CN117860935B

CN117860935B - Automatic sterilization device for plastic infusion bottle

Info

Publication number: CN117860935B
Application number: CN202410276120.8A
Authority: CN
Inventors: 张勇; 邢云云; 薛身凯; 张天琳; 王纪平; 辛换换; 李元萧; 刘文文; 董福栋; 李旺; 郜明霞
Original assignee: Shandong Deqing Pharmaceutical Co ltd
Current assignee: Shandong Deqing Pharmaceutical Co ltd
Priority date: 2024-03-12
Filing date: 2024-03-12
Publication date: 2024-05-07
Anticipated expiration: 2044-03-12
Also published as: CN117860935A

Abstract

The invention belongs to the technical field of disinfection and sterilization, and particularly relates to an automatic sterilization device for a plastic infusion bottle. So as to solve the problem of incomplete sterilization in the prior art. The device comprises a fastening mechanism and a rotating mechanism; the fastening mechanism comprises a sleeve shell and an adjusting module; the first path of air flow flows to a gap between the rotating module and the bottom of the bottle body, and kills and sterilizes the bottom of the bottle body; the second air flow flows from top to bottom to the bottle body clamped in the sleeve shell, and disinfects the outer surface and the inner part of the bottle body. The fastening mechanism clamps and fixes the bottle body through the roller in the soft sleeve, and when the rotating module drives the bottle body to rotate, the fixed position can be changed, so that the side wall of the bottle body can be completely covered by air flow; the second air flow kills the inside and the side wall of the bottle body, and the first air flow completely covers the bottom of the bottle body, so that the bottle body is completely free of dead angles.

Description

Automatic sterilization device for plastic infusion bottle

Technical Field

The invention belongs to the technical field of disinfection and sterilization, and particularly relates to an automatic sterilization device for a plastic infusion bottle.

Background

The glass bottle transfusion is used as a first-generation transfusion product, and has the defects of poor stability, easiness in generating glass scraps, high probability of secondary pollution and the like due to complex production process, potential hidden danger is formed for human health, and the glass bottle has large weight and high transportation cost, and is easy to cause invisible laceration due to collision in the transportation process, so that a plastic transfusion bottle made of polypropylene is commonly used for replacing the glass bottle to store medicines.

Medical plastic infusion bottle need concentrate after the production send to the sterilization cabinet and disinfect the sterilization work, but after the plastic infusion bottle used damp heat sterilization method, bottle body and its inner wall still have remaining water stain to the bottle body is through disinfecting the work after, and its bottom appears disinfecting the dead angle because taking place to contact with the framework, so the bacterium can remain in the bottom of infusion bottle, appears disinfecting the incomplete problem, so needs to improve.

Disclosure of Invention

The existing plastic infusion bottle sterilization method has residual water stains on the bottle body and the inner wall of the bottle body, and after the bottle body is sterilized, the bottom of the bottle body is contacted with the frame body to generate sterilization dead angles, so bacteria can be remained at the bottom of the infusion bottle, and the problem of incomplete sterilization is caused.

In order to alleviate the technical problems, the technical scheme provided by the invention is as follows:

the invention provides an automatic sterilization device for plastic infusion bottles, which comprises a fastening mechanism and a rotating mechanism; the fastening mechanism comprises a sleeve shell and an adjusting module; the sleeve joint shell is annular, the middle part of the sleeve joint shell is a circular accommodating cavity, and an annular cavity is formed in the sleeve joint shell; the plurality of adjusting modules are annularly arranged in the circular accommodating cavity; the adjusting module comprises an arc clamping plate provided with a cutting groove and communicated with the annular cavity, and a soft sleeve arranged on one side of the arc clamping plate, which is close to the bottle body; the first path of air flow flows to the soft sleeves through the cutting grooves after being input into the annular cavity, and the plurality of soft sleeves expand towards the bottle body at the same time, so that the bottle body is clamped; the rotating mechanism comprises a motor with an upward motor shaft and a rotating module sleeved on the motor shaft, the rotating module can rotate around the axis of the rotating module, the top of the rotating module is fixedly connected with a friction ball, and the friction ball is in butt joint with the bottom of the bottle body; the first path of air flow flows to a gap between the rotating module and the bottom of the bottle body, and kills and sterilizes the bottom of the bottle body; the second air flow flows from top to bottom to the bottle body clamped in the sleeve shell, and disinfects the outer surface and the inner part of the bottle body.

