CN110236451A - Floor brush assemblies and vacuum cleaners - Google Patents

Abstract

The present application provides a ground brush assembly, the front end of the rolling brush cover of the ground brush assembly is set to extend toward the surface of the rolling brush and is close to and tangent to the structure, so that the front end of the rolling brush cover and the rolling brush The frictional resistance at the brush fitting is reduced, which in turn reduces the driving power requirements for the rolling brush; and since the front end of the rolling brush cover is tangent to the surface of the rolling brush, granular dirt will not stay on the rolling brush The front end of the rolling brush cover will not generate noise due to friction with the rolling brush, which improves the user experience; in a preferred embodiment, the front end of the rolling brush cover is also designed as a toothed structure, thereby The sewage can be dispersed under the condition of friction with the rolling brush, so that even if the sewage is scattered on the ground, it is difficult for the user to detect with the naked eye when using the vacuum cleaner. The floor brush assembly provided by the present application can significantly improve the use experience and cleaning effect of the floor brush assembly.

Description

Floor brush assemblies and vacuum cleaners

This application claims the priority of the Chinese patent application with the application number 201810191590.9 and the invention title "floor brush assembly and vacuum cleaner" submitted to the China Patent Office on March 08, 2018, the entire contents of which are incorporated by reference in this application.

technical field

The application relates to the technical field of cleaning equipment, in particular to a floor brush assembly; in addition, the application also provides a vacuum cleaner and a sweeping robot using the floor brush assembly.

Background technique

In order to improve the removal effect of stubborn stains on the ground, many floor brush assemblies used in vacuum cleaners are equipped with roller brush assemblies. Fig. 1 is a schematic longitudinal sectional view of a floor brush assembly 1 applied to a vacuum cleaner. As shown in Figure 1, the main part of the ground brush assembly 1 includes a rolling brush 1-1, a frame 1-2 and a rolling brush cover 1-3; part of the inner cavity of the frame 1-2 forms a suction air duct 1-4; The rolling brush cover 1-3 is fixedly connected with the frame 1-2 and arranged around the upper part of the rolling brush 1-1. The roller brush 1-1 rotates counterclockwise at a high speed according to the arrow shown in Figure 1, so that the dirt enters the suction port air duct 1-4 according to the dotted line shown in the figure.

In addition, a scraper assembly 1-5 is also arranged at the front end of the rolling brush cover 1-3; the scraper assembly 1-5 includes a scraper 1-5-1 and a scraper frame 1-5-2, and the scraper frame 1-5-2 is installed at the front end of the brush cover 1-3, and the scraper 1-5-1 is fixed by the scraper frame 1-5-2; the scraper 1-5-1 The extension direction is substantially perpendicular to the outer circumference of the roller brush 1-1, and the free end fits the roller brush 1-1 with interference (at the position in FIG. 1C ), and can squeeze the bristles on the surface of the roller brush 1-1.

When the roller brush 1-1 rotates, the scraper 1-5-1 can scrape off the dirt and water that have passed through the suction duct 1-4 but have not separated from the surface of the roller brush 1-1, and remain on the scraper. In the sealing area formed by the assembly 1-5, the rolling brush 1-1 and the housing. At the same time, because the scraper 1-5-1 is made of soft rubber and has a certain interference design with the roller brush 1-1, when the roller brush 1-1 rotates at high speed, the soft bristles on the brush will not stop at high speed and contact with the scraper 1. -5-1 Perform similar actions of slapping or rubbing, and the sewage will become a very fine water mist scattered on the ground through the slapping or rubbing of the rolling brush 1-1, and the other part will reattach to the rolling brush. Brush the fluff on the surface of 1-1; in this way, the sewage will not drip on the ground in the form of large water droplets. Even if some of the sewage is scattered on the ground, it will be scattered on the ground in the form of fine water mist, which cannot be clearly detected by the user when using it. , this design can significantly weaken the marks left by the roller brush passing through the ground.

However, there are also obvious disadvantages in the floor brush assembly used in the above-mentioned prior art.

First of all, because the scraper 1-5-1 is basically perpendicular to the outer circumference of the roller brush 1-1 and has an interference fit with the roller brush 1-1, the frictional resistance at the joint between the scraper 1-5-1 and the roller brush 1-1 Larger, cause obvious power loss, need bigger power to drive roller brush 1-1 high-speed rotation. For some small and low-power vacuum cleaners or sweeping robots, especially the above-mentioned devices driven by batteries, this power loss is even unacceptable.

