CN114451824A

CN114451824A - Surface cleaning equipment

Info

Publication number: CN114451824A
Application number: CN202111499267.6A
Authority: CN
Inventors: 车军伟
Original assignee: Suzhou Simple Youwei Technology Co Ltd
Current assignee: Suzhou Simple Youwei Technology Co Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-05-10
Anticipated expiration: 2041-12-09
Also published as: CN114451824B; WO2023103632A1; CN115530685A; CN115670320A

Abstract

A surface cleaning apparatus includes a cleaning liquid supply system and a cleaning head. The cleaning liquid supply system includes a cleaning liquid tank and a supply line connected to the cleaning liquid tank. The cleaning head includes a housing movable along a surface to be cleaned and a brush roll disposed in the housing. The brush roll comprises a rolling brush cylinder body, and an accommodating space is limited in the rolling brush cylinder body; the fluid distributor is arranged in the accommodating space, is in fluid communication with the supply pipeline and comprises a plurality of liquid outlets which are arranged at intervals along the axial direction of the brush roller; the rolling brush barrel is provided with at least one group of fluid outlets, and liquid flowing out from the liquid outlet is collected by the liquid collecting chambers and then discharged through the fluid outlets.

Description

Surface cleaning equipment

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to surface cleaning equipment.

Background

Wet cleaning apparatuses generally include a cleaning liquid supply system and a cleaning head on which a roller brush and a fluid distributor in fluid communication with the cleaning liquid supply system are generally disposed for distributing cleaning liquid to an outer surface of the cleaning head or a surface to be cleaned. The rolling brush is generally in a hollow cylindrical shape and comprises a rolling brush cylinder body and a wiping piece arranged on the outer side of the rolling brush cylinder body.

Since the fluid distributor occupies a part of the space, the overall volume of the cleaning head is correspondingly increased, and the space inside the drum of the roll brush is not effectively utilized.

Disclosure of Invention

In view of the above-mentioned disadvantages in the art, the present invention provides a surface cleaning apparatus in which a fluid dispenser is disposed inside a roller brush, the overall volume of a cleaning head can be effectively reduced, and a liquid collection chamber is disposed in an accommodation space to facilitate the discharge of liquid.

In one aspect, the invention provides a surface cleaning apparatus comprising

A cleaning liquid supply system including a cleaning liquid tank and a supply line connected to the cleaning liquid tank;

a cleaning head including a housing movable along a surface to be cleaned and a brush roll disposed in the housing, the brush roll comprising:

the rolling brush device comprises a rolling brush cylinder body, wherein an accommodating space is limited in the rolling brush cylinder body; and

a fluid distributor disposed in the accommodating space, the fluid distributor being in fluid communication with the supply line, the fluid distributor including a plurality of liquid outlets spaced apart along an axial direction of the brush roll;

the rolling brush comprises a rolling brush barrel, a liquid outlet, a plurality of liquid collecting chambers and at least one group of fluid outlets, wherein the liquid collecting chambers corresponding to the liquid outlet are arranged in an accommodating space of the rolling brush barrel, the liquid collecting chambers are arranged at intervals along the axial direction of the brush roller, the rolling brush barrel is provided with at least one group of fluid outlets, and liquid flowing out of the liquid outlet is collected by the liquid collecting chambers and then is discharged through the fluid outlets.

Optionally, the liquid collecting chamber is an annular groove extending along the circumferential direction of the brush roller, and at least one flow blocking structure is arranged in the annular groove and used for blocking at least part of fluid from moving relative to the roller brush cylinder so as to enable at least part of fluid to gather near the fluid outlet.

Optionally, the rolling brush cylinder is provided with a plurality of groups of fluid outlets, and the plurality of groups of fluid outlets are arranged at intervals along the circumferential direction of the rolling brush cylinder.

Optionally, the fluid distributor comprises at least two sets of liquid outlets, and the at least two sets of liquid outlets are arranged at intervals along the circumferential direction of the rolling brush cylinder.

Optionally, the fluid dispenser further comprises a heating element for heating the fluid, and the fluid dispenser is arranged on the heating element.

In another aspect, the invention also provides a surface cleaning apparatus comprising

the inner wall of the roller brush barrel is provided with at least one flow guide groove, each flow guide groove is internally provided with at least one fluid outlet, and the liquid flowing out of the liquid outlet enters the flow guide groove and then is discharged through the fluid outlet.

Optionally, the diversion trench extends along the circumferential direction of the roller brush barrel, and the fluid outlet is arranged at the end of the diversion trench.

