CN218922466U

CN218922466U - Cleaning device

Info

Publication number: CN218922466U
Application number: CN202223602323.7U
Authority: CN
Inventors: 杨伟国; 向维成; 黄栋; 康菲; 苗雨来
Original assignee: Hubei Midea Washing Machine Co Ltd
Current assignee: Hubei Midea Washing Machine Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-28
Anticipated expiration: 2032-12-30
Also published as: CN220529915U

Abstract

The disclosure relates to the technical field of household appliances and provides a cleaning device, which comprises a clothes treatment device, wherein a first drain pipe for draining sewage is arranged on the clothes treatment device; the sweeper is provided with a second drain pipe for draining sewage; the three-way structure comprises a first liquid inlet pipe, a second liquid inlet pipe and a liquid discharge pipe, wherein the liquid inlet end of the first liquid inlet pipe is communicated with the first drain pipe; the liquid inlet end of the second liquid inlet pipe is communicated with the second drain pipe; the liquid discharge end of the first liquid inlet pipe and the liquid discharge end of the second liquid inlet pipe are communicated with the liquid inlet end of the liquid discharge pipe, and the liquid discharge end of the liquid discharge pipe is suitable for being communicated with a floor drain. The cleaning device provided by the disclosure can be directly communicated with the floor drain through the tee joint structure, so that the drainage effect of the liquid discharge pipe approaches the drainage effect of the floor drain, sewage can be timely discharged, and the problems of sewage streaming and reflux are avoided between the first drain pipe and the second drain pipe.

Description

Cleaning device

Technical Field

The disclosure relates to the technical field of household appliances, in particular to a cleaning device.

Background

With the increasing maturity of household electrical appliances production technology, can integrate two kinds of equipment of different functions in some prior art, form cleaning device all-in-one. In the related art, since two devices of the cleaning device have drainage requirements, only one floor drain is often reserved in a room with a drainage pipeline, when the drainage pipes of the two devices drain into one floor drain at the same time, problems of sewage streaming and reverse flow easily occur, so that the two devices of the cleaning device cannot be used at the same time.

Disclosure of Invention

In order to solve the technical problems described above, the present disclosure provides a cleaning device.

The present disclosure provides a cleaning device, characterized by comprising:

a laundry treating apparatus provided with a first drain pipe for draining contaminated water;

the sweeper is provided with a second drain pipe for draining sewage;

the three-way structure comprises a first liquid inlet pipe, a second liquid inlet pipe and a liquid discharge pipe, wherein the liquid inlet end of the first liquid inlet pipe is communicated with the first drain pipe; the liquid inlet end of the second liquid inlet pipe is communicated with the second drain pipe; the liquid discharge end of the first liquid inlet pipe and the liquid discharge end of the second liquid inlet pipe are communicated with the liquid inlet end of the liquid discharge pipe, and the liquid discharge end of the liquid discharge pipe is suitable for being communicated with a floor drain.

Optionally, a mounting part is arranged on the periphery of the liquid discharge pipe, and the mounting part is used for being connected with the floor drain.

Optionally, the mounting portion is disposed at a liquid inlet end of the liquid discharge tube.

Optionally, the first liquid inlet pipe is arranged along the axial direction of the liquid discharge pipe, and the second liquid inlet pipe is obliquely arranged relative to the axial direction of the liquid discharge pipe.

Optionally, the diameter of the first liquid inlet pipe is smaller than the diameter of the liquid outlet pipe, and the central axis of the first liquid inlet pipe is offset to a side away from the second liquid inlet pipe in the radial direction of the liquid outlet pipe.

Optionally, a baffle is disposed in the liquid discharge pipe and between the liquid discharge end of the first liquid inlet pipe and the liquid discharge end of the second liquid inlet pipe.

Optionally, two ends of the baffle perpendicular to the liquid discharge direction are connected with the inner wall of the liquid discharge pipe.

