Cleaning device and cleaning system

Abstract

The utility model discloses a cleaning device and a cleaning system. The cleaning device comprises a main machine, a cleaning piece and a dust collecting box. The cleaning piece is rotatably arranged at the bottom of the main machine around the axis of the cleaning piece, a cleaning part extending in the axis direction of the cleaning piece is arranged on the peripheral side face of the cleaning piece, and the cleaning part surrounds the peripheral side face of the cleaning piece in a spiral line mode. The screw pitch of the spiral line is gradually reduced in the axis direction of the cleaning piece; the dust collection box is arranged on the main machine, a dust collection channel is formed in the dust collection box, and an inlet of the dust collection channel is located at the end, with the smaller screw pitch, of the spiral line of the cleaning piece. The cleaning device at least solves the problems that the cleaning device is low in dust collection efficiency and low in dust collection speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning equipment technical field, specifically, relate to a cleaning device and cleaning system. BACKGROUND

[0002] The cleaning device is favored by people as a tool that can realize automatic cleaning, and it is widely used in cleaning of indoor and large places. The bottom of the common cleaning equipment on the market is usually provided with a rolling brush, and the rolling brush can rotate relative to the ground to clean the ground by a brush strip or bristles. In order to improve the cleaning efficiency and facilitate garbage collection, the existing cleaning equipment sets the installation line of the brush strip or bristles on the rolling brush in a spiral line. However, this design causes the vertical wall surface at the end of the rolling brush to reduce the airflow velocity, and the dust velocity is slow, thereby causing the problems of slow dust collection speed and low dust collection efficiency of the cleaning device. SUMMARY

[0003] The main purpose of the utility model is to provide a cleaning device and a cleaning system, which at least solve the problems of low dust collection efficiency and slow dust collection speed of the cleaning device.

[0004] According to one aspect of the utility model, a cleaning device is provided, which comprises:

[0005] a host machine;

[0006] a cleaning element, which is rotatably arranged at the bottom of the host machine around its own axis, and the outer peripheral side of the cleaning element is provided with a cleaning part extending along the axial direction of the cleaning element, the cleaning part is arranged around the outer peripheral side of the cleaning element in a spiral line, and the pitch of the spiral line gradually decreases along the axial direction of the cleaning element;

[0007] a dust collection box, which is arranged on the host machine, and a dust collection channel is arranged on the dust collection box, and the inlet of the dust collection channel is located at one end of the spiral line of the cleaning element with smaller pitch.

[0008] Further, the cleaning element comprises a free end and a connecting end,

[0009] wherein the free end is located at one end of the spiral line of the cleaning element with smaller pitch, and the inlet of the dust collection channel is arranged close to the free end;

[0010] the connecting end is located at one end of the spiral line of the cleaning element with larger pitch, and the cleaning element is connected to the host machine through the connecting end.

[0011] Further, the connecting end of the cleaning member is provided with a pivot part, the connecting end is rotatably connected to the main machine through the pivot part, the cleaning member has a first position of rotating around the pivot part and protruding at least partially from the bottom of the main machine and a second position of being retracted to the inner side of the main machine.

[0012] Further, the pitch of the helical line of the cleaning member is 10-80 mm.

[0013] Further, the cross-sectional area of the dust collection channel gradually decreases in the direction away from the cleaning member.

[0014] Further, the length of the opening of the dust collection channel near one end of the cleaning member is greater than or equal to the pitch of the smaller end of the helical line in the axial direction of the cleaning member.

[0015] Further, the cleaning part includes at least one of a brush bar protruding in the radial direction of the cleaning member and a bristle inserted into the outer circumferential side of the cleaning member in the radial direction of the cleaning member.

[0016] Further, the cleaning part includes at least one of a brush bar protruding in the radial direction of the cleaning member and a bristle inserted into the outer circumferential side of the cleaning member in the radial direction of the cleaning member.

[0017] When the brush bar and the bristle are both multiple, the brush bar and the bristle are alternately arranged around the outer circumferential side of the cleaning member in the circumferential direction of the cleaning member.

[0018] Further, when the cleaning part is provided with only the brush bar, the cross-sectional area of the gap between two adjacent brush bars gradually decreases in the direction in which the pitch of the helical line gradually decreases; or,

[0019] When the cleaning part is provided with only the bristle, the cross-sectional area of the gap between two adjacent bristles gradually decreases in the direction in which the pitch of the helical line gradually decreases; or,

[0020] When the cleaning part is provided with the brush bar and the bristle, the cross-sectional area of the gap between the adjacent brush bar and the bristle gradually decreases in the direction in which the pitch of the helical line gradually decreases.

[0021] On the other hand, the present application also relates to a cleaning system, which comprises the cleaning device mentioned above.

