Dirt box and mobile nursing robot

Abstract

The utility model relates to the technical field of dirt box cleaning equipment, and provides a dirt box and a mobile nursing robot. The dirt box comprises an upper shell, a lower shell and a cleaning device. The upper shell is provided with a dirt inlet allowing dirt to pass through, the lower shell is connected with the upper shell, the upper shell and the lower shell define a containing cavity for containing the dirt, the cleaning device is installed on the upper shell, at least part of the cleaning device is located in the containing cavity, and the cleaning device is used for automatically cleaning the interior of the dirt box. Thus, the cleaning device is arranged on the upper shell of the dirt box, water flow can fully clean the dirt box from top to bottom, cleaning of the dirt box can be achieved without manual operation, the automation degree of a product is improved, the difficulty of cleaning the dirt box by a user is reduced, and good use feeling is brought to the user.

Description

Technical Field

[0001] This utility model relates to the technical field of waste bin cleaning equipment, and in particular to a waste bin and a mobile care robot. Background Technology

[0002] Currently, mobile devices such as RVs, trains, and long-distance buses are typically equipped with toilets to improve convenience. These toilets have waste collection tanks, which are usually cleaned by manually emptying and shaking them after disassembly. Manual cleaning presents hygiene issues and is prone to incomplete cleaning, increasing the difficulty for users and compromising cleaning effectiveness, ultimately leading to a poor user experience. Utility Model Content

[0003] In view of this, the present invention provides a waste bin and a mobile care robot to solve the technical problem of difficult waste bin cleaning.

[0004] To solve the above problems, the technical solution of this utility model is as follows:

[0005] A waste bin includes: an upper shell with an inlet for waste to pass through; a lower shell connected to the upper shell, the upper shell and the lower shell forming a cavity for receiving waste; and a cleaning device, at least partially mounted on the upper shell and at least partially located in the cavity, the cleaning device being used to automatically clean the interior of the waste bin; wherein the cleaning device has at least a first nozzle and a second nozzle; the first nozzle and the second nozzle are respectively located on opposite sides of the inlet, and the spraying directions of the first nozzle and the second nozzle are opposite.

[0006] In some embodiments, the cleaning device includes: a water supply pipe installed on the upper or lower shell and connected to a water supply device, the water supply pipe being used to supply water to at least the first nozzle and the second nozzle, both of which are connected to the water supply pipe; wherein the first nozzle and the second nozzle are both installed on the upper shell, and at least the nozzles extend into the receiving cavity.

[0007] In some embodiments, the water delivery pipe is located outside the receiving cavity and is mounted on the outer surface of the upper shell.

[0008] In some embodiments, the cleaning device further includes: a water spray pipe, mounted on the upper housing and extending along at least a portion of the contour path of the receiving cavity, the water spray pipe being connected to the water delivery pipe or the water supply device; wherein the water spray pipe has a plurality of spaced-apart water outlets, each of the water outlets being located within the receiving cavity, for rinsing the sidewalls of the waste tank respectively.

[0009] In some embodiments, the cleaning device further includes a third nozzle mounted on the upper housing and connected to the water supply pipe, the third nozzle being located between the first nozzle and the second nozzle; wherein the third nozzle faces a sidewall different from that being rinsed by each of the water outlets.

[0010] In some embodiments, the waste tank further includes a vent for connecting the containment cavity to the outside atmosphere, the vent being located on the upper shell; wherein the vent is positioned in the spray direction of the third nozzle.

[0011] In some embodiments, the diameter of the water delivery pipe is smaller than the diameter of the spray pipe.

[0012] In some embodiments, the waste bin further includes a mesh cover disposed within the receiving cavity and located below the waste inlet, the mesh cover being used at least to filter waste entering the receiving cavity; wherein the mesh cover is connected to the upper shell and / or the lower shell.

[0013] In some embodiments, the waste tank further includes a sewage pump disposed at the bottom of the receiving cavity, the sewage pump being used to pump out the waste from the receiving cavity.

[0014] This utility model embodiment also provides a mobile nursing robot, which includes: a main body and a waste bin as described in any of the above embodiments, wherein the waste bin is disposed inside the main body.