Secondly, the bristles of the roller brush 1-1 enter the air duct 1-4 of the suction port but the granular stains that do not break away from the bristles will be brought to the area A on the upper side of the scraper 1-5-1 by the brush. Due to the beating of the bristles, the granular stains constantly jump and collide with the scraper assembly 1-5 and the roller brush shell to generate noise; this obviously reduces the experience of using the device.

Finally, after the accumulated water scraped from the roller brush 1-1 by the scraper 1-5-1 stays in the A area, it may still be left from the gap between the scraper 1-5-1 and the roller brush 1-1. In area B of the lower surface of the scraping strip 1-5-1, water droplets are finally formed and drop to the bottom surface, which affects the cleaning effect.

Contents of the invention

This application provides a floor brush assembly to solve the problem of high friction resistance at the joint between the scraper and the roller brush in the prior art, which requires a large power to drive the roller brush to rotate at a high speed, and to solve the problem that the granular dirt jumps and collides with the scraper assembly and the noise generated by the brush shell; the preferred embodiment of the present application can also effectively solve the problem of water droplets forming on the scraper.

The application provides a ground brush assembly, including a rolling brush, a rolling brush cover arranged around the top of the rolling brush, and a suction port air duct that cooperates with the rolling brush to suck dirt; the front end of the rolling brush cover is set to The direction of the rolling brush surface extends close to and is tangent to.

Optionally, at the tangent position, the front end of the rolling brush cover has an interference with the surface of the rolling brush.

Optionally, the front end of the rolling brush cover adopts a thin rib structure.

Optionally, the position of the front end surface of the rolling brush cover is a tooth-shaped combing part.

Optionally, it also includes: a ground brush frame, which is arranged at the rear end of the rolling brush and fixed on the body of the equipment for installing the ground brush assembly, and the ground brush frame is provided with a convex part of the surface.

Optionally, the method includes: the protrusion presses against the roller brush to form an interference with the circumferential surface of the roller brush.

Optionally, it also includes: a rolling brush bracket, the rolling brush bracket is arranged on the body of the equipment for installing the floor brush assembly; the front end and the rear end of the rolling brush cover are respectively connected with the rolling brush bracket, so as to It is fixed on the roller brush bracket.

The present application also provides a vacuum cleaner, including: a ground brush assembly, the ground brush assembly including a rolling brush, a rolling brush cover arranged around the top of the rolling brush, and a suction air duct that cooperates with the rolling brush to suck dirt; The front end of the rolling brush cover is arranged to extend close to and tangent to the surface of the rolling brush.

The present application also provides a sweeping robot, including: a ground brush assembly, the ground brush assembly includes a rolling brush, a rolling brush cover arranged around the top of the rolling brush, and a suction air duct that cooperates with the rolling brush to suck dirt ; The front end of the rolling brush cover is set to extend close to and tangent to the surface of the rolling brush.

Compared with the prior art, the present application has the following advantages: a ground brush assembly provided by the present application, the front end of the rolling brush cover of the ground brush assembly is set to extend toward the surface of the rolling brush and is close to and tangential to structure, so that the frictional resistance between the front end of the rolling brush cover and the rolling brush is reduced, thereby reducing the driving power demand for the rolling brush; and due to the front end of the rolling brush cover and the rolling brush The surface is tangent, so the granular dirt will not stay on the front end of the rolling brush cover, and then no noise will be generated due to friction with the rolling brush, which improves the user experience; in a preferred embodiment, the The front end of the rolling brush cover is designed as a toothed structure, so that the sewage can be dispersed under the condition of friction with the rolling brush, so that even if the sewage is scattered on the ground, it is difficult for the user to detect it with the naked eye when using the vacuum cleaner . The floor brush assembly provided by the present application can significantly improve the use experience and cleaning effect of the floor brush assembly.

Description of drawings

Fig. 1 is the structural representation of the ground brush assembly that prior art provides;

Fig. 2 is a schematic structural view of the ground brush assembly provided by the embodiment of the present application;

Fig. 3 is a schematic structural view of thin ribs in the floor brush assembly provided by the embodiment of the present application;

Fig. 4 is a schematic structural diagram of a vacuum cleaner provided by an embodiment of the present application;

Fig. 5 is a schematic diagram of an explosion in a partial area of the vacuum cleaner provided by the embodiment of the present application.

