CN216104039U - Garbage can and garbage storage device - Google Patents

Abstract

The utility model relates to a garbage bin and rubbish storage device, wherein, the garbage bin includes the box, the fan, and wind channel structure, it holds the chamber to have in the box, wind channel structure sets up the inside at the box, and include the wind channel and respectively with lower part inlet scoop and the upper portion mouth of blowing of wind channel intercommunication, the upper portion mouth of blowing is used for blowing to the upper portion opening that holds the chamber, lower part inlet scoop and the lateral wall lower part or the bottom intercommunication that holds the chamber, the fan sets up in the wind channel, be used for drawing wind and supplying air to the upper portion mouth of blowing from the lower part inlet scoop, the upper portion mouth of blowing is seted up on the lateral wall of box, the position of the mouth of blowing on upper portion is higher than the upper portion opening that holds the chamber. So, under the suction effect of fan, can form the atmospheric pressure difference in the interior appearance of disposal bag, the laying effect of disposal bag is good. The upper portion mouth of blowing is higher than the upper portion opening that holds the chamber, is convenient for blow to the upper portion opening that holds the chamber, and the upper portion mouth of blowing is seted up on the lateral wall of box, can set up the upper portion mouth of blowing without increasing extra structure at the top of box.

Description

Garbage can and garbage storage device

Technical Field

The utility model relates to a garbage bin manufacturing and designing field specifically relates to a garbage bin and rubbish storage device.

Background

With the gradual expansion of the application scenes of the intelligent trash can, more user demands promote the continuous development of the intelligent trash can technology.

Present intelligent garbage bin can realize automatic bagging, and present most intelligent garbage bin leans on induced drafting or bloies when automatic bagging, and the folk prescription is to the power of blowing or the required fan that induced drafts great, and required fan consumption is big, the noise is big, and user's use is experienced not well, and bagging effect is not good. In order to solve the problems, the intelligent garbage can with the functions of lower air draft and upper air blowing is developed, but the structure of the air draft motor and the air guide channel is complex, and air backflow easily occurs in the air guide channel to form internal circulation, so that the bagging effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a garbage bin and rubbish storage device, this garbage bin simple structure, cover bag are effectual.

In order to achieve the above object, the present disclosure provides a garbage can, including box, fan and wind channel structure, it holds the chamber to have in the box, the wind channel structure sets up the inside of box, and include the wind channel and respectively with the lower part inlet scoop and the upper portion mouth of blowing of wind channel intercommunication, the upper portion mouth of blowing be used for to the upper portion opening that holds the chamber is bloied, the lower part inlet scoop with the lateral wall lower part or the bottom intercommunication that hold the chamber, the fan sets up in the wind channel, be used for following the lower part inlet scoop induced drafts and to the air supply of upper portion mouth of blowing, the mouth of blowing of upper portion is seted up on the lateral wall of box, the position of the mouth of blowing of upper portion is higher than the upper portion opening that holds the chamber.

Optionally, the trash can further comprises a wind shielding structure, and the wind shielding structure is arranged in the wind channel and used for preventing air from circularly flowing in the wind channel.

Optionally, the wind shielding structure comprises at least one wind shielding plate arranged on the inner wall of the wind channel, a first end of the wind shielding plate is fixed on part of the inner wall of the wind channel and is arranged at an angle with the inner wall of the wind channel, and a second end of the wind shielding plate is spaced from other parts of the inner wall of the wind channel.

Optionally, the wind shielding structure includes at least one wind shielding plate disposed on an inner wall of the wind tunnel, a periphery of the wind shielding plate is in contact with the inner wall of the wind tunnel, and a plurality of via holes are provided on the wind shielding plate.

Optionally, an air guiding structure is arranged at an air outlet position of the upper air outlet, and the air guiding structure is used for guiding air blown out from the upper air outlet downwards or obliquely downwards into the accommodating cavity.

Optionally, the trash can further comprises a cover body, and the cover body is movably arranged on the box body to cover the upper opening of the accommodating cavity or move away from the upper opening of the accommodating cavity.

