A filling and inflation protection method and a filling and inflation device control method

Abstract

The present invention discloses a filling and aeration protection method, which is performed using an aeration mechanism and a lifting filling mechanism, and includes the following steps: the aeration mechanism fills the filling station with inert gas at a first airflow velocity; after the container reaches the filling station, the filling mechanism descends into the container, and during the descent, the aeration mechanism switches to a second airflow velocity that is smaller than the first airflow velocity and continues to fill with nitrogen; after the filling mechanism descends into position, it fills the liquid medicine, and during the filling process, the filling mechanism ascends, and the aeration mechanism switches to a third airflow velocity that is smaller than the second airflow velocity and continues to fill with nitrogen; after the filling is completed, the filling mechanism returns to position S1, and the aeration mechanism is closed. Also disclosed is a filling and aeration device, including an aeration mechanism and a filling mechanism, wherein the aeration mechanism is arranged on the filling mechanism. The present filling and aeration protection method and filling and aeration device have the advantages of avoiding turbulence in the container, preventing splashing of the liquid medicine, improving the oxygen removal effect and the filling effect, and reducing aeration waste and the amount of residual oxygen in subsequent products.

Description

Technical Field

[0001] The present invention relates to the technical field of food and medicine packaging machinery and equipment, and in particular to a filling and inflation protection method and a control method of a filling and inflation device. Background Art

[0002] The amount of residual oxygen in pharmaceuticals has a significant impact on the shelf life of the product. Therefore, nitrogen needs to be filled into the container before and during the filling process to prevent residual oxygen in the container or to reduce the amount of residual oxygen in the container. The existing method of nitrogen filling is: when the filling needle reaches the bottom of the container, nitrogen filling is started while filling, and nitrogen filling is stopped after the filling pump finishes filling. During the existing nitrogen filling process, the nitrogen flow rate remains constant, which easily leads to nitrogen waste and poor oxygen removal effect. The residual oxygen content is high after the filling is completed, and the gas blown out of the inflation port during filling easily causes the liquid medicine to splash, affecting the filling effect. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a filling and inflation protection method and a control method for a filling and inflation device that avoids turbulence in the container, prevents splashing of the medicine liquid, improves the oxygen exhaust effect and filling effect, and reduces inflation waste and the residual oxygen content of subsequent products.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A filling and inflation protection method, which uses an inflation mechanism and a liftable filling mechanism, includes the following steps:

[0006] S1. The filling mechanism fills the filling station with inert gas at a first airflow speed, so that an air curtain is formed around the container after it enters;

[0007] S2. After the container reaches the filling station, the filling mechanism descends into the container. During the descent, the filling mechanism switches to a second airflow speed that is lower than the first airflow speed to continue inflating, so as to avoid turbulence in the container.

[0008] S3, after the filling mechanism is lowered into place, the liquid medicine is filled. During the filling process, the filling mechanism rises, and the inflation mechanism switches to a third airflow speed that is smaller than the second airflow speed to continue inflation to prevent the liquid medicine from splashing;

[0009] S4: Filling is completed, the filling mechanism returns to the position of S1, and the inflation mechanism is closed.

[0010] As a further improvement of the above technical solution:

[0011] In step S3, the filling mechanism is lowered to its proper position and stays in the container for a period of time to stabilize the airflow in the container before the liquid medicine is filled in.

[0012] The filling mechanism comprises a lifting frame and a filling needle arranged on the lifting frame, and the inflation mechanism is arranged on the filling needle.

[0013] The inflation mechanism includes an inflation sleeve and an air intake assembly. The inflation sleeve is arranged on the filling needle and is connected to the air intake assembly. The upper end of the inflation sleeve is sealed with the filling needle, and the lower end is higher than the lower end of the filling needle and is spaced from the filling needle to form an air outlet.

[0014] A plurality of the filling needles are arranged side by side, and a plurality of the inflation sleeves are provided, which are sleeved one by one with the filling needles.

[0015] The air intake assembly is arranged on a lifting frame.

[0016] Each of the inflatable sleeves is connected to the air intake assembly.

[0017] The air intake assembly includes an air intake pipe, one end of which is connected to the inflation sleeve and the other end is provided with an air source connector. The air intake pipe is provided with a pressure transmitter and a proportional regulating valve.

