Surface cleaning apparatus and liquid supply method

Abstract

The invention discloses a surface cleaning apparatus, comprising: a handle; the machine body is connected with the handle; the cleaning device is connected with the machine body and comprises a cleaning piece; the liquid supply mechanism is at least partially arranged on the machine body or the cleaning device; the water segregator is arranged corresponding to the cleaning piece, and the water segregator can output liquid or water vapor to the cleaning piece; the liquid supply mechanism comprises a liquid storage container, the liquid storage container comprises a container cavity and an output structure, the output structure communicates with the container cavity, the container cavity is used for storing liquid, and the output structure is used for outputting the liquid in the container cavity; the air pump is used for communicating with the container cavity and is used for injecting air into the liquid so as to form microbubble water; the liquid pump is used for being communicated with an output structure and used for outputting fluid to the water segregator. The liquid supply mechanism supplies the prepared micro-bubble water to a cleaning part of the surface cleaning equipment, and the micro-bubble water can explode dirt attached to the surface of the cleaning part, so that the dirt is separated from the surface of the cleaning part.

Description

[0001] Related applications

[0002] This application is a divisional application of Chinese invention patent application number 2023106651950, filed on June 6, 2023, entitled "Liquid Supply Mechanism, Surface Cleaning Equipment and Liquid Supply Method". Technical Field

[0003] This invention belongs to the field of cleaning equipment technology, specifically relating to a liquid supply mechanism, surface cleaning equipment, and liquid supply method. Background Technology

[0004] As the number of cleaning sessions or the area cleaned increases, more and more stains will remain on the cleaning components of the surface cleaning equipment, and bacteria will grow, resulting in a decrease in the cleaning effect of the cleaning components on the floor. In this case, the cleaning components will be unable to perform deep cleaning on the floor. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is that during use, more and more stains and bacteria will remain on the cleaning parts of the surface cleaning equipment, thus affecting the floor cleaning effect.

[0006] To solve the above-mentioned technical problems, the present invention provides a surface cleaning device, characterized in that it comprises: handle; The main body is connected to the handle; A cleaning device, connected to the machine body, the cleaning device including a cleaning component; and A liquid supply mechanism is at least partially located in the machine body or the cleaning device; A water distributor is provided corresponding to the cleaning component, and the water distributor can output liquid or water vapor to the cleaning component; The liquid supply mechanism includes: A liquid storage container, comprising a container cavity and an output structure, wherein the output structure is connected to the container cavity, the container cavity is used to store liquid, and the output structure is used to output the liquid from the container cavity; An air pump, used to connect to the container cavity, for injecting gas into the liquid to form microbubble water; A liquid pump is used to connect to the output structure and to output fluid to the water distributor.

[0007] Optionally, the air pump prepares microbubble water by directly injecting gas into the liquid inside the container cavity.

[0008] Optionally, the liquid storage container further includes an air inlet structure, which is connected to the container cavity, and the output end of the air pump is connected to the air inlet structure through a pipeline.

[0009] Optionally, the liquid supply mechanism further includes a liquid valve and a heater, both of which are located in the cleaning device; The liquid valve includes a second inlet end and two second outlet ends, and can switch any one of the two second outlet ends to be connected to the second inlet end. The second inlet end is connected to the liquid pump, and one of the second outlet ends is used to output the liquid to the cleaning component. The heater is connected to another second liquid outlet, and the heater is used to heat the liquid to obtain a heated product, and output the heated product to the cleaning component.

[0010] Optionally, the air intake structure is located on the side of the container cavity, and the air pump pipeline is connected to the air intake structure.

[0011] Optionally, the air intake structure is located at the bottom of the container cavity.

[0012] Optionally, the air pump is connected to the container cavity through an output structure, which is located at or near the bottom of the container cavity.

[0013] Optionally, the liquid supply mechanism further includes: A communicating vessel, wherein the communicating vessel is provided with an intermittent liquid outlet channel and an air inlet channel; The liquid outlet channel includes a first liquid inlet and a first liquid outlet. The first liquid inlet is connected to the output structure, and the first liquid outlet is used to output the liquid. The air intake channel includes an air intake end and an air outlet end. The air intake end is connected to the air pump, and the air outlet end is located in the first liquid inlet end and is connected to the container cavity through the output structure.

[0014] Optionally, the liquid supply mechanism is located in the cleaning device.

[0015] The present invention also provides a liquid supply method, applied to the surface cleaning equipment described above, characterized in that the liquid supply method includes: Microbubble water is prepared by controlling the air pump to inject gas into the liquid in the storage container; Controlling the switching on / off state of the liquid valve; and The liquid pump is controlled to output the microbubble water through the liquid valve to the cleaning component or the heater.

