CN118078147A

CN118078147A - Mobile cleaning device and wiper assembly module

Info

Publication number: CN118078147A
Application number: CN202211462038.1A
Authority: CN
Inventors: 张青; 班永; 程连鹏
Original assignee: Ecovacs Robotics Suzhou Co Ltd
Current assignee: Ecovacs Robotics Suzhou Co Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2024-05-28

Abstract

The application discloses a mobile cleaning device and a wiper assembly module, wherein the mobile cleaning device at least comprises a machine body, a wiping component and a sewage recovery component, the machine body is provided with a forward direction, the wiping component and the sewage recovery component are positioned at the bottom of the machine body, and the sewage recovery component is positioned at the rear of the wiping component; the waste water recovery assembly having a wiper portion, the wiper assembly being at least partially located within an arcuate region defined by the wiper portion; when the mobile cleaning device advances on a target surface, the wiper portion is in interference contact with the target surface to collect the sewage within the arcuate region and cause the sewage recovery assembly to draw the sewage through a water suction line in the wiper portion. The technical scheme provided by the application can improve the problem of residual water stains on the surface to be cleaned.

Description

Mobile cleaning device and wiper assembly module

Technical Field

The application relates to the technical field of cleaning, in particular to a movable cleaning device and a wiper assembly module.

Background

With the progress of society and the development of technology and manufacturing processes, movable cleaning devices such as sweeping robots, automatic floor washing machines, window cleaning robots, etc. are increasingly used.

At present, the cleaning device generally uses a conventional rag to wipe and clean a surface to be cleaned, but after the cleaning device uses the rag to clean the surface to be cleaned, water stains are often left on a cleaning path of the cleaning device. Because the existing cleaning equipment lacks the function of recycling sewage in real time, the residual water stains easily wet the floor, and watermarks can be generated after the water stains are dried, so that people can feel poor in cleaning effect, and user experience is affected.

Disclosure of Invention

The application aims to provide a mobile cleaning device and a wiper assembly module, which can improve the problem of residual water stains on a surface to be cleaned.

To achieve the above object, in one aspect, the present application provides a mobile cleaning apparatus including at least a main body, a wiping assembly, and a sewage recovery assembly, wherein the main body has a forward direction, the wiping assembly and the sewage recovery assembly are located at a bottom of the main body, and the sewage recovery assembly is located at a rear of the wiping assembly; the waste water recovery assembly having a wiper portion, the wiper assembly being at least partially located within an arcuate region defined by the wiper portion; when the mobile cleaning device advances on a target surface, the wiper portion is in interference contact with the target surface to collect the sewage within the arcuate region and cause the sewage recovery assembly to draw the sewage through a water suction line in the wiper portion.

In order to achieve the above object, another aspect of the present application provides a wiper assembly module, which at least includes a base, a wiper portion, and a negative pressure device, wherein the base has a hollow cavity, and a bottom end of the base has a slot, and a top end of the base has a water suction hole, and the slot and the water suction hole are both communicated with the hollow cavity to form a water suction pipeline; the water scraping part is fixed in the groove and is used for scraping liquid on the target surface; the negative pressure device is communicated with the water suction hole and is used for sucking liquid scraped by the water scraping part through the water suction pipeline.

Therefore, according to the technical scheme provided by the application, the sewage recovery assembly is arranged at the bottom of the mobile cleaning device and is positioned behind the wiping assembly, so that after the wiping assembly wipes and cleans the floor and glass waiting cleaning surface, even if water stains remain on the cleaning surface, the sewage recovery assembly can scrape the water stains. The waste water recovery assembly has a wiper portion that forms an arcuate waste water recovery area with the wiper assembly into which waste water scraped by the waste water recovery assembly can be collected. Meanwhile, the inside of the water scraping part is provided with a water suction pipeline which is communicated with a recovery channel inside the movable cleaning equipment, and the movable cleaning equipment can sequentially suck sewage in the arched area into the sewage tank through the water suction pipeline and the recovery channel by utilizing a vacuum pump and other negative pressure devices. Under the help of the sewage recovery component, the mobile cleaning equipment can recover residual sewage, so that the problem of residual water stains on the surface to be cleaned is solved, and the cleaning effect of the equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a bottom view of a mobile cleaning device in one embodiment provided by the present application;

FIG. 2 is a schematic view of a wiper portion according to one embodiment of the present application;

FIG. 3 is a bottom view of the wiper portion shown in FIG. 2;

fig. 4 is an enlarged view of the structure of the area a of the wiper portion shown in fig. 3;

Fig. 5 is a sectional view of the wiper portion of fig. 2 at an axis of symmetry L;

FIG. 6 is a bottom view of a mobile cleaning device in accordance with another embodiment of the present application;

FIG. 7 is a schematic view of a structure of a turntable with different configurations according to an embodiment of the present application;

fig. 8 is a bottom view of a mobile cleaning device in accordance with another embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings. Terms such as "upper," "lower," "first end," "second end," "one end," "the other end," and the like used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted," "disposed," "provided," "connected," "slidingly connected," "secured," and "sleeved" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

With the progress of society and the development of technology and manufacturing processes, movable cleaning devices such as sweeping robots, automatic floor washing machines, window cleaning robots, etc. are increasingly used. When the cleaning device wipes and cleans a surface to be cleaned, a conventional washable rag is generally used for wiping and cleaning, for example, a rag disc is driven to quickly scrape the ground by high-speed rotation of a strong-traction motor.

In practice, cleaning devices often leave water stains on their cleaning path after wiping the surface to be cleaned with a wipe. Because the existing cleaning equipment lacks the function of recycling sewage in real time, the residual water stains easily wet the floor, and watermarks can be generated after the water stains are dried, so that people can feel poor in cleaning effect, and the user experience is affected. Meanwhile, after the traditional rag is used for wiping dirt, the dirt can be attached to the fiber of the rag, and along with the movement of the cleaning equipment, the dirt on the rag can pollute other areas, so that secondary pollution is caused. The cleaning effect of the traditional rag is not ideal enough for the stubborn stains such as oil stains, dyes, glue and the like, and the rag is difficult to clean, so that bacteria are easy to breed for a long time, the rag is smelly, and peculiar smell is generated.

Therefore, how to improve the structure of the cleaning device to solve the problem of residual water stain on the surface to be cleaned is a problem in the art.

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the described embodiments of the application are only some, but not all, embodiments of the application. All other embodiments, based on the embodiments of the application, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the application.

