Gas cylinder with pressure valve

Abstract

The utility model relates to a gas cylinder with a pressure valve. The utility model relates to a pressure valve which comprises a bottle body, a pressure valve is arranged at an opening position of the bottle body, the pressure valve comprises a valve core, a compression spring, a valve body and a valve plug, when the pressure valve is installed, the valve core and the compression spring are sequentially inserted into a cavity of the valve body from a bottom opening of the valve body, and the valve plug is connected to the bottom opening of the valve body through threads. The core rod is located in the upper cavity and the middle transition channel, the core neck, the polygonal plug column and the spring sleeve column are located in the lower cavity, the upper portion of the compression spring abuts against the spring sleeve column, and the lower portion of the compression spring abuts against the inner face of the valve plug. In the ventilation state, the valve element moves downwards under the external pressing acting force, the top face of the polygonal plug column of the valve element leaves the wedge-shaped sealing face, and the sight line of the valve body is ventilated vertically. By adopting the structure, the utility model has the characteristics of low cost, few parts, easiness in assembly and excellent sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the gas cylinder equipment technical field with pressure valve, especially a gas cylinder with pressure valve which is convenient to disassemble and assemble and has accurate gas outlet control. BACKGROUND

[0002] In beverage consumption places such as milk tea shops and coffee shops, in order to improve the sugar-free taste of beverages, merchants need to inject specific gas into the beverages. This process requires a gas cylinder that can accurately control gas charging and discharging. However, existing gas charging cylinders usually use large steel cylinder structures, with complex valve body designs and specialized high-pressure valves, resulting in high costs and unsuitability for the rapid gas charging needs of daily beverages. This design not only increases the difficulty of maintaining the equipment, but also limits its application in small beverage shops. Therefore, a gas cylinder with a simple design, fewer components, low cost, easy assembly, and good sealing effect is needed to meet the actual needs of beverage gas charging. SUMMARY

[0003] The utility model provides a kind of gas cylinder with pressure valve for the above deficiencies, with simple design, fewer components, low cost, easy assembly and good sealing effect.

[0004] The utility model provides a kind of gas cylinder with pressure valve, comprising:

[0005] A valve core, which is integrally formed from top to bottom with a core rod, a core neck, a polygon plug column and a spring sleeve column;

[0006] A compression spring for sleeving on the spring sleeve column;

[0007] A valve body with an upper and lower communicating cavity, which includes an upper cavity, a middle transition channel and a lower cavity, forms a wedge-shaped sealing surface between the lower cavity and the middle transition channel, and the bottom opening of the valve body is provided with internal threads;

[0008] A valve plug with external threads on it;

[0009] During installation, the valve core and the compression spring are inserted into the cavity of the valve body from the bottom opening of the valve body, and the valve plug is connected by threads at the bottom opening of the valve body. The core rod is located at the upper cavity and the middle transition channel, the core neck, the polygon plug column and the spring sleeve column are located in the lower cavity, the upper part of the compression spring is seated on the spring sleeve column, and the lower part of the compression spring is seated on the inner surface of the valve plug. In the normal sealing state, the compression spring exerts a force on the top surface of the polygon plug column of the valve core to form a seal. In the ventilation state, the valve core is displaced downward under the external downward pressure, and the top surface of the polygon plug column of the valve core moves away from the wedge-shaped sealing surface to achieve the ventilation of the valve body.

[0010] The cross-sectional diameter of the lower cavity is greater than the cross-sectional diameter of the upper cavity, and the cross-sectional diameter of the upper cavity is greater than the cross-sectional diameter of the middle transition passage.

[0011] The upper opening of the valve body is provided with a limiting circular truncated cone cavity, the cross-sectional diameter of the limiting circular truncated cone cavity is greater than the cross-sectional diameter of the upper cavity, and a limiting snap ring is arranged on the top of the core rod; in the ventilation state, when the valve core is displaced downward under the external downward pressure, the limiting snap ring is limited on the step position where the limiting circular truncated cone cavity and the upper cavity are communicated.

[0012] The outer shape structure of the valve body comprises a lower threaded column, a middle clamping annular groove and an upper annular groove, and the opening of the bottle body is provided with an internal thread; during assembly, the valve body is threadedly connected to the opening of the bottle body through the lower threaded column.

[0013] The top of the lower threaded column is provided with a lower sealing ring for sealing the opening position of the bottle body.

[0014] One side of the middle clamping annular groove is formed in a lateral "concave" structure, and the middle clamping annular groove is used for clamping an external clamping structure.

[0015] An upper sealing ring is clamped in the upper annular groove, and the upper sealing ring is used for sealing the gas cylinder and the equipment connected with the gas cylinder.

