CN216135794U

CN216135794U - Floor cleaning machine

Info

Publication number: CN216135794U
Application number: CN202120306314.XU
Authority: CN
Inventors: 杨勇
Original assignee: Shenzhen 3irobotix Co Ltd
Current assignee: Shenzhen 3irobotix Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2022-03-29
Anticipated expiration: 2031-02-03

Abstract

A floor scrubber, comprising: the operation portion, the scrubbing brush subassembly, the organism includes liquid recovery pipeline, and the intercommunication is at the dirty water tank of liquid recovery pipeline one end to and be used for forming the evacuation subassembly of negative pressure, the scrubbing brush subassembly includes: a housing; the rolling brush comprises a front rolling brush and a rear rolling brush, and the axes of the rear rolling brush and the front rolling brush are parallel to each other; the sewage import sets up in the casing, and the sewage import includes main import, with the preceding import and the back mouth of main import intercommunication, and the round brush setting forward is advanced to the mouthful face, and the round brush setting backward is advanced to the back mouthful face, and main import and preceding import and back mouth intercommunication, main import are through the upper shed of its upper end and liquid recovery pipeline's lower extreme intercommunication, and preceding import, main import, back mouth are arranged along the fore-and-aft direction in proper order, preceding import and back mouth all be located preceding round brush with between the round brush. The application provides a floor scrubber, sewage recovery efficiency is higher, and is clean effectual.

Description

Floor cleaning machine

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of cleaning equipment, in particular to a floor washing machine.

[ background of the utility model ]

The floor washing machine, which can be called as a floor washing machine, is increasingly popular among users as a household cleaning appliance, and particularly, the wireless floor washing machine product is popular among users because the wireless floor washing machine product is powered by a battery and is not limited by a power line when in use. With the development of floor washing machines, users are concerned more and more about the cleaning efficiency of the floor washing machines. The double-roller brush can quickly and efficiently clean the ground, and is more and more popular among users.

One type of floor scrubber currently marketed has only one rolling brush and a sewage recovery inlet, which is significantly less effective than the 2-rolling brush products. In another product, although the double rolling brushes are provided, suction is not provided, or suction is provided but the sewage inlet is not arranged close to the rolling brushes, namely, water collected to the sewage recovery device by the rolling brushes can not be quickly drained, so that the working efficiency is low.

[ Utility model ] content

The utility model aims to provide a floor washing machine which can quickly recover sewage collected by a rolling brush in an auxiliary way and efficiently finish the work of cleaning the ground.

The purpose of the utility model is realized by the following technical scheme:

a floor scrubber, comprising: the organism, the handheld portion that is used for gripping that is located organism one end is located the scrubbing brush subassembly of the organism other end, the organism includes liquid recovery pipeline, and the intercommunication is in the dirty water tank of liquid recovery pipeline one end to and be used for forming the evacuation subassembly of negative pressure, the scrubbing brush subassembly includes:

a housing having opposing front and rear portions;

the rolling brush comprises a front rolling brush arranged at the front part of the shell and a rear rolling brush arranged at the rear part of the shell, and the axes of the rear rolling brush and the front rolling brush are parallel to each other;

the sewage inlet is arranged on the shell and comprises a main inlet, a front inlet and a rear inlet, the front inlet is arranged facing the front rolling brush, the rear inlet is arranged facing the rear rolling brush, the main inlet is communicated with the front inlet and the rear inlet, the main inlet is communicated with the lower end of the liquid recovery pipeline through an upper opening at the upper end of the main inlet, the front inlet, the main inlet and the rear inlet are sequentially arranged along the front-rear direction, and the front inlet and the rear inlet are positioned between the front rolling brush and the rear rolling brush; under the action of negative pressure, the sewage collected by the front rolling brush and the rear rolling brush in an auxiliary mode is sucked by the front inlet and the rear inlet respectively, collected to the main inlet, flows into the dirty water tank through the liquid recovery pipeline and is temporarily stored in the dirty water tank.

In one embodiment, the primary inlet is substantially equidistant from the front inlet and the rear inlet, respectively.

