Vacuum cleaner floor brush and vacuum cleaner

Abstract

The present invention discloses a vacuum cleaner floor brush and a vacuum cleaner, wherein the vacuum cleaner floor brush comprises: a floor brush main unit; a spraying device, comprising an infusion pipeline and a liquid extraction pump, the infusion pipeline comprising a liquid inlet end and a liquid outlet end, a sensing device for sensing cleaning liquid provided on the infusion pipeline, and the liquid extraction pump connected in series to the infusion pipeline; a control circuit, electrically connected to the sensing device and the liquid extraction pump, respectively, for controlling the liquid extraction pump to switch between a first liquid extraction mode and a second liquid extraction mode according to a sensing signal fed back by the sensing device, wherein the liquid extraction speed in the second liquid extraction mode is greater than the liquid extraction speed in the first liquid extraction mode. In the technical solution proposed by the present invention, the sensing device is used to detect whether there is cleaning liquid in the infusion pipeline. When it is detected that there is no cleaning liquid, the control circuit controls the liquid extraction pump to operate in the second liquid extraction mode, and the cleaning liquid in the liquid storage tank will be quickly sucked into the spraying component, so that the user does not need to wait for a long time when starting to use the vacuum cleaner floor brush, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to a vacuum cleaner floor brush and a vacuum cleaner. Background Art

[0002] Currently, commercially available vacuum cleaner floor brushes all have a liquid level detector mounted on the liquid supply tank. When the liquid level in the tank falls below a preset level, the water level detector detects that the tank is empty and sends a feedback to the controller, which then stops the pump and the vacuum cleaner floor brush from spraying cleaning fluid. The brush can only resume spraying cleaning fluid after the tank is refilled until the level detector detects the presence of cleaning fluid.

[0003] However, when the existing vacuum cleaner floor brush is used for the first time, if cleaning liquid is added to the liquid storage tank of the vacuum cleaner floor brush, the liquid level detection device on the liquid storage tank will detect it, and the liquid pump will pump the cleaning liquid to the liquid spray pipe at a fixed pumping speed. Only after the liquid spray pipe is filled with cleaning liquid will the cleaning liquid be sprayed onto the ground from the liquid spray port. As a result, the liquid discharge speed of the vacuum cleaner floor brush is slow when it is first used, and a long waiting time is required after it is turned on and used. Summary of the Invention

[0004] The main purpose of the present invention is to provide a vacuum cleaner floor brush, which aims to solve the technical problem that the existing vacuum cleaner floor brush has a slow liquid discharge speed when it is turned on and used.

[0005] To achieve the above-mentioned purpose, the vacuum cleaner floor brush proposed by the present invention includes:

[0006] Floor brush host;

[0007] A spraying device is provided on the floor brush host, the spraying device includes an infusion pipeline and a liquid extraction pump, the infusion pipeline includes a liquid inlet end for connecting to a liquid storage tank and a liquid outlet end for connecting to a spraying component, the infusion pipeline is provided with a sensing device for sensing the cleaning liquid, and the liquid extraction pump is connected in series to the infusion pipeline;

[0008] a control circuit, provided in the floor brush host, the control circuit being electrically connected to the sensing device and the liquid pump, respectively, and being configured to control the liquid pump to switch between a first liquid pumping mode and a second liquid pumping mode according to a sensing signal fed back by the sensing device, wherein the liquid pumping speed in the second liquid pumping mode is greater than the liquid pumping speed in the first liquid pumping mode;

[0009] When the liquid storage tank is filled with cleaning liquid, if the sensing device detects that the cleaning liquid in the infusion pipeline is lower than a preset liquid level, the control circuit controls the liquid pump to operate in the second liquid pumping mode; if the sensing device detects that the cleaning liquid in the infusion pipeline is equal to or higher than the preset liquid level, the control circuit controls the liquid pump to operate in the first liquid pumping mode.

[0010] In some embodiments, the liquid pump operates in the first liquid pumping mode, so that after the cleaning liquid in the liquid storage tank is pumped out, and the sensing device detects that the cleaning liquid in the infusion line is lower than a preset liquid level, the liquid pump is controlled by the control circuit to stop running or continue to operate in the first liquid pumping mode.

[0011] In some embodiments, the first pumping mode includes a first sub-mode and a second sub-mode, and the pumping speed in the second sub-mode is greater than the pumping speed in the first sub-mode;

[0012] The vacuum cleaner floor brush also includes an identification component, which is electrically connected to the control circuit and is used to sense external signals and send them to the control circuit. The control circuit controls the liquid pump to switch between the first sub-mode and the second sub-mode according to the external signals.

[0013] In some embodiments, the control circuit controls the liquid pump to operate in the second liquid pumping mode until a preset amount of cleaning liquid is injected into the spray component, and then the control circuit controls the liquid pump to switch from the second liquid pumping mode to the first liquid pumping mode.

[0014] In some embodiments, the sensing device is disposed between the liquid pump and the liquid outlet;

[0015] Alternatively, the sensing device is disposed between the liquid inlet end and the liquid pump.

[0016] In some embodiments, the sensing device includes a first shell and a sensor. A first liquid channel for communicating with the infusion pipeline is formed in the first shell, and the sensor is installed on the outer wall of the first shell corresponding to the first liquid channel.

[0017] In some embodiments, the infusion circuit comprises:

[0018] a liquid inlet pipe section, one end of which is the liquid inlet end and the other end of which is connected to the suction port of the liquid pump;

[0019] a connecting pipe section, one end of which is connected to the discharge outlet of the liquid pump, and the other end of which is connected to one end of the first liquid channel;

[0020] a liquid outlet pipe section, one end of which is connected to the other end of the first liquid channel, and the other end of which is the liquid outlet end;

[0021] Alternatively, the infusion pipeline comprises:

[0022] a liquid inlet pipe section, one end of which is the liquid inlet end and the other end of which is connected to one end of the first liquid channel;

[0023] a connecting pipe section, one end of which is connected to the other end of the first liquid channel, and the other end of which is connected to the suction port of the liquid pump;

[0024] The liquid outlet pipe section has one end connected to the discharge outlet of the liquid pump and the other end being the liquid outlet end.

[0025] In some embodiments, the vacuum cleaner floor brush also includes a spraying component, and the spraying component also includes a second shell, the second shell is provided with the liquid inlet and several liquid outlets, the liquid inlet is connected to the liquid outlet end, and a second liquid channel is formed in the second shell, the second liquid channel connects the liquid inlet and the several liquid outlets, and the several liquid outlets are evenly spaced and distributed on the same side of the second shell.

[0026] In some embodiments, the second liquid channel includes a main channel and a plurality of branch channels connected to the main channel, the liquid inlet is connected to the main channel, and each of the branch channels is connected to at least one of the liquid outlets.

[0027] In some embodiments, the second shell includes a bottom shell and a cover plate installed on the bottom shell, the multiple liquid outlets are arranged on the outer wall of the bottom shell, a groove is provided in the bottom shell, the cover plate covers and seals the notch of the groove, the cover plate cooperates with the groove to form the second liquid channel, and the inner side of the bottom shell is also provided with a sink adapted to the cover plate, the cover plate is installed in the sink, and the groove is provided on the bottom wall of the sink.

[0028] In some embodiments, the vacuum cleaner floor brush further includes a liquid storage tank, a liquid outlet joint is provided at the bottom of the liquid storage tank, and the liquid inlet end is connected to the liquid outlet joint.

[0029] In some embodiments, the floor brush host includes an upper cover, a first groove is formed on the surface of the upper cover, a liquid inlet is formed on the bottom wall of the first groove, the liquid storage tank is detachably connected to the upper cover, and the liquid outlet connector is connected to the liquid inlet;

[0030] A sealing member is disposed in the first groove, and the sealing member forms an annular inclined surface. A deformation cavity is formed between the annular inclined surface and the groove wall of the first groove. The liquid outlet joint is inserted into the sealing member and abuts against the annular inclined surface, so that the annular inclined surface is deformed toward the deformation cavity.

[0031] In some embodiments, a step is provided inwardly on one end of the annular inclined surface close to the liquid inlet, and the step abuts against the groove wall of the first groove and is located at the periphery of the liquid inlet;

[0032] The sealing member also includes a connecting end extending along the step in a direction away from the liquid outlet joint, the connecting end including a first connecting end and a second connecting end connected in a bent manner, the first connecting end being provided with a through hole connected to the first groove, the first connecting end being accommodated in the liquid inlet and abutting against the wall surface of the liquid inlet, and the second connecting end being located at the periphery of the liquid inlet and abutting against the outer bottom wall of the first groove.

[0033] In some embodiments, the vacuum cleaner floor brush further includes a liquid inlet joint, the liquid inlet joint abuts against a surface of the second connection end away from the liquid outlet joint, and an opening of the liquid inlet joint is connected to the liquid inlet.

[0034] In some embodiments, one end of the annular inclined surface away from the liquid inlet is bent outward and extended to form a connecting portion, the upper cover is provided with a second groove surrounding the first groove, and the connecting portion is accommodated in the second groove.

[0035] In some embodiments, the liquid storage box includes a box body and a box cover, a liquid storage cavity is formed inside the box body, the box cover is provided with a liquid filling port and a sealing assembly for sealing the liquid filling port, and the liquid filling port and the liquid outlet joint are both connected to the liquid storage cavity.

[0036] In some embodiments, the floor brush host also includes a base, which is connected to the upper cover to form a accommodating cavity, a driving device is provided in the accommodating cavity, and a floor wiping piece is provided at the bottom of the base, and the floor wiping piece is connected to the output execution end of the driving device, and the driving device is used to drive the floor wiping piece to reciprocate along a preset direction.

[0037] In some embodiments, a bayonet is provided on one side of the liquid storage tank close to the front end of the floor brush host, and a tenon is protruded from the front side wall of the upper cover corresponding to the bayonet; a hook is protruded from the bottom wall of the box body, and the hook includes a third connecting portion and a fourth connecting portion that are connected to each other and intersecting, the third connecting portion is also connected to the bottom wall of the box body, the third connecting portion and the fourth connecting portion enclose the bayonet, and the fourth connecting portion is inclined relative to the bottom wall of the box body;

[0038] And / or, a accommodating groove is provided on one side of the liquid storage tank close to the rear end of the floor brush host, and a telescopic tongue is provided in the accommodating groove; a docking groove is provided on the rear side of the upper cover corresponding to the telescopic tongue, and the telescopic tongue is used to extend into the docking groove to connect the liquid storage tank and the upper cover.

[0039] In some embodiments, the driving device includes at least two groups of driving components, and the at least two groups of driving components are arranged at intervals and are respectively connected to the floor-cleaning members, so that the floor-cleaning members make reciprocating motion on the ground when vacuuming.

