WO2022083065A1

WO2022083065A1 - Water circulation system of cleaning robot

Info

Publication number: WO2022083065A1
Application number: PCT/CN2021/083238
Authority: WO
Inventors: 高子庆; 苏猛
Original assignee: 深圳市锐曼智能装备有限公司
Priority date: 2020-10-23
Filing date: 2021-03-26
Publication date: 2022-04-28
Also published as: CN112120614A

Abstract

A water circulation system of a cleaning robot, comprising a water tank (1), a water outlet pipeline (2), an extrusion roller (4) for extruding a rolling brush (200), a water pan (5) for containing sewage, a filtering mechanism, and a water pump (7). The water tank (1) conveys water to the rolling brush (200) by means of the water outlet pipeline (2), the extrusion roller (4) is tightly attached to the periphery of the rolling brush (200), the water pan (5) is located below the rolling brush (200), the filtering mechanism is installed between the water pan (5) and the water pump (7), and sewage in the water pan (5) is pumped back into the water tank (1) by means of the water pump (7) after being filtered by the filtering mechanism. Sewage in the rolling brush (200) can be extruded out by the extrusion roller (4) in the water circulation system and flows into the water pan (5), and the sewage in the water pan (5) is pumped back into the water tank (1) by means of the water pump (7) to continue to participate in circulation after being filtered. Because sewage generated by mopping is pumped back to the water tank (1) and recycled after being filtered, the requirement for long-time mopping can be met even if the size of the water tank (1) is designed to be smaller. Moreover, because frequent manual water adding is not needed, the cleaning efficiency is improved, and labor cost is saved.

Description

A water circulation system for cleaning robots

technical field

The invention belongs to the field of cleaning equipment, and in particular relates to a water circulation system of a cleaning robot.

Background technique

Cleaning robots are special robots that serve humans, mainly engaged in non-family cleaning and cleaning of large areas. The cleaning robot has the following advantages: 1. Time-saving and labor-saving sweeping: The entire cleaning process does not require human control, which reduces the user's operating burden and saves time watching TV and accompanying family members. 2. Low noise: less than 70 decibels, the process of cleaning the room is free from noise. 3. Lightweight and compact: easily clean the dead corners that ordinary vacuum cleaners cannot clean.

However, due to the lightweight and compact design of the cleaning robot, the volume of its water tank is limited and cannot be loaded with excessive water. Therefore, after the cleaning robot works for a short period of time, it needs to manually add water and manually clean the mopping parts. It can be seen that the existing cleaning robot still needs frequent manual maintenance when cleaning. For this reason, it is necessary to further improve the existing cleaning robots, so that people's cleaning work can be more time-saving and labor-saving.

technical problem

The technical problem to be solved by the present invention is to provide a water circulation system for a cleaning robot, which aims to solve the problem that the cleaning robot in the prior art requires frequent manual maintenance.

technical solutions

The present invention is realized in this way, a water circulation system for a cleaning robot includes a water tank and a water outlet pipeline, the water tank transports water to the roller brush for mopping the floor through the water outlet pipeline; the water circulation system also includes a A squeezing roller for squeezing the rolling brush, a water receiving tray for accommodating the sewage squeezed from the rolling brush, a filter mechanism for filtering the sewage, and a water pump; the squeezing roller is close to the periphery of the rolling brush, and all the The axial direction of the squeeze roller is parallel to the axial direction of the rolling brush, the water receiving tray is located below the rolling brush, the filter mechanism is installed between the water receiving tray and the water pump, and the sewage in the water receiving tray passes through After being filtered by the filtering mechanism, it is pumped back into the water tank by the water pump.

Further, the water circulation system further includes a deflector, the deflector is disposed obliquely between the water receiving plate and the rolling brush, and the lower side of the deflector is connected to the water receiving plate.

Further, the filter mechanism includes filter cotton, the filter cotton is laid at the bottom end of the water receiving tray, and the bottom of the water receiving tray is provided with a number of water outlet holes; In the installation groove where the water receiving tray is embedded, the bottom of the installation groove is provided with a space for accommodating sewage, the space is communicated with the water pump through a pipeline, and a chip collecting groove is provided at the bottom of the space.

Further, the water circulation system further includes an ultraviolet light sterilization device, and the light outgoing direction of the ultraviolet light sterilization device faces the inside of the water receiving tray and/or the inside of the water tank.

Further, the water circulation system further includes a spray plate, the spray plate is located above the roller brush, the top of the spray plate is provided with an equalizing dam and a water inlet, and a flow channel is arranged inside the spray plate The bottom of the spray plate is provided with a plurality of spray ports, the water tank is connected with the water inlet through the water outlet pipeline, and the water inlet, the flow channel and the plurality of spray ports are connected in sequence.

Further, the horizontal height of the water tank is higher than the height of the spray plate, and the water in the water tank flows into the flow channel of the spray plate under the action of gravity.

