EP3549503B1 - Wasserabsorptionsbürstenkopf und nass-/trockenstaubsauger damit - Google Patents

Wasserabsorptionsbürstenkopf und nass-/trockenstaubsauger damit Download PDF

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Publication number
EP3549503B1
EP3549503B1 EP17875326.5A EP17875326A EP3549503B1 EP 3549503 B1 EP3549503 B1 EP 3549503B1 EP 17875326 A EP17875326 A EP 17875326A EP 3549503 B1 EP3549503 B1 EP 3549503B1
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EP
European Patent Office
Prior art keywords
suction inlet
suction
fluid
squeegee
support
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Active
Application number
EP17875326.5A
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English (en)
French (fr)
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EP3549503A1 (de
EP3549503A4 (de
Inventor
Zhao Kong
Haiping Liu
Xin Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Cleva Electric Appliance Co Ltd
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Suzhou Cleva Electric Appliance Co Ltd
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Priority claimed from PCT/CN2017/114510 external-priority patent/WO2018099486A1/zh
Publication of EP3549503A1 publication Critical patent/EP3549503A1/de
Publication of EP3549503A4 publication Critical patent/EP3549503A4/de
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Classifications

    • 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
    • A47L1/00—Cleaning windows
    • 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
    • A47L9/0693—Specially shaped nozzles, e.g. for cleaning radiators, tubes, fans or the like; Dusters
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid

Definitions

  • This invention relates to a fluid suction nozzle, and more particularly relates to a fluid suction nozzle for a vacuum cleaner. This invention further relates to a dry-wet vacuum cleaner comprising the fluid suction nozzle.
  • a fluid suction nozzle mounted on a vacuum cleaner specially for drawing a liquid-air mixture from a hard surface such as a glass surface.
  • a fluid suction nozzle has an upper squeegee and a lower squeegee, between which there is a gap forming a suction inlet.
  • Chinese utility model patent document CN204889859U discloses a suction nozzle of a vacuum cleaner for window, including a nozzle housing in which is defined a suction passage.
  • the nozzle housing is provided with an upper squeegee and a lower squeegee, and there is defined a suction inlet that communicates with the suction passage between the first surface of the upper squeegee and the first surface of the lower squeegee.
  • On the second side opposite to the first side of the lower squeegee is provided a plurality of channels or/and through holes configured along a length of the lower squeegee.
  • the channel goes through the front end surface of the lower squeegee, the through holes run through the first side of the lower squeegee, and the suction unit communicating with the suction passage would generate a suction force near the suction inlet when in operation.
  • both ends of the squeegee in length direction are enclosed within the range of the nozzle housing.
  • the portion near the midst of the fluid suction nozzle has better suction performance than the portion near the ends, resulting in a problem that both ends of the fluid suction nozzle cannot be thoroughly cleaned.
  • the ratios of area gradual variation are not matched with each other between the suction inlet formed by the upper the lower squeegees and that provided on the support, such that the area of suction inlet does not match with the maximum efficiency point of the entire vacuum cleaner. As such, the overall efficiency cannot be maximized.
  • EP-A-2499953 discloses a floor treatment device for cleaning a subfloor comprising a brush box, a first suction strip integrated into the brush box, a second suction strip which is arranged downstream of the brush box and a treatment member device which is arranged between the first suction strip and the second suction strip.
  • the second suction strip is pivotable to the left and/or to the right parallel to the subfloor between two maximum pivot positions, relative to the brush box and in the maximum pivot positions of the second suction strip to the left or to the right, the second suction strip is in contact with the first suction strip at the respective end portions thereof.
  • the variation tendency of the area per unit length of the suction inlet the fluid passes through is the same as of that the area per unit length of
  • the cumulative area increment of the suction inlet coincides with the cumulative area increment of the support suction inlet.
  • the ratio of the cumulative area increment of the suction inlet to the cumulative area increment of the support suction inlet is a constant.
  • the area of the suction inlet the fluid passes through coincides with the area of the support suction inlet the fluid passes through.
  • At least one airflow guiding member is further disposed on both sides of the support suction inlet, and the airflow guiding member defines the support suction inlet as trumpet-shaped.
  • the suction inlet includes a plurality of suction inlet units spaced apart from each other and the area of the suction inlet units decreases from both ends toward the midst.
  • a total width of the suction inlet is greater than the nozzle housing, and both sides of the suction inlet protrude from the edges of the nozzle housing, so that when cleaning edges such as a corner or a window frame, the squeegees can reach the corner area before the nozzle housing do, resulting in all corner areas being cleaned up without leaving a blind spot.
  • the suction uniformity of the fluid suction nozzle can be improved. Since the flow rate away from the midst of the suction inlet (i.e., adjacent to both ends) is low, increasing the suction inlet area at both ends can make the flow of each suction inlet unit substantially the same when sucking.
  • This solution can overcome the shortcoming of the suction non-uniformity of the traditional fluid suction nozzle.
  • the area design of the suction inlet and the support suction inlet can well distribute the vacuum degree and flow of the vacuum cleaner well, and the first squeegee and the second squeegee can work in parallel thereby well scraping the water into the suction inlet, which greatly improves the working efficiency of the suction nozzle.
  • the fluid suction nozzle includes a nozzle housing 1.
  • the nozzle housing 1 includes a head portion 12 extending in left-right direction and in which a cavity with a lower opening is formed.
  • the contour of the head portion 12 is substantially a cuboid, and comprises 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.
  • the cavity surrounded by the left wall 121, the right wall 122, the front wall 123, and the rear wall are open at the lower part.
  • the head portion 12 can be changed into other shapes. Specifically, at least one of the left wall 121, the right wall 122, the front wall 123, the rear wall or the top wall may be changed; for example, a curved surface and the like may be added.
  • the head housing 1 further includes a connecting tube 13 that extends rearward and upward from the top wall of the head portion 12.
  • the connecting tube 13 has a tubular cavity, which has lower end that is in fluid communication with the cavity inside the head portion 12, and the upper end of the tubular cavity is configured to fluid communicate with a vacuum generator.
  • the fluid suction nozzle according to the present invention further includes a first squeegee 2, a second squeegee 3, and a support 4.
  • the first squeegee 2 and the second squeegee 3 are both strip-shaped flexible squeegees.
  • the support 4 is mounted in the cavity inside the head portion 12, and the first squeegee 2 and the second squeegee 3 are mounted below the support 4.
  • the first squeegee 2 and the second squeegee 3 may also be directly mounted below the head portion 12 without the support 4, as long as the head portion 12 has a corresponding mounting structure.
  • the support 4 is detachably connected to the nozzle housing 1.
  • the support 4 may also be integrally formed with or non-detachably connected to the nozzle housing 1.
  • the external shape of the support 4 is substantially adapted to the shape of the cavity inside the head portion 12.
