Floor washing machine

Abstract

The application discloses a floor cleaning machine, which comprises an operation part, a cleaning seat part connected with the operation part, a main body connected with the cleaning seat part, wherein the main body is provided with a dirt recovery tank and a dirt recovery pipe communicated between the dirt recovery tank and the cleaning seat part; the cleaning seat part comprises a front cleaning roller, a rear cleaning roller, a total inlet communicated with a lower end of the dirt recovery pipe, a front drainage branch and a rear drainage branch, one end of the front drainage branch is communicated with the total inlet, and the other end of the front drainage branch is arranged to face the front cleaning roller; one end of the rear drainage branch is communicated with the total inlet, and the other end of the rear drainage branch is arranged to face the rear cleaning roller; the front drainage branch and the rear drainage branch are used for guiding the sewage collected by the front cleaning roller and the rear cleaning roller respectively to the total inlet; and the height of an inner side upper surface of the front drainage branch adjacent to the total inlet is different from the height of an inner side upper surface of the rear drainage branch adjacent to the total inlet. The floor cleaning machine provided by the application can inhibit the impact of the sewage on the total inlet and has higher sewage climbing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a floor cleaning machine. BACKGROUND

[0002] As a cleaning household appliance, the floor cleaning machine is more and more popular among users, especially the wireless floor cleaning machine product, which is particularly favored by users because it is powered by a battery and is not restricted by a power cord during use. With the development of the floor cleaning machine product, users pay more and more attention to the cleaning efficiency of the floor cleaning machine product. Since the double cleaning rollers can complete the ground cleaning more quickly and efficiently, they are also more and more favored by users.

[0003] The floor cleaning machine products currently sold on the market are of two types. One type has only one cleaning roller and one dirty water recovery suction port, and this type of product has a lower cleaning efficiency than the product with two cleaning rollers. The other type of product uses double cleaning rollers, and a front drainage branch and a rear drainage branch corresponding to each cleaning roller are arranged, and the front drainage branch and the rear drainage branch are both communicated with a dirty water recovery pipe through a total inlet. When the user cleans the ground, the dirty water and dirt are sucked into the total inlet through the front drainage branch and the rear drainage branch. The total inlet is used to collect the dirty water from the front and rear drainage branches, and the dirty water from the front drainage branch and the rear drainage branch moves in opposite directions. The dirty water from the front drainage branch and the dirty water from the rear drainage branch collide with each other in the total inlet, which causes the dirty water to be unable to be effectively sucked into the recovery tank by the air duct above the total inlet.

[0004] Therefore, it is particularly important to ensure that the dirty water and dirt are more easily sucked into the recovery tank by the air duct above the total inlet. SUMMARY

[0005] The purpose of the present application is to provide a floor cleaning machine that can quickly recover the dirty water collected by the cleaning rollers and efficiently complete the work of cleaning the floor.

[0006] The purpose of the present application is achieved by the following technical solutions:

[0007] A floor cleaning machine comprises a main body, an operating part at one end of the main body for holding, a cleaning seat part at the other end of the main body, and a dirty water recovery tank and a dirty water recovery pipe communicated between the dirty water recovery tank and the cleaning seat part arranged on the main body.

[0008] The cleaning seat part comprises:

[0009] a front cleaning roller;

[0010] a rear cleaning roller arranged in a spaced-apart manner with the front cleaning roller, the front cleaning roller and the rear cleaning roller supporting the cleaning seat part together and determining the working surface of the cleaning seat part.

[0011] A total inlet, which is communicated with the lower end of the dirty water recovery pipe, through which the dirty water collected by the front cleaning roller and the rear cleaning roller enters the dirty water recovery pipe;

[0012] A front drainage branch and a rear drainage branch, one end of the front drainage branch is communicated with the total inlet, and the other end is arranged to face the front cleaning roller, one end of the rear drainage branch is communicated with the total inlet, and the other end is arranged to face the rear cleaning roller, the front drainage branch, the total inlet, and the rear drainage branch are arranged in sequence, the front drainage branch and the rear drainage branch are arranged between the front cleaning roller and the rear cleaning roller, the front drainage branch and the rear drainage branch are used to guide the dirty water collected by the front cleaning roller and the rear cleaning roller to the total inlet respectively, the height of the inner upper surface of the front drainage branch adjacent to the total inlet is different from the height of the inner upper surface of the rear drainage branch adjacent to the total inlet.

