Water adding and draining device and cleaning device

Abstract

The water adding and draining device is used for conducting water adding and draining operation on a water tank of a cleaning robot, the water adding and draining device comprises a shell, a water adding and draining main body and a first driving mechanism, the water adding and draining main body is movably arranged on the shell, and the water adding and draining main body is provided with a sewage channel and a clear water channel; the water adding and draining main body is provided with a first rack part, a water inlet of the sewage channel and a water outlet of the clear water channel both extend out of the shell, the first driving mechanism comprises a first motor and a first gear, the first motor is arranged in the shell and connected with the first gear, and the first gear is meshed with the first rack part; the first motor is used for driving the water adding and draining body to ascend and descend through meshing of the first gear and the first rack part. According to the scheme, the problems that the number of parts of a water adding and draining device in the related technology is large, and miniaturization design of the water adding and draining device is not facilitated can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of robots, in particular to a water adding and draining device and a cleaning device. Background Art

[0002] With the improvement of people's living standards, intelligent cleaning devices (such as cleaning devices including cleaning robots) have been widely used in families, commercial, industrial, medical and public places, etc.

[0003] After the cleaning robot of the intelligent cleaning device works for a period of time, it needs to perform water adding and draining operations at the cleaning base station to drain the sewage stored in the sewage tank during the operation of the cleaning robot and replenish water to the cleaning tank. In order to perform water adding and draining operations on the cleaning robot, a water adding and draining device is adopted in the related art. The water adding and draining device arranges a sewage suction pipe and a water adding pipe on a transverse member, the transverse member is connected with a motor, and the motor drives the transverse member, the sewage suction pipe and the water adding pipe to lift through the meshing of a gear and a rack. Since the number of components of the water adding and draining device in the related art is relatively large, the water adding and draining device needs to occupy a large space, which is not conducive to the miniaturized design of the water adding and draining device. Summary of the Utility Model

[0004] The utility model discloses a water adding and draining device and a cleaning device to solve the problem that the number of components of the water adding and draining device in the related art is large, which is not conducive to the miniaturized design of the water adding and draining device.

[0005] In order to solve the above technical problems, the utility model is realized as follows:

[0006] In a first aspect, the present application discloses a water adding and draining device for performing water adding and draining operations on the water tank of a cleaning robot. The water adding and draining device includes a housing, a water adding and draining main body and a first driving mechanism. The water adding and draining main body is movably arranged in the housing. The water adding and draining main body has a sewage channel and a clean water channel. The water adding and draining main body is provided with a first rack portion. The water inlet of the sewage channel and the water outlet of the clean water channel both extend out of the housing. The first driving mechanism includes a first motor and a first gear. The first motor is arranged in the housing. The first motor is connected with the first gear. The first gear meshes with the first rack portion. The first motor is used to drive the water adding and draining main body to lift through the meshing of the first gear and the first rack portion.

[0007] In a second aspect, the present application also discloses a cleaning device. The disclosed cleaning device includes a cleaning base station and a cleaning robot. The cleaning base station includes the water adding and draining device described in the first aspect. The cleaning robot includes the water tank.

[0008] The technical solution adopted by the utility model can achieve the following technical effects:

[0009] In the water addition and drainage device disclosed in the embodiment of the present application, by setting the drainage main body to have a first rack portion structure, the first gear meshes with the first rack portion, so that the first motor drives the water addition and drainage main body to lift through the meshing of the first gear and the first rack portion, thereby realizing that the drainage main body performs water addition and drainage operations on the water tank through the sewage channel and the clean water channel. Since the drainage main body has the first rack portion and the first rack portion directly meshes with the first gear, there is no need to separately provide a component that cooperates with the first rack portion, which can reduce the number of components of the water addition and drainage device, and is thus conducive to the miniaturization design of the water addition and drainage device. Description of the Drawings

[0010] Figure 1 Schematic diagram of the push rod of the water addition and drainage device disclosed in the embodiment of the present utility model at the first position;

[0011] Figure 2 Schematic diagram of the push rod of the water addition and drainage device disclosed in the embodiment of the present utility model at the second position;

[0012] Figure 3 Schematic diagram of the water addition and drainage main body of the water addition and drainage device disclosed in the embodiment of the present utility model at the third position;