[0015] This utility model provides a waste bin and a mobile care robot. The waste bin includes an upper shell, a lower shell, and a cleaning device. The upper shell has a waste inlet for waste to pass through. The lower shell is connected to the upper shell, and the upper and lower shells together form a cavity for containing waste. The cleaning device is at least partially mounted on the upper shell and at least partially located in the cavity. The cleaning device is used to automatically clean the inside of the waste bin. The cleaning device has at least a first nozzle and a second nozzle. The first nozzle and the second nozzle are located on opposite sides of the waste inlet, and the spraying directions of the first nozzle and the second nozzle are opposite. In this way, by installing a cleaning device on the upper shell of the waste tank, water can thoroughly clean the waste tank from top to bottom, eliminating the need for manual operation. This increases the product's automation level and reduces the difficulty of operation for users. Simultaneously, by positioning the first and second spray nozzles opposite each other and spraying water in opposite directions, a circular vortex is formed within the waste tank during the cleaning process. The waste rotates with the water flow and is discharged from the waste tank with the water, ensuring thorough removal and effective waste disposal. This allows the mobile cleaning robot to automatically perform cleaning without manual intervention, providing users with a superior experience. Attached Figure Description

[0016] Figure 1 A schematic diagram of the assembly structure of the waste bin provided in this embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the cleaning device provided in an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of the water flow direction of the cleaning device provided in this embodiment of the utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Waste bin; 11. Upper shell; 12. Lower shell; 13. Cleaning device; 14. Vent; 15. Mesh cover; 16. Sewage pump; 100. Receiving cavity; 110. Sewage inlet; 131. First nozzle; 132. Second nozzle; 133. Water supply pipe; 134. Spray pipe; 135. Third nozzle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0023] In the following description, the terms "first," "second," and "..." are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0025] like Figure 1 As shown, this embodiment of the utility model provides a waste bin 1, including an upper shell 11, a lower shell 12, and a cleaning device 13. The upper shell 11 has a waste inlet 110 for waste to pass through, and the lower shell 12 is connected to the upper shell 11. The upper shell 11 and the lower shell 12 together form a receiving cavity 100 for receiving waste. The cleaning device 13 is at least partially installed on the upper shell 11 and at least partially located in the receiving cavity 100. The cleaning device 13 is used to automatically clean the inside of the waste bin 1.

[0026] Understandably, the receiving cavity 100 inside the waste bin 1 is formed by an upper shell 11 and a lower shell 12. A waste inlet 110 is located on the upper shell 11, through which waste enters the receiving cavity 100. Once the waste bin 1 is full, the waste is discharged. After discharge, some waste remains in the waste bin 1, requiring cleaning by a cleaning device 13. Specifically, the cleaning device 13 is mounted on the upper shell 11, partially extending into the receiving cavity 100. The portion of the cleaning device 13 inserted into the receiving cavity 100 injects water, flushing the inner wall of the waste bin 1 with the water flow, washing away the remaining waste from the inner wall, and discharging it with the water flow, thus completing the cleaning process. In this process, no manual cleaning is required; the waste bin 1 can automatically complete the cleaning task, reducing the difficulty of manual cleaning of the waste bin 1.

[0027] Specifically, the cleaning device 13 has at least a first nozzle 131 and a second nozzle 132. The first nozzle 131 and the second nozzle 132 are located on opposite sides of the inlet 110, and the spraying directions of the first nozzle 131 and the second nozzle 132 are opposite. That is, the inlet 110 is formed on the upper shell 11, and the first nozzle 131 and the second nozzle 132 are arranged around the inlet 110 and located on opposite sides of the inlet 110, such as... Figure 3 As shown (the thick line in the figure represents water flow, and the arrow indicates the direction of water flow), during the water spraying process, the first nozzle 131 and the second nozzle 132 spray water in opposite directions. That is, the first nozzle 131 and the second nozzle 132, located on both sides of the sewage inlet 110, spray water towards the center of the receiving cavity 100. The first nozzle 131 and the second nozzle 132 spray water diagonally to each other, and the sprayed water flow forms a ring vortex in the receiving cavity 100. At this time, the dirt will flow with the ring vortex, so that the dirt will not sink to the bottom during the cleaning process, but will be fully mixed with the sewage and can be smoothly discharged into the sewage tank 1 with the water flow.

