Floor brush assemblies and surface cleaning equipment

Abstract

The present disclosure provides a floor brush assembly, which is configured to be able to move on a surface to be cleaned so as to clean the surface to be cleaned through the floor brush assembly. The floor brush assembly includes: a frame portion; a suction nozzle; a stirring member; a cover; a liquid dispenser; and a foam dispenser; wherein the nozzle includes a delivery channel and a cutout, the delivery channel is used to deliver cleaning foam, and the delivery channel has a circular channel outlet; the cutout is connected to the circular channel outlet, and the cutout is configured to form a fan-shaped radiation surface when the cleaning foam leaves the cutout; wherein the inner diameter of the delivery channel is smaller than the projected length of the cutout on the cross section of the delivery channel, and the cutout extends beyond the plane where the circular channel outlet is located. The present disclosure also provides a surface cleaning device.

Description

Technical Field

[0001] The present disclosure relates to a floor brush assembly and a surface cleaning device. Background Art

[0002] Conventional floor cleaners clean the floor using a high flow rate of cleaning fluid to completely wet the floor. By wetting the hard floor surface, the cleaning head transfers dust from the floor into the cleaning fluid, which is then removed from the hard floor surface and retained in a recovery reservoir as contaminated cleaning fluid.

[0003] A wet surface cleaner typically includes: a cleaning solution reservoir for containing a cleaning solution; a recovery reservoir for recovering contaminants recovered from the cleaned floor; a motor-driven vacuum source for forming a vacuum flow path from the cleaned floor to the recovery reservoir; a rechargeable battery for providing energy to the various components; and a base station for charging the wet surface cleaner and performing post-cleaning maintenance.

[0004] To improve cleaning performance, conventional wet surface cleaners require adding detergent to the cleaning liquid reservoir. However, the detergent-to-water ratio is difficult to control, and excessive amounts of detergent can cause slippery surfaces. No detergent, or an insufficient amount, results in poor cleaning performance.

[0005] One approach to addressing these technical issues is to apply foam to the surface. For example, Chinese utility model patent publication CN218684168U discloses a cleaning device that sprays foam to clean the surface. However, this device only applies foam to a limited area across the cleaning width, resulting in unsatisfactory cleaning results.

[0006] Based on this, how to effectively increase the width of the foam sprayed by the nozzle has become an urgent problem to be solved. Summary of the Invention

[0007] In order to solve one of the above technical problems, the present disclosure provides a floor brush assembly and a surface cleaning device.

[0008] According to one aspect of the present disclosure, a floor brush assembly is provided, which is configured to be movable on a surface to be cleaned so as to clean the surface by the floor brush assembly. The floor brush assembly includes:

[0009] a frame portion configured to be movable over a surface to be cleaned;

[0010] a suction nozzle defining a dirt inlet to a recovery line;

[0011] an agitating member, the agitating member being adjacent to the suction nozzle and configured to agitate the surface to be cleaned;

[0012] a cover body, the cover body being disposed on the frame portion and configured to partially surround the stirring member;

[0013] a liquid dispenser configured to dispense cleaning liquid to at least one of the agitating member and / or the surface to be cleaned; and

[0014] a foam dispenser configured to dispense foam to at least one of the stirring member and / or the surface to be cleaned; the foam dispenser comprises a foam generator and a nozzle, the nozzle being configured to convey the foam generated by the foam generator outward, the nozzle being disposed on the cover and facing the surface to be cleaned;

[0015] The nozzle includes a conveying channel and a cutout, the conveying channel is used to convey cleaning foam, and the conveying channel has a circular channel outlet; the cutout is connected to the circular channel outlet, and the cutout is configured to form a fan-shaped radiation surface when the cleaning foam leaves the cutout; the inner diameter of the conveying channel is smaller than the projected length of the cutout on the cross section of the conveying channel, and the cutout extends beyond the plane where the circular channel outlet is located.

[0016] According to the floor brush assembly of at least one embodiment of the present disclosure, the nozzle includes a first body and a second body connected to each other, the second body includes the conveying channel, and the incision is arranged to transversely penetrate the first body.

[0017] According to the floor brush assembly of at least one embodiment of the present disclosure, at least a portion of the second body is formed with a groove, and the groove is formed as a part of the cutout.

[0018] According to the floor brush assembly of at least one embodiment of the present disclosure, the delivery channel includes a circular channel outlet, and the projection center of the incision at the circular channel outlet passes through the center of the circular channel outlet.

[0019] According to the floor brush assembly of at least one embodiment of the present disclosure, a hemispherical buffer cavity is provided inside the first body, and the hemispherical buffer cavity is communicated with the incision.

[0020] According to the floor brush assembly of at least one embodiment of the present disclosure, the outer surface of the first body is a hemispherical surface, and the inner surface of the first body is a hemispherical surface, thereby making the first body as a whole have a substantially uniform wall thickness.

