Cleaning device, base, and cleaning system

Abstract

Embodiments of the present application provide a cleaning device, a base, and a cleaning system. The cleaning device comprises a floor brush, a liquid storage tank, a dry collection tank and a main motor; a suction port is formed on the floor brush; the liquid storage tank is arranged above the floor brush; the dry collection tank is communicated with the upper portion of the liquid storage tank and is located on the rear side of the liquid storage tank; the main motor is arranged on the floor brush and is located below the dry collection tank; suction air flows generated when the main motor works enter from the suction port, sequentially pass through the liquid storage tank and the dry collection tank, and then are discharged through an air outlet channel; and the dry collection tank is communicated with the liquid storage tank in a front-back direction and is communicated with the main motor in an up-down direction. According to the embodiments of the present application, the dry collection tank is additionally added to collect solid dirt, dust, and floating fluff, thereby reducing the probability of blockage caused by solid dirt. The dry collection tank and the main motor are located on the rear side of the liquid storage tank, and the main motor is located below the dry collection tank, so that the structure is more compact; and the dry collection tank is communicated with the liquid storage tank in the front-back direction and is communicated with the main motor in the up-down direction, so that the circulation of the suction air flows is smooth.

Description

Cleaning equipment, bases and cleaning systems

[0001] Cross-references

[0002] This application cites the Chinese patent applications in the table below, which are incorporated herein by reference in their entirety. Technical Field

[0003] The present application relates to the technical field of cleaning appliances, and in particular to cleaning equipment, a base, and a cleaning system. Background Art

[0004] With the development of social productivity, people's living standards have also improved. With material foundations guaranteed, people have begun to use various tools to reduce labor and improve their quality of life. Household cleaning equipment has emerged as the times require. For example, carpet cleaning equipment, floor cleaning machines, etc.

[0005] Currently, water-based household cleaning equipment collects both wet and solid waste into the same recovery chamber. The adsorbed airflow often carries a certain amount of solid particles as it leaves the recovery chamber. These particles are intercepted by the filter element within the recovery chamber. Excessive solid particles adsorbed on the filter element can clog the airflow, leading to a loss of suction and poor cleaning performance. Furthermore, if the roller brush on the cleaning equipment's floor brush becomes entangled with dirt, this can also affect the cleaning performance of the cleaning equipment.

[0006] Application Contents

[0007] In view of the above problems, the embodiments of the present application provide a cleaning device, a base, and a cleaning system to improve the cleaning effect of the cleaning device.

[0008] In a first embodiment of the present application, a cleaning device is provided. The cleaning device comprises: a floor brush provided with a suction nozzle; a liquid storage tank disposed above the floor brush; a dry recovery tank connected to the upper portion of the liquid storage tank and located at the rear of the liquid storage tank; and a main motor disposed on the floor brush and located below the dry recovery tank.

[0009] Among them, when the main motor is working, the suction airflow generated enters from the suction nozzle and passes through the liquid storage barrel and the dry recovery barrel in sequence, and is discharged through the air outlet duct of the main motor. The dry recovery barrel is connected with the liquid storage barrel in the front-to-back direction and is connected with the main motor in the up-down direction.

[0010] In a second embodiment of the present application, a base is provided for placing the cleaning device provided in the above embodiment. The base includes a base body;

[0011] The base body is provided with a sunken groove, and the top of the groove wall of the sunken groove upwardly supports the floor brush of the cleaning device;

[0012] When the cleaning device is placed on the base, the area from the suction nozzle to the air outlet duct at the bottom of the floor brush is above the sunken groove, and there is a gap between the roller brush on the floor brush and the bottom of the sunken groove so that the roller brush is in a suspended state.

[0013] In a third embodiment of the present application, a cleaning system is provided, comprising: a cleaning device and a base. The cleaning device comprises a floor brush, the floor brush comprising a suction nozzle located at the front side thereof and a roller brush located at the rear side of the suction nozzle, the floor brush being provided with a main motor and an air outlet duct connected to the main motor, the floor brush being provided with an air outlet connected to the air outlet duct of the main motor at its bottom, and a heating component located within the air outlet duct; the base comprising a base body; the base body being provided with a sunken groove supporting at least a portion of the bottom area of ​​the floor brush; when the cleaning device is placed on the base, the roller brush, the suction nozzle, and the air outlet are located within the space formed by the sunken groove, and a gap exists between the roller brush on the floor brush and the bottom of the sunken groove, so that the roller brush is suspended in the air.

[0014] The technical solution provided in the embodiment of the present application adds a dry recovery bucket to the cleaning equipment to collect solid dirt and dust, thereby reducing the risk of blockage; in addition, in the embodiment of the present application, the dry recovery bucket and the main motor are both arranged on the rear side of the liquid storage bucket, and the main motor is located below the dry recovery bucket, which has a more compact structure; the dry recovery bucket is connected to the liquid storage bucket in the front-to-back direction and to the main motor in the up-down direction, and the suction airflow circulates smoothly, which helps to improve the cleaning effect of the cleaning equipment.

[0015] Another embodiment of the present application provides a technical solution for use with a cleaning device. A recessed groove is provided on the base of the base. When the cleaning device's floor brush is positioned on the base, the area from the suction nozzle to the air outlet duct at the bottom of the floor brush is located above the recessed groove. A gap exists between the roller brush on the floor brush and the bottom of the recessed groove (i.e., the roller brush is suspended in mid-air), facilitating self-cleaning and drying of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram of the appearance of a cleaning device provided in one embodiment of the present application;

[0017] FIG2 is a schematic diagram of the appearance of a cleaning device provided by an embodiment of the present application from a first perspective;

[0018] FIG3 is a schematic diagram of the appearance of a cleaning device provided by an embodiment of the present application from a second perspective;

[0019] FIG4 is a schematic diagram of a cleaning device provided by an embodiment of the present application in a working state;

[0020] FIG5 is a schematic diagram showing the positional relationship among the floor brush, the liquid storage bucket, the dry recovery bucket, and the main motor in the cleaning device provided in one embodiment of the present application;

[0021] FIG6 shows a schematic diagram of the internal structure of a floor brush in a cleaning device provided in an embodiment of the present application;

[0022] FIG7 shows a cross-sectional schematic diagram of a floor brush and a main motor in a cleaning device provided in an embodiment of the present application;

[0023] FIG8 is a schematic diagram of the appearance of a floor brush in a cleaning device provided in one embodiment of the present application;

[0024] FIG9 is a schematic structural diagram of a lower cover of a suction nozzle on a floor brush in a cleaning device provided in one embodiment of the present application;

[0025] FIG10 shows a schematic diagram of the internal structure of a floor brush provided in an embodiment of the present application;

[0026] FIG11 is a partial enlarged schematic diagram of FIG10;

[0027] FIG12 is a schematic diagram of the internal structure of the floor brush from a first viewing angle;

[0028] Figure 13 is a schematic structural diagram of the bottom of the floor brush;

[0029] FIG14 shows a schematic structural diagram of a cleaning device provided in an embodiment of the present application, provided with a power assist system;

[0030] FIG15 shows a cross-sectional view of the connection between the handle and the connecting rod;

[0031] FIG16 is an enlarged schematic diagram of FIG15;

[0032] FIG17 is an exploded schematic diagram of the structure shown in FIG15 ;

[0033] FIG18 is a schematic structural diagram of a strain device in a power-assist sensor;

[0034] FIG19 shows a schematic diagram of a power-assistance sensor implementation structure;

[0035] FIG20 shows a schematic diagram of the appearance of the connection between the handle and the connecting rod;

[0036] FIG21 shows an exploded schematic diagram of the structure shown in FIG20 ;

[0037] FIG22 is a schematic diagram showing a cleaning device provided by an embodiment of the present application, in which a liquid storage barrel has two liquid storage spaces;

[0038] FIG23 is a schematic diagram showing the upward convexity of the soft membrane structure in the liquid storage barrel;

[0039] FIG24 is a schematic diagram showing sewage entering the sewage storage space of the liquid storage barrel;

[0040] FIG25 is a schematic diagram showing the process of injecting clean water into the clean water storage space to cause the soft membrane structure to bulge;

[0041] FIG26 shows an exploded view of the liquid storage barrel from the front end perspective;

[0042] FIG27 shows an exploded view of the rear end of the liquid storage barrel;

[0043] FIG28 shows a schematic structural diagram of the barrel cover of the liquid storage barrel;

[0044] FIG29 shows a schematic structural diagram of the sewage storage space;

[0045] FIG30 shows a schematic diagram of the bottom structure of the sewage storage space;

[0046] FIG31 shows a schematic diagram of the rear end perspective of the liquid storage barrel;

[0047] FIG32 shows a schematic structural diagram of the bottom of the liquid storage barrel;

[0048] FIG33 shows a top view of the liquid storage barrel connected to the dry recovery barrel;

[0049] FIG34 shows a schematic structural diagram of a liquid storage tank connected to a dry recovery tank;

[0050] FIG35 is a schematic diagram showing an air hole provided in the sewage storage space for balancing the clean water storage space and the sewage storage space;

[0051] FIG36 is a schematic diagram showing a water circuit composed of a pump and a water spray device in a cleaning device provided in an embodiment of the present application;

[0052] FIG37 shows a schematic diagram of the appearance of the water spray device;

[0053] FIG38 shows a schematic cross-sectional view of the spraying device at the corresponding water inlet position;

[0054] FIG39 is a schematic diagram showing the gap between the upper shell and the lower shell of the water spray device;

[0055] FIG40 shows a schematic structural diagram of a water spray device mounted on a water spray bracket;

[0056] FIG41 is a schematic top view of the structure shown in FIG40 ;

[0057] FIG42 is a partial enlarged view of FIG41;

[0058] FIG43 shows a schematic diagram of the appearance of the base;

[0059] Figure 44 is a partial enlarged schematic diagram of Figure 43;

[0060] FIG45 shows a schematic diagram of the appearance of the base from another perspective;

[0061] FIG46 shows a schematic top view of the base;

[0062] FIG47 is a schematic cross-sectional view of the base;

[0063] FIG48 is a partial enlarged schematic diagram of FIG47;

[0064] Figure 49 is a schematic structural diagram of a collecting device;

[0065] FIG50 is an exploded schematic diagram of a partial structure of the base;

[0066] FIG51 is a schematic diagram of a cleaning tool;

[0067] Figure 52a is a cross-sectional view of a floor brush placed on a base;

[0068] Figure 52b is a partial enlarged view of Figure 52a;

[0069] FIG53 is a schematic diagram of the appearance of the cleaning system from a first viewing angle;

[0070] FIG54 is a schematic diagram of the appearance of the cleaning system from a second viewing angle;

[0071] Figure 55 is a schematic diagram of the corresponding structure after the liquid storage barrel of the cleaning equipment in the cleaning system is removed. DETAILED DESCRIPTION

[0072] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the drawings in the embodiments of the present application. In some features described in the specification, claims and the above-mentioned drawings of the present application, descriptions such as "first" and "second" are used to distinguish different sides, components, parts, modules, devices, etc., and do not represent a sequence, nor do they limit "first" and "second" to different types. In addition, the embodiments described below are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0073] One embodiment of the present application provides a cleaning device. As shown in Figures 1, 2, 3 and 4, the cleaning device includes: a floor brush 1, a liquid storage barrel 2, a dry recovery barrel 3 and a main motor 4. Among them, a suction nozzle 5 is provided on the floor brush 1. The liquid storage barrel 2 is arranged above the floor brush 1. The dry recovery barrel 3 is connected to the upper part of the liquid storage barrel 2 and is located at the rear side of the liquid storage barrel 2. The main motor 4 is arranged on the floor brush 1 and is located below the dry recovery barrel 3. The main motor 4 is located behind the liquid storage barrel 2 to avoid the liquid storage barrel 2 and the main motor 4 from overlapping in the up and down directions, resulting in the need to set an internally raised avoidance space at the bottom of the liquid storage barrel 2 for the main motor 4, so as to occupy the space inside the liquid storage barrel and form a dead angle area where the liquid cannot be used.

[0074] It should be added here that: in order to facilitate the description of up and down, left and rear, and front and back, coordinates are marked in Figures 1, 2, and 43. The "up and down" or "vertical" mentioned in this article is along the direction indicated by the Y-axis, the positive direction of the Y-axis (the direction indicated by the arrow) corresponds to up, and the negative direction of the Y-axis corresponds to down. "Front and back" is along the direction indicated by the X-axis, the positive direction of the X-axis (the direction indicated by the arrow) corresponds to the front, and the negative direction of the X-axis corresponds to the back. "Horizontal" or "left and right" is along the direction indicated by the Z-axis, the positive direction of the Z-axis (the direction indicated by the arrow) corresponds to the right, and the negative direction of the Z-axis corresponds to the left.

[0075] As shown in Figure 5 , when the main motor 4 is operating, the suction airflow generated enters through the suction nozzle 5, passes through the liquid storage tank 2 and the dry recovery tank 3, and is then discharged through the main motor 4's air outlet duct 6. The outlet of the air outlet duct 6 is located at the bottom of the floor brush 1 and faces the area to be cleaned. In the front-to-back direction, the air outlet duct 6 is located in front of the dry recovery tank 3. The dry recovery tank 3 is connected to the liquid storage tank 2 in the front-to-back direction, and to the main motor 4 in the top-to-bottom direction.

[0076] Most cleaning equipment currently available on the market only has a bucket for recycling dirty water, especially carpet cleaning machines used to clean carpets. They can only recycle dirty water on the ground, and when encountering solid matter, such as flying catkins or floating dust, the air inlet will be blocked. This embodiment adds a dry recovery bucket 3 to the cleaning equipment to collect solid dirt and dust flying catkins, thereby reducing the risk of blockage. In addition, in the embodiment of the present application, the dry recovery bucket 3 and the main motor 4 are both arranged on the rear side of the liquid storage barrel 2, and the main motor 4 is located below the dry recovery bucket 3. The structure is more compact and the circulation of the suction airflow is smoother, which helps to improve the cleaning effect of the cleaning equipment. The dry recovery bucket 3 is a detachable structure, and the floor brush is provided with a receiving chamber 103 for accommodating the dry recovery bucket 3. As shown in Figure 3, the receiving chamber 103 is located above the main motor 4, and the dry recovery bucket 3 can be installed to the receiving chamber 103 or pulled out from the receiving chamber 103 in the front-to-back direction. The dry recovery bin 3 is secured to the storage chamber 103 by an elastic locking device (not shown) disposed within the storage chamber 103 and engaging with a corresponding groove disposed on the bottom of the dry recovery bin 3. Once the dry recovery bin is in place, the elastic locking device extends and locks with the corresponding groove disposed on the dry recovery bin. Of course, the dry recovery bin 3 and the storage chamber 103 may also be secured by interference, and the method is not limited thereto.

