CN214965086U - Surface cleaning device - Google Patents

Abstract

The application provides a surface cleaning device, including the main part and the subassembly that cleans of setting in the bottom of main part, clean the subassembly and include the cleaning roller, the cleaning roller be provided with mutual non-intersect brush strip and migration strip on the surface, the brush strip includes first brush strip and second brush strip, first brush strip extends to one end from the middle part of cleaning roller, second brush strip extends to the other end from the middle part of cleaning roller, first brush strip is formed with axial clearance with second brush strip at the middle part of cleaning roller, the radial highly of following the cleaning roller of migration strip reduces to the clearance that the middle part formed so that the foreign matter that twines on the cleaning roller migrates to first brush strip and second brush strip at the middle part of cleaning roller from the tip of cleaning roller gradually. The surface cleaning device with the structure is convenient to clean the cleaning roller by transferring the foreign matters to the gap in the middle of the cleaning roller.

Description

Surface cleaning device

Technical Field

The application belongs to the clean field, specifically provides a surface cleaning device.

Background

A floor sweeping robot, also known as an automatic sweeper, an intelligent dust collector, a robot dust collector, etc., is one of intelligent household appliances, and can automatically complete the cleaning work of floors in a room by means of certain artificial intelligence.

The current sweeping robot is mainly divided into a suction opening type and a rolling brush type, and the two types of sweeping robots are mainly cleaned in a way that garbage is sucked into a garbage storage box through a dust suction opening, so that the cleaning work of the ground is completed. Unlike the suction type, the roll brush type cleaning robot is provided with a rotatable roll brush, generally a cleaning roller provided with a brush. The cleaning roller is generally located the place ahead of dust absorption mouth, and at the working process of robot of sweeping the floor, the cleaning roller rotates, and at the rotation in-process, the brush that sets up on the cleaning roller just can be with subaerial rubbish raise and send to near the dust absorption mouth to the dust absorption mouth of being convenient for inhales rubbish receiver.

However, in the cleaning process, some filamentous garbage (such as hair, cellosilk and the like) which is not sucked into the garbage storage box in time can be gradually wound on the cleaning roller, and along with the increase of the working time of the sweeping robot, the filamentous garbage can be wound on the cleaning roller more and more, the filamentous garbage is wound more and more disorderly, and the user is very inconvenient when cleaning the cleaning roller. As disclosed in chinese patent publication No. CN110946503A, a vacuum cleaner roll brush is disclosed, which is capable of transferring hairs wound therearound to the middle part through a brush bar during rotation in order to facilitate the user to clean the hairs, thereby allowing the user to intensively clean the hairs wound therearound. Since the brush bars are staggered with each other in the axial direction of the rolling brush of the dust collector, if the brush bars are bristles, filiform garbage can be embedded into the root parts of the bristles, which is not beneficial to cleaning of a user. Cleaning of the scrub roller is still inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, that is, to solve the problem of inconvenient cleaning of the cleaning roller, the present application provides a surface cleaning apparatus, including a main body and a cleaning assembly disposed at the bottom of the main body, where the cleaning assembly includes the cleaning roller, a brush strip and a transfer strip are disposed on the surface of the cleaning roller, the brush strip includes a first brush strip and a second brush strip, the first brush strip extends from the middle of the cleaning roller to one end, the second brush strip extends from the middle of the cleaning roller to the other end, an axial gap is formed between the first brush strip and the second brush strip in the middle of the cleaning roller, and the height of the transfer strip along the radial direction of the cleaning roller gradually decreases from the end to the middle of the cleaning roller so as to transfer the foreign matters wound on the cleaning roller to the gap.

Alternatively, the first brush strip may extend from the middle of the cleaning roller to one end in a forward spiral direction, and the second brush strip may extend from the middle of the cleaning roller to the other end in a reverse spiral direction.

Optionally, the transfer strip includes a first transfer strip extending from the middle of the cleaning roller to one end and a second transfer strip extending from the middle of the cleaning roller to the other end.

Alternatively, the first transfer strip and the second transfer strip may extend in a spiral manner, and the rotation directions of the first transfer strip and the second transfer strip may coincide with the rotation directions of the first brush strip and the second brush strip, respectively.