[0021] According to the floor brush assembly of at least one embodiment of the present disclosure, the angle range of the fan-shaped radiation surface is 10°-160°.

[0022] According to the floor brush assembly of at least one embodiment of the present disclosure, the diameter of the conveying channel is 2-3 mm.

[0023] According to the floor brush assembly of at least one embodiment of the present disclosure, the width of the cutout is 0.2-0.4 mm.

[0024] According to the floor brush assembly of at least one embodiment of the present disclosure, the depth of the portion of the cutout located in the second body is 0.1-0.3 mm.

[0025] According to at least one embodiment of the present disclosure, the floor brush assembly further includes a first mounting portion for connecting a foam generator.

[0026] According to at least one embodiment of the present disclosure, the floor brush assembly further includes a second mounting portion for fixing the nozzle to the cover of the floor brush assembly.

[0027] According to the floor brush assembly of at least one embodiment of the present disclosure, when the floor brush assembly moves on the surface to be cleaned, the nozzle is perpendicular or substantially perpendicular to the surface to be cleaned.

[0028] According to the floor brush assembly of at least one embodiment of the present disclosure, the plane where the cutout of the nozzle is located is parallel to the lateral direction of the floor brush assembly.

[0029] According to the floor brush assembly of at least one embodiment of the present disclosure, when the floor brush assembly is placed on a surface to be cleaned, the distance between the nozzle and the surface to be cleaned is 15-30 mm.

[0030] According to another aspect of the present disclosure, a surface cleaning device is provided, which includes the above-mentioned floor brush assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0032] Figure 1 Schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0033] Figure 2 It is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure.

[0034] Figure 3 It is a front structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure.

[0035] Figure 4 It is a schematic diagram of the structure of a floor brush assembly according to an embodiment of the present disclosure when viewed from above.

[0036] Figure 5 yes Figure 4 A magnified schematic diagram of part A.

[0037] Figure 6 Schematic diagram of the structure of a nozzle according to one embodiment of the present disclosure.

[0038] Figure 7 It is a schematic cross-sectional structural diagram of a nozzle according to one embodiment of the present disclosure.

[0039] Figure 8 A schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure is shown.

[0040] Figure 9 A schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure is shown.

[0041] Figure 10 A schematic diagram of a frame according to an embodiment of the present disclosure is shown.

[0042] Figure 11 Schematic diagram of the structure of a foam generator according to one embodiment of the present disclosure.

[0043] Figure 12 and Figure 13 It is a schematic structural diagram of a liquid pump according to one embodiment of the present disclosure.

[0044] Figure 14 Schematic diagram of the structure of a mixing chamber according to one embodiment of the present disclosure.

[0045] The specific reference numerals in the figure are:

[0046] 100 handle part

[0047] 200 frame department

[0048] 300 Cleaning fluid storage unit

[0049] 400 Recycling Storage Department

[0050] 401 Recovery Pipeline

[0051] 500 connection

[0052] 600 floor brush assembly

[0053] 610 frame

[0054] 620 nozzle

[0055] 630 stirring element

[0056] 640 cover

[0057] 650 nozzle

[0058] 651 First Subject

[0059] 652 Second Subject

[0060] 653 Incision

[0061] 654 First Installation Department

[0062] 655 Second Installation Department

[0063] 670 Foaming agent storage unit

[0064] 680 Cleaning Fluid Pump

[0065] 690 Water outlet

[0066] 691 Wiper Strip

[0067] 692 Defoaming agent storage unit

[0068] 693 Defoamer Pump

[0069] 694 sealed box

[0070] 800 Foam Generator

[0071] 810 Gas Pump

[0072] 820 Liquid Pump

[0073] 821 Extrusion Components

[0074] 822 hose

[0075] 830 Mixing Chamber

[0076] 831 First Entrance

[0077] 832 Second Entrance

[0078] 833 Mixing Chamber

[0079] 834 Column filter

[0080] 840 drive unit. DETAILED DESCRIPTION

[0081] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0082] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0083] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0084] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0085] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0086] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0087] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0088] Figure 1 Schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0089] like Figure 1 As shown, the surface cleaning device of the present disclosure is used to clean a floor surface to be cleaned. Preferably, the surface cleaning device can perform wet cleaning on the floor surface to be cleaned and recover the liquid after cleaning the floor surface to be cleaned to the surface cleaning device.

[0090] like Figure 1 As shown, structurally, the surface cleaning device may include a handle portion 100 , a frame portion 200 , a cleaning liquid storage portion 300 , a recovery storage portion 400 , a connecting portion 500 , and a floor brush assembly 600 .

[0091] When the surface cleaning device of the present disclosure is in use, the floor brush assembly 600 is configured to be able to move on the floor surface to be cleaned, so as to perform wet cleaning on the floor surface to be cleaned by the floor brush assembly 600 .