[0013] Figure 4 Partial schematic diagram of the water addition and drainage device disclosed in the embodiment of the present utility model;

[0014] Figure 5 Exploded schematic diagram of the water addition and drainage device disclosed in the embodiment of the present utility model;

[0015] Figure 6 Schematic diagram of the push rod of the water addition and drainage device disclosed in the embodiment of the present utility model when the water tank cover is not pushed open;

[0016] Figure 7 Schematic diagram of the push rod of the water addition and drainage device disclosed in the embodiment of the present utility model when the water tank cover is pushed open;

[0017] Figure 8 Schematic diagram of the drainage main body of the water addition and drainage device disclosed in the embodiment of the present utility model when performing water addition and drainage operations on the water tank through the sewage channel and the clean water channel.

[0018] Description of the Reference Numerals:

[0019] 100 - water tank, 110 - water tank body, 120 - water tank cover,

[0020] 200 - housing, 210 - first housing portion, 220 - second housing portion,

[0021] 300 - water addition and drainage main body, 310 - sewage channel, 320 - clean water channel, 321 - water replenishing flexible joint, 330 - first rack portion,

[0022] 400 - First driving mechanism, 410 - First motor, 420 - First gear,

[0023] 500 - Water tank cover switch assembly, 510 - Push rod, 511 - Second rack portion, 512 - Push rod body, 513 - Buffer head, 513a - Swing spring, 513b - Flexible sleeve, 520 - Second motor, 530 - Second gear,

[0024] 610 - First position detector, 620 - Third position detector,

[0025] 700 - Water tank cover detection assembly, 710 - Detection swing rod, 720 - Second position detector

[0026] 800 - Bellows, 900 - Fresh water pipe. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] The technical solutions disclosed in each embodiment of the present utility model will be described in detail below in conjunction with the drawings.

[0029] Please refer to Figures 1 to 8 , an embodiment of the present utility model discloses a water adding and draining device, and the disclosed water adding and draining device is used for performing water adding and draining operations on the water tank 100 of a cleaning robot. The water tank 100 includes a sewage tank and a fresh water tank, and the water adding and draining operation refers to discharging the sewage in the sewage tank through the water adding and draining device and performing a water adding operation into the fresh water tank. The fresh water tank can be nested outside the sewage tank. Of course, the sewage tank can also be nested outside the fresh water tank, or the sewage tank and the fresh water tank can be arranged side by side. The embodiments of the present application do not limit the arrangement manner of the sewage tank and the fresh water tank.

[0030] The water adding and draining device includes a housing 200, a water adding and draining main body 300, and a first driving mechanism 400. The water adding and draining main body 300 is movably arranged in the housing 200, and the water adding and draining main body 300 has a sewage channel 310 and a fresh water channel 320.

[0031] It should be noted that before the water addition and drainage device performs water addition and drainage operations on the water tank 100, the cleaning robot needs to dock at the docking position so that the water inlet of the sewage channel 310 and the water outlet of the clean water channel 320 face the sewage tank and the clean water tank respectively. When performing water addition and drainage operations on the water tank 100, the water addition and drainage main body 300 needs to descend so that the sewage channel 310 extends into the sewage tank from the opening of the sewage tank, thereby discharging the sewage in the sewage tank from the sewage channel 310 through negative pressure. The clean water channel 320 faces the opening of the clean water tank or extends into the clean water tank to add water to the clean water tank. After the drainage of the sewage tank and the water addition to the clean water tank are completed, the water addition and drainage main body 300 rises so that the cleaning robot can move out of the docking position.

[0032] The water addition and drainage main body 300 is provided with a first rack portion 330, and the first rack portion 330 can be arranged on the outer surface of the water addition and drainage main body 300. Part of the sewage channel 310 and part of the clean water channel 320 are movably arranged in the housing 200, and the water inlet of the sewage channel 310 and the water outlet of the clean water channel 320 both extend outside the housing 200.

[0033] The first driving mechanism 400 includes a first motor 410 and a first gear 420. The first motor 410 is arranged in the housing 200. The first motor 410 is connected to the first gear 420, and the first motor 410 can be used to drive the first gear 420 to rotate around the central axis of the first gear 420. The first gear 420 meshes with the first rack portion 330, and the first motor 410 is used to drive the water addition and drainage main body 300 to lift through the meshing of the first gear 420 and the first rack portion 330, so that the drainage main body 300 performs water addition and drainage operations on the water tank 100 through the sewage channel 310 and the clean water channel 320.

