Ethylene oxide sterilizer sterilant injection device

Abstract

The utility model discloses an ethylene oxide sterilizer sterilizing agent injection device, including secondary vaporizer, its characterized in that: the bottom of secondary vaporizer is provided with the discharge pipe, the lower extreme of discharge pipe is fixed to the top of fixed frame, and the top in fixed frame and the lower extreme of discharge pipe are mutually flush, rotates the handle, and handle drives piston and screw rod to rotate, and make piston and screw rod move to left side, and screw rod drives indicating block to move to left side simultaneously, when the tip of indicating block top points the scale value on the scale on the scale and the storage of ethylene oxide sterilizer are equal, stop rotating handle, through the starting cylinder, make the ethylene oxide sterilizing agent enter the inside of the right side of piston in quantitative cavity, discharge port and adjusting cavity, finally discharge through the discharge pipe, thereby can complete to the different size of ethylene oxide sterilizer injection quantitative ethylene oxide sterilizing agent, has promoted the versatility of device.

Description

Technical Field

[0001] This utility model relates to the field of ethylene oxide sterilizing agent injection technology, specifically an ethylene oxide sterilizer sterilizing agent injection device. Background Technology

[0002] Ethylene oxide is a broad-spectrum sterilizing agent capable of killing various microorganisms, including vegetative bacteria, spores, fungi, and viruses. Its sterilization principle involves alkylation reactions with proteins and nucleic acids within microbial cells, hindering their metabolism and causing their death. Ethylene oxide needs to be injected into the ethylene oxide sterilizer using an injection device.

[0003] However, existing ethylene oxide sterilizer injection devices have significant shortcomings when used in conjunction with the aforementioned two-stage vaporization injection process. Some devices have limited stability and flow control capabilities for the delivery of vaporized gas, making it difficult to precisely control the injection volume and adapt to different sterilizer specifications and volumes, resulting in low versatility. Utility Model Content

[0004] The purpose of this invention is to provide a sterilizing agent injection device for an ethylene oxide sterilizer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ethylene oxide sterilizer sterilizer injection device, comprising a two-stage vaporizer, characterized in that: a discharge pipe is provided at the bottom of the two-stage vaporizer, the lower end of the discharge pipe is fixed to the top of a fixed frame, and the top of the fixed frame is flush with the lower end of the discharge pipe; a movable block is slidably arranged inside the fixed frame, and a metering cavity is opened inside the movable block, the metering cavity being designed as a rectangular structure; the top of the metering cavity is connected to the lower end of the discharge pipe; a discharge port is provided at the bottom of the metering cavity; a cylinder is fixedly installed through one side of the fixed frame, the end of the cylinder being fixedly connected to the middle of the outer side of the movable block; an adjustment cavity is provided at the bottom of one side of the metering cavity, and an ethylene oxide sterilizer storage quantity adjustment mechanism is provided inside the adjustment cavity, and a measuring mechanism is provided on the ethylene oxide sterilizer storage quantity adjustment mechanism.

[0006] The ethylene oxide sterilizing agent storage quantity adjustment mechanism includes a piston, a piston is slidably disposed inside the adjustment chamber, a lead screw is fixed to the middle of one side of the piston, and a handle is fixed to the end of the lead screw through the side wall of the movable block. The lead screw and the movable block are threadedly connected.

[0007] The measuring mechanism includes a movable ring. The movable ring is rotatably mounted on the outer side of the lead screw outside the movable block. A limit block is fixed on the inner side of the movable ring. The limit block is slidably installed inside the limit annular groove, which is located on the outer side of the lead screw. A first movable rod is fixed to the outer wall of the movable ring. A second movable rod is fixed to the end of the first movable rod. The second movable rod is slidably installed inside the guide groove, which is located on the outer side of the fixed frame. An indicator block is fixed to the top of the second movable rod outside the fixed frame. A scale is provided above the indicator block outside the fixed frame. A scale is also provided on the outer side of the fixed frame.

[0008] A discharge pipe is fixed through the bottom of the fixed frame, and the upper end of the discharge pipe is flush with the bottom of the fixed frame. After the right side of the movable block is attached to the right side of the fixed frame, the lower end of the discharge port coincides with the upper end of the discharge pipe.

[0009] The top and bottom of the movable block are coated with sealing paint, and the top and bottom of the movable block are in contact with the top and bottom of the fixed frame.

