Biosafety cabinet with plasma sterilization and disinfection device

Abstract

The utility model discloses a biological safety cabinet with a plasma sterilization and disinfection device, which comprises a sealed safety cabinet body, the plasma sterilization and disinfection device, a safety cabinet working area, an air supply high-efficiency filter, a cloth bag, an air exhaust high-efficiency filter and a circulating fan, the air supply high-efficiency filter is arranged at the upper end of the safety cabinet working area, the air exhaust high-efficiency filter is arranged at the top end of an inner cavity of the safety cabinet body, the cloth bag is connected with the air exhaust high-efficiency filter and the air supply high-efficiency filter, an air outlet of the circulating fan is connected with the cloth bag, and the plasma sterilization and disinfection device is arranged on the inner wall of one side of the safety cabinet body. The biosafety cabinet has the beneficial effects that by arranging the circulating fan and the plasma sterilization and disinfection device, circulating plasma gas can be generated in the biosafety cabinet, disinfection is carried out through the plasma gas, and disinfection is carried out after the biosafety cabinet is closed, so that disinfection and disinfection can be more thorough and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of biosafety cabinet disinfection, in particular to a biosafety cabinet provided with a plasma sterilization and disinfection device. Background Art

[0002] Biological safety cabinets are important equipment for biological experiments and medical operations in laboratories, hospitals and other places, and can protect experimental items and work areas. However, due to long-term use, bacteria may breed in the biological safety cabinet. If it is not sterilized in time, it will affect the safety of the stored biological samples.

[0003] However, existing biological safety cabinets have certain limitations in terms of sterilization and disinfection. For example, wiping with bleach or alcohol, especially wiping with bleach, requires wiping again with sterile water to remove corrosive substances. These disinfection methods have problems such as incomplete disinfection, slow speed, and harm to the human body and the environment. Utility Model Content

[0004] The utility model aims to provide a biological safety cabinet equipped with a plasma sterilization and disinfection device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biological safety cabinet equipped with a plasma sterilization and disinfection device, comprising a sealed safety cabinet body, a plasma sterilization and disinfection device, a safety cabinet working area, an air supply high-efficiency filter, a cloth bag, an exhaust high-efficiency filter, and a circulating fan. The safety cabinet working area is arranged at the bottom end of the inner cavity of the safety cabinet body, the air supply high-efficiency filter is arranged at the upper end of the safety cabinet working area, the exhaust high-efficiency filter is arranged at the top end of the inner cavity of the safety cabinet body, the cloth bag connects the exhaust high-efficiency filter and the air supply high-efficiency filter, the air outlet of the circulating fan is connected to the cloth bag, and the plasma sterilization and disinfection device is arranged on the inner wall of one side of the safety cabinet body.

[0006] Preferably, the cloth bag is in the shape of a straight cylinder with upper and lower openings, and the diameter of the upper opening is smaller than the diameter of the lower opening.

[0007] Preferably, the plasma sterilization and disinfection device is arranged at the middle position of the left inner wall of the safety cabinet body, and the circulating fan is arranged on the side of the cloth bag close to the plasma sterilization and disinfection device, and the plasma sterilization and disinfection device is used to generate plasma.

[0008] Preferably, air outlets are provided on the side and bottom surfaces of the working area of ​​the safety cabinet.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model can generate circulating plasma gas in the biological safety cabinet by arranging a circulating fan and a plasma sterilization and disinfection device, and disinfection is performed by the plasma gas. The disinfection is performed after the biological safety cabinet is closed, which can make the disinfection and sterilization more thorough and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model.