[0040] In some embodiments, the floor wiping members include two, the two floor wiping members are spaced apart, and the driving assembly includes

[0041] A connecting shaft comprising a first journal and a second journal connected in an offset manner;

[0042] A first crank, one end of which is rotatably mounted on the first journal and the other end of which is hingedly connected to the floor wiping member; and

[0043] One end of the second crank is rotatably sleeved on the second shaft journal, and the other end is hinged to the other floor wiping member.

[0044] In some embodiments, the driving device also includes a driving motor, the connecting shaft is formed with a first axial hole passing through the first shaft neck and the second shaft neck, the first axial hole deviates from the center of the first shaft neck and the second shaft neck, and the connecting shaft is sleeved on the motor shaft of the driving motor through the first axial hole.

[0045] In some embodiments, the drive components include two, the drive motor is a dual-axis motor, the two motor shafts of the drive motor are respectively facing one of the drive components, the dual-axis motor is located between the two drive components, and the connecting shafts of the two drive components are respectively sleeved on the two motor shafts of the dual-axis motor through their respective first shaft holes.

[0046] In some embodiments, an air inlet is provided at the bottom of the floor brush host, and the floor brush host is provided with a dust collection duct connected to it and communicated with the air inlet. A sealing component is provided in the air duct of the air inlet, and the sealing component blocks the rear end of the air inlet so that the airflow from the air inlet is reflected by the sealing component and flows into the dust collection duct.

[0047] In some embodiments, the base includes a bottom plate and side plates connected to the bottom plate and extending toward the ground. The bottom plate bends and extends toward the ground at the air inlet to form a baffle. The air inlet is located between the baffle and the side plates. The baffle and the side plates cooperate to form an air duct of the air inlet.

[0048] In some embodiments, the sealing assembly includes a mounting member and a guide member provided on the mounting member, the mounting member is detachably connected to the baffle, one end of the guide member abuts the end wall of the open end of the dust collection pipe, and the other end contacts the ground during dust collection.

[0049] In some embodiments, the dust collection duct comprises:

[0050] A tube body, with both ends of the tube body open, a dust suction duct extending from one end to the other end of the tube body, and at least one opening formed on the outer wall of the tube body;

[0051] At least one cover is provided on the tube body, and the cover covers the opening.

[0052] In some embodiments, the vacuum cleaner floor brush further comprises:

[0053] A base is detachably connected to the floor-cleaning member, and a side of the base facing away from the floor-cleaning member is used for installing a cleaning cloth.

[0054] In some embodiments, the vacuum cleaner floor brush also includes a rotary joint, which includes a first joint and a second joint. The second joint is rotatably connected to one end of the first joint, and the other end of the first joint is rotatably connected to the floor brush host. The first joint can rotate relative to the floor brush host in a first direction, and the second joint can rotate relative to the first joint in a second direction, and the first direction is different from the second direction.

[0055] The present invention further provides a vacuum cleaner, comprising a vacuum cleaner body and the aforementioned vacuum cleaner floor brush, wherein the vacuum cleaner floor brush is connected to the vacuum cleaner body.

[0056] In the technical solution proposed by the present invention, a sensing device is used to detect whether there is cleaning liquid in the infusion pipeline. When it is detected that there is no cleaning liquid, the control circuit controls the liquid pump to operate in the second liquid pumping mode. The cleaning liquid in the liquid storage tank will be quickly sucked into the spraying component, so that the user does not need to wait for a long time when turning on the vacuum cleaner floor brush, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 Schematic diagram of the structure of a vacuum cleaner floor brush according to one embodiment of the present invention;

[0058] Figure 2 for Figure 1 Schematic diagram of the internal structure of the floor brush of a medium vacuum cleaner;

[0059] Figure 3 This is a schematic structural diagram of a spraying device in one embodiment of the present invention;

[0060] Figure 4 A schematic structural diagram of a spraying device in another embodiment of the present invention;

[0061] Figure 5 Schematic diagram of circuit connection of a floor brush of a vacuum cleaner according to one embodiment of the present invention;

[0062] Figure 6 for Figure 1 Schematic diagram of the structure of the induction device;

[0063] Figure 7 for Figure 1 Schematic diagram of the partial structure of the bottom of the floor brush of the medium vacuum cleaner;

[0064] Figure 8 for Figure 1 Schematic diagram of part of the structure inside the floor brush of the vacuum cleaner;

[0065] Figure 9 for Figure 7 and Figure 8 A schematic diagram of the structure of the spraying components;

[0066] Figure 10 for Figure 9 Schematic diagram of the bottom structure of the spraying component;

[0067] Figure 11 for Figure 9 A schematic structural diagram of the bottom shell of the spraying component;

[0068] Figure 12 for Figure 9 A schematic structural diagram of the cover plate of the spraying component;

[0069] Figure 13 for Figure 9 Cross-sectional view of the spraying components;

[0070] Figure 14 for Figure 9 A cross-sectional view of the spraying component in FIG. 1 being mounted on the base of the vacuum cleaner floor brush;

[0071] Figure 15 for Figure 1 An exploded view of a vacuum cleaner floor brush in an embodiment;

[0072] Figure 16 for Figure 15 Schematic diagram of the bottom structure of the middle liquid storage tank;

[0073] Figure 17 for Figure 15 A schematic diagram of the partial structure of the upper cover of the floor brush of the middle vacuum cleaner;

[0074] Figure 18 for Figure 17 A partial enlarged schematic diagram of point A in the middle;

[0075] Figure 19 for Figure 15 A schematic diagram of the upper cover and partial structure of the liquid storage tank of the middle vacuum cleaner;

[0076] Figure 20 for Figure 19 A partial enlarged schematic diagram of point B in the middle;

[0077] Figure 21 for Figure 20 Schematic diagram of the structure of the middle seal;

[0078] Figure 22 for Figure 21 Cross-sectional view of the middle seal;

[0079] Figure 23 for Figure 16 Exploded view of the middle fluid storage tank;

[0080] Figure 24 for Figure 15 A schematic diagram of the upper cover and partial structure of the liquid storage tank of the middle vacuum cleaner;

[0081] Figure 25 for Figure 24 A partial enlarged schematic diagram of point C in the middle;

[0082] Figure 26 for Figure 1 Schematic diagram of the structure of the middle ground brush host;

[0083] Figure 27 for Figure 26 A partial enlarged schematic diagram of point D in the middle;

[0084] Figure 28 for Figure 15 A schematic diagram of the upper cover and partial structure of the liquid storage tank of the middle vacuum cleaner;

[0085] Figure 29 for Figure 28 A partial enlarged schematic diagram of point E in the middle;

[0086] Figure 30 for Figure 15 Schematic diagram of the internal structure of the base of the middle floor brush host;

[0087] Figure 31 for Figure 15 Schematic diagram of the bottom structure of the base of the middle floor brush host;

[0088] Figure 32 for Figure 30 Schematic diagram of the structure of the middle drive device;

[0089] Figure 33 for Figure 32 Exploded view of the mid-drive assembly;

[0090] Figure 34 for Figure 1 Cross-section of the floor brush of a medium vacuum cleaner;

[0091] Figure 35 for Figure 34 A partial enlarged schematic diagram of point F in the middle;

[0092] Figure 36 for Figure 35 Cross-section of the structure at the wind tunnel;

[0093] Figure 37 for Figure 1 Schematic diagram of the structure of the rotary joint;

[0094] Figure 38 Schematic diagram of the structure of the dust collection pipeline in the present invention;

[0095] Figure 39 for Figure 38 Exploded view of the dust collection duct;

[0096] Figure 40 for Figure 38 Cross-section of the dust collection duct;

[0097] Figure 41 Schematic diagram of the structure of the floor wiping member, base and cleaning cloth in the present invention;

[0098] Figure 42 It is a structural schematic diagram of the liquid storage box in the present invention;

[0099] Figure 43 for Figure 42 Exploded view of the middle liquid storage tank;

[0100] Figure 44 for Figure 42 A cross-sectional view of the middle liquid storage tank;

[0101] Figure 45 Schematic diagram of the structure of a vacuum cleaner floor brush in another embodiment of the present invention.

[0102] Explanation of Figure Numbers

[0103]

[0104]

[0105] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0106] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0107] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0108] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0109] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0110] See also Figure 1-5 The present invention provides a vacuum cleaner floor brush, which includes:

[0111] Floor brush host 1;

[0112] The spraying device 2 is provided on the floor brush main unit 1. The spraying device 2 includes an infusion pipeline 21 and a liquid pump 22. The infusion pipeline 21 includes a liquid inlet end 211 for connecting to the liquid storage tank 5 and a liquid outlet end 212 for connecting to the spraying component 4. The infusion pipeline 21 is provided with a sensing device 23 for sensing the cleaning liquid. The liquid pump 22 is connected in series to the infusion pipeline 21.

[0113] The control circuit 3 is provided in the floor brush host 1. The control circuit 3 is electrically connected to the sensing device 23 and the liquid pump 22, respectively, and is used to control the liquid pump 22 to switch between the first liquid pumping mode and the second liquid pumping mode according to the sensing signal fed back by the sensing device 23. The liquid pumping speed in the second liquid pumping mode is greater than the liquid pumping speed in the first liquid pumping mode.

[0114] When the liquid reservoir is filled with cleaning liquid, if the sensing device detects that the cleaning liquid in the infusion line is below a preset level, the control circuit controls the pump to operate in the second pumping mode. If the sensing device detects that the cleaning liquid in the infusion line is equal to or above the preset level, the control circuit controls the pump to operate in the first pumping mode. The cleaning liquid can be water, soapy water, laundry detergent, liquid laundry detergent, effervescent tablet solution, etc.

[0115] The vacuum cleaner floor brush using the spraying device 2 of this embodiment is used to spray cleaning liquid: when the sensing device 23 detects and feedbacks that there is cleaning liquid, it means that there is cleaning liquid at the position where the sensing device 23 is set in the infusion pipeline 21, and the product is displayed as having cleaning liquid. The liquid pump 22 works to make the cleaning liquid in the liquid storage tank 5 flow to the spraying component 4 through the infusion pipeline 21, and is sprayed from the spraying component 4 to the surface to be cleaned (floor, wall, etc.) or cleaning components (such as floor brushes, roller brushes, etc.); when the sensing device 23 detects and feedbacks that there is no cleaning liquid, there is no cleaning liquid at the position where the sensing device 23 is set in the infusion pipeline 21, and the product is displayed as having no cleaning liquid, which means that the cleaning liquid in the liquid storage tank 5 is used up, and there is no cleaning liquid in the part of the infusion pipeline 21 between the sensing device 23 and the liquid inlet end 211. At this time, the liquid pump 22 can stop working and the spraying of cleaning liquid is completed. After the product finishes spraying the cleaning liquid, there is no cleaning liquid in the portion of the infusion pipeline 21 between the sensing device 23 and the liquid inlet end 211. The cleaning liquid in the portion of the infusion pipeline 21 between the sensing device 23 and the liquid outlet end 212 is also partially carried out by the inertia of the liquid pump 22 when it stops. The amount of cleaning liquid remaining in the entire infusion pipeline 21 is very small.

