Water tank assembly, cleaning robot and cleaning system

Abstract

The invention discloses a water tank assembly, a cleaning robot and a cleaning system.The water tank assembly is provided with a shell with an upper cavity and a lower cavity and an air pump; the upper cavity is at least divided into a mounting cavity and an upper liquid storage cavity, a mounting hole is formed in the cavity bottom of the mounting cavity, and a first connecting hole and a second connecting hole are formed in the cavity bottom of the upper liquid storage cavity; the lower cavity is divided into a lower liquid storage cavity and a liquid outlet cavity, the mounting cavity is communicated with the lower liquid storage cavity through a mounting hole, and the upper liquid storage cavity is communicated with the lower liquid storage cavity through a first connecting hole; the upper liquid storage cavity further communicates with the liquid outlet cavity through the second connecting hole, and a liquid outlet is formed in the cavity bottom of the liquid outlet cavity. The air pump is installed in the installation cavity and is in sealed connection with the installation hole. By means of the arrangement, the air pump conveys air to the lower liquid storage cavity, the air pressure difference is generated between the lower liquid storage cavity and the upper liquid storage cavity through the first connecting hole, liquid can be pressed into the liquid outlet cavity from the second connecting hole and extruded out of the liquid outlet, and therefore the shell is of a two-layer structure, sealing of the air pump is achieved, and the structure of the water tank is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly relates to a water tank assembly, a cleaning robot, and a cleaning system. Background Art

[0002] Cleaning robots are mainly used to replace manual labor in cleaning the home environment. A cleaning robot includes a machine body, a water tank is installed on the machine body, and a cleaning module is installed at the bottom of the cleaning robot. The water tank assembly supplies water to the cleaning module for floor cleaning.

[0003] However, in the existing cleaning robot, an air pump is used to output water in the water tank assembly. The air pump is fixedly installed with an additional fixing plate for isolating moisture, which results in the need to use three layers of shells for the water tank assembly to seal and install the air pump, thus increasing labor costs during production and assembly, and the assembly method is complex. Therefore, it is urgently needed to be improved. Summary of the Invention

[0004] The main purpose of the present invention is to provide a water tank assembly, aiming to optimize the structure of the water tank assembly.

[0005] To achieve the above object, the water tank assembly proposed by the present invention includes a shell having an upper cavity and a lower cavity, and an air pump; wherein,

[0006] The upper cavity is at least divided into an installation cavity and an upper liquid storage cavity. An installation hole is provided at the bottom of the installation cavity, and a first connection hole and a second connection hole are provided at the bottom of the upper liquid storage cavity;

[0007] The lower cavity is divided into a lower liquid storage cavity and a liquid outlet cavity. The installation cavity is communicated with the lower liquid storage cavity through the installation hole, and the upper liquid storage cavity is communicated with the lower liquid storage cavity through the first connection hole;

[0008] The upper liquid storage cavity is also communicated with the liquid outlet cavity through the second connection hole, and a liquid outlet is provided at the bottom of the liquid outlet cavity;

[0009] The air pump is installed in the installation cavity, and the air outlet end of the air pump is hermetically connected to the installation hole.

[0010] With this setting, the air pump conveys gas to the lower liquid storage cavity. The gas causes a pressure difference between the lower liquid storage cavity and the upper liquid storage cavity through the first connection hole. The liquid will be pressed into the liquid outlet cavity through the second connection hole and extruded from the liquid outlet. Thus, the shell has a two-layer structure to realize the sealing of the air pump, and further optimizes the structure of the water tank.

[0011] In some embodiments of the present invention, the housing includes an upper housing and a lower housing. A first accommodation groove and a second accommodation groove are provided on the surface of the upper housing facing the lower housing. A third accommodation groove and a fourth accommodation groove are provided on the surface of the lower housing facing the upper housing. A lower cavity is provided below the third accommodation groove and the fourth accommodation groove. An installation hole is further provided at the bottom of the third accommodation groove, and a first connection hole and a second connection hole are provided at the bottom of the fourth accommodation groove.

