CN209421834U - A kind of cleaning head - Google Patents

Abstract

The utility model provides a kind of cleaning head, its internal generation is by the extraneous air-flow for flowing to air-flow generating unit after being connected to air-flow generating unit comprising: shell, the suction channel limited by shell；Rear side brushroll chamber connected to the suction channel, the interior pivotable brush roll of setting of the brushroll chamber；The guide roller chamber that front side is connected to brushroll chamber, the intracavitary pivotable guide roller of setting of guide roller；Wherein, the shell further defines the first side channel and second side channel being connected to positioned at brush roll both ends with brushroll chamber；Suction channel includes horn mouth, and the opening amplitude of the bell-mouthed first side close to first side channel is greater than the opening amplitude close to the second side in second side channel.Optimize flow field by adjusting housing interior structure, so that cleaning head is kept optimum Working, and obtain ideal cleaning effect.

Description

A kind of cleaning head

Technical field

The utility model relates to cleaning heads, belong to cleaner field.

Background technique

Currently, various types of cleaning devices have been widely used in daily life, common cleaning device on the market, example Such as hand-held cleaners, increasingly it is familiar with for the majority of consumers, and since with light, handling good advantage becomes consumer Mainstream selection when selecting domestic vacuum cleaners.

In dust catcher, cleaning head is commonly used in contacting with clean surface is needed, and is cleaned to surface and receives foul After collection, foul is delivered to air-flow along air flow path by separative unit by suction channel and carries out carrying out purification separation and foul It collects.

Generally, the shell of cleaning head can limit the opening being located on the downside of cleaning head, and the opening is as suction channel Opening, foul enters suction channel by the opening, in order to obtain ideal working condition, opening and by clean surface Between need to keep air-tightness appropriate, i.e. the distance between control opening and surface to be cleaned or gap.By testing and making With data verification, if being opened on excessive by distance between clean surface, air-tightness is insufficient, can reduce suction capactity, Influence cleaning effect；And if opening and by clean surface too close to it will cause air-tightness is excessively high, opening is approximate complete Totally-enclosed, air and foul are difficult to enter suction channel, and thus will appear the dynamical element of air-flow generating unit for example Motor overload damages.

In addition, cleaning head on the market, which often configures to dial, stirs element in order to which foul is smoothly pumped to suction channel, such as The roller that can freely turn round makes the foul for being deposited in clean surface become loosely to be conducive to suction by agitation, can by cleaning The foul on surface is collected into suction channel as thoroughly as possible.Also, existing design can also be directed to different surfaces, such as The floor of smooth, hard and the soft and opposite carpet setting different type roller for having fluctuating carry out secondary.Certainly existing Design comes with some shortcomings, for example, it is desired to have the cleaning head of different rollers for different surface replacements, operation is made to become numerous It is trivial.

For this purpose, the prior art additionally provides the cleaning head with double roller, the cleaning on two kinds of surfaces is adapted to respectively, was operated Cheng Zhong, no replacement is required cleaning head, also, cooperate by one of roller the support construction of the formation of cleaning head support wheel, make Suitable gap is formed between opening and surface on the downside of cleaning head, keeps air-tightness appropriate.

So, although can solve the problems, such as to a certain extent brought by aforementioned deficiency, it is existing at present The cleaning head of double roller structure does not consider the flow field that each roller chamber of enclosure interior and suction channel is rationally arranged, can not most be managed The removal effect thought.

It should be noted that above content belongs to the technology category of cognition of inventor, the prior art is not necessarily constituted.

Summary of the invention

Utility model aims to solve the problems of prior arts to have by providing a kind of cleaning head The interior flow field of optimization, it can be ensured that ideal cleaning effect, and guarantee air-flow generating unit associated with cleaning head Stability.

The utility model is by adopting the following technical solutions to achieve above-mentioned purpose:

A kind of cleaning head, its internal generates flows to air-flow by the external world after the cleaning head is connected to air-flow generating unit The air-flow of unit characterized by comprising shell, the suction channel limited by shell；Rear side brush roll connected to the suction channel Chamber, the interior pivotable brush roll of setting of the brushroll chamber；The guide roller chamber that front side is connected to brushroll chamber, the intracavitary setting of guide roller Pivotable guide roller；

Wherein, it is logical to further define the first side channel being connected to positioned at brush roll both ends with brushroll chamber and second side for the shell Road；

Suction channel includes horn mouth, and the opening amplitude of the bell-mouthed first side close to first side channel is big Opening amplitude in the second side close to second side channel.

