A rotating biosafety cabinet

Abstract

This invention relates to the field of biosafety cabinet technology, specifically providing a rotary biosafety cabinet including a sterilization mechanism. The sterilization mechanism comprises a sterilization chamber, a drive assembly, and a sterilization component, both installed within the sterilization chamber. The upper end of the sterilization chamber has a waste inlet. The sterilization component includes a rotating shaft, rotating blades, a mounting cylinder, a filter plate, and a sorting and collection box. The mounting cylinder is vertically positioned above the sorting and collection box. The mounting cylinder, filter plate, drive assembly, and rotating blades work together, and with the sterilization of the disinfectant, toxic and harmful substances on the surface of the waste material are easily dislodged. This also facilitates the collection of sterilized waste and used waste liquid, greatly simplifying waste disposal for laboratory personnel. Furthermore, the sterilization process removes toxic and harmful substances from the waste, thus preventing these substances from affecting the quality of the external environment.

Description

Technical Field

[0001] This invention relates to the field of biosafety cabinet technology, and more specifically, to a rotary biosafety cabinet. Background Technology

[0002] Biosafety cabinets are designed to protect the operator, the laboratory environment, and the experimental materials from exposure to infectious aerosols and splashes that may be generated during the handling of infectious experimental materials such as primary cultures, bacterial and viral strains, and diagnostic specimens.

[0003] In existing technologies, after sampling some biological waste that is harmful to humans, the experimenter needs to discard it after the experiment. However, most biosafety cabinets are not equipped with waste disposal devices. On the one hand, this causes great inconvenience for the experimenter when handling waste; on the other hand, the exhaust device in the biosafety cabinet will draw toxic and harmful liquids and volatile toxic and harmful substances on the waste into the external environment, which will greatly affect the quality of the external environment. Summary of the Invention

[0004] The problem solved by this invention is that existing biosafety cabinets are not conducive to laboratory personnel handling waste and can easily cause toxic and harmful substances on the waste to be released into the external environment.

[0005] To address the above problems, the present invention proposes the following technical solution:

[0006] A rotary biosafety cabinet includes a disinfection mechanism, which comprises a disinfection chamber, a drive assembly, and a disinfection component. The drive assembly and the disinfection component are both installed inside the disinfection chamber, and the upper end of the disinfection chamber is provided with a waste inlet.

[0007] The disinfection assembly includes a rotating shaft, rotating fan blades, a mounting cylinder, filter plates, and a sorting and collection box. The mounting cylinder is vertically positioned above the sorting and collection box. Multiple placement slots are evenly spaced along the mounting cylinder's axial direction, and a filter plate is inserted into each slot. The filter plate has perforations for waste to pass through. The rotating shaft is rotatably mounted above the sorting and collection box and is located in the middle of the mounting cylinder, coaxially with the cylinder. A driving assembly drives the rotating shaft to rotate. Multiple rotating fan blades are evenly spaced along the outer wall of the rotating shaft's axial direction. Each rotating fan blade corresponds to a filter plate, and each blade is positioned on its corresponding filter plate.

[0008] The rotary biosafety cabinet provided by this invention has, but is not limited to, the following beneficial effects compared to existing technologies:

[0009] When processing waste, firstly, some disinfectant is introduced into the disinfection tank through the waste inlet. Then, the waste is fed into the disinfection tank through the waste inlet, falling onto the filter plate inside the mounting cylinder. Simultaneously, the drive assembly drives the rotating shaft to rotate, which in turn drives the rotating fan blades on the filter plate. During the rotation of the fan blades, on the one hand, the waste on the filter plate moves, causing collisions between multiple pieces of waste and friction between the waste and the filter plate. This facilitates the removal of toxic and harmful substances from the waste. In addition, the disinfection process with the disinfectant further enhances the disinfection effect. On the other hand, the rotating fan blades push the waste through the holes on the upper layer of the filter plate to the lower layer, thus helping the disinfected waste fall into the sorting collection box for collection. The used waste liquid is also... The waste material falls through the filter holes into the sorting collection box and is collected separately. Some disinfected waste material that has not fallen off the filter plate will remain on the filter plate. When the filter plate is pulled out of the placement slot, the disinfected waste material and used waste liquid remaining on the filter plate are blocked by the side wall of the mounting cylinder, thus remaining in the mounting cylinder and falling into the sorting collection box for separate collection. The mounting cylinder, filter plate, drive assembly and rotating fan blades work together, and the disinfection of the disinfectant helps to remove toxic and harmful substances from the surface of the waste material and facilitates the collection of disinfected waste material and used waste liquid. On the one hand, it provides great convenience for the laboratory personnel to handle waste. On the other hand, the waste material after disinfection is free of toxic and harmful substances, thereby preventing toxic and harmful substances from affecting the quality of the external environment.

