Pressure relief bottle cap and beverage bottle applying same
By designing the elastic deformation zone and sealing components of the pressure relief cap, the problem of pressure control during the heating process of beverage bottles was solved, thereby improving safety and quality and making it suitable for large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-10
AI Technical Summary
Existing beverage bottles cannot effectively control the internal pressure during heating, posing a safety hazard. Furthermore, existing pressure relief structures are complex or cannot precisely control the timing of pressure relief, affecting beverage quality and safety.
Design a pressure relief bottle cap, including a cap body and a sealing component. The top area is an elastic deformation zone, which releases pressure by elastically expanding and deforming under a preset pressure. Combined with a wave-shaped or pleated structure and a sealing gasket, it achieves precise control of pressure relief.
It achieves precise control of pressure release timing while ensuring airtightness, thereby improving beverage safety and quality. It has a simple structure, low cost, and is suitable for large-scale production.
Smart Images
Figure CN224104621U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The embodiments of the present application relate to the technical field of containers. More specifically, the present application relates to a pressure relief bottle cap and a beverage bottle using the same. BACKGROUND
[0002] Disposable beverage bottles are one of the main packaging forms of various beverages. Consumers can conveniently purchase beverages of various brands and flavors to meet the demand for instant consumption. Conventional disposable beverage bottles use simple sealing caps to close the bottle mouth. During the heating process, the liquid in the bottle expands under heat, which increases the pressure. The pressure in the bottle cannot be effectively released, and there is a safety hazard, such as bottle rupture or explosion.
[0003] In the prior art, in order to solve the above technical problems, the following methods are usually used: 1) a method of solving the pressure problem by adding a vent hole to the sealing cap. Although the pressure can be released to some extent, the timing of pressure relief cannot be accurately controlled, which may cause the beverage to leak during the heating process, thereby affecting the quality and safety of the beverage. 2) A pressure relief is achieved by adding a complex mechanical structure. However, these structures often increase the manufacturing cost and operational complexity, and have low reliability in actual use, which is prone to failure and is not conducive to large-scale production and use.
[0004] Therefore, those skilled in the art urgently need to seek a pressure relief bottle cap and a beverage bottle using the same, which can effectively control the pressure in the bottle during the heating process while ensuring the sealing of the beverage, thereby avoiding safety hazards. SUMMARY
[0005] In order to solve one or more of the above technical problems, the present application provides a pressure relief bottle cap and a beverage bottle using the same.
[0006] According to a first aspect of the present application, a pressure relief bottle cap is provided. The pressure relief bottle cap comprises a bottle cap body and a sealing assembly. The sealing assembly is attached to the top wall inside the bottle cap body. A pressure relief gap is formed on the top region of the side wall of the bottle cap body, and the pressure relief gap is located below the sealing assembly. The side wall of the top region of the bottle cap body is configured as an elastic deformation zone, and the elastic deformation zone is configured to cause the side wall of the top region to elastically expand when the internal pressure increases to a preset value.
[0007] In some embodiments, the side wall of the top region of the bottle cap body is configured as a wave-shaped structure or a crumpled structure, and at least one concave portion is formed on the wave-shaped structure or the crumpled structure. The concave portion is configured to form an elastic expansion deformation under the action of pressure.
[0008] In some embodiments, the top region of the outer peripheral side wall of the bottle cap body is uniformly distributed with a plurality of pits.
[0009] In some embodiments, the sealing assembly comprises a sealing gasket and a collapsible pad, the collapsible pad being arranged in abutment between the top wall of the cap body and the sealing gasket.
[0010] In some embodiments, the sealing gasket is made of rubber material, and the collapsible pad is made of foamed polyethylene, elastomer or degradable polymer.
[0011] In some embodiments, the pressure relief slit is arranged in the side wall of the top region in proximity to the sealing gasket and spaced apart circumferentially.
[0012] In some embodiments, the pressure relief slit has a length ranging from 5mm to 10mm and a width ranging from 0.1mm to 0.3mm.
[0013] In some embodiments, the cap body is made of aluminum alloy, and the cap body has a wall thickness ranging from 1mm to 3mm.
