WO2023169130A1

WO2023169130A1 - Floor brush and cleaning robot having same

Info

Publication number: WO2023169130A1
Application number: PCT/CN2023/075136
Authority: WO
Inventors: 冯勇兵; 袁广运; 翟晓东
Original assignee: 追觅创新科技(苏州)有限公司
Priority date: 2022-03-07
Filing date: 2023-02-09
Publication date: 2023-09-14
Also published as: CN217959932U

Abstract

A floor brush and a cleaning robot having same. The floor brush comprises: a floor brush body (100) provided with a floor brush cavity (110) with an opening facing a surface to be cleaned, a suction port (120) being provided on the cavity wall of the floor brush cavity (110); and a cyclone generation assembly (200) provided on the floor brush body (100) and located at the end of the floor brush cavity (110) and used for generating a cyclone capable of scraping said surface in the floor brush cavity (110), wherein when the suction port (120) is in a negative pressure state, external air enters the floor brush cavity (110) by means of the cyclone generation assembly (200), and flows in the vortex direction toward the suction port (120).

Description

Floor brush and cleaning robot having the same

This application claims priority to the Chinese patent application filed with the China Patent Office on March 7, 2022, with the application number 202220495398.0 and the application title "A floor brush and a cleaning robot having the same", the entire content of which is incorporated by reference in in this application.

Technical field

The present application belongs to the technical field of vacuum cleaners, and specifically relates to a floor brush and a cleaning robot having the same.

Background technique

Handheld vacuum cleaner is a form of household vacuum cleaner. It has the advantages of light appearance, easy operation and wide range of use, and is favored by consumers. The floor brush is a key component of a handheld vacuum cleaner. The traditional floor brush mainly has the following two forms: one is the direct suction type, which does not have a roller brush on the floor brush. When working, the garbage is directly sucked in through the suction port on the floor brush; this The advantages of the floor brush are: simple structure, light weight, and low cost. The disadvantage is that the dust removal efficiency is low. The floor brush can only absorb garbage near the suction port; the other is an electric roller brush type, which is driven by a motor. Or multiple roller brushes assist in sweeping up the dust and then inhaling it through the suction port; the advantages of this type of floor brush are: high dust removal efficiency, but the disadvantages are high cost, heavy weight, and easy to tangle hair.

Contents of the invention

Therefore, the technical problem to be solved by this application is to provide a floor brush with a simple structure and high dust removal efficiency and a cleaning robot with the same.

In order to solve the above technical problems, the present application provides a floor brush for cleaning the surface to be cleaned, including: a floor brush body, a floor brush cavity with an opening facing the surface to be cleaned, and a floor brush cavity with a floor brush on the cavity wall. Suction port; cyclone generating component, located on the floor brush body and located at the end of the floor brush cavity, used to generate a cyclone in the floor brush cavity that can scrape the surface to be cleaned; wherein, when the floor brush cavity is When the suction port is in a negative pressure state, external air enters through the cyclone generating component After the ground brush cavity is brushed, it flows toward the suction port in a vortex state.

Preferably, in the above-mentioned floor brush, the cyclone generating components are distributed on both sides of the suction port, and the two sides are the two sides in the forward direction of the floor brush; wherein, the cyclone generating component has the function of driving the airflow according to a predetermined direction. Assuming the direction of rotation, the cyclone generating components located on both sides of the suction port have opposite directions of rotation.

Preferably, in the above-mentioned floor brush, the cyclone formed by the cyclone generating component causes the airflow close to the surface to be cleaned to flow toward the suction port.

Preferably, in the above-mentioned floor brush, the floor brush cavity has a symmetrical structure, the floor brush cavity has a symmetrically distributed first cavity and a second cavity, and the suction port is symmetrical with respect to the symmetry plane of the floor brush cavity. ;

Wherein, the angle between the first cavity and the symmetry plane is a right angle, and the floor brush cavities are distributed in a straight line; or, the angle between the first cavity and the symmetry plane is With an acute angle, the ground brush cavities are distributed in a zigzag shape.

