Gas supercharging device for beverage water barrel

Abstract

A gas supercharging device for a beverage barrel comprises a gas storage container with an opening in the upper end, an inner cover body arranged in the opening, a fixing part with a through hole formed in the middle of the gas storage container in a protruding mode, and a fixing groove formed in the bottom face of the gas storage container; a cover body is arranged at the upper end of the gas storage container; an adsorption substance is placed in the gas storage container; the pressure difference control mechanism comprises a piston arranged in the cover body, a mounting through hole is formed in the middle of the piston, a fixing sleeve with an opening in the lower end is arranged in the piston, and the lower part of the fixing sleeve expands outwards to form a first fixing step; the upper end and the lower end of the compression spring abut against the inner wall of the cover body and the upper end face of the piston; the lower part of the valve rod is inserted into the gas storage container from the through hole of the fixed part, a gas channel is formed in the upper part of the valve rod, and an annular groove is formed in the lower part of the rod body; the upper part of the valve body sleeves the lower part of the valve rod, and the upper end is inserted into the fixing groove of the fixing part; a second fixing step protrudes from the lower part of the inner wall of the valve body; the upper and lower ends of the spring abut against the bottom of the valve rod and the second fixed step; the trigger pushing piece comprises a fixed bottom plate with a through hole in the center; the three trigger pieces are arranged on the outer edge of the fixed bottom plate, and pushing parts are arranged on the lower portions of the trigger pieces and abut against the upper end face of the valve rod.

Description

Technical Field

[0001] The invention relates to beverage and wine storage technology, and in particular to a gas pressurizing device for beverage and wine barrels. Background Art

[0002] For beverage barrels, the traditional outlet is located at the bottom of the barrel, and the beverage can be discharged by rotating and pressing the outlet valve. This method relies on the deadweight pressure of the liquid to control the outflow speed, so the fluid outflow speed is uneven, and some of the beverage will remain at the bottom of the container. At the same time, when the outlet valve is opened, air will enter and mix with the beverage in the barrel, causing it to oxidize and deteriorate, which not only affects the taste of the beverage, but also reduces its shelf life.

[0003] As for gas pressurizing equipment, the traditional gas pressurizing device is to use a large gas cylinder pipeline to connect the beverage barrel device, and fill the barrel with carbon dioxide or inert gas while dispensing beverages and drinks to maintain the taste of beverages and drinks. This device is suitable for large-scale commercial fields, but not suitable for home occasions such as parties.

[0004] The existing booster device still uses differential pressure control, such as the one disclosed in Chinese patent publication number CN1334775A, that is, there is a high-pressure chamber above the piston. When the pressure below is lower than the pressure above, the piston moves downward, thereby opening the gas valve stem and releasing the gas. There are two main problems:

[0005] 1. Filling the gas cylinder with enough gas for use will cause the pressure in the cylinder to be too high, which is not only dangerous, but also causes uneven gas output, that is, too much gas output at the beginning of use and too little gas output later;

[0006] Second, the control of the gas valve stem switch relies on the trigger pusher, which can move freely on the valve stem, which may cause the trigger pusher to fall off, and the booster device will lose its function. Secondly, the trigger pusher occupies part of the space of the gas valve stem, which may cause uneven gas discharge or block the gas outlet and make it impossible to discharge gas and boost pressure;

[0007] 3. The high-pressure gas chamber above the piston is generally pressurized by air compression. The space inside the bottle cap is limited, that is, the pressure of the high-pressure gas chamber is also limited, and a larger pressure difference cannot be obtained. This may cause the piston to move slowly and be unable to keep pace with the speed of pouring the beverage, thereby losing the function of increasing the taste of the beverage. Summary of the invention

[0008] The purpose of the present invention is to design a gas boosting device for beverage and wine barrels, which solves the problems existing in the prior art by changing the gas storage method, the pressure difference sliding of the piston and the trigger fixing structure of the trigger pusher, so as to increase the service life of the gas boosting device in the beverage and wine barrel and reduce the failure rate.

