WO2012068975A1 - 吸尘器风动地刷 - Google Patents
吸尘器风动地刷 Download PDFInfo
- Publication number
- WO2012068975A1 WO2012068975A1 PCT/CN2011/082496 CN2011082496W WO2012068975A1 WO 2012068975 A1 WO2012068975 A1 WO 2012068975A1 CN 2011082496 W CN2011082496 W CN 2011082496W WO 2012068975 A1 WO2012068975 A1 WO 2012068975A1
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- WO
- WIPO (PCT)
- Prior art keywords
- brush
- vacuum cleaner
- air
- air inlet
- ground
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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
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0405—Driving means for the brushes or agitators
- A47L9/0416—Driving means for the brushes or agitators driven by fluid pressure, e.g. by means of an air turbine
Definitions
- the invention relates to a pneumatic brush for a vacuum cleaner.
- the existing vacuum cleaner is pneumatically brushed, which comprises a roller brush, a roller brush bar mounted on the roller brush, and a wind channel behind the roller brush, wherein the roller brush generally adopts a single-screw spiral mode, but the method is not favorable for sucking. Dust, resulting in poor cleaning effect, so there is a double-screw spiral brush in the industry, which is a one-shot injection molding, but the product cost is high, and the mold is complex, and the injection molding process is required.
- the structure of the air duct has a great influence on the dust collecting capacity and noise of the ground brush, and the existing air duct has problems such as unsmooth airflow and high noise, and the cleaning ability of the existing ground brush is poor, especially
- the cause of the above problem is caused by the fact that the existing air inlet area is large, and the wind speed is low, and the cleaning effect of the roller brush is not good.
- the utility model relates to a pneumatic brush of a vacuum cleaner, which comprises at least a ground brush holder with an air inlet passage in front and a wind passage at the rear, and a roller brush body mounted on the ground brush holder and located between the air inlet passage and the air passage.
- the brush body includes a roller brush blade that is driven to rotate by a flow of air flowing through the intake passage and is V-shaped.
- the subsidiary technical solution is further included:
- the roller brush body further includes a V-shaped spiral groove on an outer side surface thereof, and the roller brush blade is installed in the spiral groove.
- the rolling brush body comprises a first spiral roller brush segment and a second spiral roller brush segment separated from the first spiral roller brush segment, wherein the first and second spiral roller brush segments are connected in reverse, so that the first and second after the connection
- the spiral brush segments are opposite in direction of rotation, and the roller body further includes a connecting rod connecting the first and second spiral roller segments.
- a second technical solution of the present invention is: a vacuum cleaner for a vacuum cleaner, comprising: a ground brush holder having a brush chamber, a duct at a rear end of the floor brush holder, and a roller brush body housed in the brush chamber, wherein The air duct is connected to the rear of the brushing chamber through an air inlet of the air duct, and the cross section of the air inlet of the air duct is small and has a bell mouth shape, and the brushing chamber is provided with an air inlet at the front, and the rolling brush body The airflow flowing between the air inlet and the air inlet and through the air inlet drives the rotation.
- the ground brush holder further includes a ground brush cover for shielding the brush body, wherein the floor brush cover comprises an arc segment located above the brush chamber, a transition portion connected to the arc segment, connected to the transition portion and extending upward a curved section, the air duct air inlet is defined by a transition section, a lower edge, and a side edge, wherein the lower edge is located below the axis of the roller body, and the air inlet direction of the air duct is rotated with the roller body The circumference is tangent.
- the vertical height H1 of the transition section from the axis of the roller body is less than 15 mm.
- the air duct includes a front air duct at the front end, a hose connected to the front air duct buckle, and a rear air duct connected to the hose.
- a third technical solution of the present invention is: a vacuum cleaner for a vacuum cleaner, comprising: a ground brush holder having a brush chamber, a duct at a rear end of the floor brush holder, and a roller brush body housed in the brush chamber, wherein
- the air duct communicates with the rear of the brushing chamber through an air inlet of the air duct, and the rolling brush chamber is provided with an air inlet passage at the front, and the roller brush body is located between the air inlet and the air inlet passage of the air duct and passes through the air inlet passage
- the inflowing airflow drives the rotation, the cross-sectional area of the intake passage is less than 150 mm 2 , and the height H of the intake passage is less than 5 mm.
- the subsidiary technical solution is further included:
- the intake passage includes an intake port and an air outlet, wherein the cross-sectional area of the intake port is larger than the cross-sectional area of the air outlet.