[0013] In one embodiment, the inner upper surface of the front drainage branch adjacent to the total inlet is lower than the inner upper surface of the rear drainage branch adjacent to the total inlet.

[0014] In one embodiment, the inner upper surface of the front drainage branch adjacent to the total inlet is 5mm-10mm lower than the inner upper surface of the rear drainage branch adjacent to the total inlet.

[0015] In one embodiment, the inner upper surface of the front drainage branch close to the total inlet is higher than the inner upper surface of the front drainage branch away from the total inlet;

[0016] The inner upper surface of the rear drainage branch close to the total inlet is higher than the inner upper surface of the rear drainage branch away from the total inlet.

[0017] In one embodiment, the side wall of the total inlet extends upwardly and upwardly towards the rear cleaning roller.

[0018] In one embodiment, the inner upper surface of at least one of the front drainage branch and the rear drainage branch extends upwardly and upwardly, and the upper surface and the working surface have an inclination angle α, the range of the inclination angle α is greater than 0° and less than 90°.

[0019] In one embodiment, the inner upper surface of the front drainage branch adjacent to the total inlet and the working surface have an inclination angle α1, and the inner upper surface of the rear drainage branch adjacent to the total inlet and the working surface have an inclination angle α2, wherein the range of the inclination angles α1 and α2 is greater than 0° and less than 45°, and α1 is not equal to α2.

[0020] In one embodiment, the inclination angle α1 is less than the inclination angle α2.

[0021] In one of the embodiments, the total inlet is further provided with an anti-backflow groove below the total inlet, and the anti-backflow groove has a water storage cavity for storing sewage flowing from the total inlet after the suction assembly stops working.

[0022] In one of the embodiments, a projection of the total inlet on the working surface falls within a projection of the water storage cavity on the working surface.

[0023] In one of the embodiments, the front drainage branch and the rear drainage branch have the same extension direction.

[0024] In one of the embodiments, the front drainage branch and the rear drainage branch both extend along the front-rear direction.

[0025] In one of the embodiments, the front drainage branch and the rear drainage branch have the same length.

[0026] In one of the embodiments, the main body extends longitudinally, the operation part is connected to the upper end of the main body, and the cleaning seat part is connected to the lower end of the main body.

[0027] In one of the embodiments, the main body and the cleaning seat part are rotatably connected.

[0028] Compared with the prior art, the washing machine has the following beneficial effects: the washing machine provided by the application is provided with a front drainage branch facing the front cleaning roller and a rear drainage branch facing the rear cleaning roller, the front drainage branch and the rear drainage branch are both communicated with the dirty water recovery pipe through the total inlet, and the height of the inner side upper surface adjacent to the total inlet of the front drainage branch is different from the height of the inner side upper surface adjacent to the total inlet of the rear drainage branch. In this way, under the action of negative pressure, the sewage collected by the cleaning roller is sucked into the front drainage branch and the rear drainage branch, converges along the surfaces with different heights, is not easy to collide, and is more likely to climb and converge into the total inlet, flows into the dirty water recovery tank through the dirty water recovery pipe, and is temporarily stored in the dirty water recovery tank, so that the efficiency of sewage removal is improved, and the cleaning effect of the washing machine is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort. Among them:

[0030] Figure 1 is a schematic diagram of the washing machine provided by an embodiment of the application.

[0031] Figure 2 is Figure 1 is a schematic view of a cross section of a cleaning seat of a scrubber.

[0032] Figure 3 is Figure 2 is an enlarged schematic view of a cross section structure at a cleaning seat A of a scrubber.

[0033] Figure 4 is an enlarged schematic view of a cross section structure at a cleaning seat of a scrubber of another embodiment.

[0034] Figure 5 is a schematic view of a top structure of a cleaning seat of a scrubber according to another embodiment. DETAILED DESCRIPTION

[0035] In order to make the above objectives, features and advantages of the present application more comprehensible and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the convenience of description. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] The terms "comprising" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0037] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, 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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0039] 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 they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0040] Referring to Figures 1 to 3 As shown in the drawings, an embodiment of the present application provides a scrubber 100, comprising a handle 12, a main body 10, a cleaning base 30, and a suction assembly 20.

[0041] The handle 12 is used for the user to hold and operate. The handle 12 is connected to the cleaning base 30, and the user holds the handle 12 to control the cleaning base 30 to perform a cleaning task on the ground. In an implementation scenario, the handle 12 can be stably erected on the cleaning base 30 in a non-use state, and the scrubber 100 can also be referred to as an upright scrubber.

