A plastic food packaging can

Through a triple-fixed structure and cushioning design, the problem of egg shaking and collision in traditional egg packaging is solved, achieving stable positioning and impact protection for the egg.

CN224393408UActive Publication Date: 2026-06-23QINGDAO SENFENG PLASTICS PACKING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO SENFENG PLASTICS PACKING CO LTD
Filing Date
2025-08-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional egg packaging cannot achieve dual fixation in both horizontal and vertical directions, causing eggs to easily shake, shift, or even collide with each other during transportation or handling, resulting in eggshell damage.

Method used

It adopts a triple fixing structure, including a bottom egg-holding rubber block, a cross-shaped egg-limiting rubber clip, and a top egg-protecting sleeve. Combined with the bottom and top buffer structures, it achieves stable positioning and buffer protection of the egg through elastic elements.

Benefits of technology

It effectively prevents eggs from shaking and colliding during transportation, reduces the probability of breakage, and improves the stability and safety of packaging.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224393408U_ABST
    Figure CN224393408U_ABST
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Abstract

The utility model provides a kind of plastic food packaging jar, it is related to packaging jar technical field, including egg storage bucket body, the inside wall of egg storage bucket body is formed inside support ring along circumferential convex, the upper surface of inside support ring is loaded with egg placing assembly, the egg placing assembly includes bottom buffer seat and top fixed cover, the upper surface of bottom buffer seat is along vertical direction and is equipped with several bottom buffer grooves.The utility model in which three fixed structures of bottom holding plus middle clamping plus top limiting are realized the stable positioning of egg, the egg holding rubber block arc groove of bottom egg holding rubber block is consistent with egg bottom, provides bottom support, cross-shaped egg card joint elasticity of middle layer egg body limiting rubber card is wrapped egg middle part, limit horizontal direction shake, top egg protection sleeve is consistent with egg top, avoid vertical direction deviation, the synergistic effect of three, as far as possible solve the problem that egg is easy to shake, collide in traditional packaging.
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Description

Technical Field

[0001] This utility model relates to the field of packaging can technology, specifically to a plastic food packaging can. Background Technology

[0002] In the food packaging industry, eggs, as fragile fresh food, are highly susceptible to damage, and the protective performance and securing effect of their packaging containers directly affect their integrity during transportation and storage. Current technologies often employ simple cardboard or plastic boxes, relying solely on internal grooves for initial egg placement. This presents several key problems: the grooves in traditional packaging only provide basic positioning and cannot achieve dual horizontal and vertical fixation. During transportation or handling, eggs are prone to shaking, shifting, or even colliding with each other, leading to shell breakage.

[0003] In response to the shortcomings of traditional egg packaging, there is an urgent need for an egg packaging container with fixed and multi-directional cushioning and shock absorption functions to solve the problem of egg breakage during transportation and storage, and improve the practicality and reliability of the packaging. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings existing in the technical field described in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plastic food packaging can, comprising an egg storage tank body, wherein an inner support ring is formed by a circumferential protrusion on the inner sidewall of the egg storage tank body, and an egg placement assembly is supported on the upper surface of the inner support ring. The egg placement assembly includes a bottom buffer seat and a top fixed cover. The upper surface of the bottom buffer seat is provided with a plurality of bottom buffer grooves in the vertical direction. A lower telescopic support rod and a lower shock-absorbing spring sleeved on the outside of the lower telescopic support rod are fixedly connected to the bottom of each bottom buffer groove. The top end of the lower telescopic support rod extends vertically upward and is fixedly connected with a bottom egg-holding rubber block. A middle layer positioning rubber plate is laid on the top end face of the bottom buffer seat. The upper surface of the middle layer positioning rubber plate is provided with grooves corresponding to the positions of each bottom egg-holding rubber block. An egg-body limiting rubber clip is embedded and fixed in each groove. A cross-shaped egg clip slot is provided through the upper surface of the egg-body limiting rubber clip.

