Automatic pressure relief structure of a bubble bottle

Abstract

The utility model discloses a kind of automatic pressure relief structures of bubble bottle, including the bottle body for being connected on gas transmission host, gas transmission arm is equipped on gas transmission host, gas transmission arm is equipped with the gas transmission nozzle for conveying gas, bottle body top is connected with the bottle cap assembly for being closed, air inlet channel for being used to realize gas injection by being butt-jointed with gas transmission nozzle is equipped on bottle cap assembly, at least first air release channel is equipped on bottle cap assembly and correspondingly first pressure relief hole for being used to communicate first air release channel with bottle body inner cavity is equipped, first valve core is equipped in first air release channel, elastic component for pushing first valve core and closing first pressure relief hole, elastic component lower end abuts first valve core, elastic component upper end is exposed, and when gas transmission nozzle is butt-jointed with air inlet channel, elastic component upper end abuts on gas transmission arm, and then when bottle body leaves gas transmission arm, elastic component loses support, first valve core is separated from first pressure relief hole under the action of bottle pressure, realize automatic pressure relief, guarantee sealing performance and dismounting convenience.

Description

Technical Field

[0001] This utility model specifically relates to an automatic pressure relief structure for bubble bottles. Background Technology

[0002] With the increasing popularity of healthy eating concepts, consumers are placing higher demands on the functionality, taste diversity, and freshness of beverages. Sparkling beverages, with their refreshing and stimulating taste, good flavor carrying capacity, and rich natural nutrients when combined with fresh fruit and vegetable juices, are gradually becoming a popular beverage type in modern homes and offices. To meet users' demand for high-quality freshly prepared beverages, multi-functional kitchen appliances are rapidly developing towards intelligence and integration. Currently, most related equipment on the market sets up sparkling water making and juice blending functions separately, requiring users to operate different machines to complete the preparation process. This not only occupies a lot of space and has high operating costs, but also is cumbersome and fails to achieve the convenient "one-click" experience. Addressing this pain point, the inventor previously applied for a patent solution with patent number CN202510150542.5, entitled "An Integrated Sparkling Juicer". This patent proposes an innovative structure integrating stirring and carbonation functions. Its core lies in the design of a dedicated carbonated beverage bottle capable of withstanding internal pressure. This bottle allows for the injection of gases such as carbon dioxide during or after the juice is stirred, directly generating a complex beverage with both fruity aroma and effervescence. This design effectively integrates functions, significantly improving user convenience and enriching the drinking experience.

[0003] However, in actual use and maintenance, it was found that the sparkling beverage bottle still has certain limitations in terms of cleaning. Because its interior comes into direct contact with organic matter such as juice and pulp, long-term use can easily lead to the accumulation of sugar, protein, and other components. If not cleaned thoroughly and promptly, bacteria can easily grow, affecting drinking safety and hygiene. Therefore, this type of sparkling bottle must support frequent disassembly and cleaning, and may even require high-temperature washing or sterilization. This places higher demands on the maintainability of the bottle body, especially the cap assembly—users need to be able to quickly, safely, and conveniently disassemble and assemble the bottle with the main unit. How to achieve safe and automatic pressure relief of the sparkling bottle while ensuring high-pressure sealing performance has become a key technical challenge in improving the safety and user experience of this type of multi-functional beverage equipment.

[0004] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an automatic pressure relief structure for bubble bottles that ensures sealing performance and easy disassembly.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides an automatic pressure relief structure for a bubble bottle, including a bottle body for connection to a gas delivery unit. The gas delivery unit is provided with a gas delivery arm, and the gas delivery arm is provided with a gas delivery nozzle for delivering gas. A bottle cap assembly for sealing the top of the bottle body is connected to the top of the bottle body. The bottle cap assembly is provided with an air inlet channel for docking with the gas delivery nozzle to realize gas injection. The bottle cap assembly is provided with at least a first venting channel and a corresponding first pressure relief hole connecting the first venting channel to the inner cavity of the bottle body. The first venting channel is provided with a first valve core and an elastic component for pushing the first valve core against and sealing the first pressure relief hole. The lower end of the elastic component abuts against the first valve core, and the upper end of the elastic component is exposed. When the gas delivery nozzle docks with the air inlet channel, the upper end of the elastic component abuts against the gas delivery arm. Then, when the bottle body leaves the gas delivery arm, the elastic component loses its support, and the first valve core disengages from the first pressure relief hole under the pressure inside the bottle, realizing automatic pressure relief.

