Sewage recovery device for sweeper
By using a split collection box design and physical separation of the filter, the problem of incomplete cleaning and secondary pollution caused by the mixing of impurities and sewage in the robot vacuum cleaner is solved, achieving efficient separation of solid and liquid waste and cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAIXING TECH (SHENZHEN) CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-07
AI Technical Summary
In existing robotic vacuum cleaners, when impurities mix with sewage, the less dense impurities tend to float to the surface of the sewage, resulting in incomplete cleaning. They may flow back into the cleaning area, causing secondary pollution, and may also adhere to the cleaning brushes or blower nozzles, reducing cleaning efficiency. Furthermore, long-term accumulation can lead to component wear or odor and bacterial growth.
The system adopts a split collection box design, separating the impurity collection section and the sewage collection section. A filter screen is installed at the bottom of the impurity collection section, and the physical separation of solid and liquid waste is achieved through the inclined channel and the filter screen. The sewage collection section is set up independently, allowing for separate cleaning and avoiding the mixing of impurities and sewage.
It achieves efficient separation of solid and liquid waste, prevents odor generation and bacterial growth, ensures cleaning efficiency, avoids backflow of impurities and secondary pollution, and simplifies the maintenance process.
Smart Images

Figure CN224461640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sweeping robot technology, and in particular to a wastewater recycling device for sweeping robots. Background Technology
[0002] With the rapid development of smart home technology, robotic vacuum cleaners have been widely used in cleaning operations in homes and commercial settings. Existing robotic vacuum cleaners are typically equipped with a collection box to temporarily store impurities (such as dust, hair, and particles) sucked in during the sweeping process, as well as wastewater generated by the mopping function. Their working principle involves using negative pressure generated by a fan to draw impurities and wastewater into the collection box through the inlet, achieving centralized processing of the waste.
[0003] However, existing technologies have the following drawbacks: After impurities mix with wastewater in the collection box, smaller impurities (such as paper scraps and hair) tend to float to the surface of the wastewater. When the robot moves or tilts, the floating impurities may flow back into the cleaning area from the inlet with the water flow, resulting in incomplete cleaning and even secondary pollution. The floating impurities may also adhere to the cleaning brushes (such as roller brushes and side brushes) or the blower inlet, hindering the normal rotation of the brushes, reducing cleaning efficiency, and long-term accumulation may also cause component wear or malfunction. At the same time, if impurities and wastewater are mixed for too long, they will produce odors and breed bacteria.
[0004] Therefore, a collection device capable of efficiently separating solid and liquid waste is needed. Utility Model Content
[0005] In order to solve the above-mentioned technical problems, this utility model provides a wastewater recycling device for sweeping machines.
[0006] The technical solution of this utility model is implemented as follows:
[0007] A wastewater recycling device for a sweeper includes a sweeper body and a collection box. The collection box has a wastewater inlet on one side, and the side with the wastewater inlet is detachably connected to the side of the sweeper body. The collection box includes an impurity collection section and a wastewater collection section, and the wastewater collection section is detachably disposed below the impurity collection section.
[0008] Preferably, the sewage inlet and the impurity collection section are connected by an inclined channel, the lower surface of the impurity collection section is provided with a filter screen, and the upper end of the sewage collection section near the filter screen is provided with an opening.
[0009] Preferably, the sweeper body includes a shell, and a cleaning box for cleaning impurities is detachably provided on the lower surface of the shell. The cleaning box includes a cleaning brush and a suction assembly. The cleaning brush is driven by a motor and is located on one side of the inlet. The suction assembly is located at the inlet.
[0010] Preferably, the lower surface of the housing is provided with a traveling wheel and a swivel wheel, and the lower surface of the housing is rotatably provided with a brush for assisting cleaning.
[0011] Preferably, a switch button is provided on the upper surface of the housing, and the switch button is electrically connected to the internal power supply module.