In one embodiment, the front inlet faces a portion of the outer surface of the front roller brush, and the rear inlet faces a portion of the outer surface of the rear roller brush.

In one embodiment, when the front rolling brush and the rear rolling brush are driven to rotate, the linear velocity direction of the contact position of the front rolling brush and the ground is directed to the side of the forward entrance, and the linear velocity direction of the contact position of the rear rolling brush and the working surface is directed to the side of the rear entrance.

In one embodiment, an anti-backflow tank is disposed below the primary inlet, and the anti-backflow tank has a water storage cavity for temporarily storing sewage flowing down from the primary inlet after the vacuum pumping assembly stops operating.

In one embodiment, the front inlet and the main inlet have a front abutting wall at the abutting intersection, the rear inlet and the main inlet have a rear abutting wall at the abutting intersection, and the bottom of the backflow prevention tank is configured to be lower than the front abutting wall and/or the rear abutting wall.

In one embodiment, the lower end of the main inlet is provided with a lower opening, and the projection of the lower opening on the working surface of the floor brush assembly falls within the range of the projection of the backflow-preventing groove on the working surface.

In one embodiment, the cleaning device further comprises a front water spraying plate arranged to face the front rolling brush and a rear water spraying plate arranged to face the rear rolling brush, wherein the front water spraying plate and the rear water spraying plate are both communicated with a water source, and cleaning water is sprayed to the front rolling brush through the front water spraying plate and is sprayed to the rear rolling brush through the rear water spraying plate.

In one embodiment, the device further comprises a liquid pump including a first liquid pump and a second liquid pump, the water inlet ends of the first liquid pump and the second liquid pump are both communicated with a water source, the water outlet end of the first liquid pump is communicated with the front water spraying plate, the water outlet end of the second liquid pump is communicated with the rear water spraying plate, the first liquid pump is used for pressurizing water and spraying the pressurized water to the front rolling brush through the front water spraying plate, and the second liquid pump is used for pressurizing water and spraying the pressurized water to the rear rolling brush through the rear water spraying plate.

In one embodiment, the projection of the front inlet on the working surface of the floor brush assembly and the projection of the front rolling brush on the working surface have at least an overlapping part, and the projection of the rear inlet on the working surface of the floor brush assembly and the projection of the rear rolling brush on the working surface have at least an overlapping part.

Compared with the prior art, the utility model has the following beneficial effects: the application provides a floor washing machine, through setting up the preceding import of the preceding round brush that faces forward, and the back mouth of the round brush that faces backward, preceding import all communicates with liquid recovery pipeline through main import with back import, so, under the negative pressure effect, by the supplementary sewage of collecting of round brush by preceding import and back mouth suction, collect to main import, flow into dirty water tank through liquid recovery pipeline, the temporary storage can improve the efficiency that sewage was discharged away in dirty water tank, the clean effect of guarantee floor washing machine.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic view of a scrubber provided in accordance with an embodiment of the present application.

FIG. 2 is a schematic cross-sectional view of the scrubber shown in FIG. 1.

FIG. 3 is a schematic top view of the floor brush assembly of the scrubber of FIG. 1.

FIG. 4 is an enlarged schematic view of the floor brush assembly A of the floor scrubbing machine of FIG. 2.

[ detailed description ] embodiments

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1-2, an embodiment of the present application provides a floor washing machine 100, which includes a hand-held portion 12, a machine body 10, and a floor brush assembly 30.

The hand-held portion 12 is used for being operated and held by a user. The handle 12 is connected to the floor brush assembly 30, and a user holds the handle 12 to manipulate the floor brush assembly 30 to perform a cleaning task on a floor surface. In one implementation, the hand-held portion 12 is capable of standing stably above the floor brush assembly 30 in an unused state, and the floor washing machine 100 may also be referred to as a vertical floor washing machine.