[0022] In the utility model, the outer peripheral side of the cleaning piece is provided with a cleaning part which surrounds in the form of helix, and the pitch of the helix gradually decreases along the axial direction of the cleaning piece, and the inlet of the dust collecting box is arranged at the end of the pitch of the helix of the cleaning piece. This makes the cleaning device of the application can solve the problems of low dust collecting efficiency and slow dust collecting speed of the cleaning device. In actual work, the bottom of the main machine is close to the ground to be cleaned, at this time, the operator starts the cleaning device, and the cleaning piece at the bottom of the cleaning device can rotate around the axis of the cleaning piece. In this process, the cleaning part on the outer peripheral side of the cleaning piece can continuously roll and scrape the ground to be cleaned, so as to scrape the dust and melon seed shells and other garbage on the ground to be cleaned onto the cleaning part. Since the pitch of the helix of the cleaning part gradually decreases along the axial direction of the cleaning piece, the garbage scraped onto the cleaning part will be gradually pushed from the end of the pitch of the helix to the end of the pitch of the helix, and finally enter the dust collecting box from the inlet of the dust collecting channel. In this process, since the pitch of the helix gradually decreases along the axial direction of the cleaning piece, the speed of the garbage at the position closer to the end of the pitch of the helix is faster, so as to improve the dust collecting speed of the cleaning device, and also improve the dust collecting efficiency of the cleaning device to a certain extent.

[0023] That is to say, compared with the existing cleaning device, the cleaning device of the application sets the cleaning part with gradually decreasing pitch of helix, and sets the inlet of the dust collecting channel at the end of the smaller pitch, so as to solve the problems of low dust collecting efficiency and slow dust collecting speed of the cleaning device, and has the advantages of simple structure and easy processing. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0025] Figure 1 The structure diagram of the cleaning device disclosed by the utility model embodiment is in the first visual angle;

[0026] Figure 2 The structure diagram of the cleaning device disclosed by the utility model embodiment is in the second visual angle;

[0027] Figure 3 The structure diagram of the cleaning piece disclosed by the utility model embodiment is in the third visual angle;

[0028] Figure 4 The structure diagram of the cleaning piece disclosed by the utility model embodiment is in the fourth visual angle;

[0029] Figure 5 A structure diagram of the cleaning piece in the fifth visual angle is disclosed for the embodiments of the present application.

[0030] Figure 6 A structure diagram of the cleaning piece in the first visual angle is disclosed for the embodiments of the present application.

[0031] Figure 7 A sectional view of the cleaning piece in the first visual angle is disclosed for the embodiments of the present application.

[0032] Figure 8 A structure diagram of the cleaning piece and the dust collecting box in the first visual angle is disclosed for the embodiments of the present application.

[0033] Figure 9 A structure diagram of the cleaning piece and the dust collecting box after assembly in the first visual angle is disclosed for the embodiments of the present application.

[0034] Among the above-mentioned drawings, the following drawing marks are included:

[0035] 10, main machine; 11, groove; 20, cleaning piece; 21, rolling brush; 211, outer peripheral side; 212, cleaning part; 2121, helical line; P, pitch; 2122, brush bar; 213, free end; 214, connecting end; 215, pivoting part; 30, dust collecting box; 31, dust collecting channel; 311, inlet; d, length. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0037] It should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0038] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples herein are not intended to limit the scope of the present application unless specifically so stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only and not to limit the scope of the application. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail but can be assumed by those of ordinary skill in the art to be part of the present application. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Thus, other examples of exemplary embodiments can have different values. It is noted that like numbers and letters refer to like elements throughout the several views of the drawings and, as such, no further discussion with regard thereto is deemed necessary.

[0039] In order to solve the problems of low dust collection efficiency and slow dust collection speed of the cleaning device, according to the embodiments of the present application, a cleaning device is provided. The cleaning device of the present application will be described in detail below in combination with the drawings.

[0040] Referring to Figures 1 to 9 As shown in the drawings, according to the embodiments of the present application, a cleaning device is provided, which comprises a main machine 10, a cleaning member 20, and a dust collection box 30.

[0041] The cleaning member 20 is rotatably arranged at the bottom of the main machine 10 about its own axis, and the outer peripheral side surface 211 of the cleaning member 20 is provided with a cleaning portion 212 extending along the axial direction of the cleaning member 20 (i.e. the direction indicated by x in the drawings). Figure 1 、 Figure 8 and Figure 9 The cleaning portion 212 is in the form of a spiral line 2121 around the outer peripheral side surface 211 of the cleaning member 20, and the pitch P of the spiral line 2121 gradually decreases along the axial direction of the cleaning member 20. The dust collection box 30 is arranged on the main machine 10, and the dust collection box 30 is provided with a dust collection channel 31, and the inlet 311 of the dust collection channel 31 is located at the end of the spiral line 2121 of the cleaning member 20 where the pitch P is smaller.

