SUCTION PORT STRUCTURE OF CLEANING MACHINE AND CLEANING MACHINE THEREOF

Description

The present application claims priority to Chinese Patent Application No. 202110714670.X, entitled “SUCTION PORT STRUCTURE OF CLEANING DEVICE AND CLEANING MACHINE THEREOF”, Chinese Patent Application No. 202121430838.6, entitled “DRIVING MODULE OF CLEANING DEVICE AND CLEANING DEVICE THEREOF”, and Chinese Patent Application No. 202121430820.6, entitled “SCRAPING STRIP OF CLEANING DEVICE AND CLEANING DEVICE THEREOF”, which are filed with the China National Intellectual Property Administration on Jun. 26, 2021, and Chinese Patent Application No. 202110764909.4, which is filed with the China National Intellectual Property Administration on Jul. 7, 2021 and entitled “WATER VAPOR SEPARATION APPARATUS AND CLEANING DEVICE THEREOF”, which are incorporated herein by reference in their entireties.

TECHNICAL FIELD

The present invention relates to the technical field of cleaning, and in particular, to a suction port structure of a cleaning machine, and further relates to a cleaning machine related to the suction port structure.

BACKGROUND

With continuous progress and development of science and technology, people have higher expectations for their living standards. As cleaning is an essential daily routine in people's life, a cleaning machine having a self-cleaning function has become an essential daily cleaning tool for people. Existing cleaning machines are usually manual cleaning tools or electric cleaning machines (for example, electric vacuum cleaners or cleaning robots). Obviously, although the manual cleaning tools are low in cost, a lot of manpower and time are required, and the cleaning workload is still heavy, while the electric cleaning machines are either single in cleaning function (for example, electric vacuum cleaners) or too high in cost (for example, existing cleaning robots).

In order to achieve a good balance between cost saving and intelligent convenience, a vacuum and mop combo product with a general cost and a certain degree of automatic cleaning effect has appeared currently, and has a main cleaning structure including a roller brush driven by a roller brush motor and in contact with a ground, and a suction port communicating with a suction fan. The suction port provides a function of sucking the ground by the suction fan, so that garbage on the ground is removed by suction. However, the existing suction port structure extends from a left side to a right side of a cleaning device, is long, and thus has the problem of poor uniformity of suction effect. Moreover, the suction port structure usually includes a scraping strip structure. During actual operation of the cleaning device, deformation of the scraping strip easily leads to blockage of the suction port, which has an obvious negative impact on the suction function of the cleaning device.

Therefore, the applicant desires to seek technical solutions to alleviate the above technical problems.

SUMMARY

In view of this, an objective of the present invention is to provide a suction port structure of a cleaning machine and a cleaning machine thereof, which can achieve a good water scraping effect and an effect of accelerated cleaning of residual water on a ground.

The technical solutions of the present invention are as follows:

A suction port structure of a cleaning machine is provided, where the cleaning machine includes a housing, where a scraping strip that can be in interference contact with a ground is mounted and connected to the housing, and the scraping strip is in corresponding clearance fit with the housing adjacent to the scraping strip to form a suction port communicating with a suction channel.

Preferably, a plurality of spacing portions that are distributed at intervals are arranged in the suction port and are configured to form a plurality of suction port units facilitating balanced pressure distribution.

It should be noted that the spacing portion included in the present application refers to a structural member providing a suction spacing function for the suction port, and a specific shape of the spacing portion is not specifically limited.

Preferably, the spacing portions are integrally or detachably mounted on the housing or the scraping strip, and extend in a direction of the suction port along mounting surfaces of the spacing portions.

Preferably, the spacing portions each include a bent surface and/or a plane and/or a curved surface.

Preferably, a plurality of flow-dividing ribs are arranged at a position at which the suction port communicates with the suction channel.

Preferably, outlet sides of the suction port units are located on flow-dividing inlet sides of the flow-dividing ribs.

Preferably, a lower end of the scraping strip is mounted on the housing relatively swingably.

Preferably, the scraping strip includes a scraping strip body and a scraping strip mounting portion mounted on the housing, where the scraping strip body is provided with a scraping strip body upper end detachably or integrally connected to the scraping strip mounting portion, a thin-walled section located in the middle, and a scraping strip body lower end in interference contact with the ground, and the scraping strip body lower end can swing relative to the scraping strip body upper end by using the thin-walled section.

Preferably, a cleaning machine uses the suction port structure described above.

Preferably, the cleaning machine includes a housing and a roller brush capable of being in rolling contact with a ground, where a rear end of the roller brush is provided with a collection inlet provided corresponding to the roller brush, and the collection inlet communicates with a garbage collection area; the housing located at the rear end of the roller brush is provided with a collection guide surface connected to the collection inlet, and a scraping strip is arranged on a side of the collection guide surface away from the roller brush; and the collection guide surface is in corresponding clearance fit with the scraping strip to form the suction port.

Preferably, spacing portions are located on a back of the collection guide surface and correspondingly fit with the scraping strip to form suction port units; and a spacing is provided between the collection guide surface and the ground.

