Alcoholic drink barrel

Abstract

An alcoholic drink barrel, comprising a barrel body (1), wherein a gas bottle (2) is provided in the barrel body (1); a gas bottle valve (3) is provided on the gas bottle (2); the gas bottle (2) has a bottle opening portion (21) at the top; a piston hole (22) is formed in the bottle opening portion (21); a piston (4) is slidably arranged in the piston hole (22); a closed pressure cavity (6) is formed between the upper side surface of the piston (4) and the inner wall of the piston hole (22); a trigger disc (5) is provided in the bottle opening portion (21) and located on the lower side of the piston (4); the trigger disc (5) comprises a main body portion (51) slidably connected to the bottle opening portion (21); a limiting portion (23) is provided on the bottle opening portion (21) and can limit the upward movement stroke of the trigger disc (5); and a vent hole (52) is formed in the main body portion (51) to enable the space between the trigger disc (5) and the piston (4) to be in communication with the inner cavity of the barrel body (1).

Description

A wine barrel Technical Field

[0001] The invention belongs to the technical field of wine drinking equipment and relates to a wine barrel. Background Art

[0002] A wine barrel is a tool used to hold liquid wine, such as beer. Generally, a wine spear is provided at the mouth of the wine barrel, and the wine spear cooperates with a dispenser to draw out the beer in the wine barrel. In order to draw out the beer in the wine barrel, a traditional wine barrel usually installs a dispenser on the wine spear. The dispenser has a wine outlet and an air inlet, wherein the air inlet is externally connected to a carbon dioxide gas tank or other external high-pressure gas tank. The carbon dioxide gas tank is taken as an example below. When the dispenser is opened, the high-pressure gas in the carbon dioxide gas tank flows through the dispenser into the wine barrel, causing high pressure to be generated in the wine barrel, and the beer flows out through the wine outlet of the dispenser under the action of the high pressure. This type of wine barrel requires an external carbon dioxide gas tank, so if there is no matching carbon dioxide gas tank on site, the wine barrel cannot be used normally, resulting in the problem of insufficient convenience of use of the wine barrel.

[0003] In view of the above-mentioned deficiencies in existing wine barrels, people have invented a wine barrel structure with an embedded gas cylinder, such as an automatic pressurization and cooling device disclosed in the patent document (application number: 202310218601.9), which includes a beer barrel body, a gas cylinder is installed on the beer barrel body, and a pressure release device is fixedly installed on the top of the gas cylinder. The starting device of the pressure release device consists of a sealing chamber, a piston and a control pressure rod. The internal sleeve of the sealing chamber is connected to the piston, and the bottom end of the control pressure rod is in contact with the gas outlet end of the gas cylinder. When the air pressure inside the beer barrel body decreases, the piston inside the pressure release device moves downward under the action of the air pressure, and drives the control pressure rod to move downward together to open the gas cylinder, so that the carbon dioxide gas inside the gas cylinder is released, and the air pressure inside the beer barrel body rises. As the air pressure in the beer barrel body rises, it will eventually push the piston to move upward, and drive the control pressure rod to move upward to close the gas cylinder, thereby ensuring that the pressure inside the beer barrel body remains constant. Although the pressure release device of this wine barrel maintains a constant pressure inside the barrel, it still has the following shortcomings: due to the internal pressure in the closed chamber formed on the upper part of the piston, when the wine barrel is stored or transported in an empty state, the inside of the wine barrel is usually at normal atmospheric pressure and there is no high-pressure gas. At this time, under the action of the above-mentioned internal pressure, the piston will be pushed down and the pressure release device on the gas cylinder will be opened, so that the gas cylinder will release gas even when the wine barrel does not need to release wine, resulting in gas waste. In addition, when the wine barrel is made of plastic material, the high-pressure gas released from the gas cylinder will cause high pressure to be generated inside the wine barrel. During transportation, the high pressure generated inside the plastic wine barrel is not conducive to transportation safety because there is a risk of the plastic wine barrel bursting or even exploding.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and propose a wine barrel. The technical problem to be solved by the present invention is to solve the problem that during the transportation and storage of empty wine barrels, the gas cylinders in the wine barrels will release gas prematurely and cause gas waste, while at the same time improving the stability of the wine barrels.

[0006] The objectives of the present invention can be achieved through the following technical solutions: A wine barrel, comprising a barrel body, a gas cylinder is arranged in the barrel body and a gas cylinder valve is provided on the gas cylinder, a bottle mouth is provided at the top of the gas cylinder, a piston hole is provided in the bottle mouth, a piston is slidably provided in the piston hole, and a closed pressure chamber is formed between the upper side of the piston and the inner wall of the piston hole, characterized in that a trigger disk is further provided in the bottle mouth and located on the lower side of the piston, the trigger disk includes a main body slidably connected to the bottle mouth, a limit portion is provided on the bottle mouth that can limit the upward movement stroke of the trigger disk, the main body is provided with a vent hole that connects the space between the trigger disk and the piston with the inner cavity of the barrel body, the main body is further provided with an upwardly extending elastic sheet, the piston has an escape space for accommodating the elastic sheet and allowing the piston to move downward relative to the trigger disk, the upward movement of the piston can cause the elastic sheet to elastically recover and leave the escape space, after the elastic sheet leaves the escape space, the piston can press the elastic sheet downward and drive the trigger disk to move downward to open the gas cylinder valve.

