A hydrogen peroxide low-temperature plasma sterilizer

Abstract

This utility model belongs to the field of sterilizer technology and discloses a hydrogen peroxide low-temperature plasma sterilizer, including a sterilizer cabinet. A movable component is connected to the bottom of the sterilizer cabinet, and a protective cover connected to the bottom of the sterilizer cabinet is provided on the outside of the movable component. The distance between the bottom of the movable component and the bottom of the sterilizer cabinet is greater than the distance between the bottom of the protective cover and the bottom of the sterilizer cabinet. The movable component consists of a reinforcing base, several roller assemblies, an anti-tipping component, and a linkage component. The reinforcing base is fixedly supported to the bottom of the sterilizer cabinet by bolts. This utility model uses the anti-tipping component to respond to the left and right tilt angles of the sterilizer cabinet. With the cooperation of the linkage component, when the sterilizer cabinet tilts significantly, two corresponding roller assemblies can be locked in conjunction with the anti-tipping component and the linkage component to stabilize the tilted sterilizer cabinet, allowing staff to easily and promptly right it.

Description

Technical Field

[0001] This utility model belongs to the field of sterilizer technology, specifically a hydrogen peroxide low-temperature plasma sterilizer. Background Technology

[0002] In the medical field, the disinfection and sterilization of medical devices is very important. Currently, the most advantageous and widely used low-temperature disinfection and sterilization method for medical devices is to use hydrogen peroxide disinfectant. In order to improve the sterilization effect, shorten the sterilization time, and reduce the sterilization cost, it is usually necessary to use vacuum heating to purify the hydrogen peroxide liquid and then vaporize it to disinfect and sterilize the medical devices.

[0003] Currently, hydrogen peroxide vaporization sterilization equipment has become the preferred device for low-temperature sterilization of medical devices. However, due to the large size and weight of sterilizers, casters are usually installed at the bottom of the sterilizer to facilitate movement during daily use. With the help of the casters, the sterilizer can be moved by pushing it. However, since some cabinet sterilizers are quite tall, according to practical experience, if tilting occurs when pushing such large equipment with the help of casters, the lower part of the cabinet will slide rapidly to the other side under the action of the casters, accelerating the rate at which the cabinet tilts or even falls over, which poses a great risk to personal safety and economic loss.

[0004] Therefore, it is necessary to develop a hydrogen peroxide low-temperature plasma sterilizer to address the shortcomings of existing technologies. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a hydrogen peroxide low-temperature plasma sterilizer, which has the advantages of high mobility and safety.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen peroxide low-temperature plasma sterilizer, comprising a sterilization cabinet, a movable component connected to the bottom of the sterilization cabinet, a protective cover connected to the bottom of the sterilization cabinet being provided on the outside of the movable component, and the distance between the bottom of the movable component and the bottom of the sterilization cabinet being greater than the distance between the bottom of the protective cover and the bottom of the sterilization cabinet.

[0007] The moving component consists of a reinforcing base, several roller assemblies, an anti-tipping assembly, and a linkage assembly. The reinforcing base is fixedly supported to the bottom of the sterilizer by bolts. The linkage assembly, anti-tipping assembly, and roller assembly correspond one-to-one. The roller assembly is rotatably connected to the bottom of the reinforcing base. The linkage assembly is slidably connected to the front and rear sides of the linkage assembly. The anti-tipping assembly is located inside the reinforcing base. One end of the anti-tipping assembly extends to the top of the reinforcing base, and the other end extends to the bottom of the reinforcing base and the top of the linkage assembly, and is sleeved on the outside of the roller assembly.

[0008] Furthermore, the roller assembly includes a universal roller frame disposed at the bottom of the reinforcing base, and a rotating shaft is fixedly connected to the top of the universal roller frame. The rotating shaft is rotatably sleeved inside the reinforcing base through a bearing.

[0009] Furthermore, the omnidirectional roller frame is internally connected to a movable roller, the central axis of which is perpendicular to the central axis of the rotation shaft, but not in the same vertical plane.

