Water tank for cleaning equipment and cleaning equipment thereof

The present disclosure relates to a wastewater tank structure and cleaning equipment. The wastewater tank structure includes a tank body and a tank cover assembly. The tank body has an accommodation cavity therein, and an end of the tank body is formed with an opening in communication with the accommodation cavity. The tank cover assembly includes a cover body and at least one flow divider, and the cover body is disposed at an end of the tank body proximate to the opening. The flow divider is in communication with the cover body and the accommodation cavity. The flow divider is configured to divide a fluid stream flowing therethrough into a plurality of fluid streams formed into pairs having paired kinetic energies carried thereby and paired opposing flow directions, such that the kinetic energies of the pairs of fluid streams cancel out.

TECHNICAL FIELD

The present disclosure relates to the technical field of cleaning apparatuses and in particular to a water tank structure for cleaning equipment and to cleaning equipment.

BACKGROUND

As one of the important parts of a wet vacuum cleaner, a wastewater tank is mainly used to collect the sucked-up wastewater and garbage. A suction port of the existing wastewater tank is usually opened at a bottom of the wastewater tank and is arranged to define a columnar structure protruding into the wastewater tank. As a result of the above design, airflow in the wastewater tank easily agitates the wastewater, causing the wastewater in the wastewater tank to be sucked into the motor. Due to the above, not only will the motor be damaged, but wastewater will also be blown to the outside of the wet vacuum cleaner.

SUMMARY

An objective of embodiments of the present disclosure is to solve the following technical problem in which wastewater in the wastewater tank is sucked into the motor and to provide a water tank structure for cleaning equipment and cleaning equipment.

In order to solve the aforementioned technical problems, an embodiment of the present disclosure provides a water tank structure using the following technical solution.

The wastewater tank structure for cleaning equipment, comprises:

a wastewater tank with an inner surface having a shape selected from an arc-shape or a ring-shape; and

a first flow channel and a second flow channel, provided with the wastewater tank, both connecting through an inside portion and an outside portion of the wastewater tank, wherein:

the first flow channel divides a fluid stream flowing to the wastewater tank into multiple fluid streams to make the multiple fluid streams collide in the wastewater tank, and

the second flow channel discharges air in the wastewater tank.

As a further improvement to the aforementioned technical solution, the multiple fluid streams collide in the wastewater tank along the inner surface of the wastewater tank, resulting in materials and liquids of the multiple fluid streams falling to a bottom of the wastewater tank due to at least one collision among the multiple fluid streams.

As a further improvement to the aforementioned technical solution, the first flow channel defines at least two dividing outlets distributed at intervals symmetrically.

As a further improvement to the aforementioned technical solution, the wastewater tank comprises a tank body and a tank cover,

the tank body defines an accommodation cavity and a first opening at one terminal of the tank body connecting with the accommodation cavity,

the tank cover is disposed at another terminal of the tank body close to the first opening, and

the first flow channel and the second flow channel are provided on an end portion of the tank body close to the first opening or on the tank cover.

As a further improvement to the aforementioned technical solution, a second opening and a third opening are disposed on the tank cover,

a dividing portion protruding toward an inside of the accommodation cavity and an air exhausting portion are disposed on the tank cover,

the first flow channel is disposed on the dividing portion and connects to the second opening, and

the second flow channel is disposed on the air exhausting portion and connects to the third opening.

In order to solve the aforementioned technical problems, an embodiment of the present disclosure further provides a machine body and one of the aforementioned wastewater tank structures disposed on the machine body.

As a further improvement to the aforementioned technical solution, the cleaning equipment further comprises a suction producing device disposed on the machine body, a floor brush, a floor brush cover, and a connecting pipe,

a first terminal and a second terminal are defined at the connecting pipe,

the first terminal connects to the floor brush,

the second terminal connects to an inlet of the first flow channel,

a suction opening of the suction producing device connects through an outlet of the second flow channel,

the floor brush cover covers the floor brush and is detachable from the machine body,

the floor brush comprises a brush unit, and

at least a part of the brush unit attaches to an inner wall of the floor brush cover.

As a further improvement to the aforementioned technical solution, the cleaning equipment further comprises a suction producing device,

an air outlet, connecting through a suction opening of the suction producing device, is disposed on the machine body,

the air outlet is disposed at a contacting surface between the machine body and the wastewater tank and is located at one side of the machine body away from the suction opening of the suction producing device, and

the air outlet discharges the air sucked into the suction producing device.

As a further improvement to the aforementioned technical solution, the air sucked into the suction producing device is discharged from the air outlet toward to a base of the cleaning equipment.

As a further improvement to the aforementioned technical solution, the air exhausting portion and the dividing portion are distributed at two side of an axis of the tank body, and the inlet of the second flow channel is opened at a wall of the air exhausting portion away from the dividing portion and towards a direction different from a direction of the at least two dividing outlets of the first flow channel.

As a further improvement to the aforementioned technical solution, the suction producing device comprises a divider to divide the air sucked into the suction producing device into a first air stream and a second air stream,

the air outlet comprises a first air outlet and a second air outlet,

the first air outlet and the second air outlet are disposed symmetrically and both connect to an outside of the machine body, and

the first air outlet discharges the first air stream and the second air outlet discharges the second air stream.

During the process of operating the wastewater tank structure for cleaning equipment and the cleaning equipment above, the first flow channel of the wastewater tank divides a fluid stream flowing to the wastewater tank into multiple fluid streams to make air in the multiple fluid streams move along with the arc-shaped or ring-shaped inner surface of the wastewater tank and collide in the wastewater tank. It is worth noting that in one embodiment, effective air collisions are achieved among the multiple fluid streams using the arc-shaped or ring-shaped inner surface of the wastewater tank. This is because, by making air move along with the arc-shaped or ring-shaped inner surface of the wastewater tank, the air is forced to collide and then be cancelled out during the process of air movement from reverse/relative directions.

When the inner surface of the wastewater tank is not shaped as an arc or a ring, the precipitation of garbage in the wastewater tank cannot be achieved. This is because the directions and angles of the air flow in the wastewater tank will both be chaotic due to above shape issue, which inhibits forces of air flow from being cancelled out accordingly if the inner surface of the wastewater tank is not shaped as an arc or a ring. This causes the precipitation and separation of garbage and sewage in the multiple fluid streams to not be realized.

After the fluid stream with air, sewage, and garbage is divided into multiple fluid streams though the first flow channel, due to the weight differences between the air-incorporated sewage and garbage in each fluid stream, the air-incorporated sewage and garbage are moved along/downward with the arc-shaped or ring-shaped inner surface of the wastewater tank and separated from each other while flowing down into the wastewater tank.

During the separation process, each of the fluid streams with air collide in the wastewater tank, and air-incorporated fluids with the same quantity of kinetic energy but reverse directions appear under the maximum possibility accordingly during the movement of the air-incorporated fluids along with the inner surface of the wastewater tank when the inner surface of the wastewater tank is shaped as the arc or the ring. Each of air-incorporated fluids moves along with the arc-shaped or ring-shaped inner surface of the wastewater tank. Therefore, fluid streams with air collide and then the quantity of kinetic energy of the fluid streams is reduced, cancelled out, or at least cancelled out in part since the flowing directions of the fluid streams are opposite relative to each other, so as to make the sewage and garbage flow down into the wastewater tank smoothly. The separated air collides with other air-incorporated fluids having a moving direction in reverse of the separated air during the movement of the air-incorporated fluids along the inner surface of the wastewater tank so as to increase the chance of separation between sewage and garbage to reduce the quantity of kinetic energy of the separated air accordingly, which makes the suction producing device more easily suck the separated air away through the second flow channel to prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage.

