Floor brush assembly and cleaning equipment

Abstract

The invention relates to the technical field of household appliances, and discloses a floor brush assembly and cleaning equipment, and the floor brush assembly comprises a floor brush structure which comprises a rolling brush, the floor brush structure is provided with a dirt suction inlet, and the dirt suction inlet is suitable for being communicated with a sewage tank through a dirt suction pipeline; the atomizing nozzle is provided with a water inlet, an air inlet and an atomizing nozzle, and the atomizing nozzle is communicated with the dirt suction pipeline and used for spraying water mist to the dirt suction pipeline. Through the arrangement of the atomizing nozzle, water mist and dust can be effectively fused, and the dust removal efficiency is ensured.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to floor brush components and cleaning equipment. Background Technology

[0002] The general steps for cleaning the floor are: first, use a broom to remove dust, debris, or solid, movable dry waste; then, use a mop to wipe away dirt or water stains on the floor. As people's living standards and requirements for the living environment continue to improve, household cleaning tools are constantly being upgraded and replaced. Traditional cleaning tools such as brooms and mops can no longer meet the needs of efficient cleaning, and dry vacuum cleaners and floor scrubbers have appeared on the market.

[0003] Because floor scrubbers cannot effectively separate air and dust from the surface, some suction can cause dust to clog the filter screen, preventing the machine from operating properly. Therefore, floor scrubbers cannot meet the needs of users who only want to dry vacuum and not wet mop.

[0004] Among the related technologies, there are composite floor scrubbers with vacuum cleaner functions, which have dry vacuuming and floor scrubbing modes. Users switch between the two modes by replacing the air-solid separator for the dry vacuuming mode and the air-liquid separator for the wet mopping mode. This makes the floor scrubbers more complex in structure, more expensive, and results in a poor user experience. Summary of the Invention

[0005] In view of this, the present invention provides a floor brush assembly and cleaning equipment to solve the problems of complex structure and higher cost of composite floor scrubbers in related technologies.

[0006] In a first aspect, the present invention provides a floor brush assembly, comprising:

[0007] A floor brush structure, including a roller brush, the floor brush structure having a dirt suction port adapted to be connected to a sewage tank via a dirt suction pipe;

[0008] An atomizing nozzle has a water inlet, an air inlet, and a spray nozzle. The spray nozzle is connected to the dirt suction pipe and is used to spray water mist onto the dirt suction pipe.

[0009] Beneficial effects: When this floor brush assembly is in operation, the atomizing nozzles spray water mist into the dirt suction pipe, and the roller brush picks up dry debris such as dust and dust from the ground. The dry debris is sucked into the dirt suction pipe in the form of a gas-solid mixture. This gas-solid mixture of dirt mixes with the water mist sprayed from the nozzles within the dirt suction pipe. Water mist particles and dust particles coexist in space, undergoing irregular motion. Through inertial collisions, the dust particles overcome the surface tension of the water mist particles, condensing with the water mist. The dust merges with the water mist to form wastewater, creating a gas-solid-liquid mixture. The dirt then flows into the wastewater tank through the dirt suction pipe. The atomizing nozzle design ensures effective mixing of water mist and dust, guaranteeing high dust removal efficiency. When used in a floor scrubber, this brush assembly can convert dry waste, which is mainly in a gas-solid state, sucked up in vacuum mode into wet waste, which is mainly in a gas-solid-liquid state. At this time, the separation medium in both vacuum mode and floor scrubbing mode is in a gas-solid-liquid state, and the separation medium is the same. They can share a single separator, that is, a separator used to separate gas-solid-liquid dirt in floor scrubbing mode. It can achieve the effect of separating dirt sucked up in different functional modes through a single type of separator. The structure is simple and the cost is low.

[0010] In one optional embodiment, the atomizing nozzle is a venturi tube, the air inlet and the spray outlet are coaxially arranged, and from the air inlet to the spray outlet, the atomizing nozzle includes an air supply section, a first contraction section, a throat section and an expansion section connected in sequence, and the water inlet is connected to the throat section.

