A large-scale ethylene oxide sterilizer even-dosing air distribution device

Abstract

This utility model discloses a uniform gas distribution device for a large-scale ethylene oxide sterilizer, belonging to the technical field of ethylene oxide sterilizers. It solves the problem that existing sterilizers have fixed gas input angles and input points, making it impossible to encapsulate materials from multiple angles. The sterilizer includes a sterilizer and a collection frame. The sterilizer has a sterilization tank inside, and a baffle plate is installed at the side opening of the sterilizer and on the side of the sterilization tank. The collection frame is set inside the sterilization tank to store the material to be sterilized. An air jet mechanism is installed inside the sterilization tank. The air jet mechanism includes an outer shell, an air inlet hose, and a main rod. The outer shell is installed inside the sterilizer, and the main rod is rotatably installed inside the outer shell. A lower connecting plate is installed at the bottom of the main rod, and an air jet component is installed at the bottom of the lower connecting plate. An air inlet hose is installed on the main rod, and the air inlet hose inputs ethylene oxide gas into the air jet component.

Description

Technical Field

[0001] This utility model belongs to the technical field of ethylene oxide sterilizers, specifically relating to a large-scale ethylene oxide sterilizer with uniform gas distribution and dosing device. Background Technology

[0002] Ethylene oxide sterilizers are low-temperature sterilization devices that use 100% ethylene oxide gas as the sterilization medium. They are mainly used for sterilizing heat- and moisture-sensitive medical devices, electronic instruments, plastic products, and other items. An ethylene oxide sterilizer is a sterilization device that introduces canned ethylene oxide gas into the sterilizer to disinfect various instruments and products inside. The gas in the gas canister is introduced into the sterilizer through a fixed gas port to fill the space inside the sterilizer. The sterilization process is completed by utilizing the properties of ethylene oxide gas.

[0003] Existing sterilizers use ethylene oxide gas introduced into them through an air inlet. However, this method has certain problems in practical use. Specifically, the angle and position of the gas input are fixed, and the gas can only fill the sterilizer from a single angle. This prevents the gas from enveloping the material from multiple angles, thus affecting the overall sterilization efficiency of the sterilizer. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0006] A large-scale ethylene oxide sterilizer with uniform gas distribution device includes a sterilizer and a collection frame. The sterilizer has a sterilization tank inside, and the collection frame is installed inside the sterilization tank to store and transport the material to be sterilized. The sterilizer is equipped with a jetting mechanism, which includes an outer shell, an inlet hose, and a main rod. The outer shell is installed inside the sterilizer, and the main rod is rotatably installed inside the outer shell. A lower connecting plate is installed at the bottom of the main rod, and an inlet hose for inputting ethylene oxide gas is installed at the top of the main rod. Jet nozzles that spray ethylene oxide gas at different angles are installed below the lower connecting plate.

[0007] As a preferred technical solution of this utility model, the jet component includes a bracket, a jet nozzle, and a first spring. The bracket is symmetrically installed at the bottom end of the lower connecting plate, and the jet nozzle is rotatably installed between the brackets. The jet nozzle sprays out ethylene oxide gas input by the air inlet hose. The first spring is installed on the surface of the jet nozzle and is connected to the lower connecting plate. The side of the lower connecting plate is equipped with a corrugated plate, which is in contact with the jet nozzle by compression. The corrugated plate changes the tilt angle of the jet nozzle itself.

[0008] As a preferred technical solution of this utility model, the jet mechanism further includes a drive motor and a transmission gear set. The drive motor is installed inside the outer casing, and the transmission gear set is installed on the drive motor. The transmission gear set drives the lower connecting plate and the main rod to rotate.

[0009] As a preferred technical solution of this utility model, the transmission gear set is composed of a set of meshing bevel gears, one set of bevel gears is installed at the output end of the drive motor, and the other set of bevel gears is installed on the outside of the main rod body.