[0016] The technical solution provided by this invention has the following advantages: By setting up an air pump that connects to the container cavity, gas is directly injected into the liquid inside the container cavity to produce microbubble water. The microbubble water can be supplied to the cleaning components of the surface cleaning equipment through the output structure. The microbubble water adheres to the surface of the cleaning components and then bursts, generating a cavitation effect that breaks up the dirt attached to the surface of the cleaning components, causing the dirt to detach from the surface of the cleaning components, thus greatly reducing or removing the dirt accumulated on the cleaning components and improving its cleaning effect. At the same time, the cleaning components use microbubble water to clean the ground, and the microbubble water adheres to the ground and produces the same effect, thus improving the overall cleaning ability of the machine and enabling deep cleaning of the ground.

[0017] Furthermore, by setting up a liquid pump and a liquid valve, when the surface cleaning equipment uses hot water or steam to clean the surface, the liquid valve connects the liquid pump and the heater. The liquid pump delivers microbubble water to the heater. The microbubbles in the microbubble water burst when heated inside the heater, causing scale to detach from the inner surface of the heater, thus achieving the effect of cleaning scale. This greatly reduces or removes scale buildup inside the heater and improves the service life of the heater. Attached Figure Description

[0018] 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.

[0019] Figure 1 A schematic diagram illustrating one embodiment of the liquid supply mechanism provided in Embodiment 1 of the present invention; Figure 2 A schematic diagram of another embodiment of the liquid supply mechanism provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of one embodiment of the surface cleaning device provided in Embodiment 2 of the present invention; Figure 4 for Figure 3 Exploded view of a medium surface cleaning device; Figure 5 for Figure 3 Side view of a surface cleaning device; Figure 6 for Figure 5 Partial cross-sectional view of a surface cleaning device; Figure 7 for Figure 6 A magnified view of area A of the surface cleaning equipment; Figure 8 for Figure 4A partial cross-sectional view of the liquid storage container of the liquid supply mechanism of the medium surface cleaning equipment, with its output structure in a truncated state; Figure 9 for Figure 4 Exploded view of the communicating vessels in the liquid supply mechanism of a medium surface cleaning device; Figure 10 for Figure 4 An exploded view of the cleaning device and part of the main body of a medium surface cleaning equipment; Figure 11 for Figure 4 Another exploded view of the cleaning device and part of the main body of the medium surface cleaning equipment; Figure 12 This is a flowchart of one embodiment of the liquid supply method provided in Embodiment 3 of the present invention.

[0020] Explanation of reference numerals in the attached figures: 100 - Liquid supply mechanism; 110 - Liquid storage container; 112 - Container cavity; 114 - Output structure; 116 - Air inlet structure; 118 - Water outlet; 120 - Air pump; 130 - Liquid pump; 140 - Liquid valve; 142 - Second liquid inlet; 144 - Second liquid outlet; 150 - Heater; 152 - Heating chamber; 160 - Communicating device; 161 - Liquid outlet channel; 162 - Air inlet channel; 163 - First liquid inlet end; 164 - First liquid outlet end; 165 - Air inlet end; 166 - Air outlet end; 167 - Lateral air outlet; 168 - Sealing sleeve; 168a - First sealing section; 168b - Connecting section; 168c - Second sealing section; 169 - Communicating component; 169a - Communicating part; 169b - First pipe body; 169c - Second pipe body; 169d - Third pipe body; 169e - Communicating groove; 170 - Outlet valve; 171 - Output flow channel; 172 - Valve core; 173 - Valve body; 174 - Elastic element; 175 - Filter screen; 176 - Valve column; 176a - Ring groove; 177 - Seal; 177a - Protruding ring; 178 - Sealing bevel; 179 - Guide hole; 200 - Surface cleaning equipment; 202 - Water distributor; 210 - Body; 212 - Mounting bracket; 214 - Connecting shell; 216 - Connector; 218 - Mounting base; 220 - Cleaning device; 222 - Cleaning component; 224 - Base; 226 - Cover; 230 - Recycling mechanism; 231 - Recycling container; 232 - Recycling pipe assembly; 233 - Mounting structure; 234 - Mounting component; 235 - Limiting component; 236 - Mounting groove; 240 - Fixing structure. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0023] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0024] Example 1 This embodiment provides a liquid supply mechanism, such as... Figure 1 As shown, in one embodiment, the liquid supply mechanism 100 is used in a surface cleaning device and includes a liquid storage container 110 and an air pump 120. The liquid storage container 110 includes a container cavity 112 and an output structure 114, which communicates with the container cavity 112. The container cavity 112 stores liquid, and the output structure 114 outputs the fluid from the container cavity 112. The air pump 120 communicates with the container cavity 112 to inject gas into the liquid, forming microbubble water. It should be noted that, typically, the liquid stored in the container cavity 112 is clean water, pure water, or cleaning water; however, it can also be other liquids used for cleaning. When the air pump 120 does not inject gas into clean water, pure water, or cleaning water, the output structure 114 can output clean water, pure water, or cleaning water. When the air pump 120 injects gas into clean water, pure water, or cleaning water to prepare microbubble water, the liquid stored in the container cavity 112 becomes microbubble water, and the output structure 114 can output microbubble water. Moreover, microbubble water is a water-air mixture, which is not a liquid but a fluid; the corresponding output structure 114 can output the fluid in the container cavity 112.