Preferably, the roller brush includes a driving roller driven by a drive and relatively rotatably mounted on the housing, and a periphery of the driving roller is wrapped with a flexible roller brush for flexible contact with the ground; garbage picked up through the rolling contact is collected to the garbage collection area through the collection inlet under a rotating action of the flexible roller brush; and/or garbage on the ground is removed through the suction port.

Preferably, the suction port communicates with a suction fan through a suction channel; the cleaning machine includes a water vapor separation apparatus, the water vapor separation apparatus includes a water vapor separation mounting housing provided with a water vapor separation area and a liquid collection area, and the water vapor separation mounting housing is mounted and connected to the suction fan; the water vapor separation area includes a water vapor separation portion connected to an airflow inlet end, an airflow outlet end, and a liquid outlet end, and the airflow inlet end communicates with the suction port through the suction channel; the airflow outlet end communicates with an air inlet of the suction fan; and the liquid collection area correspondingly fits with the liquid outlet end to collect a liquid.

Preferably, the water vapor separation portion includes at least one flow separation unit mounted in the water vapor separation mounting housing and/or at least one airflow centrifugation unit mounted in the water vapor separation mounting housing; the flow separation unit is in contact with liquid parts in airflow, so that the liquid parts are collected and then separated from the airflow; and the liquid is centrifugally separated from the airflow by a centrifugal rotation action of the airflow centrifugation unit on the airflow.

Preferably, the water vapor separation portion includes a flow separation unit and an airflow centrifugation unit mounted in the water vapor separation mounting housing, where the suction channel connected to the airflow inlet end uses a tangential air inlet to implement primary centrifugal separation of the liquid entering the airflow in the water vapor separation area; and the flow separation unit is arranged corresponding to the tangential air inlet, and an outlet of the airflow centrifugation unit is used as the airflow outlet end.

Preferably, the airflow centrifugation unit includes a curved centrifugal member and a centrifugal impeller that are detachably or integrally mounted and connected to each other, where the centrifugal impeller is mounted and located below the curved centrifugal member and above the airflow inlet end.

Preferably, the suction fan includes a suction motor, an impeller, an impeller cover and a fan housing that are mounted and connected into a whole, and an inlet of the impeller cover communicates with the airflow outlet end; and the water vapor separation mounting housing and the fan housing are mounted and connected into a whole.

Preferably, the housing is provided with a roller brush cover arranged opposite to a front end of the roller brush, and the roller brush cover is provided with a dust blowing blocking portion extending in a direction of the roller brush, so as to prevent the roller brush from forming local airflow blowing to the ground during rotation.

It should be noted that the ground included in the present application refers to any working surface that needs to be cleaned, and there are no special restrictions on a specific representation form and shape of the ground.

According to the present application, the housing and the scraping strip of the cleaning machine that are in corresponding clearance fit form the suction port structure communicating with the suction channel. During actual operation of the cleaning machine according to the present application, when the cleaning machine is driven forward to clean the ground, the scraping strip is deformed backward to interfere with the ground, which can achieve a good water scraping effect (certainly including other liquid garbage), so that residual water not centrifugally sucked by the roller brush is collected after passing through the collection guide surface. When the cleaning machine is pulled backward, since the residual water on the ground has been substantially cleaned up, there is only a little residual water left in this case, the scraping strip is deformed forward, and the suction port becomes smaller, which can improve a suction flow rate, strengthen granulation of a water film, and facilitate further removal of the residual water on the ground. In addition, after the diameter of the suction port is narrowed, suction port areas on two sides become smaller and the resistance becomes larger, while an area below the collection guide surface remains unchanged, which is beneficial to formation of a main flow channel below the collection guide surface, thus sucking away the water on a lower portion of the roller brush and further improving an effect of accelerated cleaning of the residual water on the ground.

According to the present application, in particular, the plurality of spacing portions are arranged in the suction port, and correspondingly fit with the scraping strip to form the plurality of suction port units distributed at intervals. This obviously facilitates balanced distribution of a suction pressure of the suction port during a suction operation and improves uniformity of the suction effect. In addition, the spacing portions in the present application are located in the suction port, so that when the scraping strip is deformed due to interference contact with the ground during the operation of the cleaning machine, the suction port can be reliably prevented from being blocked by the deformed scraping strip, and it is ensured that the suction function of the cleaning machine is not negatively affected.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic diagram of a partial structure of a cleaning machine according to a specific implementation of the present invention;

FIG. 2 is an enlarged view of a structure at a part A of FIG. 1;

FIG. 3 is a schematic exploded view of a partial structure of a cleaning machine according to a specific implementation of the present invention;

FIG. 4 is a sectional view of a partial structure of a cleaning machine according to a specific implementation of the present invention;

FIG. 5 is a schematic structural diagram of a spaced mounting strip according to a specific implementation of the present invention;

FIG. 6 is a schematic diagram of a mounting structure (structure with a hidden scraping strip 10) of spacing portions in a cleaning machine according to a specific implementation of the present invention;

FIG. 7 is a schematic diagram of a mounting structure (structure with a hidden suction port) of flow-dividing ribs in a cleaning machine according to a specific implementation of the present invention;