[0042] In this embodiment, the main body 10 is connected above the cleaning base 30, the handle 12 is connected to the main body 10, and the main body 10, the handle 12, and the cleaning base 30 are connected as a whole. During cleaning operation, the user holds the handle 12 to control the main body 10 and the cleaning base 30. Specifically, the main body 10 is longitudinally long, the handle 12 is connected to the upper end of the main body 10, and the cleaning base 30 is connected to the lower end of the main body 10. The main body 10 and the cleaning base 30 are rotatably arranged through the adapter 15, so that the handle 12 and the main body 10 can rotate relative to the cleaning base 30, thereby changing the operation angle and flexibly adjusting the cleaning posture.

[0043] Referring to Figure 3 The cleaning base 30 comprises a shell 37 and cleaning rollers arranged on the shell 37, and the cleaning rollers are driven to rotate at a high speed to mop the ground. In order to ensure the mopping efficiency, the number of the cleaning rollers is two, which are a front cleaning roller 341 and a rear cleaning roller 342. The cleaning rollers are specifically cylindrical roller brushes. The shell 37 has opposite front and rear parts, the front cleaning roller 341 is arranged at the front part of the shell 37, and the rear cleaning roller 342 is arranged at the rear part of the shell 37. The front cleaning roller 341 and the rear cleaning roller 342 jointly support the cleaning base 30, and support the cleaning base 30 on a working surface, that is, a support surface of the front cleaning roller 341 and the rear cleaning roller 342. It can be understood that the working surface is usually a horizontal ground. Specifically, the front cleaning roller 341 and the rear cleaning roller 342 are arranged side by side, the axes of the front cleaning roller 341 and the rear cleaning roller 342 are parallel to each other, and the front cleaning roller 341 and the rear cleaning roller 342 are at least partially accommodated in the shell 37. The front cleaning roller 341 and the rear cleaning roller 342 have a spacing therebetween to form a mounting space. Referring toFigure 3 The axes of the front cleaning roller 341 and the rear cleaning roller 342 are substantially perpendicular to the front-rear direction of the housing 37.

[0044] The cleaning seat 30 further comprises a water spraying plate arranged in the installation space between the front cleaning roller 341 and the rear cleaning roller 342. Specifically, the water spraying plate comprises a front water spraying plate 361 arranged towards the front cleaning roller 341 and a rear water spraying plate 362 arranged towards the rear cleaning roller 342.

[0045] The cleaning seat 30 is further provided with a suction port between the front cleaning roller 341 and the rear cleaning roller 342 for sucking the residual sewage on the cleaned floor, so as to recycle the sewage. In this way, the water spraying plate sprays water outwardly, and the cleaned sewage is recycled through the suction port, so as to perform the cycle of washing, mopping and sucking on the floor.

[0046] The main body 10 communicates the sewage recycling tank 40 with the suction port of the cleaning seat 30 through the sewage recycling pipe 13 to form a sewage recycling channel, and communicates the clean water container 50 with the cleaning seat 30 through a clean water supply pipe (not shown) to form a cleaning water supply channel. The sewage recycling pipe 13 and the clean water supply pipe are both flexible hoses, pass through the adapter 15, and are connected with the cleaning seat 30, so as to adaptively adjust the posture along with the rotation of the adapter 15.

[0047] The main body 10 comprises the clean water container 50, the sewage recycling tank 40, the sewage recycling pipe 13 and the suction assembly 20. The clean water container 50 is used for storing cleaning water and is communicated with the water spraying plate for wetting the cleaning roller and the floor. The sewage recycling tank 40 is used for recycling sewage.

[0048] The suction assembly 20 is used for forming a negative pressure to suck the sewage on the floor into the sewage recycling tank 40. One end of the sewage recycling pipe 13 is communicated with the sewage recycling tank 40, and the other end is communicated with the suction port of the cleaning seat 30. When the suction assembly works, a negative pressure is formed in the sewage recycling pipe 13, and the sewage on the floor is sucked into the sewage recycling tank 40 through the suction port and flows into the sewage recycling tank 40 through the sewage recycling pipe 13, and is temporarily stored in the sewage recycling tank 40. In a specific embodiment, the suction assembly 20 comprises a motor and an impeller (not shown), and the motor drives the impeller to rotate to generate the negative pressure. In another specific embodiment, the suction assembly 20 can also adopt a vacuum pump to form the negative pressure.