[0008] As described above, in the automatic pressure relief structure of the bubble bottle, the first venting channel includes a valve core cavity section with a larger diameter and a limiting section with a smaller diameter. The first pressure relief hole communicates with the valve core cavity section. The first valve core is located in the valve core cavity section. The elastic component is a stepped spring, which includes a large-diameter section and a small-diameter section. The large-diameter section is located inside the valve core cavity section and abuts against the first valve core. The small-diameter section passes through the limiting section and extends to the outside of the bottle cap assembly.

[0009] As described above, the automatic pressure relief structure for the bubble bottle includes a first venting channel comprising a valve core cavity section with a larger diameter and a limiting section with a smaller diameter. The first pressure relief hole communicates with the valve core cavity section, and the first valve core is located within the valve core cavity section. The elastic component includes a stepped spring and a button. The button is slidably connected to the bottle cap assembly. The stepped spring includes a large-diameter section and a small-diameter section. The large-diameter section is located within the valve core cavity section and abuts against the first valve core. The small-diameter section passes through the limiting section and abuts against the button.

[0010] As described above, the automatic pressure relief structure for the bubble bottle has a pressing hole at the top of the bottle cap assembly, the upper part of the button is inserted into the pressing hole and slidably engaged therewith, and the lower part of the button is provided with a button base, which is snapped into the lower part of the pressing hole.

[0011] As described above, the automatic pressure relief structure for the bubble bottle includes a second venting channel on the bottle cap assembly and a second pressure relief hole that connects the second venting channel to the inner cavity of the bottle. The second venting channel contains a second valve core and an elastic element for pushing the second valve core against and closing the second pressure relief hole.

[0012] As described above, the automatic pressure relief structure for a bubble bottle includes a bottle cap assembly comprising a bottle cap seat, an outer valve seat, an inner valve seat, and a top cover. The bottle cap seat is connected to the bottle body and together with the bottle body clamps and fixes the outer valve seat. The outer valve seat has an installation groove, and the inner valve seat is disposed in the installation groove. The top cover is detachably connected to the bottle cap seat and presses the inner valve seat against the bottom of the installation groove. The inner valve seat and the outer valve seat together define the valve core cavity section, and the limiting section is formed on the inner valve seat.

[0013] As described above, the automatic pressure relief structure for the bubble bottle includes an inner valve seat with an upwardly extending upper support and a downwardly extending lower support, with their positions corresponding to each other. The inner valve seat contains a first channel segment, the upper end of which passes through the upper support to form an opening, and the lower end extends and terminates at the lower end of the lower support. The lower end of the lower support has an air injection hole communicating with the first channel segment. The top cover presses against the top of the upper support, and the top cover has a second channel segment that corresponds to the position of the first channel segment. The first channel segment and the second channel segment are connected to each other, together forming the air intake channel.

[0014] As described above, the automatic pressure relief structure for the bubble bottle has an injection pipe extending into the bottle body on the outer valve seat, the lower support extending into the injection pipe, and an anti-reverse valve sleeve fitted on the lower support. The anti-reverse valve sleeve covers and seals the injection hole, forming a one-way air intake structure.

[0015] As described above, the automatic pressure relief structure for the bubble bottle has a pressing hole on the top cover for a stepped spring or button to pass through.