Optionally, the flow guide groove extends in both the circumferential direction and the axial direction of the roller brush barrel.

Optionally, the diversion trench is spirally disposed on the inner wall of the rolling brush barrel.

The invention provides a surface cleaning apparatus comprising a cleaning liquid supply system and a cleaning head. The cleaning liquid supply system includes a cleaning liquid tank and a supply line connected to the cleaning liquid tank. The cleaning head includes a housing movable along a surface to be cleaned and a brush roll disposed in the housing. The brush roll comprises a rolling brush cylinder body, and an accommodating space is limited in the rolling brush cylinder body; the fluid distributor is arranged in the accommodating space and is in fluid communication with the supply pipeline, and the fluid distributor comprises a plurality of liquid outlets which are arranged at intervals along the axial direction of the brush roller; the rolling brush barrel is provided with at least one group of fluid outlets, and liquid flowing out from the liquid outlet is collected by the liquid collecting chambers and then discharged through the fluid outlets. The fluid distributor is arranged inside the brush roller, and meanwhile, the liquid collecting chamber corresponding to the fluid distributor is arranged inside the brush roller, so that the equipment space can be effectively saved, and the effect of uniformly distributing the fluid is achieved.

Drawings

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

FIG. 2 is a schematic diagram of a cleaning head according to an embodiment;

FIG. 3 is a schematic view of the housing of the cleaning head of FIG. 2;

FIG. 4 is a schematic view of an embodiment of a brush roll;

FIG. 5 is an exploded view of an embodiment of a brush roll;

FIG. 6 is a schematic cross-sectional view of an angled lower brush roll in the axial direction;

FIG. 7 is a schematic cross-sectional view of another angled lower brush roll in the axial direction;

FIG. 8 is a schematic view of a structure of an angle lower deflector element;

FIG. 9 is a schematic view of another embodiment of the lower deflector element;

FIG. 10 is a schematic structural diagram of the first cylinder in one embodiment;

FIG. 11 is a schematic structural view of a second cylinder in one embodiment;

FIG. 12 is a schematic view of an embodiment of an elongated body;

FIG. 13 is a schematic view of the elongated body in an axial direction;

FIG. 14 is a schematic view of a handle at an angle;

FIG. 15 is a schematic view of the handle at another angle;

FIG. 16 is a schematic view of an embodiment of a brushroll built-in fluid dispenser;

FIG. 17 is a schematic view of an embodiment of a heating element built into the brush roll;

FIG. 18 is a schematic structural view showing a liquid collecting chamber formed in the inner wall of the drum body of the roll brush in one embodiment;

FIG. 19 is a schematic structural view showing a liquid collecting chamber formed in the inner wall of the drum of the roll brush in one embodiment;

FIG. 20 is a schematic structural view illustrating an embodiment of a roller brush having a guiding groove on an inner wall of a barrel;

FIG. 21 is a schematic cross-sectional view of the roll brush cartridge in an axial direction according to an embodiment;

FIG. 22 is a schematic sectional view of a drum of a roll brush in an axial direction according to another embodiment;

FIG. 23 is a schematic sectional view of a drum of a roll brush in an axial direction in accordance with still another embodiment;

FIG. 24 is a schematic cross-sectional view of a brush roll in an axial direction according to 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.