Referring to fig. 1 to 8 together, in one possible embodiment, the mobile cleaning device comprises at least a body 1, a wiping assembly 2 and a waste water recovery assembly 3. It should be noted that the present application defines the forward direction of the body 1 as the direction indicated by the arrow in fig. 1, and when the forward direction is defined, the positional relationship of "front", "rear", "left", "right", i.e. "front" refers to the forward direction and "rear" refers to the opposite direction of the forward direction can be determined with reference to the forward direction.

The bottom of the body 1 is provided with a driving device 4, and the mobile cleaning device can autonomously move on a target surface (such as a floor, a tile, glass, etc.) under the action of the driving device 4. Of course, the mobile cleaning device may also be moved passively under the pushing of the user.

In this embodiment, both the wiper member 2 and the waste water recovery member 3 are located at the bottom of the main body 1, and the waste water recovery member 3 is located at the rear of the wiper member 2. The wiping element 2 is connected to a power assembly (not shown) inside the body 1, under the action of which the wiping element 2 can wipe the area to be cleaned on the target surface. It should be noted that the wiping component 2 can wipe the area to be cleaned in a linear reciprocating motion mode, and can wipe the area to be cleaned in a rotary scraping motion mode, and the cleaning motion mode of the wiping component 2 is not limited in the application.

In practical applications, to improve the cleaning effect of the area to be cleaned, a cleaning liquid or a liquid such as clear water is typically sprayed on the wiping component 2, and possibly a liquid is sprayed on the surface of the area to be cleaned, and in some cases, the liquid (such as sewage, juice, soy sauce, etc.) may remain on the surface of the area to be cleaned. However, due to factors such as the material and structure of the wiping element 2, there is often residual water on the cleaning path of the wiping element 2, which can greatly affect the cleaning effect of the mobile cleaning device.

To solve this problem, a wiper portion 31 may be provided in the sewage recovery unit 3, and a projection of the wiper portion 31 on the target surface approximates an arc of a circle whose opening direction is directed in the advancing direction of the main body 1. The end points on both sides connecting the wiper portion 31 may constitute a line segment, which may enclose an arcuate region (i.e., a hatched region in fig. 1) with the body of the wiper portion 31 at the bottom of the body 1. At the same time, the wiper member 2 is arranged in front of the wiper portion 31 and the wiper member 2 is at least partially located in the above-mentioned arcuate region, i.e. a part of the structure of the wiper member 2 is enclosed by the wiper portion 31.

In the present embodiment, when the moving cleaning apparatus advances on the target surface, the bottom of the wiper portion 31 is in interference contact with the target surface. As the moving cleaning device moves forward, the wiper member 2 contacts the target surface and wipes the target surface, while the bottom of the wiper portion 31 continuously wipes the target surface. Since the wiper portion 31 is located at the rear of the wiper member 2, water stains remaining on the cleaning path of the wiper member 2 can be scraped off by the wiper portion 31 and collected in the above-described arcuate region, which may exist as a sewage recovery region.

Further, the water suction pipe 311 is provided in the wiper portion 31, and an opening on one side of the water suction pipe 311 may be provided at the bottom of the wiper portion 31, so that the water suction pipe 311 may communicate with the arcuate region, and the sewage recovery unit 3 may suck sewage in the arcuate region through the water suction pipe 311. Specifically, the sewage recovery assembly 3 further includes a recovery channel (not shown), a negative pressure device (not shown), a sewage tank (not shown) and other components disposed inside the mobile cleaning device, and the opening on the other side of the water suction pipeline 311 may be communicated with the recovery channel, and the recovery channel is communicated with the negative pressure device such as a vacuum pump. Thus, by using a negative pressure device such as a vacuum pump, the sewage in the arch-shaped area can be sucked into the sewage tank through the water suction pipeline 311 and the recovery channel in sequence by moving the cleaning device.

It is to be noted that, based on different application scenarios, the bottom of the wiper portion 31 is in interference contact with the target surface while the wiping component 2 may not be in contact with the target surface as the mobile cleaning device is advanced over the target surface. For example, when there is already a large amount of liquid on the target surface, wiping the target surface with the wiping assembly 2 may instead splash liquid into the surrounding environment, which is detrimental to cleaning the target surface, so that the mobile cleaning device may lift the wiping assembly 2 off the target surface with a lifting assembly (not shown). At this time, as the moving cleaning apparatus moves forward, the wiper member 2 does not come into contact with the liquid on the target surface regardless of whether or not it is operating, and the wiper portion 31 can still wipe off and collect the liquid remaining on the moving path of the moving cleaning apparatus in the above-mentioned arcuate region, so that the sewage recovery member 3 recovers the sewage in the arcuate region through the water suction line 311. After the vast majority of the residual liquid is recovered, the mobile cleaning device may again clean the target surface from the opposite direction according to the original travel path, e.g. the mobile cleaning device may simultaneously clean the target surface again with the wiping assembly 2 and the waste water recovery assembly 3.

In one possible embodiment, the wiper portion 31 includes a base 312, wherein the base 312 is generally flat and is curved into an arc-shaped structure having an intrados toward the advancing direction of the body 1, i.e., a side of the arc-shaped structure that is concave inward toward the advancing direction of the body 1. For ease of understanding, the up-down orientation of the base 312 is defined with reference to the view angle shown in FIG. 2. Accordingly, when the upper portion of the base 312 is defined, the bottom and top ends of the base 312 are defined. It should be noted that when the base 312 is mounted on the bottom of the body 1 and the body 1 is placed on the target surface, the bottom end of the base 312 will be oriented toward the target surface.

The bottom end of the base 312 is provided with a slot 3122, and the top end of the base 312 is provided with a water suction hole 3123. Meanwhile, the inside of the base 312 is provided with a hollow cavity 3121, and the slot 3122 and the water suction hole 3123 communicate with the hollow cavity 3121 at the same time. Further, the bottom of the body 1 is provided with an arc-shaped catching groove (not shown) having the same bending angle as the base 312, so that the base 312 can be fixed inside the arc-shaped catching groove. The inside of the arc-shaped clamping groove is provided with a butt joint structure which is used for butt joint with the water absorption hole 3123 and is communicated with a recovery channel inside the mobile cleaning equipment. When the base 312 is installed inside the arc-shaped clamping groove, the water suction hole 3123 can be docked with the recycling channel inside the mobile cleaning device through the docking structure, so that the mobile cleaning device can suck the sewage in the arc-shaped area through the recycling channel, the water suction hole 3123, the hollow cavity 3121 and the slot 3122. At this time, the slot 3122, the hollow cavity 3121 and the water suction hole 3123 together form the water suction pipe 311, wherein the slot 3122 corresponds to the water inlet end of the water suction pipe 311, and the water suction hole 3123 corresponds to the water outlet end of the water suction pipe 311.

