CN216061410U - Layered disinfection cabinet - Google Patents

Abstract

The utility model discloses a layered disinfection cabinet, which comprises a shell (1), a liner (2), a partition plate (3) and a third disinfection device (30), wherein the partition plate (3) divides a disinfection cavity (21) into a first cavity (211) and a second cavity (212), the shell (1) is provided with a steam outlet (12), the liner (2) is provided with an air outlet (22), the partition plate (3) is internally provided with an air return cavity (34), the partition plate (3) is provided with an air inlet (31), a first air outlet (32) and a second air outlet (33) which are respectively communicated with an interlayer (11), the first cavity (211) and the second cavity (212), and the interlayer (11) is internally provided with a first air duct between the air outlet (22) and the air inlet (31) and a second air duct between the air outlet (22) and the steam outlet (12). Compared with the prior art, the layered disinfection cabinet has an internal circulation disinfection function and an exhaust function.

Description

Layered disinfection cabinet

Technical Field

The utility model relates to the technical field of kitchen equipment, in particular to a layered disinfection cabinet.

Background

The existing layered disinfection cabinet generally has an upper layer for ultraviolet disinfection and middle and low temperature disinfection, and a lower layer for high temperature disinfection.

For example, the utility model patent "a double-deck sterilization and disinfection cabinet" with patent application No. CN200820009538.9 (publication No. CN201197816Y) discloses a double-deck sterilization and disinfection cabinet, which comprises a cabinet body, a disinfection inner chamber, a cabinet door, and a control circuit, wherein the disinfection inner chamber is 2, one of the disinfection inner chamber is provided with a sterilization device capable of generating ozone and/or ultraviolet rays, the other disinfection inner chamber is provided with 2 or more than 2 high temperature sterilization devices covering the inner chamber space according to the sterilization action range, and the sterilization device and the high temperature sterilization device are connected with the control circuit.

In the scheme, however, the first mode is that the internal circulation disinfection function and the steam exhaust function are not provided; and secondly, the upper layer and the lower layer are respectively provided with two independent cavities, when the disinfection function of one layer is needed, tableware can be only placed in the corresponding cavity for disinfection, the disinfection space is limited, and the whole disinfection can not be carried out like a non-layered disinfection cabinet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem of providing a layered disinfection cabinet with an internal circulation disinfection function and an exhaust function aiming at the current situation of the prior art.

The utility model aims to solve the second technical problem of providing a layered disinfection cabinet which can evenly disinfect all layers of cavities.

The third technical problem to be solved by the utility model is to provide a layered disinfection cabinet with a set of disinfection devices shared by all layers of chambers.

The fourth technical problem to be solved by the utility model is to provide a layered disinfection cabinet which can give consideration to the functions of a non-layered disinfection cabinet and a layered disinfection cabinet, wherein the respective disinfection devices of two adjacent layers can be used for independently disinfecting respective chambers and synchronously disinfecting the chambers of the two layers.

The fifth technical problem to be solved by the utility model is to provide a layered disinfection cabinet with an odor removal mode or/and an ozone decomposition mode.

The technical scheme adopted by the utility model for solving the first, second and third technical problems is as follows: a layered disinfection cabinet, which comprises

A housing;

the inner container is arranged in the shell and is provided with a disinfection cavity, and an interlayer is formed between the outer wall of the inner container and the inner wall of the shell; and

the partition plate is arranged in the disinfection cavity and divides the disinfection cavity into a first cavity and a second cavity;

the method is characterized in that: the shell is provided with an exhaust port communicated with the interlayer and the outside atmosphere, the inner container is provided with an exhaust port communicated with the first cavity and the interlayer, the partition plate is internally provided with an air return cavity, the partition plate is provided with an air inlet, a first air outlet and a second air outlet, the air inlet is communicated with the interlayer and the air return cavity, the first air outlet is communicated with the air return cavity and the first cavity, and the second air outlet is communicated with the air return cavity and the second cavity;

the interlayer is internally provided with a first air channel between the air outlet and the air inlet and a second air channel between the air outlet and the air outlet, and the layered disinfection cabinet also comprises a third disinfection device which can act on air flow flowing through the first air channel.