[0007] In this wine barrel, an escape space is provided on the piston. After the wine barrel is manufactured, the elastic sheet is in the escape space. In this state, the pressure regulating function of the wine barrel is inactive. At this time, during the transportation and storage of the empty barrel, although the barrel body is at normal atmospheric pressure and there is no high-pressure gas, the piston will move downward under the pressure of the pressure chamber. However, during the downward movement of the piston, the elastic sheet on the trigger disk will only slide along the inner wall of the escape space, and will not move downward with the piston to open the gas cylinder valve, thereby avoiding gas waste.

[0008] When the wine barrel is delivered to the user, the user first needs to activate the pressure regulating function of the wine barrel. The specific activation method is as follows: the user injects a certain amount of high-pressure gas into the wine barrel, so that the gas pressure in the barrel gradually increases. At this time, since there is a vent hole on the main body, the vent hole connects the space between the trigger disk and the piston with the inner cavity of the wine barrel. Therefore, when the high-pressure gas is filled into the wine barrel and the gas pressure in the barrel increases, the gas pressure in the space between the trigger disk and the piston will also increase, thereby pushing the piston upward, and finally causing the elastic sheet to elastically recover and leave the avoidance space. After the elastic sheet leaves the avoidance space, the pressure regulating function of the wine barrel is activated. At this time, when the pressure in the barrel decreases, the piston can press down on the elastic sheet and drive the trigger disk downward to open the gas cylinder valve, so that the gas in the gas cylinder can be discharged into the barrel, causing the gas pressure in the barrel to increase. After the gas pressure increases to the set value, it will push the piston upward and close the gas cylinder valve. In this way, the gas pressure in the barrel is maintained within a certain range to meet the requirements of wine output.

[0009] The pressure regulating function of this wine barrel has two states: inactive and active. When the empty barrel is transported and stored, the pressure regulating function is inactive, which can prevent the gas cylinder in the barrel from releasing gas prematurely and causing gas waste. Furthermore, on the basis of avoiding gas waste, the present invention also needs to consider the stability of the wine barrel during use, and thus has a special creative improvement in the structure of the trigger disk:

[0010] On the one hand, since the trigger plate is slidably connected to the bottle mouth through its main body, the trigger plate will be guided by the bottle mouth during the up and down movement, thereby enabling the trigger plate to move stably and accurately, ensuring that the trigger plate and the piston always maintain a high degree of matching accuracy, thereby improving the stability of the wine barrel.

[0011] On the other hand, when activating the pressure regulating function, a certain amount of high-pressure gas needs to be filled into the barrel body. During this process, the trigger plate will also be subjected to the thrust of the high-pressure gas. The wine barrel is provided with a limiting part on the bottle mouth. Since the limiting part can limit the upward movement of the trigger plate, it can ensure that the trigger plate will not move upward when the piston moves upward to activate the adjustment component, and the trigger plate will not continue to move upward due to the action of the high-pressure gas, thereby ensuring that the elastic sheet on the trigger plate can smoothly perform elastic recovery to leave the avoidance space, avoiding the situation of activation failure, and making the use of the wine barrel more stable and reliable.

[0012] Thirdly, by arranging an elastic sheet on the trigger disk, the trigger disk is a relatively large component, so it is relatively convenient to manufacture an elastic sheet on its upper part, and it is also beneficial to improve the connection strength of the elastic sheet, ensuring that the trigger disk and the piston always maintain a stable and precise fit, thereby further improving the stability of the wine barrel during use.

[0013] In the above-mentioned wine barrel, the middle part of the main body has a raised portion protruding upward, the top of the raised portion has a pressing piece and a clearance hole is formed inside the raised portion, the upper end of the gas cylinder valve extends into the clearance hole and can abut against the pressing piece, and the elastic sheet is integrally formed on the raised portion.

[0014] By providing a pressing plate on the raised portion so as to abut against the upper end of the gas cylinder valve, the trigger disk can press the gas cylinder valve downward when it moves downward, thereby opening the gas cylinder valve. In the process of the trigger disk moving upward, it does not form a pulling effect on the gas cylinder valve, thereby protecting the gas cylinder valve and improving the stability of the wine barrel. In addition, a clearance hole is formed in the raised portion, so that the gas cylinder valve can always be confined in the clearance hole, thereby ensuring that the trigger disk can smoothly press the gas cylinder valve to open the gas cylinder valve each time it moves downward, so that the use of the wine barrel is more stable and reliable. Moreover, after providing the raised raised portion, the elastic sheet is integrally formed on the raised portion, which can increase the connection strength of the lower end connection of the elastic sheet, thereby ensuring that the elastic sheet and the piston always maintain a stable and precise fit, thereby further improving the stability of the wine barrel during use.