[0010] Preferably, the sorting and collection box includes a box body, a support portion, and a protrusion portion. The box body has an upward-facing opening. The support portion is disposed in the middle of the box body. The protrusion portion is fixed to the upper surface of the support portion and protrudes from the opening. A first collection cavity is provided in communication between the protrusion portion and the support portion. A plurality of first filter holes are evenly spaced on the surface of the protrusion portion, and the first filter holes are used to communicate with the first collection cavity.

[0011] Preferably, a second collection cavity is formed between the side wall of the support portion and the inner side wall of the box body, and a plurality of second filter holes are evenly spaced along the circumferential direction on the side wall of the support portion, the second filter holes being used to communicate with the first collection cavity.

[0012] Preferably, the disinfection assembly further includes a connecting rod and an electric telescopic rod. The connecting rod is used to fix the filter plate to the side wall outside the placement slot and to connect with multiple filter plates. The electric telescopic rod is used to fix to the inner wall of the disinfection box, and the axis of the electric telescopic rod is perpendicular to the axis of the rotating shaft. The telescopic end of the electric telescopic rod is used to connect with the connecting rod.

[0013] Preferably, the placement groove is a semi-circular arc structure, the filter plate is a semi-circular plate, and multiple placement grooves are evenly spaced along the axial direction of the mounting cylinder to form a group of placement grooves. Two groups of semi-circular plates are symmetrically arranged and respectively inserted into the two groups of symmetrically arranged placement grooves. Two connecting rods are provided, and the two connecting rods are respectively used to connect to the side walls of the two symmetrically arranged groups of semi-circular plates.

[0014] Preferably, the rotating fan blade includes a rotating rod and a rotating tube, and a plurality of the rotating rods are evenly spaced along the circumferential direction on the outer wall of the rotating tube, and the rotating tube is used to be fixedly sleeved on the outer wall of the rotating shaft.

[0015] Preferably, the drive assembly includes a balance plate, a movable plate, a counterweight, a fixed part, and a spring. The balance plate is hinged to the upper end of the movable plate. One end of the balance plate is provided with a bearing groove for bearing the waste material. The end of the balance plate near the bearing groove is opposite to the waste inlet. The other end of the balance plate is provided with the counterweight.

[0016] The fixing part is used to be disposed below the movable plate, and the spring is used to connect the movable plate and the fixing part.

[0017] Preferably, a liquid storage tank is provided on the end of the balance plate away from the bearing tank, and the disinfection mechanism further includes a liquid storage box for storing disinfectant. The liquid storage box is fixed to the inner wall of the disinfection box and is located on one side of the moving plate. The end of the balance plate near the liquid storage tank is used to extend into the liquid storage box and scoop up the disinfectant through the liquid storage tank.

[0018] Preferably, the drive assembly further includes a fixed rack, a transmission gear, a first bevel gear, and a second bevel gear. The fixed rack is provided on the side wall of the moving plate facing the liquid storage box. The transmission gear is fixedly connected to one end of the first bevel gear. The transmission gear and the first bevel gear are integrally fixed to the lower end of the liquid storage box, and the transmission gear is used to mesh with the fixed rack. The second bevel gear is used to be mounted on the rotating shaft, and the second bevel gear is used to mesh with the first bevel gear.