[0016] The valve body and the valve core are both made of metal materials.

[0017] After the above structure is adopted, the gas cylinder with the pressure valve is provided, which is simple in design and high in efficiency. The bottle body of the gas cylinder is provided with the pressure valve, so that the stability and the sealing property under various states are ensured. The cavity in the valve body is communicated with the upper and lower cavities, so that the gas can be safely and quickly filled and discharged. Under normal conditions, the elastic force of the compression spring presses the top surface of the valve core against the wedge-shaped sealing surface, so that the gas leakage is prevented. When the gas needs to be injected, the valve core is displaced downward under the external downward pressure, so that the gas can smoothly pass through the valve body. The structure design ensures the accuracy of the gas flow, and meets the needs of the milk tea shop and the coffee shop for improving the taste of the sugar-free beverage. In addition, the valve body is threadedly connected to the bottle body through the lower threaded column, so that the assembly is convenient. The sealing effect of the sealing ring at the connection position of the gas cylinder and the equipment is enhanced. Therefore, the novel gas cylinder meets the needs of the market for the high-efficiency gas control equipment with low cost, few components, easy assembly and excellent sealing property. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional structure schematic view of the utility model;

[0019] Figure 2 is Figure 1 the A part local structure amplification schematic view in the

[0020] Figure 3 is a three-dimensional structure exploded schematic view of the utility model;

[0021] Figure 4 is a three-dimensional exploded structure schematic view of the pressure valve of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings Figures 1-4 The specific embodiment of the utility model is further explained in detail.

[0023] The embodiment provides a gas cylinder with a pressure valve, comprising:

[0024] A valve core 21 is integrally formed from top to bottom with a core rod 211, a core neck 212, a polygonal plug column 213 and a spring sleeve column 214;

[0025] A compression spring 22 is used for sleeving on the spring sleeve column 214;

[0026] A valve body 23 is provided with an upper and lower communicating cavity, which comprises an upper cavity 231, a middle transition channel 232 and a lower cavity 233, and the lower cavity 233 and the middle transition channel 232 form a wedge-shaped sealing surface 234, and the bottom opening 235 of the valve body 23 is provided with an internal thread;

[0027] A valve plug 24 is provided with an external thread 241;

[0028] During installation, the valve core 21 and the compression spring 22 are sequentially inserted into the cavity of the valve body 23 from the bottom opening 235 of the valve body 23, and the valve plug 24 is connected by threads on the bottom opening 235 of the valve body 23, wherein the core rod 21 is located at the position of the upper cavity 231 and the middle transition channel 232, the core neck 212, the polygonal plug column 213 and the spring sleeve column 214 are located in the lower cavity 233, the upper part of the compression spring 22 is arranged on the spring sleeve column 214, and the lower part of the compression spring 22 is arranged on the inner surface of the valve plug 24; in the normal sealing state, the elastic force of the compression spring 22 presses the top surface of the polygonal plug column 213 of the valve core 21 on the wedge-shaped sealing surface 234 to form a seal; in the ventilation state, the valve core 21 is displaced downwardly under the external downward pressure, and the top surface of the polygonal plug column 213 of the valve core 21 is separated from the wedge-shaped sealing surface 234 to realize the upper and lower ventilation of the valve body 23.

[0029] The cross-sectional diameter of the lower cavity 233 is greater than the cross-sectional diameter of the upper cavity 231, and the cross-sectional diameter of the upper cavity 231 is greater than the cross-sectional diameter of the middle transition channel 232.

[0030] The valve body 23 is provided with a limiting circular table cavity 236, which has a larger cross-sectional diameter than the upper cavity 231. A limiting snap ring 215 is arranged on the top of the core rod 211. When the valve core 21 is displaced downward under the external downward pressure, the limiting snap ring 215 is clamped on the step position of the limiting circular table cavity 236 and the upper cavity 231.

[0031] The outer shape of the valve body 23 includes a lower threaded column 237, a middle clamping annular groove 238, and an upper annular groove 239. The opening 11 of the bottle body 10 is provided with an internal thread. When assembled, the valve body 23 is threadedly connected to the opening 11 of the bottle body 10 through the lower threaded column 237.

[0032] The top of the lower threaded column 237 is provided with a lower sealing ring 25 for sealing the opening 11 of the bottle body 10.

[0033] The side cross-section of the middle clamping annular groove 238 is shaped as a lateral concave structure, which is used for external clamping structures.

[0034] The upper annular groove 239 is provided with an upper sealing ring 26, which is used for sealing the gas cylinder 10 and the equipment connected to the gas cylinder 10.

