CN112494679B

CN112494679B - Disinfection cabinet

Info

Publication number: CN112494679B
Application number: CN202011325422.8A
Authority: CN
Inventors: 张文龙
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-10-12
Anticipated expiration: 2040-11-24
Also published as: CN112494679A

Abstract

The invention discloses a disinfection cabinet, which comprises a cabinet body (1) with a disinfection cavity (11), a storage rack (22) positioned in the disinfection cavity (11) and a tableware box (4) arranged in the storage rack (22), and is characterized in that: the cutlery box (4) comprises two support bars (411) arranged side by side, at least two rotating sheets (42) arranged between the two support bars (411) along the length direction of the support bars (411) and an adjusting assembly (43) capable of driving each rotating sheet (42) to deflect, and when the rotating sheets (42) are basically in a horizontal state, each rotating sheet (42) integrally forms a platform for placing the cutlery; when the rotating pieces (42) deviate from the horizontal state, a flow guide channel for guiding the airflow is formed between the adjacent rotating pieces (42). Compared with the prior art, the disinfection cabinet provided by the invention can guide the airflow blowing to the storage rack without influencing the original function.

Description

Disinfection cabinet

Technical Field

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

Background

At present, a plurality of disinfection cabinets are provided with special tableware boxes separately in the cabinets or on pull baskets for placing small tableware such as chopsticks, small dishes, spoons and the like.

For example, the pull-out basket and the disinfection cabinet of the disinfection cabinet disclosed in the invention patent of the disinfection cabinet pull-out basket and the disinfection cabinet with the patent application number of CN201810213164.0 (publication number of CN108144089A), the pull-out basket of the disinfection cabinet comprises a pull-out basket body, the pull-out basket body is provided with a plurality of tableware placing areas, each tableware placing area is used for placing different types of tableware, a tableware box is arranged in each tableware placing area, each tableware box is provided with a first containing groove and a second containing groove which are opened upwards, a spoon shelf for placing a spoon is arranged in the first containing groove, and a chopstick box is arranged in the second containing groove.

The cutlery boxes described above, however, generally do not have the function of directing the airflow.

In addition, tableware drying is a necessary function of the disinfection cabinet product, and at present, the drying of the disinfection cabinet usually adopts an electric heating tube, a quartz tube and PTC as a heating device. In order to ensure the drying effect, the heating device is usually arranged below or on the bottom surface of the disinfection cabinet, the temperature near the heating device is more than 150 ℃, and the tableware which cannot resist high temperature falls near the heating device, so that the risk of scorching and melting can be caused.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a disinfection cabinet which can guide the airflow blowing to the article placing rack without influencing the original function aiming at the current situation of the prior art.

The second technical problem to be solved by the invention is to provide a disinfection cabinet which can avoid the melting of the non-high temperature resistant tableware during drying.

The third technical problem to be solved by the invention is to provide a disinfection cabinet capable of realizing air flow internal circulation.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a disinfection cabinet, which comprises

A cabinet body having a sterilization chamber;

the storage rack is positioned in the disinfection cavity; and

the tableware box is arranged in the storage rack;

the method is characterized in that: the tableware box comprises

The fixing frame comprises two supporting strips which are arranged side by side;

the rotating pieces are arranged along the length direction of the supporting bars, and two ends of each rotating piece are respectively and rotatably connected to the two supporting bars; and

the adjusting assembly can drive each rotating piece to deflect relative to the supporting strip and has at least two states:

in the first state, the rotating pieces are basically in a horizontal state, the adjacent edges of two adjacent rotating pieces are close to each other, and each rotating piece integrally forms a platform for placing tableware;

and in the second state, the rotating sheets deviate from the horizontal state, and a flow guide channel for guiding the airflow is formed between the adjacent rotating sheets.

In order to further solve the second technical problem, a heating element is mounted on the bottom wall of the cabinet, the rack is provided with the cutlery box at a position right above the heating element, and the rotating piece of the cutlery box in the first state is higher than the bottom surface of the rack, so that a sufficient gap is formed between the rotating piece in the first state and the heating element.

