CN215687534U - Cleaning head and surface cleaning device - Google Patents

Abstract

The utility model discloses a cleaning head and a surface cleaning device. The first rolling brush is arranged in the first cavity and rotates around the first rotating axis, and the first rolling brush is configured to clean the surface to be cleaned after wet cleaning again. The scraping strip is in interference fit with the surface of the first rolling brush and is used for scraping at least part of dirt attached to the first rolling brush so as to prevent the dirt from entering the first chamber. Adopt this kind of structure, can effectively wipe dry the processing to the water stain on ground, prevent simultaneously to miss and can not obtain timely processing after the dirty entering first cavity of treating clean surface.

Description

Cleaning head and surface cleaning device

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning head and a surface cleaning device.

Background

With the improvement of living standard, people have higher and higher requirements on cleaning the ground. Conventional vacuum cleaners can perform only dry cleaning, and even though some vacuum cleaners may have a water absorbing function, their cleaning ability for the floor is limited, and thus wet cleaning apparatuses are increasingly gaining favor of users. The wet cleaning equipment sprays liquid on the ground or cleans a test piece, and the surface to be cleaned is cleaned by cleaning the test piece, so that the surface can be effectively cleaned.

Wet cleaning devices also have problems, such as some water stains remaining on the cleaned surface and some dirt remaining on the surface due to the suction force not being as great as that of the cleaner.

SUMMERY OF THE UTILITY MODEL

In view of the disadvantages in the prior art, the utility model provides a cleaning head and a surface cleaning device, which can effectively further clean the ground after wet cleaning.

In one aspect, the utility model provides a cleaner head comprising

A housing defining a first chamber;

a first roll brush disposed in the first chamber and rotating about a first rotation axis, the first roll brush being configured to clean the surface to be cleaned, which has been subjected to wet cleaning, again;

a scraping bar in interference fit with a surface of the first rolling brush for scraping off at least part of the dirt attached to the first rolling brush to prevent the at least part of the dirt from entering the first chamber.

In one embodiment, the cleaning head further comprises a cleaning member for wet cleaning of the cleaning surface, the cleaning member being disposed in front of the first roll brush in an advancing direction of the cleaning head.

In one embodiment, the wiper strip is configured to hold at least part of the dirt not cleaned off by the cleaning member between the cleaning member and the first roll brush.

In one embodiment, the first roller brush is moved in a clockwise direction during operation, the wiper strip is arranged in front of the first axis of rotation in the forward direction of the cleaning head, and the wiper strip is vertically lower than the first axis of rotation.

In one embodiment, the cleaning member includes a cleaning roller disposed in a second chamber defined by the housing and rotating about a second rotation axis, the cleaning roller and the first roller are disposed at both ends of the housing in the moving direction of the cleaning head, respectively, and the cleaning roller and the first roller move in opposite directions.

In one embodiment, the cleaning head further comprises a first recovery tank disposed in the housing, the second chamber being in communication with the first recovery tank, the cleaning roller propelling at least some of the dirt on the surface to be cleaned into the first recovery tank.

In one embodiment, the wiper strip is disposed on a bottom wall of the housing.

In one embodiment, the wiper strip and the housing are integrally formed.

In another aspect, the utility model provides a surface cleaning apparatus comprising

A main unit and a cleaning head as described in any of the above embodiments connected to the main unit,

wherein the main body or the cleaning head is provided with a suction source for generating a suction airflow flowing along a suction duct, the suction duct being in fluid communication with a suction nozzle provided on the cleaning head.

In one embodiment, the surface cleaning apparatus further comprises a cleaning liquid supply system for spraying the cleaning liquid onto the surface to be cleaned in front of the cleaning head or/and the cleaning roller.

The utility model provides a cleaning head and a surface cleaning device, the cleaning head of the surface cleaning device comprises a shell which is limited in a first chamber. The first rolling brush is arranged in the first cavity and rotates around the first rotating axis, and the first rolling brush is configured to clean the surface to be cleaned after wet cleaning again. The scraping strip is in interference fit with the surface of the first rolling brush and is used for scraping at least part of dirt attached to the first rolling brush so as to prevent the dirt from entering the first chamber. Adopt this kind of structure, can effectively wipe dry the processing to the water stain on ground, prevent simultaneously to miss and can not obtain timely processing after the dirty entering first cavity of treating clean surface.

