Gas pressurizing device for beverage container

Abstract

The present invention provides a gas pressurizing device for a beverage container, which belongs to the technical field of beverage equipment. It solves the problem of how to improve the service life of a gas pressurizing device. The gas pressurizing device includes a gas cylinder and a top cover. The gas cylinder is provided with a cylindrical gas nozzle for controlling the gas outlet. A piston is slidably provided in the top cover. A trigger is provided between the piston and the gas nozzle. The piston can push the gas nozzle to open through the trigger. The trigger includes an annular body, which is sleeved and fixed on the outer peripheral surface of the gas nozzle. The body has two oppositely arranged and elastic pins, and the pins have a limiting part. The limiting part abuts against the gas outlet end of the gas nozzle to limit the downward movement of the body relative to the gas nozzle. Through the above design, the trigger can reliably push and control the movement of the gas nozzle and ensure that the gas cylinder opens smoothly to discharge gas. The overall failure rate is very low, thereby greatly improving the service life of the gas pressurizing device.

Description

Technical Field

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

[0002] A beverage dispenser is a device used to dispense beverages (such as beer, coffee, soda, etc.) from a beverage container. It is commonly used in commercial settings such as bars and cafes, as well as in home settings such as parties. Users can quickly dispense beverages using a beverage dispenser. A beverage dispenser includes a beverage container, a dispenser, and a faucet. To ensure that the beverage can be dispensed from the beverage container, the beverage container is typically filled with a high-pressure gas, such as carbon dioxide, to apply pressure to the beverage within the container, allowing the beverage to be squeezed out of the container.

[0003] In the prior art, to avoid insufficient air pressure in beverage containers, a gas pressurizing device is generally installed inside the container to compensate for and pressurize the gas. For example, the solution disclosed in Figure 6 of Chinese patent document CN1125762C , the pressurizing device includes a gas cylinder, a top cover connected to the gas cylinder, and a piston slidably arranged inside the top cover. The piston divides the top cover into a closed upper chamber and a lower chamber communicating with the inner cavity of the container. When the air pressure in the lower chamber fluctuates, the piston moves up and down due to the pressure difference between the upper and lower chambers. The piston is connected to the gas nozzle of the gas cylinder by a trigger, and the piston can push the gas nozzle to open through the trigger. The lower end of the trigger is inserted into the air hole of the gas nozzle and fixedly connected to the gas nozzle, and the upper end has two pins, which are inserted into the piston. In order to prevent the pressurizing device from being mistakenly triggered due to air pressure fluctuations during storage or transportation before being installed in the container, a trigger structure is also designed on the piston of the pressurizing device. Before the pressurizing device is triggered, the pin of the trigger part is located in the sliding hole 475 of the piston. At this time, the pressurizing device is in an untriggered state, and the trigger part can slide relative to the piston. Even if the piston moves due to air pressure fluctuations, it will not cause the trigger part to move and open the air nozzle; when the pressurizing device is installed in the container, the high-pressure gas filled into the container can push the piston upward to disengage the pin from the sliding hole and get stuck on the piston, thereby triggering the pressurizing device to open and be in a triggered state; at this time, if the air pressure above and below the piston fluctuates, the piston will adaptively adjust and move and will drive the trigger part to control the action of the air nozzle.

[0004] The existing gas pressurizing devices of this type have the following defects: since the trigger member is fixed to the gas nozzle by being inserted into the air hole of the gas nozzle, on the one hand, when the piston presses the trigger member to push the gas nozzle, the trigger member is prone to bending and deformation after repeated use, which eventually makes it impossible for the piston to completely push the gas nozzle to open, resulting in a reduction in the gas output of the gas cylinder that cannot meet the requirements and is scrapped; on the other hand, the trigger member is stuck in the air hole, which will block the air hole and affect the gas output of the gas cylinder, eventually causing the gas cylinder to be scrapped before all the gas is released, thereby shortening the service life of the gas cylinder. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a gas pressurizing device for a beverage container. The technical problem to be solved by the present invention is how to increase the service life of the gas pressurizing device.