Since the wiper portion 31 will constantly rub against the target surface as the moving cleaning apparatus moves over the target surface, this means that the target surface will apply a resistance to the moving cleaning apparatus through the base 312, which resistance is opposite to the direction of travel of the moving cleaning apparatus. If the resistance is not in line with the direction of travel, the moving cleaning device may shift its direction of travel when moving under the effect of the resistance.

To solve this problem, in one possible embodiment, the base 312 may be constructed in a symmetrical structure, and the symmetry axis L of the base 312 is substantially coincident with the traction direction of the mobile cleaning device when the base 312 is mounted inside the arc-shaped slot. In practical applications, since the outer contour of the body 1 is mostly symmetrical, the symmetry axis L of the base 312 may be set to be substantially coincident with the symmetry axis of the body 1 when the base 312 is mounted inside the arc-shaped slot for simplicity of design. A protrusion 3124 may be provided at a midpoint of the top end of the base 312, where the axis of symmetry L of the base 312 passes through the midpoint of the top end thereof. The protrusions 3124 may be connected with a docking structure inside the arc-shaped clamping groove, and the water suction holes 3123 are opened on the protrusions 3124. Thus, when the protrusions 3124 are connected with the docking structure inside the arc-shaped clamping groove, the water suction holes 3123 can be communicated with the recycling channel inside the mobile cleaning device.

Further, the contour line of the top end of the base 312 is configured to: gradually decreasing from the protrusions 3124 toward the ends of the base 312 to form a smooth decreasing curve. The above structure can not only ensure that the moving cleaning device is not easy to deviate in the advancing direction when moving, but also improve the stability of the installation of the base 312. Meanwhile, the above structure can also improve the water absorption efficiency of the water absorption line 311, which will be described in detail later.

In one possible embodiment, the base 312 may be mounted to the bottom of the fuselage 1 as close as possible to the bottom rear edge of the fuselage 1, and the bottom end of the base 312 has a first circular arc segment 3125, a second circular arc segment 3216, and a straight segment 3127. The opening direction of the first arc segment 3125 and the opening direction of the second arc segment 3216 are both towards the advancing direction of the fuselage 1, the first arc segment 3125 and the second arc segment 3216 are symmetrically distributed on two sides of the flat segment 3127, and two ends of the flat segment 3127 are respectively and smoothly connected with the first arc segment 3125 and the second arc segment 3216. In the present embodiment, the first circular arc segment 3125, the second circular arc segment 3216, and the flat segment 3127 collectively form an arc-shaped structure of the base 312. The first and second circular arc segments 3125 and 3216 extend toward the outer edge of the body 1, respectively, to increase the area of the arcuate region and to improve the water catching effect of the wiper portion 31.

It should be noted that the base 312 may be made by injection molding using ABS (Acry l on itr i l e Butad I ENE STYRENE ), PS (Po lystyrene, polystyrene) or the like. In some cases, the base 312 may be decomposed into different structural members, and then the structural members may be made of plastic, metal, etc. respectively, and then they may be combined together by riveting, bolting, etc. to form the base 312. The present application is not limited to the manner in which the base 312 is fabricated.

In practice, since the sewage recovery module 3 sucks sewage in the arcuate region through the water suction pipe 311, the slot 3122 corresponds to the water inlet end of the water suction pipe 311. Thus, to maximize the water absorption efficiency of the water absorption line 311, in one possible embodiment, as shown in fig. 2-5, the slots 3122 are configured to: the slot 3122 extends along the length of the base 312, and the slot 3122 extends through the first circular arc segment 3125, the straight segment 3127, and the second circular arc segment 3216. In other words, the length of the slot 3122 is equal to the length of the bottom end of the base 312. This configuration can maximize the coverage of the water inlet end of the water suction pipe 311, and the slot 3122 can sweep through the entire arcuate region during the travel of the mobile cleaning device, so that the collected wastewater in the arcuate region can be sucked by the wastewater recovery assembly 3.

In order to further improve the wiping effect of the wiping portion 31, it is conceivable to add a wiper strip (e.g., a rubber wiper strip, a plastic wiper plate, etc.) in the groove 3122 to wipe off the liquid remaining on the target surface with the wiper strip. For this purpose, the slot 3122 needs to have a predetermined width to accommodate the wiper strip described above, and the predetermined width of the slot 3122 may be set between 1mm and 10mm according to an empirical value. Further, in order to avoid interference between the wiper member 2 and the wiper portion 31, the wiper portion 31 may be spaced apart from the wiper member 2 by a predetermined distance. Specifically, as shown in fig. 5, a first distance d1 exists between the flat segment 3127 and the wiping component 2, and the value of the first distance d1 is greater than or equal to 1mm according to an empirical value.

In one possible embodiment, the projection of the suction hole 3123 on the bottom end of the base 312 is located on the flat section 3127, i.e. the suction hole 3123 is located on the flat section 3127. Since the base 312 has a symmetrical structure and the symmetry axis L of the base 312 passes through the water suction hole 3123, the water suction hole 3123 is located at a midpoint of the straight section 3127 such that a distance between an end of the first circular arc section 3125 near the side edge of the body 1 (i.e., point a in fig. 2) and the water suction hole 3123 and a distance between an end of the second circular arc section 3216 near the side edge of the body 1 (i.e., point b in fig. 2) and the water suction hole 3123 are equal in size. When the distance from the water suction hole 3123 to the point a is equal to the distance from the water suction hole 3123 to the point b, the suction force generated at the point a by the negative pressure device is substantially equal to the suction force generated at the point b, which makes it possible for the negative pressure device to generate substantially the same suction force throughout the entire length of the slot 3122. Accordingly, when the slots 3122 sweep through the arcuate region, the collected sewage in the arcuate region can be uniformly sucked into the slots 3122, thereby improving the recovery effect of the sewage recovery assembly 3.