[0077] 3 , the receiving chamber 103 may be a slot with both the rear side and the upper end open as shown in the figure. The wall of the receiving chamber 103 can be seen from the angle shown in FIG4 .

[0078] In addition, the cleaning device described in this embodiment may also include a heating assembly 7, as shown in Figures 5 and 7. The heating assembly 7 is positioned at the outlet of the air duct 6 and is used to heat the airflow discharged from the air duct 6 to generate a hot airflow directed toward the cleaning object. This hot airflow can dry the cleaning object (such as a carpet, etc.). As can be seen in Figure 5, with the structure provided in this embodiment, the main motor 4 is located below the dry recovery bucket 3. The main motor 4 is placed vertically, which increases the utilization rate of the hot air and facilitates the rapid cleaning and drying of the cleaning object (such as a carpet, etc.). Furthermore, the vertical placement of the motor optimizes and shortens the air duct travel, effectively utilizing the warm air to dry the carpet. Because the main motor 4 is placed vertically, the distance between the main motor 4 and the wall that houses it can be reduced, resulting in a smaller horizontal footprint for the main motor 4 and a more compact overall layout of the main motor 4, dry recovery bucket 3, and liquid storage bucket 2. As shown in Figures 5 and 7, the floor brush 1 is also equipped with a roller brush 8 and a roller 9. From the front to the rear of the floor brush 1, the suction nozzle 5, the roller brush 8, the heating assembly 7, and the roller 9 are arranged in sequence. This arrangement facilitates drying of the roller brush 8 during self-cleaning. Self-cleaning will be discussed in detail below. From top to bottom, the dry recovery bin 3, the main motor 4, and the roller 9 are arranged in order.

[0079] Figure 6 shows the internal structure of the floor brush 1 after the liquid reservoir 2, the floor brush upper cover 10, and the nozzle lower cover 11 are removed from the cleaning device shown in Figure 2. As can be seen from Figures 6 and 10, the floor brush 1 is also equipped with a roller brush motor 12, a pump 13, rollers 9, a water spray device 14 (shown in Figure 12), and other components. The main motor 4 can be located between the two rollers 9. The cleaning device also includes a body 15, which is connected to the handle 31 via a connecting rod 16. With the liquid reservoir 2 removed, Figure 6 shows that the floor brush 1 is also equipped with an intermediate member 127. This intermediate member 127 is located between the liquid reservoir 2 and the dry recovery bin 3. The intermediate member 127 is provided with a first connecting port 68. The receiving chamber 103 is provided with an interface corresponding to the first connecting port 68. A connector passes through the first connecting port 68 and the interface. This connector is made of soft rubber and has a passage connecting the liquid reservoir 2 and the dry recovery bin 3. The rear end of the connector connects to the inlet of the dry recovery bucket 3, while its front end connects to a corresponding port on the liquid storage bucket 2. The dry recovery bucket 3 is connected to the liquid storage bucket 2 via the connector. Figure 4 shows the cleaning device in operation. The user holds the handle 31, tilts the main body 15 and connecting rod 16 backward, and uses the handle 31 to push the floor brush 1 forward. The liquid storage bucket 2, dry recovery bucket 3, and main motor 4 are mounted on the floor brush 1 and move with it.

[0080] The body 15 has two connecting arms 104, which are connected at their tops to form an inverted U-shape. When not in use, the dry recovery bucket 3 is located within the space formed by the two connecting arms 104. When viewed from the front to the back, the liquid storage tank 2 obscures the dry recovery bucket 3. The two connecting arms 104 are located on either side of the dry recovery bucket. The tops of the two connecting arms are connected to form an inverted U-shaped space. When viewed from the back to the front, the dry recovery bucket 3 is located below the top of the inverted U-shaped structure, between the two connecting arms 104.

[0081] As shown in Figure 8 , the floor brush 1 is further provided with two mounting holes 105 located on either side of the main motor 4. The ends of the two connecting arms 104 of the body 15 are respectively mounted in the two corresponding mounting holes 105 , and the two connecting arms 104 can rotate relative to the floor brush 1. As shown in Figures 1 to 3 , the body 15 is in an upright position; as shown in Figure 4 , the body 15 is tilted backward relative to the floor brush, and the user can operate the cleaning device by holding the handle 31 on the body 15 .

[0082] As shown in FIG7 , a uniform wind plate, i.e., a porous plate 17, is provided in the air outlet duct 6. Two porous plates 17 are provided in the air outlet duct 6. One porous plate 17 is provided in the air outlet duct 6 near the main motor 4, and the other is provided near the heating assembly 7. The porous plate 17 provided near the main motor 4 is vertically provided in the air outlet duct 6, and the other porous plate 17 provided near the air outlet is horizontally provided. The two porous plates 17 are provided perpendicular to each other. The airflow entering the air outlet duct 6 is dispersed after passing through the holes on the porous plate 17, or in other words, the airflow in the air duct is adjusted by adjusting the air inlet and outlet through a plurality of through holes, thereby adjusting the airflow. The airflow then flows to the heating assembly 7. The airflow coming out of the independent motor 4 is spiral wind, which will flow along one side of the air outlet channel and cannot be evenly diffused in the air outlet channel. The spiral wind can be broken up by the through-hole plate to form a uniform airflow, so that the airflow blowing to the heating component 7 is more uniform, and the hot air flow passing through the heating component 7 and emitted from the air outlet is more uniform, so that the area to be dried under the floor brush is evenly dried, which helps to improve the drying efficiency.

[0083] Furthermore, the main motor 4 is a brushed motor, which also includes a cooling fan 18 inside and an impeller outside. As shown in Figure 7, the main motor 4 includes two chambers: an inner chamber 22 and an outer chamber 23. A power assembly 19 is located in the inner chamber 22, and a cold air intake 20 is located at the bottom of the inner chamber 22. As shown in Figure 3, a cooling air intake duct 106 is located on the rear side of the floor brush 1, between the two rollers 9. The cooling air intake duct 106 is connected to the cold air intake 20. In addition to the cooling air intake duct 106, the floor brush 1 also has a cooling air intake duct on each side of its front end. A cooling fan 18 is located at the top of the inner chamber 22. A cooling channel is located between the inner chamber 22 and the outer chamber 23; the exhaust port of the cooling channel is located behind the cold air intake 20. As shown in Figure 7, the cooling air outlet can be located at the bottom of the floor brush 1, and the air discharged from the cooling air outlet is discharged through the cooling air outlet 107 at the bottom. The power shaft of the power component 19 passes through the top cavity wall of the inner cavity 22 and the top cavity wall of the outer cavity 23. An impeller 21 is provided at the end of the power shaft. The power component 19 outputs rotational power to drive the impeller 21 to rotate and generate suction airflow. The cooling fan 18 works to inhale external air from the cold air inlet 20 at the bottom to the top of the inner cavity 22, then enters the heat dissipation channel between the inner and outer cavities 22 and 23 and descends to the bottom, and is discharged from the heat dissipation outlet 107 provided at the bottom of the floor brush to dissipate heat for the main motor 4. The main motor 4 is housed in the motor cavity, and a channel connected to the air outlet duct 6 is formed between the main motor 4 and the inner wall of the motor cavity, and the channel is separated from the heat dissipation channel between the inner and outer cavities 22 and 23 and is not connected to each other.

[0084] The cleaning device described in this embodiment also includes an absolute pressure sensor 24 and a control device. The control device is not explicitly shown in the accompanying drawings. The control device can be set on the floor brush 1 or on the body 15, and this embodiment does not specifically limit this. Referring to Figures 5 and 7, the absolute pressure sensor 24 is set between the dry recovery bucket 3 and the main motor 4. The control device can be set on the floor brush 1 and electrically connected to the absolute pressure sensor 24; the control device is used to obtain the first data collected by the absolute pressure sensor 24 when the cleaning device is powered on but the main motor 4 is not started; determine the blockage judgment reference value corresponding to the first data; after the main motor 4 is started, if the second data collected by the absolute pressure sensor 24 is lower than or equal to the blockage judgment reference value, it is determined that the airflow duct is blocked. The dry recovery bucket 3, liquid storage bucket 2 and suction nozzle 5 in the airflow duct path are detachable structures. When a blockage occurs, the user can disassemble the above three for inspection and cleaning to achieve troubleshooting.

[0085] Specifically, as shown in Figure 5, the suction air inlet of the main motor 4 (i.e., the port corresponding to the impeller 21) is connected to the air outlet of the dry recovery bucket 3. A sealing device may be provided between the main motor 4 and the dry recovery bucket 3. More specifically, in the structure shown in Figure 5, the bottom of the dry recovery bucket 3 is inclined, with the side near the liquid storage bucket 2 (i.e., the side facing the front end of the floor brush 1) being higher and the side away from the liquid storage bucket 2 (i.e., the side facing the rear end of the floor brush 1) being lower. A matching inclined surface is provided above the main motor 4, and a sealing device is provided at the junction of the two inclined surfaces. The inclined surface creates a space above the main motor 4, within which the absolute pressure sensor 24 can be located. The inclined surface also serves as a guide when the user installs the dry recovery bucket 3, guiding the user as they move the dry recovery bucket 3 into its installation position. In this installation position, the dry recovery bucket 3 is sealed to the main motor 4 below and communicates with the liquid storage bucket 2.

[0086] As can be seen, the addition of the absolute pressure sensor 24 in this embodiment enables real-time monitoring of the suction air duct status, intelligently identifying blockages, and improving the user experience. Blockages in the suction air duct can prevent the cleaning device from properly drawing in dirt during cleaning. This can lead to users experiencing a perceived weakness in the cleaning device's cleaning performance.

[0087] In addition, due to the different altitudes of the users' areas, if a judgment reference value is used to compare with the data sensed by the absolute pressure sensor 24 to determine whether there is a blockage, a false alarm will occur, which will also affect the user's use. For example, one user is in a low-altitude or regular-altitude area, such as Beijing, and the other user is in a high-altitude area, such as Lhasa. The altitude of the Beijing Plain is more than 20 meters; the altitude of Lhasa is 3,650 meters. If the cleaning equipment uses the judgment reference value set at the altitude of Beijing. Then, when the user in Lhasa uses the cleaning equipment, it will report a blockage and the user will not be able to use the equipment normally. To solve this problem, the embodiment of the present application allows the absolute pressure sensor 24 to collect data once when the cleaning equipment is powered on but the main motor 4 is not started, so as to obtain the first data corresponding to the current air pressure environment; and to determine the corresponding blockage judgment reference value based on the first data.

[0088] Here, “determining the corresponding congestion determination reference value based on the first data” may specifically include: obtaining a correspondence table between threshold data and congestion determination reference values, and determining the congestion determination reference value corresponding to the first data based on the correspondence table.

[0089] The above relationship table can be obtained by testing the reading of the corresponding absolute pressure sensor 24 when the air pressure is blocked at 60Kpa-102Kpa.

[0090] In one feasible embodiment, the process of the control device determining whether there is a blockage may include the following steps:

[0091] S11 , when the cleaning device is powered on but the main motor 4 is not started, obtaining first data collected by the absolute pressure sensor 24 .

[0092] The first data is the atmospheric pressure value at the current altitude.

[0093] S12: Determine a congestion determination reference value corresponding to the first data.

[0094] S13 , after the main motor 4 is started, the second data collected by the absolute pressure sensor 24 is obtained, and the second data is compared with the blockage determination reference value.

[0095] S14: If the second data is lower than or equal to the congestion determination reference value and lasts for a set time period, it is determined that there is congestion.

[0096] It should be noted that "continuously" means that the absolute pressure sensor 24 collects the second data at a set sampling frequency, and the second data collected within a set time period is lower than or equal to the blockage determination reference value. The set time period can be 30ms, 1s, etc. This embodiment does not limit its specific value and can be determined based on actual product design requirements.

[0097] S15 , if the second data is lower than or equal to the blockage determination reference value, but the duration is less than the set duration, return to step S13 and continue to obtain the second data collected by the absolute pressure sensor 24 .

[0098] S16 : If the second data is greater than the blockage determination reference value, return to step S13 and continue to obtain the second data collected by the absolute pressure sensor 24 .

[0099] This embodiment uses an absolute pressure sensor 24 in conjunction with the above-mentioned judgment logic to accurately determine whether the airflow channel of the cleaning device is blocked. During the cleaning and drying process, the cleaning device may absorb some light dirt, hair, and other substances that easily clog the airflow channel, resulting in a loss of overall performance, which in turn leads to a lower water recovery rate, longer drying time, and poorer cleaning results. However, the user cannot intuitively perceive the occurrence of this undesirable phenomenon, which greatly affects the user experience. The solution provided by this embodiment not only accurately determines and reminds when a blockage occurs, but also takes into account the conditions when the machine is used at different altitudes and different air pressure environments, intelligently reminding the user to clean up (such as dumping the garbage in the dry recovery bucket 3, the sewage inlet pipe 26, the intermediate pipe 27, the suction nozzle channel 25, etc.), ensuring that the machine is in optimal performance when being used and guaranteeing the user's user experience. Of course, in addition to reminders, the cleaning device can also take measures such as shutting down after determining that it is blocked, which is not limited to this embodiment.

[0100] Furthermore, as shown in Figures 5 and 7, the floor brush 1 is also provided with a suction nozzle channel 25. One end of the suction nozzle channel 25 is connected to the suction nozzle 5, and the other end is connected to the bottom inlet of the sewage inlet pipe 26; the sewage inlet pipe 26 is arranged vertically, and the top outlet of the sewage inlet pipe 26 is connected to the inlet of the liquid storage barrel 2. The inlet of the sewage inlet pipe 26 at the bottom is exposed to the outside of the liquid storage barrel 2, and the sewage inlet pipe 26 is not arranged inside the fuselage. In this embodiment, the sewage inlet pipe 26 is arranged on the outside of the liquid storage barrel 2 and is fixed to the liquid storage barrel 2. The bottom inlet of the sewage inlet pipe 26 is higher than the bottom of the liquid storage barrel 2; however, in other optional embodiments, the sewage inlet pipe 26 can also be provided integrally with the liquid storage barrel, or provided on the inner side of the liquid storage barrel 2, or the sewage inlet pipe can be fixed to the fuselage or provided integrally with the fuselage.