The above implementation effectively prevents the sewage and garbage in the wastewater tank from being sucked into the suction producing device as well. Thereby, the above implementation not only prevents relating damage to the suction producing device, but also prevent the sewage and garbage from being blown to the outside of the cleaning equipment so as to improve the space utilization ratio of the wastewater tank.

In addition, the above implementation makes fluid streams be divided into different air-incorporated fluid streams at the air outlet by the dividing structure in the suction producing device to prevent air-incorporated fluid streams concentrate in a specific area of the suction producing device, which reduces air flowing noises at the air outlet.

Therefore, compared with the conventional operation mode that emphasizes improving the flow energy of rotating air, the embodiments of the present disclosure reduce the kinetic energy of the disturbed fluid stream in the wastewater tank, so that the sewage and garbage in the wastewater tank are not easily sucked into the motor, thereby reducing the probability of motor damage.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Unless defined otherwise, all of the technical and scientific terms used herein have the same meanings as those usually understood by those of ordinary skill in the art in the technical field of the present disclosure. The terms used in the specification herein are merely intended to describe specific embodiments and are not intended to limit the present disclosure. For example, directions or positions indicated by terms such as “length,” “width,” “up,” “down,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “in”, and “out” are directions and positions shown on the basis of the drawing. These terms are merely for ease of description and cannot be construed as a limitation to the technical solution.

Terms “include” and “have” and any variations thereof in the description, claims, and the brief description of the drawings of the present disclosure are intended to cover non-exclusive inclusion. Terms such as “first” and “second” in the description and claims or the brief description of the drawings of the present disclosure are used to distinguish between different objects and are not used to describe a specific sequence. In the description, claims, and the brief description of the drawings of the present disclosure, when an element is described as being “fixed on” or “mounted on” or “disposed on” or “connected to” another element, the element can be directly or indirectly located on the other element. For example, when an element is described as being “connected to” another element, the element can be directly or indirectly connected to the other element.

In addition, when an “embodiment” is referred to herein, it means that specific features, structures, or characteristics described with reference to the embodiment can be included in at least one embodiment of the present disclosure. When used in different locations in the description, this term does not necessarily refer to the same embodiment and does not refer to an independent or alternative embodiment mutually exclusive to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

As shown inFIG. 1toFIG. 9, one embodiment of the present application discloses a wastewater tank structure100for cleaning equipment. As shown inFIG. 1andFIG. 2, the wastewater tank structure100includes a wastewater tank110, and a first flow channel110aand a second flow channel110bare provided with the wastewater tank110. The first flow channel110aand the second flow channel110bare both connected through the inside and outside portions of the wastewater tank110. The first flow channel110ais used to divide a fluid stream flowing to the wastewater tank110into multiple fluid streams, so as to make the multiple fluid stream collide in the wastewater tank110. The second flow channel110bis used to discharge air that is in the wastewater tank110out of the wastewater tank110. The inner surface of the wastewater tank110is shaped as a smooth circle shape or ring. An inner surface having a shape of an arc shape or a ring is provided with the wastewater tank. The first flow channel110ais used to divide a fluid stream flowing to the wastewater tank110into multiple fluid streams, so as to make the multiple fluid streams collide in the wastewater tank110. The first flow channel110amakes air in the multiple fluid streams move along with the arc-shaped or ring-shaped inner surface of the wastewater tank110and the multiple fluid streams collide in the wastewater tank110. It is worth noting that in one embodiment, effective air collisions are achieved among the multiple fluid streams, using the arc-shaped or ring-shaped inner surface of the wastewater tank110. This is because, by making air move along with the arc-shaped or ring-shaped inner surface of the wastewater tank110, the air is forced to collide and then be cancelled out during the process of air movement from reverse/relative directions. Due to the above, sewage in the wastewater tank110gradually settles down and falls into the bottom of the wastewater tank110. After the air is separated from the sewage, the air is sucked out of the wastewater tank110by a suction producing device300, and the second flow channel110bis used to discharge the air in the wastewater tank110.

It should be note that the precipitation of garbage in the wastewater tank110cannot be achieved when the inner surface of the wastewater tank110is not shaped as an arc or a ring. This is because the directions and angles of the air flow in the wastewater tank110will both be chaotic due to above shape issue, which inhibits forces of the air flow from being cancelled out accordingly if the inner surface of the wastewater tank110is not shaped as an arc or a ring. This causes the precipitation and separation of garbage and sewage in the multiple fluid streams to not be realized since most of the sewage will be sucked out with the air before the sewage settles down and falls into the bottom of the wastewater tank110.

It should be noted that both the first flow channel110aand the second flow channel110bof the wastewater tank110have an inlet and an outlet, respectively. The wastewater tank structure100is able to be disposed on a machine body200of cleaning equipment (for example, a wet vacuum cleaner). As an example, as shown inFIGS. 3 to 5, the cleaning equipment includes the machine body200, a suction producing device300disposed on the machine body200, a floor brush400, and a connecting pipe500. The connecting pipe500has a first terminal and second terminal oppositely configured with each other. The first terminal is connected to the floor brush400, and the second terminal is connected to the inlet of the first flow channel110aof the wastewater tank110of the wastewater tank structure100. A suction opening of the suction producing device300is connected to the outlet of the second flow channel110bof the wastewater tank110.

It should be noted that the arrows inFIG. 4, except for marking labels, are used to indicate a flow direction of fluid. The dashed arrows inFIG. 5are used to indicate the flow direction of sewage (i.e., wastewater) and garbage mixed with air. The solid arrow, except for marking labels, is used to indicate the flow direction of the air.

When the cleaning equipment is used to clean a ground surface, the suction producing device300works to generate vacuum suction to suck the wastewater and garbage on the ground into the inlet of the first flow channel110aof the wastewater tank structure100through the connecting pipe500. The air-incorporated sewage and garbage flows into the wastewater tank110through the first flow channel110aafter being divided into multiple fluid streams. While each fluid stream of air-incorporated sewage and garbage flows down into the wastewater tank110, due to weight differences between the incorporated air and the sewage and garbage, the incorporated air and the sewage and garbage are separated. Furthermore, during the above separation process, each fluid stream of air-incorporated sewage and garbage collides with each other so as to make the kinetic energy of each fluid stream of air-incorporated sewage and garbage respectively smaller, cancelled out, or at least cancelled out in part due to the above collisions.

Thereby, the air-incorporated sewage and garbage flows into the wastewater tank110more smoothly and fluently and the separated air in one fluid stream collides with the air in other fluid streams in the wastewater tank structure100so as to reduce its own kinetic energy, enabling the suction producing device300to more easily suck the separated air away through the second flow channel100bto prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage, which can effectively prevent the sewage and garbage in the wastewater tank110from being sucked into the suction producing device300. The above implementation of the present embodiment not only prevents related damage to the suction producing device300, but also prevents the sewage and garbage from being blown to the outside of the cleaning equipment so as to improve the space utilization ratio of the wastewater tank110.