[0092] The handle portion 100 is used to operate the surface cleaning device. More specifically, on the one hand, the operator can control the posture of the surface cleaning device by operating the handle portion 100. For example, when the frame portion 200 of the surface cleaning device is in an inclined state (i.e., at an angle of approximately 60° to the surface to be cleaned) or a roughly flat state (i.e., roughly parallel to the surface to be cleaned), the surface cleaning device is in a cleaning mode; when the frame portion 200 of the surface cleaning device is in a vertical state, the surface cleaning device is in a stopped state, or when the surface cleaning device is in a base station, the frame portion 200 of the surface cleaning device is also roughly in a vertical state; on the other hand, physical buttons can be provided on the handle portion 100, so that the surface cleaning device can be controlled by these physical buttons, such as controlling the start and stop of the surface cleaning device and controlling the liquid supply speed and suction power of the surface cleaning device, etc., so as to provide a better user experience of the surface cleaning device.

[0093] The handle portion 100 can be disposed at the upper end of the frame portion 200, so that the surface cleaning device can be operated by operating the handle portion 100. In the present disclosure, the frame portion 200 forms the main force-bearing structure of the surface cleaning device, and the cleaning liquid storage portion 300 and the recovery storage portion 400 of the surface cleaning device can be directly or indirectly fixed to the frame portion 200.

[0094] The cleaning liquid storage portion 300 is formed in the shape of a box to store cleaning liquid in the cleaning liquid storage portion 300. In one embodiment, the cleaning liquid can be purified water. Of course, those skilled in the art will appreciate that a mixture of purified water and detergent can also be stored in the cleaning liquid storage portion 300.

[0095] The frame portion 200 has an accommodation space formed therein, and the cleaning liquid storage portion 300 can be disposed in the accommodation space so that a portion of the outer surface of the cleaning liquid storage portion 300 forms a portion of the outer surface of the surface cleaning device.

[0096] In the present disclosure, the cleaning liquid storage part 300 can be disassembled from the frame part 200 and manually filled with cleaning liquid by the user; of course, the cleaning liquid storage part 300 of the present disclosure can also be filled with cleaning liquid through a cleaning liquid interface provided on the frame part 200.

[0097] Furthermore, when a cleaning liquid interface is provided on the frame portion 200 , the cleaning liquid storage portion 300 may be provided inside the frame portion 200 . In this case, the cleaning liquid storage portion 300 does not form at least a portion of the outer surface of the surface cleaning device.

[0098] In the present disclosure, in order to clean the surface to be cleaned, the cleaning liquid storage part 300 is connected to the floor brush assembly 600 at least through a cleaning liquid pipeline, so as to provide cleaning liquid to the floor brush assembly 600. On the one hand, the surface to be cleaned can be directly cleaned by the cleaning liquid. On the other hand, the cleaning liquid can also be mixed with a detergent to form foam, and the surface to be cleaned can be cleaned by the foam.

[0099] like Figure 1 As shown, the frame portion 200 is formed with a accommodating space, and the recovery storage portion 400 is detachably arranged on the frame portion 200 and is located in the accommodating space, so that when a large amount of liquid is stored in the recovery storage portion 400, the user can remove the recovery storage portion 400, pour out the sewage inside, and clean up the solid waste. At this time, part of the outer surface of the recovery storage portion 400 is formed as part of the outer surface of the surface cleaning device.

[0100] In order to recycle the liquid after cleaning the surface to be cleaned, the recovery storage part 400 can be connected to the floor brush assembly 600 through the recovery pipe 401 . Accordingly, the mixture of sewage and gas (dirt) can be recycled to the recovery storage part 400 via the recovery pipe 401 .

[0101] Accordingly, the surface cleaning device further includes a suction device (not shown), wherein the suction device is capable of generating negative pressure and providing this negative pressure to the recovery storage portion 400, thereby achieving a forced flow of gas and sewage within the recovery pipeline 401. In the present disclosure, the gas exhausted from the suction device can flow to the outside of the surface cleaning device through gaps on a portion of the outer surface of the surface cleaning device.

[0102] The frame portion 200 is connected to the floor brush assembly 600 via the connecting portion 500, so that the frame portion 200 can be pivotally connected to the floor brush assembly 600. In the present disclosure, the frame portion 200 has at least two rotational degrees of freedom relative to the floor brush assembly 600, thereby enabling the user to operate the surface cleaning device more conveniently.

[0103] The structure of the floor brush assembly 600 is described in detail below with reference to the accompanying drawings.

[0104] Figure 2 It is a structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure.

[0105] In the present disclosure, the floor brush assembly 600 may include components such as a frame 610 , a suction nozzle 620 , a stirring member 630 and a cover 640 .

