Double-sided tearing plastic box

By using a double-sided tear-off plastic box design with double sealing slots and a tear-off edge structure, the problems of poor sealing and inconvenient opening of plastic boxes are solved, achieving a combination of sealing and easy opening.

CN224117907UActive Publication Date: 2026-04-14XIONG COUNTY FEIYANG ENVIRONMENTAL PROTECTION PACKAGING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing plastic boxes have poor sealing due to their snap-fit ​​connections, which makes food prone to spoilage and inconvenient to open.

Method used

The double-sided tear-off plastic box is designed with a double sealing structure consisting of first and second sealing grooves and a sealing strip. The sealing path is achieved through a combination of tear-off edges and grooves, ensuring airtightness while making it easy to open.

Benefits of technology

It achieves a double sealing effect for the plastic box, ensuring the food is airtight, while being easy to open and maintaining its airtightness when reused.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224117907U_ABST
Patent Text Reader

Abstract

The utility model discloses a double-sided tearing plastic box which comprises a box body and a cover, a sealing connecting edge is arranged at the upper end of the box body, a first sealing clamping groove and a second sealing clamping groove are formed in the sealing connecting edge, and a first sealing strip and a second sealing strip are fixedly arranged on the lower end face of the cover. The first sealing clamping groove corresponds to the first sealing strip, the second sealing clamping groove corresponds to the second sealing strip, grooves are formed in the two side edges of the cover, and tearing edges are fixedly arranged at the positions of the grooves. The first sealing strip and the second sealing strip form a double-sealing structure, a zigzag sealing path is formed on the connecting surface of the cover and the sealing connecting edge, so that the sealing effect of the plastic box is improved, a certain external force is applied to the tearing edge, the tearing edge is torn along the tearing dotted line, and after the tearing edge is torn, the tearing edge can be sealed. The groove in the side face of the cover is exposed and forms a force application point, and at the moment, force can be applied through the groove to open the cover.
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Description

Technical Field

[0001] This utility model relates to the field of plastic box technology, specifically a double-sided tear-off plastic box. Background Technology

[0002] Plastic boxes are containers made of plastic and are widely used in food packaging, daily necessities storage, and industrial transportation. Plastic boxes can be classified by material as follows: PP (polypropylene), PS (polystyrene), HDPE (high-density polyethylene), PET (polyethylene terephthalate), and PC (polycarbonate). They can also be classified by use as: food-grade plastic boxes, industrial plastic boxes, disposable plastic boxes, and reusable plastic boxes.

[0003] Plastic boxes consist of a box body and a lid. To facilitate opening the plastic box, the box body and the lid are usually connected by snaps. However, snaps do not provide a good seal, and the food stored in the plastic box is prone to spoilage. To ensure the plastic box is airtight, the edges of the box body and the lid are usually sealed and pressed together, which makes it inconvenient to open the plastic box lid. Utility Model Content

[0004] The purpose of this invention is to provide a double-sided tear-off plastic box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-sided tear-off plastic box, including a box body and a lid. The upper end of the box body is provided with a sealing connection edge, and a first sealing groove and a second sealing groove are provided on the sealing connection edge. A first sealing strip and a second sealing strip are fixedly provided on the lower end surface of the lid. The first sealing groove is correspondingly provided with the first sealing strip, and the second sealing groove is correspondingly provided with the second sealing strip. Grooves are provided on both sides of the lid, and tear-off edges are fixedly provided in the grooves.

[0006] The two sides of the tear edge are connected to the groove by a tear line.

[0007] Both ends of the tear edge are provided with tear heads.

[0008] The box body includes a placement cavity, and the inner wall of the placement cavity is integrally formed with reinforcing ribs.

[0009] The second sealing groove is located on the periphery of the first sealing groove.

[0010] The second sealing strip is located on the periphery of the first sealing strip.

[0011] The first sealing strip of the cover is embedded in the first sealing groove of the sealing connection edge.

[0012] The second sealing strip of the cover is embedded in the second sealing groove of the sealing connection edge.

[0013] Wherein, the first sealing strip and the first sealing groove form a first sealing position, and the second sealing strip and the second sealing groove form a second sealing position.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The first sealing groove of the sealing connection edge of this utility model engages with the first sealing strip of the cover to achieve a seal, and the second sealing groove of the sealing connection edge engages with the second sealing strip of the cover to achieve a seal. The first sealing strip and the second sealing strip form a double sealing structure, and the connection surface between the cover and the sealing connection edge forms a tortuous sealing path, thereby improving the sealing effect of the plastic box.