The wastewater tank structure100described above is able to be applied to cleaning equipment. The first flow channel110aof the wastewater tank110divides the fluid stream flowing into the wastewater tank110into multiple fluid streams and makes the air in the multiple fluid streams collide with each other in the wastewater tank110. After the air-incorporated sewage and garbage is divided into multiple fluid steams through the first flow channel110a, each fluid stream of air-incorporated sewage and garbage undergoes an air-liquid separation process during the downward flow into the wastewater tank110. During the air-liquid separation process, every fluid stream of the air-incorporated sewage and garbage collides with each other in the wastewater tank110, so that the kinetic energy of each fluid stream of the air-incorporated sewage and garbage is reduced, cancelled out, or at least cancelled out in part due to the above collisions. Therefore, the sewage and garbage is able to flow into the wastewater tank110more smoothly and fluently.

The separated air collides with the air of other fluid streams in the wastewater tank structure100, thus reducing its own kinetic energy, enabling the suction producing device300to more easily suck the separated air away through the second flow channel110bto prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage, which can effectively prevent the sewage and garbage in the wastewater tank110from being sucked into the suction producing device300. The above implementation not only prevents damage to the suction producing device300, but also prevents the sewage and garbage from being blown to the outside of the cleaning equipment.

Compared with conventional designs, in general, which emphasize power by increasing the flow energy of rotating air, the present embodiment reduces the kinetic energy of the disturbed fluid stream in the wastewater tank structure100, so that the sewage and garbage in the wastewater tank structure100are not easily sucked into the suction producing device300, thereby reducing the probability of damage to the suction producing device300.

It should be noted more in detail that after the fluid stream with air, sewage, and garbage is divided into multiple fluid streams though the first flow channel110a, the air-incorporated air sewage and garbage are moved along/downward with the arc-shaped or ring-shaped inner surface of the wastewater tank110and separated from each other while flowing down into the wastewater tank110because of collisions between the multiple fluid streams.

During the separation process, each of the fluid streams with air collide in the wastewater tank110. Only when the inner surface of the wastewater tank110is shaped as the arc or the ring will air-incorporated fluids with the same quantity of kinetic energy but reverse directions appear under the maximum possibility accordingly in the movement of the air-incorporated fluids along with the inner surface of the wastewater tank110.

Each of the air-incorporated fluids moves along with the arc-shaped or ring-shaped inner surface of the wastewater tank110. Therefore, fluid streams with air collide and then the quantity of kinetic energy of the fluid streams is reduced, cancelled out, or at least cancelled out in part since the flowing directions of the fluid streams are opposite relative to each other, so as to make the sewage and garbage flow down into the wastewater tank110smoothly.

The air-incorporated sewage and garbage collides with other fluid streams having a moving direction in reverse of the air-incorporated sewage and garbage during the movement of the air-incorporated fluids along the inner surface of the wastewater tank110so as to increase the chance of separation between sewage and garbage to reduce the quantity of kinetic energy of the separated air accordingly, which makes the suction producing device300more easily suck the separated air away through the second flow channel110bto prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage.

The above implementation effectively prevents the sewage and garbage in the wastewater tank110from being sucked into the suction producing device300as well. Thereby, the above implementation not only prevents relating damage to the suction producing device300, but also prevent the sewage and garbage from being blown to the outside of the cleaning equipment so as to improve the space utilization ratio of the wastewater tank110.

In some embodiments of the present disclosure, as shown inFIG. 2, the first flow channel110ahas at least two dividing outlets110cdistributed at intervals. In this way, sewage and garbage are able to be effectively divided. Regarding the number of dividing outlets110cdisclosed, the embodiment of the present disclosure does not impose specific restrictions. The number can be an even number, such as 2, 4, or 6, as shown inFIG. 2, and of course, can also be an odd number, such as 3, 5, 7, etc.

Certainly, in some other embodiments of the present disclosure, the number of the dividing outlets110cof the first flow channel110acan also be one, and the direction of the dividing outlets110cis distributed around itself. This situation can be regarded as the first flow channel110abeing provided with a plurality of dividing outlets110calong its own circumferential direction, and two adjacent dividing outlets110care next to each other.

In some embodiments of the present disclosure, as shown inFIGS. 1 and 2, the wastewater tank110includes a tank body111and a tank cover112. The tank body111has an accommodation cavity, and one terminal of the tank body111has a first opening connecting with the accommodation cavity. The tank cover112is disposed on the terminal of the tank body111close to the first opening. The first flow channel110aand the second flow channel110bare opened on an end portion of the tank body111close to the first opening or on the tank cover112. The tank cover112is detachably disposed relative to the tank body111so that the tank body111is able to be cleaned after being detached from the tank cover112.

In some embodiments, as shown inFIG. 2, the dividing outlets110cof the first flow channel110aare distributed towards a side wall of the tank body111. This configuration inhibits the air-incorporated sewage and garbage from flowing straight to a bottom of the accommodation cavity of the tank body111after the air-incorporated sewage and garbage flows out from the dividing outlets110cof the first flow channel110a, which avoids surging of liquid level in the tank body111and effectively prevents sewage and garbage from being blown away by the air and carried into the suction producing device300or brought to the outside environment. Moreover, this configuration also causes the air-incorporated sewage and garbage to hit the side wall of the tank body111after the air-incorporated sewage and garbage flows out from the dividing outlets110cof the first flow channel110a, which not only improves the separation effect between air and sewage and garbage, but also makes the separated air hit the side wall of the tank body111and turn again to produce an opposing cyclone air stream so as to effectively suppress the kinetic energy of the air in the tank body111.

In some embodiments, as shown inFIG. 1, the inlet of the second flow channel110bis distributed towards the side wall of the tank body111. Therefore, this configuration prevents a surge of sewage and garbage in the tank body111from entering into the inlet of the second flow channel110band prevents the sewage and garbage from being blown to the outside of the cleaning equipment so as to improve the space utilization ratio of the wastewater tank110.

Under the condition that the wastewater tank110includes the tank body111and the tank cover112, as shown in theFIG. 1andFIG. 2, in one embodiment of the present disclosure, a first distance between the inlet of the second flow channel110band the bottom of the accommodation cavity is longer than a second distance between the dividing outlets110cof the first flow channel110aand the bottom of the accommodation cavity. As the cleaning equipment is in the process of cleaning the ground, sewage and garbage will be stored in the accommodation cavity of the tank body111, and the movement of the cleaning equipment will cause a surge of the sewage stored in the tank body111. By increasing the first distance between the inlet of the second flow channel110band the bottom of the accommodation cavity, the effect of inhibiting surges from entering the inlet of the second flow channel100bis better and thereby the space utilization ratio of the wastewater tank110is improved.