[0012] The upper housing is installed on the lower housing. The first accommodation groove and the third accommodation groove enclose to form the installation cavity, and the second accommodation groove and the fourth accommodation groove enclose to form the upper liquid storage cavity.

[0013] With such a setting, before the upper housing is installed on the lower housing, the air pump is first installed in the installation cavity, and the air outlet end of the air pump is hermetically connected to the installation hole. Finally, the upper housing is installed on the lower housing. This can provide more installation space for the installation of the air pump, thus facilitating the installation of the air pump and further improving the overall assembly efficiency of the water tank assembly.

[0014] In some embodiments of the present invention, a dispensing protrusion is convexly provided on the surface of the upper housing facing the lower housing, and the dispensing protrusion surrounds the openings of the first accommodation groove and the second accommodation groove.

[0015] A dispensing groove is concavely provided on the surface of the lower housing facing the upper housing, and the dispensing groove surrounds the openings of the third accommodation groove and the fourth accommodation groove. The dispensing protrusion is inserted and matched with the dispensing groove to hermetically separate the installation cavity and the upper liquid storage cavity.

[0016] With such a setting, the dispensing protrusion of the upper housing and the dispensing groove of the lower housing are sealed by dispensing, thereby improving the sealing performance of the installation cavity and further preventing the liquid in the upper liquid storage cavity from flowing into the installation cavity through the gap between the upper housing and the lower housing.

[0017] In some embodiments of the present invention, an installation groove is provided on the cavity wall of the installation cavity away from the lower cavity, and the air pump is installed in the installation groove.

[0018] A limiting convex portion is convexly provided at the bottom of the installation cavity, and the surface of the limiting convex portion away from the lower cavity abuts against the air pump.

[0019] With such a setting, the air pump is installed on the cavity wall of the installation cavity away from the lower cavity, so that the air pump and the installation hole are respectively located on two opposite cavity walls of the installation cavity. Further, when the air outlet end of the air pump is connected to the installation hole through a trachea, the trachea will not be greatly bent. In this way, the air pump can better transport gas to the lower liquid storage cavity through the trachea. At the same time, the air pump is limited by the abutment of the limiting convex portion, thereby preventing the air pump from disengaging from the installation groove when the water tank assembly shakes.

[0020] In some embodiments of the present invention, a connecting protrusion protrudes from the bottom of the installation cavity, and the connecting protrusion penetrates along the direction away from the lower cavity to form the installation hole.

[0021] With such a setting, the distance between the installation hole and the air outlet end of the air pump is closer, thereby reducing the length of the air pipe connecting the installation hole and the air outlet end of the air pump, and further facilitating the sealed connection between the installation hole and the air outlet end of the air pump.

[0022] In some embodiments of the present invention, a boss protrudes from the bottom of the upper liquid storage cavity, and the boss partially penetrates to form the second connection hole, so that one end of the second connection hole away from the lower cavity is spaced from one end of the first connection hole away from the lower cavity.

[0023] With such a setting, when adding liquid to the upper liquid storage cavity, the liquid will first flow into the lower liquid storage cavity from the first connection hole, and the liquid level in the upper liquid storage cavity will only rise after the lower liquid storage cavity is filled. In this way, it is ensured that the lower liquid storage cavity is filled first, so that the air pump can better generate a pressure difference between the upper liquid storage cavity and the lower liquid storage cavity.

[0024] In some embodiments of the present invention, the lower liquid storage cavity surrounds the circumference of the liquid outlet cavity.

[0025] With such a setting, the liquid outlet cavity is located in the lower liquid storage cavity, thereby making full use of the space of the lower cavity, and further reducing the overall volume of the water tank assembly.

[0026] In some embodiments of the present invention, the water tank assembly further includes a one-way valve, and the one-way valve is hermetically installed at one end of the installation hole close to the lower cavity.