[0025] By setting up an air pump 120, which is connected to the container cavity 112, gas is directly injected into the liquid inside the container cavity 112 to prepare microbubble water. The microbubble water can be supplied to the cleaning components of the surface cleaning equipment through the output structure 114. The microbubble water adheres to the surface of the cleaning components and then bursts, generating a cavitation effect that breaks up the dirt attached to the surface of the cleaning components, causing the dirt to detach from the surface of the cleaning components, thus greatly reducing or removing the dirt accumulated on the cleaning components and improving its cleaning effect. At the same time, the cleaning components use microbubble water to clean the ground, and the microbubble water adheres to the ground and produces the same effect, thereby improving the overall cleaning ability of the machine and enabling deep cleaning of the ground. Moreover, as gas is pumped in, the pressure inside the container cavity 112 increases, and the dissolution effect of some gas in the liquid becomes better. When the output structure 114 outputs microbubble water, the output structure 114 can play a role in reducing pressure and throttling, causing the gas dissolved in the water to continuously precipitate out, generating a large number of microbubbles and increasing the concentration of microbubbles in the microbubble water.

[0026] The liquid storage container 110 also includes an air inlet structure 116, which is connected to the container cavity 112. The output end of the air pump 120 is connected to the air inlet structure 116 through a pipeline, so that the gas output by the air pump 120 can be directly injected into the liquid in the container cavity 112 through the air inlet structure 116 to prepare microbubbling water.

[0027] Furthermore, the air intake structure 116 is located on the side of the container cavity 112, facilitating the connection of the air pump 120 to the air intake structure 116 via a pipeline. Obviously, in other embodiments, the air intake structure 116 can be located at the bottom of the container cavity 112, which improves the preparation of microbubble water; the air pump 120 can also be located inside the container cavity 112 via a waterproof structure, allowing it to directly inject gas into the liquid, and facilitating integration and modularization.

[0028] Furthermore, the output structure 114 is tubular and located at the bottom of the container cavity 112 to facilitate liquid output. The output structure 114 can be located inside or outside the container cavity 112, and can directly or indirectly deliver microbubble water or liquid to the cleaning component through a pipeline.

[0029] In this embodiment, the liquid supply mechanism 100 further includes a liquid pump 130, which is connected to the output structure 114 to output liquid. By controlling the output of microbubble water or liquid in the container cavity 112 through the liquid pump 130, precise liquid supply can be achieved, improving the liquid supply efficiency and meeting the different liquid supply requirements of different surfaces to be cleaned. The input end of the liquid pump 130 can be connected to the output structure 114 through a pipeline, and the output end of the liquid pump 130 can output liquid to the cleaning component through a pipeline. It is understood that in other embodiments, the liquid supply mechanism 100 may not include the liquid pump 130, and the output structure 114 may use gravity and the pressure inside the container cavity 112 to drip microbubble water or liquid onto the cleaning component.

[0030] In this embodiment, the liquid supply mechanism 100 further includes a liquid valve 140 and a heater 150. The liquid valve 140 includes a second inlet end 142 and two second outlet ends 144, and either of the two outlet ends 144 can be switched to be connected to the second inlet end 142. The second inlet end 142 is connected to the liquid pump 130, and one outlet end 144 is used to output liquid to the cleaning component of the surface cleaning equipment. The heater 150 is connected to the other outlet end 144, and the heater 150 is used to heat the liquid to obtain a heating product, i.e., hot water or steam, and outputs the heating product to the cleaning component.

[0031] By switching the liquid valve 140 on and off, microbubble water is delivered to the cleaning component or the heater 150. When the surface cleaning equipment uses hot water or steam to clean the surface, the liquid valve 140 connects the liquid pump 130 and the heater 150, and the microbubble water is delivered into the heater 150. The microbubbles in the microbubble water burst when heated inside the heater 150, causing scale to detach from the inner surface of the heater 150, thus cleaning the scale and greatly reducing or eliminating the scale buildup inside the heater 150, thereby extending the service life of the heater 150. When the surface cleaning equipment uses microbubble water to clean the surface, the liquid valve 140 connects the liquid pump 130 and the cleaning component, and the microbubble water is delivered to the cleaning component.

