Anti-overflow blister lid with air pressure balancing valve
By introducing an air pressure balance valve and a limiting element into the blister cap, the limitations of air pressure regulation in the blister cap are solved, achieving automatic air pressure balance and sealing effect, thus improving the sealing performance and reliability of the blister cap.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GRAND MAX ENTERPRISE CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-21
AI Technical Summary
Existing blister caps are difficult to adjust internal air pressure after being formed in the mold, resulting in poor sealing and easy liquid leakage.
An anti-overflow blister cap with a pneumatic pressure balance valve was designed, including a limiting element and an assembly element. The pneumatic pressure valve controls the air pressure flow between the inlet and outlet valves through a press pump, thereby achieving air pressure balance. The press cap and the assembly thread in the assembly area form a sealed structure.
It achieves automatic adjustment of the blister cap when there is a difference in air pressure, prevents liquid from overflowing, enhances sealing performance and structural compactness, and improves reliability and practicality.
Smart Images
Figure CN224529461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blister packaging technology, specifically to an anti-overflow blister cover with an air pressure balance valve. Background Technology
[0002] Blister lids are plastic products made through a vacuum forming process. They are mainly used to protect food or liquids in cups and also have an aesthetic function. They are widely used in food and beverage and daily necessities packaging, such as milk tea cup lids and cosmetic bottle caps, combining sealing and aesthetics.
[0003] Existing blister caps are made by heating and softening plastic sheets, then vacuum-forming them in a mold. This method has certain limitations in terms of fixing the blister cap during packaging use, and it is not easy to adjust the internal air pressure, resulting in poor performance. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides an anti-overflow blister cap with an air pressure balance valve. This solves the problems of existing blister caps, which are formed by heating and softening plastic sheets and then vacuum-forming them in a mold. These blister caps have certain limitations in packaging and use, and it is not easy to adjust the internal air pressure, resulting in poor performance.
[0005] The technical solution adopted by this utility model is as follows: it includes a cover and a pneumatic valve; the cover includes a limiting element and an assembly element, the limiting element is disposed on the inner wall of the cover, and the assembly element is disposed on the side of the limiting element to form an assembly area in the cover; the pneumatic valve includes a pressing cover, a pressing pump, an air inlet valve and an air outlet valve, the pressing pump is movably disposed on the pressing cover, and the air inlet valve and the air outlet valve are disposed opposite to each other on both sides of the pressing cover, the pressing pump is used to control the air pressure flow of the air inlet valve and the air outlet valve; the pressing cover is provided with an assembly thread at one end near the assembly area, and one end of the pressing cover is disposed in the assembly area along the assembly thread to form a sealed structure, and the air pressure balance of the air inlet valve and the air outlet valve in the cover is controlled by the pressing pump.
[0006] A further improvement to the above solution is that the cover is integrally injection molded.
[0007] A further improvement to the above solution is that the cover is provided with an assembly groove, the assembly element is disposed on the inner wall of the cover relative to the assembly groove, and the assembly thread on the press cover is disposed in the assembly area along the assembly groove.
[0008] A further improvement to the above solution is that the limiting element includes a limiting frame, a positioning frame, and a limiting platform. The limiting frame is located below the cover and is used for mounting the cover to the box. The positioning frame is located on one side of the limiting frame, and the limiting platform is located between the limiting frame and the positioning frame.
[0009] A further improvement to the above scheme is that one end of the limiting frame is an inclined surface, the positioning frame is used for the installation and positioning of the limiting frame and the box body, and the limiting platform is used for the pressure valve to press and limit.
[0010] A further improvement to the above solution is that the assembly element includes an assembly frame, and multiple sets of the assembly frame are provided. The multiple sets of the assembly frame are arranged around the inner wall of the limiting frame along the assembly groove for supporting the assembly groove.
[0011] A further improvement to the above solution is that the assembly rack is a triangular assembly rack.
[0012] A further improvement to the above solution is that the outer ring of the pressing cover is provided with pressing stripes, and the pressing pump is disposed on the pressing cover and performs pressing activities through the pressing stripes.
[0013] A further improvement to the above scheme is that an auxiliary air hole is provided between the intake valve and the outlet valve, and the auxiliary air hole is arranged in a ring between the intake valve and the outlet valve.