[0006] The objectives of the present invention can be achieved through the following technical solutions: A gas pressurizing device for a beverage container, comprising a gas cylinder and a top cover connected to the gas cylinder, the gas cylinder being provided with a columnar gas nozzle for controlling gas outlet, a piston being slidingly arranged inside the top cover, a triggering member being provided between the piston and the gas nozzle, the piston being able to push the gas nozzle to open through the triggering member, and being characterized in that the triggering member comprises an annular body, the body being sleeved and fixed on the outer circumferential surface of the gas nozzle, the body being provided with two oppositely arranged and elastic pins, the pins being provided with a limiting portion, the limiting portion being against the gas outlet end of the gas nozzle for limiting the downward movement of the body relative to the gas nozzle.

[0007] Different from the prior art, the present invention improves the connection structure between the trigger member and the gas nozzle of the gas pressurizing device, making the gas pressurizing device more reliable to use, thereby reducing the failure rate and achieving the purpose of increasing the service life. Specifically, the trigger is designed to have an annular body (the annular shape includes a circular ring, a square ring or a ring structure of other shapes, such as a hole in a square plate also belongs to an annular body), and the body structure is sleeved and fixed on the outer peripheral surface of the gas nozzle. This design makes the trigger firmly connected to the gas nozzle without affecting the gas outlet of the air hole on the gas nozzle, thereby avoiding the blockage of the air hole; at the same time, the trigger in the present invention is also designed with a limiting part on the pin, which abuts against the gas outlet end of the gas nozzle to limit the downward movement of the body relative to the gas nozzle. When the gas pressurizing device is triggered, the trigger will be squeezed by the piston, and it will push the gas nozzle to move through the connection between the body and the gas nozzle to open the gas cylinder to achieve gas outlet. Then, the above limiting design can ensure that the trigger will not loosen relative to the gas nozzle during operation, thereby improving the reliability of the trigger pushing the gas nozzle to open, thereby avoiding the occurrence of unstable gas outlet or insufficient gas outlet or no gas outlet due to loose trigger. Therefore, the present invention, through the fixed fit of the annular body and the gas nozzle and the combined design of the above-mentioned limiting portion, enables the trigger member to reliably push and control the movement of the gas nozzle, and ensures that the gas cylinder opens and discharges gas smoothly, and gas discharge failure is not prone to occur, so that the gas cylinder can complete the pressurization work according to the preset capacity, avoiding the situation of being scrapped due to failure in the middle of the process, thereby greatly improving the service life of the gas pressurization device.

[0008] In the aforementioned gas pressurizing device for a beverage container, the central portion of the main body includes a cylindrical sleeve portion that fits over and tightly fits the outer circumference of the gas nozzle. This sleeve portion design enhances the secure connection between the main body and the gas nozzle, further preventing loosening of the trigger member and the gas nozzle, thereby reducing malfunctions and extending the service life of the gas pressurizing device.

[0009] In the aforementioned gas pressurizing device for a beverage container, the limiting portion is plate-shaped and extends radially along the gas nozzle to above the gas outlet end of the gas nozzle. The lower side of the limiting portion abuts against the gas outlet end surface of the gas nozzle and avoids the gas hole of the gas nozzle. Through the above design, when the trigger is driven downward by the piston, the force point for pushing the gas nozzle is transferred to the top surface of the gas nozzle. This, on the one hand, makes it easier for the trigger to push the gas nozzle. On the other hand, because the force point is not at the position where the body and the gas nozzle cooperate, the body and the gas nozzle will not have a tendency to move relative to each other, thereby improving the firmness of the connection between the two. Therefore, through the above design, the trigger is less likely to malfunction during the process of pushing the gas nozzle, thereby improving the service life of the gas pressurizing device.