FIG. 8 is a schematic structural diagram of a scraping strip according to a specific implementation of the present invention;

FIG. 9 is a schematic diagram of a structure obtained after rotating FIG. 8 by a certain angle;

FIG. 10 is an enlarged view of a structure at a part B of FIG. 8;

FIG. 11 is a schematic structural diagram of a roller brush cover according to a specific implementation of the present invention;

FIG. 12 is a schematic diagram of a structure obtained after rotating FIG. 1 by a certain angle;

FIG. 13 is a sectional view of another partial structure of a cleaning machine according to a specific implementation of the present invention;

FIG. 14 is a schematic diagram of a mounting structure of a water vapor separation apparatus and a suction fan in Embodiment 1 of the present invention;

FIG. 15 is a schematic exploded view of a structure of FIG. 14;

FIG. 16 is a sectional view of FIG. 14;

FIG. 17 is a schematic diagram of a mounting structure of a water vapor separation apparatus and a suction fan in Embodiment 2 of the present invention;

FIG. 18 is a sectional view of FIG. 17;

FIG. 19 is an exploded view of a structure of FIG. 17;

FIG. 20 is a schematic diagram of a mounting structure of a water vapor separation apparatus and a suction fan in Embodiment 3 of the present invention;

FIG. 21 is a sectional view of FIG. 20; and

FIG. 22 is a sectional view of a mounting structure of a water vapor separation apparatus and a suction fan in Embodiment 4 of the present invention.

DESCRIPTION OF EMBODIMENTS

An embodiment of the present invention discloses a suction port structure of a cleaning machine. The cleaning machine includes a housing, where a scraping strip capable of being in interference contact with a ground is mounted and connected to the housing, and the scraping strip is in corresponding clearance fit with the housing adjacent to the scraping strip to form a suction port communicating with a suction channel; the housing is provided with a collection guide surface connected to a collection inlet, and the collection inlet communicates with a garbage collection area; and the collection guide surface is in corresponding clearance fit with the scraping strip to form the suction port.

An embodiment of the present invention further discloses a cleaning machine using the suction port structure described above. The cleaning machine includes a housing and a roller brush capable of being in rolling contact with a ground, where a rear end of the roller brush is provided with a collection inlet provided corresponding to the roller brush, and the collection inlet communicates with a garbage collection area; the housing located at the rear end of the roller brush is provided with a collection guide surface connected to the collection inlet, and a scraping strip is arranged on a side of the collection guide surface away from the roller brush.

To enable a person skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are clearly and comprehensively described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are merely some, rather than all, of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

Embodiment 1: Referring to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, a suction port structure of a cleaning machine is provided. The cleaning machine includes a housing 1, where a scraping strip 10 capable of being in interference contact with a ground is mounted and connected to the housing 1, and the scraping strip 10 is in corresponding clearance fit with the housing 1 adjacent to the scraping strip to form a suction port 30 communicating with a suction channel 20. The housing 1 is provided with a collection guide surface 61 connected to a collection inlet 3, and the collection guide surface 61 is in corresponding clearance fit with the scraping strip 10 to form the suction port 30 described above. Preferably, in this implementation, the cleaning machine includes a housing 1 and a roller brush 2 capable of being in rolling contact with a ground, where a rear end of the roller brush 2 is provided with a collection inlet 3 provided corresponding to the roller brush, and the collection inlet 3 communicates with a garbage collection area 4; the housing 1 located at the rear end of the roller brush is provided with a collection guide surface 61 connected to the collection inlet 3, and the scraping strip 10 described above is arranged on a side of the collection guide surface 61 away from the roller brush.

A plurality of spacing portions 41 that are distributed at intervals are arranged in the suction port 30 and are configured to form a plurality of suction port units facilitating balanced pressure distribution. During implementation of the present application, the spacing portions 41 are integrally or detachably mounted on the housing 1 or the scraping strip 10, and extend in a direction of the suction port 30 along mounting surfaces of the spacing portions. Preferably, further referring to FIG. 5 and FIG. 6, to further improve a spaced mounting effect in the suction port 30, in this implementation, the spacing portions 41 are arranged on a spaced mounting strip 42, the spacing portions 41 are specifically grid spacing sheets, and the grid spacing sheets extend in the direction of the suction port 30 along the spaced mounting strip 42 and are fixedly mounted on the housing 1 by the spaced mounting strip 42. In another implementation, the grid spacing sheets may be directly arranged on the housing 1 by using an integrated structure or may be arranged on the scraping strip 10, but considering the material of the scraping strip 10, the applicant suggests that the spacing portions 41 be arranged on the housing 1 as a preferred solution.

Preferably, in this implementation, the spacing portions 41 each include a bent surface and/or a plane and/or a curved surface. Specifically, in this implementation, to ensure mounting strength, the spacing portion 41 includes an inclined plane 41a mounted and connected to the spaced mounting strip 42 and a straight plane 41b as a spacing body, which are combined to form a bent surface shape.

