Gas pressurization apparatus of beverage container

Abstract

A gas pressurization apparatus of a beverage container, relating to the technical field of beverage containers. The beverage container comprises a barrel body (11) and a barrel cover (12). The gas pressurization apparatus comprises a gas cylinder (2), an ejector pin (3) and a pressurization main body (6) that are arranged in the barrel cover; the pressurization main body is fixed to the barrel cover and is provided with a ventilation cavity (64) that is communicated with the inner cavity of the barrel body; a sealing film (5) is provided at the mouth of the gas cylinder; the mouth end of the gas cylinder is inserted into the ventilation cavity and is slidably connected to the pressurization main body; the ejector pin is fixed in the pressurization main body; a gas cylinder switch (4) is rotatably connected to the barrel cover; the gas cylinder switch is provided with a protruding portion (411) capable of pushing the gas cylinder to move when the gas cylinder switch is rotated, so that the sealing film is punctured by the ejector pin. The rotation of the gas cylinder switch does not need to overcome air pressure, and thus, the present invention is more labor-saving and is convenient to operate.

Description

Gas pressurizing device for beverage container Technical Field

[0001] The invention belongs to the technical field of beverage containers and relates to a gas pressurizing device for a beverage container. Background Art

[0002] A beverage container is a common container for storing and dispensing beverages and alcoholic beverages. It usually has a barrel body, a barrel cover, a wine dispensing device and a pressurizing device. The pressurizing device usually releases gas from a gas cylinder into the barrel body to increase the pressure in the inner cavity of the barrel body, causing the liquid in the barrel body to flow out of the barrel body under the action of pressure.

[0003] For example, the Chinese patent document with application number 201120323219.7 (publication number: CN202265398U) discloses a beer keg, including a barrel body, a beer dispensing device and an air source device, the air source device including an air source device body, a rotary controller, a thimble, and an air storage tank, the rotary controller is sleeved in the air source device body, the thimble is arranged at the lower end of the rotary controller, the air storage tank is arranged at the lower end of the air source device body and below the thimble, and the tank mouth of the air storage tank is also provided with a sealing The sealing piece, the side of the main body of the gas source device is also provided with an air outlet, the air outlet is connected to the through-hole where the ejector pin is located, and a sealing member is provided at the opening of the air outlet connected to the outside world. The rotary controller and the main body of the gas source device are matched with a screw structure. When the rotary controller is rotated clockwise, the rotary controller drives the ejector pin to move downward, and finally breaks the sealing device of the gas tank. The liquid carbon dioxide or nitrogen is released from the gas tank and discharged along the air outlet, and at the same time pushes open the sealing member on the air outlet and enters the barrel body.

[0004] In the above scheme, there is a sealing ring between the lower end of the rotary controller and the main body of the air source device. When the rotary controller is rotated, the rotary controller moves downward along the screw thread. During the downward movement, the resistance of the sealing ring needs to be overcome. Therefore, a larger rotational force is required to overcome the resistance of the sealing ring. Rotating the rotary controller not only needs to overcome the resistance of the sealing ring, but there is also a moving gap between the rotary controller and the main body of the air source device. During the downward movement, the air in the moving gap will be discharged through the gap at the connection between the screw threads of the rotary controller and the main body of the air source. The gap at the connection between the screw threads of the rotary controller and the main body of the air source is small, and the bottom of the rotary controller is blocked by the sealing ring. Therefore, in the process of rotating the rotary controller, it is also necessary to overcome the air pressure, which is inconvenient to operate. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a gas pressurizing device for a beverage container. The technical problem to be solved by the present invention is: how to improve the convenience of operation.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A gas pressurizing device for a beverage container, the beverage container comprising a barrel body and a barrel cover, the gas pressurizing device comprising a gas cylinder, a thimble and a pressurizing body arranged in the barrel cover, the pressurizing body being fixed to the barrel cover and having a ventilation cavity communicating with the inner cavity of the barrel body, a sealing membrane being provided at the bottle mouth of the gas cylinder, characterized in that the bottle mouth end of the gas cylinder is inserted into the ventilation cavity and slidingly connected to the pressurizing body, the thimble being fixed in the pressurizing body, a gas cylinder switch being rotatably connected to the barrel cover, the gas cylinder switch having a protrusion which can push the gas cylinder to move when the gas cylinder switch is rotated so that the sealing membrane is punctured by the thimble.