The present application discloses a surface cleaning apparatus which may be an upright surface cleaning apparatus, a hand-held surface cleaning apparatus or a self-propelled surface cleaning apparatus, and is not limited in detail herein. Referring to fig. 1-3, fig. 1 is a schematic structural view of a surface cleaning apparatus in an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a cleaning head in an embodiment. Figure 3 is a schematic view of the housing of the cleaning head of figure 2. Fig. 1 shows an upright cleaning apparatus, and the surface cleaning apparatus 100 of fig. 1 includes a cleaning liquid supply system for supplying cleaning liquid to a surface to be cleaned or a wipe wiping the surface to be cleaned. The cleaning liquid supply system includes a cleaning liquid tank and a supply line in fluid communication with the cleaning liquid tank. The surface cleaning apparatus 100 further comprises a cleaning head 10 comprising a housing 2 movable over a surface to be cleaned, the housing 2 defining an installation space. In a vertical type cleaning device, the cleaning head 10 may be pivotally connected to the main body, in a handheld device, the cleaning head 10 may be connected to the main machine through an extension pipe, and in a self-propelled cleaning device, such as a sweeping robot, the housing 2 of the cleaning head 10 is at least a part of the main housing of the sweeping robot, and of course, the main housing of the sweeping robot may also be the same structure as the housing 2 of the cleaning head 10. FIG. 4 is a schematic view of an embodiment of a brush roll. FIG. 5 is an exploded view of an embodiment of a brush roll. FIG. 6 is a schematic cross-sectional view of an angled lower brush roll in the axial direction. FIG. 7 is a schematic cross-sectional view of another angled lower brush roll in the axial direction. Referring to fig. 4 and 5, the cleaning head 10 is provided with a brush roller 101, the brush roller 101 is mounted in a mounting space defined by the housing, the brush roller 101 is rotatable about its own axis, and the outer circumference of the roller brush body 1 may be provided with a wiping piece 17. The wipe material 17 may be made of one or more of bristle, sponge, floss, cotton cloth, etc., and is not limited thereto. The wiping piece 17 rotates substantially in synchronism with the brush roller to clean the surface to be cleaned. The brush roll includes the round brush barrel 1, and the inside of round brush barrel 1 is injectd there is the accommodation space. The brush roller further comprises a first end cover 3 and a second end cover 4 which are oppositely arranged along the axial direction of the roller brush barrel body 1, wherein the first end cover 3 is provided with a liquid inlet pipeline 31 for liquid to enter the accommodating space and/or a line channel 32 for a power supply line to enter the accommodating space. Referring to fig. 6 and 7, a heating device or a fluid distributor may be separately provided in the accommodating space. Of course, the accommodating space may also be provided with a heating device and a fluid distributor, the heating device may be disposed on the first end cap 3, that is, fixedly or detachably mounted on the first end cap, and the heating device may also be disposed on the roller brush barrel 1, and is configured to heat the fluid entering from the fluid inlet pipeline 31. The fluid dispenser dispenses the heated fluid directly or indirectly onto the wipe 17 or surface to be cleaned. Referring to fig. 14 and 15, fig. 14 is a schematic structural view of an angle carrying handle. Fig. 15 is a schematic structural view of the handle at another angle. The first end cap 3 is provided with a liquid inlet pipe 31 for liquid to enter the receiving space and/or a line channel 32 for a power supply line to enter the receiving space. Referring to the figures, at least part of the intake conduit 31 is arranged substantially coaxially with the rotation axis of the brush roller. The first end cap 3 is provided with a handle 33, and the handle 33 is used for detachably mounting the brush roller to the housing. The handle 33 is also provided with a liquid inlet pipe 31 for liquid to enter the accommodating space and/or a line channel 32 for the power supply line to enter the accommodating space.

Referring to fig. 5-7, the roll brush cartridge 1 is removably attached to the first end cap 3. When a user cleans the brush roller, the user only needs to disassemble the roller brush barrel 1 along the axial direction and then clean the roller brush barrel, and the first end cover 3 with a pipeline or a circuit does not need to be cleaned, so that the pipeline or the circuit inside the roller brush barrel is prevented from being damaged. Further, by detachably connecting the cylinder to the first end cap 3, when the user replaces the brush roller, since the first end cap 3 is provided with a circuit or a pipe therein, the use can be continued, reducing the replacement cost.

Referring to fig. 5, the first end cap 3 includes a first fixing portion 34, and a first bearing 35 is disposed at an outer circumference of a portion of the first fixing portion 34. The periphery of first bearing 35 is provided with first rotation portion 36, and first rotation portion 36 is provided with first joint structure, and first joint structure cooperates with the third joint structure that is located the round brush barrel 1 in order to realize the dismouting between round brush barrel 1 and the first end cover 3. The second end cap 4 includes a second fixing portion 41, a second bearing 42 is disposed on the outer periphery or inner periphery of a portion of the second fixing portion 41, a second rotating portion 43 is disposed on the inner periphery or outer periphery of the second bearing 42, the second rotating portion 43 is provided with a second clamping structure, and the second clamping structure is matched with a fourth clamping structure located on the rolling brush cylinder 1 to achieve dismounting/mounting between the rolling brush cylinder 1 and the first end cap 3. Referring to the figures, the wiping member 17 is a cylindrical structure, and the wiping member 17 is detachably provided to the roll brush cylinder 1 in the axial direction of the brush roller. A positioning structure is arranged between the wiping piece 17 and the cylindrical structure, and the positioning structure ensures that the wiping piece 17 and the brush roll are kept relatively static when the brush roll rotates.