[0009] To achieve the above object, the technical solution of the present invention is:

[0010] A gas pressurizing device for a beverage or wine barrel, comprising:

[0011] The gas storage container has an opening at the upper end, an inner cover body is arranged in the port, a fixed part is formed by a protrusion in the middle of the inner cover body, a through hole is arranged in the center of the fixed part, and a fixed groove is arranged around the through hole on the bottom surface of the fixed part; a cover body is also arranged at the upper end of the gas storage container, and the lower end of the cover body is snap-connected with the gas storage container; a substance capable of adsorbing and desorbing water vapor and carbon dioxide gas is placed in the gas storage container;

[0012] Differential pressure control mechanism, including:

[0013] The piston is arranged in the cover body at the upper end of the gas storage container, and a first sealing ring is embedded in the outer side surface of the piston along the circumferential direction, which cooperates with the inner wall of the cover body to form a closed structure; a mounting through hole is arranged in the middle of the piston, and a fixing sleeve with an opening at the lower end is arranged in the mounting through hole, the upper part of the fixing sleeve extends outward from the upper end surface of the piston, and the lower part of the fixing sleeve expands outward, thereby forming a first fixing step on the inner wall of the fixing sleeve;

[0014] A compression spring is arranged in the cover body above the piston, and the upper and lower ends of the compression spring abut against the inner wall of the cover body and the upper end surface of the piston respectively;

[0015] The valve stem, the lower part of which is inserted into the gas storage container from the through hole in the center of the fixing part on the upper end surface of the gas storage container, the upper part of the valve stem is provided with a gas passage with an upper end opening along the axial direction, the outer wall of the valve stem body is provided with an annular groove at the lower part corresponding to the gas passage, and the bottom of the annular groove is provided with an outlet connected with the gas passage; a second sealing ring is provided in the annular groove;

[0016] The valve body is a shell structure with upper and lower openings, the upper part of the valve body is sleeved on the lower part of the valve stem, the upper end of the valve body is inserted into the fixed groove on the bottom surface of the fixed part of the gas storage container, and a step is provided on the inner wall of the upper end of the valve body to limit the outer edge of the second sealing ring; a second fixed step is convexly provided on the lower part of the inner wall of the valve body;

[0017] A spring, the upper and lower ends of which respectively abut against the bottom of the valve stem and the second fixed step of the inner wall of the valve body;

[0018] The trigger pusher includes:

[0019] A fixed bottom plate is provided with a through hole in the center and is sleeved and fixed to the upper part of the valve stem;

[0020] Three trigger sheets are respectively and vertically arranged on the outer edge of the fixed bottom plate. A pushing portion is arranged at the lower part of the trigger sheet, and the pushing portion abuts against the upper end surface of the valve stem.

[0021] Furthermore, it also includes a filter, which is arranged at the lower end of the valve body.

[0022] Furthermore, an annular fixing groove is provided on the outer wall of the upper part of the valve stem, and correspondingly, an annular fixing portion is vertically provided on the inner edge of the central through hole of the trigger push member fixing base plate, and the annular fixing portion is embedded in the annular fixing groove, so that the trigger push member fixing base plate is fixed to the upper part of the valve stem.

[0023] Preferably, the lower end of the cover body is detachably snap-connected to the upper end of the gas storage container.

[0024] Preferably, the fixed bottom plate, three trigger sheets and the pushing portion of the trigger pusher are an integrated structure.

[0025] Preferably, the three trigger sheets are arc-shaped and can fit with the circular step at the lower part of the piston.

[0026] Preferably, the gas storage container is open at the upper end, and an inner cover body is arranged in the port, and a central part of the inner cover body is raised to form a fixing part; and the port is designed as an inner flange structure.

[0027] Preferably, the bottom of the gas storage container adopts a flat thick bottom design.

[0028] Preferably, the substance capable of adsorbing and desorbing water vapor and carbon dioxide gas is activated carbon particles.

[0029] In the gas boosting device of the present invention:

[0030] The gas storage container contains a substance capable of adsorbing and desorbing gas, such as activated carbon particles capable of adsorbing water vapor, carbon dioxide and other gases.

