Medical garbage can

Abstract

The utility model provides a medical garbage can and relates to the technical field of medical garbage cans. The medical garbage can comprises a can body. The first barrel cover is arranged at the top of the barrel body; the second can cover is arranged on the can body, and a final storage cavity is defined by the second can cover and the can body; wherein a buffering cavity is formed between the first can cover and the second can cover, and the first can cover and the second can cover are not opened at the same time. The first can cover and the second can cover are not opened at the same time, after the first can cover is opened and closed, the second can cover is opened, garbage in the buffering cavity enters the final storage cavity in the bottom of the can body, then the second can cover is closed, and the first can cover and the second can cover are sequentially opened. Therefore, the number of viruses in the final storage cavity transmitted to the external environment through the aerosol can be reduced, and the infection risk of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical waste bins, in particular to a medical waste bin. Background Art

[0002] Aerosol transmission refers to the situation where, under specific conditions, droplets lose water while suspended in the air, leaving only a nucleus composed of proteins and pathogens, forming droplet nuclei. These droplet nuclei can float to distant places in the form of aerosols, causing long-distance transmission.

[0003] Viruses can spread through aerosols in relatively closed environments, such as indoors. When laboratory or medical waste bins are opened and closed, viruses in the bins are likely to be carried out by aerosols, increasing the risk of infection in the environment. To address this phenomenon, existing waste disinfection devices are slow to take effect and cannot address the problem of aerosol transmission of viruses in medical waste bins. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the present invention provides a medical waste bin to improve the technical problem that viruses in the medical waste bin are easily spread by aerosols.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides a medical waste bin, comprising a bin body; a first bin cover, arranged on the top of the bin body; a second bin cover, arranged on the bin body, and the second bin cover and the bin body form a final storage cavity; wherein a buffer cavity is provided between the first bin cover and the second bin cover, and the first bin cover and the second bin cover are not opened at the same time.

[0006] In an exemplary embodiment of the present application, the barrel body includes a first barrel body and a second barrel body, the second barrel cover is arranged between the first barrel body and the second barrel body, and the buffer chamber is arranged in the space enclosed by the first barrel cover, the first barrel body and the second barrel cover.

[0007] In an exemplary embodiment of the present application, the first barrel cover includes a first delivery port and a first covering plate, and the first covering plate moves in a direction perpendicular to the axial direction of the first delivery port to open and close the first delivery port; the second barrel cover includes a second delivery port and a second covering plate, and the second covering plate moves in a direction perpendicular to the axial direction of the second delivery port to open and close the second delivery port.

[0008] In an exemplary embodiment of the present application, the projection of the top of the buffer cavity along the axial direction of the first delivery port covers the projection of the first delivery port along the axial direction of the first delivery port; the projection of the second delivery port along the axial direction of the second delivery port covers the projection of the bottom of the buffer cavity along the axial direction of the second delivery port.

[0009] In an exemplary embodiment of the present application, the diameter of the buffer cavity gradually decreases from the first delivery port to the second delivery port.

[0010] In an exemplary embodiment of the present application, a first driving mechanism is provided on the first barrel cover, and the first driving mechanism drives the first covering plate to rotate so as to open and close the first loading port.

[0011] In an exemplary embodiment of the present application, the first barrel cover, the second barrel cover and the first barrel body form a receiving cavity, and the first driving mechanism is disposed in the receiving cavity outside the buffer cavity.

[0012] In an exemplary embodiment of the present application, a plurality of first covering plates are provided, and the ends of the plurality of first covering plates cooperate to open and close the first delivery port; a first driving gear is provided on the first barrel cover, and the first driving mechanism drives the first driving gear to rotate; a first outer ring gear and a first inner ring gear meshing with the first driving gear are provided on the first barrel cover, and the first inner ring gear rotates around the axis of the first delivery port; a plurality of first driven gears meshing with the first inner ring gear are arranged in a circumferential array on the first inner ring gear, and the first driven gear is fixed to the first covering plate so that the first inner ring gear drives the first covering plate to rotate; the first driven gear meshes with the first outer ring gear.

