Pressurized filling equipment

Abstract

The utility model belongs to the technical field of filling equipment, and particularly relates to under-pressure filling equipment which comprises an outer connecting piece and an inner connecting piece, the inner connecting piece is composed of a threaded section and a straight pipe which are integrally formed up and down, the lower side of the outer connecting piece is of a conical structure with the wide upper portion and the narrow lower portion, and a through hole in threaded connection with the threaded section is formed in the outer connecting piece. A material spraying opening is formed in the threaded section and the inner side of the straight pipe in a penetrating mode, an air inlet groove is formed between the outer side face of the straight pipe and the inner wall of the outer connecting piece and communicated with an air outlet formed in the side face of the outer connecting piece, and the inner diameter of the air inlet groove is gradually increased from the direction away from the air outlet to the direction close to the air outlet, namely, the section of the bottom of the air inlet groove is round. And the top section is elliptical. The gradually-increased inner diameter design of the air inlet groove can avoid unsmooth exhaust in the exhaust confluence process, so that gas can smoothly flow to the exhaust port, the gas is uniformly exhausted through the exhaust port, and liquid in the exhausted gas is prevented from polluting the container and the environment around the container.

Description

Technical Field

[0001] This utility model belongs to the field of filling equipment technology, specifically relating to a pressurized filling device. Background Technology

[0002] In the field of liquid filling technology, pressurized filling is a common filling method, particularly suitable for liquid products containing bubbles or requiring a certain pressure, such as fruit juice, beer, and carbonated beverages. Pressurized filling not only ensures the hygiene and safety of the product during the filling process but also effectively prevents spoilage and oxidation during transportation and storage. However, traditional pressurized filling equipment has many shortcomings in its venting design, which to some extent affect filling efficiency, product quality, and the cleanliness of the production environment.

[0003] Traditional pressurized filling equipment typically relies on simple vents or valves to expel gas. However, this design often leads to poor venting during the filling process, hindering the smooth filling of the liquid. Because of the internal pressure of the liquid during pressurized filling, when the liquid enters the container through the filling head, it compresses the air inside the container, forming air bubbles. If these bubbles cannot be expelled in time, they will accumulate inside the container, causing uneven filling or even liquid overflow, affecting the product's appearance and packaging quality.

[0004] Furthermore, traditional venting designs can easily lead to liquid being carried away by the exhaust gas. During pressurized filling, due to the high-speed flow of the liquid and the internal pressure, some liquid will be carried away by the gas and discharged together. This carried liquid can not only contaminate the filling equipment, but may also drip onto containers or the production line, posing a threat to the hygiene and safety of the product and the cleanliness of the production environment. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a pressurized filling device that solves the shortcomings of traditional filling equipment in its exhaust design, which easily leads to poor exhaust and affects filling efficiency and quality. Furthermore, the exhaust gas may carry liquid, causing pollution to the container and the surrounding environment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressurized filling device, comprising an outer connector and an inner connector. The inner connector is composed of an integrally formed threaded section and a straight tube. The lower side of the outer connector has a conical structure that is wider at the top and narrower at the bottom. The outer connector has a through hole for threaded connection of the threaded section. A spray nozzle is formed through the inner side of the threaded section and the straight tube. An air inlet groove is formed between the outer side of the straight tube and the inner wall of the outer connector. The air inlet groove is connected to an exhaust port located on the side of the outer connector. The inner diameter of the air inlet groove gradually increases from the direction away from the exhaust port to the direction closer to the exhaust port, that is, the bottom cross-section of the air inlet groove is circular and the top cross-section is elliptical.

[0007] The beneficial effects of this utility model are as follows: the gradually increasing inner diameter design of the air inlet groove can avoid poor exhaust flow during the exhaust flow process, allowing the gas to flow smoothly to the exhaust port and be discharged uniformly through the exhaust port, thus avoiding liquid pollution of the container and the surrounding environment in the discharged gas.