[0034] The water addition and drainage device disclosed in the embodiment of the present application sets the drainage main body 300 to have a structure with a first rack portion 330, so that the first gear 420 meshes with the first rack portion 330, thereby enabling the first motor 410 to drive the water addition and drainage main body 300 to lift through the meshing of the first gear 420 and the first rack portion 330, so as to realize that the drainage main body 300 performs water addition and drainage operations on the water tank 100 through the sewage channel 310 and the clean water channel 320. Since the drainage main body 300 has the first rack portion 330 and the first rack portion 330 directly meshes with the first gear 420, there is no need to separately set a component that cooperates with the first rack portion 330, which can reduce the number of components of the water addition and drainage device, and is thus conducive to the miniaturization design of the water addition and drainage device. Moreover, directly setting the first rack portion 330 on the drainage main body 300 without separately setting a component that cooperates with the first rack portion 330 can also reduce the assembly operation.

[0035] There are relatively many types of water tanks 100. Optionally, the water tank 100 may only include the water tank body 110. The water tank has an open structure, that is, the sewage tank and the clean water tank are not provided with a water tank cover 120. At this time, the water tank 100 refers to the water tank body 110. When performing the water addition and drainage operations on the water tank 100, the water addition and drainage main body 300 descends so that the sewage channel 310 extends into the sewage tank from the opening of the sewage tank, thereby discharging the sewage in the sewage tank through the negative pressure action from the sewage channel 310. The clean water channel 320 is opposite to the opening of the clean water tank or extends into the clean water tank, thereby adding water to the clean water tank.

[0036] In another embodiment, the water tank 100 may include the water tank body 110 and the water tank cover 120. The water tank cover 120 may be rotatably provided on the water tank body 110. The water tank body 110 may include a sewage tank body and a clean water tank body. The relative rotation of the water tank cover 120 with respect to the water tank body 110 can be switched between an open state and a closed state. When the water tank cover 120 is in the open state, the water addition and drainage main body 300 descends so that the sewage channel 310 extends into the sewage tank body from the opening of the sewage tank body, thereby discharging the sewage in the sewage tank body through the negative pressure action from the sewage channel 310. The clean water channel 320 is opposite to the opening of the clean water tank body or extends into the clean water tank body, thereby adding water to the clean water tank body. When the water tank cover 120 is in the closed state, the water tank cover 120 can block the openings of the sewage tank body and the clean water tank body.

[0037] The water addition and drainage device may further include a water tank cover switch assembly 500 for opening or closing the water tank cover 120. The water tank cover switch assembly 500 may include a push rod 510, a second motor 520, and a second gear 530. The push rod 510 may be movably provided in the housing 200, and the push rod 510 may have a second rack portion 511. The second motor 520 may be provided in the housing 200, and the second gear 530 may be connected to the second motor 520. The second motor 520 can drive the second gear 530 to rotate. The second motor 520 can drive the push rod 510 to lift or lower through the engagement of the second gear 530 and the second rack portion 511, so as to open or close the water tank cover 120. The water addition and drainage main body 300 can perform the water addition and drainage operations on the water tank body 110 through the sewage channel 310 and the clean water channel 320.

[0038] It should be noted that the water tank cover 120 can be an integral structure. By using one water tank cover 120 to cover both the sewage tank body and the clean water tank body, a push rod 510 can be used to open or close the water tank cover 120. Of course, the water tank cover 120 can also include a separately arranged sewage tank cover and a clean water tank cover. There can be two push rods 510, and the two push rods 510 can be used to open or close the sewage tank cover and the clean water tank cover respectively. Or, when the water tank cover 120 includes a separately arranged sewage tank cover and a clean water tank cover, the sewage tank cover and the clean water tank cover can be a linkage structure. By using one push rod 510, the sewage tank cover and the clean water tank cover can be linked, so that the sewage tank cover and the clean water tank cover can be opened simultaneously.