[0042] In the present application, the outer peripheral side surface 211 of the cleaning member 20 is provided with a cleaning part 212 which is surrounded by a helical line 2121, and the pitch P of the helical line 2121 gradually decreases along the axial direction of the cleaning member 20, and the inlet 311 of the dust collecting box 30 is arranged at the end of the helical line 2121 of the cleaning member 20 where the pitch P is smaller. This makes the cleaning device of the present application solve the problems of low dust collecting efficiency and slow dust collecting speed of the cleaning device. In actual work, the bottom of the main machine 10 is close to the ground to be cleaned, at this time, the cleaning device is started, and the cleaning member 20 at the bottom of the cleaning device can rotate around the axis of the cleaning member 20. In this process, the cleaning part 212 on the outer peripheral side surface 211 of the cleaning member 20 can continuously roll and scrape the ground to be cleaned, so as to scrape the dust and melon seed shells on the ground to be cleaned onto the cleaning part 212. Since the pitch P of the helical line 2121 of the cleaning part 212 gradually decreases along the axial direction of the cleaning member 20, in the process of rotating the cleaning member 20, the garbage scraped onto the cleaning part 212 is gradually pushed from the end of the helical line 2121 where the pitch P is larger to the end of the helical line 2121 where the pitch P is smaller, and finally enters the dust collecting box 30 from the inlet 311 of the dust collecting channel 31. In this process, since the pitch P of the helical line 2121 gradually decreases along the axial direction of the cleaning member 20, this makes the speed of the garbage at the position closer to the end of the helical line 2121 where the pitch P is smaller faster, so as to improve the dust collecting speed of the cleaning device, and also improve the dust collecting efficiency of the cleaning device to a certain extent.

[0043] That is to say, compared with the existing cleaning device, the cleaning device of the present application solves the problems of low dust collecting efficiency and slow dust collecting speed of the cleaning device by arranging the cleaning part 212 with the pitch P of the helical line 2121 gradually decreasing, and arranging the inlet 311 of the dust collecting channel 31 at the end where the pitch P is smaller, which has the advantages of simple structure and easy processing. In addition, the cleaning device is provided with a suction device (not shown in the figure), and the suction channel (not shown in the figure) of the suction device is connected with the inside of the dust collecting box 30. When the cleaning device works, the suction device continuously sucks, and the garbage scraped on the cleaning part 212 of the cleaning member 20 is sucked through the dust collecting channel 31 of the dust collecting box 30, and finally the garbage is sucked into the inside of the dust collecting box 30 for collection.

[0044] The embodiment of the present application provides a cleaning device, which includes but is not limited to a sweeping robot (including one or more cleaning mechanisms), a mopping machine (a robot without a sweeping function), a sweeping and mopping integrated machine, a washing machine (such as a handheld washing machine, a non-handheld washing machine), or a base station of the above-mentioned sweeping robot, mopping machine, sweeping and mopping integrated machine, washing machine, etc.

[0045] Further, referring toFigures 1 to 4 As shown, the cleaning member 20 includes a free end 213 and a connecting end 214. The free end 213 is located at the end of the helical line 2121 of the cleaning member 20 with smaller pitch P, and the inlet 311 of the dust collection channel 31 is arranged close to the free end 213. The connecting end 214 is located at the end of the helical line 2121 of the cleaning member 20 with larger pitch P, and the cleaning member 20 is connected to the main machine 10 through the connecting end 214.

[0046] Specifically, the cleaning member 20 is connected to the main machine 10 through the connecting end 214, while the free end 213 of the cleaning member 20 is arranged in a suspended manner without being connected to the main machine 10. The connection of the connecting end 214 to the main machine 10 not only provides a support fulcrum for the cleaning member 20, but also allows the cleaning member 20 to rotate around its own axis through the connecting end 214. In actual work, the cleaning member 20 rotates around its own axis through the connecting end 214, and in this process, the cleaning part 212 of the cleaning member 20 can roll and scrape the garbage on the floor to be cleaned, so that the garbage can be scraped into the gap of the pitch P of the helical line 2121 (i.e. the gap formed by the outer peripheral side surface 211 of the cleaning member 20 and the helical line 2121 of the cleaning part 212). Since the connecting end 214 is located at the end of the helical line 2121 of the cleaning member 20 with larger pitch P, the free end 213 is located at the end of the helical line 2121 of the cleaning member 20 with smaller pitch P, and the pitch P of the helical line 2121 of the cleaning part 212 gradually decreases along the axis direction of the cleaning member 20, so that during the work of the cleaning device, the suction of the suction device of the cleaning device can form an air flow in the gap of the helical line 2121 of the cleaning part 212. The air flow in the gap of the helical line 2121 gradually decreases from the connecting end 214 to the free end 213. In this way, the faster the air flow in the gap of the helical line 2121 at the position closer to the free end 213, the faster the garbage enters the inside of the dust collection box 30. Moreover, the free end 213 of the cleaning member 20 is arranged in a suspended manner, so that the garbage such as hair that is easy to wrap around the cleaning member 20 can be more easily detached from the cleaning member 20 and finally enter the dust collection box 30 through the dust collection channel 31. Compared with the existing cleaning device in which both ends of the cleaning member 20 are connected to the main machine, the cleaning device of the present application has higher dust collection efficiency.