[0010] As a preferred technical solution of this utility model, it also includes a compression mechanism, which includes a drive component and a compression component. The drive component is disposed in the housing, and a compression component for compressing the outer wall of the air intake hose is disposed above the drive component.

[0011] As a preferred technical solution of this utility model, the drive assembly includes a first gear, a second gear and a transmission rod. The first gear is installed on the outside of the main rod body, the second gear is meshed on the side of the first gear, the transmission rod is installed on the second gear, and a cam is installed at the end of the transmission rod.

[0012] As a preferred technical solution of this utility model, the extrusion assembly includes an extrusion plate, a second spring, and a blocking plate. An extrusion groove is provided in the outer shell, and the extrusion plate is slidably installed in the extrusion groove. The extrusion plate is in extrusion contact with the cam. A second spring is installed at the bottom end of the extrusion plate, and the other end of the second spring is connected to the inner wall of the extrusion groove. A blocking plate is installed on the side of the extrusion groove opposite to the extrusion plate. The extrusion plate moves towards the side closer to the blocking plate by the extrusion of the cam.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention incorporates a jetting mechanism and a squeezing mechanism. The transmission gear set and the main rod work together to drive the jet nozzle to rotate around the main rod as its axis. During rotation, a wave plate further adjusts the angle of the jet nozzle, allowing it to inject ethylene oxide gas into the sterilizer from multiple angles and directions. This sterilizes the materials inside the sterilizer. Furthermore, the squeezing plate and baffle plate work together to compress the air inlet hose, altering the gas flow rate and ensuring comprehensive spraying of the ethylene oxide gas throughout the sterilizer. This guarantees the sterilizer's inherent working quality. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model.

[0015] Figure 2 This is a perspective view of the internal component structure of the sterilization tank of this utility model.

[0016] Figure 3 This is a plan view of the jet mechanism structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the jet mechanism in this utility model.

[0018] Figure 5 This is a schematic diagram of the jet component in this utility model.

[0019] Figure 6 This is a schematic diagram of the extrusion mechanism in this utility model.

[0020] The correspondence between the labels and component names in the attached figures is as follows: 1. Sterilizer; 2. Collection box; 3. Air jet mechanism; 31. Outer shell; 32. Air inlet hose; 33. Main rod; 34. Lower connecting plate; 35. Air jet component; 351. Support; 352. Air jet nozzle; 353. First spring; 354. Wave plate; 36. Drive motor; 37. Transmission gear set; 4. Extrusion mechanism; 41. First gear; 42. Second gear; 43. Transmission rod; 44. Cam; 45. Extrusion plate; 46. Second spring; 47. Baffle plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0024] like Figure 1 and Figure 2 The diagram shows the structure of the uniform gas distribution device for the large ethylene oxide sterilizer in this embodiment. This sterilizer changes the traditional method of ethylene oxide input, allowing ethylene oxide gas to be input into the sterilizer at multiple angles. This enables the material inside the sterilizer to be wrapped from multiple angles, thus accelerating the overall working efficiency of the sterilizer. The sterilizer includes a sterilizer 1 and a collection frame 2. The sterilizer 1 has a sterilization tank inside. A baffle plate is installed at the side opening of the sterilizer 1 and on the side of the sterilization tank. The baffle plate seals and blocks the side opening of the sterilizer 1. The collection frame 2 is set inside the sterilization tank to store the material to be sterilized. Multiple sets of vent holes are equidistantly opened on the edge of the collection frame 2. Ethylene oxide gas enters into the collection frame 2 through the vent holes, wrapping and sterilizing the material stored in the collection frame 2. An air jet mechanism 3 is installed inside the sterilization tank to adjust the input angle of the ethylene oxide gas.

