CN113475979A

CN113475979A - Rolling brush structure of sweeper and sweeper

Info

Publication number: CN113475979A
Application number: CN202110860117.7A
Authority: CN
Inventors: 陈百川; 黄宇磊
Original assignee: Shanghai Aiji Microelectronics Technology Co ltd
Current assignee: Shanghai Aiji Microelectronics Technology Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-10-08

Abstract

The rolling brush structure of the sweeper and the sweeper provided by the invention have the advantages that the cylindrical surface of the brush cylinder is provided with the groove, the upper surface of the rolling brush opening is provided with the downward blade which is inserted into the groove, when the brush cylinder rotates, the blade can translate left and right along the length direction of the groove, so that when the sweeper works, the brush cylinder rotates along the axial direction under the driving of the brush cylinder, and the brush bristles brush the ground in the front and back directions, meanwhile, the blade is inserted into the groove and pushed by the back side surface of the groove to translate along the length direction of the groove in one direction, long fiber sundries wound on the bristles are cut, and the cut short fiber sundries are easily sucked and removed from the bristles, therefore, when the sweeper works, long fiber sundries wound on the brush hair cannot be accumulated to block the brush cylinder from rotating, and therefore the cleaning effect is ensured. Meanwhile, long fiber sundries can not be accumulated on the bristles after being wound, and the long fiber sundries do not need to be removed manually.

Description

Rolling brush structure of sweeper and sweeper

Technical Field

The invention belongs to the technical field of sweeping robots, and particularly relates to a rolling brush structure of a sweeper and the sweeper.

Background

A floor sweeper, also called a floor sweeping robot, an automatic sweeper, intelligent dust collection, a robot dust collector and the like, is one of intelligent household appliances, and can automatically complete the floor cleaning work in a room by means of certain artificial intelligence and avoiding obstacles. The sweeper with a little strong force at least comprises a walking structure, a rolling brush structure and a suction structure, wherein the walking structure is arranged on a group of rollers on the bottom surface of the sweeper, the sweeper is moved in all directions, the rolling brush structure brushes and sweeps the just opposite floor of the sweeper through one or more rows of rolling bristles to lift up dirt or dust and the like on the floor, then the suction structure sucks the lifted dirt or dust and the like into a garbage storage box of the sweeper in a vacuum adsorption mode, and therefore the ground cleaning function is completed.

Most of the prior sweeper, the rolling brush structure of the roller brush usually comprises a cylindrical brush drum, the outer surface of the brush drum is usually wound at least one circle around the brush drum, a plurality of clusters of brush hairs are planted in an inclined circular shape, and the brush hairs in the circle sequentially brush the ground in one direction along with the axial rotation of the brush drum so as to lift up dirt or dust.

However, in many cases, such as in a household scene, there are long-fiber impurities such as hair on the floor, and because the bristles of the rolling brush structure are usually operated by rolling brush, the long-fiber impurities are easily wound on the bristles, rather than being sucked after being lifted. After winding, on one hand, the long fiber sundries are wound too much, which can cause unsmooth subsequent rotation of the brush barrel, and on the other hand, after cleaning every time, the bristles need to be cleaned manually, and the long fiber sundries are removed, which is inconvenient and can bring secondary pollution.

Accordingly, the prior art is subject to further improvements and enhancements.

Disclosure of Invention

In view of the above defects in the prior art, an object of the present invention is to provide a roller brush structure of a sweeper and a sweeper, so as to solve the problem that the roller brush structure of the conventional sweeper is easily entangled by long fiber impurities.

The technical scheme of the invention is as follows:

the invention discloses a rolling brush structure of a sweeper, which comprises a rolling brush opening, wherein the rolling brush opening comprises an inwards concave upper surface, at least one long cylindrical brush barrel is covered, and the brush barrel can be axially and rotatably fixed below the upper surface; the cylindrical surface of the brush cylinder is provided with at least one groove, the groove and the axial direction of the brush cylinder are arranged in an acute angle and extend along the axial direction of the brush cylinder, and two ends of the groove are mutually connected or are opened on the end surface of the brush cylinder; the cylindrical surface also comprises a plurality of clusters of bristles which are distributed on the cylindrical surface along two sides of the groove; the upper surface faces the brush roll, a sliding rail is fixed, and the sliding rail is parallel to the brush roll; and the upper end of the blade is arranged on the sliding rail on the upper surface in a translation way, and the lower end of the blade is inserted into the groove in an approximately parallel way and can translate along the length direction of the groove.