- the cross-sectional area of the air outlet is less than or equal to 75 mm 2 , and the height H of the air outlet is less than or equal to 2 mm.
- the ground brush holder includes a base and a ground brush upper cover located above the base, the brush body is disposed between the ground cover upper cover and the base, wherein the number of the intake passages is two, and The duct is symmetrically centered.
- the base further includes a side air intake passage including a side air inlet and a side air outlet, wherein a cross-sectional area of the side air inlet is smaller than a cross-sectional area of the side air outlet, and the side air inlet is cut
- the area is less than 8 mm 2 and the cross-sectional area of the side air outlet is less than 18 mm 2 .
- the base includes a ground brush sidewall formed on both sides, and a recess communicating with the side intake passage and located on the bottom surface of the base, wherein the side intake passage is located between the ground brush sidewall and the brush chamber .
- the recess is formed by extending from both side edges toward the bottom, the side edges including an outer edge adjacent to the side wall of the brush, and an inner edge adjacent to the brush chamber, wherein the outer edge is closer to the ground than the inner edge and is higher from the ground Less than 1mm.
- the invention adopts the flared air inlet to facilitate the airflow to drive the pneumatic roller brush, reduce the rapid rotation of the airflow, avoid turbulence, improve the dust collection efficiency of the ground brush, improve the cleaning effect of the rolling brush, and increase the inhalation.
- the amount of air while reducing the noise of the ground brush.
- the V-type brush blade of the present invention has a large driving force, can smoothly clean the garbage located at the front, improve the cleaning effect in the dead zone, greatly reduce the vibration and noise of the roller body during high-speed rotation, and the mold is simple and reliable. Higher and lower cost.
- the invention improves the cleaning ability of the front and the side of the ground brush under the condition of reducing the influence on the rotating speed of the brush, and improves the efficiency of the ground brush, especially the dusting effect of the corner and the dead angle of the working environment. And reduce the loss of wind power to the brush drive.
- the driving force of the brush is improved, the negative pressure of the brushing chamber is also obviously improved, the cleaning ability is improved, and the structure is simple and reliable.
- Figure 1 is a perspective view of the present invention
- Figure 2 is a schematic bottom view of the present invention
- Figure 3 is a front elevational view of the present invention.
- Figure 4 is a side view of the present invention.
- Figure 5 is a perspective view of the roller brush body of the present invention.
- Figure 6 is an exploded perspective view of the roller brush body of the present invention.
- Figure 7 is a schematic cross-sectional view of the present invention.
- Figure 8 is a bottom view of the present invention, similar to Figure 2, wherein the bottom portion of the ground brush holder is removed;
- the present invention provides a specific embodiment of a pneumatic brush of a vacuum cleaner, which comprises a ground brush upper cover 11 located above, a base 12 located below, and a ground brush.
- the floor brush cover 11 and the base 12 constitute a ground brush holder 10, and the roller brush body 20 includes a roller brush blade 200 disposed thereon.
- the base 12 includes a ground brush side wall 14 formed on both sides, a protective strip 16 on the front side and surrounding the side wall 14 of the ground brush, and a roller brush located between the side walls 14 of the two brushes.
- the chamber 120 is located in front of the brush chamber 120 and communicates with the brush chamber 120 and is located on the bottom surface of the base 12.
- the two intake passages 122 are located on both sides of the brush chamber 120 and communicate with the brush chamber 120 and are located on the bottom surface of the base 12.
- the side air inlet passage 124 has an outer narrow inner width, and includes a side air inlet 1240 on the side wall 14 of the ground brush, and a side air outlet 1242 on the side edge of the brush chamber 120, wherein the side air inlet 1240 is in an arc.
- the shape, the cross-sectional area of the side air inlet 1240 is smaller than the sectional area of the side air outlet 1242, the sectional area of the side air inlet 1240 is preferably less than 8 mm 2 , and the sectional area of the side air outlet 1242 is preferably greater than 8 mm 2 and less than 18 mm 2 , thereby setting It can be ensured that an intermediate negative pressure region is formed between the side air inlet 1240 and the side air outlet 1242 to be connected to the brushing chamber 120 having the largest negative pressure, whereby the dust located near the side air inlet 1240 can easily enter the side.
- the side air inlet passage of the existing vacuum cleaner brush does not have an intermediate negative pressure region, so that the side dust is not easily sucked into the brush chamber, resulting in suction.
- the dust ability is too bad.
