Container disinfection device

Abstract

The invention discloses a container disinfection device which comprises a rotating table, a mounting convex ring arranged on the periphery of the outer side of the rotating table, a lifting assembly and a fixed seat arranged on the outer side of the circumference of the mounting convex ring in an abutting mode. A first air duct and a second air duct are arranged in the fixed seat; the lifting assembly comprises a lifting pipe penetrating through the mounting convex ring in a lifting manner, a lifting shaft penetrating through the lifting pipe in a lifting manner, a drainage pipe connected with the lifting shaft, a first cavity formed in the lifting shaft, and a second cavity annularly arranged between the lifting shaft and the lifting pipe; when the lifting assembly is located at the working position, the lifting pipe and the lifting shaft descend to the lower stopping position, the lifting pipe is arranged at the opening end of the corresponding container in a sealed mode, the drainage pipe is inserted into the corresponding container, and the second cavity is communicated with the container. When the rotating table rotates to the lifting assembly and the fixing base are aligned in the radial direction of the rotating table, the first cavity communicates with the first air channel, and the second cavity communicates with the second air channel. The container disinfection device can effectively eliminate the coverage sterilization blind area of the disinfectant.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blowing, and in particular to a container sterilizing device. Background Art

[0002] As the beverage industry places increasingly higher demands on food safety, more and more attention is paid to contamination control during beverage packaging, especially for dairy products. Contamination of packaging containers will directly affect product quality.

[0003] In the prior art, dry sterilization devices are generally used to sterilize containers (referring to bottle blanks or formed bottles), but there are some problems in use:

[0004] Since the molded bottle has an irregular shape and the interior of the preform is also irregular, there is a problem of uneven coverage by jetting or spraying;

[0005] There is also the problem of leakage of disinfectant during the spraying or jetting process;

[0006] For the bottle blank, the inside is actually a blind hole with a small diameter and a certain length. It is difficult to ensure that the vapor disinfectant can be sprayed from one end to the other end, and there is a sterilization blind area for the disinfectant.

[0007] Since the amount of steam required for a single preform is very small, it will be affected by the stability of the jet pressure and liquid supply flow, resulting in unstable jet quality. Summary of the invention

[0008] The object of the present invention is to provide a container disinfection device, which can fully absorb the disinfection gas outside the container into the container through negative pressure drainage and diffuse it on the entire inner surface of the container, so that the disinfectant can evenly cover the entire inner surface of the container, and can effectively eliminate the blind spots covered by the disinfectant; the disinfection gas has a higher stability of absorption, the disinfection effectiveness is higher, and the disinfection is more thorough.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] A container sterilizing device, used for replacing the initial gas in the inner space of the container with the sterilizing gas in the outer space of the container, the sterilizing gas is steam and / or mist, the container has at least one open end, the container sterilizing device comprises a rotating table for conveying the container in a circumferential direction, a mounting convex ring radially annularly arranged on the outer peripheral portion of the rotating table, a plurality of lifting components arranged on the mounting convex ring at intervals in the circumferential direction, and a fixing seat abutting against the outer circumference of the mounting convex ring; a first air duct for connecting to a fan and a second air duct for connecting to a first body are provided in the fixing seat, and the first body is used to provide the sterilizing gas to the container;

[0011] The lifting assembly includes a lifting tube that can be lifted and lowered through the mounting convex ring, a lifting shaft that can be lifted and lowered through the lifting tube, a drainage tube whose upper end is connected to the lower end of the lifting shaft, a first cavity that is opened in the lifting shaft and communicates with the drainage tube, and a second cavity that is annularly arranged between the lifting shaft and the lifting tube;

[0012] The lifting assembly has a working position. When the lifting assembly is in the working position:

[0013] The lifting tube and the lifting shaft are respectively lowered to the lower stop position, the lifting tube is sealed on the open end of the corresponding container, the drainage tube is inserted in the corresponding container, and the second cavity is connected with the container; when the rotating table is rotated until the lifting assembly and the fixing seat are aligned along their radial direction, the first cavity is connected with the first air duct through the lifting shaft, the lifting tube and the mounting convex ring, and the second cavity is connected with the second air duct through the lifting tube and the mounting convex ring.

[0014] Preferably, the lifting shaft is provided with an exhaust port connected to the first cavity, the exhaust port is located above the second cavity, and the lifting shaft includes an isolation section arranged between the exhaust port and the second cavity, and the outer diameter of the isolation section is equal to the inner diameter of the lifting tube.