The above-mentioned "acting on" specifically means that the third disinfection device can release disinfection factors to the air current flowing through the air duct, and the disinfection factors refer to different substances such as ozone, heat, ultraviolet rays and the like according to the type of the disinfection device.

In order to further solve the fourth technical problem, valves are disposed at the first air outlet, the second air outlet and the second air duct, so that the layered disinfection cabinet has at least four states:

in a first state, the first air outlet is opened, the second air outlet is closed, and the second air duct is blocked;

in a second state, the second air outlet is opened, the first air outlet is closed, and the second air duct is blocked;

in a third state, the first air outlet and the second air outlet are both opened, and the second air duct is blocked;

in the fourth state, the first air outlet and the second air outlet are both closed, and the second air duct is communicated.

Preferably, the first air outlet and the second air outlet share a first valve. The scheme omits the arrangement of a valve, and the structure is simple and compact.

In order to facilitate the matching of the valves and the air outlets, the partition plate is arranged substantially horizontally, the air inlet is positioned at the rear part of the partition plate, the first air outlet is positioned at the top part of the partition plate, the second air outlet is positioned at the bottom part of the partition plate and arranged corresponding to the first air outlet, and the first valve is arranged between the first air outlet and the second air outlet.

In order to realize the opening and closing of the first air outlet and the second air outlet through a first valve, the first valve comprises

The two ends of the valve core are rotatably connected to the inner container through a rotating shaft; and

the power output end of the driving mechanism is rotationally connected with the rotating shaft and used for driving the valve plug to rotate around the axis of the rotating shaft;

in the first state, the valve core only covers the second air outlet;

in the second state, the valve core only covers the first air outlet;

in a third state, the valve core does not cover the first air outlet and the second air outlet;

in the fourth state, the valve core covers the first air outlet and the second air outlet.

In order to facilitate the processing of the valve core, the cross section of the valve core is in a fan shape.

In order to conveniently regulate and control the rotating speed of the rotating shaft, the driving mechanism comprises

The first gear is connected with the rotating shaft and is coaxially arranged;

the second gear is meshed with the first gear; and

and the power output shaft of the driving piece is connected with the second gear and used for driving the second gear to rotate.

In order to guide the airflow entering the air return cavity and avoid airflow disorder, a plurality of guide strips arranged side by side are arranged in an area, located between the air inlet and the first valve, of the air return cavity, and the guide strips extend along the depth direction of the disinfection cavity.

In order to realize the formation of the first air channel and the second air channel, an air supply device is arranged in the interlayer, and the first air channel and the second air channel are formed in the air supply device and can convey airflow from the inlet of the first air channel to the outlet of the first air channel and from the inlet of the second air channel to the outlet of the second air channel.

In order to facilitate the installation of the second valve and avoid influencing the first air channel, the air supply device comprises an air ventilation box body, a first air port, a second air port and a third air port are formed in the air ventilation box body, the first air port is communicated with inlets of the first air channel and the second air channel, the second air port is an outlet of the first air channel, the third air port is an outlet of the second air channel, and the third air port is provided with the second valve.

In order to automatically open or close the third air inlet through the second valve, the second valve comprises

The valve plate can be movably arranged on the outer side of the ventilation box body; and

the elastic piece is arranged between the ventilation box body and the valve plate, so that the valve plate always has the tendency of covering the third air port;

in the first state, the second state and the third state, the valve plate closes the third air port under the elastic force of the elastic piece so as to block the second air channel;

and in a fourth state, the valve plate overcomes the elastic action of the elastic piece to open the third air opening under the action of air flow so as to communicate the second air channel.

In order to ensure that the airflow entering the air return cavity is uniformly diffused, the caliber of at least part of the ventilation box body is gradually increased from the first air opening to the second air opening.

In order to convey the air flow from the inlet of the air channel to the outlet, the air supply device further comprises a centrifugal fan, the centrifugal fan is provided with an air suction port and an air supply port, the air flow can be sucked from the air suction port and discharged through the air supply port, the air suction port of the centrifugal fan is the inlet of the first air channel and the inlet of the second air channel, and the air supply port of the centrifugal fan is communicated with the first air port of the air box body.

