Wet cleaning apparatus

Abstract

The utility model discloses a wet type cleaning equipment, it includes dirty recovery system. Dirty recovery system includes the suction motor for producing suction airflow and is used for guiding the suction pipeline of suction airflow, and suction pipeline includes the first pipeline in the upstream of suction motor and the second pipeline in the downstream of suction motor, and dirty recovery system still includes the cooling pipeline for cooling for suction motor, and cooling pipeline includes the third pipeline in the upstream of suction motor and the fourth pipeline in the downstream of suction motor. Wet type cleaning equipment still includes hose and machine body. One end of hose is connected to first pipeline, and the other end of hose is equipped with cleaning head. Machine body is defined with containing space for containing suction motor, and machine body is still defined with receiving space for receiving hose. Machine body still defines the first gas outlet with second pipeline and the second gas outlet with fourth pipeline, and the gas of first gas outlet and second gas outlet is into receiving space.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a wet cleaning device. Background Technology

[0002] Fabric cleaning machines are a type of wet cleaning equipment, primarily used for cleaning fabric sofas, carpets, and other similar items. Wet cleaning equipment generally includes a cleaning solution supply system and a dirt recovery system. The cleaning solution supply system directly or indirectly applies cleaning solution to the surface to be cleaned. The dirt recovery system typically includes a suction motor, which generates airflow to collect dirt into a recovery tank.

[0003] In existing technology, the airflow discharged by the suction motor is generally released directly through an air outlet located at the bottom. The air outlet is usually directly facing the surface where the device is placed, and the discharged airflow comes into direct contact with the ground. If used for a long time, this may damage the surface. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a wet cleaning device that effectively protects surrounding objects by discharging the airflow from the suction motor into the machine's containment space.

[0005] On the one hand, this utility model provides a wet cleaning device, including

[0006] A dirt recovery system includes a suction motor for generating a suction airflow and a suction conduit for guiding the suction airflow; the suction conduit includes a first conduit located upstream of the suction motor and a second conduit located downstream of the suction motor; the dirt recovery system also includes a cooling conduit for cooling the suction motor, the cooling conduit including a third conduit located upstream of the suction motor and a fourth conduit located downstream of the suction motor;

[0007] A hose, one end of which is in fluid communication with the first conduit, and the other end of which is fitted with a cleaning head;

[0008] The body has a defined receiving space for accommodating the suction motor; the body also has a defined storage space for accommodating the hose.

[0009] The body is further defined with a first air outlet connected to the second pipeline and a second air outlet connected to the fourth pipeline, and the gas discharged from the first air outlet and the second air outlet enters the storage space.

[0010] Optionally, the body includes an upper shell and a lower shell, wherein the upper shell is an integrally formed structure and the lower shell is an integrally formed structure.

[0011] Optionally, it also includes

[0012] The motor cover is disposed within the body of the machine, and the motor cover and the lower housing together define a motor mounting cavity.

[0013] Optionally, the motor cover and the lower housing also jointly define the fourth conduit.

[0014] Optionally, the top of the motor cover is provided with a motor inlet, and the upper housing is provided with a cooling air inlet.

[0015] Optionally, the upper housing defines an installation space, and the wet cleaning equipment further includes a recycling tank and a cleaning solution tank, which are detachably installed in the installation space.

[0016] Optionally, the recycling bin and the cleaning fluid tank are integrally formed into a storage tank, and the recycling bin is disposed between the cleaning fluid tank and the suction motor along the length of the wet cleaning equipment.

[0017] Optionally, the liquid storage tank includes a tank body and a cover. A riser is provided inside the tank body. The riser includes a liquid inlet, a liquid outlet, and a liquid inlet channel located between the liquid inlet and the liquid outlet. A gas-liquid separator is provided on the cover near the liquid outlet.

[0018] Optionally, the riser is inclined relative to the central axis of the suction motor.

[0019] Optionally, it also includes a handle, which is disposed on the upper housing and located above the suction motor.

