Trash cans and sweeping robots

Abstract

The present invention describes a trash can and a sweeping robot. The trash can includes: a trash can body, with a trash inlet and a fan suction port respectively provided on its side; a plurality of cavities provided in the trash can body, with two adjacent cavities connected in sequence, and the first and last cavities respectively connected to the trash inlet and the fan suction port; and a plurality of filters respectively provided between two adjacent cavities, and between the cavities connected to the fan suction port and the fan suction port; wherein the plurality of cavities are staggered in the horizontal or vertical positions of the trash can body, forming a tortuous passage from the trash inlet through the plurality of cavities to the fan suction port. As a result, when the external fan generates suction, a redirected air duct will be formed inside the trash can, which can reduce the wind speed. Combined with the filtering of the filter, the garbage can be better graded and stored in each cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of household intelligent robots, and in particular to a trash can and a sweeping robot. Background Art

[0002] With the continuous development of smart home technology, the popularity of sweeping robots is also increasing. Sweeping robots, also known as automatic cleaning machines, smart vacuums, and robot vacuum cleaners, can automatically clean the floor in the room by using artificial intelligence.

[0003] A sweeping robot typically uses a brushing and vacuuming method to collect ground debris into its own trash bin, completing the cleaning process. The trash bin has a fan suction port connected to the robot's fan, and a trash inlet connected to the robot's vacuum channel. During the trash collection process, some sweeping robots experience excessive suction from their fans, causing some small pieces of debris to enter the trash inlet and not be effectively retained in the bin. Instead, they are discharged through the fan suction port, contaminating the cleaned floor. Summary of the Invention

[0004] In view of the above existing situation, the present invention aims to provide a trash can and a sweeping robot, which can better keep the trash in the trash can.

[0005] To this end, a first aspect of the present invention provides a trash can, comprising: a trash can body, whose sides are respectively provided with a trash inlet and a fan suction port; a plurality of cavities, which are arranged in the trash can body, two adjacent cavities are connected in sequence, and the head and tail cavities are respectively connected to the trash inlet and the fan suction port, and a plurality of filters, which are respectively arranged between two adjacent cavities, and between the cavities connected to the fan suction port and the fan suction port; wherein the plurality of cavities are staggered in the horizontal position or vertical position of the trash can body, forming a tortuous passage from the trash inlet through the plurality of cavities in sequence to the fan suction port.

[0006] In the trash can involved in the present invention, optionally, the multiple cavities include: a first cavity, one side of which is connected to the garbage inlet; a second cavity, which is arranged on one side of the first cavity, and the top of the second cavity is connected to the top of the first cavity; and a third cavity, which is arranged at the top of the second cavity, the bottom of the third cavity is connected to the second cavity, and the top of the third cavity is connected to the fan suction port, wherein the multiple filters include a barrel-shaped filter, the barrel-shaped filter cover is arranged at the bottom of the third cavity, and the side wall of the barrel-shaped filter close to the first cavity is a sealing structure.

[0007] In the trash can involved in the present invention, optionally, the fan suction port is located on one side of the third cavity and has a preset distance from the third cavity.

[0008] In the trash can involved in the present invention, optionally, the third cavity has a trumpet-shaped structure, and the diameter of the opening end close to the second cavity is smaller than the diameter of the opening end away from the second cavity.

[0009] In the trash can involved in the present invention, optionally, a trash outlet is provided on one side of the first cavity, and a baffle covering the trash outlet is provided; the baffle is rotatably connected to the first cavity through a rotating shaft, and a torsion spring is provided between the baffle and the first cavity, and the torsion spring enables the baffle to cover the trash outlet tightly.

[0010] In the trash can involved in the present invention, optionally, the trash can includes an upper shell and a lower shell provided at the bottom of the upper shell, the first cavity and the second cavity are opened inside the lower shell, and the upper shell is provided with the third cavity.

[0011] In the trash can involved in the present invention, optionally, one side of the upper shell is rotatably connected to the lower shell via a rotating shaft, the lower shell is provided with a blocking block on one side relative to the rotating shaft, and a locking member that engages with the blocking block is provided on one side relative to the upper shell relative to the rotating shaft.