According to the rolling brush structure of the sweeper, the grooves are formed in the cylindrical surface of the brush barrel, the downward blades are arranged on the upper surface of the rolling brush opening and inserted into the grooves, and the brush barrel can translate left and right along the length direction of the grooves when rotating, so that when the sweeper works, the brush barrel is driven to rotate axially, the bristles brush the ground in the front and back directions, meanwhile, the blades are inserted into the grooves and pushed by the rear side surfaces of the grooves, the blades translate along the length direction of the grooves in one direction, long fiber sundries wound on the bristles are cut, the cut short fiber sundries are easily sucked and removed from the bristles, and therefore, the long fiber sundries wound on the bristles cannot be accumulated to block the rotation of the brush barrel when the sweeper works, and therefore the cleaning effect is guaranteed. Meanwhile, long fiber sundries can not be accumulated on the bristles after being wound, and the long fiber sundries do not need to be removed manually.

Preferably, the groove is a smooth curve of constant width extending along the axial direction at a constant inclination angle. Because the blade translates along the groove, a groove of equal width and smoothness will provide minimal resistance.

Preferably, the groove comprises a forward groove and a reverse groove, the two ends of the forward groove and the two ends of the reverse groove are communicated, and the forward groove and the reverse groove are arranged in a Z shape and separated from each other. The blade is driven by the rotation of the forward groove from one end of the forward groove to the other end of the forward groove, automatically enters the reverse groove along with the continuous rotation of the brush barrel after moving to the other end of the forward groove, horizontally moves along the reverse groove, and returns to one end of the forward groove to finish a translation period. And when the blade translates, the cutting operation can be performed on the long fiber sundries which cross the groove and are wound on the brush hairs on the two sides of the groove.

More preferably, the grooves are provided along the entire length of the brush cartridge. So that the blade can move and cut along the entire length of the brush cylinder. Thereby ensuring that long fiber sundries on the brush bristles at two sides of the two end parts of the brush barrel are not missed.

Further preferably, the forward groove and the reverse groove extend obliquely to the entire length of the brush barrel along half a turn of the cylindrical surface, respectively. Namely, the forward groove and the reverse groove respectively form a half-circle spiral, and after the forward groove and the reverse groove are connected end to end, a complete loop is formed, and the complete loop is arranged from one end of the brush cylinder to the other end along the cylindrical surface of the brush cylinder.

Preferably, the blade body of the blade is parallel to the side of the recess. I.e. the blade will cut at an angle perpendicular to the long fiber impurities during the movement, which facilitates the cutting operation.

More preferably, the blade includes front and rear blade portions. In this way, whether the blade translates in the forward direction or the reverse direction, the long fiber impurities in front of the blade and across the two sides of the groove can be cut.

Preferably, the slide rail is parallel to the length direction of the brush barrel, and the upper end of the blade can be twisted in the slide rail. The upper ends of the blades are arranged to be torsionally connected, because the extension direction of the recess is not parallel to the blades when the blades are turned from the forward groove into the reverse groove, the blades need to be twisted to adapt to the extension direction of the recess.

The invention also discloses a sweeper, which comprises a moving structure for moving the sweeper, a suction structure for sucking and filtering air below the sweeper, and any one of the rolling brush structures, wherein a suction port of the suction structure is opened on the upper surface. Therefore, after the rolling brush structure is arranged on the sweeper, the suction port of the suction structure is opposite to the lower brush barrel for suction, so that sundries raised by the brush bristles are sucked into the dust collecting bag in the sweeper when the brush barrel rotates. And the blade is driven by the brush barrel to translate along the groove and cut long fiber sundries wound on the bristles on the two sides of the groove. And after the long fiber sundries are cut, the long fiber sundries are easily sucked and removed by the suction structure.

The working method of the sweeper comprises the following steps:

a. the blade is inserted into the groove;

b. the brush barrel is driven to rotate around the axial direction, the rear side surface of the groove pushes the blade to move left and right along the sliding rail, and long fiber sundries which cross the groove and are wound on the brush bristles are cut;

c. the bristles raise dirt or dust on the ground, and the dirt or dust is filtered and left in a garbage storage box of the sweeper after being sucked through the suction port;

the steps b and c are not in sequence.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of the whole structure of the floor sweeper with the bottom facing upwards;

FIG. 2 is a schematic view of the entire structure of the roll brush port of the present invention;

FIG. 3 is an expanded view of the cylindrical surface of the brush cartridge of the present invention;

in the figure, 10 is a sweeper, 11 is a roller, 12 is a suction port, 13 is an upper surface, 14 is a slide rail, 20 is a blade, 21 is a blade moving direction, 31 is a brush barrel, 32 is bristles, 33 is a groove, 34 is a forward groove, 35 is a reverse groove, and 40 is a rotating direction.