[0035] The valve body 23 and the valve core 21 are both made of metal materials.

[0036] When the gas needs to be released, the external downward pressure is applied to the valve core 21, causing the valve core 21 to be displaced downward against the elastic force of the compression spring 22. In this process, the top surface of the polygonal plug column 213 of the valve core 21 gradually separates from the wedge-shaped sealing surface 234 of the valve body 23. As the valve core 21 moves downward, the gas flows from the bottle body 10 to the upper cavity 231 through the lower cavity 233 of the valve body 23 and the middle transition channel 232, and finally escapes from the pressure valve 20.

[0037] During the gas release process, the limiting snap ring 215 plays a limiting role, ensuring that the valve core 21 can move stably under pressure and preventing it from exceeding the designed range. In the venting state, the compression spring 22 is compressed, so that the valve core 21 remains in the appropriate displacement position, further ensuring the smooth release of the gas. Through this series of dynamic changes, the gas cylinder 10 can accurately adjust and release the internal gas without leakage.

[0038] The gas flows outwards through the cavity passage of the valve body 23, while the upper sealing ring 26 keeps good sealing with the gas cylinder 10 interface equipment, ensuring safety and effectiveness during use.

[0039] Therefore, the utility model has the characteristics of low cost, few components, easy assembly and excellent sealing.

[0040] Of course, the utility model can have other various implementation manners, and the skilled person in the art can make various corresponding changes and deformation according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and deformation should all belong to the protection range of the claims attached to the utility model.

Claims

1. A gas cylinder having a pressure valve, comprising: The utility model discloses a bottle body, the opening position of bottle body is equipped with pressure valve, its characterized in that: the pressure valve includes: A valve core, the valve core is integrally formed from top to bottom with: core stem, core neck, polygonal plug column, spring sleeve column; A compression spring for setting on spring sleeve column; A valve body, the cavity of upper and lower intercommunication is set up in the valve body, the cavity includes upper cavity, middle transition channel, lower cavity, the wedge-shaped sealing surface is formed between lower cavity and middle transition channel, the bottom opening of valve body is equipped with internal thread; A valve plug, the external thread is set up on valve plug; When installing, the valve core and compression spring are inserted into the cavity of valve body from the bottom opening of valve body in proper order, the valve plug is connected on the bottom opening of valve body through thread, wherein, the core stem is in the position of upper cavity and middle transition channel, the core neck and polygonal plug column and spring sleeve column are located in lower cavity, the upper part of compression spring is set on spring sleeve column, the lower part of compression spring is set on the inner surface of valve plug;In normal sealing state, the spring force of compression spring presses the top surface of polygonal plug column of valve core on wedge-shaped sealing surface and forms sealing;In ventilation state, the valve core is displaced downward under the external downward pressure, and the top surface of polygonal plug column of valve core is away from wedge-shaped sealing surface to realize the ventilation of valve body up and down.

2. A gas cylinder with pressure valve according to claim 1, characterized in that: The cross-sectional diameter of the lower cavity is greater than the cross-sectional diameter of the upper cavity, and the cross-sectional diameter of the upper cavity is greater than the cross-sectional diameter of the middle transition channel.

3. A gas cylinder with pressure valve according to claim 2, characterized in that: The upper opening of the valve body is provided with a limiting circular table cavity, the cross-sectional diameter of the limiting circular table cavity is greater than the cross-sectional diameter of the upper cavity, and a limiting snap ring is sleeved on the top of the core stem, when the valve core is displaced downward under the external downward pressure in the ventilation state, the limiting snap ring is clamped on the step position where the limiting circular table cavity is communicated with the upper cavity.

4. A gas cylinder with a pressure valve according to any one of claims 1-3, characterized in that: The outer shape of the valve body includes a lower threaded column, a middle clamping annular groove, and an upper annular groove, the opening of the bottle body has an internal thread, and when assembling, the valve body is connected on the opening of the bottle body through the lower threaded column.

5. A gas cylinder with pressure valve according to claim 4, characterized in that: The top of the lower threaded column is sleeved with a lower sealing ring for sealing the opening position of the bottle body.

6. A gas cylinder with pressure valve according to claim 5, characterized in that: One side of the middle clamping annular groove is formed as a lateral "concave" structure, and the middle clamping annular groove is used for clamping by an external clamping structure.

7. A cylinder with pressure valve according to claim 6, characterized in that: An upper sealing ring is clamped in the upper annular groove, and the upper sealing ring is used for sealing the gas cylinder and the equipment connected with the gas cylinder.

8. A gas cylinder with pressure valve according to claim 7, characterized in that: The valve body and the valve core are both made of metal material.

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