Further, the rotating module comprises a rotating disc, a transition belt and a fixed disc which are sequentially arranged from top to bottom; the rotating disc rotates along with the rotation of the motor shaft; the transition belt is made of an elastic material; the fixed disc is fixedly connected with the motor; the rotating disc, the transition belt and the fixed disc are surrounded to form a cavity, and a telescopic unit is arranged in the cavity; the telescoping unit is configured to strike the rotating disc in a first state and to stop striking the rotating disc in a second state.

Further, the telescopic unit comprises a compression sleeve arranged on the bottom plate of the fixed disc, a spherical end head arranged at the top of the compression sleeve and a spherical clamping block arranged on the lower surface of the rotating disc; the spherical end head is opposite to the cambered surface of the spherical clamping block; the spherical clamping block is driven by the rotating disc to switch between two states of compressing the spherical end head and keeping away from the spherical end head.

Further, an elastic connecting ring is wound on the motor; the elastic connecting ring is a tension spring and is configured to always have the capability of driving the motor to move upwards.

Further, the automatic sterilization device for the plastic infusion bottle further comprises a first accommodating shell and a second accommodating shell positioned below the first accommodating shell; the top of the first accommodating shell is provided with an opening, and the fastening mechanism is positioned in the first accommodating shell and is opposite to the opening; the second air flow is communicated with the inner cavity of the first accommodating shell; the rotating mechanism is positioned inside the first accommodating shell.

Still further, the device also comprises a pressure release mechanism; the pressure release mechanism comprises a switching side plate, a drainage plate, a fixed plugboard and a tension belt which are communicated with the pressure-bearing cavity; the fixed plugboard is arranged inside the second accommodating shell and is fixedly connected with the second accommodating shell; the side of the fixed plugboard, which is away from the second accommodating shell, is provided with a cannula; the drainage plate is a U-shaped plate, and the closed end of the drainage plate is provided with a slot which is arranged corresponding to the insertion tube; the insertion tube is connected with the slot in a sliding way; the opening end of the drainage plate is spliced with the opening at the lower part of the switching side plate and is fixedly connected with the bulge on the inner wall of the switching side plate through a limiting spring; the tension belt is arranged on the outer side of the limit spring; when the pressure in the second accommodation shell is overlarge, the drainage plate moves towards the direction away from the fixed plugboard and compresses the limiting spring, and the tension belt expands outwards under the drive of the pressure, so that the inner cavity space of the pressure release mechanism is enlarged.

Further, the tension band is provided in a wave shape protruding away from the second accommodating case, and comprises a main body, a first hook positioned at the top of the main body, and a second hook positioned at the bottom of the main body; the limiting spring is abutted with the second hook.

Further, the pressure release mechanism further comprises a first limiting block arranged at the upper part of the pressure-bearing cavity and a second limiting block arranged at the lower part of the pressure-bearing cavity; the first hook is hooked on the first limiting block when the tension belt is in a limit expansion state; the second hook is hooked on the second limiting block when the tension belt is in a limit expansion state.

Further, the automatic sterilization device for the plastic infusion bottle also comprises a limiting top plate, an air blowing component arranged at the upper part of the limiting top part and an air outlet nozzle communicated with the air blowing component; the limiting top plate can move along the up-down direction; the air blast component is communicated with the first accommodating shell; the first accommodating shell is communicated with the second accommodating shell; the air outlet nozzle is arranged below the limiting top plate and is opposite to the bottle body.