[0031] When the air pressure in the outer barrel of the gas cylinder decreases, the piston moves downward, and the original high-pressure gas in the gas cylinder enters the barrel for replenishment. The air pressure in the gas cylinder decreases, and the adsorption capacity of substances such as activated carbon decreases, and part of the gas is desorbed. On the one hand, this method can solve the problem of excessive gas pressure in the gas cylinder, which is safer and more reliable than traditional simple gas compression. On the other hand, it can make the gas output of the gas cylinder uniform, solving the problem that the high-pressure gas output is high at the beginning and low in the subsequent gas output. When the overall temperature decreases, the adsorption capacity of substances such as activated carbon decreases, and part of the gas can also be desorbed, making the pressurized gas output effect of the device better. Finally, the substance and the gas are physically adsorbed, relying only on van der Waals forces, so it can be used in beverages and wines, and this method meets the standards.

[0032] In the pressure difference control mechanism described in the present invention, a compression spring with a certain pressure is provided on the upper part of the piston, which is arranged in the cover body above the piston. The upper and lower ends of the compression spring are respectively against the inner wall of the cover body and the upper end face of the piston. The self-pressure of the compression spring can form a pressure difference with the space below the piston, thereby controlling the movement of the piston. The pressure generated by this compression spring is determined by its own material and the space above the piston. Compared with the control of a single pressure chamber, it has a certain controllability and can increase the pressure difference, making the piston move more quickly. A sealing groove is contained around the piston column. A rubber ring is added therein, which can seal the upper pressure chamber and also generate friction with the inner wall of the bottle cap, so that the piston slides evenly on the inner wall. A mounting through hole is provided in the middle of the piston. The upper part of this space is higher than the upper surface of the piston body, which is used to fix the spring body. At the same time, a trigger pusher of the valve stem of the gas cylinder is installed in the through hole, so that the gas cylinder can be easily transported when it is not activated without gas loss. A fixing sleeve with an opening at the lower end is arranged in the installation through hole, and the lower part of the fixing sleeve expands outward to form a first fixed step on the inner wall of the fixing sleeve. Compared with the groove structure, it is easier to clamp the three trigger pieces, and any one of the three trigger pieces stuck in the step position will play a pushing role, thereby reducing the trigger failure rate.

[0033] The trigger pusher of the present invention comprises a fixed bottom plate, three trigger sheets and a pusher. A through hole is arranged in the center of the fixed bottom plate, and the through hole has a curling edge, and the hole diameter is smaller than the outer diameter of the valve stem of the gas cylinder, and can be fixed in the concave part of the valve stem. Through the above design, the trigger pusher can be prevented from falling off when moving upward, and plays a role of limiting; and the trigger pusher is fixed to the upper part of the valve stem, and the three trigger sheets are fixed at the same time, so as to prevent the trigger sheets from affecting the gas flow rate of the valve stem.

[0034] The three trigger pieces are vertically arranged on the outer edge of the fixed bottom plate. Compared with the two trigger pieces in Chinese Patent Publication No. CN1334775A, they have higher strength and reduce the trigger failure rate (one trigger piece can be triggered by being stuck on the first fixed step); in addition, the trigger piece is arc-shaped and can fit with the circular step of the lower part of the piston, avoiding damage to the lower step of the piston by the trigger pusher.

[0035] A pushing portion is provided at the lower part of the trigger piece, which abuts against the upper end surface of the valve stem and simultaneously serves to limit the upward movement of the trigger pusher. The valve stem pushing portion is three pairs of arc-shaped pushing portions, which are respectively located on three trigger pieces and can push the gas cylinder valve stem to move downward. The thickness of the three pairs of arc-shaped pushing portions is less than the thickness of the gas cylinder valve stem mouth. When the trigger pusher is fixed on the gas cylinder valve stem, it will not affect the gas flowing out of the nozzle mouth.

[0036] The present invention is provided with a filter, which is located at the lower part of the valve body and can filter the activated carbon powder in the carbon dioxide gas in the gas storage container bottle to make the gas pure and also avoid particles blocking the gas channel of the valve stem.

