CN211883607U - Anti-winding cleaner head of dust collector - Google Patents
Anti-winding cleaner head of dust collector Download PDFInfo
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- CN211883607U CN211883607U CN201922039014.5U CN201922039014U CN211883607U CN 211883607 U CN211883607 U CN 211883607U CN 201922039014 U CN201922039014 U CN 201922039014U CN 211883607 U CN211883607 U CN 211883607U
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Abstract
The utility model provides an antiwind dust catcher cleaning head, include: a cleaner head body at least partially defining a chamber; the rolling brush is at least partially positioned in the cavity and comprises a brush roll and a plurality of brush strips arranged on the surface of the brush roll; at least one part of the brush strips extend on the surface of the brush roll along the axial direction of the brush roll in a forward spiral mode, at least another part of the brush strips extend on the surface of the brush roll along the axial direction of the brush roll in a reverse spiral mode, at least part of the forward spiral brush strips and the reverse spiral brush strips are arranged on the surface of the brush roll in a staggered mode, and the projections of the forward spiral brush strips and the reverse spiral brush strips which are arranged in the staggered mode on the axial line are at least partially overlapped. The utility model provides an antiwind dust catcher cleaning head can concentrate the hair migration of rolling up to crisscross setting region, and reuse hair clearance portion cooperation is removed the hair clearance of concentrating, makes its hair clearance that can will roll up at any time in the course of the work, prevents effectively that the hair from twining, improves clean efficiency.
Description
Technical Field
The utility model relates to a cleaning appliances technical field especially relates to an antiwind cleaner cleaning head.
Background
The dust collector is a common cleaning tool in daily life, a motor is used for driving a blade to rotate in the working process, negative pressure is generated in a sealing shell, and therefore foreign matters on the surface to be cleaned are sucked in, and the ground brush type cleaning head is an important part of the dust collector, so that the working efficiency of the dust collector directly influences the cleaning efficiency of the dust collector.
The cleaning head of the vacuum cleaner generally has a housing and a rolling brush disposed in the housing, and the rolling brush generally includes a rolling brush body and bristles disposed on the rolling brush body, and the bristles are generally made of a flexible material. When the dust collector works, the rolling brush rotates around the axis of the rolling brush, and the brush hairs on the rolling brush clean the surface to be cleaned through the suction port of the dust collector, so that dust, paper scraps, foreign matters, hair and the like are rolled up and sucked. And the round brush of current dust catcher is using for a long time or after the clearance bedroom, can twine a lot of hairs on its brush hair, can lead to the clean efficiency greatly reduced of dust catcher on the one hand, and on the other hand can only pull the clearance with the round brush is pulled manually after pulling down, perhaps cuts off with sharp wares such as cutterbar, and the clearance is got up very inconveniently.
Currently, several cleaning devices are provided in the prior art that prevent hair from tangling the roller brush. For example, some cleaner heads have wider saw teeth behind their roller brushes, but the arrangement of the saw teeth can gather the larger volume of garbage to the rotating roller brushes, and the cleaning effect is not ideal for fine hair; CN109715022A provides a hair removal agitator, can concentrate hair to the brush roll middle part or tip not be equipped with brush hair department from the brush hair in the rotatory in-process of round brush, make hair no longer twine on the brush hair but concentrate on the brush roll, clear up hair again, though above-mentioned scheme can alleviate the problem that the cleaning efficiency that hair twines and leads to on the brush hair descends, when in actual application, the hair concentrates to can twine very tightly under the effect of force behind the brush roll department, make the clearance more inconvenient, or still must dismantle the brush roll after just can remove hair, be unfavorable for promoting user experience.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the present invention aims to provide a cleaner head capable of collecting and cleaning the hair rolled up at any time during the working process, and effectively preventing the hair from winding, the cleaner head comprises:
a cleaner head body at least partially defining a chamber; and a roller brush at least partially located in the chamber, the roller brush including a brush roller configured to pivot about an axial direction thereof, and a plurality of brush bars provided on a surface of the brush roller; at least one part of the brush strips extend on the surface of the brush roll along the axial direction of the brush roll in a forward spiral mode, at least another part of the brush strips extend on the surface of the brush roll along the axial direction of the brush roll in a reverse spiral mode, at least part of the forward spiral brush strips and the reverse spiral brush strips are arranged on the surface of the brush roll in a staggered mode, and the projections of the forward spiral brush strips and the reverse spiral brush strips which are arranged in the staggered mode on the axial line are at least partially overlapped.
