CN220337512U

CN220337512U - Gas control valve

Info

Publication number: CN220337512U
Application number: CN202321793090.5U
Authority: CN
Inventors: 向尚明
Original assignee: Shanghai Ziquan Beverage Co ltd
Current assignee: Shanghai Ziquan Beverage Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-01-12
Anticipated expiration: 2033-07-10

Abstract

The utility model relates to a gas control valve, which is internally provided with a control cavity, a carbonic acid air cavity and a piston capable of sliding in the control cavity, wherein the carbonic acid air cavity is provided with an inlet and an outlet, a valve core capable of opening and closing a carbonic acid air flow passage between the inlet and the outlet and a first spring for biasing the valve core to a position for closing the carbonic acid air flow passage are also movably arranged in the carbonic acid air cavity; the center of the piston is connected with a piston rod, the piston rod is connected with the valve core through a second spring, and a high-pressure pneumatic control interface is arranged on the control cavity. The advantages are that: the gas control valve prolongs the service life of the sealing gasket, does not have leakage phenomenon, has simple structure and easy production and processing, and is suitable for wide popularization and application in industry.

Description

Gas control valve

Technical Field

The utility model relates to the technical field of food production, in particular to a gas control valve.

Background

The pneumatic control valve is widely applied to mechanical equipment such as food, medicine, industry, washing, petrifaction, metallurgy, spraying, vehicles and the like.

Chinese patent publication No. CN201335155Y discloses a split combined two-position two-way air control valve, which comprises a cylinder and a valve body, a piston is arranged in the cylinder, the center of the piston is connected with a piston rod, the lower end of the piston rod is provided with a valve core, the side wall of the cylinder is provided with an air control interface, two ends of the valve body are respectively provided with an inlet joint and an outlet joint, a channel between the inlet joint and the outlet joint is separated by a valve plate fixed in the inner cavity of the valve body, a horizontal valve port is arranged in the inner cavity of the valve body at the position between the valve plate and the outlet joint, the lower end of the cylinder is provided with a lower cover with the inner wall closed of the cylinder, the center of the lower cover is provided with a through hole for the piston rod to extend downwards into the valve body, the upper part of the valve body is fixedly connected with a valve cover, and the cylinder is connected with the valve cover. The sealing ring of the pneumatic control valve is easy to wear in actual use, slight leakage is easy to occur, and the service life is short.

There is therefore a need for improvements in the art.

Disclosure of Invention

The embodiment of the utility model aims at overcoming the defects of the prior art in structure, and provides a gas control valve which prolongs the service life of a sealing gasket, does not leak, has a simple structure, is easy to produce and process, and is suitable for being widely popularized and applied in industry.

In order to achieve the above object, the embodiment of the present utility model provides a gas control valve, which is implemented by the following technical scheme:

a gas control valve, characterized by: the inside of the filling pipe is provided with a control cavity, a carbonic acid air cavity and a piston which can slide in the control cavity, the carbonic acid air cavity is provided with an inlet and an outlet which is communicated with the filling pipe, the carbonic acid air cavity is also movably provided with a valve core which can open and close a carbonic acid air flow passage between the inlet and the outlet, and a first spring which enables the valve core to bias towards a position for closing the carbonic acid air flow passage; the center of the piston is connected with a piston rod, the piston rod is connected with the valve core through a second spring, and a high-pressure pneumatic control interface is arranged on the control cavity.

The peripheral surface of the piston is provided with an annular groove, and a sealing ring is embedded in the annular groove; the center of the first end face of the piston is provided with a round hole for inserting a piston rod, and the outer edge of the second end face of the piston is uniformly provided with a plurality of notches connected to the annular groove.

The ring channel includes facade, bottom surface, step and domatic, wherein: the vertical surface is positioned at one side of the first end surface and is in a ring shape perpendicular to the round hole; the bottom surface is cylindrical and parallel to the round hole; the step is positioned at the other side of the opposite elevation of the bottom surface, and is in a step shape lower than the elevation along the section of the annular groove; the slope surface is in a round table shape, the bottom of the slope surface is positioned at one side of the second end surface, and the top of the slope surface is connected with the step; the notch is formed between the slope bottom and the second end face.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a gas control valve, which prolongs the service life of a sealing gasket, does not generate leakage phenomenon, has simple structure and easy production and processing, and is suitable for wide popularization and application in industry.

Drawings

The above features and advantages of the present utility model will become more apparent and readily appreciated from the following description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a pneumatic control valve module according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a pneumatic control valve module piston according to an embodiment of the present utility model;

fig. 3 is a sectional view of a pneumatic control valve module piston according to an embodiment of the present utility model.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms such as "front", "rear", "left", "right", "inner", "outer", and the like, as used in the present specification, are also for descriptive purposes only and are not intended to limit the scope of the utility model in which the utility model may be practiced, but rather the relative relationship of the terms may be altered or modified without materially altering the skill of the art to which the utility model pertains.

In the description of the embodiments below, unless explicitly specified and limited otherwise, the term "coupled" and the like should be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; either mechanically or indirectly, through intermediaries, or in communication with each other, or in interaction with each other, unless otherwise specifically defined. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 and 2, an embodiment of the present utility model proposes a gas control valve provided with a control chamber 1, a carbonic acid gas chamber 2, and a piston 3 slidable in the control chamber 1.

The control chamber 1 is provided with a high-pressure air control interface which comprises a high-pressure air inlet 11 and a high-pressure air outlet 12.