[0106] The frame portion 610 is configured to be connected to the frame portion 200 via the connecting portion 500, and the frame portion 610 is adapted to move on the floor surface to be cleaned. For example, the frame portion 610 may include two rolling wheels. The frame portion 610 may define a receiving cavity for the floor brush assembly, the receiving cavity being located in the front half of the floor brush assembly (with the direction of movement of the surface cleaning device when cleaning the surface to be cleaned as the front), so as to accommodate the stirring member 630 in the receiving cavity. Accordingly, the stirring member 630 is also located in the front half of the floor brush assembly.

[0107] The frame portion 610 is formed with a suction nozzle 620. In the present disclosure, the suction nozzle 620 is disposed adjacent to the stirring member 630 and is located behind the stirring member 630. In the present disclosure, the suction nozzle 620 is connected to the recovery pipe 401 and forms the starting point of the recovery path.

[0108] The stirring member 630 is configured to agitate the floor surface to be cleaned; that is, when the surface cleaning device is performing a cleaning operation or a self-cleaning operation, the stirring member 630 can be driven by the motor to rotate, thereby causing the stirring member 630 to frictionally contact the floor surface to be cleaned and achieve cleaning of the floor surface to be cleaned. During the frictional contact between the stirring member 630 and the floor surface to be cleaned, cleaning liquid can be supplied to the stirring member 630, thereby achieving wet cleaning of the floor surface to be cleaned.

[0109] The cover 640 is disposed on the frame portion 610 and is configured to partially surround the stirring member 630. In one embodiment, the cover 640 also forms a part of the accommodating cavity. In other words, the cover 640 and the frame portion 610 together form the accommodating cavity.

[0110] Figure 3 It is a front structural schematic diagram of a floor brush assembly according to one embodiment of the present disclosure. Figure 4 It is a schematic diagram of the structure of a floor brush assembly according to an embodiment of the present disclosure when viewed from above. Figure 5 yes Figure 4 A magnified schematic diagram of part A.

[0111] More specifically, if Figure 4As shown, the cover body 640 has at least a first edge and a second edge, wherein the second edge of the cover body 640 is an edge close to the frame body 610, and the first edge of the cover body 640 is an edge away from the frame body 610, thereby forming the first edge as a free end.

[0112] More preferably, the first edge is arranged to be located above the horizontal plane passing through the rotation axis of the stirring member 630, so that there is a reasonable height between the first edge and the surface to be cleaned, thereby increasing the coverage area of ​​the foam sprayed by the nozzle.

[0113] The first edge has a roughly planar shape, and the nozzle 650 is installed on the cover body 640 and is located in the middle of the first edge, so that in the transverse direction (the transverse direction is the horizontal direction perpendicular to the front and rear direction), the nozzle 650 is in a central position, so that the nozzle 650 can spray foam in a fan-shaped radiation surface from the center to the edge.

[0114] Figure 6 Schematic diagram of the structure of a nozzle according to one embodiment of the present disclosure. Figure 7 It is a schematic cross-sectional structural diagram of a nozzle according to one embodiment of the present disclosure.

[0115] like Figure 6 and Figure 7 As shown, the nozzle 650 can supply the cleaning foam generated by the foam generator 800 to the surface to be cleaned. That is, the foam generator 800 can generate high-pressure foam, and these high-pressure foams are ejected from the nozzle 650 at a high speed, so that the cleaning foam has a larger coverage area.

[0116] Structurally, the nozzle 650 includes a first body 651 and a second body 652 that are connected to each other; wherein the first body 651 and the second body 652 can be formed integrally or separately and installed or fixed together.

[0117] In this disclosure, Figure 6 and Figure 7 As shown, the first body 651 is formed as a hemispherical thin-walled part, so that the interior of the first body 651 is formed as a hemispherical buffer cavity, that is, the outer surface of the first body 651 is a hemispherical surface, and accordingly, the inner surface of the first body 651 is a hemispherical surface, thereby making the first body 651 have a roughly uniform wall thickness as a whole.

[0118] At least a portion of the second body 652 is formed into a cylindrical shape. For example, one end of the second body 652 connected to the first body 651 is formed into a substantially cylindrical shape. In the present disclosure, preferably, the outer diameter (diameter) of the cylindrical portion of the second body 652 is the same as the diameter of the outer surface of the first body 651.

[0119] The second body 652 includes a delivery channel for delivering cleaning foam, and the delivery channel is connected to the hemispherical buffer cavity; Figure 7 As shown, the delivery channel is formed in a cylindrical shape, and the inner diameter (diameter) of the delivery channel is the same as the diameter of the inner surface of the first body 651, so that the cleaning foam has as little resistance as possible during the delivery process.

[0120] like Figure 6 As shown, the nozzle 650 also includes a cutout 653, through which the cleaning foam is supplied to the surface to be cleaned; in a specific embodiment, the cutout 653 is configured to laterally penetrate the first body 651 and be connected to the hemispherical buffer cavity, so that after the cleaning foam leaves the cutout 653, a fan-shaped radiation surface is formed.