Optionally, the cover body is formed with two lugs extending downwards, the upper end of the box body is formed with an extending portion extending upwards and located between the two lugs, the cover body is rotatably connected to the box body through the lugs, and the upper air blowing port is opened at one side of the extending portion facing the inside of the box body.

Optionally, the garbage bin still includes the baffle, the baffle with the inside partition of box is first chamber and second chamber, first chamber is hold the chamber, upper portion mouth of blowing with the lower part inlet scoop is located on the baffle, the wind channel is located in the second chamber.

Optionally, the second chamber has a detachable side wall, the detachable side wall is a side wall of the second chamber opposite to the partition plate, and the second chamber further has ribs oppositely disposed on two sides of the upper air blowing opening and the lower air blowing opening, and the two ribs are both located between the partition plate and the detachable side wall, so that the partition plate, the detachable side wall, and the two ribs enclose the air duct.

Optionally, the distance between the two ribs gradually decreases in a direction from the lower air suction port to the upper air blowing port.

Optionally, an annular convex portion is arranged on one side, close to the first cavity, of the partition plate and surrounds the lower air suction opening, a through hole is formed in the side wall of the annular convex portion, and the through hole is communicated with the first cavity and the lower air suction opening.

Optionally, the baffle is close to on one side of second chamber wind lower part inlet scoop be provided with the opening towards the U-shaped mount pad of upper portion mouth of blowing, the fan is installed on the U-shaped mount pad, the lower part inlet scoop have the surface towards the fan, the terminal surface with the terminal surface contact of the air inlet end of fan.

Optionally, the garbage bin still includes speaker and the smoke alarm of electricity connection, be equipped with speaker sound outlet on the lateral wall of box, the inside of box is provided with and is used for the installation the speaker holding district of speaker, the speaker basis the alarm signal warning that the smoke alarm sent.

Optionally, the bottom of the accommodating cavity is provided with a garbage bag in-place detection device, the garbage bag in-place detection device is electrically connected with the fan, and the fan can stop running when the garbage bag in-place detection device detects that the garbage bag is located at a preset position.

As another aspect provided by the present disclosure, the present disclosure provides a garbage accommodating device, which includes a lower garbage can and the garbage can, wherein the lower end of the box body is provided with a mounting structure, so as to be mounted on the top of the lower garbage can through the mounting structure.

Through the technical scheme, the upper portion and the lower portion of the garbage can are respectively provided with the lower portion air suction opening and the upper portion air blowing opening, the air channel structure is communicated, under the suction effect of the fan, air pressure difference can be formed in the garbage bag, the garbage bag can be unfolded in the garbage can and attached to the inner wall of the box body as far as possible, the laying effect of the garbage bag is good, and the garbage can is simple in structure. In addition, the upper air blowing port is arranged on the side wall of the box body, so that the upper air blowing port is arranged without adding an additional structure on the top of the box body, and the structure of the garbage can is simplified. The blocking of throwing and processing of rubbish caused by the additionally-added structure is avoided, and the use experience is improved. In addition, the upper air blowing port is higher than the upper opening of the accommodating cavity, so that air can be blown to the upper opening of the accommodating cavity conveniently.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic front axial view of a trash can according to an embodiment of the present disclosure;

FIG. 2 is an isometric illustration of the interior of a trash can provided by one embodiment of the present disclosure;

fig. 3 is an axial view of a cover of a trash can according to an embodiment of the present disclosure;

FIG. 4 is an axial view of the air duct structure of the trash can according to one embodiment of the present disclosure, wherein the lower air inlet is shown;

FIG. 5 is an axial view of the air duct structure of the trash can according to an embodiment of the present disclosure;

FIG. 6 is a schematic partial sectional view illustrating an embodiment of an air duct of a trash can;

fig. 7 is an axial view of the back of a trash can according to an embodiment of the present disclosure.