[0101] As shown in Figures 26, 27, and 28, the liquid storage barrel 2 also includes a lid 65 disposed at the top opening of the sewage storage space. The lid 65 is provided with a zigzag channel that communicates with the top outlet of the sewage inlet pipe 26. The dashed circles in Figures 26 and 28 are partially cross-sectioned, forming cutouts in the zigzag channel as shown in the figures. Specifically, as shown in Figures 27 and 28, fluid entering through the inlet end 651 of the zigzag channel enters the liquid storage barrel 2 along the path shown in Figure 28. The top outlet of the sewage inlet pipe 26 faces forward, while the zigzag channel of the lid 65 has an inlet end 651 (i.e., the inlet of the zigzag channel) that communicates with the outlet of the sewage inlet pipe 26. Inlet end 651 faces rearward, and the outlet end of the lid 65 is positioned toward the front wall of the liquid storage barrel 2 to prevent splashing liquid from being drawn into the main motor 4. The inlet and outlet ends of the lid 65 are connected by an internal zigzag channel. See the lid 65 in a partially cross-sectional view in Figure 28. As shown in Figures 26 and 28, the barrel cover 65 includes a cover body 652 and a curved channel 654. The upper surface of the cover body 652 is provided with a grip portion 653, and the lower surface of the cover body 652 is provided with a downwardly extending curved channel 654. The curved channel 654 is offset from the lower surface of the cover body 652 to connect with the outlet of the sewage inlet pipe located on one side of the liquid storage barrel. Specifically, as shown in Figures 26 and 28, the curved channel 654 includes a transverse channel wall 6541 extending from the rear to the front, and a vertical channel wall 6542 extending downward from the front. The bottom of the vertical channel wall 6542 is provided with a base plate 6543. The base plate 6543 is provided with an outlet 6544, which faces the front (i.e., away from the main motor 4 and the dry recovery barrel 3). In other words, the outlet 6544 of the curved channel is positioned toward the front wall of the liquid storage barrel. This ensures drainage while avoiding interference with fluid flow. As shown in Figure 28 , the fluid entering through the inlet first flows horizontally along the curved channel from the rear to the front, and then flows vertically downward to enter the liquid storage barrel. In this embodiment, an opening is provided on the front side wall of the vertical channel wall to serve as an outlet. The stepped front side wall can not only play a drainage role, but also ensure fluid flux without affecting the flow of the fluid. The bottom plate can play the role of diverting the fluid toward the front. If there is no bottom plate, the fluid will flow directly downward; here, the bottom plate is designed to continue to divert the fluid forward after the horizontal channel wall. As shown in Figure 24 , a partition 121 is provided in the liquid storage barrel, dividing the liquid storage barrel into two spaces, namely the sewage storage space 59 at the top and the clean water storage space 60 at the bottom. The partition is tilted, with the front lower and the back higher. There is clean water in the clean water storage space 60, causing the partition 121 to be in the upward convex state shown in Figure 24 . If the bottom of the vertical channel wall is not provided with a bottom plate, some of the fluid will flow into the area behind the raised partition 121, while some will flow into the area in front of the raised partition 121. This can easily lead to a false alarm indicating that the sewage storage space 59 is full. Therefore, in this embodiment, a bottom plate is provided at the bottom of the vertical channel wall to further guide the fluid forward.

[0102] More specifically, as shown in Figures 5, 6, and 10, an intermediate pipe 27 (Figure 5) is connected between the suction nozzle channel 25 and the sewage inlet pipe 26. The intermediate pipe 27 is arranged at an angle within the floor brush 1; at the angle shown in Figure 5, the intermediate pipe 27 forms a concave curve. This concave curve is designed to allow for a slot 28 for the liquid reservoir, making the floor brush 1 more compact and compact. It also reduces the required clearance space at the bottom of the liquid reservoir 2, thus avoiding reducing the overall usable volume of the liquid reservoir 2. Figure 8 shows a schematic diagram of the floor brush 1 after the floor brush cover 10 is installed. The floor brush cover 10 is provided with a slot 28 for the liquid reservoir and a raised clearance portion to accommodate the sewage inlet pipe 26. As shown in Figure 6, the intermediate pipe 27 extends rearward to the rear wall of the liquid reservoir, forming an interface exposed to the outside of the floor brush. As shown in Figure 5, the inlet of the sewage inlet pipe 26 communicates with the interface of the intermediate pipe 27.

[0103] As can be seen from Figure 10, in the horizontal direction perpendicular to the vertical direction, that is, in the horizontal direction formed by the X-axis and the Z-axis, one end of the intermediate pipe 27 connecting the suction nozzle channel 25 is located in the middle of the front end of the floor brush 1; while the intermediate pipe 27 extends from the middle position to the rear end of the floor brush 1, it gradually deviates to one side of the floor brush 1 to connect with the sewage inlet pipe 26.

[0104] 8 and 9 , the nozzle top cover 113 and the nozzle lower cover 11 are buckled together to form the nozzle channel 25. The nozzle channel 25 is detachably fixed to the front end of the floor brush 1. The nozzle top cover 113 is pivotally fixed to the nozzle lower cover 11 and locked with it. The nozzle lower cover 11 is detachably arranged on the floor brush 1. The nozzle lower cover 11 extends upward from the bottom of the front end of the floor brush 1 to the top of the floor brush 1. As shown in the example of Figure 8, the nozzle lower cover 11 is an arc-shaped structure. A nozzle unlocking mechanism 108 is provided on both sides of the top of the floor brush 1 (i.e., the left and right sides of the floor brush). In one embodiment, the nozzle unlocking mechanism 108 can be a pressing mechanism, which is provided with a locking portion. Accordingly, as shown in Figure 9, a locking claw 112 is provided at a corresponding position of the nozzle lower cover 11, and the side of the locking claw 112 corresponding to the pressing mechanism is an inclined surface. The end of the locking claw 112 has a locking hook. The locking claws 112 are inserted into the locking portion and locked in the locking portion of the pressing mechanism via the locking hook. To disassemble the brush, the user presses the pressing mechanisms on both sides of the brush. The pressing force causes the locking portions to move inward, disengaging the locking claws 112 below the nozzle lower cover 11 to unlock the brush. Simultaneously, the pressing mechanism moves inward, contacting the inclined surface of the locking claws 112 and lifting them. Specifically, after unlocking, the nozzle with the locking claws partially pops outward. With both unlocking mechanisms unlocked, the nozzle can be detached from the brush, allowing the user to clean the nozzle separately.

[0105] As shown in Figures 7 and 8, the roller brush chamber cover 110 is located on the inner side of the suction nozzle channel 25. The roller brush chamber cover 110 can be a transparent cover so that the user can view the operation of the roller brush through the transparent cover. At the same time, the suction nozzle top cover 113 and the suction nozzle lower cover 11 are also transparent parts. The roller brush chamber cover 110 is provided with a claw fixing mechanism 115 at the position corresponding to the lower part of the floor brush 1 (that is, the position of the front end of the floor brush near the bottom of the floor brush). Referring to Figure 9, a fixing claw 111 is provided at the corresponding position of the suction nozzle lower cover 11. When installing the suction nozzle lower cover 11, the fixing claw 111 can be first fixed to the claw fixing mechanism 115, and then the suction nozzle lower cover 11 can be rotated inward and pressed down to lock the locking claw 112 into the locking part to complete the installation of the suction nozzle lower cover.

[0106] Furthermore, as shown in Figure 8, the floor brush 1 is provided with a suction port 1061, which is connected to the intermediate pipe 27 mentioned above. As shown in Figure 2, a nozzle top cover 113 can also be provided on the nozzle lower cover 11. A through hole is provided at the suction port 1061 on the nozzle lower cover 11 corresponding to the floor brush. The suction port 1061 is connected to the nozzle channel 25 between the nozzle top cover 113 and the nozzle lower cover 11 through the through hole. The nozzle top cover 113 is fixedly connected to the nozzle lower cover 11 through the top cover unlocking mechanism 109, and the bottoms of the two are pivotally connected. When the nozzle channel 25 is blocked or needs to be cleaned, the top cover unlocking mechanism 109 can be operated to flip the nozzle top cover 113 off the nozzle lower cover 11 to facilitate cleaning of the nozzle channel 25. When the user needs to attach an external accessory brush, the accessory brush can be connected to the suction port 1061 by opening the nozzle top cover 113.

[0107] The pipe wall of at least one of the suction nozzle channel 25, the intermediate pipe 27 and the sewage inlet pipe 26 is provided with a first sensor for detecting the degree of dirtiness. A reflection area 29 is provided at the pipe wall corresponding to the position of the first sensor. The detection signal emitted by the first sensor into the pipe reaches the reflection area 29, and is then reflected back to the first sensor by the reflection area 29. Specifically, the first sensor includes a transmitting end and a receiving end. The transmitting end is used to transmit the detection signal, and the receiving end is used to receive the reflected detection signal. Adding the reflection area 29 is equivalent to increasing the detection surface and improving the detection accuracy.

[0108] The first sensor is provided on at least one pipe wall of the nozzle channel 25, the intermediate pipe 27 and the sewage inlet pipe 26. The pipe is a transparent pipe.

[0109] For example, the first sensor can be an RGB sensor, that is, a color sensor, and the reflection area 29 can be realized by coating a certain area of ​​the pipe wall of the sewage inlet pipe 26 with a reflective material, such as electroplating an aluminum layer on the pipe wall to form a reflection area. The RGB sensor includes a transmitting end and a receiving end. The transmitting end transmits a light signal, and the light signal refracted by the liquid in the pipe passes through the reflection area 29 and then returns to the receiving end of the RGB sensor along the original path. After adding the reflection area 29, it is equivalent to point-to-face detection, which improves the detection effect. The reflection area 29 can also be achieved by installing reflective materials on the wall, such as aluminum foil patches, reflective mirrors and other reflective materials.

[0110] 10 , the position indicated by the reference numeral in the figure is the reflection area 29. Opposite to the reflection area 29, a first sensor is provided on the wall of the intermediate pipe 27.

[0111] In this embodiment, by adding a first sensor and a reflective area 29 within a conduit (such as the nozzle channel, the intermediate conduit 27, or the sewage inlet pipe 26), the degree of contamination of the sucked-in solid waste and liquid can be detected to intelligently identify the degree of contamination of the cleaning object. This allows the control device of the cleaning device to adjust the operating parameters of the cleaning device based on the degree of contamination. The operating parameters may include, but are not limited to, the rotation speed of the roller brush 8, the water spray volume of the water spray device 14, and the like.

[0112] When using the cleaning device, the user can hold the handle 31 and push and pull the floor brush 1 to move it over the cleaning object and then clean it. However, some cleaning devices, such as devices with a liquid storage tank 2, more specifically floor scrubbers, carpet cleaners, etc., are heavy, especially carpet cleaners, which make it difficult for users to push and pull them. When a carpet cleaner is pushed on a carpet, the carpet's hair provides greater resistance to the floor brush 1, making pushing and pulling even more difficult. To this end, the embodiment of the present application also adds a power-assistance system to the cleaning device to provide power to the rollers 9 on the floor brush 1, making it easier for users to use. The power-assistance system includes a power-assistance drive device provided on the floor brush 1 and a pre-identification device provided at the handle 31 and the connecting rod 16. The pre-identification device is used to identify the user's intention to use. The control device is electrically connected to the pre-identification device, and the control device controls the power-assistance drive device to output power based on the user's intention to use identified by the pre-identification device to drive the rollers 9 to move (such as forward, backward, turn, etc.). But it is not limited to: a power-assistance motor 30, a code disk assembly, etc. The floor brush 1 has two rollers 9. The two rollers 9 are driven by two different power-assisted drive devices respectively. The power end of the power-assisted motor 30 is connected to the axle of the roller 9 to drive the roller 9 to roll. In a specific implementation, if the selection of the power-assisted motor 30 requires a reduction gearbox assembly, the power-assisted motor 30 can be connected to the roller 9 through the reduction gearbox assembly. The code disc assembly is provided on the roller 9 to detect the rolling parameters of the roller 9 (such as rolling speed, rolling direction, etc.). The code disc assembly sends the detected rolling parameters to the control device, and the control device controls the operation of the power-assisted motor 30 based on the rolling parameters to ensure the power-assisted effect.

[0113] The pre-identification device is provided at the power assist sensor 99 at the connection between the handle 31 and the connecting rod 16 , and identifies the user's intention of use by sensing the pushing and pulling force of the user when using the cleaning device.

[0114] That is, as shown in the examples of Figures 13 and 14, the cleaning device described in this embodiment may also include a handle 31, a connecting rod 16, a body 15, a control device and a power-assisting motor 30. One end of the body 15 is rotatably connected to the floor brush 1, and the other end is connected to the connecting rod 16. The handle 31 is arranged at the end of the connecting rod 16. A power-assisting sensor 99 is provided at the connection between the handle 31 and the connecting rod 16, which is used to sense the push-pull force of the user when using the cleaning device. The power-assisting motor 30 is connected to the roller 9 on the floor brush 1. The control device is arranged on the floor brush 1 or the body 15, and is electrically connected to the power-assisting sensor 99 and the power-assisting motor 30. Among them, the control device is used to control the operation of the power-assisting motor 30 according to the sensed push-pull force, so as to drive the roller 9 to move and provide power assistance. The corresponding structure of the code disk assembly and the reduction gear assembly is not shown in Figure 14. The power-assisting sensor 99 senses the push-pull force of the user when using the cleaning device. The control device controls the power assist motor 30 to start working according to the push and pull force sensed by the power assist sensor when it detects that the push and pull force is greater than a certain threshold. By setting a certain threshold, the power assist system is prevented from being started by mistake.