[0028] This utility model provides a waste bin, including an upper shell, a lower shell, and a cleaning device. The upper shell has an inlet for waste to pass through. The lower shell is connected to the upper shell, and the upper and lower shells together form a cavity for containing waste. The cleaning device is mounted on the upper shell and is at least partially located within the cavity. The cleaning device is used to automatically clean the inside of the waste bin. The cleaning device has at least a first nozzle and a second nozzle; the first nozzle and the second nozzle are located on opposite sides of the inlet, and their spray directions are opposite. Thus, by installing a cleaning device on the upper shell of the waste bin, water can thoroughly clean the waste bin from top to bottom, achieving cleaning without manual operation, improving the automation level of the product, reducing the difficulty of operation for users, and providing a better user experience. Simultaneously, by positioning the first and second nozzles opposite each other and spraying water in opposite directions, a circular vortex is formed in the waste tank during the cleaning process. The waste rotates with the water flow and is discharged from the waste tank with the water, ensuring thorough removal and effective waste disposal. Furthermore, the cleaning device is mounted on the upper shell without occupying internal space of the receiving cavity, adding an automatic cleaning function without affecting the normal capacity of the waste tank—a clever and ingenious design.

[0029] In some embodiments, such as Figure 1 and Figure 2 As shown, the cleaning device 13 includes a water supply pipe 133. The water supply pipe 132 is mounted on the upper shell 11 or the lower shell 12 and connected to a water supply device. The water supply pipe 133 is used to supply water to at least the first nozzle 131 and the second nozzle 132, both of which are connected to the water supply pipe 133. The first nozzle 131 and the second nozzle 132 are both mounted on the upper shell 11, and at least the nozzles extend into the receiving cavity 100.

[0030] Understandably, the cleaning device 13 is provided with a first nozzle 131 and a second nozzle 132 at intervals. The first nozzle 131 and the second nozzle 132 are mounted on the upper shell 11 and extend into the receiving cavity 100 from the upper shell 11, so that at least the spray nozzles on them can spray water into the receiving cavity 100. The first nozzle 131 and the second nozzle 132 are both connected to a water supply pipe 133. The water supply pipe 133 can be mounted on the upper shell 11 or the lower shell 12, with one end connected to a water supply device and the other end extending to the target position where the first nozzle 131 and the second nozzle 132 are installed, and supplying water to the first nozzle 131 and the second nozzle 132 to complete the cleaning work normally. In addition, the water supply device can be a clean water pump, which delivers water with a certain pressure to the water supply pipe 133 to ensure the speed and impact force of the water flow in the first nozzle 131 and the second nozzle 132, thereby ensuring the cleaning effect of the cleaning device.

[0031] This embodiment of the invention delivers pressurized water to the first and second nozzles via a water supply pipe, ensuring the effective spraying of the first and second nozzles and allowing a ring-shaped vortex to form smoothly inside the receiving cavity. This prevents the cleaning device from malfunctioning and improves the cleaning effect. Simultaneously, the water supply pipe can be configured according to the positions of the first and second nozzles, further optimizing the structure of the cleaning device, reducing the space occupied by the cleaning device, and not affecting the normal storage of waste in the waste bin.

[0032] In some embodiments, such as Figure 2 As shown, the water supply pipe 133 is located outside the receiving cavity 100 and is installed on the upper shell 11 (see reference). Figure 1 The water supply pipe 133 is installed on the outer surface of the upper shell 11. The first nozzle 131 and the second nozzle 132 are connected to the water supply pipe 133 and extend through the upper shell 11 into the cavity 100, so that the water supply pipe 133 no longer occupies space in the cavity 100. At the same time, if the water supply pipe 133 is damaged, it can be repaired without disassembling the upper shell 11, which is convenient for operation.

[0033] This embodiment of the utility model optimizes the spatial structure of the waste tank by installing the water delivery pipe on the outer surface of the upper shell, placing it outside the receiving cavity and not occupying the internal space of the receiving cavity. At the same time, when the cleaning pipe needs maintenance, it can be repaired directly without disassembling the upper cover, reducing the difficulty of operation, simplifying the maintenance steps, and bringing convenience to users.

[0034] In some embodiments, such as Figure 2 As shown, the cleaning device 13 also includes a water spray pipe 134. The water spray pipe 134 is mounted on the upper housing 11 (see reference). Figure 1 The water spray pipe 134 is provided on the sludge tank 1 and extends along at least part of the contour path of the receiving cavity 100. It is connected to the water supply pipe 133 or the water supply device. The water spray pipe 134 has a plurality of spaced water outlets, each of which is located inside the receiving cavity 100, to rinse the side wall of the sludge tank 1.