[0015] More preferably, the lifting shaft further comprises an air guiding section located below the isolation section, the outer diameter of the air guiding section is smaller than the inner diameter of the lifting tube, and the second cavity is arranged in an annular manner between the air guiding section and the lifting tube.

[0016] Preferably, the lifting assembly further comprises a first upper opening and a second upper opening respectively opened on the lifting tube and the mounting convex ring, and a first lower opening and a second lower opening respectively opened on the lifting tube and the mounting convex ring;

[0017] After the lifting assembly is in the working position and the rotating platform rotates until the lifting assembly is aligned with the fixing seat along their radial direction:

[0018] The first cavity is in communication with the first air duct through the first upper opening and the second upper opening, and the second cavity is in communication with the second air duct through the first lower opening and the second lower opening.

[0019] More preferably, a side surface of the fixing seat for abutting against the mounting convex ring is an arc surface, and a first groove for mounting a first seal is provided on the arc surface, and the first groove is provided between the first air outlet of the first air duct and the second air outlet of the second air duct.

[0020] Preferably, a first convex ring is radially annularly provided on the rotating table, the lifting shaft extends upward from the lifting tube and is inserted into the first convex ring, and the container disinfection device also includes a first connecting seat connected to the lifting shaft and located between the first convex ring and the lifting tube, a rotor rotatable around its own axial line on the first connecting seat, a cam for driving the first connecting seat to rise through the rotor, and a first elastic member disposed between the first convex ring and the first connecting seat, the first elastic member being used to provide an elastic restoring force for driving the first connecting seat to move downward.

[0021] More preferably, a second convex ring is radially annularly provided on the rotating table, and the container sterilizing device further comprises a second connecting seat connected to the lifting tube and located below the second convex ring, a screw having a lower end connected to the second connecting seat and an upper end located above the first connecting seat, a limiting nut provided at the upper end of the screw, and a second elastic member abutting between the second convex ring and the second connecting seat;

[0022] The first connecting seat is used to drive the second connecting seat to rise synchronously through the limiting nut after rising a first distance, and the second elastic member is used to provide an elastic restoring force to drive the second connecting seat to move downward.

[0023] More preferably, the screw rod is inserted into the first connecting seat.

[0024] More preferably, the first convex ring, the first connecting seat, the second convex ring, the second connecting seat, and the mounting convex ring are sequentially arranged at intervals from top to bottom.

[0025] Preferably, the first body is used to store disinfectant, and the container disinfection device further comprises an ultrasonic atomization generator and / or a heater disposed in the first body.

[0026] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the container disinfection device of the present invention can fully absorb the disinfection gas outside the container into the container through negative pressure drainage and diffuse it on the entire inner surface of the container, so that the disinfectant can evenly cover the entire inner surface of the container, which can effectively eliminate the blind area of ​​disinfection coverage; the inhalation stability of the disinfection gas is high, the disinfection effectiveness is high, the disinfection is more thorough, and the problem of disinfectant leakage can be avoided. For the bottle blank, it can also avoid the problem of insufficient gasification affecting the bottle molding quality due to excessive accumulation of disinfectant on the surface of the bottle blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 A front view of a container sterilizing device according to a specific embodiment of the present invention (the first main body and the fixing seat are omitted);

[0028] Attached Figure 2 is a top view of a container sterilizing device according to a specific embodiment of the present invention (the first body is omitted);

[0029] Attached Figure 3 A partial cross-sectional view of a container sterilizing device according to a specific embodiment of the present invention;

[0030] Attached Figure 4 For attachment Figure 3 A magnified schematic diagram of center A.

[0031] Among them: 1. Bottle blank;

[0032] 2. Rotating table; 21. Mounting convex ring; 211. Second upper opening; 212. Second lower opening; 22. First convex ring; 23. Second convex ring;

[0033] 3. Lifting assembly; 301. Lifting tube; 3011. First upper opening; 3012. First lower opening; 302. Lifting shaft; 3021. Air extraction port; 3022. Isolation section; 3023. Air guide section; 303. Drainage tube; 304. First cavity; 305. Second cavity; 306. First connecting seat; 307. Rotor; 308. First elastic member; 309. Second connecting seat; 310. Screw; 311. Limiting nut; 312. Second elastic member;

[0034] 4. fixing seat; 41. first air duct; 411. first air outlet; 42. second air duct; 421. second air outlet; 43. first sealing member; 44. first groove;

[0035] 5. Fan; 6. First main body; 7. Cam; 8. Heater; 9. First heating unit; 10. Second heating unit. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described below in conjunction with specific embodiments and drawings.