[0019] Preferably, the rotary biosafety cabinet further includes a cabinet body, with an inlet provided through the bottom plate of the cabinet body, and the disinfection mechanism is installed at the lower end of the bottom plate of the cabinet body, with the waste inlet aligned with the inlet. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the rotary biosafety cabinet according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the disinfection mechanism according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the disinfection mechanism according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the driving component structure according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Disinfection box, 2. Drive assembly, 21. Balance plate, 210. Support tank, 2100. Liquid storage tank, 22. Moving plate, 23. Fixing part, 24. Spring, 25. Fixing rack, 26. Transmission gear, 27. First bevel gear, 28. Second bevel gear, 3. Disinfection assembly, 31. Rotating shaft, 32. Rotating fan blade, 321. Rotating rod, 322. Rotating tube, 33. Mounting cylinder, 34. Filter plate, 340. Leakage hole, 35. Classification collection box, 351. Box body, 352. Support part, 353. Protrusion, 354. First filter hole, 355. Second filter hole, 356. Second collection chamber, 36. Placement slot, 37. Connecting rod, 38. Electric telescopic rod, 4. Liquid storage box, 5. Cabinet, 50. Inlet. Detailed Implementation

[0026] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0027] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 invention 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 invention.

[0028] It should be noted that in the XYZ coordinate system provided in this article, the positive direction of the X-axis represents the right, and the negative direction of the X-axis represents the left; the positive direction of the Y-axis represents the front, and the negative direction of the Y-axis represents the back; the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom. The meanings of the Z-axis, X-axis, and Y-axis are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0029] See Figures 1-4This invention provides a rotary biosafety cabinet, including a disinfection mechanism. The disinfection mechanism includes a disinfection chamber 1, a drive assembly 2, and a disinfection component 3. Both the drive assembly 2 and the disinfection component 3 are installed inside the disinfection chamber 1. The upper end of the disinfection chamber 1 has a waste inlet. The disinfection component 3 includes a rotating shaft 31, a rotating fan blade 32, a mounting cylinder 33, a filter plate 34, and a sorting collection box 35. The mounting cylinder 33 is vertically positioned above the sorting collection box 35. The mounting cylinder 33 has multiple placement slots 36 evenly spaced along its axial direction. Each placement slot 36... A filter plate 34 is inserted into the 6, and the filter plate 34 is provided with a leakage hole 340 for waste to pass through; the rotating shaft 31 is rotatably mounted above the sorting collection box 35 and is located in the middle of the mounting cylinder 33 and is coaxially arranged with the mounting cylinder 33; the driving assembly 2 is used to drive the rotating shaft 31 to rotate; a plurality of rotating fan blades 32 are evenly spaced along the axial direction on the outer wall of the rotating shaft 31, and the rotating fan blades 32 correspond one-to-one with the filter plate 34, and each rotating fan blade 32 is used to be located on the corresponding filter plate 34.

[0030] In this embodiment, when processing waste, firstly, some disinfectant is introduced into the disinfection tank 1 through the waste inlet. Then, the waste is thrown into the disinfection tank 1 through the waste inlet, and the waste falls onto the filter plate 34 inside the mounting cylinder 33. Simultaneously, the drive assembly 2 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the rotating fan blades 32 on the filter plate 34 to rotate. During the rotation of the rotating fan blades 32, on the one hand, the waste on the filter plate 34 moves on the filter plate 34, thereby causing multiple pieces of waste to collide and rub against the filter plate 34, which helps to remove toxic and harmful substances from the waste. In addition, the disinfection operation of the disinfectant helps to improve the disinfection effect. On the other hand, the rotating fan blades 32 push the waste from the holes 340 on the upper layer of the filter plate 34 to the lower layer of the filter plate 34, which helps the waste fall into the sorting collection box 35 after disinfection. The waste liquid is collected, and the used waste liquid also falls from the filter holes into the sorting collection box 35 for sorting and collection. Some disinfected waste that has not fallen off will remain on the filter plate 34. When the filter plate 34 is pulled out from the placement groove 36, the disinfected waste and used waste liquid remaining on the filter plate 34 are blocked by the side wall of the mounting cylinder 33 and thus remain in the mounting cylinder 33 and fall into the sorting collection box 35 for sorting and collection. The mounting cylinder 33, the filter plate 34, the drive assembly 2 and the rotating fan blade 32 cooperate with each other. With the disinfection of the disinfectant, it is beneficial to make toxic and harmful substances on the surface of the waste fall off and to facilitate the collection of the disinfected waste and used waste liquid. On the one hand, it provides great convenience for the laboratory personnel to handle the waste. On the other hand, the waste after disinfection is free of toxic and harmful substances, thereby avoiding the impact of toxic and harmful substances on the quality of the external environment.

