WO2018099486A1 - 吸水刷头及具有其的干湿吸尘器 - Google Patents
吸水刷头及具有其的干湿吸尘器 Download PDFInfo
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- WO2018099486A1 WO2018099486A1 PCT/CN2017/114510 CN2017114510W WO2018099486A1 WO 2018099486 A1 WO2018099486 A1 WO 2018099486A1 CN 2017114510 W CN2017114510 W CN 2017114510W WO 2018099486 A1 WO2018099486 A1 WO 2018099486A1
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- WIPO (PCT)
- Prior art keywords
- brush head
- suction port
- water absorbing
- bracket
- air inlet
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Classifications
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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
- A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
Definitions
- the invention relates to a water absorbing brush head, in particular to a water absorbing brush head for a vacuum cleaner; the invention also relates to a dry and wet vacuum cleaner having the water absorbing brush head.
- the Chinese utility model patent document CN204889859U discloses a window scraping scraper, which comprises a scraping head housing, the scraping head housing has a suction passage, and the scraping head housing is provided with an upper scraping strip and a lower scraping strip, A suction port communicating with the suction passage is formed between the first face of the scraper strip and the first face of the lower scraper strip, and the second scraper strip is disposed on the second face of the first face thereof along the length of the lower scraper strip a plurality of channels or/and through holes arranged at intervals, the passage penetrates the front end surface of the lower scraper, the through hole penetrates the first side of the lower scraper, and the suction unit communicates with the suction passage to allow the suction unit to operate at the suction port Produces suction.
- the upper scraper strip and the lower scraper strip are received in the longitudinal direction of the housing of the water absorbing brush head.
- the gap width between the upper scraper strip and the lower scraper strip is a constant value, but in the suction operation of the water absorbing brush head, near the water absorbing brush head in the longitudinal direction of the water absorbing brush head The part of the center has better water absorption performance than the two end portions, resulting in the problem of cleanliness at both ends of the water absorbing brush head.
- the air inlet between the upper scraper and the lower scraper does not match the gradient ratio of the inlet air inlet area, so that the intake port area of the air inlet and the vacuum cleaner maximum efficiency point does not match, and the whole machine cannot be realized. Maximize efficiency.
- the technical problem to be solved by the present invention is to provide a water absorbing brush head having good edge proximity and high water absorption uniformity.
- the present invention provides a water absorbing brush head including a brush head housing having a suction passage communicating with a vacuum source for generating a suction flow, the brush head housing including a brush head
- the brush head is provided with a first scraper strip and a second scraper strip, and a suction port communicating with the suction passage is formed between the first scraper strip and the second scraper strip, wherein
- the first bar and the second bar are formed to protrude outward from the boundary of the brush head at least one end in a direction in which the first axis extends.
- the side edges of the first scraper strip and/or the second scraper strip have an angle ⁇ with the vertical direction.
- the angle ⁇ satisfies 5° ⁇ ⁇ ⁇ 15°.
- the present invention also provides a water absorbing brush head comprising a brush head housing having a suction passage communicating with a vacuum source for generating a suction flow, the brush head housing including a brush a head portion, the brush head is provided with a first scraper strip and a second scraper strip, and a suction port communicating with the suction passage is formed between the first scraper strip and the second scraper strip;
- the head includes a bracket including a bracket air inlet extending along a length thereof; wherein a fluid passage area per unit length of the suction port decreases from both ends thereof toward a center thereof, the bracket air inlet The fluid passage area per unit length decreases from its both ends toward the center.
- the change trend of the fluid passage area per unit length of the suction port is the same as the change trend of the fluid passage area per unit length of the bracket air inlet.
- the cumulative area increase of the suction port coincides with the cumulative area increase of the inlet of the bracket.
- the ratio of the cumulative area increase of the suction port to the cumulative area increase of the inlet of the bracket is a constant.
- the fluid passage area of the suction port coincides with the fluid passage area of the bracket air inlet.
- air flow guiding members are further disposed on both sides of the air inlet of the bracket, and the air flow guiding member defines the air inlet of the bracket as a trumpet shape.
- the suction port includes a plurality of spaced-apart suction unit units whose area decreases from both ends of the suction port toward the center.
- the total width of the suction port is larger than the head of the brush head, and the two sides protrude from the edge of the brush head shell, so that when the edge area such as the corner or the window frame is performed, the scraper can first When the brush head housing contacts the corner area, all corner areas can be cleaned without leaving a blind spot.
- Figure 1 is a schematic view of a water absorbing brush head of the present invention.
- Figure 2 is a rear elevational view of the absorbent head of the present invention.
- Figure 3 is a partial enlarged view of the portion P1 of Figure 2.
- Figure 4 is a cross-sectional view taken along line A-A of Figure 2;
- Figure 5 is a partial enlarged view of a portion P3 of Figure 4.
- Figure 6 is a bottom plan view of the absorbent head of the present invention.
- Figure 7 is a partial enlarged view of the portion P2 of Figure 6.
- Figure 8 is a schematic view of the stent in the absorbent brush head of the present invention.
- Figure 9 is a side elevational view of the stent of the absorbent brush head of the present invention.