Drawings

FIG. 1 is a schematic view of a cleaning head according to an embodiment of the present invention;

FIG. 2 is a schematic view of the cleaning head of FIG. 1 with the cover plate removed;

FIG. 3 is a schematic structural view of a housing of the cleaning head according to an embodiment of the present invention;

FIG. 4 is a schematic view of the cleaning head of FIG. 1 at another angle;

FIG. 5 is a schematic cross-sectional view of the cleaning head of FIG. 1 taken along direction B;

FIG. 6 is a partial schematic view of a cleaning head in accordance with an embodiment of the utility model;

FIG. 7 is a schematic view of an embodiment of a cleaning head traveling in a forward direction;

FIG. 8 is another schematic view of the cleaning head traveling in a forward direction in one embodiment;

FIG. 9 is a schematic view of one embodiment of a cleaning head traveling in a backward direction;

FIG. 10 is another schematic view of the cleaning head traveling in a reverse direction in one embodiment;

FIG. 11 is a schematic view of the structure of the surface cleaning apparatus in one embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a cleaning head according to an embodiment of the utility model. Fig. 2 is a schematic structural view of the cleaning head shown in fig. 1 with the cover plate removed. Fig. 3 is a schematic structural diagram of a housing of a cleaning head according to an embodiment of the utility model. Fig. 4 is a schematic view of the cleaning head shown in fig. 1 at another angle. As shown in the figure, the cleaning head 2 includes a housing 23 adapted to move on the surface to be cleaned, the housing 23 defines a space for mounting various components, and in order to facilitate the movement of the housing 23, a bottom wall 231 of the housing 23 is provided with a roller 236 (refer to fig. 4), and the roller 236 may be a one-way wheel, a universal wheel, or a combination of two kinds of wheels. The housing 23 is provided with cleaning members 21 configured to clean a surface to be cleaned. The cleaning member 21 may be a cleaning structure having a cleaning function, such as the suction port 24, the horizontal wiper 222, or a roll brush. When the cleaning member 21 is the suction port 24, the suction port 24 may be formed on the housing 23, may be separated from the housing 23, and may be moved relative to the housing 23 by sucking the dirt into the recovery tank through the suction port 24. When the cleaning member 21 is a horizontal wiper 222, the horizontal wiper 222 may be a reciprocating motion, a rotating motion, or other forms that can be realized, and is not limited herein. Referring to fig. 2 and 3, when the wiper 222 is a roller brush, the cleaning roller brush may be mounted in the second chamber 211 defined by the housing 23 and rotate about the second rotation axis 212. The cleaning roller brush can be directly or indirectly driven by a driving motor, and in a specific embodiment, when the cleaning member 21 is a roller brush, the cleaning roller brush can be driven by a motor through a transmission structure, and the specific transmission structure is not described in detail herein. In other embodiments, different wipers 222 may be combined, for example, the cleaning head 2 may have both suction ports 24, and horizontal wipers 222 or a roller brush may be provided, which are not limited in the manner of combination.

For wet cleaning, the cleaning head 2 is typically provided with a nozzle (not shown) which is in communication with a cleaning liquid supply system, which is a relatively common supply system in cleaning devices and which is not described in detail herein, the cleaning liquid supply system may be provided on the cleaning head 2, or may be provided elsewhere in the device, and is not limited herein. The nozzles can either spray onto the cleaning members 21, towards the surface to be cleaned, or both towards the surface to be cleaned and the cleaning members 21.