Detailed Description

The invention provides a rolling brush structure of a sweeper and the sweeper, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention discloses a rolling brush structure of a sweeper, which is arranged on the bottom surface of the sweeper, and fig. 1 is a schematic diagram of the overall structure of a sweeper 10 with the bottom surface upward. As shown in fig. 1, a moving structure, such as a set of rollers 11, is disposed on the bottom surface of the sweeper 10, and the sweeper 10 is driven to move around; and a suction structure including an air extractor for sucking and filtering air right under the sweeper 10 so as to clean the ground covered by the sweeper 10 during movement. Wherein, the bottom surface of the sweeper 10 is further provided with a rolling brush opening, and the upper surface 13 of the rolling brush opening is concave towards the upper cover of the sweeper 10. The suction opening 12 of the suction structure opens into the upper surface 13, preferably a circular or rectangular opening with a certain area at the top of the upper surface 13. The concave of the rolling brush opening is provided with a long cylindrical brush barrel 31 which rotates around the long axis direction under the driving, the suction opening 12 is just over the brush barrel 31, and if the suction opening 12 is rectangular, the long edge of the rectangle is parallel to the axial direction of the brush barrel 31. The brush barrel 31 is provided with a plurality of clusters of brush hairs 32, when the brush barrel 31 rotates, the brush hairs 32 brush the ground in one direction in turn, impurities and dust on the ground are lifted, meanwhile, the suction port 12 sucks air below the sweeper 10, and the impurities and the dust in the air are sucked and filtered into a dust collecting bag in the sweeper.

The specific structure of the rolling brush opening is shown in fig. 2, and includes a concave upper surface 13, and at least one long cylindrical brush cylinder 31 covered with the concave upper surface, and the specific number of the brush cylinders 31 can be completely set according to the requirement and the size of the rolling brush opening, for example, one or two or even more parallel brush openings are set. Each brush cylinder 31 is fixed below the upper surface 13 along the long axis direction thereof and can rotate around the axial direction thereof under driving, and the cylindrical surface of each brush cylinder 31 is also provided with a plurality of clusters of bristles 32 similar to the existing sweeper. The improvement of the present invention is that at least one groove 33 is provided on the cylindrical surface of the brush cylinder 31, which approximately axially crosses the brush cylinder 31, the groove 33, preferably a smooth curve with equal width, keeps an acute angle with the central axis of the brush cylinder 31, extends along the axial direction of the brush cylinder 31, and the two ends of the groove, either connected with each other or both open on the end surface of the brush cylinder 31, may be the same end surface or different end surfaces. The groove 33 can be only one groove, but is inclined and opened on different end surfaces after spanning the whole length of the brush cylinder 31; it can also be arranged in a plurality of groups which are connected end to end in an inclined way, and the brush cylinder 31 can be covered in sections. Correspondingly, a slide rail 14 is arranged below the upper surface 13, facing the brush roller 31, the slide rail 14 being parallel to the brush roller 31 and preferably facing and at least over the entire length of the brush roller 31. And, at least one blade 20 disposed up and down, the upper end is slidable on the slide rail 14, and the lower end is inserted into the groove 33 approximately in parallel. Thus, when the brush cylinder 31 rotates, both side surfaces of the groove 33 also rotate in the same direction, and the blade 20 inserted into the groove 33 is pushed by the rear side surface of the groove 33. Because the groove 33 is not parallel to the main axis direction of the brush barrel 31, the lower end of the blade 20 is pushed by the rear side of the groove 33, and the upper end of the blade is limited by the slide rail 14, and can only slide along the slide rail 14 in a translational manner along the inclined direction of the groove 33, i.e. the lower end of the blade can only slide along the rear side of the groove 33. Thus, the long fiber impurities wound around the bristles 32 and crossing the grooves 33 are cut and broken by the blades 20. Of course, at least one of the front and rear edges of the blade 20, preferably two, is provided as a sharp edge, i.e. the blade is parallel to the side of the groove 33, to facilitate translation, and the edge will be perpendicular to the advancing direction, i.e. the direction of extension of the groove 33, to facilitate cutting. The bristles 32 are distributed along the two sides of the groove 33 on the cylindrical surface. I.e. the groove 33 passes between the two tufts of bristles 32.

Given that the recess 33 is not straight, there is some twisting of the blade 20 as it translates against the rear side of the recess 33. Therefore, in a preferred embodiment, the slide rail 14 is parallel to the length direction of the brush barrel 31, and the upper end of the blade 20 can be twisted in the slide rail 14. Thereby facilitating the change of the advancing direction following the direction of the groove 33 and keeping the abutment with the rear side of the groove 33.