[0049] Further, in order to improve the portability of the scrubber 100, a battery pack 60 is used for power supply. Please refer to Figure 2 The battery pack 60 is arranged in the main body 10 and is electrically connected with the motor to provide the motor with power.

[0050] In other embodiments, the main body 10 can also be separate from the cleaning seat 30 and the handle 12, and the dirty water recovery pipe 13 and the clean water supply pipe are externally connected between the main body 10 and the cleaning seat 30. The dirty water recovery pipe 13 and the clean water supply pipe are both flexible hoses, so that during cleaning operation, the main body 10 can remain stationary, and only the cleaning seat 30 and the handle 12 are operated, thereby operating a corresponding smaller volume and lighter weight, improving the comfort of operation.

[0051] The clean water is sprayed on the cleaning roller or the ground, and the cleaning roller wipes to produce dirty water. In order to facilitate the dirty water to be sucked and recovered as soon as possible, and reduce the risk of secondary pollution of the ground caused by the dirty water. In an embodiment, please refer to Figure 3 , the suction port of the cleaning seat 30 includes a total inlet 380, which is connected to the lower end of the dirty water recovery pipe 13, and the dirty water collected by the front cleaning roller 341 and the rear cleaning roller 342 is all introduced into the dirty water recovery pipe 13 through the total inlet 380. The cleaning seat 30 further includes a front drainage branch 330 and a rear drainage branch 332. One end of the front drainage branch 330 is connected to the total inlet 380, and the other end is arranged as a front suction port facing the front cleaning roller 341, for guiding the dirty water collected by the front cleaning roller 341 to the total inlet 380. Correspondingly, one end of the rear drainage branch 332 is connected to the total inlet 380, and the other end is arranged as a rear suction port facing the rear cleaning roller 342, for guiding the dirty water collected by the rear cleaning roller 342 to the total inlet 380. Finally, the dirty water is collected by the front drainage branch 330 and the rear drainage branch 332 to the total inlet 380, and is sucked into the dirty water recovery pipe 13 through the total inlet 380.

[0052] In which, the total inlet 380, the front drainage branch 330 and the rear drainage branch 332 are all located between the front cleaning roller 341 and the rear cleaning roller 342, and under the action of negative pressure, the dirty water collected by the front cleaning roller 341 and the rear cleaning roller 342 is sucked into the front drainage branch 330 and the rear drainage branch 332, and is collected to the total inlet 380, and flows into the dirty water recovery tank 40 through the dirty water recovery pipe 13, and is temporarily stored in the dirty water recovery tank 40. Specifically, the front drainage branch 330, the total inlet 380 and the rear drainage branch 332 are arranged in sequence. More specifically, the front drainage branch 330, the total inlet 380 and the rear drainage branch 332 are arranged in sequence along the front-rear direction, and the distance between the total inlet 380 and the front drainage branch 330 and the rear drainage branch 332 is substantially the same, that is, the length of the front drainage branch 330 and the rear drainage branch 332 is substantially the same. In this embodiment, the front drainage branch 330 and the rear drainage branch 332 both extend along the front-rear direction, so that the total length of the front drainage branch 330 and the rear drainage branch 332 is the shortest, the path of dirty water recovery is shorter, and the efficiency of dirty water recovery is improved.

[0053] In the embodiment, the inner side upper surface of at least one of the front drainage branch 330 and the rear drainage branch 332 extends upwardly with an inclination angle a, wherein the inclination angle a is greater than 0° and less than 90°. That is, the inner side upper surface of the front drainage branch 330 and / or the rear drainage branch 332 extends upwardly with an inclination angle a, which is not parallel to the working surface, so that the sewage along the inner side upper surface of the front drainage branch 330 and / or the rear drainage branch 332 climbs upwardly, which facilitates the sewage to flow into the dirty water recovery pipe 13 under the action of the air flow, and improves the sewage recovery efficiency. Specifically, the inclination angle a is formed at the position where the inner side upper surface of the front drainage branch 330 and the rear drainage branch 332 is adjacent to the total inlet 380. At this position, the inner side upper wall of the front drainage branch 330 and the rear drainage branch 332 is adjacent to the side wall of the total inlet 380, and a bending transition is usually adopted. At the bending position, the upper wall of the front drainage branch 330 and the rear drainage branch 332 is inclined upwardly, and then the inner side upper surface of the front drainage branch 330 and the rear drainage branch 332 extends upwardly. This shortens the path length that the sewage needs to climb, and also reduces the tortuosity of the climbing surface, which further improves the sewage climbing efficiency.