Referring to fig. 4, the floor brush assembly 30 includes a housing 37 and a drum brush provided on the housing 37, the drum brush being driven to rotate at a high speed to mop the floor. In order to secure the mopping efficiency, the number of the roll brushes is two, respectively, the front roll brush 341 and the rear roll brush 342. The housing 37 has opposite front and rear portions, the front roll brush 341 being provided at the front portion of the housing 37, and the rear roll brush 342 being provided at the rear portion of the housing 37. In this embodiment, the front rolling brush 341 and the rear rolling brush 342 are disposed in parallel, and are at least partially accommodated in the housing 37, and a space is formed between the front rolling brush 341 and the rear rolling brush 342 to form an installation space. In one embodiment, the front rolling brush may comprise one rolling brush or a plurality of small rolling brushes, and the plurality of small rolling brushes may be arranged in the front of the shell laterally side by side or in the front and back side by side just as a whole relatively close to the front end of the shell.

The floor brush assembly 30 further includes a water spray plate disposed in the installation space between the front and

rear roll brushes

341 and 342. Specifically, the water spray plates include a front water spray plate 361 disposed to face the front roll brush 341, and a rear water spray plate 362 disposed to face the rear roll brush 342. Scrubbing brush subassembly 30 still is equipped with the sewage import for the subaerial remaining sewage of suction after clean, thereby with sewage recovery, so, the water spray board outwards sprays water, and sewage after the cleanness is retrieved through the sewage import, thereby washes, drags, inhales the cyclic process to ground.

The body 10 includes a cleaning solution container 50, a dirty water tank 40, and a vacuum pumping assembly 20. The cleaning solution container 50 is used to store cleaning water, communicates with the water spray plate, and is used to wet the roll brush and the floor. And a dirty water tank 40 for recovering the sewage. The vacuum pumping assembly 20 is used to create a negative pressure to draw sewage on the floor into the dirty water tank 40. The machine body 10 further comprises a liquid recovery pipeline 13, one end of the liquid recovery pipeline 13 is communicated with the dirty water tank 40, the other end of the liquid recovery pipeline 13 is communicated with the sewage inlet of the scrubbing brush assembly 30, under the action of negative pressure, the sewage on the ground is sucked from the sewage inlet, flows into the dirty water tank 40 through the liquid recovery pipeline 13 and is temporarily stored in the dirty water tank 40.

In a particular embodiment, the evacuation assembly 20 includes a motor (not shown) and an impeller (not shown), the motor driving the impeller to rotate to generate the negative pressure. Further, in order to improve the portability of the scrubber 100, the battery pack 60 is used for supplying power, and referring to fig. 2, the battery pack 60 is disposed in the machine body 10 and electrically connected to the motor to provide power for the operation of the motor.

In this embodiment, referring to fig. 1 and 2, the body 10 is connected above the floor brush assembly 30, the hand-held portion 12 is connected to the body 10, the body 10 and the hand-held portion 12 are connected to the floor brush assembly 30 as a whole, and the user holds the hand-held portion 12 and manipulates the body 10 and the floor brush assembly 30 during a cleaning operation. In this embodiment, body 10 lengthwise extends, and handheld portion 12 connects in the upper end of body 10, and scrubbing brush subassembly 30 connects in the lower extreme of body 10, and body 10 passes through the rotatable setting of adapter 15 with scrubbing brush subassembly 30 for handheld portion 12 and body 10 can rotate scrubbing brush subassembly 30 relatively, thereby change operating angle, nimble adjustment washing gesture.

The body 10 communicates the dirty water tank 40 with the dirty water inlet of the floor brush assembly 30 through the liquid recovery pipe 13 to form a dirty water recovery passage, and forms the cleaning liquid container 50 with the floor brush assembly 30 through a clean water supply line (not shown) to form a cleaning water supply passage. Wherein liquid recovery pipeline 13 and clear water supply line are flexible hose, pass adapter 15, are connected with scrubbing brush subassembly 30, can be along with adapter 5's rotation and the adjustment gesture of adaptability.