[0012] In the trash can involved in the present invention, optionally, a water guide member connected to an external water source is provided in the second cavity, and a water inlet and a nozzle connected to the water inlet are provided at the bottom of the upper shell corresponding to the second cavity; the position of the water inlet corresponds to the position of the water outlet of the water guide member, and when the upper shell covers the lower shell, the water inlet is connected to the water outlet of the water guide member; and a drain valve is provided at the bottom of the lower shell.

[0013] In the trash can involved in the present invention, optionally, an electrode-type liquid level sensor is further provided on the top of the second cavity.

[0014] A second aspect of the present invention provides a sweeping robot comprising the above-mentioned trash can.

[0015] When the trash can involved in the present invention is in use, an external fan generates suction on the fan suction port, drawing trash from the trash inlet into the chamber. The trash can includes multiple chambers, and trash passes through each chamber in sequence as it is drawn into the trash can. Because the multiple chambers are staggered horizontally or vertically within the trash can body, a tortuous passage forms from the trash inlet through the multiple chambers to the fan suction port. This creates a directional wind duct within the trash can when the fan generates suction, reducing wind speed. This, combined with the filtration of the filter, allows trash to be graded and retained in different chambers, reducing the likelihood of it being drawn into the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Embodiments of the present invention will now be explained in further detail, by way of example only, with reference to the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram showing the overall structure of the trash can involved in the present invention.

[0018] Figure 2 It is a schematic diagram showing the overall structure of the trash can involved in the present invention with the upper shell and the lower shell separated.

[0019] Figure 3 1 is an exploded view showing a waste bin according to the present invention.

[0020] Figure 4 FIG. 1 is an exploded view showing another perspective of the waste bin according to the present invention.

[0021] Figure 5 1 is a cross-sectional view and an air duct schematic diagram showing a trash can according to the present invention.

[0022] Figure 6 1 is a schematic diagram showing the overall structure of the trash can involved in the present invention from another perspective.

[0023] Figure 7 FIG. 1 is an exploded view showing another perspective of the waste bin according to the present invention.

[0024] Figure numerals: 1, garbage inlet; 2, fan suction port; 3, filter; 31, barrel-shaped filter; 32, first plate-shaped filter; 33, second plate-shaped filter; 4, first cavity; 5, second cavity; 6, third cavity; 7, garbage outlet; 8, baffle; 9, snap-fit ​​part; 10, water guide; 11, water inlet; 12, nozzle; 13, electrode-type liquid level sensor; 14, shell cover; 001, upper shell; 002, lower shell. DETAILED DESCRIPTION

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, identical components will be assigned identical reference numerals, and duplicate descriptions will be omitted. Furthermore, the accompanying drawings are merely schematic, and the proportions of the dimensions of the components and the shapes of the components may differ from the actual ones.

[0026] Figure 1 It is a schematic diagram showing the overall structure of the trash can involved in the present invention. Figure 2 It is a schematic diagram showing the overall structure of the trash can involved in the present invention with the upper shell and the lower shell separated. Figure 3 1 is an exploded view showing a waste bin according to the present invention. Figure 4 FIG. 1 is an exploded view showing another perspective of the waste bin according to the present invention. Figure 5 1 is a cross-sectional view and an air duct schematic diagram showing a trash can according to the present invention.

[0027] Figure 6 1 is a schematic diagram showing the overall structure of the trash can involved in the present invention from another perspective. Figure 7 FIG. 1 is an exploded view showing another perspective of the waste bin according to the present invention.

[0028] Existing robot vacuums typically use a brushing and vacuuming method to collect ground debris into their own trash bin, completing the cleaning process. The trash bin has a fan suction port 2 connected to the robot's fan, and a trash inlet 1 connected to the robot's dust collection channel. During the trash collection process, some robots experience excessive suction from their fans, causing some small pieces of debris to enter through the trash inlet 1 and not remain effectively within the bin. Instead, they are discharged through the fan suction port 2, contaminating the cleaned floor.

