Sewage tank and cleaning equipment

Abstract

The utility model provides a sewage tank and cleaning equipment. The sewage tank comprises a tank cover module, a tank body and a sewage inlet assembly. A dirt storage cavity is defined by the box cover module and the box body. The box cover module is provided with a suction port communicated with the dirt storage cavity. The sewage inlet assembly is arranged in the sewage storage cavity. The sewage inlet assembly comprises a sewage inlet pipe and a flow guide pipe. The flow guide pipe is communicated with the sewage inlet pipe and is provided with a first outlet and a second outlet which are communicated; the first outlet faces the bottom wall or the inner side wall of the box body, and the second outlet faces the inner side wall of the box body. When the sewage tank is in an upright state, the second outlet is higher than the first outlet. When the sewage tank is in the lying flat state, the second outlet faces the to-be-cleaned face, at least part of dirt output by the dirt inlet pipe enters the dirt storage cavity through the second outlet, so that the dirt gathered to the first outlet is divided, the dirt is prevented from moving towards one side of the suction device, the liquid inlet risk of the suction device when the cleaning equipment is used in a lying flat mode is reduced, and the cleaning efficiency is improved. Therefore, the normal use of the cleaning equipment in a lying state is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a sewage tank and cleaning equipment. Background Art

[0002] When cleaning equipment such as floor scrubbers clean the ground surface to be cleaned, they can collect the dirt on the surface to be cleaned into the sewage tank through suction. In order to reduce the risk of water entering the suction motor of the cleaning equipment, a complex air duct is usually set up in the sewage tank, but this also increases a lot of wind resistance and increases the power consumption of the suction motor. At the same time, to meet the cleaning needs of low spaces, the cleaning equipment is equipped with a lying-flat function. Since the height difference between the sewage outlet in the sewage tank and the suction port on the top of the sewage tank when lying flat is much greater than the height difference when it is tilted or upright, the sewage in the sewage tank is more likely to overcome gravity and enter the suction port connected to the suction motor when lying flat. This increases the risk of dirt in the sewage tank entering the suction motor of the cleaning equipment when the cleaning equipment is lying flat. Therefore, how to reduce the risk of dirt in the sewage tank entering the suction device of the cleaning equipment when the cleaning equipment is lying flat has become a technical problem to be solved. Utility Model Content

[0003] The embodiments of the present application provide a sewage tank and a cleaning device, which can reduce the risk of dirt in the sewage tank entering the suction device of the cleaning device when the cleaning device is lying flat for use.

[0004] In a first aspect, an embodiment of the present application provides a sewage tank for a cleaning device, wherein the cleaning device is used to clean a surface to be cleaned, and the sewage tank includes:

[0005] A box cover module having a suction port;

[0006] The box body and the box cover module are installed on the top of the box body and enclose a dirt storage cavity with the box body; the dirt storage cavity is connected to the suction port; the suction port is used to extract the gas in the dirt storage cavity to form a negative pressure environment in the dirt storage cavity;

[0007] A sewage inlet assembly is disposed within the sewage storage chamber and includes a sewage inlet pipe and a diversion pipe; one end of the diversion pipe is connected to the sewage inlet pipe, and the other end has a first outlet and a second outlet that are connected to each other, the first outlet facing the bottom wall or inner wall of the box body, and the second outlet facing the inner wall of the box body; the sewage inlet pipe is connected to the outside of the sewage storage chamber, and the sewage inlet assembly is configured to suck the dirt generated by the cleaning equipment during the cleaning process into the sewage storage chamber through the sewage inlet pipe and the diversion pipe in sequence under the action of a pressure difference;

[0008] Among them, the sewage tank has an upright state and a lying state; when the sewage tank is in the upright state, the second outlet is higher than the first outlet; when the sewage tank is in the lying state, the second outlet faces the surface to be cleaned; the gas in the sewage inlet pipe and / or part of the output dirt can enter the sewage storage chamber through the second outlet.

[0009] The sewage tank of the embodiment of the present application is provided with a first outlet on the guide pipe, so that when the cleaning device is in normal use (not lying down, such as when the cleaning device is used upright or tilted), the dirt generated during the cleaning process of the cleaning device enters the sewage inlet pipe under the action of the pressure difference, and the dirt output by the sewage inlet pipe can enter the guide pipe and be sucked in through the first outlet and stored in the sewage storage chamber. When the dirt is large, a small amount of dirt may be output from the second outlet. In addition, when the cleaning device is in normal use, part of the gas (air) that enters the sewage inlet pipe along with the dirt is output from the first outlet, and part is output from the second outlet, so that the gas entering the sewage inlet pipe can be output from the first outlet and the second outlet into the sewage storage chamber so as to be drawn out of the sewage storage chamber through the suction port. Compared with the traditional sewage tank in which the sewage inlet pipe has one outlet (first outlet), when the gas in the sewage inlet pipe is output through the first outlet and the second outlet, the second outlet at the top can increase the air output channel and reduce wind resistance. When the sewage tank is used on cleaning equipment, the suction device of the cleaning equipment can quickly extract the gas from the sewage storage chamber with the help of the suction port at the same speed, providing a higher negative pressure environment for the sewage storage chamber, reducing the power consumption of the suction device, and improving the endurance of the cleaning equipment.

[0010] Traditional cleaning equipment is used flat, with the sewage tank in this position. Dirt within the tank collects on the side of the tank facing the surface to be cleaned, below the sewage inlet pipe. If the user pushes the cleaning equipment forward to clean the surface, the dirt within the tank will move toward the side of the tank cover module due to inertia, causing a surge, which will then cause the dirt to flow toward the sewage inlet pipe. If the surge is high, some of the dirt may flow into the area between the sewage inlet pipe and the tank cover module and move toward the suction port, causing a greater risk of liquid intrusion into the suction device.

[0011] When the cleaning device of the embodiment of the present application is used in a flat position, since the guide tube is provided with a second outlet, and the second outlet is directed toward the surface to be cleaned when the sewage tank is in a flat position, the gas in the sewage inlet pipe and / or part of the output dirt can be output through the second outlet. Hereinafter, the gas and dirt in the sewage inlet pipe are collectively referred to as substances. The substance can be gas, dirt, or a mixture of gas and dirt. The dirt includes impurities and fluid, and the fluid can be sewage. When the substance in the sewage inlet pipe is output through the second outlet, the dirt in the substance can merge with the dirt stored in the sewage storage chamber, and the gas in the substance can flow toward the suction port under the action of the suction device, so that a negative pressure environment is maintained in the sewage storage chamber. Moreover, when the material in the sewage inlet pipe is discharged through the second outlet, the material will first move downward and diffuse under the action of inertia, which can suppress the surge height of the surge occurring below the sewage inlet pipe, so as to prevent the dirt in the sewage tank from flowing into the gap between the sewage inlet pipe and the box cover module, and can greatly reduce the probability of dirt moving toward one side of the suction device, reduce the risk of liquid inflow to the suction device, and ensure the normal use of the cleaning equipment in a lying state.

[0012] When the sewage tank is in a flat state, during the process of pushing forward and pulling back, the sewage surge in the sewage tank is mainly divided into the following two situations: surge in the direction away from the suction port and surge in the direction close to the suction port; in the case of surge in the direction away from the air inlet, since the sewage moves away from the suction port, the rising or splashing sewage is far away from the suction port, and the risk of water entering the suction port is relatively small at this time; in the case of surge in the direction close to the air inlet, since the sewage moves toward the suction port, the sewage is likely to splash or rise near the suction port. Since the splashed or rising sewage is relatively close to the suction port at this time, it is easy to be sucked into the suction port, thereby increasing the risk of water entering the suction motor. However, the provision of the second outlet in this embodiment can greatly reduce the risk of water entering the suction motor. This water inflow situation occurs; in this embodiment, the second outlet is facing downward when in a lying state, and part of the sewage and air sucked in the sewage inlet pipe is output from the first outlet, and the other part is output from the second outlet. The sewage and air output from the second outlet will first move downward for a while under the action of inertia and gravity. At this time, if there is sewage splashed or rising due to the surge, it will meet the sewage and air output from the second outlet. The sewage and air output from the second outlet can continuously block and suppress the splashed or rising sewage, so that the splashed or rising sewage is blown or knocked down, thereby suppressing the surge height in the direction close to the suction port, thereby reducing the risk of water inflow to the suction port and ensuring the safety of the suction motor.

[0013] In some embodiments, the diversion tube includes a first diversion channel and a second diversion channel, the inlet ends of the first diversion channel and the second diversion channel are both connected to the sewage inlet pipe, the first outlet is the outlet end of the first diversion channel, and the second outlet is the outlet end of the second diversion channel, so that the first outlet and the second outlet are connected. In addition, since the inlet ends of the first diversion channel and the second diversion channel are both connected to the sewage inlet pipe, part of the material output from the sewage inlet pipe can enter the second diversion channel through the first diversion channel and be output to the sewage storage chamber through the second outlet, so that the fluid in the material can merge with the dirt stored in the sewage storage chamber, and the gas in the material can flow toward the suction port, so that a negative pressure environment is maintained in the sewage storage chamber.

[0014] In some embodiments, the first and second diversion channels have at least a partial overlap or at least a portion of a shared channel wall, thereby connecting the first outlet and the second outlet. Furthermore, when the sewage inlet pipe is sucking sewage, a portion of the channel wall of the diversion channel can prevent impurities in the material in the sewage inlet pipe from entering the second diversion channel, thereby allowing the fluid in the material in the sewage inlet pipe to flow smoothly within the second diversion channel.

[0015] In some embodiments, the opening area of ​​the first outlet is larger than the opening area of ​​the second outlet to ensure that the material in the sewage inlet pipe flows faster at the second outlet than at the first outlet. In this way, the water vapor (formed by a small amount of fluid entrained by the gas) in the material in the sewage inlet pipe will rub against the channel wall of the second diversion channel when it is discharged through the second outlet, which can accelerate the sedimentation rate and effect of the fluid in the water vapor, so that more fluid in the material can enter the sewage storage chamber through the second outlet, achieving gas-liquid separation of the water vapor.

[0016] In some embodiments, the second diversion channel is located on one side of the first diversion channel in a first direction, where the first direction is the direction of the box body toward the box cover module, so that when the sewage tank is in an upright state, the second outlet can be higher than the first outlet.

[0017] In some embodiments, the channel arm of the guide tube includes a first guide plate and a second guide plate, wherein a portion of the second guide plate is located on one side of the first guide plate in the first direction and has a first overlapping area with the first guide plate;

[0018] The second guide channel is formed in the first overlapping area, and the channel arms of the guide tube outside the first overlapping area form the first guide channel; the second outlet is located at the end where the second guide plate overlaps with the first guide plate, and the first outlet is located at the end where the second guide plate does not overlap with the first guide plate, so that the first guide channel and the second guide channel are connected, and at the same time, the connection between the first outlet and the second outlet can be achieved.

[0019] In some embodiments, the first guide plate and the second guide plate have a first spacing in the first overlapping area, and the opening size of the first outlet is larger than the first spacing to ensure that the opening area of ​​the first outlet is larger than the opening area of ​​the second outlet.

[0020] In some embodiments, one end of the second guide plate overlapping the first guide plate extends along the surface of the first guide plate toward the inner wall of the box, and a channel is provided between the one end of the second guide plate overlapping the first guide plate and the inner wall of the box.

[0021] By extending one end where the second guide plate overlaps with the first guide plate, the length of the second guide channel can be increased, and the second outlet can be directed toward the inner wall of the box body, so that when the sewage tank is in a flat state, the second outlet can be directed toward the surface to be cleaned.