Further referring to FIG. 6 and FIG. 7 and in conjunction with FIG. 4, preferably, in this implementation, a plurality of flow-dividing ribs 50 are arranged at a position at which the suction port 30 communicates with the suction channel 20; and outlet sides 30a of the suction port units are located on flow-dividing inlet sides of the flow-dividing ribs 50. Preferably, to help ensure that water flow is smoothly collected into the suction channel 20, in this implementation, the suction channel 20 includes a suction channel port 21, and a length of the suction port 30 is greater than a length of the suction channel port 21. The length of the suction port 30 and the length of the suction channel port 21 specifically refer to a length of the cleaning machine in a horizontal direction on left and right sides (different from forward and backward directions of the cleaning machine). To improve the ability of sucking the ground, in this implementation, the suction port 30 extends from the left side to the right side of the cleaning machine, and the suction channel port 21 is located on or near a central axis (relative to left-right directions) of the cleaning machine.

In this implementation, each flow-dividing rib 50 includes a first flow-dividing rib end 51 in a direction close to the suction port 30 and a second flow-dividing rib end 52 in a direction close to the suction channel port 21, and the first flow-dividing rib end 51 integrally extends to the second flow-dividing rib end 52 corresponding thereto. A spacing between adjacent first flow-dividing rib ends 51 is greater than a spacing between second flow-dividing rib ends 52 corresponding to the adjacent first flow-dividing rib ends.

Preferably, in this implementation, curved flow-dividing rib sheets are used as the flow-dividing ribs 50. In another implementation, planar flow-dividing rib sheets may be used as flow-dividing ribs, or flow-dividing ribs in other shapes may be used, or curved flow-dividing rib sheets are used as some flow-dividing ribs while planar flow-dividing rib sheets are used as the remaining flow-dividing ribs. These are conventional technical choices that can be made by a person skilled in the art based on requirements for flow-dividing effects of the flow-dividing ribs, and are not described in detail one by one in this embodiment.

In this implementation, a number of flow-dividing ribs 50 may be specifically selected based on an actual length of the suction port 30 and an actual length of the suction channel port 21, and is not specially limited in this embodiment. Further, preferably, in this implementation, there may be 3-12 flow-dividing ribs 50, and more preferably, there are 3-7.

It should also be noted that, preferably, to cause the water flow to be smoothly collected into the suction channel 20, in this implementation, areas of the flow-dividing ribs 50 may be different, specifically, areas of flow-dividing ribs 50 close to the left and right ends are greater than areas of flow-dividing ribs 50 close to the central axis of the cleaning machine. Flow-limiting steps 31 located on two sides respectively are further arranged at a joint between the suction port 30 and the suction channel 20.

In this implementation, a lower end of the scraping strip 10 is mounted on the housing 1 relatively swingably. Further referring to FIG. 8, FIG. 9 and FIG. 10, further, preferably, in this implementation, the scraping strip 10 includes a scraping strip body 11 and a scraping strip mounting portion 12 mounted on the housing. Preferably, in this implementation, the scraping strip mounting portion 12 and the scraping strip body 11 are formed into a whole by using a two-color injection molding process or a soft-hard co-extrusion process, and in other implementations, other molding methods may be used, which is not specially limited in this embodiment.

In this implementation, the scraping strip body 11 is provided with a scraping strip body upper end 11a detachably or integrally connected to the scraping strip mounting portion 12, a thin-walled section 11b located in the middle, and a scraping strip body lower end 11c in interference contact with the ground, and the scraping strip body lower end 11c can swing relative to the scraping strip body upper end 11a by using the thin-walled section 11b. Further, preferably, in this implementation, a thickness range of the thin-walled section 11b is 0.3-0.6 mm, which is beneficial to smooth swing of the scraping strip body lower end 11c. A length range of the scraping strip body lower end 11c is 0.7-2 mm. An interference distance range between the scraping strip body lower end 11c and the ground is 0.5-2 mm, and the preferred interference distance can ensure that the scraping strip 10 has an enough contact surface with the ground. A too small contact surface may lead to water leakage of the scraping strip, and a too large contact surface may lead to excessive friction between the cleaning machine and the ground, resulting in difficulty in push by a user or high power consumption of the machine, and the scraping strip 10 is prone to wear.

It should be noted that the thin-walled section 11b included in this embodiment specifically means that the thickness of the thin-walled section is less than the thicknesses of the scraping strip body upper end 11a and the scraping strip body lower end 11c that are adjacent to the thin-walled section. The thin-walled section 11b specifically may have a recessed shape or an arc shape, and certainly other shapes may be used.

Preferably, in this implementation, the scraping strip body lower end 11c is provided with a plurality of gap portions 11d that are distributed at intervals, and the arrangement of the gap portions 11d can facilitate the provision of a spacing space when the scraping strip body 11 is in interference contact with the ground, thereby preventing excessive contact friction between the scraping strip 10 and the ground.

Preferably, in this implementation, the scraping strip mounting portion 12 is fixedly mounted on the housing 1 by using a fastener (specifically, a screw may be used, with a screw hole 12a shown in the figure), or may be mounted on the housing 1 by using a clamping structure (specifically, a plurality of clamping teeth 12b may be used), and certainly, other well-known mounting methods may also be used, which is not specifically limited in this embodiment. These are conventional technical choices that can be made by a person skilled in the art based on content described in the present application.