- Figure 10 is a cross-sectional view taken along line B-B of Figure 9;
- Figure 11 is a top plan view of the stent of the absorbent brush head of the present invention.
- Figure 12 is a cross-sectional view showing the first scraper in the water absorbing brush head of the present invention.
- Figure 13 is a cross-sectional view showing a second scraper in the water absorbing brush head of the present invention.
- 1-brush head housing 11-suction port, 110-suction port unit, 12-brush head, 121-left wall, 122-right wall, 123-front wall, 13-connecting tube, 2-first strip 21-first main body portion, 22-first connecting portion, 23-first lip portion, 231-first convex portion, 232-second convex portion, 3-second scraping strip, 31-second main body portion, 32-second connection, 33-second lip, 4-bracket, 41-pin, 42-first mounting slot, 43-second mounting slot, 44-bracket air inlet, 441-airflow guide.
- a preferred embodiment of the absorbent brush head of the present invention includes a head housing 1 including a brush head 12 extending in the left-right direction, the brush head 12 forming a lower opening therein
- the brush head 12 has a substantially rectangular parallelepiped shape, and has a left wall 121, a right wall 122 opposite to the left wall 121, a front wall 123 connecting the front ends of the left wall 121 and the right wall 122, and A rear wall opposite to the front wall 123, a top wall is provided above the left wall 121, the right wall 122, the front wall 123, and the rear wall, and the left wall 121, the right wall 122, the front wall 123, and the rear wall are open below.
- the shape of the brush head 12 can be changed other shapes, and at least one of the left wall 121, the right wall 122, the front wall 123, the rear wall or the top wall is changed, such as increasing the arc surface, etc. .
- the head housing 1 further includes a connecting tube 13 extending rearward and upward from the top wall of the brush head 12.
- the connecting tube 13 has a tubular lumen, the lower end of which is in fluid communication with a cavity inside the brush head 12, the upper end of which is connected to a vacuum generating device.
- the water absorbing brush head of the present invention further includes a first scraper strip 2, a second scraper strip 3, and a bracket 4.
- the first wiper strip 2 and the second scraper strip 3 are both strip-shaped flexible strips.
- the bracket 4 is mounted in a cavity inside the brush head 12, and the first wiper strip 2 and the second scraper strip 3 are mounted below the bracket 4.
- the first scraper 2 and the second scraper 3 may also be directly mounted below the brush head 12 without the bracket 4, as long as the brush head 12 has a corresponding mounting structure.
- the bracket 4 is detachably coupled to the head housing 1, and in other embodiments, the bracket 4 is integrally formed with the head housing 1 or connected by a non-detachable connection.
- the outer shape of the bracket 4 is substantially adapted to the shape of the cavity inside the brush head 12.
- the two ends of the bracket 4 extend upwardly from the leg 41, and correspondingly, the top wall of the brush head 12 is provided with a card slot near the left wall 121 and the right wall 122, and the leg 41 is coupled with the card slot to fix the bracket 4 to the bracket 4 Below the brush head 12.
- the card slot is a through slot, and the leg 41 passes through the card slot from the lower side of the brush head 12 to engage the bracket 4 with the brush head 12.
- the bracket 4 can be fixed under the brush head 12 by other means, such as adhesive bonding, bolting, and the like.
- the bracket 4 includes a bracket air inlet 44 extending along its length direction, and the bracket air inlet 44 is much longer in the longitudinal direction than the dimension in the width direction thereof.
- the bracket 4 has a third axis M2 extending in the width direction thereof (ie, the front-rear direction) and a first axis N extending along the longitudinal direction thereof (ie, the left-right direction), as shown in FIG.
- the axis M2 is substantially symmetrical and substantially symmetrical about the first axis N, the bracket inlet 44 being disposed along the axis N and having a width in the direction of the third axis M2.
- the bracket 4 further includes a first mounting groove 42 and a second mounting groove 43 extending in the direction of the first axis N.
- the first mounting groove 42 and the second mounting groove 43 are located below the bracket air inlet 44, and in the extending direction of the third axis M2 of the bracket 4, the first mounting groove 42 and the second mounting groove 43 are respectively disposed at the bracket air inlet Front and rear sides of 44.
- the first mounting groove 42 and the second mounting groove 43 have the same shape and are symmetrically disposed below the bracket intake port 44. More specifically, taking the first mounting groove 42 as an example, the first mounting groove 42 has a substantially T-shaped cross section.
- first mounting groove 42 and the second mounting groove 43 may adopt other identical or different shapes as long as the installation requirements of the first scraper 2 and the second scraper 3 can be satisfied, of course, the first The wiper strip 2 and the second scraper strip 3 can also be mounted on the bracket 4 in other detachable or non-removable manners.
- the first barrage 2 includes a first body portion 21, and the first body portion 21 extends upwardly out of the first connecting portion 22, and the cross-sectional shape of the first connecting portion 22 matches the cross-sectional shape of the first mounting portion 42.
- the first body portion 21 extends obliquely forward and downward from the first lip portion 23.
- the first lip portion 23 has a first convex portion 231 toward one side (front side) of the oblique direction thereof, and the first lip portion 23 has a second convex portion 232 at a side (rear side) end facing away from the oblique direction thereof.