Alternatively, the aforementioned first transfer strip and the aforementioned second transfer strip overlap each other in the axial direction of the aforementioned cleaning roller.

Alternatively, the brush strip is arranged obliquely along the circumferential direction of the cleaning roller, and the oblique direction of the brush strip is opposite to the rotating direction of the cleaning roller.

Alternatively, the migration strips are arranged obliquely along the circumferential direction of the cleaning roller, and the oblique direction of the migration strips is the same as the rotating direction of the cleaning roller.

Alternatively, the first transfer strip and the second brush strip may overlap each other in the axial direction of the cleaning roller, and the second transfer strip and the first brush strip may overlap each other in the axial direction of the cleaning roller.

Optionally, the surface cleaning device is a self-moving cleaning robot, the cleaning roller is disposed in a mounting groove at the bottom of the main body, a dust suction port and a comb portion arranged side by side with the cleaning roller are formed in a side wall of the mounting groove, a plurality of comb teeth for removing foreign matters wound on the cleaning roller are formed in the comb portion, and the plurality of comb teeth are sequentially inclined from the middle to both sides to remove the foreign matters wound on the first brush strip and the second brush strip.

Optionally, the cleaning robot further includes a dust collecting box, a dust inlet of the dust collecting box is communicated with the dust suction port, a part of a side wall of the mounting groove is formed on the dust collecting box, the comb tooth portion is provided on the dust collecting box, and the comb tooth portion extends into the mounting groove from the dust suction port when the dust collecting box is mounted on the main body.

As can be appreciated by those skilled in the art, the cleaning roller described earlier in the present application has at least the following beneficial effects:

1. through set up first brush strip on the cleaning roller, the migration strip that second brush strip and height reduce gradually, and make first brush strip and second brush strip form axial clearance at the middle part of cleaning roller, make at the rotation in-process of cleaning roller, the winding can remove to the clearance at cleaning roller middle part along the direction that the migration strip height reduced gradually at the foreign matter of cleaning roller, finally concentrate on clearance department, when cleaning the cleaning roller, once only with the foreign matter in the clearance clear up can, make the cleaning process of cleaning roller more convenient. Simultaneously, because the cleaning roller twines the foreign matter and can influence the cleaning of cleaning roller to ground, through concentrating on clearance department with the foreign matter for the foreign matter of winding on the cleaning roller reduces, is favorable to improving the cleaning performance of cleaning roller.

2. Through setting up first brush strip with the form of positive spiral, set up second brush strip with the form of reverse spiral for the part that first brush strip and second brush strip in the rotation are located the cleaning roller tip contacts with by the cleaning surface earlier, then keeps away from the part of tip gradually with by the cleaning surface contact, thereby will be by the middle part gathering of the foreign matter on the cleaning surface toward the cleaning roller, is favorable to improving clean effect. Meanwhile, the foreign bodies wound on the cleaning roller are subjected to component force pointing to the middle of the cleaning roller, so that the foreign bodies are further moved to the gap continuously in the rotating process and are finally wound on the gap area.

3. Through setting up first migration strip and second migration strip to make first migration strip and second migration strip overlap each other in the axial of cleaning roller, make the foreign matter of winding on the cleaning roller can be by the crisscross centre gripping of first migration strip and second migration strip when removing to the clearance, thereby fix the foreign matter and can not continue to twine tight cleaning roller, and then make and form the gap between the surface of foreign matter and cleaning roller, be convenient for collude the foreign matter from the cleaning roller through the gap, convenient clearance.

4. The brush strip is arranged along the circumferential direction of the cleaning roller in an inclined mode, the inclined direction of the brush strip is opposite to the rotating direction of the cleaning roller, the brush strip is not prone to being folded in a hard mode in the rotating process, and the service life of the brush strip is prolonged.

5. The migration strip is obliquely arranged along the circumferential direction of the cleaning roller, and the oblique direction of the migration strip is the same as the rotating direction of the cleaning roller, so that the foreign matters on the cleaned surface can be scooped up by the migration strip in the rotating process, the collection of the foreign matters by the surface cleaning device is facilitated, and the cleaning effect of the surface cleaning device is improved.