Further, the water circulation system also includes a water level detection device and an alarm. The water level detection device is installed inside the water receiving tray, and its height position is higher than the normal water level of the sewage in the water receiving tray. When the water level of the water level detection device is equal to or higher than the water level detection device, it indicates that the water outlet hole and/or the filter mechanism of the water receiving tray is blocked; the water level detection device sends a signal to the alarm device, and the alarm device transmits a signal through sound and/or light. Make an alarm.

beneficial effect

Compared with the prior art, the present invention has beneficial effects as follows: the water circulation system proposed by the present invention is applied in a cleaning robot. When the cleaning robot is mopping the floor, its roller brushes continuously roll, and the squeezing roller in the water circulating system can squeeze the roller. Brush, squeeze out the sewage absorbed in the rolling brush, and the water receiving tray is used to accommodate the sewage. After the sewage in the water receiving tray is filtered by the filter mechanism, the second clean water is obtained, and the last clean water is pumped back to the water tank by the water pump to continue to participate. cycle.

Since the sewage generated by mopping is filtered and then pumped back to the water tank for recycling, the water in the water tank is consumed very slowly. Even if the water tank is designed to be small, it can meet the needs of long-term mopping. At the same time, because it does not need to manually add water frequently, the cleaning efficiency is improved, the labor cost is saved, and the waste of water resources is avoided.

Description of drawings

FIG. 1 is a structural diagram of a water circulation system of a cleaning robot provided in this embodiment when used with a roller brush.

FIG. 2 is a schematic diagram of an exploded structure of the water circulation system provided in this embodiment.

FIG. 3 is a structural diagram of a spray plate in the water circulation system shown in FIG. 2 .

FIG. 4 is a schematic structural diagram of the filter cotton and the water receiving tray assembled in the water circulation system shown in FIG. 2 .

BEST MODE FOR CARRYING OUT THE INVENTION

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention; the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise Clearly stipulated and defined, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or through The intermediary is indirectly connected, which can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Please refer to FIG. 1 and FIG. 2, which show a preferred embodiment provided by the present invention, a water circulation system for a cleaning robot, including a water tank 1, a water outlet pipeline 2, a spray plate 3, a squeezing roller 4, and a water receiving system. Disk 5 , deflector 6 , water level detection device, alarm, filter mechanism, ultraviolet light sterilization device, water pump 7 and water inlet pipeline 8 .

The water tank 1 is used for accommodating water for mopping the floor, and is provided with a handle 11 for easy lifting by a user. The bottom of the water tank 1 has a water outlet and a water inlet, and both the water outlet and the water inlet are embedded with elastic snap valves and elastic snap valves, that is, when the water tank 1 is lifted, the elastic snap valve and the elastic snap valve are embedded. The snap valve will close automatically. When the water tank 1 is put down, the joints of the water outlet pipeline 2 and the water inlet pipeline 8 are inserted into the elastic snap valve and the elastic snap valve respectively.

The water tank 1 transports water to the spray plate 3 through the water outlet pipeline 2, and the spray plate 3 is installed above the roller brush 200 for mopping the floor. Please refer to FIG. 3 , the shower plate 3 is provided with a water inlet 31 , a flow channel is arranged inside the shower plate 3 , a plurality of shower outlets 32 are arranged at the bottom of the shower plate 3 , and the water tank 1 is connected to the inlet through the water outlet pipeline 2 . The nozzles 31 are connected. The water inlet 31 , the flow channel and the plurality of spray ports 32 communicate with each other in sequence. Further, two equalizing dams 33 are also provided on the top of the spray plate 3, so as to ensure that the roller brush 200 can be cleaned evenly. The level of the water tank 1 is higher than the height of the spray plate 3 , and the water in the water tank 1 flows into the flow channel of the spray plate 3 under the action of gravity. The water in the flow channel is then evenly sprayed onto the roller brush 200 through the plurality of spray ports 32 .

The squeezing roller 4 is close to the periphery of the rolling brush 200, and the axial direction of the squeezing roller 4 is parallel to the axial direction of the rolling brush 200. In this embodiment, the squeezing roller 4 is in the shape of a stick, and its surface is provided with a wave shape The wavy structure can increase the frictional force when it is in contact with the roller brush 200 to avoid slippage.

The water receiving tray 5 is located below the rolling brush 200 for accommodating the sewage squeezed out from the rolling brush 200 .

The deflector 6 is inclined (at a certain angle to the horizontal plane) and is arranged between the water receiving plate 5 and the roller brush 200, and its lower side is connected to the water receiving plate 5, so that sewage can be guided from the roller brush 200 to the receiving plate 5. in the water tray 5.

The filter mechanism is installed between the water receiving tray 5 and the water pump 7 , and the sewage in the water receiving tray 5 is filtered by the filtering mechanism and then pumped back into the water tank 1 through the water pump 7 . In this embodiment, the filter mechanism includes filter cotton 9, please refer to FIG. 4, the filter cotton 9 is laid at the bottom end position inside the water receiving tray 5, and the bottom of the water receiving tray 5 is provided with a number of water outlet holes 51; There is an installation groove 10 for embedding the water receiving tray 5 at the bottom. The bottom of the installation groove 10 has a space 101 for accommodating sewage. The space 101 is communicated with the water pump 7 through the water inlet pipeline 8. The bottom of the space 101 is provided with Chip pocket 102 . Further, in order to increase the filtering capacity, a second filter cotton 103 is laid in the space 101 just below the water receiving tray 5 .

