A fully automatic ethylene oxide sterilizer

Abstract

This invention discloses a fully automatic ethylene oxide sterilizer, relating to the field of sterilizer technology. It includes a chassis with a top platform on one side of its upper end. An extraction port is located on the upper surface of the chassis near the top platform. A central shaft is installed between the lower surface of the chassis and the top platform. Sterilization tanks are fixedly connected to both sides of the upper end of the central shaft. A drive assembly for intermittently rotating the central shaft is provided on the lower surface of the chassis. This invention, through the configured drive assembly, third limit switch, second limit switch, fourth limit switch, and first limit switch, enables automatic sterilization during use. During operation, it can complete processes such as alternating sterilization tanks, evacuation, ethylene oxide injection, and exhaust, achieving automatic operation without manual intervention.

Description

Technical Field

[0001] This invention relates to the field of sterilizer technology, specifically a fully automatic ethylene oxide sterilizer. Background Technology

[0002] Ethylene oxide gas (also known as ethylene oxide gas, commonly referred to as EO) is the most effective known gaseous sterilizer. This technology was developed over 30 years ago for the sterilization of heat- and moisture-sensitive items. It is the optimal sterilization choice for surgical precision medical instruments, optical instruments, electronic equipment, and plastic products. In 1965, the first 100% ethylene oxide (EO) gas sterilizer was introduced. With its continuously improving technology and unique products, it ensures operator safety and protects the environment from pollution.

[0003] The prior art CN 213554004 U proposes a fully automatic ethylene oxide sterilizer, including a base plate, a sterilization chamber fixedly connected to the top of the base plate, a support plate inside the sterilization chamber, door panels on both sides of the sterilization chamber, and a storage tank on the top of the sterilization chamber. Utilizing this purification chamber configuration, the purification chamber, under the action of a vacuum pump, can remove ethylene oxide from the sterilization chamber. Substances on the filter screen undergo an addition reaction, resulting in absorption and purification, reducing the risk of ethylene oxide leakage and harm to workers, thereby improving the safety performance of the sterilization process.

[0004] However, this sterilizer still has certain shortcomings in its use. When using this sterilizer, it is necessary to wait for the sterilization to be completed after each item is placed before the next sterilization can be carried out. Moreover, the process of placing and unloading items wastes a lot of time, resulting in low work efficiency and the inability to achieve continuous operation. At the same time, the existing sterilizer has certain difficulties in picking up and unloading materials. In order to address the above problems, we provide a fully automatic ethylene oxide sterilizer to solve the aforementioned issues. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automatic ethylene oxide sterilizer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully automatic ethylene oxide sterilizer includes a chassis, a top platform on one side of the upper end of the chassis, an extraction port on the upper surface of the chassis near the top platform, a central shaft installed between the lower surface of the chassis and the top platform, sterilization tanks fixedly connected to both sides of the upper end of the central shaft, and a drive assembly for driving the central shaft to rotate intermittently on the lower surface of the chassis.

[0008] A square shaft is slidably connected to the lower end of the inner surface of the disinfection tank. A side wheel is provided on one side of the square shaft. A limiting cam is provided in the middle of the inner surface of the housing. A support frame fixed to the lower end of the limiting cam is provided. An inner shaft is rotatably connected inside the square shaft. A conical friction wheel is fixedly connected to the lower end of the inner shaft. A rotating disk is fixedly connected to the upper end of the inner shaft. Several support rods are provided on the upper surface of the rotating disk. A rotating assembly for driving the conical friction wheel to rotate is provided on one side of the housing.

[0009] The upper edge of the disinfection barrel is provided with a sealing ring that matches the lower edge of the top platform, and the upper end of the top platform is provided with an adding component for adding ethylene oxide gas into the disinfection barrel.

[0010] The lower end face of the chassis is also provided with a power component for driving the drive component and the rotation component.

