CN215777749U - Cleaning device - Google Patents

Cleaning device Download PDF

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Publication number
CN215777749U
CN215777749U CN202121346046.0U CN202121346046U CN215777749U CN 215777749 U CN215777749 U CN 215777749U CN 202121346046 U CN202121346046 U CN 202121346046U CN 215777749 U CN215777749 U CN 215777749U
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China
Prior art keywords
cleaning
air duct
air
chamber
outlet
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CN202121346046.0U
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Chinese (zh)
Inventor
熊英杰
袁超
凌宇征
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BSH Electrical Appliances Jiangsu Co Ltd
BSH Hausgeraete GmbH
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BSH Electrical Appliances Jiangsu Co Ltd
BSH Hausgeraete GmbH
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Priority to CN202121346046.0U priority Critical patent/CN215777749U/en
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Abstract

A cleaning device, comprising: an air flow generating device for driving air flow to generate air flow and a holding part, further comprising: the cleaning device comprises a cleaning assembly, an air duct and a driving mechanism, wherein the cleaning assembly comprises a shell and a rolling brush, the shell comprises a first cavity for accommodating the rolling brush, the first cavity is provided with an air inlet and an air outlet, and the shell further comprises a partition plate for separating the air duct and the driving mechanism; the inlet of the air duct is communicated with the first cavity through the air outlet; the driving mechanism is used for driving the rolling brush to rotate or move relative to the shell. Above-mentioned scheme can provide a neotype cleaning device.