Among them, the name of the background technology is marked: floor brush assembly 1, roller brush 1-1, frame 1-2, roller brush cover 1-3, suction port air duct 1-4, scraper assembly 1-5, scraper 1-5 -1, scraping rack 1-5-2;

In the embodiment of the present application, the names are marked: floor brush assembly 2, rolling brush 3, rolling brush cover 4, suction air duct 5, thin rib structure 6, toothed combing part 6-1, floor brush frame 7, raised part 7 -1, floor brush 8, roller brush bracket 9;

Detailed ways

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

The present application provides a ground brush assembly, and FIG. 2 is a schematic structural diagram of the ground brush assembly provided by the present application; the ground brush assembly is used in equipment such as vacuum cleaners or sweeping robots.

As shown in Figure 2; this application provides a ground brush assembly 2, including: a rolling brush 3, a rolling brush cover 4, a suction air duct 5, a thin tendon structure 6, a toothed combing part 6-1, and a ground brush frame 7 (ground brush floor 8), raised portion 7-1, rolling brush support 9.

The rolling brush 3 is the main component of the ground brush assembly 2, and the rolling of the rolling brush 3 on the surface to be cleaned can sweep up the dirt on the surface to be cleaned, and the dirt (sewage, granular Dirt) can be brought into the vicinity of the suction duct 5 by the high-speed rotation of the roller brush 3, and enter the suction duct 5 by the centrifugal force of the high-speed rotation of the roller brush 3 or the vacuum suction from the suction duct 5, and then be sucked into the vacuum cleaner Or in the garbage collection box inside the sweeping robot to clean the surface to be cleaned.

This application is mainly an invention created to improve the defects of the anti-drip scraper assembly 1-5 at the front end of the roller brush 3 in the prior art. In the embodiment of the present application, as shown in FIG. 2 , a roller brush bracket 9 is provided on the body of the equipment using the ground brush assembly 2; The upper part of the rolling brush 3 is arranged, so the rolling brush cover 4 can cover the rolling brush 3 on the end face of half an arc, and the front end of the rolling brush cover 4 and the rear end of the rolling brush cover 4 are respectively It is connected to the brush bracket 9 so that the brush cover 4 can be properly fixed. Wherein, the front end of the rolling brush cover 4 is set to extend toward the surface of the rolling brush 3 and be tangent; The sheet structure 6 and the rest of the rolling brush cover 4 can be designed as an integrated structure; or, the thin rib sheet structure 6 as the front end of the rolling brush cover 4 can be made separately, and the thin ribs can be connected by screws or buckles. The sheet structure 6 is assembled at the front end of the brush cover 4; or the thin rib structure 6 is fixed at the front end of the brush cover 4 by welding or super glue. At the tangent position between the rolling brush cover and the surface of the rolling brush, the front end of the rolling brush cover 4 has an interference with the surface of the rolling brush 3; the interference can be set less, so that The resistance of the rolling brush 3 in contact with the front end of the rolling brush cover 4 is reduced; in a preferred embodiment, the tooth-shaped combing portion 6-1 (at the position of Fig. 2E, it can correspond to the thin rib structure 6 described above, and be understood as the end of the thin rib structure 6), the reason why the front end face position of the rolling brush cover 4 is designed as a tooth-like feature is to Better combined with the vibration generated when the rolling brush 3 is in contact with it, through the interaction between the rolling brush 3 and the toothed combing portion 6-1, the water droplets trapped in the combing portion 6-1 can be broken up .

In the embodiment of the present application, in order to prevent sewage or particles from being brought to the front end of the rolling brush cover 4 by the high-speed rotating brush 3 as much as possible, a ground brush frame 7 is provided at the rear end of the rolling brush 3 , the ground brush frame 7 is provided with a protrusion 7-1 pressed against the circumferential surface of the roller brush 3, and the protrusion 7-1 is pressed against the roller brush 3 to form a The amount of interference on the circumference. It should be noted that the ground brush frame 7 is arranged on the body of the equipment using the ground brush assembly 2, as shown in FIG. The draw-in slots are clamped to realize the fixing of the ground brush frame 7. And in an optional implementation of the present application, the ground brush frame 7 can be designed as an integral structure with the ground brush floor 8 of the ground brush assembly 2, or the ground brush frame 7 and the ground brush assembly 2 can be designed as an integrated structure. Ground brush floor 8 is fixedly connected.