In order to avoid the third disinfection device from additionally occupying the space of the first chamber and the second chamber, the third disinfection device is positioned in the air return cavity or the first air duct.

In order to sterilize each chamber in different modes, a first sterilizing device is arranged in the first chamber, and a second sterilizing device is arranged in the second chamber.

In order to further solve the fifth technical problem, the first disinfection device or the third disinfection device comprises an ozone generating device, and the second disinfection device or the third disinfection device comprises a heating element.

Preferably, the ozone generating device is an ultraviolet lamp tube capable of generating short-wave ultraviolet rays and medium-wave ultraviolet rays.

Compared with the prior art, the utility model has the advantages that: offer the air intake through having the division board in return air chamber, first air outlet and second air outlet, offer the air intake on the shell, offer the air exit on the inner bag, because be formed with the first wind channel between air exit and the air intake and the second wind channel between air exit and the steam vent in the intermediate layer, on the one hand, disinfect the air current that flows through this first wind channel through the third degassing unit, realize the inner loop disinfection function, evenly disinfect each layer cavity, on the other hand, the steam vent function can be realized in the setting in second wind channel.

Drawings

FIG. 1 is a schematic perspective view of a layered sterilization cabinet according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the layered sterilization cabinet of FIG. 1 (with the rear side wall of the housing omitted);

FIG. 3 is a longitudinal cross-sectional view of an embodiment of the layered sterilization cabinet of the present invention in a first state;

FIG. 4 is a longitudinal cross-sectional view of an embodiment of the tiered disinfection cabinet of the present invention in a second state;

FIG. 5 is a longitudinal cross-sectional view of an embodiment of the tiered disinfection cabinet of the present invention in a third state;

FIG. 6 is a longitudinal cross-sectional view of the layered sterilization cabinet embodiment of the present invention in a fourth state (with the rear side wall of the housing omitted);

fig. 7 is a schematic perspective view of a layered disinfection cabinet according to an embodiment of the present invention (the right side wall of the housing is omitted).

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Fig. 1 to 7 show a preferred embodiment of the layered disinfection cabinet of the present invention. The layered disinfection cabinet comprises a shell 1, an inner container 2, a partition plate 3, an air supply device 4, a first valve 5 and a second valve 6.

Wherein, the inner container 2 is arranged in the shell 1, a disinfection cavity 21 is formed inside, and an interlayer 11 is formed between the outer wall of the inner container 2 and the inner wall of the shell 1.

The partition plate 3 is disposed substantially horizontally in the middle of the sterilizing chamber 21 and divides the sterilizing chamber 21 into a first chamber 211 located above and a second chamber 212 located below, the first chamber 211 having a first sterilizing device 2111 mounted on a rear side wall thereof, and the second chamber 212 having a second sterilizing device 2121 mounted on a bottom wall thereof.

The rear side wall of the shell 1 is provided with a steam exhaust port 12 communicated with the interlayer 11 and the outside atmosphere, and the upper part of the rear side wall of the inner container 2 is provided with an air exhaust port 22 communicated with the first chamber 211 and the interlayer 11; the inside of division board 3 has return air chamber 34, is equipped with third degassing unit 30 in this return air chamber 34, has seted up the air intake 31 of intercommunication intermediate layer 11 and return air chamber 34 on the rear end wall of division board 3, has seted up the first air outlet 32 of intercommunication return air chamber 34 and first cavity 211 on the roof of division board 3, has seted up the second air outlet 33 of intercommunication return air chamber 34 and second cavity 212 on the diapire of division board 3, and this second air outlet 33 corresponds first air outlet 32 and arranges.

In this embodiment, the first sterilizing device 2111 is an ultraviolet lamp tube capable of simultaneously generating short-band ultraviolet rays having a wavelength of 184.9nm for generating ozone having a strong oxidizing property by combining with oxygen molecules in the air, and middle-band ultraviolet rays having a wavelength of 253.7nm for destroying the DNA of genetic material of a living body; the second disinfection device 2121 is a quartz heating pipe; the third sterilizing device 30 is a PCT heater.