[0032] In this embodiment, the liquid valve 140 is an electromagnetic directional valve, which is reliable and easy to switch. Its second inlet end 142 and two second outlet ends 144 can be either one end of a protruding tube or one end of a passage on the valve body.

[0033] The surface cleaning equipment also includes a water distributor 202, which is configured to output liquid or water vapor to the cleaning components. The water distributor 202 has two input terminals: one input terminal is connected to a second outlet 144 of a liquid valve 140 via a pipeline, and the other input terminal is connected to a heater 150 via a pipeline. The heater 150 is connected to the other second outlet 144 of the liquid valve 140 via a pipeline. The second inlet 142 of the liquid valve 140 is connected to the output terminal of a liquid pump 130 via a pipeline. It should be noted that this surface cleaning equipment can be, but is not limited to, a handheld cleaning device, a self-propelled cleaning device, an intelligent cleaning device, or other cleaning devices. The cleaning components can be, but are not limited to, roller brushes, mops, rags, or conveyor belt cleaning cloths.

[0034] Please see Figure 2 , Figure 2 A schematic diagram illustrating another embodiment of the liquid supply mechanism provided in Embodiment 1 of the present invention is shown. Compared to the liquid supply mechanism 100 of the above embodiment, the air pump 120 of the liquid supply mechanism 100 of this embodiment is connected to the container cavity 112 through an output structure 114. The output structure 114 is usually located at or near the bottom of the container cavity 112 to facilitate liquid output. Therefore, the gas input into the container cavity 112 by the air pump 120 moves from bottom to top in the liquid, which can increase the content of microbubbles in the microbubble water and improve the preparation efficiency of microbubble water.

[0035] In this embodiment, the liquid supply mechanism 100 further includes a communicating vessel 160, which has a spaced-out liquid outlet channel 161 and an air inlet channel 162. The liquid outlet channel 161 includes a first liquid inlet end and a first liquid outlet end. The first liquid inlet end is connected to the output structure 114, and the first liquid outlet end is used to output liquid. The air inlet channel 162 includes an air inlet end and an air outlet end. The air inlet end is connected to the air pump 120, and the air outlet end is located in the first liquid inlet end 163 and is connected to the container cavity 112 through the output structure 114. The first liquid inlet end can be directly connected to the output structure 114 or connected to the output structure 114 through a pipeline. The first liquid outlet end is connected to the liquid pump 130 through a pipeline, and the air inlet end is connected to the output end of the air pump 120 through a pipeline.

[0036] Because the liquid outlet channel 161 and the air inlet channel 162 are spaced apart, the liquid output from the liquid outlet channel 161 and the gas input from the air inlet channel 162 will not interfere with each other, allowing the liquid outlet channel 161 to smoothly output liquid. Furthermore, since the air outlet is located within the first liquid inlet, when the first liquid inlet is connected to the output structure 114, the air outlet naturally connects to the output structure 114 without requiring separate connections. It should be noted that in other embodiments, the connector 160 can be a three-way structure with two input ends and one output end. One input end connects to the output structure 114, the other input end connects to the air pump 120, and the output end connects to the liquid pump 130.

[0037] Other aspects of the liquid supply mechanism 100 in this embodiment are basically the same as those in the liquid supply mechanism 100 in the above embodiments. For details, please refer to the description of the above embodiments, and they will not be repeated here.

[0038] Example 2 This embodiment provides a surface cleaning device, such as... Figure 3 and Figure 4 As shown, in one embodiment, the surface cleaning device 200 includes a liquid supply mechanism 100, a body 210, and a cleaning device 220. The cleaning device 220 is disposed on the body 210 and includes a cleaning component 222. At least a portion of the liquid supply mechanism 100 is disposed on the body 210 or the cleaning device 220. The specific structure of the liquid supply mechanism 100 is as described in Embodiment 1 above. Since the surface cleaning device 200 in this embodiment adopts all the technical solutions of Embodiment 1 above, it also has all the beneficial effects brought about by the technical solutions of Embodiment 1 above, and will not be described in detail here.

[0039] In this embodiment, the body 210 is a handheld structure, and the surface cleaning device 200 is a handheld cleaning device. A portion of the liquid supply mechanism 100 is located in the body 210, and another portion is located in the cleaning device 220, which is the cleaning head or floor brush of the handheld cleaning device. It should be noted that in other embodiments, the body 210 may be a housing, and the surface cleaning device 200 may be a cleaning robot, such as a floor scrubbing robot, mopping robot, or floor wiping robot. The cleaning device 220 may include a drive mechanism and a cleaning component, with the drive mechanism driving the cleaning component. At least a portion of the liquid supply mechanism 100 may be located within the housing, or a portion of the liquid supply mechanism 100 may be located within the housing, with the other portion located on the cleaning device 220.