[0035] Understandably, the cleaning device 13 also includes a water spray pipe 134, which extends along the contour of the receiving cavity 100 and is shaped to match the side wall of the waste bin 1. One end of the water spray pipe 134 can be connected to a water supply pipe 133, through which water is supplied to the water spray pipe 134. Multiple water outlets are spaced apart on the water spray pipe 134, located inside the receiving cavity 100. Water in the water spray pipe 134 is sprayed out from these multiple water outlets, such as... Figure 3As shown, the water spray from the outlet of the water spray pipe 134 has multiple directions, which can evenly rinse the side wall of the waste tank 1 and prevent residual dirt from remaining on the side wall of the waste tank. The other end of the water spray pipe 134 can also be connected to a water supply device, which can directly supply water to 134 without going through the water delivery pipe 132, thus improving the water supply efficiency.

[0036] This utility model embodiment, by setting a water spray pipe that extends along the contour of a portion of the receiving cavity and setting multiple water outlets on the water spray pipe, enables the water spray pipe to generate multiple streams of water to uniformly rinse the side walls of the waste tank, thereby improving the cleaning speed and effect of the cleaning device, ensuring the function of the cleaning device, and optimizing the working performance of the cleaning device.

[0037] In some embodiments, such as Figure 1 and 2 As shown, the cleaning device 13 also includes a third nozzle 135. The third nozzle 135 is mounted on the upper housing 11 and communicates with the water supply pipe 133. The third nozzle 135 is located between the first nozzle 131 and the second nozzle 132. The third nozzle 135 faces a different sidewall than those being rinsed by the various water outlets. Understandably, the cleaning device 13 also includes a third nozzle 135, which is located between the first nozzle 131 and the second nozzle 132 and communicates with the water supply pipe 133. The water supply pipe 133 supplies water to the third nozzle 135, and the spray direction of the third nozzle 135 is as follows... Figure 3 As shown, the side walls that cannot be rinsed by the water outlet on the water spray pipe 134 can be cleaned by the third spray head 135, which prevents the cleaning device 13 from missing any parts and improves the comprehensiveness of the cleaning.

[0038] Additionally, it should be noted that the water spray pipe 134 can be located inside or outside the receiving cavity 100, as long as the water outlet is located inside the receiving cavity and can flow smoothly. No further restrictions are imposed here. When there are certain requirements for the appearance of the waste tank 1, the water spray pipe 134 can be located inside the receiving cavity 100, which can improve the convenience of arranging the various water outlets on the water spray pipe 134.

[0039] This embodiment of the invention provides a third nozzle, oriented differently from the other nozzles, to rinse the sidewalls that cannot be cleaned by the nozzles and water pipes. This prevents the cleaning device from missing any areas during the cleaning process, thus ensuring the cleaning effect of the device and improving the self-cleaning efficiency of the product.

[0040] In some embodiments, such as Figure 1 and Figure 2As shown, the waste tank 1 also includes a vent 14. The vent 14 is used to connect the receiving cavity 100 with the outside atmosphere, and the vent 100 is located on the upper shell 11. Understandably, during the process of wastewater entering and exiting the receiving cavity 100, a pressure difference will be generated between the air pressure inside the receiving cavity 100 and the outside atmosphere. When the pressure difference is too large, the entry and exit of wastewater will be restricted, making it difficult to enter and exit smoothly, which will affect the normal operation of the waste tank 1. Therefore, it is necessary to provide a vent 14 on the waste tank 1 so that the receiving cavity 100 is connected to the outside atmosphere through the vent 14, thereby maintaining the pressure balance in the receiving cavity 100 and improving the smoothness of wastewater entry and exit.

[0041] Specifically, the vent 14 is located in the spray direction of the third nozzle 135. In other words, by setting the vent 14 in the spray direction of the third nozzle 135, the vent 135 can be cleaned simultaneously when the third nozzle 135 sprays water, preventing the vent 14 from becoming clogged.

[0042] This embodiment of the invention provides an exhaust vent on the waste tank, maintaining communication between the receiving cavity and the atmosphere, thus preserving the air pressure balance within the cavity. This allows for smoother flow of wastewater into and out of the waste tank, improving its operational efficiency. Simultaneously, the exhaust vent is positioned in the spray direction of the third nozzle, enabling the nozzle to clean the vent as well, ensuring its unobstructed flow and preventing vent malfunction that could affect the normal operation of the waste tank.