[0011] In the figure: 1-safety cabinet body, 2-plasma sterilization and disinfection device, 3-safety cabinet working area, 4-air supply high efficiency filter, 5-cloth bag, 6-exhaust high efficiency filter, 7-circulation fan, 8-plasma. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] See also Figure 1 The utility model provides a technical solution: a biological safety cabinet equipped with a plasma sterilization and disinfection device, comprising: a sealed safety cabinet body 1, a plasma sterilization and disinfection device 2, a safety cabinet working area 3, an air supply high-efficiency filter 4, a cloth bag 5, an exhaust high-efficiency filter 6, and a circulating fan 7. The safety cabinet working area 3 is arranged at the bottom end of the inner cavity of the safety cabinet body 1, the air supply high-efficiency filter 4 is arranged at the upper end of the safety cabinet working area 3, the exhaust high-efficiency filter 6 is arranged at the top end of the inner cavity of the safety cabinet body 1, the cloth bag 5 connects the exhaust high-efficiency filter 6 and the air supply high-efficiency filter 4, the air outlet of the circulating fan 7 is connected to the cloth bag 5, and the plasma sterilization and disinfection device 6 is arranged on the inner wall of one side of the safety cabinet body 1.

[0014] Specifically, the cloth bag 5 is in the shape of a straight cylinder with upper and lower openings, and the diameter of the upper opening is smaller than the diameter of the lower opening.

[0015] Specifically, the plasma sterilization and disinfection device 2 is arranged at the middle position of the left inner wall of the safety cabinet body 1, and the circulating fan 7 is arranged on the side of the cloth bag 5 close to the plasma sterilization and disinfection device 6, and the plasma sterilization and disinfection device 2 is used to generate plasma 8.

[0016] Specifically, the side and bottom surfaces of the working area 3 of the safety cabinet are provided with air outlets.

[0017] Specifically, when in use, the plasma sterilization and disinfection device 2 generates plasma 8, and the circulation fan 7 operates to generate negative pressure in the working area 3 of the safety cabinet. The plasma 8 enters the cloth bag 5 along with the gas from the circulation fan 7, and a small amount of plasma is discharged from the safety cabinet body 1 from the exhaust high-efficiency filter 6. It and the plasma sink to the working area 3 of the safety cabinet along with the gas and then disperse into the safety cabinet body 1 from the holes on the side walls and the bottom.

[0018] During this process, the circulating fan 7 works to generate a circulating airflow, and the plasma sterilization and disinfection device 2 generates plasma 8. The sterilization effect of the plasma is utilized to achieve sterilization and disinfection of the working area 3 of the safety cabinet. The air supply high-efficiency filter 4 can effectively sterilize and disinfect the mesh structure that is difficult to clean and the hidden areas inside the safety cabinet.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biological safety cabinet equipped with a plasma sterilization and disinfection device, characterized in that: The invention comprises a sealed safety cabinet body (1), a plasma sterilization and disinfection device (2), a safety cabinet working area (3), an air supply high-efficiency filter (4), a cloth bag (5), an exhaust high-efficiency filter (6), and a circulating fan (7); the safety cabinet working area (3) is arranged at the bottom end of the inner cavity of the safety cabinet body (1); the air supply high-efficiency filter (4) is arranged at the top end of the safety cabinet working area (3); the exhaust high-efficiency filter (6) is arranged at the top end of the inner cavity of the safety cabinet body (1); the cloth bag (5) connects the exhaust high-efficiency filter (6) and the air supply high-efficiency filter (4); the air outlet of the circulating fan (7) is connected to the cloth bag (5); and the plasma sterilization and disinfection device (2) is arranged on the inner wall of one side of the safety cabinet body (1).

2. A biological safety cabinet equipped with a plasma sterilization and disinfection device according to claim 1, characterized in that: The cloth bag (5) is in the shape of a straight cylinder with upper and lower openings, and the diameter of the upper opening is smaller than the diameter of the lower opening.

3. A biological safety cabinet equipped with a plasma sterilization and disinfection device according to claim 1, characterized in that: The plasma sterilization device (2) is arranged at the middle position of the left inner wall of the safety cabinet body (1), the circulating fan (7) is arranged on the side of the cloth bag (5) close to the plasma sterilization device (2), and the plasma sterilization device (2) is used to generate plasma (8).

4. A biological safety cabinet equipped with a plasma sterilization and disinfection device according to claim 1, characterized in that: The side and bottom surfaces of the safety cabinet working area (3) are provided with air outlets.

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