Description of the reference numerals

1-a garbage can; 11-a box body; 111-a containment chamber; 1111-a first cavity; 1112-a second lumen; 112-an extension; 113-speaker sound outlet; 114-a detachable side wall; 12-a fan; 121-connecting plate; 13-a cover body; 131-a lug; 14-air duct structure; 141-an air duct; 1411-a wind shielding structure; 142-an upper air blowing port; 1421-wind guide structure; 143-lower air inlet; 1431-surface; 144-a rib; 145-U-shaped mount; 15-a separator; 151-speaker accommodation area.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, directional terms such as "upper, lower, left and right" are generally defined with reference to the drawing plane directions of the corresponding drawings. "inner and outer" refer to the inner and outer of the profile of the respective component.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 7, the present disclosure provides a trash can 1, including a box 11, a fan 12 and an air duct structure 14, a containing cavity 111 is provided in the box 11, the containing cavity 111 can be used for containing a trash bag, the air duct structure 14 is provided inside the box 11, and includes an air duct 141, and a lower air suction port 143 and an upper air blowing port 142 respectively communicated with the air duct 141, the upper air blowing port 142 is used for blowing air to an upper opening of the containing cavity 111, the lower air suction port 143 is communicated with a lower portion or a bottom portion of a sidewall of the containing cavity 111, the fan 12 is provided in the air duct 141 and is used for sucking air from the lower air suction port 143 and blowing air to the upper air blowing port 142, the upper air blowing port 142 is provided on the sidewall of the box 11, and the upper air blowing port 142 is higher than the upper opening of the containing cavity 111.

When the automatic bag sleeving function of the garbage can 1 works, the garbage bags which are not unfolded and laid are sleeved in the accommodating cavity 111, the fan 12 is started, air between the garbage bags and the box body 11 enters the air channel 141 through the lower air suction port 143 and is discharged from the upper air blowing port 142 through suction of the fan 12, air is blown towards the opening of the garbage bags, pressure difference is formed between the inside and the outside of the garbage bags, and the garbage bags are rapidly unfolded in the accommodating cavity 111 of the box body 11.

The portion of the lower air suction opening 143 communicating with the accommodating chamber 111 may be disposed at the lower portion of the accommodating chamber 111, and may also be disposed at the bottom of the accommodating chamber 111. When the garbage bin is arranged at the lower part of the accommodating cavity 111, air in the accommodating cavity 111 enters the air channel 141 through the air suction opening from the side surface, and garbage in the bin is not easy to block a communicated air opening due to gravity; when the suction device is arranged at the bottom of the accommodating cavity 111, the suction range is larger, the direction is more, and the suction speed is increased.

Through the technical scheme, the upper portion and the lower portion of the garbage can 1 are respectively provided with the lower air suction opening 143 and the upper air blowing opening 142, the garbage can is communicated through the air duct structure 14, under the suction effect of the fan 12, air pressure difference can be formed inside and outside the garbage bag, the garbage bag can be unfolded in the garbage can 1 and attached to the inner wall of the box body 11 as far as possible, the laying effect of the garbage bag is good, and the structure of the garbage can is simple. The upper air blowing port 142 is opened on the side wall of the box body 11, so that the upper air blowing port 142 may be provided without adding an additional structure to the top of the box body 11, which is advantageous for simplifying the structure of the trash can 1. The blocking of throwing and processing of rubbish caused by the additionally-added structure is avoided, and the use experience is improved. Further, the upper air blowing port 142 is higher than the upper opening of the accommodating chamber 111, facilitating air blowing toward the upper opening of the accommodating chamber 111.

Optionally, as shown in fig. 6, in an embodiment of the present disclosure, the trash can 1 further includes a wind shielding structure 1411, and the wind shielding structure 1411 is disposed in the wind duct 141 for preventing air from circulating in the wind duct 141.

The wind shielding structure 1411 is arranged in the wind channel 141, so that the effect of blocking backflow air can be achieved, air circulation in the wind channel 141 can be avoided, the air output of the upper air blowing port 142 can be guaranteed, and the bag blowing effect of the upper air blowing port 142 is improved.

The present disclosure does not limit the specific structure of the wind shielding structure 1411. Alternatively, as an embodiment of the present disclosure, as shown in fig. 6, the wind shielding structure 1411 includes at least one wind deflector disposed on an inner wall of the wind tunnel 141, a first end of the wind deflector is fixed on a portion of the inner wall of the wind tunnel 141 and is disposed at an angle with the inner wall of the wind tunnel 141, and a second end of the wind deflector is spaced apart from other portions of the inner wall of the wind tunnel 141. The wind shield is arranged at an angle with the inner wall of the air duct 141, and a gap is reserved between the wind shield and the inner wall of the air duct 141, so that the air flow in the air duct 141 passes through the gap, and when the air flow flows back, the wind shield can block the back-flowing air flow, and the air flow is prevented from circulating in the air duct 141.