[0016] As described above, in the automatic pressure relief structure for bubble bottles, the first valve core includes a valve core support and a valve core sleeve fitted around the outer periphery of the valve core support.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This invention achieves an automatic pressure relief function of "instant release upon disassembly," significantly improving safety. It cleverly utilizes the supporting role of the gas delivery unit on the elastic components to construct a "controlled release" mechanism: when the bottle is installed on the unit, the gas delivery arm provides support, maintaining the seal of the pressure relief channel; once the bottle is removed, the support disappears, and the internal air pressure automatically opens the valve core to complete the pressure relief. This design links the user's disassembly action with the pressure relief process, achieving rapid air release without additional operation. It completely avoids safety hazards such as liquid splashing and component ejection caused by forcibly opening the cap under high pressure, solving the safety risks caused by misoperation in traditional bubble bottles.

[0019] 2. The structure is highly integrated, with a sensitive and reliable response, balancing sealing performance and ease of maintenance. The pressure relief mechanism adopts a modular design with a stepped spring and a split valve seat, using an exposed small-diameter section for external support and transmission. The structure is simple and compact, with few parts and high reliability. The first valve core uses a "hard core, soft sleeve" composite structure, ensuring both pressure resistance and flexible sealing. Combined with guide ribs and a multi-stage channel design, it ensures smooth movement, prevents jamming, and maintains a long-lasting seal. The overall structure meets the sealing requirements of high-pressure carbonation (3-6 bar) while supporting frequent disassembly and cleaning, perfectly balancing high-pressure sealing performance with the convenience of daily cleaning and maintenance.

[0020] 3. Supports functional expansion and differentiated control, enhancing product applicability and intelligence. An optional second venting channel creates a dual-channel redundancy design, supporting main / auxiliary pressure relief, fast / slow pressure relief, or manual / automatic mode switching to meet the application needs of containers with different capacities and pressure levels. The dual-valve structure improves system safety redundancy, ensuring normal pressure relief even if a single channel fails. It also facilitates future upgrades to intelligent detection or graded exhaust control, making it suitable for various platforms such as home soda fountains, aerosol dispensers, and multi-functional beverage machines, possessing excellent scalability and industrialization prospects. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the bubble bottle structure in Example 1;

[0022] Figure 2 This is a cross-sectional schematic diagram of the bubble bottle structure in Embodiment 1;

[0023] Figure 3 This is an exploded view of the bubble bottle structure in Example 1. Figure 1 ;

[0024] Figure 4 This is an exploded view of the bubble bottle structure in Example 1. Figure 2 ;

[0025] Figure 5 This is an exploded view of the first valve core in Embodiment 1;

[0026] Figure 6 This is a cross-sectional schematic diagram of the bubble bottle structure in Example 2;

[0027] Figure 7 This is a cross-sectional schematic diagram of the bubble bottle structure in Example 3. Detailed Implementation

[0028] The utility model will be further described below with reference to the accompanying drawings:

[0029] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0030] Example 1

[0031] This embodiment describes an automatic pressure relief structure for a bubble bottle, such as... Figures 1 to 4 As shown, the device includes a bottle body 1 for connection to a gas delivery unit A. The gas delivery unit A has a gas delivery arm A1, and the gas delivery arm A1 has a gas delivery nozzle A11 for delivering gas. A bottle cap assembly 2 for sealing the bottle body 1 is connected to the top of the bottle body 1. The bottle cap assembly 2 has an air inlet channel 3 for engaging with the gas delivery nozzle A11 to achieve gas injection. The bottle cap assembly 2 has at least a first venting channel 4 and correspondingly a first pressure relief hole 40 communicating with the inner cavity of the bottle body 1. The first venting channel 4 is provided with a first valve core 21 and an elastic component 22 for pushing the first valve core 21 against and closing the first pressure relief hole 40. The lower end of the elastic component 22 abuts against the first valve core 21, and the upper end of the elastic component 22 is exposed. When the gas supply nozzle A11 is connected to the air inlet channel 3, the upper end of the elastic component 22 abuts against the gas supply arm A1. Then, when the bottle 1 leaves the gas supply arm A1, the elastic component 22 loses its support, and the first valve core 21 disengages from the first pressure relief hole 40 under the pressure inside the bottle, thereby achieving automatic pressure relief. Using the gas inlet A11 as the support end of the elastic component 22, a "controlled release" pressure relief mechanism is formed. This design is based on the physical logic of "external support maintaining the seal, and the disappearance of the support triggering pressure relief." When the bottle is installed on the main unit, the gas inlet arm A1 applies a downward reaction force to the elastic component 22, causing the first valve core 21 to continuously press against the first pressure relief hole 40 under the action of elasticity, achieving a reliable seal. Once the bottle is removed, the support point disappears, the elastic component 22 rebounds, and the pressing force is released. At this time, the positive pressure gas inside the bottle pushes the first valve core 21 from bottom to top, forcing it to disengage from the first pressure relief hole 40, thereby opening the first gas relief channel 4 to complete the pressure relief. This linkage mechanism does not require additional buttons or rotating mechanisms, improving safety and user experience. The structure is simple and reliable, and pressure relief can be triggered simply by removing the bottle, without the need for complex mechanical linkages; the pressure relief response is rapid, relying on the gas pressure inside the bottle to automatically push the valve core, and the response is sensitive; it is suitable for applications that require frequent filling and discharging, such as carbonated beverages, aerosols, and home soda makers. This structure enables an intelligent operation mode of "plug and seal, unplug and depressurize", which significantly reduces the risk of user misoperation. It is especially suitable for use by the elderly and children in the family, and has high safety, strong reliability and excellent human-computer interaction experience.

[0032] like Figure 3 and Figure 4 As shown, in this embodiment, the first venting channel 4 includes a valve core cavity section 41 with a larger diameter and a limiting section 42 with a smaller diameter. The first pressure relief hole 40 communicates with the valve core cavity section 41. The first valve core 21 is located in the valve core cavity section 41. The elastic component 22 is a stepped spring, which includes a large-diameter section 221 and a small-diameter section 222. The large-diameter section 221 is located inside the valve core cavity section 41 and abuts against the first valve core 21. The small-diameter section 222 passes through the limiting section 42 and extends to the outside of the bottle cap assembly 2. This allows the upper end of the small-diameter section 222 to abut against the gas delivery arm A1. This stepped spring structure, combined with the limiting section 42, forms a precise guiding system: the large-diameter section 221 provides the main elastic force output, ensuring the first valve core 21 is sealed stably; the small-diameter section 222 passes through the limiting section 42 and plays an axial guiding role, preventing the spring from deflecting or becoming unstable, and improving the consistency of movement and the reliability of the seal. Meanwhile, the exposed design of the small-diameter section 222 facilitates direct contact with the air delivery arm A1, enabling the linkage control of "external support - internal sealing". This structure has high space utilization, achieving dual-function integration (elastic output + external connection) within a limited assembly space. It is also easy to assemble, durable, and effectively avoids jamming or wear problems caused by spring misalignment.

[0033] As a preferred option, such as Figure 3 and Figure 4 As shown, the bottle cap assembly 2 is also provided with a second venting channel 5 and a corresponding second pressure relief hole 50 connecting the second venting channel 5 to the inner cavity of the bottle body 1. The second venting channel 5 contains a second valve core 23 and an elastic element 24 for pushing the second valve core 23 against and closing the second pressure relief hole 50. Alternatively, the second venting channel 5 and the second valve core 24 can be omitted. Furthermore, the structure of the second valve core 24 can be different from that of the first valve core 21, representing an optimized solution, and different pressure relief valve structures can be used. Setting dual venting channels (first venting channel 4 and second venting channel 5) can achieve redundant pressure relief or differentiated pressure relief control. For example, the two channels can be set with different opening pressures, or used for manual and automatic pressure relief modes respectively. The dual valve core design enhances pressure relief capacity, especially suitable for large-capacity or high-pressure containers. Even if one channel fails, the other can still function normally, improving safety. The dual-channel design improves pressure relief efficiency and system redundancy; it supports differentiated function configurations (such as main / auxiliary pressure relief, fast / slow pressure relief); it enhances product adaptability and can be used on multi-specification gas cylinder platforms; the structure is highly scalable, facilitating subsequent functional upgrades. By adjusting the preload or valve port size of the second valve core 23, a tiered pressure relief strategy can be implemented. For example, the first channel can be used for rapid daily pressure relief, while the second channel serves as an emergency backup channel, significantly improving the system's safety redundancy and operational flexibility.