6. Through setting up a plurality of broach that incline in proper order to both sides from the centre for a plurality of broach has been divided into two parts, and partly are used for cleaing away the foreign matter of winding on first brush strip, and another part is used for cleaing away the foreign matter of winding on the second brush strip, in order to ensure that the foreign matter of winding on the cleaning roller is in time cleared up by the broach.

7. Through making the broach form on the dust collection box for the broach can pull the foreign matter of winding on the cleaning roller at the in-process that the dust collection box was dismantled from the main part, thereby tears the foreign matter on the cleaning roller.

Drawings

Some embodiments of the present application are described below with reference to the accompanying drawings, in which:

FIG. 1 is an isometric view of a cleaning robot in a preferred embodiment of the present application;

FIG. 2 is an exploded view of the cleaning robot in the preferred embodiment of the present application;

FIG. 3 is a front view of a scrub roller of the preferred embodiment of the present application;

FIG. 4 is a left side view of the scrub roller of the preferred embodiment of the present application;

FIG. 5 is an isometric view of a body in a preferred embodiment of the present application;

figure 6 is an isometric view of a dust bin in a preferred embodiment of the present application;

FIG. 7 is an enlarged view of section E of FIG. 6;

FIG. 8 is a schematic view showing the arrangement of comb teeth in the preferred embodiment of the present application;

fig. 9 is a schematic diagram illustrating the effect of the comb teeth in cleaning foreign matters in the preferred embodiment of the present application.

List of reference numerals:

100. a main body; 110. mounting grooves; 111. a dust suction port;

200. a cleaning roller; 210. a brush bar; 211. a first brush bar; 212. a second brush bar; 220. a migration strip; 221. a first migration bar; 222. a second migration bar; 230. a gap;

300. a dust collecting box; 310. a dust inlet; 320. a comb-tooth part; 321. comb teeth; 3211. a tooth hook;

400. a mopping assembly; 410. a water tank; 420. mop cloth; 430. a cover;

500. a foreign object.

Detailed Description

It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that a device or an element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

The utility model provides a surface cleaning device includes the main part and sets up the subassembly that cleans in the bottom of main part, clean the subassembly and include the cleaning roller, the cleaning roller be provided with mutual non-intersect brush strip and migration strip on the surface, the brush strip includes first brush strip and second brush strip, first brush strip extends to one end from the middle part of cleaning roller, second brush strip extends to the other end from the middle part of cleaning roller, first brush strip is formed with axial clearance with second brush strip at the middle part of cleaning roller, the radial highly of following the cleaning roller of migration strip reduces gradually so that the foreign matter that twines on the cleaning roller migrates to the clearance of first brush strip and second brush strip at the middle part formation of cleaning roller from the tip of cleaning roller to the middle part.

This application has surface cleaning device of aforementioned structure through set up first brush strip on the cleaning roller, the migration strip that second brush strip and height reduce gradually, and make first brush strip and second brush strip form axial clearance at the middle part of cleaning roller, make the rotation in-process at the cleaning roller, the foreign matter of winding at the cleaning roller can remove to the clearance at cleaning roller middle part gradually along the direction that the migration strip height reduced, finally concentrate on clearance department, when cleaning the cleaning roller, once only with the foreign matter clearance in the clearance come out can, make the cleaning process of cleaning roller more convenient. Simultaneously, because the cleaning roller twines the foreign matter and can influence the cleaning of cleaning roller to ground, through concentrating on clearance department with the foreign matter for the foreign matter of winding on the cleaning roller reduces, is favorable to improving the cleaning performance of cleaning roller.

It should be noted that the surface cleaning device of the present application may be a cleaning device with a grip, and the user may push the cleaning device by holding the grip to complete the cleaning operation, such as an electric mop, or the surface cleaning device of the present application may be a self-moving type cleaning device, such as a cleaning robot.

Next, a specific structure of the surface cleaning apparatus of the present application will be further described with reference to fig. 1 to 4 by taking a cleaning robot as an example.