In other embodiments, the body 10 may be separated from the floor brush assembly 30 and the handle 12, and the liquid recovery pipe 15 and the clean water supply pipe are partially disposed outside and connected between the body 10 and the floor brush assembly 30. The liquid recovery pipe 15 and the clean water supply pipe are both flexible hoses, so that the machine body 10 can be kept still during the cleaning operation, and only the floor brush assembly 30 and the hand-held portion 12 are operated, so that the corresponding operation volume is smaller, the weight is lighter, and the operation comfort is improved.

In this embodiment, referring to fig. 3 and 4, the floor brush assembly 30 further includes a liquid pump for pumping the water in the cleaning liquid container 50 and pumping the water to the water spraying plate, and the cleaning water is sprayed out from the water spraying plate, either on the ground or in the air, in this embodiment, the liquid is basically sprayed on the corresponding surface of the rolling brush. Because the floor cleaning machine 100 provided by the embodiment is provided with the two rolling brushes, the water adding amount of the two rolling brushes can be flexibly controlled, and the cleaning efficiency is improved. Further, the number of the liquid pumps is two, and the liquid pumps include a first liquid pump 31 and a second liquid pump 32, wherein the water inlet ends of the first liquid pump 31 and the second liquid pump 32 are both communicated with the cleaning container 50, the water outlet end of the first liquid pump 31 is communicated with the front water spraying plate 361, the water outlet end of the second liquid pump 32 is communicated with the rear water spraying plate 362, the first liquid pump 31 is used for pumping the water in the cleaning container and spraying the pressurized water to the front rolling brush 341 through the front water spraying plate 361, and the second liquid pump 32 is used for pumping the water in the cleaning container 50 and spraying the pressurized water to the rear rolling brush 342 through the rear water spraying plate 362. In another embodiment, the cleaning liquid container can be clean water, or the cleaning liquid and the clean water can be mixed or simply the cleaning liquid. The present application is described with reference to clear water as an example.

The scrubber 100 further includes a control panel (not shown) for controlling the operating frequency of the first and second liquid pumps 31 and 32, respectively, to adjust the watering flow rates of the front and rear

water spray plates

361 and 362, respectively, to control the watering amounts of the front and rear roll brushes 341 and 342. Because the water adding of the front rolling brush 341 and the rear rolling brush 342 is controlled by the first liquid pump 31 and the second liquid pump 32 respectively, the water adding of the two rolling brushes is more flexibly controlled, and the control is convenient and effective, thereby ensuring the mopping effect of the floor washing machine.

Referring to fig. 3, the first liquid pump 31 and the second liquid pump 32 are respectively disposed on the left and right sides of the housing 37. Specifically, the first liquid pump 31 is disposed on the right side of the casing 37, and the second liquid pump 32 is disposed on the left side of the casing 37, that is, one liquid pump is disposed on each of the left and right sides of the casing 37, and the arrangement of the two liquid pumps in the floor brush assembly 30 is reasonable, which is beneficial to the volume uniformity and miniaturization of the floor brush assembly 30. The positions of the first liquid pump 31 and the second liquid pump 32 may be interchanged, the first liquid pump 31 may communicate with the rear water jet plate 362, and the second liquid pump 32 may communicate with the front water jet plate 361, which is not limited herein. Fig. 3 shows a top view of the floor brush assembly, wherein the floor brush assembly 30 has a middle section S perpendicular to the front roller 341 and the rear roller 342, the middle section S is perpendicular to the paper surface of fig. 3, and thus shows only one straight line, the middle section S is located in the middle of the housing 37, and approximately divides the housing 37 into two symmetrical halves, and the first liquid pump 31 and the second liquid pump 32 are symmetrically disposed in the housing 37 about the middle section S. The terms "left" and "right" refer to the directions of the arrows shown in fig. 3 as "front" directions, the left side of the body as left, and the right side as right, respectively, when the user operates the floor washing machine 100. In the embodiments of the present application, the terms "upper", "lower", "front", "rear", "left", "right", and the like are used with reference to the state of the floor washing machine shown in fig. 1, and the above description is only for illustrative purposes and should not be construed as limiting the present application.