[0011] As a further embodiment of the present invention: the drive assembly includes a bottom gear disposed at the lower end of the central shaft, the bottom gear having an overrunning clutch inside, two slide rods fixedly connected to the lower end face of the housing, a rack slidably connected to the slide rods, push blocks fixedly connected to both sides of one end of the rack, a second spring passing through one end of the slide rod and the rack, the rack meshing with the bottom gear, a locking disc fixedly connected to the lower end of the central shaft, notches being provided on both sides of the locking disc, an actuating assembly for driving the rack to reciprocate, and a locking assembly for locking the locking disc, the upper end face of the housing having an actuating assembly for driving the rack to reciprocate, and the lower end face of the housing having a locking assembly for locking the locking disc.

[0012] As a further embodiment of the present invention: the actuating assembly includes a power shaft, which is rotatably connected to both sides of the lower end face of the housing. Each of the two power shafts has a pulley installed at its upper end, and a first transmission belt is installed between the two pulleys. A toggle block is fixedly connected to one side of the first transmission belt. A worm gear is fixedly connected to the lower end of the power shaft at the position where it passes through the housing. The lower end face of the housing is also provided with a support stop for supporting the first transmission belt.

[0013] As a further embodiment of the present invention: the locking assembly includes a fixed base, which is located on the lower end face of the chassis near the locking disc. A sliding rod is slidably connected inside the fixed base. One end of the sliding rod is provided with a locking head for engaging with a notch to lock the locking disc. Several first springs are threaded through the sliding rod. Several guide wheels are also provided on the upper end face of the chassis. A support slide is provided on the lower end face of the chassis near the pulley. A sliding shaft is slidably connected inside the support slide. A paddle is fixedly connected to one end of the sliding shaft, and a pull rope is connected to the other end of the sliding shaft. The end of the pull rope away from the sliding shaft is connected to the sliding rod.

[0014] As a further embodiment of the present invention: the rotating assembly includes a fixed slide, which is fixedly connected to one side of the chassis. A sliding seat is fixedly connected to one end of the fixed slide. A U-shaped slide is slidably connected inside the sliding seat. A mounting shaft is rotatably connected inside the U-shaped slide. A second conical friction wheel for cooperating with a conical friction wheel is mounted on one end of the mounting shaft. A transmission gear is fixedly connected to the mounting shaft. A sliding square column is slidably connected to the side of the fixed slide away from the sliding seat. The sliding square column is fixedly connected to the U-shaped slide. A third spring passes through the sliding square column. A long gear is provided on one side of the chassis below the transmission gear.

[0015] As a further embodiment of the present invention: the power assembly includes a drive motor, which is fixedly connected to the lower end face of the chassis. A drive shaft is installed at the output end of the drive motor. A worm gear that meshes with a worm wheel is provided on the drive shaft. Both the connecting shaft of the power shaft and the end of the drive shaft are equipped with transmission pulleys, and a second transmission belt is installed between the two transmission pulleys.

[0016] As a further embodiment of the present invention: the added component includes an ethylene oxide storage tank, which is located on the upper end face of the top platform. The lower port of the ethylene oxide storage tank is connected to the top platform via a discharge pipe. A metering valve is provided on the discharge pipe. The top platform is also provided with a suction and discharge assembly for extracting and discharging gas from the disinfection tank.

[0017] As a further embodiment of the present invention: the exhaust assembly includes an exhaust pump, which is located on one side of the upper surface of the top platform. The input end of the exhaust pump is connected through the top platform, and the output end of the exhaust pump is provided with a waste gas treatment device. The upper surface of the top platform is also provided with an exhaust pump for extracting air.

[0018] As a further embodiment of the present invention: a second limit switch, a third limit switch, a fourth limit switch and a first limit switch are also installed on the lower end face of the chassis near the first transmission belt.

[0019] As a further embodiment of the present invention: the lower end face of the chassis is also provided with a controller, and the second limit switch, the third limit switch, the fourth limit switch, the first limit switch, the metering valve, the exhaust pump and the suction pump are all electrically connected to the controller.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention uses two sterilization tanks that switch between each other for alternating sterilization, thereby effectively improving the working efficiency of the sterilizer and enabling continuous operation.