[0115] Different cleaning areas have different resistances to the cleaning equipment due to different conditions. A single power-assistance gear is difficult to adapt to cleaning areas with different resistance conditions. Therefore, the cleaning equipment may further include a power-assistance gear switch 32 to adjust the amount of power required for cleaning areas with different resistance conditions; the power-assistance gear switch 32 is provided on the body 15 and / or the handle 31. The example shown in Figure 14 is that the power-assistance gear switch 32 is provided on the body 15. The power-assistance gear switch 32 has multiple gears, and different gears correspond to different amounts of power assistance; the control device is electrically connected to the power-assistance gear switch 32. A power-assistance gear switch 32 is provided here, and the user can select the amount of power assistance through the power-assistance gear switch 32. For example, the power-assistance gear switch 32 has three gear options, the first gear has high power assistance, the second gear has moderate power assistance, and the third gear has low power assistance. The power-assistance gear switch 32 adjusts the time required to reach the same acceleration value. The time required to reach the same acceleration value in the first gear is shorter than in the second and third gears. This adjusts the resistance to different cleaning areas and maintains a comfortable feel for the user. This is particularly true for carpets, where long-hair and short-hair pose different resistance to the same cleaning device. The softness or hardness of different carpet materials also leads to different resistance; even the roughness of the carpet pile can affect resistance. Users can choose the gear according to their usage habits. For example, if the user is using the cleaning device to clean a long-hair carpet, they can select the first gear. If they are using the cleaning device to clean a short-hair carpet, they can select the second or third gear. This also prevents the rollers from spinning and slipping due to excessive power assistance on short-hair carpets, while insufficient power assistance can cause difficulty in pushing and pulling on long-hair carpets. At the same time, the gear switch 32 can also be used to identify long and short pile carpets, so that the cleaning device adopts the cleaning mode corresponding to the gear, such as adjusting the power of the heating component to adapt to long and short pile carpets. For example, the power of the heating component in the first gear is greater than the power in the second gear, and the power in the second gear is greater than the power in the third gear.

[0116] The control device controls the power-assisting motor 30 to operate based on the gear position of the power-assisting gear switch 32 and the push-pull force sensed by the power-assisting sensor, so as to drive the roller 9 to move and provide power assistance.

[0117] In a first feasible embodiment, as shown in Figures 15, 16, 17 and 18, the power assist sensor 99 is a strain sensing device that can deform along the length of the connecting rod 16 and sense push and pull forces through the deformation. As shown in Figure 18, the strain sensing device includes a strain block 33 and a strain gauge 34, and the strain gauge 34 is disposed on the strain block 33. One end of the strain block 33 is connected to the handle 31, and the other end is connected to the connecting rod 16. When the strain block 33 is deformed due to the push and pull forces of the handle 31, the strain gauge 34 generates a sensing electrical signal and sends it to the control device, so that the control device controls the operation of the power assist motor 30 based on the received sensing electrical signal.

[0118] For example, as shown in Figure 18, the strain block 33 is a rectangular parallelepiped. Along its length, the strain block 33 is sequentially provided with a first deformation groove 35, a through hole 37, and a second deformation groove 36. Along its width, the openings of the first deformation groove 35 and the second deformation groove 36 face opposite directions. When the strain block 33 is subjected to a tensile force in its lengthwise direction, the gap 76 between the first and second deformation grooves 35, 36 increases. When the strain block 33 is subjected to a thrust in its lengthwise direction, the gap 76 between the first and second deformation grooves 35, 36 decreases.

[0119] In a specific embodiment, as shown in FIG18 , the first deformation groove 35 includes: a first oblong hole extending along the width direction; and a first slit 38 extending along one straight side of the first oblong hole and extending to the first side of the strain block 33; the strain gauge 34 is provided on the other straight side of the first oblong hole. The second deformation notch 89 includes: a second oblong hole extending along the width direction; and a second slit 39 extending along one straight side of the second oblong hole and extending to the second side of the strain block 33; the strain gauge 34 is provided on the other straight side of the second oblong hole. Along the width direction, the first side and the second side of the strain block 33 are opposite each other.

[0120] Referring to the example shown in FIG17 , the strain sensing device is disposed within a bracket 40. The strain block 33 of the strain sensing device is connected to the bracket 40 at its top. The strain block 33 is connected to a fixed block 41 outside the bracket 40 at its bottom. The top and bottom of the strain block 33 housed within the bracket 40 are connected to the bracket 40 and the fixed block 41, respectively, via connectors, forming an assembly module. This modular assembly is then assembled with the handle and connecting rod, resulting in a modular installation. This reduces assembly difficulty and installation errors, preventing errors from causing the strain block 33 to be subjected to excess force, resulting in false alarms or inaccurate force measurements. The bracket 40 and fixed block 41 are embedded within the straight rod section 42 of the handle lining and the connecting rod 16. The bracket 40 is connected to the straight rod section 42 of the handle lining, and the fixed block 41 is connected to the connecting rod 16. The handle 31 includes a grip portion and a tubular straight rod section 42 extending downward from the grip portion. The straight rod section 42 is inserted into the connecting rod 16 and connected via external connectors.

[0121] The strain sensing device, the bracket 40 and the fixing block 41 can be installed as an integral module.

[0122] In another feasible technical solution, as shown in FIG19 , the pre-identification device includes: a strain gauge 34, a shift block 44 and a reset soft glue 45. Along the axial direction of the connecting rod 16, the strain gauge 34 and the reset soft glue 45 are sequentially provided on the first mounting plate 46. The strain gauge 34 is spaced a certain distance from the reset soft glue 45. The strain gauge 34 and the reset soft glue 45 both extend in a direction perpendicular to the axial direction of the connecting rod 16. The first mounting plate 46 is fixed on the straight rod section 42 of the handle lining. Along the axial direction of the connecting rod 16, a shift block 44 and a reset groove are sequentially provided on the second mounting plate 47. The second mounting plate 47 is fixed on the connecting rod 16, and the shift block 44 has a groove, and the end of the strain gauge 34 is inserted into the groove. The reset soft glue 45 is inserted into the reset groove.

[0123] When the user pulls the handle 31, the straight rod section 42 of the handle lining moves away from the connecting rod 16, causing the shift block 44 to move the strain gauge 34 to deform downward from the perspective shown in Figure 19. The reset soft rubber 45 will also deform accordingly. When the pulling force is no longer present, the restoring force of the reset soft rubber 45 causes the shift block 44 to return to its original position, and the strain gauge 34 returns to its original shape. When the user pushes the handle 31, the straight rod section 42 of the handle lining moves into the connecting rod 16, causing the shift block 44 to move the strain gauge 34 to deform upward from the perspective shown in Figure 19. Similarly, the reset soft rubber 45 will also deform accordingly. When the pushing force is no longer present, the restoring force of the reset soft rubber 45 causes the shift block 44 to return to its original position, and the strain gauge 34 returns to its original shape.

[0124] By adding a pre-identification device and a power-assistance drive device, the embodiments of the present application can reduce the force applied by the user during pushing and pulling. Furthermore, during the power-assistance process, the pre-identification device can be used to adjust the feel of the power-assistance in real time based on the user's usage habits, providing the user with the most satisfactory power-assistance effect. Furthermore, placing the pre-identification device at the junction of the handle and the connecting rod can avoid occupying the already limited space in the handle and prevent the user from directly applying excessive force to the strain device on the handle due to the weight of the machine, which could result in damage or difficulty in identifying the amount of force applied by the user.

[0125] In a feasible technical solution, the handle 31 is composed of multiple sides, and the multiple sides are connected end to end, as shown in the example shown in Figure 20. The multiple sides include at least a first side 48, a second side 49 and a third side 50. The first side 48 is vertical and faces forward, and is an arc convex forward. The second side 49 extends backward and upward from the top of the first side 48; the third side 50 extends backward from the bottom of the first side 48. The side of the third side 50 facing away from the second side 49 is connected to the straight rod section 42 of the handle lining. An interactive device is provided on the front side of the first side 48. The "front" here is with reference to the floor brush 1. Figure 1 shows how the handle 31 is installed in the whole machine. The first side 48 of the handle 31 faces forward and convex forward into an arc.

[0126] 20 , the second side 49 extends backward and upward from the top of the first side 48 , which can be understood as the second side 49 being an oblique side extending backward and obliquely upward.

[0127] Furthermore, as shown in the example of FIG. 20 , the plurality of sides may further include a fourth side 51 , with both ends of the fourth side 51 connected to the ends of the second side 49 and the third side 50 , respectively.

[0128] Further, referring to the first auxiliary line a and the second auxiliary line b shown in Figure 20 , the first auxiliary line a is a tangent to a point on the arc; the second auxiliary line b is the central axis of the two sides; and the angle c between the first auxiliary line a and the second auxiliary line b is 120 to 160 degrees. For example, the first auxiliary line a can be a tangent to a point midway along the arc.

[0129] Figure 21 shows an exploded view of the handle 31. As shown in Figure 21, the handle 31 comprises a handle lining, an upper handle cover 54, and a lower handle cover 55. The handle lining comprises a main body 43 corresponding to the aforementioned multiple edges, and a straight rod section 42 extending downward from the third edge 50. The main body 43 is a slot structure that can accommodate electrical components such as a button assembly 52 and a screen assembly 53.

[0130] Among them, the button component 52 as shown in Figure 2 may include: a working mode switching button 521, a power button 522, a drying button 523, etc.

[0131] One approach involves snapping the handle upper cover 54 and lower cover 55 together from the top and bottom of the main body 43, respectively, to enclose the main body 43 and the electrical components mounted thereon. Another approach involves snapping the handle upper cover 54 and lower cover 55 together from the top and bottom of the main body 43, respectively, to enclose the second side 49, third side 50, and fourth side 51 of the main body 43 and the electrical components mounted thereon. A screen assembly 53 is provided on the first side 48, adapted to fit the first side 48. For example, in the example shown in FIG21 , a button assembly 52 is provided on the second side 49. The screen assembly 53 may include, but is not limited to, a screen component 56, a screen bracket 57, and a screen cover 58. The screen component 56 is mounted on the screen bracket 57, which is secured to the first side 48 of the main body 43, with the screen cover 58 provided on the outermost side. Alternatively, the screen bracket 57 and the screen cover 58 are integrally formed by secondary injection molding, and the screen element 56 is fixed to the integral structure by a fixing structure (such as a snap structure, etc.). The screen assembly 53 is then fixed to the handle upper cover 54 and the handle lower cover 55 by connecting members (such as screws, etc.).

[0132] This embodiment incorporates the aforementioned handle 31 structure, taking user experience into consideration. This handle 31 ensures that the screen display can be viewed from multiple angles. Furthermore, even when the device is on its base or in an upright position during self-cleaning or charging, the user can observe the screen display from the front to understand the status of the cleaning device. This expands the optimal viewing range, and the screen display orientation is not only suitable for viewing during operation, but also maximizes visibility from multiple directions.

[0133] 4 , when the user is using the cleaning device, with the body 15 tilted backward, the user can hold the second side 49 of the handle 31 or the junction of the second side 49 and the first side 48, and the user can see the content displayed on the screen assembly 53. In the upright position, as shown in FIG2 , the user can observe the content displayed on the screen assembly 53 from the front of the cleaning device.

[0134] In this embodiment, the first edge 48 on the front side of the handle 31 is a convex curved line, while the second edge 49 extends backward and upward from the top of the first edge 48. This design makes the handle 31 smoother and allows the user to easily observe the screen display while using it. Furthermore, this design expands the grippable area of ​​the handle 31. For example, when the body 15 is tilted backward at a certain angle, the user can grip the second edge 49. When the body 15 is lying flat or near a flat angle, the hand can move forward to grip the screen area. In this embodiment, the screen assembly 53 is not a touchscreen assembly; the user can use the screen assembly as part of the grip portion of the handle.

[0135] The screen assembly 53 may have at least one display area. If the screen has two display areas, one area may display text, animation, images, etc., while the other area may be used to display lighting effects (such as red, blue, or yellow lights). The two display areas may each occupy half.

[0136] A button assembly 52 is located at the front end of the grip portion of the handle 31, i.e., the end where the second side 49 connects to the first side 48. This button assembly 52 may include at least one button. If the button assembly 52 includes multiple buttons, the size of the buttons can be minimized within a reasonable range, and the buttons can be positioned as close to the screen assembly 53 as possible. The screen tilt angle is as large as possible to ensure a reasonable viewing angle during use and maintain a smooth and flat overall appearance of the handle 31.

[0137] This embodiment fully utilizes existing space by placing a single-curved screen assembly 53 at the front of the handle 31, ensuring the screen's visible range and user comfort. This reduces the overall size of the handle 31 and creates a more compact structure. The layout design of the screen assembly 53 fully utilizes the space in front of the handle 31, aligning with the curvature of the handle 31's exterior surface and conforming as closely to the outer surface as possible. This compact layout reduces the width and thickness of the handle 31, making it more comfortable to hold and enhancing the overall appearance of the device.

[0138] The liquid storage barrel 2 of this embodiment may have two spaces, arranged vertically. As shown in Figures 22 and 23, the upper space of the liquid storage barrel 2 is a wastewater storage space 59, and the lower space is a clean water storage space 60. As shown in Figure 26, the spaces are separated by a deformable partition 121. For example, the partition 121 may include a soft membrane structure 61. The dry recovery barrel 3 is connected to the wastewater storage space 59. Figure 22 shows the soft membrane structure 61 in a concave configuration, while Figure 23 shows the soft membrane structure 61 in a convex configuration. As shown in Figures 26 and 27, the liquid storage barrel 2 is equipped with a wastewater inlet pipe 26 and a water injection pipe 62. The wastewater inlet pipe 26 is arranged vertically. As shown in Figures 5 and 24, the bottom inlet of the wastewater inlet pipe 26 is located below the partition 121 and above the bottom wall of the liquid storage barrel. One end of the wastewater inlet pipe 26 is connected to the middle pipe 27 on the floor brush 1, and the other end is connected to the wastewater storage space 59. Figure 24 illustrates the flow of sewage into the sewage storage space 59 through the sewage inlet pipe 26. The top end of the water injection pipe 62 serves as an inlet, while the bottom end communicates with the clean water storage space 60. The water injection pipe 62 extends vertically, with one bottom end communicating vertically with the clean water storage space 60. The floor brush 1 is also equipped with a water spray line, which connects the clean water storage space 60 to the water spray line via a bottom-mounted water valve 72 located in front of the sewage inlet pipe 26. In this embodiment, the sewage inlet pipe 26 and the water injection pipe 62 are disposed outside the liquid storage barrel 2, on either side of the barrel. The corners at the rear of the barrel 2 are recessed to form a relief space, with the sewage inlet pipe 26 and the water injection pipe 62 disposed within the corresponding relief space. The sewage inlet pipe 26 is disposed within the relief space on the left side, and the water injection pipe 62 is disposed within the relief space on the right side. As shown in FIG33 , the cross-section of the liquid storage barrel 2, with the two side clearances, forms a convex U-shaped section, with the sewage inlet pipe 26 and the water injection pipe 62 respectively located within the corresponding recesses in the U-shaped cross-section. The separate design of the sewage inlet pipe 26 and the water injection pipe 62 from the liquid storage barrel 2 avoids the reduced sealing performance that would result from the sewage inlet pipe or the water injection pipe being located within the liquid storage barrel, thereby preventing the separation between the sewage storage space 59 and the fresh water storage space 60. Furthermore, the separate design of the sewage inlet pipe 26 and the water injection pipe 62 reduces the manufacturing difficulty of the liquid storage barrel 2.