In order to facilitate the placing of the tableware, the tableware box also comprises a drawer which can be drawn in and out of the disinfection cavity, the drawer comprises a door body and the storage rack arranged on the back of the door body, and the tableware box is positioned right above the heating element when the drawer is closed.

In order to further solve the third technical problem, the cabinet comprises

A housing; and

the inner container is arranged in the shell, the disinfection cavity is arranged in the inner container, the inner container is provided with an air outlet and an air return inlet which are communicated with the disinfection cavity, and an interlayer is formed between the outer wall of the inner container and the inner wall of the shell;

the interlayer is internally provided with a circulating ventilation device, an air duct is formed in the circulating ventilation device, an inlet of the air duct is communicated with the air outlet, an outlet of the air duct is communicated with the air return inlet, and the circulating ventilation device can convey airflow from the inlet of the air duct to the outlet of the air duct.

In order to ensure that the air flow discharged by the air return opening is uniformly dispersed, a first flow channel is arranged inside the supporting strip, and the inlet of the first flow channel is communicated with the air return opening when the drawer is in a closed state;

the rotating sheet is internally provided with a second circulation channel, the inlet of the second circulation channel is communicated with the outlet of the first circulation channel, and the outlet of the second circulation channel is communicated with the disinfection cavity.

In order to ensure that the tableware in the tableware box is dried quickly in the first state, the heat is prevented from being accumulated near the heating element to cause the temperature of the heating element to be overhigh in the second state, and the outlet of the second circulation channel faces the tableware placed in the tableware box in the first state; in the second state, the outlet of the second flow-through channel faces the heating member.

In order to facilitate the formation of the first circulation channel and the second circulation channel, the support bar is hollow, an air inlet pipe communicated with the inner cavity of the support bar is convexly arranged on the end wall of the support bar, the port of the air inlet pipe is an inlet of the first circulation channel, the support bar is provided with at least two shaft holes which are arranged at intervals along the length direction of the support bar, and the shaft holes are outlets of the first circulation channel;

the inside of rotor plate is cavity, and the tip of rotor plate has and is hollow pivot, and this pivot can insert with rotating and establish the shaft hole, the port of this pivot is the entry of second circulation passageway, seted up the air outlet on the lateral wall of rotor plate one side, this air outlet is the export of second circulation passageway.

In order for the circulating ventilation device to convey the airflow from the inlet of the air duct to the outlet of the air duct, the circulating ventilation device comprises

The centrifugal fan is provided with an air suction port and an air exhaust port, can suck air flow from the air suction port and exhaust the air flow through the air exhaust port, and the air suction port of the centrifugal fan is an inlet of the air channel; and

and the inlet of the communicating pipeline is communicated with the exhaust port of the centrifugal fan, and the outlet of the communicating pipeline is the outlet of the air channel.

In order to improve the drying efficiency and fully utilize the space in the cabinet, the heating element is in a long strip shape and is arranged at the rear part of the bottom wall in the cabinet body along the width direction of the cabinet body, and correspondingly, the tableware box is arranged at the rear part of the storage rack along the width direction of the cabinet body.

In order to ensure that the hot air flow obliquely upwards splashes to the tableware placed in the storage rack through the flow guide channel, the rotating pieces are gradually and forwards inclined from bottom to top in the second state.

In order to ensure that the tableware box can contain enough tableware, the fixing frame further comprises a side plate which is vertically arranged at the front end of the supporting strip, and in the first state, the rotating pieces, the side plate and the local inner side wall of the storage rack are surrounded to form a storage cavity for containing tableware.

In order to facilitate the suspended arrangement of the side plates, the fixing frame further comprises a supporting plate supported below the side plates, the supporting plate is placed on the bottom surface inside the storage rack, and the supporting plate is provided with a circulation hole for fluid to pass through.

In order to realize synchronous turnover of the rotating pieces, the adjusting component comprises

The first gears correspond to the rotating pieces one by one and are in transmission connection with the corresponding rotating pieces; and

and the rack is meshed with the first gears.

In order to realize the automatic sliding of the rack, the adjusting component also comprises

The second gear is meshed with the rack; 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.