Referring to fig. 5 and 6, fig. 5 is a schematic cross-sectional view of the cleaning head shown in fig. 1 in the direction B. Figure 6 is a partial schematic view of a cleaning head according to one embodiment of the utility model. Referring also to fig. 1-4, to ensure that the wet cleaned floor is drier and cleaner, the cleaning head 2 is further provided with a first roller brush 22 disposed within a first chamber 221 defined by the housing 23 and rotating about a first axis of rotation 223. The first rolling brush 22 can be directly or indirectly driven to rotate by a motor, and the first rolling brush 22 can be driven to rotate by the movement of the roller 236 or other structures when the cleaning head 2 moves on the surface. Of course, it is understood that when the cleaning member 21 is a cleaning roller brush, the cleaning roller brush and the first roller brush 22 can be driven by the same motor through a transmission structure, and the transmission structure can be a common mechanical structure, and will not be described in detail herein. The cleaning roller brush is disposed in the second chamber 211 in front of the first roller brush 22 in the traveling direction of the cleaning head 2. The cleaning roller brush and the first roller brush 22 may be rotated in the same direction or in opposite directions. In the embodiment shown in the drawings, the cleaning roller and the first roller 22 are rotated in opposite directions, and in normal operation, the cleaning roller is rotated in a counterclockwise direction and the first roller 22 is rotated in a clockwise direction. The surface of the first roll brush 22 is provided with a wiper 222, and the wiper 222 is used to clean the surface to be cleaned by the cleaning member 21 again. In this embodiment, the wipe 222 is a fluff structure having water absorbing properties, although the wipe 222 may also be a sponge structure or a sponge-like structure. In this way, water stains remaining on the floor can be effectively absorbed onto the wiper 222, and the floor can be kept dry as much as possible. During cleaning, some residual soil may be left behind on the surface to be cleaned due to suction or some other reason. This residual dirt is carried up by the first roller brush 22 and as the roller brush rotates, some of the possible dirt becomes trapped in the chamber. Therefore, a scraper bar 224 is provided around the first roller brush 22, and referring to fig. 5 and 6, specifically, the scraper bar 224 is detachably mounted on the housing 23, and a stopper is provided at an upper end of the scraper bar 224 to prevent the scraper bar 224 from being bent. Of course, the scraping strip 224 may also be integrally formed with the housing 23, the scraping strip 224 being in interference fit with the wiper 222, wherein the scraping strip 224 is configured to scrape off at least some of the dirt (including solid particles and some of the liquid adsorbed onto the wiper) attached to the wiper 222 to prevent at least some of the dirt from entering the first chamber 221, while maintaining the cleanliness of the wiper specimen. Referring to fig. 7-8, fig. 7 is a schematic view of an embodiment of a cleaning head traveling in a forward direction. Fig. 7 shows the cleaning head working forward, the scraping bar scraping off the dirt on the first rolling brush. Figure 8 is another illustration of the cleaning head traveling in the forward direction in one embodiment. Figure 8 shows the dirt carried to position a of the surface to be cleaned so that it moves with the cleaning head without being missed. Specifically, the first rolling brush 22 rotates clockwise, the scraping bar 224 is used to scrape off at least part of the dirt attached to the surface of the first rolling brush 22, and at least part of the dirt falls toward the ground after being scraped off, and during this falling process, the rolling brush advances slowly, the dirt falls onto the ground, and the rolling brush advances quickly, and this part of the dirt may be attached to the surface of the first rolling brush 22 again, so that the cleaning head 2 pushes the missing dirt forward without being stuck into the chamber during the advancing process, in other words, the dirt which is not cleaned by the cleaning member 21 is always kept between the cleaning member 21 and the first rolling brush 22. Referring to fig. 9-10, fig. 9 is a schematic view of an embodiment of a cleaning head walking in a backward direction. What is shown in figure 9 is that as the cleaner head moves backwards, dirt scraped off by the wiper strip is left behind on the floor and does not move backwards with the cleaner head. Figure 10 is another illustration of the cleaning head walking in a reverse direction in one embodiment. Figure 10 shows the dirt left on the floor as it passes through zone a as the cleaning head moves backwards to be returned to the recovery tank. A scraping plate is generally arranged behind the cleaning rolling brush and used for shoveling dirt in the advancing process and recovering the dirt in cooperation with the cleaning rolling brush. In the process of backward movement of the cleaning head, the scraping plate can scrape off the dirt behind to influence the cleaning function, so that the scraping plate can be upwards lifted or retracted in the process of backward movement of the cleaning head so as to facilitate the cleaning roller brush to recover the dirt behind.

