Ethylene oxide sterilizer dosing device

Abstract

The utility model discloses an ethylene oxide sterilizer dosing device belongs to the technical field of ethylene oxide sterilizer, solved the problem that the operator needs manual supplement when adding medicine of the existing sterilizer, and this dosing device includes the dosing assembly of installing on the sterilizing machine main part, and the storage rack of being equipped with all kinds of materials to be cleaned is arranged in the sterilizing machine main part, and the dosing assembly is equipped with the dosing mechanism that will be equipped with ethylene oxide gas gas tank input to target position one by one, and the dosing mechanism includes rotating stand, guide plate and extrusion ring, and the rotating stand is installed in the dosing assembly, and a plurality of guide plates are installed on the equidistance of rotating stand side wall, and the extrusion ring is arranged in one end of guide plate side wall, and the other end of guide plate side wall is installed with the limiting piece, and the gas tank is positioned between the extrusion ring and the limiting piece, and it is convenient for the subsequent dosing assembly to extrude the gas in the gas tank.

Description

Technical Field

[0001] This utility model belongs to the technical field of ethylene oxide sterilizers, specifically relating to a chemical dosing device for an ethylene oxide sterilizer. 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. Currently, ethylene oxide sterilizers primarily use bottled ethylene oxide as the sterilization source. The installation and replacement of the bottled ethylene oxide are typically done manually by operators to help the sterilizer stably clean the materials fed into it.

[0003] Currently, ethylene oxide sterilizers primarily rely on manual replacement of consumed ethylene oxide by operators. While this method is stable, it presents certain problems in practical use. Specifically, once the gas in the ethylene oxide tank is depleted, the sterilizer must be manually shut down before replacement can be performed. This process consumes a significant amount of the sterilizer's operating time, impacting its overall performance. 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] An ethylene oxide sterilizer dosing device includes a dosing assembly installed on the sterilizer body. The dosing assembly inputs gas from a gas tank containing ethylene oxide into the sterilizer body. A sealing plate is installed at the side opening of the sterilizer body to seal the internal space of the sterilizer body and prevent internal gas leakage. The sterilizer body is also equipped with a storage rack containing various materials to be cleaned. The dosing assembly is equipped with a dosing mechanism for switching between multiple gas tanks.

[0007] As a preferred embodiment of this utility model, the dosing mechanism includes a drive motor, a rotating frame, and a guide plate. The drive motor is mounted on the dosing assembly, and the rotating frame is rotatably mounted inside the dosing assembly. The output end of the drive motor is connected to the rotating frame. Multiple sets of guide plates are equidistantly mounted on the outer wall of the rotating frame. A sliding groove is provided at one end of the side wall of the guide plate, and a compression ring is slidably mounted in the sliding groove. The compression ring is fitted and limited at one end of the gas port of the gas tank. A spring assembly is installed at the bottom end of the compression ring, and the other end of the spring assembly is connected to the inner wall of the sliding groove. When the gas tank is pushed and the compression ring is driven to move downward, the spring assembly enters a storage state, and a limiting member is installed on the side wall of the guide plate opposite to the compression ring to limit the top of the gas tank.

[0008] As a preferred technical solution of this utility model, the limiting component includes a fitting ring. The fitting ring is installed on the side wall of the guide plate. The fitting ring is a semi-ring structure. The inner wall of the fitting ring is fitted with the outer wall of the gas tank. The fitting ring itself is magnetic. The gas tank is fitted to the inner wall of the guide plate under the action of magnetism.

[0009] As a preferred technical solution of this utility model, the limiting component includes a sleeve ring and a limiting sleeve. A sleeve ring is installed at one end of the side wall of the guide plate, and a limiting sleeve is installed at the bottom end of the sleeve ring. The sleeve ring and the limiting sleeve are sleeved on the end of the gas tank.

[0010] As a preferred technical solution of this utility model, the dosing component includes an outer shell, a mating port, and a cylinder assembly. The outer shell is installed on the sterilizer body, and an adjustment groove is opened inside the outer shell. The dosing mechanism is installed in the adjustment groove. The cylinder assembly is installed on the outer shell, and a push block is installed at the output end of the cylinder assembly. The push block pushes and squeezes the gas tank. A mating port is installed at the bottom of the outer shell and directly below the push block. The top of the mating port is connected to the gas port of the gas tank to introduce the gas in the gas tank into the sterilizer body.

[0011] As a preferred technical solution of this utility model, the outer shell has a docking hole on which the auxiliary gas tank port can stably pass through between the push block and the mating port.