[0010] Furthermore, a support transmission rod is fixedly sleeved inside the movable roller. Both ends of the support transmission rod pass through the movable roller and extend to the front and rear sides of the universal roller frame. The rod is rotatably sleeved on the front and rear sides of the universal roller frame through bearings. Both ends of the movable roller are connected to the linkage assembly.

[0011] Furthermore, the linkage component includes a linkage ring sleeved on the outside of the roller assembly. Below the linkage ring are two linkage frames located on the front and rear sides of the universal roller frame. The distal ends of the two linkage frames rotate with the roller assembly and are always located on the outside of the linkage ring, while the proximal ends of the two linkage frames rotate with the roller assembly and are always located on the inside of the linkage ring. A positioning groove is provided on both the front and rear sides of the universal roller frame.

[0012] Furthermore, a locking gear is fixedly connected to the opposing surfaces of the two linkage frames. The locking gear is slidably engaged inside the positioning groove. A transmission gear is provided below the positioning groove. The transmission gear is fixedly connected to the end of the supporting transmission rod. A gap is left between the locking gear and the transmission gear. The locking gear slides down along the inside of the positioning groove and finally meshes with the top of the transmission gear.

[0013] Furthermore, the anti-tipping assembly includes a sealing cavity formed within the reinforcing base. One end of the sealing cavity is horizontal, and the other end is vertical. A sealing cover is embedded in the top of the horizontal cavity. A counterweight piston is formed in the end of the sealing cover away from the vertical end. Both ends of the counterweight piston are connected to the two sides of the sealing cover. The bottom of the vertical section extends to the bottom of the reinforcing base.

[0014] Furthermore, a counterweight piston is sealed between the inside of the sealed cavity and the bottom of the encapsulation cover. The outer surfaces of the counterweight piston, the encapsulation cover, and the inner wall of the sealed cavity are all smooth. One end of the counterweight piston is restricted by a return spring so that its other end is at a distance from the vertical end of the sealed cavity. The end of the outer surface of the counterweight piston near the vent hole is connected to a return spring located below the vent hole. The other end of the return spring is connected to the inner wall of the sealed cavity.

[0015] The vertical end of the sealed cavity is fitted with a linkage piston rod, the lower end of which passes through the sealed cavity and extends to the bottom of the reinforcing base and is connected to the top of the linkage ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Due to the anti-tipping component, this utility model can make corresponding movements according to the left and right tilt angle of the sterilization cabinet. In addition, with the cooperation of the linkage component, when the sterilization cabinet is tilted too much, the two corresponding roller components can be locked in cooperation with the anti-tipping component and the linkage component to keep the tilted sterilization cabinet stable so that the staff can easily and promptly straighten it.

[0018] 2. Due to the encapsulation cover, this utility model can be removed to install or replace the counterweight piston column and return spring, etc., ensuring that the corresponding counterweight piston column and return spring can be adapted to the tilt of different sterilizers, and ensuring that the anti-tipping component can react sufficiently within the safe tilt angle to lock the roller assembly, avoiding the situation where it is difficult to straighten a sterilizer with a high center of gravity when the tilt angle is small. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the movable component of this utility model;

[0022] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0023] Figure 5 This is a cross-sectional view of the front of the sealed cavity in the mobile component of this utility model.

[0024] In the diagram: 1. Sterilization cabinet; 2. Moving assembly; 21. Reinforced base; 22. Roller assembly; 221. Universal roller frame; 222. Rotating shaft; 223. Moving roller; 224. Support transmission rod; 23. Anti-tipping assembly; 231. Sealing cavity; 232. Sealing cover; 233. Vent hole; 234. Counterweight piston rod; 235. Return spring; 236. Linkage piston rod; 24. Linkage assembly; 241. Linkage ring; 242. Transmission gear; 243. Positioning slide; 244. Locking gear; 245. Linkage frame; 3. Protective cover. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 5 As shown, this utility model provides a hydrogen peroxide low-temperature plasma sterilizer, including a sterilizer cabinet 1, a movable component 2 connected to the bottom of the sterilizer cabinet 1, and a protective cover 3 connected to the bottom of the sterilizer cabinet 1 on the outside of the movable component 2. The distance between the bottom of the movable component 2 and the bottom of the sterilizer cabinet 1 is greater than the distance between the bottom of the protective cover 3 and the bottom of the sterilizer cabinet 1.

