Low-temperature plasma disinfection device

Abstract

The utility model discloses a low-temperature plasma disinfection device, and belongs to the technical field of disinfection devices. A low-temperature plasma disinfection device comprises a cabinet body and a plasma generator fixedly installed on the back of the cabinet body, and further comprises a main pipeline arranged on the back of the cabinet body, and a secondary pipeline arranged on the back of the cabinet body; the extension pipe is fixedly connected to the cabinet body, the two ends of the extension pipe extend out of the back of the cabinet body and extend into the cabinet body respectively, the end, extending into the cabinet body, of the extension pipe is fixedly connected with a conveying pipe, and an air hole penetrating through the conveying pipe is formed in the conveying pipe; by starting the plasma generator, plasmas are introduced into the cabinet body from the lower end and the upper end of the rear side of the cabinet body through the main pipeline and the secondary pipeline, and meanwhile, the plasmas are introduced into the front side of the cabinet body from the air holes through the extension pipe and the conveying pipe to form convection, so that gas distribution is more uniform, and the disinfection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of disinfection device technology, and in particular to a low-temperature plasma disinfection device. Background Technology

[0002] A disinfection cabinet is a household appliance that uses ultraviolet light, ozone, hot air, plasma, or other methods to disinfect tableware, kitchen utensils, or other items. It is mainly used to kill bacteria, viruses, and other pathogenic microorganisms on the surface of items, ensuring that the items used are more hygienic and safe. Disinfection cabinets are widely used in home kitchens, restaurants, hotels, and other places.

[0003] Low-temperature plasma disinfection devices are a type of disinfection cabinet that mainly utilizes low-temperature plasma technology for disinfection. They are widely used in medical, food, and air purification fields. Low-temperature plasma is an ionized gas generated at room temperature with high reactivity and strong oxidizing properties. It can effectively kill bacteria, viruses, fungi, and other microorganisms, while avoiding the damage of high temperatures to items (such as food and medical equipment). It is suitable for disinfecting temperature-sensitive items.

[0004] In existing low-temperature plasma sterilization devices, plasma gas is generally released into the cabinet through a main pipe. However, since the space inside the cabinet is generally large, releasing the gas from only one pipe will result in uneven distribution of plasma gas inside the cabinet, incomplete sterilization, and affect the sterilization effect. Utility Model Content

[0005] The purpose of this invention is to solve the problem that releasing gas from only one pipe will lead to uneven distribution of plasma gas inside the cabinet, incomplete disinfection, and affect the disinfection effect. Therefore, a low-temperature plasma disinfection device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A low-temperature plasma sterilization device includes a cabinet and a plasma generator fixedly installed on the back of the cabinet. It also includes: a main pipe disposed on the back of the cabinet, wherein a secondary pipe is also disposed on the back of the cabinet; an extension pipe fixedly connected to the cabinet, wherein the two ends of the extension pipe extend out of the back of the cabinet and into the interior of the cabinet, respectively, and a conveying pipe is fixedly connected to the end of the extension pipe that extends into the cabinet, and the conveying pipe has an air hole that penetrates the conveying pipe.

[0008] To allow air to circulate from the front of the cabinet into the interior, the conveying pipe is preferably in the shape of an inverted U, and the air vents are located on the two vertical sections of the conveying pipe.

[0009] To ensure a more uniform gas distribution, preferably, the secondary pipe is positioned above the main pipe, and two secondary pipes are provided, symmetrically positioned relative to the extension pipe.

[0010] To further disperse the gas introduced from the secondary pipe, preferably, two baffles are fixedly connected between the inner walls of the cabinet, and the two baffles are respectively arranged opposite to the output ports of the two secondary pipes.

[0011] For placing items, preferably, the cabinet is provided with a placement board and a collection board, the placement board is positioned above the collection board, the placement board has filter holes, and the top of the collection board is fixedly connected to a surrounding panel.

[0012] In order to adjust the position of the placement board according to the height of the items, two sets of symmetrically arranged mounting brackets are fixedly connected to the inner wall of the cabinet. The front side of the mounting brackets is provided with mounting grooves that match the placement board and the collection board, and the conveying pipe is located on the front side of the mounting brackets.

[0013] To facilitate opening and closing the cabinet door, preferably, a cabinet door is rotatably installed on the front side of the cabinet body, the cabinet door is provided with a buckle, and a locking block is provided on the cabinet body. The buckle and the locking block are engaged with each other, and a handle is fixedly installed on the buckle.