[0047] Further, referring to Figure 1 and Figure 2 As shown, the connecting end 214 of the cleaning member 20 is provided with a pivot part 215, and the connecting end 214 is rotatably connected to the main machine 10 through the pivot part 215. The cleaning member 20 has a first position in which it rotates around the pivot part 215 and protrudes at least partially out of the bottom of the main machine 10, and a second position in which it is retracted inside the main machine 10.

[0048] Specifically, the cleaning component 20 is connected to the pivot portion 215 via the connecting end 214. The pivot portion 215 is then connected to the drive unit (not shown) of the cleaning device, which is in turn fixedly connected to the main unit 10, thus allowing the cleaning component 20 to be mounted onto the main unit 10. During actual operation, the cleaning component 20 is in the second position (i.e.,... Figure 1 The position of the cleaning component 20 is shown. When the drive unit is activated, and the pivot 215 is connected to the power output end of the drive unit, the cleaning component 20 can rotate around its own axis under the drive of the drive unit, thereby cleaning the floor to be cleaned. Finally, with the combined action of the suction device and the cleaning unit 212, the debris can be collected into the dust collection box 30, thus achieving the purpose of cleaning the floor. After the cleaning device has been working for a period of time, in order to maintain a good cleaning effect, the operator needs to periodically remove the cleaning component 20 from the main unit 10 for cleaning. In this application, the cleaning component 20 has a first position (i.e., rotating around the pivot 215 and at least partially protruding from the bottom of the main unit 10)... Figure 2 (The position of the cleaning component 20 is shown). When the operator needs to remove the cleaning component 20 from the main unit 10 for cleaning, the cleaning component 20 can be rotated around the pivot 215, thereby switching the cleaning component 20 from the second position to the first position, thus facilitating the operator to remove the cleaning component 20 from the main unit 10 for cleaning. Furthermore, in this application, the angle between the axis of the cleaning component 20 and the bottom of the main unit 10 when the cleaning component 20 is in the second position can be adjusted according to actual conditions, as long as it facilitates the operator's removal of the cleaning component 20; this application does not impose specific limitations.

[0049] In other embodiments of this application, the cleaning component 20 may also be configured to protrude from the bottom of the main unit 10 without rotating around the pivot 215, but rather be connected to the main unit 10 using a snap-fit ​​mechanism (not shown in the figure) or other easily detachable connection mechanism. Thus, when the cleaning component 20 needs to be removed for cleaning, the operator can use the snap-fit ​​mechanism or other easily detachable connection mechanism located at the connection end 214 of the cleaning component 20 to remove the cleaning component 20 for cleaning. After the cleaning component 20 is cleaned, it can be reinstalled back onto the bottom of the main unit.

[0050] Further, see Figure 4 As shown, the pitch P of the spiral 2121 of the cleaning component 20 is between 10 mm and 80 mm.

[0051] Specifically, if the pitch P of the smaller end of the helical line 2121 of the cleaning piece 20 is less than 10 mm, the cleaning efficiency of the cleaning device may be reduced, because when the pitch P is less than 10 mm, the gap formed after the helical line 2121 is wound will be too small, which may cause larger garbage such as melon seed shells or peanut shells to be stuck in the gap formed after the helical line 2121 is wound, and manual intervention may be required to remove the stuck garbage. This not only reduces the cleaning efficiency of the cleaning device, but also reduces the user experience of the cleaning device. Furthermore, if the pitch P of the larger end of the helical line 2121 of the cleaning piece 20 is greater than 80 mm, the cleaning efficiency of the cleaning device may also be reduced. This is because when the pitch P is greater than 80 mm, the gap formed after the helical line 2121 is wound will be too large, which may cause the flow rate of the air flow generated by the suction device (not shown in the figure) in the gap to be too small, causing the speed of the cleaning part 212 to be too small when pushing the garbage from the larger end of the helical line 2121 to the smaller end of the helical line 2121. This directly reduces the dust collection speed of the cleaning device, and in severe cases, the cleaning device may not be able to clean the garbage on the ground in time, thereby reducing the cleaning efficiency of the cleaning device. Therefore, the pitch P of the helical line 2121 of the cleaning piece 20 of the present application is 10 mm to 80 mm.

[0052] Further, referring to Figures 7 to 9 As shown, the cross-sectional area of the dust collection channel 31 gradually decreases in the direction away from the cleaning piece 20.

