WO2016000558A1 - 吸尘器 - Google Patents

吸尘器 Download PDF

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Publication number
WO2016000558A1
WO2016000558A1 PCT/CN2015/082352 CN2015082352W WO2016000558A1 WO 2016000558 A1 WO2016000558 A1 WO 2016000558A1 CN 2015082352 W CN2015082352 W CN 2015082352W WO 2016000558 A1 WO2016000558 A1 WO 2016000558A1
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WO
WIPO (PCT)
Prior art keywords
filter
airflow
buffer
vacuum cleaner
inlet
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Application number
PCT/CN2015/082352
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English (en)
French (fr)
Inventor
刘海平
夏亮
王波
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天佑电器（苏州）有限公司
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Application filed by 天佑电器（苏州）有限公司 filed Critical 天佑电器（苏州）有限公司
Publication of WO2016000558A1 publication Critical patent/WO2016000558A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/20—Means for cleaning filters

Definitions

  • the invention relates to a vacuum cleaner.
  • the dust cleaning of the filter is carried out by adopting a dust cleaning structure, and the cleaning method can be roughly divided into a contact type and a non-contact type, and the contact type generally has a manual scraping strip, a manual brush strip, a rotating brush strip and the like.
  • the non-contact type has an inflation method and a blowing method.
  • the inflation method instantly balances the pressure difference between the inside and the outside of the filter, and the dust falls by its own gravity; the blowing method has an external direct blowing of dust, and a reverse blowing from the inside. .
  • the above structure has high manufacturing cost, some reliability is poor, and some cleaning effects are not good, so a filter cleaning mechanism that is simpler and more reliable and has a good cleaning effect is needed.
  • the present invention provides a vacuum cleaner comprising a head assembly, a dust bucket and a filter assembly, the filter assembly being disposed under the head assembly, the dust bucket and the head assembly being separable or matched
  • the airflow inlet is provided on the head assembly
  • the filter assembly includes a bracket and a filter, the filter is sleeved on the outer side of the bracket, and an airflow buffer is arranged between the bracket and the filter, and the airflow buffer has a buffer zone.
  • An inlet and a buffer outlet the buffer inlet being in communication with or disconnected from a bypass passage within the handpiece assembly, the buffer outlet being in communication with the gas flow inlet.
  • the airflow buffer is provided with a plurality of airflow channels, and the airflow channel surrounds the outside of the bracket.
  • the bracket is provided with a plurality of partitions, and an air flow passage is formed between the adjacent partitions.
  • the filter assembly includes an air passage, and the air flow passages are connected by an air passage.
  • the filter comprises a pleated filter portion, the air passage being a gap between the inner surfaces of the filter portion.
  • the dust bucket is provided with an air inlet, and the air inlet is provided with a control valve.
  • the buffer inlet and the buffer outlet are disposed on the bracket.
  • the bracket has an upper edge and a lower edge, and the airflow buffer is located between the upper edge and the lower edge.
  • the buffer inlet is disposed at the upper edge, and the buffer outlet is disposed at the lower edge.
  • the airpiece channel is disposed in the airpiece assembly, and the bypass channel is in communication with the air outlet air duct.
  • the present invention prolongs the time for cleaning the airflow in the filter assembly by providing an airflow buffer in the filter assembly, so that the cleaning airflow has a certain diffusion inside the filter, and does not directly return to the filter.
  • the motor reduces the pressure difference between the inside and the outside of the filter, and the cleaning effect is better, and the structure is simple and the manufacturing cost is low.
  • FIG. 1 is a cross-sectional view showing a vacuum cleaner according to a first embodiment of the present invention.
  • Fig. 2 is an exploded view of the cleaner according to the first embodiment of the present invention.
  • Figure 3 is a cross-sectional view showing a vacuum cleaner filter assembly in accordance with a first embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing a vacuum cleaner according to a second embodiment of the present invention.
  • Figure 5 is another cross-sectional view of the vacuum cleaner of the second embodiment of the present invention.
  • Figure 6 is a schematic illustration of a stent structure in accordance with an embodiment of the present invention.
  • a vacuum cleaner includes a head assembly 5, an air inlet 6, a dust bucket 7, and a filter assembly.