[0020] This invention provides a wet cleaning device, which includes a dirt recovery system. The dirt recovery system includes a suction motor for generating a suction airflow and a suction pipe for guiding the suction airflow; the suction pipe includes a first pipe upstream of the suction motor and a second pipe downstream of the suction motor; the dirt recovery system also includes a cooling pipe for cooling the suction motor, the cooling pipe including a third pipe upstream of the suction motor and a fourth pipe downstream of the suction motor. The wet cleaning device also includes a hose and a body. One end of the hose is fluidly connected to the first pipe, and the other end of the hose is fitted with a cleaning head. The body defines a receiving space for accommodating the suction motor; the body also defines a storage space for storing the hose. The body further defines a first air outlet communicating with the second pipe and a second air outlet communicating with the fourth pipe, the gas discharged from the first and second air outlets entering the storage space. The system is equipped with a first air outlet and a second air outlet, and the gas discharged from the first air outlet and the second air outlet is discharged into the storage space. This can reduce noise and prevent damage to surrounding objects caused by high-speed airflow blowing directly on them for a long time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a sweeping robot according to one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of an upright vacuum cleaner in one embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of a horizontal vacuum cleaner in one embodiment;

[0024] Figure 4 for Figure 3 A schematic diagram of the structure of the canister vacuum cleaner in the illustrated embodiment (after removing the cleaning head and hose).

[0025] Figure 5 for Figure 3 A schematic diagram of the horizontal vacuum cleaner in the illustrated embodiment from another angle;

[0026] Figure 6 for Figure 3 A schematic diagram of the structure of the horizontal vacuum cleaner in the illustrated embodiment from another angle;

[0027] Figure 7 This is an exploded view of the structure of the wet cleaning device in one embodiment.

[0028] Figure 8 For along Figure 5 Cross-sectional view along the AA direction;

[0029] Figure 9 This is a cross-sectional view along the length of the wet cleaning equipment;

[0030] Figure 10 This is a schematic diagram of the liquid storage tank in one embodiment;

[0031] Figure 11 for Figure 10 The diagram shown is a schematic representation of the structure with the cover open in the embodiment shown.

[0032] Figure 12 This is a schematic diagram of the cover structure in one embodiment;

[0033] Figure 13 shows the route along Figure 10 Cross-sectional view in the middle BB direction (the air inlet is closed by the float);

[0034] Figure 14 shows the route along Figure 10 Cross-sectional view in the middle BB direction (with the air intake in the open state);

[0035] Figure 15 A schematic diagram of a liquid storage tank in an implementation with its lid in the open position;

[0036] Figure 16 For along Figure 10 Cross-sectional view in the CC direction (with the air intake in the open position);

[0037] Figure 17 for Figure 16 Enlarged view of the structure of region D in the middle;

[0038] Figure 18 For along Figure 10 Cross-sectional view in the CC direction (with the air intake closed);

[0039] Figure 19 This is a structural diagram of the emptying and recycling bin (the air inlet is lower than the outer edge, and sewage flows into the air outlet pipe).

[0040] Figure 20 This is a structural diagram of the emptying and recycling bin (the air inlet is higher than or level with the outer edge, and sewage does not flow into the air outlet pipe). Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] refer to Figure 1-3 The figure discloses a wet cleaning device 100, which can be a horizontal cleaning device, a vertical cleaning device, a handheld cleaning device, or a self-contained cleaning device. The wet cleaning device 100 generally includes a dirt recovery system and / or a cleaning fluid supply system. The dirt recovery system includes a suction motor 3 for generating a suction airflow, a suction pipe 31 for guiding the suction airflow, and a recovery tank 1 for recovering dirt. The cleaning fluid supply system provides cleaning fluid and includes a cleaning fluid pump and a cleaning fluid tank 2. The wet cleaning device 100 also includes an electrical control system, which includes circuit boards and other electrical components, and can control the operation and shutdown of the wet cleaning device 100. Since electrical control systems are very common in cleaning equipment, they will not be described in detail here. This application mainly describes the structure in detail.