[0016] 2. This utility model applies a certain external force to the tear edge, tearing the tear edge along the tear line. After the tear edge is torn open, the groove on the side of the lid is exposed. The groove forms a force application point. At this time, the lid can be opened by applying force through the groove, which ensures the sealing of the plastic box while making it easy to open.

[0017] 3. The groove of this utility model is set on the lid, which will not affect the sealing structure of the plastic box. When the lid is opened and closed again, the sealing of the plastic box can still be guaranteed. Attached Figure Description

[0018] Figure 1 This is a top view structural diagram of the box body and lid of this utility model;

[0019] Figure 2 This is a bottom view structural diagram of the box body and lid of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the box body and the lid of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the lid of this utility model after the tear-off edge has been removed;

[0022] Figure 5 This is a partial sectional view of the present invention.

[0023] In the diagram: 1. Box body; 2. Lid; 3. Sealing connection edge; 11. Reinforcing rib; 21. First sealing strip; 22. Second sealing strip; 23. Groove; 24. Tear-off edge; 241. Tear-off head; 31. First sealing groove; 32. Second sealing groove. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a double-sided tear-off plastic box, including a box body 1 and a lid 2. The upper end of the box body 1 is provided with a sealing connection edge 3. The box body 1 and the sealing connection edge 3 are integrally formed. The sealing connection edge 3 is provided with a first sealing groove 31 and a second sealing groove 32. The lower end surface of the lid 2 is fixedly provided with a first sealing strip 21 and a second sealing strip 22. The first sealing groove 31 is correspondingly provided with the first sealing strip 21, and the second sealing groove 32 is correspondingly provided with the second sealing strip 22. Grooves 23 are provided on both sides of the lid 2. A tear-off edge 24 is fixedly provided at the groove 23. The tear-off edge 24 can be torn.

[0026] The box body 1 and the lid 2 are separate structures. When the lid 2 is closed, as shown... Figure 5 As shown, the first sealing strip 21 of the cover 2 is embedded in the corresponding first sealing groove 31, and the second sealing strip 22 of the cover 2 is embedded in the corresponding second sealing groove 32. The first sealing groove 31 engages with the first sealing strip 21 to achieve a seal, and the second sealing groove 32 engages with the second sealing strip 22 to achieve a seal. The first sealing strip 21 and the second sealing strip 22 form a double sealing structure. The connection surface between the cover 2 and the sealing connection edge 3 forms a tortuous sealing path, thereby improving the sealing effect of the plastic box.

[0027] The two sides of the tear edge 24 are connected to the groove 23 by tearing dotted lines, which makes it easy to tear the tear edge 24.

[0028] Both ends of the tear edge 24 are provided with tear heads 241. The tear edge 24 and the tear heads 241 are an integral structure. The tear heads 241 extend to the outside to facilitate tearing the tear edge 24.

[0029] When the box body 1 and the lid 2 are fixedly connected together, such as Figure 3 As shown, the connection between the box body 1 and the lid 2 is tightly fitted. When it is necessary to open the lid 2, pinch the tear head 241 of the tear edge 24 and apply a certain external force to the tear edge 24 to tear the tear edge 24 along the tear dotted line. After the tear edge 24 is torn open, the groove 23 on the side of the lid 2 is exposed. The groove 23 forms a force application point. At this time, the lid 2 can be opened by applying force through the groove 23. This ensures the sealing of the plastic box while making it easy to open.

[0030] The groove 23 is set on the lid 2 and will not affect the sealing structure of the plastic box. When the lid 2 is opened and closed again, the sealing of the plastic box can still be guaranteed. The plastic box can be reused and the sealing effect can be maintained.

[0031] The box body 1 includes a placement cavity, and the inner wall of the placement cavity is integrally formed with reinforcing ribs 11.

[0032] During the production of box body 1, the reinforcing rib 11 structure is integrally molded. While ensuring strength, this reduces the amount of plastic used. The reinforcing rib 11 is hidden inside the plastic box, improving its aesthetics. Figure 1 As shown, the reinforcing rib 11 includes multiple crisscrossing ribs. The reinforcing rib 11 improves the compressive and impact resistance of the box body 1 and prevents the box body 1 from deforming.

[0033] The second sealing groove 32 is located around the first sealing groove 31, and the first sealing groove 31 and the second sealing groove 32 form two sets of locking positions.