Further, a wind screen may be disposed in the wind tunnel 141 in an obliquely upward manner. The wind deflector, which is disposed obliquely upward, may direct the air flow toward the upper air blowing opening 142 as the air flow passes through the wind deflector, so that more air flow is concentrated toward the upper air blowing opening 142.

Optionally, as another embodiment of the present disclosure, the wind shielding structure 1411 includes at least one wind shielding plate disposed on an inner wall of the wind tunnel 141, a periphery of the wind shielding plate is in contact with the inner wall of the wind tunnel 141, and a plurality of via holes are disposed on the wind shielding plate. The through hole on the wind shield enables the airflow in the air duct 141 to only pass through the through hole for circulation, and the wind shield can effectively block the backflow airflow and avoid the airflow from circulating in the air duct 141.

In order to improve the blowing effect of the upper blowing port 142 on the garbage bag, optionally, as an embodiment of the present disclosure, as shown in fig. 1, a wind guiding structure 1421 is disposed at the wind outlet position of the upper blowing port 142, and the wind guiding structure 1421 is configured to guide the air blown from the upper blowing port 142 downward or obliquely downward into the accommodating cavity 111 to blow the garbage bag. The wind guide structure 1421 is configured to allow the air flow directly blown from the upper air blowing port 142 to blow downward or obliquely downward toward the opening of the separable box 11, so as to help the garbage bag to be unfolded, and also to allow the upper air blowing port 142 to not only lay the garbage bag by blowing air but also perform air discharge.

Optionally, as an embodiment of the present disclosure, as shown in fig. 1, the trash can 1 further includes a cover 13, and the cover 13 is movably disposed on the box 11 to cover or remove the upper opening of the accommodating cavity 111. The movable cover 13 of the garbage can 1 can be moved away to expose the upper opening of the accommodating cavity 111 when the garbage is thrown, and can cover the upper opening of the accommodating cavity 111 when the garbage is stored, so that the peculiar smell of the garbage in the garbage can 1 is prevented from escaping.

Alternatively, as an embodiment of the present disclosure, as shown in fig. 3 and 4, two lugs 131 extending downward are formed on the cover 13, an extending portion 112 extending upward and located between the two lugs 131 is formed at the upper end of the box 11, the cover 13 is rotatably connected to the box 11 by the lugs 131, and the upper air blowing port 142 is opened at a side of the extending portion 112 facing the inside of the box 11. The cover 13 is hinged to the case 11 through the lug 131, and when the cover rotates, the function of exposing and covering the upper opening of the accommodating chamber 111 can be realized, and meanwhile, the upper air blowing port 142 is opened on the inner wall of the extending portion 112, and the air blowing operation of the upper air blowing port 142 is not affected by the opening and closing of the cover 13 and can be performed at any time.

The lug 131 may be connected to the extending portion 112 through a hinge shaft, or may be connected to another portion of the upper end of the box 11, which is not limited in this disclosure.

Alternatively, the cover 13 may be hinged to the case 11 with damping via the lug 131, so that the cover 13 may stay at any suitable position during the rotation, the opening degree of the upper opening of the accommodating cavity 111 may be adjusted, and the operation feeling may be improved. For example, a gear structure may be provided between the cover 13 and the housing 11 to achieve a damped articulation therebetween.

Optionally, as an embodiment of the present disclosure, as shown in fig. 2 and 5, the trash can 1 further includes a partition 15, the partition 15 divides the interior of the box 11 into a first cavity 1111 and a second cavity 1112, the first cavity 1111 is the above-mentioned accommodating cavity 111 to accommodate the trash bags, the upper air blowing port 142 and the lower air suction port 143 are located on the partition 15, and the air duct 141 is located in the second cavity 1112. With wind channel 141 and the chamber 111 that holds and separate through baffle 15, set up respectively in first chamber 1111 and second chamber 1112 for baffle 15 can play the divided effect, can prevent that the rubbish in the first chamber 1111 from getting into the second chamber 1112, thereby blocks wind channel 141, influences the normal operating of garbage bin 1.