[0121] That is, when processing the cutout 653 of the first body 651, a groove of a certain width and depth can be cut from the vertex of the first body 651 toward the center of the sphere. When the nozzle 650 is installed on the cover 640, the cutout 653 can be kept in the horizontal direction or substantially in the horizontal direction.

[0122] In a more preferred embodiment, at least a portion of the cutout 653 extends to the second body 652 , that is, at least a portion of the second body 652 is formed with a groove, which is formed as a portion of the cutout 653 .

[0123] At this time, the inner diameter of the delivery channel is smaller than the projected length of the cutout 653 on the cross section of the delivery channel, thereby enabling the cutout 653 to have a maximized foam radiation area.

[0124] In this disclosure, Figure 7 As shown, the delivery channel includes a circular channel outlet, and the projection center of the cutout 653 at the circular channel outlet passes through the center of the circular channel outlet, so that the cutout 653 is centrally arranged between the first body 651 and the second body 652.

[0125] When the foam generator 800 operates under the parameters of an air flow rate of 8.6 L / min and a detergent flow rate of 65 ml / min, the angle of the fan-shaped radiation surface is 10°-160°.

[0126] The diameter of the delivery channel is 2-3 mm, and accordingly, the diameter of the hemispherical buffer cavity is the same as the diameter of the delivery channel. In this case, the width W of the cutout 653 is 0.2-0.4 mm, that is, the width of the cutout 653 is between 6% and 20% of the diameter of the delivery channel.

[0127] Moreover, the depth L of the portion of the cutout 653 located in the second body 652 is 0.1-0.3 mm; that is, the depth L of the portion of the cutout 653 located in the second body 652 is between 3% and 15% of the diameter of the delivery channel.

[0128] like Figure 6 and Figure 7 As shown, the nozzle 650 also includes a first mounting portion 654, which is used to connect to the foam generator 800; in one embodiment, the first mounting portion 654 is a plurality of annular barb-like structures formed on the outer surface of the second body 652. At this time, the nozzle 650 can be connected to the foam supply pipeline by inserting the second body 652 into the interior of the foam supply pipeline. At this time, the other end of the foam supply pipeline can be connected to the foam outlet of the foam generator 800. Thus, the foam generator 800 and the nozzle 650 together constitute a foam dispenser, which is configured to dispense foam to at least one of the stirring member and / or the floor surface to be cleaned.

[0129] More preferably, the nozzle 650 further includes a second mounting portion 655 , which is formed as an ear extending outward from the outer surface of the second body 652 . Accordingly, the second mounting portion 655 is used to fix the nozzle 650 to the cover 640 of the floor brush assembly 600 .

[0130] Refer again Figure 5 When the floor brush assembly 600 moves along the surface (plane) to be cleaned, the nozzle 650 is perpendicular or approximately perpendicular to the surface to be cleaned. In other words, the plane where the cutout 653 is located is perpendicular or approximately perpendicular to the surface to be cleaned. Preferably, the distance between the nozzle 650 and the surface to be cleaned is approximately 15-30 mm, and the distance may vary depending on the length of the stirring member 630.

[0131] Figure 8 A schematic diagram of the internal structure of a floor brush assembly according to one embodiment of the present disclosure is shown.

[0132] like Figure 8As shown, the floor brush assembly may further include a foaming agent storage portion 670 for storing a foaming agent. Furthermore, the foaming agent stored in the foaming agent storage portion 670 can be mixed with air to generate cleaning foam via the foam generator 800. In one embodiment, the foaming agent can be a detergent or a liquid with a surfactant added thereto.

[0133] The frame portion 610 further defines a storage chamber, and the foaming agent storage portion 670 is disposed in the storage chamber. On the other hand, in the present disclosure, the foaming agent storage portion 670 may also be disposed in the frame portion 200 .

[0134] like Figure 8 As shown, a sealed box 694 is also provided in the accommodating chamber of the floor brush assembly 600. Electronic components such as a control circuit board can be set in the sealed box 694, thereby facilitating the connection between the control circuit board and the foam generator 800, the cleaning liquid pump 680 and the defoaming agent pump 693.

[0135] Figure 9 A schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure is shown.

[0136] like Figure 9 As shown, the foaming agent storage portion 670 is connected to the nozzle 650 through the foam generator 800 , so that the foaming agent stored in the foaming agent storage portion 670 generates cleaning foam through the foam generator, and is then provided to the nozzle 650 and sprayed out from the nozzle 650 .