Referring to fig. 5-13, fig. 8 is a schematic view of an angled flow directing element. Fig. 9 is a schematic structural view of a flow guiding element at another angle. Fig. 10 is a schematic structural diagram of the first cylinder in an embodiment. Fig. 11 is a schematic structural diagram of the second cylinder in an embodiment. FIG. 12 is a schematic view of an embodiment of an elongated body. Fig. 13 is a schematic view of the elongated body in an axial direction. The cleaning head 10 in any of the above embodiments includes a heating device for heating the fluid, and the fluid distributor 66 (refer to fig. 16) may be provided to the heating device, and the heating device is used to heat the fluid before the fluid flows out of the fluid distributor 66, and then the heated fluid flows out of the fluid distributor 66. Since the heating device is stationary relative to the housing when the brush roller rotates, the heating device needs to be stationarily disposed in the accommodating space. The heating means is in fluid communication with the lines of the cleaning liquid supply system for heating the fluid and delivering the heated fluid to the at least one set of fluid outlets 15. The heating device is arranged in the roller brush, so that the distance between the heated fluid flowing out of the heating device and the fluid outlet 151 of the roller brush cylinder 1 can be shortened, the heat loss of the fluid in the process is reduced, the temperature of the fluid sprayed out of the fluid outlet 151 is ensured to be kept at a certain temperature, and the cleaning effect is improved. The heating means may also be a steam generator for generating steam which is sprayed through the fluid outlet 151 onto the wipe 17 and/or the surface to be cleaned. The structure of the heating device is described in detail below.

Referring to fig. 5-13, a heating device is used to heat the fluid, the heating device comprising an elongated body 65, a heating element 63, and a flow directing element 64. The elongate body 65 includes along its length the elongate body 65 with oppositely disposed first and second ends 652, 653; the elongated body 65 may have any shape, and may be an elongated solid cylinder or an elongated hollow cylinder, which is not limited in detail herein.

Referring to fig. 13, the heating element 63 is disposed within a heating zone 651 defined by the elongated body 65. As shown in the illustrated embodiment, the heating region 651 can be disposed only partially within the elongated body 65. In other embodiments, the heating region 651 can also be distributed throughout the elongated body 65. The heating element 63 may be an electrical heating blade secured to the heating region 651 of the elongate body 65 by adhesive or the like. The heating element 63 may also be etched directly onto the elongated body 65, and will not be described in detail herein with respect to the etching process. When the elongated body 65 comprises an outer wall and an inner wall 16, the heating element 63 may be arranged on the outer wall or the inner wall 16 of the elongated body 65, depending on the shape of the elongated body 65 and the actual requirements.

Referring to fig. 8 and 9, and also to fig. 7, a flow directing element 64 is used to direct fluid through a heating zone 651 before it is delivered to at least one set of exit ports 62. The flow guide element 64 may be made of rubber material, or may be made of plastic material or other heat insulating material, which is not limited herein. The flow directing elements 64 define flow passages therein through which fluid is heated. When the heating element 63 is in direct contact with the deflector element 64, the elongate body 65 may be of a thermally insulating material, such that the heat generated by the heating element 63 heats the fluid to a substantial extent. When the heating element 63 is disposed outside the elongated body 65 and transfers heat to the flow guiding element 64 through the elongated body 65, the elongated body 65 may be made of a material with good thermal conductivity, such as copper, aluminum, solid thermal conductive silicone, and the like, which is not limited herein.

Referring to fig. 5-9, 12-13, in the embodiment shown, the elongated body 65 is a cylindrical structure defining a receiving space in which at least a portion of the deflector element 64 is disposed. As shown in the figure, the flow guiding element 64 is a cylindrical structure, and a flow guiding channel 641 is disposed on a position of the surface of the flow guiding element 64 corresponding to the heating area 651, and in order to improve the heating efficiency, the flow guiding channel 641 is a groove-shaped structure, and the groove-shaped structure cooperates with the inner wall 16 of the elongated body 65 to form a closed channel. In this way, the fluid can be in direct contact with the heating element 63 or the elongated body 65, with greater heating efficiency. The guide passage 641 includes a first passage 642 and a second passage 643 communicating with the first passage 642 and disposed downstream of the first passage 642. At least a portion of the first channel 642 is bent and extends along the length direction. The bending extension may be a circuitous extension or a spiral extension. By adopting the arrangement mode, the heating efficiency can be effectively improved. At least a portion of the second channel 643 extends along a length of the elongate body 65. At least a portion of second passage 643 corresponds with discharge port 621, and fluid in second passage 643 is discharged through discharge port 621. Referring to fig. 12 and 13, elongated body 65 is provided with at least one set of liquid outlets 62, where the set of liquid outlets 62 includes a plurality of liquid outlets 621, and the plurality of liquid outlets 621 are spaced apart between first end 652 and second end 653. Liquid outlet 621 is arranged in this way, so that liquid can be uniformly discharged along the length direction of the elongated body 65. In order to make the liquid output from each liquid outlet 621 relatively uniform, the inlet of the second passage 643 is generally disposed at an intermediate position corresponding to the group of liquid outlets 62.