In order to better explain the floor brush assembly described in the present application, the working principle of the floor brush assembly is described below through specific application scenarios.

Please combine with Fig. 2 and Fig. 3 again, when the ground brush assembly 2 is working, the roller brush 3 rotates in the direction of the arrow as shown in the figure, and a part of dirt (sewage, granular dirt) can pass through the roller The high-speed rotation of the brush 3 is brought into the vicinity of the suction duct 5, and the centrifugal force of the high-speed rotation of the roller brush 3 or the vacuum suction from the suction duct 5 enters the suction duct 5 and then is sucked into the garbage inside the vacuum cleaner or the sweeping robot. In the collection box, the remaining part of the dirt will move along the surface of the rotating brush 3 at high speed; 1 contact, based on the formation of a small interference area G between the raised portion 7-1 and the outer circle of the roller brush 3, the sewage or particles on the surface of the roller brush 3 can be scraped off to prevent dirt The rolling brush 3 rotated at high speed is brought to the front end of the rolling brush 3 . It can be understood that the interference area G of the raised portion 7-1 cannot completely block the remaining dirt at the rear end of the roller brush 3, so there will still be a certain amount of dirt along with the The high-speed rotation of the rolling brush 3 is brought to the front end of the rolling brush 3, in the embodiment of the present application, specifically the inner D area of the thin rib structure 6 at the front end of the rolling brush cover 4; Taking sewage as an example, since the thin rib structure 6 (can be specific to the end E of the thin rib structure 6) is designed as (saw) toothed as shown in Figure 3, the sewage in the D area will flow toward the described thin rib structure 6. The serrations of the end E of the thin rib structure 6 converge, and because the end E of the thin rib structure 6 is designed to interfere with the roller brush 3, when the roller brush 3 rotates at a high speed, the roller The fluff on the surface of the brush 3 will constantly rub against the sawtooth of the thin rib structure 6, and due to the high frequency of friction, it is equivalent to the surface fluff of the roller brush 3 constantly rubbing against the thin rib structure 6. The sawtooth of 6 vibrates and strikes, so that the sewage collected into the inner D area of the thin rib structure 6 is broken up to form a finer mist-like water mist; at the same time, because the thin rib structure 6 is Thin and the outer surface F also has a larger inclination angle with the ground, instead of forming a platform (in the prior art) that can condense into water droplets parallel to the ground, so the sewage will not condense on the outer surface F of the thin rib structure 6 Then, a part of the scattered water mist is reabsorbed by the fluff on the surface of the roller brush 3, and the other part will be scattered on the ground, but because the sewage is broken into fine Even if the foggy water mist is scattered on the ground, it is difficult for the user to detect with the naked eye when using it, thereby achieving the effect of improving the scraping strip at the front end of the rolling brush 3.

Taking the dirt as an example of granular dirt again, even if there is still a part of the granular dirt brought to the inner D area of the thin rib structure 6 by the high-speed rotation of the roller brush 3, compared with the prior art scraper Components and roller brush 3 are vertically designed, because the inner side D area design of described thin rib sheet structure 6 is roughly tangent to the outer diameter of the circumference along the rotation direction of described roller brush 3; when described roller brush 3 rotates at a high speed, the The inner D area of the thin rib sheet structure 6 will not retain granular dirt, and the fluff on the surface of the roller brush 3 keeps rubbing the inner D area of the thin rib sheet structure 6, so that the dirt is brought to the The granular dirt in the inner D area of the thin rib structure 6 is brought to the ground again by the fluff of the roller brush 3 rotating at high speed, so that it is sucked into the air duct 5 of the suction port again, thereby improving the roller brush 3. Brush 3 front-end scraper assembly experience.

The embodiment of the present application also provides a vacuum cleaner 10, please refer to FIG. 4 and FIG. The provided rolling brush cover 4, and the suction port air duct 5 that cooperates with the rolling brush 3 to suck the dirt; the front end of the rolling brush cover 4 is set to extend toward the surface of the rolling brush 3 and be tangent; The air inlet duct 5 communicates with the air inlet of the suction device.

