CN215959672U - Cleaning head and surface cleaning equipment - Google Patents

Abstract

The utility model discloses a cleaning head and a surface cleaning device comprising the same. The cleaning head includes a suction nozzle and a suction duct, the suction nozzle being adjacent to or in contact with a surface to be cleaned. The suction duct is disposed in the cleaning head, the suction duct being in fluid communication with the suction nozzle for recovering soil from the surface to be cleaned through the suction nozzle. Wherein a storage space is defined in the suction duct, the storage space being configured to store at least a portion of dirt remaining in the suction duct. The storage space is arranged in the suction pipeline, so that the returned dirt of the equipment can be effectively collected after the equipment is stopped, and the dirt attached to the suction pipeline is prevented from returning to the surface to be cleaned due to the action of gravity, and secondary pollution is caused to the surface to be cleaned.

Description

Cleaning head and surface cleaning equipment

Technical Field

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

Background

In order to make the overall machine more lightweight, the wet and dry motor and the sump are typically disposed within the body, the sump being in fluid communication with the suction nozzle of the cleaning head via a suction line. When the surface cleaning equipment works, the airflow generated by the dry and wet motor can suck dirty water and the like on the surface to be cleaned into the sewage tank, when the dry and wet motor stops running, a small part of the dirty water is possibly not sucked into the recovery tank and returns to the surface to be cleaned, and a user is required to carry out secondary cleaning.

However, there is still a small amount of dirt flowing back to the surface to be cleaned.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the technology, the utility model provides the cleaning head and the surface cleaning equipment, which can effectively prevent dirt in the suction pipeline from flowing back to the surface to be cleaned.

In one aspect, the utility model provides a cleaning head for movement over a surface to be cleaned for cleaning the surface, comprising

A suction nozzle adjacent to or in contact with the surface to be cleaned;

a suction duct provided to the cleaning head, the suction duct being in fluid communication with the suction nozzle for recovering dirt from the surface to be cleaned by the suction nozzle;

wherein the suction duct defines a storage space therein, the storage space being configured to store at least a portion of dirt remaining in the suction duct.

Optionally, the suction duct includes a horizontal section and an inclined section arranged in sequence along the airflow flowing direction, the inclined section has a bottom end and a top end along the vertical direction, and the storage space is disposed at the bottom end of the inclined section.

Optionally, the storage space is provided at an intersection of the horizontal section and the inclined section.

Optionally, a through hole communicated with the storage space is formed in the bottom wall of the cleaning head, and a sealing cover is arranged at the through hole to seal the storage space and the outside.

Optionally, the bottom wall of the horizontal segment is gradually inclined downwards along the airflow flowing direction.

Optionally, the storage space is defined by a lower housing of the cleaning head.

Optionally, the storage space is formed by partially recessing the horizontal section downward.

In another aspect, the utility model provides a cleaning head for moving over a surface to be cleaned for cleaning the surface, comprising

A suction nozzle adjacent to or in contact with the surface to be cleaned;

a suction duct provided to the cleaning head, the suction duct being in fluid communication with the suction nozzle for recovering dirt from the surface to be cleaned by the suction nozzle;

the bottom wall of the cleaning head is provided with a through hole communicated with the suction pipeline, and a sealing cover is arranged at the through hole.

Optionally, the suction pipeline comprises a horizontal section and an inclined section which are sequentially arranged along the airflow flowing direction, the inclined section is provided with a bottom end and a top end along the vertical direction, and the through hole is formed in an area corresponding to the bottom end of the inclined section.

In one aspect, the present invention also provides a surface cleaning apparatus comprising a cleaning head as described in any of the embodiments above.

The utility model provides a cleaning head and a surface cleaning device comprising the same. The cleaning head includes a suction nozzle and a suction duct, the suction nozzle being adjacent to or in contact with a surface to be cleaned. The suction duct is disposed in the cleaning head, the suction duct being in fluid communication with the suction nozzle for recovering soil from the surface to be cleaned through the suction nozzle. Wherein a storage space is defined in the suction duct, the storage space being configured to store at least a portion of dirt remaining in the suction duct. The storage space is arranged in the suction pipeline, so that the returned dirt of the equipment can be effectively collected after the equipment is stopped, and the dirt attached to the suction pipeline is prevented from returning to the surface to be cleaned due to the action of gravity, and secondary pollution is caused to the surface to be cleaned.

Drawings

Fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the utility model.

FIG. 2 is a schematic cross-sectional view of a cleaning system in one embodiment.