[0022] When the water tank is in a flat position and the material discharged from the sewage inlet pipe enters the second diversion channel, the second diversion plate will exert an inertial force on the water vapor in the material, causing the fluid in the water vapor to settle under the action of inertia. When discharged through the second outlet, it is very likely to come into contact with the dirt originally stored in the sewage storage chamber. Meanwhile, the gas in the water vapor will move toward the suction port and be drawn out of the sewage storage chamber under the action of the suction device, achieving gas-liquid separation of the water vapor.

[0023] When the length of the second conducting channel increases, the sedimentation effect of the second guide plate on the fluid in the water vapor can be improved, so as to enhance the gas-liquid separation effect of the water vapor, and enable more fluid in the water vapor to settle and flow into the dirt originally stored in the dirt storage chamber, so as to further reduce the risk of liquid ingress to the suction device.

[0024] In some embodiments, the end of the second guide plate that does not overlap with the first guide plate extends toward the bottom wall or inner wall of the box body, so that the first outlet faces the bottom wall or inner wall of the box body, so that when the sewage tank is in an upright position or a flat position, the dirt output from the sewage inlet pipe can enter the bottom of the sewage storage chamber through the first outlet.

[0025] In some embodiments, the overlapping end of the first guide plate and the second guide plate is an overlapping end, the overlapping end extends toward one side of the second guide plate, and along the second direction, there is a second distance between the overlapping end and the second guide plate;

[0026] The second direction is perpendicular to the first direction.

[0027] The positions of the first guide plate and the second guide plate corresponding to the second spacing can form the inlet end of the second guide channel, so as to realize the communication between the inlet end of the second guide channel and the interior of the first guide channel, so that the inlet end of the second guide channel can be connected with the sewage inlet pipe through the second guide channel.

[0028] In some embodiments, the sewage inlet pipe has a sewage discharge end connected to the guide pipe, and along the second direction, the overlapping end passes over the sewage discharge end so that the overlapping end of the first guide plate can be closer to the first outlet in the second direction, so that the material output from the sewage discharge end can be better guided to the first outlet through the first guide plate, and output through the first outlet and stored in the sewage storage chamber.

[0029] In some embodiments, the overlapping end is located on one side of the first outlet in the first direction, and a third distance is provided between the overlapping end and the first outlet, so that in the first direction, there is a height difference between the overlapping end and the first outlet within the sewage storage chamber. This ensures that the first outlet has a larger opening area so that substances in the sewage inlet pipe can quickly enter the sewage storage chamber through the first outlet.

[0030] In some embodiments, at least one of the first guide plate and the second guide plate is a smooth transition structure.

[0031] The smooth transition structure of the first guide plate and the second guide plate can be expressed as a curved surface, such as an arc surface or a spherical surface. Compared with a flat plate, when at least one of the first guide plate and the second guide plate is a smooth transition structure, by controlling parameters such as the radian and curvature, the material in the sewage inlet pipe can flow better to the first outlet or the second outlet under the guidance of the guide plate.

[0032] In some embodiments, the channel arm of the guide tube also includes a connecting plate, which is connected to both sides of the first guide plate and the second guide plate respectively to form a guide tube together with the first guide plate and the second guide plate. The connecting plate is respectively connected to the side ends of the first guide plate and the second guide plate to form a first guide channel and a second guide channel. The first guide channel and the second guide channel are at least partially overlapped and shared to ensure the closure of the guide tube in the circumferential direction of the channel. The material (such as dirt) output from the sewage inlet pipe will not splash to the outside of the guide tube when flowing in the guide tube.

[0033] In some embodiments, the tank body has a first side and a second side disposed opposite to each other, and when the sewage tank is in a flat position, the first side is adjacent to the surface to be cleaned;

[0034] One end of the sewage inlet pipe adjacent to the guide pipe is inclined toward the first side relative to the central axis of the box body, so that the second outlet is closer to the surface to be cleaned when the sewage tank is in a flat state, so that the fluid in the material output by the sewage inlet pipe through the second outlet can more easily flow into the dirt stored in the sewage storage chamber, further reducing the risk of liquid ingress to the suction device.

[0035] In some embodiments, the sewage inlet pipe is divided into a first section and a second section. The first section is connected to the box cover module, and the second section is connected to the box body. When the box cover module is installed on the box body, the first and second sections are detachably connected. When the box cover module is separated from the box body, the first and second sections are separated.

[0036] In this way, the total length of the sewage inlet pipe can be flexibly adjusted according to the height of the sewage tank, so that the installation height of the sewage discharge end of all sewage inlet pipes in the sewage storage cavity can reach the height required by the sewage tank design, making the sewage inlet assembly suitable for sewage tanks of different sizes.

[0037] In some embodiments, the sewage inlet pipes are installed on the box body, and the diversion pipes are installed on the box body or the box cover module. While ensuring that the diversion pipes and the sewage inlet pipes are installed in the sewage storage cavity, the setting of the diversion pipes in the sewage tank can also be more diversified.

[0038] In some embodiments, a portion of the two or more sewage inlet pipes is installed on the box body, and the other portion is connected to the diversion pipe and installed on the side of the box cover module facing the box body, so as to ensure that the diversion pipe and the sewage inlet pipe are installed in the sewage storage cavity while also making the arrangement of the sewage inlet pipe and the diversion pipe in the sewage tank more diversified.

[0039] In some embodiments, the box cover module includes a box cover and a water retaining structure, the box cover is installed on the top of the box body; the water retaining structure includes a mounting portion and a water retaining portion, the mounting portion is installed in the box cover, and the mounting portion is provided with a suction port; the water retaining portion includes a first water retaining plate and a second water retaining plate, the first water retaining plate is connected to a side of the mounting portion away from the box cover, and is provided on a side of the suction port facing the second outlet; an end of the first water retaining plate away from the box cover extends toward the bottom of the box body, and has a gap with an end of the guide pipe facing the box cover module; the second water retaining plate is provided on a side of the first water retaining plate facing the suction port, so as to block the side of the suction port facing the sewage inlet pipe;

[0040] When the sewage tank is in a lying state, the height of the suction port is greater than the height of the first water baffle portion, and the height of the first water baffle portion is greater than the height of the second outlet.

[0041] When the cleaning device lies flat, the dirt in the sewage tank gathers on the side of the tank facing the surface to be cleaned, located below the first water baffle and blocked by the first water baffle. However, when the user pushes the cleaning device forward, the dirt in the sewage tank moves toward the side of the sewage inlet pipe, causing a surge. During this surge, the dirt flows into the area between the first water baffle and the diversion pipe. At this time, the material discharged through the second outlet can suppress the surge height below the sewage inlet pipe, reducing the risk of liquid intrusion into the suction device.

[0042] By limiting the heights of the suction port, the first water baffle and the second outlet when the sewage tank is in a flat state, if some dirt in the sewage tank surges into the area between the first water baffle and the guide pipe during a surge and flows toward the suction port, it will first be blocked by the second water baffle, thereby further reducing the risk of liquid intrusion into the suction device.

[0043] In some embodiments, an overflow channel is provided between the end of the flow guide tube having the first outlet and the inner wall of the dirt storage chamber;

[0044] A blocking member is provided on the inner wall of the dirt storage chamber, which blocks the side of the overflow channel toward the box cover module and is provided on the side of the suction port toward the guide pipe to prevent dirt from flowing toward the side of the suction port, further reducing the risk of liquid ingress to the suction device.

[0045] In some embodiments, the blocking member and the first water baffle are located on opposite sides of the dirt storage chamber, with the end of the blocking member extending toward one side of the first water baffle and having a gap between the end and the first water baffle to enhance the blocking effect of the blocking member on dirt. Furthermore, the gap between the end of the blocking member and the first water baffle prevents the extension of the blocking member from interfering with the installation of the box cover module on the top of the box body.

[0046] The second water baffle is located on a side of the blocking member facing away from the flow guide pipe and has a second overlapping area with the blocking member.

[0047] On the basis of the blocking member, the second water baffle is provided to block dirt from passing over the blocking member, thereby further blocking the dirt from flowing toward one side of the suction device, thereby further reducing the risk of liquid intrusion into the suction device.

[0048] In a second aspect, an embodiment of the present application further provides a sewage tank for a cleaning device, wherein the cleaning device is used to clean a surface to be cleaned, and the sewage tank includes:

[0049] A box cover module having a suction port;

[0050] The box body and the box cover module are installed on the top of the box body and enclose a dirt storage cavity with the box body; the dirt storage cavity is connected to the suction port, and the suction port is used to extract the gas in the dirt storage cavity to form a negative pressure environment in the dirt storage cavity;

[0051] A sewage inlet assembly is disposed in the sewage storage chamber; the sewage inlet assembly includes a sewage inlet pipe, a guide pipe, and a second guide plate; one end of the guide pipe is connected to the sewage inlet pipe, and the other end has a first outlet, the first outlet facing the bottom wall or inner wall of the box body; the second guide plate blocks at least a portion of the channel wall on the side of the guide pipe facing the box cover module, and a second guide channel is formed between the second guide plate and the guide pipe; the second guide channel is connected to the guide pipe and has a second outlet; the second outlet faces the inner wall of the sewage storage chamber; the sewage inlet assembly is configured to suck dirt generated by the cleaning device during cleaning into the sewage storage chamber through the sewage inlet pipe and the guide pipe in sequence under the action of a pressure difference;

[0052] Among them, the sewage tank has an upright state and a lying state; when the sewage tank is in the upright state, the second outlet is higher than the first outlet; when the sewage tank is in the lying state, the second outlet faces the surface to be cleaned, and the gas in the sewage inlet pipe and / or part of the output dirt enters the sewage storage chamber through the second outlet.

[0053] Similar to the sewage tank provided in the first aspect of this application, the sewage tank provided in the second aspect of this application has a first outlet and a second outlet. This allows, when the cleaning device is in normal use, the dirt output from the sewage inlet pipe to enter the diversion pipe, be sucked in through the first outlet, and stored in the dirt storage chamber. When the dirt is heavy, a small amount of dirt may be output from the second outlet. Furthermore, when the cleaning device is in normal use, it can also increase the air output channel, reduce wind resistance, and improve the endurance of the cleaning device.

[0054] In addition, since the second outlet of the sewage tank provided in the second aspect of the present application is directed toward the surface to be cleaned when the sewage tank is also in a flat state, when the material in the sewage inlet pipe is discharged through the second outlet, the surge height of the surge occurring below the sewage inlet pipe can also be suppressed to avoid the dirt in the sewage tank from flowing into the area between the sewage inlet pipe and the box cover module, which can greatly reduce the probability of dirt moving toward one side of the suction device and reduce the risk of liquid inflow to the suction device, thereby ensuring the normal use of the cleaning equipment in a flat state.

[0055] In some embodiments, the opening area of ​​the first outlet is larger than the opening area of ​​the second outlet to ensure that the flow rate of the substance in the sewage inlet pipe at the second outlet is faster than that at the first outlet. It can also accelerate the sedimentation rate and effect of the fluid in the water vapor, so that more fluid can enter the sewage storage chamber through the second outlet, thereby realizing gas-liquid separation of water vapor.

[0056] In some embodiments, there is a first distance between the second guide plate and a portion of the channel wall of the guide tube, and the opening size of the first outlet is larger than the first distance to ensure that the opening area of ​​the first outlet is larger than the opening area of ​​the second outlet.

[0057] In some embodiments, the guide tube has a communication opening on a side facing the box cover module, the second guide plate blocks the communication opening, and a second guide channel is formed between the second guide plate and a portion of the channel arm of the guide tube.

[0058] By setting the communicating port, the second guiding channel is connected to the first guiding channel, so that the substances in the sewage inlet pipe can enter the second guiding channel through the communicating port and be discharged from the second outlet.

