Ethylene oxide sterilization device

Abstract

The utility model relates to the field of sterilization equipment, in particular to an ethylene oxide sterilization device which comprises a shell, a connecting pipe and a disinfection box, a gas storage box is arranged on the left side of the shell, the connecting pipe is communicated with the interior of the gas storage box, one end of the connecting pipe and a telescopic hose are integrally formed, and a gas nozzle is installed at the lower end of the telescopic hose. The utility model has the beneficial effects that the air tap is driven by the servo motor to enter the disinfection box, and the through groove is sealed by the sealing gasket, so that the leakage of ethylene oxide in the disinfection process is effectively prevented, and the safety of the disinfection environment is ensured; a dustproof filter screen and an activated carbon adsorption layer are arranged in the pretreatment box, so that air entering the disinfection box can be effectively filtered, impurities are reduced, and the service life of the equipment is prolonged while the disinfection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sterilization equipment technology, and in particular to an ethylene oxide sterilization device. Background Technology

[0002] Ethylene oxide is an organic compound and a toxic carcinogen. Previously used to manufacture disinfectants, it is flammable and explosive, making long-distance transportation difficult and thus highly regional. It is widely used in the detergent, pharmaceutical, and printing and dyeing industries. In chemical-related industries, it can be used as a starting agent for cleaning agents.

[0003] In related technologies, existing ethylene oxide sterilization devices cannot effectively and quickly treat the residues and exhaust gases on objects after sterilization, posing safety hazards. Therefore, we propose an ethylene oxide sterilization device.

[0004] The information disclosed in this background section is only for understanding the background technology of the inventive concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] The purpose of this invention is to provide an ethylene oxide sterilization device to solve the problem mentioned in the background art that existing ethylene oxide sterilization devices cannot quickly and effectively treat the residues and exhaust gases on objects after sterilization, thus posing safety hazards.

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

[0007] An ethylene oxide sterilization device includes a shell, a gas storage tank, a connecting pipe, and a sterilization chamber. The gas storage tank is installed on the left side of the shell, and a support plate is installed at the lower end of the gas storage tank. The support plate is detachably connected to the shell. The connecting pipe is connected to the interior of the gas storage tank, and an air pump is installed on the connecting pipe. One end of the connecting pipe is integrally formed with a telescopic flexible hose on the left side of the interior of the shell. An air nozzle is installed at the lower end of the telescopic flexible hose, and a sealing gasket is glued to the upper side of the air nozzle. A mounting plate is fixedly installed on the side of the air nozzle above the sealing gasket. A servo motor is fixedly installed above the mounting plate, and the lower movable end of the servo motor is connected to the mounting plate. The upper end of the mounting plate is connected and fixed. A guide plate is integrally formed on the side of the mounting plate. A guide rod is inserted through the guide plate. The upper end of the guide rod is connected and fixed to the upper inner wall of the outer shell. A disinfection box is installed inside the outer shell. Multiple sets of shelves are installed at intervals inside the disinfection box. The shelves have hollowed-out grooves. The left and right sides of the disinfection box are symmetrically welded with clamping plates. The left and right sides of the outer shell are welded with fixing plates at corresponding positions of the clamping plates. The clamping plates are locked in the clamping grooves inside the fixing plates. A pretreatment box is installed on the upper right side of the outer shell through a support plate. A waste gas storage box is installed on the lower right side of the outer shell through a support plate.

[0008] In some embodiments, an air inlet pipe is connected to the front end of the pretreatment box, and a shut-off valve is provided on the air inlet pipe. A dust filter and an activated carbon adsorption layer are provided inside the pretreatment box. A connecting pipe is connected to the upper end of the pretreatment box. One end of the connecting pipe is integrally formed with a telescopic flexible hose on the right side of the outer shell. The structure of the telescopic flexible hose is the same as that of the telescopic flexible hose on the left side.

[0009] In some embodiments, an exhaust pipe is connected to the left side of the exhaust gas storage box, and a shut-off valve is installed on the exhaust pipe. The upper end of the exhaust gas storage box is connected to a connecting pipe with an air intake fan installed on the connecting pipe. The left side of the connecting pipe is integrally formed with a telescopic flexible hose on the right side inside the outer casing.

[0010] In some embodiments, the front sealing clip of the disinfection box is provided with a cover plate, and mounting brackets are symmetrically arranged on the left and right sides of the disinfection box. A screw is rotatably provided at the front end of the mounting bracket, and guide rods are symmetrically arranged on the side of the screw.