[0116] After the cleaning liquid is replenished in the liquid storage tank 5 and it is used again, the sensing device 23 detects and feedbacks that there is no cleaning liquid. At this time, the liquid pump 22 can be controlled to switch to a large amount of cleaning liquid suction mode (second liquid suction mode), so that the cleaning liquid in the liquid storage tank 5 is instantly sucked to the position of the sensing device 23. The sensing device 23 then detects and feedbacks that there is cleaning liquid, and then controls the liquid pump 22 to switch back to the normal cleaning liquid suction mode (first liquid suction mode). In this way, the product can be started and used at the beginning, and can instantly reach the normal cleaning liquid spraying state, eliminating the time of waiting for the cleaning liquid to be discharged. Among them, the second liquid suction mode can be a continuous suction mode, and the first liquid suction mode can be an intermittent suction mode, that is, the liquid pump 22 is periodically turned on and off. It is understandable that when the vacuum cleaner floor brush is turned on and used, the sensing device 23 detects and feedbacks that there is no cleaning liquid. At this time, the liquid pump 22 can be controlled to operate in a large amount of cleaning liquid suction mode (second liquid suction mode), so that the cleaning liquid in the liquid storage tank 5 is instantly sucked to the position of the sensing device 23.

[0117] The spraying device 2 of this embodiment is configured such that a sensing device 23 for sensing cleaning liquid is arranged on the infusion pipeline 21 between the liquid storage tank 5 and the spraying component 4. When the cleaning liquid in the liquid storage tank 5 is used up, the sensing device 23 can still detect the presence of cleaning liquid, and the liquid pump 22 will continue to operate until there is no cleaning liquid at the sensing device 23, at which time the liquid pump 22 will stop operating. At this time, the cleaning liquid between the sensing device 23 and the liquid inlet end 211 has been sprayed out, and at least a part of the cleaning liquid between the sensing device 23 and the liquid outlet end 212 is also carried out by the inertia of the liquid pump 22 when it stops. Therefore, most of the cleaning liquid in the pipeline between the liquid storage tank 5 and the spraying component 4 is sprayed out, and the amount of residual cleaning liquid is very small, which effectively avoids the situation where there is too much residual cleaning liquid in the pipeline between the liquid storage tank 5 and the spraying component 4 (i.e., the infusion pipeline 21), which produces odor after being left for a long time.

[0118] In some embodiments, the vacuum cleaner floor brush proposed by the present invention detects whether there is cleaning liquid in the infusion pipeline 21 through the sensing device 23. When it is detected that there is no cleaning liquid, such as when the vacuum cleaner floor brush is turned on and used, the control circuit 3 controls the liquid pump 22 to operate in the second liquid pumping mode, and the cleaning liquid in the liquid storage tank 5 will be quickly sucked to the sensing device 23, so that the cleaning liquid will be quickly sucked to the spraying component 4, so that the user does not need to wait for a long time when turning on the vacuum cleaner floor brush, thereby improving the user experience. When the presence of cleaning liquid is detected, the control circuit 3 controls the liquid pump 22 to operate in the first liquid pumping mode, so that the spraying component 4 evenly sprays the cleaning liquid to the outside. Among them, lower than the preset liquid level may mean that there is no cleaning liquid in the infusion pipeline 21 or the liquid level of the cleaning liquid in the infusion pipeline 21 is lower than the position of the sensing device 23, and higher than or equal to the preset liquid level may mean that the liquid level of the cleaning liquid in the infusion pipeline 21 is higher than or equal to the position of the sensing device 23. For example, if the infusion pipeline 21 between the liquid storage tank 5 and the sensing device 23 is filled with cleaning liquid, at this time, there is no cleaning liquid in the liquid storage tank 5, or it is filled with cleaning liquid or is full of cleaning liquid.

[0119] In some embodiments, the liquid pump 22 proposed in the present invention operates in the first liquid pumping mode, so that after the cleaning liquid in the liquid storage tank 5 is pumped out, and the sensing device 23 detects that the cleaning liquid in the infusion pipeline 21 is lower than the preset liquid level, the liquid pump 22 is controlled by the control circuit 3 to stop running or continue to operate in the first liquid pumping mode.

[0120] In this embodiment, when the vacuum cleaner floor brush is turned on and maintained in the first liquid extraction mode, if the cleaning liquid in the liquid storage tank 5 is completely extracted and the sensing device 23 detects that there is no cleaning liquid in the infusion pipeline 21, the control circuit 3 can control the liquid extraction pump 22 to stop operating to reduce the power consumption of the vacuum cleaner floor brush. Of course, the control circuit 3 can also continue to control the liquid extraction pump 22 to operate in the first liquid extraction mode, at which time the liquid extraction pump 22 is in the air extraction state.

[0121] In some embodiments, see Figure 45 The first liquid pumping mode proposed in the present invention includes a first sub-mode and a second sub-mode, and the liquid pumping speed in the second sub-mode is greater than the liquid pumping speed in the first sub-mode; the vacuum cleaner floor brush also includes an identification component 300, which is electrically connected to the control circuit and is used to sense external signals and send them to the control circuit. The control circuit controls the liquid pump to switch between the first sub-mode and the second sub-mode according to the external signal.

[0122] In this embodiment, the first liquid extraction mode includes a first sub-mode and a second sub-mode. When the floor brush of the vacuum cleaner sprays cleaning liquid to clean the floor, the user can trigger a contact or non-contact control signal through the identification component 300 and send it to the control circuit 3. The control circuit 3 controls the liquid extraction pump 22 to switch between the first sub-mode and the second sub-mode according to the control signal. The liquid extraction speed in the second sub-mode is greater than the liquid extraction speed in the first sub-mode. When the user needs to increase the spraying amount of the cleaning liquid, the control signal can be triggered through the identification component 300 so that the control circuit 3 controls the liquid extraction pump 22 to switch to the second sub-mode. When the user needs to reduce the spraying amount of the cleaning liquid, the control signal can also be triggered through the identification component 300 so that the control circuit 3 controls the liquid extraction pump 22 to switch to the first sub-mode.

[0123] Among them, the identification component 300 can be a contact mechanical switch. During use, the user can operate the mechanical switch by kicking or pressing the mechanical switch, so that the mechanical switch triggers the corresponding control signal and sends it to the control circuit 3. The identification component 300 can also be a non-contact induction switch. During use, the user can sense it through gestures. Sliding the palm or sole to the left can control the liquid pump 22 to switch to the first sub-mode, and sliding the palm or sole to the right can control the liquid pump 22 to switch to the second sub-mode. Furthermore, the identification component 300 can be set at the edge corner of the floor brush host 1, or it can be set in the middle position of the floor brush host 1, including but not limited to this. Those skilled in the art can design it according to actual conditions.

[0124] In some embodiments, after the vacuum cleaner floor brush proposed by the present invention injects a preset amount of cleaning liquid into the spraying component 4 in the second liquid pumping mode, in order to avoid excessive injection of the cleaning liquid in the liquid channel of the spraying component 4 and overflow, in this case, this embodiment controls the liquid pump 22 to switch from the second liquid pumping mode to the first liquid pumping mode through the control circuit 3, until the sensing device 23 detects that there is no cleaning liquid, and then the control circuit 3 controls the liquid pump 22 to switch from the first liquid pumping mode to the second liquid pumping mode, and so on.

[0125] In some embodiments, the sensing device 23 is arranged close to the liquid outlet end 212, so that the portion of the infusion pipeline 21 between the sensing device 23 and the liquid outlet end 212 is shorter. In this way, when the sensing device 23 detects that there is no cleaning liquid and shuts down the product (the liquid pump 22 stops working), the amount of residual cleaning liquid in the infusion pipeline 21 will be less, and the effect of preventing the residual cleaning liquid from generating odor will be better.

[0126] See also Figure 3 In this embodiment, the sensing device 23 is arranged between the liquid pump 22 and the liquid outlet 212; in this way, the sensing device 23 can be arranged closer to the liquid outlet 212 to a greater extent, further reducing the amount of cleaning liquid remaining in the infusion pipeline 21 when the product is shut down.

[0127] See also Figure 4 In this embodiment, the sensing device 23 can also be arranged between the liquid inlet end 211 and the liquid pump 22. When adopting this solution, the liquid pump 22 can be set as close to the liquid outlet end 212 of the infusion pipeline 21 as possible, that is, the pipeline between the liquid pump 22 and the liquid outlet end 212 is as short as possible, and the sensing device 23 is also as close to the liquid pump 22 as possible.

[0128] See also Figure 6 In this embodiment, the sensing device 23 includes a first housing 231 and a sensor 232. A first liquid channel (not shown) for communicating with the infusion line 21 is formed in the first housing 231. The sensor 232 is mounted on the outer wall of the first housing 231 corresponding to the first liquid channel. That is, the sensor 232 is mounted corresponding to the first liquid channel to detect the liquid condition in the first liquid channel in real time. The sensor 232 and the first housing 231 can be mounted in the following ways: 1. A slot is provided on the outer wall of the first housing 231, and the sensor 232 is mounted in the slot and closely abuts the outer wall of the first housing 231; 2. The sensor 232 is fixed to the outer wall of the first housing 231 by bonding; 3. The sensor 232 is screwed to the outer wall of the first housing 231; and so on. The sensor 232 can be any type of sensor 232 that can sense liquid, for example, a capacitive non-contact sensor 232. The working mode of the sensing device 23 can be: when there is cleaning liquid in the first liquid channel of the first shell 231, the sensor 232 generates a corresponding cleaning liquid signal and feeds it back to the control circuit 3; when there is no cleaning liquid in the first liquid channel, the sensor 232 generates a corresponding cleaning liquid-free signal and feeds it back to the control circuit 3 of the product.

[0129] Of course, in other embodiments, the sensing device 23 can also be other sensing detection structures; the sensing device 23 can also be a sensing device set on the outer wall of the infusion pipeline 21, for example, the sensing device 23 is sleeved on the infusion pipeline 21, or clamped on the infusion pipeline 21, etc.