- the opening of the recess 126 faces the side air inlet passage 124 and extends toward the bottom portion through the side edges to form a recess 126 that includes an outer edge 1260 adjacent the ground brush sidewall 14 and an inner edge 1262 adjacent the brush chamber 120.
- the length of the inner edge 1262 extending downwardly is less than the length of the outer edge 1260 extending downwardly, ie the outer edge 1260 is closer to the ground than the inner edge 1262, wherein the height from the ground is preferably less than 1 mm, more preferably less than or equal to 0.5 mm, such that The outer edge 1260 achieves a better seal, and as the recess 126 communicates with the side inlet passage 124, some of the dust can enter the recess 126 and can enter the roller chamber 120 through the inner edge 1262, facilitating dust cleaning.
- the intake passage 122 includes an intake port 1220 on the protection strip 16 and an air outlet 1222 on the front edge of the brush chamber 120, wherein the intake passage 122 gradually becomes smaller along the intake direction, and the air outlet 1222
- the cross-sectional area is smaller than the cross-sectional area of the air inlet 1220, the cross-sectional area of the air inlet 1220 is preferably less than 150 mm 2 , the height H of the air inlet 1220 is preferably less than 5 mm, and the cross-sectional area of the air outlet 1222 is preferably less than or equal to 75 mm 2 .
- the height H of the air outlet 1222 is preferably 2 mm or less, and the cumulative sectional area of the two air inlets 1220 is guaranteed to be less than 300 mm 2 , thereby ensuring a high intake air speed, and thus it is easier to suck the dust located in front.
- the brush body 20 includes a spiral groove (222, 242) on the outer side thereof, a roller brush blade 200 mounted in the spiral groove (222, 242), and a roller body axis 202.
- the roller brush blade is preferably a PVC strip or top.
- the roller body 20 is comprised of a first helical roller section 22, a second helical roller section 24, and a connecting rod 26 that connects the first and second helical roller sections (22, 24).
- the first spiral roller brush segment 22 includes a first shaft hole 220 accommodating one end of the connecting rod 26, and a plurality of first spiral grooves 222 disposed on the outer side
- the second spiral roller brush portion 24 includes a first portion accommodating the other end of the connecting rod 26.
- a V-shaped spiral groove is formed.
- first spiral roller segments 22 are first obtained by an extrusion molding process, and then reversely butted, that is, the first spiral groove 222 and the second spiral groove 242 are oppositely rotated.
- the first spiral roller segment 22 and the second spiral roller segment 24 are fixed by inserting the connecting rod 26 into the first and second shaft holes (220, 240), respectively, and then the roller brush blade 200 is mounted to the first and second spirals.
- the groove (222, 242) is formed to form a V-shaped brush blade for rotating by the air flow, wherein the connection of the connecting rod 26 and the first and second shaft holes (220, 240) is an interference fit, and the connecting rod 26 is preferably The ground is a hollow metal rod.
- the fixing between the first and second helical roller segments (22, 24) can also be achieved by a bonding or welding process.
- the cover panel 11 includes an arcuate section 110 above the roller brushing chamber 12, a transition section 112 coupled to the arcuate section 110, a curved section 114 coupled to the transition section 112 and extending upwardly.
- the arc segment 110 is a circular arc to ensure that the roller brush chamber 12 has a circular cavity.
- the air duct 30 includes a front air duct 340 at the front end, a hose 342 that is snap-connected to the front air duct 340, and a rear air duct 344 connected to the hose 142, wherein the hose 342 is partially exposed, the front air duct 340 and
- the brush chambers 120 are connected by a duct inlet 320, and the front duct 340 is defined by a curved section 114 located at the upper portion and a pedestal 12 located at the lower portion, wherein the duct inlet 320 is formed by the transition section 112 (or upper) The edge), the lower edge 322, and the side edge 324 are defined, and the cross section of the air inlet 320 is small and has a horn shape, and the air inlet direction of the air inlet 120 is opposite to the circumferential direction of the rotation of the roller body.
- the vertical height H1 is preferably less than 15 mm to ensure the airflow direction of the flared air inlet, thereby reducing the airflow reversed from the rotation of the roller body 20,
- the driving force of the large roller body 20 makes it easier to suck in dust, reduces the rotation and turbulence of dust in the brush chamber 120, and improves the dust collecting efficiency.