[0139] The sewage storage space 59 and the clean water storage space 60 are connected by air to achieve air pressure balance within the same storage tank. Furthermore, as shown in FIG35 , an air hole 63 is provided at the top of the sewage storage space 59; the air pressure in the sewage storage space 59 and the clean water storage space 60 is balanced through the air hole 63. The provision of the air hole 63 also prevents mixing of the clean and sewage water in the two spaces. The water injection pipe 62 is provided with an air hole corresponding to the air hole 63 in the sewage storage space 59. After the water injection pipe 62 is installed in the corresponding avoidance space of the storage tank 2, the two air holes are aligned front to back. A soft rubber connecting piece 117 is inserted into the two air holes, thereby connecting the clean and sewage storage spaces, as shown in FIG35 .

[0140] The separator 121 is tilted, with the front lower and the back higher. More specifically, the soft membrane structure is tilted, with the front lower and the back higher. Similarly, the front and back correspond to the front and rear ends of the brush 1, respectively. As shown in Figure 25, the water inlet at the top of the liquid storage barrel is provided with a pivotable water inlet cover to achieve sealing or opening of the inlet.

[0141] As shown in Figures 26 and 27, the sewage inlet pipe 26 and the water injection pipe 62 are both located at the rear side of the liquid storage barrel 2; in the lateral direction, the dry recovery barrel 3 is located between the sewage inlet pipe 26 and the water injection pipe 62. As shown in Figure 27, a fixed limiting structure 130 is provided at the lower and / or upper part of the sewage inlet pipe 26. Specifically, the fixed limiting structure 130 can be a limiting block uniformly distributed along the circumference of the sewage inlet pipe 26. A fixed structure 131 is provided at the corresponding position of the liquid storage barrel 2 (as shown in Figure 27), and the fixed limiting structure 130 is embedded in the fixed structure 131 to realize the installation and positioning of the sewage inlet pipe, so that the sewage inlet pipe 26 is suspended by the fixed limiting structure 130 and exposed to the outside of the liquid storage barrel 2. The sewage inlet pipe is installed in the vertical direction.

[0142] The liquid storage barrel 2 has a second connection port 118 on the rear wall of the sewage storage space 59 that connects to the dry recovery barrel 3. In the front-to-back direction, the second connection port 118 is located behind the curved channel. The curved channel refers to the channel on the barrel lid that connects to the outlet of the sewage inlet pipe, as mentioned above. As shown in Figure 29, the second connection port 118 is located on the rear wall of the sewage storage space 59, away from the soft membrane structure. The sewage storage space 59 is provided with a water retaining eave 64, which extends forward from the rear wall. When viewed from above, the water retaining eave 64 is arranged in an arc shape on the rear wall of the sewage storage space. The water retaining eave 64 is located below the second connection port 118. The dry recovery barrel 3 is connected to the sewage storage space 59 through the second connection port 118. The water retaining eave 64 prevents liquid from entering or splashing into the second connection port 118. The second connection port 118 corresponds to and is connected to the first connection port 68 on the body 15. Once the liquid storage tank 2 is attached to the floor brush, the second communication port 118 communicates with the first communication port 68 on the housing 15. The dry recovery tank 3 is then attached to the housing 15, with the waste inlet corresponding to and intersecting the first communication port 68 on the housing 15. Specifically, the second communication port 118 communicates with the dry recovery tank 3 via a connector provided on the first communication port 68. Looking at Figures 27 and 29 together, the second communication port 118 is located behind the curved channel in the fore-aft direction.

[0143] As shown in FIG25 , a water inlet 119 connected to the clean water storage space is provided next to the handle 66. The water inlet 119 is provided with a pivotable water inlet cover 120 to achieve sealing or opening of the water inlet 119. Assuming that there is no liquid in the sewage storage space 59, when filling water into the clean water storage space 60, it is necessary to open the water inlet cover 120 provided next to the handle 66 on the liquid storage barrel 2, and add water from the top of the liquid storage barrel 2. The water inlet 119 located at the top of the liquid storage barrel 2 is connected to the injection port of the water injection pipe 62, and the cleaning liquid can be injected into the clean water storage space 60 located below the sewage storage space 59 through the water injection pipe 62. In other words, the water injection pipe 62 is provided vertically, and the bottom of the water injection pipe 62 is connected to the top of the clean water storage space. The docking port 122 on the rear side of the divider 121 is at least as high as the soft membrane structure to prevent the clean water storage space above the docking port 122 from being unable to be filled with clean liquid. Water is continuously injected into the clean water storage space through the aforementioned water inlet 119, gradually lifting the soft membrane structure 61 using water pressure. The raised soft membrane structure dynamically increases the storage volume of the clean water storage space 60. The bottom of the water inlet pipe 62 is located at the height of the inclined soft membrane structure 61, allowing for more water to be injected. The divider 121 has a soft membrane structure. Referring to Figure 26, the central portion of the divider 121 comprises the soft membrane structure 61, while the remaining portions are plastic. The soft membrane structure 61 ensures dynamic adjustment of the water volume between the two spaces. The remaining plastic components can be integrated with the upper and lower barrels through ultrasonic welding or other methods to complete the sealing of the barrel. The bottom of the water inlet pipe 62 is also connected to the docking port 122 located behind the divider 121. The docking port 122 is also inclined, with the front lower and the rear higher. The docking port 122 is located at the rear side of the partition 121 , that is, the docking port 122 is located at the rear side of the soft membrane structure.

[0144] During use, clean water is discharged outward through the bottom water valve 72, and the soft membrane structure 61 supported by the clean water will gradually sink, giving up its occupied volume to the sewage storage space 59, thereby dynamically adjusting the volume of the clean and sewage storage spaces. During use, due to the negative pressure on one side of the sewage storage space 59, if the clean water storage space 60 is connected to the atmosphere, it will cause the soft membrane structure 61 to bulge directly, causing the soft membrane structure to fail. However, if the clean water storage space 60 is completely closed during use, due to the negative pressure on one side of the sewage storage space 59 (due to the suction airflow), the air already in the clean water storage space 60 will expand until the pressure in the clean water storage space 60 matches the pressure in the sewage storage space 59. The soft membrane structure 61 will then bulge slightly, thereby reducing the volume of the sewage storage space. During the subsequent drainage process, the pump 13 needs to withstand the negative pressure on the sewage storage space 59 side. As the water volume gradually decreases, the soft membrane structure 61 will gradually concave. However, as the water volume decreases, the negative pressure on the clean water storage space 60 side will gradually increase, making it impossible to pump out the clean water. To this end, the present application connects the clean water storage space 60 with the sewage storage space 59 to ensure pressure balance between the two spaces. That is, the sewage storage space 59 and the clean water storage space 60 balance the air pressure through the air hole 63 and the water injection pipe 62.

[0145] The entire machine is equipped with a corresponding mechanism to ensure that the water filling cover 120, as shown in Figures 6 and 55, is in a closed and sealed state when the liquid storage barrel 2 is placed. A water filling cover baffle 123 is provided on the machine body 15, and the water filling cover baffle 123 is arranged corresponding to the water filling cover 120. If the user forgets to close the water filling cover 120 after filling the liquid storage barrel 2 with clean water, when the liquid storage barrel 2 is placed on the floor brush, the water filling cover baffle 123 will abut the flip-up water filling cover 120, causing the flip-up water filling cover 120 to be held against the baffle 123, and the water filling cover 120 to automatically flip back into place and close. This automatically closes the water filling cover, eliminating the need for the user to manually close the water filling cover. That is, during the placement process, the flip-up water filling cover 120 will abut against the baffle 123, gradually approaching the baffle 123 until the liquid storage barrel 2 returns to its original position. As the water filling cover 120 and the water filling cover baffle 123 approach each other, the water filling cover baffle 123 will hold the opened water filling cover 120 in place and return it to its original position, allowing the water filling cover 120 to flip back over the water filling pipe 62. Furthermore, the soft membrane structure 61 is also arranged at an angle, ensuring that water that splashes or lands on the soft membrane structure 61 rebounds from the elastic soft membrane structure 61 and is then splashed forward toward the front wall of the liquid storage tank, thereby reducing the risk of water entering the main motor 4 and preventing splashed water from flying near the second connecting port 118 and being sucked into the dry recovery tank or into the main motor.

[0146] In this embodiment, due to the large water consumption of the carpet machine, the soft film structure 61 needs to bulge and concave frequently. In this embodiment, the sewage inlet pipe and the water injection pipe 62 are both moved outside the barrel to ensure the integrity of the soft film structure 61. In addition, the soft film structure 61 is designed to be wavy to ensure the tendency of the soft film structure 61 to pre-deform and reduce the stress on the soft film structure 61. The wavy shape here means that when the soft film structure is in a convex or concave state, the soft film wall of the soft film structure is wavy rather than a smooth arc. In addition, as shown in Figures 27 and 31, the partition 121 includes the soft film structure 61 and a plastic part 124 on the periphery of the soft film structure. In this way, the partition 121, the plastic shell corresponding to the sewage storage space, and the plastic shell corresponding to the clean water storage space can be made into an integrated structure of the liquid storage barrel 2 by ultrasonic welding or other processes.

[0147] Many existing cleaning equipment are equipped with a clean water bucket and a sewage bucket, which are used to store clean water and sewage respectively, that is, the clean water bucket and the sewage bucket are set separately. The user needs to take two buckets during use, which makes it inconvenient for the user. For example, the user needs to take the clean water bucket to replenish or pour water, and take the sewage bucket to dump and clean. The user cannot operate both buckets at the same time. In order to simplify the user operation process, this embodiment combines the clean water bucket and the sewage bucket into one bucket, and separates them with a flexible soft membrane structure 61 in the middle of the bucket, or the liquid storage space in the single bucket is divided into two independent liquid storage spaces by the soft membrane structure 61 to store clean water and sewage respectively. The two liquid storage spaces are dynamically adjusted by the soft membrane structure to increase space utilization and reduce the volume of the liquid storage bucket.

[0148] As shown in Figure 27 , the top of the liquid storage barrel 2, i.e., the top of the sewage storage space 59, features a handle 66, which facilitates the user's access to the liquid storage barrel 2. The handle 66 has a grip for grasping, and a water filling cap 120 is positioned adjacent to the handle, visually integrating it with the handle and enhancing its aesthetics. This also allows the water filling port 119 to be located at the top of the liquid storage barrel 2, making it easier for the user to fill the liquid. In other words, the handle 66 includes a gripping area for the user to grasp and a water filling area for filling water. The gripping area serves as the handle, while the water filling area features a reversible water filling cap 120. A removable lid 65 for the wastewater storage space 59 is located in front of the handle 66, making it easier for users to empty waste. Furthermore, because the fresh water inlet is located at the rear, behind the soft membrane structure, when emptying wastewater, clean water, if present, gathers at the front of the storage bucket, away from the inlet, preventing it from escaping from the inlet pipe during emptying. The handle 66 is equipped with a liquid storage bucket unlocking button 67, and a movable latch 69 is provided on the rear wall of the liquid storage bucket 2. This latch 69 engages with a groove 125 (see Figure 6) in the wall of the housing 15, securing the liquid storage bucket 2. The latch 69 is located above the second communication port 118 of the liquid storage bucket 2. Below this second communication port 118, a locking block 126 with an outwardly protruding, angled locking surface is located. This immovable locking block 126 is linked to the unlocking button 67. The user presses the unlock button 67, causing the lock 69 to move to the unlocked state, and then the user can remove the liquid storage barrel 2 from the floor brush. The first communication port 68 on the middle piece 127 is a through hole that passes through the middle piece. One end of the through hole is connected to the second communication port 118 on the liquid storage barrel 2, and the other end is connected to the sewage inlet of the dry recovery barrel 3.

[0149] Furthermore, as shown in Figures 22 and 23, a detector 70 may be provided in the sewage storage space 59. As shown in Figure 2, a connector 71 (such as a pogo pin) that docks with the detector 70 is provided at a corresponding position on the body 15. After the liquid storage barrel 2 is installed on the floor brush 1, the detector 70 just corresponds to the connector 71. Specifically, as shown in Figure 2, two symmetrical connectors 71 are provided on the body 15. As shown in Figure 27, corresponding to the two connectors 71, two detectors 70 may also be provided in the sewage storage space 59.

[0150] The above-mentioned detector 70 is used to detect whether the sewage storage space 59 is full of water. The detector 70 can be set on the inner wall of the sewage storage space 59, or on the outer wall, and is located above the soft membrane structure 61. More specifically, referring to the examples shown in Figures 22 and 23, a pair of detectors 70 are located above the high side of the inclined soft membrane structure 61 and are set on the inner wall of the storage barrel. When the sewage water level rises to the pair of detectors 70, the sewage will conduct the two detectors 70 to each other, thereby generating a sewage water full signal. In this way, after the water full signal, the control device controls the corresponding device (such as an interactive device, etc.) to output a water full prompt after receiving the water full signal, such as a voice broadcast of the sewage water full prompt and / or a display of the sewage water full prompt.

[0151] As shown in Figure 8, in the horizontal direction, the inlet end of the sewage inlet pipe and the water valve 72 are located on the same side of the floor brush 1, that is, the left side, and the roller brush motor for driving the roller brush 8 is located on the other side, that is, the right side. A liquid storage barrel slot 28 is provided on the floor brush 1. A water valve 72 is provided at the bottom of the liquid storage barrel slot 28. After the liquid storage barrel 2 is inserted into the liquid storage barrel slot 28, the water outlet of the clean water storage space 60 is connected to the water valve 72. When the pump 13 starts working, the water valve 72 opens, and the clean water in the clean water storage space 60 flows out of the water valve 72 and flows into the water spray device 14. The outlet end of the sewage inlet pipe is connected to the upper inlet of the sewage storage space 59.