In a preferred embodiment, the front side of the front side wall and brush roll of the brushroll chamber limits first area, the brush roll The rear wall of chamber and the rear side of brush roll limit second area, the first side channel and second side channel and the brushroll chamber Communicating position be respectively positioned on the first area.

In a preferred embodiment, the axis direction in the first side channel is pointed generally in horn mouth and with described first Side is substantially parallel；The axis direction in the second side channel is substantially parallel with brush roll.(there are also place's micronic dusts at cleaning edge Effect, in wall cleaning)

In a preferred embodiment, the guide roller is in the front of the brush roll and is spaced apart with the brush roll, with Air duct in roller is limited between the low portion and the guide roller of the brush roll, so that when cleaning head connection air-flow hair Raw unit is on by clean surface in use, the guide roller at least partly closes the front side of the downside of the shell simultaneously And it will be from being guided by the dirty particles on clean surface to brushroll chamber.

In a preferred embodiment, the air velocity in the first side channel and second side channel is not less than brush roll 5 times of air velocity in chamber.

It in a preferred embodiment, further include the guide roller cleaning for being set to the rear side of guide roller chamber and being contacted with front guide roller Portion, the guide roller cleaning section include the comb teeth of specification arrangement, and the upper end of each comb teeth forms inclined contact surface, and by being somebody's turn to do The lower part of inclination contact face contact guide roller or side rear lower.

In a preferred embodiment, the lower end of each comb teeth forms guide surface, and the guide surface and level are in less than 45 ° Angle, and the bottom of each comb teeth at a distance from the base contact surface of guide roller be not less than 3mm.

In a preferred embodiment, the brush roll surface is equipped with the roller brush group of helical arrangement, including left-handed roller brush group and the right side Roller brush group is revolved, the left-handed roller brush group and dextrorotation roller brush group are intersected in close to the bell-mouthed position.

In a preferred embodiment, the brush roll surface forms spiral groove, and cooperation brushroll chamber constitutes helical duct, packet Left-handed channel section and dextrorotation channel section are included, the left-handed channel section and dextrorotation channel section are intersected in close to the bell-mouthed position It sets.

In a preferred embodiment, cavity wall is formed with the bell-mouthed strip-shaped grooves of connection, the item on rear side of the brushroll chamber Shape groove is located adjacent at brushroll chamber lower openings.

By the implementation of device described above, the structure of adjustment suction system air-tightness is provided with lateral channels, The air-flow that two sides enter is supplemented, it, can also suction cleaning head side to a certain extent while protection air-flow generating unit Tiny foul, in addition, by adjusting horn mouth combine cooperation lateral channels, optimize brushroll chamber in process, it is unfavorable to avoid the occurrence of Slough, reduce brushroll chamber in cleaning, cleaning dead angle, it is ensured that the working condition of cleaning head.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 depicts the structural schematic diagram of cleaning head in an embodiment of the present invention, the schematic diagram present from cleaning The structure of head bottom observation；

Fig. 2 depicts cleaning head interior flow field in an embodiment of the present invention and moves towards schematic diagram；

The cleaning head interior flow field that Fig. 3 depicts prior art use moves towards schematic diagram；

Fig. 4 depicts in an embodiment of the present invention guide roller, brush roll rotation in cleaning head internal structure and the course of work To with air flow direction schematic diagram；

Fig. 5 depicts the structural schematic diagram of brush roll in an embodiment of the present invention；

Fig. 6 depicts the structural schematic diagram of brushroll chamber rear side sidewall and horn mouth inner wall in an embodiment of the present invention；

Fig. 7 depicts the structural schematic diagram of guide roller cleaning section in an embodiment of the present invention；

Fig. 8 depicts the structural schematic diagram of cleaning head internal drive and drive line in an embodiment of the present invention, figure In, the roller brush on brush roll surface is omitted, specific roller brush distribution can refer to Fig. 5.