Optionally, the baffle is disposed below a side wall of the first liquid inlet pipe, which is close to one side of the second liquid inlet pipe.

Optionally, the baffle is an arc structure, and the inner surface of the baffle is coplanar with the inner wall of the liquid inlet pipe.

Optionally, the bottom end of the baffle is lower than the liquid discharge end of the second liquid inlet pipe.

Optionally, a first one-way valve is arranged in the first drain pipe, and a second one-way valve is arranged in the second drain pipe.

According to the cleaning device provided by the embodiment of the disclosure, the first drain pipe of the clothes treatment equipment can be communicated with the liquid inlet end of the first liquid inlet pipe by arranging the first liquid inlet pipe, so that a drain passage is formed, and sewage in the first drain pipe can be drained into the first liquid inlet pipe; through the arrangement of the second liquid inlet pipe, the second drain pipe of the sweeper can be communicated with the liquid inlet end of the second liquid inlet pipe, and sewage in the second drain pipe is guided, so that the sewage in the second drain pipe flows into the second liquid inlet pipe; through setting up the flowing back end of first feed liquor pipe and the flowing back end of second feed liquor pipe all with the feed liquor end intercommunication of flowing back pipe, can be further with the sewage in first feed liquor pipe and the second feed liquor pipe all arrange to the flowing back intraductal, and through setting up the flowing back end of flowing back pipe into with the floor drain intercommunication, can directly be with sewage in the floor drain, not only guaranteed that sewage flows in sealed body, also avoided the setting of adaptor and transfer pipeline, the drainage effect that makes the flowing back pipe approaches the drainage effect of floor drain to make the sewage can be by timely discharge, avoid producing sewage series flow, palirrhea problem between first drain pipe and the second drain pipe.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic front side view of a cleaning device according to an embodiment of the present disclosure;

FIG. 2 is a rear schematic view of a cleaning device according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a tee structure according to an embodiment of the present disclosure;

FIG. 4 is a partial schematic view of a tee structure according to an embodiment of the present disclosure;

fig. 5 is a cross-sectional view of a sweeper according to an embodiment of the present disclosure.

Wherein, 1, three-way structure; 11. a first liquid inlet pipe; 111. a first clamping part; 12. a second liquid inlet pipe; 121. a second clamping part; 13. a liquid discharge pipe; 14. a mounting part; 15. a baffle; 2. a cleaning device; 20. a laundry treatment apparatus; 201. a first drain pipe; 202. a first water inlet pipe; 22. a sweeper; 221. a second drain pipe; 222. a second water inlet pipe; 223. a second one-way valve; 3. a water tap.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

As shown in fig. 1 to 3, the present embodiment provides a cleaning device 2 including: a laundry treating apparatus 20 on which a first drain pipe 201 for draining contaminated water is provided; the sweeper 22, the sweeper 22 is provided with a second drain pipe 221 for draining sewage; the three-way structure 1 comprises a first liquid inlet pipe 11, a second liquid inlet pipe 12 and a liquid discharge pipe 13, wherein the liquid inlet end of the first liquid inlet pipe 11 is communicated with a first drain pipe 201, specifically, the first liquid inlet pipe 11 and the first drain pipe 201 can be mutually sleeved or clamped, and the first liquid inlet pipe 11 and the first drain pipe 201 can be connected through a threaded connecting piece; the liquid inlet end of the second liquid inlet pipe 12 is communicated with the second drain pipe 221, and the connection mode between the second liquid inlet pipe 12 and the second drain pipe 221 can adopt the same connection mode as the connection mode of the first liquid inlet pipe 11 and the liquid outlet pipe 13 of the first drain pipe 201, and can also be independently set according to the drainage amount under the specific use scene; the liquid discharge end of the first liquid inlet pipe 11 and the liquid discharge end of the second liquid inlet pipe 12 are communicated with the liquid inlet end of the liquid discharge pipe 13, the liquid discharge end of the liquid discharge pipe 13 is suitable for being communicated with a floor drain, specifically, the liquid discharge pipe 13 is directly communicated with the floor drain, the liquid discharge ends of the liquid discharge pipes 13 can be sleeved in a pipeline of the floor drain to be connected through reducing pipes, and clamping connection can be carried out through a clamp connector.