The air supply device 4 is arranged in the interlayer 11, a first air channel and a second air channel are formed inside the air supply device, inlets of the first air channel and the second air channel are communicated with the air outlet 22, an outlet of the first air channel is communicated with the air inlet 31, an outlet of the second air channel is communicated with the steam outlet 12 through the interlayer 11, and the air supply device 4 can convey airflow from the inlet of the first air channel to the outlet of the first air channel and from the inlet of the second air channel to the outlet of the second air channel.

In this embodiment, the air supply device 4 includes a centrifugal fan 41 and a ventilation box 42 connected in sequence, and the internal spaces of the centrifugal fan 41 and the ventilation box 42 form the first air duct and the second air duct together. Specifically, the centrifugal fan 41 has an air suction port and an air supply port, and can suck the air flow from the air suction port and discharge the air flow through the air supply port, and the air suction port of the centrifugal fan 41 is the inlet of the first air duct and the second air duct; the ventilation box body 42 is provided with a first air port 421 located on the top wall, a second air port 422 located on the front side wall and a third air port 423 located on the rear side wall, the first air port 421 is communicated with the air supply port of the centrifugal fan 41, the second air port 422 is the outlet of the first air duct, and the third air port 423 is the outlet of the second air duct, in addition, at least a partial caliber of the ventilation box body 42 is gradually increased from the first air port 421 to the second air port 422, so that the air flow flowing through the ventilation box body 42 is uniformly diffused into the return air cavity 34.

In this embodiment, the first air outlet 32 and the second air outlet 33 share the first valve 5, the first valve 5 is installed between the first air outlet 32 and the second air outlet 33, the third sterilization device 30 is located in the area between the air inlet 31 and the first valve 5, and the air return cavity 34 is provided with a plurality of flow guide strips 35 arranged side by side in the area between the air inlet 31 and the first valve 5, and the flow guide strips 35 extend along the depth direction of the sterilization cavity 21.

Specifically, the first valve 5 includes a spool 51 and a drive mechanism 52. The cross section of the valve core 51 is in a fan shape, and two ends of the valve core 51 can be rotatably connected to the inner container 2 through the rotating shaft 50; as shown in fig. 7, the driving mechanism 52 is located in the interlayer 11 and includes a first gear 521, a second gear 522 and a driving member 523, wherein the first gear 521 is connected to the rotating shaft 50 and coaxially arranged; the second gear 522 is meshed with the first gear 521; the driving member 523 is a motor, and a power output shaft thereof is connected to the second gear 522 for driving the second gear 522 to rotate. The driving member 523 is started to drive the second gear 522 to rotate, and since the first gear 521 is meshed with the second gear 522, the first gear 521 rotates along with the second gear, so that the valve core 51 is driven by the rotating shaft 50 to rotate synchronously around the axis of the rotating shaft 50.

The second valve 6 is installed at the third tuyere 423 and includes a guide post 60, a valve plate 61, and an elastic member 62. Specifically, the guide posts 60 are mounted within the vent box 42; the valve plate 61 is positioned outside the ventilation box body 42 and is in guiding fit with the guide post 60; the elastic element 62 is a tension spring, and is sleeved on the guide post 60, and two ends of the elastic element are respectively connected to the ventilation box body 42 and the valve plate 61, so that the valve plate 61 always has a tendency of covering the third air opening 423.

By the above-mentioned switching of the first valve 5 and the second valve 6, the disinfection cabinet of the present embodiment has at least four states:

in the first state, as shown in fig. 3, the valve core 51 only covers the second air outlet 33, so that the first air outlet 32 is opened, the second air outlet 33 is closed, and at this time, the valve plate 61 closes the third air inlet 423 under the elastic force of the elastic member 62, so as to block the second air duct;

in the second state, as shown in fig. 4, the valve core 51 only covers the first air outlet 32, so that the second air outlet 33 is opened, the first air outlet 32 is closed, and at this time, the valve plate 61 closes the third air inlet 423 under the elastic force of the elastic member 62, so as to block the second air duct;