[0011] In some embodiments, a pressure plate is threadedly engaged on the side of the screw, a guide rod is inserted through the pressure plate, a throttle is installed at the front end of the screw, and a fastening nut is fitted on the screw.

[0012] In some embodiments, the front end of the outer casing is provided with a cabinet door, the front end of the cabinet door is provided with a handle, the lower end of the outer casing is symmetrically provided with support blocks on the left and right sides, the rear end of the outer casing is provided with a controller, and the disinfection box is provided with a through groove at the corresponding position of the air nozzle.

[0013] The beneficial effects of this utility model are:

[0014] A servo motor drives the air nozzle into the disinfection chamber, and a sealing gasket seals the passageway, effectively preventing ethylene oxide leakage during disinfection and ensuring a safe disinfection environment. The pretreatment chamber is equipped with a dust filter and activated carbon adsorption layer, effectively filtering the air entering the disinfection chamber, reducing impurities, improving disinfection efficiency, and extending the equipment's lifespan. An exhaust gas storage tank temporarily stores the ethylene oxide waste gas generated during disinfection. Combined with the suction fan, this effectively reduces ethylene oxide emissions, minimizing environmental impact and ensuring operator safety. The overall structure is compact, with tight connections between components, facilitating transportation, installation, and daily maintenance. The position of the pressure plate is adjusted by rotating the handle on the screw to ensure a stable seal on the front cover of the disinfection chamber. Operation is simple and convenient. A cabinet door at the front of the outer shell facilitates the loading and unloading of the chamber to be disinfected. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an ethylene oxide sterilization device proposed in this utility model;

[0016] Figure 2 This is an internal structural diagram of an ethylene oxide sterilization device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the nozzle assembly structure of an ethylene oxide sterilization device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the pressure plate assembly structure of an ethylene oxide sterilization device proposed in this utility model.

[0019] In the diagram: 1 is the outer casing, 2 is the cabinet door, 3 is the air storage box, 4 is the support plate, 5 is the handle, 6 is the air pump, 7 is the connecting pipe, 8 is the servo motor, 9 is the suction fan, 10 is the pretreatment box, 11 is the exhaust gas storage box, 12 is the support block, 13 is the disinfection box, 14 is the fixing plate, 15 is the mounting plate, 16 is the guide rod, 17 is the guide plate, 18 is the telescopic hose, 19 is the sealing gasket, 20 is the air nozzle, 21 is the through groove, 22 is the clamping plate, 23 is the shelf, 24 is the pressure plate, 25 is the mounting bracket, 26 is the screw, 27 is the guide rod, and 28 is the throttle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1 , 23, 4, An ethylene oxide sterilization device includes an outer shell 1, a gas storage box 3, a connecting pipe 7, and a sterilization chamber 13. The gas storage box 3 is installed on the left side of the outer shell 1. A support plate 4 is installed at the lower end of the gas storage box 3. The support plate 4 is detachably connected to the outer shell 1. The connecting pipe 7 is connected to the inside of the gas storage box 3. An air pump 6 is installed on the connecting pipe 7. One end of the connecting pipe 7 is integrally formed with a telescopic hose 18 on the left side inside the outer shell 1. An air nozzle 20 is installed at the lower end of the telescopic hose 18. A sealing gasket 19 is glued to the upper side of the air nozzle 20. An installation plate 15 is fixedly installed on the side of the air nozzle 20 above the sealing gasket 19. A servo motor 8 is fixedly installed above the installation plate 15. The lower movable end of the servo motor 8 is connected and fixed to the upper end of the installation plate 15. A guide plate 17 is integrally formed on the side of the installation plate 15. A guide rod 16 is inserted through the guide plate 17. The upper end of the guide rod 16 is connected and fixed to the upper inner wall of the outer shell 1. A disinfection box 13 is installed inside the outer shell 1. Multiple sets of shelves 23 are installed at intervals inside the disinfection box 13. The shelves 23 have hollowed-out grooves. The left and right sides of the disinfection box 13 are symmetrically welded with card plates 22. The left and right sides of the outer shell 1 are welded with fixing plates 14 at the corresponding positions of the card plates 22. The card plates 22 are locked in the card slots inside the fixing plates 14. The upper right side of the outer shell 1 is equipped with a pretreatment box 10 through a support plate 4. The lower right side of the outer shell 1 is equipped with a waste gas storage box 11 through a support plate. The gas storage box 3 stores ethylene oxide. The gas pump 6 delivers ethylene oxide to the disinfection box 13 to disinfect the objects inside. The servo motor 8 drives the ethylene oxide nozzle 20 to enter the disinfection box 13 through the through groove 21. The sealing gasket 19 seals the through groove 21 to prevent ethylene oxide leakage.