[0152] Furthermore, as shown in Figure 37 , the floor brush 1 is also equipped with a water sprayer 14 . The water sprayer 14 is connected to the water spray pipe to spray the cleaning liquid in the clean water storage space 60 toward the roller brush 8 . As shown in Figure 12 , the water sprayer 14 is located above the roller brush 8 . The water sprayer 14 comprises an upper shell 73 , a lower shell 74 , and a water inlet 75 . The upper shell 73 is provided with a water inlet 75 for connecting to the water spray pipe. A fluid channel is defined between the upper and lower shells 73 and 74 . The upper and lower shells 73 and 74 are combined to form a cavity with a single channel extending in a transverse direction. Water is pumped by a pump 13 through the water inlet 75 of the upper shell 73 into the cavity and then evenly discharged through the various nozzles 77 of the lower shell 74 . As shown in Figure 38 , the upper shell 73 is fixed to the lower shell 74 and secured to the lower shell 74 by ultrasonic welding, forming a fluid channel. Each nozzle provided in the lower shell 74 has the same aperture.

[0153] As shown in Figures 40, 41 and 42, since the water inlet nozzle 75 is arranged to one side, it is necessary to make the side with more nozzles 77 get more water. Therefore, an inclined and extended angular water diversion portion 132 protrudes from the outer wall of the nozzle 77 opposite the water inlet nozzle 75. The water diversion portion 132 extends obliquely relative to the water inlet nozzle 75. By inclining, the side with more nozzles 77 gets more water, thereby balancing the water intake of the nozzles 77 on both sides of the water inlet nozzle 75.

[0154] As shown in Figures 38, 39 and 40, the lower shell 74 is provided with a plurality of nozzles 77; corresponding to the positions of the different nozzles 77, the first gap 76 in the vertical direction between the upper shell 73 and the lower shell 74 is of different sizes; the first gap 76 is related to the distance between the nozzle 77 and the water inlet 75. For example, the farther away from the water inlet 75, the larger the first gap 76; the closer to the water inlet 75, the smaller the first gap 76. Because the distances between the various nozzles 77 and the water inlet 75 are different, by designing the first gaps 76 corresponding to the different nozzles 77 to be of different sizes, the water pressure of each nozzle 77 can be balanced, achieving the purpose of uniform water output without having to adjust the water outlet aperture of each nozzle. Among them, Figure 38 is a schematic cross-sectional view of the structure shown in Figure 40.

[0155] Referring to the example shown in FIG. 38 , the upper shell 73 is assembled with the lower shell 74 . The upper shell 73 and the lower shell 74 have a first gap in the vertical direction and a second gap in the front-to-back direction. The space corresponding to the second gap is the water storage chamber 78 . Liquid entering through the water inlet nozzle 75 flows into the water storage chamber 78 ; it flows into the gap 76 only when the liquid level in the water storage chamber 78 reaches and exceeds the top of the nozzle 77 . This is equivalent to liquid overflowing from the water storage chamber 78 entering the first gap 76 and then flowing out through the first gap 76 into the nozzle 77 .

[0156] When multiple spray holes have the same diameter, dripping from the spray holes when not in use is prevented by a first gap 76 between the upper and lower covers of the spray plate and a water storage chamber 78 located behind the first gap 76. Liquid entering through the water inlet nozzle 75 flows into the water storage chamber 78. When the water storage chamber 78 is full, any excess liquid will enter the first gap 76 (as shown in Figure 39), where it is then transported through the first gap 76 to each nozzle 77, ensuring uniform water discharge from multiple nozzles 77. Vertically, the top wall of the water storage chamber 78 is located above the top of the nozzles 77, and the first gap 76 is located above the nozzles 77. In the front-to-back direction, the water storage chamber 78 is located behind the first gap 76 and is connected to the first gap 76. The first gap 76, also known as the regulating chamber, is used to balance the water pressure at each nozzle 77 to achieve uniform water discharge. As shown in Figure 38, in the vertical direction, the thickness h of the regulating chamber is less than the thickness H of the water storage chamber 78.

[0157] In other embodiments, the height of the gap in the lateral direction may remain unchanged, and the water spray pressure may be adjusted by adjusting the aperture size of the water spray hole; the presence of the water storage chamber can still ensure that after use, the residual liquid in the water spray device will not flow out of the nozzle and affect the user experience.

[0158] Referring to another embodiment shown in FIG36 , to prevent residual water from flowing out of the nozzle after the water spraying is completed, a tee 79 and a pressure valve 80 are added to the water path between the pump 13 and the water spraying device 14. The pressure valve 80 has a one-way flow characteristic or a functional valve (such as a solenoid valve) that can switch between on and off states. The two ports of the tee 79 connect the water paths of the pump 13 and the water spraying device 14, respectively, to form a conventional water supply pipeline. The last port connects to one end of the pressure valve 80, and the other end of the pressure valve 80 is directly connected to the atmosphere. Because the outlet resistance of the end of the pressure valve 80 that is directly connected to the atmosphere is greater than the outlet resistance of the nozzle 77, water flows through the conventional water supply pipeline without leaking from the pressure valve 80. After the cleaning equipment is shut down and the pump 13 stops working, the one-way flow characteristic of the pressure valve 80 makes the atmospheric pressure at the pressure valve 80 equal to the atmospheric pressure at the nozzle 77. The water in the water path quickly flows out of the nozzle 77 under the action of gravity, thus draining the residual water in the water path.

[0159] In this embodiment, a photoelectric sensor 81 can be used to detect whether there is fresh water in the fresh water storage space 60. The photoelectric sensor 81 can be arranged in the water channel between the pump 13 and the water spray device 14. Since this section of the water pipe is always emptied after each use, the transparent housing of the photoelectric sensor 81 or the transparent pipe wall is not easily damaged by chemical solvents or other non-transparent substances, thereby improving the reliability of the photoelectric sensor 81 and extending the life of the photoelectric sensor 81.

[0160] The pressure valve 80 can be a water valve 72 with one-way flow characteristics and automatic flow direction control, such as a Tesla valve, capillary tube, duckbill valve, check valve, or globe valve. The end with low outlet pressure is connected to the atmosphere, while the end connected to the tee 79 is connected to high pressure. Air / water easily flows from the atmospheric end to the tee end, but not from the tee end back to the atmospheric end. When the pump 13 stops operating, since both the end of the pressure valve 80 and the nozzle 77 are connected to the atmosphere, the water in the pipeline will quickly flow out of the water spray hole under the action of gravity.

[0161] In another implementation scheme, the pressure valve 80 in Figure 36 is removed, the pressure relief pipe is connected, and the outlet height of the pressure relief pipe is raised so that the outlet resistance of the water pipe at this end is greater than the water outlet resistance of the nozzle 77. At this time, water will flow out of the nozzle 77 instead of the pressure relief pipe.

[0162] Alternatively, the pressure valve 80 can be replaced with a water valve 72 that actively controls the direction and flow of the fluid, such as a solenoid valve, a ball valve, or a diaphragm valve. When the pump 13 stops working, the pressure valve 80 is opened again, so that the end of the pressure valve 80 and the nozzle 77 are both connected to the atmosphere, and the water in the pipeline quickly flows out of the water spray hole under the action of gravity.

[0163] Alternatively, nozzle 77 could be covered with a soft rubber material resembling a duckbill valve. In this case, the water outlet would be located at the duckbill valve. When pump 13 is operating, the duckbill valve opens under the pressure of pump 13. When pump 13 stops operating, the duckbill valve's inherent elastic closing force and the negative pressure in the pipeline prevent water from leaking out. Alternatively, a duckbill valve could be used directly in place of nozzle 77.

[0164] Furthermore, the cleaning device provided in this embodiment may also include a first temperature sensor. The first temperature sensor is disposed at the suction nozzle 5 or within the suction nozzle channel 25 connected to the suction nozzle 5. The control device is electrically connected to the first temperature sensor and is configured to obtain temperature information collected by the first temperature sensor after the heating assembly 7 is in operation, determine temperature change information, and determine the dryness of the cleaning object based on the temperature change information.

[0165] One possible implementation is to have a first temperature sensor in the nozzle channel 25 for detecting the dryness of the cleaning object. The determination process of the control device may include the following steps:

[0166] S21. Acquire temperature information collected by the first temperature sensor.

[0167] S22. Determine temperature change information based on the collected temperature information.

[0168] The temperature change information can be the slope of a temperature change curve. For example, when cleaning a carpet, the average temperature of a wet carpet generally does not change much, resulting in a smaller slope for the corresponding temperature change curve. However, when the carpet dries, its temperature suddenly rises, causing the slope of the corresponding temperature change curve to suddenly increase. Therefore, the dryness of the carpet can be determined by the change in slope.

[0169] S23. Determine the dryness of the cleaning object based on the temperature change information.

[0170] Specifically, if the temperature rise slope is determined to be greater than the set value based on the temperature change information, it is determined that the dryness of the cleaning object has reached the dry level; if the temperature rise slope is determined to be less than or equal to the set value based on the temperature change information, it is determined that the dryness of the cleaning object has not reached the dry level and belongs to the wet level.

[0171] Furthermore, as shown in FIG5 , the cleaning device may also include a humidity sensor 82; the humidity sensor 82 is disposed at the bottom of the floor brush 1 and is used to detect the surface humidity of the cleaning object; the control device is electrically connected to the humidity sensor 82 and is used to determine the surface humidity of the cleaning object based on the humidity information collected by the humidity sensor 82. Although the humidity sensor 82 is disposed in front of the air outlet of the heating component 7 and is spaced a certain distance therefrom to ensure that it is not affected by the hot air from the air outlet, in actual operation, because the front suction nozzle 5 contacts the cleaning object (such as a carpet) to form a quasi-sealing effect, the hot air output by the heating device is difficult to reach the location of the humidity sensor 82 and will not affect the detection of the humidity sensor 82.

[0172] Referring to the examples shown in Figures 10 and 11, the floor brush 1 is provided with an intermediate pipe 27 connecting the suction nozzle channel 25 and the sewage inlet pipe 26. The intermediate pipe 27 may be provided with a plurality of branch pipes, and the pipe cross-sectional dimensions of the branch pipes are much smaller than the cross-sectional dimensions of the intermediate pipe 27. For example, the plurality of branch pipes include: a first branch pipe 83, a second branch pipe 84 and a third branch pipe 85. The first branch pipe 83 is connected to the humidity sensor 82 to provide negative pressure to the humidity sensor 82. The second branch pipe 84 is connected to the roller brush motor 12 on the floor brush 1, and is used to absorb the heat generated by the roller brush motor 12 during operation. The third branch pipe 85 is the installation position of the first temperature sensor. The first temperature sensor is a temperature probe inserted into the intermediate pipe 27 through the third branch pipe 85, and is used to detect the temperature of the suction airflow in the intermediate pipe 27.

[0173] The humidity sensor 82 provided at the bottom of the floor brush 1 is used to detect the surface humidity of the cleaning object. When the surface humidity is lower than a certain threshold, the humidity sensor 82 sends a signal to determine that the surface of the cleaning object is dry and belongs to the semi-dry level. The embodiment of the present application can utilize the difference in detection principles of the first temperature sensor and the humidity sensor 82. Both the first temperature sensor and the humidity sensor 82 can detect dryness, but they use different recognition principles. When the first temperature sensor sends a dry signal, the carpet is in a completely dry state. When the first temperature sensor sends a wet signal, the carpet is in a wet state. When the humidity sensor 82 sends a dry signal, the carpet is in a state where the surface is dry but the inside is not dry. By utilizing the difference between the two sensors, the three states of the carpet, namely wet, semi-dry, and completely dry, can be detected.

[0174] Correspondingly, the cleaning device may further include a prompting device, which is provided on the floor brush 1 and electrically connected to the control device.

[0175] Wherein, the control device is used for:

[0176] Based on the humidity information collected by the humidity sensor 82, when it is determined that the humidity of the surface of the cleaning object exceeds the humidity threshold, the prompt device is controlled to output a prompt message indicating that the humidity is high;

[0177] When it is determined based on the humidity information collected by the humidity sensor 82 that the humidity of the surface of the cleaning object is lower than or equal to the humidity threshold, the prompt device is controlled to output a semi-dry prompt message;

[0178] Based on the temperature information collected by the first temperature sensor, temperature change information is determined. When it is determined according to the temperature change information that the dryness of the cleaning object meets the fully dry requirement, the prompt device is controlled to output a fully dry prompt message.

[0179] For example, the prompt device may be, but is not limited to: a voice broadcast device, a prompt light that can emit different colors of light based on different prompt information, a display screen, etc.

[0180] Taking the indicator lights as an example, wet / dry indicators are located on both sides of the floor brush 1. These indicators have three colors: red, orange, and blue. As shown in Figures 3 and 53, the indicator lights 129 can be located on both sides of the bottom of the floor brush 1, between the roller brush and the roller. The indicator lights 129 have curved lighting surfaces facing the bottom and outward. Red light indicates that the first temperature sensor in the suction nozzle 5 detects that the carpet in the current area is dry (at this point, the carpet is completely dry, meaning that the carpet hair is dry from the top to the roots). Blue light indicates that the humidity sensor 82 detects that the carpet in the current area is wet. Orange light indicates that the humidity sensor 82 detects that the surface of the current area is dry (the actual carpet state is dry on the surface but not dry inside, equivalent to the top of the carpet hair being dry but the roots being wet). When the humidity sensor 82 detects that the carpet is dry (surface dry), the indicator light illuminates orange. The user can choose to continue drying the current area or proceed to the next area. When the carpet dryer moves to an undried area, the humidity sensor 82 detects that the current area is wet, and the indicator light illuminates blue. These indicators only operate during carpet drying.