The first and second liquid pumps 31 and 32 are each located between the front and rear roll brushes 341 and 342. Because the interval is arranged between the front rolling brush 341 and the rear rolling brush 342, an existing installation space is formed, and the first liquid pump 31 and the second liquid pump 32 are both arranged in the interval, the influence on the volume of the floor brush assembly 30 is small, so that the floor brush assembly 30 is more compact and smaller. In other embodiments, the projection of the first liquid pump 31 onto the working surface of the floor brush assembly 30 at least partially overlaps the projection of the front drum brush 341 and/or the rear drum brush 342 onto the working surface, or the projection of the second liquid pump 32 onto the working surface of the floor brush assembly 30 at least partially overlaps the front drum brush 341 and/or the rear drum brush 342.

Specifically, the first liquid pump 31 and the second liquid pump 32 are disposed in the housing 37 and are symmetrical to each other, so that the mass distribution of the floor brush assembly 30 is balanced, and the floor brush assembly is not exposed, and the appearance of the floor brush assembly is more beautiful.

In this embodiment, continuing to refer to FIG. 3, the scrubber assembly includes a three-way valve 35, the three-way valve 35 including a first port, a second port, and a third port. The first port is communicated with the cleaning liquid container 50 through a first water inlet pipe 391, the second port is communicated with the water inlet end of the first liquid pump 31 through a second water inlet pipe 392, and the third port is communicated with the water inlet end of the second liquid pump 32 through a third water inlet pipe 393. The first liquid pump 31 communicates with the front spray plate 361 through a first outlet pipe 394, and the second liquid pump 32 communicates with the rear spray plate 362 through a second outlet pipe 395. The first water inlet pipe 391 may also be directly connected to the cleaning liquid container 50, that is, as a part of the clean water supply pipeline, connected between the three-way valve 35 and the cleaning liquid container 50.

Clear water is sprayed on the rolling brush or the ground, sewage is generated after the rolling brush is dragged, the sewage is sucked and recovered as soon as possible, and the risk of secondary pollution to the ground caused by the sewage is reduced. In one embodiment, referring to FIG. 4, the sewage inlet of the floor brush assembly 30 includes a main inlet 33, a forward inlet 330 and a rear inlet 332, and the main inlet 33 is communicated with both the forward inlet 330 and the rear inlet 332. Specifically, the primary inlet 33 communicates with the liquid recovery conduit 13 through an upper opening 336 at its upper end, and the primary inlet 33 communicates with both the forward inlet 330 and the rearward inlet 332 through a lower opening 338 at its lower end. The front inlet 330 is disposed to face at least a portion of an outer surface of the front roll brush 341, and the rear inlet 332 is disposed to face at least a portion of an outer surface of the rear roll brush 342. The main inlet 33, the front inlet 330 and the rear inlet 332 are all positioned between the front rolling brush 341 and the rear rolling brush 342, and under the action of negative pressure, sewage collected by the front rolling brush 341 and the rear rolling brush 342 is sucked by the front inlet 330 and the rear inlet 332, collected to the main inlet 33, flowed into the dirty water tank 40 through the liquid recovery pipeline 13, and temporarily stored in the dirty water tank 40. Specifically, the forward inlet 330, the main inlet 33, and the rear inlet 332 are arranged in this order in the front-rear direction, and the main inlet 33 is substantially the same distance from the forward inlet 330 and the rear inlet 332, respectively.

Therefore, the front inlet 330 is arranged at the position adjacent to the front rolling brush 341, and the rear inlet 332 is arranged at the position adjacent to the rear rolling brush 342, so that the sewage at the contact position of the rolling brush and the ground can be sucked and recovered as soon as possible, the sewage recovery efficiency is improved, and the cleaning effect is guaranteed. To ensure the sewage suction efficiency, further, the front inlet 330 is faced to a part of the outer surface of the front roll brush 341, and the rear inlet 332 is faced to a part of the outer surface of the rear roll brush 342. This position is adjacent to the position where the roll brush is in contact with the ground, where the sewage is generated and collected, and the front and

rear inlets

330 and 332 can timely recover the sewage.