[0137] More preferably, the floor brush assembly 600 may further include a cleaning liquid pump 680, the cleaning liquid storage portion 300 is connected to the cleaning liquid pump 680, and the cleaning liquid pump 680 is connected to a water outlet bar 690 (also referred to as a liquid dispenser), thereby enabling the cleaning liquid stored in the cleaning liquid storage portion 300 to be pressurized by the cleaning liquid pump 680 and provided to the water outlet bar 690, and the pressurized cleaning liquid can be sprayed out from the water outlet bar 690, thereby providing the cleaning liquid to the stirring member 630 and / or the surface to be cleaned near the stirring member 630.

[0138] In the present disclosure, the water outlet strip 690 is disposed along the length of the stirring member 630 and is provided with at least one water outlet. Preferably, the water outlet is multiple and arranged in at least one row along the length of the stirring member 630. In the present disclosure, the water outlet strip 690 can be disposed behind the stirring member 630. Thus, when the stirring member 630 rotates and cleans the surface to be cleaned, the cleaning liquid can more fully wet and disperse on the surface of the stirring member 630, thereby improving the cleaning effect on the surface to be cleaned.

[0139] like Figure 4 As shown, the floor brush assembly 600 may further include a wiper bar 691, which is provided on the frame portion 610 and located below the frame portion 610. Preferably, the wiper bar 691 is provided behind the contact area between the stirring member 630 and the surface to be cleaned, so that the sewage on the surface to be cleaned can be collected in time and sucked into the recovery storage portion 400 through the suction nozzle 620.

[0140] In the present disclosure, the floor brush assembly 600 further includes a defoaming agent storage portion 692, which is used to store defoaming agent. That is, when the surface cleaning device of the present disclosure is in use, a mixture of sewage, foam, and air will enter the recovery storage portion 400. If these foams are not removed in time, these foams will accumulate in the recovery storage portion 400, or even overflow to the outside of the recovery storage portion 400, affecting the service life of the suction device; accordingly, in the present disclosure, the defoaming agent provided by the defoaming agent storage portion 692 can reduce the surface tension of the liquid in the recovery storage portion 400, reduce the amount of foam in the recovery storage portion 400, and even completely remove the foam in the recovery storage portion 400.

[0141] The defoaming agent storage section 692 can be arranged in the storage chamber of the frame section 610. In the present disclosure, by arranging the foaming agent storage section 670 and the defoaming agent storage section 692 in the frame section 610, the center of gravity of the entire surface cleaning device can be lowered, making it easier for users to operate the surface cleaning device.

[0142] In the present disclosure, the defoaming agent storage portion 692 is connected to a defoaming agent pump 693, which can provide the defoaming agent to the recovery pipe 401 or the suction nozzle 620 and other components, thereby being able to transport the defoaming agent to the recovery storage portion 400 through suction. On the other hand, the defoaming agent pump 693 can also be directly connected to the recovery storage portion 400 to directly provide the defoaming agent to the recovery storage portion 400.

[0143] Of course, the defoaming agent storage portion 692 may also be directly connected to the recovery pipeline 401 or the suction nozzle 620 through a defoaming agent pipeline.

[0144] Figure 10 A schematic diagram of a frame according to an embodiment of the present disclosure is shown.

[0145] like Figure 10As shown, the frame portion 610 forms the aforementioned suction nozzle 620. The suction nozzle 620 includes a transition chamber, one end of which is formed into an opening, thereby allowing a mixture of sewage, gas, and foam to enter the transition chamber through the opening; correspondingly, the other end of the transition chamber is connected to the recovery pipeline 401, so that the mixture of sewage, gas, and foam can be recovered through the recovery pipeline 401.

[0146] In one embodiment, the cross section of the transition chamber (ie, the cross section perpendicular to the flow direction of the mixture) may be square, and its area may gradually decrease, thereby facilitating the connection between the transition chamber and the recovery line 401 .

[0147] The side wall of the suction nozzle 620 is provided with a pipe connection portion 621. The defoaming agent storage portion 692 is connected to one end of the defoaming agent pipeline, and the other end of the defoaming agent pipeline is connected to the pipe connection portion 621, thereby enabling fluid communication between the suction nozzle 620 and the defoaming agent storage portion 692. In a preferred embodiment, the pipe connection portion 621 is located on the upper wall of the suction nozzle 620, thereby facilitating installation and removal of the defoaming agent pipeline.

[0148] At this time, the defoaming agent pump 693 can be provided in the defoaming agent pipeline, so that the defoaming agent is drawn out from the defoaming agent storage portion 692 and then discharged to the suction nozzle 620 by positive pressure.

[0149] In another embodiment, the defoaming agent pipeline is not provided with a defoaming agent pump 693, but the defoaming agent in the defoaming agent storage portion 692 is sucked into the suction nozzle 620 by the negative pressure suction force in the suction nozzle 620. Accordingly, a solenoid valve is provided on the defoaming agent pipeline, and when negative pressure is generated in the suction nozzle 620, the solenoid valve opens.