[0039] When the second motor 520 drives the push rod 510 to descend through the engagement of the second gear 530 with the second rack portion 511, at least part of the push rod 510 can be located outside the housing 200. The push rod 510 can push the water tank cover 120 to rotate so that the water tank cover 120 is in an open state. After the push rod 510 pushes the water tank cover 120 to rotate so that the water tank cover 120 is in an open state, the first motor 410 can drive the water addition and drainage main body 300 to descend through the engagement of the first gear 420 with the first rack portion 330, so that the water addition and drainage main body 300 can perform water addition and drainage operations on the water tank body 110 through the sewage channel 310 and the clean water channel 320.

[0040] After the water addition and drainage operations on the water tank body 110 are completed, the first motor 410 can drive the water addition and drainage main body 300 to rise through the engagement of the first gear 420 with the first rack portion 330. After the water addition and drainage main body 300 rises to the third preset position (at this time, the water tank body 110 will not interfere with the water addition and drainage main body 300 when the cleaning robot moves), the second motor 520 drives the push rod 510 to rise through the engagement of the second gear 530 with the second rack portion 511. The push rod 510 can be fully retracted into the housing 200, or at least part of it can be retracted into the housing 200. At this time, the push rod 510 can be separated from the water tank cover 120, so that the water tank cover 120 can automatically return to the closed state.

[0041] The water addition and drainage device disclosed in the embodiment of the present application sets the water tank cover switch assembly 500, and sets the water tank cover switch assembly 500 to include a structure of a push rod 510, a second motor 520 and a second gear 530, and makes the push rod 510 have a second rack portion 511, so that the second motor 520 can drive the push rod 510 to lift or lower through the engagement of the second gear 530 with the second rack portion 511, so as to open or close the water tank cover 120. Furthermore, when the water tank cover 120 is in an open state, the water addition and drainage main body 300 can perform water addition and drainage operations on the water tank body 110 through the sewage channel 310 and the clean water channel 320.

[0042] When the push rod 510 is in rigid contact with the water tank cover 120, it is easy to generate impact between the push rod 510 and the water tank cover 120, resulting in damage to the push rod 510 or the water tank cover 120. In order to avoid damage to the push rod 510 or the water tank cover 120 due to impact when they are in contact, optionally, the push rod 510 may include a push rod body 512 and a buffer head 513. The push rod body 512 may be connected to the buffer head 513. The push rod body 512 may have a second rack portion 511. At least a part of the buffer head 513 may extend outside the housing 200. The buffer head 513 may be used to open or close the water tank cover 120.

[0043] Specifically, when the second motor 520 drives the push rod 510 to descend through the engagement of the second gear 530 and the second rack portion 511, the buffer head 513 may contact the water tank cover 120 and push open the water tank cover 120 to make the water tank cover 120 in an open state. When the second motor 520 drives the push rod 510 to ascend through the engagement of the second gear 530 and the second rack portion 511, the buffer head 513 may be separated from the water tank cover 120, and the water tank cover 120 may automatically return to the closed state.

[0044] The water adding and draining device disclosed in the embodiment of the present application sets the push rod 510 to include a structure of a push rod body 512 and a buffer head 513, so that through the interaction between the buffer head 513 and the water tank cover 120, under the buffering effect of the buffer head 513, there is a certain buffering effect when the buffer head 513 contacts the water tank cover 120, thereby avoiding rigid contact between the push rod 510 and the water tank cover 120, and further avoiding damage to the push rod 510 or the water tank cover 120 due to impact when they are in contact.

[0045] Of course, in other embodiments, the push rod 510 may also be a rigid rod or other structures, and the embodiment of the present application does not specifically limit the structure of the push rod 510.

[0046] In a specific implementation manner, there are relatively many choices for the buffer head 513. For example, the buffer head 513 may be an elastic rubber part, a foam plastic part, etc. In order to make the buffer head 513 not only have the function of buffering impact, but also when the buffer head 513 interferes with the water tank body 110 in the lifting direction, and when the buffer head 513 is squeezed by the water tank body 110, the buffer head 513 can be bent to avoid large acting force between the buffer head 513 and the water tank body 110 and damage, optionally, the buffer head 513 may include a spring 513a and a flexible sleeve 513b. The spring 513a may be connected to the push rod body 512, and the flexible sleeve 513b may be sleeved on the spring 513a.