- the first convex portions 231 are spaced apart from each other in the longitudinal direction of the first scraper 2 (the extending direction of the third axis M2) on one end of the end of the first lip portion 23, and the second convex portion 232 is along the first The longitudinal direction of one of the wiper strips 2 (the extending direction of the third axis M2) is spaced apart from the other end of the end of the first lip portion 23, and the first convex portion 231 is disposed corresponding to the second convex portion 232.
- the first convex portion 231 and the second convex portion 232 may also be staggered.
- the second scraper strip 3 includes a second main body portion 31 that extends upwardly out of the second connecting portion 32, and the cross-sectional shape of the second connecting portion 32 matches the cross-sectional shape of the second mounting portion 43.
- the width of the second body portion 31 is reduced from the top to the bottom.
- the second body portion 31 is substantially inverted triangle. More specifically, the second body portion 31 is substantially an inverted isosceles triangle.
- the second body portion 31 has a hollow structure. The second body portion 31 extends downwardly out of the second lip portion 33.
- the first wiper strip 2 and the second scraper strip 3 are mounted in pairs below the brush head 12. Specifically, the first wiper strip 2 is mounted behind the bracket intake port 44, and the first lip portion 23 is inclined forward, and the second scraper strip 3 is mounted in front of the bracket intake port 44. A fluid passage is formed between the first wiper strip 2 and the second scraper strip 3.
- the first lip portion 23 is close to the second lip portion 33 due to the action of the vacuum generator and the first squeegee 2 and the second squeegee 3 are flexible materials. .
- the first lip portion 23 has the first convex portion 231 spaced apart from each other, so that the first convex portion 231 is adjacent to the second lip portion 33, and the suction port 11 for allowing fluid to pass therethrough is formed between the adjacent two first convex portions 231.
- a suction passage is formed from the suction port 11 to the connecting pipe 13, and the fluid enters between the first scraper 2 and the second scraper 3 from the suction port 11, and sequentially passes through the bracket intake port 44, the cavity inside the brush head 12, and the connection.
- the tube 13 eventually flows to the vacuum generating device.
- the water absorbing brush head of the present invention When the water absorbing brush head of the present invention is used, the water absorbing brush head is usually moved forward and backward along the extending direction of the third axis M2 to operate.
- the suction port 11 protrudes from the head housing 1 in the extending direction of the first axis N (i.e., the length extending direction of the suction port 11).
- the suction port 11 protrudes from the head housing 1 at both the left and right ends.
- the left and right sides of the water absorbing brush head have the same or similar structure, and the left side of the water absorbing brush head is taken as an example for description.
- the suction port 11 has a left side boundary S1 substantially perpendicular to the length extending direction of the brush head 12, and the left side boundary S1 of the suction port 11 is defined by the left side of the first scraper 2 and the left side of the second scraper 3 At least one of the definitions, the left wall of the head housing 1 has a left side border S2 that is substantially perpendicular to the direction in which the head portion 12 extends, and S1 is located on the left side of S2.
- the first wiper strip 2 has a left side edge that is inclined downward to the left
- the second wiper strip 3 has a left side edge that is inclined downward to the left, the left side of the first scraper strip 2 and the left side of the second scraper strip 3
- the side edges collectively define a suction opening that protrudes from the left side of the head housing 1.
- the upper edges of the first strip 2 and the second strip 3 are substantially flush with the left side border S2 of the head housing 1, and the left side and the vertical side of the first strip 2 and the second strip 3 are vertical
- the head housing 1 When the left side of the water absorbing brush head is cleaned, such as the left side corner, the head housing 1 does not interfere with the left side boundary S1 of the suction port 11 and is close to the left side wall, so that the left side corner can be sufficiently cleaned.
- the structure and configuration on the right side of the brush head housing 1 are the same as those on the left side, and will not be described again.
- the proximity of the left and right ends of the water brush can be improved, and the total width of the suction port is larger than the head of the brush head, and the two sides protrude from the edge of the brush head shell, so that when the edge area such as a corner or a window frame is performed, the scraper can first When the brush head housing contacts the corner area, all corner areas can be cleaned without leaving a blind spot.
- the fluid passage area per unit length of the suction port 11 gradually decreases from both ends toward the center.
- the adjacent two first convex portions 231 divide the suction port 11 between the first lip portion 23 and the second lip portion 33 to form a plurality of gaps, and define one of the gaps as one suction port unit.
- the suction port 11 is formed by a plurality of suction port units 110 that are spaced apart.
- the area of the suction port unit 110 gradually decreases from both ends of the suction port toward the center, and the area of the suction port unit 110 is adjusted by the change in the height of the first convex portion 231 and the change in the distance between the adjacent two first convex portions 231.
- the height of the first convex portion 231 gradually decreases from both ends toward the center, and the distance between the adjacent two first convex portions 231 does not change.
- the height of the first convex portion 231 is constant, and the distance between the adjacent two first convex portions 231 gradually decreases from both ends toward the center.
- the suction unit having the largest area is located at both ends of the suction port 11
- the area of the suction unit 110 having the largest area is 6.8 mm 2
- the area of the suction unit 110 having the smallest area is located at the center of the suction port 11.