[0034] Detailed structure as follows Figure 3 and Figure 4As shown, the bottle cap assembly 2 includes a bottle cap seat 25, an outer valve seat 26, an inner valve seat 27, and a top cover 28. The bottle cap seat 25 is connected to the bottle body 1 and clamps and fixes the outer valve seat 26 between the bottle body 1 and the bottle cap seat 25. The outer valve seat 26 has a mounting groove 260, and the inner valve seat 27 is disposed in the mounting groove 260. The top cover 28 is detachably connected to the bottle cap seat 25 and presses the inner valve seat 27 against the bottom of the mounting groove 260. The inner valve seat 27 and the outer valve seat 26 together define the valve core cavity section 41, and the limiting section 42 is formed on the inner valve seat 27. Preferably, a sealing gasket 201 can be provided between the bottle body 1 and the outer valve seat 26. This structure provides a stable and secure connection and facilitates installation and disassembly. The bottle cap assembly 2 adopts a modular, split-structure design: the bottle cap seat 25 serves as the main load-bearing component and is connected to the bottle body 1 via threads or snap-fit; the outer valve seat 26 is embedded and fixed at the bottle mouth, providing a basic sealing surface; the inner valve seat 27 is nested in the mounting groove 260 of the outer valve seat 26 and is pressed and positioned from above by the top cover 28, thus forming a stable multi-layer sealing structure. The valve core cavity 41 is formed by the inner and outer valve seats, ensuring smooth movement of the first valve core 21. The sealing gasket 201 further enhances the static sealing performance between the bottle body and the bottle cap, preventing gas leakage along the threads. The collaborative assembly of multiple components improves the overall structural strength and sealing reliability; the modular design facilitates production, quality control, and subsequent maintenance; the sealing gasket 201 enhances the overall airtightness and is suitable for high-pressure environments; the mating method of the inner and outer valve seats facilitates precision injection molding, reducing manufacturing difficulty. This modular architecture achieves functional decoupling and process optimization, allowing each component to be processed, selected, and inspected independently, significantly improving production consistency and yield, while also facilitating subsequent maintenance or replacement of vulnerable parts.

[0035] More specifically, the inner valve seat 27 is provided with an upwardly extending upper support column 271 and a downwardly extending lower support column 272 corresponding to the upper support column 271. The inner valve seat 27 is provided with a first channel segment 270, the upper end of which passes through the upper support column 271 and opens, and the lower end extends and terminates at the lower part of the lower support column 272. The lower part of the lower support column 272 is provided with an injection hole 273 communicating with the first channel segment 270. The top cover 28 is pressed against the top of the upper support column 271. The top cover 28 is provided with a second channel segment 280 corresponding to the first channel segment 270. The first channel segment 270 and the second channel segment 280 are connected to form the air intake channel 3, for the insertion of an injection pipe or injection structure to inject gases such as carbon dioxide. The upper support column 271 and the lower support column 272 form the upper and lower connection nodes of a through-type injection conduit. The first channel segment 270 is located inside the inner valve seat 27, and the second channel segment 280 is located in the top cover 28. When aligned, they form a complete air intake channel 3. When the top cover 28 is installed in place, the two channels automatically align and connect. During inflation, external air enters through this channel and is introduced into the bottle via the inflation port 273. This structure achieves the dual functions of "dynamic sealing + static conduction". The segmented air intake channel facilitates independent processing and assembly of each component; the inflation path is clear, with low resistance, which is conducive to efficient inflation; the top cover participates in the formation of the air intake channel, resulting in high structural integration; the support structure enhances local strength and prevents deformation during inflation. This split channel design not only ensures assembly accuracy but also improves safety—the air intake channel is only connected after the top cover 28 is fully locked, avoiding the risk of inflation without load. At the same time, the smooth inner wall of the channel has no dead corners, reducing gas flow resistance and improving inflation efficiency.