[0013] In an exemplary embodiment of the present application, the first loading port is arranged in the middle part of the first outer gear ring; the end wall of the first covering plate is against the side wall of the adjacent first covering plate on one side, and when the first covering plate rotates, the end wall of the first covering plate moves along the side wall of the adjacent first covering plate.

[0014] In an exemplary embodiment of the present application, a diverter portion is provided at the bottom of the barrel body, and the diverter portion is provided in the middle of the inner bottom surface of the barrel body, and the diameter of the diverter portion increases from top to bottom along the axis direction of the barrel body.

[0015] In combination with the existing technology, the beneficial effects of the present invention are:

[0016] Existing medical waste bins have single-layer lids. When the lid is opened, viruses will spread into the air through the lid via aerosols, thereby increasing the risk of infection in the environment. The medical waste bin of the present application is provided with a first lid and a second lid, with a buffer chamber provided between the first lid and the second lid. The first lid and the second lid are opened at different times. After the first lid is opened and closed, the second lid is opened, and the waste in the buffer chamber enters the final storage chamber at the bottom of the barrel. Then the second lid is closed, and the first lid and the second lid are opened in sequence. This can reduce the amount of viruses in the final storage chamber that spread to the external environment via aerosols, thereby reducing the risk of infection for staff.

[0017] When the second barrel lid of the present application is opened, a small amount of virus will be transmitted to the buffer cavity through the aerosol, but the density of the aerosol is greater than that of the air, so the aerosol will fall back into the final storage cavity through the second barrel lid, making the aerosol distribution density in the buffer cavity small. When the first barrel lid is opened, the aerosol overflowing through the first barrel lid is very small, which effectively reduces the occurrence of virus-carrying aerosol overflowing into the environment when the barrel lid is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a three-dimensional schematic diagram of an exemplary medical waste bin for this application;

[0020] Figure 2 This is a front view of an exemplary medical waste bin for this application;

[0021] Figure 3 This is a top view of an exemplary medical waste bin for this application;

[0022] Figure 4 for Figure 3 Middle AA section cutaway view;

[0023] Figure 5 This is a schematic diagram of the structure of an exemplary first barrel cover portion of the present application;

[0024] Figure 6 for Figure 5 Schematic diagram after removing the first cover plate in the middle;

[0025] Figure 7 This is a schematic diagram of an exemplary second barrel cover of the present application;

[0026] Figure 8 This is a schematic diagram of the structure of an exemplary second barrel cover portion of the present application.

[0027] Component number description

[0028] 100, barrel body; 110, first barrel body; 120, second barrel body;

[0029] 200, first barrel cover; 210, first loading port; 220, first covering plate; 230, first driving gear; 240, first outer ring gear; 250, first inner ring gear; 260, first driven gear; 270, first upper cover; 271, first clamping plate; 280, first lower cover;

[0030] 300, second barrel cover; 310, second loading port; 320, second covering plate; 330, second driving gear; 340, second outer ring gear; 350, second inner ring gear; 360, second driven gear; 370, second upper cover; 371, second clamping plate; 380, second lower cover;

[0031] 400, final storage chamber; 500, buffer chamber; 600, receiving chamber; 700, diversion part. DETAILED DESCRIPTION

[0032] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation methods. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following examples and the features in the examples can be combined with each other unless there is a conflict. It should also be understood that the terms used in the examples of the present invention are for the purpose of describing specific implementation methods, not for the purpose of limiting the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0033] When numerical ranges are given in the examples, it should be understood that, unless otherwise specified herein, both endpoints of each numerical range and any value between the endpoints may be used. Unless otherwise defined, all technical and scientific terms used in this utility model are consistent with the prior art as understood by those skilled in the art and the description of this utility model. Any prior art methods, equipment, and materials similar or equivalent to those described in the examples of this utility model may also be used to implement this utility model.

[0034] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0035] Viruses can spread through aerosols in relatively closed environments (such as indoors). When medical waste bins are opened and closed, the viruses in the bins are likely to be carried out by aerosols. To address this phenomenon, existing garbage disinfection devices are slow to take effect and are not suitable.

[0036] To address the above technical issues, we first analyzed possible factors affecting airflow, including gas turbulence caused by the trash can lid, diffusion caused by differences in virus density inside and outside the trash can, and Brownian motion. After analysis and experimentation, we ruled out Brownian motion. We focused on diffusion caused by density differences and turbulence caused by the trash can lid, ultimately leading to the invention of the medical waste can of the present application.