[0014] A further improvement to the above solution is that the air pressure valve is a plastic product.
[0015] The beneficial effects of this utility model are:
[0016] Compared to existing blister caps, this invention ensures stable installation of the cap through limiting and assembly components, and provides precise positioning for the assembly of the air pressure valve. The air pressure valve allows users to control the air pressure flow between the inlet and outlet valves by operating a press pump, enabling the blister cap to automatically adjust air pressure balance when faced with internal and external air pressure differences, effectively preventing liquid spillage caused by uneven air pressure. Furthermore, one end of the press cap is equipped with assembly threads, which fit tightly with the assembly area to form a reliable sealing structure. This enhances the sealing performance of the blister cap, resulting in a compact structure and strong practicality. Attached Figure Description
[0017] Figure 1 This is a front view of the anti-overflow blister cap with air pressure balance valve of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the cover of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the pneumatic valve of this utility model.
[0020] Explanation of reference numerals in the attached drawings: Cover 10, Limiting element 11, Limiting frame 112, Positioning bracket 113, Limiting platform 114, Assembly element 12, Assembly bracket 121, Assembly slot 13;
[0021] 20. Pressure valve, 21. Press cover, 211. Assembly thread, 212. Press stripe, 22. Press pump, 23. Inlet valve, 24. Outlet valve, 25. Auxiliary air hole. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0025] like Figures 1-3As shown in the embodiment of this utility model, an anti-overflow blister cap with a pneumatic pressure balance valve includes: a cap body 10 and a pneumatic pressure valve 20; the cap body 10 includes a limiting element 11 and an assembly element 12, the limiting element 11 is disposed on the inner wall surface of the cap body 10, and the assembly element 12 is disposed in the cap body 10 near the limiting element 11 to form an assembly area; the pneumatic pressure valve 20 includes a pressing cover 21, a pressing pump 22, an air inlet valve 23, and an air outlet valve 24, the pressing pump 22 being movably disposed on On the press cover 21, the air inlet valve 23 and the air outlet valve 24 are arranged opposite to each other on both sides of the press cover 21. The press pump 22 is used to control the air pressure flow of the air inlet valve 23 and the air outlet valve 24. The press cover 21 is provided with an assembly thread 211 at one end near the assembly area. One end of the press cover 21 is arranged in the assembly area along the assembly thread 211 to form a sealed structure. The press pump 22 controls the air pressure balance of the air inlet valve 23 and the air outlet valve 24 in the cover body 10. In this embodiment, the limiting element 11 and the assembly element 12 ensure the stable installation of the cover 10 and provide precise positioning for the assembly of the air pressure valve 20. Through the air pressure valve 20, the user can operate the press pump 22 to control the air pressure flow of the air inlet valve 23 and the air outlet valve 24, so that the blister cover can automatically adjust the air pressure balance when faced with the difference between the internal and external air pressure, effectively preventing problems such as liquid overflow caused by uneven air pressure. One end of the press cover 21 is also provided with an assembly thread 211, which fits tightly with the assembly area to form a reliable sealing structure. This enhances the sealing performance of the blister cover, making it compact and highly practical.
[0026] In the above embodiments, the air pressure valve 20 adopts a dual-valve linkage design, and the press pump 22 can simultaneously control the opening and closing of the air inlet valve 23 and the air outlet valve 24. When a negative pressure is generated inside the blister cap, the pressing operation can simultaneously open the air inlet channel to replenish air, while under positive pressure, excess gas is released through the air outlet valve 24. This bidirectional adjustment mechanism keeps the internal and external air pressures in dynamic balance, avoiding liquid leakage or difficulty in opening the cap due to air pressure differences.
[0027] like Figures 1 to 2 As shown, the cover 10 is integrally injection molded. In this embodiment, the use of integral injection molding technology for the cover 10 ensures the structural integrity and sealing of the cover 10, effectively preventing leakage of liquids or other contents, and improving the safety and reliability of the product.