- the vacuum motor (not shown) of the vacuum cleaner rotates at a high speed to generate a vacuum, and the dust-containing airflow enters from the front intake passage 122. Since the cross-sectional area of the intake passage 122 gradually decreases with the direction of the intake air, the wind speed gradually increases. And entering the ground brush room 120, and then speeding up the high-speed rotation of the roller brush blade 200, thereby driving the rotation of the roller brush body 20, and since the bottom of the ground brush side wall 14 is less than 1 mm from the ground height h, the ground brush wall 14 is realized.
- a better seal with the ground, and the cross-sectional area through the side air inlet 1240 is less than 8 mm 2 , it is easier to suck the dust located on the side wall 14 of the ground brush, and then enter the brush chamber 120, while the front and side air flows through the roll. After the brush body 20, it enters the front air duct 340 along the flared side edge 324 and then re-enters the rear air duct 344 via the hose 342, thereby entering the vacuum motor.
- the invention adopts the horn-shaped air inlet to facilitate the airflow to drive the wind-driven roller brush, reduces the rapid rotation of the airflow, avoids turbulent flow, improves the dust-collecting efficiency of the ground brush, improves the cleaning effect of the rolling brush, and increases the air volume of the suction, At the same time, the noise of the ground brush is reduced.
- the V-type brush blade of the invention has large driving force, can smoothly clean the garbage located at the front, improves the cleaning effect in the dead zone, greatly reduces the vibration and noise of the roller body during high-speed rotation, and has simple mold and high reliability. At the same time, the cost is lower.
- the invention improves the cleaning ability of the front and the side of the ground brush under the condition of reducing the influence on the rotating speed of the brush, and improves the efficiency of the ground brush, especially the dusting effect of the corner and the dead angle of the working environment, and The loss of wind power to the brush drive is reduced.