This embodiment further provides a cleaning machine, which uses the suction port 30 structure described above. Preferably, still referring to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, in this implementation, the cleaning machine includes a housing 1 and a roller brush 2 capable of being in rolling contact with a ground, where a rear end of the roller brush is provided with a collection inlet 3 provided corresponding to the roller brush, and the collection inlet 3 communicates with a garbage collection area 4; the housing 1 located at the rear end of the roller brush is provided with a collection guide surface 61 connected to the collection inlet 3, and the scraping strip 10 described above is arranged on a side of the collection guide surface 61 away from the roller brush; and the collection guide surface 61 is in corresponding clearance fit with the scraping strip 10 to form the suction port 30 described above. Further, preferably, the roller brush 2 includes a driving roller 2a driven by a drive (specifically, a motor may be used) and relatively rotatably mounted on the housing 1, and a periphery of the driving roller 2a is wrapped with a flexible roller brush 2b for flexible contact with the ground; garbage picked up through the rolling contact is collected to the garbage collection area 4 through the collection inlet 3 under a rotating action of the flexible roller brush 2b; and residual garbage (mainly including residual water) on the ground is removed through the suction port 30. The suction channel 20 is connected to the suction fan (known structure, as shown in FIG. 14) to form a negative pressure effect on the suction port 30. The garbage is transferred and collected to the garbage collection area 4 through the suction channel 20. The garbage collection area 4 may be provided separately or may be of a structure integrally mounted with the garbage collection area 4 described above, which is not specially limited in this embodiment.

Preferably, the spaced mounting strip 42 is mounted and located on a back of the collection guide surface 61, and correspondingly fits with the scraping strip 10 to form suction port units; and a spacing is provided between the collection guide surface 61 and the ground. Specifically, preferably, the spacing may be set to 1 mm, and relatively fits with flannelette fibers on the flexible roller brush 2b in actual operation to ensure that all ground garbage with a diameter less than 0.5 mm is transferred to the garbage collection area 4 by a centrifugal force of the roller brush.

Further referring to FIG. 11 and FIG. 12, preferably, in this implementation, the housing 1 is provided with a roller brush cover 81 arranged opposite to a front end of the roller brush, and the roller brush cover 81 is provided with a dust blowing blocking portion 82 extending in a direction of the roller brush, so as to prevent the roller brush 2 from forming local airflow blowing to the ground during rotation. Preferably, in this implementation, the dust blowing blocking portion 82 is located at a lower end of the roller brush cover 81 to prevent the roller brush 2 from forming local airflow blowing to the ground during rotation. To further improve the dust blowing blocking effect, in this implementation, a mounting height of the dust blowing blocking portion 82 is less than a mounting height of the central axis of the roller brush, and no pressing contact is performed between the dust blowing blocking portion 82 and the roller brush 2 (that is, the dust blowing blocking portion in this embodiment is not used as a water scraping structure of the roller brush).

In this implementation, the dust blowing blocking portion 82 and the roller brush cover 81 are of an integrated structure, and specifically, an integrated processing molding process, an integrated injection molding process or another suitable machining process may be used. Certainly, in another implementation, the dust blowing blocking portion 82 may be of a detachable connection structure. For example, the dust blowing blocking portion 82 is made into a detachable member and then snap-fitted at the lower end of the roller brush cover 81, or certainly, may be fixedly mounted at the lower end of the roller brush cover 81 in another fastening manner. Specifically, preferably, in this implementation, the dust blowing blocking portion 82 is in the shape of a barb, or certainly, may be in another shape, provided that it is ensured that the dust blowing blocking portion extends in a direction of the roller brush 2 to cut off a centrifugal effect generated by the roller brush 2 itself, and a specific shape used is not specifically limited. Further, preferably, in this implementation, fibers of the flexible roller brush 2b come into frictional contact with the dust blowing blocking portion 82 when the roller brush 2 is driven to rotate, so as to prevent fibers of the roller brush 2 from forming local airflow blowing to the ground during rotation. Specifically, preferably, in this implementation, the dust blowing blocking portion 82 is made of a flexible material (which may be, for example, a soft rubber strip or another well-known flexible material), which can reduce frictional resistance between fiber fluff of the roller brush and the dust blowing blocking portion, thereby reducing power consumption of the cleaning machine 1. In this embodiment, by arrangement of the dust blowing blocking portion 82 on the roller brush cover 81, when the roller brush 2 rotates and operates on the ground, the dust blowing blocking portion 82 at a front end of the roller brush can directly cut off the centrifugal effect generated by the roller brush 2 itself, thus effectively preventing the roller brush 2 from forming local airflow blowing to the ground during rotation, and avoiding the negative cleaning problem that light garbage at the front end of the roller brush is blown away by the local airflow. Moreover, the dust blowing blocking portion 82 provided in the present application has a simple structure and a low cost, and can be easily popularized and implemented in batches.