The cleaning device 2 of the present embodiment enables the first drain pipe 201 of the laundry treating apparatus 20 to communicate with the liquid inlet end of the first liquid inlet pipe 11 by providing the first liquid inlet pipe 11, thereby forming a drain passage capable of draining the sewage in the first drain pipe 201 into the first liquid inlet pipe 11; by arranging the second liquid inlet pipe 12, the second water outlet pipe 221 of the sweeper 22 can be communicated with the liquid inlet end of the second liquid inlet pipe 12, and the sewage in the second water outlet pipe 221 can be guided, so that the sewage in the second water outlet pipe 221 flows into the second liquid inlet pipe 12; through setting up the flowing back end of first feed liquor pipe 11 and the flowing back end of second feed liquor pipe 12 all with the feed liquor end intercommunication of flowing back pipe 13, can further all arrange the sewage in first feed liquor pipe 11 and the second feed liquor pipe 12 to in the flowing back pipe 13, and through setting up the flowing back end of flowing back pipe 13 to with the floor drain intercommunication, can directly arrange sewage in the floor drain, not only guaranteed that sewage flows in sealed body, also avoided the setting of adaptor and transfer pipeline, the drainage effect that makes flowing back pipe 13 approaches the drainage effect of floor drain, thereby make the sewage can be discharged in time, avoid producing sewage series flow, the problem of backward flow between first drain pipe 201 and the second drain pipe 221.

The liquid inlet end of the liquid discharge pipe 13 is a position having a liquid inlet function with respect to the liquid discharge end of the liquid discharge pipe 13, and is not one end of the specific structure of the liquid discharge pipe 13.

For example, the three-way structure 1 may be a T-shaped structure, that is, one of the first liquid inlet pipe 11 and the second liquid inlet pipe 12 is disposed parallel to the axial direction of the liquid discharge pipe 13, and the other is disposed perpendicular to the axial direction of the liquid discharge pipe 13; the tee structure 1 may also be a Y-shaped structure, i.e. an included angle with an acute angle is formed between the first liquid inlet pipe 11 and the second liquid inlet pipe 12, and is connected with one end of the liquid discharge pipe 13 respectively; in addition, at least part of the first inlet pipe 11 and/or the second inlet pipe 12 may also be provided as an arc-shaped pipe.

In some embodiments, the outer periphery of the drain pipe 13 is provided with a mounting portion 14, and the mounting portion 14 may be formed integrally with the drain pipe 13, or may be separately formed after the drain pipe 13 is formed, and the mounting portion 14 is used for connection with a floor drain. Specifically, the mounting portion 14 may be a hood-shaped interface with a downward opening, and is used for being fastened on the floor drain, so that not only can the stability of connection between the liquid discharge tube 13 and the floor drain be ensured, but also the gap of the floor drain can be shielded, and gas upwelling in the floor drain can be avoided. Optionally, the mounting portion 14 may be provided with a mounting hole, and a connecting piece may be disposed between the mounting portion 14 and the floor drain through the mounting hole, so as to further improve the connection stability of the drain pipe 13 and the floor drain.

In some more detailed embodiments, the mounting portion 14 is disposed at the liquid intake end of the liquid discharge tube 13. Specifically, the mounting portion 14 is disposed away from the drain end of the drain pipe 13, so that more space can be avoided for connection between the drain pipe 13 and the floor drain, and particularly, for an embodiment in which the drain end of the drain pipe 13 is sleeved with a pipe of the floor drain, the length of a sleeved section between the drain pipe 13 and the floor drain can be prolonged, so that the drain pipe 13 is prevented from being flushed out when water leakage or excessive water pressure is generated at the connection position of the drain pipe 13 and the floor drain.