[0037] See also Figures 1 to 8 The utility model provides a medical waste bin, which includes a bin body 100, a first bin cover 200 and a second bin cover 300. The bin body 100 may be cylindrical or prismatic, preferably cylindrical, for ease of use. The first bin cover 200 is disposed on the top of the bin body 100. The second bin cover 300 is disposed on the bin body 100, and the second bin cover 300 and the bin body 100 form a final storage cavity 400, which is a chamber in the medical waste bin for storing medical waste; preferably, the second bin cover 300 is disposed in the middle and upper part of the bin body 100 to ensure that the final storage cavity 400 has a larger holding space and effectively plays a role in storing waste. A buffer chamber 500 is provided between the first bucket cover 200 and the second bucket cover 300. The first bucket cover 200 and the second bucket cover 300 are not opened at the same time. After the first bucket cover 200 is opened and closed, the second bucket cover 300 is opened. When the garbage falls into the final storage chamber 400, the second bucket cover 300 is closed. When the first bucket cover 200 is opened, the garbage falls into the buffer chamber 500 via the first bucket cover 200, and then the first bucket cover 200 is closed, the second bucket cover 300 is opened, and the garbage falls into the final storage chamber 400 via the second bucket cover 300, and then the second bucket cover 300 is closed. When the first bucket cover 200 of the medical waste bin of the present application is opened, the final storage chamber 400 is not connected to the outside world, and the buffer chamber 500 is connected to the outside world. The virus content in the buffer chamber 500 is much lower than that in the final storage chamber 400, thereby effectively reducing the number of viruses that escape from the medical waste bin to the external environment.

[0038] See also Figures 1 to 4In one embodiment of the present application, the barrel body 100 includes a first barrel body 110 and a second barrel body 120, the second barrel cover 300 is arranged between the first barrel body 110 and the second barrel body 120, and the buffer chamber 500 is arranged in the space enclosed by the first barrel cover 200, the first barrel body 110 and the second barrel cover 300. The first barrel cover 200, the first barrel body 110, the second barrel cover 300, and the second barrel body 120 are connected in sequence to form the main part of the medical waste bin, which is convenient for disassembly, cleaning, disinfection, etc. of the medical waste bin. The second barrel cover 300 and the second barrel body 120 enclose a final storage chamber 400. When dumping garbage or cleaning the final storage chamber 400, it is only necessary to remove the second barrel cover 300 to separate the first barrel cover 200, the first barrel body 110 and the second barrel cover 300 from the second barrel body 120 at the same time, making it convenient to dump the garbage in the final storage chamber 400.

[0039] See also Figure 1 、 Figure 2 and Figure 4 Furthermore, the sidewall of the first barrel cover 200 is provided with a plurality of first clamping plates 271, which extend downward from the first barrel cover 200. The first barrel cover 200 is clamped to the top of the sidewall of the first barrel body 110 and connected to the first barrel body 110 through the first clamping plates 271. The sidewall of the second barrel cover 300 is provided with a plurality of second clamping plates 371, which extend in both the upper and lower directions of the first barrel cover 200. The upper portion of the second clamping plates 371 is clamped to the lower portion of the sidewall of the first barrel body 110, and the lower portion of the second clamping plates 371 is clamped to the upper portion of the sidewall of the second barrel body 120, thereby achieving the connection between the various parts of the medical waste bin body. The various parts of the medical waste bin body are clamped and connected by the first clamping plates 271 and the second clamping plates 371, respectively, which facilitates the disassembly and assembly of the various parts of the medical waste bin and facilitates the disinfection and cleaning of the medical waste bin.

[0040] See also Figure 1 、 Figures 4 to 6 In one embodiment of the present application, the first barrel cover 200 includes a first delivery port 210 and a first covering plate 220. The first covering plate 220 moves in a direction perpendicular to the axial direction of the first delivery port 210 to open and close the first delivery port 210. In other words, the opening and closing of the first barrel cover 200 is a flat opening type. Through a series of schlieren experiments and combined with CFD simulation verification, it is found that the flat opening of the medical waste bin has the smallest aerosol diffusion rate compared with other opening methods of the medical waste bin. By moving the first covering plate 220 in a direction perpendicular to the axial direction of the first delivery port 210, the aerosol in the buffer chamber 500 can be effectively reduced from escaping to the external environment, thereby effectively reducing the number of viruses entering the environment.

