Packaging box with scavenging valve
By introducing a breathing valve and a limiting block structure into the packaging box, the problems of packaging damage and product deterioration caused by unstable air pressure are solved, air pressure balance and item fixation are achieved, and the applicability and flexibility of the packaging box are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-14
AI Technical Summary
Existing packaging boxes cannot effectively balance internal air pressure, leading to packaging damage or product deterioration, affecting product quality and safety.
Design a packaging box with a ventilation valve to achieve dynamic air pressure balance through the ventilation valve, and combine it with a limiting block and elastic clip structure to achieve convenient assembly and disassembly and secure the items.
It achieves dynamic balance of air pressure inside the packaging box, preventing packaging damage and product deterioration, and improving the applicability and flexibility of the packaging box.
Smart Images
Figure CN224117956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging box technology, and in particular to a packaging box with a ventilation valve. Background Technology
[0002] In the modern product packaging field, with the continuous upgrading of industry demands such as food preservation, moisture protection for electronic products, and transportation of chemical products, the functionality and safety of packaging boxes are becoming increasingly important. Food packaging needs to maintain a stable internal gas environment under a sealed state to avoid oxidation or microbial growth. Electronic product packaging needs to prevent internal moisture condensation from damaging components. Meanwhile, packaging for chemical products containing volatile substances needs to balance internal gas pressure to prevent container bursting. Traditional packaging boxes mostly use a single sealing structure, which is difficult to meet the special needs of different products for gas exchange and pressure balance. Developing new packaging boxes that combine sealing and gas regulation functions has become an urgent need for industry development.
[0003] Existing packaging boxes mainly use two types of structures to achieve sealing. One type is foldable packaging boxes, which are closed by physical fastening of the box body folds and buckles, and use glue or hot pressing process to enhance the sealing effect. The other type is injection molded sealed boxes, which rely on the threaded connection between the box lid and the box body or the compression of the sealing ring to achieve sealing.
[0004] However, existing packaging boxes generally cannot effectively balance internal air pressure, leading to packaging damage or product deterioration. During transportation or storage, if the contents of traditional sealed packaging boxes generate gas due to temperature changes or if the air pressure rises due to the accumulation of volatile substances, the packaging box is prone to bulging, deformation, or even bursting. Conversely, when the air pressure inside the packaging box decreases due to low temperature contraction or the contents absorbing gas, the external air cannot be replenished in time, causing the box to dent and the seal to fail, affecting product quality and safety. Therefore, a packaging box with an air exchange valve is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a packaging box with a ventilation valve, which aims to improve the problem in the prior art that the internal air pressure cannot be effectively balanced, resulting in packaging damage or product deterioration, affecting product quality and safety.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A packaging box with a ventilation valve includes a box body one and a box body two. A flap is fixedly connected to one side of both box body one and box body two, and the two boxes are connected by the flap. An adhesive layer one is provided at the bottom of box body one, and an adhesive layer two is provided at the top of box body two. The adhesive layers one and two are bonded together. An air hole is provided inside box body one, and a breathing valve is provided inside box body one, passing through the air hole. A pad is provided inside box body one, and a through hole is provided inside the pad. The pad is fitted onto the outer wall of the breathing valve through the through hole. A connecting component is provided on the outer wall of the breathing valve.
[0008] As a further description of the above technical solution:
[0009] The connecting assembly includes two fixing blocks and a connecting block. One side of each of the two fixing blocks is fixedly connected to the outer wall of the breathing valve. The two fixing blocks are arranged symmetrically on the outer wall of the breathing valve. One side of each of the two connecting blocks is fixedly connected to the other side of the two fixing blocks.
[0010] As a further description of the above technical solution:
[0011] The box body has an internal slot and a limit block inside.
[0012] As a further description of the above technical solution:
[0013] The connecting block has a limiting groove inside, and the limiting block is disposed inside the empty groove.
[0014] As a further description of the above technical solution:
[0015] The limiting block is fitted into the limiting groove.
[0016] As a further description of the above technical solution:
[0017] Multiple support plates are fixedly connected inside the second box, and the multiple support plates are arranged in a triangular symmetrical manner on the inner wall of the second box.