[0018] The air inlet pipe is also provided with a pneumatic diaphragm valve and a pressure reducing valve, and the air inlet pipe is also provided with a filter.

[0019] A method for controlling a filling and aerating device includes an aerating mechanism, a lifting filling mechanism, a controller, and a bottle conveying drive, a lifting drive, an aerating proportional valve, an aerating switch, and a filling switch connected to the controller. The method includes the following steps:

[0020] Y1. The controller gives the bottle delivery driver a movement instruction. The bottle delivery driver feeds back the current position to the controller. The controller turns on the inflation switch according to the current position of the bottle delivery driver and controls the opening of the inflation proportional valve to switch to the set value a.

[0021] Y2. After the bottle conveying drive moves to the filling station, the controller controls the lifting drive to drive the filling mechanism down into the container. During the lowering process of the lifting drive, the controller controls the opening of the inflation proportional valve to switch to the set value b which is smaller than the set value a.

[0022] Y3. After the filling mechanism moves to the target position, the controller controls the lifting drive to drive the filling mechanism to rise and controls the filling switch to open for filling. During the rising process, the controller controls the opening of the inflation proportional valve to switch to a set value c which is smaller than the set value b;

[0023] Y4, filling is completed, the controller controls the filling switch to close, the filling mechanism rises to the Y1 position, and the controller controls the lifting drive and the inflation switch to close.

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] The filling and inflation protection method of the present invention is as follows: before entering the container, the inflation mechanism fills the filling station with inert gas at a first air flow speed, so that an air curtain is formed around the container after entering the filling station, thereby realizing air curtain layer protection; when the filling mechanism descends to the container, the inflation mechanism switches to a second air flow speed smaller than the first air flow speed to continue inflation, thereby avoiding turbulence in the container, improving the oxygen exhaust effect, reducing inflation waste and the residual oxygen content of subsequent products; when the filling mechanism ascends for filling, the inflation mechanism switches to a third air flow speed smaller than the second air flow speed to continue inflation, thereby preventing liquid medicine from splashing and improving the filling effect.

[0026] The control method of the filling and inflation device of the present invention can improve the overall automation level and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of the filling and inflation protection method of the present invention, wherein Figure a is a state diagram of the inflation mechanism being located in front of the filling station; Figure b is a state diagram of the inflation mechanism when the filling station is filled with inert gas at a first airflow velocity; Figure c is a state diagram of the inflation mechanism switching to a second airflow velocity to continue inflation; Figure d is a state diagram of the filling mechanism when it is lowered into place; Figure e is a state diagram of the filling mechanism when it is filling while rising; and Figure e is a state diagram at the end of filling.

[0028] Figure 2 It is a schematic diagram of the main structure of the filling and inflation device of the filling and inflation protection method of the present invention.

[0029] Figure 3 It is a schematic cross-sectional view of the filling and inflation device of the filling and inflation protection method of the present invention.

[0030] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0031] Figure 5 It is a structural schematic diagram of the air inlet pipe of the filling and inflation device of the filling and inflation protection method of the present invention.

[0032] The numbers in the figure represent:

[0033] 1. Inflating mechanism; 11. Inflating sleeve; 12. Air inlet assembly; 121. Air inlet pipe; 122. Air source connector; 123. Pressure transmitter; 124. Proportional control valve; 125. Pneumatic diaphragm valve; 126. Pressure reducing valve; 127. Filter; 13. Air outlet; 2. Filling mechanism; 21. Lifting frame; 22. Filling needle; 3. Container. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0037] In this application, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," and the like should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] Example 1:

[0039] Figure 1 An embodiment of the filling and inflation protection method of the present invention is shown. The filling and inflation protection method of this embodiment adopts an inflation mechanism 1 and a liftable filling mechanism 2 and includes the following steps:

[0040] S1, the filling mechanism 1 fills the filling station with inert gas at a first airflow speed, so that an air curtain is formed around the container 3 after it enters. Figure 1 As shown in Figure b; in S1, the filling mechanism 2 is located at a high position in the filling station so as not to hinder the passage of the container 3;

[0041] S2, after the container 3 arrives at the filling station, the filling mechanism 2 descends into the container 3. During the descent, the inflation mechanism 1 switches to a second air flow speed that is smaller than the first air flow speed to continue inflation, so as to avoid turbulence in the container 3. Figure 1 As shown in Figure c, preferably, the inflation mechanism 1 is synchronously lowered into the container 3 along with the filling mechanism 2.