Specifically, preferably, for the remaining related structures of the cleaning machine in the present application, reference may be directly made to related described content of prior application patents No. CN111588318A, No. CN111543892A and No. CN112806925A, and details are not specifically described again in this embodiment. Similar technical effects can be brought by the application of this embodiment. A person skilled in the art can also apply the flow-dividing structure provided in this embodiment to other types of cleaning machines having a suction function, which is not specially limited in this embodiment. In addition, the cleaning machine may be of a hand-held integrated type with a handle or a cleaning robot type without a handle, which is the applicable implementation scope of the present application, and is also not specially limited in this embodiment.

In this embodiment, the housing 1 and the scraping strip 10 of the cleaning machine in corresponding clearance fit form the suction port 30 structure communicating with the suction channel. In addition, in particular, the plurality of spacing portions 41 are arranged in the suction port 30, and correspondingly fit with the scraping strip 10 to form the plurality of suction port units distributed at intervals. This obviously facilitates balanced distribution of a suction pressure of the suction port 30 during a suction operation and improves uniformity of the suction effect. In addition, the spacing portions 41 in this embodiment are located in the suction port 30, so that when the scraping strip 10 is deformed due to interference contact with the ground during the operation of the cleaning machine, the suction port 30 can be reliably prevented from being blocked by the deformed scraping strip 10, and it is ensured that the suction function of the cleaning machine is not negatively affected.

During actual operation of the cleaning machine according to this embodiment, when the cleaning machine is driven forward to clean the ground, the scraping strip 10 is deformed backward to interfere with the ground, which can achieve a good water scraping effect (certainly including other liquid garbage), so that residual water not centrifugally sucked by the roller brush 2 is collected after passing through the collection guide surface 61. When the cleaning machine is pulled backward, since the residual water on the ground has been substantially cleaned up, there is only a little residual water left in this case, the scraping strip 10 is deformed forward, and the suction port 30 becomes smaller, which can improve a suction flow rate, strengthen granulation of a water film, and facilitate further removal of the residual water on the ground. In addition, after the diameter of the suction port 30 is narrowed, suction port areas on two sides become smaller and the resistance becomes larger, while an area below the collection guide surface 61 remains unchanged, which is beneficial to formation of a main flow channel below the collection guide surface 61, thus sucking away the water on a lower portion of the roller brush 2 and further improving an effect of accelerated cleaning of the residual water on the ground.

Referring to FIG. 13 and FIG. 14, preferably, in this implementation, the suction port 30 communicates with a suction fan 70 through a suction channel 20, and the cleaning machine 1 includes a water vapor separation apparatus. Further referring to a water vapor separation apparatus 9 shown in FIG. 14, FIG. 15 and FIG. 16, the apparatus includes a water vapor separation mounting housing 93 provided with a water vapor separation area 9a and a liquid collection area 92, and the water vapor separation mounting housing 93 (a cover plate type detachable mounting structure may be used, which is shown in the figure but not marked) and the suction fan 70 are mounted and connected into a whole; the water vapor separation area 9a includes a water vapor separation portion 91 connected to an airflow inlet end 91b, an airflow outlet end 91c, and a liquid outlet end 91a, and the airflow inlet end 91b communicates with the suction port 30 through the suction channel 20; the airflow outlet end 91c communicates with an air inlet of the suction fan 70; and the liquid collection area 92 correspondingly fits with the liquid outlet end 91a to collect a liquid, which facilitates smooth circulation of airflow and does not affect the liquid convergence and collection effect.

Preferably, to ensure suction efficiency and improve the mounting effect with the water vapor separation apparatus, in this implementation, the suction fan 70 includes a suction motor 71, an impeller 72, an impeller cover 73 and a vortex fan housing 74 that are mounted and connected into a whole, and an inlet of the impeller cover 73 communicates with the airflow outlet end 91c of the water vapor separation apparatus 91; and the vortex fan housing 74 and the water vapor separation mounting housing 93 are mounted and connected into a whole. In another implementation, certainly, other well-known suction fan structures or fan housing structures in other shapes may also be used, which is not specially or uniquely limited in this embodiment.

Preferably, to improve water vapor separation efficiency, in this implementation, the water vapor separation portion 91 includes at least one flow separation unit mounted in the water vapor separation mounting housing 93 and/or at least one airflow centrifugation unit mounted in the water vapor separation mounting housing 93; the flow separation unit is in contact with liquid parts in airflow, so that the liquid parts are collected and then separated from the airflow; and the liquid is centrifugally separated from the airflow by a centrifugal rotation action of the airflow centrifugation unit on the airflow. Further, preferably, to achieve an excellent water vapor separation effect and facilitate structural compactness and mounting implementation, in this implementation, the flow separation unit includes flow separation portions that are in a flat plate shape and/or a multi-layer labyrinth shape and/or a bent shape and/or a cylindrical shape, or certainly, flow separation portions in other shapes (including a special shape) may be selected. There may be one or more flow separation units, which is not uniquely limited in this embodiment. The airflow centrifugation unit includes a curved centrifugal member and/or a centrifugal impeller and/or a centrifugal cone, or certainly, another structure with an airflow centrifugation effect may be selected as an airflow centrifugation unit. There may be one or more airflow centrifugation units, which is not uniquely limited in this embodiment. To improve the water vapor separation in a limited mounting space, the suction channel 20 connected to the airflow inlet end 91b uses a tangential air inlet 20a to implement primary centrifugal separation of the liquid in the airflow entering the water vapor separation area 9a, and liquid stains converge downward along an inner wall surface of the water vapor separation mounting housing 93 and are collected to the liquid collection area 92.