[0047] Specifically, when the position where the cleaning robot docks is relatively accurate, during the descent of the push rod 510, the flexible sleeve 513b directly contacts the water tank cover 120 and pushes open the water tank cover 120. When the deviation of the position where the cleaning robot docks is relatively large, interference may occur between the buffer head 513 and the water tank body 110 in the lifting direction. If interference occurs between the buffer head 513 and the water tank body 110 during the descent of the push rod 510, the spring 513a and the flexible sleeve 513b can bend together to relieve the extrusion between the buffer head 513 and the water tank body 110, thereby protecting the buffer head 513 and the water tank body 110.

[0048] After the operation of adding or draining water from the water tank body 110 is completed, the second motor 520 drives the push rod 510 to rise to a first preset position through the engagement of the second gear 530 and the second rack portion 511, so as to avoid interference between the push rod 510 and the cleaning robot when the cleaning robot moves. However, in some abnormal situations, the push rod 510 may not rise to the first preset position, resulting in interference between the push rod 510 and the cleaning robot when the cleaning robot moves. To avoid interference between the push rod 510 and the cleaning robot caused by the push rod 510 not rising to the first preset position, optionally, the water adding and draining device may further include a controller and a first position detector 610. The first position detector 610 may be disposed on the housing 200. Both the first position detector 610 and the second motor 520 may be connected to the controller. The first position detector 610 may be used to detect whether the push rod 510 rises to the first preset position. When the first position detector 610 detects that the push rod 510 rises to the first preset position, the controller may control the second motor 520 to stop driving the push rod 510 to continue rising.

[0049] It should be noted that during the process of the second motor 520 driving the push rod 510 to rise, if the first position detector 610 detects that the push rod 510 rises to the first preset position, it can be determined that the push rod 510 has risen to the first preset position, and the controller can control the second motor 520 to stop driving the push rod 510 to continue rising, so that the push rod 510 remains at the first preset position. During the process of the second motor 520 driving the push rod 510 to rise, if the first position detector 610 does not detect that the push rod 510 rises to the first preset position within a preset time period or abnormal conditions such as the current and voltage of the second motor 520 occur, it indicates that there may be an abnormal situation resulting in the push rod 510 being unable to rise to the first preset position. At this time, the water adding and draining device and the cleaning robot can stop working and wait for the user to check, or can send a prompt message (such as a sound message, a text message, etc.) to the user to prompt the user.

[0050] In the water addition and drainage device disclosed in the embodiment of the present application, by providing a controller and a first position detector 610, the first position detector 610 can be used to detect whether the push rod 510 rises to a first preset position. When the first position detector 610 detects that the push rod 510 rises to the first preset position, the controller can control the second motor 520 to stop driving the push rod 510 from rising further, so as to ensure that the push rod 510 rises to the first preset position. Furthermore, when the cleaning robot moves, interference between the push rod 510 and the cleaning robot can be avoided.

[0051] The first position detector 610 can be a photoelectric sensor, a travel switch, a pressure sensor, etc. The embodiment of the present application does not specifically limit the type of the first position detector 610.

[0052] Before the first motor 410 drives the water addition and drainage main body 300 to descend through the engagement of the first gear 420 and the first rack portion 330, so that the water addition and drainage main body 300 performs water addition and drainage operations on the water tank body 110 through the sewage channel 310 and the clean water channel 320, it is necessary to ensure that the water tank cover 120 is in an open state, so as to ensure that the drainage main body 300 can perform water addition and drainage operations on the water tank body 110 through the sewage channel 310 and the clean water channel 320. Optionally, in order to ensure that the water tank cover 120 is in an open state before performing the water addition and drainage operations on the water tank body 110, the water addition and drainage device may further include a controller and a water tank cover detection assembly 700, and the water tank cover detection assembly 700 can be arranged on the housing 200. Both the water tank cover detection assembly 700 and the second motor 520 can be connected to the controller, and the water tank cover detection assembly 700 can be used to detect whether the water tank cover 120 is opened to a preset opening degree. When the water tank cover detection assembly 700 detects that the water tank cover 120 is opened to the preset opening degree, the controller can control the second motor 520 to stop driving the push rod 510 from descending further.