Further, the air flow flowing from the air blowing component to the first accommodating shell through the limiting top plate is a first air flow; the air flow flowing from the air blowing component to the air outlet nozzle through the limit top plate is the second air flow.

The beneficial effects of the invention are analyzed as follows:

the fastening mechanism clamps and fixes the bottle body through the roller in the soft sleeve, and when the rotating module drives the bottle body to rotate, the fixed position can be changed, so that the side wall of the bottle body can be completely covered by air flow; the second air flow kills the inside and the side wall of the bottle body, and the first air flow completely covers the bottom of the bottle body, so that the bottle body is completely free of dead angles.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a schematic diagram of another embodiment of the present invention;

FIG. 3 is a schematic structural view of a fastening mechanism;

FIG. 4 is a schematic diagram of the structure of the adjustment module;

FIG. 5 is an enlarged schematic view of a portion of FIG. 2A;

FIG. 6 is an enlarged partial schematic view of B in FIG. 5;

fig. 7 is a schematic structural diagram of the pressure release mechanism.

Icon:

100-a fastening mechanism; 110-sleeving the shell; 120-an adjustment module; 121-cutting; 122-arc-shaped clamping plates; 123-soft sleeve;

200-a rotation mechanism; 210-an electric motor; 211-an elastic connection ring; 220-rotating the module; 221-friction ball; 222-rotating a disc; 223-transition zone; 224-a fixed disk; 230-chamber; 240-telescoping units; 241-compression sleeve; 242-spherical head; 243-spherical clamping blocks;

300-bottle body;

400-a first accommodation case; 410-a second housing;

500-a pressure release mechanism; 510-a pressure-bearing cavity; 511-a first stopper; 512-a second limiting block; 520-switching side plates; 530-drainage plate; 531-slots; 540-fixing the plugboard; 541-intubation; 550-pulling force belt; 551-body; 552-a first hook; 553, a second hook; 560-limit springs;

600-limiting top plate;

700-blower part;

800-air outlet nozzle.

Detailed Description

Medical plastic infusion bottle need concentrate to send to the sterilization cabinet after the production and disinfect the fungus work, but after the plastic infusion bottle used damp and hot sterilization method, bottle body and its inner wall still have remaining water stain to the bottle body is through disinfecting the work after, and its bottom appears disinfecting the dead angle because taking place to contact with the framework, so the bacterium can remain in the bottom of infusion bottle, appears disinfecting the incomplete problem, so needs the improvement.

In view of this, the present invention provides an automatic sterilization apparatus for plastic infusion bottles, as shown in fig. 1 to 5, comprising a fastening mechanism 100 and a rotating mechanism 200; the fastening mechanism 100 includes a socket housing 110 and an adjustment module 120; the sleeve shell 110 is annular, the middle part is a circular accommodating cavity, and an annular cavity is formed in the sleeve shell 110; the plurality of adjustment modules 120 are annularly arranged in the circular accommodating cavity; the adjusting module 120 comprises an arc clamping plate 122 provided with a cutting groove 121 and communicated with the annular cavity, and a soft sleeve 123 arranged on one side of the arc clamping plate 122 close to the bottle body 300; the first air flow enters the annular cavity and flows to the soft sleeves 123 through the cutting grooves 121, and the plurality of soft sleeves 123 simultaneously expand towards the bottle 300, so that the bottle 300 is clamped; the rotating mechanism 200 comprises a motor 210 with an upward motor shaft and a rotating module 220 sleeved on the motor shaft, wherein the rotating module 220 can rotate around the axis of the rotating module 220, the top of the rotating module 220 is fixedly connected with a friction ball 221, and the friction ball 221 is in butt joint with the bottom of the bottle 300; the first air flow flows to the gap between the rotating module 220 and the bottom of the bottle 300, and kills and sterilizes the bottom of the bottle 300; the second air flow flows from top to bottom to the bottle 300 clamped in the sleeve housing 110, and disinfects the outer surface and the inner part of the bottle 300.