[0014] In some embodiments, the sealing assembly has a thickness ranging from 1mm to 3mm, and the sealing assembly has a fitting gap ranging from 0.5mm to 2mm with the inner circumferential wall of the cap body.
[0015] According to a second aspect of the present application, a beverage bottle is provided. The beverage bottle comprises the pressure relief cap as described above.
[0016] With the pressure relief cap and the beverage bottle applying the same as provided above, by arranging the side wall structure of the top region of the cap body as the elastic deformation zone, and the elastic expansion deformation of the top region occurs only when the pressure in the cavity of the top region reaches the preset value, so that the pressure relief cap according to the embodiments of the present application can, on the one hand, ensure effective sealing while accurately controlling the pressure relief timing, thereby improving the quality and safety of the beverage; on the other hand, the pressure relief structure is simple and low in cost, and is not prone to failure, which is conducive to large-scale production and use. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation. Like or corresponding reference numerals primarily designate the same or corresponding parts throughout the drawings, in which:
[0018] Figure 1 FIG. 1 is a structural schematic view of a pressure relief cap according to an embodiment of the present application;
[0019] Figure 2 FIG. 2 is a sectional view of the pressure relief cap shown in FIG. 1 along the direction of A-A; Figure 1
[0020] Figure 3 Fig. 1 is a schematic view of a pressure relief state of a pressure relief bottle cap according to an embodiment of the present application. Figure 2 Fig. 2 is a schematic view of a pressure relief state of a pressure relief bottle cap according to an embodiment of the present application. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the protection scope of the present application.
[0022] Figure 1 Fig. 1 is a schematic view of a pressure relief state of a pressure relief bottle cap according to an embodiment of the present application. Figure 2 Fig. 1 is a schematic view of a pressure relief state of a pressure relief bottle cap according to an embodiment of the present application. Figure 3 Fig. 2 is a schematic view of a pressure relief state of a pressure relief bottle cap according to an embodiment of the present application. Figures 1 to 3 As shown in Fig. 1, the pressure relief bottle cap 100 according to the embodiment of the present application comprises a bottle cap body 1 and a sealing assembly 2, the sealing assembly 2 is attached to the top wall in the bottle cap body 1, the side wall of the top region 11 of the bottle cap body 1 is formed with a pressure relief gap 111, the pressure relief gap 111 is located below the sealing assembly 2, wherein the side wall of the top region 11 of the bottle cap body 1 is configured as an elastic deformation area, and the elastic deformation area is configured to cause the side wall of the top region 11 to elastically expand and deform when the internal pressure increases to a preset value.
[0023] In the specific use of the pressure relief bottle cap 100 according to the embodiment of the present application, in the normal use state, the pressure relief bottle cap 100 is connected with the bottle body, and under the support and pressure of the top wall of the bottle cap body 1, the sealing assembly 2 is sealingly attached to the bottle mouth of the bottle body. The liquid in the bottle body will not overflow under the sealing state of the sealing assembly 2. When heated, the pressure in the bottle body rises, the high pressure pushes the sealing assembly 2 and overflows, the cavity of the top region 11 increases in pressure, and the side wall of the top region 11 elastically expands and deforms under the action of the pressure (as shown in Fig. 2). After the elastic expansion and deformation of the top region 11, the opening of the pressure relief gap 111 increases, and the pressure can be quickly released through the pressure relief gap 111, thereby completing the pressure relief. Figure 3
[0024] Through the above arrangement, the pressure relief bottle cap 100 according to the embodiment of the present application, by configuring the side wall structure of the top region 11 of the bottle cap body 1 as an elastic deformation area, and causing the top region 11 to elastically expand and deform only when the pressure in the cavity of the top region 11 reaches a preset value, the pressure relief bottle cap 100 according to the embodiment of the present application can on the one hand ensure effective sealing while accurately controlling the timing of pressure relief, thereby improving the quality and safety of the beverage; on the other hand, the pressure relief structure is simple and low in cost, and is not prone to failure, which is conducive to large-scale production and use.