[0010] The right side of the piston is flush with the right side of the adjusting chamber, and the right side of the adjusting chamber is flush with the right side of the scale. The tip of the top of the indicator block is flush with the right side of the scale, and the value corresponding to the right scale line of the scale is the sum of the storage volume of the metering chamber and the discharge port.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By aligning the right side of the piston with the right side of the adjusting chamber, and the right side of the adjusting chamber with the right side of the scale, and with the tip of the indicator block aligned with the right side of the scale, and ensuring that the value corresponding to the right-side graduation on the scale represents the total amount stored in the metering chamber and the outlet, the indicator block, when moved to the left, will point to the scale value on the scale representing the total amount stored in the metering chamber, the outlet, and the adjusting chamber located to the right of the piston. This achieves the goal of quantitatively dispensing ethylene oxide sterilizing agent. Rotating the handle causes the piston and lead screw to rotate, moving them to the left. Simultaneously, the lead screw moves the indicator block to the left. When the tip of the indicator block points to the scale value, matching the storage capacity of the ethylene oxide sterilizer, stop rotating the handle. Activating the cylinder allows the ethylene oxide sterilizer to enter the metering chamber, the outlet, and the regulating chamber located to the right of the piston. Finally, it is discharged through the discharge pipe. This allows for the injection of a precise quantity of ethylene oxide sterilizer into sterilizers of different sizes, improving the device's versatility. After secondary vaporization, ethylene oxide can effectively and completely convert liquid EO into gas, ensuring the sterility level of the product after sterilization. Secondary vaporization can avoid the risks of incomplete vaporization leading to product contamination by liquid ethylene oxide, increased residues, and failure to meet sterilization standards. Attached Figure Description

[0012] Figure 1 This is a frontal cross-sectional view of the aligned discharge pipe and metering chamber of an ethylene oxide sterilizer sterilizer sterilizer agent injection device. Figure 2 A sterilizing agent injection device for an ethylene oxide sterilizer Figure 1 Enlarged view of point A in the middle; Figure 3 This is a frontal cross-sectional view of the aligned outlet and discharge pipe of an ethylene oxide sterilizer sterilizer's sterilizing agent injection device. Figure 4 A frontal external view of a sterilizing agent injection device for an ethylene oxide sterilizer; Figure 5 This is a side cross-sectional view of the movable block of a sterilizing agent injection device in an ethylene oxide sterilizer. Figure 6 This is a side view sectional diagram of the installation of a limiting block for an ethylene oxide sterilizer's sterilizing agent injection device. Figure 7 This is a schematic diagram of the ethylene oxide injection process in an ethylene oxide sterilizer sterilizer sterilizer injection device.

[0013] In the diagram: 1. Secondary vaporizer; 2. Discharge pipe; 3. Fixed frame; 4. Movable block; 5. Metering chamber; 6. Discharge port; 7. Cylinder; 8. Adjustment chamber; 9. Piston; 10. Lead screw; 11. Handle; 12. Movable ring; 13. Limiting block; 14. Limiting annular groove; 15. First movable rod; 16. Second movable rod; 17. Guide groove; 18. Indicator block; 19. Scale; 20. Discharge pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-6In this embodiment of the present invention, an ethylene oxide sterilizer sterilizer injection device includes a two-stage vaporizer 1. The device is characterized in that: a discharge pipe 2 is provided at the bottom of the two-stage vaporizer 1; the lower end of the discharge pipe 2 is fixed to the top of a fixed frame 3, and the top of the fixed frame 3 is flush with the lower end of the discharge pipe 2; a movable block 4 is slidably arranged inside the fixed frame 3; a metering cavity 5 is opened inside the movable block 4; the metering cavity 5 is designed as a rectangular structure; the top of the metering cavity 5 is connected to the lower end of the discharge pipe 2; a discharge port 6 is provided at the bottom of the metering cavity 5; a cylinder 7 is fixedly connected to one side of the fixed frame 3; the end of the cylinder 7 is fixedly connected to the middle of the outer side of the movable block 4; an adjustment cavity 8 is provided at the bottom of one side of the metering cavity 5; an ethylene oxide sterilizer storage quantity adjustment mechanism is provided inside the adjustment cavity 8; and a measuring mechanism is provided on the ethylene oxide sterilizer storage quantity adjustment mechanism.