After the bottle 300 to be sterilized is inserted into the fastening mechanism 100, the device is started, a first path of air flow enters the annular cavity of the fastening mechanism 100, the air extrusion cutting groove 121 is close to the soft sleeve 123 on one side of the bottle 300, the soft sleeve 123 is expanded to clamp the bottle 300, when the device is required to be described, the soft sleeve 123 is made of rubber materials, the edge of the soft sleeve 123 is connected with the cutting groove 121, the cutting groove 121 is closed, differential pressure difference on two sides of the annular cavity enables the soft sleeve 123 to expand, the rolling wheels are inserted into the cutting groove 121, in the expanded state of the soft sleeve 123, the side walls of the rolling wheels are in rotary contact with the bottle 300, the soft sleeve 123 is not in contact with the bottle 300, the upper end and the lower end of the rolling wheels are connected with the inner wall on one side of the arc-shaped clamping plate 122, close to the bottle 300, and therefore, when the first path of air flow is closed, the rolling wheels can be moved away from the bottle 300, and the fastening mechanism 100 is relaxed to facilitate the bottle 300 to be taken out; when the rotating module 220 rotates, the friction ball 221 contacts with the bottle 300 and drives the bottle 300 to rotate, and the roller assists the bottle 300 to rotate; the first path of air flow kills and sterilizes the bottom of the bottle 300, the second path of air flow blows to the bottle 300 from top to bottom to kill bacteria in and on the outer wall of the bottle 300, and the first path of air flow and the second path of air flow work together to ensure that the bottle 300 has no dead angle for cleaning in the killing process, thereby improving the sterilizing effect.

Regarding the shape and structure of the rotation module 220, as shown in fig. 5 and 6:

The rotating module 220 comprises a rotating disc 222, a transition belt 223 and a fixed disc 224 which are sequentially arranged from top to bottom; the rotating disk 222 rotates with the rotation of the motor shaft; the transition zone 223 is made of an elastic material; the fixed disk 224 is fixedly connected with the motor 210; the rotating disc 222, the transition belt 223 and the fixed disc 224 are surrounded to form a cavity 230, and a telescopic unit 240 is arranged in the cavity 230; the telescopic unit 240 is configured to strike the rotating disc 222 in the first state and to stop striking the rotating disc 222 in the second state.

Specifically, the rotating disc 222 is fixedly connected with the motor shaft and can rotate along with the motor shaft, the fixed disc 224 is connected with the motor 210 so as not to rotate, the transition belt 223 is arranged between the rotating disc 222 and the fixed disc 224 in a linking way, when the telescopic unit 240 strikes the rotating disc 222, the rotating disc 222 can slightly move upwards, the transition belt 223 made of elastic materials can be properly elongated, and the feasibility of upward movement of the rotating disc 222 is ensured; in the process of reciprocally switching the telescopic unit 240 from the first state to the second state, the bottle 300 can be moved up and down, and the bottle 300 is clamped by the fastening mechanism 100, so that the frequency of up-and-down movement of the bottle 300 is changed, gaps are intermittently formed between the bottle 300 and the rotating disc 222, and no dead angle is caused to the cleaning of the bottom of the bottle 300 by the first path of air flow.

Regarding the shape and structure of the telescopic unit 240, as shown in fig. 6:

the telescopic unit 240 comprises a compression sleeve 241 arranged on the bottom plate of the fixed disc 224, a spherical end 242 arranged on the top of the compression sleeve 241, and a spherical clamping block 243 arranged on the lower surface of the rotating disc 222; the cambered surfaces of the spherical end head 242 and the spherical clamping block 243 are opposite; the spherical clamping block 243 is driven by the rotating disk 222 to switch between a state of compressing the spherical end 242 and a state of being far away from the spherical end 242.