FIG. 3 is a schematic view of an embodiment of a cleaning head;

FIG. 4 is a schematic diagram of the cleaning head with the upper housing removed in one embodiment;

FIG. 5 is a schematic view of the upper housing of the cleaning head in one embodiment;

FIG. 6 is a schematic view of the cleaning head with the upper housing and the brush roll cover removed in one embodiment;

FIG. 7 is a schematic view of an alternative embodiment of a cleaning head;

FIG. 8 is a schematic cross-sectional view of a cleaning head in one embodiment;

FIG. 9 is a schematic view of an embodiment of the dispenser in the cleaning head shown exposed;

FIG. 10 is a schematic cross-sectional view of a cleaning head at an angle according to one embodiment;

FIG. 11 is an enlarged view of the structure of the area A shown in FIG. 10;

FIG. 12 is a cross-sectional view of the cleaning head at another angle in an 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 and 2, fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a cleaning system in one embodiment. The direction of the arrow in fig. 2 is the forward direction of the surface cleaning apparatus. The cleaning system comprises the surface cleaning apparatus 100 and the base 200, the surface cleaning apparatus 100 further comprises a contamination recovery system and a cleaning liquid supply system, the cleaning liquid supply system comprises a clean water tank 4, a pipeline and a nozzle, liquid in the clean water tank 4 is sprayed onto the roller brush or the surface to be cleaned through the nozzle after passing through the pipeline, the surface is cleaned, and then the contamination recovery system recovers the cleaned contamination. The dirt recovery system comprises a suction nozzle arranged at the cleaning head, a sump 5 for recovering dirt, a motor assembly 6 for generating a suction airflow, and a suction duct fluidly connecting the suction nozzle, the sump and the motor assembly. The suction airflow generated by the motor assembly 6 enables dirt at the suction nozzle to flow into the sewage tank 5 through the suction pipeline, and after the dirt is subjected to gas-liquid separation in the sewage tank 5, the gas is discharged out of the equipment by the motor. The base 200 may dock with the surface cleaning apparatus 100, and after the surface cleaning apparatus 100 is docked to the base 200, a battery charge may be implemented and/or a self-cleaning procedure may be initiated.

With continued reference to fig. 1 and 2, the surface cleaning apparatus 100 includes a handle 1, a main body 2, and a cleaning head 3, the handle 1 and the cleaning head 3 being respectively provided at both ends of the main body 2 in an axial direction thereof. The handle 1 comprises a handle portion 11 and an elongated rod 12, the elongated rod 12 may be a telescopic rod or a non-telescopic rod, and the elongated rod may also be pivoted or bent relative to the main body.

Referring to fig. 3-6, fig. 3 is a schematic structural view of a cleaning head according to an embodiment. Fig. 4 is a schematic structural view of the cleaning head with the upper housing removed according to an embodiment. FIG. 5 is a schematic diagram of a housing on the cleaning head in one embodiment. FIG. 6 is a schematic view of the cleaning head with the upper housing and the brush roll cover removed in one embodiment; the cleaner head 3 is provided with a pivot bracket 78 (as shown in figure 6) for docking with the pivot formation 7, and the lower link 72 is pivotally provided on the pivot bracket. The cleaning head 3 further includes an upper housing 31 and a lower housing 32, and an installation space is defined between the upper housing 31 and the lower housing 32 for installing various components. The upper casing 31 and the lower casing 32 are both h-shaped, and spaces for accommodating the roll brushes are defined at both ends in the moving direction, respectively, for mounting the front roll brush 33 and the rear roll brush 34, respectively. A rolling brush cover 38 is disposed above the rolling brush, and defines a rolling brush chamber together with the upper and lower cases 31 and 32. The inner side of the rolling brush cover is provided with a water scraping strip and/or comb teeth to scrape dirt and/or hair on the rolling brush.

With continued reference to fig. 5, the upper housing 31 is provided with a latch 311, the roller cover 38 can be released through the latch 311, the upper housing 31 is further provided with an ejection mechanism 312, and the ejection mechanism 312 ejects the roller cover a certain distance after the roller cover is unlocked, so as to facilitate the user to take off the roller cover. The upper housing 31 and the pivot bracket 78 cooperate to limit the forward-rearward, upward-downward movement of the lower link, allowing only pivotal movement of the lower link about the pivot axis.