[0059] In some embodiments, the guide tube has a first guide plate on a side facing the box cover module, the communication port is provided on the first guide plate, and the second guide plate blocks the position of the first guide plate corresponding to the communication port, so that the second guide plate and the first guide plate can form a second guide channel. At the same time, it can be ensured that the communication port is located on the channel wall of the second guide channel, so that the communication port can connect the second guide channel with the first guide channel.

[0060] The first outlet is located at an end of the first guide plate away from the sewage inlet pipe, and the second outlet is formed on a side of the second guide plate away from the first outlet.

[0061] In some embodiments, at least one of the first guide plate and the second guide plate is a curved plate.

[0062] Compared with non-arc plates, when at least one of the first guide plate and the second guide plate is an arc plate, by controlling the curvature of the arc plate, the material in the sewage inlet pipe can flow better to the first outlet or the second outlet under the guidance of the arc plate.

[0063] In some embodiments, the second guide plate is mounted on the box body or the box cover module. This ensures that the guide pipe and the sewage inlet pipe are installed in the sewage storage cavity while also making the installation of the guide pipe in the sewage tank more diverse.

[0064] In a third aspect, an embodiment of the present application further provides a cleaning device, comprising a cleaning module, a suction device, and a sewage tank as described in any of the above embodiments, wherein the sewage tank has a suction port and a sewage storage cavity, and the suction port is connected to the sewage storage cavity;

[0065] The suction device is located on a side of the sewage tank where the suction port is provided, and is fixed relative to the sewage tank; the suction device is configured to suck the suction port to extract the gas in the sewage storage chamber to form a negative pressure environment in the sewage storage chamber;

[0066] The sewage tank can be rotated relative to the cleaning module so that the sewage tank can be switched between a lying state and an upright state.

[0067] The cleaning device of the embodiment of the present application adopts a sewage tank as in any of the above embodiments, which can reduce the risk of liquid entering the suction device when the cleaning device is lying flat for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0069] Figure 1 A schematic structural diagram of a cleaning device provided in an embodiment of the present application;

[0070] Figure 2 for Figure 1 Schematic diagram of the circuit connection and water connection of the cleaning equipment;

[0071] Figure 3 A schematic structural diagram of another cleaning device provided in an embodiment of the present application;

[0072] Figure 4 A schematic structural diagram of a first type of sewage tank provided in an embodiment of the present application;

[0073] Figure 5a An exploded schematic diagram of the first sewage tank provided in an embodiment of the present application;

[0074] Figure 5b for Figure 5a Schematic diagram of the structure of the middle box cover module from another perspective;

[0075] Figure 6 for Figure 4 The cross section of the first type of sewage tank in the AA direction Figure 1 ;

[0076] Figure 7 for Figure 4 The cross section of the first type of sewage tank in the AA direction Figure 2 ;

[0077] Figure 8 for Figure 7 A schematic structural diagram of the first type of sewage tank from another perspective;

[0078] Figure 9 for Figure 8 Schematic diagram of the structure of the middle box from the first perspective;

[0079] Figure 10 for Figure 8 Schematic diagram of the structure of the middle box from the second perspective;

[0080] Figure 11 for Figure 10 Schematic diagram of the structure of the central guide tube from the first perspective;

[0081] Figure 12 for Figure 10 Schematic diagram of the structure of the middle guide tube from the second perspective;

[0082] Figure 13 A schematic structural diagram of a flow guide tube provided in an embodiment of the present application;

[0083] Figure 14 A schematic diagram of the interior of a second sewage tank provided in an embodiment of the present application;

[0084] Figure 15 for Figure 14 Schematic diagram of the structure of the sewage inlet component in the second sewage tank.

[0085] Reference numerals:

[0086] 100- Cleaning equipment;

[0087] 1- Clean the module;

[0088] 2-Clean water tank;

[0089] 3- Water pump;

[0090] 4- Walking mechanism;

[0091] 5-Sewage tank;

[0092] 50-sewage storage chamber;

[0093] 51-Box cover module; 511-Box cover; 5111-Suction port; 512-Water retaining structure; 5121-Mounting portion; 5122-Water retaining portion; 5123-First water retaining plate; 5124-Second water retaining plate; 513-Filter element;

[0094] 52-box; 521-first side; 522-second side;

[0095] 53-sewage inlet pipe; 531-sewage outlet;

[0096] 54- flow guide tube; 541- first outlet; 542- second outlet; 543- first flow guide channel; 544- second flow guide channel; 545- first flow guide plate; 5451- overlapping end; 546- second flow guide plate; 547- connecting plate;

[0097] 55-channel;

[0098] 56- Overflow channel;

[0099] 57-blocking member;

[0100] 6- Suction device;

[0101] 200-Surface to be cleaned. DETAILED DESCRIPTION

[0102] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0103] Embodiments of the present application provide a cleaning device. The cleaning device is used to clean an object to be cleaned. For example, the cleaning device may include a floor scrubber, a desktop cleaning device, or other cleaning machine capable of cleaning a surface to be cleaned. Depending on the type of cleaning device, the surface to be cleaned may also vary. For example, when the cleaning device is a floor scrubber, the surface to be cleaned may be the ground, for example. For another example, when the desktop cleaning device is a floor scrubber, the surface to be cleaned may be a tabletop, a countertop, or the like.

[0104] Figure 1 1 shows a schematic structural diagram of a cleaning device 100. Figure 1 The cleaning device 100 is shown as a tabletop cleaning device. Figure 2 Shown Figure 1 Schematic diagram of circuit connection and water connection of cleaning equipment 100.

[0105] The following combination Figure 1 and Figure 2 The structure and cleaning principle of the cleaning device 100 are further explained.

[0106] See also Figure 1 As shown, when the cleaning device 100 is a desktop cleaning device, the cleaning device 100 may include a cleaning module 1 and a clean water tank 2. The cleaning module 1 includes a cleaning member and a mounting base. The cleaning member is mounted on the mounting base. When the cleaning device 100 is in operation, the cleaning member contacts the surface to be cleaned 200. The clean water tank 2 is mounted on the side of the cleaning module 1 away from the surface to be cleaned 200.

[0107] See also Figure 2 Combined with Figure 1 As shown, the clean water tank 2 can supply clean water to the cleaning member or the surface to be cleaned 200, so that the cleaning member can better clean the surface to be cleaned 200. When cleaning the surface to be cleaned 200, the cleaning mechanism also absorbs impurities on the surface to be cleaned 200. The impurities may include paper scraps, food crumbs, hair, etc.

[0108] The cleaning device 100 further includes a water pump 3, which can pump the clean water in the clean water tank 2 to the cleaning module 1. The installation position of the water pump 3 in the cleaning device 100 can be determined according to the structure of the existing cleaning device 100, which will not be repeated here.

[0109] Continue to see Figure 2 The cleaning device 100 may include a traveling mechanism 4. The cleaning module 1 is mounted on the traveling mechanism 4. When the cleaning device 100 is in operation, a user may act on the cleaning device 100, and the traveling mechanism 4 may drive the cleaning device 100 in different directions, thereby cleaning the surface 200 to be cleaned via the cleaning module 1.

[0110] See also Figure 2 Combined with Figure 1 As shown, the cleaning device 100 may include a sewage tank 5. The sewage tank 5 is also installed on the side of the cleaning module 1 away from the surface to be cleaned 200. The sewage tank 5 has a suction port 5111 and a dirt storage chamber 50. The suction port 5111 is located at the top of the sewage tank 5 and is connected to the dirt storage chamber 50. The suction port 5111 is used to extract the gas in the dirt storage chamber 50 to form a negative pressure environment in the dirt storage chamber 50, so that the dirt in the cleaning process of the cleaning device 100 can be sucked into the dirt storage chamber 50 under the action of the pressure difference for centralized storage. In this way, the user can centrally clean the dirt in the sewage tank 5 after the cleaning device 100 completes the cleaning operation. The top of the sewage tank 5 refers to the end of the sewage tank 5 away from the cleaning module 1. Correspondingly, the top of the sewage tank 5 refers to the end of the sewage tank 5 close to the cleaning module 1.

[0111] It should be noted that the dirt in the cleaning process may include a mixture of the impurities mentioned above and the dirt generated in the cleaning process.

[0112] Continue to see Figure 2 Combined with Figure 1 The cleaning device 100 may include a suction device 6. For example, the suction device 6 may be a suction pump. The suction device 6 is located on a side of the sewage tank 5 where the suction port 5111 is provided, and is fixed relative to the sewage tank 5. In other words, the positions of the suction device 6 and the sewage tank 5 do not shift relative to each other on the cleaning device 100. The suction device 6 is configured to draw suction from the suction port 5111, extracting the gas in the sewage storage chamber 50 to form a negative pressure environment in the sewage storage chamber 50, so that the dirt generated during the cleaning process of the cleaning device 100 can be sucked into the sewage storage chamber 50 under the action of the pressure difference for centralized storage.

[0113] The cleaning device 100 may further include a power module and a control module. The power module may be electrically connected to each electrical component to provide electrical energy to each electrical component. The control module may be electrically connected to each electrical component to control the opening and closing of each electrical component and other operating states. For example, the electrical components may include a walking mechanism 4, a suction device 6, a water pump 3, etc. The location of the power module and the control module in the cleaning device 100 can be determined based on the existing cleaning equipment and will not be described in detail in the embodiments of the present application.

[0114] Figure 3 This is a schematic structural diagram of another cleaning device 100 provided in an embodiment of the present application. Figure 3 The cleaning device 100 shown in FIG. 1 is a floor scrubber. Figure 3 As shown, the floor scrubber also includes the cleaning module 1, clean water tank 2, walking mechanism 4, sewage tank 5, suction device 6, power module and control module mentioned above. For details, please refer to the relevant description above and will not be repeated here.

[0115] The structure of the cleaning device 100 is further described below using a floor scrubber as an example.

[0116] To meet the needs of cleaning low spaces (such as under beds and sofas), the cleaning device 100 is equipped with a lay-flat function. For example, when the cleaning device 100 is in a lay-flat position, it can lie flat at a 180-degree angle, allowing the cleaning device 100 to be pushed and pulled back and forth across the surface 200 to be cleaned. It should be noted that the use of the cleaning device 100 in a lay-flat position can include scenarios where the user pushes the cleaning device 100 forward or backward.

[0117] Continue to see Figure 3 In order to meet the need of using the cleaning device 100 in a lying position, the sewage tank 5, the clean water tank 2, the suction device 6, etc. of the cleaning device 100 can be rotated relative to the cleaning module 1, so that the cleaning device 100 can be switched between a lying state and an upright state.

[0118] Figure 3 The cleaning device 100 is shown in an upright position. Figure 3 As shown, when the cleaning device 100 is in an upright position, the cleaning device 100, except for the traveling mechanism 4 and the cleaning module 1 (such as the sewage tank 5), stands on the surface to be cleaned 200. At this time, the sewage tank 5 is also in an upright position, the suction port 5111 of the sewage tank 5 is away from the surface to be cleaned 200, and the suction device 6 is located above the suction port 5111.

[0119] Accordingly, when the cleaning device 100 is in a flat position, the cleaning device 100, except for the traveling mechanism 4 and the cleaning module 1 (such as the sewage tank 5), can lie flat at 180 degrees relative to the surface to be cleaned 200. At this time, the suction port 5111 of the sewage tank 5 and the suction device 6 are both close to the surface to be cleaned 200.

[0120] The sewage tank 5 can rotate relative to the cleaning module 1, so that when the cleaning device 100 switches between the lying state and the upright state, the sewage tank 5 can also switch between the lying state and the upright state at the same time.