Preferably, in the above-mentioned floor brush, the floor brush cavity is a tapered cavity, and the flow section of the floor brush cavity gradually decreases in the direction from the cyclone generating component to the suction port.

Preferably, in the above-mentioned floor brush, the cyclone generating component is an impeller fixed on the floor brush body, and an air duct is formed on the impeller for connecting the floor brush cavity and the external environment;

Wherein, the air duct is configured to cause the air flow to rotate when the external air passes through the cyclone generating component.

Preferably, in the above-mentioned floor brush, the air channel is in a spiral shape.

Preferably, in the above-mentioned floor brush, the impeller is a part of the casing of the floor brush body.

Preferably, in the above-mentioned floor brush, a plurality of notches are recessed on the front edge surface of the opening of the floor brush cavity, and the notches are configured to partially increase the distance between the front edge surface of the bottom of the floor brush and the surface to be cleaned. spacing value between.

This application also provides a cleaning robot, including the floor brush as mentioned above.

The technical solution provided by this application has the following advantages:

In this application, when external air enters the floor brush chamber through the cyclone generating components on both sides, two cyclones will be generated in the floor brush chamber, located on the left and right sides of the suction port. While rotating in the brush chamber, it also moves along the floor brush chamber. The above two cyclones scrape the ground in the floor brush chamber, and the garbage volume entering the floor brush chamber area is sent to the vicinity of the suction port to be sucked out. At the same time, due to the two cyclones The overall flow is in the direction of the suction port, which can transport the dust in the corner areas on both sides of the floor brush chamber to the vicinity of the suction port. It has the ability to remove dust along the edges, thereby improving the dust removal effect and having the advantage of good dust removal effect;

Compared with traditional floor brushes, the floor brush of the present application uses cyclones to clean the floor. On the one hand, it can solve the problem of low dust removal efficiency of traditional direct suction floor brushes. On the other hand, it can replace the traditional electric roller brush and solve the problem of low dust removal efficiency. Floor brushes with electric roller brushes are prone to hair tangles. At the same time, the structure of the floor brush can be simplified, thereby reducing the cost and weight of the floor brush.

Description of the drawings

In order to more clearly explain the specific embodiments of the present application or the technical solutions in the prior art, the drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. It is obvious that the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is one of the structural schematic diagrams of the floor brush provided by this application;

Figure 2 is a schematic structural diagram of Figure 1 in the upward direction;

Figure 3 is a schematic cross-sectional structural diagram of Figure 1;

Figure 4 is the second structural schematic diagram of the floor brush provided by this application;

Detailed ways

The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other.

It should be noted that in the description and claims of this application and the above-mentioned drawings, the term "th "First", "second", etc. are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

In this application, unless otherwise specified, the directional words used such as "upper, lower, top, and bottom" usually refer to the direction shown in the drawings, or to the vertical or vertical position of the component itself. Vertically or in the direction of gravity; similarly, for ease of understanding and description, "inside and outside" refers to the inside and outside relative to the outline of each component itself, but the above directional terms are not used to limit this application.

Referring to Figures 1 to 4, the present application provides a floor brush for cleaning the surface to be cleaned. In an illustrative scenario, the floor brush can be a floor brush used as a handheld vacuum cleaner. For cleaning up garbage on the ground. It is worth noting that the floor brush described in the above example is used as a floor brush of a handheld vacuum cleaner, which is only one feasible application scenario of the floor brush. In other possible scenarios that cannot be explicitly excluded, the floor brush may also be used as a floor brush for a floor scrubber.

The following will mainly describe the scenario in which the floor brush is used as a floor brush of a handheld vacuum cleaner, and the surface to be cleaned is the ground. However, based on the above description, it can be seen that the protection scope of the embodiments of the present application is not limited thereby.

