Ethylene oxide sterilization device with gas purification function

Abstract

The utility model discloses an ethylene oxide sterilization device with a gas purification function. The ethylene oxide sterilization device comprises a sterilization box, two air-tight doors are arranged on the front side of the sterilization box, an oxygen delivery pipe and a gas inlet pipe are arranged on one side of the sterilization box, a gas purification assembly is arranged on the other side of the sterilization box, and two blocking mechanisms are arranged on the sterilization box. Through the cooperative use of the sterilization box, the open grooves, the baffle plates, the sealing plate, the suction fan, the scraping plate, the spray head and other structures, ethylene oxide can be conveyed among the four baffle plates for sterilization work, and after sterilization is completed and gas in the sterilization box is purified, the four baffle plates are rotated into the corresponding open grooves, so that the sterilization box is convenient to use. The contact surfaces of the four baffles and ethylene oxide, the contact surface of the inner wall of the sterilization box and the back surface of the air-tight door are cleaned, ethylene oxide residues are prevented, cross contamination in the sterilization box is avoided, and the cleanliness of the interior of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ethylene oxide sterilization, in particular to an ethylene oxide sterilization device with a gas purification function. Background Art

[0002] Ethylene oxide is an organic compound with the chemical formula C2H4O. It is a toxic carcinogen and was previously used to manufacture fungicides. Ethylene oxide is flammable, explosive, and not easy to transport over long distances, so it has strong regionality. It is widely used in industries such as washing, pharmaceuticals, and printing and dyeing. In the chemical-related industries, it can be used as the starting agent for cleaners.

[0003] For example, the utility model patent with the application number 202322360505.6 discloses an ethylene oxide sterilization device that is easy to clean, including a sterilization chamber. A first sliding groove is provided on one side of the sterilization chamber. A driving mechanism is arranged in the first sliding groove. A first slider and a second slider are slidably installed in the first sliding groove. Cleaning rollers are fixedly installed on both the first slider and the second slider. The two cleaning rollers are in contact with three side walls of the sterilization chamber. By setting two cleaning rollers in the utility model, the two cleaning rollers can approach or move away from each other to clean the three side walls of the sterilization chamber, eliminating the need for manual cleaning, improving the cleaning efficiency of the sterilization chamber, and making the cleaning more convenient. By setting a first installation frame and a first filter screen, items can be placed on it for sterilization. After use, the first installation frame can be directly pulled out by pulling the third handle and then cleaned.

[0004] Although the device in the above patent can automatically clean the sterilization chamber by the two cleaning rollers approaching or moving away from each other, in actual use, after adding ethylene oxide into the sterilization chamber for sterilization work, the cleaning rollers cannot clean the top and bottom inner walls of the device. At the same time, the cleaning rollers in the device are arranged inside the sterilization chamber. After the sterilization work is carried out inside the device, there is also likely to be some ethylene oxide residue on the cleaning rollers, which is likely to cause cross-contamination inside the sterilization chamber and affect the cleanliness inside the device. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies in the prior art and propose an ethylene oxide sterilization device with a gas purification function.

[0006] To achieve the above object, the utility model adopts the following technical solutions: An ethylene oxide sterilization device with a gas purification function, including a sterilization chamber, two airtight doors are arranged on the front of the sterilization chamber, an oxygen delivery pipe and an air inlet pipe are arranged on one side of the sterilization chamber, a gas purification component is arranged on the other side of the sterilization chamber, two blocking mechanisms are arranged on the sterilization chamber, the two blocking mechanisms are arranged up and down, the blocking mechanism includes two slots, a driving component and a transmission component, the two slots are respectively opened on the front and back of the inner wall of the sterilization chamber, a baffle is rotatably connected inside each of the two slots, a sealing plate is arranged on each of the two baffles, the slots are adapted to the baffles and the sealing plates, rubber blocks are embedded inside each of the two slots, and a cleaning component is arranged on the sterilization chamber.

[0007] As a further description of the above technical solution:

[0008] The bottom of the sterilization chamber is fixedly communicated with a collection box.

[0009] As a further description of the above technical solution:

[0010] The driving component includes a motor, the motor is fixedly installed on one side of the sterilization chamber, and the output end of the motor is fixedly connected to one side of one of the baffles.