[0053] Specifically, the cross-sectional area of the dust collection channel 31 is the area of the cross-section obtained by cutting the dust collection channel 31 in a direction perpendicular to the dust collection channel 31. In the present application, the cross-sectional area of the dust collection channel 31 gradually decreases in a direction away from the cleaning member 20, so that the dust collection channel 31 presents a "horn-like" structure. In this way, the dust collection efficiency of the cleaning device of the present application can be improved to some extent. In actual work, the suction device (not shown in the figure) of the cleaning device continuously sucks, so that the fast flowing air current in the gap formed after the spiral line 2121 of the cleaning member 20 is wound can drive the garbage in the gap to move towards the end of the spiral line 2121 with smaller pitch P (i.e. the position of the inlet 311 of the dust collection channel 31). In this process, since the opening of the end of the dust collection channel 31 with larger cross-sectional area (i.e. the inlet 311 of the dust collection channel 31) is close to the end of the spiral line 2121 of the cleaning member 20 with smaller pitch P, the dust collection range can be expanded to some extent, so that the garbage on the cleaning part 212 can be collected into the dust collection box 30 as much as possible. Moreover, the dust collection channel 31 with gradually decreasing cross-sectional area can accelerate the flow rate of the air current in the direction from the cleaning member 20 to the dust collection box 30, so that the suction efficiency of the suction device can be improved to some extent, and thus the dust collection efficiency of the cleaning device can be improved.

[0054] Further, referring to Figures 6 to 9 As shown, in the axial direction of the cleaning member 20, the length d of the opening of the end of the dust collection channel 31 close to the cleaning member 20 is greater than or equal to the pitch P of the end of the spiral line 2121 with smaller pitch P.

[0055] Specifically, the axial direction of the cleaning member 20 is the direction along which the spiral line 2121 of the cleaning member 20 winds. Figure 1 、 Figure 8 and Figure 9The direction indicated by arrow X. In the present application, the length d of the opening of the dust collection channel 31 near the one end of the cleaning member 20 is set to be greater than or equal to the pitch P of the smaller one end of the helical line 2121 for the purpose of improving the dust collection efficiency of the cleaning device. If the length d of the opening of the dust collection channel 31 near the one end of the cleaning member 20 is less than the pitch P of the smaller one end of the helical line 2121, the inlet 311 of the dust collection channel 31 cannot cover all the gaps formed by the helical line 2121 of the smaller one end of the helical line 2121, resulting in a decrease in the dust collection efficiency of the dust collection box 30, and further resulting in a decrease in the dust collection efficiency of the cleaning device. Therefore, in the present application, the length d of the opening of the dust collection channel 31 near the one end of the cleaning member 20 is greater than or equal to the pitch P of the smaller one end of the helical line 2121. Although the length d of the inlet 311 being greater than or equal to the pitch P of the smaller one end of the helical line 2121 can improve the dust collection efficiency of the cleaning device to a certain extent, the length d of the inlet 311 cannot be set too large, because if the length d of the inlet 311 is set too large, it can result in a decrease in the suction effect of the suction device, and further result in a decrease in the dust collection speed. Therefore, when the length d of the inlet 311 meets the requirements of the present application, the length d of the inlet 311 can also be set according to the actual situation so as not to affect the dust collection efficiency and the dust collection speed of the cleaning device.

[0056] Further, as shown in Figures 1 to 3 、 Figure 6 、 Figure 8 and Figure 9 , the cleaning part 212 includes at least one of a brush strip 2122 and bristles (not shown in the figure), the brush strip 2122 protrudes in the radial direction of the cleaning member 20, and the bristles are inserted into the outer circumferential side surface 211 of the cleaning member 20 in the radial direction of the cleaning member 20.

[0057] Exemplarily, the cleaning part 212 of the present application can be composed of brush strips 2122, can be composed of bristles, or can be composed of both brush strips 2122 and bristles. When the cleaning part 212 is composed of brush strips 2122, the brush strips 2122 not only surround the outer circumferential side surface 211 of the cleaning member 20 in the form of a spiral line 2121, but also protrude along the radial direction of the cleaning member 20. Such arrangement makes the cleaning part 212 not only better scrape the garbage on the ground to be cleaned into the gap formed after the spiral line 2121 is wound, but also push the garbage to a certain extent to the position where the inlet 311 of the dust collection channel 31 is located. When the cleaning part 212 is composed of bristles, the bristles with a certain density not only surround the outer circumferential side surface 211 of the cleaning member 20 in the form of a spiral line 2121, but also extend along the radial direction of the cleaning member 20. The arrangement of the bristles can enhance the cleaning effect of the cleaning device on the garbage such as hair, but the garbage such as hair is also easy to be entangled on the bristles, which requires manual participation in cleaning the bristles or setting a bristle cleaning mechanism (not shown in the figure). Therefore, the cleaning part 212 in the embodiments of the present application is generally composed of brush strips 2122, but the setting mode in which the cleaning part 212 is composed of bristles or composed of both brush strips 2122 and bristles is not excluded. The present embodiment shows the case in which the cleaning part 212 is composed of brush strips 2122 alone.