Compared with the prior art, the invention has the advantages that: arranging at least two rotating sheets between the two supporting bars along the length direction of the supporting bars, driving each rotating sheet to deflect relative to the supporting bars through an adjusting assembly, and when the rotating sheets are basically in a horizontal state, adjacent edges of two adjacent rotating sheets are close to each other, and each rotating sheet integrally forms a platform for placing tableware; when the rotating pieces deviate from the horizontal state, a flow guide channel is formed between every two adjacent rotating pieces, and air flow blowing to the storage rack can be guided.

Drawings

FIG. 1 is a schematic perspective view of a disinfection cabinet according to an embodiment of the present invention (the rear side wall of the housing is omitted);

FIG. 2 is a longitudinal cross-sectional view of an embodiment of the sterilizer of the present invention;

FIG. 3 is a perspective view of the drawer and cutlery box of the embodiment of the present invention in a first position;

FIG. 4 is a longitudinal cross-sectional view of FIG. 3;

FIG. 5 is a perspective view of the drawer and cutlery box of the embodiment of the present invention in a second position;

FIG. 6 is a longitudinal cross-sectional view of FIG. 5;

FIG. 7 is a perspective view of the cutlery box of FIG. 5;

fig. 8 is an exploded perspective view of fig. 7 with side plates and support plates omitted.

Detailed Description

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

As shown in fig. 1 to 8, a preferred embodiment of the disinfection cabinet of the present invention is shown. The disinfection cabinet comprises a cabinet body 1, a drawer 2, a heating element 3, a tableware box 4, a circulating ventilation device 5 and a disinfection lamp tube 6.

As shown in fig. 1 and 2, the cabinet 1 includes a housing 11 and an inner container 12 disposed in the housing 11. Specifically, the inner container 12 has a sterilization chamber 121 therein, an air outlet 122 and an air return 123 which are communicated with the sterilization chamber 121 are respectively formed at the upper part and the lower part of the rear side wall of the inner container 12, and an interlayer 111 is formed between the outer wall of the inner container 12 and the inner wall of the outer shell 11.

The number of the drawers 2 is two, and the drawers are respectively arranged in the disinfection cavity 121 one above the other and can be pulled in and out of the disinfection cavity 121. Each drawer 2 includes a door 21 and a rack 22 mounted on the back of the door 21. In this embodiment, the rack 22 of the drawer 2 located below includes a support frame 221 and a pull-out basket 222, the support frame 221 is U-shaped, and two ends of the support frame are connected to the back of the door 21; the pull basket 222 is a flat net pull basket, and is disposed at the bottom end of the support frame 221.

The heating element 3 is in a long strip shape and is arranged at the rear part of the bottom wall in the inner container 12 along the width direction of the inner container 12, a pipe cover 31 is covered on the periphery of the heating element 3, and a plurality of through holes 311 are formed in the pipe cover 31. In this embodiment, the heating member 3 is a quartz heating tube.

The dish box 4 is disposed above the rear portion of the drawer basket 222 in the width direction of the sterilizing compartment 121, and the dish box 4 is positioned directly above the heating member 3 in a state where the drawer 2 positioned below is closed.

In this embodiment, the cutlery box 4 comprises a fixed frame 41, a rotating piece 42 and an adjusting assembly 43.

Specifically, the fixing frame 41 includes two supporting bars 411 arranged side by side, a side plate 412 erected at a front end of the supporting bars 411, and a supporting plate 413 supported below the side plate 412. The support bars 411 extend along the front-back direction, and the two support bars 411 are tightly attached to the two opposite inner side walls of the support frame 221; the side plates 412 extend in the left-right direction, and the left and right side edges are closely attached to the two opposite inner side walls of the support frame 221; the supporting plate 413 and the side plate 412 are an integral piece, and are placed on the bottom surface inside the rack 22, the left and right side edges are tightly attached to the two opposite inner side walls of the supporting frame 221, and the supporting plate 413 is provided with a through hole 4131 for the fluid to pass through. In addition, the inside of the supporting bar 411 is hollow, and the side wall of the supporting bar 411 is provided with at least two shaft holes 4113 arranged at intervals along the length direction of the supporting bar 411; for the supporting bar 411 on the right side, an air inlet pipe 4112 (in this embodiment, as shown in fig. 2, the air inlet pipe 4112 is an extension section of the rear end of the supporting bar 411) communicating with the inner cavity of the supporting bar 411 is convexly arranged on the end wall of the supporting bar 411, a first circulation passage 4111 is formed by the internal spaces of the supporting bar 411 and the air inlet pipe 4112 together, a port of the air inlet pipe 4112 is an inlet of the first circulation passage 4111, and an axial hole 4113 of the supporting bar 411 is an outlet of the first circulation passage 4111; when the drawer 2 is in a closed state, a port of the air inlet duct 4112 is inserted into the air return opening 123, thereby achieving communication with the air return opening 123.