in a third state, as shown in fig. 5, the valve core 51 does not cover the first air outlet 32 and the second air outlet 33, so that both the first air outlet 32 and the second air outlet 33 are opened, and at this time, the valve plate 61 closes the third air inlet 423 under the elastic force of the elastic member 62, so as to block the second air duct;

in the fourth state, as shown in fig. 6, the valve core 51 covers the openings of the return air cavity 34 behind the first air outlet 32 and the second air outlet 33, which is equivalent to simultaneously cover the first air outlet 32 and the second air outlet 33, so that both the first air outlet 32 and the second air outlet 33 are closed, and at this time, the valve plate 61 overcomes the elastic force of the elastic member 62 to open the third air opening 423 under the action of the air flow, so that the second air duct is communicated.

The working principle of the embodiment is as follows:

(1) when the first chamber 211 needs to be sterilized separately, the first valve 5 is rotated to the first state shown in fig. 3, so that the first air outlet 32 is opened, the second air outlet 33 is closed, and at this time, the valve plate 61 closes the third air inlet 423 under the elastic force of the elastic member 62, so that the second air duct is blocked;

ozone disinfection or/and drying disinfection mode: starting the first disinfecting device 2111 or/and the third disinfecting device 30 and the air supply device 4, the airflow of the first chamber 211 sequentially enters the centrifugal fan 41 and the ventilation box body 42 from the air outlet 22, then enters the air return cavity 34 through the air inlet 31, and finally returns to the first chamber 211 through the first air outlet 32, so that ozone or/and heat are rapidly diffused to each corner of the first chamber 211, sufficient internal circulation in the first chamber 211 is realized, and the tableware disinfecting effect is good;

ozone decomposition mode: after the ozone sterilization mode is finished, the first sterilization device 2111 is closed, the third sterilization device 30 is started, the air supply device 4 quickly diffuses heat to each corner of the first chamber 211, so that sufficient internal circulation in the first chamber 211 is realized, residual ozone in the first chamber 211 is decomposed, and meanwhile, the first chamber 211 can be dried;

(2) when the second chamber 212 needs to be sterilized separately, the first valve 5 is rotated to the second state shown in fig. 4, so that the second air outlet 33 is opened, the first air outlet 32 is closed, and at this time, the valve plate 61 closes the third air inlet 423 under the elastic force of the elastic member 62, so that the second air duct is blocked;

removing the peculiar smell mode: the first sterilizing device 2111 and the air supply device 4 are started, the airflow of the first chamber 211 sequentially enters the centrifugal fan 41 and the ventilation box body 42 from the air outlet 22, then enters the air return chamber 34 through the air inlet 31, finally enters the second chamber 212 through the second air outlet 33, and blows air to the second chamber 212, so that airflow disturbance is caused, ozone is conveyed and rapidly diffused to each corner of the second chamber 212, the effects of removing peculiar smell and purifying air can be achieved, and meanwhile, the cleaning effect of tableware in the second chamber 212 can be improved;

drying and disinfecting modes: starting the third sterilizing device 30 or/and the second sterilizing device 2121 and the air supply device 4, the air supply device 4 causes air flow disturbance by blowing air into the second chamber 212, and heat is transferred or/and rapidly diffused to each corner of the second chamber 212, so as to provide drying uniformity;

(3) when the first chamber 211 and the second chamber 212 need to be sterilized together, the first valve 5 is rotated to the third state shown in fig. 5, so that the first air outlet 32 and the second air outlet 33 are both opened, and at this time, the valve plate 61 closes the third air inlet 423 under the elastic force of the elastic member 62, so as to block the second air duct;

ozone disinfection or/and drying disinfection mode: starting the first disinfecting device 2111 or/and the second disinfecting device 2121 or/and the third disinfecting device 30 and the air supply device 4, enabling air flows of the first chamber 211 and the second chamber 212 to sequentially enter the centrifugal fan 41 and the ventilation box 42 from the air outlet 22, then enter the air return cavity 34 through the air inlet 31, finally enter the first chamber 211 and the second chamber 212 through the first air outlet 32 and the second air outlet 33 respectively, and rapidly diffuse ozone or/and heat to each corner of the first chamber 211 and the second chamber 212, so that sufficient internal circulation in the first chamber 211 and the second chamber 212 is realized, the tableware disinfecting effect is good, all spaces of the disinfecting cavity 21 are utilized for disinfection, and the function of a non-layered disinfection cabinet is considered;