[0130] See also Figure 3In this embodiment, the infusion pipeline 21 includes a liquid inlet pipe section 213, a connecting pipe section 214 and a liquid outlet pipe section 215, wherein one end of the liquid inlet pipe section 213 is the liquid inlet end 211, and the other end of the liquid inlet pipe section 213 is connected to the suction port 221 of the liquid pump 22; one end of the connecting pipe section 214 is connected to the discharge port 222 of the liquid pump 22, and the other end of the connecting pipe section 214 is connected to one end of the water channel of the first shell 231 (that is, a pipe joint connected to the first shell 231); one end of the liquid outlet pipe section 215 is connected to the other end of the water channel of the first shell 231 (that is, another pipe joint connected to the first shell 231), and the other end of the liquid outlet pipe section 215 is the liquid outlet end 212. Since the induction device 23 detects that there is no water, only the liquid outlet section 215 of the infusion pipeline 21 has residual cleaning liquid. Therefore, the liquid outlet section 215 can be designed to be as short as possible to reduce the amount of residual cleaning liquid therein. Most of the cleaning liquid in the liquid outlet section 215 can be carried out of the liquid outlet end 212 by the inertia of the water flow when the liquid pump 22 stops. In this way, there is almost no residual cleaning liquid in the infusion pipeline 21 when the infusion pipeline 21 is shut down.

[0131] See also Figure 4 In this embodiment, the infusion pipeline 21 includes a liquid inlet pipe section 213, a connecting pipe section 214, and a liquid outlet pipe section 215. One end of the liquid inlet pipe section 213 serves as the liquid inlet end 211, and the other end of the liquid inlet pipe section 213 is connected to one end of the first liquid channel of the first housing 231 (i.e., a pipe joint connected to the first housing 231). One end of the connecting pipe section 214 is connected to the other end of the first liquid channel of the first housing 231 (i.e., another pipe joint connected to the first housing 231), and the other end of the connecting pipe section 214 is connected to the suction port 221 of the liquid pump 22. One end of the liquid outlet pipe section 215 is connected to the discharge port 222 of the liquid pump 22, and the other end of the liquid outlet pipe section 215 serves as the liquid outlet end 212. During design, the connecting pipe section 214 and the liquid outlet pipe section 215 are made as short as possible, so that the sensing device 23 is closer to the liquid outlet end 212, thereby reducing the amount of residual cleaning liquid in the connecting pipe section 214 and the liquid outlet pipe section 215.

[0132] In some embodiments, the vacuum cleaner floor brush further includes a spraying component 4 (see Figure 2 ), a liquid inlet 41 is provided on the spraying component 4, and the liquid inlet 41 of the spraying component 4 is connected to the liquid outlet end 212.

[0133] In some embodiments, see Figure 7-10 The spraying component 4 proposed in the present invention also includes a second shell 42, which is provided with a liquid inlet 41 and a plurality of liquid outlets 43. A second liquid channel is formed in the second shell 42, and the second liquid channel connects the liquid inlet 41 and the plurality of liquid outlets 43. The plurality of liquid outlets 43 are evenly spaced and distributed on the same side of the second shell 42.

[0134] The spraying component 4 of this embodiment employs a plurality of liquid outlets 43 evenly spaced apart on the same side of the second housing 42. The liquid inlet 41 on the second housing 42 communicates with each of the liquid outlets 43 via a second liquid channel within the second housing 42, allowing cleaning liquid entering through the liquid inlet 41 to be dispersed and sprayed out of each of the liquid outlets 43. This allows a row of spaced-apart liquid outlets 43 to simultaneously spray cleaning liquid. A vacuum cleaner brush using the spraying component 4 of this embodiment can be assembled such that the distribution direction of the liquid outlets 43 of the spraying component 4 aligns with the width of the brush. This ensures a more uniform amount of cleaning liquid is delivered across the width of the brush, thereby ensuring that the front and rear wipers of the brush are evenly soaked with cleaning liquid, effectively preventing the formation of stains and achieving a better cleaning effect.

[0135] In some embodiments, the second liquid channel includes a main channel and multiple branch channels connected to the main channel. The liquid inlet 41 is connected to the main channel, and each branch channel is connected to at least one liquid outlet 43. The cleaning liquid of the spraying component 4 is circulated as follows: the cleaning liquid enters the main channel from the liquid inlet 41, flows through the main channel and is dispersed into each branch channel. The cleaning liquid in each branch channel then flows to the connected liquid outlet 43, and the cleaning liquid is finally sprayed out from each liquid outlet 43.

[0136] In this embodiment, the second liquid channel adopts a "total-divided" design concept. The incoming cleaning liquid first flows through the main channel to stabilize, and then is distributed to each branch channel to balance the water flow state entering each branch channel, thereby making the flow rate of the cleaning liquid sprayed from each liquid outlet 43 uniform. In this way, the uniformity of the spraying of the cleaning liquid at each position in the width direction of the floor brush of the vacuum cleaner using the spray component 4 is further improved, the front and rear wipers are more evenly immersed in the cleaning liquid, the generation of stains is better avoided, and the cleaning effect is further improved.

[0137] See also Figure 9-12 In this embodiment, the second housing 42 includes a bottom housing 421 and a cover plate 422 mounted on the bottom housing 421. Several liquid outlets 43 are provided on the outer wall of the bottom housing 421. A groove 4211 is provided within the bottom housing 421, and the liquid outlets 43 communicate with the interior of the groove 4211. The cover plate 422 covers and seals the notch of the groove 4211, and the cover plate 422 cooperates with the groove 4211 to form a second liquid passage. This embodiment employs a scheme in which the groove 4211 is formed on the bottom housing 421, and the cover plate 422 seals the notch of the groove 4211 to form the second liquid passage within the second housing 42. This reduces the number of structural components of the spray assembly as a whole, resulting in a simpler structure. Furthermore, the second liquid passage formed by the groove 4211 and the cover plate 422 is more secure and stable.

[0138] See also Figure 14In this embodiment, the inner side of the bottom shell 421 is further provided with a sinking groove 4212 adapted to the cover plate 422, and the cover plate 422 is installed in the sinking groove 4212. The cover plate 422 is installed in the sinking groove 4212 in an adapted manner, which better ensures the sealing effect of the cover plate 422 on the groove 4211, and the installation of the cover plate 422 is more convenient; the groove 4211 is provided on the bottom wall of the sinking groove 4212, that is, the groove 4211 is formed by the recessed bottom wall of the sinking groove 4212.

[0139] See also Figure 12 、 Figure 13 In this embodiment, a sealing strip 4221 corresponding to the groove 4211 is provided on the cover plate 422. When the cover plate 422 is installed in the sink 4212, the sealing strip 4221 of the cover plate 422 is embedded in the groove 4211, sealing the notch of the groove 4211, so that the sealing effect of the cover plate 422 on the groove 4211 is better. The height of the sealing strip 4221 is less than the depth of the groove 4211, that is, the sealing strip 4221 does not completely fill the internal space of the groove 4211, and the remaining space is the second liquid channel part.

[0140] See also Figure 15 、 Figure 16 In some embodiments, the vacuum cleaner floor brush further includes a liquid reservoir 5 having a liquid outlet connector 51 formed thereon, with the liquid inlet 211 being connected to the liquid outlet connector 51. During use, the liquid pump 22 delivers the cleaning liquid from the liquid reservoir 5 to the spraying component 4 via the liquid delivery line 21, causing the spraying component 4 to spray the cleaning liquid onto the surface to be cleaned (floor, wall, etc.) or the cleaning component (floor brush, roller brush, mop, etc.).

[0141] In some embodiments, see Figure 17-20 The floor brush host 1 proposed in the present invention includes an upper cover 11, a first groove 111 is provided on the surface of the upper cover 11, a liquid inlet 112 is provided on the bottom wall of the first groove 111, the liquid storage tank 5 is detachably connected to the upper cover 11, and the liquid outlet joint 51 is communicated with the liquid inlet 112; a sealing member 6 is accommodated in the first groove 111, and the sealing member 6 is formed with an annular inclined surface 61, and a deformation cavity 7 is formed between the annular inclined surface 61 and the groove wall of the first groove 111, and the liquid outlet joint 51 is inserted into the sealing member 6 and abuts against the annular inclined surface 61, so that the annular inclined surface 61 is deformed toward the deformation cavity 7.

[0142] In this embodiment, the liquid outlet connector 51 is housed within the first groove 111 and communicates with a liquid inlet 112 defined in the bottom wall of the first groove 111. Cleaning liquid in the liquid reservoir 5 flows through the liquid outlet connector 51 into the liquid inlet 112. The liquid outlet connector 51 is constructed as an annular protrusion that extends into the first groove 111, with its free end communicating with the liquid inlet 112. Preferably, the liquid inlet 112 is located in the middle region of the bottom wall of the first groove 111; this is for exemplary purposes only and is not intended to be limiting. Alternatively, the liquid outlet connector 51 and the liquid inlet 112 may be directly opposite each other.

[0143] When the liquid storage tank 5 is installed on the upper cover 11, the sealing member 6 is accommodated in the first groove 111 and forms an annular inclined surface 61. A deformation cavity 7 is formed between the annular inclined surface 61 and the groove wall of the first groove 111. The deformation cavity 7 is used for the annular inclined surface 61 to deform toward it, ensuring that there is sufficient space between the annular inclined surface 61 and the deformation cavity 7, reducing the resistance generated when the annular inclined surface 61 is deformed, and making it easier for the liquid outlet connector 51 to be inserted into the sealing member 6.

[0144] Furthermore, when the liquid storage tank 5 is mounted on the upper cover 11, the liquid storage tank 5 and the upper cover 11 can be detachably connected by a snap-fit ​​connection. In some embodiments, a cavity is formed inside the liquid storage tank 5, which communicates with the liquid outlet connector 51. One of the liquid storage tank 5 and the upper cover 11 is provided with a hook, and the other of the liquid storage tank 5 and the upper cover 11 is provided with a slot, and the liquid storage tank 5 and the upper cover 11 are connected by the engagement of the hook and the slot.

[0145] Preferably, the liquid reservoir 5 of this embodiment is provided with a hook at the bottom and a corresponding groove on the surface of the upper cover 11. Once mounted on the upper cover 11, the hook and groove secure the liquid reservoir 5. During this process, the annular slope 61 deforms toward the deformation cavity 7, generating an upward elastic restoring force. When the liquid reservoir 5 is removed from the upper cover 11, the external force opposing this elastic restoring force is removed, and the liquid reservoir 5 is then subjected to the upward elastic restoring force, making removal of the liquid reservoir 5 very easy.

[0146] Furthermore, the sealing member 6 proposed in this embodiment is funnel-shaped or cone-shaped, and has a through hole in the middle of the sealing member 6 for the liquid outlet connector 51 to be inserted therein. The liquid outlet connector 51 is inserted in the through hole and abuts against the annular inclined surface 61 .

[0147] In some embodiments, see Figure 20-22 The annular inclined surface 61 of the present invention has a step 62 protruding inward at one end close to the liquid inlet 112 . The step 62 abuts against the wall of the first groove 111 and is located at the periphery of the liquid inlet 112 .