[0042] S3, filling mechanism 2 drops into place (such as Figure 1During the filling process, the filling mechanism 2 rises, and the inflation mechanism 1 switches to a third airflow speed that is smaller than the second airflow speed to continue inflation to prevent the liquid from splashing. Figure 1 As shown in Figure e; preferably, when the filling mechanism 2 rises while filling, the inflation mechanism 1 rises synchronously and rises with the liquid level, so that the inflation pressure contacted by liquid levels at different heights remains consistent.

[0043] S4, filling is completed, the filling mechanism 2 returns to the position of S1 (located at a high position in the filling station that does not hinder the passage of the container 3), and the inflation mechanism 1 is closed. Figure 1 As shown in Figure f.

[0044] In this filling and inflation protection method, the inflation mechanism 1 fills the filling station with inert gas at a first air flow velocity before entering the container 3, so that an air curtain is formed around the container 3 after entering the filling station, thereby realizing air curtain layer protection; during the process of the filling mechanism 2 descending to the container 3, the inflation mechanism 1 switches to a second air flow velocity which is smaller than the first air flow velocity and continues to inflate, thereby avoiding turbulence in the container 3, improving the oxygen exhaust effect, reducing inflation waste and the residual oxygen content of subsequent products; during the process of the filling mechanism 2 ascending for filling, the inflation mechanism 1 switches to a third air flow velocity which is smaller than the second air flow velocity and continues to inflate, thereby preventing the liquid medicine from splashing and improving the filling effect.

[0045] Furthermore, in step S3, the filling mechanism 2 is lowered into position and stays in the container 3 for a period of time (preset time) to stabilize the airflow in the container 3 before the liquid medicine is filled.

[0046] Furthermore, the inflation mechanism 1 is mounted on the filling mechanism 2. The inflation mechanism 1 is mounted on the filling mechanism 2 and can be raised and lowered synchronously with the filling mechanism 2. This satisfies the requirements of the filling and inflation protection method of Example 1 and achieves the technical effects of the filling and inflation protection method. The inflation mechanism 1 is mounted on the filling mechanism 2 to form a filling and inflation device.

[0047] During use, the inflation mechanism 1 and the filling mechanism 2 are first located above the filling station, and the filling station is filled with inert gas at a first air flow speed, so that an air curtain is formed around the container 3 after the container 3 enters; after the container 3 reaches the filling station, the inflation mechanism 1 descends into the container 3 along with the filling mechanism 2. During the descent, the inflation mechanism 1 switches to a second air flow speed that is lower than the first air flow speed to continue inflating, so as to avoid turbulence in the container 3; the filling mechanism 2 descends into place and rises while filling, and the inflation mechanism 1 rises synchronously with the filling mechanism 2 and switches to a third air flow speed that is lower than the second air flow speed to continue inflating, so as to prevent splashing of the liquid medicine. When the filling mechanism 2 rises while filling, the inflation mechanism 1 rises synchronously and rises with the liquid level, so that the inflation pressure contacted by liquid surfaces at different heights remains consistent.

[0048] Before entering the container 3, the inflation mechanism 1 fills the filling station with inert gas at a first air flow speed, so that an air curtain is formed around the container 3 after entering the filling station, thereby realizing air curtain layer protection; during the process of the filling mechanism 2 descending to the container 3, the inflation mechanism 1 switches to a second air flow speed which is smaller than the first air flow speed to continue inflation, thereby avoiding turbulence in the container 3, improving the oxygen exhaust effect, reducing inflation waste and the residual oxygen content of subsequent products; during the process of the filling mechanism 2 ascending for filling, the inflation mechanism 1 switches to a third air flow speed which is smaller than the second air flow speed to continue inflation, thereby preventing the liquid medicine from splashing and improving the filling effect.

[0049] Further, if Figure 2 and Figure 3 As shown, in this embodiment, the filling mechanism 2 includes a lifting frame 21 and a filling needle 22 mounted on the lifting frame 21, and the inflation mechanism 1 is mounted on the filling needle 22. The filling needle 22 rises and falls with the lifting frame 21 to fill the container 3, and the inflation mechanism 1 rises and falls with the filling needle 22 to inflate and protect the container 3.