[0027] The moving component 2 consists of a reinforcing base 21, several roller assemblies 22, an anti-tipping component 23, and a linkage component 24. The reinforcing base 21 is fixedly supported at the bottom of the sterilizer 1 by bolts. The linkage component 24, the anti-tipping component 23, and the roller assemblies 22 correspond one-to-one. The roller assemblies 22 are rotatably connected to the bottom of the reinforcing base 21. The linkage components 24 are slidably connected to the front and rear sides of the linkage component 24. The anti-tipping component 23 is disposed inside the reinforcing base 21, with one end of the anti-tipping component 23 extending to the top of the reinforcing base 21. The other end of the anti-tipping component 23 extends to the lower part of the reinforcing base 21 and the upper part of the linkage component 24, and is sleeved on the outside of the roller assembly 22. Due to the setting of the anti-tipping component 23, it can make corresponding movements according to the left and right tilt angle of the sterilizer 1. Then, with the cooperation of the linkage component 24, when the sterilizer 1 is tilted too much, the two corresponding roller assemblies 22 can be locked with the cooperation of the anti-tipping component 23 and the linkage component 24, so that the tilted sterilizer 1 remains stable, so that the staff can easily and timely straighten it.

[0028] The roller assembly 22 includes a universal roller frame 221 disposed at the bottom of the reinforcing base 21. A rotating shaft 222 is fixedly connected to the top of the universal roller frame 221. The rotating shaft 222 is rotatably sleeved inside the reinforcing base 21 through a bearing. Due to the setting of the rotating shaft 222, it can be ensured that the universal roller frame 221 and the moving roller 223 can rotate along the bottom of the reinforcing base 21, so that the sterilizer 1 can move left and right through the reinforcing base 21 and the roller assembly 22 at its bottom.

[0029] The universal roller frame 221 is internally connected to a movable roller 223. The central axis of the movable roller 223 is perpendicular to the central axis of the rotating shaft 222, but they are not in the same vertical plane.

[0030] The movable roller 223 is internally fixedly fitted with a support transmission rod 224. The two ends of the support transmission rod 224 pass through the movable roller 223 and extend to the front and rear sides of the universal roller frame 221. It is rotatably fitted to the front and rear sides of the universal roller frame 221 through bearings. The two ends of the movable roller 223 are connected to the linkage component 24.

[0031] The linkage component 24 includes a linkage ring 241 sleeved on the outside of the roller assembly 22. Below the linkage ring 241 are two linkage frames 245 located on the front and rear sides of the universal roller frame 221. The distal ends of the two linkage frames 245 rotate with the roller assembly 22 and are always located on the outside of the linkage ring 241. The proximal ends of the two linkage frames 245 rotate with the roller assembly 22 and are always located on the inside of the linkage ring 241. A positioning groove 243 is provided on both the front and rear sides of the universal roller frame 221.

[0032] Due to the positioning groove 243, it can ensure that the locking gear 244 can move up and down smoothly, while restricting its rotation. After its bottom meshes with the top of the transmission gear 242, it can restrict the rotation of the transmission gear 242, thereby locking the roller assembly 22.

[0033] In this configuration, a locking gear 244 is fixedly connected to the opposing surfaces of the two linkage frames 245. The locking gear 244 is slidably engaged inside the positioning slide groove 243. A transmission gear 242 is provided below the positioning slide groove 243. The transmission gear 242 is fixedly connected to the end of the support transmission rod 224. A gap is left between the locking gear 244 and the transmission gear 242. The locking gear 244 slides down along the inside of the positioning slide groove 243 and finally meshes with the top of the transmission gear 242.

[0034] The anti-tipping component 23 includes a sealing cavity 231 opened in the reinforcing base 21. One end of the sealing cavity 231 is horizontal and the other end is vertical. A sealing cover plate 232 is embedded in the top of the horizontal cavity. A counterweight piston column 234 is opened in the end of the sealing cover plate 232 away from the vertical position. The two ends of the counterweight piston column 234 are respectively connected to the two sides of the sealing cover plate 232. The bottom of the vertical position extends to the bottom of the reinforcing base 21.