[0046] refer to Figure 4-9 The suction line 31 includes a first line 311 located upstream of the suction motor 3 and a second line 312 located downstream of the suction motor 3. The dirt recovery system also includes a cooling line 32 for cooling the suction motor 3, which includes a third line 321 located upstream of the suction motor 3 and a fourth line 322 located downstream of the suction motor 3. Figure 8 As shown by the arrows in the diagram, the upper left arrow represents the cooling airflow, and the lower right arrow represents the suction airflow.

[0047] refer to Figure 5-9 The specific structure of one embodiment is described in detail below. The wet cleaning device 100 includes a body 4. The body 4 defines a receiving space 47 for accommodating a suction motor 3. The wet cleaning device 100 also includes a hose 5 (see reference). Figure 3 One end of the hose 5 is fluidly connected to the first conduit 311, and the other end of the hose 5 is fitted with a cleaning head 6. The body 4 also defines a storage space 41 for storing the hose 5. The body 4 also defines a first air outlet 42 connected to the second conduit 312 and a second air outlet 43 connected to the fourth conduit 322. The gas discharged from the first air outlet 42 and the second air outlet 43 enters the storage space 41.

[0048] refer to Figure 8The airflow from the first air outlet 42 and the second air outlet 43 is discharged into the storage space 41, preventing the airflow from blowing directly onto the ground and other surrounding objects. Both the first air outlet 42 and the second air outlet 43 are designed to face downwards. When the airflow blows directly onto the surface of the lower housing 45, it is deflected, resulting in a very low airflow velocity and minimal impact on surrounding objects. To further disperse the airflow, the first air outlet 42 and the second air outlet 43 are located on opposite sides of the wet cleaning device 100, or they can be spaced apart. This separate arrangement of the two air outlets effectively disperses the airflow and reduces noise.

[0049] refer to Figure 5-9 The body 4 includes an upper shell 44 and a lower shell 45, both of which are integrally molded. Both the upper and lower shells can be injection molded. The body 4 also includes a handle 49, which is located on the upper shell 44 and above the suction motor 3. A receiving space 47 is defined between the upper shell 44 and the lower shell 45 (see reference). Figure 9 The space 47 is used to install a water pump, piping, steam generator, and other components. As shown in the embodiment, the wet cleaning equipment 100 also includes a recovery tank 1 and a cleaning solution tank 2, and the upper housing 44 defines an installation space 48 (see reference). Figure 7 The recycling bin 1 and the cleaning fluid tank 2 are detachably installed in the installation space 48. In the embodiment shown in the figure, the lower housing 45 is generally elliptical and defines a storage space 41. This design can effectively reduce mold costs and assembly costs.

[0050] Continue to refer to Figure 5-9 The wet cleaning device 100 also includes a motor cover 46 disposed within the body 4, which, together with the lower housing 45, defines a motor mounting cavity. A suction motor 3 is disposed within the motor mounting cavity. The motor cover 46 and the lower housing 45 together define a fourth conduit 322. A motor inlet is located at the top of the motor cover 46, and a cooling air inlet is located on either the upper housing 44 or the lower housing 45. Under the action of the suction motor 3, external cooling airflow enters the body 4 through the cooling air inlet, then enters the motor through the motor inlet to cool its internal structure. The cooled airflow then exits through the rear outlet of the motor and flows along the fourth conduit 322 to the second outlet 43, where it is discharged into the storage space 41. The suction airflow generated by the suction motor 3 carries dirt from the cleaning head 6 into the first pipe 311. The fluid undergoes gas-liquid separation in the recovery box 1. After the gas-liquid separation, the airflow flows through the impeller of the suction motor 3 and enters the second pipe 312. Then it is discharged from the first air outlet 42 into the storage space 41.