  • the head assembly 5 is disposed above the dust bucket 7, and the head assembly 5 is provided with a motor 51 that drives the impeller 54 to draw airflow to draw external dust into the interior of the cleaner, the drive impeller 54 being located in the impeller chamber 541.
  • the filter assembly includes a filter 8 and a bracket 9. When the vacuum cleaner is in operation, the airflow enters the dust bucket through the air inlet 6 on the dust bucket 7, and the dust contained in the airflow is filtered through the filter 8, and then the airflow passes through the nose.
  • the airflow inlet 55 below the assembly 5 enters the air duct within the nose assembly 5.
  • the bracket 9 is mounted below the head assembly 5, and the filter 8 is sleeved outside the bracket 9.
  • An air flow buffer 98 is provided between the inner wall 81 of the filter and the side wall 94 of the bracket 9 between the upper edge 4 and the lower edge 3.
  • a plurality of partitions 93 are also provided on the side wall 94 of the bracket 9, and the partition 93 divides the air flow buffer 98 into a plurality of air flow passages 981.
  • the partition 93 is circumferentially disposed on the side wall 94 of the filter 8 and is in close contact with the side wall 94, and the air flow can flow around the bracket in the air flow passage 981.
  • a bypass passage 56 is disposed in the head assembly 5, and communicates with the air outlet passage of the vacuum cleaner.
  • the air outlet passage communicates with the outside atmosphere of the vacuum cleaner to discharge the airflow in the vacuum cleaner to the vacuum cleaner.
  • the bypass passage and the air flow buffer 98 can be connected or disconnected by a valve 52.
  • the valve 52 is a pivotable valve that can open or close the buffer inlet 53.
  • the valve 52 can be controlled in a certain manner. For example, by setting a linkage mechanism, an operating lever is arranged outside the vacuum cleaner, and the user controls the valve opening using the operating lever or It can also be set as an electromagnetic valve, and the user can control the electromagnetic valve to be closed or opened by a button.
  • an operating lever is arranged outside the vacuum cleaner, and the user controls the valve opening using the operating lever or It can also be set as an electromagnetic valve, and the user can control the electromagnetic valve to be closed or opened by a button.
  • the filter assembly further includes a water blocking cup 91 located inside the bracket 9 when the water sucked by the vacuum cleaner reaches the position of the water receiving cup, The water-repellent cup floats upward, and as the water level rises, the water-repellent cup floats up to the airflow inlet 55, closing the airflow inlet, thereby preventing water from entering the head assembly and damaging the vacuum cleaner.
  • the filter 8 includes an upper end surface 82 and a lower end surface 84.
  • the upper and lower end surfaces are between the filter portions 83.
  • the filter portion 83 is substantially cylindrical, and the filter 8 may be a HEPA filter. Since the filter portion 83 is folded by the paper filter material, the cross section of the filter portion 83 is in the form of a wrinkle, and the contact area between the airflow and the filter portion is increased.
  • the filter portion 83 has a vertical direction air passage 831.
  • the air passage 831 is constituted by a gap between the inner surfaces 832 of the filter portion 83, so that the plurality of air passages 831 surround the air flow buffer, so that the air cleaning is performed.
  • Airflow flows from the upper portion of the airflow buffer to the lower portion of the airflow buffer through air passage 831.
  • An air flow passage 981 is formed between the inner wall 81 of the filter and the side wall 94 of the bracket 9, and the air flow passages communicate with each other through the air passage 831.
  • the valve 52 is opened and the bypass passage 56 is in communication with the flow buffer 98. Since the motor continuously draws gas within the filter assembly, the air pressure within the filter assembly is lower than the air pressure in the bypass passage 56, and the air flow in the bypass passage 56 enters the air flow buffer 98, which flows around the support along the air flow passage 981. (The flow direction of the air flow is indicated by the arrow in Fig.
  • the buffer outlet 99 is disposed below the lower edge 3 of the bracket.
  • the airflow buffer 98 delays the passage time of the airflow inside the filter assembly, so that the pressure difference between the inner and outer walls of the filter is lowered, so that the dust attached to the outside of the filter is separated from the filter and falls into the dustbin 7.