[0011] Beneficial effects: Compressed air enters through the air inlet. As the cross-section of the first contraction section decreases, the air velocity increases and the pressure decreases. The pressure difference reaches its maximum value in the throat section. At this time, water entering from the water inlet is drawn into the throat section. The water vapor mixes and enters the expansion section. With the help of the friction and shearing between the high-speed air jet in the atomizing nozzle and the liquid, very uniform and fine atomized droplets are generated and sprayed out from the nozzle.

[0012] In one alternative embodiment, the throat section is connected to a throttling orifice, and the inlet is connected to the throttling orifice.

[0013] Beneficial effects: Because the throat section is connected to a throttling orifice with a small inner diameter, water can enter the throat section at high speed, allowing gas and water to mix thoroughly within the throat section.

[0014] In one optional embodiment, from the water inlet to the throttling orifice, the atomizing nozzle includes a water supply section and a second contraction section connected in sequence;

[0015] Alternatively, the inner diameter of the inlet is equal to the inner diameter of the throttling orifice.

[0016] Beneficial effects: The inner diameter of the water supply section is relatively large, which facilitates connection with the water pump. As the inner diameter of the second contraction section gradually decreases, the water flow velocity increases after passing through the second contraction section, which can allow the water flow to enter the throat section at high speed, so that the gas and water can be fully mixed in the throat section; or the inner diameter of the inlet is equal to the inner diameter of the throttling orifice, which can allow the water flow to have a high velocity before entering the throat section.

[0017] In one optional embodiment, the inner diameter of the air supply section is d1, 2mm≤d1≤3mm, the inner diameter of the throat section is d2, 0.6mm≤d2≤1.2mm, and the inner diameter of the spray nozzle is d3, 4mm≤d3≤6mm.

[0018] Beneficial effects: The inner diameter of the air supply section is 2mm to 3mm, the inner diameter of the throat section is 0.6mm to 1.2mm, and the inner diameter of the spray nozzle is 4mm to 6mm. The required air and water pressure is small, and smaller air pumps and water pumps can be used, saving costs and floor scrubbing machine space, which is more in line with the actual situation of small floor scrubbing machine size.

[0019] In one optional embodiment, the length of the first constriction segment is L1, the length of the throat segment is L2, and the length of the expansion segment is L3, where 3mm≤L1≤7mm, 1mm≤L2≤3mm, and 5mm≤L3≤10mm.

[0020] Beneficial effects: The length of the first contraction section is 3mm to 7mm, the length of the throat section is 1mm to 3mm, the length of the expansion section is 5mm to 10mm, the volume of the atomizing nozzle is small, and consequently the volume of the water pump supplying it is small, which is more in line with the actual situation of the small size of the floor scrubber.

[0021] In one optional embodiment, the contraction angle of the first contraction segment is α1, where 8°≤α1≤15°;

[0022] And / or, the expansion angle of the expansion segment is α2, 10°≤α2≤30°.

[0023] Beneficial effects: The contraction angle of the first contraction section is 8° to 15°, and the expansion angle of the expansion section is 10° to 30°. The atomizing nozzle is smaller in size, requiring less air and water pressure, and smaller air and water pumps can be used, saving costs and floor scrubbing machine space.

[0024] In one alternative embodiment, the spray nozzle is positioned close to the dirt inlet.

[0025] Beneficial effects: Because the spray nozzle is positioned close to the dirt intake, dry waste can come into contact with the water mist as soon as it is sucked into the roller brush chamber, which can ensure that the water mist and dust are effectively mixed, thus ensuring dust removal efficiency.

[0026] In one alternative embodiment, the atomizing nozzle is mounted on the side or top of the dirt suction pipe.

[0027] Beneficial effect: Atomizing nozzles can be installed according to the space available in the floor brush structure.

[0028] In one alternative embodiment, the atomizing nozzle is mounted on the side of the dirty water suction pipe, and the inlet is fitted with a kit having a connection port perpendicular to the inlet, the connection port being adapted to communicate with a clean water tank or a wastewater tank.

[0029] Beneficial effects: The kit can change the connection position of the atomizing nozzle and the water supply pipe, optimize the water supply pipe design, and save space for the floor brush assembly.