With continued reference to fig. 6, the lower housing 32 is provided with a water pump 321, a circuit board 322, a roller brush drive assembly 8, an ozone generator 323, and the like. The lower housing 32 is also provided with universal wheels and/or rollers. The water pump 321 and the roller brush driving assembly 8 are respectively arranged on two opposite sides of the suction pipeline 324, the ozone generator 323 is arranged behind the suction pipeline 324, and the circuit board 322 is arranged behind the water pump 321. The water pump 321 is installed in the lower shell through a water pump cover, and the periphery of the water pump 321 is provided with a shock pad. The round brush drive assembly 8 is installed in the lower shell through the assembly cover, and the periphery of the drive motor is provided with a shock pad.

Both ends of the lower housing 32 in the axial direction of the roll brush are provided with water leakage holes (not shown) respectively for guiding the liquid inside the cleaning head to the surface to be cleaned.

Referring to fig. 7-9, fig. 7 is a schematic view of another angle of the cleaning head in one embodiment. FIG. 8 is a cross-sectional view of a cleaning head in one embodiment. Figure 9 is a schematic view of the dispenser in the cleaning head shown exposed in one embodiment. With continued reference to fig. 9, a dispenser 35 is provided on the cleaner head for spraying cleaning liquid onto the front roller brush, the dispenser 35 fitting into a recess defined by the lower housing. The distributor 35 is a strip structure and is provided with a water chute, spray holes are uniformly arranged in the water chute, cleaning solution is sprayed to the rolling brush, and the rolling brush scraping strip 36 is arranged below the distributor and is used for scraping most of dirt on the rolling brush before wetting the rolling brush. The rolling brush scraper 36 may be made of a metal material or a hard plastic.

With continued reference to fig. 7 and 8, a floor scraping strip 37 is also provided on the lower housing for scraping the surface to be cleaned. The ground scraping strip 37 is arranged behind the front rolling brush, and the missed dirt is kept at the suction port in the advancing process, so that the missing of the dirt is reduced as much as possible. The ground scraping strip 37 is installed to the lower shell through the installation support 39, at least one roller is further arranged on the installation support 39, the installation support 39 is detachably arranged on the lower shell, and a user can clean the scraping strip and the roller by detaching the installation support. The mounting bracket 39 is further provided with a through hole 391, the through hole 391 is communicated with the suction pipeline, and a sealing cover 392 is arranged at the through hole, so that the through hole can be sealed, and after the sealing cover 392 is opened, dirt accumulated in the suction pipeline 324 can be cleaned through the through hole. The ground scraping strip can be made of soft rubber or hard rubber materials, and is not limited here.

With continued reference to fig. 8, the front rolling brush 33 and the rear rolling brush 34 rotate in opposite directions, a rolling brush scraping strip 36 for scraping off dirt of the rolling brush is arranged in a rolling brush cavity where the front rolling brush 33 is located, the suction pipeline 324 is communicated with the front rolling brush cavity to suck the scraped dirt into the sewage tank, a rolling brush cavity where the rear rolling brush 34 is located is not communicated with the suction pipeline and is a single chamber, a rear scraping strip 325 is also arranged at the rear rolling brush cavity and is used for scraping off at least part of dirt on the rear rolling brush to prevent the dirt from entering the rolling brush cavity, the rear scraping strip 325 is arranged in front of the rear rolling brush and is mounted on the lower housing, and the position of the rear scraping strip 325 in the height direction is slightly higher than the surface to be cleaned and is not in contact with the surface to be cleaned. The rear scraping strip is arranged in front of the rear rolling brush, when the cleaning machine is used for cleaning forwards, dirt on the rear rolling brush can be continuously scraped off and then pushed forwards by the rear rolling brush, so that the dirt is not missed on the surface to be cleaned, when the cleaning machine is used for cleaning backwards, the scraped dirt is left on the surface to be cleaned, and then the scraped dirt is swept by the front rolling brush or sucked by the suction nozzle and then is recovered to the sewage tank.

Referring to fig. 10-12, fig. 10 is a schematic cross-sectional view of a cleaning head at an angle according to one embodiment. Fig. 11 is an enlarged view of the structure of the region a shown in fig. 10. FIG. 12 is a cross-sectional view of the cleaning head at another angle in an embodiment. In this embodiment, the cleaning head 3 includes a suction nozzle 329 and a suction conduit 324, the suction nozzle 329 being adjacent to or in contact with the surface to be cleaned. Stirring pieces such as a rolling brush and the like can be arranged in the suction nozzle, and any stirring piece can not be included. The suction conduit 324 is in fluid communication with the suction nozzle 329 for the recovery of soil from the surface to be cleaned by the suction nozzle 329. The suction duct 324 defines a storage space 328 therein, the storage space 328 being configured to store at least a portion of dirt remaining within the suction duct. The residual dirt referred to herein means that a part of the dirt attached to the inside of the duct flows back to the suction nozzle due to gravity after the apparatus is stopped. If the dirt is heavy, it may flow from the suction nozzle back to the surface to be cleaned. The storage space 328 serves to temporarily store the part of the contaminated water to be recovered to the contaminated water tank when the apparatus is operated next time (self-cleaning or normal operation). The storage space is arranged in the suction pipeline, so that the returned dirt of the equipment can be effectively collected after the equipment is stopped, and the dirt attached to the suction pipeline is prevented from returning to the surface to be cleaned due to the action of gravity, and secondary pollution is caused to the surface to be cleaned. The storage space is defined by the lower housing of the cleaning head. In one embodiment, the horizontal section and the lower housing are integrally molded, and the storage space is formed by a portion of the horizontal section being depressed downward.