[0043] In some embodiments, such as Figure 2 As shown, the diameter of the water supply pipe 133 is smaller than the diameter of the spray pipe 134. That is, under the same inlet water pressure provided by the water supply device, the water pressure inside the water supply pipe 133 is greater than the water pressure inside the spray pipe 134. At this time, high-pressure water flow can be generated in the first nozzle 131 and the second nozzle 132 connected to the water supply pipe 133. Under the action of the two high-pressure water flow streams, a ring-shaped vortex can be quickly formed inside the receiving cavity 100, causing the dirt to rotate with the water flow and mix thoroughly with the sewage. Similarly, a high-pressure water flow will also be formed in the third nozzle 135. This high-pressure water flow impacts the sidewall of the dirt tank 1, allowing the dirt attached to the sidewall to be quickly cleaned. The spray pipe 134, with its larger diameter, has a relatively smaller impact force from the water outlet, only assisting in the flushing work of the nozzles. Furthermore, since the spray pipe 134 has multiple outlets, the pressure inside the spray pipe 134 is dispersed, requiring a reasonable distribution of the water pressure provided by the water supply device.

[0044] This embodiment of the invention uses a smaller diameter water supply pipe, enabling the first and second nozzles to generate high-pressure water jets. The impact of this high-pressure water jets quickly removes dirt and simultaneously creates a circular vortex, improving the cleaning device's efficiency and optimizing product performance. At the same time, a larger diameter water pipe reduces water pressure within the pipe, allowing for a more efficient distribution of water pressure within the supply device. This ensures the cleaning device can perform its cleaning tasks smoothly even under pressure constraints, providing a better user experience.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the waste bin 1 also includes a mesh cover 15. The mesh cover 15 is disposed within the receiving cavity 100 and located below the waste inlet 110. The mesh cover 15 is used at least to filter waste entering the receiving cavity 100. The mesh cover 15 is connected to the upper shell 11 and / or the lower shell 12. Understandably, the waste bin 1 also has a mesh cover 15 at the waste inlet 110, located inside the receiving cavity 100. After passing through the waste inlet 110, waste collects inside the mesh cover 15 and is filtered by the mesh cover 15 before entering the receiving cavity 100. This limits the size of the waste entering the receiving cavity 100 and prevents blockage during waste discharge. Furthermore, the mesh cover 15 can be connected to the upper shell 11 and / or the lower shell 12 to ensure the stability of the mesh cover 15 installation.

[0046] This utility model embodiment features a mesh cover at the sewage inlet, allowing sewage to pass through the mesh cover before entering the receiving cavity. This prevents large-sized sewage from entering the receiving cavity, making the sewage bin less prone to clogging during sewage discharge. Consequently, users do not need to manually unclog the sewage bin, optimizing its performance and providing a better user experience.

[0047] In some embodiments, such as Figure 1 and Figure 2 As shown, the waste tank 1 also includes a sewage pump 16. The sewage pump 16 is located at the bottom of the receiving cavity 100 and is used to pump out the waste from the receiving cavity 100. Understandably, the sewage pump 16 is located at the bottom of the receiving cavity 100 and below the mesh cover 15. One end of the sewage pipe 13 is connected to the sewage pump 16, and the other end extends out of the waste tank 10. After being filtered by the mesh cover 15, the waste accumulates at the bottom of the receiving cavity 100 under gravity. At this time, the sewage pump 16 located at the bottom of the receiving cavity 100 is activated, sucking the waste into the sewage pipe and discharging it from the receiving cavity 100, thereby quickly emptying the waste.

[0048] This embodiment of the utility model places the sewage pump at the bottom of the receiving cavity, which meets the sewage discharge needs of the sewage tank without occupying the external space of the sewage tank, optimizes the internal structure of the sewage tank, improves the space utilization of the sewage tank, and at the same time, the sewage pump placed at the bottom of the receiving cavity can quickly and thoroughly drain the sewage, improve the sewage discharge efficiency of the sewage tank, and give users a good user experience.

[0049] This utility model embodiment also provides a mobile nursing robot, including a body and a waste bin 1 as described in any of the above claims, the waste bin 1 being disposed inside the body. Specifically, the body can serve as the main shell component of the mobile nursing robot, with internal installation space for mounting the waste bin 1 and other necessary components. Furthermore, casters can be provided on the body to enable the overall movement of the mobile nursing robot.