It should be noted that the embodiments described below are only preferred embodiments of the present application, and do not mean that the present application can be implemented only by the preferred embodiments, which are only used for explaining the technical principle of the present application and are not used for limiting the protection scope of the present application. All other embodiments that can be derived by a person skilled in the art from the preferred embodiments provided herein without inventive step should still fall within the scope of protection of the present application.

As shown in fig. 1 and 2, the cleaning robot includes a main body 100, a cleaning roller 200 rotatably mounted to the main body 100, a dust box 300 detachably mounted to the main body 100, and a floor mopping assembly 400 detachably mounted to the main body 100. When the cleaning robot of the present embodiment is operated, the cleaning roller 100 rotates to sweep the surface to be cleaned and lift foreign matter on the surface to be cleaned. The dust box 300 is used to receive foreign matters. The mopping assembly 400 is used to mop a surface to be cleaned.

Further, although not shown or labeled, the main body 100 is further provided with a dust suction fan and a driving motor for driving the cleaning roller 200 to rotate. During the operation of the cleaning robot, the driving motor drives the cleaning roller 200 to rotate, and thus the cleaning roller 200 picks up foreign materials on the floor. The dust suction fan delivers the foreign substances picked up by the cleaning roller 200 into the dust box 300.

As shown in fig. 3, the surface of the cleaning roller 200 is provided with brush strips 210 and transfer strips 220. Wherein the brush bar 210 includes a plurality of first brush bars 211 and a plurality of second brush bars 212, and the transfer bar 220 includes a plurality of first transfer bars 221 and a plurality of second transfer bars 222. The first brush strip 211 extends from the middle of the scrub roller 200 to one end, the second brush strip 212 extends from the middle of the scrub roller 200 to the other end, and an axial gap 230 is formed between the first brush strip 211 and the second brush strip 212 at the middle of the scrub roller 200. The first migration stripe 221 extends from the middle of the cleaning roller 200 to one end, the second migration stripe 222 extends from the middle of the cleaning roller 200 to the other end, and the height of the first migration stripe 221 in the radial direction of the cleaning roller 200 is gradually reduced from the end of the cleaning roller 200 to the middle, and the height of the second migration stripe 222 in the radial direction of the cleaning roller 200 is gradually reduced from the end of the cleaning roller 200 to the middle.

It should be understood by those skilled in the art that foreign matters (such as hairs, fibers, etc.) are entangled during the rotation of the cleaning roller 200, and when the foreign matters are entangled on the rotating cleaning roller 200, there is a tendency to be entangled toward the surface of the cleaning roller 200, and at this time, the migration bar 220 supports the foreign matters, that is, the foreign matters have a tendency to compress the migration bar 220, and since the height of the migration bar 220 in the radial direction of the cleaning roller 200 is gradually reduced from the end portion to the middle portion of the cleaning roller 200, the foreign matters move in the direction of reducing the height of the migration bar 220 while compressing the migration bar 220, thereby gradually moving into the area of the gap 230.

It should be noted that the transfer bar 220 may be divided into a first transfer bar 221 and a second transfer bar 222, or may be a single bar extending directly from one end of the cleaning roller 200 to the other end. The gradual decrease in the height of the migration stripe 220 may be a gradual decrease or a stepwise decrease, as long as the shape tends to decrease, and the effect of collecting the foreign matter toward the center of the cleaning roller 200 can be achieved.

With continued reference to fig. 3, the plurality of first brush strips 211 and the plurality of first transfer strips 221 are spaced apart, and the plurality of second brush strips 212 and the plurality of second transfer strips 222 are spaced apart. The first brush strips 211 and the first migration strips 221 extend from the middle of the cleaning roller 200 to one end along the forward spiral direction, and the second brush strips 222 extend from the middle of the cleaning roller 200 to the other end along the reverse spiral direction, that is, during the rotation of the cleaning roller 200, the portions of the brush strips 210 and the migration strips 220, which are located at the ends of the cleaning roller 200, contact the surface to be cleaned first, and then the portions which are far away from the ends of the cleaning roller 200 gradually contact the surface to be cleaned. Taking the first brush bar 211 and the second transfer bar 222 in fig. 1 as an example, during the rotation of the cleaning roller 200, the left end of the first brush bar 211 contacts with the surface to be cleaned first, then the portion from left to right gradually contacts with the surface to be cleaned, and the right end of the second transfer bar 222 contacts with the surface to be cleaned first, then the portion from right to left gradually contacts with the surface to be cleaned.