[0041] See also Figure 4 、 Figure 7 and Figure 8 Furthermore, the second barrel cover 300 includes a second delivery port 310 and a second covering plate 320. The second covering plate 320 moves in a direction perpendicular to the axial direction of the second delivery port 310 to open and close the second delivery port 310. In other words, the opening and closing of the second barrel cover 300 is a flat opening type, which can effectively reduce the aerosol in the final storage chamber 400 from escaping into the buffer chamber 500, reduce the virus density in the buffer chamber 500, and thus reduce the number of viruses in the buffer chamber 500 entering the external environment.

[0042] See also Figure 1 and Figure 5 In one embodiment, the first covering plates 220 are provided in plurality, such as 3, 4, 5, etc., and the ends of the plurality of first covering plates 220 cooperate to open and close the first delivery port 210. In other words, when the first barrel cover 200 is closed, the ends of the plurality of first covering plates 220 respectively cover part of the first delivery port 210, and the ends of all the first covering plates 220 cooperate to completely cover the first delivery port 210. When the first barrel cover 200 is opened, the first covering plates 220 rotate to expose the first delivery port 210 for garbage delivery.

[0043] In one embodiment, the first barrel cover 200 is provided with a first driving mechanism, which drives the first covering plate 220 to rotate, so as to open and close the first loading port 210. The first driving mechanism is preferably a motor to facilitate driving the first covering plate 220 to rotate.

[0044] See also Figure 5 Furthermore, a first driving gear 230 is provided on the first barrel cover 200, and the first driving mechanism drives the first driving gear 230 to rotate. Preferably, the first driving gear 230 is provided on the output shaft of the first driving mechanism, so that the first driving mechanism drives the first driving gear 230 to rotate.

[0045] See also Figure 4 and Figure 5 In one embodiment, the first barrel cover 200 includes a first upper cover 270 and a first lower cover 280, the first covering plate 220 is arranged in the accommodating space enclosed between the first upper cover 270 and the first lower cover 280, and the first clamping plate 271 is arranged on the side wall of the first upper cover 270.

[0046] See also Figure 5The first barrel cover 200 is provided with a first outer ring gear 240 and a first inner ring gear 250 that meshes with the first driving gear 230. The first inner ring gear 250 rotates around the axis of the first delivery port 210. The first outer ring gear 240 is disposed within the area enclosed by the first inner ring gear 250, and the axis of the first outer ring gear 240 coincides with the axis of the first inner ring gear 250. The first outer ring gear 240 is fixed to the first lower cover 280, and the first covering plate 220 is disposed on top of the first outer ring gear 240. The first inner ring gear 250 and the first lower cover 280 rotate relative to each other. A space is formed between the first inner ring gear 250 and the first outer ring gear 240 to accommodate the rotation of the first driven gear 260 and to accommodate the first covering plate 220 when the first delivery port 210 is opened.

[0047] See also Figure 5 The first inner gear ring 250 has a plurality of first driven gears 260 arranged in a circumferential array on the circumference thereof, meshing with the first inner gear ring 250. The first driven gears 260 mesh with the first outer gear ring 240, and are fixed to the first covering plate 220, so that the first inner gear ring 250 drives the first covering plate 220 to rotate. The first driving mechanism drives the first driving gear 230 to rotate the first inner gear ring 250, thereby driving the first driven gear 260 to rotate along the first outer gear ring 240 and around the axis of the first driven gear 260, thereby rotating the first covering plate 220, thereby completing the sealing or opening of the first delivery port 210. The first driving mechanism can open and close the first barrel cover 200 by rotating forward and reverse, which is convenient and reduces the escape of aerosols into the external environment.

