KR102094660B1 - Brush device for vacuum cleaner - Google Patents

Abstract

The present invention discloses a foreign material suction device for a vacuum cleaner. Disclosed is a foreign material suction device for a vacuum cleaner, a brush housing provided in the cleaner body, a brush rotating space part formed in the brush housing so that the brush is rotatably coupled, and a foreign material sucked through the brush rotating space part to the outside of the brush housing. It is formed on one side of the brush rotating space portion to prevent the separation, it characterized in that it comprises a suction portion for preventing the alien substance from connecting the brush rotating space portion and the cleaner body. Therefore, the present invention can prevent the foreign matter having a relatively large particle from being sucked into the inside, and then discharged again to the outside by its weight, and prevent the foreign matter from revolving in one place of the brush housing, thereby improving the effect of removing the foreign matter. I can do it.

Description

Foreign material suction device for vacuum cleaners {BRUSH DEVICE FOR VACUUM CLEANER}

The present invention relates to a foreign material suction device for a vacuum cleaner, and more specifically, after a relatively large foreign material is sucked in, it can be prevented from being discharged back to the outside by its weight, and the foreign material revolves in one place. It relates to a foreign matter suction device for a vacuum cleaner to prevent the phenomenon to improve the removal effect of foreign matter.

In general, a vacuum cleaner is a device that performs cleaning by suctioning foreign matter on a cleaning surface with suction power generated by driving a fan, and a vacuum cleaner body generating suction power and a suction duct extending from the vacuum cleaner body to suck foreign matter on the cleaning surface And a connector for connecting the suction duct and the cleaner body.

The vacuum cleaner is manufactured in various types of suction ducts to increase the efficiency of cleaning according to the place or location to be cleaned. For example, the suction duct may be provided with a brush so as to remove foreign substances such as hair and thread at the same time while inhaling dust from a pallet or sofa made of fibers such as carpet.

In recent years, the use of a robot cleaner that automatically cleans dust and the like accumulated on the floor while driving the cleaning area without user intervention is gradually increasing. The robot cleaner detects the cleaning area and obstacles using the sensor at the command of the control means, runs the cleaning area and cleans automatically, and when the battery power inside the device runs out, It is a device that moves to a charging station provided separately in a predetermined position to charge it, and after charging, returns to the original position where it was cleaned again and performs cleaning.

However, the robot cleaner of the prior art as described above does not flow directly into the cleaner body due to its weight when foreign particles with large particles are sucked into the suction duct, or discharges to the outside of the suction duct or continues to hover at a point. There is a problem in that the inhalation effect of the foreign matter having large particles is significantly lowered due to the phenomenon that is caused.

Therefore, there is a need to improve this.

Meanwhile, in Korean Patent Publication No. 10-2006-0038798 (Publication Date: May 04, 2006), "Suction Duct for Robot Cleaners" is disclosed, and Korean Patent Publication No. 10-1998-054307 (Publication Date: On September 25, 1998), a "vacuum cleaner suction brush" was disclosed.

The present invention was created by the necessity as described above, and gradually moves while preventing large foreign matter flowing into the brush housing from being removed from the brush housing, so that the foreign matter is discharged back to the outside of the brush housing by its weight. In addition, it is an object of the present invention to provide a foreign material suction device for a vacuum cleaner, which can prevent not only being prevented, but also improve the suction effect and the removal effect of foreign matter by preventing the foreign matter from revolving in one place.

In order to achieve the above object, the foreign matter suction device for a vacuum cleaner according to an aspect of the present invention, a brush housing provided in the cleaner body, and a brush rotating space portion formed in the brush housing so that the brush is rotatably coupled , It is formed on one side of the brush rotating space portion to prevent foreign matter sucked through the brush rotating space portion to escape to the outside of the brush housing, and includes a foreign substance escape prevention suction portion communicating the brush rotating space portion and the cleaner body It is characterized by.

In the present invention, the suction unit for preventing foreign substances from leaving is further characterized in that the central portion further includes a space for transporting foreign substances in communication with the suction duct of the cleaner body.

In the present invention, the space for transporting foreign substances is characterized in that it has a guide inclined surface that is extended toward the fluid suction direction at both ends and slides the foreign substances.

In the present invention, the foreign matter escape prevention suction part is characterized in that the foreign matter transfer space part is provided with a transport slide member for gradually sliding the foreign matter flowing into the fluid suction direction.

In the present invention, the transport slide member is characterized in that a plurality of sliding stepped portions are spaced apart so that the foreign substances sucked into the suction preventing portion from coming into contact and move.

In the present invention, the sliding stepped portion is characterized in that it is formed in a diagonal line with respect to the fluid suction direction of the foreign material.