[0148] In this embodiment, a step 62 is formed at one end of the annular slope 61 near the bottom wall of the first groove 111. This step 62 projects toward the inside of the seal 6 and abuts against the inner wall of the first groove 111, supporting the entire seal 6 while also providing a waterproof seal. Preferably, the junction between the step 62 and the annular slope 61 in this embodiment is arc-shaped.

[0149] In some embodiments, see Figure 20-22 The sealing member 6 proposed in the present invention also includes a connecting end 63 extending along the step 62 in a direction away from the liquid outlet joint 51. The connecting end 63 includes a first connecting end 631 and a second connecting end 632 connected in a bent manner. The first connecting end 631 is provided with a through hole 6311 connected to the first groove 111. The first connecting end 631 is accommodated in the liquid inlet 112 and abuts against the wall of the liquid inlet 112. The second connecting end 632 is located at the periphery of the liquid inlet 112 and abuts against the outer bottom wall of the first groove 111.

[0150] In this embodiment, the sealing member 6 further includes a connecting end 63 extending along the step 62 in a direction away from the liquid outlet connector 51. The connecting end 63 is used to securely connect the sealing member 6 to the bottom wall of the first groove 111. The connecting end 63 includes a first connecting end 631 and a second connecting end 632. The first connecting end 631 and the second connecting end 632 are connected to form an L-shaped structure. One end of the first connecting end 631 is connected to the step 62, and the other end extends vertically and connects to one end of the second connecting end 632. The other end of the second connecting end 632 extends horizontally. The first connecting end 631 is housed within the liquid inlet 112 and abuts against the wall of the liquid inlet 112. The second connecting end 632 is located at the periphery of the liquid inlet 112 and abuts against the outer bottom wall of the first groove 111.

[0151] In some embodiments, see Figure 20 The vacuum cleaner floor brush proposed in the present invention also includes a liquid inlet connector 8, which abuts against a surface of the second connection end 632 away from the liquid outlet connector 51, and the opening of the liquid inlet connector 8 is connected to the liquid inlet 112.

[0152] In this embodiment, a liquid inlet joint 8 is provided at the bottom of the first groove 111, and the opening of the liquid inlet joint 8 is communicated with the liquid inlet 112. When the liquid storage tank 5 is installed on the upper cover 11, the upper surface of the second connecting end 632 abuts against the bottom wall of the first groove 111, and the lower surface of the second connecting end 632 abuts against the liquid inlet joint 8. The liquid inlet joint 8 is connected to the bottom shell 421 of the liquid storage tank 5, and the second connecting end 632 is pressed by the liquid inlet joint 8. In this way, the lower end of the seal 6 will be fixed by the liquid inlet joint 8, ensuring that the seal 6 will not move or flip up when under pressure. In addition, the liquid inlet joint 8 can also play a sealing role, which can prevent the cleaning liquid from flowing into the upper cover 11 from between the upper cover 11 and the liquid inlet joint 8, thereby avoiding the phenomenon of burning the machine.

[0153] In some embodiments, see Figure 20-22 The annular inclined surface 61 proposed in the present invention is bent outward at one end away from the liquid inlet 112 to form a connecting portion 64. The upper cover 11 is provided with a second groove 113 surrounding the first groove 111, and the connecting portion 64 is accommodated in the second groove 113.

[0154] In this embodiment, one end of the annular bevel 61, which is close to the top wall of the first groove 111, is bent and extended to form a connecting portion 64. The upper cover 11 is provided with a second groove 113 surrounding the first groove 111. The connecting portion 64 is received in the second groove 113, thereby securing the sealing member 6 to the upper cover 11. The second groove 113 can be concave in a direction perpendicular to the liquid outlet connector 51 or in a direction parallel to the liquid outlet connector 51. Regardless of the design, the connecting portion 64 at one end of the annular bevel 61 is received in the second groove 113.

[0155] In some embodiments, see Figure 18 、 Figure 20 The second groove 113 proposed in the present invention is arranged concentrically with the first groove 111, and the connecting portion 64 includes a first connecting portion 641 and a second connecting portion 642 that are bent and connected. The first connecting portion 641 abuts against the end surface of the groove wall of the first groove 111, and the second connecting portion 642 is accommodated in the second groove 113.

[0156] In this embodiment, the second groove 113 is recessed in a direction parallel to the liquid outlet connector 51. In this case, the second groove 113 is concentrically arranged with the first groove 111. The connecting portion 64 includes a first connecting portion 641 and a second connecting portion 642. The first connecting portion 641 and the second connecting portion 642 are connected to form an L-shaped structure. One end of the first connecting portion 641 is connected to one end of the annular inclined surface 61, and the other end extends horizontally and is connected to one end of the second connecting portion 642. The other end of the second connecting portion 642 extends vertically.

[0157] In some embodiments, see Figure 23The liquid storage tank 5 proposed in the present invention includes a box body 52 and a box cover 53. A liquid storage cavity 54 is formed inside the box body 52. ​​The box cover 53 is provided with a liquid injection port 55 and a sealing assembly 56 for sealing the liquid injection port 55. The liquid injection port 55 and the liquid outlet joint 51 are both connected to the liquid storage cavity 54.

[0158] In this embodiment, the liquid storage tank 5 is arranged on the upper cover 11 of the floor brush main unit 1. The liquid storage tank 5 includes a box body 52 and a box cover 53. The box cover 53 is connected to the opening of the box body 52. ​​The box cover 53 and the box body 52 are detachably connected. One of the box cover 53 and the box body 52 is provided with a plug-in protrusion, and the other of the box cover 53 and the box body 52 is provided with a plug-in groove. The box cover 53 and the box body 52 are connected by plugging the plug-in protrusion into the plug-in groove.

[0159] Furthermore, the interior of the box 52 is hollow and forms a liquid storage chamber 54 for holding clean water. A liquid outlet connector 51 is provided at the bottom of the box 52, connected to the liquid storage chamber 54. Clean water in the liquid storage chamber 54 flows out through the liquid outlet connector 51. In some embodiments, the box 52 is constructed in a "U" shape. This is merely exemplary and non-restrictive, and those skilled in the art may design it according to actual circumstances. A liquid inlet 55 is provided on the box lid 53, connected to the liquid storage chamber 54. A sealing assembly 56 is provided at the liquid inlet 55, isolating the liquid inlet 55 from the outside, preventing external debris from entering the liquid storage chamber 54 through the liquid inlet 55, and also preventing the cleaning liquid in the liquid storage chamber 54 from splashing out through the liquid inlet 55. The liquid storage tank 5 proposed by the present invention is disposed on the top surface of the floor brush main unit 1. Its overall exposed configuration makes it more convenient to add cleaning liquid compared to existing concealed water tanks. The cleaning liquid may be clean water, soapy water, or a mixture of clean water and other detergents, including but not limited to these, and those skilled in the art may design it according to actual conditions.

[0160] In some embodiments, see Figure 30 The floor brush host 1 proposed in the present invention also includes a base 12, which is connected to the upper cover 11 to form a accommodating cavity. A driving device 9 is provided in the accommodating cavity. A floor wiping piece 10 is provided at the bottom of the base 12. The floor wiping piece 10 is connected to the output execution end of the driving device 9. The driving device 9 is used to drive the floor wiping piece 10 to reciprocate along a preset direction.

[0161] In this embodiment, the floor brush host 1 includes an upper cover 11 and a base 12 that are relatively covered from top to bottom. The upper cover 11 and the base 12 are detachably connected, and can be connected by means of snap-on connection, plug-in connection, screws, etc., including but not limited to these. The interior of the upper cover 11 and the base 12 is hollow, and the two together enclose a receiving cavity for accommodating various components. Among them, a driving device 9 is provided in the receiving cavity, and a floor wiping member 10 is provided at the bottom of the base 12. The floor wiping member 10 is connected to the output execution end of the driving device 9. The driving device 9 drives the moving wiping plate to move in a preset direction relative to the floor brush host 1, such as reciprocating along the front and back direction of the floor brush host 1.

[0162] The mopping element 10 can be provided with one, two, or three elements, and those skilled in the art can design it based on actual circumstances. In this embodiment, two mopping elements 10 are provided, spaced apart from each other. This is merely exemplary and non-limiting. Furthermore, the mopping element 10 can be provided with a cleaning element, or in other words, the mopping element 10 can include a cleaning element, such as a rag, to clean the floor. This allows the vacuum cleaner brush proposed in this embodiment to combine mopping and vacuuming functions, improving the product's practicality.

[0163] In some embodiments, see Figure 24 、 Figure 25 The liquid storage tank 5 proposed in the present invention is provided with a bayonet 57 on one side close to the front end of the floor brush host 1, and a tenon 114 is protruded from the front side wall of the upper cover 11 corresponding to the bayonet 57.

[0164] In this embodiment, one of the liquid storage tank 5 and the upper cover 11 is provided with a bayonet 57, and the other is provided with a tenon 114. The liquid storage tank 5 and the upper cover 11 are connected by the cooperation of the bayonet 57 and the tenon 114. Preferably, the bayonet 57 is provided on the front side of the liquid storage tank 5 of this embodiment, and the tenon 114 is correspondingly provided on the front side wall of the upper cover 11, and the tenon 114 is adapted to fit with the bayonet 57.

[0165] In some embodiments, see Figure 16 、 Figure 25 The bottom wall of the box body 52 proposed in the present invention has a hook 58 protruding from the outside, and the hook 58 includes a third connecting portion 581 and a fourth connecting portion 582 that are connected to each other and arranged in an intersecting manner. The third connecting portion 581 is also connected to the bottom wall of the box body 52. ​​The third connecting portion 581 and the fourth connecting portion 582 are combined to form a bayonet 57, and the fourth connecting portion 582 is inclined relative to the bottom wall of the box body 52.

[0166] In this embodiment, the hook 58 is generally L-shaped and includes a third connecting portion 581 and a fourth connecting portion 582. One end of the third connecting portion 581 is connected to the bottom wall of the housing 52, and the other end is connected to the fourth connecting portion 582. The third connecting portion 581 and the fourth connecting portion 582 together form a bayonet 57. The fourth connecting portion 582 is tilted relative to the bottom wall of the housing 52. This allows the liquid storage tank 5 to rotate relative to the main unit 1, thereby achieving rotary assembly of the liquid storage tank 5 and facilitating installation and removal of the liquid storage tank 5. Furthermore, an "L"-shaped slot is defined on the front sidewall of the upper cover 11. This "L"-shaped slot is adapted to fit the hook 58, and the tenon 114 is disposed within the "L"-shaped slot.

[0167] In some embodiments, see Figures 26-29 The liquid storage tank 5 proposed in the present invention is provided with a accommodating groove 59 on one side close to the rear end of the floor brush main unit 1, and a telescopic tongue 5A is provided in the accommodating groove 59; a docking groove 115 is provided on the rear side of the upper cover 11 corresponding to the telescopic tongue 5A, and the telescopic tongue 5A is used to extend into the docking groove 115 to connect the liquid storage tank 5 and the upper cover 11.