[0048] See also Figure 5 In one embodiment, five first covering plates 220 are provided, and the first covering plates 220 are approximately fan-shaped. The end wall of the first covering plate 220 abuts against the side wall of the adjacent first covering plate 220 on one side, and when the first covering plate 220 rotates, the end wall of the first covering plate 220 moves along the side wall of the adjacent first covering plate 220. The side wall of the first covering plate 220 provides guidance and limitation for the end wall of the adjacent covering plate on one side, ensuring that the movement trajectory of the first covering plate 220 is stable.

[0049] See also Figure 6 In one embodiment, the first delivery port 210 is arranged in the middle of the first outer gear ring 240, which is convenient for throwing garbage and convenient for the first covering plate 220 to cover and open the first delivery port 210.

[0050] See also Figure 4In an exemplary embodiment of the present application, the first barrel cover 200, the second barrel cover 300 and the first barrel body 110 form a receiving chamber 600, and the first driving mechanism is arranged in the receiving chamber 600 outside the buffer chamber 500. The garbage is put into the buffer chamber 500 through the first barrel cover 200, and then put into the final storage chamber 400 through the second barrel cover 300. The first driving mechanism is arranged in the receiving chamber 600 outside the buffer chamber 500, which can effectively protect the first driving mechanism, prevent the first driving mechanism from being contaminated by garbage, and improve the service life of the first driving mechanism.

[0051] See also Figure 7 and Figure 8 In one embodiment, the structure of the second barrel cover 300 is similar to that of the first barrel cover 200. The second barrel cover 300 includes a second upper cover 370 and a second lower cover 380, wherein a second clamping plate 371 is disposed on the sidewall of the second lower cover 380. The second outer ring gear 340 is fixed relative to the second upper cover 370, the second closing plate 320 is disposed at the bottom of the second outer ring gear 340, and the second inner ring gear 350 rotates relative to the second outer ring gear 340. By disposing the second closing plate 320 at the bottom of the second outer ring gear 340, the second driving gear 330 and the second driven gear can both be disposed above the second closing plate 320, thereby facilitating the placement of the second drive mechanism within the receiving chamber 600 located above the second barrel cover 300. The second drive mechanism is located outside the buffer chamber 500, thereby protecting the second drive mechanism and increasing its service life.

[0052] In one embodiment, the projection of the top of the buffer chamber 500 along the axial direction of the first delivery port 210 covers the projection of the first delivery port 210 along the axial direction of the first delivery port 210, thereby ensuring that all garbage thrown into the medical waste bin through the first delivery port 210 will fall into the buffer chamber 500, preventing the garbage from falling into the receiving chamber 600.

[0053] Furthermore, the projection of the second delivery port 310 along the axial direction of the second delivery port 310 covers the projection of the bottom of the buffer cavity 500 along the axial direction of the second delivery port 310, ensuring that all garbage in the buffer cavity 500 can enter the final storage cavity 400 through the second delivery port 310, thereby improving the efficiency of garbage delivery.

[0054] See also Figure 4In one embodiment, the diameter of the buffer chamber 500 gradually decreases from the first delivery port 210 to the second delivery port 310. In other words, the buffer chamber 500 is in the shape of an inverted truncated cone as a whole. The garbage thrown into the buffer chamber 500 falls directly into the bottom of the buffer chamber 500, or slides to the bottom of the buffer chamber 500 through the side wall of the buffer chamber 500, thereby alleviating the situation where the garbage is retained on the side wall of the buffer chamber 500 and improving the efficiency of the garbage falling into the final storage chamber 400.

[0055] See also Figure 4 In one embodiment, a diverter 700 is provided at the bottom of the barrel body 100. The diverter 700 is provided in the middle of the inner bottom surface of the barrel body 100, and the diameter of the diverter 700 increases from top to bottom along the axis of the barrel body 100. Furthermore, the diverter 700 is provided directly below the second inlet 310. After the garbage enters the final storage chamber 400 through the second inlet 310, it is diverted through the diverter 700, thereby preventing the garbage from accumulating directly below the second inlet 310 and improving the utilization efficiency of the final storage chamber 400. Furthermore, the top of the diverter 700 is spherical or arc-shaped. When a garbage bag is placed at the final storage chamber 400, the probability of damage to the garbage platform when the garbage falls on the diverter 700 is reduced, the damage to the garbage bag is reduced, and the collection and processing of the garbage is facilitated.