[0025] As attached Figure 3 and Figure 4The diagram shown is a structural schematic of the jet mechanism 3 in this embodiment. The jet mechanism 3 includes an outer shell 31, an air inlet hose 32, and a main rod 33. The outer shell 31 is installed inside the sterilizer 1. The main rod 33 is rotatably mounted inside the outer shell 31. A lower connecting plate 34 is installed at the bottom of the main rod 33, and a jet element 35 is installed at the bottom of the lower connecting plate 34. The air inlet hose 32 is installed on the main rod 33. The air inlet hose 32 inputs ethylene oxide gas into the jet element 35, and the jet element 35 ejects the input gas. A drive motor 36 is installed inside the body 31. A transmission gear set 37 is installed at the output end of the drive motor 36. The transmission gear set 37 is mainly composed of meshing bevel gears. One set of bevel gears is installed at the output end of the transmission gear set 37, and the other set of bevel gears is installed outside the main rod body 33. When the drive motor 36 runs, the transmission gear set 37 drives the main rod body 33 to rotate synchronously, thereby adjusting and controlling the angle of the jet component 35, so that the jet component 35 can fill the internal space of the sterilization tank from multiple angles.

[0026] As attached Figure 5 As shown, this is a schematic diagram of the jet component 35 in this embodiment. The jet component 35 includes a bracket 351, a jet nozzle 352, a first spring 353, and an undulating wave plate 354. The brackets 351 are symmetrically mounted on the bottom end of the lower connecting plate 34, and the jet nozzles 352 are rotatably mounted between the brackets 351. The jet nozzles 352 spray the gas input into the air intake hose 32. The first spring 353 is mounted on the jet nozzle 352, and the other end of the first spring 353 is connected to the lower connecting plate 34. The undulating wave plate 354 is mounted on the outside of the lower connecting plate 34. The wave plate 354 is fixedly connected to the inner wall of the outer shell 31. When the lower connecting plate 34 drives the jet nozzle 352 to rotate, the position of the wave plate 354 is locked. At this time, the jet nozzle 352 is stretched by the first spring 353 and deflects to the side closer to the wave plate 354. By utilizing the curvature, groove and other structures of the wave plate 354, the jet nozzle 352 slides against the bottom of the wave plate 354. At this time, the angle of the jet nozzle 352 swings up and down, controlling the angle of the jet nozzle 352 when it is working.

[0027] As attached Figure 6The diagram shows the structure of the extrusion mechanism 4 in this embodiment. The extrusion mechanism 4, which controls the flow rate of gas input into the air inlet hose 32, is installed inside the outer casing 31. The extrusion mechanism 4 includes a first gear 41, a second gear 42, and a transmission rod 43. The first gear 41 is sleeved on the outside of the main rod 33, and the second gear 42 meshes with the side of the first gear 41. The transmission rod 43 is mounted on the second gear 42, and a cam 44 is mounted at the end of the transmission rod 43. An extrusion groove is formed inside the outer casing 31, and an extrusion plate 45 is slidably installed inside the extrusion groove. A second spring 46 is mounted at the end of the extrusion plate 45, and the end of the second spring 46 is connected to the inner wall of the extrusion groove. The extrusion plate 45 and the cam 44 are in extrusive contact. When the main rod 33 rotates... The first gear 41 drives the second gear 42 to rotate. At this time, the transmission rod 43 drives the cam 44 to change its angle. The cam 44 squeezes the position of the extrusion plate 45, driving the extrusion plate 45 to squeeze towards the side of the air intake hose 32, thus squeezing the air intake hose 32 and changing its diameter. As the diameter of the air intake hose 32 changes, the gas flow rate entering the air intake hose 32 changes. In addition, a baffle plate 47 is installed on the side of the outer shell 31 opposite to the extrusion plate 45. The baffle plate 47 blocks and supports the other side wall of the air intake hose 32, assisting the extrusion plate 45 in stably squeezing the air intake hose 32, allowing ethylene oxide gas to be input into the sterilization tank at different flow rates.

[0028] It is worth noting that in this embodiment, the first gear 41, the second gear 42, the transmission rod 43 and the cam 44 form a drive assembly that drives the extrusion plate 45 to move, and the extrusion plate 45, the second spring 46 and the blocking plate 47 form an extrusion assembly that extrudes the air intake hose 32.