In the present application, the forward spiral brush strips and the reverse spiral brush strips are staggered on the surface of the brush roll and at least partially overlap in the projection of the axis, and it can be understood that the forward spiral brush strips and the reverse spiral brush strips are alternately distributed on the surface of the brush roll, and the projection length of the forward spiral brush strips and the reverse spiral brush strips on the axis is larger than half of the length of the axis of the brush roll, so that the opposite ends of the two brush strips in the spiral directions extend out of a part in the direction of each other in the staggered area of the opposite ends of the two brush strips and are not in contact in a cross mode or the like. In one embodiment, the rolling brush may have a portion of the brush strips with opposite spiral directions arranged in a staggered manner, and another portion of the brush strips with opposite spiral directions may be continuous, for example, in a V-shaped row of brush strips.
The cleaning head with the rolling brush with the brush strips in opposite spiral directions can enable hairs wound on the rolling brush to migrate to the staggered arrangement area of the final brush strips along the spiral direction of the brush strips under the action of spiral force generated by rotation in the rotation process of the rolling brush and be concentrated in the staggered area. Compared with the arrangement that the hair is finally wound on the outer side of the brush roll in the existing rolling brush, the rolling brush with the brush strips arranged in the staggered mode can concentrate the hair on the outer side of the brush strips instead of winding on the brush roll, so that the hair can be removed and cleaned from the outer side of the brush strips more easily.
Preferably, the brush bars which correspond to the two brush bars with opposite spiral directions and are arranged in a staggered manner are mutually adjacent.
In one embodiment, the brush bars of the rolling brush are a plurality of discontinuous brush bar rows, and there may be a plurality of brush bar staggered areas distributed along the axial direction of the brush roller, and the hairs rolled by the rolling brush may be respectively concentrated in the staggered areas of the brush bars, so as to improve the hair collecting efficiency.
In another embodiment, the roller brush may have a uniform outer diameter, and the height of the brush strips may vary from side to side, i.e. the height of the brush strips may be varied by adjusting the diameter of the brush roll to ensure that the outer diameter of the roller brush is uniform throughout, e.g. the height of the brush strips in the staggered area is greater than the height of the brush strips on both sides of the staggered area, preferably decreasing smoothly from the middle to both sides.
Further, the brush roller comprises a middle section corresponding to the suction opening of the dust collector, and the brush strips arranged in the forward spiral mode and the brush strips arranged in the reverse spiral mode are arranged in the middle section of the brush roller in a staggered mode. The arrangement can ensure that the concentrated hair moves to the position close to the suction opening, so that the concentrated hair is easier to be sucked away and removed by the larger suction force at the suction opening, and the effect of auxiliary cleaning is achieved on the concentrated hair.
Further, the cleaning head body is further provided with a hair cleaning part which is close to the staggered arrangement part of the brush strips arranged in the forward spiral mode and the brush strips arranged in the reverse spiral mode.
The hair cleaning part correspondingly arranged on one side of the brush bar staggered arrangement part can clean the hair concentrated and wound in the brush bar staggered arrangement area from the rotating rolling brush in the working process of the dust collector, the efficiency of sucking the hair away by the suction port is further improved, the hair wound on the rolling brush is cleaned while the dust collector works under the matching action of the rolling brush and the hair cleaning part, the probability of generating the hair wound on the rolling brush is effectively reduced, and the cleaning efficiency is improved.
Further, the hair cleaning part includes a wiper strip having a length of comb teeth facing the drum brush. Preferably, the section of comb teeth is a continuous section of comb teeth row, so as to clean fine hair.
Furthermore, the scraping strip also comprises a fixing strip for fixing the comb teeth, and at least part of the fixing strip is made of metal. The fixing strip made of metal partially has certain weight, so that the resonance of the scraping strip caused by the rotation of the rolling brush can be reduced, and the noise is effectively reduced.
Further, the staggered arrangement part of the forward spirally arranged brush strips and the reverse spirally arranged brush strips has a first length in the axial direction of the brush roll, and one section of comb teeth of the scraping strips has a second length in the axial direction of the brush roll, and the second length is not less than the first length.
Furthermore, the height of the comb teeth of the brush strip staggered arrangement part corresponding to the comb tooth row is larger than that of the comb teeth of the two side parts of the brush strip staggered area corresponding to the comb tooth row.
The comb-shaped scraping strip with the arrangement can effectively clean hair concentrated on the interlaced area part of the brush strip, and is favorable for improving the hair cleaning effect.
Furthermore, the brush bar is detachably inserted on the surface of the brush roller.