[0036] Preferably, the outer valve seat 26 is provided with an injection pipe 261 extending into the bottle body 1, and the lower support 272 extends into the injection pipe 261. An anti-reverse valve sleeve 29 is fitted onto the lower support 272, covering and sealing the injection hole 273 to form a one-way air intake structure. This structure allows air to enter by pressure pushing open the anti-reverse valve sleeve 29, while preventing the gas inside the bottle from pushing it open, thus achieving one-way air intake. The anti-reverse valve sleeve 29 is typically made of flexible silicone or rubber, and normally fits tightly against the injection hole 273 to form a seal. When external gas is injected, the airflow pressure overcomes the elasticity of the sleeve, causing it to deform and open, allowing gas to flow into the bottle. When the pressure inside the bottle is higher than outside, the gas presses against the sleeve, making it seal the injection hole 273 more tightly, thereby achieving the one-way valve function. The lower support 272 is inserted into the injection pipe 261, ensuring coaxial alignment and improving sealing reliability. Effectively prevents gas backflow from the bottle, ensuring long-lasting carbonation; requires no additional springs or complex mechanisms, resulting in low cost and high reliability; the flexible valve sleeve offers excellent self-sealing performance, suitable for various gas media; maintenance is convenient, and the entire valve sleeve can be replaced when necessary. This springless one-way valve structure achieves self-closing through the combined effect of material elasticity and gas pressure, possessing advantages such as strong anti-contamination capability, long lifespan, and convenient maintenance, making it particularly suitable for food-grade gas applications.

[0037] like Figure 3 and Figure 4 As shown, the top cover 28 is provided with a pressing hole 281 for the small-diameter section 222 of the stepped spring to extend upward. This pressing hole 281 not only provides an axial movement channel for the small-diameter section 222, but also serves as a guide and limiter, preventing lateral displacement of the spring and ensuring stable movement trajectory. Simultaneously, this hole also reserves an interface for future functional expansion, such as the addition of buttons or sensor probes, facilitating manual pressure relief or status detection functions.

[0038] Preferably, the first valve core 21 includes a valve core support 211 and a valve core sleeve 212 fitted around the outer periphery of the valve core support 211. This allows the first valve core 21 to be made of a combination of different materials. For example, the valve core support 211 can be made of a high-hardness plastic material, while the valve core sleeve 212 can be made of a soft and elastic silicone material, thus ensuring both support and sealing performance. Preferably, the outer wall of the valve core sleeve 212 is provided with an axially arranged guide rib 213. The composite first valve core 21 adopts a "hard core, soft sleeve" structure: the valve core support 211 provides structural strength and a connection base, and withstands spring pressure; the valve core sleeve 212 is responsible for fitting with the first sealing surface 400 to achieve a flexible seal. The guide rib 213 is arranged axially and contacts the inner wall of the valve core cavity 41 during the up-and-down movement of the first valve core 21, playing a guiding and anti-rotation role and preventing uneven wear of the sealing surface. The composite material design balances strength and sealing performance, extending service life; the guide ribs 213 reduce motion friction and prevent jamming; improve the smoothness of valve core movement, ensuring consistent pressure relief actions; and facilitate the replacement of vulnerable parts (such as valve core sleeves), reducing maintenance costs. This design fully leverages the advantages of different materials to achieve the optimal match of "rigid support + flexible sealing," while the guide ribs effectively prevent valve core rotation or tilting, ensuring uniform contact of the sealing surface and enhancing long-term stability and reliability.