[0029] For this purpose, refer to Figures 1 to 7 A first aspect of the present invention provides a trash bin, comprising: a trash bin body, with a trash inlet 1 and a fan suction port 2 respectively provided on its sides; a plurality of cavities provided in the trash bin body, with two adjacent cavities connected in sequence, and the head and tail cavities respectively connected to the trash inlet 1 and the fan suction port 2, and a plurality of filters 3 respectively provided between two adjacent cavities and between the cavity connected to the fan suction port 2 and the fan suction port 2; wherein the plurality of cavities are staggered in the horizontal position or vertical position of the trash bin body, forming a tortuous passage from the trash inlet 1 through the plurality of cavities to the fan suction port 2.

[0030] When the trash bin of the present invention is in use, an external fan generates suction on the fan suction port 2, drawing trash from the trash inlet 1 into the chamber. The trash bin includes multiple chambers, and as trash is drawn into the bin, it passes through each chamber in sequence. Because the multiple chambers are staggered horizontally or vertically within the bin body, the trash inlet 1 forms a tortuous passage from the multiple chambers to the fan suction port 2. This creates a directional wind duct within the bin when the fan generates suction, reducing wind speed. This, combined with the filtration of the filter screen 3, allows trash to be graded and retained in different chambers, reducing the likelihood of it being drawn into the fan. In this embodiment, the multiple cavities include: a first cavity 4, one side of which is connected to the garbage inlet 1; a second cavity 5, which is arranged on one side of the first cavity 4, and the top of the second cavity 5 is connected to the top of the first cavity 4; and a third cavity 6, which is arranged at the top of the second cavity 5, the bottom of the third cavity 6 is connected to the second cavity 5, and the top of the third cavity 6 is connected to the fan suction port 2, wherein the multiple filters 3 include a barrel-shaped filter 31, the barrel-shaped filter 31 cover is arranged at the bottom of the third cavity 6, and the barrel-shaped filter 31 is a sealed structure close to the side wall of the first cavity 4.

[0031] In this embodiment, the trash can includes an upper shell 001 and a lower shell 002 provided at the bottom of the upper shell 001 . A first cavity 4 and a second cavity 5 are provided inside the lower shell 002 , and a third cavity 6 is provided in the upper shell 001 .

[0032] Specifically, refer to Figure 5The path of the wind direction shown is schematic. Under the action of the fan, the wind enters from the garbage inlet 1 on the side of the first cavity 4. After passing through the filter screen 3, the wind is blocked by the bottom of the upper shell 001, so that the wind will continue to flow horizontally toward the direction close to the second cavity 5. Since the side wall of the barrel-shaped filter screen 31 close to the first cavity 4 is a sealed structure, the wind will flow downward between the second cavity 5 and the side wall of the barrel-shaped filter screen 31 under the obstruction of the side wall of the barrel-shaped filter screen 31. After entering the second cavity 5, the wind will continue to pass through the top of the barrel-shaped filter screen 31 and the side of the barrel-shaped filter screen 31 away from the sealing structure and enter the third cavity 6 upward. In this way, the garbage will enter from the garbage inlet 1 on the side of the first cavity 4 in this wind direction path. Since the second cavity 5 is located on one side of the first cavity 4, but the tops of the two are connected, a redirected air duct is formed when the garbage inlet 1 passes through the first cavity 4 to the second cavity 5, so that the wind speed slows down when the first cavity 4 reaches the second cavity 5, ensuring that more garbage remains in the first cavity 4. Combined with the filtration of the filter 3, larger garbage will remain in the first cavity 4, and smaller garbage can enter the second cavity 5. The third cavity 6 is located at the top of the second cavity 5, and the garbage entering the second cavity 5 will be filtered by the filter 3 before entering the third cavity 6. Among them, the barrel-shaped filter 31 covering the bottom of the third cavity 6 is a sealed structure near the side wall of the first cavity 4. This can prevent the garbage in the first cavity 4 from being directly sucked into the third cavity 6 without passing through the second cavity 5. The sealing structure also serves the purpose of changing the flow direction of the air duct, slowing down the wind speed, and further retaining the garbage in the cavity.