[0031] See Figure 2 Preferably, the sorting and collection box 35 includes a box body 351, a support portion 352, and a protrusion 353. The box body 351 has an upward opening. The support portion 352 is disposed in the middle of the box body 351. The protrusion 353 is fixed to the upper surface of the support portion 352 and protrudes from the opening. A first collection cavity is provided in communication between the protrusion 353 and the support portion 352. A plurality of first filter holes 354 are evenly spaced on the surface of the protrusion 353. The first filter holes 354 are used to communicate with the first collection cavity.

[0032] Specifically, the lower end of the rotating shaft 31 is rotatably mounted on the top of the protrusion 353 via a bearing, and the mounting cylinder 33 is fixed inside the disinfection box 1 by a fixing rod so that the mounting cylinder 33 is located above the sorting collection box 35. Alternatively, the support cylinder is fixed to the upper end of the protrusion 353 or the box body 351 by a support rod.

[0033] In this embodiment, the disinfected waste material first falls onto the protrusion 353 through the mounting cylinder 33, and the waste liquid on the surface of the waste material flows into the first collection chamber through the first filter hole 354 and is collected.

[0034] See Figure 2 Preferably, a second collection cavity 356 is formed between the side wall of the support portion 352 and the inner side wall of the box body 351. The side wall of the support portion 352 is provided with a plurality of second filter holes 355 evenly spaced along its circumferential direction. The second filter holes 355 are used to communicate with the first collection cavity.

[0035] Specifically, the protrusion 353 is a partially spherical structure or a conical structure.

[0036] In this embodiment, due to the special structure of the protrusion 353, the waste material continues to roll into the second collection chamber 356, and the waste liquid on the surface of the waste material falls from the surface of the waste material and flows into the first collection chamber through the second filter hole 355 and is collected. Thus, the disinfected waste material is collected into the second collection chamber 356, and the used waste liquid is collected into the first collection chamber, realizing classified collection. The structure is relatively simple and convenient and flexible to use, and has certain practicality.

[0037] See Figure 3 Preferably, the disinfection assembly 3 further includes a connecting rod 37 and an electric telescopic rod 38. The connecting rod 37 is used to fix the filter plate 34 to the side wall outside the placement slot 36 and to connect with multiple filter plates 34. The electric telescopic rod 38 is used to fix to the inner wall of the disinfection box 1, and the axis of the electric telescopic rod 38 is perpendicular to the axis of the rotating shaft 31. The telescopic end of the electric telescopic rod 38 is used to connect with the connecting rod 37.

[0038] Specifically, the connecting rod 37 is positioned in the same direction as the axis of the rotating shaft 31.

[0039] In this embodiment, when some disinfected and unfallen waste remains on the filter plate 34, the electric push rod drives the connecting rod 37 and the filter plate 34 to move, thereby pulling the filter plate 34 out of the placement slot 36. The disinfected waste and used waste liquid remaining on the filter plate 34 are blocked by the side wall of the mounting cylinder 33 and remain in the mounting cylinder 33, falling from the mounting cylinder 33 into the sorting collection box 35 for sorting and collection. The electric push rod and the connecting rod 37 enable the automatic removal of multiple filter plates 34 at the same time, which helps to improve the work efficiency of the operator.