Specifically, in one embodiment of the present disclosure, as shown inFIG. 1andFIG. 2, a side wall of the tank cover112close to the bottom of the accommodation cavity is an inclined plane with a high portion and a low portion. The second flow channel110bis disposed at the high portion of the inclined plane, and the first flow channel110ais disposed at the low portion of the inclined plane. By setting the second flow channel110bto be disposed at the high portion of the inclined plane, the inlet of the second flow channel100bis as far away as possible from the bottom of the tank body111in a limited space arrangement.

Under the condition that the wastewater tank110includes the tank body111and the tank cover112, as shown in theFIG. 1andFIG. 2, in one embodiment of the present disclosure, the inlet of the second flow channel110band the dividing outlets110cof the first flow channel110aare staggered. Therefore, the above arrangement avoids the fluid streams flowing out of the dividing outlets110cof the first flow channel110afrom directly flowing out from the inlet of the second flow channel110b.

Specifically, in one embodiment of the present disclosure, as shown inFIG. 2, the tank cover112defines a second opening112aand a third opening112b. A dividing portion113protruding toward the inside of the accommodation cavity and an exhausting portion114are both disposed on the tank cover112. The first flow channel110ais opened at the dividing portion113and connected with the second opening112a, and the second flow channel110bis opened at the exhausting portion114and connected with the third opening112b. Thereby, the first flow channel110aand the second flow channel110bare directly disposed on the tank cover112without enlarging the thickness of the tank cover112. Understandably, the inlet of the first flow channel110ais connected with the second opening112aof the tank cover112and the outlet of the first flow channel110ais connected with the inside of the accommodation cavity of the tank body111. Furthermore, the inlet of the second flow channel110bis connected with an inner chamber of the tank body111, and the outlet of the second flow channel110bis connected with the third opening112bof the tank cover112.

In some embodiments, as shown inFIG. 1andFIG. 2, the inner wall of the tank body111is smooth and flat. There is no additional structure disposed inside of the tank body111. Therefore, compared with the columnar structure protruding into the wastewater tank in conventional designs, the amount of sewage and garbage that can be contained in the wastewater tank110, in one embodiment of the present disclosure, is able to be increased to prevent users from frequently emptying the wastewater tank110during use, which makes the wastewater tank110easy to use and shortens the cleaning process time.

In some embodiments, the dividing portion113and the exhausting portion114are able to be connected to the tank cover112in an integrated manner.

In some embodiments, the exhausting portion114and the dividing portion113are distributed at two different sides of an axis of the tank body111, and the inlet of the second flow channel110bis opened at a wall of the exhausting portion114away from the dividing portion113and towards a direction different from the direction of the dividing outlets110cof the first flow channel110a. With the above arrangement, the length of the flowing path of the air separated from the sewage and garbage in the tank body111is increased so as to extend the collision period between the air and air in other fluid streams, which is able to effectively suppress the kinetic energy of the air.

Specifically, in one embodiment of the present disclosure, as shown inFIG. 1, the dividing portion113comprises a baffle1131disposed at the bottom of the second opening112a. The first flow channel110ais defined between the baffle1131and the second opening112a, and at least one terminal of the baffle1131is connected with the tank cover112or the exhausting portion114. Garbage mixed with sewage hits the baffle1131of the dividing portion113through the second opening112aof the tank cover112to offset part of the kinetic energy of the garbage mixed with sewage. After that, the garbage and sewage with reduced kinetic energy flow towards different terminals of the baffle1131under the operation of the suction producing device300so as to realize dividing of fluid streams. In addition, the baffle1131can also block the sewage and garbage in the wastewater tank110from flowing out from the first flow channel110ato the outside of the wastewater tank110.

In some embodiments, the baffle1131has a “L” shape, and a vertical section of the baffle1131is connected with the tank cover112. In one embodiment of the present disclosure, the baffle1131has an “l” shape, and one end of the baffle1131is connected to the exhausting portion114.

In some embodiments, as shown inFIG. 1, one terminal of the baffle1131extends in a direction away from the second flow channel110b. One terminal of the baffle1131bends and protrudes towards the second opening112a, and the dividing outlets110cof the first flow channel110aare opened at one end of the dividing portion113extending along the baffle from one end (terminal) of the baffle1131to another end of the baffle1131. Therefore, after the suction producing device300stops working, the residual sewage and garbage sucked into the first flow channel110acan flow diagonally downward by virtue of its own gravity through the dividing portion113of the above type of structure. In addition, the dividing portion113includes an install plate1132, and the install plate1132is connected between the baffle1131and the tank cover112. Certainly, in another embodiment of the present disclosure, one end of the baffle1131is able to be extended to fit the side wall of the tank body111.

Specifically, in some embodiments of the present disclosure, the exhausting portion114is configured as a shell structure, and an internal chamber of the exhausting portion114constructs the second flow channel110band covers the third opening112b. The exhausting portion114of this type of structure is easy to manufacture and also easy to install at the third opening112bof the tank cover112.

In one embodiment of the present disclosure, as shown inFIG. 2, the wastewater tank structure100includes a filter assembly120disposed on the wastewater tank110for filtering air exhausted from the outlet of the second flow channel110b. The air separated from sewage and garbage is discharged through the second flow channel110band then filtered through the filter assembly120again. With the above arrangement, wastewater tank structure100is able to purify the air and further effectively avoid the sewage or garbage contained in the air from being carried out through the air. Therefore, the aforementioned structure prevents the exhausted air from blocking the suction producing device300due to the carried impurities with the air and avoids damage to the suction producing device300thereby.

Additionally, in one embodiment of the present disclosure, an outflow chamber corresponding to the outlet of the second flow channel110bis defined on the wastewater tank110. As shown inFIG. 1, the filter assembly120comprises a stand121and a filter122. The stand121is disposed on the wastewater tank110and defines a hollow portion corresponding to the outflow chamber. The stand121with the hollow portion is able to steadily carry the filter122and prevents the filter122from detaching from the stand121. Additionally, it is convenient for the air flowing out of the second flow channel110bto pass through the hollow portion of the stand121and be further filtered by the filter122before being discharged to the external environment.

In some embodiments, the filter122can be a filter sponge, which has the advantages of good elasticity, high filtration efficiency, low air resistance, repeated washing with water, and low cost and is able to effectively filter air. Moreover, in one embodiment of the present disclosure, the shape of the filter122is regular and an outer wall of the filter122is smooth and round, which facilitates the cleaning of the filter122and the tank cover112. For example, the shape of the filter122is a semicircular shape, and correspondingly, the hollow portion of the stand121is also a semicircular shape.

In one embodiment of the present disclosure, as shown inFIG. 1andFIG. 2, an outer wall of the wastewater tank110defines a container110dfor containing the connecting pipe500of the cleaning equipment. The container110denables the connecting pipe500to fit the tank body111and extends into the top of the tank body111, which can improve the compactness of the entire cleaning equipment.

The wastewater tank structure100for cleaning equipment is provided in some embodiments of the present disclosure. As shown inFIG. 1andFIG. 2, the wastewater tank structure100includes the tank body111and the tank cover112. The tank body111defines an opening connecting with the accommodation cavity of the tank body111at one terminal of the tank body111, and the tank cover112is disposed at one terminal of the tank body111close to the opening. The first flow channel110ais defined on a top portion of the tank cover112or at one terminal of the tank body111close to the tank cover112, dividing a fluid stream flowing into the tank body111into multiple fluid streams that collide with each other in the tank body111.