The number of the rotating pieces 42 is at least two, and the rotating pieces are sequentially arranged along the length direction of the supporting bars 411, and both ends of each rotating piece 42 are provided with rotating shafts 422, and the rotating shafts 422 can be rotatably inserted in the shaft holes 4113 of the two supporting bars 411, so that the rotating connection with the two supporting bars 411 is realized. The rotary piece 42 and the rotating shaft 421 at the right end thereof are hollow, the inner spaces together form a second flow path 421, an inlet of the second flow path 421 communicates with an outlet of the first flow path 4111, a port of the rotating shaft 422 is an inlet of the second flow path 421, an air outlet 423 is formed in a side wall of the rotary piece 42, and the air outlet 423 is an outlet of the second flow path 421.

The adjustment assembly 43 includes a first gear 431, a rack 432, a second gear 433, and a drive member 434. As shown in fig. 7 and 8, the first gear 431 is accommodated inside the supporting bar 411 on the left side, corresponding to the rotating pieces 42 one to one, and connected to the rotating shaft 422 corresponding to the left end of the rotating piece 42; the rack 432 is slidably inserted into the support bar 411 on the left side, the front end of the rack is inserted into the front end surface of the support bar 411, the rear end of the rack penetrates through the inner container 12 and extends into the interlayer 111, and the rack 432 is meshed with each first gear 431; the second gear 433 is engaged with the rack 432; the driving member 434 is a motor, and is mounted on the rear side wall of the supporting frame 221, and a power output shaft thereof is connected to the second gear 433 for driving the second gear 433 to rotate. The driving member 434 is started to drive the second gear 433 to rotate, so as to drive the rack 432 to move, thereby driving each first gear 431 to rotate, and finally driving each rotating piece 42 to synchronously deflect relative to the supporting bar 411 through the rotating shaft 422, and the rotating piece has at least two states:

in a first state, as shown in fig. 3 and 4, the rotating pieces 42 are in a substantially horizontal state, adjacent edges of two adjacent rotating pieces 42 are close to each other, each rotating piece 42 forms a platform for placing tableware on the whole, and each rotating piece 42, the side plate 412 and a local inner side wall of the supporting frame 221 surround to form a containing cavity 40 for containing tableware; wherein, each rotating sheet 42 forms the bottom wall of the storage chamber 40, and the bottom wall is higher than the bottom surface of the pull basket 222, so that a sufficiently large gap (the height of the gap is preferably 20-50 mm) is formed between the bottom wall and the heating member 3; in this embodiment, in this state, the side of the rotating piece 42 where the air outlet 423 is opened faces upward, so that the air outlet 423 faces the tableware placed in the tableware box 4;

in the second state, as shown in fig. 5 and 6, the rotating pieces 42 deviate from the horizontal state, and a flow guide channel for guiding the air flow is formed between the adjacent rotating pieces 42; in this embodiment, in this state, the side of the rotating sheet 42 where the air outlet 423 is opened faces downward, so that the air outlet 423 faces the heating member 3; the rotating pieces 42 are arranged to be inclined forward gradually from bottom to top so that the air discharged from the guide passage is blown toward the dishes placed in the storage rack 22.