[0022] 2. The present invention, through the setting of the drive component, the third limit switch, the second limit switch, the fourth limit switch and the first limit switch, can achieve automatic sterilization during use. During operation, it can complete the processes of alternating the sterilization tank, evacuation, ethylene oxide injection and exhaust, so that no manual intervention is required during operation and automatic operation is achieved.

[0023] 3. The present invention uses a rotating component to drive the support rod to rotate during operation, which allows the items to be sterilized to come into more thorough contact with ethylene oxide, thereby improving the sterilization effect. At the same time, the support rod can support the bottom of the items, so that the bottom of the items can also come into contact with ethylene oxide to achieve sterilization of the bottom.

[0024] 4. The present invention, through the setting of side wheels and square shaft, can change the height of the rotating disk during operation, so that the rotating disk can be raised when picking up and putting down materials, making it easier to pick up materials, and the rotating disk can be raised and lowered during operation, making it more convenient to use and avoiding the inconvenience of picking up and putting down materials in the prior art. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure when the box door is opened in this invention.

[0027] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0028] Figure 4 This is a schematic diagram of the bottom surface of the chassis in this invention.

[0029] Figure 5 This is a schematic diagram of the bottom structure in this invention.

[0030] Figure 6 This is a partial structural diagram of the present invention.

[0031] Figure 7 This is a schematic diagram of the internal structure of the disinfection bucket in this invention.

[0032] Figure 8 This is a schematic diagram of the pull rope structure in this invention.

[0033] Figure 9 This is a schematic diagram of the rack structure in this invention.

[0034] The components include: 1. Chassis; 2. First spring; 3. Disinfection tank; 4. Extraction port; 5. Top platform; 6. Vacuum pump; 7. Ethylene oxide storage tank; 8. Exhaust pump; 9. Waste gas treatment device; 10. Metering valve; 11. Discharge pipe; 12. Central shaft; 13. Rack; 14. Locking disc; 15. First transmission belt; 16. Conical friction wheel; 17. Square shaft; 18. First limit switch; 19. Second spring; 20. Second limit switch; 21. Third limit switch; 22. Pulley; 23. Fourth limit switch; 24. Second transmission belt; 25. Transmission pulley; 26. Drive shaft; 27. Worm gear; 28. Drive... 29. Motor; 30. Worm gear; 31. Long gear; 32. Locking disc; 33. Notch; 34. Power shaft; 35. Support stop; 36. Paddle; 37. Pull rope; 38. Second conical friction wheel; 39. Push block; 40. Slide rod; 41. Sliding seat; 42. Fixed slide; 43. Sliding square column; 44. Third spring; 45. Transmission gear; 46. Mounting shaft; 47. Inner shaft; 48. Support rod; 49. Side wheel; 50. Sliding shaft; 51. Support slide; 52. Guide wheel; 53. Fixed seat; 54. Locking head; 55. Sliding straight rod; 56. Rotary disc; 57. Bottom gear; 58. Paddle. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-9 In this embodiment of the invention, a fully automatic ethylene oxide sterilizer includes a housing 1. A top platform 5 is provided on one side of the upper end of the housing 1. An extraction port 4 is opened on the upper surface of the housing 1 near the top platform 5. A central shaft 12 is installed between the lower surface of the housing 1 and the top platform 5. Sterilization tanks 3 are fixedly connected to both sides of the upper end of the central shaft 12. A drive assembly for driving the central shaft 12 to rotate intermittently is provided on the lower surface of the housing 1. During operation, the drive assembly can drive the central shaft 12 to rotate intermittently, thereby realizing the switching between the sterilization tanks 3 and thus realizing the continuous operation of the sterilizer.