[0056] In one embodiment, the medical waste bin further includes a switch that controls the opening and closing of the first and second delivery ports 210, 310, such as by controlling the rotation of the first and second drive mechanisms. The switch can be an inductive switch, such as an infrared sensor switch, a push-button switch, or a foot-operated switch. Preferably, the switch is an infrared sensor switch to reduce contact between staff and the medical waste bin, thereby reducing the risk of infection.

[0057] In one embodiment, the side wall of the second barrel body 120 is provided with an opening, and a rotating door is provided on the opening, which is opened and closed by rotating the door to facilitate the dumping of the waste in the medical waste bin. In another embodiment of the present application, the waste in the final storage chamber 400 is dumped out by separating the second barrel cover 300 from the second barrel body 120.

[0058] The present utility model is a medical waste bin, which has the beneficial effect of reducing the number of viruses in the final storage cavity 400 that are transmitted to the external environment via aerosols, thereby reducing the risk of infection for staff. Therefore, the present utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance. The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present utility model should still be covered by the claims of the present utility model.

Claims

1. A medical waste bin, characterized in that: include: barrel; A first barrel cover is provided on the top of the barrel body; A second barrel cover is provided on the barrel body, wherein the second barrel cover and the barrel body form a final storage cavity; Wherein, a buffer cavity is provided between the first barrel cover and the second barrel cover, and the first barrel cover and the second barrel cover are not opened at the same time.

2. The medical waste bin according to claim 1, characterized in that: The barrel body includes a first barrel body and a second barrel body, the second barrel cover is arranged between the first barrel body and the second barrel body, and the buffer chamber is arranged in a space surrounded by the first barrel cover, the first barrel body and the second barrel cover.

3. The medical waste bin according to claim 2, characterized in that: The first barrel cover includes a first delivery port and a first covering plate, and the first covering plate moves in a direction perpendicular to the axial direction of the first delivery port to open and close the first delivery port; the second barrel cover includes a second delivery port and a second covering plate, and the second covering plate moves in a direction perpendicular to the axial direction of the second delivery port to open and close the second delivery port.

4. The medical waste bin according to claim 3, characterized in that: The projection of the top of the buffer cavity along the axial direction of the first delivery port covers the projection of the first delivery port along the axial direction of the first delivery port; the projection of the second delivery port along the axial direction of the second delivery port covers the projection of the bottom of the buffer cavity along the axial direction of the second delivery port.

5. The medical waste bin according to claim 4, characterized in that: The diameter of the buffer cavity gradually decreases from the first delivery port to the second delivery port.

6. The medical waste bin according to claim 3, characterized in that: The first barrel cover is provided with a first driving mechanism, and the first driving mechanism drives the first covering plate to rotate so as to open and close the first loading port.

7. The medical waste bin according to claim 6, characterized in that: The first barrel cover, the second barrel cover and the first barrel body form a receiving cavity, and the first driving mechanism is arranged in the receiving cavity outside the buffer cavity.

8. The medical waste bin according to claim 6, characterized in that: There are multiple first covering plates, and the ends of the multiple first covering plates cooperate to open and close the first loading port; The first barrel cover is provided with a first driving gear, and the first driving mechanism drives the first driving gear to rotate; The first barrel cover is provided with a first outer gear ring and a first inner gear ring meshing with the first driving gear, and the first inner gear ring rotates around the axis of the first loading port; A plurality of first driven gears meshing with the first inner gear are arranged in a circumferential array on the first inner gear ring, and the first driven gears are fixed to the first cover plate so that the first inner gear ring drives the first cover plate to rotate; The first driven gear meshes with the first outer ring gear.

9. The medical waste bin according to claim 8, characterized in that: The first loading port is arranged in the middle of the first outer gear ring; the end wall of the first covering plate is against the side wall of the first covering plate adjacent to one side, and when the first covering plate rotates, the end wall of the first covering plate moves along the side wall adjacent to the first covering plate.

10. The medical waste bin according to claim 1, characterized in that: A diverter is provided at the bottom of the barrel body, and the diverter is provided in the middle of the inner bottom surface of the barrel body. The diameter of the diverter increases from top to bottom along the axis direction of the barrel body.

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