[0039] Example 2

[0040] The differences from Embodiment 1 include, but are not limited to, the elastic component 22 in Embodiment 1 being a stepped spring, while the elastic component 22 in this embodiment consists of a stepped spring and a button component 223, such as... Figure 6 As shown, the first venting channel 4 includes a valve core cavity section 41 with a larger diameter and a limiting section 42 with a smaller diameter. The first pressure relief hole 40 communicates with the valve core cavity section 41. The first valve core 21 is located in the valve core cavity section 41. The elastic component 22 includes a stepped spring and a button 223. The button 223 is slidably connected to the bottle cap assembly 2. The stepped spring includes a large-diameter section 221 and a small-diameter section 222. The large-diameter section 221 is located in the valve core cavity section 41 and abuts against the first valve core 21. The small-diameter section 222 passes through the limiting section 42 and abuts against the button 223. This structure upgrades the original "passive pressure relief" mechanism, which relies on host support, to an actively triggered "manual pressure relief" mode: when the user presses the button 223, the pressure is transmitted through the small-diameter section 222 to compress the stepped spring, releasing the clamping force on the first valve core 21. The gas in the bottle then pushes the valve core to open and relieve pressure; after releasing, the spring returns to its original position, and the valve core re-seals. This design gives users greater operational freedom, allowing them to manually depressurize at any time, regardless of whether it is installed on the host, thus improving the flexibility of use and the human-computer interaction experience.

[0041] As a preferred option, such as Figure 6As shown, the bottle cap assembly 2 has a pressing hole 281 at its top. The upper part of the button component 223 passes through the pressing hole 281 and slides in cooperation with it. The lower part of the button component 223 has a button base 224, which is snapped into the lower part of the pressing hole 281. The pressing hole 281 provides precise axial guidance for the button component 223, ensuring smooth vertical movement. The button base 224 is fixed in place by snapping, preventing it from falling off. The structure is simple and reliable, and it is easy to automate assembly. The overall appearance is neat, and the exposed part of the button is easy to identify and operate, conforming to ergonomic design principles.

[0042] Example 3

[0043] The differences from Embodiment 1 include, but are not limited to, the fact that in Embodiment 1, the upper end of the small diameter section 222 of the stepped spring is exposed, while in this embodiment, the upper end of the small diameter section 222 of the stepped spring is covered with a soft sleeve 224, preferably a silicone sleeve, such as... Figure 7 As shown, this structure serves both aesthetic and protective purposes for the stepped spring.

[0044] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A structure for automatic pressure relief of a gas cylinder, characterized by: The system includes a bottle body (1) for connection to a gas delivery unit (A), the gas delivery unit (A) having a gas delivery arm (A1) and a gas delivery nozzle (A11) for delivering gas. A bottle cap assembly (2) for sealing the bottle body (1) is connected to the top of the bottle body (1). The bottle cap assembly (2) has an air inlet channel (3) for engaging with the gas delivery nozzle (A11) to achieve gas injection. The bottle cap assembly (2) has at least a first venting channel (4) and correspondingly a first pressure relief hole (40) connecting the first venting channel (4) to the inner cavity of the bottle body (1). The first venting channel (4) is provided with a first valve core (21) and an elastic component (22) for pushing the first valve core (21) against and closing the first pressure relief hole (40). The lower end of the elastic component (22) abuts against the first valve core (21), and the upper end of the elastic component (22) is exposed. When the gas nozzle (A11) is connected to the air inlet channel (3), the upper end of the elastic component (22) abuts against the gas delivery arm (A1). Then, when the bottle (1) leaves the gas delivery arm (A1), the elastic component (22) loses its support, and the first valve core (21) disengages from the first pressure relief hole (40) under the pressure inside the bottle, thus achieving automatic pressure relief.

2. The automatic pressure relief structure for a gas cylinder according to claim 1, wherein: The first venting channel (4) includes a valve core cavity section (41) with a larger diameter and a limiting section (42) with a smaller diameter. The first pressure relief hole (40) is connected to the valve core cavity section (41). The first valve core (21) is located in the valve core cavity section (41). The elastic component (22) is a stepped spring. The stepped spring includes a large diameter section (221) and a small diameter section (222). The large diameter section (221) is located in the valve core cavity section (41) and abuts against the first valve core (21). The small diameter section (222) passes through the limiting section (42) and extends to the outside of the bottle cap assembly (2).