  • FIG. 4 and FIG. 5 Another embodiment of the present invention is shown in FIG. 4 and FIG. 5. This embodiment is substantially the same as the foregoing embodiment, and some features will be further described below.
  • the cleaner is provided with a cleaning control assembly 1', the cleaning control assembly includes an operating lever 13', and the operating lever 13' is inserted into the head assembly 5'.
  • the upper end of the operating lever 13' is provided with a pressing portion 11', and a return spring 12' is provided between the pressing portion and the outer casing of the head unit, and the return spring is sleeved outside the operating lever 13'.
  • the lower end of the operating lever 13' is provided with a contact portion 14' which is substantially hemispherical.
  • the vacuum cleaner is provided with a valve 52', and the valve 52' includes a baffle 522' and a control plate 521'. And a rotating shaft 523', the baffle is used to close the buffer inlet 53'.
  • the baffle 522' forms a certain angle with the control plate 521', and both the control plate and the baffle are rotatable about the rotating shaft 523'.
  • a control valve 61' is provided on the air inlet 6' of the vacuum cleaner drum, and when the filter is cleaned, the control valve 61' can close the air inlet 6' for a better cleaning effect.
  • the external airflow enters the interior of the cleaner through the air inlet 6', the airflow passes through the filter into the head assembly, and then exits the vacuum cleaner, as shown by the direction of the arrow in Fig. 4 as the flow direction of the airflow.
  • the filter 8' is clogged, the filter needs to be cleaned
  • the air inlet is closed by the control valve 61', the user presses the pressing portion 11' of the operating lever, and the contact portion 14' pushes down the control plate 521' on the valve 52'.
  • the shutter 522' rotates about the pivot 523', opening the buffer inlet 53', so that the airflow buffer 98' communicates with the bypass passage 56'.
  • the flow direction of the airflow is as indicated by the arrow in FIG. 5. Due to the formation of a negative pressure in the filter, the airflow in the bypass passage 56' is drawn into the airflow buffer 98', and the airflow in the airflow buffer is along the airflow passage 981' Flowing around the bracket while the airflow flows downward through the vertical air passage 831', and finally enters the interior of the bracket through the buffer outlet 99', entering the impeller chamber 541' in the head assembly through the airflow inlet 55' below the head assembly . As the impeller chamber communicates with the bypass passage, the airflow enters the bypass passage and then enters the airflow buffer to circulate the airflow.
  • the external airflow enters the bypass passage 56' through the air outlet 57', and this portion of the airflow also enters the airflow buffer. Since the airflow buffer is in communication with the outside atmosphere, when cleaning, the airflow buffer air pressure is greater than the filter external air pressure, so that the gas in the airflow buffer is blown through the filter from the inside of the filter to the outside, thereby attaching the filter to the outside. The dust blows off, making the cleaning effect better.
  • the cleaning filter can also be performed. Since the filter is clogged, the airflow that can enter through the air inlet is small, and the closed air inlet is cleaned for better. Cleaning effect.
  • FIG. 6 Another filter holder of the embodiment of the present invention is shown in Fig. 6.
  • the bracket 9' differs from the previous embodiment in that no spacer is provided on the side wall 94' of the bracket, so that there are no plurality of air passages.
  • Side wall 94' There is still a flow buffer between the inner wall of the filter and the air flow buffer between the upper edge 4' and the lower edge 3'.
  • the airflow flows from the upper part to the lower part of the airflow buffer through the airflow buffer.
  • the airflow buffer surrounds the bracket 9', and the airflow buffer also delays the passage of the purge airflow within the filter assembly to better remove dust from the filter.