[0006] Preferably, the upper surface of the bottom buffer seat has several holes in the vertical direction, and the lower surface of the top fixed cover is fixedly connected with a positioning rod corresponding to each hole. The positioning rod extends downward in the vertical direction and is inserted and pulled into the corresponding hole to realize the detachable connection between the top fixed cover and the bottom buffer seat.

[0007] Preferably, the upper surface of the top fixed cover is provided with a plurality of second circular grooves in the vertical direction. The bottom of each second circular groove is fixedly connected to an upper shock-absorbing spring. The top end of the upper shock-absorbing spring extends upward in the vertical direction and is fixedly connected to a top buffer rubber platform. The lower surface of the top buffer rubber platform is fixedly connected to a sleeve-shaped top egg protector at the position corresponding to each second circular groove. The top egg protector extends downward in the vertical direction and extends into the corresponding second circular groove. The inner side wall of the top egg protector fits and adheres to the top outer wall of the egg.

[0008] Preferably, a lifting handle is formed by protruding vertically upwards from the center of the upper surface of the top buffer platform, and the lifting handle is used by the user to hold and lift the entire egg placement assembly.

[0009] Preferably, the upper surface of the bottom egg-holding adhesive block is recessed downward in the vertical direction to form an arc groove, and the inner sidewall of the arc groove fits and adheres to the bottom outer wall of the egg to provide support and limit the bottom of the egg.

[0010] Preferably, the outer diameter of the egg-body limiting adhesive clip is larger than the maximum outer diameter of the egg, and the inner wall contour of the cross-shaped egg clip seam matches the middle outer wall contour of the egg, allowing the egg to pass through the cross-shaped egg clip seam vertically and engage with the egg-body limiting adhesive clip.

[0011] Preferably, the upper part of the outer side wall of the egg storage bucket is provided with an external thread along the circumference. The external thread is used to connect with the inner side wall of the sealing lid to achieve the sealing of the top opening of the egg storage bucket by the sealing lid. Two portable handles are symmetrically arranged in the middle of the outer side wall of the egg storage bucket. The portable handles are used for users to hold and move the egg storage bucket.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] The egg is stably positioned by a triple-fixing structure consisting of bottom support, middle clamping, and top limiting. The bottom egg-supporting rubber block has an arc groove that fits the bottom of the egg, providing bottom support. The cross-shaped egg-limiting rubber block in the middle layer elastically wraps around the middle of the egg, limiting horizontal shaking. The top egg-protecting sleeve fits the top of the egg to prevent vertical displacement. The three work together to solve the problem of eggs easily shaking and colliding in traditional packaging as much as possible.

[0014] The innovative design incorporates bottom and top cushioning structures. When the packaging is subjected to external impact, the bottom cushioning structure uses the compression and rebound of the lower shock-absorbing spring to offset the impact force from the bottom, while the top cushioning structure uses the elastic deformation of the upper shock-absorbing spring to weaken the impact force from the top. This creates cushioning protection from both the top and bottom of the egg, significantly reducing the probability of damage to the egg from impacts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall disassembled structure of the egg placement component of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of the sleeve of this utility model.

[0019] Legend:

[0020] 1. Egg storage container body; 2. Bottom buffer seat; 3. Bottom buffer groove; 4. Lower telescopic support rod; 5. Lower shock-absorbing spring; 6. Bottom egg-holding rubber block; 7. Middle layer positioning rubber plate; 8. Top fixing cover; 9. Top buffer rubber platform; 10. Upper shock-absorbing spring; 11. Top egg protection sleeve; 12. Lifting protrusion handle; 13. Positioning insertion rod; 14. Sealing container lid; 101. External thread of the container body; 102. Portable handle; 103. Internal support ring; 61. Arc groove of the egg-holding rubber block; 71. Egg body limiting rubber clip; 72. Cross-shaped egg clip seam. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] Example 1, such as Figures 1-4As shown, this utility model provides a technical solution: The core of this plastic food packaging can is to achieve stable storage and impact protection of eggs through a three-layer structure of egg storage barrel body, egg placement component, and sealing lid. First, confirm that the internal support ring 103 of the inner side wall of the egg storage barrel body 1 is not deformed and its levelness meets the requirements of stable bearing of the egg placement component. At the same time, check the connection strength between the portable handle 102 on the outer side wall of the egg storage barrel body 1 and the barrel body to ensure that there is no loosening during transportation. The external thread 101 of the barrel body on the upper part of the outer side wall is free of burrs to avoid jamming when assembling with the sealing lid 14 later. First, place the bottom buffer seat 2 horizontally on the upper surface of the inner support ring 103, ensuring that the bottom buffer seat 2 is coaxial with the egg storage tank body 1, thus guaranteeing even force distribution on subsequent components. Next, lay the middle layer positioning rubber plate 7 on the top end face of the bottom buffer seat 2, ensuring that each slot on the middle layer positioning rubber plate 7 corresponds one-to-one with the bottom buffer slot 3 on the bottom buffer seat 2. Then, insert the egg body limiting rubber clip 71 into each slot, pressing it until it is flush with the upper surface of the middle layer positioning rubber plate 7, ensuring that the cross-shaped egg clip seam 72 of the egg body limiting rubber clip 71 is vertical. Then, insert the egg along the vertical direction... Passing the cross-shaped egg clip 72 from top to bottom until the bottom of the egg is completely fitted with the arc groove 61 of the egg-holding rubber block 6, the egg-body limiting rubber clip 71 wraps around the middle of the egg due to its own elasticity, thus limiting the egg in the horizontal direction. Finally, align the positioning pin 13 of the top fixing cover 8 with the insertion hole of the bottom buffer seat 2 and insert it vertically downwards until the lower surface of the top fixing cover 8 contacts the upper surface of the middle positioning rubber plate 7. At the same time, ensure that the top egg protector 11 at the bottom of the top buffer rubber platform 9 is completely fitted onto the top of the egg, completing the assembly of the egg placement component and the egg. Align the sealing bucket lid 14 with the top opening of the egg storage bucket body 1, and rotate the sealing bucket lid 14 to engage the inner wall of the sealing bucket lid 14 with the external thread 101 of the bucket body until the lower surface of the sealing bucket lid 14 is tightly fitted with the top end face of the egg storage bucket body 1, thus sealing the entire packaging can.

[0023] Each bottom buffer groove 3 on the bottom buffer seat 2 integrates a lower telescopic support rod 4 and a lower shock-absorbing spring 5. The lower shock-absorbing spring 5 is sleeved on the outside of the lower telescopic support rod 4, and the top of both are connected to the bottom egg-carrying rubber block 6, forming a linkage structure. When the bottom of the egg storage bucket 1 is subjected to external impact, the impact force is transmitted along the egg storage bucket 1 to the bottom buffer seat 2, and then acts on the lower shock-absorbing spring 5 and the lower telescopic support rod 4 in the bottom buffer groove 3. At this time, the lower telescopic support rod 4 retracts vertically, the lower shock-absorbing spring 5 is compressed and generates a reverse rebound force, which is transmitted to the bottom of the egg through the bottom egg-carrying rubber block 6, offsetting part of the impact force. At the same time, the egg-carrying rubber block arc groove 61 of the bottom egg-carrying rubber block 6 further disperses the force on the bottom of the egg due to the elastic deformation of the rubber material, avoiding excessive local pressure that could cause the egg to break. After the impact disappears, the lower shock-absorbing spring 5 returns to its original length, driving the lower telescopic support rod 4 and the bottom egg-carrying rubber block 6 to reset and return to the initial support state. A middle-layer positioning rubber plate 7 covers the top of the bottom buffer seat 2. An egg-shaped limiting rubber clip 71 is embedded and fixed within the groove of the middle-layer positioning rubber plate 7. A cross-shaped egg clip slot 72 runs through the upper and lower surfaces of the egg-shaped limiting rubber clip 71. When the egg passes through the cross-shaped egg clip slot 72, the rubber material of the egg-shaped limiting rubber clip 71 expands elastically due to the egg's pressure. After the bottom of the egg adheres to the arc groove 61 of the egg-holding block, the egg-shaped limiting rubber clip 71 returns to its original shape and tightly wraps around the center of the egg. On one hand, the outline of the cross-shaped egg clip slot 72 restricts the egg from wobbling or shifting horizontally. On the other hand, the outer diameter of the egg-shaped limiting rubber clip 71 is larger than the maximum outer diameter of the egg, preventing collisions between adjacent eggs. It also provides auxiliary support for the egg in the vertical direction, forming a dual positioning system with the bottom egg-holding block 6 and the middle clip.