Description

Cleaning device
Technical Field
The embodiment of the utility model relates to the technical field of household appliances, in particular to cleaning equipment.
Background
For some portable cleaning devices, such as handy suction cleaners and the like. Since such a portable cleaning device is small in size, a fan assembly is generally provided, and foreign substances such as dust and hair are generally sucked by means of a suction force generated by the fan assembly.
The cleaning effect of the cleaning equipment is better for some flat and smooth objects to be cleaned. However, for some objects to be cleaned with rough surfaces, the portable cleaning device has poor cleaning effect by means of the suction force generated by the fan assembly.
SUMMERY OF THE UTILITY MODEL
One of the objects of the present invention is to provide a new type of cleaning device.
To achieve the above object, an embodiment of the present invention provides a cleaning apparatus, including: an air flow generating device for driving air flow to generate air flow and a holding part, further comprising: the cleaning device comprises a cleaning assembly, an air duct and a driving mechanism, wherein the cleaning assembly comprises a shell and a rolling brush, the shell comprises a first cavity for accommodating the rolling brush, the first cavity is provided with an air inlet and an air outlet, and the shell further comprises a partition plate for separating the air duct and the driving mechanism; the inlet of the air duct is communicated with the first cavity through the air outlet; the driving mechanism is used for driving the rolling brush to rotate or move relative to the shell.
Compared with the prior art, the technical scheme of the embodiment of the utility model has the following beneficial effects:
the cleaning device provided by the embodiment of the utility model can comprise an airflow generating device, a holding part, a cleaning assembly, an air duct and a driving mechanism, wherein the cleaning assembly comprises a shell and a rolling brush. The housing may further include a partition for separating the air duct and the drive mechanism. The inlet of the air duct is communicated with the first cavity through the air outlet of the first cavity. The driving mechanism is used for driving the rolling brush to rotate or move relative to the shell. The cleaning device is provided with a cleaning assembly and a driving mechanism, foreign matters hidden in an object to be cleaned with an unsmooth or uneven surface are scraped out by driving the rolling brush to rotate or move through the driving mechanism, and the object to be cleaned with the unsmooth or uneven surface is cleaned in an improved way. The air duct and the driving mechanism can be separated by the partition plate, and the design compactness and layout rationality of the air duct and the driving mechanism are considered.
Optionally, the cleaning device further includes a battery, the holding portion is connected to the cleaning assembly, the holding portion has a second chamber, the second chamber is communicated with the outlet of the air duct, and the second chamber is used for placing the battery. Because the second cavity is communicated with the outlet of the air duct, the air flow can enter the second cavity through the air duct, and the heat of the battery arranged in the second cavity can be taken away by the air flow flowing through the second cavity, so that the battery is cooled, the battery works at a better environment temperature, the performance of the battery is improved, and the service life of the battery is prolonged. In addition, the battery is configured to be a rechargeable battery, so that the cleaning equipment does not need to rely on a wired wire to provide power when in use, and the convenience of the cleaning equipment is further improved.
Optionally, the battery is located between the air duct and the airflow generating device in a direction from the cleaning assembly to the holding portion. The battery is arranged between the air duct and the airflow generating device, so that the airflow passing through the battery maintains certain strength, the airflow can be fully contacted with the battery, and the cooling effect on the battery is further improved.
Optionally, the direction from the cleaning assembly to the holding portion is the same as the axial direction of the rolling brush. The consistency of the size of the appearance dimension of the cleaning equipment is better, the cleaning equipment is integrally in a thin strip shape, and therefore the cleaning equipment is convenient to use and store.
Optionally, the extending direction of the air duct is substantially along the direction from the cleaning assembly to the holding portion, so as to minimize attenuation of the air flow when the air flow passes through the air duct and maintain the intensity of the air flow.
Optionally, the air duct and the driving mechanism are arranged side by side on a horizontal plane along a direction perpendicular to a direction from the cleaning assembly to the holding portion. So as to further improve the compactness of the layout of all the components in the cleaning equipment and further reduce the volume of the cleaning equipment.
Optionally, the cleaning device further includes a dust collecting device, an inlet of the dust collecting device is communicated with the air outlet, and an outlet of the dust collecting device is communicated with an inlet of the air duct; or the inlet of the dust collecting device is communicated with the outlet of the air duct, the outlet of the dust collecting device is communicated with the second chamber, and the inlet of the air duct is communicated with the air outlet of the first chamber.
Optionally, the space of the driving mechanism in the housing is not communicated with the air duct. The leakage of the air flow is avoided, the intensity of the air flow in the air duct is ensured, and the influence of the air flow in the air duct on the driving mechanism is avoided.