[0053] In the water addition and drainage device disclosed in the embodiment of the present application, by providing a controller and a water tank cover detection assembly 700, the water tank cover detection assembly 700 can detect whether the water tank cover 120 is opened to a preset opening degree. Thus, when the water tank cover detection assembly 700 detects that the water tank cover 120 is opened to the preset opening degree, the controller controls the second motor 520 to stop driving the push rod 510 from descending further, so as to determine that the water tank cover 120 has been opened to the preset opening degree, and further, the water addition and drainage operations on the water tank body 110 can be started through the sewage channel 310 and the clean water channel 320. Moreover, the problem that the water tank cover 120 is overly opened due to the continuous descent of the push rod 510 can also be avoided.

[0054] The water tank cover detection component 700 can be a photoelectric sensor, a travel switch, a pressure sensor, etc. The embodiments of the present application do not specifically limit the type of the water tank cover detection component 700. In a specific implementation manner, the water tank cover detection component 700 can include a detection swing rod 710 and a second position detection member 720. The detection swing rod 710 can be rotatably arranged on the housing 200, and the first end of the detection swing rod 710 can extend outside the housing 200. The second position detection member 720 can be arranged on the housing 200. During the process of the second motor 520 driving the push rod 510 to descend to open the water tank cover 120, the water tank cover 120 rotates, and the first end of the detection swing rod 710 can contact the water tank cover 120, so that the water tank cover 120 can drive the detection swing rod 710 to rotate. The second position detection member 720 can be used to detect whether the detection swing rod 710 rotates to the second preset position. When the second position detection member 720 detects that the detection swing rod 710 rotates to the second preset position, the controller can control the second motor 520 to stop driving the push rod 510 to continue descending.

[0055] It should be noted that the second preset position of the detection swing rod 710 corresponds to the preset opening degree of the water tank cover 120. When the second position detection member 720 detects that the detection swing rod 710 rotates to the second preset position, it indicates that the water tank cover 120 has been opened to the preset opening degree.

[0056] In the water addition and drainage device disclosed in the embodiments of the present application, by setting the water tank cover detection component 700 to include the detection swing rod 710 and the second position detection member 720, the second position detection member 720 can detect whether the detection swing rod 710 rotates to the second preset position. When the second position detection member 720 detects that the detection swing rod 710 rotates to the second preset position, the controller controls the second motor 520 to stop driving the push rod 510 to continue descending, so that the water tank cover 120 is maintained at the position of the preset opening degree. Since both the second position detection member 720 and the detection swing rod 710 are located in the housing 200, the angle at which the second position detection member 720 detects the detection swing rod 710 is relatively stable, and thus the result of detecting whether the water tank cover 120 is opened to the preset opening degree is also more stable.

[0057] Specifically, the second position detection member 720 can be a photoelectric sensor, a travel switch, a pressure sensor, etc. The embodiments of the present application do not specifically limit the type of the second position detection member 720.

[0058] After the water addition and drainage main body 300 completes the water addition and drainage operation for the water tank main body 110 through the sewage channel 310 and the clean water channel 320, it is necessary to ensure that the cleaning robot can move only after the water addition and drainage main body 300 rises to the third preset position, so as to avoid interference between the water addition and drainage main body 300 and the cleaning robot. Optionally, in order to ensure that the water addition and drainage main body 300 rises to the third preset position after the water addition and drainage operation is completed, the water addition and drainage device may further include a controller and a third position detector 620. Both the third position detector 620 and the first motor 410 can be connected to the controller. The third position detector 620 can be used to detect whether the water addition and drainage main body 300 has risen to the third preset position. When the third position detector 620 detects that the water addition and drainage main body 300 has risen to the third preset position, the controller controls the first motor 410 to stop driving the water addition and drainage main body 300 to continue rising, so as to ensure that the water addition and drainage main body 300 rises to the third preset position after the water addition and drainage operation is completed, and further prevent interference between the drainage main body 300 and the cleaning robot. Moreover, when the third position detector 620 detects that the water addition and drainage main body 300 has risen to the third preset position, the controller controls the first motor 410 to stop driving the water addition and drainage main body 300 to continue rising, so as to avoid excessive elevation of the water addition and drainage main body 300.

[0059] Specifically, the third position detector 620 may be a photoelectric sensor, a travel switch, a pressure sensor, etc. The embodiments of the present application do not specifically limit the type of the third position detector 620.

