange a progressive taper.

[0022] like Figure 4 As shown, the groove track 121 at the bottom of the barrel body 120 is also designed as a three-level stepped type, including a first-level groove 121a, a second-level groove 121b and a third-level groove 121c, whose shape and inclination angle are precisely matched with the multi-level conical flange 111 of the barrel lid 110.

[0023] When one drum container 100 is stacked on top of another drum container 100, the multi-stage tapered flange 111 on the lid 110 of the upper container gradually inserts into the groove track 121 at the bottom of the body 120 of the lower container. Because both the flange and the groove are designed with a 15° inclination angle, a tight contact surface is formed between the outer surface of the flange and the inner surface of the groove during insertion. This gradual insertion and contact creates a mechanical interlocking structure between the upper and lower containers, achieving a self-locking function. Specifically, when the upper container is pressed down, the inclined surface of the flange and the inclined surface of the groove create a wedge effect, tightly locking the upper and lower containers together and effectively preventing slippage or tipping when subjected to lateral forces or vibrations.

[0024] To ensure the effectiveness of this mechanical interlock, the fit between the flange ring of the lid 110 and the groove track 121 at the bottom of the barrel body 120 is ±0.1mm. This high-precision fit ensures that the flange and groove fit tightly during stacking, maximizing the self-locking effect and reducing shaking and instability caused by excessive gaps.

[0025] The depth of the groove track 121 at the bottom of the barrel body 120 matches the total height of the multi-stage tapered flange 111 to ensure that the upper and lower containers can be completely nested. Complete nesting not only provides maximum contact area and self-locking force, but also makes the overall height after stacking more compact, which is beneficial for improving storage space utilization.

[0026] In this embodiment, the barrel container 100 is made of food-grade polypropylene (PP). PP material has excellent chemical corrosion resistance, good mechanical strength and toughness, and meets food contact safety standards, making this invention suitable for industries such as chemical and food processing that have special requirements for materials.

[0027] Through the above structural design, the stable nested stacking structure of drum containers provided by this utility model can withstand dynamic loads without deformation. This means that during transportation, even if bumps or impacts occur, the containers can maintain their structural integrity and stacking stability. This structure exhibits excellent lateral resistance to displacement, ensuring the stability of the containers under heavy pressure.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 stack stable nesting structure based on the cover and body of a bucket, comprising: A barrel container, a barrel cover and a barrel body, the barrel container is made of food-grade polypropylene (PP) material, characterized in that the barrel cover edge is provided with a multi-stage tapered flange; the barrel body bottom is provided with a groove track corresponding to the multi-stage tapered flange; Wherein, the multi-stage tapered flange adopts a three-stage stepped design with a 15° inclination angle, and the height difference of each stage is 2mm, the multi-stage tapered flange and the groove track form a progressive mechanical interlocking structure, realizing the self-locking function between the upper and lower containers.

2. The stack stable nested structure based on the bucket cover and the bucket body according to claim 1, characterized in that, The matching precision between the flange ring of the barrel cover and the groove track of the barrel body bottom is ±0.1mm.

3. The stack stable nested structure based on the bucket cover and the bucket body according to claim 1, characterized in that, The inner side surface of the multi-stage tapered flange and the outer side surface of the groove track form a contact surface, which provides a self-locking force when stacking.

4. The stack stable nested structure based on the bucket cover and the bucket body according to claim 1, characterized in that, The depth of the groove track of the barrel body bottom matches the total height of the multi-stage tapered flange to ensure complete nesting.

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