The wastewater tank structure100described above is able to be applied to cleaning equipment. The first flow channel110aof the wastewater tank110divides the fluid stream flowing into the wastewater tank110into multiple fluid steams and makes the air in the multiple fluid streams collide with each other in the wastewater tank110. After the air-incorporated sewage and garbage is divided into multiple fluid steams through the first flow channel110a, each fluid stream of the air-incorporated sewage and garbage undergoes an air-liquid separation process during the downward flow into the wastewater tank110. During the air-liquid separation process, every fluid stream of the air-incorporated sewage and garbage collides with each other in the wastewater tank110, so that the kinetic energy of each fluid stream of the air-incorporated sewage and garbage is reduced, cancelled out, or at least cancelled out in part due to the above collisions. Therefore, the sewage and garbage is able to flow into the wastewater tank110more smoothly and fluently. The separated air collides with the air of other fluid streams in the wastewater tank structure100, thus reducing its own kinetic energy, enabling the suction producing device300to more easily suck the separated air away through the second flow channel110bto prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage, which can effectively prevent the sewage and garbage in the wastewater tank110from being sucked into the suction producing device300. The above implementation not only prevents damage to the suction producing device300, but also prevents the sewage and garbage from being blown to the outside of the cleaning equipment. Compared with conventional designs, in general, which emphasize power by increasing the flow energy of rotating air, the present embodiment reduces the kinetic energy of the disturbed fluid stream in the wastewater tank structure100, so that the sewage and garbage in the wastewater tank structure100are not easily sucked into the suction producing device300, thereby reducing the probability of damage to the suction producing device300.

It should be noted more in is that after the fluid stream with air, sewage and garbage is divided into multiple fluid streams though the first flow channel100a, the air-incorporated air sewage and garbage are moved along/downward with the arc-shaped or ring-shaped inner surface of the wastewater tank110and separated from each other while flowing down into the wastewater tank110because of collisions between the multiple fluid streams.

During the separation process, each of the fluid streams with air collide in the wastewater tank110. Only when the inner surface of the wastewater tank110is shaped as the arc or the ring will air-incorporated fluids with the same quantity of kinetic energy but reverse directions appear under the maximum possibility accordingly in the movement of the air-incorporated fluids along with the inner surface of the wastewater tank110.

Each of air-incorporated fluids moves along with the arc-shaped or ring-shaped inner surface of the wastewater tank110. Therefore, fluid streams with air collide and then the quantity of kinetic energy of the fluid streams is reduced, cancelled out, or at least cancelled out in part since the flowing directions of the fluid streams are opposite relative to each other, so as to make the sewage and garbage flow down into the wastewater tank110smoothly.

The air-incorporated sewage and garbage collides with other fluid streams having a moving direction in reverse of the air-incorporated sewage and garbage during the movement of the air-incorporated fluids along the inner surface of the wastewater tank110so as to increase the chance of separation between sewage and garbage to reduce the quantity of kinetic energy of the separated air accordingly, which makes the suction producing device300more easily suck the separated air away through the second flow channel110bto prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage.

The above implementation effectively prevents the sewage and garbage in the wastewater tank110from being sucked into the suction producing device300as well. Thereby, the above implementation not only prevents relating damage to the suction producing device300, but also prevent the sewage and garbage from being blown to the outside of the cleaning equipment so as to improve the space utilization ratio of the wastewater tank110.

Another embodiment of the present disclosure provides cleaning equipment. The cleaning equipment includes the machine body200and the wastewater tank structure100of the above-described embodiments disposed on the machine body200. As an example, the cleaning equipment can be a wet vacuum cleaner.

As an example, the wastewater tank structure100and the machine body200are connected by an engagement structure. As shown inFIG. 2, the engagement structure includes a snap jointer130(i.e., a fastener), a spring140, and a snap slot (not shown). The snap jointer130is connected with the tank cover112of the wastewater tank structure100by the spring140, and the snap slot is disposed in a portion of the machine body200corresponding to the snap jointer130. The combination between the snap jointer130and the snap slot realizes the characteristics of stable connection and easy disassembly. Therefore, the wastewater tank structure100and the machine body200are detachable. When the wastewater tank structure100needs to be cleaned, the wastewater tank structure100can be removed from the machine body200for cleaning, which realizes the characteristics of easy disassembly and easy installation. In some embodiments, a handle150is provided on an outer wall of the tank body111, and the handle150is convenient to push and pull the wastewater tank structure100and facilitates the disassembly and assembly of the wastewater tank structure100.

The wastewater tank structure100described above is able to be applied to cleaning equipment. The first flow channel110aof the wastewater tank110divides the fluid stream flowing into the wastewater tank110into multiple fluid streams and makes the air in the multiple fluid streams collide with each other in the wastewater tank110. After the air-incorporated sewage and garbage is divided into multiple fluid steams through the first flow channel110a, each fluid stream of the air-incorporated sewage and garbage undergoes an air-liquid separation process during the downward flow into the wastewater tank110. During the air-liquid separation process, every fluid stream of the air-incorporated sewage and garbage collides with each other in the wastewater tank110, so that the kinetic energy of each fluid stream of the air-incorporated sewage and garbage is reduced, cancelled out, or at least cancelled out in part due to the above collisions. Therefore, the sewage and garbage is able to flow into the wastewater tank110more smoothly and fluently. The separated air collides with the air of other fluid streams in the wastewater tank structure100, thus reducing its own kinetic energy, enabling the suction producing device300to more easily suck the separated air away through the second flow channel110bto prevent the separated air from continuing to fall down and mix with sewage and garbage to agitate the sewage and garbage, which can effectively prevent the sewage and garbage in the wastewater tank110from being sucked into the suction producing device300.

The above implementation not only prevents damage to the suction producing device300, but also prevents the sewage and garbage from being blown to the outside of the cleaning equipment. Compared with conventional designs, in general, which emphasize power by increasing the flow energy of rotating air, the present embodiment reduces the kinetic energy of the disturbed fluid stream in the wastewater tank structure100, so that the sewage and garbage in the wastewater tank structure100are not easily sucked into the suction producing device300, thereby reducing the probability of damage to the suction producing device300.

As shown inFIG. 6toFIG. 9, in one embodiment of the present disclosure, the cleaning equipment further includes a floor brush400disposed on the machine body200and a floor brush cover420detachably connected to the floor brush400. The floor brush400includes brush unit410and, selectively, a flexible unit430. The materials of brush unit410include one or more combinations selected from synthetic fibers or natural fibers. The materials of flexible unit430include one or more combinations selected from polyester, polyamide, and polypropylene. The brush unit410and the floor brush cover420are at least designed to partly attached with each other. Or, in one embodiment of the present disclosure, the flexible unit430and the floor brush cover420are at least designed to partly attached with each other. In an exemplary embodiment, the above attachment design is defined as the brush unit410and the flexible unit430being in contact with the floor brush cover420, or the distance between the two (one is defined as the combination of the brush unit410and the flexible unit430, the other is floor brush cover420) is within 5 mm.