- the area of the suction port unit 110 having the smallest area is 3.8 mm 2 . Since the flow velocity near the both ends of the suction port 11 is small, increasing the area of the suction port unit 110 at both ends of the suction port 11 enables the water flow rate when each of the suction port units 110 absorbs water to be substantially uniform.
- the fluid passage area per unit length of the bracket intake port 44 gradually decreases from both ends toward the center, and the change trend of the fluid passage area per unit length of the suction port 11 and the bracket intake port The change in fluid passage area over the length of 44 units is the same. Specifically, as shown in FIG. 11, the width of the bracket air inlet 44 gradually decreases from both ends (away from the third axis M2) toward the center (near the third axis M2).
- the total fluid intake port 11 is substantially equal (i.e., the sum of all of SA 1 inlet port 110 area units, referred to) in fluid communication with the bracket 44 through the intake port area (SA 2) through the area.
- the total fluid passage area of the suction port 11 is equal to the fluid passage area of the bracket air inlet 44, that is, .
- the cumulative area increase of the suction port 11 corresponds to the cumulative area increase of the bracket air inlet 44.
- the ratio of the cumulative area increase of the suction port 11 to the cumulative area of the stent inlet 44 is substantially constant.
- the suction port 11 is divided into n small segments of equal length along its length direction
- the bracket air inlet 44 is also divided into n small segments of equal length along its length direction, where n is any positive integer.
- the fluid passage area of the leftmost segment of the suction port 11 is x 1
- the fluid passage area of each small segment is x 2 , x 3 , ... from left to right
- the fluid passage area of the rightmost segment is x n .
- the fluid passage areas of the bracket air inlets 44 from left to right are y 1 , y 2 , ... y n , and .
- k is a constant
- i and j are integers
- k 1 .
- the first scraper strip 2 and the second scraper strip 3 are each substantially trapezoidal, and the trapezoidal lower bottom length L1 is substantially the length of the suction port 11,
- the trapped upper base length L2 is approximately the length of the bottom of the bracket air inlet 44.
- Air flow guiding members 441 are respectively disposed at the left and right ends of the bracket air inlet 44, and the air flow guiding member 441 extends obliquely upward from the left/right bottom portion of the bracket air inlet 44, and the upper end portion of the airflow guiding member 441 is more than the lower end portion thereof. Approaching the central axis of the bracket 4 (second axis M1).