[0028] The cover 10 is provided with an assembly groove 13. The assembly element 12 is disposed on the inner wall of the cover 10 relative to the assembly groove 13. The assembly thread 211 on the press cover 21 is disposed in the assembly area along the assembly groove 13. In this embodiment, the assembly groove 13 is cleverly provided on the cover 10, which facilitates the positioning and installation of the assembly element 12 and ensures the stability of the structure. The assembly element 12 is closely attached to the inner wall of the cover 10, which effectively utilizes the internal space and enhances the overall compactness. The assembly thread 211 on the press cover 21 is carefully arranged in the assembly area along the assembly groove 13. This layout not only improves the convenience of operation, but also ensures the stable performance of the sealing performance and air pressure balance function.
[0029] The limiting element 11 includes a limiting frame 112, a positioning frame 113, and a limiting platform 114. The limiting frame 112 is located below the cover 10 for mounting the cover 10 to the box. The positioning frame 113 is located on one side of the limiting frame 112, and the limiting platform 114 is located between the limiting frame 112 and the positioning frame 113. In this embodiment, the limiting frame 112 is cleverly positioned below the cover 10, ensuring a stable installation between the cover 10 and the box, effectively preventing leakage caused by improper installation. The positioning frame 113 further enhances the stability of the structure, making the entire blister cover more reliable during use. The limiting platform 114 is cleverly located between the limiting frame 112 and the positioning frame 113, playing a precise limiting role and ensuring accurate cooperation between the various components.
[0030] One end of the limiting frame 112 is inclined. The positioning bracket 113 is used for the installation and positioning of the limiting frame 112 and the box body. The limiting platform 114 is used for the pressing and limiting of the air pressure valve 20. In this embodiment, the positioning bracket 113 acts as a bridge between the limiting frame 112 and the box body, ensuring accurate installation and greatly improving the stability and reliability of the assembly. The setting of the limiting platform 114 is the key to accurately pressing and limiting the air pressure valve 20, effectively preventing the air pressure valve 20 from shifting or shaking during operation, thereby ensuring the overall air pressure balance performance of the anti-overflow blister cap.
[0031] The assembly element 12 includes an assembly frame 121, which is provided in multiple sets. These multiple sets of assembly frames 121 are arranged around the inner wall of the limiting frame 112 along the assembly groove 13, providing support for the assembly groove 13. In this embodiment, the assembly frames 121 arranged around the inner wall of the limiting frame 112 along the assembly groove 13 form a stable support structure, enhancing the stability of the assembly groove 13 and ensuring the overall robustness of the anti-overflow blister cap structure. Through the coordinated action of multiple sets of assembly frames 121, the air pressure balance valve can be installed and fixed more precisely, thereby improving the functionality and safety of the anti-overflow blister cap.
[0032] The assembly frame 121 is a triangular assembly frame 121. In this embodiment, the triangular assembly frame 121 provides a stable and efficient assembly environment for the pneumatic valve 20, which can withstand greater assembly pressure and ensure the accuracy and stability of the blister cap during the assembly process.
[0033] like Figure 3 As shown, the outer ring of the press cover 21 is provided with press stripes 212, and the press pump 22 is mounted on the press cover 21 and performs pressing activities through the press stripes 212. In this embodiment, the press stripes 212 are cleverly designed on the outer ring of the press cover 21, which not only improves the user experience but also enhances the functionality of the press pump 22; the user only needs to press these stripes lightly to easily drive the press pump 22 to work, making the operation simple and quick.
[0034] An auxiliary air hole 25 is provided between the air inlet valve 23 and the air outlet valve 24, and the auxiliary air hole 25 is arranged in a ring between the air inlet valve 23 and the air outlet valve 24. In this embodiment, the auxiliary air hole 25 is cleverly arranged between the air inlet valve 23 and the air outlet valve 24, and the auxiliary air hole 25 is distributed in a ring shape, which effectively plays a role in balancing air pressure during the air intake and exhaust process, ensuring the smooth and stable airflow; improving the overall performance of the anti-overflow blister cap, and also enhancing its stability and reliability during use.
[0035] The air pressure valve 20 is made of plastic. In this embodiment, the plastic air pressure valve 20 is not only lightweight and durable, but also has good sealing performance and elasticity, which can effectively regulate the balance of internal and external air pressure and prevent the blister cap from deforming or leaking due to air pressure differences.