  • the invention prolongs the time of cleaning the airflow in the filter assembly by providing an airflow buffer in the filter assembly, so that the cleaning airflow has a certain diffusion inside the filter, and does not directly flow back to the motor, so that the filter is inside,
  • the external pressure difference is reduced, the cleaning effect is better, the structure is simple, and the manufacturing cost is low.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

一种吸尘器，包括机头组件（5）、尘桶（7）和过滤器组件，机头组件（5）上设有气流入口（55），尘桶（7）与机头组件（5）可分离或配接，过滤器组件设置在机头组件（5）下方，过滤器组件包括支架（9）和过滤器（8），过滤器（8）套设在支架（9）外侧，支架（9）和过滤器（8）之间设有气流缓冲区（98），气流缓冲区（98）具有缓冲区入口（53）和缓冲区出口（99），缓冲区入口（53）通过阀门（52）与机头组件（5）内的旁路通道（56）连通或断开，缓冲区出口（99）与气流入口（55）连通。通过在过滤器组件内设置气流缓冲区，延长了清理气流在过滤器组件内的时间，使得清理气流在过滤器的内部有一定的扩散，不直接回流到电机，清理效果更好，同时结构简单，制造成本低。

Description

吸尘器 技术领域
本发明涉及一种吸尘器。
背景技术
吸尘器在工作时，灰尘随着气流被吸入吸尘器内部，吸尘器内部设置过滤器将气流中的灰尘过滤掉。吸尘器在长时间工作后，不断附着在过滤器上的灰尘会堵塞过滤器，使得吸尘器的吸尘能力降低，影响吸尘器的清洁效果。现有技术中采用设置灰尘清理结构的方式进行过滤器灰尘清理，根据清理方式大致可分为接触式和非接触式，接触式的一般有手动刮条、手动刷条、旋转刷条等清理附件直接作用于过滤器上，除了手动方式，也有通过机械振动和电磁振动机构，使过滤器产生振动，从而使灰尘脱离过滤器。非接触式的方式有充气方式和吹气方式，充气方式通过瞬间平衡过滤器内外侧压力差，灰尘靠自身重力下落；吹气方式有外部直接对灰尘吹气，也有反向从内侧吹气清理。但上述结构有的制造成本高，有的可靠性较差，有的清理效果不佳，因此需要一种更简单可靠，清理效果好的过滤器清洁机构。
发明内容
本发明为了改进现有技术的缺陷，提供了一种吸尘器，包括机头组件、尘桶和过滤器组件，所述过滤器组件设置在机头组件下方，尘桶与机头组件可分离或配接，机头组件上设有气流入口，所述过滤器组件包括支架和过滤器，过滤器套设在支架外侧，所述支架和过滤器之间设有气流缓冲区，气流缓冲区具有缓冲区入口和缓冲区出口，所述缓冲区入口通过阀门与所述机头组件内的旁路通道连通或断开，缓冲区出口与所述气流入口连通。
下面是本发明的附属技术方案：
优选的，所述气流缓冲区内设有多个气流通道，气流通道环绕在支架外侧。
优选的，所述支架上设有多个隔板，相邻隔板之间为气流通道。
优选的，所述过滤器组件包括气道，气流通道之间通过气道连通。
优选的，所述过滤器包括褶皱的过滤部，所述气道为过滤部内表面之间的间隙。
优选的，所述尘桶上设有进气口，进气口上设有控制阀。
优选的，所述缓冲区入口和缓冲区出口设置在支架上。
优选的，所述支架上具有上边缘和下边缘，所述气流缓冲区位于上边缘和下边缘之间。
优选的，所述缓冲区入口设置在所述上边缘，缓冲区出口设置在所述下边缘。
优选的，所述机头组件内设有出风通道，所述旁路通道与出风风道连通。