[0050] Furthermore, in this embodiment, the inflation mechanism 1 includes an inflation sleeve 11 and an air inlet assembly 12. The inflation sleeve 11 is sleeved over the filling needle 22 and communicates with the air inlet assembly 12. The upper end of the inflation sleeve 11 is sealed with the filling needle 22, while the lower end is higher than the lower end of the filling needle 22 and is spaced apart from the filling needle 22 to form an air outlet 13. In this way, the filling needle 22 remains at an appropriate height above the liquid level in the container 3 or at the same level as the liquid level in the container 3 during the rising and filling process. At this time, the inflation sleeve 11 remains at an appropriate height above the liquid level in the container 3, ensuring that the inflation pressure is consistent at different liquid levels.

[0051] Furthermore, in this embodiment, a plurality of filling needles 22 are provided side by side, and a plurality of inflation sleeves 11 are provided, which are sleeved one by one with the filling needles 22. In this way, multiple containers 3 can be filled at one time, thereby improving the filling efficiency.

[0052] Furthermore, in this embodiment, the air intake assembly 12 is disposed on the lifting frame 21 and rises and falls along with the lifting frame 21 .

[0053] Furthermore, in this embodiment, each inflatable sleeve 11 is connected to an air intake assembly 12. One air intake assembly 12 supplies air to multiple inflatable sleeves 11, thereby improving the uniformity of inflation of each container 3 and reducing the cost of providing multiple air intake assemblies 12.

[0054] Further, if Figure 5As shown, in this embodiment, the air intake assembly 12 includes an air intake pipe 121. One end of the air intake pipe 121 is connected to the inflatable sleeve 11, and the other end is provided with an air source connector 122. The air intake pipe 121 is provided with a pressure transmitter 123 and a proportional control valve 124. By switching and controlling the opening of the proportional control valve 124, the three-stage inflation pressure is adjusted to achieve inflation at at least three air flow speeds: a first air flow speed, a second air flow speed, and a third air flow speed.

[0055] Furthermore, in this embodiment, a pneumatic diaphragm valve 125 and a pressure reducing valve 126 are further provided on the air inlet pipe 121 .

[0056] Furthermore, in this embodiment, a filter 127 is provided on the air intake pipe 121 .

[0057] Example 2:

[0058] Figures 2 to 5 An embodiment of the filling and inflation device of the present invention is shown, comprising an inflation mechanism 1 and a filling mechanism 2, with the inflation mechanism 1 being mounted on the filling mechanism 2. The inflation mechanism 1 is mounted on the filling mechanism 2 and can be raised and lowered synchronously with the filling mechanism 2. This device can meet the requirements of the filling and inflation protection method of Example 1 and achieve the technical effects of the filling and inflation protection method.

[0059] During use, the inflation mechanism 1 and the filling mechanism 2 are first located above the filling station, and the filling station is filled with inert gas at a first air flow speed, so that an air curtain is formed around the container 3 after the container 3 enters; after the container 3 reaches the filling station, the inflation mechanism 1 descends into the container 3 along with the filling mechanism 2. During the descent, the inflation mechanism 1 switches to a second air flow speed that is lower than the first air flow speed to continue inflating, so as to avoid turbulence in the container 3; the filling mechanism 2 descends into place and rises while filling, and the inflation mechanism 1 rises synchronously with the filling mechanism 2 and switches to a third air flow speed that is lower than the second air flow speed to continue inflating, so as to prevent splashing of the liquid medicine. When the filling mechanism 2 rises while filling, the inflation mechanism 1 rises synchronously and rises with the liquid level, so that the inflation pressure contacted by liquid surfaces at different heights remains consistent.

[0060] Before entering the container 3, the inflation mechanism 1 fills the filling station with inert gas at a first air flow speed, so that an air curtain is formed around the container 3 after entering the filling station, thereby realizing air curtain layer protection; during the process of the filling mechanism 2 descending to the container 3, the inflation mechanism 1 switches to a second air flow speed which is smaller than the first air flow speed to continue inflation, thereby avoiding turbulence in the container 3, improving the oxygen exhaust effect, reducing inflation waste and the residual oxygen content of subsequent products; during the process of the filling mechanism 2 ascending for filling, the inflation mechanism 1 switches to a third air flow speed which is smaller than the second air flow speed to continue inflation, thereby preventing the liquid medicine from splashing and improving the filling effect.