[0008] To ensure that both the external and internal connectors can be smoothly inserted into the bottle opening of the dispensing bottle;

[0009] As a further improvement to the above technical solution: the bottom of the outer side of the straight pipe is formed with a tapered surface structure that is flush with the outer surface of the external connector.

[0010] The beneficial effects of this improvement are: the conical structure design of the outer and inner connectors allows them to be smoothly inserted into the bottle opening.

[0011] To facilitate the positioning and installation of the relative positions of the external and internal connectors;

[0012] As a further improvement to the above technical solution: the outer diameter of the threaded section is not greater than the diameter of the straight pipe.

[0013] The beneficial effects of this improvement are: as the threaded section and the threaded structure of the external connector are tightened, the top of the straight pipe can be placed against the inner top surface of the external connector, making it convenient to position and install the relative positions of the external connector and the internal connector.

[0014] To ensure that both the external and internal connectors can be smoothly inserted into the bottle opening of the dispensing bottle;

[0015] As a further improvement to the above technical solution: the inner wall of the air intake groove is connected with multiple baffles, the inner side of the baffles slides against the outer side of the straight pipe, and the slope of the outer side of the baffles is the same as the slope of the conical structure on the lower side of the outer connector.

[0016] The beneficial effects of this improvement are: the baffle can act as a guide, filling the connection between the outer connector and the inner connector, and preventing the air inlet groove from affecting the connection between the outer connector, the inner connector and the bottle mouth.

[0017] To improve the quality of filling;

[0018] As a further improvement to the above technical solution: the bottom end of the inner connector is formed with a guide protrusion coaxial with the spray nozzle, the guide protrusion is a ring-shaped structure, and the inner diameter of the guide protrusion is the same as the diameter of the spray nozzle.

[0019] The beneficial effect of this improvement is that the guide bump can effectively prevent the liquid ejected from the nozzle from overflowing onto the bottom surface of the inner connector.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the external connector in this utility model;

[0024] Figure 4 This is a schematic diagram of the internal connecting component in this utility model;

[0025] In the diagram: 1. External connector; 11. Exhaust port; 12. Air inlet slot; 13. Baffle; 2. Internal connector; 21. Threaded section; 22. Straight pipe; 23. Spray nozzle; 24. Guide protrusion. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0027] Example 1:

[0028] like Figure 1As shown in Figure 4: A pressurized filling device includes an outer connector 1 and an inner connector 2. The inner connector 2 is composed of an integrally formed threaded section 21 and a straight pipe 22. The lower side of the outer connector 1 has a conical structure that is wider at the top and narrower at the bottom. The outer connector 1 has a through hole for threaded connection to the threaded section 21. A spray nozzle 23 is formed through the inner side of the threaded section 21 and the straight pipe 22. An air inlet groove 12 is formed between the outer side of the straight pipe 22 and the inner wall of the outer connector 1. The air inlet groove 12 is connected to an exhaust port 1 located on the side of the outer connector 1. 1. The inner diameter of the air inlet groove 12 gradually increases from the direction away from the exhaust port 11 to the direction closer to the exhaust port 11. That is, the bottom cross-section of the air inlet groove 12 is circular and the top cross-section is elliptical. The gradually increasing inner diameter design of the air inlet groove 12 can avoid the exhaust flow obstruction during the exhaust flow process, so that the gas can flow smoothly to the exhaust port 11 and be discharged uniformly through the exhaust port 11, avoiding the liquid in the discharged gas from contaminating the container and the environment around the container. The bottom of the outer side of the straight pipe 22 is formed with a conical surface structure that is flush with the outer surface of the outer connector 1. The tapered structure design of connector 1 and inner connector 2 allows for smooth insertion of outer connector 1 and inner connector 2 into the bottle neck. The outer diameter of the threaded section 21 is no greater than the diameter of the straight tube 22. As the threaded section 21 and the threaded structure of the outer connector 1 are tightened, the top of the straight tube 22 can rest against the inner top surface of the outer connector 1, facilitating the positioning and installation of the relative positions of the outer connector 1 and inner connector 2. Multiple baffles 13 are connected to the inner wall of the air inlet groove 12. The inner side of the baffle 13 slides against the outer side of the straight tube 22. The slope is the same as the slope of the conical structure on the lower side of the outer connector 1. The baffle 13 can play a guiding role, filling the connection between the outer connector 1 and the inner connector 2, and preventing the air inlet groove 12 from affecting the connection between the outer connector 1, the inner connector 2 and the bottle mouth. The bottom end of the inner connector 2 is formed with a flow guide protrusion 24 coaxial with the spray nozzle 23. The flow guide protrusion 24 is a ring structure, and the inner diameter of the flow guide protrusion 24 is the same as the diameter of the spray nozzle 23. The flow guide protrusion 24 can effectively prevent the liquid sprayed from the port of the spray nozzle 23 from overflowing to the bottom surface of the inner connector 2.