Furthermore, the surface of the brush roll is provided with a spiral guide groove, the bottom of the brush strip is in an inverted T shape, one end of the bottom of the brush strip is provided with a protruding limiting portion, and the bottom of the inverted T shape of the brush strip is embedded into the guide groove and slides to the limiting portion to realize the insertion connection with the brush roll. Wherein, the detachable brush strip can be convenient for the production assembly or the maintenance and the replacement thereof.
Further, the brush bar can be a brush felt, a brush piece, a brush cloth or brush hair.
Further, the brush bar comprises a cloth strip.
Further, one side of the cloth strip is provided with an elastic adhesive tape. The elastic rubber strip can increase the rigidity of the cloth strip and further reduce the abrasion of the cloth strip in the using process.
In a preferred embodiment, the brush bar can also be a brush felt, which has a fixed end fixed to the brush roller and a free end remote from the fixed end, wherein the brush roller is pivoted in the direction of its axis in the operating state, and the free end of the brush felt, which is at least partially located in the middle section, is deformed in the direction opposite to the pivoting direction of the brush roller. More preferably, the free end of each brush bar at the end of the central section is reversely deformed. Because the hair migrated on the roller brush is finally concentrated on the middle section, the arrangement that the tail ends of the brush bars are deformed reversely slightly can effectively reduce the abrasion of the brush bars and prolong the service life of the brush bars.
The following beneficial effects can be brought through the application:
the utility model provides an antiwind dust catcher cleaning head, through the brush strip that spiral opposite direction and part crisscross setting go up the round brush, and to setting up the hair clearance portion that the region has the broach corresponding to crisscross, the hair migration that will curl up concentrates on crisscross setting region, reuse hair clearance portion cooperation is removed the hair clearance of concentrating, make its hair clearance that can will curl up at any time in the course of the work, effectively prevent the hair winding, improve cleaning efficiency, prolong the life of round brush, promote user experience.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a cleaner head according to the present application;
FIG. 2 is a front view of the brush bar;
FIG. 3 is a left side view of the brush bar;
in the figure: 1. a brush roll; 2. brushing the strip; 21. cloth strips; 22. a bottom adhesive tape; 23. a limiting part; 3. a cleaning head main body; 4. a fixing strip; 5. and comb teeth.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
One embodiment of the present application provides a cleaner head for a vacuum cleaner, which can collect and clean rolled hair at any time during operation, effectively preventing the hair from tangling. As shown in fig. 1, the cleaner head of the cleaner includes: a roller brush for cleaning a floor or other surface to be cleaned, and a cleaning head body 3 for mounting and housing the roller brush, wherein the cleaning head body 3 at least partially defines a chamber in which the roller brush is mounted, and at least part of the roller brush is exposed to the outside of the cleaning head body 3.
The rolling brush comprises a brush roller 1 which is configured to pivot around the axis direction of the brush roller 1, and a plurality of brush strips 2 which are arranged on the surface of the brush roller 1, wherein at least one part of the brush strips 2 extend on the surface of the brush roller 1 along the axis direction of the brush roller 1 in a forward spiral mode, at least another part of the brush strips 2 extend on the surface of the brush roller 1 along the axis direction of the brush roller 1 in a reverse spiral mode, at least part of the forward spiral brush strips and the reverse spiral brush strips are arranged on the surface of the brush roller in a staggered mode, and the projections of the forward spiral brush strips and the reverse spiral brush strips which are arranged in the staggered mode on the axis are at least partially. Preferably, two brush bars 2 arranged in a staggered manner are adjacent to each other.
The forward spiral brush strips 2 and the reverse spiral brush strips 2 are staggered on the surface of the brush roller 1 and at least partially overlap in axial projection, and it can be understood that the forward spiral brush strips 2 and the reverse spiral brush strips 2 are alternately distributed on the surface of the brush roller 1, and the projection length of the forward spiral brush strips and the reverse spiral brush strips 2 on the axial line is larger than half of the axial length of the brush roller 1, so that the ends, opposite to each other, of the two brush strips 2 in the spiral directions extend out of a part in the direction of each other in the staggered area of the two opposite brush strips without contact in the form of crossing and the like. In one embodiment, the roller brush may have a portion of the brush bars 2 with opposite spiral directions arranged alternately, and another portion of the brush bars 2 with opposite spiral directions may be continuous, for example, in a V-shaped row of brush bars.