ozone decomposition mode: after the ozone sterilization mode is finished, the first sterilization device 2111 is closed, the second sterilization device 2121 or/and the third sterilization device 30 are/is started, the air supply device 4 quickly diffuses heat to each corner of the first chamber 211 and the second chamber 212, so that sufficient internal circulation in the first chamber 211 and the second chamber 212 is realized, residual ozone in the first chamber 211 and the second chamber 212 is decomposed, and meanwhile, the first chamber 211 and the second chamber 212 can be dried;

(4) when steam needs to be exhausted, the first valve 5 is rotated to the fourth state as shown in fig. 6, so that the first air outlet 32 and the second air outlet 33 are both closed, and at this time, the valve plate 61 overcomes the elastic force of the elastic member 62 to open the third air inlet 423 under the action of air flow, so that the second air duct is communicated;

and (3) steam exhaust mode: the water vapor in the first chamber 211 sequentially enters the centrifugal fan 41 and the ventilation box 42 from the air outlet 22, then enters the interlayer 11 through the third air opening 423, and finally enters the external atmosphere through the air outlet 12, thereby completing the air exhaust.

Claims (17)

1. A layered disinfection cabinet, which comprises

A housing (1);

the inner container (2) is arranged in the shell (1) and is provided with a disinfection cavity (21), and an interlayer (11) is formed between the outer wall of the inner container (2) and the inner wall of the shell (1); and

a partition plate (3) which is arranged in the disinfection chamber (21) and divides the disinfection chamber (21) into a first chamber (211) and a second chamber (212);

the method is characterized in that: the air conditioner is characterized in that the shell (1) is provided with a steam exhaust port (12) communicated with the interlayer (11) and the outside atmosphere, the inner container (2) is provided with an air exhaust port (22) communicated with the first cavity (211) and the interlayer (11), the partition plate (3) is internally provided with an air return cavity (34), the partition plate (3) is provided with an air inlet (31), a first air outlet (32) and a second air outlet (33), the air inlet (31) is communicated with the interlayer (11) and the air return cavity (34), the first air outlet (32) is communicated with the air return cavity (34) and the first cavity (211), and the second air outlet (33) is communicated with the air return cavity (34) and the second cavity (212);

interlayer (11) in be formed with first wind channel between air exit (22) and air intake (31) and second wind channel between air exit (22) and steam exhaust (12), the layering sterilizer still including third degassing unit (30) that can act on the first wind channel air current of flowing through.

2. The tiered disinfection cabinet of claim 1 wherein: valves are arranged at the first air outlet (32), the second air outlet (33) and the second air channel, so that the layered disinfection cabinet has at least four states:

in a first state, the first air outlet (32) is opened, the second air outlet (33) is closed, and the second air duct is blocked;

in a second state, the second air outlet (33) is opened, the first air outlet (32) is closed, and the second air duct is blocked;

in a third state, the first air outlet (32) and the second air outlet (33) are both opened, and the second air duct is blocked;

in the fourth state, the first air outlet (32) and the second air outlet (33) are both closed, and the second air duct is communicated.

3. The tiered disinfection cabinet of claim 2 wherein: the first air outlet (32) and the second air outlet (33) share the first valve (5).

4. The tiered disinfection cabinet of claim 3 wherein: the partition plate (3) is basically horizontally arranged, the air inlet (31) is positioned at the rear part of the partition plate (3), the first air outlet (32) is positioned at the top part of the partition plate (3), the second air outlet (33) is positioned at the bottom part of the partition plate (3) and is arranged corresponding to the first air outlet (32), and the first valve (5) is arranged between the first air outlet (32) and the second air outlet (33).