[0018] As a further description of the above technical solution:
[0019] Each of the multiple support plates has an elastic clip fixedly connected to one side, and the elastic clip is arc-shaped.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the breathing valve is opened and closed by the change of air pressure inside the packaging box. When the internal air pressure rises, the gas pressure pushes the breathing valve to open and expel excess gas. When the internal air pressure drops, the external air pressure causes the breathing valve to open and introduce air. This structure works in concert to achieve the effect of dynamically balancing the air pressure inside the packaging box. It solves the problem of the inability to effectively balance the internal air pressure, which leads to packaging damage or product deterioration, affecting product quality and safety, thereby improving the applicability of the packaging box.
[0022] 2. In this utility model, the breathing valve is rotated to drive the limiting block and the limiting groove to engage or disengage. At the same time, the elastic clip is deformed by the pressure of the item. These structures work together to achieve the effect of easy disassembly and assembly of the breathing valve and flexible fixation of the item. This solves the problems of difficult disassembly and replacement of the breathing valve of traditional packaging boxes and the single method of fixing internal items, thereby improving the flexibility of the packaging box. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a packaging box with a ventilation valve according to the present invention.
[0024] Figure 2 An exploded view of the packaging box body with a ventilation valve proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the pad structure of a packaging box with a ventilation valve proposed in this utility model.
[0026] Figure 4 This is a schematic diagram of the internal structure of a packaging box with a ventilation valve according to the present invention.
[0027] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.
[0028] Legend:
[0029] 1. Box body one; 2. Box body two; 3. Folding piece; 4. Air hole; 5. Adhesive layer one; 6. Adhesive layer two; 7. Breathing valve; 8. Pad plate; 9. Through hole; 10. Support plate; 11. Elastic clip; 12. Fixing block; 13. Connecting block; 14. Empty groove; 15. Limiting block; 16. Limiting groove. 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] Reference Figures 1-3 This utility model provides an embodiment of a packaging box with a ventilation valve, comprising a box body 1 and a box body 2. Each of the box bodies 1 and 2 has a folding piece 3 fixedly connected to one side. The folding piece 3 provides a convenient splicing method, ensuring the box's sturdiness, and also provides some support during packaging. The box body 1 and box body 2 are connected by the folding piece 3. The bottom of the box body 1 has an adhesive layer 5, and the top of the box body 2 has an adhesive layer 6. The adhesive layer 5 and adhesive layer 6 are bonded together, and the two are connected by the adhesive layer 5 and adhesive layer 6. The two boxes are bonded together to effectively seal the box body 1 and box body 2 together, preventing the influence of air and the external environment. The box body 1 has an air hole 4 inside and a breathing valve 7 inside. The breathing valve 7 passes through the air hole 4. The design of the breathing valve 7 allows the air inside the box to be exchanged as needed, which can effectively prevent harmful substances in the air from entering and maintain a suitable internal environment. The box body 1 has a pad 8 inside and a through hole 9 inside. The pad 8 is fitted onto the outer wall of the breathing valve 7 through the through hole 9. The outer wall of the breathing valve 7 is provided with a connecting component.
[0032] Reference Figures 2-5 The connecting assembly includes two fixing blocks 12 and a connecting block 13. One side of each fixing block 12 is fixedly connected to the outer wall of the breathing valve 7. The two fixing blocks 12 are symmetrically arranged on the outer wall of the breathing valve 7 to ensure that the breathing valve 7 can be securely fixed inside the housing 1. One side of each connecting block 13 is fixedly connected to the other side of the two fixing blocks 12. A slot 14 is provided inside the housing 1, and a limiting block 15 is provided inside the housing 1. A limiting groove 16 is provided inside the connecting block 13. The limiting groove 16 provides space for fixing and adjustment, allowing the connecting block... 13 can be more firmly fixed inside the box. The limiting block 15 is set inside the empty groove 14. The limiting block 15 fits into the limiting groove 16. Multiple support plates 10 are fixedly connected inside the second box 2. The multiple support plates 10 are arranged in a triangular symmetrical arrangement on the inner wall of the second box 2. Each of the multiple support plates 10 is fixedly connected to one side with an elastic clip 11. The elastic clip 11 is arc-shaped, which further improves the pressure resistance and protection of the packaging box, ensuring that the contents can be better protected, especially during transportation, to avoid damage to the contents due to external collisions and vibrations.