Alternatively, as shown in fig. 5 and 7, the second chamber 1112 has a detachable side wall 114, the detachable side wall 114 is the side wall of the second chamber 1112 opposite to the partition plate 15, the second chamber 1112 further has a rib 144 oppositely disposed on both sides of the upper air blowing opening 142 and the lower air suction opening 143, and the two ribs 144 are located between the partition plate 15 and the detachable side wall 114, so that the partition plate 15, the detachable side wall 114 and the two ribs 144 enclose the air duct 141.

The detachable side wall 114 may be any one of the side walls of the second cavity 1112, for example, when the outer contour of the second cavity 1112 is a cube, the detachable side wall 114 may be a plurality of side walls, such as an upper side wall, a lower side wall, a left side wall, a right side wall; when the outer contour of the second cavity 1112 is a rectangular parallelepiped, the detachable side wall 114 may be several side walls on one circumferential side of the rectangular parallelepiped, which is not limited by the present disclosure.

In addition, the detachable side wall 114 is arranged to enable the second cavity 1112 to be opened at any time, so as to expose the air duct structure 14 and the fan 12 arranged in the second cavity 1112, and facilitate cleaning and maintenance of the air duct structure 14 and the fan 12.

Moreover, the rib 144 structure is arranged between the detachable side wall 114 and the partition 15 to form the air duct 141, the detachable side wall 114 is utilized, the overall structure is simplified, the detachable side wall 114 is used as a part of the air duct 141, and after the detachable side wall 114 is detached, the air duct 141 can be opened, so that the air duct 141 can be cleaned conveniently. And the air duct 141 and the second chamber 1112 share the detachable side wall 114, so that materials are saved.

It is understood that in other embodiments of the present disclosure, the air duct 141 may be constructed of a single closed duct.

Alternatively, as an embodiment of the present disclosure, as shown in fig. 5, the interval between the two ribs 144 is gradually decreased in a direction from the lower air suction port 143 to the upper air blowing port 142. The distance between the ribs 144 becomes smaller gradually, so that the cross-sectional area of the air duct 141 also becomes smaller along with the direction from the lower air suction port 143 to the upper air blowing port 142, and the flow rate of the air flow becomes larger gradually along with the reduction of the cross-sectional area of the air duct 141, and the arrangement can increase the air speed blown out from the upper air blowing port 142, so that the garbage bag in the accommodating cavity 111 is laid faster, and the laying effect is better.

Alternatively, as an embodiment of the present disclosure, an annular protrusion (not shown) is disposed around the lower air suction opening 143 on a side of the partition 15 close to the first chamber 1111, and a through hole is disposed on a side wall of the annular protrusion, and the through hole communicates the first chamber 1111 and the lower air suction opening 143. When the fan 12 is operated to suck air outwards, the garbage bag gradually approaches the inner wall of the accommodating cavity 111, in order to prevent the garbage bag from covering the lower air suction opening 143 in the sucking process, an annular convex part is arranged on the lower air suction opening 143, and the annular convex part is higher than the plane where the inner wall of the accommodating cavity 111 is located, so that even if the garbage bag covers the inner wall of the accommodating cavity 111, the annular convex part can jack up the garbage bag, a space is formed between the garbage bag and the inner wall of the accommodating cavity 111, and the garbage bag cannot cover the through hole on the side wall of the annular convex part. Meanwhile, a through hole is formed in the side wall of the annular convex part, and the through hole is communicated with the first cavity 1111 and the lower air suction opening 143, so that the lower air suction opening 143 is kept smooth.

Alternatively, in order to prevent the garbage from entering the air duct 141 from the lower air suction opening 143, a grill may be provided in the lower air suction opening 143.