[0012] Preferably, a collision sensor is provided on the side of the housing, and the collision sensor module is electrically connected to the internal controller.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This utility model provides a wastewater recycling device for a sweeper. The device is equipped with a collection box that can be divided into an impurity collection section and a wastewater collection section. A filter screen is installed at the bottom of the impurity collection section to separate solid and liquid waste cleaned by the sweeper. The separated wastewater enters the wastewater collection section. When there is too much wastewater collected, the wastewater collection section can be disassembled separately to clean the wastewater. Separating wastewater from impurities can also effectively prevent the generation of odors and the growth of bacteria. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a wastewater recycling device for a sweeper according to the present invention;
[0016] Figure 2 This is a first structural schematic diagram of a wastewater recycling device for a sweeper according to the present invention;
[0017] Figure 3 This is an exploded view of a wastewater recycling device for a sweeper according to the present invention;
[0018] Figure 4 This is a schematic diagram of the structure of the collection box of this utility model;
[0019] Figure 5 This is a schematic diagram of the internal structure of the collection box of this utility model.
[0020] 1. Sweeper body; 2. Collection box; 3. Sewage inlet; 4. Impurity collection section; 401. Filter screen; 5. Sewage collection section; 6. Inclined channel; 7. Outer shell; 8. Cleaning box; 801. Cleaning brush; 9. Wheels; 10. Casters; 11. Brush; 12. Switch button; 13. Collision sensor. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1-5 This utility model is a wastewater recycling device for a sweeper, including a sweeper body 1 and a collection box 2. The collection box 2 has a sewage inlet 3 on one side, and the side where the sewage inlet 3 is located is detachably connected to the side of the sweeper body 1. The collection box 2 includes an impurity collection part 4 and a sewage collection part 5, and the sewage collection part 5 is detachably disposed below the impurity collection part 4.
[0023] Specifically, the collection box 2 adopts a split structure, achieving physical separation of solid and liquid waste through an upper and lower layer design; the sewage inlet 3 adopts a side opening structure, with the opening position aligned with the waste conveying path of the sweeper body 1, and is detachably connected through a snap-fit or sliding rail structure for easy disassembly and maintenance; the impurity collection section 4 is used to intercept solid waste, specifically adopting a cavity structure with a filter screen 401, the pore size of which is smaller than the size of common solid impurities; the sewage collection section 5 is an independent container for storing liquid, adopting a sealed drawer structure, and receiving the liquid filtered from the upper layer through its vertical positional relationship.
[0024] In this embodiment, when cleaning is required, the collection box 2 can be completely removed from the sweeper body 1 to handle solid waste and liquid waste separately; the detachable design of the impurity collection part 4 and the sewage collection part 5 allows for separate cleaning or replacement to avoid cross-contamination.
[0025] Furthermore, the sewage inlet 3 and the impurity collection section 4 are connected by an inclined channel 6. A filter screen 401 is provided on the lower surface of the impurity collection section 4, and an opening is provided at the upper end of the sewage collection section 5 near the filter screen 401.
[0026] In this embodiment, when the mixed waste generated during the cleaning process enters the collection box 2 through the inlet 3, the slope design of the inclined channel 6 allows the impurities to quickly slide into the impurity collection section 4 under the action of gravity, preventing backflow of impurities due to robot movement or tilting. Solid impurities are trapped in the upper area by the filter screen 401 of the impurity collection section 4, while liquids naturally seep down to the sewage collection section 5 through the pores of the filter screen 401. Since the sewage collection section 5 is independently set below the impurity collection section 4, it forms a vertical separation channel, effectively preventing the liquid and solids from remixing. This structure, through a combination of spatial layout and physical filtration, ensures that impurities and sewage are separated in real time during the collection process, avoiding impurities floating or secondary pollution.
[0027] Furthermore, the sweeper body 1 includes a housing 7, and a cleaning box 8 for cleaning impurities is detachably provided on the lower surface of the housing 7. The cleaning box 8 includes a cleaning brush 801 and a suction assembly. The cleaning brush 801 is driven by a motor and is located on one side of the inlet 3. The suction assembly is located at the inlet 3.
[0028] In this embodiment, when the motor drives the cleaning brush 801 to rotate at a set speed, the bristles contact the ground to generate a sweeping force, pushing the impurities attached to the ground toward the inlet 3. The suction component generates a negative pressure area at the inlet 3, so that the impurities and sewage pushed to this area are quickly sucked into the collection box 2. The cleaning brush 801 and the suction component form a spatial linkage, and the sweeping and suction actions are synchronized in time and space, preventing impurities from lingering outside the inlet 3. The overall detachable feature of the cleaning box 8 allows the cleaning brush 801 and the suction component to be removed separately for cleaning or replacement during maintenance, without disassembling other parts of the outer shell 7.