[0061] Further, if Figure 2 and Figure 3As shown, in this embodiment, the filling mechanism 2 includes a lifting frame 21 and a filling needle 22 mounted on the lifting frame 21, and the inflation mechanism 1 is mounted on the filling needle 22. The filling needle 22 rises and falls with the lifting frame 21 to fill the container 3, and the inflation mechanism 1 rises and falls with the filling needle 22 to inflate and protect the container 3.

[0062] Furthermore, in this embodiment, the inflation mechanism 1 includes an inflation sleeve 11 and an air inlet assembly 12. The inflation sleeve 11 is sleeved over the filling needle 22 and communicates with the air inlet assembly 12. The upper end of the inflation sleeve 11 is sealed with the filling needle 22, while the lower end is higher than the lower end of the filling needle 22 and is spaced apart from the filling needle 22 to form an air outlet 13. In this way, the filling needle 22 remains at an appropriate height above the liquid level in the container 3 or at the same level as the liquid level in the container 3 during the rising and filling process. At this time, the inflation sleeve 11 remains at an appropriate height above the liquid level in the container 3, ensuring that the inflation pressure is consistent at different liquid levels.

[0063] Furthermore, in this embodiment, a plurality of filling needles 22 are provided side by side, and a plurality of inflation sleeves 11 are provided, which are sleeved one by one with the filling needles 22. In this way, multiple containers 3 can be filled at one time, thereby improving the filling efficiency.

[0064] Furthermore, in this embodiment, the air intake assembly 12 is disposed on the lifting frame 21 and rises and falls along with the lifting frame 21 .

[0065] Furthermore, in this embodiment, each inflatable sleeve 11 is connected to an air intake assembly 12. One air intake assembly 12 supplies air to multiple inflatable sleeves 11, thereby improving the uniformity of inflation of each container 3 and reducing the cost of providing multiple air intake assemblies 12.

[0066] Further, if Figure 5 As shown, in this embodiment, the air intake assembly 12 includes an air intake pipe 121. One end of the air intake pipe 121 is connected to the inflatable sleeve 11, and the other end is provided with an air source connector 122. The air intake pipe 121 is provided with a pressure transmitter 123 and a proportional control valve 124. By switching and controlling the opening of the proportional control valve 124, the three-stage inflation pressure is adjusted to achieve inflation at at least three air flow speeds: a first air flow speed, a second air flow speed, and a third air flow speed.

[0067] Furthermore, in this embodiment, a pneumatic diaphragm valve 125 and a pressure reducing valve 126 are further provided on the air inlet pipe 121 .

[0068] Furthermore, in this embodiment, a filter 127 is provided on the air intake pipe 121 .

[0069] Example 3:

[0070] A method for controlling a filling and aerating device includes an aerating mechanism 1, a lifting filling mechanism 2, a controller, and a bottle conveying drive, a lifting drive, an aerating proportional valve, an aerating switch, and a filling switch connected to the controller. The method includes the following steps:

[0071] Y1, the controller sends a movement instruction to the bottle conveying drive, and the bottle conveying drive feeds back the current position to the controller. The controller turns on the inflation switch according to the current position of the bottle conveying drive and controls the opening of the inflation proportional valve to switch to the set value a. In Y1, the filling mechanism 2 is located at a high position in the filling station where it does not obstruct the passage of the container 3.

[0072] Y2. After the bottle conveying drive moves to the filling station, the controller controls the lifting drive to drive the filling mechanism 2 down into the container 3. During the lowering process of the lifting drive, the controller controls the opening of the inflation proportional valve to switch to a set value b which is smaller than the set value a.

[0073] Y3. After the filling mechanism 2 moves to the target position, the controller controls the lifting drive to drive the filling mechanism 2 to rise and controls the filling switch to open for filling. During the rising process, the controller controls the opening of the inflation proportional valve to switch to a set value c which is smaller than the set value b;

[0074] Y4, filling is completed, the controller controls the filling switch to be closed, the filling mechanism 2 rises to the position Y1 (located at a high position in the filling station that does not hinder the passage of the container 3), and the controller controls the lifting drive and the inflation switch to be closed.

