CN110529604B

CN110529604B - Gas control valve and control method thereof, and beverage aerating device

Info

Publication number: CN110529604B
Application number: CN201911008898.6A
Authority: CN
Inventors: 卓力
Original assignee: Imotion Shanghai Product Design Co ltd
Current assignee: Imotion Shanghai Product Design Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-12-01
Anticipated expiration: 2039-10-23
Also published as: CN110529604A

Abstract

The invention provides a gas control valve, a control method thereof and a beverage aerating device, which comprise: comprises a valve body assembly 100, a dosage control assembly 200 and a pressure detection assembly 210; the valve body assembly 100 includes a valve body 101, a first valve 110, a pressure detecting mechanism 120, and a second valve; the valve body 101 comprises a gas cylinder interface 102 and a gas outlet 105, the gas cylinder interface 102 and the gas outlet 105 are connected through a main gas path, the first valve 110 is connected on the main gas path, and the pressure detection mechanism 120 and the second valve are respectively connected on branches of the main gas path; the dose control assembly 200 is connected to the first valve 110, and the pressure detection assembly 210 is connected to the pressure detection mechanism 120. The invention simultaneously solves the functional requirements of dose control, safety, reliability, air pressure sensing and manual pressure relief, realizes power failure reset, and has simple and compact structure and convenient maintenance.

Description

Gas control valve and control method thereof, and beverage aerating device

Technical Field

The invention relates to the technical field of valves, in particular to a gas control valve, a control method thereof and a beverage aerating device.

Background

In the field of high-pressure gas control, all the currently adopted valve body products have single functions, for example, the valve body products can only realize dosage control, can only be suitable for certain specific gas and cannot be used universally. Patent document CN104220811B discloses a gas control valve provided with a transmission cutoff portion (stopper and locking portion) for cutting off power transmission from a motor to a rotary disk in a safety valve operation range, and by stopping rotation of the rotary disk in the safety valve operation range, thereby avoiding friction between the rotary disk and a fixed disk. The device further comprises a contact force varying section (spring member) for varying the contact force of the rotating disk to the fixed disk (14), and a transmission lifting cam.

The pressure of the gas in the closed chamber generally increases with the increase of the temperature, and when the product works in the environment with higher temperature, the pressure inside the valve body is very likely to exceed the bearing limit, so that the valve body is damaged, the gas is leaked, and safety accidents are caused. In the aspect of safety guarantee of high-pressure gas, related products are large in size, complex in structure and free of cost performance. In addition, the explosion type miniature safety valve in the prior art belongs to a disposable product, when the pressure reaches a set value, a rupture disk in the safety valve can be broken to cause permanent leakage, the safety valve can normally work only by replacing a new safety valve, and the maintenance cost is high.

Secondly, when the gas pressure in the gas cylinder is insufficient and a new gas cylinder needs to be replaced, if the gas cylinder is directly unscrewed for replacement, a risk may exist. And can not judge whether the pressure of the residual gas in the gas cylinder exceeds the atmospheric pressure, if the pressure is CO₂Or other toxic gases, which would be extremely dangerous if the cylinder were to be unscrewed.

Finally, when CO is used₂When the gas is leaked, objects nearby the gas can be rapidly cooled, so that parts become brittle, and the strength and stability of the valve body are affected. In addition CO₂The leakage amount exceeds a certain concentration, so that the patient can be faint and extremely dangerous. For CO relative to other gases₂The control of the gas is the most difficult.

In order to solve the above problems, how to organically combine multiple functional structures together, and stability and reliability are the biggest difficulties.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a gas control valve, a control method thereof and a beverage aerating device.

According to the present invention, there is provided a gas control valve comprising: comprises a valve body assembly 100, a dosage control assembly 200 and a pressure detection assembly 210;

the valve body assembly 100 includes a valve body 101, a first valve 110, a pressure detecting mechanism 120, and a second valve;

the valve body 101 comprises a gas cylinder interface 102 and a gas outlet 105, the gas cylinder interface 102 and the gas outlet 105 are connected through a main gas path, the first valve 110 is connected to the main gas path, and the pressure detection mechanism 120 and the second valve are respectively connected to branches of the main gas path;

the dose control assembly 200 is connected to the first valve 110;

the pressure detection assembly 210 is connected to the pressure detection mechanism 120.