[0027] With such a setting, by hermetically connecting the one-way valve to one end of the installation hole close to the lower cavity, when the air outlet end of the air pump conveys gas to the installation hole, the gas can enter the lower liquid storage cavity through the one-way valve, and the liquid in the lower liquid storage cavity will be blocked by the one-way valve, so that it will not enter the installation hole, thereby playing a role in protecting the air pump.

[0028] In some embodiments of the present invention, the upper cavity is further partitioned to form at least one device installation cavity, and wire passing holes are provided at the bottoms of the at least one device installation cavity;

[0029] The lower cavity is further partitioned to form a wire passing channel, and the at least one device installation cavity and the installation cavity are both communicated with the wire passing channel through the corresponding wire passing holes.

[0030] With such a setting, at least two device mounting cavities are connected through the wire passing channel, so that the electronic components in the device mounting cavity can be electrically connected to the electronic components located in other device mounting cavities through wires passing through the wire passing channel. Furthermore, with a two-layer structure of the housing, the wiring of the electronic components can be achieved, thus optimizing the structure of the water tank assembly. At the same time, at least two device mounting cavities are separated from the upper liquid storage cavity to prevent the water in the upper liquid storage cavity from affecting the electronic components.

[0031] The present invention also provides a cleaning robot, which includes a machine body, a traveling module, a cleaning module, and a water tank assembly. The traveling module and the cleaning module are arranged at the bottom of the machine body, and the water tank assembly is arranged inside the machine body.

[0032] The water tank assembly includes a housing having an upper cavity and a lower cavity, and an air pump.

[0033] The upper cavity is at least partitioned into a mounting cavity and an upper liquid storage cavity. An installation hole is provided at the bottom of the mounting cavity, and a first connection hole and a second connection hole are provided at the bottom of the upper liquid storage cavity.

[0034] The lower cavity is partitioned into a lower liquid storage cavity and a liquid outlet cavity. The mounting cavity is communicated with the lower liquid storage cavity through the installation hole, and the upper liquid storage cavity is communicated with the lower liquid storage cavity through the first connection hole.

[0035] The upper liquid storage cavity is also communicated with the liquid outlet cavity through the second connection hole, and a liquid outlet is provided at the bottom of the liquid outlet cavity.

[0036] The air pump is installed in the mounting cavity, and the air outlet end of the air pump is hermetically connected to the installation hole.

[0037] The present invention also provides a cleaning system, which includes the above-mentioned cleaning robot and a docking station. The docking station includes a platform for the cleaning robot to dock.

[0038] The technical solution of the present invention is to provide an upper cavity and a lower cavity in the housing. The upper cavity is at least divided into an installation cavity and an upper liquid storage cavity. An installation hole is provided at the bottom of the installation cavity, and a first connection hole and a second connection hole are provided at the bottom of the upper liquid storage cavity. The lower cavity is divided into a lower liquid storage cavity and a liquid outlet cavity. The installation cavity is communicated with the lower liquid storage cavity through the installation hole. The upper liquid storage cavity is communicated with the lower liquid storage cavity through the first connection hole. The upper liquid storage cavity is also communicated with the liquid outlet cavity through the second connection hole. A liquid outlet is provided at the bottom of the liquid outlet cavity. The air pump is installed in the installation cavity and is hermetically connected to the installation hole. With such a setting, the air pump conveys gas to the lower liquid storage cavity. The gas causes a pressure difference between the lower liquid storage cavity and the upper liquid storage cavity through the first connection hole. The liquid is pressed into the liquid outlet cavity through the second connection hole and extruded from the liquid outlet. Thus, the housing is a two-layer structure to achieve the sealing of the air pump, and further optimize the structure of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0040] Figure 1 It is a schematic structural diagram of an embodiment of the water tank assembly of the present invention;

[0041] Figure 2 It is Figure 1 a cross-sectional view of;

[0042] Figure 3 It is Figure 1 an exploded view of;

[0043] Figure 4 It is Figure 3 a schematic structural diagram of the upper shell and the lower shell in;

[0044] Figure 5 It is Figure 1 a schematic structural diagram of the box body in;

[0045] Figure 6 It is Figure 1 a schematic structural diagram of the cover plate in.