Specifically, the compression sleeve 241 is made of an elastic material, and when the spherical end 242 contacts the spherical clamping block 243, the compression sleeve 241 is contracted downward; when the spherical clamping block 243 is far away from the spherical end 242, the compression sleeve 241 is extended upwards.

As shown in fig. 5, the motor 210 is further wound with an elastic connection ring 211;

the elastic connection ring 211 is a tension spring configured to always have the ability to drive the motor 210 to move upward.

As shown in fig. 2, the automatic sterilization device for plastic infusion bottles further comprises a first accommodating case 400, and a second accommodating case 410 positioned below the first accommodating case 400; the top of the first accommodating case 400 is provided with an opening, and the fastening mechanism 100 is positioned inside the first accommodating case 400 and is opposite to the opening; the second air flow is communicated with the inner cavity of the first accommodating shell 400; the rotation mechanism 200 is located inside the first housing case 400.

As shown in fig. 7, the automatic sterilization device for plastic infusion bottles further comprises a pressure release mechanism 500; the pressure release mechanism 500 comprises a transfer side plate 520, a drainage plate 530, a fixed insertion plate 540 and a tension belt 550 which are communicated with the pressure-bearing cavity 510; the fixing insert plate 540 is disposed inside the second accommodating case 410 and fixedly connected with the second accommodating case 410; the fixed insertion plate 540 has an insertion tube 541 on a side facing away from the second accommodating case 410; the drainage plate 530 is a U-shaped plate, and the closed end of the drainage plate 530 is provided with a slot 531 which is arranged corresponding to the insertion tube 541; the cannula 541 is slidably connected to the slot 531; the open end of the drainage plate 530 is spliced with the lower opening of the switching side plate 520 and is fixedly connected with the bulge on the inner wall of the switching side plate 520 through a limit spring 560; the tension band 550 is arranged outside the limit spring 560; when the pressure in the second accommodating case 410 is too high, the drainage plate 530 moves away from the fixing insert plate 540 and compresses the limiting spring 560, and the tension band 550 expands outwards under the driving of the pressure, so that the inner cavity space of the pressure release mechanism 500 becomes large.

Specifically, when the exhaust is not smooth, the internal air pressure will be raised, and the pressure in the second accommodating case 410 is greater than the air pressure in the pressure release mechanism 500, and the drainage plate 530 will move away from the second accommodating case 410 under the action of the pressure, and when the air pressure difference is too large, the drainage plate 530 will completely move into the adapting side plate 520, and the slot 531 is separated from the insertion tube 541, so that the pressure release mechanism 500 is communicated with the second accommodating case 410, and the pressure in the second accommodating case 410 is shared by the pressure release mechanism 500.

The operating principle of the pressure release mechanism 500 is shown in fig. 7:

The tension band 550 is provided in a wave shape protruding in a direction away from the second receiving case 410, and includes a main body 551, a first hook 552 at the top of the main body 551, and a second hook 553 at the bottom of the main body 551; the limit spring 560 is abutted with the second hook 553; pressure relief mechanism 500 further includes a first stopper 511 disposed at an upper portion of pressure-bearing chamber 510, and a second stopper 512 disposed at a lower portion of pressure-bearing chamber 510; the first hook 552 is hooked to the first stopper 511 when the tension band 550 is in a limit-expanded state; the second hook 553 is hooked to the second limiting block 512 when the tension band 550 is in a limit-expanded state.

Specifically, after the gas enters the pressure release mechanism 500 from the slot 531, the tension belt 550 is pushed to move away from the second accommodating case 410, and the expansion of the pressure release mechanism 500 can be observed from the outside, where it is to be noted that the purpose of the pressure release mechanism 500 is to provide pressure buffering for the device and remind the staff that the device needs maintenance when the gas is abnormal in exhaust.