In this embodiment, the floor brush includes a floor brush body 100 and a cyclone generating assembly 200 provided on the floor brush body 100 . The floor brush body 100 is provided with a floor brush chamber 110 with an opening facing the surface to be cleaned. The cyclone generating assembly 200 is located at an end of the floor brush chamber 110 and is used to generate a cyclone in the floor brush chamber 110 that can scrape the surface to be cleaned.

Among them, a suction port 120 is provided on the wall of the floor brush chamber 110. The floor brush is also provided with a sewage inlet channel 121 connected with the floor brush cavity 110 through the above-mentioned suction port 120. The sewage inlet channel 121 passes through the above-mentioned suction port 120 to brush the floor brush. The garbage in the cavity 110 is sucked into the body (not shown in the figure).

Specifically, when the floor brush is working, a suction airflow is generated in the body connected to the floor brush, which can cause the suction port 120 to be in a negative pressure state. At this time, external air passes through the gap between the floor brush body 100 and the ground. The gap and cyclone generating assembly 200 enter the ground brush chamber 110 . When the external air passes through the cyclone generating assembly 200, the cyclone generating assembly 200 can force the air flow to rotate, so that the air flow flows in a vortex state toward the suction port 120, and finally enters the sewage inlet channel 121 through the suction port 120. The above-mentioned "vortex state" refers to the airflow in the clockwise direction or counterclockwise direction. A cyclone formed by rotating in a direction, similar to a tornado.

When the airflow moves toward the suction port 120 in a vortex state, the rotating airflow (cyclone) scrapes the ground and rolls the garbage in the area of the floor brush chamber 110 to the vicinity of the suction port 120 , so that the garbage is sucked out by the suction port 120 .

In this embodiment, the number of cyclone generating assemblies 200 is one pair, which are distributed on both sides of the suction port 120 . The above-mentioned “both sides” refer to both sides in the advancing direction of the floor brush. If the advancing direction of the floor brush is defined as the front, then the two sides of the advancing direction of the floor brush are the left and right sides of the floor brush. That is to say, the cyclone generating components 200 are distributed on the left and right sides of the suction port 120 .

Furthermore, the cyclone generating assembly 200 has a direction of rotation that drives the airflow to rotate in a preset direction. The above-mentioned "direction of rotation" can be understood as a clockwise direction or a counterclockwise direction. In this embodiment, the directions of rotation of the cyclone generating components 200 located on both sides of the suction port 120 are opposite. For example, when the direction of rotation of the cyclone generating component 200 located on the left side of the suction port 120 is clockwise, then the direction of rotation of the cyclone generating component 200 located on the left side of the suction port 120 is clockwise. The rotation direction of the generating component 200 is counterclockwise, and vice versa. That is to say, the cyclone generating components 200 located on both sides of the suction port 120 are distributed in a mirror image.

When external air enters the floor brush chamber 110 through the cyclone generating assemblies 200 on both sides, two cyclones will be generated in the floor brush chamber 110 , respectively located on the left and right sides of the suction port 120 . The above-mentioned cyclones rotate in the floor brush chamber 110 At the same time, it also moves along the floor brush cavity 110 . The cyclone located on the right side of the suction port 120 moves toward the suction port 120 from right to left, and the cyclone located on the left side of the suction port 120 moves toward the suction port 120 from left to right.

Specifically, the above two cyclones scrape the ground in the floor brush chamber 110, and the garbage volume entering the floor brush chamber 110 area is sent to the vicinity of the suction port 120 to be sucked out. At the same time, since the two cyclones generally flow in the direction of the suction port 120 , that is, flowing from the sides to the center direction, it can transport the dust in the corner areas on both sides of the floor brush cavity 110 to the vicinity of the suction port 120, and has the ability to remove dust along the edges, thereby improving the dust removal efficiency. High efficiency and good dust removal effect.