[0046] Explanation of the reference numerals in the drawings:

[0047] Label Name Label Name 1000 Water tank assembly 122a Liquid outlet 100 Shell 123 Wire passing channel 110 Upper cavity 130 Upper shell 111 Installation cavity 131 First accommodating groove 111a Installation hole 132 Second accommodating groove 111b Installation groove 133 Glue dispensing protrusion 111c Limit convex part 140 Lower shell 111d Connection protrusion 141 Third accommodating groove 112 Upper liquid storage cavity 142 Fourth accommodating groove 112a First connection hole 143 Glue dispensing groove 112b Second connection hole 150 Box body 112c Boss 160 Cover body 112d Liquid inlet 200 Air pump 113 Device installation cavity 300 One-way valve 113a Wire passing hole 400 Water tank cover 120 Lower cavity 500 Pole piece 121 Lower liquid storage cavity 600 Electrode plate 122 Liquid outlet cavity 700 Wire

[0048] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0051] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0052] Please refer to Figures 1 to 3 , the present invention provides a water tank assembly 1000, which is applied to a cleaning robot and is usually arranged on the main body of the cleaning robot. The walking module drives the cleaning robot to walk on the working surface, which can be the ground, wall, or window. The cleaning robot cleans garbage, dust, paper scraps, hair, etc. on the walking path of the working surface through the cleaning module, and cleans the working surface with the clear water or cleaning liquid stored in the water tank assembly 1000, or stores the sewage on the walking path in the water tank assembly 1000.

[0053] The water tank assembly 1000 includes a housing 100 having an upper cavity 110 and a lower cavity 120. There are many types of materials for making the housing 100. The housing 100 can be made of metal materials, or can be made of footstep plastics, or can also be made of other materials, which are not specifically limited herein. The upper cavity 110 is located on the side of the lower cavity 120 away from the working surface. The bottom of the cavity is the cavity wall close to the working surface.

[0054] The upper cavity 110 is at least divided into an installation cavity 111 and an upper liquid storage cavity 112. An installation hole 111a is provided at the bottom of the installation cavity 111. A first connection hole 112a and a second connection hole 112b are provided at the bottom of the upper liquid storage cavity 112. The upper cavity 110 may be divided into multiple installation cavities 111. The upper cavity 110 may also be divided into a cavity for installing electrodes or electrode plates. The upper cavity 110 may also be divided into a cavity for installing other components, which are not specifically defined here. The shape of the installation cavity 111 has many types. The installation cavity 111 may be rectangular, or triangular, or of other shapes, which are not specifically defined here.

[0055] An installation hole 111a is provided at the bottom of the installation cavity 111. The shape of the installation hole 111a has many types. The installation hole 111a may be square, or circular, or of other shapes, which are not specifically defined here.

[0056] A first connection hole 112a and a second connection hole 112b are provided at the bottom of the upper liquid storage cavity 112. The shape of the first connection hole 112a has many types. The first connection hole 112a may be square, or circular, or of other shapes, which are not specifically defined here. The shape of the second connection hole 112b has many types. The second connection hole 112b may be square, or circular, or of other shapes, which are not specifically defined here.

[0057] The lower cavity 120 is divided into a lower liquid storage cavity 121 and a liquid outlet cavity 122. The installation cavity 111 is communicated with the lower liquid storage cavity 121 through the installation hole 111a. The upper liquid storage cavity 112 is communicated with the lower liquid storage cavity 121 through the first connection hole 112a. It can be understood that the liquid in the upper liquid storage cavity 112 can flow into the lower liquid storage cavity 121 through the first connection hole 112a.