[0029] The working principle of this technical solution is as follows: Connect the inner connector 2 to the pressurized material pipeline. After the bottle is positioned and conveyed to the vertical position below the inner connector 2, the filling machine starts to work. First, the filling machine drives the inner connector 2 to move downward, so that the bottom end of the spray nozzle 23 is inserted into the inside of the bottle mouth, and the conical surface on the lower side of the inner connector 2 is against the inner wall of the bottle mouth, so that the bottom end of the air inlet groove 12 is located inside the bottle mouth. When filling begins, the extraction pump draws the material from the storage tank and transports it to the inner connector 2 through the pipeline. The material enters the bottle through the spray nozzle 23 until the set filling volume is reached. The gas generated during the filling process enters the air inlet groove 12 and is then sprayed out in a specified direction through the exhaust port 11, or the exhaust gas is collected in a hose outside the exhaust port 11 for more efficient treatment.

[0030] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A pressurized filling apparatus, characterized by: The utility model relates to a kind of outer connecting piece (1) and inner connecting piece (2) comprising, the inner connecting piece (2) is composed of upper and lower integrally formed thread segment (21) and straight pipe (22), the lower side of the outer connecting piece (1) is wide in the upper and narrow conical structure, the outer connecting piece (1) is opened with the through hole of thread connection thread segment (21), the inside of the thread segment (21), straight pipe (22) is opened with the material injection port (23) through, the outer side of the straight pipe (22) and the inner wall between outer connecting piece (1) are formed with air inlet groove (12), the air inlet groove (12) is communicated and arranged in the exhaust port (11) of outer connecting piece (1) side, the inner diameter of the air inlet groove (12) is gradually increased from the direction of far from exhaust port (11) to the direction of close to exhaust port (11), namely the bottom section of the air inlet groove (12) is circular, top section is oval.

2. A pressurized filling apparatus according to claim 1, characterized in that: The bottom of the outer side of the straight pipe (22) is formed with the conical surface structure flush with the outer surface of outer connecting piece (1).

3. A pressurized filling apparatus according to claim 1, characterized in that: The outer diameter of the thread segment (21) is not greater than the diameter of straight pipe (22).

4. A pressurized filling apparatus according to claim 1, characterized in that: The inner wall of the air inlet groove (12) is connected with multiple baffles (13), the inner side of the baffle (13) is slidably attached to the outer side of the straight pipe (22), and the slope of the outer side of the baffle (13) is the same as the slope of the conical structure of the lower side of the outer connecting piece (1).

5. A pressurized filling apparatus according to claim 1, characterized in that: The bottom end of the inner connecting piece (2) is formed with the flow guide lug (24) coaxial with the material injection port (23), the flow guide lug (24) is a circular ring structure, and the inner diameter of the flow guide lug (24) is the same as the diameter of the material injection port (23).

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