[0030] In a second aspect, the present invention provides a cleaning device, comprising:

[0031] body;

[0032] The wastewater tank is located on the machine body;

[0033] The aforementioned floor brush assembly;

[0034] A clean water tank is located on the machine body or the floor brush structure;

[0035] A water pump, the inlet of which is connected to a clean water tank or a wastewater tank, and the outlet of which is connected to the inlet.

[0036] An air pump, connected to the air inlet, is used to supply air to the air inlet;

[0037] The power module generates the power to drive the dirt through the dirt suction pipe into the sewage tank.

[0038] When the cleaning equipment is working, the roller brush cleans the floor. If the user wants to clean dry debris such as dust on the floor, the cleaning equipment enters the vacuum mode. The water pump sends water from the clean water tank or wastewater tank to the inlet of the atomizing nozzle, and the air pump supplies air to the air inlet. Inside the atomizing nozzle, the water mixes to form a water mist, which is then sprayed out through the spray nozzle. The roller brush picks up the dust and other dry debris from the floor, sucking the dry debris into the dirt suction pipe as a gas-solid mixture. This gas-solid mixture of dirt mixes with the water mist sprayed from the nozzle. Water mist particles and dust particles coexist in the space, undergoing irregular motion. Through inertial collisions, dust particles overcome the surface tension of the water mist particles, condensing with the water mist. The dust merges with the water mist to form wastewater, creating a gas-solid-liquid mixture. The dirt then enters the wastewater tank through the wastewater suction pipe. This process ensures effective mixing of water mist and dust, guaranteeing efficient dust removal.

[0039] This cleaning equipment converts dry waste, which is mainly in a gas-solid state, sucked up in vacuum mode into wet waste, which is mainly in a gas-solid-liquid state. At this time, the separation medium in both vacuum mode and floor washing mode is in a gas-solid-liquid state. Since the separation medium is the same, a single separator can be used. That is, the separator used to separate gas-solid-liquid dirt in floor washing mode can be used. It can achieve the effect of separating dirt sucked up in different functional modes through a single type of separator. The structure is simple and the cost is low.

[0040] In one alternative embodiment, the air pump is located on the floor brush structure or the body;

[0041] The water pump is located on the floor brush structure or the machine body.

[0042] Beneficial effects: The air pump can be installed in the floor brush structure or in the body, and the water pump can also be installed in the floor brush structure or in the body, depending on the space available in the floor brush structure and the body. Attached Figure Description

[0043] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of a cleaning device according to an embodiment of the present invention;

[0045] Figure 2 for Figure 1 The front view of the cleaning equipment shown;

[0046] Figure 3 for Figure 1 A top view of the cleaning equipment shown;

[0047] Figure 4 for Figure 1 The diagram shown is a structural schematic of the cleaning equipment after it has been removed.

[0048] Figure 5 for Figure 4 The cross-sectional view of the cleaning equipment shown;

[0049] Figure 6 for Figure 4 The diagram shows the structure of the cleaning equipment after the floor brush structure has been removed.

[0050] Figure 7 for Figure 6 The cross-sectional view of the cleaning equipment shown;

[0051] Figure 8 A schematic diagram of a structure in which an atomizing nozzle is installed on the top surface of a dirty suction pipe;

[0052] Figure 9 for Figure 8 The front view of the cleaning equipment shown;

[0053] Figure 10 for Figure 8 The cross-sectional view of the cleaning equipment shown;

[0054] Figure 11 This is a schematic diagram of the atomizing nozzle.

[0055] Figure 12 This is a cross-sectional view of the atomizing nozzle.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Floor brush structure; 101. Clean water tank interface; 2. Atomizing nozzle; 201. Water inlet; 202. Air inlet; 203. Spray nozzle; 204. Air supply section; 205. First contraction section; 206. Throat section; 207. Expansion section; 208. Throttle orifice; 209. Water supply section; 210. Second contraction section; 3. Water pump; 4. Air pump; 5. First pipeline; 6. Second pipeline; 7. Body; 8. Kit; 9. Third pipeline; 10. Dirt suction pipe. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Dry vacuuming cleans dry waste, primarily consisting of dust, sand, fibers, and food scraps. In this mode, the separation of dirt is gas-solid separation, typically using a cyclone separator. Floor scrubbing cleans wet waste, mainly consisting of dirty footprints, food slurry, juice, and kitchen waste. In this mode, the separation of dirt is gas-solid-liquid separation, primarily using a baffle separator. Composite floor scrubbers with related technologies clean both dry waste (primarily gas-solid in dry vacuuming) and wet waste (primarily gas-solid-liquid in floor scrubbing). The separation media differ between these two different dirt states, requiring two separate separators, resulting in a more complex structure and higher cost.