  • Twosnap hooks 41 are configured to be the outstretched portions respectively extending upwardly from the two ends of the support 4, and correspondingly, the top wall of the head portion 12 is provided with two snap slots respectively.
  • the snap hook 41 is connected to the snap slot to fix the support 4in or below the head portion 12.
  • the snap slot is a through slot, and the snap hook 41 passes through the snap slot from the lower side of the head portion 12 to engage the support 4 with the head portion 12.
  • the support 4 can be fixed with the head portion 12 by other means, such as sticking by an adhesive, bolting by a bolt, or the like.
  • the support 4 includes a support suction inlet 44 extending along the direction of the length thereof, and the length dimension of the support suction inlet 44is much larger than the width dimension thereof.
  • the support 4 has a third axis M2 extending along the width (i.e., a front-rear direction) thereof and a first axis N extending along the length (i.e., a left-right direction) thereof.
  • the support 4 is substantially symmetrical about the third axis M2 and is substantially symmetrical about the first axis N.
  • the support suction inlet 44 is disposed along the axis N and has a certain width in the direction of the third axis M2.
  • the support 4 further includes a first mounting groove 42 and a second mounting groove 43 extending along the direction of the first axis N.
  • the first mounting groove 42 and the second mounting groove 43 are located below the support suction inlet 44, and along the extending direction of the third axis M2 of the support 4, the first mounting groove 42 and the second mounting groove 43 are respectively disposed at front and rear sides of the support suction inlet 44.
  • the first mounting groove 42 and the second mounting groove 43 have the same shape and are symmetrically disposed below the support suction inlet 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 squeegee 2 and the second squeegee 3 can be satisfied.
  • first squeegee 2 and the second squeegee 3 may also be mounted on the support 4 in other detachable or non-detachable manners.
  • the first squeegee 2 includes a first main body 21 extending upwardly to form a first connecting portion 22, and the cross-sectional shape of the first connecting portion 22 matches that of the first mounting portion 42.
  • the first main body 21 extends obliquely forward and downward to form the first lip 23.
  • the first lip 23 has a first convex portion 231 at the end of the side (front side) facing toward the oblique direction thereof, and has a second convex portion 232 at the end of the side (rear side) facing away from the oblique direction thereof.
  • the first convex portions 231 are spaced apart from each other on the side of the end of the first lip 23 along the length (the extending direction of the third axis M2) of the first squeegee 2.
  • the second convex portions 232 are spaced apart from each other on the other side of the end of the first lip 23 along the length (the extending direction of the third axis M2) of the first squeegee 2.
  • 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 arranged in a staggered manner.
  • the second squeegee 3 includes a second main body 31 extending upwardly to form a second connecting 32, and the cross-sectional shape of the second connecting portion 32 matches that of the second mounting portion 43.
  • the width of the second main body 31 is reduced from the top to the bottom.
  • the second main body 31 is substantially inverted triangle-shaped. More specifically, the second main body 31 is substantially inverted isosceles triangle-shaped.
  • the second main body 31 has a hollow structure. The second main body 31 extends downwardly to form the second lip 33.
  • the first squeegee 2 and the second squeegee 3 are mounted in pairs below the head portion 12. Specifically, the first squeegee 2 is mounted behind the support suction inlet 44, and the first lip 23 is inclined forward and the second squeegee 3 is mounted in front of the support suction inlet 44. A fluid passage is formed between the first squeegee 2 and the second squeegee 3. When the fluid suction nozzle is connected to the vacuum generator and in operation, the first lip 23 would move toward the second lip 33 under the action of the vacuum generator because the first squeegee 2 and the second squeegee 3 are of a flexible material.
  • the first lip 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 33, and a suction inlet 11 for allowing fluid to pass through is formed between adjacent two first convex portions 231, as illustrated in FIG 6 and FIG 7 .
  • a suction passage is formed from the suction inlet 11 to the connecting tube 13. The fluid enters between the first squeegee 2 and the second squeegee 3 via the suction inlet 11, and sequentially passes through the support suction inlet 44, the cavity inside the head portion 12, and the connecting tube 13, and eventually flows to the vacuum generator.
  • the fluid suction nozzle of the present invention When in operation, the fluid suction nozzle of the present invention is usually moved forward and backward along the extending direction of the third axis M2 to be operated.
  • the suction inlet 11 protrudes from the nozzle housing 1 along the extending direction (i.e., the length extending direction of the suction inlet 11) of the first axis N.
  • the suction inlet 11 protrudes from the nozzle housing 1 at both the left and right ends.
  • the left and right sides of the fluid suction nozzle have the same or similar structure, and the left side of the fluid suction nozzle is taken as an example for description herein.
  • the suction inlet 11 has a left side boundary S1 substantially perpendicular to the length extending direction of the head portion 12, and the left side boundary S1 of the suction inlet 11 is defined by at least one of the left side edge of the first squeegee 2 and the left side edge of the second squeegee 3.
  • the left wall of the nozzle housing 1 has a left side boundary S2 substantially perpendicular to the length extending direction of the head portion 12, and the S1 is at the left side of the S2.
  • the first squeegee 2 has a left side edge that is inclined downward to the left
  • the second squeegee 3 has a left side edge that is inclined downward to the left.
  • the left side edge of the first squeegee 2 and the left side edge of the second squeegee 3 collectively define the suction inlet portion that protrudes from the left side of the nozzle housing 1.