[0050] Understandably, mobile care robots are typically used to assist the elderly and people with limited mobility with defecation. After defecation, the user flushes the excrement and toilet paper with clean water from the toilet bowl into the receiving cavity 100 (see...). Figure 1 In the process, once the waste in the receiving cavity 100 is full, the mobile nursing robot will automatically move to the toilet to drain the excrement from the receiving cavity 100 and clean the waste tank 1.

[0051] Specifically, such as Figure 1 and Figure 2 As shown, during the cleaning process of the waste tank 1, the waste tank 1 first empties the waste in the receiving cavity 100. However, the waste in the waste tank 1 cannot be completely emptied at once, and there will be residual waste. At this time, the cleaning device 13 in the waste tank 1 is activated. The high-pressure water flow from the first nozzle 131 and the second nozzle 132 forms a ring vortex in the receiving cavity 100, stirring the remaining waste and mixing it with the water flow. At the same time, the high-pressure water flow from the third nozzle 135 and the water spray pipe 134 impact the side wall to prevent waste from adhering to the side wall. After the rinsing is completed, all the waste is discharged with the water flow, thereby achieving a thorough cleaning of the waste tank. Moreover, the above cleaning process does not require manual operation by the user.

[0052] This utility model embodiment provides a mobile nursing robot. By improving the waste bin, the waste bin can be automatically cleaned by a cleaning device after the waste is discharged, which improves the automation of the product, reduces the difficulty of user operation, and brings a good user experience.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste bin, characterized in that, The waste bin includes: The upper shell has an inlet for waste to pass through; The lower shell is connected to the upper shell, and the upper shell and the lower shell together form a cavity for containing dirt; A cleaning device, at least partially mounted on the upper shell and at least partially located in the receiving cavity, is used to automatically clean the inside of the waste tank; The cleaning device has at least a first nozzle and a second nozzle; the first nozzle and the second nozzle are located on opposite sides of the inlet, and the spraying directions of the first nozzle and the second nozzle are opposite.

2. The waste bin according to claim 1, characterized in that, The cleaning device includes: A water supply pipe is installed on the upper shell or the lower shell and connected to a water supply device. The water supply pipe is used to supply water to at least the first nozzle and the second nozzle, and both the first nozzle and the second nozzle are connected to the water supply pipe. Both the first nozzle and the second nozzle are mounted on the upper shell, and at least the spray nozzle extends into the receiving cavity.

3. The waste bin according to claim 2, characterized in that, The water delivery pipe is located outside the receiving cavity and is installed on the outer surface of the upper shell.

4. The waste bin according to claim 2, characterized in that, The cleaning device also includes: A water spray pipe is mounted on the upper shell and extends along at least a portion of the contour path of the receiving cavity; the water spray pipe is connected to the water delivery pipe or the water supply device. The water spray pipe has multiple spaced-apart water outlets, each of which is located inside the receiving cavity, to rinse the side wall of the waste tank.

5. The waste bin according to claim 4, characterized in that, The cleaning device also includes: The third nozzle is installed on the upper shell and connected to the water supply pipe. The third nozzle is located between the first nozzle and the second nozzle. The third nozzle is oriented towards a different sidewall than the one being rinsed by each of the water outlets.

6. The waste bin according to claim 5, characterized in that, The waste bin also includes: An exhaust port is provided to connect the receiving cavity to the outside atmosphere, and the exhaust port is located on the upper shell. The exhaust port is located in the spray direction of the third nozzle.

7. The waste bin according to claim 4, characterized in that, The diameter of the water delivery pipe is smaller than the diameter of the spray pipe.

8. The waste bin according to any one of claims 1-7, characterized in that, The waste bin also includes: A mesh cover is disposed within the receiving cavity and located below the inlet, the mesh cover being used at least to filter contaminants entering the receiving cavity; The mesh cover is connected to the upper shell and / or the lower shell.

9. The waste bin according to claim 1, characterized in that, The waste bin also includes: A sewage pump is located at the bottom of the receiving cavity, and the sewage pump is used to pump out the sewage in the receiving cavity.

10. A mobile nursing robot, characterized in that, The mobile nursing robot includes: a body and a waste bin as described in any one of claims 1-9, wherein the waste bin is disposed inside the body.

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