- the airflow guide 441 defines the bracket air inlet 44 as a flared shape, and the top length L3 of the bracket air inlet 44 is smaller than the bottom length L2 of the bracket air inlet 44.
- the suction passage gradually decreases in the longitudinal direction of the suction head, that is, L1>L2>L3. Since the length of the bracket air inlet 44 varies in the vertical direction, the above-described SA 2 is an area defined by a plane perpendicular to the flow direction of the air flow from the bottom of the bracket air inlet 44 to the top thereof.
- This embodiment can improve the uniformity of the water squeegee wiper. Since the flow velocity of the air inlet is far from the center of the water absorbing brush head (ie, near the both ends), increasing the suction port area at both ends can make the water flow rate of each inlet water absorbing substantially the same.
- the solution can improve the defect of the uneven effect of the traditional water absorbing brush head, and the area distribution of the suction port and the air inlet of the bracket can distribute the vacuum degree and the flow rate of the vacuum cleaner well, and the first scraper strip and the second scraper strip can cooperate well.
- the water is scraped into the mouthpiece, which greatly improves the efficiency of the water brush.
- the total area of the suction port is basically the same as the air inlet area of the maximum efficiency point of the whole machine, so that the maximum efficiency of the vacuum cleaner can be obtained when the water absorption brush head is used.
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Abstract
一种吸水刷头，包括刷头壳体（1），所述刷头壳体（1）具有与真空源连通用以产生吸引流的吸入通道，所述刷头壳体（1）包括刷头部（12），所述刷头部（12）设有第一刮条（2）和第二刮条（3），所述第一刮条（2）和所述第二刮条（3）之间形成与所述吸入通道相连通的吸入口（11），所述第一刮条（2）和所述第二刮条（3）形成为在第一轴线（N）的延伸方向上至少一端向外突出于所述刷头部（12）的边界。该吸水刷头能够提高水刷左右两端的接近性，吸入口的总宽度大于刷头壳体，两侧突出于刷头壳体边缘，这样在进行墙角或者窗框等边缘区域时，刮条能够先于刷头壳体接触到角落区域，能够对角落区域全方面的清洁而不留盲区。
Description
本发明涉及一种吸水刷头，具体涉及一种真空吸尘器用吸水刷头；本发明还涉及一种具有该吸水刷头的干湿吸尘器。
在现有技术中，已有安装在真空吸尘器上专门用于从硬表面（例如玻璃表面）吸取液体空气混合物的吸水刷头，该种吸水刷头具有上刮条和下刮条，上刮条和下刮条之间具有间隙以形成抽吸口。较为典型的，中国实用新型专利文献CN204889859U公开了一种窗刮的刮头，包括刮头壳体，刮头壳体具有吸入通道，刮头壳体上设置有上刮条和下刮条，上刮条的第一面和下刮条的第一面之间形成与吸入通道相连通的抽吸口，下刮条背对其第一面的第二面上设置有沿着下刮条长度方向间隔排布的若干渠道或/和通孔，渠道贯穿下刮条的前端面，通孔贯穿下刮条的第一面，抽吸机组与吸入通道连通以使抽吸机组工作时于抽吸口产生吸力。通常上刮条和下刮条在长度方向上收于吸水刷头的壳体内，使用这种吸水刷头在清理墙角、窗框边缘等区域时，会在边缘形成清洁盲区，导致边缘无法被方便地清理。此外，通常的吸水刷头中，上刮条和下刮条之间的间隙宽度为一常值，然而在吸水刷头进行抽吸作业时，在吸水刷头的长度方向上，靠近吸水刷头中心的部分较两端部分的吸水性能好，导致吸水刷头两端存在清洁不净的问题。进一步地，上刮条和下刮条之间的进气口与支架进气口面积渐变比例不匹配，导致进气口与吸尘器整机最大效率点的进气口面积不匹配，不能实现整机效率最大化。