[0040] See Figure 3 Preferably, the placement groove 36 has a semi-circular arc structure, the filter plate 34 is a semi-circular plate, and multiple placement grooves 36 are evenly spaced along the axial direction of the mounting cylinder 33 to form a group of placement grooves 36. Two groups of semi-circular plates are symmetrically arranged and respectively inserted into the two groups of symmetrically arranged placement grooves 36. Two connecting rods 37 are provided, and the two connecting rods 37 are respectively used to connect to the side walls of the two symmetrically arranged groups of semi-circular plates.

[0041] Specifically, a semi-circular hole is provided in the middle of the semi-circular plate, the two filter plates 34 are spliced ​​together to form an integral circular plate, and the two semi-circular holes are spliced ​​together to form a complete circular hole, and the rotating shaft 31 is used to pass through the complete circular hole.

[0042] In this embodiment, the structure of the placement groove 36 can avoid damaging the overall structure of the mounting cylinder 33, and can increase the area occupied by the filter plate 34 in the mounting cylinder 33 within a certain range, so that the waste can move in space on the filter plate 34 to improve the disinfection effect, and also helps to ensure that the mounting cylinder 33 will not break to maintain the overall structure.

[0043] See Figure 3 Preferably, the rotating fan blade 32 includes a rotating rod 321 and a rotating tube 322. The outer wall of the rotating tube 322 is evenly spaced with a plurality of the rotating rods 321 along its circumferential direction. The rotating tube 322 is used to be fixedly sleeved on the outer wall of the rotating shaft 31.

[0044] In this embodiment, the rotating shaft 31 drives the rotating fan blade 32 to rotate, which in turn drives the waste material to rotate on the filter plate 34. During the rotation process, the contact between the disinfectant and the waste material and the collision between the waste materials are increased, which helps to remove harmful substances attached to the waste material and improves the disinfection effect of the disinfectant on the waste material.

[0045] See Figure 4Preferably, the drive assembly 2 includes a balance plate 21, a moving plate 22, a counterweight, a fixing part 23, and a spring 24. The balance plate 21 is hinged to the upper end of the moving plate 22. One end of the balance plate 21 is provided with a bearing groove 210 for bearing the waste material. The end of the balance plate 21 near the bearing groove 210 is opposite to the waste inlet. The other end of the balance plate 21 is provided with the counterweight. The fixing part 23 is fixed inside the disinfection box 1 and is located below the moving plate 22. The spring 24 is connected between the moving plate 22 and the fixing part 23.

[0046] In this embodiment, when no waste material is input, the counterweight causes the height of the end of the balance plate 21 near the bearing groove 210 to be higher than the height of the end of the balance plate 21 where the counterweight is located. When the waste material is input into the disinfection box 1 from the waste inlet, the waste material first falls into the bearing groove 210. When the weight of the waste material in the bearing groove 210 exceeds the weight of the counterweight, the end of the balance plate 21 near the bearing groove 210 rotates downwards, simultaneously causing... When the movable plate 22 moves downward, and the balance plate 21 rotates to its lowest position near the end of the bearing groove 210, the bearing groove 210 is tilted, and the waste material in the bearing groove 210 falls from the bearing groove 210 onto the filter plate 34. The fixing part 23 and the spring 24 provide a certain buffer when the movable plate 22 moves downward and the balance plate 21 rotates, preventing the waste material from being damaged by excessive force when it falls onto the filter plate 34.

[0047] See Figure 4 Preferably, a liquid storage tank 2100 is provided on the end of the balance plate 21 away from the bearing tank 210. The disinfection mechanism also includes a liquid storage box 4 for storing disinfectant. The liquid storage box 4 is fixed to the inner wall of the disinfection box 1 and is located on one side of the moving plate 22. The end of the balance plate 21 near the liquid storage tank 2100 is used to extend into the liquid storage box 4 and scoop up the disinfectant through the liquid storage tank 2100.