In the present invention, the foreign matter separation prevention suction unit, the foreign matter drop guide unit to prevent the foreign matter transported along the foreign matter transport space portion from falling to the outside of the foreign material transport space portion to partition the foreign material transport space portion and the brush rotating space portion It is characterized by being extended.

In the present invention, the space for transporting foreign substances is further characterized in that it further includes a foreign substance introduction portion through which foreign substances introduced by the brush are introduced.

In the present invention, the foreign matter inlet is characterized by being formed to extend from the foreign matter escape prevention suction to the brush rotating space based on the vertical extension line of the foreign matter drop guide.

As described above, the foreign matter suction device for a vacuum cleaner according to an aspect of the present invention is gradually prevented from being detached from the brush housing by the transport slide member, where foreign matter having a large particle flowing into the inside is prevented by the brush. As it is moved to the suction duct side, it can be effectively removed.

In addition, the foreign material suction device for a vacuum cleaner according to the present invention has an effect of being smoothly suctioned while preventing the foreign material being transported along the transport slide member from being discharged back to the outside of the brush housing even if it falls back to the lower part by its weight.

In addition, since the foreign material suction device for a vacuum cleaner according to the present invention is transferred to the central portion little by little along the sliding step, it is possible to prevent the foreign substance from hindering at an internal point of the brush housing, thereby improving the suction effect and removal effect of the foreign substance. have.

1 is a perspective view showing a foreign material suction device for a vacuum cleaner according to an embodiment of the present invention.
2 is an exploded perspective view showing a foreign material suction device for a vacuum cleaner according to an embodiment of the present invention.
Figure 3 is an exploded bottom perspective view showing a foreign matter suction device for a vacuum cleaner according to an embodiment of the present invention.
4 is a cross-sectional view taken along line AA in FIG. 1.
5 is a cross-sectional view taken along line BB in FIG. 4.
Figure 6 is a plan view of the upper cover for explaining the foreign matter escape prevention suction unit according to an embodiment of the present invention.
7 is a plan view of an upper cover for explaining a suction unit for preventing foreign matters according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of a foreign material suction device for a vacuum cleaner according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a perspective view showing a foreign matter suction device for a vacuum cleaner according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a foreign material suction device for a vacuum cleaner according to an embodiment of the present invention, Figure 3 is It is an exploded bottom perspective view showing a foreign material suction device for a vacuum cleaner according to an embodiment of the present invention.

In addition, FIG. 4 is a cross-sectional view taken along line AA of FIG. 1, FIG. 5 is a cross-sectional view taken along line BB of FIG. 4, and FIG. 6 is a plan view of the upper cover for explaining a foreign material escape prevention suction part according to an embodiment of the present invention. 7 is a plan view of an upper cover for explaining a suction unit for preventing foreign matters according to an embodiment of the present invention.

1 to 7, the foreign matter suction device 100 for a vacuum cleaner according to an embodiment of the present invention is installed in a vacuum cleaner (not shown), for example, a robot cleaner operated wirelessly, and a robot cleaner During operation, foreign substances such as hair, cloth, and threads are inhaled.

The foreign substance suction device 100 for a vacuum cleaner according to the present embodiment is configured to gradually move the foreign substances from the inside while preventing the relatively large foreign substances that are sucked into the interior from being released or discharged again.

To this end, the foreign material suction device 100 for a vacuum cleaner according to the present embodiment is provided with a brush housing 110 provided in a robot cleaner body and a brush rotation provided in the brush housing 110 and the brush 101 is rotatably installed. It includes a space part 120 and a foreign material escape prevention suction part 130 that suctions while gradually moving a large foreign material introduced by the brush 101.

The brush housing 110 is composed of an upper cover 111 rotatably coupled to the robot cleaner body, and a lower cover 113 coupled to a lower portion of the upper cover 111, and a brush 101 to the upper cover 111 ) Are rotatably combined.

The brush housing 110 forms a brush rotating space part 120 and a foreign material escape prevention suction part 130 through the assembly of the upper cover 111 and the lower cover 113 provided in the robot cleaner body, respectively. Is done.

The brush rotation space part 120 is rotatably installed with a brush 101 that moves the foreign matter to the suction part 130 to prevent foreign matter from being removed during cleaning.

The foreign matter separation prevention suction unit 130 is formed on one side of the brush rotating space unit 120 to prevent foreign matter of large particles sucked by the brush 101 from escaping to the outside of the brush housing 110. The foreign matter escape prevention suction unit 130 communicates with the brush rotating space unit 120 and the cleaner body, and gradually moves foreign matter flowing into the interior.