Further, when the power of the negative pressure device is fixed, the volume of the gas passing through the cross section of the slot 3122 in unit time is fixed, if the cross section of the slot 3122 is smaller, the speed of the gas passing through the slot 3122 will be faster, which means that the suction force at the slot 3122 will be greater, and the sewage recovery assembly 3 will have a better recovery effect. Accordingly, the internal structure of the water suction line 311 may be configured to: the cross-sectional area of the hollow cavity 3121 gradually increases from the slot 3122 to the water suction hole 3123, and the longitudinal section of the hollow cavity 3121 at the water suction hole 3123 is funnel-shaped. That is, the horizontal cross-sectional area of the water suction pipe 311 becomes gradually smaller from the top end of the base 312 to the bottom end of the base 312, and the horizontal cross-sectional area of the water suction pipe 311 at the slot 3122 is smallest.

Since the contour line of the top end of the base 312 is configured as: the protrusion 3124 gradually decreases toward the two ends of the base 312, so that the water suction pipe 311 has a gradually-changed long and narrow cavity structure, which can increase the suction force at the water inlet end of the water suction pipe 311 as much as possible, thereby increasing the water suction efficiency of the water suction pipe 311. It should be noted that the inner surface of the hollow cavity 3121 may be formed of a smooth curved surface to minimize resistance inside the water suction pipe 311.

Regarding the problem of how to provide the wiper strip in the groove 3122, the present application is described taking the wiper strip as a rubber wiper strip as an example. For convenience of description, the two sidewalls inside the slot 3122 are defined as a front sidewall 31221 and a rear sidewall 31222, respectively, with reference to the advancing direction of the body 1.

In one possible embodiment, the wiper portion 31 further includes a first wiper strip 313, wherein an upper end of the first wiper strip 313 is fixed to the rear sidewall 31222 of the slot 3122, and the first wiper strip 313 is closely adhered to the rear sidewall 31222. As such, the first wiper 313 will be constrained in an arc-shaped structure by the slot 3122, and the arc-shaped structure of the first wiper 313 has the same bending angle as the arc-shaped structure of the base 312, i.e., the intrados of the first wiper 313 faces the advancing direction of the body 1.

Further, the length of the first scraping strip 313 is slightly greater than the length of the slot 3122, so that when the first scraping strip 313 is fixed on the rear sidewall 31222, the first scraping strip 313 can be slightly exposed from both sides of the slot 3122, which makes the scraping range of the first scraping strip 313 slightly greater than the water absorbing range of the slot 3122, and the first scraping strip 313 can better collect the liquid within the water absorbing range of the slot 3122, thereby improving the water absorbing effect of the sewage recovery assembly 3. The height of the first wiper strip 313 should be greater than the depth of the slot 3122 such that the first wiper strip 313 is at least partially exposed to the slot 3122. In practical applications, the length of the exposed portion of the first wiper 313 (i.e., the length of the structure of the first wiper 313 outside the slot 3122) may be set with reference to the distance between the body 1 and the target surface. Specifically, the length of the exposed portion of the first wiper strip 313 satisfies the following condition: as the mobile cleaning device advances over the target surface, the length of the exposed portion of the first wiper strip 313 is slightly greater than the spacing between the body 1 and the target surface such that the bottom end of the first wiper strip 313 is in interference contact with the target surface.

It should be noted that, since the intrados of the first scraping bar 313 faces the advancing direction of the main body 1, the liquid scraped off by the first scraping bar 313 will collect in front of the first scraping bar 313. Meanwhile, since the first wiper 313 is located on the rear sidewall 31222 of the slot 3122, the projection of the slot 3122 on the target surface is located right in front of the first wiper 313. Therefore, after the first scraping strip 313 is added in the groove 3122, the groove 3122 can still absorb the liquid in the arc area normally, and the first scraping strip 313 does not have a negative effect on the water absorbing effect of the groove 3122.

In practice, although the first wiper 313 may collect liquid in the arcuate region, the height of the liquid in the arcuate region may be lower than the height of the grooves 3122, i.e., the liquid in the arcuate region has a spacing between the liquid surface and the grooves 3122. The above-mentioned interval is equivalent to enlarging the cross-sectional area of the slot 3122, and increasing the cross-sectional area of the slot 3122 reduces the suction force at the slot 3122, thereby affecting the recycling effect of the sewage recycling assembly 3.

To solve the above-mentioned problem, in one possible embodiment, the wiper portion 31 further includes a second wiper strip 314, wherein an upper end of the second wiper strip 314 is fixed to the front sidewall 31221 of the slot 3122, and the second wiper strip 314 is closely adhered to the front sidewall 31221. As such, the second wiper 314 will be constrained in an arc-shaped configuration by the slot 3122, and the arc-shaped configuration of the second wiper 314 has the same bending angle as the arc-shaped configuration of the base 312, i.e., the intrados of the second wiper 314 faces the advancing direction of the body 1. Meanwhile, the second wiper strip 314 is located in front of the first wiper strip 313.

It should be noted that, in order to avoid the first and second scraping strips 313 and 314 from blocking the slot 3122, when the first and second scraping strips 313 and 314 are simultaneously fixed in the slot 3122, a second space needs to exist between the first and second scraping strips 313 and 314, and the first and second scraping strips 313 and 314 are in a parallel state. The second spacing may be set between 1mm and 2mm according to empirical values.

Further, the length of the second scraping strip 314 is slightly smaller than the length of the slot 3122, so that when the second scraping strip 314 is fixed on the front side wall 31221, the scraping range of the second scraping strip 314 will be smaller than the scraping range of the first scraping strip 313. In this way, even if there is a missing wiping area on both sides of the second wiping bar 314, the first wiping bar 313 can perform secondary wiping on the missing wiping area, thereby improving the wiping effect of the wiping portion 31. The height of the second wiper strip 314 should be greater than the depth of the slot 3122 such that the second wiper strip 314 is at least partially exposed at the slot 3122. It should be particularly noted that the length of the exposed portion of the second wiper strip 314 should be slightly greater than the spacing between the body 1 and the target surface as the mobile cleaning device advances over the target surface, so that the bottom end of the second wiper strip 314 is in interference contact with the target surface. Meanwhile, in order to avoid interference of the second scraping strip 314 with the first scraping strip 313, the length of the exposed portion of the second scraping strip 314 is smaller than that of the first scraping strip 313.

The first and second scraping strips 313 and 314 are exposed from the slot 3122, and the first and second scraping strips 313 and 314 are simultaneously in interference contact with the target surface, so that the first and second scraping strips 313 and 314 may rub against the target surface when the moving cleaning device is advanced over the target surface. Under the action of the friction force, the first and second wiper strips 313 and 314 are bent backward (i.e., in a direction opposite to the advancing direction of the moving cleaning device).