Based on the foregoing description, those skilled in the art can understand that the rotating brush bars 210 and the migration bars 220 can gather foreign substances on the surface to be cleaned toward the middle of the cleaning roller 200, thereby improving the cleaning effect. Meanwhile, the foreign materials wound around the cleaning roller 200 can be gathered toward the middle of the cleaning roller 200, so that the foreign materials are further moved toward the gap 230 continuously during the rotation process and are finally wound around the gap 230 area.

It should be noted that the number of brush strips 210 and transfer strips 220 and the degree of spiraling shown in fig. 3 is only one of the embodiments. The number and the degree of the spiral of the brush strips 210 and the transfer strips 220 may be adjusted by those skilled in the art according to production requirements, for example, only one first brush strip 211 and only one second brush strip 212 are provided, and the spiral degree of the first brush strip 211 and the second brush strip 212 wraps the entire circumference of the cleaning roller 200.

As shown in fig. 3, further, the first transfer strips 221 and the second brush strips 212 overlap each other in the axial direction of the cleaning roller 200, and the second transfer strips 222 and the first brush strips 211 overlap each other in the axial direction of the cleaning roller 200, that is, the first transfer strips 221 and the second transfer strips 222 pass through the gaps 230. When the foreign matters wound on the cleaning roller 200 move to the area of the gap 230, the foreign matters are still supported by the transfer strips 220, and the first transfer strips 221 and the second transfer strips 222 clamp the foreign matters wound on the cleaning roller 200 in a staggered manner, so that the foreign matters are difficult to wind tightly on the cleaning roller 200, gaps can be formed between the foreign matters and the surface of the cleaning roller 200, when the cleaning roller 200 is cleaned, the foreign matters can be hooked down by extending a tool into the gaps, and the cleaning roller 200 is more convenient to clean.

It should be noted that the first and second transfer strips 221, 222 may not overlap the second and first brush strips 212, 211, but only the first and second transfer strips 221, 222. In addition, the stepped first and second transfer bars 221 and 222 as shown in fig. 1 are a preferable way of sandwiching the foreign matter, and can support the foreign matter with a low step to have a gap between the foreign matter and the cleaning roller 200 and sandwich the foreign matter with a step height.

As shown in fig. 4, further, the brush strips 210 are arranged obliquely along the circumferential direction of the cleaning roller 200, the oblique direction of the brush strips 210 is opposite to the rotational direction of the cleaning roller 200 when rotating, the migration strips 220 are arranged obliquely along the circumferential direction of the cleaning roller 200, the oblique direction of the migration strips 220 is the same as the rotational direction of the cleaning roller 200 when rotating, that is, each small segment of the brush strips 210 is oblique to the direction opposite to the rotational direction of the cleaning roller 200, and each small segment of the migration strips 220 is oblique to the direction same as the rotational direction of the cleaning roller 200 on the basis that each small segment of the brush strips 210 and the migration strips 220 are perpendicular to the circumferential surface of the cleaning roller 200 with which they are in contact. As shown in fig. 2, the cleaning roller 200 rotates in a clockwise direction, taking a small section of the first transfer stripe 221 near the end of the cleaning roller 200 as an example, the direction a is a vertical direction, and the first transfer stripe 221 deflects in the direction B, that is, inclines in the same direction as the rotation direction of the cleaning roller 200. Taking a short section of the end of the first brush strip 211 close to the scrub roller 200 as an example, the direction C is a vertical direction, and the first brush strip 211 is deflected in the direction D, that is, inclined in a direction opposite to the rotation direction of the scrub roller 200.