[0024] In specific implementation of the embodiments of this utility model, such as Figure 1 , 3 As shown, the pretreatment box 10 is connected to an air inlet pipe at its front end, and a shut-off valve is installed on the air inlet pipe. The pretreatment box 10 is equipped with a dust filter and an activated carbon adsorption layer. The upper end of the pretreatment box 10 is connected to a connecting pipe 7, and an air pump 6 is installed on the connecting pipe 7. One end of the connecting pipe 7 is integrally formed with the telescopic flexible hose 18 on the right side inside the outer shell 1. The structure of the telescopic flexible hose 18 is the same as that of the telescopic flexible hose 18 on the left side. The air entering the disinfection box is filtered through the pretreatment box 10 to reduce impurities. After disinfection, the supply of ethylene oxide is stopped, and air is supplied to the inside to clean the ethylene oxide in the disinfection box 13 and reduce the residue of ethylene oxide.

[0025] In specific implementation of the embodiments of this utility model, such as Figure 1 , 2As shown, an exhaust pipe is connected to the left side of the exhaust gas storage box 11, and a shut-off valve is installed on the exhaust pipe. The upper end of the exhaust gas storage box 11 is connected to a connecting pipe 7, and an air intake fan 9 is installed on the connecting pipe 7. The left side of the connecting pipe 7 is integrally formed with the telescopic flexible hose 18 inside the right side of the outer shell 1. The front end of the disinfection box 13 is sealed with a cover plate. The left and right sides of the disinfection box 13 are symmetrically provided with mounting brackets 25. The front end of the mounting bracket 25 is rotatably provided with a screw 26, and the side of the screw 26 is symmetrically provided with guide rods 27. The exhaust gas storage box 11 temporarily stores the gas in the disinfection box 13 to prevent the leakage of ethylene oxide.

[0026] In specific implementation of the embodiments of this utility model, such as Figure 1 , 4 As shown, a pressure plate 24 is threadedly engaged on the side of the screw 26, and a guide rod 27 is inserted through the pressure plate 24. A throttle 28 is installed at the front end of the screw 26, and a fastening nut is fitted on the screw 26. A cabinet door 2 is installed at the front end of the outer shell 1, and a handle 5 is installed at the front end of the cabinet door 2. Support blocks 12 are symmetrically arranged on the left and right sides of the lower end of the outer shell 1. A controller is installed at the rear end of the outer shell 1. A through groove 21 is opened at the corresponding position of the air nozzle 20 in the disinfection box 13. The pressure plate 24 ensures the sealing stability of the cover plate at the front end of the disinfection box 13.