Because of the second spacing between the first and second wiper strips 313, 314, an elongated cavity may be formed between the folded first and second wiper strips 313, 314. Obviously, the cavity formed by the first wiper 313 and the second wiper 314 must be in direct contact with the liquid in the arcuate region and the cross-sectional area of the cavity is smaller than the cross-sectional area of the slot 3122. Since the cavity formed by the first scraping strip 313 and the second scraping strip 314 can be regarded as the extension of the slot 3122, the first scraping strip 313 and the second scraping strip 314 can scrape the liquid on the target surface for the second time, and can further improve the suction force of the slot 3122.

In practice, the second wiper 314 bends in a direction approaching the first wiper 313 when the mobile cleaning device is advanced over the target surface. In some extreme cases, the second wiper 314 may fully conform to the first wiper 313, which will result in the slots 3122 being fully blocked by the first wiper 313 and the second wiper 314, i.e., the suction line 311 being fully blocked. At this time, the sewage recovery assembly 3 will not be able to suck the liquid in the arcuate region through the water suction line 311.

To solve the above problem, in one possible embodiment, the second scraping strip 314 has a plurality of tooth-shaped openings 3141 and a plurality of supporting ribs 3142, wherein the plurality of tooth-shaped openings 3141 are uniformly distributed at the bottom end of the second scraping strip 314, and the liquid in the arcuate region can flow into the cavity formed by the first scraping strip 313 and the second scraping strip 314 through the tooth-shaped openings 3141, and is further sucked into the slots 3122.

Further, a supporting rib 3142 is provided between two tooth-shaped openings 3141 adjacent to each other, the bottom of the supporting rib 3142 is flush with the bottom end of the second scraping strip 314, and when the first scraping strip 313 and the second scraping strip 314 are simultaneously fixed in the slot 3122, the end of the supporting rib 3142 abuts against the first scraping strip 313. When the mobile cleaning device advances on the target surface, the support rib 3142 can ensure that the distance between the first scraping strip 313 and the second scraping strip 314 is not zero, and the first scraping strip 313 and the second scraping strip 314 cannot be completely attached together, so that a certain fluid channel is always present between the first scraping strip 313 and the second scraping strip 314, so that liquid is sucked into the slots 3122.

It should be noted that the supporting rib 3142 may also be provided on the first wiper strip 313, for example, the supporting rib 3142 may be provided directly on the first wiper strip 313 by an integral molding technique.

Since the first and second wiper strips 313 and 314 are disposed in parallel, when the first and second wiper strips 313 and 314 constitute a cavity, both sides of the cavity are open. When the sewage recovery unit 3 sucks the liquid in the arcuate region through the water suction pipe 311, air may flow into the water suction pipe 311 from both sides of the cavity, which may reduce the recovery effect of the sewage recovery unit 3.

In view of the above, in one possible embodiment, a flange may be disposed at the top ends of two sides of the slot 3122, and the two flanges are labeled as a flange 315 and a flange 316 for convenience of description. Specifically, as shown in fig. 3 and 5, the flange 315 and the flange 316 are at least partially exposed in the slot 3122, and the flange 315 and the flange 316 are vertically abutted against the first scraping strip 313 and the second scraping strip 314 at the same time. The flange 315 and the flange 316 can seal two sides of the cavity formed by the first scraping strip 313 and the second scraping strip 314, so as to prevent air from flowing into the water suction pipeline 311 from two sides of the cavity, thereby improving the recovery effect of the sewage recovery assembly 3.

Alternatively, the second wiper strip 314 may bend rearward as the mobile cleaning device advances over the target surface. To avoid the ribs 315 and 316 interfering with the deformation process of the second wiper strip 314, the exposed portions of the ribs 315 and 316 may have a length less than the exposed portions of the second wiper strip 314. Thus, when the second wiper strip 314 is bent backward, the rib 315 and the rib 316 may leave a deformation space for the second wiper strip 314.

In order to further improve the tightness of the cavity formed by the first scraping strip 313 and the second scraping strip 314, in one possible embodiment, as shown in fig. 8, an angle formed by a tangent α at the midpoint of the arc of the first arc segment 3125 and an extension β of the straight segment 3127 is +.1, an angle of +.1 is less than or equal to 45 degrees, and an angle formed by a tangent γ at the midpoint of the arc of the second arc segment 3216 and an extension β of the straight segment 3127 is +.2, an angle of +.2 is less than or equal to 45 degrees. Preferably, angle 1= angle 2. Laboratory verification that if 1 and 2 satisfy the above conditions, then when the mobile cleaning apparatus advances on the target surface, the flange 315 and the flange 316 can bend in a direction approaching the second wiper 314 without being folded outwards under friction of the target surface, which helps to improve the tightness of the cavity formed by the first wiper 313 and the second wiper 314.

In one possible embodiment for the wiping assembly 2, as shown in fig. 1, the wiping assembly 2 comprises at least one dishcloth 21, wherein the dishcloth 21 is rotatably arranged at the bottom of the body 1. The wiper disc 21 is connected with a power device, and the wiper disc 21 can rotate to wipe the target surface under the action of the power device. The specific structure of the dishcloth tray 21 may be referred to in the prior art, and the present application will not be described herein.

In practical use, depending on factors such as the internal structure of the mobile cleaning apparatus, the diameter of the wiper disc 21, and the bending angle of the wiper portion 31, the position of any one of the wiper discs 21 at the bottom of the body 1 is configured to: a straight line passing through the center of the cloth tray 21 and parallel to the straight section 3127 does not intersect the first circular arc section 3125. The above structure can ensure that the liquid thrown out by the wiper portion 31 can be caught by the wiper disc 21 when rotating. It should be noted that if the volume of the body 1 is sufficiently large, the bending angle of the wiper portion 31 may be appropriately increased, and the position of the wiper blade 21 at the bottom of the body 1 may not be limited as described above, as long as the wiper blade 21 is located in front of the wiper portion 31.

Alternatively, the wiping assembly 2 comprises two wiper discs 21, the two wiper discs 21 may be arranged in parallel at the bottom of the body 1, and a straight line connecting the centers of the two wiper discs 21 is parallel to the flat section 3127.