[0048] In this embodiment, when the weight of the waste material in the bearing tank 210 exceeds the weight of the counterweight, the end of the balance plate 21 near the bearing tank 210 rotates downwards. At the same time, the end of the balance plate 21 near the liquid storage tank 2100 scoops up the disinfectant from the liquid storage box 4 through the liquid storage tank 2100 and rotates upwards. During the upward rotation of the end of the balance plate 21 near the liquid storage tank 2100, the liquid storage tank 2100 tilts, and the disinfectant in the liquid storage tank 2100 flows out from the liquid storage tank 2100 into the disinfection box 1, so as to automatically release the disinfectant to disinfect the waste liquid in the disinfection box 1.

[0049] See Figure 4 Preferably, the drive assembly 2 further includes a fixed rack 25, a transmission gear 26, a first bevel gear 27, and a second bevel gear 28. The fixed rack 25 is provided on the side wall of the moving plate 22 facing the liquid storage box 4. The transmission gear 26 is fixedly connected to one end of the first bevel gear 27. The transmission gear 26 and the first bevel gear 27 are integrally fixed to the lower end of the liquid storage box 4, and the transmission gear 26 is used to mesh with the fixed rack 25. The second bevel gear 28 is used to be mounted on the rotating shaft 31, and the second bevel gear 28 is used to mesh with the first bevel gear 27.

[0050] In this embodiment, as the movable plate 22 moves downward under force, the fixed rack 25 engages with the transmission gear 26, causing the transmission gear 26 to rotate, which in turn drives the first bevel gear 27 to rotate. The first bevel gear 27 and the second bevel gear 28 engage, causing the second bevel gear 28 to rotate, which in turn drives the rotating shaft 31 to rotate. The interaction between the balance plate 21, the movable plate 22, the counterweight, the fixed rack 25, the transmission gear 26, the first bevel gear 27, and the second bevel gear 28 achieves the purpose of driving the rotating shaft 31. The rotation of the rotating shaft 31 then drives the rotating fan blades 32 to rotate, which in turn drives the waste material to rotate. This increases the collision between the waste materials, allowing toxic and harmful substances adhering to the waste materials to fall off more thoroughly, and also increases the contact area between the waste materials and the disinfectant, achieving a better disinfection effect.

[0051] See Figure 1 Preferably, the rotary biosafety cabinet further includes a cabinet body 5, with an inlet 50 extending through the bottom plate of the cabinet body 5. The disinfection mechanism is installed at the lower end of the bottom plate of the cabinet body 5, and the waste inlet is aligned with the inlet 50.

[0052] In this embodiment, the waste generated after the sample is tested in the cabinet 5 is put into the disinfection box 1 through the inlet 50.

[0053] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A rotary biosafety cabinet, characterized in that, The disinfection mechanism includes a disinfection box (1), a drive assembly (2) and a disinfection assembly (3). The drive assembly (2) and the disinfection assembly (3) are both installed inside the disinfection box (1). The upper end of the disinfection box (1) is provided with a waste inlet. The disinfection component (3) includes a rotating shaft (31), rotating fan blades (32), a mounting cylinder (33), a filter plate (34), and a sorting collection box (35). The mounting cylinder (33) is vertically positioned above the sorting collection box (35). The mounting cylinder (33) has multiple placement slots (36) evenly spaced along its axial direction. Each placement slot (36) contains a filter plate (34), and the filter plate (34) has perforations (340) for waste to pass through. The rotating shaft (31) The rotating shaft (31) is rotatably mounted above the sorting and collection box (35) and is located in the middle of the mounting cylinder (33) and coaxially arranged with the mounting cylinder (33). The driving component (2) is used to drive the rotating shaft (31) to rotate. The outer wall of the rotating shaft (31) is evenly spaced with a plurality of rotating fan blades (32) along its axial direction. The rotating fan blades (32) correspond one-to-one with the filter plates (34). Each rotating fan blade (32) is used to be located on the corresponding filter plate (34). The drive assembly (2) includes a balance plate (21), a moving plate (22), a counterweight, a fixing part (23), and a spring (24). The balance plate (21) is hinged to the upper end of the moving plate (22). One end of the balance plate (21) is provided with a bearing groove (210) for bearing the waste material. The end of the balance plate (21) near the bearing groove (210) is opposite to the waste inlet. The other end of the balance plate (21) is provided with the counterweight. The fixing part (23) is located below the moving plate (22). The spring (24) is connected between the moving plate (22) and the fixing part (23). A liquid storage tank (2100) is provided on the end of the balance plate (21) away from the bearing groove (210). The disinfection mechanism also includes a liquid storage box (4) for storing disinfectant. The liquid storage box (4) is fixed to the disinfection box (1). The balance plate (21) is located on the inner wall of the liquid storage box (4) and is disposed on one side of the moving plate (22). The end of the balance plate (21) near the liquid storage tank (2100) is used to extend into the liquid storage box (4) and scoop up the disinfectant through the liquid storage tank (2100). The drive assembly (2) also includes a fixed rack (25), a transmission gear (26), a first bevel gear (27) and a second bevel gear (28). The fixed rack (25) is disposed on the side wall of the moving plate (22) facing the liquid storage box (4). The transmission gear (26) is fixedly connected to one end of the first bevel gear (27). The transmission gear (26) and the first bevel gear (27) are fixedly fixed to the lower end of the liquid storage box (4) and the transmission gear (26) is used to mesh with the fixed rack (25). The second bevel gear (28) is used to be installed on the rotating shaft (31) and the second bevel gear (28) is used to mesh with the first bevel gear (27).