[0060] Because the state of the dirt sucked into the machine differs between dry vacuuming and floor cleaning modes, floor cleaning mode generally uses a baffle separator, focusing on gas-liquid separation, while dry vacuuming mode generally uses a cyclone separator, focusing on gas-solid separation. For example, in different cleaning scenarios, floor cleaning machine modules or dry vacuum cleaner modules need to be assembled into the machine, and different types of separators are set in the corresponding modules. This leads to inconvenience for users, poor experience, complex structure, and higher cost.

[0061] The applicant has applied for a cleaning device and its control method, control device, and computer-readable storage medium. The cleaning device includes: a floor brush assembly, including a roller brush, the floor brush assembly having a dirt suction inlet; a water tank assembly, connected to the dirt suction inlet via a dirt suction pipe, the dirt suction pipe having a first spray nozzle connected to the water tank assembly for spraying water into the dirt suction pipe; and a power module for generating power to allow dirt to enter the water tank assembly through the dirt suction pipe. When the cleaning device is working, the roller brush can clean the floor. If the user wants to clean dry debris such as dust on the floor, the cleaning device enters a vacuuming mode. Water in the water tank assembly is sprayed into the dirt suction pipe through the first spray nozzle. The roller brush can pick up dust and other dry debris from the floor, and the dry debris is sucked into the dirt suction pipe in the form of a gas-solid mixture. The gas-solid mixture of dirt mixes with the water sprayed from the first spray nozzle in the dirt suction pipe, forming a gas-solid-liquid mixture. The dirt then enters the water tank assembly through the dirt suction pipe. The water tank assembly includes a separator. When the gas-solid-liquid mixture encounters the separator, clean air is discharged to the outside under the action of the power module, while the sewage containing dirt and garbage is intercepted in the water tank assembly by the separator.

[0062] Therefore, this cleaning equipment converts dry waste, which is mainly in a gas-solid state, into wet waste, which is mainly in a gas-solid-liquid state, into a gas-solid-liquid state. At this time, the separation medium in both the vacuuming mode and the floor washing mode is in a gas-solid-liquid state. Since the separation medium is the same, a single separator can be used, that is, the separator used in the floor washing mode to separate the gas-solid-liquid state dirt is shared. The structure is simple and the cost is low.

[0063] However, the droplets sprayed from the first nozzle are too large and may not be able to effectively mix with the dust, resulting in a low dust removal rate.

[0064] The following is combined Figures 1 to 12 The following describes embodiments of the present invention.

[0065] According to an embodiment of the present invention, in a first aspect, a floor brush assembly is provided, including a floor brush structure 1 and an atomizing nozzle 2.

[0066] The floor brush structure 1 includes a roller brush and has a dirt suction inlet, which is adapted to be connected to the sewage tank through a dirt suction pipe 10; the atomizing nozzle 2 has a water inlet 201, an air inlet 202 and a spray nozzle 203, which is connected to the dirt suction pipe 10 and is used to spray water mist onto the dirt suction pipe 10.

[0067] In this embodiment, when the floor brush assembly is working, the atomizing nozzle 2 sprays water mist into the dirt suction pipe 10. The roller brush can pick up dry debris such as dust and dust from the ground. The dry debris is sucked into the dirt suction pipe 10 in the form of a gas-solid mixture. The dirt in the form of a gas-solid mixture mixes with the water mist sprayed from the spray nozzle 203 in the dirt suction pipe 10. The water mist particles and dust particles coexist in the space and move irregularly. Through the inertial collision of the two types of particles, the dust particles can overcome the surface tension of the water mist particles and condense with the water mist. The dust merges into the water mist to form wastewater, forming a gas-solid-liquid mixture. The dirt enters the water tank assembly through the dirt suction pipe 10. The setting of the atomizing nozzle 2 can ensure that the water mist and dust are effectively mixed, ensuring dust removal efficiency. When used in a floor scrubber, this brush assembly converts dry waste, primarily in a gas-solid state, sucked in during vacuuming mode into wet waste, primarily in a gas-solid-liquid state. At this point, the separation medium in both vacuuming and scrubbing modes is in a gas-solid-liquid state, and since the separation medium is consistent, a single separator can be used. That is, the separator used to separate gas-solid-liquid dirt in scrubbing mode can be shared. It can achieve the effect of separating dirt sucked in under different functional modes through a single type of separator, resulting in a simple structure and low cost.