In a specific embodiment, in order to prevent the stains, which are separated from the first roller brush 22, from being left on the surface to be cleaned, the first roller brush 22 is moved in a clockwise direction during operation, and the wiper strip 224 is disposed in front of the first rotation axis 223 in the forward direction, and the wiper strip 224 is lower than the first rotation axis 223 in the vertical direction. With this arrangement, the scraper bar 224 is spaced from the floor surface by a small distance, and the scraped off dirt falls quickly to the floor surface, is rewound by the first rolling brush 22, is scraped off again by passing through the scraper bar 224, and repeats the action of falling-rolling-scraping to hold the dirt, which is not cleaned off by the cleaning member 21, at least partially between the cleaning member 21 and the first rolling brush 22. Carrying the dirt forward while ensuring that the dirt does not get stuck in the first chamber 221.

Referring to fig. 6, the cleaning head 2 further includes a cover plate 225, the cover plate 225 and the housing 23 together form a first chamber 221, the first rolling brush 22 can be taken out from the first chamber after the cover plate 225 is removed, and a downward protrusion 226 is disposed on a side of the cover plate 225 facing the first rolling brush 22, the downward protrusion 226 is in interference fit with the wiper 222 of the first rolling brush 22, so as to scrape off the dirt remained on the wiper 222 and keep the dirt in the first chamber.

In one embodiment, the cleaning head 2 may be provided with a first recovery tank for recovering the dirt, the second chamber 211 being in communication with the first recovery tank of the cleaning head 2, the cleaning roller propelling at least part of the dirt on the surface to be cleaned into the first recovery tank. Further, a structure such as a scraper may be further provided around the cleaning roller brush, and the dirt attached to the cleaning roller brush may be scraped into the first recovery tank.

In another embodiment, the cleaner head 2 may also be provided with a vacuum assembly for generating a suction airflow to recycle the dirt to the recovery tank, the vacuum assembly typically comprising a motor and a fan, which communicate with a suction nozzle on the cleaner head 2 via a suction conduit.

The cleaning head 2 can be connected to a common handle and a handheld dust collector, and can also be applied to cleaning products such as a vertical dust collector, a bedroom dust collector or a sweeping robot, and the like, without limitation.

Referring to fig. 11, fig. 11 is a schematic view of a surface cleaning apparatus according to an embodiment. The surface cleaning apparatus 100 shown in figure 11 comprises a main unit 1 and a cleaning head 2 connected to the main unit 1, the cleaning head 2 being a cleaning head 2 as described in any of the embodiments above, the main unit 1 comprising a vacuum assembly (suction source) for generating a suction air flow along a suction duct comprising a motor and a fan, the suction duct being in fluid communication with a suction nozzle provided on the cleaning head 2. In this embodiment, a recovery tank may be provided in the suction duct, into which the dirt is recovered by the suction airflow through the suction nozzle.