With continued reference to fig. 12 and 13, when the elongated body 65 is cylindrical, in order to ensure uniform liquid discharge in the circumferential direction thereof, the elongated body 65 includes a plurality of groups of liquid outlet ports 621, the plurality of groups of liquid outlet ports 621 being arranged at intervals in the width direction (circumferential direction) of the elongated body 65. Of course, in other embodiments, when the elongated body 65 has other shapes, in order to ensure uniform liquid discharge, a plurality of groups of liquid discharge holes 621 may be disposed along the width direction. When there are multiple sets of liquid outlets 621, multiple second passages 643 connected in parallel are correspondingly disposed, and each second passage 643 corresponds to one set of liquid outlets 62. Referring to the figures, when cylindrical elongated body 65 is provided with two sets of exit orifices 621. The second passage 643 includes a left flow passage and a right flow passage connected in parallel with each other, and the left flow passage and the right flow passage are respectively provided on both sides of the first passage 642 in the width direction of the elongated body 65. Referring to fig. 9, the heating device further includes an inlet 61, and the inlet 61 is disposed on the flow guiding element 64.

Referring to fig. 7 and 12, the heating areas 651 are disposed at the lower end of the elongated body 65 along the gravity direction, and the flow guiding element 64 is disposed above the heating areas 651, so that, in the operation process of the heating device, the fluid in the flow guiding channel 641 can cling to the heating areas 651 due to the gravity, and even if the flow rate in the flow guiding channel 641 is insufficient, the liquid can fully contact with the heating areas 651, and the heating effect of the liquid is ensured.

Since the heating device (or fluid distributor) does not rotate with the brush roll, fluid discharged from the heating device enters the annular cavity and is discharged. Therefore, special structures are designed in the annular cavity to ensure smooth discharge of the liquid from the fluid outlet 151. For this reason, the present application provides the following solutions to the above-described problems. Referring to fig. 16-19, fig. 16 is a schematic diagram of an embodiment of a brushroll built-in fluid dispenser. FIG. 17 is a schematic view of an embodiment of a heating element built into the brush roll. FIG. 18 is a schematic structural view showing a liquid collecting chamber formed on the inner wall of the roller brush body in one embodiment. FIG. 19 is a schematic view of a liquid collecting chamber formed on the inner wall of the roller brush body in one embodiment. Referring to fig. 10, 11, 13 and 14, in some embodiments, a fluid distributor 66 is disposed in the receiving space, the fluid distributor 66 is in fluid communication with the supply line, and the fluid distributor 66 includes a plurality of liquid outlets 621 arranged at intervals along the axial direction of the brush roller; wherein, be provided with a plurality of collecting chambers 13 corresponding with liquid outlet 621 in the accommodation space of round brush barrel 1, a plurality of collecting chambers 13 are arranged along the axial direction interval of brush roll, and round brush barrel 1 is provided with at least a set of fluid export 15, and the liquid that flows out from liquid outlet 621 is discharged through fluid export 151 after being collected by collecting chamber 13. Arrange liquid outlet 621 along the axial interval of brush roll, discharge through fluid outlet 151 after every liquid outlet 621 spun liquid is collected by corresponding liquid collecting chamber 13, can guarantee that the cleaning solution is evenly discharged along the axial direction of brush roll, simultaneously, with liquid collecting chamber 13 interval distribution, can effectively ensure to be got rid of after liquid collecting chamber 13 is collected from liquid outlet 621 spun very first time, avoid a large amount of cleaning solutions to pile up in the inside accommodation space of brush roll. The liquid collection chamber 13 may be defined by a flow blocking structure 131 protruding outward from the inner wall 16 of the roller brush barrel 1, the flow blocking structure 131 may define an independent space enclosed all around, and the flow blocking structure 131 may also be a baffle structure having a fluid inlet, and the baffle structure prevents the fluid therein from rotating relative to the roller brush barrel 1.