[0024] The top fixing cover 8 is connected and fixed to the bottom buffer seat 2 via the positioning rod 13. An upper shock-absorbing spring 10 is installed in the second circular groove on its surface. The top of the upper shock-absorbing spring 10 is connected to the top buffer platform 9. The top egg protector 11 at the bottom of the top buffer platform 9 extends into the second circular groove and fits against the top of the egg. When the top fixing cover 8 or the sealing lid 14 is subjected to external impact, the impact force is transmitted to the upper shock-absorbing spring 10 in the second circular groove. The upper shock-absorbing spring 10 is compressed vertically, while the top egg protector 11 moves slightly downward with the top buffer platform 9. The rebound force of the upper shock-absorbing spring 10 acts in the opposite direction on the top egg protector 11, reducing the impact force on the top of the egg. Furthermore, the inner wall of the top egg protector 11 completely fits the outer wall of the egg top, preventing damage to the egg top due to uneven local stress. After the impact is released, the upper shock-absorbing spring 10 resets, causing the top buffer platform 9 and the top egg protector 11 to return to their initial positions, continuously protecting the top of the egg.

[0025] The lifting handle 12 on the top buffer platform 9 is an integrated protruding structure. Users can hold the lifting handle 12 to move the entire egg placement component, including the eggs, vertically upwards, achieving quick separation of the egg placement component from the egg storage container 1. This facilitates the batch handling of eggs without the need to disassemble each component individually. The sealing lid 14 engages with the external thread 101 of the egg storage container 1 through its inner wall thread. When tightened, it forms a sealed space inside the egg storage container 1, preventing external dust and moisture from entering and reducing contamination of the eggs by external impurities during transportation. In conjunction with the plastic material of the egg storage container 1, it provides a certain degree of waterproof and pressure-resistant protection.

[0026] The bottom egg-carrying rubber block 6, the middle positioning rubber plate 7, the egg-body limiting rubber clip 71, the top buffer rubber platform 9, and the top egg-protecting sleeve 11 are all made of food-grade silicone. This material has good elasticity and wear resistance, and is odorless and pollution-free, meeting food packaging safety standards. The egg storage container body 1 and the sealing lid 14 are made of high-strength PP plastic, which has good impact resistance and temperature resistance, and can adapt to different transportation environments. The number of bottom buffer grooves 3, lower telescopic support rods 4, lower shock-absorbing springs 5, and bottom egg-carrying rubber blocks 6 can be adjusted according to the diameter of the egg storage container body 1, such as 6, 8, etc. The spacing between adjacent components must be evenly distributed to ensure that each egg is subjected to consistent force. The opening size of the cross-shaped egg slot 72 can be designed in two sizes according to common egg specifications such as free-range eggs and regular eggs to improve product adaptability. The outer wall of the positioning rod 13 is provided with small protrusions to form an interference fit with the insertion hole of the bottom buffer seat 2, which not only ensures the stability of the top fixing cover 8 after assembly, but also avoids excessive force when inserting and removing. The portable handle 102 adopts an arc design and has anti-slip texture on the surface to improve grip comfort. At the same time, the handle and the egg storage bucket body 1 are integrally injection molded to enhance the connection strength.

[0027] In summary, this embodiment achieves comprehensive protection for eggs from bottom support and middle positioning to top protection by clearly defining the assembly relationship, motion logic and functional details of each component. It effectively solves the problems of poor fixation and weak impact resistance of traditional egg cartons, while taking into account both ease of assembly and food safety. It is suitable for various scenarios such as home storage and commercial transportation.