Specific embodiment

Embodiment provided by one aspect according to the present utility model, the cleaning head with front guide roller can be used as Auxiliary (can specifically manage foul capture in the air-flow that the opening being flowed on the downside in cleaning head enters suction channel Foul is is transported to brushroll chamber by guide roller by solution, then is cleaned and collected to horn mouth by brush roll, with the opening from downside into Enter air-flow and enter suction channel, specific structure and the course of work can refer to embodiment disclosed below).Guide roller be usually located at Opening (can be regarded as the lower section that opening is located at brushroll chamber) front that is adjacent and being located at the opening of suction channel, so as to guide roller It is engaged with clast and keeps clast mobile towards the opening of suction channel.

Cooperate guide roller, before double dial of cleaning head setting stirs the brush roll that element also sets up rotation, and guide roller is located at brush roll Side.Guide roller can have than brush roll smaller diameter and the settable cleaning element more soft than brush roll.Guide roller can also have There are bottom part and top section, which is exposed to the air flow path for being connected to suction channel, which then may be used Selection is set as being not exposed to be connected to the air flow path of suction channel.In other embodiments, guide roller is relative to cleaning Head can carry out floating and/or capable of being adjusted relative to brush roll.Certainly, these structural adjustments are not that the utility model is of interest Emphasis, those skilled in the art can understand dependency structure by other patent applications or other prior arts of applicant's proposition Working principle.

It should be noted that although the utility model discloses the specific embodiment of the cleaning head with guide roller, The other embodiments of cleaning head with guide roller are still within the scope of this disclosure.

Cleaning head with guide roller can be used in different types of vacuum cleaner comprising but be not limited to: " head Vacuum cleaner, upright vacuum cleaner, the box-like vacuum cleaner, bar type of full receiving (all in the head) " type Vacuum cleaner, robotic vacuum cleaner and Central Vacuum dust pelletizing system.Cleaning head with guide roller, which may also include, to be in Part or brush roll are stirred in removable the dialling stirred in part room of dialling that can be opened, and similarly, guide roller is also possible to removable.

In addition, " cleaning head ", which refers to, to be configured to contact with by clean surface as used in the present invention Equipment, which is used for by using suction air flow, dials to stir or combinations thereof and clean to surface.Cleaning head can lead to It crosses swivel joint and pivotly or is steerably attached to hard tube, the hard tube is for controlling cleaning head and may include motor-driven Attachment and fixation cleaning head.Cleaning head can also be operated under the case where not using hard tube or handle.Such as at this Used in utility model, such as used in the present invention, " closing ", " sealing " or " closed ", which refers to, to be prevented greatly The air of amount passes through suction channel but does not require gas-tight seal.As used in the present invention, " dial and stir part " is It refers to that surface is carried out to dial to stir to help to make any element, the component that clast is moved in the suction air flow in cleaning head Or structure.As used in the present invention, " softness " and " more soft " refers to the cleaning element in front guide roller, ratio The submissiveer or more flexible feature of another cleaning element.

As used in the present invention, term " air flow path " refers to when air is drawn into due to suction When, which flow to path employed in suction.As used in the present invention, term " top " and " lower section " are It is used relative to orientation of the cleaning head on surface to be cleaned, and term " preceding " and " rear " they are relative to user in institute Push the direction (that is, from back to front) of cleaning head come what is used on clean surface.As used in the present invention, side While being cleaning head corresponding to guide pipe and/or the two sides at brush roll both ends.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

Also, in the present invention unless specifically defined or limited otherwise, fisrt feature in second feature "upper" or "lower" can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.In this theory In the description of bright book, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " Deng description to mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in this practical new In at least one embodiment or example of type.In the present specification, schematic expression of the above terms are necessarily directed to Identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more realities Applying can be combined in any suitable manner in example or example.

In order to become apparent from, specifically illustrate the utility model general idea, with reference to the accompanying drawings of the specification with exemplary Mode is described in detail.