[0121] In the prior art, since the cleaning device, except for the travel mechanism and cleaning module (e.g., the sewage tank), can lie flat at a 180-degree angle relative to the surface being cleaned, the sewage tank's suction port and suction device are both close to the surface being cleaned. When the cleaning device is used flat, there is a risk that dirt in the sewage tank will enter the suction device 6. If dirt enters the suction device, it will affect the normal operation of the cleaning device.

[0122] Therefore, how to reduce the risk of dirt in the sewage tank entering the suction device when the cleaning equipment is used in a flat position has become a technical problem to be solved.

[0123] To solve the above problem, the applicant studied the reason why the dirt in the sewage tank enters the suction device when the cleaning device in the related art is used in a flat position. The applicant found that when the cleaning device in the related art is used in a flat position and the user pulls the cleaning device in the related art backward, the dirt in the sewage tank will move toward the side of the sewage tank close to the cleaning module 1 under the action of inertia, and the risk of entering the suction device is relatively low. However, when the cleaning device in the related art is used in a flat position and the user pushes the cleaning device in the related art forward, the dirt in the sewage tank will surge under the action of inertia. As the surge height continues to increase, the dirt will move toward one side of the suction port, making the dirt in the sewage tank at risk of entering the suction device.

[0124] Therefore, when the cleaning device is used in a flat position and the user pushes the cleaning device forward, there is a higher risk of dirt entering the suction device. Therefore, the main technical problem will focus on how to reduce the risk of dirt in the sewage tank entering the suction device when the cleaning device is used in a flat position and the user pushes the cleaning device forward.

[0125] In view of this, an embodiment of the present application also provides a sewage tank for cleaning equipment. Through the arrangement of a sewage inlet assembly in the sewage tank, the sewage inlet assembly includes a sewage inlet pipe and a guide pipe connected to the sewage inlet pipe, and the guide pipe has a first outlet and a second outlet. The first outlet faces the bottom wall or inner wall of the box body of the sewage tank, and the second outlet faces the inner wall of the box body. When the sewage tank is in a flat state, the second outlet faces the surface to be cleaned, so that at least part of the dirt output by the sewage inlet pipe can enter the dirt storage chamber through the second outlet, and the surge height of the surge can be suppressed to prevent the dirt in the sewage tank from flowing into the area between the sewage inlet pipe and the box cover module. The risk of dirt in the sewage tank entering the suction device (the risk of liquid entering the suction device) can be reduced to ensure the normal use of the cleaning equipment in a flat state.

[0126] It should be noted that the embodiment of the present application provides two sewage tanks with different structures, namely a first sewage tank and a second sewage tank.

[0127] The structure of the first sewage tank will be further described below with reference to the accompanying drawings.

[0128] Figure 4 A schematic structural diagram of a first type of sewage tank is shown. Figure 5a An exploded schematic diagram of the first type of sewage tank is shown.

[0129] See also Figure 4 and Figure 5a As shown, the sewage tank 5 includes a cover module 51 and a tank body 52. ​​The cover module 51 is mounted on top of the tank body 52 and, together with the tank body 52, forms a sewage storage chamber 50 (not shown). The cover module 51 has a suction port 5111. The sewage storage chamber 50 is connected to the suction port 5111. The suction port 5111 is used to extract gas from the sewage storage chamber 50, thereby creating a negative pressure environment in the sewage storage chamber 50.

[0130] Figure 5b Shown Figure 5a Schematic diagram of the structure of the middle box cover module from another perspective.

[0131] See also Figure 5a and Figure 5b As shown, the tank cover module 51 includes a tank cover 511. The tank cover 511 is mounted on the top of the tank body 52. ​​A sealing structure may be provided between the tank cover 511 and the inner sidewall of the tank body 52 to ensure a tight seal between the sewage tank 5 and the tank cover 511. For example, the sealing structure may be a sealing ring. The top of the tank body 52 can be understood as the end of the sewage tank 5 that is away from the cleaning module 1 when the sewage tank 5 is used in the cleaning device 100. The side where the tank cover module 51 is located forms the top of the sewage tank 5.

[0132] See also Figure 5a and Figure 5bAs shown, the box cover module 51 also includes a water retaining structure 512. A portion of the water retaining structure 512 is mounted on the box cover 511, while the other portion is located within the box body 52. ​​This structure prevents dirt from moving through the suction port 5111 toward the suction device 6 when the cleaning device is in use (either lying flat or in normal use), thereby preventing damage to the suction device 6. The water retaining structure 512 is provided with the suction port 5111 on the structure mounted on the box cover 511. The structure of the water retaining structure 512 is described below.

[0133] It should be noted that the normal use of the cleaning device 100 mentioned above refers to a non-lying state of use of the cleaning device 100. For example, during normal use, the cleaning device 100 is used upright or tilted (a state between upright and lying flat). Accordingly, the sewage tank 5 can be in an upright state, or the sewage tank 5 can be in a tilted state between the upright and lying flat states.

[0134] Continue to see Figure 5a and Figure 5b In some embodiments, the box cover module 51 may include a filter element 513 . The filter element 513 may be installed on the box cover 511 to filter the gas entering the suction device 6 through the suction port 5111 .

[0135] It should be noted that the filter element 513 is a module including a filter net. The structure of the filter element 513 and the installation method on the box cover 511 can be determined according to the existing cleaning equipment 100 and will not be described in detail here.

[0136] Figure 6 and Figure 7 Shown respectively Figure 4 Cross-sectional views of the first type of sewage tank in the AA direction from different perspectives.

[0137] See also Figure 6 and Figure 7 As shown, the sewage tank 5 further includes a sewage inlet assembly. The sewage inlet assembly is arranged in the sewage storage cavity 50 to achieve the arrangement of the sewage inlet assembly in the sewage tank 5.

[0138] Continue to see Figure 6 and Figure 7 For the first type of sewage tank, the sewage inlet assembly may include a sewage inlet pipe 53 and a flow guide pipe 54. The flow guide pipe 54 is connected to the sewage inlet pipe 53 at one end and has a first outlet 541 and a second outlet 542 at the other end. The first outlet 541 faces the bottom wall or inner wall of the tank body 52. ​​The second outlet 542 faces the inner wall of the tank body 52. ​​The sewage inlet pipe 53 communicates with the exterior of the sewage storage chamber 50.

[0139] The dirt inlet assembly is configured to suck the dirt generated during the cleaning process of the cleaning device 100 into the dirt storage chamber 50 through the dirt inlet pipe 53 and the guide pipe 54 in sequence under the action of pressure difference, so that the dirt generated during the cleaning process of the cleaning device 100 can be stored in the dirt storage chamber 50 to facilitate subsequent cleaning by the user.

[0140] It should be noted that the suction device 6 can suck the suction port 5111, and some gas in the storage chamber can be sucked out of the sewage tank 5 through the second outlet 542 and enter the suction device 6, so that the sewage tank 5 forms a pressure difference inside and outside the sewage storage chamber 50, and a negative pressure environment is formed in the sewage storage chamber 50, so that the sewage inlet component can suck the dirt generated during the cleaning process of the cleaning equipment 100 into the sewage storage chamber 50 through the sewage inlet pipe 53 and the diversion pipe 54 in sequence under the action of the pressure difference.

[0141] The sewage inlet pipe 53 is connected to the outside of the sewage storage chamber 50 so that the dirt generated during the cleaning process of the cleaning device 100 can enter the guide pipe 54 through the sewage inlet pipe 53 .

[0142] Figure 8 Shown Figure 7 The first type of sewage tank is shown in another perspective. Figure 7 and Figure 8 As shown, the sewage tank 5 as described above has an upright state and a lying state.

[0143] Continue to see Figure 7 When the sewage tank 5 is in an upright position, the first outlet 541 can be directed toward the surface to be cleaned 200, and the second outlet 542 can be higher than the first outlet 541. At this time, the first outlet 541 can be directed toward the surface to be cleaned 200. When the cleaning device 100 is in normal use, the dirt generated during the cleaning process of the cleaning device 100 enters the sewage inlet pipe 53 under the action of the pressure difference. The dirt output from the sewage inlet pipe 53 can enter the diversion pipe 54 and be sucked in through the first outlet 541 and stored in the sewage storage chamber 50. At this time, if there is a lot of dirt, a small amount of dirt may be output from the second outlet 542 and stored in the sewage storage chamber 50.

[0144] As the cleaning device 100 continues to be used, the amount of dirt stored in the dirt storage chamber 50 gradually increases. Since there is a large height difference between the first outlet 541 and the suction device 6 in the direction perpendicular to the surface to be cleaned 200, when the user pushes the cleaning device 100 forward for use, the dirt stored in the dirt storage chamber 50 will not flow to the end of the sewage tank 5 where the suction port 5111 is provided under the action of inertia, so that there is no risk of the dirt in the sewage tank 5 entering the suction device 6.

[0145] When the cleaning device 100 is in normal use, part of the gas (air) that enters the sewage inlet pipe 53 along with the dirt is discharged through the first outlet 541, and part is discharged through the second outlet 542. This allows the gas entering the sewage inlet pipe 53 to be discharged into the sewage storage chamber 50 through the first outlet 541 and the second outlet 542, so that it can be extracted from the sewage storage chamber 50 through the suction port 5111. Compared to the conventional sewage tank having a single outlet (the first outlet 541) for the sewage inlet pipe, when the gas in the sewage inlet pipe 53 is discharged through the first outlet 541 and the second outlet 542, the air output channel is increased and wind resistance is reduced. This allows the suction device 6 of the cleaning device 100 to quickly extract the gas from the sewage storage chamber 50 at the same rotation speed via the suction port 5111, thereby providing a higher negative pressure environment for the sewage storage chamber 50, reducing the power consumption of the suction device 6, and improving the endurance of the cleaning device 100.

[0146] See also Figure 8 As shown, when the sewage tank 5 is in a flat state, the second outlet 542 can face the surface to be cleaned 200 , and the gas in the sewage inlet pipe 53 and / or part of the output dirt can enter the sewage storage chamber 50 through the second outlet 542 .

[0147] When the cleaning device 100 is lying flat for use, the sewage tank 5 is also in the flat position. Dirt within the sewage tank 5 will gather on the side of the sewage tank 5 facing the surface to be cleaned 200 and below the sewage inlet pipe 53. For example, the tank body 52 has a first side 521 and a second side 522 that are arranged opposite each other. When the sewage tank 5 is in the flat position, the first side 521 is adjacent to the surface to be cleaned 200. When the sewage tank 5 is in the flat position, dirt within the sewage storage chamber 50 will gather on the first side 521 of the sewage tank 5. If, at this point, the user pushes the cleaning device 100 forward to clean the surface to be cleaned 200, the dirt within the sewage tank 5 will move toward the side of the tank cover module 51 due to inertia, causing a surge, causing the dirt to flow toward the sewage inlet pipe 53.

[0148] If the sewage inlet pipe 53 passes through the first outlet 541 and the second outlet 542 is not set, when the surge height is high, the surge part of the dirt may flow away from the surface to be cleaned 200 to the gap A between the sewage inlet pipe 53 and the box cover module 51, and move toward the side of the suction port 5111, resulting in a greater risk of liquid ingress to the suction device 6.

[0149] When the cleaning device 100 of the embodiment of the present application is used in a lying position, since the guide tube 54 is provided with a second outlet 542, and the second outlet 542 is directed toward the surface to be cleaned 200 when the sewage tank 5 is in a lying position, the gas in the sewage inlet pipe 53 and / or part of the output dirt can be output through the second outlet 542. Hereinafter, the gas and dirt in the sewage inlet pipe are collectively referred to as substances. The substance can be gas, dirt, or a mixture of gas and dirt. The dirt includes impurities and fluid, and the fluid can be sewage. When the substance in the sewage inlet pipe 53 is output through the second outlet 542, the dirt in the substance can merge with the dirt stored in the sewage storage chamber 50, and the gas in the substance can flow toward the suction port 5111 under the action of the suction device 6, so that a negative pressure environment is maintained in the sewage storage chamber 50.