[0040] In this embodiment, the body 210 includes a mounting frame 212, a connecting shell 214, and a connector 216. The connecting shell 214 is connected between one end of the mounting frame 212 and the connector 216, and the connector 216 is rotatably connected to the cleaning device 220. Mounting seats 218 are provided on both the front and rear sides of one end of the mounting frame 212. The liquid storage container 110 of the liquid supply mechanism 100 is mounted on the mounting seat 218 on the rear side of the mounting frame 212, and the communicating vessel 160 of the liquid supply mechanism 100 is mounted on the rear mounting seat 218 and docks with the liquid storage container 110.

[0041] Please see Figures 5 to 9 , Figure 5 A side view of the surface cleaning device in this embodiment is shown. Figure 6 It shows Figure 5 A partial sectional view of a surface cleaning device. Figure 7 It shows Figure 6 A magnified view of area A of the surface cleaning equipment. Figure 8 A partial cross-sectional view of the liquid storage container of the liquid supply mechanism of the surface cleaning device in this embodiment is shown when it is cut off. Figure 9 An exploded view of the communicating vessel of the liquid supply mechanism of the surface cleaning device in this embodiment is shown. The liquid storage container 110 is detachably mounted on the body 210, i.e., it can be detached from the mounting base 218 on the rear side for easy removal and replenishment of the liquid. The output structure 114 is a water outlet valve 170 disposed in the container cavity 112. The water outlet valve 170 has an output flow channel 171 that connects to the container cavity 112. The water outlet valve 170 includes a valve core 172, which is elastically extendable and retractable within the output flow channel 171 to cut off or open the output flow channel 171. The first liquid inlet end 163 of the communicating vessel 160 connects to the output flow channel 171, and the air outlet end 166 abuts against the valve core 172, causing the valve core 172 to elastically contract and open the output flow channel 171. The air outlet end 166 has a lateral air outlet 167 that connects to the output flow channel 171.

[0042] When the liquid storage container 110 is assembled onto the machine body 210, the liquid storage container 110 can be fixed to the mounting base 218 on the rear side via a snap-fit ​​structure. The first liquid inlet end 163 is connected to the output flow channel 171, while the air outlet end 166 abuts against the valve core 172, causing the valve core 172 to retract and open the output flow channel 171. Figure 7 As shown, the output channel 171 connects the container cavity 112 and the first liquid inlet 163. The side outlet 167 of the gas outlet 166 can output gas laterally. The gas can enter the container cavity 112 through the output channel 171. When disassembling the liquid storage container 110 on the machine body 210, the liquid storage container 110 is removed from the mounting base 218 on the rear side by operating the snap-fit ​​structure. At this time, the gas outlet 166 is no longer in contact with the valve core 172, and the valve core 172 extends elastically to cut off the output channel 171. Figure 8 As shown, this prevents liquid from flowing out of the output channel 171, thus avoiding dripping or leakage from the liquid storage container 110. It should be noted that in other embodiments, the liquid storage container 110 can be installed in a non-removable manner, and the output structure 114 does not need to use a water outlet valve structure.

[0043] A water outlet hole 118 is provided on the cavity wall of the container cavity 112. The water outlet valve 170 also includes a valve body 173 and an elastic element 174. The valve body 173 is disposed on the cavity wall of the container cavity 112 corresponding to the water outlet hole 118 to form an output flow channel 171. The elastic element 174 is disposed between the valve core 172 and the valve body 173. The valve core 172 can cut off or open the water outlet hole 118. By using part of the cavity wall of the container cavity 112 to form the output flow channel 171, the structure of the water outlet valve 170 can be simplified, its parts can be reduced, and costs can be reduced.

[0044] Furthermore, the valve body 173 is sleeve-shaped, with one end closed and the other end connected to the bottom wall of the container cavity 112. Multiple circumferentially spaced connecting openings (not shown) are provided on its side wall, connecting the inside and outside of the valve body 173. The outlet valve 170 also includes a filter screen 175, which is cylindrical and nested within the valve body 173. Liquid in the container cavity 112 can pass sequentially through the connecting openings and the filter holes of the filter screen 175 before entering the output channel 171. The filter screen 175 can filter impurities in the liquid, preventing blockage of the channel. Furthermore, the filter holes of the filter screen 175 can reduce pressure and throttle flow. When outputting microbubble water, it can cause dissolved gases in the liquid to precipitate, forming more microbubbles and improving the efficiency of microbubble water preparation.