2. The rotary biosafety cabinet according to claim 1, characterized in that, The sorting and collection box (35) includes a box body (351), a support part (352), and a protrusion part (353). The box body (351) has an upward opening. The support part (352) is disposed in the middle of the box body (351). The protrusion part (353) is fixed to the upper surface of the support part (352) and protrudes from the opening. The protrusion part (353) and the support part (352) are connected to each other and a first collection cavity is provided. The surface of the protrusion part (353) is provided with a plurality of first filter holes (354) evenly spaced. The first filter holes (354) are connected to the first collection cavity.

3. The rotary biosafety cabinet according to claim 2, characterized in that, A second collection cavity (356) is formed between the side wall of the support part (352) and the inner side wall of the box body (351). The side wall of the support part (352) is provided with a plurality of second filter holes (355) evenly spaced along its circumferential direction. The second filter holes (355) are used to communicate with the first collection cavity.

4. The rotary biosafety cabinet according to claim 1, characterized in that, The disinfection assembly (3) further includes a connecting rod (37) and an electric telescopic rod (38). The connecting rod (37) is used to fix the filter plate (34) to the side wall outside the placement slot (36) and to connect with multiple filter plates (34). The electric telescopic rod (38) is used to fix to the inner wall of the disinfection box (1), and the axis of the electric telescopic rod (38) is perpendicular to the axis of the rotating shaft (31). The telescopic end of the electric telescopic rod (38) is used to connect with the connecting rod (37).

5. The rotary biosafety cabinet according to claim 4, characterized in that, The placement groove (36) is a semi-circular arc structure, and the filter plate (34) is a semi-circular plate. Multiple placement grooves (36) are evenly spaced along the axial direction of the mounting cylinder (33) to form a set of placement grooves (36). The two sets of semi-circular plates are symmetrically arranged and respectively inserted into the two sets of symmetrically arranged placement grooves (36). There are two connecting rods (37), and the two connecting rods (37) are respectively used to connect to the side walls of the two sets of symmetrically arranged semi-circular plates.

6. The rotary biosafety cabinet according to claim 1, characterized in that, The rotating fan blade (32) includes a rotating rod (321) and a rotating tube (322). The outer wall of the rotating tube (322) is evenly spaced with multiple rotating rods (321) along its circumferential direction. The rotating tube (322) is used to be fixedly sleeved on the outer wall of the rotating shaft (31).

7. The rotary biosafety cabinet according to claim 1, characterized in that, It also includes a cabinet (5), on which an inlet (50) is provided through the bottom plate of the cabinet (5). The disinfection mechanism is installed at the lower end of the bottom plate of the cabinet (5) and the waste inlet is aligned with the inlet (50).

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