In the rotating process of the rolling brush, the hairs wound on the rolling brush can migrate to the staggered arrangement area of the final brush strip 2 along the spiral direction of the brush strip 2 under the action of the spiral force generated by rotation, and are concentrated in the staggered arrangement area. Compared with the arrangement that the hairs are finally wound around the outer side of the brush roller 1 in the existing rolling brush, the rolling brush with the brush bars 2 arranged in the staggered mode can concentrate the hairs on the outer side of the brush bars 2 instead of winding the hairs on the brush roller 1, so that the hairs can be removed and cleaned from the outer side of the brush bars 2 more easily.
In the embodiment shown in fig. 1, the brush roll 1 comprises a middle section corresponding to the suction opening of the vacuum cleaner, wherein the brush bars 2 arranged in a forward spiral and the brush bars 2 arranged in a reverse spiral are arranged in a staggered manner in the middle section of the brush roll 1. Therefore, the concentrated hairs can be moved to the position close to the suction opening, so that the hairs are easier to suck away and remove by the larger suction force at the suction opening, and the effect of auxiliary cleaning is achieved on the concentrated hairs.
In other embodiments, the brush strips 2 of the rolling brush may be a plurality of discontinuous brush strip rows, and there may be a plurality of staggered areas of the brush strips 2 distributed along the axial direction of the brush roller 1, and the hairs rolled up by the rolling brush may be respectively concentrated in the staggered areas of the brush strips 2, so as to improve the hair collecting efficiency. In another embodiment, the rolling brush may have a uniform outer diameter, and the height of the brush strips 2 varies from two sides to the middle, i.e. the height of the brush strips 2 may be varied by adjusting the diameter of the brush roll 1 to ensure the uniform outer diameter of the whole rolling brush, for example, the height of the brush strips 2 in the staggered area is greater than the height of the brush strips 2 at two sides of the staggered area, and preferably decreases smoothly from the middle to two sides.
The cleaner head body 3 is further provided with a hair cleaning part, the hair cleaning part is correspondingly positioned on one side of the staggered arrangement part of the forward spirally arranged brush strips 2 and the reverse spirally arranged brush strips 2, and preferably, the hair cleaning part is arranged on the rear side of the advancing direction of the dust collector. The hair cleaning part correspondingly arranged on one side of the staggered part of the brush strip 2 can clean the hair concentrated and wound in the staggered area of the brush strip 2 from the rotating rolling brush in the working process of the dust collector, the efficiency of sucking the hair away by the suction port is further improved, the hair wound on the rolling brush is cleaned while the dust collector works under the matching action of the rolling brush and the hair cleaning part, the probability of generating the hair wound on the rolling brush is effectively reduced, and the cleaning efficiency is improved.
As shown in fig. 1, the hair cleaning part includes a wiper strip having a length of comb teeth 5 facing the roller brush. Preferably, the length of comb teeth 5 is a continuous row of comb teeth to facilitate the cleaning of fine hair. Preferably, the scraper bar further comprises a fixing bar 4 for fixing the comb teeth 5, and at least part of the fixing bar 4 is made of metal. The fixing strip 4 made of metal partially has certain weight, so that the resonance of the scraping strip caused by the rotation of the rolling brush can be reduced, and the noise is effectively reduced.
In a preferred embodiment, the staggered arrangement of the forward spirally arranged brush bars 2 and the reverse spirally arranged brush bars 2 has a first length in the axial direction of the brush roller 1, and one section of comb teeth 5 of the scraping bar has a second length in the axial direction of the brush roller 1, the second length being not less than the first length. More preferably, the height of the comb teeth 5 of the staggered arrangement part of the comb teeth row corresponding to the brush strip 2 is larger than the height of the comb teeth 5 of the staggered arrangement part of the comb teeth row corresponding to the brush strip 2. The scraping strip with the arrangement can effectively clean hair concentrated on the brush strip staggered arrangement part, and is favorable for improving the hair cleaning effect.
Wherein, the brush strip 2 can be a brush felt, a brush piece, a brush cloth or brush hair. Preferably, the brush strip 2 comprises a cloth strip, and more preferably, one side of the cloth strip is also provided with an elastic rubber strip. The elastic rubber strip can increase the rigidity of the cloth strip and further reduce the abrasion of the cloth strip in the using process.
In one embodiment, the brush bar 2 is detachably connected to the surface of the brush roller 1. Preferably, the surface of the brush roller 1 is provided with a spiral guide groove, the bottom of the brush bar 2 is in an inverted T shape, as shown in fig. 2-3, and is provided with a bottom adhesive tape 22, one end of the bottom adhesive tape 22 is further provided with a protruding limiting portion 23, and the brush bar 2 is inserted into the guide groove and slides to the limiting portion 23 by embedding the inverted T-shaped bottom of the brush bar 2 into the guide groove, so that the brush bar 1 is inserted. Wherein, the detachable brush strip 2 can be convenient for the production assembly or the maintenance and the replacement.