[0037] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying 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 the embodiments of the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0041] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0043] This embodiment provides a container sterilization device, wherein the container has at least one open end, and in this embodiment, the container is a bottle blank 1. The bottle blank 1 is tubular in shape as a whole, one end of the tubular bottle blank 1 is closed, and the other end is the same shape as the neck of the bottle after molding, which is an open end. The container sterilization device is used to replace the initial gas in the inner space of the container with the sterilizing gas in the outer space of the container, and the sterilizing gas is in the form of steam and / or mist.

[0044] In other embodiments, the container may be an irregular bottle blank, a regular bottle body, or an irregular bottle body.

[0045] See also Figure 1-3 As shown, the container sterilizing device comprises a frame (not shown in the figure), a rotating table 2 which is rotatably arranged on the frame around its own axis and is used to convey the bottle blank 1 in the circumferential direction, a mounting convex ring 21 which is radially annularly arranged on the outer peripheral portion of the rotating table 2, a plurality of lifting components 3 which are arranged on the mounting convex ring 21 at intervals in the circumferential direction, and a fixing seat 4 which is arranged against the outer peripheral side of the mounting convex ring 21.

[0046] Among them, multiple bottle blanks 1 are arranged at intervals along the circumferential direction under the rotating table 2, and multiple lifting assemblies 3 are arranged one by one directly above the multiple bottle blanks 1. A cam 7 is also provided on the frame. While the lifting assemblies 3 rotate with the rotating table 2, the lifting assemblies 3 can also move upward under the drive of the cam 7.

[0047] The fixing seat 4 is disposed against one side of the mounting protruding ring 21, and one side surface of the fixing seat 4 for abutting against the mounting protruding ring 21 is an arc surface, and the arc surface matches the circumferential surface of the mounting protruding ring 21. During the rotation of the rotating table 2, each lifting assembly 3 can rotate to a position aligned with the fixing seat 4 along the radial direction of the rotating table 2.

[0048] The container sterilizing device further comprises a blower 5 and a first body 6. The blower 5 is used to evacuate air from the bottle blank 1, and the first body 6 is used to provide sterilizing gas to the bottle blank 1. The fixing seat 4 is provided with a first air duct 41 for connecting with the blower 5 and a second air duct 42 for connecting with the first body 6. Figure 2-3 As shown, when the lifting assembly 3 rotates to a position radially aligned with the fixing seat 4 along the rotating table 2, the fan 5 extracts the initial gas in the bottle blank 1 to the outside of the bottle blank 1 through the first air duct 41, so that the internal air pressure of the bottle blank 1 is lower than the air pressure in the first main body 6. The sterilizing gas in the first main body 6 can be filled into the bottle blank 1 through the second air duct 42 due to the pressure difference between the two, and the sterilizing gas adheres to the inner surface of the bottle blank 1 to form a basically uniform thin layer of disinfectant.

[0049] The lifting assembly 3 includes a lifting tube 301 that can be lifted and lowered through the mounting convex ring 21, a lifting shaft 302 that can be lifted and lowered through the lifting tube 301, a drainage tube 303 whose upper end is connected to the lower end of the lifting shaft 302, a first cavity 304 that is opened in the lifting shaft 302 and connected to the drainage tube 303, and a second cavity 305 that is arranged between the lifting shaft 302 and the lifting tube 301.

[0050] See also Figure 1-2 As shown, the rotating table 2 is provided with a first convex ring 22 in a radial annular manner, the lifting shaft 302 extends upward from the lifting tube 301 and is inserted into the first convex ring 22, and the container sterilizing device further comprises a first connecting seat 306 connected to the lifting shaft 302 and located between the first convex ring 22 and the lifting tube 301, a rotor 307 rotatably arranged on the first connecting seat 306 around its own axis, and a first elastic member 308 abutting against the first convex ring 22 and the first connecting seat 306. The first elastic member 308 is used to provide an elastic restoring force for driving the first connecting seat 306 to move downward, and the rotor 307 is rotatably arranged on the cam 7, and the rotor 307 is driven to rise by the curve of the cam 7, and is driven to descend by the first elastic member 308, and can also be limited by the curve of the cam 7 while descending.