[0025] In the present application, the pressure relief threshold of the preset pressure can be preferably set to 0.3 MPa. When the pressure in the bottle does not reach 0.3 MPa, the sealing assembly 2 remains sealed with the bottle mouth together with the bottle cap body 1 to prevent beverage leakage. When the pressure in the bottle reaches 0.3 MPa, the pressure in the bottle pushes the sealing assembly 2 to move, the cavity of the top region 11 increases in pressure, the side wall of the top region 11 elastically expands and deforms under the action of pressure, the pressure relief gap 111 increases, and the pressure is released through the pressure relief gap 111, thereby completing pressure relief. In addition, after the pressure in the bottle decreases, for example, below 0.1 MPa, the side wall of the top region 11 can return to the original position under the action of the elastic deformation property of the top region 11 itself, and the sealing assembly 2 reseals the bottle mouth.
[0026] Please refer to Figures 1 to 3 In some embodiments, the side wall of the top region 11 of the bottle cap body 1 can be configured in a wave structure or a corrugated structure, and the wave structure or the corrugated structure is formed with at least one concave portion 112 which is arranged to be able to elastically expand and deform under the action of pressure.
[0027] As shown in Figure 2 The concave portion 112 in the present application is a portion that is recessed inward. When the concave portion 112 is subjected to pressure, it can deform more to improve the pressure relief effect. In the present application, the sealing assembly 2 can be limited in the bottle cap body 1 by the concave portion 112. The pressure relief gap 111 can be arranged in the concave portion 112 to more easily increase the opening of the pressure relief gap 111 when the concave portion 112 deforms.
[0028] Please refer to Figure 1 In some embodiments, the outer peripheral side wall of the top region 11 of the bottle cap body 1 can be uniformly distributed with a plurality of dimples 113.
[0029] Through the above arrangement, on the one hand, the dimples 113 can be configured as the rib structure of the top region 11 to improve the structural stability of the top region 11. On the other hand, when the top region 11 is subjected to pressure, the thinner structure characteristics of the dimples 113 can deform before the top region 11. That is, the dimples 113 will be flattened outward or protrude outward, so that the pressure relief space inside the entire bottle cap body 1 becomes larger.
[0030] In another embodiment, the top region 11 can be further provided as a thin-walled area with a thickness smaller than the wall thickness of other positions of the bottle cap body 1, so that it is more easily deformed.
[0031] Please refer to Figure 2In some embodiments, the sealing assembly 2 can include the sealing gasket 21 and a collapsible pad (not shown in the figure) which is arranged between the top wall of the cap body 1 and the sealing gasket 21.
[0032] In the present application, the sealing assembly 2 can be composed of only the sealing gasket 21, or can include the sealing gasket 21 and a collapsible pad. Therefore, the collapsible pad is an optional arrangement. The collapsible pad is located between the cap body 1 and the sealing gasket 21, and can support and press the sealing gasket 21 to ensure that the sealing gasket 21 can seal the bottle opening together with the cap body 1. The support and dynamic adjustment of the sealing pressure of the collapsible pad can improve the sealing pressure of the sealing gasket 21, and when the pressure inside the bottle body increases, the pressure is effectively discharged through the sealing gasket 21 to complete the pressure relief through the top area 11.
[0033] In some embodiments, the material of the sealing gasket can be rubber, and the material of the collapsible pad can be foamed polyethylene, elastomer or degradable polymer.
[0034] Please refer to Figure 1 In some embodiments, the pressure relief gap 111 is arranged along the circumferential direction of the side wall of the top area 11 and is spaced apart from the sealing gasket 21.
[0035] In the present application, when the pressure relief gap 111 is in a non-pressure relief state, the opening degree is very small, which will not cause leakage of the internal liquid, thereby effectively ensuring the installation and use of the pressure relief cap 100. When the pressure relief cap 100 is in a pressure relief state, after the elastic expansion deformation of the top area 11, the opening degree of the pressure relief gap 111 increases, so as to be more conducive to the release of high-pressure gas through the pressure relief gap 111.
[0036] In some embodiments, the length of the pressure relief gap 111 can range from 5 to 10 mm, and the width can range from 0.1 to 0.3 mm.
[0037] In the present application, preferably, the length of the pressure relief gap 111 can be 8 mm, and the width can be 0.1 mm. The length direction of the pressure relief gap 111 is arranged in the circumferential direction of the outer peripheral wall of the cap body 1.
[0038] In some embodiments, the material of the cap body 1 is aluminum alloy, and the wall thickness of the cap body 1 ranges from 1 mm to 3 mm.