To this end, the foreign matter escape prevention suction unit 130, the foreign matter transport space 131 for the transport of foreign matter and the foreign matter transferred from the foreign matter transport space 131 to drop inside the foreign matter transport space 131 It includes a foreign matter drop guide section 133 for, and the foreign material inlet 135 for the inflow of foreign matter moved by the brush 101.

Here, the foreign matter departure prevention suction unit 130 is formed with the foreign matter drop guide unit 133 extending vertically downward between the foreign matter departure prevention suction unit 130 and the brush rotating space unit 120, and the foreign matter introduction unit 135 It is formed extending from the lower side of the foreign material escape prevention suction unit 130 to contact the brush 101.

The foreign matter transfer space part 131 has a central portion communicating with the suction duct 103, and is formed to expand internally from both sides toward the central portion. In addition, the foreign matter transfer space 131 is provided with a guide inclined surface 131a that is extended toward the fluid suction direction at both side ends to slide the foreign matter. Through this, the foreign matter flowing into the foreign matter transfer space 131 is more effectively moved along the guide inclined surface 131a.

In addition, the foreign material transport space 131 is provided with a transport slide member 131b therein so as to gradually slide the foreign material flowing in through the foreign material inlet 135 along the fluid suction direction.

The transport slide member 131b is formed on the upper inner surface of the foreign material transport space part 131, and the foreign material introduced into and transferred to the foreign material transport space part 131 is transferred in stages. To this end, the transport slide member 131b includes a sliding stepped portion 131c for contacting and transporting foreign matter sucked into the foreign material escape prevention suction unit 130.

The sliding stepped portion 131c is formed to be spaced apart along the fluid intake direction of the foreign matter so that the foreign matter being transported according to the suction of the fluid can be gradually and gradually transferred. In particular, the sliding stepped portion 131c is formed diagonally with respect to the suction direction of the fluid for the gradual transfer of foreign matter.

For example, the foreign material flowing into the foreign material transport space 131 through the foreign material inlet 135 is transferred upwardly along the inner surface of the foreign material transport space 131 to be contacted with the sliding stepped portion 131c and transferred diagonally. However, even if it is lowered by the weight, it does not escape to the outside, and is re-introduced into the sliding stepped portion 131c on the spot, and is transferred along the oblique guide surface of the sliding stepped portion 131c. As this process is repeated, foreign matter is stably transferred and sucked into the cleaner body through the suction duct 103.

The foreign matter drop guide unit 133 includes a foreign material transport space 131 and a brush rotation space 120 so that foreign matters transported along the sliding stepped part 131c of the transport slide member 131b falls to the foreign material inlet 135. ) Is formed extending downward. That is, the foreign material drop guide part 133 partitions the foreign material transfer space part 131 and the brush rotation space part 120.

The foreign material introduction part 135 is formed to extend from the lower side of the foreign material transport space part 131 toward the brush rotation space part 120 so that the foreign material transported by the brush 101 flows smoothly into the foreign material transport space part 131. . The foreign material inlet unit 135 is a foreign matter departure prevention suction unit 130 based on the vertical extension line of the foreign material drop guide unit 133 to prevent the foreign material falling from falling downward along the foreign material drop guide unit 133 ) Is further extended from the brush rotation space part 120.

On the other hand, the foreign matter escape prevention suction unit 130 is formed with a duct suction curved surface 137 so that foreign matter moving from the foreign matter transfer space 131 to the suction duct 103 is smoothly sucked into the suction duct 103.

The operation of the foreign material suction device for a vacuum cleaner according to an embodiment of the present invention configured as described above will be described.

As the robot cleaner operates, when the robot cleaner moves while the brush 101 is in contact with the ground, foreign matter on the ground is transferred through the foreign matter inlet 135 by rotation of the brush 101 and suction power of the fluid. (131).

At this time, the dust with small particles is directly sucked into the suction duct 103 through the foreign material transfer space part 131 by the fluid suction force, and the particles of large particles such as soil, grains of grain such as rice, sand, etc. Foreign matter is not transported to the suction duct 103 at one time by the suction power of the fluid, and is rotated several times in the interior of the foreign matter transfer space part 131 and transferred to the suction duct 103 for suction.

For example, foreign substances of large particles sucked to both sides of the brush housing 110 are gradually transferred to the central portion of the foreign matter transfer space portion 131 while being slidingly transferred along the sliding stepped portion 131c. In addition, the large particle foreign matter that has been transported along the sliding stepped portion 131c is not continuously rotated at the same point of the foreign matter transfer space portion 131 due to the inclination of the guide inclined surface 131a and the sliding stepped portion 131c. It is gradually transferred to the central part.

That is, the foreign matter of the large particle falling downward from the sliding stepped portion 131c by the weight is re-introduced from the foreign material introduction portion 135 into the inside of the foreign material transfer space portion 131 and the central portion along the sliding stepped portion 131c. Is transported back to. While repeating this process, the foreign substances that are gradually transferred to the inside are sucked into the suction duct 103 in the central portion connected to the suction duct 103.