[0051] refer to Figure 9 To balance the overall weight, the recovery tank 1 is positioned between the cleaning liquid tank 2 and the suction motor 3 along the length of the wet cleaning equipment 100. This design also simplifies the piping and reduces costs.

[0052] The following describes in detail the recycling bin 1 in one embodiment. The recycling bin 1 can be applied to robotic vacuum cleaners, upright, handheld, or horizontal wet cleaning devices. (See reference) Figure 10-20 The figure discloses a recycling bin 1, which includes a first body 12 and a first cover 14. The first body 12 defines a first space 11 for containing dirt, and the first body 12 defines a first opening 13. The first cover 14 is movably (pivoting or detaching, etc.) installed on the first opening 13 to close / open the first opening 13. Users can empty the dirt in the first space 11 through the first opening 13, and at the same time, they can clean the first space 11 through the first opening 13. The first body 12 also includes a riser 15, which includes a liquid inlet 151, a liquid outlet 152, and a liquid inlet channel 153 located between the liquid inlet 151 and the liquid outlet 152. Fluid carrying dirt flows sequentially through the liquid inlet 151, the liquid inlet channel 153, and the liquid outlet 152 under the action of the suction airflow generated by the suction motor 3, and then flows out from the liquid outlet 152 into the first space 11. The recycling bin 1 also includes a gas-liquid separator 16 located near the liquid outlet 152 for gas-liquid separation of the fluid flowing out of the liquid outlet 152. The separated contaminants are stored in the containment space 47, and the separated airflow flows out of the recycling bin 1. To guide the airflow out of the recycling bin 1, the first housing 12 also includes an exhaust pipe 17, which is in fluid communication with the suction motor 3. The exhaust pipe 17 includes a first portion 171 located in the first housing 12 and a second portion 172 located in the first cover 14 (see reference). Figure 15 and 17 The first part 171 and the second part 172 together define the air inlet 173 of the vent pipe 17. The vent pipe 17 also includes an air outlet 174 and an air outlet passage 175 located between the air inlet 173 and the air outlet 174. When the liquid level in the recovery tank 1 reaches the warning line, the use of the recovery tank 1 needs to be restricted. At this time, a float 18 is installed in the recovery tank 1. (Reference) Figure 13 , 14 16-18, the float 18 is movably disposed at the air outlet 17. When the liquid level in the first space 11 reaches a preset value, the float 18 can move with the liquid level to the air inlet 173 and close at least part of the air inlet 173. At this time, the airflow is cut off and will not flow through the recovery tank 1, and dirt will not be sucked into the recovery tank 1. In a specific embodiment, the riser 15 is inclined relative to the central axis X of the suction motor 3 (see reference). Figure 9 ).

[0053] refer to Figure 15-20 When emptying recycling bin 1, if the wastewater discharge path passes through air inlet 173, wastewater may enter air inlet 173 during the emptying process and then leak onto the ground or other places through air outlet 175 (see reference). Figure 19 Therefore, in the disclosed solution, the air inlet 173 is defined by the air outlet pipe 17 and the first cover 14. In this case, when sewage is discharged, the sewage discharge path does not flow through the air inlet 173, effectively preventing sewage from entering the air outlet channel 175 (see reference). Figure 20 To further ensure that sewage does not enter the venting channel 175, the upper edge of the first pipe body 179 is not lower than the upper edge of the first box body 12.

[0054] refer to Figure 15-19 The first part 171 includes a first tube 179 integrally formed with the first housing 12. The second part 172 includes a second baffle 178 extending from the inner wall 141 of the first cover 14. The second baffle 178 and the first tube 179 together define an air inlet 173. To improve sealing performance, a sealing structure (not shown) is provided between the first tube 179 and the second baffle 178, the sealing structure being configured to prevent airflow from passing through the contact area between the first tube 179 and the second baffle 178.

[0055] Continue to refer to Figure 13 and 14 The air outlet channel 175 includes a first channel 176 and a second channel 177 located downstream of the first channel 176, with the first channel 176 and the second channel 177 forming a certain angle. The first channel 176 is substantially parallel to the riser 15. The second channel 177 is substantially perpendicular to the surface to be cleaned. To effectively reduce costs, the outer wall of the air outlet pipe 17 forms part of the outer wall of the first housing 12.