In a further embodiment, the brush bar 2 can also be a brush felt having a fixed end which is fixed to the brush roller 1 and a free end which is remote from the fixed end, wherein the brush roller 1 is pivoted in the direction of its axis in the operating state, and wherein the free end of the brush felt, which is at least partially located in the middle section, is deformed in the direction opposite to the pivoting direction of the brush roller. More preferably, the free end of each brush bar 2 at the end of the central section is reversely deformed. Because the hair migrated on the roller brush is finally concentrated on the middle section, the arrangement that the tail ends of the brush bars are deformed reversely slightly can effectively reduce the abrasion of the brush bars and prolong the service life of the brush bars.
It can know to synthesize above-mentioned, the dust catcher cleaning head that above-mentioned embodiment provided can concentrate the hair migration of rolling up to crisscross setting area, and reuse hair clearance portion cooperation is removed the hair clearance of concentrating, makes it can be at any time with the hair clearance of rolling up in the course of the work, effectively prevents the hair winding, improves clean efficiency, prolongs the life of round brush, promotes user experience.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. An anti-tangling cleaner head, comprising:
a cleaner head body at least partially defining a chamber; and
a roller brush at least partially located within the chamber, the roller brush including a brush roll and a plurality of brush bars disposed on a surface of the brush roll;
at least one part of the brush strips extend on the surface of the brush roll along the axial direction of the brush roll in a forward spiral mode, at least another part of the brush strips extend on the surface of the brush roll along the axial direction of the brush roll in a reverse spiral mode, at least part of the forward spiral brush strips and the reverse spiral brush strips are arranged on the surface of the brush roll in a staggered mode, and the projections of the forward spiral brush strips and the reverse spiral brush strips which are arranged in the staggered mode on the axial line are at least partially overlapped.
2. The anti-wind cleaner head according to claim 1, wherein the brush roller includes a middle section corresponding to a cleaner suction port, and the forward spirally arranged brush strips and the reverse spirally arranged brush strips are staggered at the middle section of the brush roller.
3. The anti-wind cleaner head according to claim 1, wherein the cleaner head body is further provided with a hair cleaning part adjacent to the staggered arrangement of the forward and reverse spirally arranged brush bars.
4. The anti-wind cleaner cleaning head according to claim 3, wherein the hair cleaning part comprises a wiper strip having a length of comb teeth facing the drum brush.
5. The anti-wind cleaner head according to claim 4, wherein the wiper strip further comprises a fixing strip for fixing the comb teeth, and at least a portion of the fixing strip is made of metal.
6. The anti-wind cleaner head according to claim 4, wherein the alternately arranged portions of the forward spirally arranged brush bars and the reverse spirally arranged brush bars have a first length in the brush roller axis direction, and a length of the comb teeth of the wiper strip has a second length in the brush roller axis direction, the second length being not less than the first length.
7. The anti-wind cleaner head according to claim 1, wherein the brush bar is removably attached to the surface of the brush roll.
8. The anti-wind cleaner head according to claim 7, wherein the brush roll has a spiral guide groove on a surface thereof, the bottom of the brush bar has an inverted T shape, and a protruding stopper is provided at one end of the bottom of the brush bar, and the brush bar is inserted into the guide groove by inserting the inverted T-shaped bottom of the brush bar into the stopper and sliding the brush bar to the stopper.
9. The anti-wind cleaner head according to any one of claims 1 to 8, wherein the brush bar comprises a cloth strip.
10. The anti-wind cleaner head according to claim 9, wherein one side of the cloth strip has an elastic strip of glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922039014.5U CN211883607U (en) | 2019-11-23 | 2019-11-23 | Anti-winding cleaner head of dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922039014.5U CN211883607U (en) | 2019-11-23 | 2019-11-23 | Anti-winding cleaner head of dust collector |
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| Publication Number | Publication Date |
|---|---|
| CN211883607U true CN211883607U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922039014.5U Active CN211883607U (en) | 2019-11-23 | 2019-11-23 | Anti-winding cleaner head of dust collector |
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| Country | Link |
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| CN (1) | CN211883607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297258A (en) * | 2019-11-23 | 2020-06-19 | 尚科宁家(中国)科技有限公司 | Anti-winding cleaner head of dust collector |
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2019
- 2019-11-23 CN CN201922039014.5U patent/CN211883607U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297258A (en) * | 2019-11-23 | 2020-06-19 | 尚科宁家(中国)科技有限公司 | Anti-winding cleaner head of dust collector |
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