As shown in Figure 1, in one embodiment, providing a kind of cleaning head 100, which is connected to air-flow Its internal generation is flowed to the air-flow of air-flow generating unit by the external world after unit (not shown), and with specific reference to Fig. 1, cleaning head 100 is wrapped It includes: shell, the suction channel 400 limited by shell；Rear side brushroll chamber 200 connected to the suction channel, the interior setting of brushroll chamber 200 Pivotable brush roll 600；The guide roller chamber 300 that front side is connected to brushroll chamber 200, the interior setting of guide roller chamber 300 is pivotable to be led To roller 500；Wherein, shell further defines the first side channel 710 and second being connected to positioned at 600 both ends of brush roll with brushroll chamber 200 Lateral channels 720；Suction channel 400 includes horn mouth 410, accordingly, in conjunction with Fig. 2, horn mouth 410 close to first side The opening amplitude of the first side in channel 710 is greater than the opening amplitude close to the second side in second side channel 420.

It has been observed that it is preferred that the cleaning head for stirring element with double groups needs to be arranged lateral airflow channel supplemental air flow.In conjunction with Fig. 2, the present embodiment make the supplemental air flow of side from entering after brushroll chamber with lesser deflection by the direction of setting lateral access Angle flows into horn mouth, and the other side then flows into horn mouth with biggish deflection angle (setting near normal), such as arrow in figure The schematic diagram for the air velocity distribution flowing that head can be painted, so arranges, air-flow can be allowed to avoid the occurrence of dead angle, liquidate and (bring energy Loss), the range of slough is reduced, cleaning efficiency is improved.

The effect of guide roller 500 mainly enables by engaging in internal strife and squeezing the biggish foul made positioned at 100 front end of cleaning head It enough can smoothly enter into brushroll chamber 200, in order to realize that this cleaning purpose, 600 approximation of brush roll close the front side of brushroll chamber, that is, only There is less air-flow to enter brushroll chamber from preceding effluent, is easy to form " slough " in the front side of brushroll chamber, what brush roll was difficult to be swept into Dirty particles will be deposited in this position, it is more difficult to clear up.That is, if according to habitual thinking using as shown in Figure 3 symmetrical Structure then can form slough at the region S that dotted line frame is selected in figure, due to almost only having minimal amount of air-flow can be from front end Guide roller chamber flows into brushroll chamber, this part can put aside dirty particles, it is difficult to be sucked up to suction channel, will increase and clear up and safeguard The workload of brushroll chamber, and will affect cleaning effect.

It is set as unsymmetric structure by horn mouth 410, can allow air-flow sufficiently in brushroll chamber 200, especially brushroll chamber 200 first half (lacking the part that front side enters air-flow) flowing, reduces in the slough of first half, has avoided guide roller conveying Foul deposition here.

In particularly embodiment, second side relative to suction channel axis opening angle be not more than 30 °, it is excellent Choosing is less than 10 °, and first side is at least 25 ° or more, preferably 45 ° relative to the opening angle of suction channel axis.This The determination of angle of release degree is based primarily upon first side and second side bus on the outermost side or its projection and suction channel axis The angle that line limits.Such as bus is curve, then fixed with the tangential direction of the bus or its projection and suction channel axis Angle.In addition, the structure of cooperation horn mouth 410, is arranged the trend of two lateral channels, the airflow channel that can avoid two sides is opposite It opens up, prevents that a degree of counteracting that liquidates can be generated when entering suction channel, reduce the flow velocity of air-flow entirety.Pass through change One side runner layout angle, stream field advanced optimize, and reduce energy loss.

In more preferable and more specific embodiment, such as Fig. 1 and Fig. 2,200 front side wall of brushroll chamber and before brush roll 600 Lateral confinement determines first area, and 200 rear wall of brushroll chamber and brush roll 600 rear side limits second area, such as schemes, first side channel 710 are respectively positioned on first area with second side channel 720 and the communicating position of brushroll chamber 600.The structure that this embodiment provides is matched The airflow direction that the structural adjustment lateral channels of horn mouth 410 limit is closed, stream field, which realizes, to be advanced optimized.