[0015] In the aforementioned wine barrel, the cylinder valve has an exhaust hole, and the pressing plate has an exhaust hole directly opposite the exhaust hole. This design allows the gas in the cylinder to be discharged sequentially through the exhaust hole and the exhaust hole after the cylinder valve is opened, ensuring a smooth exhaust process.

[0016] In the above-mentioned wine barrel, the bottle mouth has a guide hole located on the lower side of the piston hole and connected to the piston hole. The diameter of the guide hole is larger than the diameter of the piston hole and the guide hole is concentrically arranged with the piston hole. The edge of the main body has a cylindrical guide portion that slides with the guide hole. The limiting portion is an annular step surface located at the junction of the piston hole and the guide hole, which can be used for the upper end face of the guide portion to abut. By cooperating with the cylindrical guide portion and the guide hole, the guiding effect of the trigger disk can be improved, so that the trigger disk can move up and down stably and accurately, thereby ensuring that the matching accuracy between the trigger disk and the piston is always high, and improving the stability of the wine barrel. The annular step surface formed by connecting piston holes and guide holes of different diameters can not only effectively limit the upward movement of the trigger disk, but also has the advantages of convenient manufacturing and low manufacturing cost.

[0017] In the aforementioned wine barrel, the main body is disc-shaped, and the number of the elastic plates is at least two. Each elastic plate is centrally symmetrically distributed on the raised portion. An air hole is formed between each elastic plate and the pressing plate. The number of the air holes is multiple and the multiple air holes are sequentially arranged around the raised portion. By providing multiple elastic plates and symmetrically distributing each elastic plate on the raised portion, the trigger plate is subjected to balanced forces when the piston drives the trigger plate downward. At the same time, the guiding effect provided by the main body on the trigger plate ensures high stability during the downward movement of the trigger plate, ensuring a high degree of fit between the trigger plate and the piston, and improving the stability of the wine barrel. In addition to the multiple air holes, the trigger plate also cleverly utilizes the air hole between the elastic plate and the pressing plate. This design greatly increases the ventilation area of ​​the trigger plate, allowing the piston to promptly and accurately sense changes in gas pressure within the wine barrel. The piston then accurately adjusts the gas pressure within the barrel through its upward and downward movement, ensuring that the gas pressure within the barrel is always maintained within an appropriate range to meet wine dispensing requirements. The outer edge here with a slightly raised edge of a certain height also belongs to the disc shape defined in this case.

[0018] In the above-mentioned wine barrel, the piston includes a cylindrical body and a relief portion located inside the body, the lower end of the relief portion is open and the upper end has a top plate body that closes the upper end of the relief portion, the chamber formed in the relief portion is the above-mentioned relief space, and the outer peripheral surface of the body is provided with a sealing ring that is close to the inner wall of the piston hole. The cylindrical body can increase the contact area between the piston and the piston hole, thereby increasing the guiding effect of the piston hole on the piston, so that the piston can move up and down stably. By arranging the relief portion in the body, the space inside the body is effectively utilized to arrange the relief portion, and on the basis of improving the guiding effect of the piston, it is beneficial to reduce the axial size of the piston, so that the device has the advantage of a compact structure. Preferably, an annular mounting groove is provided on the outer peripheral surface of the piston body, and the sealing ring is embedded in the annular mounting groove, which can increase the installation stability of the sealing ring and improve the sealing effect.

[0019] In the aforementioned wine barrel, a vent notch is provided at the junction of the piston hole and the guide hole. When the elastic sheet is located within the relief space and the piston moves until the sealing ring on the piston is located at the vent notch, the pressure chamber can communicate with the barrel's inner cavity through the vent notch. When the barrel's pressure regulation function is inactive, normally, as the piston moves downward, the pressure chamber volume gradually increases, and the pressure in the pressure chamber gradually decreases. When the pressure decreases to the same level as the barrel's inner cavity, the piston stops moving downward. At this point, the piston's downward travel is insufficient to drive the piston downward to open the cylinder valve. In unexpected situations, such as negative pressure within the barrel, the piston's downward movement may increase. In this case, the vent notch allows the sealing ring to move to the vent notch, allowing the pressure in the pressure chamber to be released and released. This effectively prevents the cylinder valve from accidentally opening even in these unexpected situations, providing a double safeguard, ensuring that the cylinder will not release prematurely during transportation and storage of the empty barrel.

[0020] In the above-mentioned wine barrel, the number of the air relief notches is multiple, and the multiple air relief notches are sequentially spaced along the circumference of the piston hole. Such a design can enhance the pressure relief effect when the pressure chamber needs to be relieved.