[0150] Moreover, when the material in the sewage inlet pipe 53 is discharged through the second outlet 542, the surge height of the surge occurring below the sewage inlet pipe 53 can be suppressed to prevent the dirt in the sewage tank 5 from flowing into the gap A between the sewage inlet pipe 53 and the box cover module 51, which can greatly reduce the probability of dirt moving toward one side of the suction device 6 and reduce the risk of liquid ingress into the suction device 6, thereby ensuring the normal use of the cleaning equipment 100 in a lying state.

[0151] For example, when the gas in the sewage inlet pipe 53 is output through the second outlet 542, the output gas flows toward the suction port 5111 at a certain speed, and the surge height can be suppressed when the gas flows through the surge location.

[0152] For another example, when the fluid (sewage) in the sewage inlet pipe 53 is output through the second outlet 542, the output fluid has a certain kinetic energy. Therefore, when the output fluid merges with the surging sewage, the surge height can also be suppressed.

[0153] Therefore, the embodiment of the present application can reduce wind resistance and improve the endurance of the cleaning device 100 by setting the second outlet 542, and can reduce the risk of liquid entering the suction device 6 when the cleaning device 100 is lying flat for use, so as to ensure the normal use of the cleaning device 100 in the lying state.

[0154] Figure 9 and Figure 10 Shown respectively Figure 8 Schematic diagram of the structure of the middle box 52 at different viewing angles.

[0155] See also Figures 7 to 10 As shown, for the first type of sewage tank, the guide pipe 54 may include a first guide channel 543 and a second guide channel 544. Figure 7 and Figure 8The portion of the solid line path M in the flow guide tube corresponds to the first flow guide channel 543, and the portion of the dashed line path N in the flow guide tube corresponds to the second flow guide channel 544. The inlet ends of the first flow guide channel 543 and the second flow guide channel 544 are both connected to the sewage inlet pipe 53. For example, the inlet end of the second flow guide channel 544 can be connected to the first flow guide channel 543, and then connected to the sewage inlet pipe 53 through the first flow guide channel 543. The first outlet 541 is the outlet end of the first flow guide channel 543, and the second outlet 542 is the outlet end of the second flow guide channel 544, so that the first outlet 541 and the second outlet 542 are connected.

[0156] Moreover, since the inlet ends of the first guide channel 543 and the second guide channel 544 are both connected to the sewage inlet pipe 53, at least part of the substance output from the sewage inlet pipe 53 can enter the second guide channel 544 through the first guide channel 543 and be output to the sewage storage chamber 50 through the second outlet 542, so that the fluid in the substance can merge with the dirt stored in the sewage storage chamber 50, and the gas in the substance can flow toward the suction port 5111, so that a negative pressure environment is maintained in the sewage storage chamber 50.

[0157] It should be noted that Figure 10 The second guide channel 544 is shown to have a structure with one second outlet 542, which does not limit the number of the second outlets 542. In some embodiments, the second guide channel 544 may also have two or more (including two) second outlets 542.

[0158] Figure 11 and Figure 12 Indicated Figure 10 Schematic diagram of the structure of the middle flow guide tube 54 at different viewing angles.

[0159] See also Figure 11 and Figure 12 As shown, the first guide channel 543 and the second guide channel 544 have at least a partial overlapping area or at least a partial common channel wall, so that the inlet end of the second guide channel 544 can be connected to the first guide channel 543, so that the first outlet 541 and the second outlet 542 are connected.

[0160] Furthermore, when the sewage inlet pipe 53 is sucking sewage, because the first diversion channel 543 and the second diversion channel 544 have at least a partial overlap, part of the channel wall of the diversion channel 54 can prevent impurities in the material in the sewage inlet pipe 53 from entering the second diversion channel 544, thereby allowing the fluid (sewage) in the material in the sewage inlet pipe 53 to flow smoothly within the second diversion channel 544. Therefore, the sewage entering the second diversion channel 544 mentioned below mainly refers to the fluid in the sewage.

[0161] Continue to see Figure 12 In some embodiments, the opening area of ​​the first outlet 541 can be larger than the opening area of ​​the second outlet 542. The opening area of ​​the first outlet 541 can be understood as the cross-sectional area of ​​the flow guide tube 54 in the first flow guide channel 543 in the direction perpendicular to the flow. This cross-sectional area can be understood as the diameter of the first flow guide channel 543 at the first outlet 541, which determines the size of the first outlet 541. The opening area of ​​the second outlet 542 can be found in the explanation of the first outlet 541 and will not be repeated here.

[0162] Some gas in the material in the sewage inlet pipe 53 is discharged through the second outlet 542. During the process of being drawn out of the sewage storage chamber 50 by the suction device 6, it carries along a small amount of fluid in the material toward the second outlet 542, forming water vapor and being discharged through the second outlet 542. The gas in the water vapor is in the gas phase, and the small amount of fluid entrained by the gas can be in the liquid phase of the water vapor.

[0163] As is well known, for a pipeline, the flow rate of a flowing medium in the pipeline is equal to the product of the cross-sectional area of ​​the pipeline in the direction perpendicular to the flow and the flow velocity of the flowing medium. The water vapor in the sewage inlet pipe 53 can be regarded as a flowing medium. When the flow rate of the water vapor in the first outlet 541 and the second outlet 542 is constant, and the opening area of ​​the first outlet 541 is larger than the opening area of ​​the second outlet 542, the flow rate of the water vapor in the second outlet 542 is faster than that in the first outlet 541. In this way, the water vapor in the sewage inlet pipe 53 will rub against the channel wall of the second guide channel 544 when it is output through the second outlet, which can accelerate the sedimentation speed and effect of the fluid in the water vapor, so that more fluid in the dirt can enter the sewage storage chamber 50 through the second outlet 542, realize the gas-liquid separation of the water vapor, and further reduce the risk of liquid entering the suction device 6.

[0164] Continue to see Figure 12 In some embodiments, the opening area of ​​the first outlet 541 can be greater than twice the opening area of ​​the second outlet 542. For example, the opening area of ​​the first outlet 541 can be 2.5 times, 3 times, or the like, greater than the opening area of ​​the second outlet 542. By further limiting the opening areas of the first outlet 541 and the second outlet 542, the flow rate of water vapor in the second outlet 542 can be further increased, the settling speed and effect of the fluid in the water vapor can be enhanced, and the gas-liquid separation of the water vapor can be further improved, thereby further reducing the risk of liquid intrusion into the suction device 6.

[0165] It should be noted that, in some embodiments, the opening area of ​​the first outlet 541 may also match the opening area of ​​the second outlet 542. In other words, the opening area of ​​the first outlet 541 may be equal to or similar to the opening area of ​​the second outlet 542. Since the second outlet suppresses the surge height, the risk of liquid entering the suction device 6 can also be reduced.

[0166] The following further describes the structure of the first sewage tank by taking the example that the opening area of ​​the first outlet 541 is larger than the opening area of ​​the second outlet 542 .

[0167] Continue to see Figure 12 Combined with Figure 10 The second diversion channel 544 can be located to one side of the first diversion channel 543 in the first direction, so that when the sewage tank 5 is in an upright position, the second outlet 542 can be higher than the first outlet 541. The first direction is the direction from the tank body 52 toward the tank cover module 51, specifically the Z direction. The first direction is collectively referred to as the first direction Z below to facilitate understanding of this application.

[0168] Figure 13 A schematic structural diagram of a flow guide tube 54 is shown.

[0169] See also Figure 12 and Figure 13 As shown, the channel wall of the guide tube 54 includes a first guide plate 545 and a second guide plate 546. The second guide plate 546 is located on one side of the first guide plate 545 in the first direction Z and has a first overlapping area with the first guide plate 545.

[0170] Continue to see Figure 13 The second guide channel 544 is formed in the first overlapping region. The channel wall of the guide tube 54 outside the first overlapping region forms the first guide channel 543. The second outlet 542 is located at the end where the second guide plate 546 overlaps with the first guide plate 545. The first outlet 541 is located at the end where the second guide plate 546 does not overlap with the first guide plate 545, thereby connecting the first guide channel 543 with the second guide channel 544 and achieving communication between the first outlet 541 and the second outlet 542.

[0171] See again Figure 12 The first guide plate 545 and the second guide plate 546 have a first spacing L1 in the first overlapping area, and the opening size of the first outlet 541 is larger than the first spacing L1. Since the second guide channel 544 is formed in the first overlapping area, the first spacing L1 can be regarded as the internal dimension of the second guide channel 544 at each section. This internal dimension can be regarded as the opening size (caliber) of the second outlet 542, which determines the opening area of ​​the second outlet 542. By limiting the first spacing L1 and the opening size of the first outlet 541, it can be ensured that the opening area of ​​the first outlet 541 is larger than the opening area of ​​the second outlet 542.

[0172] Furthermore, since the opening size of the first outlet 541 is larger than the first spacing L1, that is, the internal size of the second guide channel 544 at each section is smaller than the first outlet 541. This allows the flow rate of water vapor in the sewage inlet pipe 53 in the second guide channel 544 to be greater than that in the first outlet 541, further enhancing the sedimentation effect of the fluid in the water vapor, allowing more fluid in the sewage to enter the sewage storage chamber 50 through the second outlet 542, thereby reducing the risk of liquid intrusion into the suction device 6.

[0173] See again Figure 12 Combined with Figure 8 In some embodiments, the end of the second guide plate 546 that overlaps with the first guide plate 545 extends along the surface of the first guide plate 545 toward the inner wall of the box body 52, and a channel 55 is defined between the end of the second guide plate 546 that overlaps with the first guide plate 545 and the side wall of the box body 52. ​​By extending the end of the second guide plate 546 that overlaps with the first guide plate 545, the length of the second guide channel 544 can be increased, and the second outlet 542 can be directed toward the inner wall of the box body 52.

[0174] As described above, when the sewage tank 5 is in a flat position, the dirt in the dirt storage chamber 50 will accumulate on the first side 521 of the sewage tank 5. If the second outlet 542 faces the tank cover module 51, then when the sewage tank 5 is in a flat position and the water vapor in the sewage inlet pipe 53 enters the second guide channel 544, the fluid in the water vapor will be easily entrained by the gas under the suction of the suction device 6 and move toward the suction device 6. The dirt may even enter the suction device 6, damaging it and affecting the normal use of the cleaning device 100.

[0175] Therefore, in the embodiment of the present application, the second outlet 542 faces the inner wall of the box body 52, and when the sewage tank 5 is in a flat position, the second outlet 542 faces the first side 521. At this time, when the water vapor output from the sewage inlet pipe 53 enters the second guide channel 544, the second guide plate 546 will exert an inertial force on the water vapor, so that the fluid in the water vapor will settle under the action of the inertial force. When it is output through the second outlet 542, it is very easy to touch the dirt originally stored in the dirt storage chamber 50, and it is not easy to be sucked away by the suction device 6, which can further enhance the dirt settling effect.

[0176] The gas in the water vapor will be sucked out of the sewage inlet pipe 53 by the suction device 6, and under the action of the suction device 6, it will move toward the suction port 5111 through the channel 55 and be sucked out of the sewage storage chamber 50, thereby realizing the gas-liquid separation of the water vapor, and enabling the fluid of the water vapor to settle better and flow into the dirt originally stored in the sewage storage chamber 50, so as to further prevent the dirt from entering the suction device 6 and damaging the suction device 6, thereby ensuring the normal use of the cleaning equipment 100.