[0028] The accompanying drawings of this utility model are only for illustrating the specific structural positions to aid understanding and do not involve limitations such as scale, dimensions, or specifications.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A plastic food packaging can, characterized in that, The device includes an egg storage container body (1), with an inner support ring (103) protruding circumferentially on the inner sidewall of the egg storage container body (1). The upper surface of the inner support ring (103) carries an egg placement assembly. The egg placement assembly includes a bottom buffer seat (2) and a top fixed cover (8). The upper surface of the bottom buffer seat (2) is provided with several bottom buffer grooves (3) in the vertical direction. The bottom of each bottom buffer groove (3) is fixedly connected to a lower telescopic support rod (4) and a sleeve on the lower telescopic support rod (4). The outer lower shock-absorbing spring (5), the top of the lower telescopic support rod (4) extends vertically upward and is fixedly connected to the bottom egg-holding rubber block (6), the top end face of the bottom buffer seat (2) is covered with a middle layer positioning rubber plate (7), the upper surface of the middle layer positioning rubber plate (7) is provided with a groove corresponding to the position of each bottom egg-holding rubber block (6), and each groove is embedded with a fixed egg body limiting rubber card (71), and the upper surface of the egg body limiting rubber card (71) is provided with a cross-shaped egg card slot (72).

2. A plastic food packaging can according to claim 1, characterized in that: The upper surface of the bottom buffer seat (2) is provided with several insertion holes in the vertical direction. The lower surface of the top fixed cover (8) is fixedly connected with positioning rods (13) corresponding to the positions of each insertion hole. The positioning rods (13) extend downward in the vertical direction and are inserted and pulled into the corresponding insertion holes to realize the detachable connection between the top fixed cover (8) and the bottom buffer seat (2).

3. A plastic food packaging can according to claim 2, characterized in that: The upper surface of the top fixed cover (8) is provided with several second circular grooves in the vertical direction. The bottom of each second circular groove is fixedly connected to an upper shock-absorbing spring (10). The top of the upper shock-absorbing spring (10) extends upward in the vertical direction and is fixedly connected to a top buffer rubber platform (9). The lower surface of the top buffer rubber platform (9) is fixedly connected to a sleeve-shaped top egg protector (11) at the position of each second circular groove. The top egg protector (11) extends downward in the vertical direction and extends into the corresponding second circular groove. The inner side wall of the top egg protector (11) fits and adheres to the top outer wall of the egg.

4. A plastic food packaging can according to claim 3, characterized in that: The upper surface of the top buffer platform (9) is vertically protruding upward to form a lifting handle (12), which is used by the user to hold and lift the entire egg placement assembly.

5. A plastic food packaging can according to claim 4, characterized in that: The upper surface of the bottom egg-holding block (6) is recessed downward in the vertical direction to form an egg-holding block arc groove (61). The inner side wall of the egg-holding block arc groove (61) fits and adheres to the bottom outer wall of the egg to provide support and limit the bottom of the egg.

6. A plastic food packaging can according to claim 5, characterized in that: The outer diameter of the egg body limiting adhesive card (71) is larger than the maximum outer diameter of the egg. The inner wall contour of the cross-shaped egg card slot (72) matches the middle outer wall contour of the egg. The egg can pass through the cross-shaped egg card slot (72) vertically and engage with the egg body limiting adhesive card (71).

7. A plastic food packaging can according to claim 6, characterized in that: The upper part of the outer side wall of the egg storage bucket (1) is provided with an external thread (101) along the circumference. The external thread (101) is used to connect with the inner side wall of the sealing lid (14) to achieve the sealing of the top opening of the egg storage bucket (1) by the sealing lid (14). Two portable handles (102) are symmetrically arranged in the middle of the outer side wall of the egg storage bucket (1). The portable handles (102) are used for users to hold and move the egg storage bucket (1).