[0016] The ethylene oxide sterilizing agent storage quantity adjustment mechanism includes a piston 9. The piston 9 is slidably arranged inside the adjustment chamber 8. A lead screw 10 is fixed in the middle of one side of the piston 9. The end of the lead screw 10 passes through the side wall of the movable block 4 and is fixed with a handle 11. The lead screw 10 and the movable block 4 are threadedly connected.

[0017] The measuring mechanism includes a movable ring 12. The movable ring 12 is rotatably mounted on the outer side of the lead screw 10 outside the movable block 4. A limit block 13 is fixed on the inner side of the movable ring 12. The limit block 13 is slidably installed inside the limit annular groove 14. The limit annular groove 14 is opened on the outer side of the lead screw 10. A first movable rod 15 is fixed on the outer wall of the movable ring 12. A second movable rod 16 is fixed at the end of the first movable rod 15. The second movable rod 16 is slidably installed inside the guide groove 17. The guide groove 17 is opened on the outer side of the fixed frame 3. An indicator block 18 is fixed on the top of the second movable rod 16 outside the fixed frame 3. A scale 19 is set above the indicator block 18 outside the fixed frame 3. A scale 19 is set on the outer side of the fixed frame 3.

[0018] A discharge pipe 20 is fixedly installed through the bottom of the fixed frame 3, and the upper end of the discharge pipe 20 is flush with the bottom of the fixed frame 3. After the right side of the movable block 4 is in contact with the right side of the fixed frame 3, the lower end of the discharge port 6 coincides with the upper end of the discharge pipe 20. This ensures that after the right side of the movable block 4 is in contact with the right side of the fixed frame 3, the ethylene oxide sterilizing agent located inside the right side of the piston 9 in the metering chamber 5, the discharge port 6, and the adjusting chamber 8 can enter the interior of the ethylene oxide sterilizer through the discharge pipe 20.

[0019] The top and bottom of the movable block 4 are coated with sealing paint, and the top and bottom of the movable block 4 are in close contact with the top and bottom of the fixed frame 3, which increases the sealing of the connection between the fixed frame 3 and the movable block 4 and prevents leakage.

[0020] The right side of piston 9 is flush with the right side of regulating chamber 8, and the right side of regulating chamber 8 is flush with the right side of scale 19. The tip of the top of indicator block 18 is flush with the right side of scale 19. The value corresponding to the right scale line of scale 19 is the sum of the storage volume of metering chamber 5 and outlet 6. After indicator block 18 moves to the left, the scale value indicated by the tip of indicator block 18 on scale 19 is the storage volume of metering chamber 5, outlet 6 and regulating chamber 8 located to the right of piston 9, thereby achieving the purpose of metering ethylene oxide sterilizing agent.

[0021] Ethylene oxide is in a liquefied state in the gas cylinder. One end of the ethylene oxide injection pipeline is connected to the pressure reducing valve of the gas cylinder. The pipeline passes through a primary vaporizer for vaporization, then is kept warm through a hot water circulation pipe, and then passes through a secondary vaporizer for further vaporization. Finally, the completely vaporized ethylene oxide is injected into the ethylene oxide sterilizer. The advantages are: the ethylene oxide after secondary vaporization can effectively and completely convert the liquid EO into a gaseous state, ensuring the sterility level of the product after sterilization. Secondary vaporization can avoid the risk of incomplete vaporization leading to product contamination by liquid ethylene oxide, increased residues, and failure to meet sterilization standards.