[0177] Continue to see Figure 12 Combined with Figure 13 In some embodiments, the end of the second guide plate 546 that does not overlap with the first guide plate 545 can extend toward the bottom wall or inner wall of the box body 52, so that the first outlet 541 faces the bottom wall or inner wall of the box body 52, so that when the sewage tank 5 is in an upright state or a flat state, the dirt output by the sewage inlet pipe 53 can enter the bottom of the sewage storage chamber 50 through the first outlet 541.

[0178] Continue to see Figure 12 The overlapping end of the first guide plate 545 and the second guide plate 546 is an overlapping end 5451. The overlapping end 5451 extends toward one side of the second guide plate 546. Furthermore, along the second direction, a second spacing L2 is defined between the overlapping end 5451 and the second guide plate 546. The positions of the first guide plate 545 and the second guide plate 546 corresponding to the second spacing L2 can form the inlet end of the second guide channel 544, thereby enabling communication between the inlet end of the second guide channel 544 and the interior of the first guide channel 543, thereby enabling communication between the inlet end of the second guide channel 544 and the sewage inlet pipe 53 through the second guide channel 544.

[0179] It should be noted that the second direction can be perpendicular to the first direction. The second direction can be regarded as the width direction or left-right direction of the sewage tank 5, and can be parallel to the X direction. Similarly, the second direction is uniformly represented by the second direction X below to facilitate a better understanding of this application.

[0180] The second distance L2 refers to the minimum distance between the overlapping end 5451 and the second guide plate 546 in the second direction X.

[0181] Continue to see Figure 12 The sewage inlet pipe 53 has a sewage discharge end 531 connected to the guide pipe 54. The inlet ends of the first guide channel 543 and the second guide channel 544 are both connected to the sewage discharge end 531. The dirt output from the sewage inlet pipe 53 can enter the guide pipe 54 through the sewage discharge end 531. Along the second direction X, the overlapping end 5451 passes over the sewage discharge end 531, so that the overlapping end 5451 of the first guide plate 545 can be closer to the first outlet 541 in the second direction X, so that the material output from the sewage discharge end 531 can be better guided to the first outlet 541 through the first guide plate 545, so that the dirt in the material can be output through the first outlet 541 and stored in the sewage storage chamber 50, and the gas in the material can be output through the first outlet 541 and then flow toward the side of the suction port 5111 under the action of the suction device 6, thereby being extracted from the sewage storage chamber 50.

[0182] The overlapping end 5451 may be located on one side of the first outlet 541 in the first direction Z, and there is a third distance L3 between the overlapping end 5451 and the first outlet 541 , so that in the first direction Z, the overlapping end 5451 and the first outlet 541 have a height difference in the dirt storage chamber 50 .

[0183] If, in the first direction Z, the overlapping end 5451 and the first outlet 541 are at the same height in the sewage storage chamber 50 (with no height difference), the overlapping end 5451 will bend toward the position of the first outlet 541 and be located inside the first outlet 541, which will affect the opening area of ​​the first outlet 541 and further affect the speed at which the material in the sewage inlet pipe 53 enters the sewage storage chamber 50 through the first outlet 541.

[0184] In contrast, in the present application, since there is a height difference between the overlapping end 5451 and the first outlet 541 in the sewage storage chamber 50 in the first direction Z, this ensures that the first outlet 541 has a larger opening area so that the dirt in the sewage inlet pipe 53 can quickly enter the sewage storage chamber 50 through the first outlet 541.

[0185] It should be noted that the third spacing L3 can be greater than the first spacing L1 and smaller than the second spacing L2, so that the overlapping end 5451 is away from the second outlet 542, so as to increase the height difference between the overlapping end 5451 and the first outlet 541, and ensure that the first guide channel 543 has a larger opening area at the position corresponding to the overlapping end 5451.

[0186] Since the second conducting channel 55 is formed in the first overlapping region, the shape of the first guide plate 545 and the second guide plate 546 in the first overlapping region determines the shape of the second outlet 542 .

[0187] Continue to see Figure 12 At least one of the first guide plate 545 and the second guide plate 546 may be an arc-shaped plate. In this case, the shape of the second outlet 542 at least includes an arc shape that matches the plate shape of the first guide plate 545 and the second guide plate 546.

[0188] Alternatively, at least one of the first guide plate 545 and the second guide plate 546 may be a non-arc plate. In this case, the shape of the second outlet 542 at least includes a non-arc shape that matches the plate shape of the first guide plate 545 and the second guide plate 546.

[0189] It should be noted that the non-arc plate may be a bent plate with a bending angle. For example, the non-arc plate may be an L-shaped bent plate bent at 90°.

[0190] Compared with non-arc plates, when at least one of the first guide plate 545 and the second guide plate 546 is an arc plate, by controlling the curvature of the arc plate, the material in the sewage inlet pipe 53 can flow better to the first outlet 541 or the second outlet 542 under the guidance of the arc plate.

[0191] The following further describes the structure of the first sewage tank by taking the example that both the first guide plate 545 and the second guide plate 546 are arc-shaped plates.

[0192] Continue to see Figure 12 Combined with Figure 13 The channel wall of the guide tube 54 may further include a connecting plate 547. The connecting plate 547 is connected to both sides of the first guide plate 545 and the second guide plate 546, respectively, to form the guide tube 54 together with the first guide plate 545 and the second guide plate 546, so as to ensure the circumferential sealing of the guide tube 54. When the material (such as dirt) output by the sewage inlet pipe 53 flows in the guide tube 54, it will not splash outside the guide tube 54.

[0193] The connecting plate 547 can be used together with the first guide plate 545 and the second guide plate 546 to form a first guide channel 543. The second guide plate 546 can be connected to the circumference of the first guide plate 545 and form a second guide channel 544 together with the first guide plate 545.

[0194] The connecting plate 547 can be a curved connecting plate. Alternatively, the connecting plate 547 can be a non-curved plate as described above. Similarly, compared to a non-curved plate, when the connecting plate 547 is a curved connecting plate, by controlling the curvature of the curved connecting plate, substances (such as dirt) can flow better to the first outlet 541 under the guidance of the curved connecting plate.

[0195] See again Figure 8 As described above, when the sewage tank 5 is in a flat position, the first side 521 is adjacent to the surface to be cleaned 200, and the second outlet 542 is positioned closer to the first side 521. In some embodiments, the end of the sewage inlet pipe 53 adjacent to the flow guide pipe 54 can be tilted relative to the central axis o1 of the tank body 52 toward the first side 521. This allows the second outlet 542 to be closer to the surface to be cleaned 200 when the sewage tank 5 is in a flat position. This allows the fluid in the material output from the sewage inlet pipe 53 through the second outlet to more easily flow into the sewage storage chamber, further reducing the risk of liquid intrusion into the suction device 6.

[0196] It should be noted that in this application, there is no limitation on the inclination angle of one end of the sewage inlet pipe 53 adjacent to the guide pipe 54. It is sufficient to ensure that after the sewage inlet pipe 53 is tilted, there is a gap between the guide pipe 54 and the first side 521 so that the dirt output by the sewage inlet pipe 53 can be discharged from the guide pipe 54 through the second outlet 542 and can be smoothly merged with the dirt originally stored in the sewage storage chamber 50.

[0197] See again Figure 10 For the first type of sewage tank, the number of sewage inlet pipes 53 can be one or more than two (including two). When there are more than two sewage inlet pipes 53, two adjacent sewage inlet pipes 53 are plugged into each other. For example, the sewage inlet pipe 53 is divided into a first section sewage inlet pipe and a second section sewage inlet pipe. The first section sewage inlet pipe is connected to the box cover module 51, and the second section sewage inlet pipe is connected to the box body 52. ​​When the box cover module 51 is installed on the box body 52, the first section sewage inlet pipe and the second section sewage inlet pipe are detachably connected. In this way, the sewage inlet pipe 53 is formed on the sewage inlet pipe 53 closest to the box cover module 51. In this way, the total length of the sewage inlet pipe 53 can be flexibly adjusted according to the height of the sewage tank 5, so that the installation height of the sewage discharge end 531 of all sewage inlet pipes 53 in the sewage storage cavity 50 can reach the height required by the design of the sewage tank 5, so that the sewage inlet assembly can be suitable for sewage tanks 5 of different sizes.

[0198] See again Figure 10 , the sewage inlet pipe 53 can be installed on the box body 52. ​​In this case, the diversion pipe 54 can be installed on the box body 52 or the box cover module 51. This ensures that the diversion pipe 54 and the sewage inlet pipe 53 are installed in the sewage storage chamber 50, and also allows for more diverse installation methods of the diversion pipe 54 in the sewage tank 5.

[0199] It should be noted that when the flow guide tube 54 can be installed on the box body 52, the flow guide tube 54 can form an integral structure with the sewage inlet pipe 53. When the flow guide tube 54 can be installed on the box cover module 51, the flow guide tube 54 can be removed from the box body 52 together with the box cover module 51. When the box cover module 51 is installed on the top of the box body 52, the flow guide tube 54 is connected to the sewage inlet end of the sewage inlet pipe 53, and a sealing structure can be formed between the flow guide tube 54 and the sewage inlet end.

[0200] Alternatively, when there are two or more sewage inlet pipes 53, a portion of the two or more sewage inlet pipes 53 can be installed on the box body 52, and the other portion can be connected to the diversion pipe 54 and installed on the side of the box cover module 51 facing the box body 52. ​​In this case, while ensuring that the diversion pipe 54 and the sewage inlet pipe 53 are installed in the sewage storage chamber 50, it can also make the arrangement of the sewage inlet pipe 53 and the diversion pipe 54 in the sewage tank 5 more diverse.

[0201] The following text Figure 10The sewage inlet pipes 53 shown in the figure are all installed on the box body 52, and the guide pipe 54 is installed on the box cover module 51. The structure of the first sewage tank is further explained.

[0202] See again Figure 5b As shown, the water retaining structure 512 includes a mounting portion 5121 and a water retaining portion 5122. The mounting portion 5121 is mounted in the box cover 511, and a suction port 5111 is provided on the mounting portion 5121. The water retaining portion 5122 includes a first water retaining plate 5123, which is connected to the side of the mounting portion 5121 facing away from the box cover 511 and is provided on the side of the suction port 5111 facing the second outlet 542. The end of the first water retaining plate 5123 facing away from the box cover 511 is located in the direction extending toward the bottom of the box body 52, and has a gap with the end of the guide pipe 54 facing the box cover module 51. Because the first water baffle 5123 is connected to the side of the mounting portion 5121 facing away from the tank cover 511 and is located on the side of the suction port 5111 facing the second outlet 542, when the tank cover module 51 is installed on the top of the tank body 52, the first water baffle 5123 can be located inside the tank body 52. ​​Furthermore, when the sewage tank 5 is lying flat, the first water baffle 5123 can block part of the dirt in the sewage storage chamber 50 from flowing toward the suction port 5111, thereby preventing the suction device 6 from being damaged by the ingress of dirt and affecting the normal use of the cleaning device 100.

[0203] The edge of the first water baffle 5123 can also be bent toward the side away from the suction port 5111 to increase the blocking effect of the first water baffle 5123 on dirt, so as to further prevent dirt from flowing toward the suction port 5111 and reduce the risk of liquid intrusion into the suction device 6.

[0204] See again Figure 5b and Figure 8 The water retaining portion 5122 further includes a second water retaining plate 5124. The second water retaining plate 5124 is provided on the side of the first water retaining plate 5123 facing the suction port 5111 to block the side of the suction port 5111 facing the sewage inlet pipe 53. Figure 8 When the sewage tank 5 is in a lying state, the height of the suction port 5111 is greater than the height of the first water baffle 5123 , and the height of the first water baffle 5123 is greater than the height of the second outlet 542 .