[0034] The second sealing strip 22 is located around the first sealing strip 21.

[0035] The first sealing strip 21 of the cover 2 is embedded in the first sealing groove 31 of the sealing connection edge 3 and is fastened by the friction between the first sealing strip 21 and the first sealing groove 31.

[0036] The second sealing strip 22 of the cover 2 is embedded in the second sealing groove 32 of the sealing connection edge 3 and is fastened by the friction between the second sealing strip 22 and the second sealing groove 32.

[0037] The first sealing strip 21 and the first sealing groove 31 form a first sealing position, and the second sealing strip 22 and the second sealing groove 32 form a second sealing position.

[0038] Both the first sealing strip 21 and the second sealing strip 22 are sealing rubber ring structures. When connecting the box body 1 and the cover 2, a certain external force is applied to press the cover 2, which squeezes the first sealing strip 21 of the cover 2 into the first sealing groove 31 to achieve the sealing of the first sealing position. The second sealing strip 22 of the cover 2 is squeezed into the second sealing groove 32 to achieve the sealing of the second sealing position. The double sealing at the connection between the box body 1 and the cover 2 is achieved through the two sets of sealing positions.

[0039] Working principle: In the initial state, the box body 1 and the lid 2 are fixedly connected together, such as... Figure 3 As shown, the connection between the box body 1 and the lid 2 fits tightly, as... Figure 5As shown, the first sealing strip 21 of the lid 2 is embedded in the corresponding first sealing groove 31, and the second sealing strip 22 of the lid 2 is embedded in the corresponding second sealing groove 32. The first sealing groove 31 engages with the first sealing strip 21 to achieve a seal, and the second sealing groove 32 engages with the second sealing strip 22 to achieve a seal. The two sets of sealing positions achieve a double seal at the connection between the box body 1 and the lid 2. When it is necessary to open the lid 2, pinch the tear head 241 of the tear edge 24 and apply a certain external force to the tear edge 24 to tear the tear edge 24 along the tear dotted line. After the tear edge 24 is torn open, the groove 23 on the side of the lid 2 is exposed. The groove 23 forms a force application point. At this time, the lid 2 can be opened by applying force through the groove 23. While ensuring the sealing of the plastic box, it is also convenient to open the plastic box. The groove 23 is set on the lid 2 and will not affect the sealing structure of the plastic box. When the lid 2 is opened and then closed again, the sealing of the plastic box can still be guaranteed.

[0040] 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 double-sided tear-off plastic box, comprising a box body (1) and a lid (2), characterized in that: The upper end of the box body (1) is provided with a sealing connection edge (3), and the sealing connection edge (3) is provided with a first sealing groove (31) and a second sealing groove (32). The lower end surface of the cover (2) is fixedly provided with a first sealing strip (21) and a second sealing strip (22). The first sealing groove (31) is provided in correspondence with the first sealing strip (21), and the second sealing groove (32) is provided in correspondence with the second sealing strip (22). The two sides of the cover (2) are provided with grooves (23), and the grooves (23) are fixedly provided with tear-off edges (24).

2. The double-sided tear-off plastic box according to claim 1, characterized in that: Both sides of the tear edge (24) are connected to the groove (23) by tear lines.

3. The double-sided tear-off plastic box according to claim 1, characterized in that: Both ends of the tear edge (24) are provided with tear heads (241).

4. The double-sided tear-off plastic box according to claim 1, characterized in that: The box body (1) includes a placement cavity, and the inner wall of the placement cavity is integrally formed with reinforcing ribs (11).

5. The double-sided tear-off plastic box according to claim 1, characterized in that: The second sealing groove (32) is located on the periphery of the first sealing groove (31).

6. The double-sided tear-off plastic box according to claim 1, characterized in that: The second sealing strip (22) is located around the first sealing strip (21).

7. The double-sided tear-off plastic box according to claim 1, characterized in that: The first sealing strip (21) of the cover (2) is embedded in the first sealing groove (31) of the sealing connection edge (3).

8. The double-sided tear-off plastic box according to claim 1, characterized in that: The second sealing strip (22) of the cover (2) is embedded in the second sealing groove (32) of the sealing connection edge (3).

9. The double-sided tear-off plastic box according to claim 1, characterized in that: The first sealing strip (21) and the first sealing groove (31) form a first sealing position, and the second sealing strip (22) and the second sealing groove (32) form a second sealing position.