The vacuum cleaner 10 also includes: a solution bucket assembly 11 (that is, the vacuum cleaner 10 can be a wet vacuum cleaner 10 with a solution bucket assembly 11 installed); a handle assembly 12 connected to one end of the solution bucket assembly 11, and the other end is connected to an organism Assembly 13, the body assembly 13 is connected with the dust bucket assembly 14 (dirt storage location); the rolling brush 3 is protected by the rolling brush assembly 15.

The embodiment of the present application also provides a sweeping robot (not shown), including: a ground brush assembly, the ground brush assembly includes a rolling brush and a rolling brush cover arranged around the top of the rolling brush, and cooperates with the rolling brush to remove dirt The suction port air channel for the suction of objects; the front end of the rolling brush cover is set to extend close to and tangent to the surface of the rolling brush.

The sweeping robot also includes: a solution barrel assembly (that is, the sweeping robot can be a wet sweeping robot with a solution barrel assembly; a handle assembly connected to one end of the solution barrel assembly, and the other end is connected to an organism assembly, and the body The assembly is connected with the dust bucket assembly (dirt storage location); the rolling brush is protected by the rolling brush assembly.

In the vacuum cleaner or the sweeping robot, the front end of the rolling brush cover of the floor brush assembly is arranged to extend toward the surface of the rolling brush and approach and be tangent to the structure, so that the front end of the rolling brush cover and the rolling brush cover The frictional resistance at the brush fitting is reduced, which in turn reduces the driving power requirements for the rolling brush; and since the front end of the rolling brush cover is tangent to the surface of the rolling brush, granular dirt will not stay on the rolling brush The front end of the rolling brush cover will not generate noise due to friction with the rolling brush, which improves the user experience; and because the front end of the rolling brush cover is designed as a toothed structure, it will Under the circumstances, the sewage can be broken up, and even if it is scattered on the ground, it is difficult for the user to detect with the naked eye when using the vacuum cleaner, thereby achieving the effect of improving the front end of the rolling brush.

Although the present application is disclosed as above with preferred embodiments, it is not used to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the present application The scope of protection should be based on the scope defined by the claims of this application.

Claims (9)

1. a kind of ground brush assemblies, the round brush lid being arranged including round brush and above the round brush, and the cooperation round brush will be dirty The suction inlet air duct of object sucking；It is characterized in that, the front end of the round brush lid is set as extending close to the round brush surface direction And it is tangent.

2. ground according to claim 1 brush assemblies, which is characterized in that including in tangency location, the front end of the round brush lid With the magnitude of interference with the round brush surface.

3. ground according to claim 1 brush assemblies, which is characterized in that the front end of the round brush lid uses thin muscle chip architecture.

4. ground according to claim 3 brush assemblies, which is characterized in that the front end surface position of the round brush lid is dentation Combing portion.

5. ground according to claim 1 brush assemblies, which is characterized in that further include: scrubbing brush rack is set to the round brush It rear end and is fixed on the body of equipment of installation described ground brush assemblies, is provided in the scrubbing brush rack and is pressed against the round brush and justifies The lug boss of circumferential surface.

6. ground according to claim 5 brush assemblies characterized by comprising the lug boss is pressed against the round brush and is formed With the magnitude of interference of the round brush periphery.

7. ground according to claim 1 brush assemblies, which is characterized in that further include: round brush bracket, the round brush bracket setting In on the body of the equipment of installation described ground brush assemblies；The front-end and back-end of the round brush lid connect with the round brush bracket respectively It connects, to be fixed on the round brush bracket.

8. a kind of dust catcher characterized by comprising ground brush assemblies, described ground brush assemblies include round brush and on the round brush The round brush lid being just arranged, and the suction inlet air duct that the cooperation round brush sucks dirt；The front end of the round brush lid be set as to The round brush surface direction extends close to and tangent.

9. a kind of sweeping robot characterized by comprising ground brush assemblies, described ground brush assemblies include round brush and around the rolling The round brush lid that the side of painting is arranged, and the suction inlet air duct that the cooperation round brush sucks dirt；The front end of the round brush lid is arranged To be extended close to the round brush surface direction and tangent.