The carbonic acid air cavity 2 is provided with an inlet 21 and an outlet 22 communicated with the filling pipe 3, the carbonic acid air cavity 2 is movably provided with a valve core 4 for opening and closing a carbonic acid air flow passage between the inlet 21 and the outlet 22, and the carbonic acid air cavity 2 is also provided with a first spring 23 for biasing the valve core 4 to a position for closing the carbonic acid air flow passage. Since this structure is a conventional structure of a valve for controlling a fluid, a detailed description thereof will not be repeated here.

The center of the piston 3 is connected with a piston rod 5. As shown in fig. 3, the piston 3 has a substantially cylindrical shape, and has an annular groove formed in its circumferential surface, and a seal ring 31 is fitted thereto. The center of the first end surface of the piston 3 is provided with a round hole 32 for inserting the piston rod 5, and the outer edge of the second end surface of the piston is uniformly distributed with a plurality of notches 33 connected to the annular groove. In a preferred embodiment, the annular groove comprises a riser 34, a floor 35, a step 36 and a ramp 37, wherein: the vertical surface 34 is positioned on one side of the first end surface and is in a circular ring shape perpendicular to the round hole 32; the bottom surface 35 is cylindrical and parallel to the circular hole 32; the step 36 is positioned on the other side of the bottom surface 35 opposite to the vertical surface 34, and is in a step shape lower than the vertical surface 34 along the cross section of the annular groove; the slope surface 37 is in a shape of a circular truncated cone, the bottom of the slope surface is positioned at one side of the second end surface, and the top of the slope surface is connected with the step 36; and a notch 33 is formed between the bottom of the ramp 37 and the second end surface. Thus, when the control chamber 1 is filled with high pressure gas, the pressure thereof increases, the high pressure gas in the control chamber 1 contacts the sealing ring 31 along the slope 37 and the step 36 via the notch 33, the sealing ring 31 abuts against the elevation 34, and the outer periphery fully contacts the cylinder wall of the control chamber 1. In this way, even if the seal ring 31 wears due to long-term use, the air tightness of the control chamber 1 can be ensured. The service life of the sealing ring is greatly prolonged, the maintenance cost is reduced, and the high-pressure gas in the control cavity 1 is ensured not to be mixed into carbonic acid gas, so that the pollution of carbonic acid beverage is avoided.

The piston rod 5 has a circular bottom surface 51 and a rod body 52 arranged at the center of the circular bottom surface 51, the rod body 52 is inserted into the circular hole 32, and the other side of the circular bottom surface 51 opposite to the rod body 52 is connected with the valve core 4 through a second spring 53.

Thus, when the control chamber 1 is filled with high-pressure gas, the piston 3 slides along the control chamber 1 to push the valve core 4 to move, so that the valve core 4 opens the carbonic acid gas flow passage between the inlet 21 and the outlet 22. When the control chamber 1 discharges high-pressure gas, the pressure of the control chamber 1 returns to normal, the first spring 23 pushes the valve core 4 to close the carbonic acid gas flow passage between the inlet 21 and the outlet 22, and the second spring 53 further pushes the piston rod 5 and the piston 3 to reset the piston 3.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a gas control valve, which is provided with two baffle rods vibrating at high frequency and a plurality of channel dividing plates with different lengths, so that bottles entering a channel dividing mechanism are continuously vibrated along with the two baffle rods, the relative positions of the bottles and the channel dividing plates are changed at high frequency and are continuously driven by a conveying belt to move forwards, and the bottles can be rapidly separated from a blocking position, so that the bottle dividing mechanism can avoid blocking. The bottle separating mechanism is applicable to bottles with different sizes, has a simple structure, is easy to produce and process, and is suitable for wide popularization and application in industry.

While the intent and embodiments of the present utility model have been described in detail by way of examples, those skilled in the art to which the utility model pertains will appreciate that the foregoing examples are merely illustrative of the preferred embodiments of the present utility model, and that it is not intended to list all embodiments individually and that any implementation embodying the technical scheme of the present utility model is within the scope of the present utility model.

It should be noted that the above description of the present utility model is further detailed in connection with the specific embodiments, and it should not be construed that the specific embodiments of the present utility model are limited thereto, and those skilled in the art can make various improvements and modifications on the basis of the above-described embodiments while falling within the scope of the present utility model.

Claims

1. A gas control valve, characterized by: the gas control valve is internally provided with a control cavity, a carbonic acid air cavity and a piston which can slide in the control cavity, the carbonic acid air cavity is provided with an inlet and an outlet, a valve core which can open and close a carbonic acid air flow passage between the inlet and the outlet and a first spring which enables the valve core to bias towards the position for closing the carbonic acid air flow passage are also movably arranged in the carbonic acid air cavity; the center of the piston is connected with a piston rod, the piston rod is connected with the valve core through a second spring, and a high-pressure pneumatic control interface is arranged on the control cavity.

2. A gas control valve according to claim 1, wherein: the peripheral surface of the piston is provided with an annular groove, and a sealing ring is embedded in the annular groove; the center of the first end face of the piston is provided with a round hole for inserting a piston rod, and the outer edge of the second end face of the piston is uniformly provided with a plurality of notches connected to the annular groove.

3. A gas control valve according to claim 2, wherein the annular groove comprises a riser, a floor, a step and a ramp, wherein: the vertical surface is positioned at one side of the first end surface and is in a ring shape perpendicular to the round hole; the bottom surface is cylindrical and parallel to the round hole; the step is positioned at the other side of the opposite elevation of the bottom surface, and is in a step shape lower than the elevation along the section of the annular groove; the slope surface is in a round table shape, the bottom of the slope surface is positioned at one side of the second end surface, and the top of the slope surface is connected with the step; the notch is formed between the slope bottom and the second end face.