[0037] The drive assembly includes a bottom gear 56 located at the lower end of the central shaft 12. The bottom gear 56 has an overrunning clutch inside. Two slide rods 39 are fixedly connected to the lower end face of the housing 1. A rack 13 is slidably connected to the slide rods 39. Push blocks 38 are fixedly connected to both sides of one end of the rack 13. A second spring 19 passes between one end of the slide rod 39 and the rack 13. The rack 13 meshes with the bottom gear 56. A locking disc 31 is also fixedly connected to the lower end of the central shaft 12. The locking disc 31 has notches 32 on both sides. The upper end face of the housing 1 is provided with a toggle assembly for driving the rack 13 to reciprocate. The lower end face of the housing 1 is also provided with a locking assembly for locking the locking disc 31.

[0038] During operation, the actuating component drives the rack 13 to move, and the movement of the rack 13 drives the bottom gear 56 to rotate. Due to the overrunning clutch, the central shaft 12 will not rotate. When the rack 13 moves to the end of the slide bar 39, the actuating block 57 will disengage from the push block 38. Then the actuating block 57 continues to work to unlock and lock the component to release the bottom gear 56. Then the rack 13 drives the central shaft 12 to rotate. After the central shaft 12 rotates 180 degrees, the locking component locks the locking disc 31 again, thereby completing the mutual exchange of the disinfection barrels 3.

[0039] The actuating assembly includes a power shaft 33, which is rotatably connected to both sides of the lower end face of the housing 1. Each power shaft 33 has a pulley 22 mounted on its upper end, and a first transmission belt 15 is installed between the two pulleys 22. A lever 57 is fixedly connected to one side of the first transmission belt 15. A worm gear 27 is fixedly connected to the lower end of the power shaft 33, which extends out of the housing 1. The lower end face of the housing 1 is also provided with a support stop 34 for supporting the first transmission belt 15. During operation, the drive assembly drives the pulleys 22 to rotate, which in turn drives the first transmission belt 15 to rotate. The rotation of the first transmission belt 15 drives the lever 57 to move, which in turn drives the rack 13 to move.

[0040] The locking assembly includes a fixed base 52, which is located on the lower end face of the chassis 1 near the locking disc 31. A sliding rod 54 is slidably connected inside the fixed base 52. One end of the sliding rod 54 is provided with a locking head 53 for engaging with the notch 32 to lock the locking disc 31. Several guide wheels 51 are also provided on the upper end face of the chassis 1. A support slide 50 is provided on the lower end face of the chassis 1 near the pulley 22. A sliding shaft 49 is slidably connected inside the support slide 50. A lever 35 is fixedly connected to one end of the sliding shaft 49, and a pull rope 36 is connected to the other end of the sliding shaft 49. The end of the pull rope 36 away from the sliding shaft 49 is connected to the sliding rod 54. During operation, the locking head 53 engages with the notch 32 to lock the locking disc 31. During unlocking, the lever 57 moves the lever 35 to pull the pull rope 36, thereby pulling out the locking head 53 and releasing the locking disc 31.

[0041] A square shaft 17 is slidably connected to the lower end of the inner surface of the disinfection tank 3. A side wheel 48 is provided on one side of the square shaft 17. A limiting cam is provided in the middle of the inner surface of the housing 1. A support frame fixed to the lower end of the limiting cam is provided at the lower end of the housing 1. An inner shaft 46 is rotatably connected inside the square shaft 17. A conical friction wheel 16 is fixedly connected to the lower end of the inner shaft 46. A rotating disk 55 is fixedly connected to the upper end of the inner shaft 46. Several support rods 47 are provided on the upper surface of the rotating disk 55. A rotating assembly for driving the conical friction wheel 16 to rotate is provided on one side of the housing 1. By setting the side wheel 48 and the square shaft 17, the height of the rotating disk 55 can be changed during operation, so that the rotating disk 55 can be raised when picking up and putting down materials for easy picking up of materials, and the rotating disk 55 can be lowered during operation, making it more convenient to use and avoiding the inconvenience of picking up and putting down materials in the prior art.