[0008] During use, the gas cylinder switch is turned to push the gas cylinder to move, so that the sealing membrane at the mouth of the gas cylinder is punctured by the ejector pin to achieve exhaust. The solution of pushing the ejector pin to move in the prior art is replaced by pushing the gas cylinder, and the rotation of the rotary controller to move the rotary controller downward is replaced by the circumferential rotation of the gas cylinder switch without overcoming the air pressure, which is more labor-saving and improves the convenience of operation. The protrusion forms a cam structure to convert the rotational motion of the gas cylinder switch into linear motion of the gas cylinder, or the protrusion is connected to the gas cylinder, and the gas cylinder is driven to approach the ejector pin through the rotation of the gas cylinder switch, thereby effectively transmitting power. In addition, the gas cylinder switch acts on the gas cylinder instead of the ejector pin. Since the volume of the gas cylinder is much larger than that of the ejector pin, it is more convenient to control the gas cylinder than to control the ejector pin, which further improves the convenience.

[0009] In the aforementioned gas pressurizing device for a beverage container, the gas cylinder switch comprises a cylindrical rotating shaft. A protrusion is located on the shaft's circumferential wall and smoothly transitions with the shaft's circumferential wall along the shaft's circumference. The shaft is inserted downwardly into the barrel lid. The protrusion smoothly transitions with the shaft's circumferential wall, providing stable structural support and a stable motion trajectory.

[0010] In the aforementioned gas pressurizing device for a beverage container, the circumferential wall of the rotating shaft further comprises a clearance groove, disposed opposite the protrusion. The clearance groove allows the sealing membrane to be positioned as far away from the ejector pin as possible when the gas cylinder abuts the rotating shaft, maintaining a relatively large distance between the gas cylinder and the ejector pin, thereby minimizing contact between the ejector pin and the gas cylinder when the gas cylinder is unopened and effectively protecting the sealing membrane.

[0011] In the aforementioned gas pressurizing device for a beverage container, the barrel lid is provided with a rotating shaft mounting hole, the rotating shaft mounting hole being provided with a limiting protrusion. An annular limiting groove is circumferentially defined on the rotating shaft, the limiting groove being located near the lower end of the rotating shaft. The lower end of the rotating shaft is inserted into the rotating shaft mounting hole, and the limiting protrusion is embedded in the limiting groove. The rotating shaft is inserted into the rotating shaft mounting hole, and the limiting protrusion is embedded in the limiting groove, providing an axial limit function, preventing the gas cylinder switch from being removed while ensuring normal circumferential rotation of the gas cylinder switch, thereby ensuring the stability and safety of the device.

[0012] In the aforementioned gas pressurizing device for a beverage container, the gas cylinder switch also includes a handle, which is disposed at the upper end of the rotating shaft. The upper surface of the barrel lid is recessed downward to form an operating groove, and the handle is disposed within the operating groove. The bottom of the operating groove includes a check block, and a gap is defined between the check block and the groove wall of the operating groove. When the sealing membrane is punctured by the ejector pin, the handle becomes lodged within the gap between the check block and the groove wall of the operating groove. By forming the operating groove in the barrel lid and providing a handle on the gas cylinder switch, the user can conveniently grasp the handle for operation, providing greater convenience and intuitive operation. When the sealing membrane is punctured by the ejector pin, the handle becomes lodged within the gap between the check block and the groove wall of the operating groove, acting as a check block. This prevents the gas cylinder switch from rotating in the opposite direction after a single operation, ensuring operational stability and reliability.

[0013] In the above-mentioned gas pressurizing device for a beverage container, the ejector pin is tubular, and the side wall of the ejector pin is provided with a gas notch arranged along the axis of the ejector pin. The gas notch connects the center hole of the ejector pin with the inner cavity of the barrel body. One end of the ejector pin is sharp, and the sharp end of the ejector pin is aligned with the sealing membrane. Through the gas notch on the ejector pin, the bottle cavity of the gas cylinder and the inner cavity of the barrel body can be connected through a channel through the ejector pin. This design can achieve gas circulation and allow gas to be balanced or exchanged between the barrel body and the ejector pin. The sharp end of the ejector pin can more easily puncture the sealing membrane and reduce the torque applied when turning the gas cylinder switch.