Preferably, the valve body assembly 100 is rotatably connected to the bracket 300, and the dosage control assembly 200 is connected to the bracket 300.

Preferably, the gas cylinder interface 102 is provided with:

a sealing member 103 for sealing the mouth edge of the gas cylinder 400;

the needle mouth 104: one end passes through the seal 103 to pierce the mouth of the cylinder 400.

Preferably, a sidewall of the first valve 110 is integrally formed with the valve body 101, and the first valve 110 includes: a flange 111, a valve stem 112, a cushion gasket 113, a first seal ring 114, a seal gasket 115, and a bushing 116;

flange 111 is connected on the valve body 101, bush 116 is located in the main gas circuit, under the effect of elastic component, make sealed pad 115 compresses tightly the inner wall of valve body 101 blocks up main gas circuit, valve rod 112 swing joint be in the valve body 101, one end with sealed pad 115 contact, the other end passes flange 111 exposes outside, first sealing washer 114 cover is located on the valve rod 112, with the inner wall contact of valve body 101.

Preferably, an upper limiting sheet and a lower limiting sheet radially extend from the circumference of the valve rod 112, the first sealing ring 114 is disposed between the upper limiting sheet and the lower limiting sheet, and a buffer gasket 113 is disposed between the upper limiting sheet and the flange 111.

Preferably, the dose control assembly 200 comprises: a motor 201, a dosage sensor 202, a reset sensor 203, a torsion spring 204, a rocker arm 205, a pin shaft 206 and a motor arm 207;

the dose sensor 202 and the reset sensor 203 are respectively arranged on a rotating path of the rocker arm 205, the motor arm 207 is connected to a rotating shaft of the motor 201 and is connected with the rocker arm 205 through a cam, the rocker arm 205 is rotatably connected to the pin shaft 206, and two ends of the torsion spring 204 are respectively connected with the rocker arm 205 and the bracket 300;

in the initial state, the rocker arm 205 contacts and triggers the reset sensor 203 under the action of the torsion spring 204, and meanwhile, the rocker arm 205 is disengaged from the valve rod 112; when the motor is rotating in the forward direction, the motor arm 207 rotates the rocker arm 205, and the valve stem 112 is depressed by the rotation of the rocker arm 205, thereby opening the first valve 110, and the rocker arm 205 continues to rotate until it touches the dose sensor 202.

Preferably, the second valve is a pressure relief valve, including any one of the manual pressure relief valve 130 and the high pressure safety valve 140, or both the manual pressure relief valve 130 and the high pressure safety valve 140.

Preferably, the high pressure relief valve 140 includes: a nut 141, a third spring 142, a bushing 143, a second flat washer 144, and a valve 145;

the second flat washer 144 is arranged in the groove of the bushing 143, the third spring 142 is preloaded in the nut 141, and the second flat washer 144 closes the exhaust hole of the valve 145 under the preload of the third spring 142;

the manual pressure relief valve 130 includes: valve pin 131, first flat washer 132, bonnet 133, and second spring 134;

a bonnet 133 is mounted to the valve body 101, a first flat washer 132 and a second spring 134 are disposed in the bonnet 133, and one end of the valve pin 131 is exposed through the bonnet 133.

Preferably, the pressure detecting mechanism 120 includes: a probe shaft 121, a spring cap 122, a first spring 123, a collar 124, and a second seal 125;

the detection shaft 121 is arranged in the spring cap 122, one end of the detection shaft passes through the spring cap 122 to be exposed outside, the first spring 123 is sleeved on the detection shaft 121, the clamping ring 124 is radially connected to the periphery of the detection shaft 121, and the second sealing ring 125 is sleeved on the other end of the detection shaft 121.

According to the control method of the gas control valve provided by the invention, the gas control valve is adopted for gas control.

The beverage aerating device provided by the invention comprises the gas control valve.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention simultaneously solves the functional requirements of dose control, safety, reliability and manual pressure relief, and realizes the functions of air pressure sensing and the like. The multifunctional valve can realize multiple functions, so that the product is safer, more reliable, small and portable. The gas control valve with different practical functions can be selected and customized according to different gases and different use environments.