[0010] In the gas pressurizing device for the beverage container, the main body has two folding portions corresponding to the pins, each of which is elastic and folds upward relative to the main body. The folding portions are tilted inward relative to the vertical direction, and the lower ends of the pins are integrally formed with the folding portions and tilted outward relative to the vertical direction. The design of the folding portions makes it easier for the pins to elastically close, and the elastic deformation is not so severe, thereby making the lower ends of the pins less likely to mechanically break, which is beneficial to improving the reliability of the trigger member and thereby increasing the service life of the gas pressurizing device. On the other hand, when the trigger member is pushed downward by the piston, the design of the elastic folding portion between the lower ends of the pins and the main body can buffer and distribute the downward pressure on the pins, thereby making the pins less likely to bend and deform during use, thereby also increasing the service life of the gas pressurizing device.

[0011] In the aforementioned gas pressurizing device for a beverage container, a folded portion is formed between the folded portion and the prong, and the folded portion is capable of abutting against the outer circumference of the gas nozzle. When the prong is pressurized, the folded portion elastically deforms, closing in toward the gas nozzle and abutting against the outer circumference of the gas nozzle, creating a gripping effect. This ensures a more reliable connection between the trigger member and the gas nozzle, thereby preventing trigger member failure and improving the service life of the gas pressurizing device.

[0012] In the aforementioned gas pressurizing device for beverage containers, each pin has two parallel, spaced-apart stoppers. This design provides four points of force when the trigger pushes the gas nozzle. This distributes the downward force exerted by the piston on the trigger, making it less likely to deform during the pushing process, reducing the risk of malfunction and ultimately extending the service life of the gas pressurizing device.

[0013] In the above-mentioned gas pressurizing device of the beverage container, the middle part of the lower end of the piston has a cylindrical outer sleeve, and the outer sleeve has a cylindrical inner sleeve, and the inner sleeve has a slide arranged along the moving direction of the piston, and an annular groove is formed between the inner circumferential surface of the outer sleeve and the outer circumferential surface of the inner sleeve, and the upper end of the pin has a tile-shaped reinforcement part, and the opening of the reinforcement part faces inward; when the gas pressurizing device is in an undeployed state, the reinforcement part is located in the slide and can slide up and down along the slide relative to the piston; when the gas pressurizing device is in a triggered state, the reinforcement part is stuck in the annular groove and fixed to the piston. By designing a tile-shaped reinforcement part at the upper end of the pin, and the opening of the reinforcement part faces inward, that is, the reinforcement parts on the two pins are opposite to each other, after such design, when the gas pressurization device is in the untriggered state, the pin can slide and cooperate with the slide on the piston through the reinforcement part, and when the gas pressurization device is in the triggered state, the pin can be fixed by the reinforcement part and the annular groove. In other words, the connection and cooperation between the pin and the piston are all achieved by this part of the reinforcement part, and the above-mentioned reinforcement part adopts a tile-shaped design, which makes the structural strength here relatively large and not easy to deform, and in the process of switching to the triggered state, this tile-shaped structure will not get stuck because the outer side is an arc surface; after entering the annular groove, it can also be firmly stuck in the annular groove and the connection is firm. Therefore, through the above design, not only the trigger part is not easy to bend during use, but also not easy to loosen, thereby greatly improving the reliability of the trigger part, making the trigger part less likely to fail, and thus improving the service life of the gas pressurization device.

[0014] In the aforementioned gas pressurizing device for a beverage container, the edge of the opening of the reinforcement portion has a gradually decreasing slope from top to bottom. This design allows the reinforcement portion to more easily engage with the annular groove during the triggering process, thereby preventing switching failures and further increasing the service life of the gas pressurizing device.

[0015] In the aforementioned gas pressurizing device for a beverage container, the inner side of the pin has an arc-shaped concave surface. This design helps to improve the structural strength of the pin, making it less likely to deform during use, thereby increasing the service life of the gas pressurizing device.

[0016] In the gas pressurizing device for a beverage container, the outer side of the pin has an arc-shaped convex surface. This design helps to improve the structural strength of the pin, making it less likely to deform during use, thereby improving the service life of the gas pressurizing device.