The circulating ventilation device 5 is arranged in the interlayer 11, an air duct 51 is formed inside, the inlet of the air duct 51 is communicated with the air outlet 122, the outlet of the air duct 51 is communicated with the air return opening 123, and the circulating ventilation device 5 can convey airflow from the inlet of the air duct 51 to the outlet of the air duct 51. In the present embodiment, as shown in fig. 1 and fig. 2, the circulating ventilation device 5 includes a centrifugal fan 52 and a communication duct 53 connected in sequence, and the internal spaces of the centrifugal fan 52 and the communication duct 53 together form the air duct 51. Specifically, the centrifugal fan 52 has an air inlet and an air outlet, and can suck the air flow from the air inlet and discharge the air flow through the air outlet, wherein the air inlet of the centrifugal fan 52 is the inlet of the air duct 51; the inlet of the communication pipe 53 is communicated with the exhaust port of the centrifugal fan 52, and the outlet of the communication pipe 53 is the outlet of the air duct 51.

The sterilizing lamp tube 6 is arranged on the rear side wall inside the inner container 12 and can generate sterilizing light to act on the sterilizing cavity 121. In this embodiment, the disinfection lamp 6 is an ultraviolet lamp, which can simultaneously generate short-band ultraviolet rays and medium-band ultraviolet rays. Specifically, the short-band ultraviolet ray is an ultraviolet ray with a wavelength of 184.9nm and is used for combining with oxygen molecules in the air to generate ozone with strong oxidizing property; the middle-band ultraviolet ray is ultraviolet ray with wavelength of 253.7nm, and is used for destroying genetic material DNA of organism.

In addition, each part of the tableware box 4 is a sheet metal part and is made of heat conducting materials (such as stainless steel, aluminum alloy, copper and the like), so that heat dissipation is accelerated, and the probability that the tableware which is not high in temperature resistance is melted on the sheet metal part is reduced.

The working principle of the invention is as follows:

(1) when dishes need to be placed in the cutlery box 4, as shown in fig. 2 to 4, in the first state, the rotating pieces 42 are in a substantially horizontal state, adjacent edges of two adjacent rotating pieces 42 are close to each other, and the rotating pieces 42, the side plates 412 and partial inner side walls of the supporting frame 221 surround to form a placing cavity 40 for placing the dishes;

during disinfection: the sterilizing lamp tube 6 is started to generate ozone, the centrifugal fan 52 sucks the airflow at the upper part of the sterilizing cavity 121, the airflow sequentially enters the first circulation channel 4111 and the second circulation channel 421 after passing through the communication pipeline 53 and then blows the airflow to the tableware placed in the storage rack 22 through the air outlet 423, so that the tableware is fully contacted with the ozone, the sterilizing effect is improved, meanwhile, the ozone can be rapidly diffused to all corners of the sterilizing cavity 121, the full internal circulation in the sterilizing cavity 121 is realized, the uniform ozone concentration of all corners is finally ensured, and the sterilizing effect of the tableware is better;

and (3) during drying: firstly, as the tableware box 4 is positioned right above the heating element 3 and each rotating sheet 42 is higher than the bottom surface of the pull-out basket 222, a large enough gap is formed between the bottom wall of the storage cavity 40 and the heating element 3, the heating element 3 can be prevented from being close to the tableware placed in the storage rack 22 and the tableware box 4, and thus the melting deformation of the tableware which can not resist high temperature is avoided; secondly, the heating element 3 is heated to cause the difference of gas density, hot air flow penetrates through the pull basket 222 and then blows forwards to tableware placed in the storage rack 22 through the circulation hole 4131, then rises to the upper part of the inner container 12, and is similar to a chimney effect, the centrifugal fan 52 sucks air flow at the upper part of the disinfection cavity 121, the air flow sequentially enters the first circulation channel 4111 and the second circulation channel 421 after passing through the communicating pipeline 53, and then is blown to the tableware placed in the tableware box 4 through the air outlet 423 to rapidly dry the tableware, meanwhile, heat can be rapidly diffused to each corner of the disinfection cavity 121, sufficient internal circulation in the disinfection cavity 121 is realized, the temperature field at each corner is ensured to be uniform, and the tableware drying effect is good; thirdly, when the residual ozone passes through the second circulation channel 421 in the internal circulation process, the decomposition process of the ozone can be accelerated by using the high temperature nearby;