[0205] When the cleaning device 100 is used in a flat position and the user pushes the cleaning device 100 forward, the dirt in the sewage tank 5 will gather under the first water baffle 5123 due to inertia, and the dirt in the sewage tank 5 will move toward the side of the sewage inlet pipe 53, causing a surge. When a surge occurs, the dirt will flow into the area between the first water baffle 5123 and the guide pipe 54 (i.e., the gap A mentioned above). At this time, the second outlet 542 can suppress the surge height below the sewage inlet pipe 53, reducing the risk of liquid intrusion into the suction device 6.

[0206] On this basis, the embodiment of the present application limits the height of the suction port 5111, the first water baffle 5123 and the second outlet 542 when the sewage tank 5 is in a flat state. If some dirt in the sewage tank 5 surges to the area between the first water baffle and the guide pipe 54 during a surge and flows toward the suction port 5111, it will first be blocked by the second water baffle 5124 to further reduce the risk of liquid ingress into the suction device 6.

[0207] It should be noted that, when the cleaning device 100 is used normally, the first water baffle 5123 and the second water baffle 5124 will also block dirt from flowing toward one side of the suction port 5111 , thereby ensuring the normal use of the suction device 6 .

[0208] See again Figure 10 Combined with Figure 8 An overflow channel 56 is formed between one end of the flow guide tube 54, where the first outlet 541 is located, and the inner wall of the sewage storage chamber 50. When the sewage tank 5 is in a flat position and a surge occurs within the sewage tank 5, some dirt may flow through the overflow channel 56 toward one side of the suction device 6, causing the suction device 6 to still be at risk of liquid ingress.

[0209] For this, see again Figure 10 Combined with Figure 8 For the first type of sewage tank, in some embodiments, a blocking member 57 may be provided on the inner sidewall of the sewage storage chamber 50. For example, the blocking member 57 may be a blocking plate or a blocking rib. The blocking member 57 blocks the overflow channel 56 on the side facing the tank cover module 51 and is also located on the side of the suction port 5111 facing the flow guide tube 54. This blocking member 57 prevents sewage from flowing toward the suction port 5111, further reducing the risk of liquid intrusion into the suction device 6.

[0210] See again Figure 10 Combined with Figure 8The blocking member 57 and the first water baffle 5123 are located on opposite sides of the dirt storage chamber 50. For example, the blocking member 57 can be located on the second side 522 of the box body 52, and the first water baffle 5123 can be located on the side of the box cover module 51 opposite to the second side 522 of the box body 52. ​​The end of the blocking member 57 can extend toward one side of the first water baffle 5123, with a gap between the end of the blocking member 57 and the first water baffle 5123, so as to enhance the dirt blocking effect of the blocking member 57. At the same time, due to the setting of the gap between the end of the blocking member 57 and the first water baffle 5123, it is also possible to prevent the extension of the blocking member 57 from affecting the installation of the box cover module 51 on the top of the box body 52.

[0211] See again Figure 10 The end of the blocking member 57 can be bent toward one side of the box cover module 51 and then extended toward the side of the first water baffle 5123 to avoid the end of the blocking member 57 directly extending and interfering with the guide tube 54, thereby ensuring the normal installation of the blocking member 57 and the guide tube 54 in the sewage storage chamber 50.

[0212] The second water blocking plate 5124 may be located on a side of the blocking member 57 facing away from the flow guide tube 54 and have a second overlapping area with the blocking member 57 .

[0213] On the basis of the blocking member 57, the second water baffle 5124 is provided to prevent dirt from passing over the blocking member 57, thereby further preventing the dirt from flowing toward one side of the suction device 6, thereby further reducing the risk of liquid intrusion into the suction device 6.

[0214] It should be noted that the above is the first type of sewage tank mentioned in the embodiment of this application.

[0215] The following further describes the structure of the second sewage tank mentioned in the embodiments of the present application.

[0216] Figure 14 A schematic diagram of the interior of a second type of sewage tank is shown.

[0217] See also Figure 14 As shown, the second type of sewage tank also includes a cover module 51, a tank body 52, and a sewage inlet assembly. Unlike the first type of sewage tank, the second type of sewage tank has a different structure for the flow guide tube 54. The second flow guide plate 546 is a separate flow guide structure from the flow guide tube 54. In other words, the second flow guide plate 546 and the flow guide tube 54 are two separate structural components. Furthermore, a second flow guide channel 544 is formed between the second flow guide plate 546 and the flow guide tube 54.

[0218] The following text will further describe the differences between the second sewage tank and the first sewage tank in conjunction with the accompanying drawings.

[0219] Figure 15Shown Figure 14 Schematic diagram of the structure of the sewage inlet component in the second sewage tank.

[0220] See also Figure 15 As shown, for the second type of sewage tank, the sewage inlet assembly includes a sewage inlet pipe 53, a guide pipe 54, and a second guide plate 546. One end of the guide pipe 54 is connected to the sewage inlet pipe 53, and the other end has a first outlet 541. The orientation of the first outlet 541 is the same as that of the first type of sewage tank and will not be described in detail here. The second guide plate 546 blocks at least part of the channel wall of the guide pipe 54 on the side facing the tank cover module 51. In addition, a second guide channel 544 is formed between the second guide plate 546 and the guide pipe 54. The second guide channel 544 is connected to the guide pipe 54. The second guide channel 544 has a second outlet 542. The second outlet 542 can be regarded as the outlet end of the second guide channel 544. The orientation of the second outlet 542 is the same as that of the first type of sewage tank and will not be described in detail here.

[0221] Continue to see Figure 15 For the second type of sewage tank, when the sewage tank 5 is in an upright state and a flat state, the directions of the first outlet 541 and the second outlet 542, as well as the height of the second outlet 542 relative to the first outlet 541 are the same as those of the first type of sewage tank, and will not be repeated here.

[0222] Similar to the first type of sewage tank, the second type of sewage tank has a first outlet 541 and a second outlet 542. This allows, when the cleaning device 100 is in normal use, the dirt discharged from the sewage inlet pipe 53 to enter the diversion pipe 54, be sucked in through the first outlet 541, and stored in the sewage storage chamber 50. When the dirt is heavy, a small amount of dirt may be discharged through the second outlet 542. Furthermore, when the cleaning device 100 is in normal use, this also increases the air output channel, reduces wind resistance, and improves the endurance of the cleaning device 100.

[0223] In addition, since the second outlet 542 in the second sewage tank is directed toward the surface to be cleaned 200 when the cleaning device 100 is lying flat for use, and the sewage tank 5 is also in a lying state, when the material in the sewage inlet pipe 53 is discharged through the second outlet 542, the surge height of the surge occurring below the sewage inlet pipe 53 can also be suppressed, so as to prevent the dirt in the sewage tank 5 from flowing into the area between the sewage inlet pipe 53 and the tank cover module 51, which can greatly reduce the probability of the dirt moving toward one side of the suction device 6 and reduce the risk of liquid inflow into the suction device 6, thereby ensuring the normal use of the cleaning device 100 in a lying state.

[0224] Continue to see Figure 15A first spacing L1 is defined between the second guide plate 546 and a portion of the channel wall of the guide tube 54. The opening size of the first outlet 541 is larger than the first spacing L1. The first spacing L1 can be considered the internal dimension (e.g., diameter) of the second guide channel 544 at each section, which determines the opening area of ​​the second outlet 542. By limiting the first spacing L1 and the opening size of the first outlet 541, the opening area of ​​the first outlet 541 is ensured to be larger than that of the second outlet 542. This also accelerates the settling speed and effect of the fluid in the water vapor within the sewage inlet pipe 53, allowing more fluid to enter the sewage storage chamber 50 through the second outlet 542, achieving gas-liquid separation of the water vapor.

[0225] Continue to see Figure 15 The guide tube 54 may have a first guide channel 543 therein. The outlet end of the first guide channel 543 forms a first outlet 541. The second guide channel 544 may be in communication with the first guide channel 543, so that the material output from the sewage inlet pipe 53 can enter the second guide channel 544 through the first guide channel 543 and be output from the second outlet 542.

[0226] Continue to see Figure 15 In some embodiments, the inlet end of the second flow guiding channel 544 can be connected to the outlet end of the first flow guiding channel 543 to achieve communication between the second flow guiding channel 544 and the first flow guiding channel 543. The outlet end of the first flow guiding channel 543 can form a first outlet 541.

[0227] The flow guide duct 54 may include a first flow guide plate 545 and a connecting plate 547. The connecting plate 547 is connected to the first flow guide plate 545 in a circumferential direction to form the flow guide duct 54 together with the first flow guide plate 545.

[0228] The first guide plate 545 is located on the side of the guide tube 54 facing the cover module 51. The second guide plate 546 can block the first outlet 541. The end of the second guide plate 546 can also extend along the first guide plate 545 toward the inlet of the first guide channel 543, blocking a portion of the channel wall on the side of the first guide plate 545 away from the connecting plate 547. In this case, a first overlapping region is formed between the end of the second guide plate 546 and the first guide plate 545. The second guide channel 544 is formed in this first overlapping region, ensuring that the inlet of the second guide channel 544 is connected to the outlet of the first guide channel 543.

[0229] In other embodiments, the inlet end of the second guide channel 544 may also be connected to the middle area of ​​the first guide channel 543 to achieve communication between the second guide channel 544 and the first guide channel 543. Specifically, the guide pipe 54 has a communication opening on the side facing the box cover module 51. The second guide plate 546 may block the communication opening, and the second guide channel 544 is formed between the second guide plate 546 and a portion of the channel wall of the guide pipe 54. This can also ensure communication between the second guide channel 544 and the first guide channel 543, so that the material in the sewage inlet pipe 53 can enter the second guide channel 544 through the communication opening and be discharged from the second outlet 542.

[0230] As described above, the guide tube 54 has a first guide plate 545 on the side facing the cover module 51. A communication port can be provided on the first guide plate 545, and a second guide plate 546 can block the corresponding communication port on the first guide plate 545, so that the second guide plate 546 and the first guide plate 545 can form a second guide channel 544. At the same time, the communication port can be ensured to be located on the channel wall of the second guide channel 544, thereby enabling the communication port to connect the second guide channel 544 with the first guide channel 543. At this point, a first overlapping region is still defined between the end of the second guide plate 546 and the first guide plate 545. The second guide channel 544 is still formed in the first overlapping region, and the inlet end of the second guide channel 544 is ensured to be connected to the outlet end of the first guide channel 543. The first outlet 541 is located at an end of the first guide plate 545 away from the sewage inlet pipe 53 , and the second outlet 542 is formed on a side of the second guide plate 546 away from the first outlet 541 .

[0231] The shapes of the first guide plate 545 , the second guide plate 546 and the connecting plate 547 can be found in the relevant description of the first sewage tank, and will not be repeated here.

[0232] For the second type of sewage tank, the installation method for the sewage inlet pipe 53 can be found in the description of the first type of sewage tank above. For the second type of sewage tank, when the sewage inlet pipe 53 is installed on the tank body 52, the second guide plate 546 can be installed on the tank body 52 or the tank cover module 51. This ensures that the guide pipe 54 and the sewage inlet pipe 53 are installed within the sewage storage chamber 50 while also allowing for more diverse installation methods for the guide pipe 54 within the sewage tank 5.

[0233] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0234] In the description of this application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, display structure, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, products or apparatuses.

[0235] The term "and / or" as used herein is simply a description of an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0236] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," etc. should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration. They can be directly connected or indirectly connected through an intermediate medium, allowing internal communication between two elements or an interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated.