[0017] Compared with the existing technology, the gas pressurizing device of the beverage container has the following advantages: the gas pressurizing device makes clever improvements to the structure of the trigger itself and the connection structure between the trigger and the gas nozzle, so that the trigger itself has good structural strength and is not easy to bend and deform during use; and the connection between the trigger and the gas nozzle is good and reliable and not easy to loosen, so that the trigger can reliably push and control the movement of the gas nozzle and ensure that the gas cylinder opens smoothly to release gas. The overall failure rate is very low, thereby greatly improving the service life of the gas pressurizing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the gas pressurizing device of the beverage container.

[0019] Figure 2 It is a partial cross-sectional view of the gas pressurizing device when it is in the triggered state.

[0020] Figure 3 It is a schematic diagram of the connection structure between the trigger member and the gas nozzle in the gas pressurizing device.

[0021] Figure 4 It is a structural schematic diagram of the trigger component in the gas pressurizing device.

[0022] Figure 5 It is a partial cross-sectional view of the gas pressurizing device when it is in an untriggered state.

[0023] In the figure, 1. gas cylinder; 2. top cover; 3. gas nozzle; 3a, air hole; 4. piston; 41. outer sleeve; 42. inner sleeve; 421. slide; 43. annular groove; 5. trigger; 51. main body; 511. socket part; 52. pin; 521. reinforcement part; 5211, slope; 53. limit part; 54. folding part; 55. corner part. DETAILED DESCRIPTION

[0024] 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.

[0025] Specifically, if Figure 1 As shown, the gas pressurizing device of the beverage container includes a gas cylinder 1 and a top cover 2 connected to the gas cylinder 1. Figure 2 and Figure 3As shown, a gas cylinder 1 is equipped with a cylindrical gas nozzle 3 for controlling gas outlet. A piston 4 slides within a top cover 2. The piston 4 has a downwardly protruding cylindrical outer portion 41 at its lower center. Within this outer portion 41 is a cylindrical inner sleeve 42. This inner sleeve 42 has a slideway 421 arranged along the piston 4's direction of movement. An annular groove 43 is formed between the inner circumference of the outer portion 41 and the outer circumference of the inner sleeve 42. A trigger 5 is located between the piston 4 and the gas nozzle 3. The piston 4 pushes the gas nozzle 3 to open via the trigger 5. The trigger 5 comprises an annular body 51 that fits over and secures the outer circumference of the gas nozzle 3. The body 51 has two opposing, resilient prongs 52. Each prong 52 has two parallel, spaced-apart stoppers 53. These stoppers 53 abut against the outlet end of the gas nozzle 3 to limit downward movement of the body 51 relative to the gas nozzle 3. The upper end of the pin 52 has a tile-shaped reinforcement portion 521, and the opening of the reinforcement portion 521 faces inward; Figure 2 and Figure 5 As shown, when the gas pressurizing device is in an untriggered state, the reinforcing portion 521 is located in the slideway 421 and can slide up and down along the slideway 421 relative to the piston 4; when the gas pressurizing device is in a triggered state, the reinforcing portion 521 is stuck in the annular groove 43 and fixed to the piston 4.

[0026] More specifically, in this embodiment, Figure 3 and Figure 4 As shown, the central portion of the body 51 has a cylindrical sleeve portion 511, which is sleeved onto and tightly fits the outer circumference of the air nozzle 3. The stopper 53 is plate-shaped and extends radially along the air nozzle 3 to above the outlet end of the air nozzle 3. The lower side of the stopper 53 abuts the outlet end of the air nozzle 3 while avoiding the air hole 3a of the air nozzle 3. The body 51 has two folded portions 54, corresponding to the pins 52. The folded portions 54 are elastic and fold upward relative to the body 51. The folded portions 54 are tilted inward relative to the vertical direction. The lower ends of the pins 52 are integrally formed with the folded portions 54 and tilted outward relative to the vertical direction. A corner portion 55 is formed between the folded portion 54 and the pin 52, which can abut against the outer circumference of the air nozzle 3.

[0027] In addition, as a more specific improvement to the structure of the pin 52, the opening edge of the reinforcement portion 521 has a slope 5211 that gradually descends from top to bottom, the inner side of the pin 52 has an arc-shaped inner concave surface, and the outer side of the pin 52 has an arc-shaped outer convex surface.

[0028] 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.