As can be understood by those skilled in the art, by arranging the brush bar 210 obliquely along the circumferential direction of the cleaning roller 200 and making the oblique direction of the brush bar 210 opposite to the rotation direction of the cleaning roller 200, it is possible to prevent one end of the brush bar 210 away from the surface of the cleaning roller 200 from colliding with the surface to be cleaned and causing the brush bar 210 to be folded hard, thereby contributing to the improvement of the service life of the brush bar 210. The migration strips 220 are obliquely arranged along the circumferential direction of the cleaning roller 200, and the oblique direction of the migration strips 220 is the same as the rotating direction of the cleaning roller 200, so that the foreign matters on the cleaned surface can be scooped up by the migration strips 220 in the rotating process, the collection of the foreign matters is facilitated, and the cleaning effect is improved.

As shown in fig. 5, the main body 100 is provided with a mounting groove 110, and the mounting groove 110 has a dust suction opening 111 adapted to a dust inlet 310 (shown in fig. 5) of the dust box 300. The cleaning roller 200 is installed in the installation groove 110.

As shown in fig. 6, the dust collecting case 300 is provided with a dust inlet 310, a comb portion 320, and an air outlet (not shown). In a state where the dust box 300 is mounted to the main body 100, the dust box 300 constitutes a portion of a sidewall of the mounting groove 110 such that the dust inlet 310 is aligned with the dust suction port 111 (shown in fig. 4) of the main body 100. Further, the comb part 320 is disposed at a top side of the dust inlet 310.

As shown in fig. 6 and 7, the comb part 320 includes a plurality of comb teeth 321, and in a state where the dust box 300 is mounted on the main body 100, the plurality of comb teeth 321 are inserted into the mounting groove 110 from the dust suction port 111, and an arrangement direction of the plurality of comb teeth 321 is parallel to an axial direction of the cleaning roller 200. Further, the plurality of comb teeth 321 are sequentially inclined from the middle to both sides to remove foreign substances wound on the brush bar 210 and the migration bar 220, respectively, and the plurality of comb teeth 321 are arranged at a length shorter than the cleaning length of the cleaning roller 200. Still further, the plurality of comb teeth 321 are arranged such that the angle of inclination of the comb teeth 321 closer to the end of the cleaning roller 200 is larger. Preferably, the central axis of each comb tooth 321 intersects the central axes of the other comb teeth 321, and the diameter of the circumscribed spherical surface of the intersection point of all the central axes with each other is less than 3cm (the diameter d of the dotted circle shown in fig. 8), for example, 1cm, 1.8cm, 2cm, 2.5cm, etc. In other words, the plurality of comb teeth 321 are distributed like a fan shape such that adjacent two of the plurality of comb teeth 321 have the same pitch, which refers to the angle between the adjacent two comb teeth 321.

Although not shown in the drawings, the height of a portion of the plurality of comb teeth 321 located at the center of the cleaning roller 200 is greater than the height of the other comb teeth 321 to accommodate the tendency of the heights of the first and second transfer stripes 221 and 222 to vary (i.e., the heights decrease from the ends to the center of the cleaning roller 200).

As shown in fig. 6 and 7, each comb tooth 321 has a tooth hook 3211, and the tooth hook 3211 of each comb tooth 321 is directed toward the dust box 300. Also, in a state where the dust box 300 is mounted to the main body 100, the tooth hook 3211 is located at the rear upper side of the cleaning roller 200 while interfering with the brush bar 210 and the transfer bar 220, so as to hook foreign substances wound around the cleaning roller 200 with the rotation of the cleaning roller 200, thereby cleaning the foreign substances on the cleaning roller 200. Further, the tooth hook 3211 of each comb tooth 321 is directed to the dust inlet 310 of the dust box 300, so that the foreign matters cleaned by the tooth hook 3211 are directly conveyed into the dust box 300 by the dust suction fan.

It should be noted that, during the operation of the cleaning robot, the rotation direction of the cleaning roller 200 is directed to the tooth hook 3211, in other words, the direction of the tooth hook 3211 is away from the rotation direction of the cleaning roller 200, so that the tooth hook 3211 can smoothly hook the foreign matter wound on the cleaning roller 200 and tear the foreign matter wound on the cleaning roller 200 along with the rotation of the cleaning roller 200.

The principle of the comb teeth 321 for cleaning the foreign materials wound on the cleaning roller 200 will be described in detail with reference to fig. 9.