Alternatively, as an embodiment of the present disclosure, as shown in fig. 4, a U-shaped mounting seat 145 opened toward the upper blowing port 142 is provided around the lower suction port 143 on a side of the partition 15 close to the second chamber 1112, the fan 12 is mounted on the U-shaped mounting seat 145, and the lower suction port 143 has a surface 1431 facing the fan 12, the surface 1431 being in contact with an end surface of the air intake end of the fan 12. With such an arrangement, when the fan 12 operates, the fan 12 only sucks air from the lower air suction opening 143, and does not suck air in the air duct 141, which is beneficial to ensuring that air flows from the lower air suction opening 143 to the upper air blowing opening 142.

The fan 12 may include a motor and a fan, among other things, mounted on a side wall of the U-shaped mount 145. When the fan 12 works, air sucked from the inside of the accommodating cavity 111 enters the air channel 141 from the periphery of the fan, and the U-shaped mounting seat 145 can concentrate air flow around the fan to one direction, namely, the air flow flows out from the opening facing the upper air blowing port 142, so that the directionality of the air flow is greatly improved, and the air circulation efficiency is improved.

Alternatively, as shown in fig. 5, the motor may be mounted on the U-shaped mount 145 through the connection plate 121, and the connection plate 121 is overlaid on the U-shaped mount 145 to form a passage structure opened toward the upper air blowing port 142.

Optionally, as an embodiment of the present disclosure, as shown in fig. 5 and 7, the trash can 1 further includes a speaker and a smoke alarm electrically connected, a speaker sound outlet 113 is provided on a side wall of the box body 11, a speaker accommodating area 151 for mounting the speaker is provided inside the box body 11, for example, the speaker accommodating area 151 may be provided on the partition 15, and the speaker gives an alarm according to an alarm signal sent by the smoke alarm. In the disposal of daily trash, fire species such as unextinguished cigarette ends may occur to ignite other trash, thereby possibly causing a fire. Set up smoke alarm in garbage bin 1, when rubbish in the bucket produced smog because of the burning, can trigger smoke alarm to send alarm signal through the speaker, remind the user, kill the conflagration hidden danger in the bud state, guarantee user's personal and property safety.

Optionally, in an embodiment of the present disclosure, a trash bag in-place detection device is disposed at the bottom of the accommodating cavity 111, the trash bag in-place detection device is electrically connected to the fan 12, and the fan 12 can stop operating when the trash bag in-place detection device detects that the trash bag is located at the preset position. Set up disposal bag detection device that targets in place in the bottom that holds chamber 111, can realize laying the in-process at the disposal bag, when the laminating degree that the disposal bag and hold chamber 111 inner wall satisfied the requirement, in time stopped fan 12's operation, promoted the holistic degree of automation of garbage bin 1.

The specific structure and type of the garbage bag in-place detection device are not limited in the present disclosure. Alternatively, the disposal bag in-position detecting means may be a light-sensitive sensor or a proximity switch.

According to another aspect of the present disclosure, the present disclosure also provides a garbage containing apparatus, which comprises the lower garbage can and the garbage can 1 as described above, and the lower end of the box body 11 is provided with a mounting structure to be mounted on the top of the lower garbage can through the mounting structure. That is, the garbage bin that this disclosure embodiment provided can also be used with other garbage bins combinations.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (15)

1. A garbage can is characterized by comprising a box body (11), a fan (12) and an air duct structure (14), the box body (11) is internally provided with a containing cavity (111), the air duct structure (14) is arranged inside the box body (11), and comprises an air duct (141) and a lower air suction opening (143) and an upper air blowing opening (142) which are respectively communicated with the air duct (141), the upper air blowing port (142) is for blowing air toward an upper opening of the accommodation chamber (111), the lower air suction opening (143) is communicated with the lower part or the bottom of the side wall of the accommodating cavity (111), the fan (12) is arranged in the air duct (141), for sucking air from the lower air suction opening (143) and blowing air to the upper air blowing opening (142), the upper air blowing port (142) is opened on a side wall of the box body (11), the upper air blowing port (142) is positioned higher than the upper opening of the receiving chamber (111).

2. A waste bin according to claim 1, wherein the waste bin (1) further comprises a wind blocking structure (1411), the wind blocking structure (1411) being arranged within the wind tunnel (141) for preventing air from circulating within the wind tunnel (141).