[0033] In this embodiment, the fan suction port 2 is located on one side of the third cavity 6 and has a preset distance from the third cavity 6. In this way, the wind speed between the fan suction port 2 and the third cavity 6 can be slowed down, and the garbage can be better retained in the cavity.

[0034] Reference Figures 3 to 5 In this embodiment, the third cavity 6 is a trumpet-shaped structure, and the diameter of the opening end close to the second cavity 5 is smaller than the diameter of the opening end away from the second cavity 5. In this way, the opening end of the third cavity 6 close to the second cavity 5 is smaller, and less garbage enters the third cavity 6.

[0035] After the robot vacuum finishes its work, a large amount of large trash will be collected in the first cavity 4 of the trash bin. In this embodiment, a trash outlet 7 is provided on one side of the first cavity 4, along with a baffle 8 that covers the trash outlet 7. The baffle 8 is rotatably connected to the first cavity 4 via a rotating shaft. A torsion spring is provided between the baffle 8 and the first cavity 4, securing the baffle 8 to the trash outlet 7. Specifically, the fan on the external base station generates negative pressure on the outside of the baffle 8. This negative pressure draws the baffle 8 open, drawing the trash out of the first cavity 4 and collecting it in the external base station, thus completing the removal of the trash from the first cavity 4.

[0036] In this embodiment, one side of the upper housing 001 is rotatably connected to the lower housing 002 via a rotating shaft. A latch is provided on the side of the lower housing 002 that faces the rotating shaft, and a latching member 9 that engages with the latch is provided on the side of the upper housing 001 that faces the rotating shaft. This allows the upper housing 001 and lower housing 002 to be rotatably opened and closed. The latching member 9 engages with the latch, locking the upper housing 001 and lower housing 002. By releasing the latch, the upper housing 001 can be opened, allowing easy access to the first cavity 4 and second cavity 5 of the lower housing 002.

[0037] In this embodiment, the top of the upper shell 001 is provided with a shell cover 14 that is rotatably connected to one side thereof. The shell cover 14 can be opened to clean the filter screen 3 or the third cavity 6 of the upper shell 001.

[0038] In this embodiment, the plurality of filters 3 also includes a first plate-shaped filter 32 located at the top of the first cavity 4, and a second plate-shaped filter 33 located at the top of the third cavity 6 and between it and the fan inlet 2. Both the first plate-shaped filter 32 and the barrel-shaped filter 31 are connected to the top of the upper housing 001 by snap-fitting, and can be released from the upper housing 001 for cleaning. The second plate-shaped filter 33 is placed at the bottom of the housing cover 14, completely covering the second housing to achieve a better filtering effect.

[0039] Since the fine garbage that enters the second cavity 5 is relatively light and small, mostly dust, water washing can better clean the second cavity 5. Therefore, in this embodiment, a water guide 10 connected to an external water source is provided in the second cavity 5. The bottom of the upper shell 001 corresponding to the second cavity 5 is provided with a water inlet 11 and a nozzle 12 connected to the water inlet 11. The position of the water inlet 11 corresponds to the position of the water outlet of the water guide 10, and when the upper shell 001 covers the lower shell 002, the water inlet 11 is connected to the water outlet of the water guide 10. A drain valve is provided at the bottom of the lower shell 002. In this way, when the second cavity 5 needs to be cleaned, the nozzle 12 sprays clean water from the top of the second cavity 5. After cleaning is completed, the drain valve can be released to discharge the sewage, thereby completing the cleaning of the second cavity 5.

[0040] In this embodiment, an electrode-type liquid level sensor 13 is also installed at the top of the second cavity 5. Specifically, it can be located at the bottom of the upper housing 001 corresponding to the second cavity 5. This electrode-type liquid level sensor 13 uses the conductivity of the liquid to detect the liquid level. When the clean water in the second cavity 5 reaches a preset level, the electrode-type liquid level sensor 13 triggers a protection signal. Upon receiving the signal, the external base station stops adding water to the second cavity.

[0041] In this embodiment, sealing rings are provided at positions corresponding to the bottom plate of the upper shell 001 and the edges of the first cavity 4 and the second cavity 5 .