And as above-described embodiment, further preferably implementation, the axis direction in first side channel 710 are generally referred to It is to horn mouth 410 and substantially parallel with first side；Then direction is substantially parallel with brush roll for the axis in second side channel 720.Together Sample is the further flow fieldoptimization carried out on the basis of aforementioned techniques design.The direction setting of this lateral channels is also advantageous simultaneously It is micro- at suction cleaning head edge (corresponding wall and floor surface angle) when being cleaned on the surface to close wall Dirt.

In other preferred embodiments, such as Fig. 4, guide roller 500 is in the front of brush roll 600 and between brush roll 600 It separates, to limit air duct in roller between the low portion of brush roll 600 and guide roller 500, so that when cleaning head 100 connects Before air-flow generating unit is connect on by clean Surface L in use, guide roller 500 at least partly closes the downside of shell Side and will be from being guided by the dirty particles of clean Surface L to brushroll chamber 200.

Under the action of guide roller 500, cooperation brush roll 600 realizes the cleaning of front side foul, avoids the occurrence of " blizzard " phenomenon, Just because of the closing of guide roller 500, the cooperation for adjusting the direction of lateral channel with bell-mouthed opening amplitude is played Important function, if air directly can flow into brushroll chamber 200 from front side, the gas field improvement of the structure, is not most Preferably.But correspondingly, can equally reduce suction if front end degree of closure is not high, influence cleaning effect.So guiding Roller also acts as the effect of air flow path on front side of closing brushroll chamber while playing and dialling and stir function.

In other preferred embodiments, the air velocity in first side channel and second side channel is not less than brush roll 5 times of air velocity in chamber.

The sectional dimension of lateral channels is set as to ensure higher flow velocity in lateral channels having a size of small compared with brushroll chamber, It has the advantage that are as follows: gas shock can be increased first, prevent lateral channels from blocking；In addition, flow velocity change dramatically is easy to produce The flow field of divergent trend is conducive to eliminate dead angle；Whole rate of pressurization finally can be improved, it is ensured that suction.In addition, being inhaled there are also certain Dirt effect, can clear up a small amount of foul of dust catcher side.

It further include the rear side and guide roller 500 for being set to guide roller chamber 300 in the preferred embodiment that Fig. 4 and Fig. 7 are painted The guide roller cleaning section 800 of contact, guide roller cleaning section 800 include the comb teeth 820 of specification arrangement and the branch for supporting comb teeth 820 Support part 810, the upper end of each comb teeth 820 form inclined contact surface, and by the lower part of the inclination contact face contact guide roller 500 or Side rear lower.By comb structure, winding can be cleared up in time or is adhered to the foul of guiding roller surface, guarantees best effort shape State.

In addition, the lower end of each comb teeth 820 forms guide surface, guide surface and the horizontal angle in less than 45 °, and each comb teeth (cleaning head contacts the surface to be cleaned when being placed on the surface to be cleaned to the base contact surface of 820 bottom and guide roller 500 first Bottom surface) distance be not less than 3mm.There is this guide surface certain guiding role can convey to transition foul to brushroll chamber 200, also, a certain distance is set, avoid its bottom from scratching by clean surface.

With reference to the structure that Fig. 5 is painted, in other preferred embodiments, brush roll 600 includes the body of roll 610,610 surface of the body of roll Roller brush group 620 equipped with helical arrangement, including left-handed roller brush group and dextrorotation roller brush group, in conjunction with Fig. 1, left-handed roller brush group and dextrorotation roller Brush group is intersected in close to the position of horn mouth 410.

Cooperate air velocity distribution above-mentioned to be distributed, foul is cleaned with spiral-distributed roller brush group and is pooled to horn mouth, is taken out It inhales, can be improved cleaning efficiency.

Furthermore it is preferred that the body surface of brush roll is set as being formed with spiral groove, it is logical that cooperation brushroll chamber 200 constitutes spiral Road, including left-handed channel section and dextrorotation channel section, the left-handed channel section and dextrorotation channel section are equally intersected in close to horn mouth 410 position.This helical duct has both the work that delivery air plays flow-disturbing, diffusing to horn mouth and to a certain extent simultaneously With dead zone can be reduced.