[0011] As a further description of the above technical solution:

[0012] The transmission component includes a rotating shaft, two belt pulleys and two gears, the rotating shaft is rotatably connected to one side of the sterilization chamber, one of the belt pulleys is arranged on one of the baffles, the other belt pulley is fixedly sleeved on the outer surface of the rotating shaft, a belt is connected in transmission between the outer surfaces of the two belt pulleys, the two gears are respectively arranged on the rotating shaft and the other baffle, the two gears are meshed with each other, and the baffle is hermetically and rotatably connected to the sterilization chamber.

[0013] As a further description of the above technical solution:

[0014] The gas purification component includes a purification box, one side of the purification box is connected to the sterilization chamber through a connecting pipe, an air suction fan is arranged on the other side of the purification box, and an activated carbon filter plate is arranged inside the purification box.

[0015] As a further description of the above technical solution:

[0016] Electrically controlled airtight valves are arranged on both the connecting pipe and the air inlet pipe.

[0017] As a further description of the above technical solution:

[0018] The cleaning component includes a cylinder. A connecting frame is fixedly connected to the telescopic end of the cylinder. A circle of scraping plates is arranged on the connecting frame. The scraping plates are square and are in contact with the inner wall of the sterilization box. A circular pipe is fixedly connected to the bottom of the connecting frame. A plurality of nozzles are arranged on the outer surface of the circular pipe. The top of the circular pipe is fixedly communicated with a flexible pipe, and the flexible pipe movably penetrates through the connecting frame and the sterilization box.

[0019] The utility model has the following beneficial effects:

[0020] 1. Compared with the prior art, the ethylene oxide sterilization device with gas purification function can transport ethylene oxide between four partition plates for sterilization work through the cooperation of structures such as a sterilization box, a slotted opening, a partition plate, a sealing plate, a suction fan, a scraping plate and a nozzle. After the sterilization is completed and the gas in the sterilization box is purified, the four partition plates are rotated into the corresponding slotted openings to clean the contact surfaces of the four partition plates with ethylene oxide, the inner wall contact surfaces of the sterilization box and the back surface of the airtight door, preventing the residue of ethylene oxide and avoiding cross-contamination inside the sterilization box, thereby improving the cleanliness inside the device.

[0021] 2. Compared with the prior art, the ethylene oxide sterilization device with gas purification function can purify and filter the used ethylene oxide and then discharge it into the air through the cooperation of structures such as a sterilization box, an airtight door, an air inlet pipe, a purification box, a connecting pipe, a suction fan, an activated carbon filter plate and an electric airtight valve, avoiding the direct discharge of unpurified ethylene oxide and polluting the working environment. Description of the Drawings

[0022] Figure 1 is a three-dimensional schematic diagram of the overall structure of an ethylene oxide sterilization device with gas purification function proposed by the utility model;

[0023] Figure 2 is Figure 1 the enlarged view at A in

[0024] Figure 3 is a schematic diagram of structures such as an oxygen delivery pipe and an air inlet pipe of an ethylene oxide sterilization device with gas purification function proposed by the utility model;

[0025] Figure 4 is a schematic diagram of structures such as a slotted opening and a sealing plate of an ethylene oxide sterilization device with gas purification function proposed by the utility model;

[0026] Figure 5 is Figure 4 the enlarged view at B in

[0027] Figure 6 is a schematic diagram of structures such as a scraping plate and a circular pipe of an ethylene oxide sterilization device with gas purification function proposed by the utility model.

[0028] Legend Explanation:

[0029] 1. Sterilization Chamber; 2. Sealed Door; 3. Oxygen Delivery Pipe; 4. Intake Pipe; 5. Groove; 6. Partition Board; 7. Sealing Plate; 8. Rubber Block; 9. Collection Box; 10. Motor; 11. Rotating Shaft; 12. Pulley; 13. Gear; 14. Belt; 15. Purification Chamber; 16. Connecting Pipe; 17. Suction Fan; 18. Activated Carbon Filter Plate; 19. Electric Sealed Valve; 20. Cylinder; 21. Connecting Frame; 22. Scraper; 23. Annular Pipe; 24. Sprayer; 25. Hose. Detailed Implementation Manner