本发明的有益技术效果：本发明通过在过滤器组件内设置气流缓冲区，延长了清理气流在过滤器组件内的时间，使得清理气流在过滤器的内部有一定的扩散，不会直接回流到电机，使得过滤器内、外部压力差降低，清理效果更好，同时结构简单，制造成本低。
附图说明
图1是本发明实施例一的吸尘器剖视图。
图2是本发明实施例一的吸尘器分解图。
图3是本发明实施例一的吸尘器过滤器组件的剖视图。
图4是本发明实施例二的吸尘器剖视图。
图5是本发明实施例二的吸尘器另一剖视图。
图6是本发明实施例中一种支架结构的示意图。
具体实施方式
如图1和图2所示是本发明实施例吸尘器，其包括机头组件5、进气口6、尘桶7和过滤器组件。机头组件5设置在尘桶7上方，机头组件5内设有电机51，电机51驱动叶轮54抽吸气流，将外部灰尘吸入吸尘器内部，所述驱动叶轮54位于叶轮室541中。所述过滤器组件包括过滤器8和支架9，吸尘器工作时，气流通过尘桶7上的进气口6进入尘桶，经过过滤器8将气流中夹杂的灰尘过滤掉，然后气流经过机头组件5下方的气流入口55进入机头组件5内的风道。所述支架9安装在机头组件5下方，过滤器8套设在支架9外侧。过滤器的内壁81和支架9的侧壁94之间设有气流缓冲区98，气流缓冲区位于上边缘4和下边缘3之间。支架9的侧壁94上还设有多个隔板93(下边缘3也可以被视作一块隔板)，隔板93将气流缓冲区98分隔成多个气流通道981。所述隔板93环绕设置在过滤器8的侧壁94上，且与侧壁94紧贴，气流可在气流通道981内环绕支架流动。所述机头组件5内设有旁路通道56，其与吸尘器出风通道连通，出风通道与吸尘器外部大气连通，将吸尘器内的气流排出吸尘器。旁路通道和气流缓冲区98之间可通过阀门52连通或切断。阀门52为可枢转的阀门，可打开或封闭缓冲区入口53，阀门52可通过一定的方式进行控制，例如可通过设置联动机构，在吸尘器外部设置操作杆，用户使用操作杆控制阀门开或关；也可以设置成电磁阀门，用户通过按钮控制电磁阀门吸合或打开，本领域中已有多种阀门控制方式，本领域技术人员不需要创造性劳动即可借鉴。过滤器组件还包括隔水杯91，其位于支架9内部，当吸尘器吸入的水到达隔水杯的位置时， 隔水杯上浮，随着水位升高，隔水杯上浮到气流入口55，将气流入口封闭，从而防止水进入机头组件而损坏吸尘器。
如图2和图3所示，过滤器8包括上端面82和下端面84，上、下端面之间为过滤部83，过滤部83大致为圆柱形，过滤器8可以是HEPA过滤器。所述过滤部83由纸质过滤材料折叠而成，因此过滤部83的截面为褶皱形式，增大气流与过滤部的接触面积。过滤部83上具有竖直方向的气道831，本实施例中，气道831是由过滤部83的内表面832之间的间隙构成，因此多个气道831环绕着气流缓冲区，使得清理气流通过气道831从气流缓冲区的上部流到气流缓冲区的下部。过滤器的内壁81和支架9的侧壁94之间具有气流通道981，气流通道之间通过气道831连通。当需要清洁过滤器8时，打开阀门52，旁路通道56与气流缓冲区98连通。由于电机不断抽吸过滤器组件内的气体，因此过滤器组件内的气压低于旁路通道56内的气压，旁路通道56内的气流进入气流缓冲区98，沿着气流通道981环绕支架流动(如图3中箭头所示为气流流动方向)，通过缓冲区出口99进入支架内部，然后通过气流入口55进入机头组件5内的旁路通道，从而形成气流循环。所述缓冲区出口99设置在支架的下边缘3下方。气流缓冲区98延缓了气流在过滤器组件内部的通过时间，使得过滤器内、外壁压力差降低，使得附着在过滤器外部的灰尘脱离过滤器，落入尘桶7内。
如图4和图5所示是本发明另一种实施方式，本实施例与前述实施方式大致相同，以下针对部分特征做进一步说明。吸尘器设有清洁控制组件1’，清洁控制组件包括操作杆13’，操作杆13’插入机头组件5’中。操作杆13’上端设有按压部11’，按压部与机头组件的外壳之间设有复位弹簧12’，复位弹簧套设在操作杆13’外侧。操作杆13’下端设有接触部14’，接触部14’大致成半球形。吸尘器内设有阀门52’，阀门52’包括挡板522’、控制板521’ 和转轴523’，挡板用于封闭缓冲区入口53’。挡板522’与控制板521’之间形成一定夹角，控制板和挡板均可绕转轴523’转动。