In addition, advanced optimizing as convection current field structure, with reference to Fig. 6,200 rear side cavity wall of brushroll chamber may also be configured to shape At there is the bell-mouthed strip-shaped grooves 210 of connection, strip-shaped grooves 210 are located adjacent at brushroll chamber lower openings.Illustrate in conjunction with Fig. 4 The direction of rotation of guide roller 500 and brush roll 600, the position finally collected of foul cleaned by brush roll in the downside of horn mouth, Groove is set in the lower part of brushroll chamber, increases brush roll in the spacing of brushroll chamber, can avoid roller brush and carry foul in brushroll chamber Wall contacts frequent occurrence " hard friction ".

In addition, preferably, the depth of strip-shaped grooves becomes larger with it close to bell-mouthed degree.It is at horn mouth The center that foul collects most easily occurs hard grind and wipes, therefore deeper groove is arranged, also, the groove that constant slope is presented also has The guiding role for cooperating air velocity distribution, is conducive to foul and is pooled to horn mouth, and be finally sucked.

In addition, in order to ensure air-tightness, such as Fig. 1 and Fig. 4, further include along the open edge of brushroll chamber the left and right sides and The sealing strip 900 of rear side setting.Sealing strip effect can prevent air-flow from entering brushroll chamber from rear side, upset suction channel horn mouth Flow field.Entering air-flow in lateral channels, it is hoped that there will be flow tendencies always, but the turbulent flow with certain divergent trend, have avoided There is dead angle, but by arranging, the flow field expectation in horn mouth is more stable, needs to avoid or reduce the appearance of sinuous flow.This Outside, whole rate of pressurization equally can be improved in sealing strip, guarantees suction.

Sealing strip 900 includes the bristle to contact with by clean surface.The composition of sealing strip is set, is realized by bristle Cleaning effect, leaves particle after cleaning cleaning, avoids leaving not clean enough trace.

The other side of the utility model is rationally to set to the optimal setting thinking with double cleaning heads dialled and stir element The driving drive mechanism for setting guide roller and brush roll adapts to same cleaning head and adapts to different working modes, i.e., to table as inhomogeneity Face carries out clean demand.

The structure as depicted in Fig. 1 and Fig. 8 provides a kind of cleaning head 100 in a specific embodiment, packet It includes: shell, the suction channel 400 limited by shell；Rear side brushroll chamber 200 connected to the suction channel, the interior setting of brushroll chamber 200 Pivotable brush roll 600；The guide roller chamber 300 that front side is connected to brushroll chamber 200, the interior setting of guide roller chamber 300 is pivotable to be led To roller 500；Specifically, cleaning head 100 has multiple-working mode, brush roll 500 and guide roller 600 are all had and a variety of works The corresponding multiple rotation speeds of operation mode.

The prior art mainly passes through replacement cleaning head and switches different operating modes, and has the double groups of cleanings for stirring element In head, it may select to adjust the two groups of height for stirring element to adapt to different clean surfaces, in different operating modes Under, selection allows different dial to stir element and contact with surface respectively, these implementations without accumulate the workload that can all increase operation or Person increases clean complex degree of structure.For example, the prior art is using the relocatable mode of guide roller height is made, cooperation is supported Wheel, realizes the cleaning on floor and carpet respectively, but the complex degree of structure of cleaning head can in this way improved, and guide roller is lifted, When carrying out the cleaning of carpet, if having cleaned the floating that carpet does not restore guide roller, it is likely that brush roll occur and directly contact The case where floor.

And cleaning head provided by the utility model, realize the cleaning of both of which by cleaning head, and by brush roll and Guide roller is set as Synchronous Transmission and guide roller linear velocity is lower than brush roll linear velocity, for example, in optional example in both modes Such as floor cleaning mode and carpet cleaning mode, different role is played by brush roll by adjusting revolving speed.

Under floor mode, foul on front side of cleaning head is mainly imported into rear side brushroll chamber, it is logical to be pooled to suction by the cleaning of roller brush Road, lower guide roller revolving speed avoid the collecting dirt between guide roller chamber and brushroll chamber, and floor often smoother, there is one A little big particle fouls are possible to be knocked away in the case where guide roller revolving speed is high, are unfavorable for cleaning, therefore forming velocity step ladder is It realizes the clean important guarantee of double mode, only synchronism switching brush roll revolving speed is also supported to adapt to the demand of different cleaning mode.And When cleaning carpet, as long as guide roller is responsible for conveying carpet surface and accumulates foul, brush roll is responsible for clearing up carpet deep layer, with higher turn Speed can have higher cleaning effect.