[0045] The valve core 172 includes a valve stem 176 and a seal 177. The valve stem 176 abuts against one end of the elastic member 174. The seal 177 is sleeved between the two ends of the valve stem 176 and has a sealing bevel 178. A portion of the sealing bevel 178 can be inserted into the water outlet 118, thus cutting off the water outlet 118. The seal 177 is gradually enlarged in the direction of liquid discharge from the water outlet 118. Its smaller end can be inserted into or moved away from the water outlet 118 as the valve core 172 extends and retracts. When its smaller end is inserted into the water outlet 118, such as... Figure 8 As shown, a portion of the sealing bevel 178 is inserted into the water outlet 118, with the sealing bevel 178 abutting against one end of the water outlet 118. Cutting off the water outlet 118 can improve the sealing performance of the sealing bevel 178 to the water outlet 118 and prevent water leakage.

[0046] To guide the extension and retraction of the valve core 172, a guide hole 179 is provided at the closed end of the valve body 173. One end of the valve stem 176 is inserted into the guide hole 179 and moves along the guide hole 179. The other end of the valve stem 176 is inserted into the water outlet 118 and is clearance-fitted with the water outlet 118, allowing for further pressure reduction and throttling using the gap between the two. To improve the sealing and stability of the fit between the valve stem 176 and the seal 177, an annular groove 176a is provided between the two ends of the valve stem 176, and a raised ring 177a is provided on the inner wall of the sleeve hole of the seal 177. The raised ring 177a is tightly fitted with the annular groove 176a, and the sleeve hole of the seal 177 is tightly fitted onto the valve stem 176. In this embodiment, the seal 177 is made of rubber, which has good flexibility and elasticity, resulting in a good sealing effect.

[0047] Combination Figure 9The communicating vessel 160 includes a sealing sleeve 168 and a connecting member 169. A portion of the liquid outlet channel 161 and an air inlet channel 162 are located in the connecting member 169, and another portion of the liquid outlet channel 161 is located in the sealing sleeve 168. One end of the sealing sleeve 168 abuts against the connecting member 169, forming the liquid outlet channel 161. The other end of the sealing sleeve 168 forms a first liquid inlet end 163, abutting against the outer surface of the container cavity 112 and connecting to the water outlet hole 118. When assembling the liquid storage container 110, the bottom of the container cavity 112 abuts against the other end of the sealing sleeve 168, thus sealing the first liquid inlet end 163 of the communicating vessel 160 against the water outlet hole 118, preventing leakage at the connection.

[0048] Furthermore, the sealing sleeve 168 includes a first sealing section 168a, a connecting section 168b, and a second sealing section 168c. The connecting section 168b connects the first sealing section 168a and the second sealing section 168c. The first sealing section 168a gradually increases in size in the direction towards the water outlet 118. The first liquid inlet end 163 is located in the first sealing section 168a and has a flanged structure, which can improve the effect of abutting the bottom of the container cavity 112, thereby improving the sealing effect. The second sealing section 168c gradually increases in size in the direction of liquid outlet. The connection between the second sealing section 168c and the connecting section 168b abuts against the connecting member 169. The second sealing section 168c is open to facilitate cooperation with the connecting member 169. Figure 7 As shown.

[0049] Furthermore, the connecting member 169 includes a connecting portion 169a, a first tube 169b, a second tube 169c, and a third tube 169d. The connecting portion 169a is provided with a connecting groove 169e. The first tube 169b is disposed in the connecting groove 169e and extends out of the connecting groove 169e. The second tube 169c is disposed at the bottom of the connecting portion 169a and connects to the first tube 169b, thus forming an air intake channel 162. The third tube 169d is disposed on the side wall of the connecting portion 169a and connects to the connecting groove 169e. One end of the sealing sleeve 168 abuts against the opening end of the connecting portion 169a and together with the third tube 169d, forms a liquid outlet channel 161.

[0050] In this embodiment, the sealing sleeve 168 is made of rubber, which has good flexibility and a good sealing effect.

[0051] Please see Figure 10 and Figure 11 Combined Figure 2 and Figure 7 , Figure 10 An exploded view of the cleaning device and part of the main body of the surface cleaning equipment in this embodiment is shown. Figure 11Another exploded view of the cleaning device and part of the main body of the surface cleaning equipment 200 in this embodiment is shown. The surface cleaning equipment 200 also includes a recovery mechanism 230, which is disposed on the main body 210. The recovery mechanism 230 includes a recovery container 231 and a recovery tube assembly 232. The recovery container 231 is used to collect dirt and is detachably mounted on the front mounting base 218. The recovery tube assembly 232 connects the cleaning device 220 and the recovery container 231 and is disposed in the connecting housing 214. The recovery tube assembly 232 has a mounting structure 233 near the outer surface of the liquid storage container 110. The air pump 120 is disposed on the mounting structure 233 and located below the rear mounting base 218. The air pump 120 is mounted on the recovery tube assembly 232 via the mounting structure 233, and its position is close to the liquid storage container 110, so as to facilitate communication with the communicating vessel 160 through the pipe.