[0068] In one embodiment, such as Figure 11 and Figure 12 As shown, the atomizing nozzle 2 is a venturi tube, with the air inlet 202 and the spray nozzle 203 arranged coaxially. From the air inlet 202 to the spray nozzle 203, the atomizing nozzle 2 includes an air supply section 204, a first contraction section 205, a throat section 206 and an expansion section 207 connected in sequence. The water inlet 201 is connected to the throat section 206.

[0069] In this embodiment, compressed air enters from the air inlet 202. As the cross-section of the first contraction section 205 decreases, the air velocity increases and the pressure decreases. The pressure difference reaches its maximum value in the throat section 206. At this time, water entering from the water inlet 201 is drawn into the throat section 206. The water vapor mixes and enters the expansion section 207. With the help of the friction and shearing action between the high-speed air jet in the atomizing nozzle 2 and the liquid, very uniform and fine atomized droplets are generated and sprayed out from the nozzle.

[0070] In one specific embodiment, to achieve efficient water filtration and dust removal, the water mist ejected from the nozzle has a particle size of 20–120 μm, a relative droplet velocity of 14–32 m / s, and a droplet density of 0.4–1.0 L / m³. 3 .

[0071] In one embodiment, the throat section 206 is connected to a throttling orifice 208, and the inlet 201 is connected to the throttling orifice 208.

[0072] In this embodiment, since the throat section 206 is connected to the throttle orifice 208, and the inner diameter of the throttle orifice 208 is small, water can enter the throat section 206 at high speed, so that the gas and water can be fully mixed in the throat section 206.

[0073] In one embodiment, from the water inlet 201 to the throttling orifice 208, the atomizing nozzle includes a water supply section 209 and a second contraction section 210 connected in sequence.

[0074] In this embodiment, the inner diameter of the water supply section 209 is relatively large, which facilitates connection with the water pump 3. As the inner diameter of the second contraction section 210 gradually decreases, the flow velocity of the water increases after passing through the second contraction section 210, which allows the water to enter the throat section 206 at high speed, so that the gas and water are fully mixed in the throat section 206.

[0075] In an alternative embodiment, the inner diameter of the inlet 201 is equal to the inner diameter of the throttling orifice 208.

[0076] In this embodiment, the water flow can have a high velocity before entering the throat section. Since the inner diameter of the inlet 201 is small, the inlet 201 is connected to the clean water tank to prevent blockage in the water supply section 209.

[0077] In one embodiment, the inner diameter of the air supply section 204 is d1, 2mm≤d1≤3mm, the inner diameter of the throat section 206 is d2, 0.6mm≤d2≤1.2mm, and the inner diameter of the spray nozzle 203 is d3, 4mm≤d3≤6mm.

[0078] In this embodiment, the inner diameter of the air supply section 204 is 2mm to 3mm, the inner diameter of the throat section 206 is 0.6mm to 1.2mm, and the inner diameter of the spray nozzle 203 is 4mm to 6mm. The required air and water pressure is small, and smaller air pumps 4 and water pumps 3 can be used, saving costs and floor scrubbing machine space, which is more in line with the actual situation of small floor scrubbing machine size.

[0079] In a preferred embodiment, the inner diameter of the air supply section 204 is 2.8 mm, the inner diameter of the throat section 206 is 0.8 mm, and the inner diameter of the spray nozzle 203 is 5.6 mm.

[0080] In one embodiment, the length of the first contraction segment 205 is L1, the length of the throat segment 206 is L2, and the length of the expansion segment 207 is L3, where 3mm≤L1≤7mm, 1mm≤L2≤3mm, and 5mm≤L3≤10mm.