[0056] refer to Figure 10-12 To improve separation efficiency, the recovery tank 1 also includes a gas-liquid separator 16 located near the liquid outlet 152 for gas-liquid separation of the fluid flowing out of the liquid outlet 152. To facilitate cleaning of the interior of the recovery tank 1 and the gas-liquid separator 16, and to reduce costs, the gas-liquid separator 16 is disposed on the inner wall 141 of the first cover 14 and can move with the first cover 14. The gas-liquid separator 16 is detachably installed on the first cover 14, and can also be integrally formed with the first cover 14.

[0057] Continue to refer to Figure 10-12The gas-liquid separator 16 includes a first baffle 162, which, together with the inner wall 141 of part of the first cover 14, defines a fifth space, within which the liquid outlet 152 is located. The first baffle 162 is semi-annular and extends circumferentially along the riser 15. This arrangement effectively utilizes space, as the higher the gas-liquid separator 16 is positioned above the liquid surface, the smaller the force exerted by the airflow on the liquid in the first space 11 (if the airflow is too strong, it will blow away some of the liquid, which will be sucked away by the suction motor 3, affecting the motor's operation), resulting in higher gas-liquid separation efficiency. Simultaneously, this design effectively reduces costs.

[0058] Continue to refer to Figure 10-12 To further improve separation efficiency, the first baffle 162 includes multiple baffles 163 extending away from the inner wall 141, spaced apart along the circumferential direction of the riser 15. Liquid gradually accumulates at the baffles 163, condensing into water droplets that fall directly into the first space 11, as these droplets are not easily carried by the airflow. The separated gas flows through the gaps between the baffles 163 to the air inlet 173. At least a portion of the first baffle 162 is located between the liquid outlet 152 and the air inlet 173. The lowest point of the first baffle 162 in the vertical direction is lower than the lowest point of the air inlet 173. In one specific embodiment, the projection of the horizontal air inlet 173 falls entirely on the first baffle 162 (see reference). Figure 14 At this point, the airflow first flows downwards at the gas-liquid separator 16, and then turns upwards towards the inlet 173. This prevents the airflow from flowing directly towards the inlet 173, thus improving the gas-liquid separation efficiency.

[0059] In one embodiment, the recycling bin 1 includes a first housing 12 and a first cover 14. The cleaning fluid tank 2 includes a second housing 24 and a second cover 23. To facilitate cleaning of the recycling bin 1 and simultaneously adding cleaning fluid to the cleaning fluid tank 2, the cleaning fluid tank 2 and the recycling bin 1 can be integrally formed into a storage tank 101. This allows for direct filling of the cleaning fluid after cleaning the recycling bin 1. The structural design of the recycling bin 1 within the storage tank 101 can adopt the structure described in the above embodiment, and will not be detailed here.

[0060] refer to Figure 10-20The liquid storage tank 101 includes a first space 11 for containing dirt and a second space 21 for containing cleaning fluid. The liquid storage tank 101 includes a body 102 and a cover 103. The body 102 is integrally formed from a first body 12 and a second body 24. The cover 104 may be integrally formed from a first cover 14 and a second cover 23. The body defines openings, including a first opening 13 communicating with the first space 11 and a second opening 22 communicating with the second space 21. The cover is movably mounted on the openings to close / open the first opening 13 and the second opening 22. The body also includes a riser 15, which includes an inlet 151, an outlet 152, and an inlet channel 153 located between the inlet 151 and the outlet 152. Fluid flows out from the outlet 152 and enters the containing space 47. The liquid storage tank 101 includes a gas-liquid separator 16 located near the liquid outlet 152 for gas-liquid separation of the fluid flowing out of the liquid outlet 152. The gas-liquid separator 16 is disposed on the inner wall 141 of the cover and can move with the cover.