[0052] Furthermore, the mounting structure 233 includes a mounting member 234 and limiting members 235. The mounting member 234 is located on the recovery pipe assembly 232 and has a mounting groove 236, which accommodates the air pump 120. Two limiting members 235 are positioned opposite each other on the mounting member 234 and correspond one-to-one with the two ends of the air pump 120 to restrict the two ends of the air pump 120. By clamping the two ends of the air pump 120 with the two limiting members 235 and cooperating with the mounting groove 236, the air pump 120 is fixed in the mounting structure 233, resulting in a good fixing effect.

[0053] The mounting groove 236 is a through groove with open ends. The limiting member 235 is adapted to the shape of the end of the air pump 120. In this embodiment, the end of the air pump 120 is cuboid, and the limiting member 235 can be fitted onto one corner of the end of the air pump 120 and is located at one end of the mounting groove 236. The two limiting members 235 have screw holes (unnumbered), and the outer surface of the mounting member 234 has stud holes (unnumbered). Screws pass through the screw holes and stud holes to fix the limiting members 235 to both ends of the mounting member 234.

[0054] Furthermore, the liquid pump 130 is located on the body 210 and on the side of the recovery pipe assembly 232 facing away from the air pump 120. The input end of the liquid pump 130 is connected to the first liquid outlet 164 through a pipe for outputting liquid. Specifically, the liquid pump 130 is located in the connecting housing 214 and below the front mounting base 218. To fix the liquid pump 130, the surface cleaning device 200 also includes a fixing structure 240, which is sleeved on the liquid pump 130 and fixed in the connecting housing 214.

[0055] The liquid valve 140 and heater 150 of the liquid supply mechanism 100 are both located on the cleaning device 220. The cleaning device 220 also includes a base 224 and a cover 226. The cover 226 is fitted onto the base 224. The liquid valve 140, heater 150, water distributor 202, and cleaning component 222 are all located on the base 224. The second inlet end 142 of the liquid valve 140 is connected to the output end of the liquid pump 130 via a pipeline passing through the connecting housing 214 and the connector 216, and then enters the base 224. A second outlet end 144 of the liquid valve 140 is connected to an input end of the water distributor 202 via a pipeline, supplying microbubble water or liquid to the cleaning component 222 through the water distributor 202. The other second outlet 144 of the liquid valve 140 is connected to the input end of the heater 150 through a pipeline, and the output end of the heater 150 is connected to the other input end of the water distributor 202 through a pipeline, and hot water or steam is supplied to the cleaning component 222 through the water distributor 202.

[0056] In this embodiment, the heater 150 includes a heating cavity 152 and a heating core (not shown) disposed within the heating cavity 152. The heating core heats the liquid flowing in from the input end of the heating cavity 152, and the heated hot water or steam is output through the output end of the heating cavity 152. The cleaning component 222 may be, but is not limited to, a roller brush.

[0057] Example 3 This embodiment provides a liquid supply method, such as... Figure 12 As shown, in one embodiment, the liquid supply method can be implemented based on the liquid supply mechanism 100 of Embodiment 1 or the surface cleaning device 200 of Embodiment 2. The surface cleaning device 200 includes a deep cleaning mode, a self-cleaning mode, and a regular cleaning mode. Users can switch between these modes as needed, and the cleaning modes of the surface cleaning device 200 are not limited to those listed above. The deep cleaning mode controls the liquid supply mechanism 100 to prepare microbubble water and supply it to the cleaning component 222 for surface cleaning. The self-cleaning mode controls the liquid supply mechanism 100 to prepare microbubble water and supply it to the heater 150, using the microbubble water to self-clean the scale inside the heater 150 and supply hot water / steam to the cleaning component 222. The regular cleaning mode does not require the preparation of microbubble water; the liquid supply mechanism 100 supplies liquid to the heater 150 or the cleaning component 222. This mode can be further divided into a hot water / steam cleaning mode and a room temperature water cleaning mode.

[0058] In this embodiment, the liquid supply method includes: S100: Control the air pump 120 to inject gas into the liquid in the liquid storage container 110 to prepare microbubble water; S200, control valve 140 switching on; and S300, the control liquid pump 130 outputs microbubble water through the liquid valve 140 to the cleaning component 222 or the heater 150.