[0051] See also Figure 1-2 As shown, the rotating table 2 is provided with a second convex ring 23 in a radial annular manner, and the container sterilizing device further comprises a second connecting seat 309 connected to the lifting tube 301 and located below the second convex ring 23, a screw 310 whose lower end is connected to the second connecting seat 309 and whose upper end is located above the first connecting seat 306, a limiting nut 311 provided at the upper end of the screw 310, and a second elastic member 312 abutting between the second convex ring 23 and the second connecting seat 309. The first connecting seat 306 is used to drive the second connecting seat 309 to rise synchronously through the limiting nut 311 after rising a first distance, and the second elastic member 312 is used to provide an elastic restoring force to drive the second connecting seat 309 to move downward. Specifically, during the rising process, when the first connecting seat 306 moves upward until the drainage tube 303 completely exits the bottle blank 1, the first connecting seat 306 abuts against the limiting nut 311 upward, and driven by the screw 310, the first connecting seat 306 and the second connecting seat 309 rise synchronously to achieve a linkage rising action.

[0052] See also Figure 1 As shown, the first protruding ring 22, the first connecting seat 306, the second protruding ring 23, the second connecting seat 309, and the mounting protruding ring 21 are sequentially arranged from top to bottom. Figure 3 As shown, in this embodiment, the screw rod 310 is inserted into the first connecting seat 306 .

[0053] In this embodiment, each first connection seat 306 is connected to two lifting shafts 302, and the first connection seat 306 is used to drive the two lifting shafts 302 to rise and fall synchronously; each second connection seat 309 is connected to two lifting tubes 301, and the second connection seat 309 is used to drive the two lifting tubes 301 to rise and fall synchronously. Through this arrangement, two preforms 1 can be drained under negative pressure at the same time to improve the sterilization efficiency.

[0054] In other embodiments, the number of the lifting shafts 302 and the number of the lifting tubes 301 connected to the first connecting seat 306 and the second connecting seat 309 can be specifically set according to actual needs.

[0055] See also Figure 4 As shown, a suction port 3021 communicating with the first cavity 304 is provided on the side of the lifting shaft 302, and the suction port 3021 is located above the second cavity 305. The lifting shaft 302 includes an isolation section 3022 disposed between the suction port 3021 and the second cavity 305, and the outer diameter of the isolation section 3022 is equal to the inner diameter of the lifting tube 301. By providing the isolation section 3022, the first cavity 304 and the second cavity 305 can be prevented from communicating with each other from inside the lifting tube 301.

[0056] See also Figure 4 As shown, the lifting shaft 302 further includes an air guide section 3023 located below the isolation section 3022, the outer diameter of the air guide section 3023 is smaller than the inner diameter of the lifting tube 301, and the second cavity 305 is disposed between the air guide section 3023 and the lifting tube 301. Obviously, the position of the second cavity 305 changes with the change of the position of the lifting shaft 302 relative to the lifting tube 301.

[0057] See also Figure 4 As shown, in this embodiment, the lifting assembly 3 further includes a first upper opening 3011 and a second upper opening 211 respectively opened on the lifting tube 301 and the mounting convex ring 21, and a first lower opening 3012 and a second lower opening 212 respectively opened on the lifting tube 301 and the mounting convex ring 21, the first upper opening 3011 is located directly above the first lower opening 3012, and the second upper opening 211 is located directly above the second lower opening 212. A first air outlet 411 is provided on the left side of the first air duct 41, and a second air outlet 421 is provided on the left side of the second air duct 42.

[0058] The arc surface of the fixing seat 4 is provided with a first groove 44 for installing the first sealing member 43 . The first groove 44 is provided between the first air outlet 411 of the first air duct 41 and the second air outlet 421 of the second air duct 42 to prevent the first air duct 41 and the second air duct 42 from being connected in series.

[0059] The lifting assembly 3 has a working position (i.e. Figure 4 When the lifting assembly 3 is in the working position:

[0060] The lifting tube 301 and the lifting shaft 302 are respectively lowered to their respective lower stop positions, at which time the lifting tube 301 is sealed on the open end of the corresponding bottle blank 1, the drainage tube 303 is inserted into the corresponding bottle blank 1, and the second cavity 305 is connected with the bottle blank 1. In this embodiment, when the rotating table 2 rotates until the lifting assembly 3 and the fixing seat 4 are aligned along their radial direction, the lifting shaft 302 and the lifting tube 301 are respectively lowered to their respective lower stop positions under the curve limit of the cam 7 and the drive of the first elastic member 308 and the second elastic member 312.