During practical application and implementation of the present application, structural solutions of the tangential air inlet 20a, the flow separation unit and the airflow centrifugation unit provided in the present application may be combined and applied respectively to obtain different water vapor separation portions 91 with reference to actual needs and common sense. These can all achieve higher water vapor separation efficiency.

Specifically, preferably, further referring to FIG. 3, in this implementation, the water vapor separation portion 91 includes a labyrinth separation plate 110 as a flow separation unit, and is in contact with liquid parts in airflow through the labyrinth separation plate 110. Specifically, preferably, in this implementation, the labyrinth separation plate 110 includes a plurality of separation plates arranged at intervals to increase a contact area with the liquid parts. During actual use, when traveling in the labyrinth separation plate 110, the airflow continuously impacts on a wall surface of the labyrinth separation plate 110, so as to converge into droplets on the labyrinth separation plate 110 and drop to the liquid collection area 92, which further improves the water vapor separation level and increases an effective water storage height of the liquid collection area 92.

Preferably, in this implementation, the housing 1 includes a manipulation housing 1a (also referred to as a machine body) mounted relatively swingably and a ground housing 1b placed on the ground, and specifically can be mounted and connected relatively swingably by using a joint head 1c. The water vapor separation apparatus 9 is mounted on the manipulation housing 1a, and during use, a user can operate the manipulation housing 1a to implement a convenient hand-held operation. Considering that the machine body is generally inclined when the user operates, a relative included angle between the central axis of the machine body and a horizontal plane is usually 30°-45°. If the airflow inlet end 91b and the airflow outlet end 91c of the water vapor separation apparatus 9 are both arranged at or near the central axis, the water level in the liquid collection area 92 may be close to the airflow outlet end 11b, so that the water is likely to be sucked away by the suction fan 70. Therefore, further, preferably, in this implementation, the airflow inlet end 91b of the water vapor separation apparatus 9 is close to the user's manipulation side, and the airflow outlet end 91c thereof is away from the user's manipulation side.

Embodiment 2: The solution of Embodiment 2 is the same as that of Embodiment 1 except that, referring to a water vapor separation apparatus 9′ shown in FIG. 17, FIG. 18 and FIG. 19, in Embodiment 2, a water vapor separation portion includes a flow separation unit and an airflow centrifugation unit that are mounted in a water vapor separation mounting housing 93′, and a suction channel 20′ connected to an airflow inlet end 91b uses a tangential air inlet 20a′ to implement primary centrifugal separation of a liquid in airflow entering a water vapor separation area 9a′. Specifically, preferably, in this implementation, a flow separation unit includes a cylindrical flow separation portion 120, and the airflow centrifugation unit includes a centrifugal impeller 130 (also referred to as a separation blade) mounted and connected to the flow separation portion and a centrifugal cone 140 (also referred to as a depression cone) mounted and located below the centrifugal impeller 130. The flow separation portion 120 is arranged corresponding to the tangential air inlet 20a′, an outlet of the centrifugal impeller 130 is used as an airflow outlet end 91c, and airflow passing through the flow separation portion 120 rises into the centrifugal impeller 130 and the centrifugal cone 140, so as to implement centrifugal rotation of the airflow again, and the airflow after water vapor separation enters the suction fan 70 from the airflow outlet end 91c. To further improve exhaust efficiency, in this implementation, the outlet of the centrifugal impeller 130 is in a conical shape, with a diameter close to the outside being greater than a diameter close to the inside.

To further improve the primary centrifugal separation effect of the tangential air inlet 20a′, in this implementation, a mounting height of a lower end of the flow separation portion 120 is less than a mounting height of the airflow inlet end 91b, to ensure that the tangential air inlet 20a′ can obtain a sufficient centrifugal path, improve primary separation efficiency, and avoid short circuit of centrifugal airflow caused by a flow channel change after the liquid level in the liquid collection area 92′ rises.

In Embodiment 2, a multi-stage water vapor separation effect of the airflow is achieved by the flow separation unit formed by the tangential air inlet 20a′ and the cylindrical flow separation portion 120, and the airflow centrifugation unit formed by the centrifugal impeller 130 and the centrifugal cone 140, thereby achieving excellent water vapor separation efficiency.