[0037] The above-mentioned variable pressure desorption automatic gas booster device is added to the beverage wine barrel. When the upper outlet valve of the barrel is not opened, the pressure of the upper and lower parts of the piston in the bottle cap is equal, the piston is in a pressure balance state, and does not move downward; when the upper outlet valve of the barrel is opened, the air pressure in the barrel becomes low, and the piston in the bottle cap of the booster device moves downward due to the upper and lower pressure difference, driving the trigger pusher to press the valve stem of the gas cylinder, and the generated gas replenishes the air pressure in the barrel in time until the pressure is balanced. The gas generated by the automatic device can increase the taste of beverages and wines, and can also generate a certain air pressure to force the liquid to flow into the pipeline, ensuring the liquid outflow rate of the barrel and the taste of beverages and wines.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The gas booster device of the present invention, for the piston part of the automatic booster device, a compression spring with a certain pressure is provided on the upper part of the piston, which is arranged in the cover body above the piston, and the upper and lower ends of the compression spring are respectively against the inner wall of the cover body and the upper end surface of the piston. The self-pressure of the compression spring can form a pressure difference with the space below the piston, thereby controlling the movement of the piston. The pressure generated by this compression spring is determined by its own material and the space above the piston. Compared with the single pressure chamber control of the prior art (Chinese Patent Publication No. CN1334775A), it has a certain pressure controllability adjustment (that is, springs with different performances can be replaced to increase or decrease the pressure difference), and can also increase the pressure difference, so that the piston movement is faster.

[0040] 2. A fixed sleeve with an open lower end is arranged in the piston mounting through hole in the pressure difference control mechanism described in the present invention, and the lower part of the fixed sleeve expands outward, thereby forming a first fixed step on the inner wall of the fixed sleeve. Compared with the groove structure adopted in the prior art, the step design can more easily clamp the three trigger pieces, and any one of the three trigger pieces stuck in the step position will play a pushing role, thereby reducing the trigger failure rate.

[0041] 3. Compared with the trigger member of the prior art which adopts two legs, the trigger push member of the gas booster device of the present invention is designed with three trigger plates, which can improve the overall strength and fatigue life of the trigger push member. In particular, during the excitation process, as long as one of the three trigger plates contacts the first fixed step, it can be successfully activated, thereby increasing the activation rate.

[0042] 4. The gas storage container of the present invention contains activated carbon and other materials that can adsorb and desorb gas, which can solve the problem of excessive gas pressure in the gas cylinder. It is safer and more reliable than traditional simple gas compression. On the other hand, it can make the gas output of the gas cylinder uniform, solving the problem that the high-pressure gas output is high at the beginning and low in the subsequent gas output; and the gas storage container can store more gas; in addition, the wall thickness of the gas storage container can be reduced, reducing consumables.

[0043] 5. The filter designed in the present invention is fixed on the valve body and is used to filter the activated carbon powder in the carbon dioxide gas in the bottle to purify the gas. The pure gas flows into the internal channel of the shell to prevent the gas channel from being blocked.

[0044] 6. Compared with the existing gas cylinder ports with an outward turn-down and a bottle bottom with an inward concave surface design, the gas storage container of the present invention has an inward turn-down design on the upper port, which can ensure that there will be no aluminum ion precipitation problem after soaking in beverages, thereby ensuring food safety; and the gas storage container adopts a flat thick bottom design, which can ensure the pressure-bearing capacity of the gas cylinder and can be pasted on the bottom of a large barrel, solving the problem of the existing gas cylinder concave bottom not being firmly pasted.