[0168] In this embodiment, when installing the liquid storage tank 5 on the upper cover 11, the "L"-shaped hook 58 on the bottom wall of the box body 52 is first inserted into the "L"-shaped slot, so that the bayonet 57 is hooked on the tenon 114, and then the liquid storage tank 5 is rotated downward so that the liquid storage tank 5 is closed on the upper cover 11. When the liquid storage tank 5 is closed on the upper cover 11, the retractable tongue 5A on the rear side of the liquid storage tank 5 will be squeezed by the rear side wall of the upper cover 11, causing the retractable tongue 5A to move toward the front end of the vacuum cleaner. After the liquid storage tank 5 is rotated downward until the retractable tongue 5A is inserted into the docking slot 115, the retractable tongue 5A is no longer squeezed by the rear side wall of the upper cover 11. It moves toward the rear end of the vacuum cleaner under the action of the elastic force, thereby extending into the docking slot 115, thereby fixing the liquid storage tank 5 to the upper cover 11. When the liquid storage tank 5 needs to be removed, the telescopic tongue 5A is directly pressed toward the accommodating groove 59 to separate the telescopic tongue 5A from the docking groove 115, and then the liquid storage tank 5 can be rotated upward to separate the liquid storage tank 5 from the upper cover 11, thereby removing it.

[0169] In some embodiments, see Figure 30-32 The driving device 9 proposed in the present invention includes at least two sets of driving assemblies 91. The at least two sets of driving assemblies 91 are spaced apart and respectively connected to the wiping element 10, so that the wiping element 10 reciprocates on the ground when cleaning. The driving device 9 proposed in this embodiment includes at least two sets of driving assemblies 91. The at least two sets of driving assemblies 91 are used to drive the wiping element 10 together, making the reciprocating motion of the wiping element 10 on the ground more stable.

[0170] In some embodiments, the floor-cleaning element 10 of the present invention may include a moving wiping plate and a brush mounted on the moving wiping plate. The moving wiping plate is respectively connected to at least two sets of drive assemblies 91. The brush and the moving wiping plate are detachably connected, for example, by a snap connection or Velcro connection, including but not limited to these. Furthermore, the floor-cleaning element 10 may also include a moving wiping plate and a rag mounted on the moving wiping plate. The rag can be wetted with water to wet clean the floor, thereby integrating the mopping and suction functions of the vacuum cleaner brush into one unit, thereby enhancing the practicality of the vacuum cleaner brush.

[0171] In some embodiments, see Figure 30-32 The floor-wiping members 10 proposed in the present invention include two, two floor-wiping members 10 are spaced apart and arranged in parallel, the driving assembly 91 includes a connecting shaft 911, the connecting shaft 911 includes a first shaft neck 9111 and a second shaft neck 9112 that are staggered and connected; a first crank 912, one end of which is rotatably mounted on the first shaft neck 9111, and the other end of which is hinged to a floor-wiping member 10; and a second crank 913, one end of which is rotatably mounted on the second shaft neck 9112, and the other end of which is hinged to another floor-wiping member 10.

[0172] In this embodiment, two wiping elements 10 are provided at the front and rear ends of the bottom of the floor brush main unit 1. The two wiping elements 10 are separated by a preset distance so that they do not collide during back-and-forth reciprocating motion. The drive assembly 91 includes a connecting shaft 911, a first crank 912, and a second crank 913. The connecting shaft 911 further includes a first journal 9111 and a second journal 9112 that are staggered. One end of the first crank 912 is rotatably mounted on the first journal 9111, and the other end is hinged to one of the wiping elements 10. One end of the second crank 913 is rotatably mounted on the second journal 9112, and the other end is hinged to the other wiping element 10.

[0173] In some embodiments, see Figure 31 、 Figure 32 The driving device 9 proposed in the present invention also includes a driving motor 92, and the connecting shaft 911 is formed with a first axial hole 9113 that passes through the first shaft neck 9111 and the second shaft neck 9112. The first axial hole 9113 deviates from the center of the first shaft neck 9111 and the second shaft neck 9112, and the connecting shaft 911 is sleeved on the motor shaft of the driving motor 92 through the first axial hole 9113.

[0174] In this embodiment, the connecting shaft 911 is sleeved on the motor shaft of the drive motor 92 through the first shaft hole 9113 formed thereon. When the motor shaft of the drive motor 92 rotates, the connecting shaft 911 will rotate along with the motor shaft, thereby driving the first crank 912 and the second crank 913 connected to the first shaft neck 9111 and the second shaft neck 9112 respectively to rotate.

[0175] In some embodiments, see Figure 32The driving assembly 91 proposed in the present invention includes two, the driving motor 92 is a dual-axis motor, the two motor shafts of the driving motor 92 are respectively facing one driving assembly 91, the dual-axis motor is located between the two driving assemblies 91, and the connecting shafts 911 of the two driving assemblies 91 are respectively sleeved on the two motor shafts of the dual-axis motor through their respective first shaft holes 9113.

[0176] In this embodiment, two floor-wiping elements 10 are provided at the bottom of the floor brush main unit 1, two drive assemblies 91 are also provided, and the drive motor 92 is a dual-axis motor with two motor shafts. The dual-axis motor is provided between the two drive assemblies 91, and the connecting shafts 911 of the two drive assemblies 91 are respectively sleeved on the two shafts of the dual-axis motor through their respective first shaft holes 9113. Preferably, the dual-axis motor proposed in this embodiment is provided in the central area of ​​the inner cavity of the floor brush main unit 1. This is merely exemplary and not restrictive.

[0177] In some embodiments, see Figures 34-36 The bottom of the floor brush host 1 proposed in the present invention is provided with an air inlet 13, and the floor brush host 1 is provided with a dust collection pipe 14 connected thereto and communicating with the air inlet 13. A sealing component 30 is arranged in the air duct 20 of the air inlet 13. The sealing component 30 blocks the rear end of the air inlet 13 so that the airflow of the air inlet 13 is reflected by the sealing component 30 and flows into the dust collection pipe 14.

[0178] In this embodiment, an air inlet 13 is provided at the bottom of the floor brush main unit 1, and a dust collection duct 14 is provided inside the floor brush main unit 1, which is connected to the air inlet 13. During dust removal, negative pressure is generated in the dust collection duct 14, and external air flows into the dust collection duct 14 through the air inlet 13. The air flow generates suction at the air inlet 13, and the dust on the ground is sucked into the dust collection duct 14 along with the air through the suction force.

[0179] Furthermore, in this embodiment, a sealing assembly 30 is provided at the air inlet 13. The sealing assembly 30 is disposed at the rear end of the air inlet 13. By blocking the rear end of the air inlet 13 with the sealing assembly 30, the airflow is entirely directed through the front end of the air inlet 13 into the dust collection duct 14, thereby increasing the suction force generated at the air inlet 13. Furthermore, the sealing assembly 30 can also reflect dust drawn into the air inlet 13, causing the dust to flow into the dust collection duct 14 after colliding with the sealing assembly 30, thereby further ensuring the dust collection effect of the vacuum cleaner's floor brush.

[0180] Specifically, when all the air flows in through the front end of the air inlet 13, light dust can be directly sucked into the dust collecting duct 14 along with the airflow, while high-density particles usually move close to the ground during the vacuuming process. After the particles move to the air inlet 13, they will collide with the sealing component 30. During the collision, the sealing component 30 will generate an upward reaction force on the high-density particles, causing them to enter the dust collecting duct 14. The air in the dust collecting duct 14 flows faster and has greater suction force, which can quickly suck in high-density particles, thereby enhancing the vacuum cleaner floor brush's ability to suck in high-density particles and improving the cleaning effect of the vacuum cleaner floor brush.

[0181] It should be noted that the front end and rear end proposed in this embodiment are based on the vacuum cleaner floor brush. The front end of the air inlet 13 refers to the position close to the front end of the vacuum cleaner floor brush, and the rear end of the air inlet 13 is the position opposite to the front end of the air inlet 13 and away from the front end of the vacuum cleaner floor brush.

[0182] In some embodiments, see Figure 35 The floor brush host 1 proposed in the present invention includes a base 12, the base 12 includes a bottom plate 121 and a side plate 122 connected to the bottom plate 121, the bottom plate 121 bends and extends toward the ground at the air inlet 13 to form a baffle 123, the air inlet 13 is located between the side plate 122 and the baffle 123, and the baffle 123 cooperates with the side plate 122 to form an air duct 20 of the air inlet 13.

[0183] In this embodiment, the bottom plate 121 is horizontally disposed and has a baffle 123 formed at the air inlet 13. The baffle 123 bends and extends toward the ground. The side plates 122 are vertically disposed and connected to the bottom plate 121. The side plates 122 and baffle 123 are located at the front and rear ends of the air inlet 13, respectively, and together they form an air duct 20 for the air inlet 13. During dust removal, dust on the ground first flows into the air duct 20 formed by the baffle 123 and side plates 122, then enters the dust collection duct 14 through the air inlet 13, and is finally sucked into the dust collection container of the vacuum cleaner, such as a dust box, dust bin, and dust bag.

[0184] In some embodiments, see Figure 35 The sealing assembly 30 proposed in the present invention includes a mounting member 31 and a guide member 32 provided on the mounting member 31. The mounting member 31 is detachably connected to the baffle 123. One end of the guide member 32 abuts against the end wall of the open end of the dust collecting duct 14, and the other end contacts the ground during dust collection.

[0185] In this embodiment, the sealing assembly 30 includes a mounting member 31 and a guide member 32. The mounting member 31 is used to support and mount the guide member 32, which is fixed to the baffle 123 of the base 12 via the mounting member 31. One end of the guide member 32 is connected to or abuts the end wall of the open end of the dust collection duct 14, and the other end is a free end. During vacuuming, the guide member 32 is in contact with the ground to block one end of the air inlet 13. At the same time, it can also guide high-density particulate matter, allowing it to enter the dust collection duct 14 under the action of the guide member 32.

[0186] In some embodiments, see Figure 35 The guide member 32 proposed in the present invention is concave on one side facing the side plate 122 and has a preset curvature.

[0187] In this embodiment, the guide member 32 is curved and has a predetermined curvature. This curved guide member 32 ensures that high-density particles collide with the guide member 32 at a predetermined angle, allowing them to enter the dust collection duct 14 after impact, thereby improving the vacuum cleaner's dust collection capacity. The curvature of the guide member 32 can be designed based on actual conditions, such as 12°. Preferably, the guide member 32 proposed in this embodiment is crescent-shaped, but this is merely illustrative and not restrictive.