In some more specific embodiments, the first liquid inlet pipe 11 is disposed along the axial direction of the liquid discharge pipe 13, and the first liquid inlet pipe 11 may be disposed coaxially with the liquid discharge pipe 13 or may be disposed eccentrically with respect to the cross section of the liquid discharge pipe 13, and the second liquid inlet pipe 12 is disposed obliquely with respect to the axial direction of the liquid discharge pipe 13. Specifically, the first liquid inlet pipe 11 and the liquid outlet pipe 13 have no bending transition, can avoid forming shielding on a drainage channel, have better drainage effect, and are suitable for connecting equipment with larger drainage amount; the second liquid inlet pipe 12 may be inclined downwards along the drainage direction, so that sewage can be prevented from remaining in the pipe body, which is beneficial to sewage drainage, and in some usage scenarios, the position of the floor drain opening is higher than the placement surface of the cleaning device 2, and even higher than the connection port between the second drain pipe 221 and the cleaning device 2, in this embodiment, the second liquid inlet pipe 12 may also be arranged to be inclined upwards along the drainage direction, which not only can ensure the communication between the second drain pipe 221 and the liquid drain pipe 13, but also can prevent the second drain pipe 221 from bending or buckling.

Further, the diameter of the first liquid inlet pipe 11 is smaller than the diameter of the liquid outlet pipe 13, and the central axis of the first liquid inlet pipe 11 is offset from the side of the second liquid inlet pipe 12 in the radial direction of the liquid outlet pipe 13, and the side of the cross-sectional circle of the first liquid inlet pipe 11 away from the second liquid inlet pipe 12 may be tangent to the cross-sectional circle of the liquid outlet pipe 13 in the downward projection direction. Specifically, the above structure can avoid the space for the setting of the second liquid inlet pipe 12 to the greatest extent, can avoid influencing the drainage of the first liquid inlet pipe 11, and is convenient for the design and processing of integrated into one piece simultaneously. In the embodiment shown in fig. 4, the liquid inlet end of the first liquid inlet pipe 11 is provided with a first clamping portion 111, the liquid inlet end of the second liquid inlet pipe 12 is provided with a second clamping portion 121, and the first clamping portion 111 and the second clamping portion 121 are respectively used for being clamped with the first drain pipe 201 and the second drain pipe 221 so as to improve the convenience and stability of installation of the cleaning device 2 and improve the user experience.

In other embodiments, a baffle 15 is disposed within the drain pipe 13 between the drain end of the first liquid inlet pipe 11 and the drain end of the second liquid inlet pipe 12, at least one end of the baffle 15 being connected to the inner wall of the drain pipe 13. Specifically, by providing the baffle 15, the mutual interference between the sewage flowing into the liquid discharge pipe 13 from the first liquid inlet pipe 11 and the sewage flowing into the liquid discharge pipe 13 from the second liquid inlet pipe 12 can be avoided, the drainage speed is affected, and the sewage in the first liquid inlet pipe 11 and the sewage in the second liquid inlet pipe 12 are caused to flow reversely or in series, and the baffle 15 may be of a structure integrally formed with the liquid discharge pipe 13 or of an inserting structure arranged in the liquid discharge pipe 13. In addition, the baffle 15 structure can also form a support in the liquid inlet end of the drain pipe, so that the deformation of the liquid inlet end of the liquid discharge pipe 13 is avoided to limit the flow rate of sewage in the pipe.

In some further embodiments, both ends of the baffle 15 perpendicular to the liquid discharge direction are connected to the inner wall of the liquid discharge tube 13 to form a rib structure separating the liquid discharge tube 13. In more detail, by forming the rib blocking structure, on one hand, the liquid discharging end of the first liquid inlet pipe 11 and the liquid discharging end of the second liquid inlet pipe 12 can be completely separated, so that mutual interference between the water discharging of the first liquid inlet pipe 11 and the water discharging of the second liquid inlet pipe 12 caused by the circumferential flow of sewage along the pipe wall is avoided, and on the other hand, a support can be formed in the liquid discharging pipe 13, and the strength of the liquid discharging pipe 13 is enhanced.