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Referring to Figures 1-6 , an ethylene oxide sterilization device with a gas purification function provided by the present utility model includes a sterilization chamber 1. A collection box 9 is fixedly communicated with the bottom of the sterilization chamber 1. Two sealed doors 2 are arranged on the front surface of the sterilization chamber 1. An oxygen delivery pipe 3 and an intake pipe 4 are arranged on one side of the sterilization chamber 1. A gas purification assembly is arranged on the other side of the sterilization chamber 1. Two blocking mechanisms are arranged on the sterilization chamber 1. The blocking mechanisms include two grooves 5, a driving assembly and a transmission assembly. The two grooves 5 are respectively opened on the front and back inner walls of the sterilization chamber 1. A partition board 6 is rotatably connected to the inside of each of the two grooves 5. A sealing plate 7 is arranged on each of the two partition boards 6. The grooves 5 are adapted to the partition boards 6 and the sealing plates 7. When the motor 10 is started and the partition boards 6 and the sealing plates 7 are rotated into the corresponding grooves 5, the partition boards 6 and the sealing plates 7 are flush with the inner wall of the sterilization chamber 1. Rubber blocks 8 are embedded in the inside of each of the two grooves 5. A cleaning assembly is arranged on the sterilization chamber 1. Through the coordinated use of structures such as the sterilization chamber 1, the grooves 5, the partition boards 6, the sealing plates 7, the suction fan 17, the scraper 22 and the sprayer 24, ethylene oxide can be conveyed between the four partition boards 6 for sterilization work. After the sterilization is completed and the gas in the sterilization chamber 1 is purified, the four partition boards 6 are rotated into the corresponding grooves 5 to clean the contact surfaces of the four partition boards 6 with ethylene oxide, the contact surfaces of the inner wall of the sterilization chamber 1 and the back surface of the sealed door 2, preventing the residue of ethylene oxide and avoiding cross-contamination inside the sterilization chamber 1, thereby improving the cleanliness inside the device.

[0032] The driving component includes a motor 10, which is fixedly installed on one side of the sterilization chamber 1, and the output end of the motor 10 is fixedly connected to one side of one of the partition plates 6.

[0033] The transmission component includes a rotating shaft 11, two belt pulleys 12 and two gears 13. The rotating shaft 11 is rotatably connected to one side of the sterilization chamber 1. One of the belt pulleys 12 is arranged on one of the partition plates 6, and the other belt pulley 12 is fixedly sleeved on the outer surface of the rotating shaft 11. A belt 14 is drivingly connected between the outer surfaces of the two belt pulleys 12. The two gears 13 are respectively arranged on the rotating shaft 11 and the other partition plate 6, and the two gears 13 are meshed with each other.

[0034] The gas purification component includes a purification box 15. One side of the purification box 15 is communicated with the sterilization chamber 1 through a connecting pipe 16. Electrically controlled shut-off valves 19 are arranged on both the connecting pipe 16 and the air inlet pipe 4. Through the cooperation of the electrically controlled shut-off valves 19, the sealing plate 7 and the rubber block 8, when using ethylene oxide for sterilization work, the ethylene oxide can be intercepted between the four partition plates 6 to prevent it from diffusing and polluting other structures inside the sterilization chamber 1. An air suction fan 17 is arranged on the other side of the purification box 15, and an activated carbon filter plate 18 is arranged inside the purification box 15.

[0035] The cleaning component includes a cylinder 20. The telescopic end of the cylinder 20 is fixedly connected with a connecting frame 21. A circle of scraping plates 22 is arranged on the connecting frame 21. The bottom of the connecting frame 21 is fixedly connected with an annular pipe 23. A plurality of spray heads 24 are arranged on the outer surface of the annular pipe 23. The top of the annular pipe 23 is fixedly communicated with a flexible pipe 25. Through the arrangement of the cleaning component, after the four partition plates 6 and the sealing plate 7 are rotated into the corresponding slots 5, the inner wall of the sterilization chamber 1, the contact surfaces of the four partition plates 6 with ethylene oxide and the back surface of the sealing door 2 can be flushed and cleaned, thereby preventing the residue of ethylene oxide and the cleaning liquid.