[0021] In the aforementioned wine barrel, a positioning hole is defined on the lower end surface of the body, into which the lower end of the relief portion extends. An annular groove with a downwardly directed notch is formed between the outer wall of the relief portion and the wall of the positioning hole. The bottom of the annular groove forms a contact pressure surface, against which the upper end of the elastic sheet can abut after the elastic sheet leaves the relief space. After the wine barrel's pressure-regulating function is activated, the elastic sheet is confined within the annular groove. As the piston moves downward, the piston, relying on its contact pressure surface, can stably drive the trigger plate downward without the elastic sheet separating from the contact pressure surface, thereby ensuring stable and reliable use of the wine barrel.

[0022] In the aforementioned wine barrel, when the upper end of the elastic sheet is located within the escape space, the elastic sheet abuts against the inner sidewall of the escape portion. When the piston moves upward until the upper end of the elastic sheet clears the inner sidewall of the escape portion, the elastic sheet is able to expand outward and extend into the annular groove. When the elastic sheet abuts against the inner sidewall of the escape portion, it tends to expand outward. This allows the elastic sheet to elastically recover after clearing the inner sidewall of the escape portion as the piston moves upward during the activation of the wine barrel's pressure regulation function, further expanding outward and extending into the annular groove. This facilitates the operation of activating the pressure regulation function.

[0023] In the aforementioned wine barrel, the bottle mouth comprises a piston sleeve with a piston hole formed therein. The trigger plate is located within the piston sleeve, with the main body of the trigger plate slidably connected to the inner wall of the piston sleeve. The piston sleeve is manufactured separately, which improves manufacturing precision, resulting in an inner surface that mates more precisely with the piston, enhancing the sealing effect between the piston and the inner wall of the piston sleeve, ensuring the airtightness of the pressure chamber, and allowing the piston to slide more stably within the piston sleeve.

[0024] Compared with the existing technology, this wine barrel has the following advantages:

[0025] 1. The pressure regulating function of this wine barrel has an inactive state and an active state, so that during the transportation and storage of empty wine barrels, the pressure regulating function is in an inactive state, which can avoid the gas cylinder in the wine barrel releasing gas prematurely and causing gas waste.

[0026] 2. The trigger plate is slidably connected to the bottle mouth through its main body, so that the trigger plate will be guided by the bottle mouth during the up and down movement, thereby making the trigger plate move stably and accurately, ensuring that the matching accuracy between the trigger plate and the piston is always high, thereby improving the stability of the wine barrel.

[0027] 3. The wine barrel is provided with a limit part on the bottle mouth, which limits the upward movement of the trigger disk through the limit part, so as to ensure that the trigger disk will not move upward when the piston moves upward to activate the adjustment component, and the trigger disk will not move upward due to the action of high-pressure gas, thereby ensuring that the elastic sheet on the trigger disk can smoothly perform elastic recovery to leave the avoidance space, avoiding the situation of activation failure, and making the use of the wine barrel more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a cross-sectional view of the wine barrel.

[0029] FIG2 is a partial cross-sectional view of the wine barrel when the pressure regulating function is in an inactive state.

[0030] FIG3 is a schematic diagram of the process of activating the pressure regulating function of the wine barrel.

[0031] FIG4 is a partial cross-sectional view of the wine barrel when the pressure regulating function is activated.

[0032] FIG5 is a partial cross-sectional view of the piston driving the trigger plate to move downward to open the cylinder valve.

[0033] FIG6 is a schematic diagram of the three-dimensional structure of the trigger disk.

[0034] FIG7 is a cross-sectional view of the bottle mouth.

[0035] FIG8 is a schematic diagram of the three-dimensional structure of the piston.

[0036] FIG9 is a schematic diagram of the three-dimensional structure of the piston from another perspective.

[0037] FIG10 is an enlarged view of point A in FIG1 .

[0038] FIG11 is a cross-sectional view of the fourth embodiment of the wine barrel.

[0039] FIG12 is an enlarged view of point A in FIG11 .

[0040] In the figure, 1, barrel; 2, gas cylinder; 21, bottle mouth; 22, piston hole; 23, limit part; 24, guide hole; 25, air release gap; 26, air passage; 27, piston sleeve; 3, gas cylinder valve; 31, exhaust hole; 32, spring; 33, radial through hole; 34, seal; 4, piston; 41, avoidance space; 42, body; 421, positioning hole; 43, avoidance part; 431, top Plate body; 44, annular mounting groove; 45, annular groove; 46, contact pressure surface; 5, trigger plate; 51, main body; 511, guide part; 52, vent hole; 53, elastic sheet; 54, raised part; 541, pressing sheet; 542, clearance hole; 543, air outlet hole; 56, air hole; 6, pressure chamber; 7, sealing ring; 8, wine bag; 9, wine guide tube; 10, wine spear; 11, wine outlet pipe. DETAILED DESCRIPTION