[0188] In some embodiments, see Figures 38-40 The dust collecting duct proposed in the present invention includes a tube body 141 and at least one cover body 142. Both ends of the tube body 141 are open. The tube body 141 has a dust suction duct 1411 extending from one end to the other end. At least one opening 1412 is opened on the outer wall of the tube body 141. The cover body 142 is arranged on the tube body 141 to seal the opening 1412.

[0189] In this embodiment, the tube body 141 can be a straight tube, a bent tube with multiple sections, an arc-shaped tube, or a tube of other shapes. The figures of this embodiment illustrate a bent tube with multiple sections as an example. The opening 1412 can be shaped in various ways, such as rectangular, circular, elliptical, or polygonal, depending on actual needs. The figures of this embodiment illustrate a rectangular opening 1412 as an example.

[0190] When the dust collection duct device of this embodiment is used in a vacuum cleaner, during vacuuming, the cover body 142 covers the opening 1412, the outer wall of the tube body 141 is sealed, and the garbage objects sucked up by the vacuum cleaner enter the garbage collection part of the vacuum cleaner through the dust collection duct 1411 in the tube body 141; when the dust collection duct 1411 is blocked by residual stuck garbage, the cover body 142 is opened to expose the opening 1412, and the user removes the stuck garbage from the opening 1412, or uses a tool to poke the garbage out from the opening 1412 to one end or the other end of the tube body 141.

[0191] The dust collection duct device of this embodiment adopts at least one opening 1412 and at least one cover 142 for covering the opening 1412 provided on the tube body 141; during normal dust collection use, the cover 142 covers the opening 1412 to keep the outer wall of the tube body 141 sealed; when the dust collection duct 1411 is clogged with residual stuck garbage, the cover 142 is opened to expose the opening 1412, and the garbage stuck in the dust collection duct 1411 is removed from the opening 1412, or the stuck garbage is poked out from the opening 1412 to the two ends of the tube body 141 using a tool. Compared with removing stuck garbage from the end of the dust duct 1411, since the distance between the opening 1412 and either end of the dust duct 1411 is smaller than the distance between the two ends of the dust duct 1411, removing stuck garbage in the dust duct 1411 from the opening 1412 is simpler and more convenient, and the stuck garbage can be removed more quickly, allowing the vacuum cleaner to resume dust collection operations more quickly.

[0192] In some embodiments, see Figure 41 The vacuum cleaner floor brush proposed in the present invention further includes a base 50 , which is detachably connected to the floor wiping member 10 , and a side of the base 50 facing away from the floor wiping member 10 is used to mount a cleaning cloth 60 .

[0193] In this embodiment, the base 50 and the floor-cleaning piece 10 are detachably connected, and the connection method can be magnetic connection, snap connection, screw connection, etc. The cleaning cloth 60 is installed on the side of the base 50 facing away from the floor-cleaning piece 10, and the installation method can be bonding, snap connection, etc., including but not limited to this, and is set according to actual conditions.

[0194] When a thin disposable cleaning cloth is needed, the base 50 is detachably connected to the mopping element 10, and the cleaning cloth 60 is mounted on the side of the base 50 facing away from the mopping element 10. The base 50 can compensate for the thickness of the thin disposable cleaning cloth, so that the disposable cleaning cloth can contact the floor when mounted on the mopping element for mopping.

[0195] When a recyclable thick cleaning piece is needed, the base 50 is removed from the mopping piece 10 and the thick cleaning piece is mounted on the mopping piece 10. In this way, the vacuum cleaner brush of the present invention can use both a recyclable thick cleaning piece and a thin disposable cleaning cloth, thereby meeting more needs of users.

[0196] In some embodiments, see Figures 42-44 The vacuum cleaner floor brush proposed by the present invention also includes:

[0197] The liquid storage box 70 has a liquid storage space 80 and at least one inclined channel 90 communicating with the liquid storage space 80 and arranged at an angle relative to the bottom wall of the liquid storage box 70. The bottom wall of the liquid storage box 70 has a liquid drainage hole 701 communicating with the at least one inclined channel 90. The bottom surface of the liquid storage box 70 is used to dispose a cleaning member 100.

[0198] The movable member 200 is located in the inclined channel 90;

[0199] When the vacuum cleaner accessory 100 is stationary, the movable member 200 blocks the drainage hole 701 ; when the vacuum cleaner accessory 100 is moving, the movable member 200 moves in the inclined channel 90 to open the drainage hole 701 .

[0200] In this embodiment, a liquid storage space 80 is formed within the liquid storage box 70. The liquid storage box 70 also serves as a water tank, providing cleaning liquid for wetting the cleaning element 100. The liquid storage box 70 can have various structural forms, such as a removable lid or a one-piece structure. Those skilled in the art can design the structure based on practical needs. The bottom surface of the liquid storage box 70 is used to mount the cleaning element 100. The cleaning element 100 can be a cleaning cloth, a cleaning sponge, or other similar device. The mounting method can be adhesive bonding or snap-on connection, including but not limited to these.

[0201] The bottom surface of the liquid storage box 70 is provided with drainage holes 701, and each drainage hole 701 corresponds to an inclined channel 90. When the drainage hole 701 is open, water in the liquid storage space 80 within the liquid storage box 70 can flow out to the cleaning member 100 through the inclined channel 90 and the drainage hole 701. A movable member 200 is provided in the inclined channel 90, and the movable member 200 is used to close and open the drainage hole 701. Specifically, the movable member 200 can be located at the bottom of the inclined channel 90 to block the drainage hole 701, thereby closing the drainage hole 701; the movable member 200 can also move upward along the inclined channel 90 to disengage the drainage hole 701, thereby opening the drainage hole 701. The movable member 200 is preferably a sphere and can be made of steel. The inclined channel 90 can be formed by a structure within the liquid storage box 70. For example, a hollow cylinder is disposed within the liquid storage box 70, corresponding to each drainage hole 701, with the drainage hole 701 located at the lower end of the hollow cylinder. The interior space of the hollow cylinder forms the inclined channel 90. A through hole is provided in the peripheral wall of the hollow cylinder to connect the liquid storage space 80 with the inclined channel 90. The movable member 200 is located within the hollow cylinder and can move upward or downward. Of course, the above structure is merely exemplary and not restrictive.

[0202] Specifically, when the floor brush of the vacuum cleaner is not working, it is in a stationary state. The movable part 200 is located at the bottom of the inclined channel 90 due to its own gravity and blocks the drainage hole 701. The drainage hole 701 is in a closed state. At this time, the water in the liquid storage space 80 in the liquid storage box 70 will not flow out to the cleaning part 100 through the drainage hole 701; when the floor brush of the vacuum cleaner is working, it performs high-frequency reciprocating motion. The movable part 200 is affected by inertia and reciprocates along the inclined channel 90 in the inclined channel 90 to disengage from the drainage hole 701. The drainage hole 701 is in an open state. At this time, the water in the liquid storage space 80 in the liquid storage box 70 can flow out to the cleaning part 100 through the inclined channel 90 and the drainage hole 701.

[0203] The present invention provides an inclined channel 90 in the liquid storage box 70, and enables the movable part 200 to move in the inclined channel 90 so that the water in the liquid storage box 70 flows out to the cleaning part 100. Compared with the water tank structure and pipeline setting of the existing vacuum cleaner, the structure of the present invention is simpler, thereby saving costs.

[0204] In some embodiments, see Figure 37 The vacuum cleaner floor brush proposed in the present invention also includes a rotary joint 40, which includes a first joint 41 and a second joint 42. The second joint 42 is rotatably connected to one end of the first joint 41, and the other end of the first joint 41 is rotatably connected to the floor brush host 1. The first joint 41 can rotate relative to the floor brush host 1 in a first direction, and the second joint 42 can rotate relative to the first joint 41 in a second direction. The first direction is different from the second direction.

[0205] In order to facilitate the cleaning of dust in corners by the floor brush host 1, a rotary joint 40 is provided on the floor brush host 1 in this embodiment, which is connected to the dust suction rod through the rotary joint 40, so that the dust suction rod can be rotated at various angles in two different directions relative to the floor brush host 1. In this way, when cleaning dust in the corners, the user only needs to rotate the dust suction rod to move the vacuum cleaner floor brush toward the corner, which improves the dust suction effect and is easy to operate.

[0206] Specifically, the rotary joint 40 includes a first joint 41 and a second joint 42 that are hinged to each other, and the other end of the first joint 41 is rotatably connected to the floor brush main unit 1. The first joint 41 can rotate relative to the floor brush main unit 1 in a first direction, and the second joint 42 can rotate relative to the first joint 41 in a second direction. Furthermore, the rotation direction of the first joint 41 is different from the rotation direction of the second joint 42. This allows the vacuum rod connected to the rotary joint 40 to rotate in multiple directions relative to the floor brush main unit 1, thereby facilitating control of the movement direction of the floor brush main unit 1 during vacuuming and facilitating cleaning of dust in corners. The first direction can be either vertical or horizontal, and the second direction can correspond to either horizontal or vertical directions. Those skilled in the art can design the vacuum rod according to actual conditions.

[0207] In some embodiments, the bottom of the floor brush host 1 proposed in the present invention is provided with a moving wheel 15, which can reduce the friction between the vacuum cleaner floor brush and the ground, thereby greatly saving the user's physical energy and improving the user experience.

[0208] The present invention further proposes a vacuum cleaner including the vacuum cleaner floor brush described in the aforementioned embodiments. The specific structure of the vacuum cleaner floor brush refers to the above embodiments. Since this vacuum cleaner adopts all the technical solutions of all the above embodiments, it at least has all the technical effects brought about by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0209] The above are only some or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A vacuum cleaner floor brush, characterized in that: include: Floor brush host; A spraying device is provided on the floor brush host, the spraying device includes an infusion pipeline and a liquid pump, the infusion pipeline includes a liquid inlet end for connecting to a liquid storage tank and a liquid outlet end for connecting to a spraying component, the infusion pipeline is provided with a sensing device for sensing the cleaning liquid, and the liquid pump is connected in series to the infusion pipeline; specifically, the sensing device is provided between the liquid pump and the liquid outlet end, and the sensing device is provided close to the liquid outlet end; or, the sensing device is provided between the liquid inlet end and the liquid pump, and the liquid pump is provided close to the liquid outlet end, and the sensing device is provided close to the liquid pump; a control circuit, provided in the floor brush host, the control circuit being electrically connected to the sensing device and the liquid pump, respectively, and being configured to control the liquid pump to switch between a first liquid pumping mode and a second liquid pumping mode according to a sensing signal fed back by the sensing device, wherein the liquid pumping speed in the second liquid pumping mode is greater than the liquid pumping speed in the first liquid pumping mode; When the liquid storage tank is filled with cleaning liquid, if the sensing device detects that the cleaning liquid in the infusion pipeline is lower than a preset liquid level, the control circuit controls the liquid pump to operate in the second liquid pumping mode to increase the speed at which the cleaning liquid in the liquid storage tank is sucked into the spraying component. If the sensing device detects that the cleaning liquid in the infusion pipeline is equal to or higher than the preset liquid level, the control circuit controls the liquid pump to operate in the first liquid pumping mode.