[0045] 7. The gas booster device of the present invention is small in size and does not require pipes, valves, instruments and other controls. It can be placed directly in a barrel to automatically generate gas. It is suitable for large shopping malls as well as home occasions such as parties. The pressure swing adsorption and desorption of gas used can reduce the amount of compressed gas and the pressure in the gas cylinder, while also reducing the danger, making the device emit gas evenly, improving the taste, and being safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0047] Figure 2 This is a structural cross section of an embodiment of the present invention (not activated and not deflated) Figure 1 ;

[0048] Figure 3 The structural cross section of the embodiment of the present invention (activated deflation) Figure 2 ;

[0049] Figure 4 This is a structural cross section of an embodiment of the present invention (activated but not deflated) Figure 3 ;

[0050] Figure 5 It is a structural cross-sectional view of the pressure difference control mechanism in an embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the structure of a gas storage container in an embodiment of the present invention;

[0052] Figure 7 for Figure 6 A magnified schematic diagram of part A;

[0053] Figure 8 It is a structural cross-sectional view of a valve stem in an embodiment of the present invention;

[0054] Fig. 9 A three-dimensional diagram of a trigger pusher in an embodiment of the present invention;

[0055] Fig.10Schematic diagram of the use status of an embodiment of the present invention. DETAILED DESCRIPTION

[0056] See also Figures 1 to 10 The gas pressurizing device for a beverage or wine barrel of the present invention comprises:

[0057] A gas storage container 1 is provided with an opening at the upper end, an inner cover 12 is provided in the port, a fixing portion 11 is formed by a protrusion in the middle of the inner cover 12, a through hole 111 is provided in the center of the fixing portion 11, and a fixing groove 112 is provided around the through hole 111 on the bottom surface of the fixing portion 11; a cover 2 is further provided at the upper end of the gas storage container 1, and the lower end of the cover 2 is snap-fitted to the gas storage container 1; a substance 3 capable of adsorbing and desorbing water vapor and carbon dioxide gas is placed in the gas storage container 2;

[0058] The pressure difference control mechanism 4 comprises:

[0059] The piston 41 is arranged in the cover body 2 at the upper end of the gas storage container 1. A first sealing ring 42 is embedded in the outer side surface of the piston 41 along the circumferential direction, and cooperates with the inner wall of the cover body 2 to form a closed structure; a mounting through hole 411 is arranged in the middle of the piston 41, and a fixing sleeve 43 with an open lower end is arranged in the mounting through hole 411. The upper part of the fixing sleeve 43 extends outward from the upper end surface of the piston 41, and the lower part of the fixing sleeve 43 expands outward, thereby forming a first fixing step 431 on the inner wall of the fixing sleeve 43;

[0060] A compression spring 44 is disposed in the cover body 2 above the piston 41, and the upper and lower ends of the compression spring 44 abut against the inner wall of the cover body 2 and the upper end surface of the piston 41 respectively;

[0061] The valve stem 45, whose lower part is inserted into the gas storage container 1 from the through hole 111 in the center of the fixing part 11 on the upper end surface of the gas storage container 1, is provided with a gas passage 451 with an upper end opening in the axial direction in the upper part of the valve stem 45, and an annular groove 452 is provided in the lower part of the outer wall of the valve stem 45 corresponding to the gas passage 451, and an outlet 453 communicating with the gas passage 451 is provided at the bottom of the annular groove 452; a second sealing ring 46 is provided in the annular groove 452;

[0062] The valve body 47 is a shell structure with upper and lower openings. The upper part of the valve body 47 is sleeved on the lower part of the valve stem 45. The upper end of the valve body 47 is inserted into the fixing groove 112 on the bottom surface of the fixing part 11 of the gas storage container 1. A step 471 is provided on the inner wall of the upper end of the valve body 47 to limit the outer edge of the second sealing ring 46. A second fixing step 472 is convexly provided on the lower part of the inner wall of the valve body 47.

[0063] The spring 48, the upper and lower ends of which respectively abut against the bottom of the valve stem 47 and the second fixed step 472 on the inner wall of the valve body 47;

[0064] The trigger pusher 49 comprises:

[0065] The fixed bottom plate 491 has a through hole 4911 in the center and is sleeved and fixed to the upper part of the valve stem 45;

[0066] Three triggering pieces 492 are respectively and vertically arranged on the outer edge of the fixed bottom plate 491 . A pushing portion 4921 is arranged at the lower portion of the triggering piece 492 . The pushing portion 4921 abuts against the upper end surface of the valve stem 45 .

[0067] Furthermore, a filter 5 is included, which is arranged at the lower end of the valve body 47.