(2) The present invention allows precise control of the gas output dose by using a mechanical transmission and sensor-associated structure as shown for the first valve, which can withstand higher pressures than a solenoid valve. Most importantly, the mechanical gas dosage control structure has the function of power-off protection, and the electromagnetic valve cannot play the function of safety protection when the electromagnetic valve is powered off in a working state.

(3) By adopting the structure of the mechanical safety valve module (the second valve), the problem that the product cannot normally work under the high-temperature and high-pressure environment is solved. Compared with the existing blasting type miniature safety valve in the market, the second valve designed by the invention is of a mechanical structure, is safer and more reliable, can be repeatedly used, and can balance the pressure of the inner cavity of a product to a stable pressure value under the environment of high temperature and high pressure.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a valve body assembly of the present invention.

Fig. 2 is a block diagram of the present invention.

Fig. 3 is a schematic view of the internal gas path of the present invention.

Fig. 4a, 4b, 4c, 4d are perspective, front, right and top views, respectively, of the overall structure of the present invention.

Fig. 5 is a schematic view of the structure of the gas cylinder in rotation.

Fig. 6a and 6b are a sectional view and a side view of the gas cylinder interface, respectively.

Fig. 7 is a cross-sectional view of the first valve.

Fig. 8a and 8b are a schematic structural view and a cross-sectional view of the dose control assembly, respectively.

Fig. 9 is a cross-sectional view of the high pressure relief valve.

Fig. 10 is a cross-sectional view of a manual pressure relief valve.

Fig. 11 is a sectional view of the pressure detection mechanism.

In the figure:

100-a valve body assembly; 101-a valve body; 102-a gas cylinder interface; 103-a seal; 104-needle mouth; 105-an air outlet; 110-a first valve; 111-a flange; 112-a valve stem; 113-a cushion washer; 114-a first sealing ring; 115-a gasket; 116-a bushing; 120-a pressure detection mechanism; 121-a detection axis; 122-a spring cap; 123-a first spring; 124-a collar; 125-a second seal ring; 130-manual pressure relief valve; 131-a valve pin; 132-a first flat gasket; 133-valve cap; 134-a second spring; 140-high pressure relief valve; 141-a nut; 142-a third spring; 143-bushing; 144-a second flat gasket; 145-a valve; 200-a dose control assembly; 201-a motor; 202-a dose sensor; 203-a reset sensor; 204-torsion spring; 205-a rocker arm; 206-pin shaft; 207-motor arm; 210-a pressure detection component; 211-a detection sensor; 300-a scaffold; 301-positioning seat; 400-gas cylinder.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

The gas control valve mainly comprises a valve body assembly 100, a dosage control assembly 200, a pressure detection assembly 210 and a bracket 300, wherein the valve body assembly 100, the dosage control assembly 200 and the pressure detection assembly 210 are all arranged on the bracket 300. The valve body assembly 100 can rotate around the rotating shaft of the bracket 300 to a positioning angle, so that a user can conveniently install or remove the gas cylinder, as shown in fig. 1, 2, 3, 4a, 4b, 4c, 4d and 5.

The valve body assembly 100 includes a valve body 101, a first valve 110, a pressure detecting mechanism 120, and a second valve; the valve body 101 comprises a gas cylinder interface 102 and a gas outlet 105, the gas cylinder interface 102 and the gas outlet 105 are connected through a main gas path, the first valve 110 is connected on the main gas path, and the pressure detection mechanism 120 and the second valve are respectively connected on branches of the main gas path; the dose control assembly 200 is connected to the first valve 110 and the pressure detection mechanism 120, respectively. Gas cylinder 400 is connected to valve body assembly 100 from gas cylinder interface 102, and gas inside gas cylinder 400 is discharged from gas outlet 105 to the target container through first valve 110. As shown in fig. 3, the dashed line in the figure represents an air path (including the main air path and the branch path), and the air enters the first valve 110 from the lower side of the valve body 101 in the figure through the air path and then is discharged from the right side of the valve body 101 in the figure, which is the main air path; a branch is connected to the main gas path, and for convenience of drawing and understanding, the branch is in a cross shape in fig. 3, one end of the branch is connected to the main gas path, and the other three ends are respectively connected to the pressure detection mechanism 120, the manual pressure release valve 130 and the high-pressure safety valve 140. In practical situations, the trend of the gas path may be designed as any trend according to the requirement, which is not limited in the present invention.