2. The vacuum cleaner floor brush according to claim 1, characterized in that: The liquid pump operates in the first liquid pumping mode, so that after the cleaning liquid in the liquid storage tank is pumped out, and the sensing device detects that the cleaning liquid in the infusion pipeline is lower than the preset liquid level, the liquid pump is controlled by the control circuit to stop running or continue to operate in the first liquid pumping mode.

3. The vacuum cleaner floor brush according to claim 1, characterized in that: The first liquid pumping mode includes a first sub-mode and a second sub-mode, and the liquid pumping speed in the second sub-mode is greater than the liquid pumping speed in the first sub-mode; The vacuum cleaner floor brush also includes an identification component, which is electrically connected to the control circuit and is used to sense external signals and send them to the control circuit. The control circuit controls the liquid pump to switch between the first sub-mode and the second sub-mode according to the external signals.

4. The vacuum cleaner floor brush according to claim 1, characterized in that: The control circuit controls the liquid pump to operate in the second liquid pumping mode until a preset amount of cleaning liquid is injected into the spraying component, and then controls the liquid pump to switch from the second liquid pumping mode to the first liquid pumping mode.

5. The vacuum cleaner floor brush according to claim 1, characterized in that: The sensing device includes a first shell and a sensor. A first liquid channel for communicating with the infusion pipeline is formed in the first shell. The sensor is installed on the outer wall of the first shell corresponding to the first liquid channel.

6. The vacuum cleaner floor brush according to claim 5, characterized in that: The infusion pipeline comprises: a liquid inlet pipe section, one end of which is the liquid inlet end and the other end of which is connected to the suction port of the liquid pump; a connecting pipe section, one end of which is connected to the discharge outlet of the liquid pump, and the other end of which is connected to one end of the first liquid channel; a liquid outlet pipe section, one end of which is connected to the other end of the first liquid channel, and the other end of which is the liquid outlet end; Alternatively, the infusion pipeline comprises: a liquid inlet pipe section, one end of which is the liquid inlet end and the other end of which is connected to one end of the first liquid channel; a connecting pipe section, one end of which is connected to the other end of the first liquid channel, and the other end of which is connected to the suction port of the liquid pump; The liquid outlet pipe section has one end connected to the discharge port of the liquid pump and the other end being the liquid outlet end.

7. The vacuum cleaner floor brush according to claim 1, characterized in that: The spraying component further includes a second shell, on which a liquid inlet and a plurality of liquid outlets are provided, the liquid inlet is connected to the liquid outlet end, a second liquid channel is formed in the second shell, the second liquid channel connects the liquid inlet and the plurality of liquid outlets, and the plurality of liquid outlets are evenly spaced and distributed on the same side of the second shell.

8. The vacuum cleaner floor brush according to claim 7, characterized in that: The second liquid channel includes a main channel and a plurality of branch channels connected to the main channel. The liquid inlet is connected to the main channel, and each branch channel is connected to at least one liquid outlet.

9. The vacuum cleaner floor brush according to claim 7, characterized in that: The second shell includes a bottom shell and a cover plate installed on the bottom shell. The multiple liquid outlets are arranged on the outer wall of the bottom shell. A groove is provided in the bottom shell. The cover plate covers and seals the notch of the groove. The cover plate cooperates with the groove to form the second liquid channel. The inner side of the bottom shell is also provided with a sink adapted to the cover plate. The cover plate is installed in the sink, and the groove is provided on the bottom wall of the sink.

10. The vacuum cleaner floor brush according to claim 1, characterized in that: It also includes a liquid storage box, a liquid outlet joint is provided at the bottom of the liquid storage box, and the liquid inlet end is connected to the liquid outlet joint.

11. The vacuum cleaner floor brush according to claim 10, characterized in that: The floor brush host includes an upper cover, a first groove is formed on the surface of the upper cover, a liquid inlet is formed on the bottom wall of the first groove, the liquid storage tank is detachably connected to the upper cover, and the liquid outlet connector is connected to the liquid inlet; A sealing member is disposed in the first groove, and the sealing member forms an annular inclined surface. A deformation cavity is formed between the annular inclined surface and the groove wall of the first groove. The liquid outlet joint is inserted into the sealing member and abuts against the annular inclined surface, so that the annular inclined surface is deformed toward the deformation cavity.

12. The vacuum cleaner floor brush according to claim 11, characterized in that: The end of the annular inclined surface close to the liquid inlet is provided with a step protruding inwardly, the step abutting against the groove wall of the first groove and being located at the periphery of the liquid inlet; The sealing member also includes a connecting end extending along the step in a direction away from the liquid outlet joint, the connecting end including a first connecting end and a second connecting end connected in a bent manner, the first connecting end being provided with a through hole connected to the first groove, the first connecting end being accommodated in the liquid inlet and abutting against the wall surface of the liquid inlet, and the second connecting end being located at the periphery of the liquid inlet and abutting against the outer bottom wall of the first groove.

13. The vacuum cleaner floor brush according to claim 12, characterized in that: It also includes a liquid inlet joint, which abuts against a surface of the second connection end away from the liquid outlet joint, and an opening of the liquid inlet joint is communicated with the liquid inlet.

14. The vacuum cleaner floor brush according to claim 12, characterized in that: One end of the annular inclined surface away from the liquid inlet is bent outward and extended to form a connecting portion. The upper cover is provided with a second groove surrounding the first groove, and the connecting portion is accommodated in the second groove.

15. The vacuum cleaner floor brush according to claim 12, characterized in that: The liquid storage box includes a box body and a box cover. A liquid storage cavity is formed inside the box body. The box cover is provided with a liquid injection port and a sealing assembly for sealing the liquid injection port. The liquid injection port and the liquid outlet joint are both connected to the liquid storage cavity.

16. The vacuum cleaner floor brush according to claim 15, characterized in that: The floor brush host also includes a base, which is connected to the upper cover to form a accommodating cavity. A driving device is provided in the accommodating cavity. A floor wiping piece is provided at the bottom of the base, and the floor wiping piece is connected to the output execution end of the driving device. The driving device is used to drive the floor wiping piece to reciprocate along a preset direction.

17. The vacuum cleaner floor brush according to claim 15, characterized in that: The liquid storage tank is provided with a bayonet on one side close to the front end of the floor brush host, and the front end side wall of the upper cover is provided with a tenon corresponding to the bayonet; the bottom wall of the box body is provided with a hook protruding outward, and the hook includes a third connecting portion and a fourth connecting portion that are connected to each other and intersecting, and the third connecting portion is also connected to the bottom wall of the box body, and the third connecting portion and the fourth connecting portion enclose the bayonet, and the fourth connecting portion is arranged obliquely relative to the bottom wall of the box body; And / or, a accommodating groove is provided on one side of the liquid storage tank close to the rear end of the floor brush host, and a telescopic tongue is provided in the accommodating groove; a docking groove is provided on the rear side of the upper cover corresponding to the telescopic tongue, and the telescopic tongue is used to extend into the docking groove to connect the liquid storage tank and the upper cover.

18. The vacuum cleaner floor brush according to claim 16, characterized in that: The driving device includes at least two groups of driving components, which are arranged at intervals and respectively connected to the floor-cleaning members, so that the floor-cleaning members perform reciprocating motion on the ground when vacuuming.

19. The vacuum cleaner floor brush according to claim 18, characterized in that: The floor wiping members include two, the two floor wiping members are arranged at intervals, and the driving assembly includes A connecting shaft comprising a first journal and a second journal connected in an offset manner; A first crank, one end of which is rotatably mounted on the first journal and the other end of which is hingedly connected to the floor wiping member; as well as One end of the second crank is rotatably sleeved on the second shaft journal, and the other end is hinged to the other floor wiping member.

20. The vacuum cleaner floor brush according to claim 19, characterized in that: The driving device also includes a driving motor, and the connecting shaft is formed with a first axial hole passing through the first shaft neck and the second shaft neck, the first axial hole deviates from the center of the first shaft neck and the second shaft neck, and the connecting shaft is sleeved on the motor shaft of the driving motor through the first axial hole.

21. The vacuum cleaner floor brush according to claim 20, characterized in that: The drive components include two, the drive motor is a dual-axis motor, the two motor shafts of the drive motor are respectively facing one of the drive components, the dual-axis motor is located between the two drive components, and the connecting shafts of the two drive components are respectively sleeved on the two motor shafts of the dual-axis motor through their respective first shaft holes.

22. The vacuum cleaner floor brush according to claim 16, characterized in that: An air inlet is provided at the bottom of the floor brush host, and the floor brush host is provided with a dust collection pipe connected to it and communicated with the air inlet. A sealing component is provided in the air duct of the air inlet, and the sealing component blocks the rear end of the air inlet so that the airflow from the air inlet is reflected by the sealing component and flows into the dust collection pipe.

23. The vacuum cleaner floor brush according to claim 22, characterized in that: The base includes a bottom plate and side plates connected to the bottom plate and extending toward the ground. The bottom plate bends and extends toward the ground at the air inlet to form a baffle. The air inlet is located between the baffle and the side plates. The baffle and the side plates cooperate to form an air duct of the air inlet.

24. The vacuum cleaner floor brush according to claim 23, characterized in that The sealing assembly includes a mounting member and a guide member provided on the mounting member, the mounting member is detachably connected to the baffle, one end of the guide member abuts against the end wall of the open end of the dust collecting pipe, and the other end contacts the ground during dust collection.

25. The vacuum cleaner floor brush according to claim 22, characterized in that The dust collection pipeline comprises: A tube body, with both ends of the tube body open, a dust suction duct extending from one end to the other end of the tube body, and at least one opening formed on the outer wall of the tube body; At least one cover is provided on the tube body, and the cover covers the opening.

26. The vacuum cleaner floor brush according to claim 16, characterized in that Also includes: A base is detachably connected to the floor-cleaning member, and a side of the base facing away from the floor-cleaning member is used for installing a cleaning cloth.

27. The vacuum cleaner floor brush according to claim 1, characterized in that: It also includes a rotating joint, which includes a first joint and a second joint. The second joint is rotatably connected to one end of the first joint, and the other end of the first joint is rotatably connected to the floor brush host. The first joint can rotate relative to the floor brush host in a first direction, and the second joint can rotate relative to the first joint in a second direction, and the first direction is different from the second direction.

28. A vacuum cleaner, characterized in that: The utility model comprises a vacuum cleaner body and a vacuum cleaner floor brush according to any one of claims 1 to 27 connected to the vacuum cleaner body.

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