[0029] Although this document frequently uses terms such as gas cylinder 1, top cover 2, gas nozzle 3, gas hole 3a, piston 4, outer sleeve 41, inner sleeve 42, slideway 421, annular groove 43, trigger 5, body 51, sleeve portion 511, pin 52, reinforcement portion 521, slope 5211, limit portion 53, folded portion 54, and angled portion 55, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations would be contrary to the spirit of the present invention.

Claims

1. A gas pressurizing device for a beverage container, comprising a gas cylinder (1) and a top cover (2) connected to the gas cylinder (1), wherein the gas cylinder (1) is provided with a columnar gas nozzle (3) for controlling gas outlet, a piston (4) is slidably arranged in the top cover (2), a trigger (5) is provided between the piston (4) and the gas nozzle (3), and the piston (4) can push the gas nozzle (3) to open through the trigger (5), characterized in that: The trigger member (5) comprises an annular body (51), the body (51) being sleeved and fixed on the outer peripheral surface of the air nozzle (3), the body (51) being provided with two oppositely arranged elastic pins (52), the pins (52) being provided with a limiting portion (53), the limiting portion (53) being pressed against the air outlet end of the air nozzle (3) for limiting the downward movement of the body (51) relative to the air nozzle (3).

2. The gas pressurizing device for a beverage container according to claim 1, characterized in that: The middle portion of the body (51) has a cylindrical sleeve portion (511), and the sleeve portion (511) is sleeved on the outer peripheral surface of the air nozzle (3) and tightly matched with the outer peripheral surface of the air nozzle (3).

3. The gas pressurizing device for a beverage container according to claim 1, characterized in that: The limiting portion (53) is plate-shaped and extends radially of the air nozzle (3) to above the air outlet end of the air nozzle (3), and the lower side of the limiting portion (53) abuts against the end surface of the air outlet end of the air nozzle (3) and avoids the air hole (3a) of the air nozzle (3).

4. The gas pressurizing device for a beverage container according to claim 1, 2 or 3, characterized in that: The body (51) has two folding portions (54) corresponding to the pins (52) in a one-to-one manner. The folding portions (54) are folded upward relative to the body (51) and are elastic. The folding portions (54) are inclined inward relative to the vertical direction. The lower ends of the pins (52) are integrally formed with the folding portions (54) and are inclined outward relative to the vertical direction.

5. The gas pressurizing device for a beverage container according to claim 4, characterized in that: A folded corner portion (55) is formed between the folded portion (54) and the plug pin (52), and the folded corner portion (55) can abut against the outer peripheral surface of the air nozzle (3).

6. The gas pressurizing device for a beverage container according to claim 1, 2 or 3, characterized in that: Each of the pins (52) has two parallel and spaced limiting portions (53).

7. The gas pressurizing device for a beverage container according to claim 1, 2 or 3, characterized in that: The piston (4) has a cylindrical outer sleeve (41) at the middle of the lower end, a cylindrical inner sleeve (42) inside the outer sleeve (41), a slideway (421) arranged along the moving direction of the piston (4), an annular groove (43) is formed between the inner circumference of the outer sleeve (41) and the outer circumference of the inner sleeve (42), and the upper end of the pin (52) has a tile-shaped reinforcement portion (521), the opening of the reinforcement portion (521) facing inward; when the gas pressurizing device is in an untriggered state, the reinforcement portion (521) is located in the slideway (421) and can slide up and down along the slideway (421) relative to the piston (4); when the gas pressurizing device is in a triggered state, the reinforcement portion (521) is stuck in the annular groove (43) and fixed to the piston (4).

8. The gas pressurizing device for a beverage container according to claim 7, characterized in that: The opening edge of the reinforcement portion (521) has a slope (5211) that gradually decreases from top to bottom.

9. The gas pressurizing device for a beverage container according to claim 1, 2 or 3, characterized in that: The inner side of the pin (52) has an arc-shaped concave surface.

10. The gas pressurizing device for a beverage container according to claim 1, 2 or 3, characterized in that: The outer side of the pin (52) has an arc-shaped convex surface.

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