[0036] Working principle: During operation, the sealing door 2 is opened, and the object to be sterilized is placed on the two partition plates 6 below. Then, through the oxygen delivery pipe 3, ethylene oxide is delivered between the four partition plates 6 to carry out the sterilization work on the object. After the sterilization work is completed, the air suction fan 17 and the two electrically controlled shut-off valves 19 are started simultaneously. When the air suction fan 17 is started, under the combined action of the purification box 15 and the connecting pipe 16, the air suction end thereof extracts the ethylene oxide inside the sterilization chamber 1 into the purification box 15, and the activated carbon filter plate 18 purifies and filters it and then discharges it. Then, after the ethylene oxide inside the sterilization chamber 1 is purified and filtered, the sealing door 2 is opened to take out the sterilized object;

[0037] After the sterilized object is taken out, the closed door 2 is closed again, and then two motors 10 are started to drive the corresponding one of the baffle plates 6, the sealing plate 7 and one of the pulleys 12 to rotate respectively. Under the driving action of the belt 14, the other pulley 12 drives the rotating shaft 11 and one of the gears 13 to rotate. The gear 13 drives the other meshing gear 13 to rotate, so that the other baffle plate 6 rotates synchronously and reversely. Then the corresponding two baffle plates 6 and the sealing plate 7 can be rotated into the corresponding slots 5. Through the hose 25, under the action of an external pump, the cleaning liquid can be conveyed to the annular pipe 23 and sprayed out from a plurality of nozzles 24, so as to wash the inside of the sterilization chamber 1. At the same time, the cylinder 20 is started to drive the connecting frame 21, the annular pipe 23, the nozzles 24 and the scraper 22 to move down synchronously. During the process of the nozzles 24 washing the inner wall of the sterilization chamber 1, the contact surfaces of the four baffle plates 6 with ethylene oxide and the back of the closed door 2, the scraper 22 can further clean them and prevent the residue of the cleaning liquid. The used cleaning liquid can converge inside the collection box 9 under the action of gravity.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ethylene oxide sterilization device with a gas purification function, comprising a sterilization box (1), characterized in that: The front of the sterilization box (1) is provided with two sealed doors (2), one side of the sterilization box (1) is provided with an oxygen supply pipe (3) and an air inlet pipe (4), the other side of the sterilization box (1) is provided with a gas purification component, the sterilization box (1) is provided with two blocking mechanisms, the blocking mechanisms include two slots (5), a drive component and a transmission component, the two slots (5) are respectively provided on the front and back of the inner wall of the sterilization box (1), the insides of the two slots (5) are rotatably connected with blocking plates (6), the two blocking plates (6) are provided with sealing plates (7), the insides of the two slots (5) are embedded with rubber blocks (8), and the sterilization box (1) is provided with a cleaning component.

2. The ethylene oxide sterilization device with gas purification function according to claim 1, characterized in that: The bottom of the sterilization box (1) is fixedly connected to a collection box (9).

3. The ethylene oxide sterilization device with gas purification function according to claim 1, characterized in that: The driving assembly comprises a motor (10), the motor (10) is fixedly mounted on one side of the sterilization box (1), and the output end of the motor (10) is fixedly connected to one side of one of the baffle plates (6).

4. The ethylene oxide sterilization device with gas purification function according to claim 1, characterized in that: The transmission assembly comprises a rotating shaft (11), two pulleys (12) and two gears (13); the rotating shaft (11) is rotatably connected to one side of the sterilization box (1); one of the pulleys (12) is arranged on one of the baffle plates (6); the other pulley (12) is fixedly sleeved on the outer surface of the rotating shaft (11); a belt (14) is transmission-connected between the outer surfaces of the two pulleys (12); the two gears (13) are respectively arranged on the rotating shaft (11) and the other baffle plate (6); and the two gears (13) are meshed with each other.

5. The ethylene oxide sterilization device with gas purification function according to claim 1, characterized in that: The gas purification component comprises a purification box (15), one side of the purification box (15) is connected to the sterilization box (1) via a connecting pipe (16), the other side of the purification box (15) is provided with a suction fan (17), and the interior of the purification box (15) is provided with an activated carbon filter plate (18).

6. The ethylene oxide sterilization device with gas purification function according to claim 5, characterized in that: The connecting pipe (16) and the air inlet pipe (4) are both provided with electric sealing valves (19).

7. The ethylene oxide sterilization device with gas purification function according to claim 1, characterized in that: The cleaning assembly comprises a cylinder (20), the telescopic end of the cylinder (20) is fixedly connected to a connecting frame (21), a circle of scrapers (22) are arranged on the connecting frame (21), an annular tube (23) is fixedly connected to the bottom of the connecting frame (21), a plurality of nozzles (24) are arranged on the outer surface of the annular tube (23), and a hose (25) is fixedly connected to the top of the annular tube (23).

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