[0058] The upper liquid storage cavity 112 is also communicated with the liquid outlet cavity 122 through the second connection hole 112b, and a liquid outlet 122a is provided at the bottom of the liquid outlet cavity 122. In this way, the liquid in the upper liquid storage cavity 112 can flow into the liquid outlet cavity 122 from the second connection hole 112b, and then can flow out from the liquid outlet 122a. Since the upper liquid storage cavity 112 and the lower liquid storage cavity 121 are sealed spaces, and the liquid in the liquid outlet cavity 122 covers the liquid outlet 122a, when the air pressures in the upper liquid storage cavity 112, the lower liquid storage cavity 121 and the liquid outlet cavity 122 do not change, the liquid in the liquid outlet cavity 122 will not flow out from the liquid outlet 122a under the influence of gravity.

[0059] The shape of the liquid outlet 122a has many types. The liquid outlet 122a can be formed by arranging multiple small holes, or it can be formed by a single hole. No specific limitation is made here. The shape of the liquid outlet 122a has many types. The liquid outlet 122a can be circular, or it can be square, or it can be of other shapes. No specific limitation is made here.

[0060] The air pump 200 is installed in the installation cavity 111. The air outlet end of the air pump 200 is hermetically connected to the installation hole 111a. There are many ways to install the air pump 200 in the installation cavity 111. The air pump 200 can be installed in the installation cavity 111 by screw connection, or it can be installed in the installation cavity 111 by snap connection, or it can be installed in the installation cavity 111 by other means. No specific limitation is made here. There are many ways to hermetically connect the air outlet end of the air pump 200 to the installation hole 111a. For example, the air outlet end of the air pump 200 is hermetically connected by inserting a conduit into the installation hole 111a; another example is that an annular groove is recessed at the bottom of the installation cavity 111, and the installation hole 111a penetrates through the center position of the annular groove. The air outlet end of the air pump 200 is hermetically sleeved on the center position of the annular groove by an air pipe. They are not listed one by one here.

[0061] There are many types of the air pump 200. The air pump 200 can be an electric air pump 200, or it can be a hydraulic air pump 200, or it can be a pneumatic air pump 200. No specific limitation is made here. Since the air inlet end of the air pump 200 needs to intake air during operation, the installation cavity 111 is provided with an air inlet communicating with the outside, so that the air pump 200 can work normally.

[0062] The housing 100 also has a built-in dirt collection cavity, and a dirt outlet channel communicating with the dirt collection cavity is recessed on one side surface of the housing 100. When the outer shape of the housing 100 is adapted to the internal space of the cleaning robot, the utilization efficiency of the internal space of the cleaning robot can be improved, and the size of the cleaning robot can be made smaller.

[0063] Among them, the base station can extend into the dirt outlet channel to suck the dirt collection cavity. A stepped groove for docking with the base station can be provided on the outside of the dirt outlet channel to improve the docking efficiency and sealing performance between the cleaning robot and the base station. The base station can also be docked with the dirt outlet channel through a silicone interface. A stepped groove can be recessed at the housing 100 on the outside of the dirt outlet channel to improve the docking efficiency and sealing performance between the cleaning robot and the base station.

[0064] When assembling the water tank group, first install the air pump 200 in the installation cavity 111, and then seal the air outlet end of the air pump 200 with the installation hole 111a. In contrast to the prior art where the water tank assembly 1000 sets the fixing plate as a three-layer structure to seal the installation cavity 111, the water tank assembly 1000 of the present invention is a two-layer structure, thus reducing the setting of the fixing plate, and further reducing the installation of the fixing plate in the assembly process of the existing water tank assembly 1000. In this way, while optimizing the water tank assembly 1000, the overall assembly efficiency of the water tank assembly 1000 is also improved.