  • the upper edges of the first squeegee 2 and the second squeegee 3 are substantially flush with the left side boundary S2 of the nozzle housing 1.
  • the nozzle housing 1 does not interfere with the left side boundary S1 of the suction inlet 11 to reach the left side wall, so that the left side corner can be sufficiently cleaned.
  • the structure and configuration on the right side of the nozzle housing 1 are the same as those on the left side, and will not be described herein again.
  • the present embodiment can improve the reaching capability of the left and right ends of the suction nozzle.
  • the total width of the suction inlet is greater than that of the nozzle housing, and both sides protrude from the edge of the nozzle housing, so that when cleaning edges such as a corner or a window frame, the squeegee can reach the corner area before the nozzle housing, so that all corner areas can be cleaned up without leaving a blind spot.
  • the area per unit length of the suction inlet lithe fluid passes through gradually decreases from both ends toward the midst.
  • pluralities of gaps are formed by the separateness between the first lip 23 and the second lip 33 by the adjacent two first convex portions 231.
  • Each of the gaps is defined as a suction inlet unit 110, and the suction inlet 11 is formed by a plurality of suction inlet units 110 that are spaced apart from each other.
  • the area of the suction inlet unit 110 gradually decreases from both ends toward the midst of the suction inlet, and the area of the suction inlet unit 110 is adjusted by the change in a height of the first convex portion 231 and the change in a distance between adjacent two first convex portions 231.
  • the height of the first convex portion 231 gradually decreases from both ends toward the midst, and the distance between the adjacent two first convex portions 231 does not change. In another embodiment, the height of the first convex portion 231 does not change, and the distance between the adjacent two first convex portions 231 gradually decreases from both ends toward the midst. Certainly, the height of the first convex portion 231 and the distance between the adjacent two first convex portions 231 may be simultaneously changed, as long as the area of the suction inlet unit 110 gradually decreases from both ends toward the midst. In the present embodiment, the suction inlet unit having the largest area is located at both ends of the suction inlet 11.
  • the area of the suction inlet unit 110 having the largest area is 6.8mm 2
  • the area of the suction inlet unit 110 having the smallest area is located at the midst of the suction inlet 11, which is 3.8 mm 2 . Since the flow rate near the end of the suction inlet 11 is small, increasing the area of the suction inlet unit 110 near both ends of the suction inlet 11 enables the flow rate to be substantially uniform when each of the suction inlet units 110 is sucking.
  • the area per unit length of the support suction inlet 44 the fluid passes through decreases from both ends toward the midst, and the variation tendency of the area per unit length of the suction inlet the fluid passes through is the same as of that the area per unit length of the support suction inlet 44.
  • the width of the support suction inlet 44 gradually decreases from both ends (away from the third axis M2) toward the midst (toward the third axis M2).
  • the total area (i.e., the sum of the areas of all the suction inlet units 110, recorded as SA 1 ) that the fluid passes through of the suction inlet 11 is substantially equal to the area ( SA 2 ) that the fluid passes through of the support suction inlet 44.
  • SA 1 SA 2
  • the ratio of the cumulative area increment of the suction inlet 11 to the cumulative area increment of the support suction inlet 44 is approximately a constant.
  • the suction inlet 11 is divided into a number of n small segments with equal length along the length thereof
  • the support suction inlet 44 is also divided into a number of n small segments with equal length along the length thereof, wherein the n is any positive integer.
  • the area that the fluid passes through the leftmost segment of the suction inlet 11 is recorded as x 1
  • the area of the suction inlet 11 that the fluid passes through each small segment from left to right are recorded as x 2 , x 3 , ..., then the area that the fluid passes through the far right segment is x n
  • SA 1 ⁇ x n
  • SA 1 ⁇ x n .
  • the first squeegee 2 and the second squeegee 3 are both substantially trapezoid-shaped.
  • the lower base length L1 of the trapezoid is substantially the length of the suction inlet 11
  • the upper base length L2 of the trapezoid is substantially the length of the bottom of the support suction inlet 44.
  • Airflow guiding members 441 are respectively disposed at the left and right ends of the support suction inlet 44.
  • the airflow guiding member 441 extends obliquely upward from the left/right bottom portion of the support suction inlet 44, and an upper end portion of the airflow guiding member 441 is closer to the central axis (the second axis M1) of the support 4 than a lower end portion thereof.
  • the airflow guiding member 441 defines the support suction inlet 44 as trumpet-shaped, and the top length L3 of the support suction inlet 44 is smaller than the bottom length L2 of the support suction inlet 44.
  • the suction passage gradually decreases in the length direction of the fluid suction nozzle, that is, L 1 >L 2 >L 3. Since the length of the support suction inlet 44 varies in the vertical direction, the above SA 2 is an area defined by a plane perpendicular to the flow direction of the airflow from the bottom of the support suction inlet 44 to the top thereof.
  • the present embodiment can improve the suction uniformity of the fluid suction nozzle. Since the flow rate of the suction inlet far from the midst (i.e., near the both ends) of the fluid suction nozzle is small, increasing the suction inlet area near both ends can make the flow rate of each inlet substantially the same when sucking.
  • the solution can overcome the shortcoming of the non-uniformity of the suction effect of the traditional fluid suction nozzle.
  • the area design of the suction inlet and the support suction inlet can well distribute the vacuum degree and the flow of the vacuum cleaner, and the first squeegee and the second squeegee can well scrap the water into the suction inlet, which greatly improves the working efficiency of the suction nozzle.
  • the total area of the suction inlet is approximately the same as the suction 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 fluid suction nozzle is in operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)