Specifically, the foreign matter suction device 100 for a vacuum cleaner according to the present embodiment, the foreign matter sucked into the transport space 131 through the foreign material inlet 135, the guide slope (131a) and the transport slide member (131b) Due to the sliding vector and the reflection vector generated by the movement, the transport space 131 moves.

For example, the sliding vector is mainly implemented by the shape of the conveying space part 131, the guide inclined surface 131a, and the conveying slide member 131b, and according to the entering angle of the inflow, the sliding stepped part 131c It can also be implemented intermittently.

In addition, since the linearity of the entry vector of the foreign matter entering the transport space 131 by the brush 101 increases in proportion to the mass of the foreign matter, it is less affected by the slip vector.

In addition, the foreign matter that has entered the foreign matter transfer space 131 in a straight line collides with the sliding stepped portion 131c which is formed to be inclined at a specific angle, and the reflection vector is formed by the angle of the sliding stepped portion 131c to generate a suction duct. It moves linearly in the (103) direction.

For example, when a foreign material is uniformly introduced into the foreign material transfer space part 131 in a row, the foreign material that is the outermost of the foreign material transport space part 131 and the inflow object that is closest to the suction duct 103 of the foreign material transport space part 131 of the guide inclined surface 131a Due to the difference in widths W1 and W2, the time point of collision with the sliding stepped portion 131c is different. Accordingly, when foreign substances flowing into the foreign material transfer space 131 move to the suction duct 103, collision with each other is prevented.

At this time, the guide inclined surface 131a not only prevents mutual collision during movement when the foreign substance is moved, but also enables collective collision of the foreign substance in the vicinity of the suction duct 103.

In addition, when the relatively large influent reaches the front of the suction duct 103 due to the action of the reflection vector, it is preferable to move to the suction duct 103 through the kinetic energy exerted by the rotational force of the brush 101. Do.

However, since all foreign materials may not contact the duct suction curved surface 137, the kinetic energy by the brush 101 may be lost and then transferred by the fluid transfer energy by the air suction force.

That is, foreign matters moving inside the foreign matter transfer space part 131 are moved to the suction duct 103 by a sliding vector generated as it comes into contact with the duct suction curved surface 137, or to the kinetic energy due to the suction power of the fluid. By this, it moves in the direction of the suction duct 103.

The present invention has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art to which the art belongs can various modifications and equivalent other embodiments from this. Will understand.

Therefore, the true technical protection scope of the present invention should be defined by the claims.

100: vacuum cleaner foreign material suction device 101: brush
110: brush housing 111: upper cover
113: lower cover 120: brush rotation space
130: suction unit for preventing foreign substances from leaving 131: space for transferring foreign substances
131a: guide inclined surface 131b: transfer slide member
131c: sliding stepped portion 133: foreign material drop guide
135: foreign matter inlet

Claims (6)

A brush housing provided in the cleaner body; A brush rotation space portion formed in the brush housing so that the brush is rotatably coupled; And a foreign matter escape prevention suction part formed on one side of the brush rotation space part to prevent foreign matter sucked through the brush rotation space part from escaping to the outside of the brush housing, and connecting the brush rotation space part to the cleaner body. It includes,
The foreign matter escape prevention suction unit, the foreign matter transfer space portion in the central portion communicating with the suction duct of the cleaner body; And a foreign material drop guide part extending downwardly between the foreign material transport space part and the brush rotating space part to prevent foreign matter transported along the foreign material transport space part from falling out of the foreign material transport space part.
The foreign material transfer space portion, the guide slope that extends toward the fluid suction direction from both ends to slide the foreign matter; And
A foreign material inlet that is further extended to the brush rotating space part based on a vertical extension line of the foreign material drop guide part;
It characterized in that it comprises a foreign matter suction device for a vacuum cleaner.
delete According to claim 1,
The foreign matter escape prevention suction unit further includes a foreign matter transfer space unit having a suction port in which the central portion communicates with the suction duct of the cleaner body;
The foreign material conveying space part comprises a conveying slide member for gradually moving the foreign matter flowing into the fluid suction direction along a fluid suction direction.
The method of claim 3,
The conveying slide member, a foreign matter suction device for a vacuum cleaner, characterized in that a plurality of sliding stepped portions are spaced apart so that foreign matter sucked into the suction unit to prevent foreign matter from coming into contact and moving.
The method of claim 4,
The sliding stepped portion foreign matter suction device for a vacuum cleaner, characterized in that formed in a diagonal line with respect to the fluid suction direction of the foreign material.
delete

Images