本发明要解决的技术问题是提供一种边缘接近性好、吸水均匀度高的吸水刷头。
为解决上述技术问题，本发明提供一种吸水刷头，包括刷头壳体，所述刷头壳体具有与真空源连通用以产生吸引流的吸入通道，所述刷头壳体包括刷头部，所述刷头部设有第一刮条和第二刮条，所述第一刮条和所述第二刮条之间形成与所述吸入通道相连通的吸入口，其特征是，所述第一刮条和所述第二刮条形成为在第一轴线的延伸方向上至少一端向外突出于所述刷头部的边界。
优选的，所述第一刮条和/或所述第二刮条的侧边与竖直方向具有夹角α。
优选的，所述夹角α满足5°≤α≤15°。
优选的，所述夹角α满足α= 10°。
为解决上述技术问题，本发明还提供一种吸水刷头，包括刷头壳体，所述刷头壳体具有与真空源连通用以产生吸引流的吸入通道，所述刷头壳体包括刷头部，所述刷头部设有第一刮条和第二刮条，所述第一刮条和所述第二刮条之间形成与所述吸入通道相连通的吸入口；所述刷头部包括支架，所述支架包括沿其长度方向延伸的支架进气口；其特征是，所述吸入口单位长度上的流体通过面积从其两端向中心减小，所述支架进气口单位长度上的流体通过面积从其两端向中心减小。
优选的，所述吸入口单位长度上的流体通过面积的变化趋势与所述支架进气口单位长度上的流体通过面积的变化趋势相同。
优选的，沿所述第一轴线延伸方向的一侧到另一侧，所述吸入口的累积面积增长幅度与所述支架进气口的累积面积增长幅度一致。
优选的，所述吸入口的累积面积增长幅度与所述支架进气口的累积面积增长幅度的比之为一常数。
优选的，所述吸入口的流体通过面积与所述支架进气口的流体通过面积一致。
优选的，所述支架进气口的两侧还设有气流引导件，所述气流引导件将所述支架进气口限定为喇叭状。
优选的，所述吸入口包括多个间隔设置的吸入口单元，所述吸入口单元的面积从所述吸入口两端向中心减小。
本发明能够达到的技术效果包括如下方面。
（1）能够提高水刷左右两端的接近性，吸入口的总宽度大于刷头壳体，两侧突出于刷头壳体边缘，这样在进行墙角或者窗框等边缘区域时，刮条能够先于刷头壳体接触到角落区域，能够对角落区域全方面的清洁而不留盲区。
（2）能够提高吸水刷头刮水的均匀程度。由于远离吸水刷头中心（即靠近两端）的进气口流速小，增大两端的吸口面积能使得每个进口吸水时的水流量基本一致。该方案能够改善传统吸水刷头刮水效果不均匀的缺陷，吸入口和支架进气口的面积分配能够良好的分配吸尘器的真空度和流量，第一刮条和第二刮条配合能很好的把水刮入吸口，使得水刷的使用效率大大提高。
图1为本发明的吸水刷头的示意图。
图2为本发明的吸水刷头的后视图。
图3为图2中P1部分的局部放大图。
图4为图2中A-A剖视图。
图5为图4中P3部分的局部放大图。
图6为本发明的吸水刷头的仰视图。
图7为图6中P2部分的局部放大图。
图8为本发明的吸水刷头中支架的示意图。
图9为本发明的吸水刷头中支架的侧视图。
图10为图9中B-B剖视图。
图11为本发明的吸水刷头中支架的俯视图。
图12为本发明的吸水刷头中第一刮条的断面图。
图13为本发明的吸水刷头中第二刮条的断面图。
1-刷头壳体，11-吸入口，110-吸入口单元，12-刷头部，121-左壁，122-右壁，123-前壁，13-连接管，2-第一刮条，21-第一主体部，22-第一连接部，23-第一唇部，231-第一凸部，232-第二凸部，3-第二刮条，31-第二主体部，32-第二连接部，33-第二唇部，4-支架，41-卡脚，42-第一安装槽，43-第二安装槽，44-支架进气口，441-气流引导件。
以下将结合附图所示的具体实施方式对本发明进行详细描述。但这些实施方式并不限制本发明，本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本发明的保护范围内。
本发明吸水刷头的一优选实施方式如图1所示，包括刷头壳体1，刷头壳体1包括沿左右方向延伸的刷头部12，刷头部12在其内部形成一个下部开口的腔体，在本实施方式中，刷头部12的外形大致呈长方体，其具有左壁121、与左壁121相对的右壁122、连接左壁121和右壁122前端的前壁123和与前壁123相对的后壁，左壁121、右壁122、前壁123和后壁的上方设有顶壁，左壁121、右壁122、前壁123和后壁的下方敞开。在其他实施方式中，刷头部12的外形可变化外其他形状，在左壁121、右壁122、前壁123、后壁或顶壁中至少任意一个壁做出变化，如增加弧面等。刷头壳体1还包括由刷头部12的顶壁向后上方延伸出的连接管13。连接管13具有管状内腔，该管状内腔的下端与刷头部12内部的腔体流体连通，该管状内腔的上端连接至真空发生装置。
本发明的吸水刷头还包括第一刮条2、第二刮条3和支架4。第一刮条2和第二刮条3均为长条状的柔性刮条。支架4安装在刷头部12内部的腔体中，第一刮条2和第二刮条3安装在支架4的下方。在其他实施方式中，第一刮条2和第二刮条3也可不通过支架4而直接安装在刷头部12的下方，只要刷头部12具有相应的安装结构即可。在本实施方式中，支架4与刷头壳体1可拆卸地连接，在另外一些实施方式中，支架4与刷头壳体1一体成型或使用不可拆卸的连接方式连接。
如图8~图11，支架4的外形大致与刷头部12内部的腔体形状相适配。支架4的两端向上延伸出卡脚41，相应地在刷头部12的顶壁靠近左壁121和右壁122的位置设有卡槽，卡脚41与卡槽配合连接使支架4固定于刷头部12的下方。在本实施方式中，卡槽为通槽，卡脚41从刷头部12的下方向上穿过卡槽，使支架4卡接与刷头部12。在其他实施方式中，支架4可通过其他方式固定于刷头部12下方，如采用胶黏剂黏接、采用螺栓螺接等。
支架4包括沿其长度方向延伸的支架进气口44，支架进气口44长度方向的尺寸上远大于其宽度方向上的尺寸。在本实施方式中，支架4具有沿其宽度方向（即前后方向）延伸的第三轴线M2和沿其长度方向（即左右方向）延伸的第一轴线N，如图11，支架4关于第三轴线M2大致对称且关于第一轴线N大致对称，支架进气口44沿轴线N设置，并在第三轴线M2的方向上具有一定宽度。