Optionally, when the partition board includes a bending portion, the bending portion faces the inner surface of the air duct to form an arc surface. The surface of the bent part facing the inside of the air duct is set to be the cambered surface, so that the reduction degree of the bent part on the air flow strength can be reduced, and the influence on the attenuation of the air flow strength is reduced.
Optionally, the angle of the arc is greater than 90 °.
Optionally, a wall surface extends along the direction of the air outlet away from the air inlet, and the extending wall surface forms a flow guide section. The formed flow guide section can guide the flow direction of the airflow.
Optionally, a switch assembly is arranged on the holding portion. With switch module set up in the portion of gripping, can be convenient for the user and open or close cleaning device, further improve user operation cleaning device's convenience.
Optionally, a portion of the roller brush is exposed to the first chamber through the air outlet.
Drawings
FIG. 1 is a schematic view of a cleaning apparatus in an embodiment of the utility model from a perspective;
FIG. 2 is a schematic view of a cleaning apparatus in an alternative embodiment of the utility model;
FIG. 3 is a schematic view of a part of the cleaning apparatus after removing a dust collecting device in the embodiment of the present invention;
FIG. 4 is a cross-sectional view of a cleaning apparatus in an embodiment of the utility model, from a perspective;
FIG. 5 is a cross-sectional view of a cleaning apparatus in an embodiment of the utility model from another perspective;
FIG. 6 is a cross-sectional view of a cleaning device in an embodiment of the utility model from a further perspective;
FIG. 7 is a cross-sectional view taken in the direction A-A of FIG. 6;
FIG. 8 is a cross-sectional view of FIG. 6 in the direction B-B;
fig. 9 is a cross-sectional view of another cleaning apparatus in an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, specific embodiments accompanied with figures are described in detail below.
Referring to fig. 1, a schematic structural diagram of a cleaning apparatus in an embodiment of the present invention is given. Referring to fig. 2, a schematic diagram of a cleaning apparatus in another view angle in an embodiment of the present invention is shown. Referring to fig. 3, a schematic diagram of a part of the structure of a cleaning apparatus according to an embodiment of the present invention after removing a dust collecting device is shown. Referring to fig. 4 to 6, cross-sectional views of a cleaning device in an embodiment of the present invention at different viewing angles are respectively given. Fig. 7 is a sectional view in the direction a-a of fig. 6. Fig. 8 is a sectional view of fig. 6 in the direction B-B. The specific structure of the cleaning apparatus will be described with reference to fig. 1 to 8.
In an implementation, the cleaning apparatus 1 may include an airflow generating device 10, a holding portion 20, a cleaning assembly 30, an air duct 40, and a driving mechanism 50.
The airflow generating device 10 is used for driving air to flow to generate airflow, so that negative pressure can be generated on the surface of the cleaning device contacted with the cleaned object, and then foreign matters such as dust and hair on the cleaned object are sucked away by suction force generated by the negative pressure. The direction of the arrows in fig. 4, 5, and 8 indicates the direction of the airflow.
In some embodiments, the airflow generating device 10 may include a first motor and a fan, wherein the first motor drives the fan to rotate to generate the airflow.
In other embodiments, the airflow generating device 10 may further include a blower. It is understood that other configurations of the airflow generating device 10 may exist and are not limited to the above examples.
The grip 20 may be provided to facilitate the user's handling of the cleaning device 1.
The cleaning assembly 30 may include a housing 31 and a roller brush 32. The housing 31 includes a first chamber 311 for accommodating the roll brush 32, and the first chamber 311 has an inlet 3111 and an outlet 3112. The air inlet 3111 is used for sucking the air flow formed by the air on the surface of the object to be cleaned from the outside of the cleaning apparatus 1 into the first chamber 311, and the air outlet 3112 is used for flowing the air flow out of the first chamber 311 to enter other structures inside the cleaning apparatus 1.
The drive mechanism 50 may be used to drive the roller brush 32 to rotate or move relative to the housing 31.
In some embodiments, the driving mechanism 50 may include a second motor 51 and a transmission mechanism 52, the second motor 51 is coupled to the transmission mechanism 52, and the transmission mechanism 52 is connected to the roller brush 32, so that the second motor 51 drives the roller brush 32 to rotate through the transmission mechanism 52. Specifically, the rolling brush 32 includes two ends in the axial direction thereof, one end being a rotation shaft and the other end being a fixed end. The fixed end is rotatably connected to the first chamber 311. The rotating shaft is connected with the transmission mechanism 52, and under the rotation of the second motor 51, the rotating shaft is driven to rotate through the transmission mechanism 52, and at this time, the fixed end also rotates synchronously, so that the rolling brush 32 can be driven to rotate.
In other embodiments, the driving mechanism 50 may also drive the roller brush 32 to reciprocate in its axial direction. By the reciprocating movement of the rolling brush 32 in the axial direction thereof, foreign matters such as dust and hair on the surface of the object to be cleaned can be scraped off.
Further, a portion of the rolling brush 32 may expose the first chamber 311 through the air inlet 3111 of the first chamber 311, so that the rolling brush 32 can contact with the surface of the cleaning object when the cleaning apparatus 1 cleans the cleaning object.