In this embodiment, the floor brush chamber 110 is a tapered chamber. In the direction from the cyclone generating assembly 200 to the suction port 120, the flow cross section of the floor brush chamber 110 gradually decreases, so that the cyclone close to the suction port 120 The speed is greater than the cyclone speed at the cyclone generating component 200, which is beneficial to the garbage being sucked out by the suction port, and improves the cleaning effect of the cyclone.

In order to facilitate the suction port 120 to suck out garbage, the cyclone formed by the cyclone generating assembly 200 causes the airflow close to the surface to be cleaned to flow toward the suction port 120 to facilitate the suction port 120 to suck out garbage. Anyway, if the cyclone formed by the cyclone generating assembly 200 cannot cause the airflow close to the surface to be cleaned to flow in the direction of the suction port 120, then the garbage on the ground will be blown away from the suction port 120 under the action of the cyclone, which is not conducive to the suction port 120. The garbage is sucked into the sewage inlet channel 121.

Regarding the cyclone generating assembly 200, in this embodiment, the cyclone generating assembly 200 is an impeller fixed on the floor brush body 100. Referring to FIG. 2 , the impeller includes a central shaft 210 and blades 220 equally spaced along the circumferential direction of the central shaft 210 on the outer circumferential wall of the central shaft 210 . Mounting holes are provided on the left and right end surfaces of the floor brush body 100, and the impeller is fixed in the mounting holes. One end of the blade 220 is fixed on the outer circumferential wall of the central shaft 210 , and the other end is fixed on the inner wall of the installation hole. An air duct is formed between adjacent blades 220 for communicating the brush chamber 110 with the external environment.

Specifically, the air duct is used to cause the airflow to rotate when the outside air passes through the cyclone generating assembly 200 , so that the airflow entering the ground brush chamber 110 flows toward the suction port 120 in a vortex state. Furthermore, the above-mentioned air duct is in a spiral shape, and the direction of rotation of the air duct is the direction of rotation of the cyclone generating assembly 200 . Since the cyclone generating assemblies 200 are distributed on the left and right sides of the suction port 120 in a mirror image manner, the cyclone generating assemblies 200 on both sides have opposite directions of rotation, for example, one side has a left-hand air duct and the other side has a right-hand air duct.

In this embodiment, the impeller can be fixed on the floor brush body 100 through fasteners (not shown in the figure), buckles, threaded connections, etc. The fasteners can be nuts, screws, etc. Of course, the impeller can also be integrally formed with the floor brush body 100. In this embodiment, the preferred impeller is a part of the shell of the floor brush body 100. This reduces the number of parts while maintaining an aesthetically pleasing appearance. The advantage of generosity.

Regarding the structure of the floor brush cavity 110, please continue to refer to Figure 2. In this embodiment, the floor brush cavity 110 has a symmetrical structure. The floor brush cavity 110 has a symmetrically distributed first cavity 111 and a second cavity 112. The suction port 120 is symmetrical about the symmetry plane X of the floor brush cavity 110 .

Among them, the structure of the floor brush cavity 110 has the following two situations: In the first situation, please refer to Figure 4, the angle between the first cavity 111 and the symmetry plane X is a right angle, and the floor brush cavity 110 is linear. Distribution; in the second case, please refer to Figures 1 to 3. The angle between the first cavity 111 and the symmetry plane X is an acute angle, and the floor brush cavity 110 is distributed in a broken line shape. It can be understood that since the floor brush cavity 110 is a symmetrical structure, in the above first case, the angle between the second cavity 112 and the symmetry plane X is also a right angle; in the above second case, the second cavity The angle between the body 112 and the symmetry plane X is also an acute angle.

In the above-mentioned first case of the local brush cavity 110, the floor brush body 100 is in the shape of a straight strip; in the above-mentioned second case of the local brush cavity 110, the floor brush body 100 is in the shape of a "Y". In this embodiment, the floor brush body 100 is preferably in a "Y" shape, which is more conducive to transporting garbage to the suction port 120 .