It should be noted that the brush unit410is selected from fluff or soft fiber material. The above attachment design between the inner wall of the floor brush cover420and at least a part of the brush unit410can be understood to mean that the inner wall of the floor brush cover420is in direct contact with at least a part of the brush unit410, or the distance between the inner wall of the floor brush cover420and at least a part of the brush unit410is within 5 mm. The above attachment design between the inner wall of the floor brush cover420and at least a part of the brush unit410is not only able to stir the dirt on the ground but also forms friction with the inner wall of the brush cover420. In other words, a friction and squeezing force will be formed among the floor brush400, the floor brush cover420, and the cleaning medium after cleaning water and other cleaning media are sucked on the floor brush400. The friction and squeezing force between the three can clean both the surface of the floor brush400and the floor brush cover420so as to make the cleaning equipment always keep the floor brush400and the floor brush cover420clean during and after the working process.

Further, in one embodiment of the present disclosure, the cleaning equipment further includes the suction producing device300disposed on the machine body200, the floor brush400, and the connecting pipe500. The first terminal and the second terminal, defined on the connecting pipe500. The first terminal is configured to connect to the floor brush400, and the second terminal is configured to connect to the inlet of the first flow channel110a. A suction opening of the suction producing device300is connected to the outlet of the second flow channel110bof the wastewater tank110. Under the suction force of the suction producing device300, the air-incorporated sewage and garbage obtained after scrubbing by the floor brush400is moved along through the connecting pipe500to enter into the accommodation cavity of the wastewater tank110through the first flow channel110a. The separated air is discharged from the wastewater tank structure100through the second flow channel100band exhausted to the external environment by the suction producing device300.

Furthermore, in one embodiment of the present disclosure, a divider310, including a first air outlet210and a second air outlet220, is disposed on the machine body200, and the first air outlet210and a second air outlet220are disposed symmetrically. The first air outlet210and a second air outlet220are both connected through a suction opening340of the suction producing device300. The air outlets210,220are disposed on the machine body200and both locate at the same plane with the suction opening340of the suction producing device300. It can also be understood that the air outlets210,220are located on the machine body200and on the basic plane A where the wastewater tank110is in contact with the machine body200. The air outlets210,220are used to discharge the air sucked-in by the suction producing device300out of the machine body200.

The suction producing device300comprises the divider310to divide the air sucked-in by the suction producing device300into a first air stream320and a second air stream330.

The air outlet comprises a first air outlet210and a second air outlet220, and the first air outlet210and a second air outlet220are disposed symmetrically and both connect to the outside of the machine body200.

The first air outlet210discharges the first air stream320and the second air outlet220discharges the second air stream330.

The air outlet direction of the first air outlet210and the second air outlet220is toward the direction close to the base1000of the machine body200. The air discharged from the first air outlet210and the second air outlet220is blown out of the machine body200along the matching gap between the wastewater tank100and the machine body200. The position and direction designs for the wastewater tank100and the air outlet(s)210,220of the present disclosure are intended to make sure that the air is not directly blown to the user.

Furthermore, the suction producing device300comprises a divider310. The divider310is provided to divide the air sucked-in by the suction producing device300into a first air stream320and a second air stream330. The first air outlet210discharges the first air stream320and the second air outlet220discharges the second air stream330. Decomposing the air through the divider310of the suction producing device300solves the problem of excessive accumulation of local air when the air is discharged, thereby effectively reducing the airflow noise of the cleaning equipment.

In some embodiments, the cleaning equipment includes a power source700configured in the machine body200. The power source700supplies power to the floor brush400and the suction producing device300. It should be noted that in other embodiments, the cleaning equipment can also be powered by commercial power directly, which is not particularly limited here. Furthermore, a container is defined in the machine body200, and the power source700and the suction producing device300are contained in the container.

In some embodiments, the suction producing device300is located on the upper side of the second flow channel110b, and the suction opening of the suction producing device300is disposed corresponding to the outlet of the second flow channel110b. Therefore, it is beneficial for the suction producing device300to suck out the air in the wastewater tank110. A hollow or mesh structure is formed at a bottom end of the machine body200at a position corresponding to the outlet of the second flow channel110b. In addition, the machine body200is provided with an air outlet connected with the accommodation cavity.

In some embodiments, as shown in theFIG. 5, a first sealing member610is disposed at a first connecting portion located between the wastewater tank structure100and the second terminal of the connecting pipe500, and the first sealing member610circles around the inlet of the first flow channel110a. Due to the arrangement of the first sealing member610, the sealing performance of the connection between the connecting pipe500and the wastewater tank structure100is improved so as to inhibit the air contained in the sewage and garbage from flowing out from the connection between the connecting pipe500and the wastewater tank structure100. The first sealing member610can be arranged at a mouth of a second end of the connecting pipe500or on the stand121of the filter assembly120. The first sealing member610can be a rubber ring, which can be fixed by a bonding process.

In some embodiments, as shown in theFIG. 5, a second sealing member620is disposed at a second connecting portion located between the wastewater tank structure100and the machine body200, and the second sealing member620circles around the outlet of the second flow channel110b. The second sealing member620can be arranged on the stand121of the filter assembly120or on the machine body200. Due to the arrangement of the second sealing member620, the sealing performance of the connection between the outlet of the second flow channel110band the machine body200is able to be improved so as to avoid affecting the suction effect of the suction producing device300.

In some embodiments, the cleaning equipment further includes a clean water tank800. The clean water tank800is disposed on the machine body200. The clean water tank800is connected with the floor brush400by a water pipe so as to deliver water to the floor brush400to provide water for brushing the floor.

In some embodiments, the cleaning equipment further includes a handle900. The handle900is disposed on a top end of the machine body200and used held during cleaning to improve the comfort of use.

In some embodiments, the cleaning equipment further includes a power button. The power button is disposed on the handle. The power button is electrically connected with the power source700, which is used to control the working status of the cleaning equipment.

An embodiment of the present disclosure provides a wastewater tank structure100. As shown inFIG. 1andFIG. 2, the wastewater tank structure100includes the tank body111and the tank cover assembly2. The tank cover assembly2is disposed on a top end of the tank body111.

Specifically as shown inFIG. 1andFIG. 2, the tank body111has the accommodation cavity therein. It can be understood that the tank body111can specifically be in the shape of a cup, no other structures are present in the accommodation cavity of the tank body111, and an inner wall of the accommodation cavity is smooth and rounded so as to facilitate rinsing. In addition, an end (specifically the top end) of the tank body111is formed with an opening in communication with the accommodation cavity. The tank cover assembly2includes the tank cover112and the first flow channel110a. The tank cover112is disposed on an end (specifically the top end) of the tank body111proximate to the opening12. It can be understood that the tank cover112of the tank cover assembly2covers the tank body111such that a sealed space is formed in the tank body111. The tank cover112can specifically be detachable relative to the tank body111, such that the tank body111can be detached therefrom and cleaned. The first flow channel110ais in communication with the tank cover112and the accommodation cavity. A terminal end of the first flow channel110ais provided with an even number of dividing outlets110c.