[0058] Further, as shown in Figures 1 to 3 , Figure 6 , Figure 8 and Figure 9 , the cleaning part 212 includes at least one brush strip 2122 and at least one bristle, wherein when the brush strip 2122 and the bristle are both multiple, the brush strip 2122 and the bristle alternately surround the outer circumferential side surface 211 of the cleaning member 20 along the circumferential direction of the cleaning member 20.

[0059] Exemplarily, in other embodiments of the present application, the multiple brush strips 2122 and the multiple bristles alternately surround the outer circumferential side surface 211 of the cleaning member 20 along the circumferential direction of the cleaning member 20, which makes the cleaning part 212 not only have the advantages of the brush strip 2122, but also have the advantages of the bristle. Such arrangement not only can scrape the garbage such as dust on the ground, but also can clean the garbage such as hair which is not easy to be scraped. Although the arrangement in which the brush strip 2122 and the bristle alternately surround the outer circumferential side surface 211 of the cleaning member 20 has the advantages of both the brush strip 2122 and the bristle, it also has the disadvantage of the bristle, i.e., the garbage such as hair on the bristle needs to be cleaned regularly by manual participation or by setting a bristle cleaning mechanism, so as to ensure that the dust collection efficiency and the dust collection speed of the cleaning device are not reduced.

[0060] In addition, in the present embodiment, the cleaning portion 212 includes four brush strips 2122, which are evenly spaced apart from each other and surround the outer circumferential side 211 of the cleaning member 20 in the circumferential direction of the cleaning member 20 (i.e. the direction indicated by a or b in Figure 8 and Figure 9 ). That is, when the cleaning member 20 is viewed from the perspective of the free end 213 of the cleaning member 20 (i.e. the perspective shown in Figure 5 ) or the perspective of the connecting end 214 of the cleaning member (i.e. the perspective shown in Figure 4 ), the angle between the two adjacent brush strips 2122 is 90°. In other embodiments of the present application, when the cleaning portion 212 is not four brush strips 2122, the angle between the two adjacent brush strips 2122 will also change accordingly. In addition, in some other embodiments of the present application, when the brush strips 2122 are multiple, the spacing between the brush strips 2122 in the circumferential direction of the cleaning member 20 can also be uneven, and the angle between the two adjacent brush strips 2122 can be adjusted as needed to make the cleaning member 20 have a better cleaning effect.

[0061] Further, as shown in Figures 1 to 3 , Figure 6 , Figure 8 and Figure 9 , when the cleaning portion 212 is provided with only brush strips 2122, the cross-sectional area of the gap between the two adjacent brush strips 2122 gradually decreases in the direction in which the pitch P of the helical line 2121 gradually decreases. Or when the cleaning portion 212 is provided with only bristles, the cross-sectional area of the gap between the two adjacent bristles gradually decreases in the direction in which the pitch P of the helical line 2121 gradually decreases. Or when the cleaning portion 212 is provided with both brush strips 2122 and bristles, the cross-sectional area of the gap between the two adjacent brush strips 2122 and bristles gradually decreases in the direction in which the pitch P of the helical line 2121 gradually decreases.

[0062] Specifically, the cross-sectional area of the gap is the area of the cross-section of the gap, i.e. Figure 8S and S' in the formula, the cross-sectional area is obtained by cutting the gap between the adjacent two helical lines 2121 along the direction perpendicular to the adjacent two helical lines 2121, and since the bristles 2122 or the bristles are protruded from the outer circumferential side 211 of the cleaning member 20 by a certain height, the cross-sectional area can be obtained when the gap between the adjacent two helical lines 2121 is cut. As the pitch P of the helical line 2121 gradually decreases, it means that the arrangement of the bristles 2122 or the bristles in the axial direction is more compact. This can increase the contact points between the cleaning part 212 and the ground per unit length during the rotation of the cleaning member, so that the dirt on the ground can be removed more effectively. As the pitch P of the helical line 2121 gradually decreases, the cross-sectional area of the gap between the adjacent bristles 2122 or the bristles also gradually decreases, that is, S > S', so that the dirt can be reduced in the escape space during the cleaning process, the thoroughness of the cleaning can be improved, and the space between the adjacent bristles 2122 or the bristles can be formed to be convergent, so that the speed of the bristles 2122 or the bristles for guiding the dirt into the dust collecting box 30 can be increased, and the cleaning speed can be improved. With the gradual change of the pitch P and the gap, the cleaning member 20 can gradually adapt to different sizes and adhesion forces of the dirt during the cleaning process. When the cleaning member 20 starts to clean the ground, the larger pitch P and the gap can help to loosen and capture large-particle dirt. As the pitch P and the gap decrease, the cleaning member 20 can process the residual small dirt on the ground more finely. In addition, during the cleaning process, the more compact arrangement of the bristles 2122 or the bristles and the gradually decreasing gap can help to use the cleaning liquid or the cleaning agent more effectively and reduce waste.