[0035] Because of the enclosure cover 232, it can be removed to install or replace the counterweight piston column 234 and the return spring 235, etc., to ensure that the corresponding counterweight piston column 234 and return spring 235 can be adapted to different tilt conditions of the sterilizer 1, and to ensure that the anti-tipping component 23 can react sufficiently within the safe tilt angle to lock the roller assembly 22, so as to avoid the situation that the sterilizer 1 with a high center of gravity is difficult to straighten when the tilt angle is small.

[0036] A counterweight piston column 234 is sealed between the inside of the sealing cavity 231 and the bottom of the encapsulation cover plate 232. The outer surfaces of the counterweight piston column 234 and the encapsulation cover plate 232, as well as the inner wall of the sealing cavity 231, are all smooth. One end of the counterweight piston column 234 is restricted by the return spring 235 so that there is a distance between its other end and the vertical end of the sealing cavity 231. The end of the outer surface of the counterweight piston column 234 near the vent hole 233 is connected to the return spring 235 located below the vent hole 233. The other end of the return spring 235 is connected to the inner wall of the sealing cavity 231.

[0037] The vertical end of the inner cavity of the sealing cavity 231 is fitted with a linkage piston rod 236. The lower end of the linkage piston rod 236 passes through the sealing cavity 231 and extends to the bottom of the reinforcing base 21 and is connected to the top of the linkage ring 241.

[0038] Working principle and usage process of this utility model:

[0039] As shown in the figure, when the sterilizer 1 needs to be pushed, push its side so that it can move left and right with the help of several roller assemblies 22 under the bottom reinforced base 21.

[0040] When sterilizer 1 tilts to the left or right, staff can immediately right it. If the tilt angle is too large, the two front and rear moving rollers 223 on the bottom side of sterilizer 1 that are touching the ground may slide in opposite directions, accelerating the tilt of sterilizer 1. Once sterilizer 1 reaches a certain tilt angle, gravity will cause the counterweight piston rod 234 in the sealed cavity 231 to slide towards the side closer to the linkage piston rod 236, pushing the gas on that side. Simultaneously, it stretches the return spring 235 at its other end, increasing its elastic restoring force. Because the gas at the top of the linkage piston rod 236 in the sealed cavity 231 is pushed by the counterweight piston rod 234, the gas... With the cooperation of the sealed cavity 231, the body pushes the linkage piston rod 236 down, which in turn pushes the linkage ring 241 down. When the linkage ring 241 moves down and finally presses down the linkage frame 245, the locking gear 244 can be pushed down under the restriction of the positioning slide groove 243 and finally mesh with the transmission gear 242. At this time, under the restriction of the positioning slide groove 243 on the rotation of the locking gear 244, the transmission gear 242 cannot rotate, thereby locking the support transmission rod 224 and the positioning slide groove 243 in the middle, thus ensuring that the two front and rear moving rollers 223 at the bottom of the inclined end of the sterilizer 1 remain stable, so that the staff can easily straighten the sterilizer 1.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen peroxide low-temperature plasma sterilizer, comprising a sterilization cabinet (1), characterized in that: The bottom of the sterilizer (1) is connected to a moving component (2), and the outside of the moving component (2) is provided with a protective cover (3) connected to the bottom of the sterilizer (1). The distance between the bottom of the moving component (2) and the bottom of the sterilizer (1) is greater than the distance between the bottom of the protective cover (3) and the bottom of the sterilizer (1). The moving component (2) consists of a reinforcing base (21) and several roller assemblies (22), anti-tipping components (23) and linkage components (24). The reinforcing base (21) is fixedly supported at the bottom of the sterilizer (1) by bolts. Several linkage components (24), anti-tipping components (23) and roller assemblies (22) correspond one to one. Several roller assemblies (22) are rotatably connected to the bottom of the reinforcing base (21). The linkage components (24) are slidably connected to the front and rear sides of the linkage components (24). The anti-tipping components (23) are disposed inside the reinforcing base (21). One end of the anti-tipping components (23) extends to the top of the reinforcing base (21), and the other end of the anti-tipping components (23) extends to the bottom of the reinforcing base (21) and the top of the linkage components (24), and is sleeved on the outside of the roller assemblies (22).