[0014] In the above-mentioned gas pressurizing device for a beverage container, the pressurizing body is provided with a bottle mouth insertion hole and an ejector pin fixing hole communicating with the bottle mouth insertion hole, the ejector pin is arranged in the ejector pin fixing hole, the gas cylinder is slidably inserted into the bottle mouth insertion hole and is sealed with the hole wall of the bottle mouth insertion hole by a sealing ring, the gas cylinder is provided with a bottle mouth fixing piece at the bottle mouth end, and the bottle mouth fixing piece is slidably connected to the pressurizing body. First, the ejector pin is fixed inside the pressurizing body by being arranged in the ejector pin fixing hole. Such a design can ensure that the ejector pin remains stable during operation and reduce the swing or loosening of the ejector pin. Secondly, the sealing between the gas cylinder and the pressurizing body is achieved by the sealing ring, which is highly reliable and practical. Finally, the bottle mouth fixing piece is sleeved at the bottle mouth end of the gas cylinder and is slidably connected to the pressurizing body to conveniently fix the gas cylinder and improve the connection stability of the gas cylinder.

[0015] In the aforementioned gas pressurizing device for a beverage container, the pressurizing body has an annular sliding groove on its outer circumference. The bottle-mouth retainer is mounted on the pressurizing body and is circumferentially provided with a clamping jaw. The end of the clamping jaw has a block-shaped clamping block that fits into the sliding groove. The width of the sliding groove is greater than the axial width of the clamping block. The annular sliding groove on the outer circumference of the pressurizing body provides a sliding track for the bottle-mouth retainer, allowing it to slide smoothly on the pressurizing body and limiting its sliding range. The width of the sliding groove is greater than the axial width of the clamping block, ensuring that the clamping jaw has sufficient space to slide within the sliding groove and preventing the clamping jaw from being excessively restricted or stuck.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. Turning the gas cylinder switch does not require overcoming air pressure, which saves effort and improves the convenience of operation.

[0018] 2. The rotating shaft and the protrusion form a cam structure, which converts the rotational motion of the gas cylinder switch into the linear motion of the gas cylinder, thereby effectively transmitting power. The protrusion is smoothly connected to the peripheral wall of the rotating shaft, which can provide stable structural support and motion trajectory. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic structural diagram of a beverage container when the gas cylinder is in an unopened state.

[0020] FIG2 is a partial structural cross-sectional view of the top of the beverage container when the gas cylinder is not opened.

[0021] FIG3 is an enlarged view of area A in FIG2 .

[0022] FIG4 is a schematic structural diagram of the beverage container when the gas cylinder is in an open state.

[0023] FIG5 is a partial structural cross-sectional view of the top of the beverage container when the gas cylinder is in an open state.

[0024] FIG6 is an enlarged view of area B in FIG5 .

[0025] FIG7 is a schematic diagram of a portion of the structure of the present invention after the barrel cover is removed and turned upside down.

[0026] FIG8 is a schematic structural diagram of a gas cylinder switch in the present invention.

[0027] FIG9 is a bottom view of the structure of FIG8 .

[0028] FIG10 is a schematic structural diagram of the gas cylinder and the ejector pin in the present invention.

[0029] FIG11 is a schematic structural diagram of the ejector pin at another angle in the present invention.

[0030] In the figure, 11, barrel body; 111, inner cavity; 12, barrel cover; 121, operating groove; 122, check block; 123, rotating shaft mounting hole; 1231, limiting protrusion; 124, gap; 2, gas cylinder; 21, bottle mouth end; 3, ejector pin; 31, air notch; 32, center hole; 4, gas cylinder switch; 41, rotating shaft; 411, protrusion; 412, give way groove; 413, limiting groove; 42, handle; 5, sealing membrane; 6, pressurizing body; 61, sliding groove; 62, ejector pin fixing hole; 63, bottle mouth insertion hole; 64, ventilation cavity; 7, bottle mouth fixing piece; 71, clamping claw; 711, clamping block; 8, sealing piece; b1, slot width of sliding groove; b2, axial width of clamping block. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to the following embodiments.