[0041] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0042] Example 1

[0043] As shown in Figure 1, the wine barrel includes a barrel body 1, and a wine spear 10 is provided at the barrel mouth of the barrel body 1. The wine spear 10 usually has an air inlet passage and a wine outlet passage. The wine outlet passage of the wine spear 10 is connected to a wine outlet pipe 11. A gas cylinder 2 is provided in the barrel body 1 and a gas cylinder valve 3 is provided on the gas cylinder 2. A wine bag 8 made of flexible material is provided in the barrel body 1, and the wine bag 8 is used to hold beer. A wine guide pipe 9 is provided next to the gas cylinder 2. When the gas cylinder valve 3 of the gas cylinder 2 is opened, the gas in the gas cylinder 2 is released into the space outside the wine bag 8 in the barrel body 1, thereby compressing the wine bag 8, so that the beer in the wine bag 8 flows out through the wine guide pipe 9, the wine outlet passage of the wine spear 10, and the wine outlet pipe 11 in sequence.

[0044] As shown in Figure 2, the top of the gas cylinder 2 has a bottle mouth 21 and a piston hole 22 is provided in the bottle mouth 21. The bottle mouth 21 is threadedly connected to the wine spear 10, and a piston 4 is slidably provided in the piston hole 22. A closed pressure chamber 6 is formed between the upper side of the piston 4 and the inner wall of the piston hole 22. A trigger disk 5 is also provided in the bottle mouth 21 and is located on the lower side of the piston 4. The trigger disk 5 includes a main body 51 that is slidably connected to the bottle mouth 21. The bottle mouth 21 is provided with a limit portion 23 that can limit the upward movement stroke of the trigger disk 5. The main body 51 is provided with a vent hole 52 that connects the space between the trigger disk 5 and the piston 4 with the inner cavity of the barrel body 1. The main body 51 is also provided with an elastic sheet 53 extending upward. As shown in Figure 2, the piston 4 has an escape space 41 for accommodating the elastic sheet 53 and allowing the piston 4 to move downward relative to the trigger disk 5. In combination with Figures 3 and 4, the elastic sheet 53 can leave the escape space 41 by moving the piston 4 upward. As shown in Figure 5, after the elastic sheet 53 leaves the escape space 41, the piston 4 can press the elastic sheet 53 downward and drive the trigger disk 5 to move downward to open the gas cylinder valve 3.

[0045] Furthermore, as shown in Figures 5 and 6 , the middle portion of the main body 51 has an upwardly projecting protrusion 54. The top of the protrusion 54 has a pressing piece 541, and a clearance hole 542 is formed inside the protrusion 54. The upper end of the cylinder valve 3 extends into the clearance hole 542 and can abut against the pressing piece 541. The elastic piece 53 is integrally formed with the protrusion 54. The cylinder valve 3 has a vent hole 31, and the pressing piece 541 has a gas outlet hole 543 that is directly opposite the vent hole 31. After the cylinder valve 3 is opened, the gas in the cylinder 2 can be discharged through the vent hole 31 and the gas outlet hole 543 in sequence. The main body 51 is disc-shaped, and the number of elastic sheets 53 is two. Of course, in the actual manufacturing process, the number of elastic sheets 53 can also be three, four, etc. The elastic sheets 53 are centrally symmetrically distributed on the raised portion 54, and an air hole 56 is formed between each elastic sheet 53 and the pressing sheet 541. There are multiple air holes 52, and the multiple air holes 52 are arranged in sequence around the raised portion 54.

[0046] As shown in Figures 5 and 7 , the bottle mouth portion 21 has a guide hole 24 located below and connected to the piston hole 22. The diameter of the guide hole 24 is larger than that of the piston hole 22 and is concentric with the piston hole 22. The edge of the main body 51 has a cylindrical guide portion 511 that slidably engages with the guide hole 24. The limiting portion 23 is an annular step surface located at the junction of the piston hole 22 and the guide hole 24, against which the upper end surface of the guide portion 511 abuts. The formation of the annular step surface by the connection between the piston hole 22 and the guide hole 24 of different diameters not only effectively limits the upward travel of the trigger disk 5, but also has the advantages of easy manufacturing and low manufacturing cost.