A fluid stream flowing in through the first flow channel110ais divided into the same number of fluid streams as the number of the dividing outlets110c, and a plurality of fluid streams are formed into pairs, in which the plurality of fluid streams form into pairs having equal kinetic energies carried thereby. It should be noted that the statement “the plurality of fluid streams form into pairs having equal kinetic energies carried thereby” means the plurality of fluid streams form into pairs having completely equal or substantially equal kinetic energies carried thereby.

It can be understood that the operating principle of the wastewater tank structure100is substantially as follows. When subject to suction, a fluid stream such as air-incorporated sewage and garbage enters the tank cover112, then flows through the first flow channel110aand collides with an inner tube wall of the first flow channel110asuch that the air-incorporated sewage and garbage are divided in the first flow channel110aand are divided by the dividing outlets110cinto the same number of fluid streams as the number of the dividing outlets110c, and a plurality of fluid streams are formed into pairs. The plurality of fluid streams flow into the accommodation cavity and collide with each other such that the air-incorporated sewage and garbage is separated therefrom. The sewage and garage, subject to the inertial effect caused by gravity, enter the bottom of the accommodation cavity of the tank body111, and the separated air is discharged to an external environment.

In summary, compared with the prior art, the wastewater tank structure100has at least the following benefits. In the wastewater tank structure100, the inner surface of the tank structure100is configured as a circle shape or arc shape, the first flow channel110ais disposed on the tank cover112covering the tank body111such that the fluid stream, such as the air-incorporated sewage and garbage, can flow through the first flow channel110ainto the accommodation cavity of the tank body111, and the air is separated from the sewage and garbage and discharged to the external environment. In addition, the first flow channel110ais disposed on the tank cover112of the tank cover assembly2, thereby simplifying the internal structure of the tank body111, reducing occupied space, and facilitating cleaning. In addition, when subject to suction, a fluid stream such as the air-incorporated sewage and garbage flows from the tank cover112through the first flow channel110aand is divided by the dividing outlets110cof the first flow channel110ainto the same number of fluid streams as the number of the dividing outlets110c, and a plurality of fluid streams are formed into pairs. The plurality of fluid streams flow into the accommodation cavity and collide with each other to generate opposing cyclone air streams colliding with each other such that an interaction between kinetic energy of the air and kinetic energy of the sewage and garbage in the tank body111is suppressed, and fluctuation of the liquid level in the accommodation cavity of the tank body111is suppressed, thereby effectively preventing the sewage and garbage from being blown away by the air into a motor or into the external environment and increasing the degree of separation of the air from the sewage and garbage. In summary, the wastewater tank structure100has a simple structure and large storage space, can be easily cleaned, and there is a high degree of separation of air from sewage and garbage.

In order to enable those skilled in the art to better understand the solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described below with reference to the drawings.

In some embodiments, the tank cover assembly2further includes the second flow channel110b, and the second flow channel110bis in communication with the tank cover112and the accommodation cavity.

The plurality of fluid streams collide with each other in the accommodation cavity such that air incorporated therein is separated from the sewage and garbage, and the separated air is capable of flowing to the outside through the second flow channel110b. It can be understood that the second flow channel110bis disposed on the tank cover112of the tank cover assembly2, thereby simplifying the internal structure of the tank body111, reducing occupied space, and facilitating cleaning. In addition, the plurality of fluid streams flow into the accommodation cavity and collide with each other such that the air incorporated sewage therein is separated from the sewage and garbage. The sewage and garbage, subject to the inertial effect caused by gravity, enter the bottom of the accommodation cavity of the tank body111, and the air can be smoothly discharged to an external environment by means of the second flow channel110b.

In some embodiments as shown inFIG. 2, all of the dividing outlets110cof the first flow channel110aare directed towards the side wall of the tank body111. It can be understood that when subject to suction, a fluid stream such as the air-incorporated sewage and garbage flows from the tank cover112into the first flow channel110a, and when subject to the suction and the inertial effect caused by gravity of the sewage and garbage, the sewage and garbage entering the first flow channel110ais divided into the same number of fluid streams as the number of the dividing outlets110cwhen colliding with the inner tube wall of the first flow channel110a, and a plurality of fluid streams are formed into pairs and flow through corresponding dividing outlets110crespectively into the accommodation cavity. After entering the accommodation cavity, the plurality of fluid streams all hit the side wall of the tank body111and then change directions again to generate opposing cyclone air streams colliding with each other such that an interaction between kinetic energy of the air and kinetic energy of the sewage and garbage in the tank body111is suppressed, and fluctuation of the liquid level in the accommodation cavity of the tank body111is suppressed, thereby effectively preventing the sewage and garbage from being blown away by the air into a motor or into the external environment and increasing the degree of separation of the air from the sewage and garbage.

In some embodiments, an inlet of the second flow channel110bis directed towards the side wall of the tank body111so as to better prevent surges in the tank body111from entering the inlet of the second flow channel110b, thereby further increasing the utilization rate of storage space in the tank body111. It should be noted that the inlet of the second flow channel110band the dividing outlets110cof the first flow channel110aare offset so as to prevent the fluid stream flowing out of the dividing outlets110cof the first flow channel110afrom directly flowing out through the inlet of the second flow channel110b.

In some embodiments as shown inFIG. 1andFIG. 2, a top end surface of the tank cover112is sloped, the tank cover112includes a low end and a high end connected to the low end, and the second flow channel110bis correspondingly disposed at the high end of the tank cover112. It should be noted that the low end of the tank cover112refers to an end of the tank cover112where the distance between the top end surface of the tank cover112and the bottom of the tank body111is the shortest, and the high end of the tank cover112refers to an end of the tank cover112where the distance between the top end surface of the tank cover112and the bottom of the tank body111is the longest. It can be understood that in a cleaning process of a cleaning apparatus, such as the vacuum cleaner, the accommodation cavity of the tank body111is stored with sewage and garbage, such that movement of the vacuum cleaner causes sewage stored inside the tank body111to form surges. The second flow channel110bis thus disposed at the high end of the tank cover112such that the inlet of the second flow channel110bis located as far as possible away from the bottom of the tank body111in a limited space, and therefore the surges are prevented from entering the inlet of the second flow channel110b, thereby further improving the utilization rate of the storage space of the tank body111.

In some embodiments as shown inFIG. 2, the tank cover assembly2further includes the filter assembly120, and the filter assembly120includes the stand121and the filter122.

As shown inFIG. 1andFIG. 2, at a position corresponding to the outlet of the second flow channel110b, an end of the tank cover112away from the tank body111has a discharging cavity configured to cause the separated air to flow out, and the stand121is disposed on the tank cover112. Specifically, the stand121and the tank cover112can be an integrally formed structure or separate structures, and the structure is not specifically limited herein. The hollow portion (not shown) is disposed on the stand121, and the filter122is disposed on the hollow portion of the stand121. It can be understood that the stand121is provided with the hollow portion at a position corresponding to the discharging cavity such that the stand121provided with the hollow portion can stably bear the filter122and also prevent the filter122from being detached from the stand121. In addition, the position of the hollow portion relative to the discharging cavity enables the air flowing out of the second flow channel110bto pass through the hollow portion of the stand121, to be further filtered by the filter122, and then to be discharged to the external environment. It can be understood that the air separated from the sewage and garbage is filtered again using the filter122after being discharged from the second flow channel110b, thereby further purifying the air and effectively preventing the sewage and garbage carried in the air from being carried out by the air. It should be noted that in this embodiment, the filter122can be a sponge filter. The sponge filter is resilient, has high filtration efficiency and low resistance to air, and is repeatedly washable and cheap, and therefore the sponge filter is effective in filtering the air and reducing costs. In addition, in this embodiment, the filter122is semicircular, and correspondingly the hollow portion of the stand121is also semicircular.