[0032] Example 1

[0033] As shown in Figures 1 and 2, a gas pressurizing device for a beverage container includes a barrel body 11 and a barrel cover 12. The gas pressurizing device includes a gas cylinder 2, a thimble 3, and a pressurizing body 6 disposed in the barrel cover 12. The pressurizing body 6 is fixed to the barrel cover 12 and has a venting cavity 64 that communicates with the inner cavity 111 of the barrel body 11. An air inlet pipe is connected to the top of the barrel body 11, and the air inlet pipe is connected to the pressurizing body 6. The air inlet pipe connects the venting cavity 64 of the pressurizing body 6 to the inner cavity 111 of the barrel body 11. As shown in Figure 3, a sealing membrane 5 is provided at the bottle mouth of the gas cylinder 2. The thimble 3 is tubular and fixed in the pressurizing body 6. The bottle mouth end 12 of the gas cylinder 2 is inserted into the venting cavity 64 and is slidably connected to the pressurizing body 6. The pressurizing body 6 has a bottle insertion hole 63 and a thimble fixing hole 62 communicating with the bottle insertion hole 63. The thimble 3 is inserted and fixed in the thimble fixing hole 62 of the pressurizing body 6. The barrel lid 12 is rotatably connected to the gas cylinder switch 4. As shown in Figures 5 and 6, the gas cylinder switch 4 has a protrusion 411 that, when the gas cylinder switch 4 is rotated, pushes the gas cylinder 2 to move, causing the sealing membrane 5 to be punctured by the thimble 3. The bottle end 12 of the gas cylinder 2 is slidably inserted into the bottle insertion hole 63 and sealed to the wall of the bottle insertion hole 63 via a sealing ring 8. As shown in Figures 3 and 7, a bottle mouth fixing part 7 is sleeved on the bottle mouth of the gas cylinder 2, and the bottle mouth fixing part 7 is slidably connected to the pressurizing body 6. The outer periphery of the pressurizing body 6 has an annular sliding groove 61. The bottle mouth fixing part 7 is sleeved on the pressurizing body 6 and a clamping claw 71 is circumferentially provided on the bottle mouth fixing part 7. The end of the clamping claw 71 has a block-shaped clamping block 711, and the clamping block 711 is embedded in the sliding groove 61. The groove width b1 of the sliding groove 61 is greater than the axial width b2 of the clamping block 711 to ensure that the clamping claw 71 has enough space to slide in the sliding groove 61 and can avoid the clamping claw 71 from being excessively restricted or stuck.

[0034] As shown in Figures 1, 8, and 9, the gas cylinder switch 4 further comprises a cylindrical rotating shaft 41 and a handle 42 disposed at the upper end of the rotating shaft 41. A protrusion 411 is located on the peripheral wall of the rotating shaft 41 and smoothly transitions therewith along the circumference of the rotating shaft 41. As shown in Figures 1 and 5, the rotating shaft 41 is inserted downwardly into the barrel cover 12. When the rotating shaft 41 is rotated, the bottom end of the gas cylinder 2 can abut against the protrusion 411. The peripheral wall of the rotating shaft 41 further comprises a clearance groove 412, which is disposed opposite the protrusion 411. A rotating shaft mounting hole 123 is provided on the barrel cover 12, and a limiting protrusion 1231 is provided at the rotating shaft mounting hole 123. An annular limiting groove 413 is opened circumferentially on the rotating shaft 41. The limiting groove 413 is close to the lower end of the rotating shaft 41. The lower end of the rotating shaft 41 is inserted into the rotating shaft mounting hole 123 and the limiting protrusion 1231 is embedded in the limiting groove 413.

[0035] As shown in Figures 1 and 4, the upper surface of the barrel cover 12 is recessed downward to form an operating groove 121. The handle 42 is disposed within the operating groove 121. A check block 122 is provided at the bottom of the operating groove 121, and a gap 124 is defined between the check block 122 and the wall of the operating groove 121. When the sealing membrane 5 is punctured by the ejector pin 3, the handle 42 is trapped within the gap 124 between the check block 122 and the wall of the operating groove 121, thereby preventing reverse rotation. This prevents the cylinder valve 4 from rotating in the opposite direction after a single operation, thereby ensuring operational stability and reliability.

[0036] As shown in Figures 10 and 11, an axially disposed air notch 31 is provided on the sidewall of ejector pin 3, communicating with the central hole 32 of ejector pin 3. This notch 31 connects central hole 32 of ejector pin 3 to the vent cavity 64 of pressurizing body 6, and thus to the inner cavity 111 of barrel 11. One end of ejector pin 3 is sharpened, and this pointed end is aligned with sealing membrane 5 to facilitate puncturing of the sealing membrane 5.