[0063] Exemplarily, when all the bristles 2122 are arranged on the cleaning part 212, the cross-sectional area of the gap between the adjacent two bristles 2122 gradually decreases. When all the bristles are arranged on the cleaning part 212, the cross-sectional area of the gap between the adjacent two bristles gradually decreases. When the bristles 2122 and the bristles are arranged in combination on the cleaning part 212, in order to ensure that the cleaning part 212 has high cleaning efficiency, the bristles 2122 and the bristles are arranged in an alternating and spaced manner along the circumferential direction of the cleaning member 20, and at this time, the cross-sectional area of the gap between the bristles 2122 and the bristles gradually decreases. The embodiment shows the case that all the bristles 2122 are arranged on the cleaning part 212.

[0064] Further, referring to Figures 1 to 3 , Figure 6 , Figure 8 and Figure 9 , the cleaning member 20 comprises a roller brush 21 or a roller, and the bottom of the main machine 10 is provided with a groove 11, and the roller brush 21 or the roller is rotatably arranged in the groove 11 around the axis thereof.

[0065] Specifically, the embodiment shows the case that the cleaning member 20 is a rolling brush 21. The rolling brush 21 can rotate around the pivot 215 connected with the rolling brush 21 to switch the rolling brush 21 between a first position (i.e. Figure 2 where the rolling brush 21 is located) and a second position (i.e. Figure 1 where the rolling brush 21 is located). When the cleaning device is needed to clean the ground to be cleaned, the rolling brush 21 is in the second position, at which the rolling brush 21 is located in the groove 11 at the bottom of the main machine 10 and the axis direction of the rolling brush 21 (i.e. Figure 1 the direction indicated by x) is the same as the extension direction of the groove 11. Such a setting mode makes the rolling brush 21 better fit the groove wall surface of the groove 11, so that the suction device of the cleaning device can better generate a fast airflow in the gap formed after the bristles 2122 of the rolling brush 21 are wound when the groove 11 is suctioned, thereby making the cleaning device of the application have a higher dust collection speed. At the same time, the rolling brush 21 rotates around its own axis in the groove 11, and since the bristles 2122 on the outer circumferential side 211 of the rolling brush 21 have a certain fit with the ground to be cleaned, the rolling brush 21 can clean the ground to be cleaned in the process of rotating. When the rolling brush 21 needs to be disassembled for cleaning, the rolling brush 21 can be switched from the second position to the first position, at which the operator can conveniently disassemble the rolling brush 21 from the main machine 10, and then reinstall it in the groove 11 at the bottom of the main machine 10 after cleaning.

[0066] Further, the application also relates to a cleaning system, which includes the sweeping robot, the scrubbing robot, the sweeping and scrubbing all-in-one machine, and the scrubbing machine.

[0067] It can be known from the above statements that the application at least solves the problems of low dust collection efficiency and slow dust collection speed of the cleaning device by setting the cleaning device composed of the main machine 10, the cleaning member 20, and the dust collection box 30. The cleaning member 20 is installed in the groove 11 at the bottom of the main machine 10, the driving device drives the cleaning member 20 to rotate in the groove 11, the bristles 2122 push the dust or other garbage to the inlet 311 of the dust collection channel 31, and finally enter the dust collection box 30 under the suction of the suction device. The principle that the bristles 2122 with varying pitches can improve the dust collection speed and efficiency is that the tangential speed (i.e. Figure 9 indicated by V0) of each bristle 2122 of the cleaning member 20 is constant in the process of uniform rotation of the cleaning member 20. In the process of movement of the dust and other garbage to the inlet 311, since the pitch P of the bristles 2122 continuously decreases, the pitch P and the helix angle (i.e. Figure 9As shown, α1, α2, and α3 are directly proportional. Therefore, along the direction from the connecting end 214 to the free end 213 of the cleaning component 20, the helix angle decreases (i.e., α1 > α2 > α3). From V1 = V0 / tanα1, V2 = V0 / tanα2, V3 = V0 / tanα3 and α1 > α2 > α3, we can obtain V3 > V2 > V1, that is, along... Figure 1 The direction indicated by x in the middle represents the axial velocity of dust and other debris (i.e., Figure 9 The speeds of V1, V2, and V3 in the process increase, thus accelerating the dust collection speed of the cleaning device. Furthermore, as the pitch P decreases, the cross-sectional area of ​​the gap between two adjacent brush strips 2122 (i.e., ...) increases. Figure 8 The airflow rates (represented by Q in this application) between two adjacent brush bars 2122 will also decrease, i.e., S > S′. However, the airflow velocity (i.e., V) between two adjacent brush bars 2122 remains unchanged. a and V a The flow rate (Q) then changes. Taking the location of S as an example, according to the flow rate formula "flow rate Q = velocity V", the flow rate changes. a The airflow velocity V can be determined by the cross-sectional area S. a It increases as the pitch P decreases. The increased airflow velocity V a This can more effectively blow the dust remaining on the groove wall of the groove 11 into the dust collection box 30, thereby improving the dust collection efficiency of the cleaning device.