Specifically, the rolling brush 32 may be provided with a dust-brushing portion 321 having a function of brushing or scraping off foreign substances on a surface of an object to be cleaned, such as bristles or protrusions, and ends of the bristles or protrusions may be exposed from the inlet 3111, so that the ends of the dust-brushing portion 321, such as the bristles or protrusions, may contact the object to be cleaned. When the drum brush 32 rotates, the tip of the dust brushing portion 321 such as bristles or protrusions may contact the object to be cleaned to scrape off foreign substances hidden in the object to be cleaned.
The housing 31 may further include a partition 312, and the partition 312 is used to separate the air duct 40 from the driving mechanism 50. The number of the partition plates 312 may be one or more, and the number of the partition plates 312 and the layout position of the partition plates 312 may be set according to the arrangement of other components in the housing 31, as long as the driving mechanism 50 can be separated from the air duct 40.
The inlet 41 of the air duct 40 is communicated with the first chamber 311 through the outlet 3112 of the first chamber 311.
When the cleaning device 1 cleans the object to be cleaned, the airflow generating device 10 starts to operate, and the air on the surface of the object to be cleaned is sucked through the air inlet 3111 of the first chamber 311 to form an airflow. The driving mechanism 50 drives the roller brush 32 to rotate or move relative to the housing 31, so that when the roller brush 32 rotates or moves, the driving mechanism can beat the surface of the object to be cleaned or scrape the surface of the object to be cleaned, thereby discharging the foreign matters hidden in the object to be cleaned, and the foreign matters can be sucked away along with the air flow. Foreign substances such as dust and hair on the surface of the object to be cleaned can be sucked into the first chamber 311 along with the airflow. The airflow carrying the foreign substances enters the air duct 40 through the air outlet 3112 of the first chamber 311.
As can be seen from the above, the cleaning apparatus 1 provided in the embodiment of the present invention may include an airflow generating device 10, a holding portion 20, a cleaning assembly 30, an air duct 40, and a driving mechanism 50, wherein the cleaning assembly 30 includes a housing 31 and a rolling brush 32. The housing 31 may further include a partition 312, and the partition 312 is used to separate the air duct 40 and the driving mechanism 50. The inlet 41 of the air duct 40 is communicated with the first chamber 311 through the outlet 3112 of the first chamber 311. The driving mechanism 50 is used for driving the rolling brush 32 to rotate or move relative to the housing 31. The cleaning device 1 is provided with a cleaning assembly 30 and a driving mechanism 50, and the cleaning of the cleaning object with rough surface can be realized by driving the rolling brush 32 to rotate or move through the driving mechanism 50. The partition 312 may separate the air duct 40 from the driving mechanism 50 on the one hand, so that the air duct 40 and the driving mechanism 50 are respectively located in different areas of the housing 31, thereby ensuring reasonable layout of the air duct 40 of the cleaning device 1; on the other hand, the design compactness and the layout rationality of the air duct 40 and the driving mechanism 50 are considered, so that the cleaning assembly 30 and the driving mechanism 50 can be arranged in a limited space of some portable cleaning devices with small volume, and the cleaning device 1 with better cleaning effect is obtained.
In a specific implementation, the cleaning device 1 may further comprise a battery 60. The battery 60 may power the drive mechanism 50 and the airflow generating device 10. The grip portion 20 is connected to the cleaning assembly 30. The grip 20 has a second chamber 21, the second chamber 21 is communicated with the outlet 42 of the wind tunnel 40, and the second chamber 21 is used for placing the battery 60. Accordingly, the outlet 42 of the air duct 40 is communicated with the second chamber 21 by guiding the flow direction of the air flow through the arrangement of the air duct 40 and the installation position of the battery 60, and the battery 60 is installed in the second chamber 21. Generally, the air flow sucked from the air inlet 3111 is at normal temperature, so the air flow input from the outlet 42 of the air duct 40 to the second chamber 21 can take away the heat generated by the battery 60 during operation, and cool the battery 60, so that the battery 60 can operate at a suitable environmental temperature, the performance of the battery 60 is ensured, and the service life of the battery 60 is prolonged.
In an implementation, the battery 60 may be a lithium battery or other rechargeable battery to further enhance the convenience of the cleaning device 1.
In some non-limiting embodiments, referring to fig. 5, 8 and 9, the battery 60 may be located between the wind tunnel 40 and the airflow generating device 10 along the direction X from the cleaning assembly 30 to the grip portion 20.
In some embodiments, to further reduce the volume of the cleaning device 1, the direction of the cleaning assembly 30 to the grip portion 20 coincides with the axial direction of the roll brush 32.
In a specific implementation, the extending direction of the air duct 40 is substantially along the direction from the cleaning assembly 30 to the grip portion 20.
Further, the arrangement direction of the batteries 60 is arranged along the extending direction of the air duct 40, so that the air flow can be fully contacted with the batteries 60, and the cooling effect on the batteries 60 is further improved.
In order to further improve the layout compactness of the components in the cleaning device 1, reduce the volume of the cleaning device 1 as much as possible, and improve the convenience of the cleaning device 1, the air duct 40 and the driving mechanism 50 can be arranged in the following way: referring to fig. 5, the air duct 40 and the driving mechanism 50 are arranged side by side in a direction Y perpendicular to a direction X from the cleaning assembly 30 to the grip portion 20 on a horizontal plane.