[0037] As shown in Figures 1 to 3, when the gas cylinder 2 is unopened, the bottom end of the gas cylinder 2 enters the clearance groove 412 and contacts the bottom of the clearance groove 412, ensuring a certain distance between the sharp end of the ejector pin 3 and the sealing membrane 5. When the gas pressurizing device is in use, the gas cylinder switch 4 is rotated. The rotating shaft 41 of the gas cylinder switch 4 and the protrusion 411 form a cam structure, which converts the rotational motion of the gas cylinder switch 4 into linear motion of the gas cylinder 2. This effectively transmits power, pushing the gas cylinder 2 to move, and the sealing membrane 5 at the mouth of the gas cylinder 2 approaches the ejector pin 3 until it is punctured by the ejector pin 3. As shown in Figures 4 to 6, the cylinder cavity of the gas cylinder 2, the vent cavity 64 of the pressurizing body 6 and the inner cavity 111 of the barrel body 11 are interconnected, and finally the gas in the gas cylinder 2 is released into the inner cavity 111 of the barrel body 11 to achieve exhaust and pressurization. When the sealing film 5 is punctured by the ejector pin 3, the handle 42 is stuck in the gap 124 between the non-return block 122 and the groove wall of the operating groove 121 to play a non-return role.

[0038] The sealing membrane 5 at the mouth of the gas cylinder 2 is punctured by the ejector pin 3 to achieve exhaust. By pushing the gas cylinder 2 instead of the solution of pushing the ejector pin 3 to move in the prior art, the gas cylinder switch 4 does not need to overcome air pressure, which is more labor-saving and improves the convenience of operation. The protrusion 411 forms a cam structure, which converts the rotational motion of the gas cylinder switch 4 into the linear motion of the gas cylinder 2, thereby effectively transmitting power and facilitating operation. In addition, the gas cylinder switch 4 acts on the gas cylinder 2 instead of the ejector pin 3. Since the volume of the gas cylinder 2 is much larger than that of the ejector pin 3, it is more convenient to control the gas cylinder 2 than to control the ejector pin 3, which further improves convenience.

[0039] Example 2

[0040] The structure of the gas cylinder switch 4 differs from that of the first embodiment. It is coaxially arranged with the gas cylinder 2 and located behind the gas cylinder 2. The switch 4 is threadedly connected to the barrel lid 12. The inner end of the switch 4 has a protruding projection 411, which is rectangular or flat. The outer end of the switch 4 extends beyond the barrel lid 12 and is provided with a handwheel or handle. The bottom end of the gas cylinder 2 has a recessed groove, which is rectangular or flat, and is designed to match the projection 411. The projection 411 fits into the groove and rests against the bottom surface of the groove. Rotating the switch 4 causes the gas cylinder 2 to rotate with it. Furthermore, due to the threaded connection between the switch 4 and the barrel lid 12, the switch 4 can also move axially. Specifically, the projection 411 pushes the gas cylinder 2 toward the ejector pin 3, causing the sealing membrane 5 to approach the ejector pin 3 and be punctured by the ejector pin 3. Since there is no sealed structure between the gas cylinder switch 4 and the barrel cover 12, there is no need to overcome the air resistance and sealing ring resistance caused by the sealing structure when turning the gas cylinder switch 4, which makes the operation of the gas cylinder switch 4 labor-saving and convenient. The structure of the barrel cover 12 is adaptively adjusted, and the other structures are basically the same as those of the first embodiment.

[0041] 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.

[0042] Although the present invention frequently uses terms such as barrel body 11, barrel cover 12, operating groove 121, check block 122, rotating shaft mounting hole 123, limiting protrusion 1231, gas cylinder 2, ejector pin 3, gas notch 31, gas cylinder switch 4, rotating shaft 41, protrusion 411, clearance groove 412, limiting groove 413, handle 42, sealing membrane 5, pressurizing body 6, sliding groove 61, ejector pin fixing hole 62, bottle mouth insertion hole 63, vent cavity 64, bottle mouth fixing member 7, clamping jaw 71, and sealing member 8, the use of 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 would be contrary to the spirit of the present invention.