[0042] The rotating assembly includes a fixed slide 41, which is fixedly connected to one side of the chassis 1. A sliding seat 40 is fixedly connected to one end of the fixed slide 41. A U-shaped slide is slidably connected inside the sliding seat 40. A mounting shaft 45 is rotatably connected inside the U-shaped slide. A second conical friction wheel 37 for cooperating with a conical friction wheel 16 is mounted on one end of the mounting shaft 45. A transmission gear 44 is fixedly connected to the mounting shaft 45. A sliding square post 42 is slidably connected to the side of the fixed slide 41 away from the sliding seat 40. The sliding square post 42 is fixedly connected to the U-shaped slide. A third spring 43 is installed on the moving square column 42. A long gear 30 is installed on one side of the housing 1 below the transmission gear 44. During operation, the drive assembly drives the long gear 30 to rotate. The rotation of the long gear 30 drives the transmission gear 44. The rotation of the transmission gear 44 drives the second conical friction wheel 37. The rotation of the second conical friction wheel 37 drives the conical friction wheel 16 to rotate, which in turn drives the rotating disk 55 to rotate. At the same time, due to the setting of the third spring 43, the second conical friction wheel 37 can have a certain displacement, so that the conical friction wheel 16 can smoothly contact and transmit power with the second conical friction wheel 37.

[0043] The upper edge of the disinfection tank 3 is provided with a sealing ring that mates with the lower edge of the top platform 5. The top platform 5 has an addition assembly for adding ethylene oxide gas into the disinfection tank 3. The addition assembly includes an ethylene oxide storage tank 7, which is located on the upper edge of the top platform 5. The lower port of the ethylene oxide storage tank 7 is connected to the top platform 5 via a discharge pipe 11. The discharge pipe 11 is equipped with a metering valve 10. The top platform 5 also has a suction and exhaust assembly for extracting and venting gas from the disinfection tank 3. The suction and exhaust assembly includes an exhaust pump 8, which is located on one side of the upper edge of the top platform 5. The exhaust pump 8 is connected to the top platform 5 through the input end, and the exhaust pump 8 is equipped with an exhaust gas treatment device 9 at the output end. The top platform 5 is also equipped with an exhaust pump 6 for extracting air. The lower end of the chassis 1 is also equipped with a second limit switch 20, a third limit switch 21, a fourth limit switch 23 and a first limit switch 18 near the first transmission belt 15. The lower end of the chassis 1 is also equipped with a controller, and the second limit switch 20, the third limit switch 21, the fourth limit switch 23, the first limit switch 18, the metering valve 10, the exhaust pump 8 and the exhaust pump 6 are all electrically connected to the controller.

[0044] During operation, the first transmission belt 15 rotates, and the toggle block 57 first touches the second limit switch 20. When it touches the second limit switch 20, the vacuum pump 6 starts to evacuate the inside of the disinfection tank 3. Then, when it touches the third limit switch 21, it stops evacuating the air. At the same time, the metering valve 10 injects a certain amount of ethylene oxide into the disinfection tank 3. When the toggle block 57 touches the fourth limit switch 23, the exhaust pump 8 starts to drive the exhaust gas in the disinfection tank 3 to be discharged to the exhaust gas treatment device 9. After being purified by the exhaust gas treatment device 9, it is discharged, thus completing the disinfection of the items in the disinfection tank 3.

[0045] The lower end face of the chassis 1 is also provided with a power component for driving the drive assembly and the rotating assembly to work; the power component includes a drive motor 28, which is fixedly connected to the lower end face of the chassis 1. A drive shaft 26 is installed at the output end of the drive motor 28. A worm 29 that meshes with a worm gear 27 is provided on the drive shaft 26. A transmission pulley 25 is installed on both the connecting shaft of the long gear 33 and the end of the drive shaft 26. A second transmission belt 24 is installed between the two transmission pulleys 25. During operation, the drive motor 28 drives the worm 29 to rotate, the rotation of the worm 29 drives the worm gear 27 to rotate, and then the rotation of the drive shaft 26 drives the transmission pulleys 25 to rotate. The rotation of the transmission pulleys 25 drives the second transmission belt 24 to rotate, and the rotation of the second transmission belt 24 realizes the rotation of the long gear 30.