As shown in fig. 6a and 6b, the gas cylinder interface 102 has: the sealing element 103 is used for sealing the opening edge of the gas cylinder 400; one end of needle tip 104 passes through seal 103 to pierce the mouth of gas cylinder 400. During the process of connecting the gas cylinder 400 to the gas cylinder interface 102, the needle tip 104 will slowly pierce the top surface of the gas cylinder 400, and at this time, the gas in the gas cylinder enters the inner cavity of the valve body 101. While cylinder 400 is compressed against seal 103 and sealed to valve body assembly 100. In the case where the first valve 110 is not opened, the entire valve body assembly 100 is in a sealed state.

As shown in fig. 7, a side wall of the first valve 110 is integrally formed with the valve body 101, and the first valve 110 includes: flange 111, valve stem 112, cushion ring 113, first seal ring 114, seal 115, and bushing 116. The flange 111 is preferably connected to the valve body 101 by threads, the bushing 116 is located in the main air passage, under the action of the elastic member, the inner wall of the valve body 101 pressed by the sealing gasket 115 is plugged into the main air passage, the valve rod 112 is movably connected in the valve body 101, one end of the valve rod is in contact with the sealing gasket 115, the other end of the valve rod is exposed outside through the flange 111, and the first sealing ring 114 is sleeved on the valve rod 112 and is in contact with the inner wall of the valve body 101. An upper limiting sheet and a lower limiting sheet radially extend out of the circumference of the valve rod 112, the first sealing ring 114 is arranged between the upper limiting sheet and the lower limiting sheet, and a buffer gasket 113 is arranged between the upper limiting sheet and the flange 111.

The bushing 116, under the action of the elastic element, causes the sealing gasket 115 to press against the surface of the valve body 101 so as to ensure that the first valve can be in the closed state when there is no gas or little gas pressure in the valve body. When the valve stem 112 is pressed into the valve body 101, the valve stem 112 pushes open the packing 115, and the first valve 110 is opened.

As shown in fig. 8a and 8b, the dose control assembly 200 includes: motor 201, dose sensor 202, reset sensor 203, torsion spring 204, rocker arm 205, pin 206 and motor arm 207.

The reset sensor 203 and the dose sensor 202 are mounted on the positioning socket 301. The motor arm 207 and the rocker arm 205 are connected by a cam and are fixedly connected to a rotating shaft of the motor 201. The rocker arm 205 can rotate around a pin shaft 206, and the torsion spring 204 is respectively connected with the rocker arm 205 and the positioning seat 301. In the initial state, the rocker arm 205 triggers the reset sensor 203 under the action of the torsion spring 204, and the rocker arm 205 disengages from the valve stem 112. When the motor 201 is rotated, the motor arm 207 starts to rotate and simultaneously drives the rocker arm 205 to rotate, and the valve stem 112 is pressed into the valve body assembly 100 through the rotation of the rocker arm 205, so that the first valve 110 is opened and the gas is discharged. When the rocker arm 205 continues to rotate until the rocker arm 205 touches the dosage sensor 202, the motor 201 stops rotating under the action of the control module, the control module judges the dosage of gas discharged, the motor 201 rotates reversely, the rocker arm 205 rotates reversely along with the motor arm 207, meanwhile, the dosage sensor 202 is disconnected and the valve rod 112 is released, the first valve 110 is gradually closed along with the release of the valve rod 112, and the motor 201 is powered off and stops rotating when the rocker arm 205 touches the reset sensor 203, and the cycle is repeated. The output dosage of the high-pressure gas can be adjusted at will according to the requirement, and the time for opening the first valve 110 is set through the control module.

In the present invention, the second valve is a relief valve, and includes either one of the manual relief valve 130 and the high-pressure relief valve 140, or both the manual relief valve 130 and the high-pressure relief valve 140.