Claims (11)

  1. Eine Fluidsaugdüse, die ein Düsengehäuse (1) umfasst, wobei das Düsengehäuse (1) einen Saugkanal aufweist, der mit einer Vakuumquelle zum Erzeugen eines Saugflusses kommuniziert; das Düsengehäuse (1) einen Kopfabschnitt (12) umfasst; der Kopfabschnitt (12) mit einem ersten Abzieher (2) und einem zweiten Abzieher (3) versehen ist und ein Saugeinlass (11), der mit dem Saugkanal kommuniziert, zwischen dem ersten Abzieher (2) und dem zweiten Abzieher (3) gebildet ist, wobei mindestens ein Ende des ersten Abziehers (2) und des zweiten Abziehers (3) von dem Rand des Kopfabschnitts (12) entlang der Erstreckungsrichtung einer ersten Achse (N) nach außen vorsteht, wobei die Seitenkanten des ersten Abziehers und/oder des zweiten Abziehers mit der senkrechten Richtung eine Winkel α bilden, dadurch gekennzeichnet, dass der Winkel α = 10°.
  2. Fluidsaugdüse gemäß Anspruch 1, wobei die Fläche pro Einheit Länge des Saugeinlasses (11), durch die das Fluid geht, von beiden Enden davon in Richtung der Mitte kleiner wird.
  3. Fluidsaugdüse gemäß Anspruch 2, wobei der Saugeinlass (11) eine Vielzahl von Saugeinlasseinheiten (110) umfasst, die voneinander beabstandet sind, und die Fläche der Saugeinlasseinheiten (110) von beiden Enden her in Richtung der Mitte kleiner wird.
  4. Fluidsaugdüse gemäß Anspruch 2, wobei der Kopfabschnitt (12) ferner eine Stütze (4) umfasst, die einen Stützensaugeinlass (44) aufweist, der sich entlang der Richtung der Länge davon erstreckt und mit dem Saugeinlass (11) fluidisch kommuniziert.
  5. Fluidsaugdüse gemäß Anspruch 4, wobei die Variationstendenz der Fläche pro Einheit Länge des Saugeinlasses (11), durch die das Fluid geht, die gleiche ist wie die der Fläche pro Einheit Länge des Stützensaugeinlasses (44).
  6. Fluidsaugdüse gemäß Anspruch 4, wobei die kumulative Flächenzunahme des Saugeinlasses (11) entlang der Erstreckungsrichtung der ersten Achse (N) von einer Seite zur anderen mit der kumulativen Flächenzunahme des Stützensaugeinlasses (44) übereinstimmt.
  7. Fluidsaugdüse gemäß Anspruch 6, wobei das Verhältnis der kumulativen Flächenzunahme des Saugeinlasses (11) zu der kumulativen Flächenzunahme des Stützensaugeinlasses (44) eine Konstante ist.
  8. Fluidsaugdüse gemäß Anspruch 6, wobei die Fläche des Saugeinlasses (11), durch die das Fluid geht, mit der Fläche des Stützensaugeinlasses (44), durch die das Fluid geht, übereinstimmt.
  9. Fluidsaugdüse gemäß Anspruch 4, wobei ferner mindestens ein Luftflussführungselement (441) auf beiden Seiten des Stützensaugeinlasses (44) angeordnet ist und das Luftflussführungselement (441) den Stützensaugeinlass als trompetenförmig definiert.
  10. Fluidsaugdüse gemäß Anspruch 4, wobei der Saugkanal von dem Saugeinlass (11) zu der Oberseite des Stützensaugeinlasses (44) in der Längsrichtung der Fluidsaugdüse allmählich kleiner wird.
  11. Ein Trocken-Nass-Sauger, der die Fluidsaugdüse gemäß einem der Ansprüche 1 bis 10 beinhaltet.
EP17875326.5A 2016-12-02 2017-12-04 Wasserabsorptionsbürstenkopf und nass-/trockenstaubsauger damit Active EP3549503B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201611100361 2016-12-02
CN201710311781.XA CN108143345A (zh) 2016-12-02 2017-05-05 吸水刷头及具有其的干湿吸尘器
CN201720493125.1U CN207627248U (zh) 2016-12-02 2017-05-05 吸水刷头及具有其的干湿吸尘器
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

Publications (3)

Publication Number Publication Date
EP3549503A1 EP3549503A1 (de) 2019-10-09
EP3549503A4 EP3549503A4 (de) 2020-08-05
EP3549503B1 true EP3549503B1 (de) 2023-03-08

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CN109276179A (zh) * 2018-11-16 2019-01-29 安吉罗氏铝合金箱包厂 一种用于清洗铝制窗框的清洗装置
CN113069049B (zh) * 2021-04-30 2023-03-14 上海高仙自动化科技发展有限公司 吸水扒组件
CN116058740A (zh) * 2021-11-03 2023-05-05 美智纵横科技有限责任公司 刮条组件及洗地机

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