(2) when no dishes are required to be placed in the cutlery box 4, as shown in fig. 5 and 6, in the second state, the rotating pieces 42 are deviated from the horizontal state, and a guide passage for guiding the airflow is formed between the adjacent rotating pieces 42;

during disinfection: the sterilizing lamp tube 6 is started to generate ozone, the centrifugal fan 52 sucks the airflow at the upper part of the sterilizing cavity 121, the airflow sequentially enters the first circulation channel 4111 and the second circulation channel 421 after passing through the communication pipeline 53 and then returns to the sterilizing cavity 121 through the air outlet 423, the ozone can be rapidly diffused to each corner of the sterilizing cavity 121, sufficient internal circulation in the sterilizing cavity 121 is realized, the uniform ozone concentration at each corner is finally ensured, and the tableware sterilizing effect is good;

and (3) during drying: firstly, the difference of gas density is caused by the heating of the heating element 3, the hot air flow can be divided into two parts after passing through the pull basket 222, one part of the hot air flow obliquely upwards shoots the tableware placed in the storage rack 22 through the diversion channel, the other part of the hot air flow hole 4131 shoots the tableware placed in the storage rack 22 forwards, the drying of the tableware is convenient, then rising to the upper part of the inner container 12, similar to the chimney effect, the centrifugal fan 52 sucks the airflow at the upper part of the disinfection cavity 121, the airflow passes through the communicating pipeline 53 and then sequentially enters the first communicating channel 4111 and the second communicating channel 421, and then blown toward the heating member 3 through the air outlet 423 to prevent heat from being accumulated near the heating member 3 to cause the temperature thereof to be excessively high, meanwhile, heat can be diffused to all corners of the disinfection cavity 121 quickly, sufficient internal circulation in the disinfection cavity 121 is achieved, the temperature field at each corner is ensured to be uniform, and the tableware drying effect is good; and thirdly, when the residual ozone is blown to the heating element 3 in the internal circulation process, the decomposition process of the ozone can be accelerated by utilizing the high temperature nearby.

Claims

1. A disinfection cabinet, which comprises

A cabinet body (1) having a disinfection chamber (121);

a rack (22) located in the disinfection chamber (121); and

the tableware box (4) is arranged in the storage rack (22);

the method is characterized in that: the tableware box (4) comprises

The fixing frame (41) comprises two supporting strips (411) arranged side by side;

the at least two rotating pieces (42) are arranged along the length direction of the supporting bars (411), and two ends of each rotating piece (42) are respectively and rotatably connected to the two supporting bars (411); and

the adjusting assembly (43) can drive each rotating sheet (42) to deflect relative to the supporting strip (411) and has at least two states:

in the first state, the rotating sheets (42) are basically in a horizontal state, the adjacent edges of two adjacent rotating sheets (42) are close, and each rotating sheet (42) forms a platform for placing tableware on the whole;

in the second state, the rotating sheets (42) deviate from the horizontal state, and a flow guide channel for guiding the airflow is formed between the adjacent rotating sheets (42);

the bottom wall in the cabinet body (1) is provided with a heating element (3), the storage rack (22) is provided with the tableware box (4) at a position right above the heating element (3), and the rotating sheet (42) of the tableware box (4) in the first state is higher than the bottom surface of the storage rack (22), so that a sufficiently large gap is formed between the rotating sheet (42) in the first state and the heating element (3);

the tableware cleaning device is characterized by further comprising a drawer (2) which can be drawn in and out of the disinfection cavity (121), wherein the drawer (2) comprises a door body (21) and the storage rack (22) arranged on the back of the door body (21), and the tableware box (4) is positioned right above the heating element (3) in a state that the drawer (2) is closed;

the cabinet body (1) comprises

A housing (11); and

the inner container (12) is arranged in the shell (11), the disinfection cavity (121) is arranged in the inner container, an air outlet (122) and an air return opening (123) which are communicated with the disinfection cavity (121) are formed in the inner container (12), and an interlayer (111) is formed between the outer wall of the inner container (12) and the inner wall of the shell (11);