Claims

1. A gas pressurizing device for a beverage container, the beverage container comprising a barrel (11) and a barrel cover (12), the gas pressurizing device comprising a gas cylinder (2), a thimble (3) and a pressurizing body (6) arranged in the barrel cover (12), the pressurizing body (6) being fixed to the barrel cover (12) and having a venting cavity (64) communicating with an inner cavity (111) of the barrel (11), a sealing film (5) being provided at the bottle mouth of the gas cylinder (2), and characterized in that: The mouth end (21) of the gas cylinder (2) is inserted into the ventilation cavity (64) and is slidably connected to the pressurizing body (6); the ejector pin (3) is fixed in the pressurizing body (6); and a gas cylinder switch (4) is rotatably connected to the barrel cover (12). The gas cylinder switch (4) has a protrusion (411) that can push the gas cylinder (2) to move when the gas cylinder switch (4) is rotated, so that the sealing film (5) is punctured by the ejector pin (3).

2. A gas pressurizing device for a beverage container according to claim 1, characterized in that: The gas cylinder switch (4) has a cylindrical rotating shaft (41), the protrusion (411) is located on the peripheral wall of the rotating shaft (41) and is smoothly transitioned with the peripheral wall of the rotating shaft (41) along the circumference of the rotating shaft (41), and the rotating shaft (41) is inserted downward into the barrel cover (12).

3. A gas pressurizing device for a beverage container according to claim 2, characterized in that: The peripheral wall of the rotating shaft (41) is also provided with a clearance groove (412), and the clearance groove (412) is arranged opposite to the protruding portion (411).

4. A gas pressurizing device for a beverage container according to claim 3, characterized in that: The barrel cover (12) is provided with a rotating shaft mounting hole (123), and the rotating shaft mounting hole (123) is provided with a limiting protrusion (1231). The rotating shaft (41) is provided with an annular limiting groove (413) along the circumference, and the limiting groove (413) is close to the lower end of the rotating shaft (41). The lower end of the rotating shaft (41) is inserted into the rotating shaft mounting hole (123) and the limiting protrusion (1231) is embedded in the limiting groove (413).

5. The gas pressurizing device for a beverage container according to claim 4, characterized in that: The gas cylinder switch (4) further comprises a handle (42), the handle (42) being arranged at the upper end of the rotating shaft (41), the upper surface of the barrel cover (12) being recessed downward to form an operating groove (121), the handle (42) being arranged in the operating groove (121), the bottom of the operating groove (121) being provided with a check block (122), a gap (124) being provided between the check block (122) and the groove wall of the operating groove (121), and when the sealing film (5) is punctured by the ejector pin (3), the handle (42) is stuck in the gap (124) between the check block (122) and the groove wall of the operating groove (121).

6. A gas pressurizing device for a beverage container according to any one of claims 1 to 5, characterized in that: The ejector pin (3) is tubular, and a side wall of the ejector pin (3) is provided with an air notch (31) arranged along the axial direction of the ejector pin (3). The air notch (31) connects the central hole (32) of the ejector pin (3) with the inner cavity (111) of the barrel body (11). One end of the ejector pin (3) is sharp, and the sharp end of the ejector pin (3) is aligned with the sealing membrane (5).

7. A gas pressurizing device for a beverage container according to claim 6, characterized in that: The pressurizing body (6) is provided with a bottle mouth insertion hole (63) and a thimble fixing hole (62) communicating with the bottle mouth insertion hole (63); the thimble (3) is arranged in the thimble fixing hole (62); the gas cylinder (2) is slidably inserted into the bottle mouth insertion hole (63) and is sealed with the hole wall of the bottle mouth insertion hole (63) via a sealing ring (8); a bottle mouth fixing piece (7) is sleeved on the bottle mouth end (21) of the gas cylinder (2); and the bottle mouth fixing piece (7) is slidably connected to the pressurizing body (6).

8. The gas pressurizing device for a beverage container according to claim 7, characterized in that: The outer periphery of the pressurizing body (6) is provided with an annular sliding groove (61); the bottle mouth fixing member (7) is sleeved on the pressurizing body (6) and a clamping claw (71) is circumferentially provided on the bottle mouth fixing member (7); the end of the clamping claw (71) is provided with a block-shaped clamping block (711), and the clamping block (711) is embedded in the sliding groove (61); the groove width (b1) of the sliding groove (61) is greater than the axial width (b2) of the clamping block (711).

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