[0054] In a specific embodiment, the inclination angle a is greater than 0° and less than 45°. In another embodiment, the inclination angle a is greater than 0° and less than 30°.

[0055] In Figure 3 In the embodiment shown, the inner side upper surface 385 of the front drainage branch 330 has an inclination angle a1 with respect to the working surface, and the inner side upper surface 381 of the rear drainage branch 332 has an inclination angle a2 with respect to the working surface. The inclination angles a1 and a2 have the same range of values as the inclination angle a in the above embodiment. The values of the inclination angles a1 and a2 can be the same or different. That is, the inclination angle a1 can be equal to a2, or the inclination angle a1 can be greater than or less than the inclination angle a2.

[0056] It can be understood that the water flow that climbs along the inner side upper surface of the front drainage branch 330 and the rear drainage branch 332 flows towards the total inlet 380. In order to suppress the accumulation of the water flow along the inner side upper surface of the front drainage branch 330 and the rear drainage branch 332 at the total inlet 380, and thus to cause low water flow recovery efficiency, in an embodiment, the inclination angle a1 is set to be not equal to a2. In this way, the directions of the water flow that climbs along the inner side upper surface of the front drainage branch 330 and the rear drainage branch 332 are inconsistent, which reduces the accumulation of the water flow, and ensures the sewage recovery efficiency.

[0057] Further, the side wall of the total inlet 380 is inclined, i.e. the side wall of the total inlet 380 is not perpendicular to the working surface. The non-perpendicular arrangement allows the sewage to be supported by the inner surface of the total inlet 380 during the climbing process, thereby improving the climbing efficiency of the sewage along with the airflow. Specifically, the side wall of the total inlet 380 extends upwardly and rearwardly toward the cleaning roller 382. Further, the inclination angle a1 is set to be smaller than the inclination angle a2, which balances the sewage climbing of the front flow branch 330 and the rear flow branch 332 in cooperation with the side wall of the total inlet 380.

[0058] In another embodiment, referring to Figure 4 , the inner side upper surface 385 of the front flow branch 330 adjacent to the total inlet 380 and the inner side upper surface 381 of the rear flow branch 332 adjacent to the total inlet 380 have a difference h. In other words, the height of the inner side upper surface 385 of the front flow branch 330 adjacent to the total inlet 380 is different from the height of the inner side upper surface 381 of the rear flow branch 332 adjacent to the total inlet 380. Here, the "height" refers to the height from the working surface of the cleaning seat 30. The difference h is in the range of 5mm-10mm. The different heights of the inner side upper surface of the front flow branch 330 adjacent to the total inlet 380 and the inner side upper surface of the rear flow branch 332 adjacent to the total inlet 380 avoids the collision of the sewage at the total inlet 380 when the heights are the same, thereby reducing the sewage recovery efficiency.

[0059] In Figure 4 the embodiment shown, along the sewage recovery direction, the front flow branch 330 and the rear flow branch 332 both extend upwardly and rearwardly, and the part close to the total inlet 380 is the upper end edge. The upper end edge of the front flow branch 330 is lower than the upper end edge of the rear flow branch 332, so that the inner side upper surface of the front flow branch 330 close to the total inlet 380 is higher than the inner side upper surface of the front flow branch 330 away from the total inlet 380, and the inner side upper surface of the rear flow branch 332 close to the total inlet 380 is higher than the inner side upper surface of the rear flow branch 332 away from the total inlet 380. In this way, the front flow branch 330 and the rear flow branch 332 both extend upwardly and rearwardly toward the total inlet 380, which helps to reduce the difficulty of the sewage climbing.

[0060] Further, the side wall of the total inlet 380 extends upwardly and rearwardly, and the upper surface of the rear drainage branch 332 is set to be higher than the upper surface of the front drainage branch 330. Specifically, the inner upper surface of the front drainage branch 330 adjacent to the total inlet 380 is 5-10 mm lower than the inner upper surface of the rear drainage branch 332 adjacent to the total inlet 380, i.e. the height difference h is 5-10 mm. In this way, the transition of the rear drainage branch 332 to the rearwardly inclined side wall of the total inlet 380 is smooth, and the difficulty of sewage climbing at the connection is reduced.