With continuing reference to figure 11 and with further reference to the figures, the present invention discloses a surface cleaning apparatus 100 comprising a cleaning head 2 adapted for movement across a floor surface and a main unit 1 pivotally connected to the cleaning head 2, the main unit 1 being provided with a handle for controlling the direction of travel of the cleaning apparatus via the handle. The surface cleaning apparatus 100 further includes a cleaning liquid supply system for spraying cleaning liquid onto the surface to be cleaned or/and the wiping structure and a fluid recovery system for recovering soiled and contaminated cleaning liquid from the surface to be cleaned into a recovery tank. The fluid recovery system includes a vacuum extraction assembly for generating a suction airflow along a suction duct in fluid communication with a suction nozzle provided on the cleaning head 2. The cleaning head 2 comprises a housing 23 and a roller brush, the housing 23 being adapted to be moved over a surface to be cleaned and defining a first chamber 221. The roller brush includes a cleaning roller brush and a first roller brush 22, both of which may be disposed in a housing 23 configured to clean a surface to be cleaned. The cleaning roller brush is disposed in the second chamber 211 in front of the first roller brush 22 in the traveling direction of the cleaning head 2. The cleaning roller brush and the first roller brush 22 are rotated in opposite directions, and during normal operation, the cleaning roller brush is rotated in a counterclockwise direction and the first roller brush 22 is rotated in a clockwise direction. The first rolling brush 22 is disposed in the first chamber 221 and rotates around a first rotation axis 223, and the surface of the first rolling brush 22 is provided with a wiper 222, and the wiper 222 is used for cleaning the surface to be cleaned, which is cleaned by the cleaning rolling brush, again. The cleaning head 2 further comprises a scraping strip 224 arranged at the housing 23, the scraping strip 224 being in interference fit with the wiper 222, wherein the scraping strip 224 is configured to scrape off at least part of the dirt attached to the wiper 222 to prevent the at least part of the dirt from entering the first chamber 221. The specific installation manner and position of the scraper bar 224 can be referred to the description of the scraper bar 224 in the above embodiments, and are not described herein again. When the surface cleaning apparatus is used, after the apparatus is turned on, the cleaning liquid supply system supplies the cleaning liquid to the floor and/or the cleaning roller, and at the same time, the user pushes the apparatus forward, the cleaning roller (front roller) cleans the floor, and the dirt is sucked back into the recovery tank by the suction air flow, and since the first roller 22 is not supplied with the cleaning liquid and is behind the cleaning roller, the first roller 22 (rear roller) dries the cleaned floor, and some of the dirt not recovered into the recovery tank is carried forward by the first roller 22, and a part of the dirt is carried forward between the first roller 22 and the floor. The dirt is not left behind on the cleaned floor, and when the user pulls the surface cleaning apparatus backwards, the dirt left on the floor is stationary, rolled up by the backwards moving cleaning roller and then returned to the recovery tank by the suction airstream. It is ensured that the floor is both dry and free of dirt.

While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (10)

1. A cleaning head is characterized by comprising

A housing defining a first chamber;

a first roll brush disposed in the first chamber and rotating about a first rotation axis, the first roll brush being configured to clean the surface to be cleaned, which has been subjected to wet cleaning, again;

a scraping bar in interference fit with a surface of the first rolling brush for scraping off at least part of the dirt attached to the first rolling brush to prevent the at least part of the dirt from entering the first chamber.

2. The cleaning head of claim 1,

the cleaning head further comprises a cleaning member for wet cleaning the cleaning surface, the cleaning member being disposed in front of the first rolling brush in an advancing direction of the cleaning head.

3. The cleaning head of claim 2,

the wiper strip is configured to hold dirt that is not cleaned off by the cleaning member at least partially between the cleaning member and the first roll brush.

4. The cleaning head of claim 1,

the first rolling brush moves clockwise during work, the scraping strip is arranged in front of the first rotating axis along the advancing direction of the cleaning head, and the scraping strip is lower than the first rotating axis along the vertical direction.

5. The cleaning head of claim 2,

the cleaning piece comprises a cleaning rolling brush, the cleaning rolling brush is arranged in a second cavity defined by the shell and rotates around a second rotation axis, the cleaning rolling brush and the first rolling brush are respectively arranged at two ends of the shell along the moving direction of the cleaning head, and the cleaning rolling brush and the first rolling brush move along opposite directions.

6. The cleaning head of claim 5,

the cleaning head further comprises a first recycling bin disposed in the housing, the second chamber is in communication with the first recycling bin, and the cleaning roller brush propels at least a portion of the soil on the surface to be cleaned into the first recycling bin.

7. The cleaning head of claim 1,

the scraping strip is arranged on the bottom wall of the shell.

8. The cleaning head of claim 1,

the wiper strip and the housing are integrally formed.

9. A surface cleaning apparatus comprising

A main unit and a cleaning head according to any one of claims 1 to 8 connected to the main unit,

wherein the main body or the cleaning head is provided with a suction source for generating a suction airflow flowing along a suction duct, the suction duct being in fluid communication with a suction nozzle provided on the cleaning head.

10. Surface cleaning apparatus according to claim 9 in which,

the surface cleaning apparatus further comprises a cleaning liquid supply system for spraying cleaning liquid onto the surface to be cleaned in front of the cleaning head or/and the cleaning roller.

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