In another possible embodiment, as shown in fig. 6, the wiping assembly 2 comprises at least one turntable 22, wherein the turntable 22 is connected to a power unit inside the body 1, and the turntable 22 can rotate at a high speed under the drive of the power unit. Meanwhile, a soft scraping strip 221 is embedded on one side of the turntable 22 facing the target surface, and the soft scraping strip 221 meets the following conditions: the soft wiper strip 221 is in interference contact with the target surface as the mobile cleaning device is advanced over the target surface. Thus, the turntable 22 rotating at a high speed can drive the soft scraping strip 221 to rub at a high frequency on the target surface, so as to erase stains on the target surface.

Alternatively, when the wiping assembly 2 includes a plurality of turntables 22, the turntables 22 may be arranged in parallel or staggered at the bottom of the body 1. To avoid interference when the turntables 22 rotate, a predetermined distance exists between two adjacent turntables 22. According to the empirical value, the preset distance is in a range of 1mm to 5 mm.

It should be noted that the interference between the soft wiper 221 and the target surface may be slightly smaller than the interference between the second wiper 314 and the target surface. When the wiping assembly 2 includes a plurality of turntables 22, each turntable 22 may be provided with a corresponding set of power means (e.g., a miniature dc motor) to drive the individual turntables 22 to rotate independently. In some cases, only one power device may be provided, and then the rotary discs 22 may be driven to rotate together by a belt, a gear or the like.

In one possible embodiment, as shown in fig. 7, the soft scraping strips 221 are distributed in a straight or Y-shape on the turntable 22, and the position of any one turntable 22 at the bottom of the body 1 is configured as follows: a straight line passing through the center of the turntable 22 and parallel to the straight section 3127 does not intersect the first circular arc section 3125. The above structure can ensure that the liquid thrown out by the soft wiper strip 221 during rotation can be caught by the wiper portion 31.

Alternatively, as shown in fig. 8, the wiping assembly 2 further comprises at least one dishcloth disc 21, i.e. in this embodiment the wiping assembly 2 comprises at least one dishcloth disc 21 and at least one turntable 22, and the dishcloth disc 21 is located behind the turntable 22. In this case, the turntable 22 may wipe the stubborn dirt on the target surface first, and then the dust wiped by the turntable 22 is wiped secondarily by the wiper disc 21. Further, the cloth tray 21 and the turntable 22 can be floatingly coupled to the main body 1, so that the cloth tray 21 and the soft wiper strip 221 can be sufficiently contacted with the target surface regardless of the change in flatness of the target surface when the moving cleaning apparatus is advanced on the target surface, thereby achieving a better wiping effect.

To further enhance the cleaning effect of the mobile cleaning device, in one possible embodiment, the mobile cleaning device further comprises a water jet 5, the water jet 5 being located in front of the wiping element 2, and the water jet 5 being in communication with the clean water tank inside the body 1. As the mobile cleaning device advances over the target surface, the sprinkler head 5 can spray liquid from the tank toward the forward direction of the body 1 to soften stains on the target surface, thereby facilitating wiping of the target surface by the wiping assembly 2.

As shown in fig. 2 to 5, the present application also provides a wiper assembly module including at least a base 312, a wiper portion 31, and a negative pressure device (not shown), based on the same inventive concept. Specifically, the base 312 has a hollow cavity 3121, and the bottom end of the base 312 has a slot 3122, the top end of the base 312 has a water suction hole 3123, and the slot 3122 and the water suction hole 3123 communicate with the hollow cavity 3121 at the same time. The slot 3122, the hollow cavity 3121 and the water suction hole 3123 together form the water suction pipe 311, wherein the slot 3122 corresponds to the water inlet end of the water suction pipe 311, and the water suction hole 3123 corresponds to the water outlet end of the water suction pipe 311. The wiper portion 31 is fixed in the groove 3122, and the wiper portion 31 is for wiping off the liquid on the target surface. The negative pressure device communicates with the water suction hole 3123 so that the negative pressure device can suck the liquid scraped by the wiper portion 31 through the water suction pipe 311.

In one possible embodiment, the wiper portion 31 includes a first wiper strip, wherein an upper end of the first wiper strip 313 is fixed to the rear sidewall 31222 of the slot 3122, and the first wiper strip 313 is closely fitted to the rear sidewall 31222. The length of the first scraping strip 313 is slightly greater than the length of the slot 3122, so that when the first scraping strip 313 is fixed on the rear sidewall 31222, the first scraping strip 313 may be slightly exposed from both sides of the slot 3122, which makes the scraping range of the first scraping strip 313 slightly greater than the water absorption range of the slot 3122, and the first scraping strip 313 may better collect the liquid within the water absorption range of the slot 3122.

The height of the first wiper strip 313 should be greater than the depth of the slot 3122 such that the first wiper strip 313 is at least partially exposed to the slot 3122. In practical applications, the length of the exposed portion of the first wiper 313 (i.e., the length of the structure of the first wiper 313 outside the slot 3122) may be set with reference to the distance between the body 1 and the target surface. Specifically, the length of the exposed portion of the first wiper strip 313 satisfies the following condition: as the mobile cleaning device advances over the target surface, the length of the exposed portion of the first wiper strip 313 is slightly greater than the spacing between the body 1 and the target surface such that the bottom end of the first wiper strip 313 is in interference contact with the target surface.

In one possible embodiment, the wiper portion 31 further includes a second wiper strip 314, wherein an upper end of the second wiper strip 314 is fixed to the front sidewall 31221 of the slot 3122, and the second wiper strip 314 is closely adhered to the front sidewall 31221. In order to avoid the first and second scraping strips 313 and 314 from blocking the slot 3122, when the first and second scraping strips 313 and 314 are simultaneously fixed in the slot 3122, a second space needs to exist between the first and second scraping strips 313 and 314, and the first and second scraping strips 313 and 314 are in a parallel state. The second spacing may be set between 1mm and 2mm according to empirical values.

In one implementation manner, the second scraping strip 314 has a plurality of toothed openings 3141 and a plurality of supporting ribs 3142, wherein the plurality of toothed openings 3141 are uniformly distributed at the bottom end of the second scraping strip 314, one supporting rib 3142 is disposed between two adjacent toothed openings 3141, the bottom of the supporting rib 3142 is flush with the bottom end of the second scraping strip 314, and when the first scraping strip 313 and the second scraping strip 314 are simultaneously fixed in the slot 3122, the end of the supporting rib 3142 abuts against the first scraping strip 313. When the mobile cleaning device advances on the target surface, the support rib 3142 can ensure that the distance between the first scraping strip 313 and the second scraping strip 314 is not zero, and the first scraping strip 313 and the second scraping strip 314 cannot be completely attached together, so that a certain fluid channel is always present between the first scraping strip 313 and the second scraping strip 314, so that liquid is sucked into the slots 3122.