2. The hydrogen peroxide low-temperature plasma sterilizer according to claim 1, characterized in that: The roller assembly (22) includes a universal roller frame (221) disposed at the bottom of the reinforcing base (21). A rotating shaft (222) is fixedly connected to the top of the universal roller frame (221). The rotating shaft (222) is rotatably sleeved inside the reinforcing base (21) through a bearing.

3. The hydrogen peroxide low-temperature plasma sterilizer according to claim 2, characterized in that: The universal roller frame (221) is internally connected to a movable roller (223). The central axis of the movable roller (223) is perpendicular to the central axis of the rotation axis (222), but not in the same vertical plane.

4. The hydrogen peroxide low-temperature plasma sterilizer according to claim 3, characterized in that: The movable roller (223) is fixedly sleeved with a support transmission rod (224). The two ends of the support transmission rod (224) pass through the movable roller (223) and extend to the front and rear sides of the universal roller frame (221). It is rotatably sleeved on the front and rear sides of the universal roller frame (221) through bearings. The two ends of the movable roller (223) are connected to the linkage assembly (24).

5. A hydrogen peroxide low-temperature plasma sterilizer according to claim 4, characterized in that: The linkage component (24) includes a linkage ring (241) sleeved on the outside of the roller assembly (22). Below the linkage ring (241) are two linkage frames (245) located on the front and rear sides of the universal roller frame (221). The far ends of the two linkage frames (245) rotate with the roller assembly (22) and are always located on the outside of the linkage ring (241). The near ends of the two linkage frames (245) rotate with the roller assembly (22) and are always located on the inside of the linkage ring (241). A positioning groove (243) is provided on both the front and rear sides of the universal roller frame (221).

6. A hydrogen peroxide low-temperature plasma sterilizer according to claim 5, characterized in that: A locking gear (244) is fixedly connected to the opposing surfaces of the two linkage frames (245). The locking gear (244) is slidably engaged inside the positioning slide groove (243). A transmission gear (242) is provided below the positioning slide groove (243). The transmission gear (242) is fixedly connected to the end of the support transmission rod (224). There is a gap between the locking gear (244) and the transmission gear (242). The locking gear (244) slides down along the inside of the positioning slide groove (243) and finally meshes with the top of the transmission gear (242).

7. A hydrogen peroxide low-temperature plasma sterilizer according to claim 5, characterized in that: The anti-tipping assembly (23) includes a sealing cavity (231) opened in the reinforcing base (21). One end of the sealing cavity (231) is horizontal and the other end is vertical. A sealing cover plate (232) is embedded in the top of the horizontal cavity. A counterweight piston column (234) is opened in the sealing cover plate (232) away from the vertical end. The two ends of the counterweight piston column (234) are respectively connected to the two sides of the sealing cover plate (232). The bottom of the vertical shape extends to the bottom of the reinforcing base (21).

8. A hydrogen peroxide low-temperature plasma sterilizer according to claim 7, characterized in that: A counterweight piston column (234) is sealed between the inside of the sealed cavity (231) and the bottom of the encapsulation cover plate (232). The outer surfaces of the counterweight piston column (234), the encapsulation cover plate (232), and the inner wall of the sealed cavity (231) are all smooth. One end of the counterweight piston column (234) is restricted by the return spring (235) so that there is a distance between the other end of the counterweight piston column (234) and the vertical end of the sealed cavity (231). The end of the outer surface of the counterweight piston column (234) near the vent hole (233) is connected to the return spring (235) located below the vent hole (233). The other end of the return spring (235) is connected to the inner wall of the sealed cavity (231). The vertical end of the inner cavity of the sealing cavity (231) is fitted with a linkage piston rod (236). The lower end of the linkage piston rod (236) passes through the sealing cavity (231) and extends to the bottom of the reinforcing base (21) and is connected to the top of the linkage ring (241).

Images