Note that, in fig. 9, a triangle shown by a dotted line on the comb teeth 321 is used to denote the tooth hook 3211.

As shown in fig. 9, during the operation of the cleaning robot, as the cleaning roller 200 rotates, the ends of the brush strip 210 and the transfer strip 220 close to the end of the cleaning roller 200 first contact the floor, and wind up the foreign materials 500 such as hairs and threads on the floor. As the cleaning roller 200 continues to rotate, the other portions of the brush bar 210 and the transfer bar 220 gradually come into contact with the floor surface until the other ends of the brush bar 210 and the transfer bar 220 come into contact with the floor surface. Accordingly, the foreign substances 500 wound around the cleaning roller 200 extend from the end of the cleaning roller 200 to the middle of the cleaning roller 200.

As can be understood by those skilled in the art, since the foreign matter 500 is wound from the end of the cleaning roller 200 to the middle of the cleaning roller 200, and the foreign matter 500 tends to move in a direction in which the height of the transfer strip 220 decreases, the closer the foreign matter 500 is to the end of the cleaning roller 200, the greater the angle is with the axis of the cleaning roller 200; the foreign matter 500 is located closer to the middle of the cleaning roller 200 at a smaller angle to the axis of the cleaning roller 200.

With continued reference to fig. 9, by increasing the inclination angle of the comb teeth 321 closer to the end of the cleaning roller 200, the included angle between each comb tooth 321 and the corresponding portion of the foreign matter 500 is increased, so that the foreign matter 500 can be caught more easily, and the foreign matter 500 can be cleaned from the cleaning roller 200.

As can be understood by those skilled in the art, the comb teeth 321 are provided on the dust box 300 such that the comb teeth 321 drag the foreign materials 500 wound on the cleaning roller 200 during the detachment of the dust box 300 from the main body 100, thereby tearing the foreign materials 500 from the cleaning roller 200. By arranging the plurality of comb teeth 321 in such a manner that the inclination angle of the comb teeth 321 closer to the end of the cleaning roller 200 is larger, each comb tooth 321 can catch the foreign matter 500 wound on the cleaning roller 200, thereby cleaning the foreign matter 500 wound on the cleaning roller 200. By making the tooth hook 3211 of each comb tooth 321 point to the dust inlet 310 of the dust box 300, the foreign matter 500 cleaned by the tooth hook 3211 can be directly conveyed into the dust box 300 by the dust suction fan.

The comb-teeth 320 may be provided on the dust box 300 or directly on the sidewall of the mounting groove 110, but the dust box 300 is not torn by the foreign substances on the cleaning roller 200 when it is detached.

Based on the foregoing description, it can be understood by those skilled in the art that the cleaning robot of the preferred embodiment can gather the foreign matters wound on the cleaning roller 200 to the gap 230 during the working process, and the foreign matters are gathered at the gap 230, so that the winding of the foreign matters on other parts of the cleaning roller 200 is reduced, and when a user cleans the cleaning roller 200, the user only needs to clean the foreign matters in the gap 230 at one time, so that the cleaning process of the cleaning roller 200 is more convenient. Meanwhile, the comb-teeth part 320 of the dust box 300 can clean the foreign matters wound on the cleaning roller 200 in time, thereby further reducing the winding of the foreign matters on other parts of the cleaning roller 200. Since the cleaning roller 200 is entangled with the foreign matters to affect the cleaning of the cleaning roller 200 to the floor, the foreign matters are concentrated at the gap 230 and are timely cleaned by the comb-tooth part 320, so that the foreign matters entangled on the cleaning roller 200 are reduced, which is beneficial to improving the cleaning effect of the cleaning roller 200.

Returning to fig. 1-2, with continued reference, the floor mopping assembly 400 includes a dustpan-shaped water tank 410, a mop cloth 420 disposed at the bottom of the water tank 410, and a cover 430 for closing a fill hole (not labeled) at the top of the water tank 410. The bottom of the water tank 410 is provided with a liquid outlet, a liquid inlet and a liquid supply aligned with the mop cloth 420. Wherein, the liquid outlet communicates with the inlet of the delivery pump arranged on the main body 100, the liquid inlet communicates with the outlet of the delivery pump, and the liquid inlet communicates with the liquid supply port. When the delivery pump works, the cleaning solution in the water tank 410 can flow through the liquid outlet, the delivery pump, the liquid inlet and the liquid supply port in sequence, and then reach the mop 420 to soak the mop.