On the basis of the aforementioned wastewater tank structure100, an embodiment of the present disclosure further provides a vacuum cleaner. As shown inFIG. 3toFIG. 5, the vacuum cleaner includes the machine body200and the aforementioned wastewater tank structure100. The wastewater tank structure100is vertically detachably connected to the machine body200. It should be noted that in this embodiment, the wastewater tank structure100is connected to the machine body200by means of an engagement structure. Specifically, the engagement structure includes the snap jointer130, the spring140, and an engagement recess (not shown). The snap jointer130is connected to the tank cover112using the spring140. At a position corresponding to the snap jointer130, the engagement recess is disposed on the machine body200. The snap jointer130engages with and is connected to the engagement recess, thereby achieving a firm connection and facilitating detachment. It can be understood that the wastewater tank structure100is detachably connected to the machine body200, and when the wastewater tank structure100needs to be cleaned, the wastewater tank structure100is detached from the machine body200for cleaning, thereby achieving easy detachment and mounting.

In summary, compared with the prior art, the vacuum cleaner has at least the following benefits. In the wastewater tank structure100used by the vacuum cleaner, the first flow channel110ais disposed on the tank cover112covering the tank body111such that the fluid stream, such as the air-incorporated sewage and garbage, can flow through the first flow channel110ainto the accommodation cavity of the tank body111, and the air is separated from the sewage and garbage and discharged to the external environment. In addition, the first flow channel110ais disposed on the tank cover112of the tank cover assembly2, thereby simplifying the internal structure of the tank body111, reducing occupied space, and facilitating cleaning. In addition, when subject to suction, a fluid stream, such as the air-incorporated sewage and garbage, flows from the tank cover112through the first flow channel110aand is divided by the dividing outlets110cof the first flow channel110ainto the same number of fluid streams as the number of the dividing outlets110c, and a plurality of fluid streams are formed into pairs. The plurality of fluid streams flow into the accommodation cavity and collide with each other to generate opposing cyclone air streams colliding with each other such that an interaction between kinetic energy of the air and kinetic energy of the sewage and garbage in the tank body111is suppressed, and fluctuation of the liquid level in the accommodation cavity of the tank body111is suppressed, thereby effectively preventing the sewage and garbage from being blown away by the air into a motor or to the external environment and increasing the degree of separation of the air from the sewage and garbage. In summary, the vacuum cleaner has a simple structure and large storage space, can be easily cleaned, and there is a high degree of separation of air from sewage and garbage.

In some embodiments as shown inFIG. 3andFIG. 4, the vacuum cleaner further includes the floor brush400, the connecting pipe500, and the suction producing device300. The floor brush400, the wastewater tank structure100, and the suction producing device300are sequentially mounted on the machine body200from bottom to top. The floor brush400is configured to scrub a floor. The wastewater tank structure100is configured to store sewage and garbage collected after floor scrubbing. The suction producing device300is configured to produce suction such that the air-incorporated sewage and garbage collected after floor scrubbing by the floor brush400enters the wastewater tank structure100and flows out therefrom. It should be noted that the machine body200has a container cavity (not shown) therein. The suction producing device300and a power source700are both accommodated in the container cavity, and a suction port of the suction producing device300is aligned with the bottom end of the machine body200. At a position corresponding to the outlet of the second flow channel110b, the bottom end of the machine body200defines a hollow structure or a mesh structure, and the machine body200is provided with an air outlet in communication with the container cavity. The connecting pipe500includes a first end and a second end opposing and connected to the first end, i.e., two opposite ends of the connecting pipe500. The first end of the connecting pipe500is connected to the floor brush400. The second end of the connecting pipe500is connected to the tank cover assembly2of the wastewater tank structure100. The second end of the connecting pipe500is configured to be in communication with the inlet of the first flow channel110a. When subject to suction produced by the suction producing device300, air-incorporated sewage and garbage collected after floor scrubbing by the floor brush400flows along the connecting pipe500and through the first flow channel110aand enters the accommodation cavity of the tank body111to form fluid streams colliding with each other, such that air is separated from the sewage and garbage, rises to an upper portion of the accommodation cavity, is discharged from the wastewater tank structure100through the second flow channel110b, then enters the container cavity and flows out through the air outlet.

In some embodiments as shown inFIG. 1andFIG. 2, in order to improve the compactness of the structure, an edge of the tank body111is recessed in the lengthwise direction of the machine body200towards a central axis of the tank body111to form a recess for accommodating the connecting pipe500, such that the connecting pipe500can be fit to the tank body111and extend into the tank body111from the top end thereof.

In some embodiments as shown inFIG. 4, the vacuum cleaner further includes the power source700. The power source700is disposed in the machine body200. The power source700is configured to supply power to the floor brush400and the suction producing device300. It should be noted that in other embodiments, the vacuum cleaner can also be powered by main power, which is not specifically limited herein.

In some embodiments as shown inFIG. 5, the vacuum cleaner further includes the first seal member610. The first seal member610is disposed at a connection point of the connecting pipe500and the tank cover assembly2. It should be noted that the first seal member610can be specifically disposed at a tube opening of the connecting pipe500or on the tank cover assembly2. It can be understood that the first seal member610improves sealing at the connection point of the connecting pipe500and the tank cover assembly2, thereby preventing the air-incorporated sewage and garbage from flowing out from the connection point of the connecting pipe500and the tank cover assembly2.

In some embodiments as shown inFIG. 5, the vacuum cleaner further includes the second seal member620. At a position at the outlet of the second flow channel110b, the second seal member620is disposed at a connection point of the wastewater tank structure100and the machine body200. It should be noted that the second seal member620can be specifically disposed at the outlet of the second flow channel110bor on the machine body200. It can be understood that the second seal member620can improve sealing at the connection point of the outlet of the second flow channel110bof the wastewater tank structure100and the machine body200, thereby preventing the suction effect of the suction producing device300from being affected.

In some embodiments as shown inFIG. 3, the vacuum cleaner further includes the clean water tank800. The clean water tank800is disposed on the machine body200. The clean water tank800is connected to the floor brush400by means of a water tube so as to spray water to the floor brush400and provide a water source for scrubbing the floor.

In some embodiments as shown inFIG. 3, the vacuum cleaner further includes the handle900. The handle900is disposed at the top end of the machine body200so as to facilitate gripping during cleaning, thereby improving use comfort.

In some embodiments as shown inFIG. 3, the vacuum cleaner further includes a power button. The power button is disposed on the handle900. The power button is electrically connected to the power source700so as to control an operating state of the vacuum cleaner.

The above descriptions are merely the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various alterations and changes. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principle of the present disclosure shall fall within the scope of the claims of the present disclosure.