As shown in fig. 9, the high pressure relief valve 140 includes: a nut 141, a third spring 142, a bushing 143, a second flat washer 144, and a valve 145. The second flat washer 144 is installed in the groove of the bushing 143, the third spring 142 is preloaded in the nut 141, and the second flat washer 144 closes the exhaust hole of the valve 145 under the preload of the third spring 142. When the gas pressure inside the valve body 101 increases to a preset high level threshold, the second flat gasket 144 is pushed open by the gas pressure, so that the gas can be discharged to the atmosphere through the gas discharge groove of the nut 141. And as the high-pressure gas inside the valve body 101 is discharged, the pressure inside the valve body 101 is reduced, and when the pressure is reduced to the preset low threshold value, the second flat gasket 144 closes the exhaust hole of the valve 145 again under the action of the third spring 142. The second valve can be designed into a single module, is convenient to replace and maintain, and can adjust the low-level threshold value and the high-level threshold value by adjusting the elastic force or the compression amount of the third spring 142 to adapt to different working environments.

When the product is used for a period of time, the gas inside the gas cylinder 400 is found to be insufficient, and a new gas cylinder needs to be replaced. A manual pressure relief valve 130 is provided on the valve body assembly 100 for rapidly relieving the residual pressure inside the gas bottle 400 and the valve body assembly 100.

As shown in fig. 10, the manual relief valve 130 includes: valve pin 131, first flat washer 132, bonnet 133, and second spring 134. The valve cap 133 is screwed to the valve body 101, the first flat washer 132 and the second spring 134 are disposed in the valve cap 133, and one end of the valve pin 131 is exposed through the valve cap 133. If the gas cylinder needs to be replaced, the residual gas in the gas cylinder can be completely discharged by pressing the valve pin 131 of the second valve 130 by hands, and the gas cylinder can be safely screwed down.

In order to detect the internal gas pressure of gas cylinder 400, the present invention provides a pressure sensing function on valve body assembly 100. Different low-voltage detection standards can be customized according to different working environment requirements.

As shown in fig. 11, the pressure detection mechanism 120 includes a probe shaft 121, a spring cap 122, a first spring 123, a collar 124, and a second seal ring 125. The detection shaft 121 is disposed in the spring cap 122, one end of the detection shaft passes through the spring cap 122 and is exposed outside, the first spring 123 is sleeved on the detection shaft 121, the retainer ring 124 is radially connected to the periphery of the detection shaft 121, and the second seal ring 125 is sleeved on the other end of the detection shaft 121.

After the valve body assembly 100 is connected to the gas cylinder 400, the gas in the inner cavity pushes out the detection shaft 121, so that the detection shaft 121 triggers the detection sensor 211, and the control module receives a signal and determines that the gas pressure in the gas cylinder 400 meets the requirement. When the pressure inside the gas cylinder 400 drops to the preset threshold, the detection shaft 121 is pressed into the spring cap 122 under the action of the first spring 123, so as to be separated from the detection sensor 211, so that the detection sensor 211 is disconnected, and at this time, the control module receives a signal and determines that the pressure inside the gas cylinder is insufficient, and simultaneously sends out a prompt, as shown in fig. 8 b. Or, the pressure gauge can be connected into the valve body, and the internal air pressure of the gas cylinder 400 can also be monitored in real time.

When the product is suddenly powered off in the working process, the internal pressure of the gas cylinder can push out the valve rod 112, so that the motor 201 is driven to rotate reversely, the first valve 110 is closed, and gas leakage is avoided. When energized again, the motor, under control of the control module, drives the valve stem 112 to reset.

The control module, not shown, is in electrical communication with the control valve assembly of the present invention. The control module can be various external chips, controllers and other structures, and can be programmed by technicians to control the invention.

The invention also provides a control method of the gas control valve, which adopts the gas control valve to control gas.

The gas control valve provided by the invention can be applied to beverage devices such as beer machines, cocktail capsule machines, bubble water machines and the like, and has a wide application range.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A gas control valve, comprising: a valve body assembly (100), a dose control assembly (200) and a pressure detection assembly (210);

the valve body assembly (100) comprises a valve body (101), a first valve (110), a pressure detection mechanism (120) and a second valve;

the valve body (101) comprises a gas cylinder interface (102) and a gas outlet (105), the gas cylinder interface (102) is connected with the gas outlet (105) through a main gas path, the first valve (110) is connected to the main gas path, and the pressure detection mechanism (120) and the second valve are respectively connected to branches of the main gas path;