In a specific implementation, the cleaning device 1 may further comprise a dust collecting means 70. The dust collection device 70 is detachably coupled to the housing 31 to facilitate cleaning of foreign substances in the dust collection device 70.
The dust collecting device 70 may include a dust cup 71 and a filter 72. The filter member 72 can retain foreign substances such as hair, dust, etc. in the airflow in the dust cup 71. The filter member 72 may include a filter cotton or the like having a filtering function. The dust cup 71 is used to collect foreign substances such as hair, dust, etc. remaining therein.
The dust collecting device 70 can be arranged on the cleaning device 1 in various ways, and can be configured according to actual requirements.
For example, referring to fig. 8, the inlet of the dust collecting device 70 is communicated with the air outlet 3112, and the outlet of the dust collecting device 70 is communicated with the inlet 41 of the air duct 40.
As another example, referring to fig. 9, a schematic structural diagram of another cleaning apparatus in the embodiment of the present invention is shown, in which the inlet of the dust collecting device 70 is communicated with the outlet 42 of the air duct 40, the outlet of the dust collecting device 70 is communicated with the second chamber 21, and the inlet 41 of the air duct 40 is communicated with the air outlet 3112 of the first chamber 311.
Further, when the inlet of the dust collecting device 70 is communicated with the air outlet 3112. The inlet of the dust collecting device 70 is configured to be matched with the outlet 3112 of the first chamber 311, so that the outlet 3112 of the first chamber 311 is only communicated with the inlet of the dust collecting device 70. Alternatively, a corresponding partition 312 may be disposed on the housing 31 to separate the outlet 3112 of the first chamber 311 from other areas that may be communicated with the outlet 3112, so as to communicate only the outlet 3112 with the inlet of the dust collecting device 70.
Further, when the inlet 41 of the air duct 40 is communicated with the outlet 3112 of the first chamber 311, a corresponding partition 312 may be disposed on the housing 31 to separate other areas that may be communicated with the outlet 3112 of the first chamber 311, and only the inlet 41 of the air duct 40 is kept communicated with the outlet 3112 of the first chamber 311.
In specific implementation, the space in which the driving mechanism 50 is located inside the housing 31 is not communicated with the air duct 40. To avoid leakage of the air flow, to ensure the strength of the air flow in the air duct 40, and to avoid the influence of the air flow in the air duct 40 on the driving mechanism 50.
Further, a heat dissipation opening is provided on the housing 31, and the heat dissipation opening communicates a space in which the driving mechanism 50 is located in the housing 31 with the outside, so as to facilitate dissipation of heat generated by the driving mechanism 50 during operation. The position where the heat dissipation port is provided on the housing 31 may be arranged depending on the position of the drive mechanism 50 within the housing 31.
Further, in order to ensure the suction strength of the cleaning apparatus 1, the area of the inlet 3111 of the first chamber 311 is smaller than the area of the outlet 3112 of the first chamber 311. So that the airflow flowing out of the outlet 3112 of the first chamber 311 maintains a better intensity.
In some embodiments, the airflow generating device 10 may be disposed at the end of the holding portion 20. The end of the grip portion 20 refers to the end of the grip portion 20 remote from the cleaning assembly 30.
Further, an air outlet for discharging the air flow from the cleaning device 1 may be provided at the tip of the grip portion 20. Specifically, the airflow in the air duct 40 passes through the airflow generating device 10 and is then discharged through the exhaust port.
In a specific implementation, when the partition 312 includes a bending portion, the bending portion faces the inner portion of the air duct 40 and is configured as a curved surface, which helps to maintain the strength of the air flow and avoid the influence of the bending portion on the strength of the air flow.
In a specific implementation, the angle of the arc is greater than 90 °.
In one embodiment, the outlet 3112 has a wall extending away from the inlet 3111, and the wall forms the flow guiding section 80. The flow guide section 80 helps to guide the direction of the airflow and may enhance the strength of the airflow.
Further, when the air outlet 3112 of the first chamber 311 is extended with the flow guiding section 80, and the inlet of the dust collecting device 70 is communicated with the air outlet 3112 of the first chamber 311, the size of the inlet of the dust collecting device 70 can be adapted to the size of the flow guiding section 80, so that the flow guiding section 80 is only communicated with the inlet of the dust collecting device 70.
In a specific implementation, a switch assembly 22 may be disposed on the grip portion 20, and the switch assembly 22 is used for controlling the cleaning device 1 to be turned on and off.
It should be noted that the cleaning device 1 may also include other components, such as a controller for controlling the cleaning device 1, which is not illustrated herein.
In a specific implementation, the cleaning device 1 may include a vacuum cleaner, a mite removing device, or other devices with a cleaning function, which is not illustrated here.
While specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently stated. In particular implementations, the features of one or more dependent claims may be combined with those of the independent claims as technically feasible according to the actual requirements, and the features from the respective independent claims may be combined in any appropriate manner and not merely by the specific combinations enumerated in the claims.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (13)