[0061] In the embodiment, the front cleaning roller 341 is adjacent to the front suction port of the front drainage branch 330, and the rear cleaning roller 342 is adjacent to the rear suction port of the rear drainage branch 332, so that the sewage at the position where the cleaning roller contacts the ground can be quickly sucked and recovered, the sewage recovery efficiency is improved, and the cleaning effect is ensured. In order to ensure the sewage suction efficiency, the other end of the front drainage branch 330 is further set to face the part of the outer surface below the axis of the front cleaning roller 341, and the other end of the rear drainage branch 332 is further set to face the part of the outer surface below the axis of the rear cleaning roller 342. The position is adjacent to the position where the cleaning roller contacts the ground, and the front drainage branch 330 and the rear drainage branch 332 can timely recover the sewage.

[0062] In a specific embodiment, the projection of the front drainage branch 330 on the working surface of the cleaning seat 30 overlaps the projection of the front cleaning roller 341 on the working surface, and correspondingly, the projection of the rear drainage branch 332 on the working surface of the cleaning seat 30 overlaps the projection of the rear cleaning roller 342 on the working surface. Therefore, the distance between the front drainage branch 330 and the front cleaning roller 341 and the distance between the rear drainage branch 332 and the rear cleaning roller 342 are close, and the sewage recovery efficiency is ensured to be high.

[0063] In an embodiment, the rotation directions of the front cleaning roller 341 and the rear cleaning roller 342 are set to be opposite, so that Figure 3 As shown in the state of the scrubber, the front cleaning roller 341 is set to rotate counterclockwise, and the rear cleaning roller 342 is set to rotate clockwise. When the front cleaning roller 341 and the rear cleaning roller 342 are driven to rotate, the linear velocity direction of the position where the front cleaning roller 341 contacts the ground is directed to the side of the front drainage branch 330, and the linear velocity direction of the position where the rear cleaning roller 342 contacts the working surface is directed to the side of the rear drainage branch 332. Therefore, the movement direction of the sewage driven by the rotation of the cleaning roller is directed to the direction of the corresponding suction port, so that the sewage directly moves to the direction of the corresponding suction port under the action of inertia, the sewage recovery efficiency is improved, and the cleaning effect is ensured.

[0064] It can be understood that the clean water container 50 can provide clean water required for mopping the floor, the clean water is sprayed onto the cleaning roller with fluff through the built-in clean water supply pipeline, the cleaning roller rotates at high speed to mop the floor, and then the sewage after the cleaning roller mops the floor enters the pipeline through suction ports arranged in front and back of the cleaning seat 30, negative pressure and airflow are formed in the front drainage branch 330, the rear drainage branch 332 and the dirty water recovery pipe 13 by the power provided by the motor, water in the front drainage branch 330, the rear drainage branch 332 and the dirty water recovery pipe 13 enters the dirty water recovery tank 40, and the process of washing, mopping and suction is completed. However, the dirty water recovery pipe 13 must have a certain length, and during the process that the sewage enters the dirty water recovery tank 40 through the front drainage branch 330, the rear drainage branch 332 and the dirty water recovery pipe 13, sewage must exist in each section of the dirty water recovery pipe. When the user completes a work and turns off the scrubber, the flow rate of the water in the dirty water recovery pipe 13 is slower than the flow rate of the air when the suction assembly 20 stops working, and a small amount of sewage will inevitably remain in the dirty water recovery pipe 13 and not be completely recovered. When the suction assembly 20 stops working, the sewage flows to the ground under the action of gravity, and the outflowing sewage will drip on the ground, causing the ground to be polluted again, which needs to be cleaned by the user using other means, and the use experience is very poor.

[0065] To solve the above problems, an embodiment of the scrubber provided by the present application provides Figure 3 and Figure 4 A backflow prevention groove 382 is arranged below the total inlet 380, the backflow prevention groove 382 forms a water storage recess, and the water storage recess is used to temporarily store the sewage flowing from the total inlet 380 after the suction assembly 20 stops working. Since the total inlet 380 is communicated with the lower end of the dirty water recovery pipe 13, when the suction assembly 20 stops working, the sewage in the pipeline flows to the ground under the action of gravity, flows to the backflow prevention groove 382 below, and is temporarily stored in the water storage recess, so that the sewage will not flow to the ground, and the trouble of secondary cleaning is avoided.