[0075] The control method of the filling and inflation device can improve the overall automation level and production efficiency.

[0076] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A filling and inflation protection method, which is carried out using an inflation mechanism (1) and a liftable filling mechanism (2), and is characterized by: The steps include: S1, the filling mechanism (1) fills the filling station with inert gas at a first airflow velocity, so that an air curtain is formed around the container (3) after the container (3) enters; S2. After the container (3) reaches the filling station, the filling mechanism (2) descends into the container (3). During the descent, the filling mechanism (1) switches to a second airflow velocity that is lower than the first airflow velocity to continue inflation, thereby avoiding turbulence in the container (3); S3, the filling mechanism (2) is lowered into position and then filled with liquid medicine. During the filling process, the filling mechanism (2) rises, and the inflation mechanism (1) switches to a third air flow speed that is lower than the second air flow speed and continues to inflate, so as to prevent the liquid medicine from splashing; S4, filling is completed, the filling mechanism (2) returns to the position of S1, and the inflation mechanism (1) is closed.

2. The filling and inflation protection method according to claim 1, characterized in that: In step S3, the filling mechanism (2) is lowered into position and stays in the container (3) for a period of time to stabilize the airflow in the container (3) before the liquid medicine is filled.

3. The filling and inflation protection method according to claim 2, characterized in that: The filling mechanism (2) comprises a lifting frame (21) and a filling needle (22) arranged on the lifting frame (21), and the inflation mechanism (1) is arranged on the filling needle (22).

4. The filling and inflation protection method according to claim 3, characterized in that: The inflation mechanism (1) comprises an inflation sleeve (11) and an air intake assembly (12); the inflation sleeve (11) is sleeved on the filling needle (22) and communicates with the air intake assembly (12); the upper end of the inflation sleeve (11) is sealedly connected to the filling needle (22), and the lower end of the inflation sleeve (11) is higher than the lower end of the filling needle (22) and is spaced apart from the filling needle (22) to form an air outlet (13).

5. The filling and inflation protection method according to claim 4, characterized in that: A plurality of the filling needles (22) are arranged side by side, and a plurality of the inflation sleeves (11) are provided, which are sleeved in a one-to-one correspondence with the filling needles (22).

6. The filling and inflation protection method according to claim 5, characterized in that: The air intake assembly (12) is arranged on a lifting frame (21).

7. The filling and inflation protection method according to claim 5, characterized in that: Each of the inflatable sleeves (11) is connected to an air intake assembly (12).

8. The filling and inflation protection method according to any one of claims 4 to 7, characterized in that: The air intake assembly (12) comprises an air intake pipe (121), one end of the air intake pipe (121) is in communication with the inflation sleeve (11), and the other end is provided with an air source connector (122), and the air intake pipe (121) is provided with a pressure transmitter (123) and a proportional regulating valve (124).

9. The filling and inflation protection method according to claim 8, characterized in that: The air inlet pipe (121) is further provided with a pneumatic diaphragm valve (125) and a pressure reducing valve (126), and the air inlet pipe (121) is further provided with a filter (127).

10. A method for controlling a filling and inflation device, characterized in that: The invention comprises an inflation mechanism (1), a lifting filling mechanism (2), a controller, and a bottle conveying drive, a lifting drive, an inflation proportional valve, an inflation switch, and a filling switch connected to the controller. The control method comprises the following steps: Y1. The controller gives the bottle delivery driver a movement instruction. The bottle delivery driver feeds back the current position to the controller. The controller turns on the inflation switch according to the current position of the bottle delivery driver and controls the opening of the inflation proportional valve to switch to the set value a. Y2. After the bottle conveying drive moves to the filling station, the controller controls the lifting drive to drive the filling mechanism (2) to descend into the container (3). During the descending process of the lifting drive, the controller controls the opening of the inflation proportional valve to switch to a set value b that is smaller than the set value a. Y3. After the filling mechanism (2) moves to the target position, the controller controls the lifting drive to drive the filling mechanism (2) to rise and controls the filling switch to open for filling. During the rising process, the controller controls the opening of the inflation proportional valve to switch to a set value c that is smaller than the set value b. Y4, filling is completed, the controller controls the filling switch to be closed, the filling mechanism (2) rises to the position Y1, and the controller controls the lifting drive and the inflation switch to be closed.

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