[0081] In this embodiment, the length of the first contraction section 205 is 3mm to 7mm, the length of the throat section 206 is 1mm to 3mm, the length of the expansion section 207 is 5mm to 10mm, the volume of the atomizing nozzle 2 is small, and consequently the volume of the water pump 3 supplying water to it is small, which is more in line with the actual situation of the small size of the floor scrubber.

[0082] In a preferred embodiment, the length of the first contraction segment 205 is 5 mm, the length of the throat segment 206 is 2 mm, and the length of the expansion segment 207 is 7.5 mm.

[0083] In one embodiment, the contraction angle of the first contraction segment 205 is α1, 8°≤α1≤15°; and / or, the expansion angle of the expansion segment 207 is α2, 10°≤α2≤30°.

[0084] In this embodiment, the contraction angle of the first contraction section 205 is 8° to 15°, the expansion angle of the expansion section 207 is 10° to 30°, the atomizing nozzle 2 has a smaller volume, requires less air and water pressure, and can use smaller air pump 4 and water pump 3, saving costs and floor scrubbing machine space.

[0085] In a preferred embodiment, the contraction angle of the first contraction segment 205 is 10°, and the expansion angle of the expansion segment 207 is 20°.

[0086] In a preferred embodiment, the inner diameter of the air supply section 204 is 2.8 mm, the inner diameter of the throat section 206 is 0.8 mm, the inner diameter of the spray nozzle 203 is 5.6 mm, the length of the first contraction section 205 is 5 mm, the length of the throat section 206 is 2 mm, the length of the expansion section 207 is 7.5 mm, the contraction angle of the first contraction section 205 is 10°, and the expansion angle of the expansion section 207 is 20°. At this time, the atomizing nozzle 2 has a good filtration effect and requires less air and water pressure. Smaller air pumps 4 and 3 can be used, saving costs and floor scrubbing machine space.

[0087] In one embodiment, the spray nozzle 203 is positioned near the dirt intake port.

[0088] In this embodiment, since the spray nozzle 203 is located close to the dirt suction port, the dry waste can come into contact with the water mist as soon as it is sucked into the roller brush chamber, which can ensure that the water mist and dust are effectively mixed and ensure dust removal efficiency.

[0089] It should be noted that the shape of the nozzle is not limited to a circle; it can also be a rectangle, polygon, ellipse, or other shapes.

[0090] In one embodiment, the atomizing nozzle 2 is installed on the side or top of the dirty suction pipe 10.

[0091] In this embodiment, the atomizing nozzle 2 can be installed according to the space of the floor brush structure 1.

[0092] Specifically in one embodiment, such as Figures 4 to 7 As shown, the atomizing nozzle 2 is installed on the side of the dirty suction pipe 10. The inlet 201 is fitted with a kit 8, which is interference-fitted with the inlet 201. The kit 8 has a connection port perpendicular to the inlet 201, which is suitable for connecting to a clean water tank or a sewage tank.

[0093] In this embodiment, the kit 8 can change the connection position between the atomizing nozzle 2 and the water supply pipe, optimize the water supply pipe design, and save space for the floor brush assembly.

[0094] In one specific embodiment, the connection port on the side of the kit 8 is connected to the second pipe 6. When the water pump 3 is working, the water in the clean water tank or the sewage tank flows to the kit 8 through the first pipe 5 and the second pipe 6, and then enters the water inlet 201 of the atomizing nozzle 2.

[0095] Specifically in one embodiment, such as Figures 8 to 10 As shown, the atomizing nozzle 2 is installed on the top surface of the dirty suction pipe 10.

[0096] In one embodiment, the inlet of the water pump 3 is connected to the clean water tank.

[0097] In this embodiment, since the water inlet of the water pump 3 is connected to the clean water tank, the water supplied to the atomizing nozzle 2 is clean water, which can prevent the water pump 3, the pipeline connected to the water pump 3, and the atomizing nozzle 2 from becoming blocked.

[0098] According to an embodiment of the present invention, in a second aspect, a cleaning device is provided, including a body 7, a water tankless unit, a floor brush assembly provided in the above embodiment, a clean water tank, a water pump, an air pump, and a power module.