[0047] As shown in Figures 8 and 9, the piston 4 includes a cylindrical body 42 and a relief portion 43 located inside the body 42. The relief portion 43 is open at the lower end and has a top plate 431 at the upper end that closes the upper end of the relief portion 43. The chamber formed in the relief portion 43 is the aforementioned relief space 41. The outer circumferential surface of the body 42 is provided with a sealing ring 7 that rests against the inner wall of the piston hole 22. The cylindrical body 42 can increase the contact area between the piston 4 and the piston hole 22, thereby increasing the guiding effect of the piston hole 22 on the piston 4, allowing the piston 4 to move up and down stably. An annular mounting groove 44 is provided on the outer circumferential surface of the piston body 42, and the sealing ring 7 is embedded in the annular mounting groove 44. This can increase the installation stability of the sealing ring 7 and improve the sealing effect. A positioning hole 421 is provided on the lower end surface of the main body 42, and the lower end of the avoidance portion 43 extends into the positioning hole 421, and an annular groove 45 with a notch facing downward is formed between the outer wall of the avoidance portion 43 and the hole wall of the positioning hole 421. The bottom of the annular groove 45 forms a contact pressure surface 46. When the upper end of the elastic sheet 53 is located in the avoidance space 41, the elastic sheet 53 abuts against the inner wall of the avoidance portion 43. When the piston 4 moves upward until the upper end of the elastic sheet 53 is separated from the inner wall of the avoidance portion 43, the elastic sheet 53 can expand and deform outward and extend into the annular groove 45.

[0048] As shown in Figure 7, a venting notch 25 is provided at the junction of the piston hole 22 and the guide hole 24. When the elastic sheet 53 is located within the escape space 41 and the piston 4 moves until the sealing ring 7 on the piston 4 is located at the venting notch 25, the pressure chamber 6 can communicate with the inner cavity of the barrel body 1 through the venting notch 25. There are multiple venting notches 25, and the multiple venting notches 25 are arranged in sequence along the circumference of the piston hole 22. When the pressure regulation function of the wine barrel is not activated, under normal circumstances, as the piston 4 moves downward, the space of the pressure chamber 6 gradually increases, and the pressure in the pressure chamber 6 gradually decreases. When the pressure decreases to the same level as the inner cavity pressure of the barrel body 1, the piston 4 stops moving downward. At this time, the downward stroke of the piston 4 is not sufficient to drive the piston 4 downward to open the gas cylinder valve 3. In the event of some unexpected situation, such as the occurrence of negative pressure in the barrel body 1, the downward movement of the piston 4 may increase. At this time, by setting the air relief notch 25, when the sealing ring 7 moves to the air relief notch 25, the air relief notch 25 can connect the pressure chamber 6 with the inner cavity of the barrel body 1, thereby allowing the gas in the pressure chamber 6 to be discharged to achieve pressure relief. In this way, even if the above unexpected situation occurs, it can effectively prevent the gas cylinder valve 3 from being accidentally opened, thereby achieving double insurance and ensuring that the gas cylinder 2 will not be released prematurely during the transportation and storage of the empty barrel.

[0049] The following describes the working principle of this wine barrel:

[0050] The pressure regulating function of this wine barrel has two states: inactive and active.

[0051] ① When transporting and storing empty barrels (pressure regulation function is not activated):

[0052] As shown in Figure 2, the bottle mouth 21 is provided with a gas passage 26, which is always connected to the interior of the barrel body 1. Since the pressure chamber 6 is sealed, a certain pressure exists. When the pressure regulating function is inactive, the elastic plate 53 on the trigger plate 5 is located within the escape space 41. At this time, a gap h exists between the upper end of the elastic plate 53 and the top wall of the escape space 41. During transportation and storage of the empty barrel, although the barrel body 1 is at normal atmospheric pressure and does not contain high-pressure gas, the piston 4 moves downward under the pressure of the pressure chamber 6. However, during this downward movement, the elastic plate 53 on the trigger plate 5 only slides against the inner wall of the escape space 41 and does not move downward with the piston 4. As the piston 4 moves downward, the pressure chamber 6 gradually expands, and the pressure in the pressure chamber 6 gradually decreases. When the pressure in the pressure chamber 6 reaches the same level as the pressure in the barrel body 1, the piston 4 stops moving downward. At this point, the downward stroke of the piston 4 is insufficient to drive the piston 4 downward to open the cylinder valve 3. Alternatively, in some cases, after the piston 4 moves downward to reduce the pressure in the pressure chamber 6 , the pressure in the pressure chamber 6 is insufficient to overcome the pressure of the spring 32 in the cylinder valve 3 and push the cylinder valve 3 to open.

[0053] The pressure regulating function of the wine barrel is in an inactivated state, so that during the transportation and storage of the empty wine barrel, the gas cylinder 2 in the wine barrel can be prevented from releasing gas in advance, thereby preventing gas waste and loss.

[0054] ②. The voltage regulation function is switched to the active state.