In order to prevent the sewage in the water receiving tray 5 from overflowing after the filter cotton 9 is blocked, and to prevent the water circulation from being interrupted, a water level detection device and an alarm are provided in this embodiment. The water level detection device is installed in the water receiving tray 5, and its height is higher than The normal water level of the sewage in the water receiving tray 5, when the water level of the sewage is equal to or higher than the water level detection device, it means that the water outlet hole 51 and/or the filter cotton 9 of the water receiving tray 5 are blocked; the water level detection device sends a signal to the alarm, The alarm sounds and/or lights to remind the user to clean the water receiving tray 5 and/or the filter cotton 9 .

The above-mentioned ultraviolet light sterilization device is used to sterilize water (it can be water before filtering, or filtered sub-clean water). In this embodiment, a UV lamp tube capable of emitting ultraviolet rays is used as the light source. The sterilized secondary clean water is pumped back into the water tank 1 through the water pump 7 . Of course, the filtered water can also be pumped into the water tank 1 first, and then the water in the water tank 1 can be sterilized.

When the cleaning robot is mopping the floor, its rolling brush 200 keeps rolling. The water circulation system of this embodiment is applied to the cleaning robot, and its squeezing roller 4 can squeeze the rolling brush 200 to squeeze out the sewage absorbed in the rolling brush 200. The water receiving tray 5 is used to contain sewage. The sewage in the water receiving tray 5 is filtered by the filter mechanism to obtain the second clean water, and the last clean water is pumped back to the water tank 1 by the pump 7 to continue to participate in the circulation.

Since the sewage generated by mopping is filtered and then pumped back to the water tank 1 for recycling, the water in the water tank 1 is consumed very slowly. Even if the water tank 1 is designed to be small in volume, it can meet the needs of long-term mopping. At the same time, because it does not need to manually add water frequently, the cleaning efficiency is improved, the labor cost is saved, and the waste of water resources is avoided.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims

A water circulation system for a cleaning robot, comprising a water tank and a water outlet pipeline, the water tank transports water to a roller brush for mopping the floor through the water outlet pipeline; it is characterized in that, the water circulation system further comprises a water circulation system for extrusion The squeezing roller of the rolling brush, the water receiving tray for accommodating the sewage squeezed from the rolling brush, the filtering mechanism for filtering the sewage, and the water pump; the squeezing roller is close to the periphery of the rolling brush, and the squeezing The axis direction of the roller is parallel to the axis direction of the roller brush, the water receiving plate is located below the roller brush, the filter mechanism is installed between the water receiving plate and the water pump, and the sewage in the water receiving plate passes through the filter After the mechanism is filtered, it is pumped back into the water tank by the water pump.
The water circulation system according to claim 1, characterized in that, the water circulation system further comprises a deflector, the deflector is obliquely arranged between the water receiving tray and the roller brush, and the deflector is lower one side is connected to the drip tray.
The water circulation system according to claim 2, wherein the filter mechanism comprises filter cotton, the filter cotton is laid at the bottom end of the water receiving tray, and a plurality of water outlets are arranged at the bottom of the water receiving tray The bottom of the water receiving tray has an installation groove for embedding the water receiving tray, the bottom of the installation groove has a space for accommodating sewage, the space is communicated with the water pump through a pipeline, and the installation groove is The bottom is provided with a chip groove.
The water circulation system according to any one of claims 1 to 3, wherein the water circulation system further comprises an ultraviolet light sterilization device, and the light exit direction of the ultraviolet light sterilization device faces the inside of the water receiving tray and/or the water tank internal.
The water circulation system according to any one of claims 1 to 3, wherein the water circulation system further comprises a spray plate, the spray plate is located above the roller brush, and the top of the spray plate is provided with an equalizing dam and The water inlet, the inside of the spray plate is provided with a flow channel, the bottom of the spray plate is provided with a plurality of spray ports, the water tank is connected with the water inlet through the water outlet pipeline, and the water inlet , a flow channel and a plurality of spray ports are connected in turn.
The water circulation system according to claim 5, wherein the level of the water tank is higher than the height of the spray plate, and the water in the water tank flows into the flow channel of the spray plate under the action of gravity.
The water circulation system according to any one of claims 1 to 3, wherein the water circulation system further comprises a water level detection device and an alarm, the water level detection device is installed inside the water receiving tray, and, Its height position is higher than the normal water level of the sewage in the water receiving tray. When the water level of the sewage is equal to or higher than the water level detection device, it means that the water outlet and/or filter mechanism of the water receiving tray are blocked; the water level detection device sends The signal is sent to the alarm, which alarms by sound and/or light.