By two kinds of pivot speeds, the cleaning of both of which can be realized, when cleaning guide roller and brush roll can have carpet There is higher revolving speed carpet that there is rougher surface, higher speed rotation is also not easy the case where knocking foul away occur, and brush roll It then can more effectively clean carpet.When floor-cleaning, cleaning difficulty is reduced, and the synchronous revolving speed for reducing guide roller and brush roll avoids hitting Fly dirty particles, and sometimes brush roll may be involved in some longer linear sundries, brush roll speed is higher may to injure floor Surface.

It of courses, it is revealed that multiple-working mode is not limited to the example above mode, it is also possible to be directed to by adjusting revolving speed Other surfaces are cleaned, for example, for the bed surface with surface nature between floor and carpet, allow guiding by setting Revolving speed of the revolving speed of roller and brush roll between corresponding floor cleaning mode and carpet cleaning mode.It, can be in terms of some Think that surface is more smooth, then suitably reduces guide roller and brush roll revolving speed, surface is more coarse, in irregular shape, resistance is big, then suitably Improve guide roller and brush roll revolving speed.

Additionally, it is preferred that embodiment in, cleaning head under different working modes, the revolving speed and outer diameter of guide roller and brush roll Size meets, and the ratio between the outer of guide roller and the linear velocity of outer of the brush roll are fixed always, and the line of the outer of guide roller Speed is consistently lower than the linear velocity of the outer of the brush roll.With reference to Fig. 8, by the drive mechanism illustrated in figure, guide roller and brush The revolving speed synchronism switching of roller, less driving output unit, and reduce control element and route are advantageously implemented that " key is cut It changes ".

It is of course also possible to use the mode more driven, respectively drives guide roller by different driving units and brush roll rotates, Such design is suitable for it is expected the cleaning head of the cleaning device using intelligentized control method.

More specifically in embodiment, the ratio range of the outer diameter of guide roller outer diameter and brush roll is 0.3 to 0.8.Guide roller is small It is more conducive to that guide roller linear velocity is made to be less than brush roll in the outer diameter of brush roll, gear unit is made to may be configured as that there is lesser transmission ratio, Reduce the size of drive mechanism.

With reference to Fig. 4, in preferred embodiment, the bottom of guide roller 500 has the first contact surface, the bottom of brush roll 600 Portion has the second contact surface, and the first contact surface is being vertically higher than the second contact surface.The ground of two rollers forms and falls Difference can be avoided brush roll 600 and directly touch floor, injure floor surface, carpet is more soft due to surface when cleaning floor It is soft, it can permit and contacted with roller brush 600, and since its contact causes resistance to increase, cooperation improves ground revolving speed, can guarantee to manage Think ground cleaning effect.

Specifically, it is preferable that the drop of ground, the first contact surface and the second contact surface is 2mm to 8mm.In this range energy Enough guarantee the cleaning that expectation can be obtained under both of which and the effect for protecting floor.

In more specifically embodiment, with reference to Fig. 8, the driving system of brush roll 600 and guide roller 500 includes driving unit 1010 such as motors connect the first gear unit 1020 of brush roll 600 and driving unit 1010, connect brush roll 600 and guide roller 500 the second gear unit 1030, the first gear unit 1020 and the second gear unit 1030 are respectively arranged in the brush roll Two sides.Gear unit is arranged in two sides as a result, can balanced torque, when being cleaned, rotation cleaning head direction can be allowed more to save Power.

In a preferred embodiment, the first gear unit 1020 and the second gear unit 1030 are gear synchronous V belt translation Structure.Gear synchronous band is more stable and transmission is accurate, avoids the occurrence of skidding, makes the revolving speed of guide roller and brush roll steady, will not go out Existing deviation, guarantees optimal cleaning effect.