[0055] When the beer barrel is delivered to the user, the user first pours beer into the beer bag 8 to complete the beer filling operation. Afterwards, the pressure regulating function needs to be switched to the activated state so that the beer barrel can be used normally and the constant pressure function can be realized. The specific switching method is as shown in Figure 10. There is a gas passage on the beer spear 10. A certain amount of high-pressure gas is injected into the barrel body 1 through the external pumping device on the beer spear 10. During this process, the gas enters the barrel body 1 through the path indicated by the dotted line in Figure 10, so that the pressure in the barrel body 1 gradually increases. At this time, since the space under the piston 4 and the internal pressure of the barrel body 1 are always constant, the high-pressure gas in the barrel body 1 will push the piston 4 to move upward. When it moves upward to the state shown in Figure 3, the elastic sheet 53 on the trigger disk 5 will escape from the avoidance space 41, and then open outward under the action of the elastic restoring force and extend into the annular groove 45 next to it. At this time, the pumping device on the wine spear 10 is removed, the pressure in the barrel body 1 is reduced, and the piston 4 moves downward under the action of the pressure chamber 6, so that the elastic piece 53 abuts against the contact pressure surface 46, as shown in Figure 4. This state is the activated state of the pressure regulation function.

[0056] ③. Working principle of voltage regulation

[0057] When the pressure regulating function is in the activated state shown in Figure 5, during use, as the beer in the barrel gradually flows out, the gas pressure in the barrel body 1 gradually decreases. At this time, the piston 4 moves downward under the action of the pressure chamber 6, and pushes the trigger disk 5 downward, and then pushes the cylinder valve 3 downward to open the cylinder valve 3, so that the radial through hole 33 on the cylinder valve 3 is no longer blocked by the seal 34, as shown in Figure 5. At this time, the gas in the cylinder 2 is discharged to the space outside the wine bag 8 in the barrel body 1 through the path shown by the dotted line in Figure 5, through the radial through hole 33, the exhaust hole 31, the air outlet through hole 543, and the air passage 26, so that the gas pressure in the barrel body 1 increases. After the gas pressure increases to the set value, it will push the piston 4 to move upward and close the cylinder valve 3, so that the gas pressure in the barrel body 1 is maintained within a certain range to meet the requirements of wine discharge.

[0058] Example 2

[0059] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: no wine bag 8 is provided in the barrel body 1, a wine guide tube 9 is provided on one side of the gas cylinder 2, and the beer is directly loaded into the barrel body 1. When the gas cylinder valve 3 of the gas cylinder 2 is opened, the gas in the gas cylinder 2 is released into the barrel body 1, thereby increasing the gas pressure in the barrel body 1. The gas pressure acts on the beer liquid surface, causing the beer in the barrel body 1 to flow out through the wine guide tube 9, the wine outlet passage of the beer spear 10, and the wine outlet pipe 11 in sequence.

[0060] Example 3

[0061] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: no wine bag 8 is provided in the barrel body 1, a wine guide tube 9 is provided on one side of the gas cylinder 2, and beer is placed in the wine bag 8. When the gas cylinder valve 3 of the gas cylinder 2 is opened, the gas in the gas cylinder 2 is released into the space inside the wine bag 8 in the barrel body 1, thereby increasing the gas pressure in the wine bag 8. The gas pressure acts on the beer liquid surface, causing the beer in the wine bag 8 to flow out through the wine guide tube 9, the wine outlet passage of the wine spear 10, and the wine outlet pipe 11 in sequence.

[0062] Example 4

[0063] As shown in Figures 11 and 12, this embodiment has essentially the same structure and principle as the first embodiment, differing in that: the bottle mouth portion 21 includes a piston sleeve 27, a piston hole 22 formed therein, a trigger plate 5 located within the piston sleeve 27, and a main body 51 of the trigger plate 5 slidably connected to the inner wall of the piston sleeve 27. The piston sleeve 27 is manufactured separately, which improves manufacturing precision and, in turn, produces an inner surface with a higher precision of fit with the piston 4. This improves the sealing effect between the piston 4 and the inner wall of the piston sleeve 27, ensuring the airtightness of the pressure chamber 6, while also allowing the piston 4 to slide more stably within the piston sleeve 27.