支架4还包括沿第一轴线N方向延伸的第一安装槽42和第二安装槽43。第一安装槽42和第二安装槽43位于支架进气口44的下方，且在支架4的第三轴线M2延伸方向上，第一安装槽42和第二安装槽43分设在支架进气口44的前后两侧。在本实施方式中，如图8、图9，第一安装槽42和第二安装槽43的形状相同，并对称地设置在支架进气口44的下方。更为具体地，以第一安装槽42为例，第一安装槽42的截面大致呈T型。在其他实施方式中，第一安装槽42与第二安装槽43可采用其他相同或不同的形状，只要能够满足第一刮条2和第二刮条3的安装要求即可，当然，第一刮条2和第二刮条3也可采用其他可拆卸或不可拆卸的方式安装在支架4上。
如图12，第一刮条2包括第一主体部21，第一主体部21向上延伸出第一连接部22，第一连接部22的截面形状与第一安装部42的截面形状向匹配。第一主体部21向前下方斜向延伸出第一唇部23。第一唇部23朝向其倾斜方向一侧（前侧）末端具有第一凸部231，第一唇部23背向其倾斜方向一侧（后侧）末端具有第二凸部232。如图6、图7，第一凸部231沿第一刮条2的长度方向（第三轴线M2的延伸方向）间隔地分布在第一唇部23末端的一面，第二凸部232沿第一刮条2的长度方向（第三轴线M2的延伸方向）间隔地分布在第一唇部23末端的另一面，且第一凸部231与第二凸部232相对应地设置。在其他实施方式中，第一凸部231与第二凸部232也可交错设置。
如图13，第二刮条3包括第二主体部31，第二主体部31向上延伸出第二连接部32，第二连接部32的截面形状与第二安装部43的截面形状相匹配。第二主体部31的宽度由上向下减小。具体地，第二主体部31大致呈倒三角型。更为具体地，第二主体部31大致呈倒置的等腰三角形。优选地，第二主体部31具有空心结构。第二主体部31向下延伸出第二唇部33。
如图4、图5，第一刮条2和第二刮条3成对地安装在刷头部12的下方。具体地，第一刮条2安装在支架进气口44的后方，且第一唇部23向前倾斜，第二刮条3安装在支架进气口44的前方。在第一刮条2和第二刮条3之间形成了流体通道。当吸水刷头与真空发生装置连接并进行抽吸作业时，由于真空发生器的作用且第一刮条2、第二刮条3为柔性材料，第一唇部23朝向第二唇部33贴近。第一唇部23具有间隔分布的第一凸部231，所以第一凸部231贴近第二唇部33，而相邻两个第一凸部231之间就形成了允许流体通过的吸入口11，如图6、图7。从吸入口11到连接管13形成吸入通道，流体从吸入口11进入第一刮条2与第二刮条3之间，依次经由支架进气口44、刷头部12内部的腔体和连接管13，最终流向真空发生装置。
在使用本发明的吸水刷头作业时，通常将吸水刷头沿着第三轴线M2的延伸方向进行前后移动进行操作。
实施例1
在本实施例中，在第一轴线N的延伸方向（即吸入口11的长度延伸方向）上，吸入口11的至少一端突出于刷头壳体1。在本实施例中，吸入口11在左右两端均突出于刷头壳体1。如图2、图3，由于吸水刷头左右两侧结构相同或相似，以吸水刷头的左侧为例进行说明。吸入口11具有大致垂直于刷头部12长度延伸方向的左侧边界S1，吸入口11的左侧边界S1由第一刮条2的左侧边和第二刮条3的左侧边中的至少一个限定，刷头壳体1的左壁具有大致垂直于刷头部12长度延伸方向的左侧边界S2，S1位于S2的左侧。具体地，第一刮条2具有向左下方倾斜的左侧边，第二刮条3具有向左下方倾斜的左侧边，第一刮条2的左侧边和第二刮条3的左侧边共同限定了突出于刷头壳体1左侧的吸入口。优选的，第一刮条2和第二刮条3的上边缘与刷头壳体1的左侧边界S2大致平齐，第一刮条2和第二刮条3的左侧边与竖直方向具有夹角α，且0≤α＜90°，更优选的，5°≤α≤15°，在本实施例中，α= 10°。当吸水刷头的左侧进行角落清洁，如左侧阴角时，刷头壳体1不会干扰吸入口11的左侧边界S1贴近左侧墙壁，使左侧阴角能够得到充分地清洁。刷头壳体1右侧的结构和构造与左侧相同，不再赘述。
本实施例能够提高水刷左右两端的接近性，吸入口的总宽度大于刷头壳体，两侧突出于刷头壳体边缘，这样在进行墙角或者窗框等边缘区域时，刮条能够先于刷头壳体接触到角落区域，能够对角落区域全方面的清洁而不留盲区。
实施例2
在本实施例中，吸入口11单位长度上的流体通过面积从两端向中心逐渐减小。具体地，如图6，相邻两个第一凸部231将第一唇部23和第二唇部33之间的吸入口11分隔形成多个间隙，将一个该间隙定义为一个吸入口单元110，吸入口11由多个间隔设置的吸入口单元110形成。吸入口单元110的面积从吸入口两端向中心逐渐减小，吸入口单元110的面积由第一凸部231高度的变化和相邻两个第一凸部231之间距离的变化调节。在本实施例中，第一凸部231的高度从两端向中心逐渐减小，相邻两个第一凸部231之间的距离不变。在另外的实施例中，第一凸部231的高度不变，相邻两个第一凸部231之间的距离从两端向中心逐渐减小。当然，也可以同时改变第一凸部231的高度和相邻两个第一凸部231之间的距离，只要使吸入口单元110的面积从两端向中心逐渐减小即可。在本实施例中，面积最大的吸入口单元位于吸入口11的两端，具有最大面积的吸入口单元110的面积为6.8mm
2，最小面积的吸入口单元110的面积位于吸入口11的中心，具有最小面积的吸入口单元110的面积为3.8mm
2。由于靠近吸入口11两端的流速小，增大吸入口11两端吸入口单元110的面积能使得每个吸入口单元110吸水时的水流量基本一致。
在本实施例中，支架进气口44单位长度上的流体通过面积从两端向中心逐渐减小，且所述吸入口11单位长度上的流体通过面积的变化趋势与所述支架进气口44单位长度上的流体通过面积的变化趋势相同。具体地，如图11，支架进气口44的宽度从两端（远离第三轴线M2）向中心（靠近第三轴线M2）逐渐减小。
在本实施例中，吸入口11的总流体通过面积（即所有吸入口单元110面积的总和，记为
SA
1）与支架进气口44的流体通过面积（
SA
2）大致相等。优选的，吸入口11的总流体通过面积与支架进气口44的流体通过面积相等，即
。更为优选的，从吸水刷头沿其长度方向的一侧到另一侧，如从左侧到右侧，吸入口11的累积面积增长与支架进气口44的累积面积增长相对应。优选的，吸入口11的累积面积增长幅度与支架进气口44的累积面积增长幅度的比值大致为一常数。具体的，假设将吸入口11沿其长度方向分为长度相等的
n个小段，同样将支架进气口44沿其长度方向分为长度相等的