[0029] Furthermore, a traveling wheel 9 and a universal wheel 10 are provided through the lower surface of the outer shell 7, and a brush 11 for assisting cleaning is rotatably provided on the lower surface of the outer shell 7.
[0030] In this embodiment, the walking wheels 9 provide active driving force to make the sweeper move in a straight line, and the omnidirectional wheels 10 change the direction of travel by rotating freely when turning. The two work together to enable the sweeper to complete the turning action in place in narrow spaces. The auxiliary cleaning brushes 11 are installed in the bottom edge area of the outer casing 7 and are driven by an independent motor to rotate clockwise or counterclockwise to sweep dust particles in the gaps of the wall into the main cleaning path. For example, the height difference between the walking wheels 9 and the omnidirectional wheels 10 is set to 3-5 mm to keep the sweeper stable when crossing the ground seams and avoid sudden changes in the contact pressure between the brushes 11 and the ground due to bumps.
[0031] Furthermore, a switch button 12 is provided on the upper surface of the housing 7, and the switch button 12 is electrically connected to the internal power supply module; a collision sensor 13 is provided on the side of the housing 7, and the collision sensor 13 module is electrically connected to the internal controller.
[0032] The working principle of the wastewater recycling device for a sweeper provided by this utility model is as follows:
[0033] When in use, press the switch button 12 to start the sweeper body 1 to begin sweeping. During the sweeping operation, the cleaning brush 801 carries impurities and sewage into the collection box 2. The filter screen 401 at the bottom of the impurity collection section 4 separates solid impurities from sewage. Sewage enters the sewage collection section 5 under the action of gravity. When the sewage collection section is full, the sewage collection section 5 can be disassembled separately to clean the sewage. Then, the impurity collection section 4 can be disassembled to clean the impurities.
[0034] This utility model provides a wastewater recycling device for a sweeper. The device is equipped with a collection box 2 that can be divided into an impurity collection section 4 and a wastewater collection section 5. A filter screen 401 is installed at the bottom of the impurity collection section 4 to separate solid and liquid waste cleaned by the sweeper. The separated wastewater enters the wastewater collection section 5. When there is too much wastewater collected, the wastewater collection section 5 can be disassembled separately to clean the wastewater. Separating wastewater from impurities can also effectively prevent the generation of odors and the growth of bacteria.
[0035] 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. Without further limitation, 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 said element.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A wastewater recycling device for a sweeper, characterized in that: The sweeper body (1) is provided with a collection box (2) on one side. The collection box (2) has a sewage inlet (3) on one side. The side where the sewage inlet (3) is located is detachably connected to the side of the sweeper body (1). The collection box (2) includes a debris collection part (4) and a sewage collection part (5). The sewage collection part (5) is detachably disposed below the debris collection part (4).
2. The wastewater recycling device for a sweeper according to claim 1, characterized in that: The sewage inlet (3) and the impurity collection section (4) are connected by an inclined channel (6). A filter screen (401) is provided on the lower surface of the impurity collection section (4). An opening is provided at the upper end of the sewage collection section (5) near the filter screen (401).
3. The wastewater recycling device for a sweeper according to claim 1, characterized in that: The sweeper body (1) includes a shell (7), and a cleaning box (8) for cleaning impurities is detachably provided on the lower surface of the shell (7). The cleaning box (8) includes a cleaning brush (801) and a suction assembly. The cleaning brush (801) is driven by a motor and is located on one side of the inlet (3). The suction assembly is located at the inlet (3).
4. The wastewater recycling device for a sweeper according to claim 3, characterized in that: The lower surface of the outer shell (7) is provided with a traveling wheel (9) and a universal wheel (10), and a brush (11) for auxiliary cleaning is rotatably provided on the lower surface of the outer shell (7).
5. A wastewater recycling device for a sweeper according to claim 3, characterized in that: The upper surface of the outer casing (7) is provided with a switch button (12), which is electrically connected to the internal power supply module.
6. A wastewater recycling device for a sweeper according to claim 3, characterized in that: The outer casing (7) is provided with a collision sensor (13) on its side, and the collision sensor (13) module is electrically connected to the internal controller.