[0039] In the present application, preferably, the inner diameter of the cap can be 30 mm, the outer diameter can be 35 mm, and the height can be 15 mm. The thickness of the peripheral wall of the cap can be 2 mm.
[0040] In some embodiments, the thickness of the sealing assembly 2 ranges from 1 mm to 3 mm, and the fitting gap between the sealing assembly 2 and the inner peripheral wall of the cap body 1 ranges from 0.5 mm to 2 mm.
[0041] In the present application, preferably, the diameter of the gasket 21 can be 28mm and the thickness can be 2mm.
[0042] According to the second aspect of the present application, a beverage bottle is provided. The beverage bottle comprises the pressure relief bottle cap 100 described above.
[0043] In the above description of the present application, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected" or "linked" and the like should be understood in a broad sense. For example, as to the term "connected", it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or it can be internal communication of two elements or interaction relationship between two elements. Therefore, unless otherwise explicitly limited in the present application, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.
[0044] According to the above description of the present application, those skilled in the art can also understand the terms used as follows, for example, the terms indicating the orientation or positional relationship such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise" are based on the orientation or positional relationship shown in the drawings of the present application, which is only for the purpose of facilitating the description of the scheme of the present application and simplifying the description, and does not explicitly or implicitly indicate or suggest that the devices or elements involved must have the specific orientation, be constructed and operated in the specific orientation, therefore the above orientation or positional relationship terms cannot be understood or interpreted as a limitation on the scheme of the present application.
[0045] In addition, the terms "first" or "second" and the like used in the present application are terms used to refer to numbers or ordinal numbers only for the purpose of description, and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" or "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three or more, etc., unless otherwise explicitly specified and limited.
[0046] Although the embodiments of the present application have been shown and described herein, it should be apparent to those skilled in the art that the embodiments are provided by way of example. Many changes, modifications and substitutions can be made to the embodiments without departing from the spirit and scope of the present application. It should be understood that in the course of practicing the present application, various alternatives, modifications and equivalents can be used. It is the intention that the appended claims be construed to cover all such alternatives, modifications and equivalents.
Claims
1. A pressure relief bottle cap, characterized by, The bottle cap body and the sealing assembly are arranged on the top wall of the bottle cap body, and a pressure relief gap is formed on the top region of the side wall of the bottle cap body, which is located below the sealing assembly, wherein the side wall of the top region of the bottle cap body is configured as an elastic deformation area, which is configured to elastically expand when the internal pressure increases to a preset value.
2. The pressure relief bottle cap of claim 1, wherein, The side wall of the top region of the bottle cap body is configured as a wave-shaped structure or a corrugated structure, and at least one concave part is formed on the wave-shaped structure or the corrugated structure, which is arranged to be elastically expanded under the action of pressure.
3. The pressure relief bottle cap of claim 2, wherein, The top region of the outer peripheral side wall of the bottle cap body is uniformly distributed with a plurality of pits.
4. The pressure relief bottle cap of any one of claims 1-3, wherein, The sealing assembly comprises a sealing gasket and a collapsible pad, and the collapsible pad is arranged between the top wall of the bottle cap body and the sealing gasket.
5. The pressure relief bottle cap of claim 4, wherein, The material of the sealing gasket is rubber, and the material of the collapsible pad is foamed polyethylene, elastomer or degradable polymer.
6. The pressure relief bottle cap of claim 4, wherein, The pressure relief gap is close to the sealing gasket and is arranged along the circumferential direction of the side wall of the top region.
7. The pressure relief bottle cap of claim 6, wherein, The length of the pressure relief gap is 5-10 mm, and the width is 0.1-0.3 mm.
8. The pressure relief bottle cap of any one of claims 1-3, wherein, The material of the bottle cap body is aluminum alloy, and the wall thickness of the bottle cap body is 1-3 mm.
9. The pressure relief bottle cap of any one of claims 1-3, wherein, The thickness of the sealing assembly is 1-3 mm, and the fitting gap between the sealing assembly and the inner peripheral wall of the bottle cap body is 0.5-2 mm.
10. A beverage bottle characterized by The pressure relief bottle cap according to any one of claims 1-9.