[0012] As a preferred technical solution of this utility model, the storage rack has multiple sets of holes and slots equidistantly opened on its side. Gas inside the sterilizer body enters the storage rack through the holes and slots to clean the materials in the storage rack.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention incorporates a dosing mechanism and components. A cylinder assembly pushes a pusher block to position the gas tank, aligning its port with the mating port. Gas from the tank enters the sterilizer body to clean the contents. Once the ethylene oxide gas in a single tank is depleted, the rotating frame switches the positions of multiple tanks, facilitating the input of ethylene oxide gas into the sterilizer body and completing the dosing operation. This significantly reduces the time spent loading and unloading the gas tanks, ensuring stable operation of the auxiliary device. 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 dosing component and dosing mechanism of this utility model.

[0016] Figure 3 This is a perspective view of the internal component structure of the outer shell of this utility model.

[0017] Figure 4 This is a schematic diagram of the drug delivery mechanism and the limiting component in Example 1 of this utility model.

[0018] Figure 5 This is a schematic diagram of the limiting component in Embodiment 2.

[0019] Figure 6 This is a schematic diagram of the drug delivery component in this utility model.

[0020] The correspondence between the labels and component names in the attached figures is as follows: 1. Sterilizer body; 2. Storage rack; 3. Dosing assembly; 31. Outer shell; 32. Mating port; 33. Cylinder assembly; 34. Push block; 4. Dosing mechanism; 41. Drive motor; 42. Rotating frame; 43. Guide plate; 44. Extrusion ring; 45. Spring assembly; 46. Limiting component; 461. Fitting ring; 462. Connecting ring; 463. Limiting sleeve. 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] Example 1 like Figure 1 and Figure 2 The diagram shows the structure of the chemical dosing device for the ethylene oxide sterilizer in this embodiment. This device can store multiple gas cylinders containing ethylene oxide, and then input the gas from each cylinder into the sterilizer one by one according to usage requirements. This facilitates efficient cleaning of the materials inside the sterilizer without stopping the sterilizer. The chemical dosing device includes a dosing component 3 installed on the side wall of the sterilizer body 1. The sterilizer body 1 is an existing ethylene oxide sterilizer, and a sealing plate is provided at the side opening of the sterilizer body 1. The sealing plate seals the internal space of the sterilizer body 1 to ensure that the internal gas does not leak during the operation of the sterilizer body 1. The sterilizer body 1 is equipped with a storage rack 2 containing various materials to be cleaned. Multiple slots are opened on the edge of the storage rack 2 to facilitate gas to enter the storage rack 2 from multiple angles and sterilize the materials in the storage rack 2.

[0025] As attached Figure 3 and Figure 6 As shown, this is a schematic diagram of the structure of the dosing component 3 in this embodiment. The dosing component 3 includes an outer shell 31, a mating port 32, and a cylinder assembly 33. The outer shell 31 is installed on one side of the sterilizer body 1. The cylinder assembly 33 is provided on the outer shell 31. A push block 34 is installed at the output end of the cylinder assembly 33. The push block 34 pushes and presses the gas tank in the outer shell 31 and located directly below the push block 34. The mating port 32 is installed below the outer shell 31 and directly below the push block 34. The end of the mating port 32 is connected to the gas port of the gas tank, so that the ethylene oxide gas stored in the gas tank is input into the sterilizer body 1 to assist the sterilizer body 1 in cleaning various materials in the storage rack 2.

[0026] As attached Figure 3 and Figure 4As shown, this is a schematic diagram of the dosing mechanism 4 in this embodiment. The dosing mechanism 4 includes a drive motor 41, a rotating frame 42, and a guide plate 43. The rotating frame 42 is installed inside the outer shell 31 and rotates within the outer shell 31. The drive motor 41, which drives the rotating frame 42 to rotate, is installed on the upper surface of the outer shell 31. The output end of the drive motor 41 is connected to the rotating frame 42. The guide plate 43 is equidistantly installed on the side wall of the rotating frame 42. A sliding groove is provided on one side of the bottom end of the guide plate 43. A compression ring 44 is slidably installed in the sliding groove. The compression ring 44 is in contact with one end of the gas outlet of the gas tank. A limiting member 46 is installed on the side of the guide plate 43 and on the side opposite to the guide plate 43. The limiting member 46 limits the other end of the gas tank. A spring assembly 45 is installed on the compression ring 44. The other end of the spring assembly 45 is connected to the inner wall of the sliding groove. When the drive motor 41 drives the rotating frame 42 to rotate, the compression ring 42 rotates within the outer shell 31. After the moving frame 42 rotates, the guide plate 43 moves the gas canister containing ethylene oxide between the pushing block 34 and the mating port 32. Then, through the pushing and squeezing of the pushing block 34, the gas canister is driven to slide along the inner wall of the guide plate 43. The top of the gas canister squeezes the squeezing ring 44, causing the squeezing ring 44 to move closer to the mating port 32. At this time, the spring assembly 45 enters the storage state until the gas canister's gas port is connected to the mating port 32. At this time, the gas inside the gas canister is input into the sterilizer body 1 through the mating port 32. When the ethylene oxide gas in this set of gas canisters is exhausted, the drive motor 41 drives the rotating frame 42 to rotate the guide plate 43, moving another set of gas canisters to the target position, and continuing to input ethylene oxide gas into the sterilizer body 1, realizing a stable and efficient dosing operation.