the interlayer (111) is internally provided with a circulating ventilation device (5), an air duct (51) is formed inside the circulating ventilation device (5), the inlet of the air duct (51) is communicated with the air outlet (122), the outlet of the air duct (51) is communicated with the air return opening (123), and the circulating ventilation device (5) can convey airflow from the inlet of the air duct (51) to the outlet of the air duct (51);

a first circulation channel (4111) is arranged inside the supporting bar (411), and when the drawer (2) is in a closed state, an inlet of the first circulation channel (4111) is communicated with the air return opening (123);

a second circulation channel (421) is arranged inside the rotating sheet (42), the inlet of the second circulation channel (421) is communicated with the outlet of the first circulation channel (4111), and the outlet of the second circulation channel (421) is communicated with the disinfection cavity (121);

in the first state, the outlet of the second flow channel (421) faces the dishes placed in the dish box (4); in the second state, the outlet of the second flow channel (421) is directed towards the heating element (3).

2. A disinfection cabinet as claimed in claim 1, wherein: the inside of the support bar (411) is hollow, an air inlet pipe (4112) communicated with the inner cavity of the support bar (411) is arranged on the end wall of the support bar (411) in an upwards protruding mode, a port of the air inlet pipe (4112) is an inlet of the first circulation channel (4111), at least two shaft holes (4113) which are arranged along the length direction of the support bar (411) at intervals are formed in the support bar (411), and the shaft holes (4113) are outlets of the first circulation channel (4111);

the inside of rotating piece (42) is cavity, and the tip of rotating piece (42) has and is hollow pivot (422), and this pivot (422) can insert with rotating and establish shaft hole (4113), the port of this pivot (422) does the entry of second circulation passageway (421), has seted up air outlet (423) on the lateral wall of rotating piece (42) one side, and this air outlet (423) does the export of second circulation passageway (421).

3. A disinfection cabinet as claimed in claim 1, wherein: the circulating ventilation device (5) comprises

A centrifugal fan (52) which is provided with an air suction port and an air exhaust port and can suck air flow from the air suction port and discharge the air flow from the air exhaust port, wherein the air suction port of the centrifugal fan (52) is an inlet of the air duct (51); and

and the inlet of the communication pipeline (53) is communicated with the exhaust port of the centrifugal fan (52), and the outlet of the communication pipeline (53) is the outlet of the air duct (51).

4. A disinfection cabinet as claimed in claim 1, wherein: the heating element (3) is strip-shaped and is arranged at the rear part of the bottom wall in the cabinet body (1) along the width direction of the cabinet body (1), and correspondingly, the tableware box (4) is arranged at the rear part of the storage rack (22) along the width direction of the cabinet body (1).

5. A disinfection cabinet as claimed in claim 4, wherein: in the second state, the rotating piece (42) is arranged to be inclined forwards gradually from bottom to top.

6. A disinfection cabinet as claimed in claim 4, wherein: the fixing frame (41) further comprises a side plate (412) erected at the front end of the supporting bar (411), and in the first state, each rotating sheet (42), the side plate (412) and the partial inner side wall of the storage rack (22) are surrounded to form a storage cavity (40) for accommodating tableware.

7. A disinfection cabinet as claimed in claim 6, wherein: the fixing frame (41) also comprises a supporting plate (413) supported below the side plate (412), the supporting plate (413) is placed on the bottom surface inside the commodity shelf (22), and the supporting plate (413) is provided with a circulating hole (4131) for fluid to pass through.

8. A disinfection cabinet as claimed in any one of claims 1 to 7, wherein: the adjusting component (43) comprises

The first gears (431) correspond to the rotating pieces (42) one by one and are in transmission connection with the corresponding rotating pieces (42); and

and a rack (432) engaged with each of the first gears (431).

9. A disinfection cabinet as claimed in claim 8, wherein: the adjusting component (43) also comprises

A second gear (433) engaged with the rack (432); and

and the power output shaft of the driving piece (434) is connected with the second gear (433) and is used for driving the second gear (433) to rotate.