With continued reference to fig. 10-12, the bottom wall of the cleaner head 3 is provided with a through hole communicating with the storage space 328, and a sealing cover 392 is provided at the through hole to seal the storage space from the outside. After the sealing cover 392 is opened, the user can clean the storage space 328 and the suction pipe 324, so that the cleanness in the pipe can be kept, and the phenomenon that more dirt is attached to the inner wall of the suction pipe 324 to generate peculiar smell is avoided.

Of course, in other embodiments, the horizontal segment 326 and the storage space 328 may also be separate. When the storage space 328 is defined by a single part, the part may be individually removed for cleaning. When the parts defining the storage space are removed, the user can clean the suction duct through the position.

In one embodiment, the suction duct includes a horizontal section 326 and an inclined section 327 arranged in sequence along the airflow direction. The horizontal section 326 is not intended to be a feature of the present invention, and may be disposed at a substantially horizontal angle, but is not intended to be at an excessive angle. The inclined section 327 means that the section of pipe is inclined upwards relative to the horizontal section, and through the inclined section, the dirt enters the waste tank or enters the pipe communicated with the waste tank. Because the slope section slope sets up, along the vertical direction slope section bottom and top have, in order to make the remaining dirty quilt of whole slope section collect, storage space sets up in the bottom of slope section. Further, the storage space is provided at an intersection of the horizontal section and the inclined section. The bottom wall of the horizontal section is gradually inclined downwards in the direction of the air flow, i.e. the distance from the suction nozzle to the storage space, and the horizontal section is gradually inclined downwards in the direction of the air flow, so that residual dirt in the horizontal sections 36 can also be effectively collected in the storage space 328.

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 for movement over a surface to be cleaned for cleaning the surface, comprising

A suction nozzle adjacent to or in contact with the surface to be cleaned;

a suction duct provided to the cleaning head, the suction duct being in fluid communication with the suction nozzle for recovering dirt from the surface to be cleaned by the suction nozzle;

wherein the suction duct defines a storage space therein, the storage space being configured to store at least a portion of dirt remaining in the suction duct.

2. The cleaning head of claim 1,

along the air current flow direction the suction pipeline is including arranging horizontal segment and slope section in proper order, along the vertical direction the slope section has bottom and top, storage space set up in the bottom of slope section.

3. The cleaning head of claim 2,

the storage space is provided at an intersection of the horizontal section and the inclined section.

4. The cleaning head of claim 1,

the bottom wall of the cleaning head is provided with a through hole communicated with the storage space, and a sealing cover is arranged at the through hole to seal the storage space and the outside.

5. The cleaning head of claim 2,

the bottom wall of the horizontal section is gradually inclined downwards along the flowing direction of the airflow.

6. The cleaning head of claim 1,

the storage space is defined by a lower housing of the cleaning head.

7. The cleaning head of claim 2,

the storage space is formed by partially recessing the horizontal section downwards.

8. A cleaning head for movement over a surface to be cleaned for cleaning the surface, comprising

A suction nozzle adjacent to or in contact with the surface to be cleaned;

a suction duct provided to the cleaning head, the suction duct being in fluid communication with the suction nozzle for recovering dirt from the surface to be cleaned by the suction nozzle;

the bottom wall of the cleaning head is provided with a through hole communicated with the suction pipeline, and a sealing cover is arranged at the through hole.

9. The cleaning head of claim 8,

along the air current flow direction the suction pipeline is including arranging horizontal segment and slope section in proper order, along the vertical direction the slope section has bottom and top, the through-hole set up in the region that the bottom of slope section corresponds.

10. A surface cleaning apparatus, characterised in that the surface cleaning apparatus comprises a cleaning head as claimed in any one of claims 1 to 9.

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