[0027] As attached Figure 4 As shown, this is a schematic diagram of the structure of the limiting member 46 in this embodiment. The limiting member 46 includes a fitting ring 461, which is a semi-circular structure. The inner diameter of the fitting ring 461 is equal to the outer diameter of the gas tank. The outer wall of the gas tank is attached to the inner wall of the fitting ring 461. The radius of the pushing block 34 is smaller than the inner diameter of the fitting ring 461. The fitting ring 461 itself is magnetic, which attracts the position of the gas tank and ensures that the gas tank is attached to the side wall of the guide plate 43.

[0028] Example 2 As attached Figure 5 As shown, it is a structural schematic diagram of the limiting member 46 in this embodiment. The difference between this embodiment and embodiment 1 is that the limiting member 46 in this embodiment includes a sleeve ring 462 and a limiting sleeve 463. The sleeve ring 462 is installed on the side wall of the guide plate 43, and the limiting sleeve 463 is installed at the bottom end of the sleeve ring 462. The sleeve ring 462 and the limiting sleeve 463 are sleeved on the end of the gas tank. When the pushing block 34 passes through the sleeve ring 462 and the limiting sleeve 463, it squeezes and pushes the position of the gas tank.

[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 dosing device for an ethylene oxide sterilizer, comprising a dosing assembly (3) installed on the sterilizer body (1), the dosing assembly (3) inputting gas from a gas tank containing ethylene oxide into the sterilizer body (1), a sealing plate installed at the side opening of the sterilizer body (1), the sealing plate sealing the internal space of the sterilizer body (1) to prevent internal gas leakage, and a storage rack (2) containing various materials to be cleaned is provided inside the sterilizer body (1), characterized in that: The dosing assembly (3) is equipped with a dosing mechanism (4) for switching between multiple gas tanks.

2. The chemical dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that: The dosing mechanism (4) includes a drive motor (41), a rotating frame (42), and a guide plate (43). The drive motor (41) is installed on the dosing assembly (3). The rotating frame (42) is rotatably installed inside the dosing assembly (3). The output end of the drive motor (41) is connected to the rotating frame (42). Multiple sets of guide plates (43) are equidistantly installed on the outer wall of the rotating frame (42). A sliding groove is opened at one end of the side wall of the guide plate (43). A compression ring (44) is slidably installed in the sliding groove. The compression ring (44) fits and limits one end of the gas port of the gas tank. A spring assembly (45) is installed at the bottom end of the compression ring (44). The other end of the spring assembly (45) is connected to the inner wall of the sliding groove. When the gas tank is pushed and the compression ring (44) is driven to move downward, the spring assembly (45) enters the storage state. A limiting member (46) is installed on the side wall of the guide plate (43) opposite to the compression ring (44) to limit the top of the gas tank.

3. The chemical dosing device for an ethylene oxide sterilizer according to claim 2, characterized in that: The limiting component (46) includes a fitting ring (461). The fitting ring (461) is installed on the side wall of the guide plate (43). The fitting ring (461) is a semi-ring structure. The inner wall of the fitting ring (461) is fitted with the outer wall of the gas tank. The fitting ring (461) itself is magnetic. The gas tank is fitted to the inner wall of the guide plate (43) under the action of magnetism.

4. The chemical dosing device for an ethylene oxide sterilizer according to claim 2, characterized in that: The limiting component (46) includes a sleeve ring (462) and a limiting sleeve (463). A sleeve ring (462) is installed at one end of the side wall of the guide plate (43), and a limiting sleeve (463) is installed at the bottom end of the sleeve ring (462). The sleeve ring (462) and the limiting sleeve (463) are fitted onto the end of the gas tank.

5. The chemical dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that: The dosing assembly (3) includes an outer shell (31), a mating port (32), and a cylinder assembly (33). The outer shell (31) is installed on the sterilizer body (1). An adjustment groove is provided inside the outer shell (31). The dosing mechanism (4) is installed in the adjustment groove. The cylinder assembly (33) is installed on the outer shell (31). A push block (34) is installed at the output end of the cylinder assembly (33). The push block (34) pushes and squeezes the gas tank. A mating port (32) is installed at the bottom of the outer shell (31) and directly below the push block (34). The top of the mating port (32) is connected to the gas port of the gas tank to introduce the gas in the gas tank into the sterilizer body (1).

6. The chemical dosing device for an ethylene oxide sterilizer according to claim 5, characterized in that: The outer shell (31) has a docking hole on which the auxiliary gas tank port can stably pass through between the push block (34) and the mating port (32).

7. The chemical dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that: The storage rack (2) has multiple sets of holes and slots equidistantly opened on its side. Gas inside the sterilizer body (1) enters the storage rack (2) through the holes and slots to clean the materials in the storage rack (2).

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