[0060] Optionally, in order to facilitate the maintenance of the water addition and drainage device, the housing 200 may include a first housing portion 210 and a second housing portion 220. The first housing portion 210 and the second housing portion 220 are detachably connected. The first housing portion 210 and the second housing portion 220 can enclose an accommodation cavity, and at least part of the first driving mechanism 400 and the water addition and drainage main body 300 can be located in the accommodation space.

[0061] By setting the housing 200 of the water addition and drainage device disclosed in the embodiments of the present application as the detachable first housing portion 210 and the second housing portion 220, the components in the accommodation cavity can be maintained by disassembling the first housing portion 210 and the second housing portion 220.

[0062] The water outlet of the sewage channel 310 of the water addition and drainage main body 300 can be communicated with the sewage discharge power source. The sewage discharge power source can discharge the sewage in the water tank 100 through the sewage channel 310. The sewage discharge power source can be provided on the water addition and drainage main body 300, so that it can rise and fall together with the water addition and drainage main body 300. Therefore, the sewage discharge power source can be directly provided at the water outlet of the sewage channel 310.

[0063] However, in another case, the sewage power source can be fixed outside the water addition and drainage device. In order to adapt to the connection between the water addition and drainage main body 300 and the sewage power source when the water addition and drainage main body 300 is lifted or lowered, optionally, the water addition and drainage device can further include a corrugated pipe 800. The corrugated pipe 800 can be connected to the water outlet of the sewage channel 310 and is located outside the housing 200. One end of the corrugated pipe 800 can be connected to the water outlet of the sewage channel 310, and the other end of the corrugated pipe 800 can be connected to the sewage power source. When the water addition and drainage main body 300 moves up and down, the corrugated pipe 800 can expand and contract.

[0064] Optionally, the clean water channel 320 can include a water replenishment flexible joint 321, and the water replenishment flexible joint 321 can be arranged at the water outlet of the clean water channel 320. When the docking position of the cleaning robot is relatively accurate, the water replenishment flexible joint 321 can be opposite to the opening of the clean water tank of the water tank 100, so that water can be added into the clean water tank. When there is a large deviation in the docking position of the cleaning robot, the water outlet of the clean water channel 320 may interfere with the water tank 100 in the lifting direction. By arranging the water replenishment flexible joint 321, when the water outlet of the clean water channel 320 interferes with the water tank 100 in the lifting direction, the water replenishment flexible joint 321 can be deformed to buffer the impact, and thus the clean water channel 320 and the water tank 100 can be protected. The water inlet of the clean water channel 320 can be connected to the clean water pipe 900 for adding water into the water tank 100 through the clean water channel 320.

[0065] This application also discloses a cleaning device, and the disclosed cleaning device includes a cleaning base station and a cleaning robot. Among them, the cleaning base station includes the water addition and drainage device disclosed in the above embodiments, and the cleaning robot includes a water tank 100.

[0066] By setting the cleaning base station to include the water addition and drainage device disclosed in the above embodiments, the cleaning device disclosed in the embodiments of this application can reduce the number of components of the water addition and drainage device, which is beneficial to the miniaturized design of the water addition and drainage device.

[0067] In the above embodiments of the present utility model, the differences between the various embodiments are mainly described. As long as the different optimized features between the various embodiments are not contradictory, they can be combined to form a more optimal embodiment. Considering the simplicity of the text, it will not be elaborated here.

[0068] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims, and all of them belong to the protection scope of the present utility model.

Claims

1. A water supply and drainage device for performing water supply and drainage operations on a water tank (100) of a cleaning robot, characterized in that: The water supply and drainage device comprises a housing (200), a water supply and drainage main body (300) and a first driving mechanism (400); the water supply and drainage main body (300) is movably arranged on the housing (200); the water supply and drainage main body (300) has a sewage channel (310) and a clean water channel (320); the water supply and drainage main body (300) is provided with a first rack portion (330); the water inlet of the sewage channel (310) and the water outlet of the clean water channel (320) both extend to the housing (200); In addition, the first driving mechanism (400) includes a first motor (410) and a first gear (420), the first motor (410) is disposed on the housing (200), the first motor (410) is connected to the first gear (420), the first gear (420) is meshed with the first rack portion (330), and the first motor (410) is used to drive the drainage body (300) to rise and fall through the meshing of the first gear (420) and the first rack portion (330).