[0099] The wastewater tank is located on the machine body 7; the clean water tank is located on the machine body 7 or the floor brush structure; the water pump's inlet end is connected to the clean water tank or wastewater tank, and its outlet end is connected to the water inlet; the air pump is connected to the air inlet and is used to supply air to the air inlet; the power module is used to generate the power to make the dirt enter the water tank assembly through the dirt suction pipe 10.

[0100] In this embodiment, when the cleaning equipment is working, the roller brush can clean the floor. If the user wants to clean dry debris such as dust on the floor, the cleaning equipment enters the vacuuming mode. The water pump 3 sends water from the clean water tank or wastewater tank to the water inlet 201 of the atomizing nozzle 2, and the air pump 4 supplies air to the air inlet 202. The water is mixed inside the atomizing nozzle 2 to form a water mist, which is then sprayed out through the spray nozzle 203. The roller brush can pick up the dry debris such as dust and dust on the floor. The dry debris is sucked into the dirt suction pipe 10 in the form of a gas-solid mixture. The dirt in the form of a gas-solid mixture mixes with the water mist sprayed from the spray nozzle 203 in the dirt suction pipe 10. The water mist particles and dust particles coexist in the space and move irregularly. Through the inertial collision of the two particles, the dust particles can overcome the surface tension of the water mist particles and condense with the water mist. The dust merges into the water mist to form wastewater, forming a gas-solid-liquid mixture. The dirt enters the wastewater tank through the dirt suction pipe 10. This ensures that the water mist and dust are effectively mixed, ensuring dust removal efficiency.

[0101] It should be noted that the sewage tank includes a separator. The spray structure converts gas-dust separation into gas-liquid separation. After the gas-solid-liquid mixture enters the separator, clean air is discharged to the outside under the action of the power module, while the sewage containing dirt and garbage is intercepted by the separator in the sewage tank.

[0102] In one specific embodiment, the separator is a gas-liquid separator, and the working principle of the gas-liquid separator is baffle separation. Due to the difference in density between gas and liquid, with liquid having a higher density and greater inertia, the gas-liquid mixture collides with the baffle plates, and the liquid adheres to the baffle plates, thus achieving gas-liquid separation.

[0103] Therefore, this cleaning equipment converts dry waste, which is mainly in a gas-solid state, sucked in during vacuuming mode into wet waste, which is mainly in a gas-solid-liquid state. At this time, the separation medium in both vacuuming and floor washing modes is in a gas-solid-liquid state, and the separation medium is the same. They can share a single separator, that is, the separator used to separate the gas-solid-liquid state dirt in floor washing mode. It can achieve the effect of separating dirt sucked in under different functional modes through a single type of separator. The structure is simple and the cost is low.

[0104] It should be noted that after the gas-solid-liquid mixture encounters the separator, the wastewater carrying small particles flows directly into the water tank, while the large particles are filtered and separated by the screen.

[0105] In one specific embodiment, the power module includes a fan that generates suction, allowing dirt to enter the wastewater tank through the dirt suction pipe 10.

[0106] In one specific embodiment, the power module also includes a battery that supplies power to electrical components such as a fan and a motor that rotates the roller brush, so that users do not need an external power source when using the cleaning equipment, thus avoiding a small area that can be cleaned due to a short power cord.

[0107] In one specific embodiment, the floor brush structure 1 is provided with a clean water tank interface 101. The water inlet of the water pump 3 is connected to the clean water tank interface 101 through a first pipe 5. The water outlet of the water pump 3 is connected to the water inlet 201 of the spray structure through a second pipe 6. When the water pump 3 is working, the water in the clean water tank flows through the clean water tank interface 101 to the first pipe 5, and then flows through the second pipe 6 to the atomizing nozzle 2.

[0108] Specifically, the preferred method is to use a spray structure for water supply in the clean water tank.

[0109] It should be noted that the clean water tank is connected to the roller brush via interface 101. In the floor washing mode, water is sprayed onto the roller brush to wet it.

[0110] In one embodiment, the air pump 4 is located on the floor brush structure 1 or the body 7; the water pump 3 is located on the floor brush structure 1 or the body 7.