- the driving force of the brush is improved, the negative pressure of the brushing chamber is also obviously improved, the cleaning ability is improved, and the structure is simple and reliable.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Description
技术领域
本发明涉及一种吸尘器风动地刷。
背景技术
现有的吸尘器风动地刷，其包括滚刷、安装在滚刷上的滚刷条、以及位于滚刷后方的风道，其中滚刷一般采用单旋向螺旋方式，但该方式不利于吸尘，造成清洁效果较差，因此业内有提出双旋向螺旋的滚刷，其为一次注塑成型，但产品成本较高，而且模具复杂，同时注塑工艺要求较高。同时风道的结构对地刷的吸尘能力和噪音等参数有较大影响，而现有的风道存在气流不顺畅，噪音较高等问题，且现有地刷的清扫能力较差，尤其是清理墙壁死角，而造成上述问题的原因是因为现有进气口面积较大，导致风速较低，且滚刷的清洁效果缺佳。
发明内容
本发明目的是：提供一种提高清洁能力且吸尘器风动地刷。
本发明的第一技术方案是：
一种吸尘器风动地刷，其至少包括：前方设有一进气通道而后方设有一风道的地刷座、以及安装在地刷座上且位于进气通道和风道之间的滚刷体，其中滚刷体包括被由进气通道所流入气流驱动旋转且呈V型的滚刷叶片。
在第一技术方案的基础上，进一步包括附属技术方案：
所述滚刷体进一步包括位于其外侧面的V型螺旋槽，而所述滚刷叶片安装在该螺旋槽内。
所述滚刷体包括第一螺旋滚刷段、与第一螺旋滚刷段相分离的第二螺旋滚刷段，其中第一、二螺旋滚刷段反向连接，使得连接后第一、二螺旋滚刷段的旋向相反，所述滚刷体还包括连接第一、二螺旋滚刷段的连接杆。
本发明的第二技术方案是：一种吸尘器风动地刷，其包括：具有滚刷室的地刷座、位于地刷座后端的风道、和收容在滚刷室内的滚刷体，其中风道通过一风道进风口与滚刷室的后方相连通，且该风道进风口的截面变小并呈喇叭口形状，而滚刷室在前方设有进气口，所述滚刷体位于风道进风口和进气口之间并通过进气口所流入的气流驱动旋转。
在第二技术方案的基础上，进一步包括附属技术方案：
所述地刷座进一步包括遮蔽滚刷体的地刷上盖，其中该地刷上盖包括位于滚刷室上方的弧形段、与弧形段相连的过渡段、与过渡段相连并向上延伸的弯曲段，所述风道进风口由过渡段、下边缘、和侧边缘界定形成，其中下边缘位于滚刷体轴心的下方，且该风道进风口进风方向与滚刷体旋转的圆周相切。
所述过渡段距离滚刷体轴心的垂直高度H1小于15mm。
所述风道包括位于前端的前风道、与前风道卡扣相连的软管、以及与软管相连的后风道。
本发明的第三技术方案是：一种吸尘器风动地刷，其包括：具有滚刷室的地刷座、位于地刷座后端的风道、和收容在滚刷室内的滚刷体，其中风道通过一风道进风口与滚刷室的后方相连通，而滚刷室在前方设有一进气通道，所述滚刷体位于风道进风口和进气通道之间并通过进气通道所流入的气流驱动旋转，该进气通道的截面积小于150mm2，且进气通道的高度H小于5mm。
在第三技术方案的基础上，进一步包括附属技术方案：
该进气通道包括进气口和出气口，其中进气口的截面积大于出气口的截面积。
所述出气口的截面积小于等于75mm2，且出气口的高度H小于等于2mm。
所述地刷座包括基座、以及位于基座上方的地刷上盖，所述滚刷体设置在地刷上盖和基座之间，其中进气通道的个数为两个，并以风道为中心对称设置。
所述基座还包括侧进气通道，该侧进气通道包括侧进气口和侧出气口，其中侧进气口的截面积小于侧出气口的截面积，所述侧进气口的截面积小于8mm2，而侧出气口的截面积小于18mm2。
所述基座包括形成于两侧的地刷侧壁、以及与侧进气通道相连通并位于基座底面的一凹部，其中所述侧进气通道位于地刷侧壁和滚刷室之间。
所述凹部由两侧边缘向底部延伸而形成，该两侧边缘包括靠近地刷侧壁的外侧边缘、靠近滚刷室的内侧边缘，其中外侧边缘较内侧边缘更接近地面，并离地面高度要小于1mm。
所述凹部的顶面与侧进气通道的顶面存在高度差。
本发明优点是：
1）本发明通过喇叭形进风口，有利于气流驱动风动滚刷，减少了气流急转，避免紊流，提高了地刷的吸尘效率，提高滚动毛刷的清洁效果，并增加吸入的风量，同时降低了地刷的噪音。
2）本发明的V型滚刷叶片的驱动力大，能顺利清扫位于前方的垃圾，提高死角地区的清洁效果，大大降低滚刷体在高速转动时的振动和噪音，而且模具简单，可靠性较高，同时成本较低。