[0014] Compared with the prior art, the present invention provides a low-temperature plasma sterilization device, which has the following beneficial effects:

[0015] 1. This low-temperature plasma disinfection device, by activating the plasma generator, allows plasma to enter the cabinet from the lower and upper ends of the rear side through the main and secondary pipes. At the same time, the plasma passes through the extension pipe and the delivery pipe and enters the front side of the cabinet through the air vent, forming convection, which makes the gas distribution more uniform and improves the disinfection effect.

[0016] 2. This low-temperature plasma disinfection device, by activating the plasma generator, allows plasma to enter the cabinet from the lower and upper ends of the rear side through the main and secondary pipes. Simultaneously, the plasma passes through the extension pipe and delivery pipe and enters the front side of the cabinet through the air vent, forming convection, which makes the gas distribution more uniform and improves the disinfection effect. Attached Figure Description

[0017] Figure 1 A schematic diagram of the isometric structure of a low-temperature plasma sterilization device proposed in this utility model. Figure 1 ;

[0018] Figure 2 A schematic diagram of the isometric structure of a low-temperature plasma sterilization device proposed in this utility model. Figure 2 ;

[0019] Figure 3This is a schematic diagram of the internal structure of the cabinet of a low-temperature plasma disinfection device proposed in this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the cabinet of a low-temperature plasma sterilization device proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the cabinet extension pipe and delivery pipe structure of a low-temperature plasma sterilization device proposed in this utility model.

[0022] In the diagram: 1. Cabinet; 2. Plasma generator; 3. Main pipe; 4. Secondary pipe; 5. Extension pipe; 6. Delivery pipe; 7. Vent; 8. Placement plate; 9. Collection plate; 10. Enclosure; 11. Mounting rack; 12. Mounting slot; 13. Cabinet door; 14. Buckle; 15. Locking block; 16. Handle; 17. Baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example:

[0026] Reference Figures 1-5This utility model provides a low-temperature plasma sterilization device, including a cabinet 1 and a plasma generator 2 fixedly installed on the back of the cabinet 1. The plasma generator 2 generates plasma by exciting a gas (usually air or certain specific gases, such as nitrogen, oxygen, etc.) with an electric field. The plasma contains high-energy electrons, ions, free radicals, and ultraviolet rays. The temperature of the plasma during operation is usually low, generally not exceeding 60°C, which avoids damage to items (such as food, medical equipment, etc.) caused by high temperatures. It is suitable for sterilizing temperature-sensitive items. These components can effectively destroy the cell structure and DNA of microorganisms, thereby achieving a sterilization effect. The device also includes a main pipe 3, which is located on the back of the cabinet 1. The back is also equipped with a secondary pipe 4; an extension pipe 5 is fixedly connected to the cabinet 1, wherein the two ends of the extension pipe 5 extend out of the back of the cabinet 1 and into the interior of the cabinet 1, respectively. The end of the extension pipe 5 that extends into the cabinet 1 is fixedly connected to a conveying pipe 6. The conveying pipe 6 is vertically arranged and has air holes 7 that penetrate through it. The shape of the conveying pipe 6 is inverted U-shaped. The air holes 7 are arranged on the two vertical pipes of the conveying pipe 6. Each vertical pipe of the conveying pipe 6 has multiple air holes 7 arranged at equal intervals. The secondary pipe 4 is arranged above the main pipe 3. There are two secondary pipes 4. The two secondary pipes 4 are symmetrically arranged with respect to the extension pipe 5. The secondary pipe 4, the main pipe 3 and the extension pipe 5 are respectively connected to the output end of the plasma generator 2 through pipes.

[0027] During operation, by activating the plasma generator 2, plasma is introduced into the cabinet 1 from the lower and upper ends of the rear side of the cabinet 1 through the main pipe 3 and the secondary pipe 4. At the same time, the plasma is introduced into the front side of the cabinet 1 through the extension pipe 5 and the delivery pipe 6 through the air hole 7, forming convection, which makes the gas distribution more uniform and improves the disinfection effect.