2. The drainage device according to claim 1, characterized in that: The water tank (100) comprises a water tank body (110) and a water tank cover (120), wherein the water tank cover (120) is rotatably arranged on the water tank body (110), and the water supply and drainage device further comprises a water tank cover switch assembly (500), wherein the water tank cover switch assembly (500) comprises a push rod (510), a second motor (520) and a second gear (530), wherein the push rod (510) is movably arranged on the housing (200), wherein the push rod (510) has a second rack portion (511), and the second motor (520) is configured to move the push rod (510) and the second gear (530) ... 20) is arranged on the housing (200), the second gear (530) is connected to the second motor (520), and the second motor (520) drives the push rod (510) to rise and fall through the engagement of the second gear (530) and the second rack portion (511), so that the push rod (510) opens or closes the water tank cover (120), and the water supply and drainage main body (300) performs water supply and drainage operations on the water tank body (110) through the sewage channel (310) and the clean water channel (320).

3. The drainage device according to claim 2, characterized in that: The push rod (510) includes a push rod body (512) and a buffer head (513), wherein the push rod body (512) is connected to the buffer head (513), the push rod body (512) has the second rack portion (511), and at least a portion of the buffer head (513) extends out of the shell (200) for opening or closing the water tank cover (120).

4. The drainage device according to claim 3, characterized in that: The buffer head (513) comprises a spring (513a) and a flexible sleeve (513b), wherein the spring (513a) is connected to the push rod body (512), and the flexible sleeve (513b) is sleeved on the spring (513a).

5. The drainage device according to claim 2, characterized in that: The drainage device further comprises a controller and a first position detection member (610), wherein the first position detection member (610) is disposed on the housing (200), the first position detection member (610) and the second motor (520) are both connected to the controller, and the first position detection member (610) is used to detect whether the push rod (510) rises to a first preset position; When the first position detection member (610) detects that the push rod (510) has risen to the first preset position, the controller controls the second motor (520) to stop driving the push rod (510) to continue rising.

6. The drainage device according to claim 2, characterized in that: The water supply and drainage device further comprises a controller and a water tank cover detection component (700), wherein the water tank cover detection component (700) is arranged on the housing (200), the water tank cover detection component (700) and the second motor (520) are both connected to the controller, and the water tank cover detection component (700) is used to detect whether the water tank cover (120) is opened to a preset opening; When the water tank cover detection component (700) detects that the water tank cover (120) is opened to the preset opening degree, the controller controls the second motor (520) to stop driving the push rod (510) to continue to descend.

7. The drainage device according to claim 6, characterized in that: The water tank cover detection assembly (700) comprises a detection swing rod (710) and a second position detection member (720); the detection swing rod (710) is rotatably disposed on the housing (200), and a first end of the detection swing rod (710) extends out of the housing (200); and the second position detection member (720) is disposed on the housing (200); When the second motor (520) drives the push rod (510) to descend to open the water tank cover (120), the first end of the detection rocker (710) contacts the water tank cover (120) so that the water tank cover (120) drives the detection rocker (710) to rotate, and the second position detection component (720) is used to detect whether the detection rocker (710) rotates to the second preset position; when the second position detection component (720) detects that the detection rocker (710) rotates to the second preset position, the controller controls the second motor (520) to stop driving the push rod (510) to continue descending.

8. The drainage device according to claim 1, characterized in that: The water supply and drainage device further comprises a controller and a third position detection member (620), wherein the third position detection member (620) and the first motor (410) are both connected to the controller, and the third position detection member (620) is used to detect whether the water supply and drainage body (300) rises to a third preset position; When the third position detection member (620) detects that the drainage adding and draining body (300) has risen to the third preset position, the controller controls the first motor (410) to stop driving the drainage adding and draining body (300) to continue rising.

9. The drainage device according to claim 1, characterized in that: The drainage device further comprises a bellows (800), wherein the bellows (800) is connected to the water outlet of the sewage channel (310) and is located outside the housing (200).

10. A cleaning device, characterized in that: It comprises a cleaning base station and a cleaning robot, wherein the cleaning base station comprises the water supply and drainage device according to any one of claims 1 to 9, and the cleaning robot comprises the water tank (100).

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