3）本发明在尽可能减小对滚刷转速影响的条件下，提高了地刷前方和侧边清洁的能力，提高了地刷的效率，特别对工作环境的拐角和死角的吸尘效果好，而且降低了对滚刷驱动风力的损失。同时提高了滚刷驱动力，滚刷室的负压也明显提高，清洁能力提高，结构实现简单可靠。
附图说明
下面结合附图及实施例对本发明作进一步描述：
图1为本发明的立体示意图；
图2为本发明的仰视示意图；
图3为本发明的主视示意图；
图4为本发明的侧面示意图；
图5为本发明的滚刷体的立体示意图；
图6为本发明的滚刷体的分解示意图；
图7为本发明的剖视示意图；
图8为本发明的仰视示意图，与图2类似，其中地刷座的底部部分被移除；
其中：10、地刷座；11、地刷上盖；12、基座；14、地刷侧壁；16、保护条；20、滚刷体；22、第一螺旋滚刷段；24、第二螺旋滚刷段；26、连接杆；30、风道；40、后滚轮；42、前滚轮；110、弧形段；112、过渡段；114、弯曲段；120、滚刷室；122、进气通道；124、侧进气通道；126、凹部；200、滚刷叶片；202、滚刷体轴心；220、第一轴孔；222、第一螺旋槽；240、第二轴孔；242、第二螺旋槽；320、风道进风口；322、下边缘；324、侧边缘；340、前风道；342、软管；344、后风道；1220、进气口；1222、出气口；1240、侧进气口；1242、侧出气口；1260、外侧边缘；1262、内侧边缘。
具体实施方式
实施例：如图1-2所示，本发明提供了一种吸尘器风动地刷的具体实施例，其包括位于上方的地刷上盖11、位于下方的基座12、设置在地刷上盖11和基座12之间的滚刷体20、设置在后方的风道30、设置在风道30下方的一对后滚轮40、以及设在基座12底部前方的一对前滚轮42。其中地刷上盖11和基座12构成地刷座10，而滚刷体20包括设置在其上的滚刷叶片200。
再结合图3-4所示，基座12包括形成于两侧的地刷侧壁14、位于前方并围绕地刷侧壁14上的保护条16、位于两地刷侧壁14中间的滚刷室120、位于滚刷室120前方并与滚刷室120连通且位于基座12底面的两进气通道122、位于滚刷室120两侧并与滚刷室120连通且位于基座12底面的一对侧进气通道124、以及与对应的侧进气通道124相连通并位于基座12底面的一对凹部126，其中滚刷体20安装在滚刷室120内，风道30位于滚刷室120后方且与滚刷室120相连通，地刷侧壁14的底部距离地面高度h优选地小于1mm，较佳地小于等于0.5mm。侧进气通道124呈外窄内宽，其包括位于地刷侧壁14上的侧进气口1240、和位于滚刷室120侧边缘上的侧出气口1242，其中侧进气口1240呈弧形状，侧进气口1240的截面积小于侧出气口1242的截面积，侧进气口1240的截面积优选地小于8mm2，侧出气口1242的截面积优选地大于8mm2且小于18mm2，由此设置可确保侧进气口1240和侧出气口1242之间形成一中间负压区域，以过渡连接到负压最大的滚刷室120，由此位于侧进气口1240附近的灰尘很容易进入到侧进气通道124中，并进而进入到滚刷室120内，而现有吸尘器地刷的侧进气通道则因不具有中间负压区域导致侧边的灰尘不容易吸入到滚刷室内，导致吸尘能力过差。凹部126的开口朝向侧进气通道124，并通过两侧边缘向底部延伸以形成凹部126，该两侧边缘包括靠近地刷侧壁14的外侧边缘1260、靠近滚刷室120的内侧边缘1262，其中内侧边缘1262向下延伸的长度小于外侧边缘1260向下延伸的长度，即外侧边缘1260较内侧边缘1262更接近地面，其中离地面高度优选地小于1mm，更佳地小于等于0.5mm，这样通过外侧边缘1260实现更良好的密封，而由于凹部126与侧进气通道124相连通，部分灰尘可以进入到凹部126，并可通过内侧边缘1262进入到滚刷室120内，有利于灰尘清扫。同时凹部126的顶面与侧进气通道124的顶面存在高度差，且凹部126的顶面较侧进气通道124的顶面更接近地面。进气通道122包括位于保护条16上的进气口1220、和位于滚刷室120前边缘上的出气口1222，其中进气通道122沿着进气方向截面积逐渐变小，出气口1222的截面积小于进气口1220的截面积，进气口1220的截面积优选地小于150mm2，进气口1220的高度H优选地小于5mm，而出气口1222的截面积优选地小于等于75mm2，出气口1222的高度H优选地小于等于2mm，同时两个进气口1220的累计截面积要保证小于300mm2，由此确保进气风速较高，进而更容易吸取位于前方的灰尘。