[0068] Furthermore, an annular fixing groove 454 is provided on the upper outer wall of the valve stem 45, and correspondingly, an annular fixing portion 4912 is vertically provided on the inner edge of the central through hole 4911 of the fixing base plate 491 of the trigger push member 49, and the annular fixing portion 4912 is embedded in the annular fixing groove 454, so that the fixing base plate 491 of the trigger push member 49 is fixed to the upper part of the valve stem 45.

[0069] See also Figure 6 , Figure 7 The gas storage container 1 is open at the upper end, and an inner cover body 12 is arranged in the port, and a central part of the inner cover body 12 is raised to form a fixing part 11; and the port is designed as an inner flange structure.

[0070] Preferably, the bottom of the gas storage container 1 adopts a flat thick bottom design.

[0071] Preferably, the substance capable of adsorbing and desorbing water vapor and carbon dioxide gas is activated carbon particles.

[0072] Preferably, the lower end of the cover body is detachably snap-connected to the upper end of the gas storage container.

[0073] Preferably, the three trigger sheets are arc-shaped and can fit with the circular step at the lower part of the piston.

[0074] Preferably, the fixed bottom plate, three trigger sheets and the pushing portion of the trigger pusher are an integrated structure.

[0075] The gas boosting device of the present invention is placed in a beverage or wine barrel 100. When the upper outlet valve 200 of the beverage or wine barrel 100 is not opened, the pressures in the upper and lower spaces of the piston 41 in the cover body 2 of the gas storage container 1 in the gas boosting device are equal, and the piston 41 is in a pressure balance state and does not move downward.

[0076] When the upper outlet valve 200 of the beverage barrel 100 is opened, the air pressure in the barrel becomes low, and the piston 41 in the cover body 2 of the gas storage container 1 moves downward due to the upper and lower pressure difference, driving the trigger pusher 49 to press the valve stem 45, releasing the gas to timely replenish the air pressure in the beverage barrel 100 until the pressure is balanced.

[0077] The gas released by the gas booster can increase the taste of the beverage and wine, and can also generate a certain air pressure to force the liquid to flow into the straw 200, thereby ensuring the liquid outlet flow rate of the beverage barrel 100 and the taste of the beverage and wine.

[0078] Through the cooperation of the above structures, the gas booster device mainly has three working states: unactivated and not deflated, activated and not deflated, and activated and deflated.

[0079] Unactivated and undeflated state: Figure 2 As shown, three trigger plates are placed inside the mounting through hole in the center of the piston. Regardless of whether the piston is in a pressure balance state, that is, regardless of whether the piston moves up and down, the trigger pusher will not be activated, and the valve of the device will not be opened. This state is that the pressurizing device is not placed in a beverage barrel (gas storage container) and is in the factory transportation state, that is, an unactivated and undeflated state.

[0080] Activated undeflated state: Figure 4 As shown, the variable pressure desorption automatic gas boosting device is placed in a closed gas storage container, and a force greater than the compression spring (or pressure chamber) at the top of the piston is introduced into the gas storage container, causing the piston to move upward, and the three trigger plates naturally pop open and get stuck on the first fixed step at the bottom of the piston fixing sleeve to achieve activation. That is, at this time, the up and down movement of the piston can enable the trigger pusher to press the valve stem.

[0081] Activated Deflated state: Figure 3 As shown, when the pressure outside the variable pressure desorption automatic gas boosting device is less than the pressure of the compression spring (or pressure chamber) on the upper part of the piston, the piston moves downward, and the trigger pusher also moves downward. The three trigger sheet pushers push the valve stem downward, causing the second sealing ring on the valve stem to disengage from the annular groove and leak out of the air outlet. Since the internal pressure of the gas storage container is relatively high, gas is released.