[0181] Furthermore, on the basis of providing the first temperature sensor, a second temperature sensor can also be provided on the floor brush 1. The location where the second temperature sensor is provided is not specifically limited, and a location that is not affected by the temperature of the body 15 is preferred. The second temperature sensor is used to detect the ambient temperature. Drying is indicated when the temperature detected by the first temperature sensor is at least greater than the ambient temperature detected by the second temperature sensor. Optionally, the temperature detected by the first temperature sensor is at least 2°C greater than the ambient temperature before it can be determined that the cleaning object is large enough to be dry. By providing redundancy, false alarms can be avoided to ensure that the drying object is completely dry. Accordingly, the determination process of the control device may include the following steps:

[0182] S231, obtaining the ambient temperature detected by the second temperature sensor;

[0183] S232: If the temperature detected by the first temperature sensor exceeds the ambient temperature and the excess is greater than or equal to the set value, it is determined that the dryness of the cleaning object reaches the dryness level;

[0184] S233: If the temperature detected by the first temperature sensor does not exceed the ambient temperature, it is determined that the dryness of the cleaning object does not reach the dry level and belongs to the wet level.

[0185] Furthermore, the first temperature sensor can also be a non-contact temperature sensor, such as an infrared temperature sensor. The first temperature sensor is not arranged in the nozzle channel 25, but can be arranged at the bottom of the floor brush 1 or the bottom of the body 15. The non-contact first temperature sensor is used to measure the temperature of the cleaning object (such as a carpet), and the dryness of the cleaning object is determined by the difference or slope between the temperature and the ambient temperature.

[0186] Furthermore, as shown in Figure 10, a pump 13 is also provided on the floor brush 1. A water-free detection device is provided on the output pipeline of the pump 13. The water-free detection device can detect whether there is water in the clean water storage space 60 of the liquid storage barrel 2 by detecting whether there is flowing water in the output pipeline of the pump 13. The water-free detection device can be a photoelectric sensor 81 or the like. One end of the output pipeline of the pump 13 is connected to the pump 13, and the other end is connected to the clean water storage space 60 of the liquid storage barrel 2. Taking the photoelectric sensor 81 as an example, the photoelectric sensor 81 can be set at a position of the output pipeline of the pump 13, close to the liquid storage barrel 2. For example, as mentioned above, the photoelectric sensor 81 can be set on the waterway between the pump 13 and the water inlet 75 as shown in Figure 36. In order to quickly perform water-free detection, the photoelectric sensor can be set upstream of the pump 13.

[0187] Furthermore, a second sensor 86 for detecting whether the floor brush 1 is on the base may be provided on the floor brush 1. The second sensor 86 may be a Hall sensor. The second sensor 86 may be provided at the bottom of the floor brush 1, and more specifically, may be located between the two rollers 9. Accordingly, a trigger element, such as a magnetic element, may be provided on the base to cooperate with the Hall sensor. The floor brush 1 of the cleaning device is placed on the base, and the Hall sensor is brought close to the trigger element to a certain distance to trigger the Hall sensor to generate an electrical signal; after the control device receives the electrical signal generated by the Hall sensor, it determines that the cleaning device has been placed on the base, and may trigger the start of the self-cleaning program of the cleaning device.

[0188] Another embodiment of the present application also provides a base. The base includes a base body 87 and a cleaning tool 88. As shown in Figures 43 to 50, the base body 87 is provided with a bearing structure adapted to the bottom of the floor brush 1 of the cleaning equipment. The cleaning tool 88 is detachably connected to the base body 87. There is a notch 89 on the side wall of the base body 87, and the cleaning tool 88 is arranged at the notch 89 to fill the side wall notch 89; the position of the cleaning tool 88 corresponds to the position of the roller brush 8 on the floor brush 1; after removing the cleaning tool 88, one end of the roller brush 8 is exposed through the notch 89, and the roller brush 8 can be removed at the notch 89. The roller brush is a push-to-unlock type, and the roller brush end cover is provided with an unlocking button. After pressing, the roller brush is unlocked and can be pulled out of the roller brush chamber.

[0189] As shown in the example of Figure 51, the cleaning tool 88 is provided with a scraper 90 and a cleaning brush 91. The scraper 90 and the cleaning brush 91 are respectively located at two opposite ends of the cleaning tool 88. The cleaning tool 88 also includes a cleaning blade holder 92. For example, the blade of the scraper 90 is embedded in the front end of the cleaning blade holder 92, the cleaning blade holder 92 is rubber-wrapped and embedded on the side of the blade, and the cleaning brush 91 is embedded in the tail end of the cleaning blade holder 92. The cleaning tool 88 has two functions, one is to clean the roller brush 8, and the other is to block the notch 89 on the side wall of the base. The notch 89 is used to extract the roller brush 8 and remove the roller brush 8 from the floor brush 1. The method shown in Figure 50 is an insertion method, which is installed on the base. The edge of the notch 89 on the side wall of the base is provided with a slot, and the cleaning tool 88 can be installed by inserting it into the slot. Of course, other methods can also be adopted, such as a revolving door type, where one end of the cleaning tool 88 is inserted into a slot and fixed by a snap-fit ​​mechanism in the slot; the cleaning tool 88 can rotate relative to the axis of the snap-fit ​​mechanism, and by rotating the cleaning tool 88, one end of the roller brush 8 can be exposed for easy extraction. The snap-fit ​​mechanism is an elastic mechanism. When the user wants to extract the cleaning tool 88 for use, he rotates the cleaning tool 88, pinches the other end of the cleaning tool 88 and pulls it outward to pull out the cleaning tool 88. Another example is a sliding door type. A slide groove is provided on the outside of the notch 89 of the side wall of the base. The cleaning tool 88 slides into the slide groove along one end of the slide groove to block the notch 89. When the user wants to remove the cleaning tool 88, he simply slides the cleaning tool 88 along the slide groove from the end of the slide groove.

[0190] This embodiment eliminates the need to frequently lift and place the cleaning device, and can quickly take and place the roller brush 8. The user can also use the cleaning tool 88 to cut the hair wrapped around the roller brush 8 for cleaning.

[0191] As shown in Figures 43, 45 and 47, a sunken groove 93 is provided on the base 87. The top of the groove wall of the sunken groove supports the floor brush of the cleaning device upward. The cleaning device is placed on the base, and the area from the suction nozzle to the air outlet duct at the bottom of the floor brush is above the sunken groove. There is a gap between the roller brush on the floor brush and the bottom of the sunken groove so that the roller brush is in a suspended state. A sealing device 94 is provided on the top of at least part of the groove wall of the sunken groove 93, that is, a sealing device is provided around the top surface of the groove wall forming the sunken groove 93. The sealing device 94 can be a rubber part, a foam part or other soft rubber material. After ensuring that the floor brush 1 is placed on the base 87, the bottom edge of the floor brush abuts against the sealing device under the action of the self-gravity of the cleaning device, thereby realizing the sealing between the bottom edge of the floor brush and the top surface of the groove wall of the sunken groove 93, and the top of the groove wall of the sunken groove supports the floor brush of the cleaning device upward. The area from the suction nozzle 5 to the heating assembly 7 at the bottom of the floor brush 1 is above the sunken groove 93. The suction nozzle 5, the heating assembly 7 and the roller brush are at least partially located in the space formed by the sunken groove 93, and form a sealed space with the sunken groove 93 through the sealing device 94; the undulations of the bottom of the sunken groove 93 are adapted to the undulations of the bottom of the area of ​​the floor brush 1. The groove wall of the sunken groove is high at the rear end and low at the front end; and / or the groove bottom of the sunken groove is high at the rear end and low at the front end. Specifically, as shown in Figure 47, the bottom of the sunken groove 93, from front to back, at least includes: a concave arc segment L1 and a horizontal straight segment L2. The front end height of the concave arc segment L1 is lower than the rear end height. In a specific embodiment, a sealing device is provided on the top of at least part of the groove wall of the sunken groove 93, and the bottom of the floor brush abuts against the sealing device. For example, as shown in Figure 43, the groove walls of the sunken groove 93 include side walls 932 and 934 located on the left and right sides, a front wall 931 located in the front, and a rear wall 933 located in the rear. The top surfaces of the side walls 932, 934 and the front wall 931 are evenly covered with a sealing device, while the rear wall 933 is only partially covered with a sealing device, and the uncovered area is located in the central part of the top surface of the rear wall 933. Specifically, as shown in Figure 43, the top surface of the rear wall 933 is provided with a notch, and there is no sealing device at the notch. The existence of this notch can serve as a vent after the floor brush 1 is placed on the base 87, preventing the air pressure in the space between the bottom of the floor brush 1 and the sunken groove 93 from being too high. In the vertical direction, the top surface of the front wall 931 is lower than the top surface of the rear wall 933, and the front end top surfaces of the side walls 932 and 934 are also lower than their rear end top surfaces. The top surface 870 of the base is horizontal. The top surface of the front wall 931 is recessed downward from the top surface 870. The top surface of the rear wall 933 extends upward from the base 87 and is higher than the top surface 870. The top surfaces of the side walls 932 and 934 gradually decrease from back to front, from above the top surface 870 to below the top surface 870.The front end of the sunken trough is sunken below the top surface 870 of the base, forming a front wall and two side walls of the base surrounding the area in front of the sunken trough. A notch is provided in the left wall 871 of the base 87 to allow the roller brush to be removed and installed. A cleaning tool 88 removably blocks this notch 89. The area on the top of the rear wall 933 not covered by the sealing device forms a vent after the cleaning device is placed on the base. This prevents the space formed by the sunken trough and the cleaning device from being over-pressurized due to continuous air supply from the air outlet, which could cause sewage to overflow from the front wall 931.

[0192] After the cleaning device is placed on the base, the cleaning device can automatically start the self-cleaning program, or start the self-cleaning program under the user's instruction. During the self-cleaning process, the heating component 7 does not work but the main motor 4 will still discharge air to the air outlet duct 6, and the suction nozzle also keeps sucking, so that the liquid flowing out of the water spray device 14 is pushed to the front area of ​​the sunken groove by the air flow blown out from the air outlet so as to be sucked by the suction nozzle. After the self-cleaning is completed, the cleaning device can enter the drying mode of the roller brush 8. The inlet end of the suction nozzle 5, the roller brush 8, and the air outlet with the heating component 7 are all in this sealed space. After the cleaning device starts the drying mode of the roller brush 8, the roller brush keeps rotating, the main motor 4 works, and the suction nozzle 5 sucks the air into the main motor 4 of the cleaning device. The airflow from the outlet duct 6 of the main motor 4 passes through the heating assembly 7 to generate a hot air flow. Due to the suction effect of the suction nozzle 5, the hot air flow follows the bottom of the floor brush through the horizontal straight section L2 and then along the concave arc section L1 to the area below the roller brush. The hot air flow is equivalent to sticking to the bottom of the floor brush and flowing along the contour of the bottom of the floor brush, from back to front to the roller brush 8, and then enters the suction nozzle 5. The hot air flow passing through the roller brush 8 can dry the roller brush 8.

[0193] Among them, the front end of the front end suction nozzle of the floor brush 1 corresponds to the front end edge of the concave arc segment L1, so that the front end edge of the concave arc segment L1 plays a guiding role, and the hot air flow can smoothly enter the suction nozzle along the concave arc segment.

[0194] As shown in Figure 43 , a collection device 96 is provided within the recessed groove 93; the collection device 96 is located below the front portion of the roller brush 8. For example, in a specific embodiment, as shown in Figures 48 and 49 , the collection device 96 may include an upper plate 97 and a lower plate 98. The upper plate 97 is a flat plate 97, and the lower plate is a curved plate 98. The flat plate 97 is adapted to the length of the roller brush 8, and a through hole is provided through the flat plate 97. The curved plate 98 extends rearward and downward from the front end of the flat plate 97. The curved plate 98 is provided with a through hole that passes through the curved plate.

[0195] The flat plate 97 and the curved plate 98 are both provided with a filtering structure. In one feasible solution, the filtering structure on the flat plate can be a through hole provided on the flat plate; similarly, the filtering structure on the curved plate can be a through hole provided on the curved plate. Correspondingly, the through hole on the flat plate and the through hole on the curved plate can be called filter holes. In an implementation structure as shown in FIG48 , the filtering structure provided on the flat plate 97 can be a filter hole that vertically passes through the flat plate 97. The curved plate 98 extends backward and downward from the front end of the flat plate 97; wherein, the filtering structure provided on the curved plate 98 can be a filter hole that passes through the curved plate 98 in the front-to-back direction or vertically. Alternatively, the filtering structure provided on the flat plate 97 and the filtering structure provided on the curved plate 98 are a plurality of long horizontal strip-shaped grooves, and so on.

[0196] The collection device 96 is used to collect particles or other debris that are difficult to collect with the suction nozzle 5. After self-cleaning, the user can remove the net bag containing debris and rinse it separately. The collection device 96 is provided with a first connecting structure, and a second connecting structure is provided at a corresponding position on the sunken groove. The collection device 96 is installed below the roller brush of the floor brush 1, as shown in Figures 44 and 50. The first connecting structure can be a groove provided on the collection device 96. The second connecting structure, provided at a corresponding position at the front end of the sunken groove on the base, is a protrusion. To install the collection device 96, simply insert the protrusion into the groove. To remove it, lift the collection device 96 upward to remove it. In other embodiments, the first connecting structure can be an embedded portion formed at each end of the collection device 96, and the second connecting structure can be a chute provided on the side wall. The embedded portion is inserted downward into the chute to secure the collection device. To ensure a certain distance between the collection device 96 and the front wall of the sunken groove, the collection device 96 can also extend toward the front wall of the sunken groove to form a support.

[0197] In the solution provided by this embodiment, the cleaning tool 88 is installed in the notch of the side wall of the base, so that the sunken groove of the base forms a closed container that can be used to store liquid. In order to distinguish the notch as the vent mentioned above, the notch in the side wall of the base is referred to as the side wall notch 89. When the cleaning device is placed on the base, when it is necessary to clean the hair of the roller brush 8, there is no need to lift the cleaning device out of the base. Just remove the cleaning tool 88 from the base to expose the semicircular side wall notch 89, and then press the release button at the end of the roller brush 8. The roller brush 8 and the floor brush are unlocked and can be removed from the side wall notch 89 on the base. The removed cleaning tool 88 has a metal blade at the front end, which can cut the hair on the roller brush 8. The roller brush 8 is a push-to-pull type. There is no need to open the lower cover 11 of the suction nozzle and then disassemble the roller brush 8. The press-to-unlock button is integrated on the exposed side of the roller brush 8.