In some embodiments, the baffle 15 is disposed below a side wall of the first liquid inlet pipe 11 near the side of the second liquid inlet pipe 12, and may be an arc structure extending along the side wall of the first liquid inlet pipe 11, or may be a flat plate structure disposed on the liquid outlet pipe 13. Specifically, the baffle 15 is disposed along the drainage direction, so as to avoid shielding the first liquid inlet pipe 11, thereby ensuring the drainage efficiency of the first drain pipe 201.

More specifically, the baffle 15 has an arc structure, the inner surface of the baffle 15 is coplanar with the inner wall of the liquid inlet pipe, the inner surface of the baffle 15 is a surface facing the liquid outlet end of the first liquid inlet pipe 11, and the outer surface of the baffle 15 is a surface facing the liquid outlet end of the second liquid inlet pipe 12. Through the arrangement mode, on one hand, the baffle 15 can be prevented from shielding the liquid discharge end of the first liquid inlet pipe 11, and on the other hand, a larger space can be avoided for liquid discharge of the second liquid discharge pipe 13; in addition, because the outer surface of the baffle 15 is of an arc-shaped structure, the sewage discharged in the second liquid discharge pipe 13 can be conducted in a dispersed mode, and the phenomenon that the flow speed is influenced due to the fact that the sewage is splashed back into the second liquid discharge pipe 13 and the flow speed is disturbed is avoided.

Further, the bottom end of the baffle 15 is lower than the liquid discharge end of the second liquid inlet pipe 12, that is, the projection of the baffle 15 on the pipe wall can shield the liquid discharge end of the second liquid inlet pipe 12. Specifically, one end of the baffle 15 in the drainage direction is located in the same plane as the drainage end of the first liquid inlet pipe 11, and the other end is lower than the lowest point of the drainage end of the second liquid inlet pipe 12 in the drainage direction, so that sewage in the first liquid inlet pipe 11 and the second liquid inlet pipe 12 is completely separated at the liquid inlet end of the liquid outlet pipe 13, and the sewage is collected after the flow direction of the sewage in the liquid outlet pipe 13 is stable, so that the problems of series flow, reverse flow and the like of the sewage caused by unsmooth drainage due to mutual interference of the flow direction of the sewage can be avoided.

The following describes the present solution with reference to a specific embodiment, where the laundry treatment apparatus 20 and the sweeper 22 may be vertically arranged, and the laundry treatment apparatus 20 is disposed above the sweeper 22, so that space can be saved, and the laundry treatment apparatus 20 may be specifically a washing machine, a clothes dryer, a washing and drying integrated machine, a care cabinet, or the like; the laundry treating apparatus 20 is provided with a first drain pipe 201, the sweeper 22 is provided with a second drain pipe 221, the first drain pipe 201 is communicated with the liquid inlet end of the first liquid inlet pipe 11, and the second drain pipe 221 is communicated with the liquid inlet end of the second liquid inlet pipe 12. In more detail, the laundry treating apparatus 20 is further provided with a first water inlet pipe 202, one end of the first water inlet pipe 202 is communicated with the tap 3, and the other end of the first water inlet pipe may be communicated with a water inlet valve of the laundry treating apparatus 20, for injecting clean water into the laundry treating apparatus 20 to clean fabrics; wherein, the water inlet valve can be provided with a three-way connecting piece, the three-way connecting piece is communicated with one end connected with the second water inlet pipe 222, and the other end connected with the second water inlet pipe 222 is used for being communicated with a water station water inlet valve of the sweeper 22 and is used for injecting clean water into the sweeper 22 to clean the mop; when the washing process is finished, the contaminated water after the cloth treating apparatus 20 washes the cloth is discharged through the first drain pipe 201, and the contaminated water after the sweeper 22 washes the mop is discharged through the second drain pipe 221. Specifically, by providing the three-way structure 1 described above, the dirty water provided in the upper laundry treating apparatus 20 can be prevented from flowing back into the sweeper 22.