Embodiment 3: The solution of Embodiment 3 is the same as Embodiment 2 except that, referring to a water vapor separation apparatus 9″ shown in FIG. 20 and FIG. 21, in Embodiment 3, an airflow centrifugation unit includes a curved centrifugal member 150, an airflow inlet end 91b (non-tangential air inlet structure) is located below the curved centrifugal member 150, and the airflow inlet end 11c is located above the curved centrifugal member 150; an internal channel housing 131 (extending from a liquid collection area 92′ to a water vapor separation area 9a″) extends upward from a middle portion to an inner side of a water vapor separation mounting housing 93′ (its upper end may be provided with a rib sheet shape facilitating water vapor separation) to form a suction channel 20 (being a partial channel section of the suction channel) communicating with the airflow inlet end 91b, and the curved centrifugal member 150 is relatively rotatably mounted on the internal channel housing 131. Certainly, in another implementation, the curved centrifugal member may be mounted at an upper end of the water vapor separation mounting housing 93′. Specifically, a hemispheric or arc-shaped or other suitable curved surface structure may be used, provided that the curved centrifugal member has an effect of separating the lower part from the upper part to implement separation. Further, preferably, in this implementation, a periphery of the curved centrifugal member 150 is close to an inner wall of the water vapor separation mounting housing 93′, provided that a proper gap is ensured therebetween for upward reversed flow of the airflow. During actual operation, when entering the water vapor separation area 9a″ from the airflow inlet end 91b, the airflow undergoes a high-speed centrifugal separation process by using the curved centrifugal member 150, and then the airflow is separated from the curved centrifugal member 150 and then still rotates downward along the inner wall of the water vapor separation mounting housing 93′, and finally converges and is collected to the liquid collection area 92′, thus further implementing water vapor separation again. The water vapor separation efficiency can be greatly improved by the centrifugal separation for twice.

To further improve the water vapor separation effect, in this implementation, a centrifugal impeller 151 is integrally mounted and connected to a lower end of the curved centrifugal member 150. When the airflow enters the water vapor separation area 9a″ from the airflow inlet end 91b, a blade surface of the centrifugal impeller 151 is subjected to the pressure of the airflow, which may drive the curved centrifugal member 150 to rotate synchronously and automatically, thus accelerating the centrifugal effect and improving the water vapor separation effect. In another implementation, the centrifugal impeller (blade) or a centrifugal cone may be directly used as an airflow centrifugation unit. These are conventional technical choices that can be made by a person skilled in the art based on the content of the present application.

Embodiment 4: The solution of Embodiment 4 is the same as that of Embodiment 3 except that referring to FIG. 22, in Embodiment 4, an airflow centrifugation unit includes a curved centrifugal member 160 and a centrifugal impeller 170 that are detachably mounted and connected to each other, where the centrifugal impeller 170 is mounted and located below the curved centrifugal member 160 and above an airflow inlet end 91b, and an airflow inlet end 11c is located above the curved centrifugal member 160. Specifically, preferably, to facilitate mounting, in this implementation, an internal channel housing 131″ (extending from a liquid collection area 92″ to a water vapor separation area 9a″) extends upward from a middle portion to an inner side of a water vapor separation mounting housing 93′ to form a suction channel 20 (being a partial channel section of the suction channel) communicating with the airflow inlet end 91b. Specifically, preferably, an opening portion of the internal channel housing 131′ close to the airflow inlet end 91b is in the shape of a flared horn, which is beneficial to improving the air inlet efficiency. The curved centrifugal member 160 is fixedly mounted at the upper end of the water vapor separation mounting housing 93′, and the centrifugal impeller 170 is relatively rotatably mounted below the curved centrifugal member 160. When the airflow enters the water vapor separation area 9a″ from the airflow inlet end 91b, a blade surface of the centrifugal impeller 170 is subjected to the pressure of the airflow, so that the blade may rotate automatically, thus accelerating the centrifugal effect and improving the water vapor separation effect.

In Embodiments 1-4, the water vapor separation mounting housing with the water vapor separation area and the liquid collection area is used as the water vapor separation apparatus, where the water vapor separation area includes the water vapor separation portion provided with the airflow inlet end, the airflow outlet end and the liquid outlet end. During actual use, after entering the water vapor separation area through the airflow inlet end to implement water vapor separation by using the water vapor separation portion, the airflow directly enters the air inlet of the suction fan through the airflow outlet end, and the liquid thereof converges to the liquid collection area through the liquid outlet end. This can effectively avoid or greatly reduce the liquid part content of the airflow entering the suction fan and ensure the service life of the suction fan, and does not have a negative impact on heat dissipation performance of the suction fan. In addition, the water vapor separation mounting housing and the suction fan according to Embodiments 1-4 are directly mounted and connected into a whole, which facilitates rapid completion of overall mounting and reduces assembly costs. Embodiments 1-4 are suitable for application in various suction cleaning devices that need water vapor separation. It will be clear to a person skilled in the art that the present invention is not limited to the details of the foregoing example embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded in all respects as examples rather than as restrictions, and the scope of the present invention is defined by the appended claims rather than the foregoing descriptions. Therefore, all changes falling within the meanings and scope of equivalent elements of the claims are included in the present invention. Any reference numeral in the claims shall not be construed as limiting the claims.

In addition, it should be understood that although this specification is described in terms of implementations, not each implementation includes only one independent technical solution. This description manner in the specification is only for clarity. A person skilled in the art should take the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other implementations that can be understood by a person skilled in the art.