In this embodiment, please refer to FIG. 2 . The front edge surface of the opening of the floor brush cavity 110 is recessed upward to form a plurality of notches 130 . The notches 130 are configured to partially increase the front edge surface of the floor brush bottom. The spacing value between floors. The above-mentioned "partial" can be understood to mean that the above-mentioned gaps 130 are arranged at intervals. Therefore, garbage with larger particles can enter the ground brush chamber 110 through the above-mentioned gap 130 and be sucked out by the suction port 120 under the action of the cyclone.

Further, the bottom of the floor brush is also provided with a first roller 320 and a second roller 310. The first roller 320 and the second roller 310 are used to drive the floor brush to move on the ground. The first roller 320 is located behind the floor brush chamber 110 , and the second roller 310 is located in front of the floor brush chamber 110 . The second roller 310 is disposed on the front edge surface with the notch 130 recessed therein.

The number of the first roller 320 is one, and the number of the second roller 310 is two. The first roller 320 and the second roller 310 form a triangular support. Therefore, the floor brush has the advantage of smooth and reliable movement.

The application also provides a cleaning robot, which includes a body (in the figure (not shown) and floor brushing as described above. Please refer to FIG. 1 , the floor brush is provided with a connecting portion 400 , and the connecting portion 400 is used to connect the above-mentioned body and the floor brush.

Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, those of ordinary skill in the art can make other changes or modifications in different forms without making creative efforts, and all of them shall fall within the scope of protection of this application.

Claims

A floor brush used for cleaning the surface to be cleaned, which is characterized in that it includes:

The floor brush body is provided with a floor brush cavity with an opening facing the surface to be cleaned, and a suction port is provided on the wall of the floor brush cavity;

A cyclone generating component is provided on the floor brush body and located at the end of the floor brush cavity, and is used to generate a cyclone in the floor brush cavity that can scrape the surface to be cleaned;

Wherein, when the suction port is in a negative pressure state, external air enters the floor brush chamber through the cyclone generating component and flows in a vortex state toward the direction of the suction port.
The floor brush according to claim 1, characterized in that:

The cyclone generating components are distributed on both sides of the suction port, and the two sides are the two sides in the forward direction of the floor brush;

Wherein, the cyclone generating component has a direction of rotation that drives the airflow to rotate in a preset direction, and the directions of rotation of the cyclone generating components located on both sides of the suction port are opposite.
The floor brush according to claim 1, characterized in that:

The cyclone formed by the cyclone generating component causes the airflow close to the surface to be cleaned to flow toward the suction port.
The floor brush according to claim 1, characterized in that:

The floor brush cavity has a symmetrical structure, the floor brush cavity has a symmetrically distributed first cavity and a second cavity, and the suction port is symmetrical with respect to the symmetry plane X of the floor brush cavity;

Wherein, the angle between the first cavity and the symmetry plane is a right angle, and the floor brush cavities are distributed in a straight line; or,

The angle between the first cavity and the symmetry plane is an acute angle, and the floor brush cavities are distributed in a zigzag shape.
The floor brush according to claim 1, characterized in that:

The floor brush cavity is a tapered cavity, and the flow cross section of the floor brush cavity gradually decreases in the direction from the cyclone generating component to the suction port.
The floor brush according to any one of claims 1 to 5, characterized in that:

The cyclone generating component is an impeller fixed on the floor brush body, and an air duct is formed on the impeller for connecting the floor brush cavity and the external environment;

Wherein, the air duct is configured to cause the air flow to rotate when the external air passes through the cyclone generating component.
The floor brush according to claim 6, characterized in that:

The air duct is in a spiral shape.
The floor brush according to claim 6, characterized in that:

The impeller is part of the shell of the floor brush body.
The floor brush according to claim 1, characterized in that:

A plurality of notches are recessed on the front edge surface of the opening of the floor brush chamber, and the notches are configured to locally increase the distance between the front edge surface of the floor brush bottom and the surface to be cleaned.
A cleaning robot, characterized by comprising the floor brush according to any one of claims 1 to 9.