如图5-6所示，滚刷体20包括位于其外侧面的螺旋槽（222、242）、安装在该螺旋槽（222、242）内的滚刷叶片200、和滚刷体轴心202，滚刷叶片优选为PVC皮条或毛条。在本实施例中，滚刷体20由第一螺旋滚刷段22、第二螺旋滚刷段24、和连接第一、二螺旋滚刷段（22、24）的连接杆26所组成。第一螺旋滚刷段22包括收容连接杆26一端的第一轴孔220、以及设置在外侧的若干个第一螺旋槽222，而第二螺旋滚刷段24包括收容连接杆26另一端的第二轴孔240、以及设置在外侧的若干个第二螺旋槽242，其中第一螺旋槽222和第二螺旋槽242旋向相反，并通过连接杆26连接第一、二螺旋滚刷段（22、24）之后，形成V型螺旋槽。在制作滚刷体20时，先通过挤出成型工艺获得至少两个第一螺旋滚刷段22，然后将其进行反向对接，即第一螺旋槽222和第二螺旋槽242旋向相反，再通过连接杆26分别插入到第一、二轴孔（220、240）来固定第一螺旋滚刷段22和第二螺旋滚刷段24，然后将滚刷叶片200安装到第一、二螺旋槽（222、242）内，以形成V型滚刷叶片，便于气流带动而旋转，其中连接杆26与第一、二轴孔（220、240）的配合为过盈配合，而连接杆26优选地为中空的金属杆。同样地，为实现第一、二螺旋滚刷段（22、24）之间的固定也可以通过粘接或焊接工艺来实现。
如图7-8所示，盖板11包括位于滚刷室12上方的弧形段110、与弧形段110相连的过渡段112、与过渡段112相连并向上延伸的弯曲段114。其中弧形段110为一段圆弧，以确保滚刷室12具有圆形空腔。
风道30包括位于前端的前风道340、与前风道340卡扣相连的软管342、以及与软管142相连的后风道344，其中软管342部分裸露在外，前风道340和滚刷室120之间通过风道进风口320相连，而前风道340由位于上部的弯曲段114和位于下部的基座12界定形成，其中风道进风口320由过渡段112（或称上边缘）、下边缘322、和侧边缘324界定形成，且该风道进风口320的截面变小并呈喇叭形状，同时风道进风口120的进风方向与滚刷体旋转的圆周方向是相切的。其中过渡段112与滚刷体轴心202之间有一垂直高度H1，该垂直高度H1优选地小于15mm，以保证喇叭形进风口的气流方向，从而减少与滚刷体20旋转逆向的气流，加大滚刷体20的驱动力，更容易吸入灰尘，减少了灰尘在滚刷室120内的旋转和紊流，提高了吸尘效率。
工作时，吸尘器的真空电机（未图示）高速旋转而产生真空，含尘气流从前方的进气通道122进入，由于进气通道122截面积随着进风方向逐渐变小，风速逐渐提升，并进入到地刷室120内，然后加快滚刷叶片200的高速旋转，从而带动滚刷体20的旋转，而由于地刷侧壁14的底部距离地面高度h小于1mm，实现地刷侧壁14与地面更良好的密封，且通过侧进气口1240的截面积小于8mm2，更容易吸取位于地刷侧壁14的灰尘，然后进入到滚刷室120内，而前方和侧方气流经过滚刷体20之后，沿着喇叭形的侧边缘324进入到前风道340，然后经软管342再进入到后风道344，由此进入到真空电机内。
本发明通过喇叭形进风口，有利于气流驱动风动滚刷，减少了气流急转，避免紊流，提高了地刷的吸尘效率，提高滚动毛刷的清洁效果，并增加吸入的风量，同时降低了地刷的噪音。
本发明的V型滚刷叶片的驱动力大，能顺利清扫位于前方的垃圾，提高死角地区的清洁效果，大大降低滚刷体在高速转动时的振动和噪音，而且模具简单，可靠性较高，同时成本较低。
本发明在尽可能减小对滚刷转速影响的条件下，提高了地刷前方和侧边清洁的能力，提高了地刷的效率，特别对工作环境的拐角和死角的吸尘效果好，而且降低了对滚刷驱动风力的损失。同时提高了滚刷驱动力，滚刷室的负压也明显提高，清洁能力提高，结构实现简单可靠。
当然上述实施例只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。凡根据本发明主要技术方案的精神实质所做的等效变换或修饰，都应涵盖在本发明的保护范围之内。
Claims (15)
1.
一种吸尘器风动地刷，其特征在于其至少包括：前方设有一进气通道（122）而后方设有一风道（30）的地刷座（10）、以及安装在地刷座（10）上且位于进气通道（122）和风道（30）之间的滚刷体（20），其中滚刷体（20）包括被由进气通道（122）所流入气流驱动旋转且呈V型的滚刷叶片（200）。
2.
根据权利要求1所述的吸尘器风动地刷，其特征在于：所述滚刷体（20）进一步包括位于其外侧面的V型螺旋槽（222、242），而所述滚刷叶片（200）安装在该螺旋槽（222、242）内。
3.
根据权利要求2所述的吸尘器风动地刷，其特征在于：所述滚刷体（20）包括第一螺旋滚刷段（22）、与第一螺旋滚刷段（22）相分离的第二螺旋滚刷段（24），其中第一、二螺旋滚刷段（22、24）反向连接，使得连接后第一、二螺旋滚刷段（22、24）的旋向相反，所述滚刷体（20）还包括连接第一、二螺旋滚刷段（22、24）的连接杆（26）。
4.
一种吸尘器风动地刷，其特征在于其包括：具有滚刷室（120）的地刷座（10）、位于地刷座（10）后端的风道（30）、和收容在滚刷室（120）内的滚刷体（20），其中风道（30）通过一风道进风口（320）与滚刷室（120）的后方相连通，且该风道进风口（320）的截面变小并呈喇叭口形状，而滚刷室（120）在前方设有进气口（1220），所述滚刷体（20）位于风道进风口（320）和进气口（1220）之间并通过进气口（1220）所流入的气流驱动旋转。
5.