[0061] At this time, the first cavity 304 is connected to the first air duct 41 through the lifting shaft 302 , the lifting tube 301 and the mounting convex ring 21 , and the second cavity 305 is connected to the second air duct 42 through the lifting tube 301 and the mounting convex ring 21 .

[0062] Specifically, the air exhaust port 3021, the first upper opening 3011, the second upper opening 211 and the first air outlet 411 are arranged in sequence from left to right, and the first cavity 304 is connected to the first air duct 41 through the air exhaust port 3021, the first upper opening 3011, the second upper opening 211 and the first air outlet 411; the first lower opening 3012, the second lower opening 212 and the second air outlet 421 are arranged in sequence from left to right, and the second cavity 305 is connected to the second air duct 42 through the first lower opening 3012, the second lower opening 212 and the second air outlet 421.

[0063] In order to prevent the generation of condensed water, a first heating unit 9 , a second heating unit 10 and a third heating unit (not shown in the figure) are respectively provided in the lifting shaft 302 , the rotating table 2 and the fixing seat 4 .

[0064] See also Figure 3 As shown, the first body 6 is used to store disinfectant, and the container disinfection device also includes an ultrasonic atomization generator and / or a heater 8 arranged in the first body 6.

[0065] The ultrasonic atomization generator is used to ultrasonically vibrate the disinfectant to produce a disinfectant gas in the form of mist, and the heater 8 is used to heat the disinfectant at high temperature to produce a disinfectant gas in the form of steam. In this embodiment, the first body 6 is provided with a heater 8 .

[0066] In this embodiment, the disinfectant is a solution containing hydrogen peroxide, which is used to be activated after the preform 1 is heated to a temperature exceeding the activation temperature. The disinfectant is activated after reaching or exceeding the activation temperature, and has the best disinfection effect. Specifically, the hydrogen peroxide is activated after reaching or exceeding the activation temperature, and rapidly decomposes to generate new oxygen, which destroys the protein on the surface of the microorganism through oxidation, thereby killing the microorganism.

[0067] Obviously, in order to sterilize the preform 1 more thoroughly, the preform 1 after negative pressure drainage can be heated. This is a prior art and will not be described in detail here.

[0068] The working process of this embodiment is described in detail below:

[0069] When the rotating table 2 rotates with the preform 1 around its axis, the lifting assembly 3 rotates synchronously and performs lifting motion relative to the preform 1 below under the drive of the cam 7, the first elastic member 308 and the second elastic member 312 and the limit of the cam 7;

[0070] When the lifting assembly 3 rotates to align with the fixing seat 4 along the radial direction of the rotating table 2, the lifting shaft 302 and the lifting tube 301 are respectively lowered to their respective lower stop positions under the limit of the cam 7 and the drive of the first elastic member 308 and the second elastic member 312. At this time, the lifting tube 301 is sealed on the opening end of the corresponding bottle blank 1, and the drainage tube 303 is inserted into the corresponding bottle blank 1.

[0071] At this time, the first cavity 304 is connected with the bottle blank 1 through the drainage tube 303, and the first cavity 304 is also connected with the first air duct 41 through the air extraction port 3021, the first upper opening 3011, the second upper opening 211 and the first air outlet 411 in sequence; the second cavity 305 is connected with the bottle blank 1, and the second cavity 305 is also connected with the second air duct 42 through the first lower opening 3012, the second lower opening 212 and the second air outlet 421 in sequence;

[0072] Under the suction force of the fan 5, the initial gas in the bottle blank 1 is sucked to the outside of the bottle blank 1 through the first air duct 41 via the drainage tube 303, so that the internal air pressure of the bottle blank 1 is lower than the air pressure in the first main body 6, and the sterilizing gas in the first main body 6 is filled into the bottle blank 1 through the second air duct 42 under the action of the pressure difference between the two, and the sterilizing gas adheres to the inner surface of the bottle blank 1 to form a basically uniform thin layer of disinfectant, and the inner surface of the bottle blank 1 is sterilized by the evaporation of the thin layer of disinfectant.

[0073] In order to ensure the disinfection effect, the preform 1 can also be transferred to a heating device for heating, so that the inner surface of the preform 1 rises to a first temperature, which is greater than or equal to the activation temperature of the disinfectant.