As shown in fig. 1 and 2, the automatic sterilization device for plastic infusion bottles further comprises a limit top plate 600, an air blowing part 700 arranged at the upper part of the limit top plate 600, and an air outlet nozzle 800 communicated with the air blowing part 700; the limit top plate 600 can move in the up-down direction; the blowing part 700 communicates with the first housing case 400; the first receiving case 400 communicates with the second receiving case 410; the air outlet nozzle 800 is arranged below the limiting top plate 600, and the air outlet nozzle 800 is opposite to the bottle 300; the air flow flowing from the air blowing part 700 to the first receiving case 400 through the limit ceiling 600 is a first path of air flow; the air flow from the air blowing unit 700 to the air outlet nozzle 800 through the restriction top plate 600 is the second air flow.

The invention has at least the following beneficial effects:

1. the fastening mechanism 100 clamps and fixes the bottle 300 through the roller in the soft sleeve 123, and when the rotating module 220 drives the bottle 300 to rotate, the fixed position is changed, so that the side wall of the bottle 300 can be completely covered by air flow; the second air flow sprayed by the air outlet nozzle 800 is aligned with the bottle mouth of the bottle body 300, so that no dead angle exists in the bottle body 300; when the rotation module 220 drives the bottle 300 to rotate, an intermittent gap is generated between the bottom of the bottle 300 and the rotation disc 222, so that the first path of air flow completely covers the bottom of the bottle 300, and the bottle 300 is completely free from dead corners.

2. The pressure release mechanism 500 is arranged on the side edge of the second accommodating shell 410, the pressure release mechanism 500 can check whether the airflow of the device is smooth, and the pressure release mechanism 500 can expand to lift staff for maintenance when abnormal.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limited thereto; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic sterilization device for plastic infusion bottles is characterized in that:

comprises a fastening mechanism (100) and a rotating mechanism (200);

the fastening mechanism (100) comprises a sleeve shell (110) and an adjusting module (120);

the sleeve joint shell (110) is annular, the middle part of the sleeve joint shell is a circular accommodating cavity, and an annular cavity is formed in the sleeve joint shell (110);

A plurality of the adjustment modules (120) are annularly arranged in the circular accommodating cavity;

the adjusting module (120) comprises an arc clamping plate (122) provided with a cutting groove (121) and communicated with the annular cavity, and a soft sleeve (123) arranged on one side, close to the bottle body (300), of the arc clamping plate (122);

The first air flow enters the annular cavity and flows to the soft sleeves (123) through the cutting grooves (121), and a plurality of soft sleeves (123) expand towards the bottle body (300) at the same time, so that the bottle body (300) is clamped;

the rotating mechanism (200) comprises a motor (210) with an upward motor shaft and a rotating module (220) sleeved on the motor shaft, the rotating module (220) can rotate around the axis of the rotating module, the top of the rotating module (220) is fixedly connected with a friction ball (221), and the friction ball (221) is in butt joint with the bottom of the bottle body (300);

The first air flow flows to a gap between the rotating module (220) and the bottom of the bottle body (300) and kills and sterilizes the bottom of the bottle body (300);

The second air flow flows to the bottle body (300) clamped in the sleeve joint shell (110) from top to bottom, and disinfects the outer surface and the inner part of the bottle body (300);

the rotating module (220) comprises a rotating disc (222), a transition belt (223) and a fixed disc (224) which are sequentially arranged from top to bottom;

The rotating disc (222) rotates along with the rotation of the motor shaft;

the transition zone (223) is made of an elastic material;

the fixed disc (224) is fixedly connected with the motor (210) body;

The rotating disc (222), the transition belt (223) and the fixed disc (224) are surrounded to form a cavity (230), and a telescopic unit (240) is arranged in the cavity (230);

-the telescopic unit (240) is configured to hit the rotating disc (222) in a first state and to stop hitting the rotating disc (222) in a second state;