[0029] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A large-scale ethylene oxide sterilizer with uniform gas distribution device, comprising a sterilizer (1) and a collection frame (2), wherein the sterilizer (1) has a sterilization tank inside, and the collection frame (2) is provided inside the sterilization tank, the collection frame (2) being used to store and transport materials to be sterilized, characterized in that: The sterilizer (1) is equipped with a jetting mechanism (3). The jetting mechanism (3) includes an outer shell (31), an air inlet hose (32), and a main rod (33). The outer shell (31) is installed inside the sterilizer (1). The main rod (33) is rotatably installed inside the outer shell (31). A lower connecting plate (34) is installed at the bottom of the main rod (33). An air inlet hose (32) for inputting ethylene oxide gas is installed at the top of the main rod (33). A jetting component (35) that sprays out ethylene oxide gas at different angles is installed below the lower connecting plate (34).

2. The uniform gas distribution device for dosing chemicals in a large ethylene oxide sterilizer according to claim 1, characterized in that: The jet component (35) includes a bracket (351), a jet nozzle (352), and a first spring (353). The bracket (351) is symmetrically installed at the bottom end of the lower connecting plate (34). The jet nozzle (352) is rotatably installed between the brackets (351). The jet nozzle (352) sprays out ethylene oxide gas input from the air inlet hose (32). The first spring (353) is installed on the surface of the jet nozzle (352). The first spring (353) is connected to the lower connecting plate (34). The side of the lower connecting plate (34) is equipped with a wave plate (354). The wave plate (354) is in contact with the jet nozzle (352) by pressing. The wave plate (354) changes the tilt angle of the jet nozzle (352).

3. The large-scale ethylene oxide sterilizer gas distribution and dosing uniformity device of claim 1, wherein: The jet mechanism (3) also includes a drive motor (36) and a transmission gear set (37). The drive motor (36) is installed inside the outer casing (31), and the transmission gear set (37) is installed on the drive motor (36). The transmission gear set (37) drives the lower connecting plate (34) and the main rod (33) to rotate.

4. The uniform gas distribution device for dosing chemicals in a large ethylene oxide sterilizer according to claim 3, characterized in that: The transmission gear set (37) consists of a set of meshing bevel gears, one set of bevel gears is installed at the output end of the drive motor (36), and the other set of bevel gears is installed outside the main rod body (33).

5. The uniform gas distribution device for dosing chemicals in a large-scale ethylene oxide sterilizer according to claim 1, characterized in that: It also includes a squeezing mechanism (4), which includes a drive assembly and a squeezing assembly. The drive assembly is located inside the housing (31), and a squeezing assembly is provided above the drive assembly to squeeze the outer wall of the air intake hose (32).

6. The dosing and uniform gas distribution device for a large-scale ethylene oxide sterilizer according to claim 5, characterized in that: The drive assembly includes a first gear (41), a second gear (42) and a transmission rod (43). The first gear (41) is installed on the outside of the main rod body (33). The second gear (42) is meshed on the side of the first gear (41). The transmission rod (43) is installed on the second gear (42). A cam (44) is installed at the end of the transmission rod (43).

7. The uniform gas distribution device for dosing chemicals in a large ethylene oxide sterilizer according to claim 6, characterized in that: The extrusion assembly includes an extrusion plate (45), a second spring (46), and a baffle plate (47). An extrusion groove is provided inside the outer shell (31). The extrusion plate (45) is slidably installed in the extrusion groove. The extrusion plate (45) is in extrusion contact with the cam (44). The second spring (46) is installed at the bottom end of the extrusion plate (45). The other end of the second spring (46) is connected to the inner wall of the extrusion groove. A baffle plate (47) is installed on one side of the extrusion groove opposite to the extrusion plate (45). The extrusion plate (45) moves towards the baffle plate (47) by the extrusion of the cam (44).

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