[0074] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A container sterilization device, used for replacing the initial gas in the inner space of the container with the sterilization gas in the outer space of the container, wherein the sterilization gas is steam and / or mist, and the container has at least one open end, characterized in that: The container sterilizing device comprises a rotating table for conveying the container in a circumferential direction, a mounting convex ring radially convexly arranged on the outer peripheral portion of the rotating table, a plurality of lifting components arranged on the mounting convex ring at intervals in the circumferential direction, and a fixing seat disposed against the outer peripheral side of the mounting convex ring; a first air duct for connecting to a fan and a second air duct for connecting to a first body are provided in the fixing seat, and the first body is used to provide the sterilizing gas to the container; The lifting assembly includes a lifting tube that can be lifted and lowered through the mounting convex ring, a lifting shaft that can be lifted and lowered through the lifting tube, a drainage tube whose upper end is connected to the lower end of the lifting shaft, a first cavity that is opened in the lifting shaft and communicates with the drainage tube, and a second cavity that is annularly arranged between the lifting shaft and the lifting tube; The lifting assembly has a working position. When the lifting assembly is in the working position: The lifting tube and the lifting shaft are respectively lowered to the lower stop position, the lifting tube is sealed on the open end of the corresponding container, the drainage tube is inserted in the corresponding container, and the second cavity is connected with the container; when the rotating table is rotated until the lifting assembly and the fixing seat are aligned along their radial direction, the first cavity is connected with the first air duct through the lifting shaft, the lifting tube and the mounting convex ring, and the second cavity is connected with the second air duct through the lifting tube and the mounting convex ring.

2. The container sterilizing device according to claim 1, characterized in that: The lifting shaft is provided with an exhaust port connected to the first cavity, and the exhaust port is located above the second cavity. The lifting shaft includes an isolation section arranged between the exhaust port and the second cavity, and the outer diameter of the isolation section is equal to the inner diameter of the lifting tube.

3. The container sterilizing device according to claim 2, characterized in that: The lifting shaft further includes an air guiding section located below the isolation section, the outer diameter of the air guiding section is smaller than the inner diameter of the lifting tube, and the second cavity is arranged in an annular manner between the air guiding section and the lifting tube.

4. The container sterilizing device according to claim 1, characterized in that: The lifting assembly further comprises a first upper opening and a second upper opening respectively opened on the lifting tube and the mounting convex ring, and a first lower opening and a second lower opening respectively opened on the lifting tube and the mounting convex ring; After the lifting assembly is in the working position and the rotating platform rotates until the lifting assembly is aligned with the fixing seat along their radial direction: The first cavity is in communication with the first air duct through the first upper opening and the second upper opening, and the second cavity is in communication with the second air duct through the first lower opening and the second lower opening.

5. The container sterilizing device according to claim 4, characterized in that: A side surface of the fixing seat for abutting against the mounting convex ring is an arc surface, and a first groove for mounting a first seal is provided on the arc surface, and the first groove is provided between the first air outlet of the first air duct and the second air outlet of the second air duct.

6. The container sterilizing device according to claim 1, characterized in that: A first convex ring is radially annularly provided on the rotating table, the lifting shaft extends upward from the lifting tube and is inserted into the first convex ring, the container disinfection device also includes a first connecting seat connected to the lifting shaft and located between the first convex ring and the lifting tube, a rotor rotatable around its own axis on the first connecting seat, a cam for driving the first connecting seat to rise through the rotor, and a first elastic member abutting between the first convex ring and the first connecting seat, the first elastic member being used to provide an elastic restoring force for driving the first connecting seat to move downward.

7. The container sterilizing device according to claim 6, characterized in that: The rotating table is provided with a second convex ring in a radial annular manner, and the container sterilizing device further comprises a second connecting seat connected to the lifting tube and located below the second convex ring, a screw having a lower end connected to the second connecting seat and an upper end located above the first connecting seat, a limiting nut provided at the upper end of the screw, and a second elastic member abutting between the second convex ring and the second connecting seat; The first connecting seat is used to drive the second connecting seat to rise synchronously through the limiting nut after rising a first distance, and the second elastic member is used to provide an elastic restoring force to drive the second connecting seat to move downward.

8. The container sterilizing device according to claim 7, characterized in that: The screw rod is inserted into the first connecting seat.

9. The container sterilizing device according to claim 7, characterized in that: The first convex ring, the first connecting seat, the second convex ring, the second connecting seat, and the mounting convex ring are sequentially arranged at intervals from top to bottom.

10. The container sterilizing device according to claim 1, characterized in that: The first body is used to store disinfectant, and the container disinfection device also includes an ultrasonic atomization generator and / or a heater arranged in the first body.

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