[0150] In the present disclosure, the defoaming agent storage section 692 also includes an open hole to allow air to enter the defoaming agent storage section 692 through the open hole, thereby balancing the internal and external pressure difference of the defoaming agent storage section 692, facilitating the suction of the defoaming agent pump 693 or facilitating negative pressure extraction.

[0151] The floor brush assembly of the present disclosure further includes a controller, which may be an electronic component disposed on the control circuit board. The controller is configured to dispense a defoaming agent into the recovery storage portion before the mixture reaches the recovery storage portion, thereby enabling foam to be eliminated as quickly as possible when it is drawn into the recovery storage portion.

[0152] That is to say, when the surface to be cleaned is cleaned by foam, due to the presence of surfactants in the foam, a large amount of foam will be filled in the recovery storage part 400, which on the one hand affects the water level detection of the recovery storage part 400, and on the other hand also affects the gas-solid-liquid separation function of the recovery storage part 400.

[0153] Accordingly, if defoaming agent is present in the recycling storage unit 400, there is no need to add defoaming agent to the recycling storage unit 400, or adding a small amount of defoaming agent may be sufficient. In this case, whether the recycling storage unit 400 is removed from the surface cleaning device can be used as a trigger signal for adding defoaming agent. For example, after the recycling storage unit 400 is removed from the surface cleaning device, the user may pour out the wastewater and clean the recycling storage unit 400. After the cleaned recycling storage unit 400 is reinstalled in the surface cleaning device, defoaming agent must be added to the recycling storage unit 400 as soon as possible.

[0154] During one cleaning operation, the controller can control the defoaming agent pump or the solenoid valve to start at least once, and each start-up works for a predetermined time, such as 1 second, to complete the addition of the defoaming agent.

[0155] The structure of the foam generator will be described in detail below with reference to the accompanying drawings.

[0156] Figure 11 Schematic diagram of the structure of a foam generator according to one embodiment of the present disclosure.

[0157] like Figure 11 As described above, the present disclosure provides a foam generator 800 , which includes a gas pump 810 , a liquid pump 820 , a mixing chamber 830 and other structures.

[0158] The gas pump 810 is in communication with the atmosphere to directly draw gas from the atmosphere and can provide gas to the mixing chamber 830 , for example, gas with a high flow rate.

[0159] In one embodiment, the gas pump 810 can be driven by a driving device 840 to generate high-flow gas. That is, the driving device 840 is in transmission connection with the gas pump 810, and when the driving device 840 is in a rotating state, the gas pump 810 can be in a working state and continuously output high-flow gas to the outside.

[0160] The gas pump 810 may be a centrifugal pump, a plunger pump, an impeller pump, a diaphragm pump, or the like. The present disclosure does not limit the type of the gas pump 810 as long as the gas pump 810 can generate high-pressure gas.

[0161] Figure 12 and Figure 13It is a schematic structural diagram of a liquid pump according to one embodiment of the present disclosure.

[0162] like Figure 12 and Figure 13 As shown, the liquid pump 820 is connected to the supply tank for providing liquid.

[0163] The liquid pump 820 is preferably a peristaltic pump; Figure 13 The structure of a standardized peristaltic pump is shown. The extrusion component 821 can be driven to rotate. When the extrusion component 821 rotates, the hose 822 is squeezed to deform the hose 822 and realize liquid transportation in the hose 822.

[0164] Those skilled in the art should know that the peristaltic pump is only a preferred implementation form; other liquid pumps, such as impeller pumps and plunger pumps, may also be selected in the present disclosure.

[0165] Figure 14 Schematic diagram of the structure of a mixing chamber according to one embodiment of the present disclosure.

[0166] like Figure 11 As shown, the gas pump 810 and the liquid pump 820 are both connected to the mixing chamber 830, and enable the mixing chamber 830 to receive the gas generated by the gas pump 810 and the liquid generated by the liquid pump 820; and enable the gas and liquid to mix in the mixing chamber 830 to generate foam.

[0167] In a specific structure, such as Figure 14 As shown, the mixing chamber 830 includes a first inlet 831 , a second inlet 832 , a mixing chamber 833 and other structures.

[0168] The first inlet 831 is used to enter the liquid; in the present disclosure, the first inlet 831 can be connected to the liquid pump 820; the second inlet 832 is used to enter the gas; for example, the second inlet 832 is connected to the gas pump. The mixing chamber 833 is used to mix the liquid and the gas, wherein a preset angle is formed between the first inlet 831 and the second inlet 832; in a preferred embodiment, the first inlet 831 and the second inlet 832 are vertically distributed, for example Figure 14 As shown in the figure, the first inlet 831 is roughly horizontal, and the second inlet 832 is roughly vertical. At this time, the second inlet 832 is perpendicular to or roughly perpendicular to the flow direction of the liquid in the mixing chamber 833. Such an arrangement can be more conducive to mixing gas into the liquid, thereby forming rich foam.