[0033] Working principle: When using this packaging box, box body 1 and box body 2 are first connected by a hinge 3. The hinge 3 acts like a hinge, allowing box body 1 and box body 2 to rotate relative to each other. The adhesive layer 5 at the bottom of box body 1 is bonded to the adhesive layer 6 at the top of box body 2, so that the packaging box remains sealed when closed. When it is necessary to open the packaging box, external force is applied to overcome the adhesiveness of the adhesive layer, so that box body 1 and box body 2 can be separated. The breather valve 7 is installed in the air hole 4. When the gas pressure inside the packaging box changes, such as the internal gas expanding due to heat or the gas pressure rising due to the evaporation of the items, the breather valve 7 will open, allowing the gas to be discharged outside the packaging box through the air hole 4, preventing the internal pressure from being too high and damaging the packaging box or affecting the items inside. Conversely, when the internal gas pressure decreases, the breather valve 7 can also allow external air to enter, maintaining the gas pressure balance inside the packaging box.
[0034] When the breathing valve 7 needs to be disassembled or reassembled, first insert the breathing valve 7 into the through hole 9 and air hole 4 inside the box body 1. At this time, the connecting block 13 on the outer wall of the breathing valve 7 will slide into the empty groove 14 inside the box body 1. Then rotate the breathing valve 7 to make it move the connecting block 13 in the empty groove 14. During this process, the limiting groove 16 inside the connecting block 13 will engage with the limiting block 15 in the empty groove 14, thereby completing the fixation. When disassembling, simply turn the breathing valve 7 in the opposite direction. When an item is placed inside the box body 2, the elastic clip 11 inside the box body 2 will deform elastically due to the pressure of the item, thereby tightly clamping the item and preventing the item from shaking inside the packaging box, thus playing a role in fixation and buffer protection.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A packaging box with a ventilation valve, comprising a box body one (1) and a box body two (2), characterized in that: A flap (3) is fixedly connected to one side of both the first box (1) and the second box (2). The first box (1) and the second box (2) are connected by the flap (3). An adhesive layer (5) is provided at the bottom of the first box (1), and an adhesive layer (6) is provided at the top of the second box (2). The adhesive layer (5) and the adhesive layer (6) are bonded together. An air hole (4) is provided inside the first box (1). A breathing valve (7) is provided inside the first box (1). The breathing valve (7) passes through the air hole (4). A pad (8) is provided inside the first box (1). A through hole (9) is provided inside the pad (8). The pad (8) is fitted onto the outer wall of the breathing valve (7) through the through hole (9). A connecting component is provided on the outer wall of the breathing valve (7).
2. A packaging box with a ventilation valve according to claim 1, characterized in that: The connecting assembly includes two fixing blocks (12) and a connecting block (13). One side of each of the two fixing blocks (12) is fixedly connected to the outer wall of the breathing valve (7). The two fixing blocks (12) are arranged symmetrically on the outer wall of the breathing valve (7). One side of each of the two connecting blocks (13) is fixedly connected to the other side of the two fixing blocks (12).
3. A packaging box with a ventilation valve according to claim 2, characterized in that: The box body (1) has an open slot (14) inside, and a limit block (15) is provided inside the box body (1).
4. A packaging box with a ventilation valve according to claim 3, characterized in that: The connecting block (13) has a limiting groove (16) inside, and the limiting block (15) is disposed inside the empty groove (14).
5. A packaging box with a ventilation valve according to claim 4, characterized in that: The limiting block (15) is engaged with the limiting groove (16).
6. A packaging box with a ventilation valve according to claim 1, characterized in that: Multiple support plates (10) are fixedly connected inside the box body two (2), and the multiple support plates (10) are arranged in a triangular symmetrical manner on the inner wall of the box body two (2).
7. A packaging box with a ventilation valve according to claim 6, characterized in that: Each of the multiple support plates (10) has an elastic clip (11) fixedly connected to one side, and the elastic clip (11) is arc-shaped.