In a preferred embodiment, the recess 33 includes a forward groove 34 and a reverse groove 35 communicating with each other at two ends, and the forward groove 34 and the reverse groove 35 are arranged in a zigzag shape and separated from each other, so as to ensure that the blade 20 inserted therein reciprocates in opposite directions in the forward groove 34 and the reverse groove 35 under the pushing of the rear side surface. More preferably, the forward groove 34 and the reverse groove 35 extend obliquely to the entire length of the brush barrel 31 along half a turn of the cylindrical surface, respectively. Specifically, as shown in fig. 3, the two ends of the forward groove 34 and the reverse groove 35 are connected, and the bristles are distributed on two sides of the forward groove 34 and the reverse groove 35. Therefore, when the brush cylinder 31 is driven to rotate in one direction, for example, the rotation direction 40 in fig. 3, i.e., the direction opposite to the forward direction of the sweeper 10, the blade 20 slides to the right in the forward groove 34 at the lower part in the drawing along the blade moving direction 21, and when the blade 20 slides to the right end face, the blade enters the reverse groove 35 and slides to the left end face along the blade moving direction 21 under the pushing of the rear side face, and the sliding is repeated, and meanwhile, long fiber impurities wound on the bristles 32 at both sides of the groove 33 and crossing over the groove 33 are cut in the sliding.

Since the blade 20 is required to perform a reciprocating cutting movement in the left and right directions, the blade 20 preferably includes two front and rear blade portions so as to cut the long fiber impurities caught in the translation in the left and right directions.

In summary, when the rolling brush structure of the present invention is installed on the sweeper 10, the suction opening 12 of the suction structure is opposite to the lower brush cylinder 31 for suction, so that when the brush cylinder 31 rotates, the dirt or dust raised from the floor by the brush bristles 32 is sucked and filtered, and then enters the dust collecting bag inside the sweeper 10. Meanwhile, the blade 20 is driven by the brush drum 31 to move horizontally along the groove 33 and cut long fiber sundries wound on the bristles 32 at two sides of the groove 33. And after the long fiber sundries are cut, the long fiber sundries are easily sucked and removed by the suction structure. Therefore, the problem that the brush cylinder 31 or the brush bristles 32 are wound by long fiber sundries is not needed to be worried about, and the long fiber sundries are not needed to be manually removed, so that the sanitation is ensured.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A rolling brush structure of a sweeper is characterized by comprising a rolling brush opening, wherein the rolling brush opening comprises an inwards concave upper surface and is covered with at least one long cylindrical brush barrel, and the brush barrel can be axially and rotatably fixed below the upper surface;

the cylindrical surface of the brush cylinder is provided with at least one groove, the groove and the axial direction of the brush cylinder are arranged in an acute angle and extend along the axial direction of the brush cylinder, and two ends of the groove are mutually connected or are opened on the end surface of the brush cylinder;

the cylindrical surface also comprises a plurality of clusters of bristles which are distributed on the cylindrical surface along two sides of the groove;

the upper surface faces the brush roll, a sliding rail is fixed, and the sliding rail is parallel to the brush roll;

and the upper end of the blade is arranged on the sliding rail in a translation way, and the lower end of the blade is inserted into the groove in an approximately parallel way and can translate along the length direction of the groove.

2. A roller brush structure according to claim 1, wherein said groove is a smooth curve of constant width extending in said axial direction at a constant inclination angle.

3. The roll brush structure according to claim 1, wherein the groove comprises a forward groove and a reverse groove having both ends communicated with each other, and the forward groove and the reverse groove are arranged in a zigzag shape to be separated from each other.

4. A roller brush structure according to claim 3, wherein the grooves are provided along the entire length of the brush barrel.

5. The roll brush structure according to claim 4, wherein the forward groove and the reverse groove are inclined to extend along a half turn of the cylindrical surface to the full length of the brush barrel, respectively.

6. A roller brush structure according to any one of claims 1 to 5, wherein the blade body of the blade is parallel to the side of the recess.

7. The rolling brush structure of claim 6, wherein the blade comprises front and rear blade portions.

8. A roller brush structure according to any one of claims 1 to 5, wherein the slide track is parallel to the length of the brush cartridge, and the upper end of the blade is rotatable in the slide track.

9. A sweeper, characterized by comprising a moving structure for moving the sweeper and a suction structure for sucking and filtering air below the sweeper, and further comprising a rolling brush structure according to any one of claims 1 to 8, wherein a suction port of the suction structure opens onto the upper surface.

10. The method of operating a sweeper of claim 9, comprising the steps of:

a. the blade is inserted into the groove;

the steps b and c are not in sequence.