[0198] As shown in Figures 52a and 52b, the cleaning device is placed on a base, the suction nozzle 5 of the cleaning device is located on the front side of the collecting device 96, and the roller brush chamber cover 110 of the cleaning device is located above the collecting device 96. The roller brush 8 of the cleaning device is in a suspended state, that is, the roller brush 8 is at a certain distance from the bottom of the sunken groove 93. The sewage generated after the cleaning device starts self-cleaning can be sucked into the sewage storage space 59 through the suction nozzle 5, and the air outlet duct discharges air forward along the sunken groove, pushing the sewage to converge at the suction nozzle in front, making it convenient for the suction nozzle to recover the sewage in the sunken groove. As can be seen from Figure 52b, the collection device is located below the roller brush 8, or more precisely, below the front part of the roller brush. During self-cleaning, the solid particles on the roller brush will be scraped off, mainly falling below the front part of the roller brush. The collection device is set here to collect solid impurities and prevent them from being sucked away by the suction nozzle. As shown in Figure 52a, after self-cleaning is complete, the roller brush 8, the base's sunken groove 93, and the collection device 96 are all damp. The cleaning device can now initiate a drying process, with the main motor 4 energized and the heating assembly 7 operating. The hot air generated by the heating assembly 7 at the rear end of the sunken groove 93 flows forward through the sunken groove 93 toward the front suction nozzle 5. Simultaneously, due to the suction action of the suction nozzle 5, the hot air passes through the roller brush 8 and then through the gap between the roller brush and the bottom of the groove, entering the suction nozzle 5, accelerating the circulation of the hot air and improving drying efficiency. The process stops when the required drying is achieved. Because the roller brush 8 of the cleaning device is suspended in the air, the hot air flows through the bottom of the roller brush to the suction nozzle 5 without being blocked by the roller brush 8, resulting in a more effective drying effect. The collection device 96 is integrated to intercept large-scale dirt after self-cleaning. After drying, the user can easily brush the dirt off the collection device 96 with the cleaning brush 91. Once the dirt is dried, it is easy to clean without getting your hands dirty.

[0199] Furthermore, as shown in FIG43 , a detachable handle 128 is provided on the rear side of the base 87. The handle 128 has a gripping portion that allows the user to move the base 87. The handle 128 also includes a mounting area, such as a receiving groove, for accommodating a brush. The handle 128 extends rearward to form a retaining area, which acts as a wall stop. This allows the base 87 to be positioned at a distance from the wall when placed against it. This allows the cleaning equipment mounted on the base 87 to maintain a certain distance from the wall, preventing inconvenience in accessing the cleaning equipment or preventing the cleaning equipment's cables or external pipes from becoming entangled.

[0200] Another embodiment of the present application provides a cleaning system. As shown in Figures 53 to 55, a cleaning device is placed on a base. The cleaning device in this embodiment may have all the technical features mentioned in the above cleaning device embodiments. The base in this embodiment may have all the technical features mentioned in the above base embodiments. For details, please refer to the above and will not be repeated here.

[0201] The following describes the technical solutions and corresponding effects of the solutions provided in the embodiments of the present application in combination with specific application scenarios.

[0202] Application scenario 1:

[0203] A user uses a carpet cleaning machine to clean their home carpet. The user presses the start button on the handle 31, powering on the cleaning machine. The control device controls the absolute pressure sensor 24 to collect first data. This first data is used to determine a reference value for blockage determination. After the user uses the handle 31 to tilt the body 15 backward, as shown in Figure 14, the main motor 4 starts. The user pushes the body 15 with the handle 31. The power-assistance sensor at the connection between the handle 31 and the connecting rod 16 senses the user's thrust and transmits this information to the control device. Based on this information, the control device controls the power-assistance motor 30 on the floor brush 1, driving the roller 9 on the floor brush 1 forward to provide power to the user. The user does not feel any effort pushing the cleaning machine; instead, it feels effortless, as if the machine automatically moves forward without exerting any force, simply by gently pushing the handle 31. As the floor brush 1 cleans the carpet, the water sprayer 14 sprays water onto the carpet, and the roller brush 8 rotates to scrub the carpet. The wastewater generated by cleaning and the solid impurities scrubbed out are sucked into the nozzle channel 25 by the suction nozzle 5. The wastewater then flows through the intermediate pipe 27 on the floor brush 1 and into the sewage inlet pipe 26. The wastewater then flows through the inlet pipe into the sewage storage space 59 from the upper portion thereof. The wastewater enters the sewage storage space 59. Solid impurities, such as lint, are carried by the suction airflow through the upper portion of the sewage storage space 59 and into the dry recovery bin 3 through the first connecting port 68.

[0204] Absolute pressure sensor 24 continuously collects second data while the cleaning device is operating. The control device compares the second data with a blockage determination reference value in real time to determine whether the cleaning device is clogged. If a blockage occurs, an interactive device on the cleaning device (such as a voice announcement device or display screen) outputs a blockage warning message to prompt the user to clear the blockage.

[0205] After the carpet is cleaned, the cleaning device can start the working mode of drying the carpet. In the drying mode, the heating component 7 continues to work to generate hot air flow; the main motor 4 works. The first temperature sensor and humidity sensor 82 provided on the floor brush 1 detect the temperature and humidity of the carpet in real time. The control device can determine the dryness of the carpet through the temperature and humidity of the carpet; if the dryness reaches the fully dry level, the control prompt light 129 is controlled to display a red light; when the user sees the red light, he will know that the current area is dry and can move to the next area. If the dryness reaches the semi-dry level, the control prompt light is controlled to display an orange light; when the user sees the orange light, he will know that the current area is semi-dry and can consider moving to the next area or drying it for a while. If the dryness reaches the wet level, the control prompt light is controlled to display a blue light; when the user sees the blue light, he will know that the current area is still very wet and needs to continue drying.

[0206] Application scenario 2:

[0207] After the user has finished using the carpet cleaning machine, the carpet cleaning machine is placed on the base. The area from the suction nozzle 5 to the heating component 7 of the floor brush 1 is located in the sunken groove 93 of the base. The Hall sensor on the floor brush 1 is triggered by the trigger on the base. After the control device of the cleaning device receives the trigger signal generated by the Hall sensor, it determines that it is located on the base. At this time, the control device performs a self-check to detect whether the liquid storage barrel 2 is installed in place, whether the dry recovery barrel 3 is installed in place, whether the sewage storage space 59 is full, whether the clean water storage space 60 is short of water (whether it is enough for this self-cleaning water consumption), etc. If it is detected that the sewage barrel is full, the control device controls the interactive device (such as voice broadcast and / or display) to output a sewage full prompt. After the user sees the sewage full prompt, the liquid storage barrel 2 can be removed from the floor brush 1. After the user has dumped the sewage in the sewage storage space 59, seeing that there is not much water in the clean water storage space 60, the user can fill it with clean water. The user can complete the sewage dumping and clean water injection by removing one barrel, without having to remove two barrels separately to perform the operation.

[0208] After the sewage is dumped and the clean water is filled, the liquid storage barrel 2 can be installed back on the floor brush 1. After the control device self-checks and meets the self-cleaning conditions, the self-cleaning program is started. The main motor 4 works, the pump 13 works (to spray water through the water spray device 14), and the roller brush motor 12 works to drive the roller brush 8 to rotate and clean the roller brush 8. After the self-cleaning program is completed, the drying program is started. The main motor 4 works and the heating component 7 works to form a hot air flow from the heating component 7 forward, through the roller brush 8 to the suction nozzle 5 in the sealed space formed by the floor brush 1 and the sunken groove 93, so as to dry the roller brush 8, the suction nozzle channel 25, etc.

[0209] After drying, the user can remove the cleaning device from the base. The user can take out the collecting device 96 in the sunken groove 93 and clean it.

[0210] Alternatively, after drying, the user does not need to remove the cleaning device from the base, but removes the cleaning tool 88 on the base and extracts the roller brush 8 from the notch 89 to clean the hair entangled on the roller brush 8. Of course, cleaning the hair on the roller brush 8 can also be completed before the self-cleaning program.

[0211] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning device, characterized in that, Comprising: A floor brush, on which a suction nozzle and a roller brush located behind the suction nozzle are provided; A liquid storage bucket, arranged above the floor brush; A dry recycling bucket, communicating with the upper part of the liquid storage bucket and located behind the liquid storage bucket; A main motor, arranged on the floor brush and located below the dry recycling bucket; wherein, when the main motor operates, the suction air flow generated enters from the suction nozzle, sequentially passes through the liquid storage bucket and the dry recycling bucket, and is discharged through an air outlet duct. The dry recycling bucket communicates with the liquid storage bucket in the front-back direction and communicates with the main motor in the up-down direction.

2. The cleaning device according to claim 1, characterized in that, It further includes a sewage inlet pipe and a water injection pipe; The liquid storage bucket has a deformable partition and two upper and lower spaces separated by the partition. The upper space is a sewage storage space, and the lower space is a clean water storage space; The sewage inlet pipe communicates with the sewage storage space; The water injection pipe communicates with the clean water storage space.

3. The cleaning device according to claim 2, characterized in that, The sewage inlet pipe is arranged outside the liquid storage bucket, and the inlet of the sewage inlet pipe is exposed outside the liquid storage bucket.

4. The cleaning device according to claim 3, characterized in that, The floor brush is internally provided with an intermediate pipe connecting the sewage inlet pipe and the suction nozzle. The intermediate pipe extends backward to the rear wall of the liquid storage bucket and forms an interface exposed outside the floor brush. The inlet of the sewage inlet pipe communicates with the interface of the intermediate pipe.

5. The cleaning device according to claim 2, characterized in that, The sewage inlet pipe is vertically arranged, and the bottom inlet of the sewage inlet pipe is located below the partition and above the bottom wall of the liquid storage bucket.

6. The cleaning device according to claim 2, wherein, The liquid storage bucket further includes a bucket cover arranged at the open top of the sewage storage space; The bucket cover is provided with a bent channel communicating with the outlet of the sewage inlet pipe. The bent channel includes an inlet arranged backward and an outlet arranged toward the front wall of the liquid storage bucket.

7. The cleaning device according to claim 6, wherein The liquid storage bucket is provided with a second communication port communicating with the dry recycling bucket at the rear wall of the sewage storage space. In the front-back direction, the second communication port is located behind the bent channel.

8. The cleaning device according to claim 2, characterized in that, The water injection pipe is vertically arranged, and the bottom of the water injection pipe communicates with the top of the clean water storage space.

9. The cleaning device according to claim 2, wherein, The partition is obliquely arranged in the liquid storage bucket with the front lower and the rear higher and has a soft film structure. The clean water storage space is provided with a docking port communicating with the water injection pipe at its top. In the front-back direction, the docking port is located behind the soft film structure.

10. The cleaning device according to claim 2, characterized in that, The liquid storage bucket is provided with air holes communicating the sewage storage space and the clean water storage space. The sewage storage space and the water injection pipe are provided with mutually communicating air holes.

11. The cleaning device according to any one of claims 1 to 10, characterized in that, The cleaning device is further provided with rollers located behind the floor brush. The dry recycling bucket, the main motor and the rollers are arranged in sequence from top to bottom.

12. The cleaning device according to any one of claims 1 to 10, characterized in that, The cleaning device further includes a fuselage having two connecting arms. The two connecting arms are located on both sides of the dry recycling bucket, and the tops of the two connecting arms are connected to form an inverted U-shaped space for accommodating the dry recycling bucket.

13. A base, characterized in that, For placing the cleaning device according to any one of claims 1 to 12 above, the base includes a seat body; The seat body is provided with a sunken groove, and the top of the groove wall of the sunken groove supports the floor brush of the cleaning device upward. When the cleaning device is placed on the base, the area from the self-priming nozzle at the bottom of the floor brush to the air outlet duct is above the sunken groove, and there is a gap between the roller brush on the floor brush and the bottom of the sunken groove so that the roller brush is in a suspended state.

14. The base according to claim 13, characterized in that, At least part of the top of the groove wall of the sunken groove is provided with a sealing device, and the bottom of the floor brush abuts against the sealing device.

15. The base according to claim 13, characterized in that, The rear end of the groove wall of the sunken groove is high and the front end is low; and / or the bottom of the sunken groove is high at the rear end and low at the front end.

16. The base according to claim 13, characterized in that, The sunken groove is provided with a ventilation port. When a sealed space is formed between the bottom of the floor brush and the sunken groove, the sealed space communicates with the outside through the ventilation port.

17. The base according to claim 16, characterized in that, The groove wall of the sunken groove includes a front wall, a rear wall, and two side walls connecting the front wall and the rear wall. The ventilation port is arranged at the rear wall.

18. The base according to claim 17, wherein A part of the top surface of the rear wall is not provided with a sealing device to form a notch, and the notch is the ventilation port.

19. The pedestal according to any one of claims 13 to 18, characterized in that, A collection device is arranged in the sunken groove; the collection device is located below the front part of the roller brush; The collection device includes: A flat plate, adapted to the length of the roller brush; through holes penetrating the flat plate are provided on the flat plate; and An arc-shaped plate extending backward and downward from the front end of the flat plate; Wherein, through holes penetrating the arc-shaped plate are provided on the arc-shaped plate.

20. The base according to any one of claims 13 to 18, characterized in that It further includes a cleaning tool; The cleaning tool is detachably connected to the seat body; Wherein, a notch is provided on the side wall of the seat body, and the notch is a side wall notch. The cleaning tool is arranged at the side wall notch to fill the side wall notch; The position of the cleaning tool corresponds to the position of the roller brush on the floor brush; after the cleaning tool is disassembled, one end of the roller brush is exposed through the side wall notch and can be disassembled along the axial direction of the roller brush from the side wall notch.

21. A cleaning system, characterized in that, It includes: A cleaning device, including a floor brush. The floor brush includes a suction nozzle located on its front side and a roller brush located behind the suction nozzle. The floor brush is provided with a main motor and an air outlet duct communicated with the main motor. The floor brush is provided with an air outlet communicated with the air outlet duct at its bottom, and a heating component located in the air outlet duct; A base, the base includes a seat body; the seat body is provided with a sunken groove for bearing at least part of the area of the bottom of the floor brush; When the cleaning device is placed on the base, the roller brush, the suction nozzle, and the air outlet are located in the space formed by the sunken groove, and there is a gap between the roller brush on the floor brush and the bottom of the sunken groove so that the roller brush is in a suspended state.

Images