n个小段，这里
n为任意正整数。记吸入口11最左侧小段的流体通过面积为
x
1，从左向右依次记各小段的流体通过面积为
x
2、
x
3、……，最右侧小段的流体通过面积为
x
n，且
。同理，记支架进气口44从左向右各小段的流体通过面积为
y
1、
y
2、……
y
n，且
。对于任意整数
m，这里1≤
m≤
n，有
，
k为常数，
i、
j为整数，且1≤
i≤
m，1≤
j≤
m。特别地，
k = 1 。
进一步地，在本实施例中，如图2、图6、图10，第一刮条2和第二刮条3均大致呈梯形，该梯形的下底长度L1大致为吸入口11的长度，该梯形的上底长度L2大致为支架进气口44底部的长度。在支架进气口44的左右两端分别设有气流引导件441，气流引导件441由支架进气口44的左/右侧底部斜向上延伸，气流引导件441的上端部较其下端部更接近支架4的中心轴线（第二轴线M1）。如此，气流引导件441将支架进气口44限定为喇叭状，支架进气口44的顶部长度L3小于支架进气口44的底部长度L2。从整体上看，由吸入口11到支架进气口顶部，吸入通道在吸水刷头的长度方向上逐渐减小，即L1＞L2＞L3。由于支架进气口44在竖直方向上的长度存在变化，所以上述
SA
2为从支架进气口44底部到其顶部任意一个垂直于气流流动方向的平面所限定的面积。
本实施例能够提高吸水刷头刮水的均匀程度。由于远离吸水刷头中心（即靠近两端）的进气口流速小，增大两端的吸口面积能使得每个进口吸水时的水流量基本一致。该方案能够改善传统吸水刷头刮水效果不均匀的缺陷，吸入口和支架进气口的面积分配能够良好的分配吸尘器的真空度和流量，第一刮条和第二刮条配合能很好的把水刮入吸口，使得水刷的使用效率大大提高。吸入口的总面积与整机最大效率点的进风口面积基本一致，使得吸水刷头使用时能获得吸尘器最大效率。
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，它们并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。
Claims (13)
- 一种吸水刷头，包括刷头壳体（1），所述刷头壳体（1）具有与真空源连通用以产生吸引流的吸入通道，所述刷头壳体（1）包括刷头部（12），所述刷头部（12）设有第一刮条（2）和第二刮条（3），所述第一刮条（2）和所述第二刮条（3）之间形成与所述吸入通道相连通的吸入口（11），其特征是，所述第一刮条（2）和所述第二刮条（3）形成为在第一轴线（N）的延伸方向上至少一端向外突出于所述刷头部（12）的边界。
- 如权利要求2所述的吸水刷头，其特征是，所述第一刮条（2）和/或所述第二刮条（3）的侧边与竖直方向具有夹角α。
- 如权利要求2所述的吸水刷头，其特征是，所述夹角α满足5°≤α≤15°。
- 如权利要求2所述的吸水刷头，其特征是，所述夹角α满足α= 10°。
- 如权利要求1所述的吸水刷头，其特征是，所述吸入口（11）单位长度上的流体通过面积从其两端向中心减小。
- 如权利要求5所述的吸水刷头，其特征是，所述吸入口（11）包括多个间隔设置的吸入口单元（110），所述吸入口单元（110）的面积从所述吸入口（11）两端向中心减小,所述第一刮条（2）包括第一唇部（23），所述第二刮条（3）包括与所述第一唇部（23）相对的第二唇部（33）；所述第一唇部（23）朝向所述第二唇部（33）的一面包括间隔设置的多个第一凸部（231），任意相邻两个所述第一凸部（231）之间形成吸入口单元（110）。
- 如权利要求5所述的吸水刷头，其特征是，所述刷头部（12）包括支架（4）；所述支架（4）包括沿其长度方向延伸的支架进气口（44），所述第一刮条（2）和第二刮条（3）设置在所述支架进气口（44）的两侧，所述吸入口（11）与所述支架进气口（44）流体连通。
- 如权利要求7所述的吸水刷头，其特征是，所述吸入口（11）单位长度上的流体通过面积的变化趋势与所述支架进气口（44）单位长度上的流体通过面积的变化趋势相同。
- 如权利要求7所述的吸水刷头，其特征是，沿所述第一轴线（N）延伸方向的一侧到另一侧，所述吸入口（11）的累积面积增长幅度与所述支架进气口（44）的累积面积增长幅度一致。
- 如权利要求9所述的吸水刷头，其特征是，所述吸入口（11）的累积面积增长幅度与所述支架进气口（44）的累积面积增长幅度的比之为一常数。
- 如权利要求9所述的吸水刷头，其特征是，所述吸入口（11）的流体通过面积与所述支架进气口（44）的流体通过面积一致。
- 如权利要求7所述的吸水刷头，其特征是，所述支架进气口（44）的两侧还设有气流引导件（441），所述气流引导件（441）将所述支架进气口（44）限定为喇叭状。
- 一种干湿吸尘器，其特征是，包括如权利要求1~12任意一项所述的吸水刷头。
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| WO2018099486A1 true WO2018099486A1 (zh) | 2018-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2017/114510 WO2018099486A1 (zh) | 2016-12-02 | 2017-12-04 | 吸水刷头及具有其的干湿吸尘器 |
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| WO (1) | WO2018099486A1 (zh) |
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| CN110693395A (zh) * | 2019-10-15 | 2020-01-17 | 广东博智林机器人有限公司 | 用于清扫机器人的吸水组件和具有其的清扫机器人 |
| CN112826359A (zh) * | 2019-11-25 | 2021-05-25 | 苏州市春菊电器有限公司 | 一种具有新型集水条的擦窗机刷头 |
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