[0066] To ensure that the sewage will not drip outside the range of the backflow prevention groove, the backflow prevention groove 382 is arranged such that its projection on the working surface of the cleaning seat 30 covers the projection of the opening of the total inlet 380 on the working surface. That is to say, the projection of the opening of the total inlet 380 on the working surface of the cleaning seat 30 falls within the range of the projection of the backflow prevention groove 382 on the working surface. Further, the water storage recess is arranged such that its projection on the working surface of the cleaning seat 30 covers the projection of the opening of the total inlet 380 on the working surface, and the projection of the opening of the total inlet 380 on the working surface falls within the range of the projection of the water storage recess on the working surface.

[0067] In an embodiment, please refer to Figure 4The anti-backflow groove 382 is configured to be lower than the lower surface of the adjacent connection of the front and rear water flow branches 330 and 332. In this way, the anti-backflow groove 382 is recessed lower than the lower surface of the adjacent connection of the front and rear water flow branches 330 and 332, and sewage is stored in the water storage recess under the action of gravity. As long as the volume of the water storage recess is properly set, the risk of sewage overflowing onto the lower surface of the front and rear water flow branches and flowing out to the ground to cause pollution can be reduced.

[0068] In an example, referring to Figure 5 The cleaning seat 30 further comprises liquid pumps for pumping water in the water container 50 and delivering the pressurized water to the water spraying plates, and the cleaning water is sprayed out of the water spraying plates and mainly acts on the surface of the corresponding cleaning roller. The scrubber 100 provided in the example has two cleaning rollers, and the amount of water supplied to the two cleaning rollers can be flexibly controlled to improve the cleaning efficiency. Further, the number of liquid pumps is two, including a first liquid pump 31 and a second liquid pump 32. The water inlet ends of the first liquid pump 31 and the second liquid pump 32 are in communication with the water container 50. The water outlet end of the first liquid pump 31 is in communication with the front water spraying plate 361, and the water outlet end of the second liquid pump 32 is in communication with the rear water spraying plate 362. The first liquid pump 31 is used to pump water in the water container and spray the pressurized water to the front cleaning roller 341 through the front water spraying plate 361. The second liquid pump 32 is used to pump water in the water container 50 and spray the pressurized water to the rear cleaning roller 342 through the rear water spraying plate 362.

[0069] The scrubber 100 further comprises a control panel (not shown) for controlling the operating frequency of the first liquid pump 31 and the second liquid pump 32 respectively, so as to adjust the water supply flow rate of the front water spraying plate 361 and the rear water spraying plate 362 respectively, thereby controlling the amount of water supplied to the front cleaning roller 341 and the rear cleaning roller 342. Since the water supplied to the front cleaning roller 341 and the rear cleaning roller 342 is controlled by the first liquid pump 31 and the second liquid pump 32 respectively, the water supply control of the two cleaning rollers is more flexible and convenient and effective, thereby ensuring the wiping effect of the scrubber.

[0070] In an example, referring to Figure 3 The first liquid pump 31 and the second liquid pump 32 are respectively arranged on the left and right sides of the housing 37. Specifically, the first liquid pump 31 is arranged on the right side of the housing 37, and the second liquid pump 32 is arranged on the left side of the housing 37, i.e. one liquid pump is arranged on each of the left and right sides of the housing 37. The arrangement of the two liquid pumps in the cleaning seat 30 is reasonable, which is conducive to the uniformity and miniaturization of the cleaning seat 30. The positions of the first liquid pump 31 and the second liquid pump 32 can also be interchanged, i.e. the first liquid pump 31 can be in communication with the rear water spraying plate 362, and the second liquid pump 32 can be in communication with the front water spraying plate 361, which is not limited herein. Among them, "left" and "right" are in the state of the user operating the scrubber 100. Figure 3The arrow direction shown is the "front" direction, the left side of the body is left, and the right side is right. The "upper", "lower", "front", "rear", "left", "right", and other orientation words described in the embodiments of the present application are all based on the direction shown in the drawings. Figure 1 The state of the scrubber shown is a reference, and the above description is only for illustrative purposes and cannot be understood as limiting the present application.

[0071] The first liquid pump 31 and the second liquid pump 32 are both located between the front cleaning roller 341 and the rear cleaning roller 342. Since there is a gap between the front cleaning roller 341 and the rear cleaning roller 342, there is an existing installation space, and the first liquid pump 31 and the second liquid pump 32 are both arranged in the gap, which has less impact on the volume of the cleaning seat 30, making the cleaning seat 30 more compact and small.