[0042] In this embodiment, an electrode contact is provided on the side of the upper shell 001, which is electrically connected to the electrode-type liquid level sensor 13 and the sweeping robot.

[0043] A second aspect of the present invention provides a sweeping robot comprising the above-mentioned trash can.

[0044] When the trash bin of the present invention is in use, an external fan generates suction on the fan suction port 2, drawing trash from the trash inlet 1 into the chamber. The trash bin includes multiple chambers, and as trash is drawn into the bin, it passes through each chamber in sequence. Because the multiple chambers are staggered horizontally or vertically within the bin body, the trash inlet 1 forms a tortuous passage from the multiple chambers to the fan suction port 2. This creates a directional wind duct within the bin when the fan generates suction, reducing wind speed. This, combined with the filtration of the filter screen 3, allows trash to be graded and retained in different chambers, reducing the likelihood of it being drawn into the fan.

[0045] Although the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it will be understood that the above description does not limit the present invention in any form. Those skilled in the art may modify and change the present invention as needed without departing from the spirit and scope of the present invention, and these modifications and changes all fall within the scope of the present invention.

Claims

1. A trash can, characterized in that: include: The garbage bin body has a garbage inlet and a fan suction port on its side; Multiple cavities are provided in the trash bin body, two adjacent cavities are connected in sequence, and the first and last cavities are connected to the trash inlet and the fan suction port respectively, and a plurality of filter screens, which are respectively arranged between two adjacent cavities, and between the cavity connected to the fan suction port and the fan suction port; The plurality of cavities are staggered in the horizontal or vertical positions of the trash bin body, forming a tortuous passage from the trash inlet through the plurality of cavities to the fan suction port; the trash inlet and the fan suction port are arranged on two opposite sides of the trash bin body; The plurality of cavities include: a first cavity, one side of which is in communication with the garbage inlet; a second cavity, which is provided on one side of the first cavity, and the top of the second cavity is connected to the top of the first cavity; and a third cavity, which is provided at the top of the second cavity, the bottom of the third cavity being in communication with the second cavity, and the top of the third cavity being in communication with the fan suction port, wherein the plurality of filters include a barrel-shaped filter, the barrel-shaped filter cover being provided at the bottom of the third cavity, and the barrel-shaped filter being in a sealed structure near the side wall of the first cavity; the plurality of filters further include a first plate-shaped filter provided at the top of the first cavity, and a second plate-shaped filter provided at the top of the third cavity and between the third cavity and the fan suction port; The trash can includes an upper shell and a lower shell provided at the bottom of the upper shell, the first cavity and the second cavity are provided inside the lower shell, and the third cavity is provided in the upper shell; A water guide member connected to an external water source is provided in the second cavity, and a water inlet and a nozzle connected to the water inlet are provided at the bottom of the upper shell corresponding to the second cavity; The position of the water inlet corresponds to the position of the water outlet of the water guide, and when the upper shell covers the lower shell, the water inlet is connected to the water outlet of the water guide; A drain valve is provided at the bottom of the lower shell.

2. The trash can according to claim 1, characterized in that The fan suction port is located on one side of the third cavity and has a preset distance from the third cavity.

3. The trash can according to claim 2, characterized in that: The third cavity is in a trumpet-shaped structure, and a diameter of an opening end close to the second cavity is smaller than a diameter of an opening end away from the second cavity.

4. The trash can according to claim 3, characterized in that: A garbage outlet is provided on one side of the first cavity, and a baffle covering the garbage outlet is provided; The baffle is rotatably connected to the first cavity via a rotating shaft. A torsion spring is provided between the baffle and the first cavity, and the torsion spring enables the baffle to tightly cover the garbage outlet.

5. The trash can according to claim 4, characterized in that: One side of the upper shell is rotatably connected to the lower shell via a rotating shaft. A clamping block is provided on one side of the lower shell relative to the rotating shaft, and a locking piece engaged with the clamping block is provided on one side of the upper shell relative to the rotating shaft.

6. The trash can according to claim 1, characterized in that An electrode type liquid level sensor is also provided on the top of the second cavity.

7. A sweeping robot, characterized in that: It comprises the trash can according to any one of claims 1-6.

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