[0046] The working principle of this invention is as follows: During operation, the items to be disinfected are placed into the disinfection tank 3. Then, the drive assembly drives the central shaft 12 to rotate. The rotation of the central shaft 12 causes the disinfection tank 3 to switch. During the switching process, the side wheel 48 cooperates with the limit cam to lower the rotating disk 55. After the disinfection tank 3 rotates to the lower end face of the top platform 5, the second conical friction wheel 37 contacts the conical friction wheel 16 to transmit power, causing the rotating disk 55 to rotate. At the same time, the first transmission belt 15 continues to rotate. When the first transmission belt 15 rotates, the toggle block 57 first touches the second limit switch 20, and then touches the second limit switch 2... At 0 o'clock, the vacuum pump 6 starts first to evacuate the air inside the disinfection tank 3. Then, when it hits the third limit switch 21, it stops evacuating the air. At the same time, the metering valve 10 injects a certain amount of ethylene oxide into the disinfection tank 3. When the toggle block 57 touches the fourth limit switch 23, the exhaust pump 8 starts and drives the exhaust gas in the disinfection tank 3 to be discharged to the exhaust gas treatment device 9. After being purified by the exhaust gas treatment device 9, it is discharged, thus completing the disinfection of the items in the disinfection tank 3. After the toggle block 57 rotates once, it drives the rack 13 to store power again, and then drives the central shaft 12 to rotate to complete the switching of the disinfection tank 3, thus realizing the continuous operation of the sterilizer.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fully automatic ethylene oxide sterilizer, comprising a chassis (1), characterized in that: The upper side of the chassis (1) is provided with a top platform (5), and an extraction port (4) is opened on the upper surface of the chassis (1) near the top platform (5). A central shaft (12) is installed between the lower surface of the chassis (1) and the top platform (5). Disinfection barrels (3) are fixedly connected to both sides of the upper end of the central shaft (12). A drive assembly for driving the central shaft (12) to rotate intermittently is provided on the lower surface of the chassis (1). The disinfection tank (3) has a square shaft (17) slidably connected to the middle of the lower end face inside. The square shaft (17) has a side wheel (48) on one side. The machine box (1) has a limiting cam in the middle inside. The lower end of the limiting cam has a support frame fixed to the lower end face of the machine box (1). The square shaft (17) has an inner shaft (46) rotatably connected inside. The lower end of the inner shaft (46) is fixedly connected to a conical friction wheel (16). The upper end of the inner shaft (46) is fixedly connected to a rotating disk (55). The upper end face of the rotating disk (55) has several support rods (47). The machine box (1) has a rotating assembly on one side for driving the conical friction wheel (16) to rotate. The upper edge of the disinfection tank (3) is provided with a sealing ring that matches the lower edge of the top platform (5), and the upper end of the top platform (5) is provided with an adding component for adding ethylene oxide gas into the disinfection tank (3). The lower end face of the chassis (1) is also provided with a power component for driving the drive component and the rotating component to work; The drive assembly includes a bottom gear (56) at the lower end of the central shaft (12), an overrunning clutch inside the bottom gear (56), two slide rods (39) fixedly connected to the lower end face of the housing (1), a rack (13) slidably connected to the slide rods (39), push blocks (38) fixedly connected to both sides of one end of the rack (13), a second spring (19) passing through one end of the slide rod (39) and the rack (13), the rack (13) meshing with the bottom gear (56), a locking disc (31) fixedly connected to the lower end of the central shaft (12), notches (32) opened on both sides of the locking disc (31), a toggle assembly for driving the rack (13) to reciprocate, and a locking assembly for locking the locking disc (31) on the lower end face of the housing (1); The actuation assembly includes a power shaft (33), which is rotatably connected to both sides of the lower end face of the housing (1). Each of the two power shafts (33) has a pulley (22) installed at its upper end. A first transmission belt (15) is installed between the two pulleys (22). A toggle block (57) is fixedly connected to one side of the first transmission belt (15). A worm gear (27) is fixedly connected to the lower end of the power shaft (33) at the position where it passes through the housing (1). The lower end face of the housing (1) is also provided with a support stop (34) for supporting the first transmission belt (15). The lower end face of the chassis (1) near the first transmission belt (15) is also equipped with a second limit switch (20), a third limit switch (21), a fourth limit switch (23) and a first limit switch (18).