Referring to fig. 6 and 7, when fluid distributor 66 is stationary with respect to the housing, i.e. when roller brush cylinder 1 is moving, fluid distributor 66 is stationary, and fluid outlet 621 is moving with respect to roller brush cylinder 1, it is difficult to discharge fluid out of fluid outlet 151 by centrifugal force if the fluid is sprayed directly into the receiving space. In one embodiment, the frequency of the liquid output from the liquid outlet 621 can be controlled by the control program to correspond to the rotation speed of the roller brush body 1, i.e. when the liquid collecting chamber 13 rotates to the area corresponding to the liquid outlet 621, the fluid distributor 66 is controlled to spray the fluid, so as to ensure that at least part of the fluid is collected by the liquid collecting chamber 13. When the plenum 13 rotates to another position, the control fluid distributor 66 stops spraying fluid. By adopting the above control mode, most of the fluid can be effectively prevented from accumulating in the accommodating space and cannot be discharged through the fluid outlet 151.

Referring to fig. 6, 7, 10 and 11, in another embodiment, since the liquid collecting chamber 13 rotates together with the roller brush body 1, it is highly likely that the liquid discharged from the liquid outlet 621 is not collected in the liquid collecting chamber 13. Therefore, the liquid collecting chamber 13 is an annular groove extending along the circumferential direction of the brush roller, and the annular groove corresponds to the liquid outlet 621 in the rotation process of the brush roller, that is, most of or even all of the fluid ejected from the liquid outlet 621 is collected by the annular groove. Referring to fig. 18-19, the direction of the arrows is the rotation direction of the brush roller, and at least one flow blocking structure 131 is disposed in the annular groove, and the flow blocking structure 131 is used for blocking at least part of the fluid from moving relative to the roller brush body 1 so that at least part of the fluid is gathered near the fluid outlet 151. The fluid blocking structure 131 is generally disposed downstream of the fluid outlet 151 in a rotational direction of the brush roller such that the fluid blocking structure 131 blocks at least a portion of the fluid to rotate with the brush roller, the portion of the fluid flowing out of the fluid outlet 151 due to centrifugal force. The structure 131 may be a baffle extending in the axial direction of the brush roller, the baffle directly closing the annular groove so that the fluid cannot freely circulate along the annular groove. The structure 131 may also be a stop disposed around the outlet 151 and not completely enclose the annular recess, but rather only block a portion of the fluid from remaining near the outlet 151, and the remainder of the fluid may flow around the stop. With the advantages of this arrangement, it is avoided that most of the fluid is collected at the fluid outlet 151, and the fluid outlet 151 cannot completely discharge the fluid, so that the excess fluid overflows into the accommodating space, and energy loss is caused.

Referring to fig. 10 and 11, in one embodiment, to realize the axial annular groove, the roller brush barrel 1 is manufactured separately in two parts, namely a first barrel 11 and a second barrel 12, each part including at least one semicircular groove, and the two parts are fixed together by bolts or other fixing methods after being manufactured to form a complete annular groove. In the present embodiment, the annular groove is defined by two annular plates which project relative to the inner wall 16 of the roller brush cylinder 1. In other embodiments, the annular groove may also be formed by inward depression of the inner wall 16 of the roller brush cylinder 1. Of course, other well-established processes may be used to form the spaced grooves in a hollow roller brush body 1.

Further, in order to ensure that most of the liquid discharged from the liquid outlet 621 is collected in the liquid collecting chamber 13, the liquid outlet 621 of the fluid distributor 66 may extend into the annular groove.

Referring to fig. 20-22, and 16 and 17, fig. 20 is a schematic structural view illustrating that the inner wall of the roller brush barrel is provided with a diversion trench in one embodiment. FIG. 21 is a schematic cross-sectional view of the roll brush cartridge in an axial direction according to an embodiment. Fig. 22 is a schematic sectional view of a drum of a roll brush in an axial direction according to another embodiment. In order to solve the problem of discharging fluid from the annular cavity, the application also provides another cleaning head 10, the cleaning head 10 is provided with a brush roll, the brush roll is arranged in the installation space and can rotate around the axis of the brush roll, and the periphery of the roller brush barrel 1 is provided with a wiping test piece 17; the wiping piece 17 rotates substantially in synchronism with the brush roller to clean the surface to be cleaned. An accommodating space is limited in the roller brush barrel body 1. A fluid distributor 66 is arranged in the accommodating space, the fluid distributor 66 is in fluid communication with the supply pipeline, and the fluid distributor 66 comprises a plurality of liquid outlets 621 arranged at intervals along the axial direction of the brush roller; fluid distributor 66 may be an elongated tube having a plurality of fluid outlets 621 uniformly distributed therein. The inner wall 16 of the roller brush barrel 1 is provided with at least one flow guide groove 14, each flow guide groove 14 is provided with at least one fluid outlet 151, and the liquid flowing out from the liquid outlet 621 enters the flow guide groove 14 and then is discharged through the fluid outlet 151. The channel 14 is formed by recessing the inner wall 16, and fluid can flow into the channel 14 when flowing through the inner wall 16.