[0111] In this embodiment, the air pump 4 can be installed on the floor brush structure 1 or on the body 7, and the water pump 3 can be installed on the floor brush structure 1 or on the body 7, depending on the space available for the floor brush structure 1 and the body 7.

[0112] In a preferred embodiment, considering the small internal space of the floor brush structure 1, the air pump 4 is installed on the body 7, and the air pump 4 is connected to the air inlet 202 through the third pipe 9; the water pump 3 is installed on the floor brush structure 1, and the distance between it and the atomizing nozzle 2 is small, requiring a shorter pipe length, which simplifies the pipe routing and reduces costs to some extent.

[0113] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A floor brush assembly, characterized in that, include: A floor brush structure (1) includes a roller brush, the floor brush structure (1) having a dirt suction port adapted to be connected to a sewage tank through a dirt suction pipe (10); Atomizing nozzle (2) has a water inlet (201), an air inlet (202) and a spray nozzle (203). The spray nozzle (203) is connected to the dirt suction pipe (10) and is used to spray water mist onto the dirt suction pipe (10).

2. The floor brush assembly according to claim 1, characterized in that, The atomizing nozzle (2) is a venturi tube. The air inlet (202) and the spray outlet (203) are arranged on the same axis. From the air inlet (202) to the spray outlet (203), the atomizing nozzle (2) includes an air supply section (204), a first contraction section (205), a throat section (206) and an expansion section (207) connected in sequence. The water inlet (201) is connected to the throat section (206).

3. The floor brush assembly according to claim 2, characterized in that, The throat section (206) is connected to a throttling orifice (208), and the inlet (201) is connected to the throttling orifice (208).

4. The floor brush assembly according to claim 3, characterized in that, From the water inlet (201) to the throttling orifice (208), the atomizing nozzle includes a water supply section (209) and a second contraction section (210) connected in sequence; Alternatively, the inner diameter of the inlet (201) is equal to the inner diameter of the throttling orifice (208).

5. The floor brush assembly according to any one of claims 2 to 4, characterized in that, The inner diameter of the air supply section (204) is d1, 2mm≤d1≤3mm, the inner diameter of the throat section (206) is d2, 0.6mm≤d2≤1.2mm, and the inner diameter of the spray nozzle (203) is d3, 4mm≤d3≤6mm.

6. The floor brush assembly according to any one of claims 2 to 4, characterized in that, The length of the first contraction segment (205) is L1, the length of the throat segment (206) is L2, and the length of the expansion segment (207) is L3, where 3mm≤L1≤7mm, 1mm≤L2≤3mm, and 5mm≤L3≤10mm.

7. The floor brush assembly according to any one of claims 2 to 4, characterized in that, The contraction angle of the first contraction segment (205) is α1, where 8°≤α1≤15°; And / or, the expansion angle of the expansion segment (207) is α2, 10°≤α2≤30°.

8. The floor brush assembly according to any one of claims 1 to 4, characterized in that, The spray nozzle (203) is positioned close to the dirt inlet.

9. The floor brush assembly according to any one of claims 1 to 4, characterized in that, The atomizing nozzle (2) is installed on the side or top of the dirty suction pipe (10).

10. The floor brush assembly according to claim 9, characterized in that, The atomizing nozzle (2) is installed on the side of the dirty suction pipe (10), and the inlet (201) is covered with a kit (8). The kit (8) has a connection port perpendicular to the inlet (201) and the connection port is adapted to communicate with a clean water tank or a sewage tank.

11. A cleaning device, characterized in that, include: body; The wastewater tank is located on the machine body; The floor brush assembly according to any one of claims 1 to 10; A clean water tank is located on the machine body or the floor brush structure; The water pump (3) has its inlet end connected to the clean water tank or the sewage tank, and its outlet end connected to the inlet (201); An air pump (4) is connected to the air inlet (202) and is used to supply air to the air inlet (202); A power module is used to generate power to drive dirt through the dirt suction pipe (10) into the sewage tank.

12. The cleaning equipment according to claim 11, characterized in that, The air pump (4) is located on the floor brush structure (1) or the body (7); The water pump (3) is located on the floor brush structure (1) or the body (7).

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