[0036] An anti-overflow blister cap with a pressure balancing valve includes: a cap body 10 and a pressure valve 20; the cap body 10 includes a limiting element 11 and an assembly element 12, the limiting element 11 being disposed on the inner wall surface of the cap body 10, and the assembly element 12 being disposed within the cap body 10 near the limiting element 11 to form an assembly area; the pressure valve 20 includes a pressing cover 21, a pressing pump 22, an air inlet valve 23, and an air outlet valve 24, the pressing pump 22 being movably disposed on the pressing cover 21. The air inlet valve 23 and the air outlet valve 24 are arranged opposite to each other on both sides of the press cover 21. The press pump 22 is used to control the air pressure flow of the air inlet valve 23 and the air outlet valve 24. The press cover 21 is provided with an assembly thread 211 at one end near the assembly area. One end of the press cover 21 is arranged in the assembly area along the assembly thread 211 to form a sealed structure. The press pump 22 controls the air pressure balance of the air inlet valve 23 and the air outlet valve 24 in the cover body 10. In this embodiment, the limiting element 11 and the assembly element 12 ensure the stable installation of the cover 10 and provide precise positioning for the assembly of the air pressure valve 20. Through the air pressure valve 20, the user can operate the press pump 22 to control the air pressure flow of the air inlet valve 23 and the air outlet valve 24, so that the blister cover can automatically adjust the air pressure balance when faced with the difference between the internal and external air pressure, effectively preventing problems such as liquid overflow caused by uneven air pressure. One end of the press cover 21 is also provided with an assembly thread 211, which fits tightly with the assembly area to form a reliable sealing structure. This enhances the sealing performance of the blister cover, making it compact and highly practical.
[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A spill-proof blister cap with a pressure balancing valve, characterized in that, include: The cover and the air pressure valve; the cover includes a limiting element and an assembly element, the limiting element is disposed on the inner wall of the cover, and the assembly element is disposed on the side of the limiting element to form an assembly area in the cover. The pneumatic valve includes a pressing cover, a pressing pump, an air inlet valve, and an air outlet valve. The pressing pump is movably mounted on the pressing cover, and the air inlet valve and the air outlet valve are disposed opposite each other on both sides of the pressing cover. The pressing pump is used to control the air pressure flow of the air inlet valve and the air outlet valve. The end of the press cover near the assembly area is provided with an assembly thread. One end of the press cover is disposed in the assembly area along the assembly thread to form a sealed structure. The press pump controls the air pressure balance of the air inlet valve and the air outlet valve in the cover body.
2. The anti-overflow blister cap with air pressure balance valve according to claim 1, characterized in that: The cover is integrally injection molded.
3. The anti-overflow blister cap with air pressure balance valve according to claim 2, characterized in that: The cover is provided with an assembly groove, the assembly element is disposed on the inner wall of the cover relative to the assembly groove, and the assembly thread on the press cover is disposed in the assembly area along the assembly groove.
4. The anti-overflow blister cap with air pressure balance valve according to claim 3, characterized in that: The limiting element includes a limiting frame, a positioning frame, and a limiting platform. The limiting frame is located below the cover and is used for mounting the cover to the box. The positioning frame is located on one side of the limiting frame, and the limiting platform is located between the limiting frame and the positioning frame.
5. The anti-overflow blister cap with air pressure balance valve according to claim 4, characterized in that: One end of the limiting frame is an inclined surface, the positioning frame is used for the installation and positioning of the limiting frame and the box body, and the limiting platform is used for the pressure valve to press and limit.
6. The anti-overflow blister cap with air pressure balance valve according to claim 5, characterized in that: The assembly component includes an assembly frame, and multiple sets of the assembly frame are provided. The multiple sets of the assembly frame are arranged around the inner wall of the limiting frame along the assembly groove for supporting the assembly groove.
7. The anti-overflow blister cap with air pressure balance valve according to claim 6, characterized in that: The assembly rack is a triangular assembly rack.
8. The anti-overflow blister cap with air pressure balance valve according to claim 7, characterized in that: The outer ring of the press cover is provided with press stripes, and the press pump is installed on the press cover and performs press activities through the press stripes.
9. The anti-overflow blister cap with air pressure balance valve according to claim 1, characterized in that: An auxiliary air hole is provided between the intake valve and the outlet valve, and the auxiliary air hole is arranged in a ring between the intake valve and the outlet valve.
10. The anti-overflow blister cap with air pressure balance valve according to claim 9, characterized in that: The air pressure valve is a plastic product.