Referring to fig. 20 and 22, in one embodiment, the guide groove 14 extends in the circumferential direction of the drum 1, and the fluid outlet 151 is provided at an end of the guide groove 14. The fluid in the guiding groove 14 rotates along with the roller brush barrel 1 at the end of the guiding groove 14, and at this time, the fluid flows out from the fluid outlet 151 at the end due to the centrifugal force. The guide channels 14 comprise opposite front and rear ends in the direction of rotation of the brush roll, i.e. the direction extending from the rear end to the front end is the direction of rotation of the brush roll. The fluid outlet 151 is preferably located at the rear end, where the fluid is first collected and then discharged from the fluid outlet 151 by centrifugal force. When the fluid outlet 151 is disposed at the front end, the fluid will generally flow out of the fluid outlet 151 due to the centrifugal force until the fluid in the guide groove 14 is collected at the front end.

Referring to fig. 20 and 22, in another embodiment, the channels 14 extend in both the circumferential and axial directions of the roller brush body 1. At this time, the fluid outlet 151 in the guiding groove 14 may be disposed at any position in the guiding groove 14, because the guiding groove 14 extends axially while extending axially, and the rotation direction of the brush roller rotates circumferentially, the fluid in the guiding groove 14 may be forced by the sidewall of the guiding groove 14 when flowing along the guiding groove 14, so that the flow of the fluid is slowed down and cannot be synchronized with the rotation of the brush roller, and at this time, a part of the fluid may be discharged at the fluid outlet 151 under the action of centrifugal force. The number of channels 14 may be plural, and each channel 14 may be provided with at least one fluid outlet 151, and of course, the fluid outlet 151 may be provided at the rear end and/or rear end of the channel 14. When fluid outlet 151 is disposed between the front and rear ends of flow guide 14, a flow blocking structure 131 may be disposed at a position corresponding to fluid outlet 151, and flow blocking structure 131 may be configured to collect at least a portion of the fluid near fluid outlet 151, so that the portion of the fluid may be discharged from fluid outlet 151 due to centrifugal force.

Referring to fig. 22, in another embodiment, the guiding groove 14 is spirally disposed on the inner wall 16 of the rolling brush barrel 1. The inner wall 16 of the roller brush body 1 may be provided with a guiding groove 14, and the guiding groove 14 extends from one end of the brush roller to the other end, of course, the inner wall 16 of the roller brush body 1 may also be provided with a plurality of substantially parallel guiding grooves 14. The location of the fluid outlet 151 in the channel 14 and some related structures may be the same as in the above embodiments and will not be described in detail here.

Referring to fig. 20, the drum 1 is provided with a plurality of sets of fluid outlets 151, the fluid outlets 151 being arranged at intervals in the circumferential direction of the drum 1. Referring to the drawings, the embodiment shown in the drawings is two sets of fluid outlets 151, wherein each set of fluid outlets 151 extends in the axial direction of the brush roller, and the two sets of fluid outlets 151 are symmetrically disposed to opposite sides of the roller brush body 1 in the radial direction. With this arrangement, a relatively uniform distribution of fluid is possible. In order to make the fluid sprayed from the fluid distributor 66 more uniform, the fluid distributor 66 includes at least two sets of liquid outlets 621, and the at least two sets of liquid outlets 621 are spaced apart along the circumferential direction of the roller brush cylinder 1.