[0022] The working principle of this utility model is as follows: First, as shown in the figure... Figure 3 As shown, the starting cylinder 7 drives the movable block 4 to move to the left. When the top of the metering chamber 5 is aligned with the lower end of the discharge pipe 2, the ethylene oxide sterilizing agent inside the secondary vaporizer 1 enters the metering chamber 5 and the discharge port 6 through the discharge pipe 2. Then, the valve on the discharge pipe 2 is closed to complete the metering of the ethylene oxide sterilizing agent. Next, the starting cylinder 7 drives the movable block 4 to move to the right and contact the right side of the fixed frame 3. At this time, the lower end of the discharge port 6 is flush with the upper end of the discharge pipe 20. At this time, the ethylene oxide sterilizing agent inside the metering chamber 5 and the discharge port 6 enters the interior of the ethylene oxide sterilizer through the discharge pipe 20. When the size of the ethylene oxide sterilizer increases and more ethylene oxide sterilizing agent needs to be stored, rotate handle 11. Handle 11 drives piston 9 and lead screw 10 to rotate, causing piston 9 and lead screw 10 to move to the left. Lead screw 10 simultaneously drives movable ring 12, limiting block 13, limiting annular groove 14, first movable rod 15, second movable rod 16, and indicator block 18 to move to the left. When the tip of the top of indicator block 18 points to the scale value on scale 19, which is equal to the storage amount of the ethylene oxide sterilizer, stop rotating handle 11. Repeat the above operation to allow the ethylene oxide sterilizing agent to enter the metering chamber 5, the outlet 6, and the regulating chamber 8 located inside the right side of piston 9, and finally be discharged through discharge pipe 20. This allows for the injection of a metered amount of ethylene oxide sterilizing agent into ethylene oxide sterilizers of different sizes.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sterilizing agent injection device for an ethylene oxide sterilizer, comprising a two-stage vaporizer (1), characterized in that: The bottom of the secondary vaporizer (1) is provided with a discharge pipe (2). The lower end of the discharge pipe (2) is fixed to the top of the fixed frame (3). The top of the fixed frame (3) is flush with the lower end of the discharge pipe (2). The fixed frame (3) is slidably provided with a movable block (4). The movable block (4) is provided with a metering cavity (5). The metering cavity (5) is designed as a rectangular structure. The top of the metering cavity (5) is connected to the lower end of the discharge pipe (2). The bottom of the metering cavity (5) is provided with a discharge port (6). A cylinder (7) is fixed through one side of the fixed frame (3). The end of the cylinder (7) is fixedly connected to the middle of the outer side of the movable block (4). The bottom of one side of the metering cavity (5) is provided with an adjustment cavity (8). The adjustment cavity (8) is provided with an ethylene oxide sterilizing agent storage quantity adjustment mechanism. The ethylene oxide sterilizing agent storage quantity adjustment mechanism is provided with a measuring mechanism.

2. The sterilizing agent injection device for an ethylene oxide sterilizer according to claim 1, characterized in that: The ethylene oxide sterilizing agent storage quantity adjustment mechanism includes a piston (9), the piston (9) is slidably arranged inside the adjustment cavity (8), a lead screw (10) is fixed in the middle of one side of the piston (9), and the end of the lead screw (10) passes through the side wall of the movable block (4) and is fixed with a handle (11). The lead screw (10) and the movable block (4) are threadedly connected.

3. The sterilizing agent injection device for an ethylene oxide sterilizer according to claim 2, characterized in that: The measuring mechanism includes a movable ring (12). The movable ring (12) is rotatably disposed on the outside of the movable block (4) on the outer side of the lead screw (10). A limit block (13) is fixed on the inner side of the movable ring (12). The limit block (13) is slidably installed inside the limit annular groove (14). The limit annular groove (14) is opened on the outside of the lead screw (10). A first movable rod (15) is fixed on the outer wall of the movable ring (12). A second movable rod (16) is fixed at the end of the first movable rod (15). The second movable rod (16) is slidably installed inside the guide groove (17). The guide groove (17) is opened on the outside of the fixed frame (3). An indicator block (18) is fixed on the top of the second movable rod (16) outside the fixed frame (3). A scale (19) is disposed above the indicator block (18) outside the fixed frame (3). A scale (19) is disposed on the outside of the fixed frame (3).

4. The sterilizing agent injection device for an ethylene oxide sterilizer according to claim 1, characterized in that: The bottom of the fixed frame (3) is fixed with a discharge pipe (20), and the upper end of the discharge pipe (20) is flush with the bottom of the fixed frame (3). After the right side of the movable block (4) is attached to the right side of the fixed frame (3), the lower end of the discharge port (6) coincides with the upper end of the discharge pipe (20).

5. The sterilizing agent injection device for an ethylene oxide sterilizer according to claim 1, characterized in that: The top and bottom of the movable block (4) are both coated with sealing paint, and the top and bottom of the movable block (4) are in contact with the top and bottom of the fixed frame (3).

6. The sterilizing agent injection device for an ethylene oxide sterilizer according to claim 2, characterized in that: The right side of the piston (9) is flush with the right side of the regulating chamber (8), and the right side of the regulating chamber (8) is flush with the right side of the scale (19). The tip of the top of the indicator block (18) is flush with the right side of the scale (19), and the value corresponding to the right scale line of the scale (19) is the sum of the storage volume of the metering chamber (5) and the discharge port (6).

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