3. A waste bin according to claim 2, wherein the wind deflector (1411) comprises at least one wind deflector arranged on an inner wall of the wind tunnel (141), a first end of the wind deflector being fixed to part of the inner wall of the wind tunnel (141) and arranged at an angle to the inner wall of the wind tunnel (141), and a second end of the wind deflector being spaced from the other part of the inner wall of the wind tunnel (141).

4. A waste bin according to claim 2, wherein the wind deflector (1411) comprises at least one wind deflector arranged on an inner wall of the wind tunnel (141), the wind deflector having a periphery in contact with the inner wall of the wind tunnel (141), the wind deflector being provided with a plurality of through holes.

5. A trash can as claimed in claim 1, wherein the air outlet position of the upper air outlet (142) is provided with an air guiding structure (1421), and the air guiding structure (1421) is used for guiding the air blown out from the upper air outlet (142) downwards or obliquely downwards into the accommodating cavity (111).

6. A waste bin according to any one of claims 1-5, characterized in that the waste bin (1) further comprises a cover (13), and the cover (13) is movably arranged on the box body (11) to cover the upper opening of the accommodating cavity (111) or move away from the upper opening of the accommodating cavity (111).

7. A waste bin according to claim 6, wherein the cover (13) is formed with two lugs (131) extending downwards, the upper end of the bin body (11) is formed with an extension (112) extending upwards and located between the two lugs (131), the cover is rotatably connected to the bin body (11) by the lugs (131), and the upper air blowing opening is opened at a side of the extension (112) facing the inside of the bin body (11).

8. A waste bin according to any one of claims 1-5, c h a r a c t e r i z e d in that the waste bin (1) further comprises a partition (15), the partition (15) dividing the interior of the box (11) into a first chamber (1111) and a second chamber (1112), the first chamber (1111) being the receiving chamber (111), the upper air blowing opening (142) and the lower air suction opening (143) being located on the partition (15), the air duct (141) being located in the second chamber (1112).

9. A waste bin according to claim 8, wherein the second chamber (1112) has a detachable side wall (114), the detachable side wall (114) is the side wall of the second chamber (1112) opposite to the partition (15), the second chamber (1112) further has a rib (144) oppositely disposed at two sides of the upper air blowing opening (142) and the lower air suction opening (143), and two ribs (144) are disposed between the partition (15) and the detachable side wall (114), so that the partition (15), the detachable side wall (114) and two ribs (144) enclose the air duct (141).

10. A waste bin according to claim 9, wherein the spacing between the ribs (144) is gradually reduced in a direction from the lower air suction opening (143) to the upper air blowing opening (142).

11. A waste bin according to claim 8, characterized in that the partition (15) is provided with an annular protrusion around the lower suction opening (143) on the side close to the first cavity (1111), the annular protrusion being provided with a through hole on its side wall, the through hole communicating the first cavity (1111) with the lower suction opening (143).

12. A waste bin according to claim 8, characterized in that the partition (15) is provided with a U-shaped mounting (145) around the lower suction opening (143) on the side close to the second cavity (1112) with the fan (12) mounted on the U-shaped mounting (145), the lower suction opening (143) having a surface (1431) facing the fan (12), the surface (1431) being in contact with the end face of the air inlet end of the fan (12).

13. A trash can according to any one of claims 1-5, characterized in that the trash can (1) further comprises a speaker and a smoke alarm which are electrically connected, a speaker sound outlet (113) is arranged on the side wall of the box body (11), a speaker accommodating area (151) for installing the speaker is arranged inside the box body (11), and the speaker gives an alarm according to an alarm signal sent by the smoke alarm.

14. A waste bin according to any one of claims 1-5, wherein the bottom of the accommodating cavity (111) is provided with a waste bag in-position detection device, the waste bag in-position detection device is electrically connected with the fan (12), and the fan (12) can stop running when the waste bag in-position detection device detects that the waste bag is in a preset position.

15. A waste collection device comprising a lower bin and a bin (1) according to any one of claims 1 to 14, the bin (11) being provided at a lower end thereof with a mounting formation to be mounted on top of the lower bin by the mounting formation.

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