In a specific embodiment, the projection of the front inlet 330 onto the working surface of the floor brush assembly 30 has an overlapping portion with the projection of the front roll brush 341 onto the working surface, and correspondingly, the projection of the rear inlet 332 onto the working surface of the floor brush assembly 30 has an overlapping portion with the projection of the rear roll brush 342 onto the working surface. Thus, the front inlet 330 is adjacent to the front roll brush 341, the rear inlet 332 and the rear roll brush 342, ensuring high sewage recovery efficiency.

In one embodiment, the rotation directions of the front and rear rolling brushes 341 and 342 are set to be opposite to each other, and the front rolling brush 341 is set to rotate counterclockwise and the rear rolling brush 342 rotates clockwise with reference to the state of the floor washing machine shown in fig. 4, and in the case where the front and rear rolling brushes 341 and 342 are driven to rotate, the linear velocity direction of the contact position of the front rolling brush 341 with the floor is directed to the side of the front inlet 330 and the linear velocity direction of the contact position of the rear rolling brush 342 with the work surface is directed to the side of the rear inlet 332. Thereby, along with the direction of motion of the rotatory sewage of being driven of round brush, towards the direction that corresponds sewage import, the sewage of being convenient for is direct to the sewage import direction motion that corresponds under the inertial action, improves sewage recovery's efficiency, guarantees clean effect.

It can be understood that the cleaning liquid container 50 can provide clean water for mopping the floor, the clean water is sprayed to the roller brush with fluff through the built-in clean water supply pipeline, the roller brush rotates at high speed to mop the floor, then the sewage after mopping the floor by the roller brush enters the pipeline through the sewage inlets arranged at the front and the back of the floor brush assembly 30, the power is provided by the motor, negative pressure and air flow are formed in the sewage inlet and the liquid recovery pipeline 13, the water in the sewage inlet and the liquid recovery pipeline 13 is driven to enter the dirty water tank 40, and the processes of washing, mopping and sucking are completed. However, the liquid recycling pipe 13 must have a certain length, and in the process that sewage enters the dirty water tank 40 through the sewage inlet and the liquid recycling pipe 13, it must be that sewage exists in each section of the liquid recycling pipe continuously, when a user finishes one-time work, when the floor cleaning machine is turned off, because the vacuumizing assembly 20 stops working, the speed of water flow in the liquid recycling pipe 13 is slower than the speed of air flow, at this time, a small amount of sewage which is not completely recycled must be remained in the liquid recycling pipe 13, when the vacuumizing assembly 20 stops working, the sewage flows to the ground under the action of gravity, the flowing sewage drops on the ground, the ground is polluted again, the user needs to adopt other means to clean, and the use experience is very bad.

In order to solve the above problem, in the floor washing machine according to an embodiment of the present invention, referring to fig. 4, a backflow preventing groove 39 is disposed below the main inlet 33, and the backflow preventing groove 39 forms a water storage cavity for temporarily storing the sewage flowing down from the main inlet 33 after the vacuum pumping assembly 20 stops working. Because the main inlet 33 is communicated with the lower end of the liquid recovery pipeline 13, when the vacuumizing assembly 20 stops working, sewage in the pipeline flows to the ground under the action of gravity, flows to the anti-backflow groove 39 below and is temporarily stored in the water storage concave cavity, so that the sewage cannot flow to the ground, and the trouble of secondary cleaning is avoided.

To ensure that the dirt water does not drip outside the scope of the anti-drainback tank, the anti-drainback tank 37 is positioned such that its projection onto the working surface of the floor brush assembly 30 covers the projection of the opening of the main inlet 33 onto the floor. That is, the projection of the opening of the main inlet 33 on the working surface of the floor brush assembly 30 falls within the range of the projection of the backflow prevention groove 37 on the working surface. Further, the water storage cavity is arranged such that a projection of the opening of the primary inlet 33 onto the working surface of the floor brush assembly 30 covers a projection of the opening of the primary inlet 33 onto the working surface, the projection of the opening of the primary inlet 33 onto the working surface being within the range of the projection of the water storage cavity onto the working surface. Wherein the work surface, which should be understood as the work plane of the floor brush assembly 30, is typically the floor, substantially horizontal.