[0061] Continue to refer to Figure 10-20 The housing 102 includes an outer shell and a first partition 104 for dividing the outer shell into a first space 11 and a second space 21 (see reference). Figure 15 The first partition plate 104 and the body of the riser 15 overlap. The liquid storage tank 101 also includes an air outlet pipe 17, which includes an air inlet 173, an air outlet 174, and an air outlet channel 175 located between the air inlet 173 and the air outlet 174. The outer shell and the body of the air outlet pipe 17 overlap. An upper baffle 25 is provided at the second opening 22, and an injection port 26 is provided on the upper baffle 25 near the handle 121. When the user cleans the liquid storage tank 101, especially when emptying the dirt in the recovery tank 1, the upper baffle 25 can block some of the liquid from flowing out of the cleaning liquid tank 2. The user can add cleaning liquid into the second space 21 of the injection port 26. A second partition plate corresponding to the first partition plate 104 is provided on the cover, and the second partition plate divides the space defined by the cover into a third space 161 and a fourth space (see reference). Figure 12 The liquid storage tank 101 also includes a gas-liquid separator 16, which is disposed in the third space 161 and is integrally formed with the cover. For easy access, the tank body also includes a handle 121, and the second space 21 is located between the first space 11 and the handle 121. The riser 15 is located between the handle 121 and the vent pipe.

[0062] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A wet cleaning device, characterized in that, include: A dirt recovery system, comprising a suction motor for generating a suction airflow and a suction conduit for guiding the suction airflow; The suction pipeline includes a first pipeline located upstream of the suction motor and a second pipeline located downstream of the suction motor; the dirt recovery system also includes a cooling pipeline for cooling the suction motor, the cooling pipeline including a third pipeline located upstream of the suction motor and a fourth pipeline located downstream of the suction motor. A hose, one end of which is in fluid communication with the first conduit, and the other end of which is fitted with a cleaning head; The body has a defined receiving space for accommodating the suction motor; the body also has a defined storage space for accommodating the hose. The body is further defined with a first air outlet connected to the second pipeline and a second air outlet connected to the fourth pipeline, and the gas discharged from the first air outlet and the second air outlet enters the storage space.

2. The wet cleaning equipment as described in claim 1, characterized in that, The body includes an upper shell and a lower shell, the upper shell being a one-piece molded structure and the lower shell being a one-piece molded structure.

3. The wet cleaning equipment as described in claim 2, characterized in that, Also includes The motor cover is disposed within the body of the machine, and the motor cover and the lower housing together define a motor mounting cavity.

4. The wet cleaning equipment as described in claim 3, characterized in that, The motor cover and the lower housing together define the fourth pipeline.

5. The wet cleaning equipment as described in claim 4, characterized in that, The top of the motor cover is provided with a motor inlet, and the upper housing is provided with a cooling air inlet.

6. The wet cleaning equipment as described in any one of claims 2-5, characterized in that, The upper housing defines an installation space, and the wet cleaning equipment further includes a recycling tank and a cleaning solution tank, which are detachably installed in the installation space.

7. The wet cleaning equipment as described in claim 6, characterized in that, The recycling bin and the cleaning liquid tank are integrally formed into a liquid storage tank. Along the length of the wet cleaning equipment, the recycling bin is located between the cleaning liquid tank and the suction motor.

8. The wet cleaning equipment as described in claim 7, characterized in that, The liquid storage tank includes a tank body and a cover. A riser is installed inside the tank body. The riser includes a liquid inlet, a liquid outlet, and a liquid inlet channel located between the liquid inlet and the liquid outlet. A gas-liquid separator is installed on the cover near the liquid outlet.

9. The wet cleaning equipment as described in claim 8, characterized in that, The riser is inclined relative to the central axis of the suction motor.

10. The wet cleaning equipment as described in any one of claims 2-5, characterized in that, It also includes a handle, which is disposed on the upper housing and located above the suction motor.

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