[0028] Two baffles 17 are fixedly connected between the inner walls of the cabinet 1. The two baffles 17 are respectively set opposite to the output ports of the two secondary pipes 4. When the plasma enters the cabinet 1 from the secondary pipes 4, it will first rush towards the baffles 17. The baffles 17 disperse the gas, making the gas distribution more uniform and the disinfection more comprehensive. The cabinet 1 is equipped with a placement plate 8 and a collection plate 9. The number of placement plates 8 and collection plates 9 can be adjusted according to the applicability of the usage requirements. The placement plate 8 is set above the collection plate 9. The placement plate 8 has filter holes for filtering out dust particles on the items. The particles fall into the collection plate 9 through the filter holes. A surrounding plate 10 is fixedly connected to the top of the collection plate 9. The surrounding plate 10 is used to prevent dust from falling out of the surrounding plate 1. The cabinet 1 is fixedly connected to two sets of symmetrically arranged mounting brackets 11 on its inner wall. The front side of the mounting bracket 11 is provided with mounting slots 12 that match the placement plate 8 and the collection plate 9. Each set of mounting brackets 11 has four mounting brackets that are equidistant from each other. Each mounting bracket 11 has five mounting slots 12 that are equidistant from each other. The mounting slots 12 are used to adjust the position of the placement plate 8 and the collection plate 9. The conveying pipe 6 is located on the front side of the mounting bracket 11 and is offset from the mounting slots 12. The cabinet 1 is rotatably mounted with a cabinet door 13. The cabinet door 13 is provided with a buckle 14. The cabinet 1 is provided with a locking block 15. The buckle 14 and the locking block 15 are engaged with each other. The buckle 14 is fixedly mounted with a handle 16.

[0029] During operation, adjust the positions of the placement plate 8 and the collection plate 9 according to the height of the items to be disinfected, insert the placement plate 8 and the collection plate 9 into different mounting slots 12, and then place the items into the placement plate 8. Dust particles on the items are filtered out from the filter holes of the placement plate 8 and fall into the collection plate 9. To prevent dust from the items above from falling onto the items below, the collection plate 9 needs to be removed periodically to clean the dust on it.

[0030] When using this low-temperature plasma sterilization device, open the cabinet door 13, adjust the position of the placement plate 8 and the collection plate 9 according to the height of the items to be sterilized, insert the placement plate 8 and the collection plate 9 into different mounting slots 12, then place the items into the placement plate 8, and close the cabinet door 13.

[0031] Next, the plasma generator 2 is started. The plasma is introduced into the cabinet 1 from the lower and upper ends of the rear side of the cabinet 1 through the main pipe 3 and the secondary pipe 4. At the same time, the plasma is introduced into the front side of the cabinet 1 through the extension pipe 5 and the delivery pipe 6 through the air hole 7, forming convection, which makes the gas distribution more uniform and improves the disinfection effect. After disinfection is completed, the cabinet door 13 is opened and the items are taken out.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-temperature plasma sterilization device comprising a cabinet (1) and a plasma generator (2) fixedly installed at the back of the cabinet (1), characterized in that, Also includes: The main pipe (3) is located at the back of the cabinet (1). The back of the cabinet (1) is also provided with a secondary pipe (4); An extension tube (5) is fixedly connected to the cabinet (1). The two ends of the extension tube (5) extend out of the back of the cabinet (1) and into the interior of the cabinet (1), respectively. The end of the extension tube (5) that extends into the cabinet (1) is fixedly connected to a conveying tube (6). An air hole (7) is opened on the conveying tube (6) to penetrate the conveying tube (6).

2. The low-temperature plasma sterilization device of claim 1, wherein, The conveying pipe (6) is in the shape of an inverted U, and the air holes (7) are set on the two vertical pipes of the conveying pipe (6).

3. The low-temperature plasma sterilization device of claim 1, wherein, The secondary pipe (4) is located above the main pipe (3). There are two secondary pipes (4), which are symmetrically arranged with respect to the extension pipe (5).

4. The low-temperature plasma sterilization device of claim 1, wherein, Two baffles (17) are fixedly connected between the inner walls of the cabinet (1), and the two baffles (17) are respectively set opposite to the output ports of the two secondary pipes (4).

5. The low temperature plasma sterilization device of claim 1, wherein, The cabinet (1) is provided with a placement plate (8) and a collection plate (9). The placement plate (8) is located above the collection plate (9). The placement plate (8) has filter holes. The top of the collection plate (9) is fixedly connected to a surrounding plate (10).

6. A low temperature plasma sterilisation apparatus as claimed in claim 5, wherein, Two sets of symmetrically arranged mounting brackets (11) are fixedly connected to the inner wall of the cabinet (1). The front side of the mounting bracket (11) is provided with mounting grooves (12) that match the placement plate (8) and the collection plate (9). The conveying pipe (6) is located on the front side of the mounting bracket (11).

7. The low-temperature plasma sterilization device of claim 1, wherein, The cabinet (1) is rotatably mounted with a cabinet door (13) on the front side. The cabinet door (13) is provided with a buckle (14), and the cabinet (1) is provided with a locking block (15). The buckle (14) and the locking block (15) are engaged with each other, and a handle (16) is fixedly mounted on the buckle (14).

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