Referring to fig. 6, 7, 10 and 11, in some embodiments, the heating device remains stationary while the brush roll rotates, while the liquid outlet 621 of the heating device is in fluid communication with the fluid outlet 151 provided in the roller brush cylinder 1. Both ends of the heating device are attached to the first fixing portion 34 and the second fixing portion 41, respectively. Of course, the heating device may also be fixed in the first end cap 3 in the air. The heating device is stationary relative to the housing when the brush roll is rotated about its own axis. I.e. the heating means remains stationary during operation of the brush roll. An annular cavity is defined between the heating device and the roller brush cylinder 1. The heated fluid enters the annular cavity and is discharged from the fluid outlet 151 of the roller brush body 1. The roller brush cylinder 1 comprises at least one set of fluid outlets 15, and the at least one set of fluid outlets 15 are arranged at intervals along the axial direction of the brush roller. The spacing arrangement referred to herein may be that the line of the plurality of fluid outlets 151 is parallel to the rotational axis, or the line of the plurality of fluid outlets 151 is rotated around the brush roll, i.e., the plurality of fluid outlets 151 extend in a spiral shape along both the axial and circumferential directions of the brush roll.

Referring to fig. 23 and 24, fig. 23 is a schematic cross-sectional view of a drum in an axial direction in accordance with still another embodiment. FIG. 24 is a schematic cross-sectional view of a brush roll in an axial direction according to one embodiment. The direction of the arrows in the figure is the direction of fluid flow. In other embodiments, the heating device shown in fig. 23 may rotate along with the brush roller, and the heating device may heat the brush roller, and the heating device is disposed on the inner wall 16 of the roll brush body 1 to rotate along with the brush roller. The heating device is adhered or fixed to the inner wall 16 of the roller brush cylinder 1 by using an etching process. A fluid distributor 66 may also be provided in the receiving space or on the roller brush cartridge 1, the fluid distributor 66 serving to distribute fluid to the wiper 17 or the surface to be cleaned. In a further embodiment, the roller brush cylinder 1 is provided with a first fluid channel 19, and the inner wall 16 corresponding to the first fluid channel 19 is provided with a heating device. The heating device heats the fluid entering the first fluid passage 19 while heating the roller brush body 1. In this embodiment, the heating device may function to heat both the brush roller and the fluid. Fluid from the second fluid passage in the end cap may enter the first fluid passage directly.

Referring to fig. 24, in other embodiments, both ends of the heating device are respectively mounted to the first fixing portion 34 of the first end cap 3 and the second fixing portion 41 of the second end cap 4. The heating means follows the rotation of the brush roller when the brush roller rotates, the roll brush cylinder 1 is provided with a first fluid passage 19, and the second rotating portion 43 is provided with a second fluid passage 44 communicating with the first fluid passage 19. The liquid outlet 621 of the heating device is in fluid communication with the second fluid channel 44, and the heated fluid passes through the second fluid channel 44 and the first fluid channel 19 and then is discharged through the fluid outlet 151 disposed on the roller brush cylinder 1. In this embodiment, the heating device is mainly used for heating the fluid.

While embodiments of the invention 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 invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention 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

1. A surface cleaning apparatus comprising

The cleaning liquid supply system comprises a cleaning liquid tank and a supply pipeline connected with the cleaning liquid tank;

2. A surface cleaning apparatus as claimed in claim 1,

the liquid collection chamber is an annular groove extending along the circumferential direction of the brush roller, at least one flow blocking structure is arranged in the annular groove, and the flow blocking structure is used for blocking at least part of fluid from moving relative to the roller brush cylinder body so that at least part of fluid is gathered near the fluid outlet.

3. A surface cleaning apparatus as claimed in claim 1,

the rolling brush cylinder is provided with a plurality of groups of fluid outlets which are arranged at intervals along the circumferential direction of the rolling brush cylinder.

4. A surface cleaning apparatus as claimed in claim 1,

the fluid distributor comprises at least two groups of liquid outlets which are arranged at intervals along the circumferential direction of the rolling brush cylinder.

5. A surface cleaning apparatus as claimed in claim 1,

the fluid dispenser also comprises a heating element for heating the fluid, and the fluid dispenser is arranged on the heating element.

6. A surface cleaning apparatus, comprising

7. A surface cleaning apparatus as claimed in claim 6,

the diversion trench extends along the circumferential direction of the roller brush barrel, and the fluid outlet is arranged at the end part of the diversion trench.

8. A surface cleaning apparatus as claimed in claim 6,

the diversion trench extends along the circumferential direction and the axial direction of the rolling brush cylinder body simultaneously.

9. A surface cleaning apparatus as claimed in claim 8,

the diversion trench is spirally arranged on the inner wall of the rolling brush barrel.

10. A surface cleaning apparatus as claimed in claim 6,

the fluid dispenser further comprises a heating element for heating the fluid, and the fluid dispenser is arranged on the heating element.