The telescopic unit (240) comprises a compression sleeve (241) arranged on the bottom plate of the fixed disc (224), a spherical end head (242) arranged at the top of the compression sleeve (241), and a spherical clamping block (243) arranged on the lower surface of the rotating disc (222); the cambered surfaces of the spherical end head (242) and the spherical clamping block (243) are opposite;

The spherical clamping block (243) is driven by the rotating disc (222) to switch between two states of compressing the spherical end head (242) and being far away from the spherical end head (242);

An elastic connecting ring (211) is also wound on the motor (210) body;

The elastic connecting ring (211) is a tension spring and is configured to always have the capability of driving the motor (210) body to move upwards; the automatic sterilization device for the plastic infusion bottle further comprises a first accommodating shell (400) and a second accommodating shell (410) positioned below the first accommodating shell (400);

the top of the first accommodating shell (400) is provided with an opening, and the fastening mechanism (100) is positioned inside the first accommodating shell (400) and is opposite to the opening;

the second air flow is communicated with the inner cavity of the first accommodating shell (400);

The rotating mechanism (200) is positioned inside the first accommodating case (400);

the automatic sterilization device for the plastic infusion bottle further comprises a limiting top plate (600), an air blowing component (700) arranged at the upper part of the limiting top part and an air outlet nozzle (800) communicated with the air blowing component (700);

the limit top plate (600) can move along the up-down direction;

the air blowing part (700) communicates with the first housing case (400);

The first housing case (400) communicates with the second housing case (410);

The air outlet nozzle (800) is arranged below the limiting top plate (600) and the air outlet nozzle (800) is opposite to the bottle body (300);

the air flow flowing from the air blowing component (700) to the first accommodating shell (400) through the limiting top plate (600) is a first air flow;

The air flow from the air blowing component (700) to the air outlet nozzle (800) through the limit top plate (600) is a second air flow.

2. The automatic sterilization device for plastic infusion bottles according to claim 1, wherein:

The device also comprises a pressure release mechanism (500);

The pressure release mechanism (500) comprises a switching side plate (520), a drainage plate (530), a fixed plugboard (540) and a tension belt (550), which are communicated with the pressure-bearing cavity (510);

the fixed plugboard (540) is arranged inside the second accommodating shell (410) and is fixedly connected with the second accommodating shell (410);

A cannula (541) is arranged on one side of the fixed plugboard (540) away from the second accommodating shell (410);

the drainage plate (530) is a U-shaped plate, and a slot (531) which is arranged corresponding to the insertion tube (541) is arranged at the closed end of the drainage plate (530);

The insertion tube (541) is in sliding connection with the slot (531);

The opening end of the drainage plate (530) is spliced with the opening at the lower part of the switching side plate (520) and is fixedly connected with the bulge on the inner wall of the switching side plate (520) through a limiting spring (560);

The tension belt (550) is arranged on the outer side of the limit spring (560);

When the pressure in the second accommodating case (410) is overlarge, the drainage plate (530) moves away from the fixed insertion plate (540) and compresses the limit spring (560), and the tension belt (550) expands outwards under the drive of the pressure, so that the inner cavity space of the pressure release mechanism (500) is enlarged.

3. The automatic sterilization device for plastic infusion bottles according to claim 2, wherein:

the tension belt (550) is arranged in a wave shape protruding away from the second accommodating shell (410), and comprises a main body (551), a first hook (552) positioned at the top of the main body (551) and a second hook (553) positioned at the bottom of the main body (551);

the limiting spring (560) is abutted with the second hook (553).

4. The automatic sterilization device for plastic infusion bottles as claimed in claim 3 wherein:

the pressure release mechanism (500) further comprises a first limiting block (511) arranged at the upper part of the pressure-bearing cavity (510), and a second limiting block (512) arranged at the lower part of the pressure-bearing cavity (510);

The first hook (552) is hooked on the first limiting block (511) when the tension belt (550) is in a limit expansion state;

The second hook (553) is hooked on the second limiting block (512) when the tension belt (550) is in a limit expansion state.