根据权利要求4所述的吸尘器风动地刷，其特征在于：所述地刷座（10）进一步包括遮蔽滚刷体（20）的地刷上盖（11），其中该地刷上盖（11）包括位于滚刷室（120）上方的弧形段（110）、与弧形段（110）相连的过渡段（112）、与过渡段（112）相连并向上延伸的弯曲段（114），所述风道进风口（320）由过渡段（112）、下边缘（322）、和侧边缘（324）界定形成，其中下边缘（322）位于滚刷体轴心（202）的下方，且该风道进风口（320）进风方向与滚刷体（20）旋转的圆周相切。
6.
根据权利要求5所述的吸尘器风动地刷，其特征在于：所述过渡段（112）距离滚刷体轴心（202）的垂直高度H1小于15mm。
7.
根据权利要求6所述的吸尘器风动地刷，其特征在于：所述风道（30）包括位于前端的前风道（340）、与前风道（340）卡扣相连的软管（342）、以及与软管（342）相连的后风道（344）。
8.
一种吸尘器风动地刷，其特征在于其包括：具有滚刷室（120）的地刷座（10）、位于地刷座（10）后端的风道（30）、和收容在滚刷室（120）内的滚刷体（20），其中风道（30）通过一风道进风口（320）与滚刷室（120）的后方相连通，而滚刷室（120）在前方设有一进气通道（122），所述滚刷体（20）位于风道进风口（320）和进气通道（122）之间并通过进气通道（122）所流入的气流驱动旋转，该进气通道（122）的截面积小于150mm2，且进气通道（122）的高度H小于5mm。
9.
根据权利要求8所述的吸尘器风动地刷，其特征在于：该进气通道（122）包括进气口（1220）和出气口（1222），其中进气口（1220）的截面积大于出气口（1222）的截面积。
10.
根据权利要求9所述的吸尘器风动地刷，其特征在于：所述出气口（1222）的截面积小于等于75mm2，且出气口（1222）的高度H小于等于2mm。
11.
根据权利要求8所述的吸尘器风动地刷，其特征在于：所述地刷座（10）包括基座（12）、以及位于基座（12）上方的地刷上盖（11），所述滚刷体（20）设置在地刷上盖（11）和基座（12）之间，其中进气通道（122）的个数为两个，并以风道（30）为中心对称设置。
12.
根据权利要求11所述的吸尘器风动地刷，其特征在于：所述基座（12）还包括侧进气通道（124），该侧进气通道（124）包括侧进气口（1240）和侧出气口（1242），其中侧进气口（1240）的截面积小于侧出气口（1242）的截面积，所述侧进气口（1240）的截面积小于8mm2，而侧出气口（1242）的截面积小于18mm2。
13.
根据权利要求12所述的吸尘器风动地刷，其特征在于：所述基座（12）包括形成于两侧的地刷侧壁（14）、以及与侧进气通道（124）相连通并位于基座（12）底面的一凹部（126），其中所述侧进气通道（124）位于地刷侧壁（14）和滚刷室（120）之间。
14.
根据权利要求13所述的吸尘器风动地刷，其特征在于：所述凹部（126）由两侧边缘向底部延伸而形成，该两侧边缘包括靠近地刷侧壁（14）的外侧边缘（1260）、靠近滚刷室（120）的内侧边缘（1262），其中外侧边缘（1260）较内侧边缘（1262）更接近地面，并离地面高度要小于1mm。
15.
根据权利要求14所述的吸尘器风动地刷，其特征在于：所述凹部（126）的顶面与侧进气通道（124）的顶面存在高度差。
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| CN109381112A (zh) * | 2017-08-10 | 2019-02-26 | 添可电器有限公司 | 地刷及其清洗吸尘器 |
| CN110236451A (zh) * | 2018-03-08 | 2019-09-17 | 添可电器有限公司 | 地刷组件和吸尘器 |
| CN108402999A (zh) * | 2018-05-16 | 2018-08-17 | 珠海格力电器股份有限公司 | 滚刷及具有该滚刷的吸尘器 |
| CN109452909A (zh) * | 2018-12-26 | 2019-03-12 | 广东美的白色家电技术创新中心有限公司 | 地刷组件及扫地机器人 |
| CN109549563A (zh) * | 2018-12-29 | 2019-04-02 | 常熟市雷得双金属复合管业有限公司 | 用于刷辊的辊轴 |
| CN110811420A (zh) * | 2019-09-25 | 2020-02-21 | 苏州川欧电器有限公司 | 一种后方驱动、中间传动布局的清洁用地刷及其拆装方法 |
| CN111035310A (zh) * | 2019-12-09 | 2020-04-21 | 浙江工业大学 | 一种用于吸尘车前置螺旋旋流装置 |
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