[0169] In a preferred embodiment, the mixing chamber 830 further includes a columnar filter 834, and the columnar filter 834 includes one or more slender filter holes. The mixture of gas and liquid is transported to the foam outlet through the slender filter holes and discharged from the foam outlet.

[0170] In the present disclosure, the speed of foam output can be controlled by adjusting the rotation speed of the driving device.

[0171] The foam generator 800 of the present disclosure further includes a driving device 840, which is used to drive the gas pump 810 and the liquid pump 820, thereby enabling the gas pump 810 and the liquid pump 820 to be in an operating state. In a preferred embodiment, the gas pump 810 and the liquid pump 820 are driven by the same driving device 840, and the gas pump 810 and the liquid pump 820 are located on the same side of the driving device 840.

[0172] Thus, a single drive device 840 simultaneously drives both the gas pump 810 and the liquid pump 820. The peristaltic pump configuration solves the problem of solution adhesion and water loss. The gas pump utilizes a diaphragm pump to achieve high flow rates in a small volume, resulting in a compact and low-cost pump. Furthermore, the separate configuration of the gas pump 810 and liquid pump 820 significantly increases fluid flow, allowing the disclosed foam generator to significantly improve fluid flow.

[0173] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0174] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0175] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A floor brush assembly, configured to be able to move on a surface to be cleaned, so as to clean the surface to be cleaned by the floor brush assembly, characterized in that: The floor brush assembly comprises: a frame portion configured to be movable over a surface to be cleaned; a suction nozzle defining a dirt inlet to a recovery line; an agitating member, the agitating member being adjacent to the suction nozzle and configured to agitate the surface to be cleaned; a cover body, the cover body being disposed on the frame portion and configured to partially surround the stirring member; a liquid dispenser configured to dispense cleaning liquid to at least one of the agitating member and / or the surface to be cleaned; and a foam dispenser configured to dispense foam to at least one of the stirring member and / or the surface to be cleaned; the foam dispenser comprises a foam generator and a nozzle, the nozzle being configured to convey the foam generated by the foam generator outward, the nozzle being disposed on the cover and facing the surface to be cleaned; The nozzle includes a delivery channel and a cutout, the delivery channel is used to deliver cleaning foam, and the delivery channel has a circular channel outlet; the cutout is connected to the circular channel outlet, and the cutout is configured to form a fan-shaped radiation surface when the cleaning foam escapes from the cutout; the inner diameter of the delivery channel is smaller than the projected length of the cutout on the cross section of the delivery channel, and the cutout extends beyond the plane where the circular channel outlet is located; The nozzle includes a first body and a second body connected to each other, the second body includes the delivery channel, and the incision is arranged to pass through the first body transversely; at least a portion of the second body is formed with a groove, and the groove forms part of the incision.

2. The floor brush assembly according to claim 1, characterized in that: The delivery channel comprises a circular channel outlet, and the projection center of the incision at the circular channel outlet passes through the center of the circular channel outlet.

3. The floor brush assembly according to claim 1, characterized in that: A hemispherical buffer cavity is provided inside the first body, and the hemispherical buffer cavity is communicated with the incision.

4. The floor brush assembly according to claim 1, wherein: The outer surface of the first body is a hemispherical surface, and the inner surface of the first body is a hemispherical surface, so that the first body as a whole has a substantially uniform wall thickness.

5. The floor brush assembly according to claim 1, wherein: The angle range of the fan-shaped radiation surface is 10°-160°.

6. The floor brush assembly according to claim 1, wherein: The diameter of the delivery channel is 2-3 mm.

7. The floor brush assembly according to claim 1, wherein: The width of the incision is 0.2-0.4 mm.

8. The floor brush assembly according to claim 1, wherein: The depth of the portion of the cutout located in the second body is 0.1-0.3 mm.

9. The floor brush assembly according to claim 1, wherein: The utility model further comprises a first mounting portion, wherein the first mounting portion is used for connecting the foam generator.

10. The floor brush assembly according to claim 1, wherein: It also includes a second mounting portion, which is used to fix the nozzle to the cover of the floor brush assembly.

11. The floor brush assembly according to claim 1, wherein: When the floor brush assembly moves on the surface to be cleaned, the nozzle is perpendicular or approximately perpendicular to the surface to be cleaned.

12. The floor brush assembly according to claim 1, wherein: The plane where the cutout of the nozzle is located is parallel to the transverse direction of the floor brush assembly.

13. The floor brush assembly according to claim 1, wherein: When the floor brush assembly is placed on the surface to be cleaned, the distance between the nozzle and the surface to be cleaned is 15-30 mm.

14. A surface cleaning device, characterized in that The invention comprises the floor brush assembly according to any one of claims 1 to 13.

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