[0237] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewage tank for cleaning equipment, characterized in that: The cleaning device is used to clean the surface to be cleaned (200), and the sewage tank includes: The box cover module (51) has a suction port (5111); A box body (52), the box cover module (51) is installed on the top of the box body (52) and forms a dirt storage cavity (50) with the box body (52); the dirt storage cavity (50) is communicated with the suction port (5111); the suction port (5111) is used to extract gas from the dirt storage cavity (50) to form a negative pressure environment in the dirt storage cavity (50); A sewage inlet assembly is provided in the sewage storage chamber (50), and comprises a sewage inlet pipe (53) and a flow guide pipe (54); one end of the flow guide pipe (54) is in communication with the sewage inlet pipe (53), and the other end has a first outlet (541) and a second outlet (542) which are in communication with each other, the first outlet (541) facing the bottom wall or the inner wall of the box body (52), and the second outlet (542) facing the inner wall of the box body (52); the sewage inlet pipe (53) is in communication with the outside of the sewage storage chamber (50), and the sewage inlet assembly is configured to suck the dirt generated during the cleaning process of the cleaning equipment into the sewage storage chamber (50) in sequence through the sewage inlet pipe (53) and the flow guide pipe (54) under the action of a pressure difference; The sewage tank has an upright state and a flat state; when the sewage tank is in the upright state, the second outlet (542) is higher than the first outlet (541); when the sewage tank is in the flat state, the second outlet (542) faces the surface to be cleaned (200); the gas in the sewage inlet pipe (53) and / or part of the output dirt can enter the sewage storage chamber (50) through the second outlet (542).

2. The sewage tank according to claim 1, characterized in that: The guide pipe (54) comprises a first guide channel (543) and a second guide channel (544); the inlet ends of the first guide channel (543) and the second guide channel (544) are both connected to the sewage inlet pipe (53); the first outlet (541) is the outlet end of the first guide channel (543); and the second outlet (542) is the outlet end of the second guide channel (544).

3. The sewage tank according to claim 2, characterized in that: The first flow guiding channel (543) and the second flow guiding channel (544) have at least a partially overlapping area or at least a partially shared channel wall.

4. The sewage tank according to claim 3, characterized in that: The opening area of ​​the first outlet (541) is larger than the opening area of ​​the second outlet (542).

5. The sewage tank according to any one of claims 2 to 4, characterized in that: The second guide channel (544) is located on one side of the first guide channel (543) in a first direction, and the first direction is the direction from the box body (52) toward the box cover module (51).

6. The sewage tank according to claim 5, characterized in that: The channel wall of the guide tube (54) comprises a first guide plate (545) and a second guide plate (546), wherein a portion of the second guide plate (546) is located on one side of the first guide plate (545) in the first direction and has a first overlapping area with the first guide plate (545); The second guide channel (544) is formed in the first overlapping area, and the channel wall of the guide tube (54) outside the first overlapping area forms the first guide channel (543); the second outlet (542) is located at the end where the second guide plate (546) overlaps with the first guide plate (545), and the first outlet (541) is located at the end where the second guide plate (546) does not overlap with the first guide plate (545).

7. The sewage tank according to claim 6, characterized in that: The first guide plate (545) and the second guide plate (546) have a first spacing in the first overlapping area, and the first spacing is smaller than the opening size of the first outlet (541) and larger than the first spacing.

8. The sewage tank according to claim 6, characterized in that: One end of the second guide plate (546) overlapping with the first guide plate (545) extends along the surface of the first guide plate (545) toward the inner wall of the box body (52), and a channel (55) is provided between the end of the second guide plate (546) overlapping with the first guide plate (545) and the inner wall of the box body (52).

9. The sewage tank according to claim 8, characterized in that: An end of the second guide plate (546) that does not overlap with the first guide plate (545) extends toward the bottom wall or the inner side wall of the box body (52).

10. The sewage tank according to claim 6, characterized in that: The end portion where the first guide plate (545) and the second guide plate (546) overlap is an overlapping end (5451), the overlapping end (5451) extends toward one side of the second guide plate (546), and along the second direction, a second distance exists between the end portion of the first guide plate (545) and the second guide plate (546); The second direction is perpendicular to the first direction.

11. The sewage tank according to claim 10, characterized in that: The sewage inlet pipe (53) has a sewage discharge end (531) connected to the flow guide pipe (54), and along the second direction, the overlapping end (5451) passes over the sewage discharge end (531).

12. The sewage tank according to claim 10, characterized in that: The overlapping end (5451) is located on one side of the first outlet (541) in the first direction, and a third distance exists between the overlapping end (5451) and the first outlet (541).

13. The sewage tank according to claim 6, characterized in that: At least one of the first guide plate (545) and the second guide plate (546) is a smooth transition structure.

14. The sewage tank according to claim 6, characterized in that The channel wall of the guide tube (54) further comprises a connecting plate (547), wherein the connecting plate (547) is respectively connected to both sides of the first guide plate (545) and the second guide plate (546), so as to enclose the guide tube (54) together with the first guide plate (545) and the second guide plate (546).

15. The sewage tank according to any one of claims 1 to 4, characterized in that: The box body (52) has a first side (521) and a second side (522) that are arranged opposite to each other, and when the sewage tank is in the lying state, the first side (521) is adjacent to the surface to be cleaned (200); The sewage inlet pipe (53) is inclined relative to the central axis of the box body (52) toward the first side (521) to increase the space between the flow guide pipe (54) and the second side (522).

16. The sewage tank according to any one of claims 1 to 4, characterized in that: The sewage inlet pipe (53) is divided into a first section sewage inlet pipe and a second section sewage inlet pipe, the first section sewage inlet pipe is connected to the box cover module (51), and the second section sewage inlet pipe is connected to the box body (52). When the box cover module (51) is installed on the box body (52), the first section sewage inlet pipe and the second section sewage inlet pipe are detachably connected.

17. The sewage tank according to claim 16, characterized in that: The sewage inlet pipes (53) are all installed on the box body (52), and the flow guide pipes (54) are installed on the box body (52) or the box cover module (51).

18. The sewage tank according to claim 16, characterized in that One portion of the two or more sewage inlet pipes (53) is installed on the box body (52), and the other portion is communicated with the flow guide pipe (54) and installed on the side of the box cover module (51) facing the box body (52).

19. The sewage tank according to any one of claims 1 to 4, characterized in that: The box cover module (51) comprises a box cover (511) and a water retaining structure (512), wherein the box cover (511) is mounted on the top of the box body (52); the water retaining structure (512) comprises a mounting portion (5121) and a water retaining portion (5122), wherein the mounting portion (5121) is mounted in the box cover (511), and the suction port is provided on the mounting portion (5121); The water retaining portion (5122) comprises a first water retaining plate (5123) and a second water retaining plate (5124); the first water retaining plate (5123) is connected to the side of the mounting portion (5121) facing away from the box cover (511), and is arranged on the side of the suction port facing the second outlet (542); the end of the first water retaining plate (5123) facing away from the box cover (511) extends toward the bottom of the box body (52), and has a gap with the end of the guide pipe (54) facing the box cover module (51); the second water retaining plate (5124) is arranged on the side of the first water retaining plate (5123) facing the suction port (5111), and is blocked on the side of the suction port (5111) facing the sewage inlet pipe (53).

20. The sewage tank according to claim 19, characterized in that When the sewage tank is in the lying state, the height of the suction port (5111) is greater than the height of the first water baffle (5123), and the height of the first water baffle (5123) is greater than the height of the second outlet (542).

21. The sewage tank according to claim 19, characterized in that An overflow channel (56) is provided between one end of the guide pipe (54) provided with the first outlet (541) and the inner wall of the dirt storage chamber (50); A blocking member (57) is provided on the inner side wall of the dirt storage chamber (50), and the blocking member (57) blocks the overflow channel (56) on the side facing the box cover module (51), and is also blocked on the side of the suction port (5111) facing the guide pipe (54).

22. The sewage tank according to claim 21, characterized in that The blocking member (57) and the first water baffle (5123) are located on opposite sides of the dirt storage chamber (50), and an end portion of the blocking member (57) extends toward one side of the first water baffle (5123) and has a gap between the blocking member (57) and the first water baffle (5123); The second water baffle (5124) is located on a side of the blocking member (57) away from the flow guide tube (54), and has a second overlapping area with the blocking member (57).

23. A sewage tank for cleaning equipment, characterized in that: The cleaning device is used to clean the surface to be cleaned (200), and the sewage tank includes: The box cover module (51) has a suction port (5111); A box body (52), wherein the box cover module (51) is installed on the top of the box body (52) and forms a dirt storage cavity (50) with the box body (52); the dirt storage cavity (50) is communicated with the suction port (5111), and the suction port (5111) is used to extract gas from the dirt storage cavity (50) to form a negative pressure environment in the dirt storage cavity (50); A sewage inlet assembly is provided in the sewage storage chamber (50), and comprises a sewage inlet pipe (53), a flow guide pipe (54), and a second flow guide plate (546); one end of the flow guide pipe (54) is communicated with the sewage inlet pipe (53), and the other end has a first outlet (541), and the first outlet (541) faces the bottom wall or the inner wall of the box body (52); the second flow guide plate (546) blocks at least a portion of the channel wall of the flow guide pipe (54) facing the box cover module (51), and a second flow guide channel (544) is formed between the second flow guide plate (546) and the flow guide pipe (54), the second flow guide channel (544) is communicated with the flow guide pipe (54), and the second flow guide channel (544) has a second outlet (542); the second outlet (542) faces the inner wall of the sewage storage chamber (50); The sewage inlet assembly is configured to suck the dirt generated during the cleaning process of the cleaning equipment into the sewage storage chamber (50) in sequence through the sewage inlet pipe (53) and the guide pipe (54) under the action of pressure difference; The sewage tank has an upright state and a flat state; when the sewage tank is in the upright state, the second outlet (542) is higher than the first outlet (541); when the sewage tank is in the flat state, the second outlet (542) faces the surface to be cleaned (200); the gas in the sewage inlet pipe (53) and / or part of the output dirt can enter the sewage storage chamber (50) through the second outlet (542).

24. The sewage tank according to claim 23, characterized in that The opening area of ​​the first outlet (541) is larger than the opening area of ​​the second outlet (542).

25. The sewage tank according to claim 23, characterized in that There is a first distance between the second guide plate (546) and a portion of the channel wall of the guide tube (54), and the opening size of the first outlet (541) is larger than the first distance.

26. The sewage tank according to any one of claims 23 to 25, characterized in that: The guide tube (54) has a communication opening on a side facing the box cover module (51), the second guide plate (546) blocks the communication opening, and a second guide channel (544) is formed between the second guide plate (546) and a portion of the channel wall of the guide tube (54).

27. The sewage tank according to claim 26, characterized in that The guide pipe (54) has a first guide plate (545) on the side facing the box cover module (51), the communication port is provided on the first guide plate (545), and the second guide plate (546) blocks the position of the first guide plate (545) corresponding to the communication port; The first outlet (541) is located at an end of the first guide plate (545) away from the sewage inlet pipe (53), and the second outlet (542) is formed on a side of the second guide plate (546) away from the first outlet (541).

28. The sewage tank according to claim 27, characterized in that At least one of the first guide plate (545) and the second guide plate (546) is a curved plate.

29. The sewage tank according to any one of claims 23 to 25, characterized in that: The second guide plate (546) is installed on the box body (52) or the box cover module (51).

30. A cleaning device, characterized in that: Comprising a cleaning module (1), a suction device (6), and a sewage tank according to any one of items 1-21 or any one of items 23-29, the sewage tank having a suction port (5111) and a sewage storage chamber (50), the suction port (5111) being in communication with the sewage storage chamber (50); The suction device (6) is located on a side of the sewage tank provided with the suction port (5111), and is fixed relative to the sewage tank; the suction device (6) is configured to suck the suction port (5111) to extract the gas in the sewage storage chamber (50) to form a negative pressure environment in the sewage storage chamber (50); The sewage tank can be rotated relative to the cleaning module (1) so that the sewage tank can be switched between a lying state and an upright state.

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