1. A cleaning device, comprising: an air flow generating device (10) for driving air flow to generate an air flow, and a grip portion (20), characterized by further comprising: a cleaning component (30), an air duct (40) and a driving mechanism (50), wherein,
the cleaning assembly (30) comprises a shell (31) and a rolling brush (32), the shell (31) comprises a first chamber (311) for accommodating the rolling brush (32), the first chamber (311) is provided with an air inlet (3111) and an air outlet (3112), the shell (31) further comprises a partition plate (312), and the partition plate (312) is used for separating the air duct (40) and the driving mechanism (50);
the inlet (41) of the air duct (40) communicates with the first chamber (311) via the air outlet (3112);
the driving mechanism (50) is used for driving the rolling brush (32) to rotate or move relative to the shell (31).
2. The cleaning device according to claim 1, further comprising a battery (60), wherein the grip portion (20) is connected to the cleaning assembly (30), wherein the grip portion (20) has a second chamber (21), and wherein the second chamber (21) is in communication with the outlet (42) of the air duct (40), and wherein the second chamber (21) is used for accommodating the battery (60).
3. Cleaning device according to claim 2, characterized in that the battery (60) is located between the air duct (40) and the air flow generating means (10) in the direction of the cleaning assembly (30) to the grip portion (20).
4. A cleaning device as claimed in claim 3, characterized in that the direction of the cleaning assembly (30) to the grip portion (20) coincides with the axial direction of the roller brush (32).
5. Cleaning device according to any one of claims 1 to 4, characterized in that the air duct (40) extends in a direction substantially in the direction of the cleaning assembly (30) to the grip portion (20).
6. The cleaning apparatus according to any one of claims 1 to 4, wherein the air duct (40) is arranged side by side with the drive mechanism (50) in a direction perpendicular to a direction from the cleaning assembly (30) to the grip portion (20) on a horizontal plane.
7. The cleaning apparatus according to claim 2, further comprising a dust collecting device (70), an inlet of the dust collecting device (70) being in communication with the air outlet (3112), an outlet of the dust collecting device (70) being in communication with an inlet (41) of the air duct (40); or the inlet of the dust collecting device (70) is communicated with the outlet (42) of the air duct (40), the outlet of the dust collecting device (70) is communicated with the second chamber (21), and the inlet (41) of the air duct (40) is communicated with the air outlet (3112) of the first chamber (311).
8. The cleaning apparatus according to claim 1, wherein the space where the drive mechanism (50) is located in the housing (31) is not in communication with the air duct (40).
9. The cleaning apparatus according to claim 1, wherein when the partition (312) includes a bend, a face of the bend facing the inside of the air duct (40) is curved.
10. The cleaning apparatus defined in claim 9, wherein the angle of the arcuate surface is greater than 90 °.
11. A cleaning appliance according to claim 1, characterised in that a wall extends along the outlet opening (3112) in a direction away from the inlet opening (3111), the extending wall forming a flow guide section (80).
12. Cleaning device according to claim 1, characterized in that a switch assembly (22) is arranged on the grip portion (20).
13. The cleaning apparatus according to claim 1, wherein a portion of the roller brush (32) exposes the first chamber (311) via the air outlet (3112).
CN202121346046.0U 2021-06-17 2021-06-17 Cleaning device Active CN215777749U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121346046.0U CN215777749U (en) 2021-06-17 2021-06-17 Cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121346046.0U CN215777749U (en) 2021-06-17 2021-06-17 Cleaning device

Publications (1)

Publication Number Publication Date
CN215777749U true CN215777749U (en) 2022-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121346046.0U Active CN215777749U (en) 2021-06-17 2021-06-17 Cleaning device

Country Status (1)

Country Link
CN (1) CN215777749U (en)

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