In the other side of the utility model, cleaning head described by above-described embodiment should all be used in and realize surface cleaning Cleaning device, in the particular embodiment, providing cleaning device includes cleaning head above-mentioned, further includes connecting holding for cleaning head Portion, hand-held part include the adjusting unit of the rotation speed of separative unit, air-flow generating unit and switching guide roller and brush roll.Cleaning Two kinds of operating modes of head need to switch over by adjusting unit, and will adjust unit and be arranged in hand-held part, can be convenient Carry out operating mode switching.

In addition, hand-held part is additionally provided with operating mode indicating unit, to show the rotation speed of the guide roller and brush roll.Shape State instruction and handover operation are realized by hand-held part, and operation convenience can be improved, reduce the possibility of maloperation.

All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.

The above description is only the embodiments of the present invention, is not intended to limit the utility model.For this field For technical staff, various modifications and changes may be made to the present invention.All institutes within the spirit and principle of the utility model Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of the claims of the utility model.

Claims (10)

1. a kind of cleaning head, its internal generates flows to air-flow generation list by the external world after the cleaning head is connected to air-flow generating unit The air-flow of member characterized by comprising shell, the suction channel limited by shell；Rear side brush roll connected to the suction channel Chamber, the interior pivotable brush roll of setting of the brushroll chamber；The guide roller chamber that front side is connected to brushroll chamber, the intracavitary setting of guide roller Pivotable guide roller；

Wherein, the shell further defines the first side channel and second side channel being connected to positioned at brush roll both ends with brushroll chamber；

Suction channel includes horn mouth, and the opening amplitude of the bell-mouthed first side close to first side channel, which is greater than, to be connect The opening amplitude of the second side in nearly second side channel.

2. cleaning head as described in claim 1, which is characterized in that the front side of the front side wall of the brushroll chamber and brush roll limits the One region, the rear wall of the brushroll chamber and the rear side of brush roll limit second area, the first side channel and second side The communicating position of channel and the brushroll chamber is respectively positioned on the first area.

3. cleaning head as claimed in claim 2, which is characterized in that the axis direction in the first side channel is pointed generally in loudspeaker Mouth is simultaneously substantially parallel with the first side；The axis direction in the second side channel is substantially parallel with brush roll.

4. cleaning head as claimed in claim 1 or 2, which is characterized in that the guide roller be in the front of the brush roll and It is spaced apart with the brush roll, to limit air duct in roller between the low portion of the brush roll and the guide roller, makes Proper cleaning head connection air-flow generating unit is on by clean surface in use, described in the guide roller at least partly closes The front side of the downside of shell and will be from being guided by the dirty particles on clean surface to brushroll chamber.

5. cleaning head as claimed in claim 1 or 2, which is characterized in that in the first side channel and second side channel Air velocity not less than 5 times of air velocity in brushroll chamber.

6. cleaning head as described in claim 1, which is characterized in that further include the rear side and front guide roller for being set to guide roller chamber The guide roller cleaning section of contact, the guide roller cleaning section include the comb teeth of specification arrangement, and the upper end of each comb teeth, which is formed, inclines Sloped contact surface, and pass through the lower part of the inclination contact face contact guide roller or side rear lower.

7. cleaning head as claimed in claim 6, which is characterized in that the lower end of each comb teeth forms guide surface, the guiding Face and the horizontal angle in less than 45 °, and the bottom of each comb teeth is not less than at a distance from the base contact surface of guide roller 3mm。

8. cleaning head as claimed in claim 1 or 2, which is characterized in that the brush roll surface is equipped with the roller brush group of helical arrangement, Including left-handed roller brush group and dextrorotation roller brush group, the left-handed roller brush group and dextrorotation roller brush group are intersected in close to the bell-mouthed position It sets.

9. cleaning head as claimed in claim 8, which is characterized in that the brush roll surface forms spiral groove, cooperates brush roll Chamber constitutes helical duct, including left-handed channel section and dextrorotation channel section, the left-handed channel section and dextrorotation channel section are intersected in and connect The nearly bell-mouthed position.

10. cleaning head as claimed in claim 8, which is characterized in that cavity wall is formed with connection horn mouth on rear side of the brushroll chamber Strip-shaped grooves, the strip-shaped grooves are located adjacent at brushroll chamber lower openings.