In one embodiment, a flange may be disposed at the top ends of both sides of the slot 3122, and the two flanges are labeled as flange 315 and flange 316 for convenience of description. Specifically, as shown in fig. 3 and 5, the flange 315 and the flange 316 are at least partially exposed in the slot 3122, and the flange 315 and the flange 316 are vertically abutted against the first scraping strip 313 and the second scraping strip 314 at the same time. The ribs 315 and 316 can seal two sides of the cavity formed by the first scraping strip 313 and the second scraping strip 314, so as to prevent air from flowing into the water suction pipeline 311 from two sides of the cavity.

The following describes the working principle of the mobile cleaning device in detail by taking the mobile cleaning device as an example of a sweeping robot in combination with a specific application scenario.

Application scenario one

In mid-autumn, autumn is preparing a table of full dinner for people in the kitchen. With the continuous washing of dishes and the washing of dinner plates in autumn, a lot of water drops are scattered on the ground of a kitchen, and with the continuous walking of autumn in the kitchen, the water drops are quickly distributed on the ground of the kitchen. These water droplets mix with the dust and sludge originally on the ground to form stubborn stains which are difficult to clean.

When the autumn scents put the prepared meal on the dining table, the autumn scents suddenly find that the floor of the kitchen is wet and is full of various stains which are difficult to clean, and the soil is simply difficult to drop. The autumn mobile robot is taken out and put in the kitchen after the newly purchased sweeping robot is put in the kitchen. Then the sweeping robot is started, the mobile phone is opened, the APP matched with the sweeping robot is clicked, and a deep cleaning mode is selected. After the robot starts working, the robot leaves the kitchen and is cheerful with families.

If they are divided into two parts, one branch is shown. When the autumn and the family eat, the floor sweeping robot can silently clean the floor in the kitchen. The sweeping robot is based on a deep cleaning instruction, firstly, a laser radar at the top of the machine body 1 is opened, and the laser radar is utilized to detect the surrounding environment. The laser radar can generate dot matrix cloud according to surrounding environment, the sweeping robot can construct a model of a kitchen according to the dot matrix cloud, and then the sweeping robot calculates an optimal cleaning path by using a path planning algorithm. Meanwhile, the floor sweeping robot can judge the cleaning state of the floor according to the point cloud image. For example, the laser beam strikes the water surface, most of the laser beam is absorbed by the water, and a small part of the laser beam is reflected by the mirror surface, so that the laser radar cannot receive the echo, i.e. the water surface cannot generate lattice cloud.

By utilizing the principle, the floor sweeping robot judges that the floor to be cleaned is full of liquid, so that the floor sweeping robot divides a deep cleaning instruction into two steps to be executed, and the first step is that: and (3) sewage recovery, namely, the second step: wiping the ground.

When the step of recovering sewage is performed, the sweeping robot firstly lifts the wiping component 2 off the ground by using the lifting component so as to avoid liquid on the ground from polluting the wiping component 2, and then starts the sewage recovery component 3 and cleans the ground according to the optimal cleaning path. During the travel of the robot, the wiper portion 31 may scrape off and collect the liquid on the inlet path in the arcuate region, and then the sewage in the arcuate region is recovered by the sewage recovery assembly 3 through the water suction pipe 311.

It should be noted that the robot may detect the cleaning state of the floor again using the lidar after the robot has travelled the entire distance according to the optimal cleaning path. If the sweeping robot determines that there is still a large amount of liquid on the floor, the sweeping robot may repeatedly perform the step of recovering the sewage until the sweeping robot determines that there is not already a large amount of liquid on the floor. Thereafter, the sweeping robot may perform a step of wiping the floor.

When the step of wiping the floor is executed, the sweeping robot can re-plan the optimal cleaning path according to the stop position of the sweeping robot, and can walk continuously from the stop position according to the originally planned optimal cleaning path. The sweeping robot uses the lifting assembly to place the wiping assembly 2 on the floor and then activates the wiping assembly 2 and the sewage recovery assembly 3 simultaneously. When the sweeping robot travels on the ground, the soft scraping strips 221 on the turntable 22 can perform high-frequency friction on the ground, so that the intractable sewage on the ground is scraped off. The liquid thrown out by the soft wiper strip 221 while rotating can be caught by the wiper portion 31 and then recovered by the sewage recovery assembly 3. The dust scraped off by the soft scraping bar 221 can be wiped again by the wiper tray 21. Finally, under the combined action of the turntable 22, the wiper tray 21 and the wiper portion 31, dirt such as sewage and sludge on the floor is cleaned.

After the dinner comes to the kitchen in autumn, she finds that the floor of the kitchen is cleaned to be clean and fresh, and the floor sweeping robot charges the corner of the kitchen silently, so that the user can really say that the user has the function of brushing off the clothes and the name of the user is deeply hidden.

Meanwhile, the turntable embedded with the soft scraping strip is used for replacing the traditional rag, compared with the traditional rag, the soft scraping strip can forcefully scrape stubborn stains on the target surface, the cleaning effect is better, the stains cannot be attached to the soft scraping strip, the problem of secondary pollution can be avoided, and the problem of odor caused by uncleanness of the traditional rag can be avoided.

The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the application are intended to be included within the scope of the application.

Claims

1. A mobile cleaning apparatus, characterized in that the mobile cleaning apparatus comprises at least a main body, a wiping component and a sewage recovery component, wherein,

The body having a forward direction, the wiper assembly and the waste water recovery assembly being located at a bottom of the body and the waste water recovery assembly being located behind the wiper assembly;

The waste water recovery assembly having a wiper portion, the wiper assembly being at least partially located within an arcuate region defined by the wiper portion;

When the mobile cleaning device advances on a target surface, the wiper portion is in interference contact with the target surface to collect the sewage within the arcuate region and cause the sewage recovery assembly to draw the sewage through a water suction line in the wiper portion.

2. The mobile cleaning device of claim 1, wherein the wiper portion comprises a base, wherein,

The base is bent into an arc-shaped structure, and the intrados of the arc-shaped structure faces the advancing direction;

The base is provided with a hollow cavity, the bottom end of the base is provided with a slot, the top end of the base is provided with a water absorbing hole, and the slot and the water absorbing hole are communicated with the hollow cavity to form the water absorbing pipeline.