Claims

1. A gas pressurizing device for beverage and wine barrels, characterized in that: include: The gas storage container has an opening at the upper end, an inner cover body is arranged in the port, a fixed part is formed by a protrusion in the middle of the inner cover body, a through hole is arranged in the center of the fixed part, and a fixed groove is arranged around the through hole on the bottom surface of the fixed part; a cover body is also arranged at the upper end of the gas storage container, and the lower end of the cover body is snap-connected with the gas storage container; a substance capable of adsorbing and desorbing water vapor or carbon dioxide gas is placed in the gas storage container; Differential pressure control mechanism, including: The piston is arranged in the cover body at the upper end of the gas storage container, and a first sealing ring is embedded in the outer side surface of the piston along the circumferential direction, which cooperates with the inner wall of the cover body to form a closed structure; a mounting through hole is arranged in the middle of the piston, and a fixing sleeve with an opening at the lower end is arranged in the mounting through hole, the upper part of the fixing sleeve extends outward from the upper end surface of the piston, and the lower part of the fixing sleeve expands outward, thereby forming a first fixing step on the inner wall of the fixing sleeve; A compression spring is arranged in the cover body above the piston, and the upper and lower ends of the compression spring abut against the inner wall of the cover body and the upper end surface of the piston respectively; The valve stem, the lower part of which is inserted into the gas storage container from the through hole in the center of the fixing part on the upper end surface of the gas storage container, the upper part of the valve stem is provided with a gas passage with an upper end opening along the axial direction, the outer wall of the valve stem body is provided with an annular groove at the lower part corresponding to the gas passage, and the bottom of the annular groove is provided with an outlet connected with the gas passage; a second sealing ring is provided in the annular groove; The valve body is a shell structure with upper and lower openings, the upper part of the valve body is sleeved on the lower part of the valve stem, the upper end of the valve body is inserted into the fixed groove on the bottom surface of the fixed part of the gas storage container, and a step is provided on the inner wall of the upper end of the valve body to limit the outer edge of the second sealing ring; a second fixed step is convexly provided on the lower part of the inner wall of the valve body; A spring, the upper and lower ends of which respectively abut against the bottom of the valve stem and the second fixed step of the inner wall of the valve body; The trigger pusher includes: A fixed bottom plate is provided with a through hole in the center and is sleeved and fixed to the upper part of the valve stem; Three trigger sheets are respectively and vertically arranged on the outer edge of the fixed bottom plate. A pushing portion is arranged at the lower part of the trigger sheet, and the pushing portion abuts against the upper end surface of the valve stem.

2. The gas pressurizing device for beverage and wine barrels according to claim 1, characterized in that: It also includes a filter, which is arranged at the lower end of the valve body.

3. The gas pressurizing device for beverage and wine barrels according to claim 1, characterized in that: An annular fixing groove is provided on the outer wall of the upper part of the valve stem. Correspondingly, an annular fixing portion is vertically provided on the inner edge of the central through hole of the trigger pusher fixing base plate. The annular fixing portion is embedded in the annular fixing groove, so that the trigger pusher fixing base plate is fixed to the upper part of the valve stem.

4. The gas pressurizing device for drinking water barrels according to claim 1, 2 or 3, characterized in that: The three triggering pieces of the trigger pushing member are arc-shaped.

5. The gas pressurizing device for beverage and wine barrels as claimed in claim 1, 2, 3 or 4, characterized in that: The fixed bottom plate, three trigger sheets and the pushing part of the trigger pusher are an integrated structure.

6. The gas pressurizing device for beverage and wine barrels as claimed in claim 1, 2, 3 or 4, characterized in that: The lower end of the cover body is detachably snap-connected to the upper end of the gas storage container.

7. The gas pressurizing device for drinking water barrels according to claim 1, 2, 3, 4 or 6, characterized in that: The gas storage container is open at the upper end, and an inner cover is arranged in the port, and a central part of the inner cover is raised to form a fixing part; and the port is designed as an inner flange structure.

8. The gas pressurizing device for drinking water barrels according to claim 1, 2, 3, 4, 6 or 7, characterized in that: The bottom of the gas storage container adopts a flat thick bottom design.

9. The gas pressurizing device for beverage and wine barrels according to claim 1, characterized in that: The substance capable of adsorbing and desorbing water vapor or carbon dioxide gas is activated carbon particles.

Images