吸尘器尘桶的进气口6’上设有控制阀61’，当清洁过滤器时，控制阀61’可封闭进气口6’，获得更好的清洁效果。当吸尘器正常使用时，外部气流通过进气口6’进入吸尘器内部，气流通过过滤器进入机头组件，然后排出吸尘器，如图4所示箭头方向为气流流动方向。当过滤器8’堵塞时，需要清洁过滤器，用控制阀61’封闭进风口，用户按下操作杆的按压部11’，接触部14’向下推动阀门52’上的控制板521’，此时挡板522’绕枢轴523’转动，打开缓冲区入口53’，使得气流缓冲区98’和旁路通道56’连通。此时气流的流动方向如图5中箭头所示，由于过滤器内形成负压，旁路通道56’内的气流被吸入气流缓冲区98’，气流缓冲区内的气流沿着气流通道981’环绕支架流动，同时气流通过竖直方向的气道831’向下流动，最后通过缓冲区出口99’进入支架内部，通过机头组件下方的气流入口55’进入机头组件内的叶轮室541’。由于叶轮室和旁路通道连通，气流进入旁路通道，继而又进入气流缓冲区使得气流不断循环。同时，由于吸尘器内部气压比外部大气压力低，外部气流会通过出气口57’进入旁路通道56’，这部分气流也会进入气流缓冲区。由于气流缓冲区与外部大气连通，清洁时，气流缓冲区的气压会大于过滤器外部气压，使得气流缓冲区的内的气体透过过滤器由过滤器内部吹向外部，从而将过滤器外部附着的灰尘吹落，使得清洁效果更好。本实施例中，如果不使用控制阀61’封闭进风口，也能够进行清洁过滤器，因为过滤器堵塞后，通过进风口能够进入的气流很少，而封闭进风口清洁是为了获得更好的清洁效果。
如图6所示是本发明实施例的另一种过滤器支架，支架9’与前述实施例中的区别在于支架的侧壁94’上没有设置隔板，因此没有多个气流通道。侧壁94’ 和过滤器内壁之间仍然具有气流缓冲区，气流缓冲区位于上边缘4’和下边缘3’之间。气流通过气流缓冲区从上部流向气流缓冲区下部。气流缓冲区环绕着支架9’，气流缓冲区同样能够延缓清理气流在过滤器组件内的通过时间，从而更好得使灰尘脱离过滤器。
本发明通过在过滤器组件内设置气流缓冲区，延长了清理气流在过滤器组件内的时间，使得清理气流在过滤器的内部有一定的扩散，不会直接回流到电机，使得过滤器内、外部压力差降低，清理效果更好，同时结构简单，制造成本低。需要指出的是，上述较佳实施例仅为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种吸尘器，包括机头组件、尘桶和过滤器组件，所述过滤器组件设置在机头组件下方，尘桶与机头组件可分离或配接，机头组件上设有气流入口，所述过滤器组件包括支架和过滤器，过滤器套设在支架外侧，其特征在于：所述支架和过滤器之间设有气流缓冲区，气流缓冲区具有缓冲区入口和缓冲区出口，所述缓冲区入口通过阀门与所述机头组件内的旁路通道连通或断开，缓冲区出口与所述气流入口连通。
  2. 如权利要求1所述的吸尘器，其特征在于：所述气流缓冲区内设有多个气流通道，气流通道环绕在支架外侧。
  3. 如权利要求2所述的吸尘器，其特征在于：所述支架上设有多个隔板，相邻隔板之间为气流通道。
  4. 如权利要求2所述的吸尘器，其特征在于：所述过滤器组件包括气道，气流通道之间通过气道连通。
  5. 如权利要求4所述的吸尘器，其特征在于：所述过滤器包括褶皱的过滤部，所述气道为过滤部内表面之间的间隙。
  6. 如权利要求1所述的吸尘器，其特征在于：所述尘桶上设有进气口，进气口上设有控制阀。
  7. 如权利要求1所述的吸尘器，其特征在于：所述缓冲区入口和缓冲区出口设置在支架上。
  8. 如权利要求7所述的吸尘器，其特征在于：所述支架上具有上边缘和下边缘，所述气流缓冲区位于上边缘和下边缘之间。
  9. 如权利要求8所述的吸尘器，其特征在于：所述缓冲区入口设置在所述上边缘，缓冲区出口设置在所述下边缘。
  10. 如权利要求1所述的吸尘器，其特征在于：所述机头组件内设有出风通道，所述旁路通道与出风风道连通。
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