In the embodiment shown in fig. 5, a first check valve is disposed in the first drain pipe 201, and a second check valve 223 is disposed in the second drain pipe 221, where the first check valve and the second check valve 223 may be disposed at one end near the three-way structure 1 or one end near the cleaning device 2. By arranging the first check valve and the second check valve 223, sewage can be further prevented from flowing back into the clothes treating apparatus 20 and the sweeper 22, the clothes treating apparatus 20 and the sweeper 22 can be kept dry, clean and sanitary, user experience is improved, and service lives of the clothes treating apparatus 20 and the sweeper 22 are prolonged.

In the description of the embodiments of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the embodiments of the present disclosure and to simplify the description, and do not indicate or imply that the structures or devices referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present disclosure.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cleaning device, comprising:

a laundry treatment apparatus (20) provided with a first drain pipe (201) for draining contaminated water;

a sweeper (22), wherein a second drain pipe (221) for draining sewage is arranged on the sweeper (22);

the three-way structure (1) comprises a first liquid inlet pipe (11), a second liquid inlet pipe (12) and a liquid discharge pipe (13), wherein the liquid inlet end of the first liquid inlet pipe (11) is communicated with the first drain pipe (201); the liquid inlet end of the second liquid inlet pipe (12) is communicated with the second drain pipe (221); the liquid discharge end of the first liquid inlet pipe (11) and the liquid discharge end of the second liquid inlet pipe (12) are communicated with the liquid inlet end of the liquid discharge pipe (13), and the liquid discharge end of the liquid discharge pipe (13) is suitable for being communicated with a floor drain.

2. A cleaning device according to claim 1, characterized in that the drain pipe (13) is provided with a mounting portion (14) on its outer circumference, which mounting portion (14) is intended to be connected with a floor drain.

3. A cleaning device according to claim 2, characterized in that the mounting portion (14) is arranged at the liquid inlet end of the liquid discharge tube (13).

4. A cleaning device according to claim 1, characterized in that the first liquid inlet pipe (11) is arranged in the axial direction of the liquid discharge pipe (13), and the second liquid inlet pipe (12) is arranged obliquely with respect to the axial direction of the liquid discharge pipe (13).

5. The cleaning device according to claim 4, characterized in that the diameter of the first liquid inlet pipe (11) is smaller than the diameter of the liquid outlet pipe (13), and that the central axis of the first liquid inlet pipe (11) is offset in the radial direction of the liquid outlet pipe (13) to a side remote from the second liquid inlet pipe (12).

6. A cleaning device according to any one of claims 1-5, characterized in that a baffle (15) is arranged in the drain pipe (13) between the drain end of the first liquid inlet pipe (11) and the drain end of the second liquid inlet pipe (12).

7. A cleaning device according to claim 6, characterized in that both ends of the baffle (15) perpendicular to the liquid discharge direction are connected to the inner wall of the liquid discharge pipe (13).

8. The cleaning device according to claim 7, characterized in that the baffle (15) is arranged below the side wall of the first liquid inlet pipe (11) close to the side of the second liquid inlet pipe (12).

9. A cleaning device according to claim 8, characterized in that the baffle (15) is of arcuate configuration, the inner surface of the baffle (15) being coplanar with the inner wall of the inlet pipe (11).

10. A cleaning device according to claim 8, characterized in that the bottom end of the baffle (15) is lower than the discharge end of the second liquid inlet pipe (12).

11. The cleaning device according to claim 1, characterized in that a first one-way valve is arranged in the first drain pipe (201), and a second one-way valve (223) is arranged in the second drain pipe (221).