5. The tiered disinfection cabinet of claim 4 wherein: the first valve (5) comprises a valve core (51), and two ends of the valve core can be rotatably connected to the inner container (2) through a rotating shaft (50); and

the power output end of the driving mechanism (52) is rotationally connected with the rotating shaft (50) and is used for driving the valve plug (51) to rotate around the axis of the rotating shaft (50);

in the first state, the valve core (51) only covers the second air outlet (33);

in the second state, the valve core (51) only covers the first air outlet (32);

in a third state, the valve core (51) does not cover the first air outlet (32) and the second air outlet (33);

in the fourth state, the valve core (51) covers the first air outlet (32) and the second air outlet (33).

6. The tiered disinfection cabinet of claim 5 wherein: the cross section of the valve core (51) is in a fan shape.

7. The tiered disinfection cabinet of claim 5 wherein: the driving mechanism (52) comprises

A first gear (521) connected to the rotating shaft (50) and coaxially disposed;

a second gear (522) engaged with the first gear (521); and

and a driving member (523) with a power output shaft connected with the second gear (522) for driving the second gear (522) to rotate.

8. The tiered disinfection cabinet of claim 4 wherein: the area of the air return cavity (34) between the air inlet (31) and the first valve (5) is internally provided with a plurality of guide strips (35) which are arranged side by side, and the guide strips (35) extend along the depth direction of the disinfection cavity (21).

9. The tiered disinfection cabinet of claim 2 wherein: the interlayer (11) is internally provided with an air supply device (4), the air supply device (4) is internally provided with a first air channel and a second air channel, and can convey airflow from the inlet of the first air channel to the outlet of the first air channel and from the inlet of the second air channel to the outlet of the second air channel.

10. The tiered disinfection cabinet of claim 9 wherein: air supply arrangement (4) including ventilation box (42), seted up first wind gap (421), second wind gap (422) and third wind gap (423) on this ventilation box (42), first wind gap (421) communicate the entry in first wind channel and second wind channel, second wind gap (422) be the export in first wind channel, third wind gap (423) be the export in second wind channel, and third wind gap (423) department installs second valve (6).

11. The tiered disinfection cabinet of claim 10 wherein: the second valve (6) comprises a valve plate (61) which can be movably arranged on the outer side of the ventilation box body (42); and

the elastic piece (62) is arranged between the ventilation box body (42) and the valve plate (61) so that the valve plate (61) always has the tendency of covering the third air port (423);

in the first state, the second state and the third state, the valve plate (61) closes the third air port (423) under the elastic force of the elastic piece (62) so as to block the second air channel;

in the fourth state, the valve plate (61) overcomes the elastic force of the elastic piece (62) to open the third air opening (423) under the action of air flow, so that the second air channel is communicated.

12. The tiered disinfection cabinet of claim 10 wherein: at least partial caliber of the ventilation box body (42) is gradually increased from the first tuyere (421) to the second tuyere (422).

13. The tiered disinfection cabinet of claim 10 wherein: air supply arrangement (4) still including centrifugal fan (41), this centrifugal fan (41) have inlet scoop and supply-air outlet, can inhale the air current from the inlet scoop and discharge through the supply-air outlet, the inlet scoop of centrifugal fan (41) is the entry in first wind channel and second wind channel, the supply-air outlet intercommunication of centrifugal fan (41) first wind gap (421) of ventilation box (42).

14. The tiered disinfection cabinet of any one of claims 2 to 13 wherein: the third disinfection device (30) is positioned in the air return cavity (34) or the first air duct.

15. The tiered disinfection cabinet of claim 14 wherein: the first chamber (211) is provided with a first disinfection device (2111), and the second chamber (212) is provided with a second disinfection device (2121).

16. The tiered disinfection cabinet of claim 15 wherein: the first disinfection device (2111) or the third disinfection device (30) comprises an ozone generating device, and the second disinfection device (2121) or the third disinfection device (30) comprises a heating element.

17. The tiered disinfection cabinet of claim 16 wherein: the ozone generating device is an ultraviolet lamp tube which can generate short-wave-band ultraviolet rays and middle-wave-band ultraviolet rays.

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