[0059] When the surface cleaning device 200 enters the deep cleaning mode, the control valve 140 switches the flow of the water distributor 202 and the liquid storage container 110. The liquid pump 130 pumps the microbubble water in the container cavity 112 of the liquid storage container 110 to the water distributor 202, and then the water distributor 202 applies it to the cleaning component 222. The microbubble water cleans the dirt accumulated on the cleaning component 222, improving the cleaning effect of the cleaning component 222. At the same time, the microbubble water cleans the ground, improving the overall cleaning ability of the machine and enabling deep cleaning of the ground. When the surface cleaning device 200 enters the self-cleaning mode, the control liquid valve 140 switches the conduction of the heater 150 and the liquid storage container 110. The liquid pump 130 pumps the microbubble water in the container cavity 112 to the heater 150, and then the heater 150 heats it into hot water or steam. The hot water or steam is applied to the cleaning component 222 through the water distributor 202. The microbubble water can promote the removal of scale on the inner wall of the heater 150, thereby improving the service life of the heater 150.

[0060] It should be noted that in other embodiments, the liquid valve 140 can be switched on first, and then the air pump 120 can be controlled to inject gas into the liquid in the liquid storage container 110; or the liquid valve 140 can be switched on and the air pump 120 can be controlled to inject gas into the liquid in the liquid storage container 110 at the same time.

[0061] The liquid supply method further includes the following steps before or after step S100: S400, control valve 140 switching on; and S500 controls the liquid pump 130 to output liquid via liquid valve 140 to cleaning component 222 or heater 150.

[0062] When the surface cleaning device 200 enters the regular cleaning mode, it can clean the floor using liquid or hot water / steam. This regular cleaning mode can be executed before or after the deep cleaning mode and / or self-cleaning mode. Clearly, users can flexibly choose any of the three modes mentioned above according to their actual needs, and combine different sequences of cleaning modes.

[0063] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. Based on the embodiments of the present invention, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the scope of protection of the present invention.

Claims

1. A surface cleaning device, characterized in that, include: handle; The main body is connected to the handle; A cleaning device, connected to the machine body, the cleaning device including a cleaning component; as well as A liquid supply mechanism is at least partially located in the machine body or the cleaning device; A water distributor is provided corresponding to the cleaning component, and the water distributor can output liquid or water vapor to the cleaning component; The liquid supply mechanism includes: A liquid storage container, comprising a container cavity and an output structure, wherein the output structure is connected to the container cavity, the container cavity is used to store liquid, and the output structure is used to output the liquid from the container cavity; An air pump, used to connect to the container cavity, for injecting gas into the liquid to form microbubble water; A liquid pump is used to connect to the output structure and to output fluid to the water distributor.

2. The surface cleaning equipment according to claim 1, characterized in that, The air pump produces microbubble water by directly injecting gas into the liquid inside the container cavity.

3. The surface cleaning equipment according to claim 1, characterized in that, The liquid storage container also includes an air inlet structure, which is connected to the container cavity, and the output end of the air pump is connected to the air inlet structure through a pipeline.

4. The surface cleaning equipment according to claim 1, characterized in that, The liquid supply mechanism also includes a liquid valve and a heater, both of which are located in the cleaning device; The liquid valve includes a second inlet end and two second outlet ends, and can switch any one of the two second outlet ends to be connected to the second inlet end. The second inlet end is connected to the liquid pump, and one of the second outlet ends is used to output the liquid to the cleaning component. The heater is connected to another second liquid outlet, and the heater is used to heat the liquid to obtain a heated product, and output the heated product to the cleaning component.

5. The surface cleaning equipment according to claim 3, characterized in that, The air intake structure is located on the side of the container cavity, and the air pump pipeline is connected to the air intake structure.

6. The surface cleaning equipment according to claim 3, characterized in that, The air intake structure is located at the bottom of the container cavity.

7. The surface cleaning equipment according to claim 1, characterized in that, The air pump is connected to the container cavity through an output structure, which is located at or near the bottom of the container cavity.

8. The surface cleaning equipment according to claim 1, characterized in that, The liquid supply mechanism also includes: A communicating vessel, wherein the communicating vessel is provided with an intermittent liquid outlet channel and an air inlet channel; The liquid outlet channel includes a first liquid inlet and a first liquid outlet. The first liquid inlet is connected to the output structure, and the first liquid outlet is used to output the liquid. The air intake channel includes an air intake end and an air outlet end. The air intake end is connected to the air pump, and the air outlet end is located in the first liquid inlet end and is connected to the container cavity through the output structure.

9. The surface cleaning equipment according to claim 1, characterized in that, The liquid supply mechanism is located in the cleaning device.

10. A liquid supply method, applied to the surface cleaning equipment of claim 4, characterized in that, The liquid supply method includes: Microbubble water is prepared by controlling the air pump to inject gas into the liquid in the storage container; Controlling the switching on / off state of the liquid valve; and The liquid pump is controlled to output the microbubble water through the liquid valve to the cleaning component or the heater.

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