It should be noted that the structure and the advantageous effects of the cleaning robot in the above preferred embodiment can be applied to other surface cleaning devices such as an electric mop.

So far, the technical solutions of the present application have been described in connection with the foregoing preferred embodiments, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to the foregoing preferred embodiments. The technical solutions in the above embodiments can be split and combined, and equivalent changes or substitutions can be made on related technical features by those skilled in the art without departing from the technical principles of the present application, and any changes, equivalent substitutions, improvements, and the like made within the technical concept and/or technical principles of the present application will fall within the protection scope of the present application.

Claims (10)

1. A surface cleaning device comprising a main body and a sweeping assembly arranged at the bottom of the main body, the sweeping assembly comprising a cleaning roller,

the cleaning roller comprises a cleaning roller body and is characterized in that a brush strip and a transfer strip which are not intersected with each other are arranged on the surface of the cleaning roller body, the brush strip comprises a first brush strip and a second brush strip, the first brush strip extends from the middle of the cleaning roller body to one end, the second brush strip extends from the middle of the cleaning roller body to the other end, an axial gap is formed between the first brush strip and the second brush strip in the middle of the cleaning roller body, and the height of the transfer strip along the radial direction of the cleaning roller body is gradually reduced from the end portion to the middle of the cleaning roller body so that foreign matters wound on the cleaning roller body can be transferred to the gap.

2. A surface cleaning apparatus as claimed in claim 1, characterised in that the first brush strip extends in a forward spiral direction from the middle of the cleaning roller to one end and the second brush strip extends in a reverse spiral direction from the middle of the cleaning roller to the other end.

3. A surface cleaning apparatus as claimed in claim 2, characterised in that the migration strips comprise a first migration strip extending from the centre of the cleaning roller towards one end and a second migration strip extending from the centre of the cleaning roller towards the other end.

4. A surface cleaning apparatus as claimed in claim 3, characterised in that the first and second transfer strips each extend in a helical manner, the direction of rotation of the first and second transfer strips corresponding to the direction of rotation of the first and second brush strips, respectively.

5. The surface cleaning apparatus according to claim 3, wherein the first transfer bar and the second transfer bar overlap each other in an axial direction of the cleaning roller.

6. A surface cleaning apparatus as claimed in any one of claims 1 to 5, characterised in that the brush bar is arranged inclined in the circumferential direction of the cleaning roller, the direction of inclination of the brush bar being opposite to the direction of rotation of the cleaning roller.

7. The surface cleaning apparatus according to claim 3, wherein the transfer bar is arranged obliquely along a circumferential direction of the cleaning roller, and an oblique direction of the transfer bar is the same as a rotational direction of the cleaning roller.

8. The surface cleaning apparatus according to claim 4, wherein the first transfer bar and the second brush bar overlap each other in the axial direction of the cleaning roller, and the second transfer bar and the first brush bar overlap each other in the axial direction of the cleaning roller.

9. The surface cleaning apparatus of claim 2, wherein the surface cleaning apparatus is a self-moving type surface cleaning apparatus, the cleaning roller is installed in a mounting groove formed in a bottom of the main body, a side wall of the mounting groove is provided with a dust suction port and a comb portion arranged side by side with the cleaning roller, the comb portion is provided with a plurality of comb teeth for removing foreign matters wound around the cleaning roller, and the plurality of comb teeth are sequentially inclined from a middle to both sides to remove the foreign matters wound around the first brush strip and the second brush strip, respectively.

10. The surface cleaning apparatus of claim 9, further comprising a dust collection box, wherein a dust inlet of the dust collection box is communicated with the dust suction port, a portion of a sidewall of the mounting groove is formed on the dust collection box, the comb-tooth portion is disposed on the dust collection box, and the comb-tooth portion extends into the mounting groove from the dust suction port when the dust collection box is mounted on the main body.

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