[0064] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0065] Although this article uses more 1, barrel; 2, gas cylinder; 21, bottle mouth; 22, piston hole; 23, limit part; 24, guide hole; 25, air release gap; 26, air passage; 3, gas cylinder valve; 31, exhaust hole; 32, spring; 33, radial through hole; 34, seal; 4, piston; 41, avoidance space; 42, body; 421, positioning hole; 43, avoidance part; 431, top plate; 44, annular installation The present invention is described herein with reference to the following terms: mounting groove; 45, annular groove; 46, contact surface; 5, trigger plate; 51, main body; 511, guide portion; 52, vent hole; 53, elastic sheet; 54, raised portion; 541, pressing sheet; 542, clearance hole; 543, air outlet hole; 56, air hole; 6, pressure chamber; 7, sealing ring; 8, wine bag; 9, wine guide tube; 10, wine spear; 11, wine outlet tube, etc., but the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A wine barrel, comprising a barrel body (1), a gas cylinder (2) is arranged in the barrel body (1), and a gas cylinder valve (3) is arranged on the gas cylinder (2), the top of the gas cylinder (2) has a bottle mouth (21), and a piston hole (22) is arranged in the bottle mouth (21), a piston (4) is slidably arranged in the piston hole (22), and a closed pressure chamber (6) is formed between the upper side surface of the piston (4) and the inner wall of the piston hole (22), characterized in that: A trigger plate (5) is also provided in the bottle mouth (21) and is located below the piston (4). The trigger plate (5) comprises a main body (51) slidably connected to the bottle mouth (21). A limit portion (23) capable of limiting the upward movement of the trigger plate (5) is provided on the bottle mouth (21). A vent hole (52) is provided on the main body (51) so that the space between the trigger plate (5) and the piston (4) is connected to the inner cavity of the barrel body (1). The main body (51) is also provided with a vent hole (52) for connecting the space between the trigger plate (5) and the piston (4) to the inner cavity of the barrel body (1). The piston (4) has an elastic sheet (53) extending upward, and the piston (4) has an escape space (41) for accommodating the elastic sheet (53) and enabling the piston (4) to move downward relative to the trigger disk (5). The upward movement of the piston (4) enables the elastic sheet (53) to elastically recover and leave the escape space (41). After the elastic sheet (53) leaves the escape space (41), the piston (4) can press the elastic sheet (53) downward and drive the trigger disk (5) to move downward to open the gas cylinder valve (3).

2. The wine barrel according to claim 1, characterized in that: The middle part of the main body (51) is provided with a protruding portion (54) protruding upward, the top of the protruding portion (54) is provided with a pressing sheet (541), and a clearance hole (542) is formed inside the protruding portion (54), the upper end of the gas cylinder valve (3) extends into the clearance hole (542) and can abut against the pressing sheet (541), and the elastic sheet (53) is integrally formed on the protruding portion (54).

3. The wine barrel according to claim 2, characterized in that: The gas cylinder valve (3) is provided with an exhaust hole (31), and the pressing sheet (541) is provided with an exhaust through hole (543) directly facing the exhaust hole (31).

4. The wine barrel according to claim 2, characterized in that: The bottle mouth portion (21) is provided with a guide hole (24) located at the lower side of the piston hole (22) and connected to the piston hole (22); the diameter of the guide hole (24) is larger than the diameter of the piston hole (22) and the guide hole (24) and the piston hole (22) are arranged concentrically; the edge of the main body portion (51) is provided with a cylindrical guide portion (511) that is slidably matched with the guide hole (24); the limiting portion (23) is an annular step surface located at the junction of the piston hole (22) and the guide hole (24) and capable of being abutted by the upper end surface of the guide portion (511).

5. The wine barrel according to claim 2, characterized in that: The main body (51) is disc-shaped, the number of the elastic sheets (53) is at least two, and the elastic sheets (53) are centrally symmetrically distributed on the raised portion (54), and an air hole (56) is formed between each elastic sheet (53) and the pressing sheet (541), and the number of the vent holes (52) is multiple, and the multiple vent holes (52) are sequentially arranged around the raised portion (54).

6. The wine barrel according to claim 4, characterized in that: The piston (4) comprises a cylindrical body (42) and a relief portion (43) located inside the body (42); the relief portion (43) is open at the lower end and has a top plate (431) at the upper end for closing the upper end of the relief portion (43); the chamber formed in the relief portion (43) is the relief space (41) mentioned above; and a sealing ring (7) is sleeved on the outer peripheral surface of the body (42) and is in contact with the inner wall of the piston hole (22).

7. The wine barrel according to claim 6, characterized in that: A gas relief notch (25) is provided at the junction of the piston hole (22) and the guide hole (24); when the elastic sheet (53) is located in the avoidance space (41) and the piston (4) moves to a position where the sealing ring (7) on the piston (4) is located at the gas relief notch (25), the pressure chamber (6) can be connected to the inner cavity of the barrel body (1) through the gas relief notch (25).

8. The wine barrel according to claim 7, characterized in that: The number of the air leakage notches (25) is multiple, and the multiple air leakage notches (25) are sequentially spaced apart along the circumference of the piston hole (22).

9. The wine barrel according to claim 6, characterized in that: A positioning hole (421) is provided on the lower end surface of the body (42), the lower end of the avoidance portion (43) extends into the positioning hole (421), and an annular groove (45) with a notch facing downward is formed between the outer wall of the avoidance portion (43) and the hole wall of the positioning hole (421), the groove bottom of the annular groove (45) forms a contact pressure surface (46), and the upper end of the elastic sheet (53) can abut against the contact pressure surface (46) after the elastic sheet (53) leaves the avoidance space (41).

10. The wine barrel according to claim 1, characterized in that: The bottle mouth (21) has a piston sleeve (27), the piston hole (22) is formed in the piston sleeve (27), the trigger plate (5) is located in the piston sleeve (27), and the main body (51) of the trigger plate (5) is slidably connected to the inner wall of the piston sleeve (27).

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