the dosage control assembly (200) is connected with the first valve (110), and the pressure detection assembly (210) is connected with the pressure detection mechanism (120);

the valve body assembly (100) is rotatably connected to the bracket (300), the dosage control assembly (200) is connected to the bracket (300), and the pressure detection assembly (210) is connected to the bracket (300);

a side wall of the first valve (110) is integrally formed with the valve body (101), the first valve (110) including: a flange (111), a valve rod (112), a buffer gasket (113), a first sealing ring (114), a sealing gasket (115) and a bushing (116);

the flange (111) is connected to the valve body (101), the bushing (116) is located in the main air passage, the sealing gasket (115) is pressed against the inner wall of the valve body (101) to block the main air passage under the action of an elastic part, the valve rod (112) is movably connected in the valve body (101), one end of the valve rod is in contact with the sealing gasket (115), the other end of the valve rod penetrates through the flange (111) to be exposed outside, and the first sealing ring (114) is sleeved on the valve rod (112) and is in contact with the inner wall of the valve body (101);

an upper limiting sheet and a lower limiting sheet radially extend out of the circumference of the valve rod (112), the first sealing ring (114) is arranged between the upper limiting sheet and the lower limiting sheet, and a buffer gasket (113) is arranged between the upper limiting sheet and the flange (111);

the dose control assembly (200) comprises: the device comprises a motor (201), a dosage sensor (202), a reset sensor (203), a torsion spring (204), a rocker arm (205), a pin shaft (206) and a motor arm (207);

the dose sensor (202) and the reset sensor (203) are respectively arranged on a rotating path of the rocker arm (205), the motor arm (207) is connected to a rotating shaft of the motor (201) and is connected with the rocker arm (205) through a cam, the rocker arm (205) is rotatably connected to the pin shaft (206), and two ends of the torsion spring (204) are respectively connected with the rocker arm (205) and the bracket (300);

in an initial state, the rocker arm (205) contacts and triggers the reset sensor (203) under the action of the torsion spring (204), and meanwhile, the rocker arm (205) is separated from the valve rod (112); when the motor rotates forwards, the motor arm (207) drives the rocker arm (205) to rotate, the valve rod (112) is pressed down through the rotation of the rocker arm (205), so that the first valve (110) is opened, and the rocker arm (205) continues to rotate until the dosage sensor (202) is touched;

the pressure detection mechanism (120) includes: the device comprises a detection shaft (121), a spring cap (122), a first spring (123), a clamping ring (124) and a second sealing ring (125);

the detection shaft (121) is arranged in the spring cap (122), one end of the detection shaft penetrates through the spring cap (122) to be exposed outside, the first spring (123) is sleeved on the detection shaft (121), the clamping ring (124) is radially connected to the periphery of the detection shaft (121), and the second sealing ring (125) is sleeved at the other end of the detection shaft (121).

2. The gas control valve of claim 1, wherein the cylinder interface (102) has disposed therein:

a sealing member (103) for sealing the mouth edge of the gas cylinder (400);

needle mouth (104): one end of the sealing element penetrates through the sealing element (103) to puncture the opening of the gas cylinder (400).

3. The gas control valve of claim 1, wherein the second valve is a pressure relief valve, including either one of a manual pressure relief valve (130) and a high pressure safety valve (140), or both the manual pressure relief valve (130) and the high pressure safety valve (140).

4. The gas control valve of claim 3, wherein the high pressure relief valve (140) comprises: a nut (141), a third spring (142), a bushing (143), a second flat washer (144), and a valve (145);

the second flat gasket (144) is arranged in a groove of the bushing (143), the third spring (142) is pre-tightened in the nut (141), and the second flat gasket (144) seals an exhaust hole of the valve (145) under the pre-tightening force of the third spring (142);

the manual pressure relief valve (130) comprises: a valve pin (131), a first flat washer (132), a valve cap (133), and a second spring (134);

the valve cap (133) is arranged on the valve body (101), the first flat gasket (132) and the second spring (134) are arranged in the valve cap (133), and one end of the valve pin (131) penetrates through the valve cap (133) to be exposed outside.

5. A control method of a gas control valve, characterized by performing gas control using the gas control valve of any one of claims 1 to 4.

6. A beverage aerating device which includes a gas control valve as claimed in any one of claims 1 to 4.