In one embodiment, referring to FIG. 4, the forward inlet 330 has a forward abutment wall 3301 at the adjacent intersection with the primary inlet 33, the aft inlet 332 has an aft abutment wall 3321 at the adjacent intersection with the primary inlet 33, and the bottom of the anti-drainback tank 39 is configured to be lower than the forward abutment wall 3301 and/or the aft abutment wall 3321. So, the anti-return tank is sunken to being less than the adjacent lower surface of front inlet 330 and back mouth 332, and sewage is saved in the water storage concave cavity under the action of gravity, and as long as the volume of water storage concave cavity sets up rationally, can reduce sewage overflow to the front inlet and on the lower surface of back import, flow out to ground and cause the risk of pollution.

The above is only one embodiment of the present invention, and any other modifications based on the concept of the present invention are considered as the protection scope of the present invention.

Claims

1. A floor scrubber, comprising: the organism, the handheld portion that is used for gripping that is located organism one end is located the scrubbing brush subassembly of the organism other end, the organism includes liquid recovery pipeline, and the intercommunication is in the dirty water tank of liquid recovery pipeline one end to and be used for forming the evacuation subassembly of negative pressure, its characterized in that, the scrubbing brush subassembly includes:

a housing having opposing front and rear portions;

2. The floor scrubber of claim 1, wherein the primary inlet is approximately the same distance from the front inlet and the rear inlet, respectively.

3. The floor washing machine of claim 1, wherein the front inlet faces a portion of an outer surface of the front roll brush and the rear inlet faces a portion of an outer surface of the rear roll brush.

4. The floor washing machine according to claim 1, wherein a linear velocity direction of a ground contact position of the front roll brush is directed to the forward entrance side and a linear velocity direction of a work surface contact position of the rear roll brush is directed to the rear entrance side in a case where the front roll brush and the rear roll brush are driven to rotate.

5. The floor scrubber of claim 1, wherein an anti-drainback tank is positioned below the primary inlet, the anti-drainback tank having a water storage cavity for temporarily storing sewage flowing from the primary inlet after the evacuation assembly is deactivated.

6. The scrubber of claim 5, wherein the forward inlet adjacent intersection with the primary inlet has a forward abutment wall, the rearward inlet adjacent intersection with the primary inlet has a rearward abutment wall, and a bottom of the anti-drainback tank is configured to be lower than the forward abutment wall and/or the rearward abutment wall.

7. The floor scrubber of claim 5, wherein a lower end of the primary inlet is provided with a lower opening, a projection of the lower opening onto a work surface of the floor brush assembly falling within a range of a projection of the anti-drainback tank onto the work surface.

8. The floor washing machine of claim 1, further comprising a front water spray plate disposed facing the front roll brush and a rear water spray plate disposed facing the rear roll brush, both the front water spray plate and the rear water spray plate being in communication with a water source, cleaning water being sprayed through the front water spray plate toward the front roll brush and through the rear water spray plate toward the rear roll brush.

9. The floor washing machine of claim 8, further comprising a liquid pump including a first liquid pump and a second liquid pump, the first liquid pump and the second liquid pump each having a water inlet end in communication with a water source, the first liquid pump having a water outlet end in communication with the front water spray plate and a water outlet end in communication with the rear water spray plate, the first liquid pump being configured to pressurize the water and spray the pressurized water through the front water spray plate toward the front roll brush, and the second liquid pump being configured to pressurize the water and spray the pressurized water through the rear water spray plate toward the rear roll brush.

10. The scrubber of claim 1, wherein a projection of the front inlet onto the work surface of the floor brush assembly has at least an overlapping portion with a projection of the front roller brush onto the work surface, and wherein a projection of the rear inlet onto the work surface of the floor brush assembly has at least an overlapping portion with a projection of the rear roller brush onto the work surface.