3. The mobile cleaning apparatus of claim 2, wherein the base has a protrusion at a midpoint of a top end thereof, the water intake Kong Kaishe is on the protrusion, and the top end of the base is gradually lowered from the protrusion toward both ends.

4. The mobile cleaning device of claim 3, wherein the base has a bottom end with a first arc segment, a second arc segment, and a straight segment, wherein,

The opening direction of the first circular arc section and the opening direction of the second circular arc section are both towards the advancing direction;

the first arc section and the second arc section are symmetrically distributed on two sides of the straight section, and two ends of the straight section are respectively and smoothly connected with the first arc section and the second arc section.

5. The mobile cleaning device of claim 4, wherein the slot extends along a length of the base and the slot extends through the first arc segment, the straight segment, and the second arc segment.

6. The mobile cleaning apparatus of claim 5, wherein the slot has a predetermined width and a first spacing exists between the straight section and the wiper assembly.

7. The mobile cleaning device of claim 6, wherein the cleaning device comprises a cleaning element,

The projection of the water absorbing hole on the bottom end of the base is positioned on the straight section;

The cross-sectional area of the hollow cavity gradually increases from the slot to the water absorbing hole, and the longitudinal section of the hollow cavity at the water absorbing hole is funnel-shaped.

8. The mobile cleaning device of claim 7, wherein the wiper portion comprises a first wiper strip, wherein,

The upper end of the first scraping strip is fixed on the rear side wall of the slot, and the first scraping strip is restrained into an arc-shaped structure by the slot;

the length of the first scraping strip is slightly larger than that of the groove, and the first scraping strip is at least partially exposed out of the groove, so that when the mobile cleaning device advances on the target surface, the bottom end of the first scraping strip is in interference contact with the target surface.

9. The mobile cleaning device of claim 8, wherein the wiper portion further comprises a second wiper strip, wherein,

The upper end of the second scraping strip is fixed on the front side wall of the slot, the second scraping strip is restrained into an arc-shaped structure by the slot, and a second interval exists between the first scraping strip and the second scraping strip;

The length of the second scraping strip is slightly smaller than that of the groove, the second scraping strip is at least partially exposed out of the groove, and the length of the exposed part of the second scraping strip is smaller than that of the exposed part of the first scraping strip.

10. The mobile cleaning apparatus of claim 9, wherein the second wiper strip has a plurality of toothed openings and a plurality of support ribs, wherein,

The plurality of toothed openings are uniformly distributed at the bottom end of the second scraping strip, and one supporting rib is arranged between two adjacent toothed openings;

the bottom of the supporting rib is flush with the bottom end of the second scraping strip, and the end part of the supporting rib is abutted with the first scraping strip.

11. The mobile cleaning apparatus of claim 10, wherein the grooved sides are each provided with a flange strip at their top ends, wherein,

The flange strip is at least partially exposed out of the slot, and vertically abuts against the first scraping strip and the second scraping strip at the same time.

12. The mobile cleaning apparatus of claim 11, wherein a length of the exposed portion of the bead is less than a length of the exposed portion of the second wiper strip.

13. The mobile cleaning device of claim 12, wherein the cleaning device comprises a cleaning element,

An included angle formed by a tangent line at the middle point of the first arc section and an extension line of the straight section is less than or equal to 45 degrees;

And an included angle formed by a tangent line at the middle point of the arc of the second circular arc section and an extension line of the straight section is less than or equal to 45 degrees.

14. The mobile cleaning apparatus of claim 4, wherein the wiping assembly comprises at least one wipe tray, wherein the wipe tray is rotatably disposed at a bottom of the body, and wherein the position of any one of the wipe trays at the bottom of the body is configured to: the straight line which passes through the circle center of the rag disc and is parallel to the straight section is not intersected with the first circular arc section.

15. The mobile cleaning device of claim 4, wherein the wiper assembly comprises at least one turntable, wherein,

The turntable is connected with a power device in the machine body so as to rotate under the drive of the power device;

a soft scraping strip is embedded on one side of the turntable, which faces the target surface, and is in interference contact with the target surface when the mobile cleaning device advances on the target surface.

16. The mobile cleaning device of claim 15, wherein the soft wiper strips are distributed in a straight or Y-shape on the turntable, and the position of any one of the turntable at the bottom of the body is configured to: the straight line passing through the circle center of the turntable and parallel to the straight section is not intersected with the first circular arc section.

17. The mobile cleaning apparatus of claim 16, wherein the wiper assembly further comprises at least one wiper disc, wherein the wiper disc is floatingly coupled to the body and the wiper disc is positioned behind the turntable.

18. The mobile cleaning apparatus of claim 1, further comprising a water jet positioned in front of the wiper assembly and in communication with the clean water tank inside the body, the water jet for directing liquid in the forward direction.

19. A wiper assembly module is characterized in that the wiper assembly module at least comprises a base, a wiper part and a negative pressure device, wherein,

The base is provided with a hollow cavity, the bottom end of the base is provided with a slot, the top end of the base is provided with a water absorption hole, and the slot and the water absorption hole are communicated with the hollow cavity to form a water absorption pipeline;

The water scraping part is fixed in the groove and is used for scraping liquid on the target surface;

the negative pressure device is communicated with the water suction hole and is used for sucking liquid scraped by the water scraping part through the water suction pipeline.

20. The wiper assembly module as set forth in claim 19 wherein the wiper portion comprises a first wiper strip, wherein,

The upper end of the first scraping strip is fixed on the rear side wall of the groove, the length of the first scraping strip is slightly larger than that of the groove, and the first scraping strip is at least partially exposed out of the groove.

21. The wiper assembly module as set forth in claim 20 wherein the wiper portion includes a second wiper strip, wherein,

The upper end of the second scraping strip is fixed on the front side wall of the groove, and a second interval exists between the first scraping strip and the second scraping strip;

22. The wiper assembly module as set forth in claim 21 wherein the second wiper strip has a plurality of toothed openings and a plurality of support ribs wherein,

23. The module of claim 22, wherein the grooved side tips are each provided with a bead, wherein,

The flange strip is at least partially exposed out of the slot and vertically abutted with the first scraping strip and the second scraping strip at the same time;

the length of the exposed portion of the rib is smaller than the length of the exposed portion of the second scraper bar.