2. The fully automatic ethylene oxide sterilizer according to claim 1, characterized in that, The locking assembly includes a fixed base (52), which is located on the lower end face of the chassis (1) near the locking disc (31). A sliding rod (54) is slidably connected inside the fixed base (52). One end of the sliding rod (54) is provided with a locking head (53) for locking the locking disc (31) in cooperation with the notch (32). Several first springs (2) are threaded through the sliding rod (54). Several guide wheels (51) are also provided on the upper end face of the chassis (1). A support slide (50) is provided on the lower end face of the chassis (1) near the pulley (22). A sliding shaft (49) is slidably connected inside the support slide (50). A paddle (35) is fixedly connected to one end of the sliding shaft (49). A pull rope (36) is connected to the other end of the sliding shaft (49). The end of the pull rope (36) away from the sliding shaft (49) is connected to the sliding rod (54).

3. The fully automatic ethylene oxide sterilizer according to claim 2, characterized in that, The rotating assembly includes a fixed slide (41) which is fixedly connected to one side of the chassis (1). A sliding seat (40) is fixedly connected to one end of the fixed slide (41). A U-shaped slide is slidably connected inside the sliding seat (40). An installation shaft (45) is rotatably connected inside the U-shaped slide. A second conical friction wheel (37) for cooperating with a conical friction wheel (16) is installed at one end of the installation shaft (45). A transmission gear (44) is fixedly connected to the installation shaft (45). A sliding column (42) is slidably connected to the side of the fixed slide (41) away from the sliding seat (40). The sliding column (42) is fixedly connected to the U-shaped slide. A third spring (43) passes through the sliding column (42). A long gear (30) is provided on one side of the chassis (1) below the transmission gear (44).

4. The fully automatic ethylene oxide sterilizer according to claim 3, characterized in that, The power assembly includes a drive motor (28), which is fixedly connected to the lower end face of the housing (1). A drive shaft (26) is installed at the output end of the drive motor (28). A worm (29) meshing with a worm gear (27) is provided on the drive shaft (26). Both the connecting shaft of the long gear (30) and the end of the drive shaft (26) are equipped with transmission pulleys (25). A second transmission belt (24) is installed between the two transmission pulleys (25).

5. The fully automatic ethylene oxide sterilizer according to claim 1, characterized in that, The addition component includes an ethylene oxide storage tank (7), which is located on the upper surface of the top platform (5). The lower port of the ethylene oxide storage tank (7) is connected to the top platform (5) via a discharge pipe (11). A metering valve (10) is provided on the discharge pipe (11). The top platform (5) is also provided with a suction and discharge component for extracting and discharging gas from the disinfection tank (3).

6. The fully automatic ethylene oxide sterilizer according to claim 5, characterized in that, The exhaust assembly includes an exhaust pump (8), which is located on one side of the upper surface of the top platform (5). The input end of the exhaust pump (8) is connected to the top platform (5). The output end of the exhaust pump (8) is provided with a waste gas treatment device (9). The upper surface of the top platform (5) is also provided with a vacuum pump (6) for vacuuming.

7. The fully automatic ethylene oxide sterilizer according to claim 6, characterized in that, The lower end face of the chassis (1) is also provided with a controller, and the second limit switch (20), the third limit switch (21), the fourth limit switch (23), the first limit switch (18), the metering valve (10), the exhaust pump (8) and the vacuum pump (6) are all electrically connected to the controller.

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