3. The gas-bubble bottle automatic pressure relief structure according to claim 1, characterized by: The first venting channel (4) includes a valve core cavity section (41) with a larger diameter and a limiting section (42) with a smaller diameter. The first pressure relief hole (40) is connected to the valve core cavity section (41). The first valve core (21) is located in the valve core cavity section (41). The elastic component (22) includes a stepped spring and a button (223). The button (223) is slidably connected to the bottle cap assembly (2). The stepped spring includes a large diameter section (221) and a small diameter section (222). The large diameter section (221) is located in the valve core cavity section (41) and abuts against the first valve core (21). The small diameter section (222) passes through the limiting section (42) and abuts against the button (223).

4. The automatic pressure relief structure for a gas cylinder according to claim 3, characterized by: The bottle cap assembly (2) has a pressing hole (281) on the top. The upper part of the button (223) passes through the pressing hole (281) and slides with it. The lower part of the button (223) has a button base (224) which is snapped into the lower part of the pressing hole (281).

5. A champagne bottle automatic pressure relief structure according to any one of claims 2 or 3, characterized in that: The bottle cap assembly (2) is also provided with a second venting channel (5) and a second pressure relief hole (50) that connects the second venting channel (5) with the inner cavity of the bottle body (1). The second venting channel (5) is provided with a second valve core (23) and an elastic element (24) for pushing the second valve core (23) against and closing the second pressure relief hole (50).

6. A champagne bottle automatic pressure relief structure according to any one of claims 2 or 3, characterized in that: The bottle cap assembly (2) includes a bottle cap seat (25), an outer valve seat (26), an inner valve seat (27), and a top cover (28). The bottle cap seat (25) is connected to the bottle body (1) and together with the bottle body (1) clamps and fixes the outer valve seat (26). The outer valve seat (26) is provided with an installation groove (260). The inner valve seat (27) is located in the installation groove (260). The top cover (28) is detachably connected to the bottle cap seat (25) and presses the inner valve seat (27) against the bottom of the installation groove (260). The inner valve seat (27) and the outer valve seat (26) together define the valve core cavity section (41). The limiting section (42) is opened on the inner valve seat (27).

7. The gas-bubble bottle automatic pressure relief structure according to claim 6, characterized by: The inner valve seat (27) is provided with an upwardly extending upper support column (271) and a downwardly extending lower support column (272), and the two are in corresponding positions. The inner valve seat (27) is provided with a first channel segment (270), the upper end of which passes through the upper support column (271) to form an opening, and the lower end extends and terminates at the lower end of the lower support column (272). The lower end of the lower support column (272) is provided with an air injection hole (273) communicating with the first channel segment (270). The top cover (28) is pressed against the top of the upper support column (271). The top cover (28) is provided with a second channel segment (280), which is in corresponding position to the first channel segment (270). The first channel segment (270) and the second channel segment (280) are connected to each other and together form the air intake channel (3).

8. The gas-bubble bottle automatic pressure relief structure according to claim 7, characterized by: The outer valve seat (26) is provided with an injection pipe that extends into the bottle body (1). The lower support (272) extends into the injection pipe. The lower support (272) is fitted with an anti-reverse valve sleeve (29). The anti-reverse valve sleeve (29) covers and seals the injection hole (273) to form a one-way air intake structure.

9. The gas cylinder automatic pressure relief structure according to claim 6, characterized by: The top cover (28) is provided with a pressing hole (281) through which a stepped spring or a button (223) passes.

10. A champagne bottle automatic pressure relief structure according to any one of claims 2 or 3, characterized in that: The first valve core (21) includes a valve core support (211) and a valve core sleeve (212) sleeved on the outer periphery of the valve core support (211).

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