[0027] In this embodiment, all components are general standard parts or parts known to those skilled in the art. Their structures and connection principles can be obtained by those skilled in the art through technical manuals or conventional experimental methods. The items to be disinfected are placed on the shelf 23 inside the disinfection box 13. The cover is closed, and the pressure plate 24 is pressed tightly against the cover by rotating the handle 28 at the front end of the screw 26, ensuring a good seal at the front end of the disinfection box 13. The shut-off valve on the air inlet pipe at the front end of the pretreatment box 10 is opened, allowing external air to enter the pretreatment box 10 through the air inlet pipe. The dust filter and activated carbon adsorption layer inside the pretreatment box 10 filter the air, removing dust and impurities. The filtered clean air is then delivered to the disinfection box 13 via the connecting pipe 7 and air pump 6 at the top of the pretreatment box 10, preparing a clean environment for the subsequent disinfection process. Ethylene oxide gas in the gas storage box 3 is delivered to the telescopic hose 18 on the left side inside the outer casing 1 via the air pump 6 on the connecting pipe 7. The servo motor 8 starts, driving the air nozzle 20 at the bottom of the telescopic hose 8 to enter the disinfection box 13 through the through-slot 21. The air nozzle 20... The sealing gasket 19 contacts the through groove 21 to form a seal, preventing ethylene oxide gas leakage. The ethylene oxide gas diffuses within the disinfection chamber 13, thoroughly disinfecting items placed on the shelf 23. After disinfection, the gas supply from the gas storage box 3 to the disinfection chamber 13 is closed, stopping the delivery of ethylene oxide. Filtered clean air is then supplied to the disinfection chamber 13 again through the pretreatment box 10 to dilute and remove the ethylene oxide gas, reducing residue. The waste gas storage box 11 extracts the waste gas from the disinfection chamber 13 through its upper connecting pipe 7 and suction fan 9. The gas inside is temporarily stored in the exhaust gas storage box 11 to prevent ethylene oxide from being directly emitted into the environment. The gas in the exhaust gas storage box 11 can be discharged through the exhaust pipe on the left side. The shut-off valve installed on the exhaust pipe is used to control the gas emission. The discharged gas may need further treatment, such as removing ethylene oxide through chemical reactions or physical methods, to meet environmental protection requirements. After confirming that the ethylene oxide concentration in the disinfection box has dropped to a safe level, open the cabinet door 2 and take out the disinfected items. Clean the inside of the disinfection box 13 to prepare for the next use.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ethylene oxide sterilization device comprising a housing (1), a gas storage tank (3), a connecting pipe (7) and a sterilization tank (13), characterized in that: An air storage box (3) is installed on the left side of the outer shell (1). A support plate (4) is installed at the lower end of the air storage box (3). The support plate (4) is detachably connected to the outer shell (1). A connecting pipe (7) is connected to the inside of the air storage box (3). An air pump (6) is installed on the connecting pipe (7). One end of the connecting pipe (7) is integrally formed with a telescopic hose (18) on the left side of the inside of the outer shell (1). An air nozzle (20) is installed at the lower end of the telescopic hose (18). A sealing gasket (19) is glued to the upper side of the air nozzle (20). An installation plate (15) is fixedly installed on the side of the air nozzle (20) above the sealing gasket (19). A servo motor (8) is fixedly installed above the installation plate (15). The lower movable end of the servo motor (8) is connected and fixed to the upper end of the installation plate (15). The side of the shell (1) is integrally formed with a guide plate (17), and a guide rod (16) is installed through the guide plate (17). The upper end of the guide rod (16) is connected and fixed to the upper inner wall of the shell (1). A disinfection box (13) is installed inside the shell (1). Multiple sets of shelves (23) are installed at intervals inside the disinfection box (13). The shelves (23) have hollow grooves. The left and right sides of the disinfection box (13) are symmetrically welded with a card plate (22). The left and right sides of the shell (1) are welded with a fixing plate (14) at the corresponding position of the card plate (22). The card plate (22) is locked in the card groove inside the fixing plate (14). The upper right side of the shell (1) is installed with a pretreatment box (10) through a support plate (4). The lower right side of the shell (1) is installed with a waste gas storage box (11) through a support plate (4).

2. An ethylene oxide sterilization apparatus as defined in claim 1, wherein, The pretreatment box (10) is connected to an air inlet pipe at its front end. A shut-off valve is installed on the air inlet pipe. The pretreatment box (10) is equipped with a dust filter and an activated carbon adsorption layer inside. The pretreatment box (10) is connected to a connecting pipe (7) at its upper end. One end of the connecting pipe (7) is integrally formed with the telescopic hose (18) on the right side inside the outer shell (1). The structure of the telescopic hose (18) is the same as that of the telescopic hose (18) on the left side.

3. An ethylene oxide sterilization apparatus as defined in claim 1, wherein, An exhaust pipe is connected to the left side of the exhaust gas storage box (11), and a shut-off valve is installed on the exhaust pipe. The upper end of the exhaust gas storage box (11) is connected to the same connecting pipe (7), and an air intake fan (9) is installed on the connecting pipe (7). The left side of the connecting pipe (7) is integrally formed with the telescopic flexible hose (18) on the right side inside the outer shell (1).

4. An ethylene oxide sterilization apparatus as defined in claim 1, wherein, The front sealing clip of the disinfection box (13) is provided with a cover plate. The left and right sides of the disinfection box (13) are symmetrically provided with mounting brackets (25). The front end of the mounting bracket (25) is rotatably provided with a screw (26). The side of the screw (26) is symmetrically provided with guide rods (27).

5. An ethylene oxide sterilization apparatus as defined in claim 4, wherein, A pressure plate (24) is threadedly engaged on the side of the screw (26), a guide rod (27) is inserted through the pressure plate (24), a throttle (28) is installed at the front end of the screw (26), and a fastening nut is provided on the screw (26).

6. An ethylene oxide sterilization apparatus as defined in claim 1, wherein, The front end of the outer shell (1) is provided with a cabinet door (2), the front end of the cabinet door (2) is provided with a handle (5), the lower end of the outer shell (1) is symmetrically provided with support blocks (12) on the left and right sides, the rear end of the outer shell (1) is provided with a controller, and the disinfection box (13) has a through groove (21) at the corresponding position of the air nozzle (20).

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