[0072] Specifically, the first liquid pump 31 and the second liquid pump 32 are both arranged in the housing 37 and are symmetrical to each other, the cleaning seat 30 has balanced mass distribution, and is not exposed, and the appearance of the cleaning seat is more beautiful.

[0073] In the specific embodiment, please continue to refer to Figure 5 The cleaning seat includes a three-way valve 35, and the three-way valve 35 includes a first port, a second port, and a third port. The first port is in communication with the clean water container 50 through a first water inlet pipe 391, the second port is in communication with the water inlet end of the first liquid pump 31 through a second water inlet pipe 392, and the third port is in communication with the water inlet end of the second liquid pump 32 through a third water inlet pipe 393. The first liquid pump 31 is in communication with the front water spraying plate 361 through a first water outlet pipe 394, and the second liquid pump 32 is in communication with the rear water spraying plate 362 through a second water outlet pipe 395. The first water inlet pipe 391 can also be directly in communication with the clean water container 50, that is, as part of the clean water supply pipeline, in communication between the three-way valve 35 and the clean water container 50.

[0074] The above is only one specific embodiment of the present application, and any improvement made on the basis of the concept of the present application is considered to be within the protection scope of the present application.

Claims

1. A scrubber machine characterized in that, The cleaning machine comprises: a main body, an operation part at one end of the main body for holding, a cleaning seat part at the other end of the main body, the main body being provided with a dirty water recovery tank and a dirty water recovery pipe communicated between the dirty water recovery tank and the cleaning seat part; the cleaning seat part comprises: a front cleaning roller; a rear cleaning roller, which is arranged in a spaced manner with the front cleaning roller; a total inlet communicated with the lower end of the dirty water recovery pipe, through which the sewage collected by the front cleaning roller and the rear cleaning roller enters the dirty water recovery pipe; a front drainage branch and a rear drainage branch, one end of the front drainage branch being communicated with the total inlet and the other end of the front drainage branch being arranged to face the front cleaning roller, one end of the rear drainage branch being communicated with the total inlet and the other end of the rear drainage branch being arranged to face the rear cleaning roller, the front drainage branch, the total inlet and the rear drainage branch being arranged in sequence, the front drainage branch and the rear drainage branch being arranged between the front cleaning roller and the rear cleaning roller, the front drainage branch and the rear drainage branch being used for guiding the sewage collected by the front cleaning roller and the rear cleaning roller to the total inlet, the height of the inner upper surface of the front drainage branch adjacent to the total inlet being different from the height of the inner upper surface of the rear drainage branch adjacent to the total inlet, the inner upper surface of the front drainage branch and the working surface having an inclination angle α1, the inner upper surface of the rear drainage branch and the working surface having an inclination angle α2, wherein the inclination angle α1 is not equal to the inclination angle α2.

2. The machine of claim 1, wherein, The inner upper surface of the front drainage branch adjacent to the total inlet is lower than the inner upper surface of the rear drainage branch adjacent to the total inlet.

3. The machine of claim 2, wherein, The inner upper surface of the front drainage branch adjacent to the total inlet is 5mm-10mm lower than the inner upper surface of the rear drainage branch adjacent to the total inlet.

4. The walk-behind scrubber of claim 1, wherein, The inner upper surface of the front drainage branch close to the total inlet is higher than the inner upper surface of the front drainage branch away from the total inlet. The inner upper surface of the rear drainage branch close to the total inlet is higher than the inner upper surface of the rear drainage branch away from the total inlet.

5. The walk-behind scrubber of claim 1, wherein, The cleaning machine further comprises a battery pack for providing electric energy for the cleaning machine, the battery pack being arranged on the main body.

6. The walk-behind scrubber of claim 1, wherein, The front drainage branch and the rear drainage branch have the same extension direction.

7. The machine of claim 6, wherein, The front drainage branch and the rear drainage branch both extend along the front-rear direction.

8. The walk-behind scrubber of claim 1, wherein, The front drainage branch and the rear drainage branch have the same length.

9. The walk-behind scrubber of claim 1, wherein, The total inlet is further provided with an anti-backflow groove below the total inlet, the anti-backflow groove having a water storage cavity for storing the sewage flowing down from the total inlet when the suction assembly stops working.

10. The machine of claim 9, wherein, The projection of the total inlet on the working surface falls within the projection range of the water storage cavity on the working surface.

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