[0068] It is evident that the cleaning device of this application can solve the problems of low dust collection efficiency and slow dust collection speed through a simple structural design, and can also improve the user experience of the cleaning device for operators to a certain extent.

[0069] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0070] In addition, it needs to be explained that the use of "first", "second" and the like to limit the parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning if there is no further declaration, and therefore cannot be understood as limiting the protection scope of the utility model.

[0071] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cleaning device, characterized in that, The application relates to a cleaning device, which comprises: a main body (10); a cleaning element (20) rotatably arranged on the bottom of the main body (10) along an axis of the cleaning element (20), and an outer circumferential surface (211) of the cleaning element (20) is provided with a cleaning part (212) extending along the axis of the cleaning element (20), the cleaning part (212) is arranged in a spiral line (2121) around the outer circumferential surface (211) of the cleaning element (20), and the pitch (P) of the spiral line (2121) gradually decreases along the axis of the cleaning element (20); a dust collecting box (30) arranged on the main body (10), and the dust collecting box (30) is provided with a dust collecting channel (31), and an inlet (311) of the dust collecting channel (31) is located at an end of the spiral line (2121) of the cleaning element (20) with a smaller pitch (P).

2. The cleaning device of claim 1, wherein, The cleaning element (20) comprises a free end (213) and a connecting end (214), wherein the free end (213) is located at an end of the spiral line (2121) of the cleaning element (20) with a smaller pitch (P), and the inlet (311) of the dust collecting channel (31) is arranged close to the free end (213); the connecting end (214) is located at an end of the spiral line (2121) of the cleaning element (20) with a larger pitch (P), and the cleaning element (20) is connected to the main body (10) through the connecting end (214).

3. The cleaning device of claim 2, wherein, The connecting end (214) of the cleaning element (20) is provided with a pivot part (215), the connecting end (214) is rotatably connected to the main body (10) through the pivot part (215), and the cleaning element (20) has a first position of rotating around the pivot part (215) and protruding at least partially from the bottom of the main body (10) and a second position of being inwardly retracted to the inner side of the main body (10).

4. The cleaning device of claim 1, wherein, The pitch (P) of the spiral line (2121) of the cleaning element (20) is 10-80 mm.

5. The cleaning device of claim 1, wherein, In a direction away from the cleaning element (20), the cross-sectional area of the dust collecting channel (31) gradually decreases.

6. The cleaning device of claim 5, wherein, In the axial direction of the cleaning element (20), the length (d) of the opening of the dust collecting channel (31) close to one end of the cleaning element (20) is greater than or equal to the pitch (P) of the end of the spiral line (2121) with a smaller pitch (P).

7. The cleaning device of claim 1, wherein, The cleaning part (212) comprises at least one of a brush strip (2122) and a brush hair, the brush strip (2122) protrudes in the radial direction of the cleaning element (20), and the brush hair is inserted into the outer circumferential surface (211) of the cleaning element (20) in the radial direction of the cleaning element (20).

8. The cleaning device of claim 7, wherein, The cleaning part (212) comprises at least one brush strip (2122) and at least one brush hair, wherein, when the brush strip (2122) and the brush hair are both multiple, the brush strip (2122) and the brush hair are alternately arranged around the outer circumferential surface (211) of the cleaning element (20) in the circumferential direction of the cleaning element (20).

9. The cleaning device of claim 7, wherein, When the cleaning part (212) is provided with only the brush strips (2122), the cross-sectional area of the gap between two adjacent brush strips (2122) gradually decreases in the direction in which the pitch (P) of the helical line (2121) gradually decreases; or, When the cleaning part (212) is provided with only the brush strips (2122), the cross-sectional area of the gap between two adjacent brush strips (2122) gradually decreases in the direction in which the pitch (P) of the helical line (2121) gradually decreases; or, When the cleaning part (212) is provided with only the brush strips (2122), the cross-sectional area of the gap between two adjacent brush strips (2122) gradually decreases in the direction in which the pitch (P) of the helical line (2121) gradually decreases; or, 10. A cleaning system characterized by, The cleaning system comprises the cleaning device according to any one of claims 1 to 9. The cleaning system comprises the cleaning device according to any one of claims 1 to 9.

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