[0065] The technical solution of the present invention is to provide an upper cavity 110 and a lower cavity 120 in the housing 100. The upper cavity 110 is at least divided into an installation cavity 111 and an upper liquid storage cavity 112. The bottom of the installation cavity 111 is provided with an installation hole 111a. The bottom of the upper liquid storage cavity 112 is provided with a first connection hole 112a and a second connection hole 112b. The lower cavity 120 is divided into a lower liquid storage cavity 121 and a liquid outlet cavity 122. The installation cavity 111 is communicated with the lower liquid storage cavity 121 through the installation hole 111a. The upper liquid storage cavity 112 is communicated with the lower liquid storage cavity 121 through the first connection hole 112a. The upper liquid storage cavity 112 is also communicated with the liquid outlet cavity 122 through the second connection hole 112b. The bottom of the liquid outlet cavity 122 is provided with a liquid outlet 122a. The air pump 200 is installed in the installation cavity 111 and is hermetically connected to the installation hole 111a. With such a setting, the air pump 200 conveys gas to the lower liquid storage cavity 121. The gas causes a pressure difference between the lower liquid storage cavity 121 and the upper liquid storage cavity 112 through the first connection hole 112a. The liquid is pressed into the liquid outlet cavity 122 through the second connection hole 112b and extruded from the liquid outlet 122a. Thus, the housing 100 is a two-layer structure to realize the sealing of the air pump 200, and further optimizes the structure of the water tank.

[0066] Please refer to Figures 1 to 4 , in some embodiments of the present invention, the housing 100 includes an upper shell 130 and a lower shell 140. The surface of the upper shell 130 facing the lower shell 140 is provided with a first accommodation groove 131 and a second accommodation groove 132. The surface of the lower shell 140 facing the upper shell 130 is provided with a third accommodation groove 141 and a fourth accommodation groove 142. The lower cavity 120 is provided below the third accommodation groove 141 and the fourth accommodation groove 142. The bottom of the third accommodation groove 141 is also provided with an installation hole 111a. The bottom of the fourth accommodation groove 142 is provided with a first connection hole 112a and a second connection hole 112b. The upper shell 130 is installed on the lower shell 140. The first accommodation groove 131 and the third accommodation groove 141 enclose to form the installation cavity 111. The second accommodation groove 132 and the fourth accommodation groove 142 enclose to form the upper liquid storage cavity 112.

[0067] With such an arrangement, before the upper shell 130 is installed on the lower shell 140, the air pump 200 is first installed in the installation cavity 111, and the air outlet end of the air pump 200 is hermetically connected to the installation hole 111a. Finally, the upper shell 130 is installed on the lower shell 140. This can provide more installation space for the installation of the air pump 200, thus facilitating the installation of the air pump 200 and further improving the overall assembly efficiency of the water tank assembly 1000.

[0068] Further, please also refer to Figures 1 to 4 , on the surface of the upper shell 130 facing the lower shell 140, there is a dispensing projection 133 protruding. The dispensing projection 133 surrounds the openings of the first accommodating groove 131 and the second accommodating groove 132; on the surface of the lower shell 140 facing the upper shell 130, there is a dispensing groove 143 recessed. The dispensing groove 143 surrounds the openings of the third accommodating groove 141 and the fourth accommodating groove 142. The dispensing projection 133 and the dispensing groove 143 are inserted and matched to hermetically separate the installation cavity 111 and the upper liquid storage cavity 112.

[0069] With such an arrangement, the dispensing projection 133 of the upper shell 130 and the dispensing groove 143 of the lower shell 140 are sealed by dispensing, thereby improving the sealing performance of the installation cavity 111 and further preventing the liquid in the upper liquid storage cavity 112 from flowing into the installation cavity 111 through the gap between the upper shell 130 and the lower shell 140.

[0070] Please also refer to Figures 1 to 4 , in some embodiments of the present invention, on the cavity wall of the installation cavity 111 far from the lower cavity 120, there is an installation groove 111b, and the air pump 200 is installed in the installation groove 111b; on the bottom of the installation cavity 111, there is a limiting convex portion 111c protruding. The surface of the limiting convex portion 111c far from the lower cavity 120 abuts against the air pump 200. With such an arrangement, the air pump 200 is installed on the cavity wall of the installation cavity 111 far from the lower cavity 120, so that the air pump 200 and the installation hole 111a are respectively located on two opposite cavity walls of the installation cavity 111. Further, when the air outlet end of the air pump 200 is connected to the installation hole 111a through a trachea, the trachea will not be bent greatly. In this way, the air pump 200 can better transport gas to the lower liquid storage cavity 121 through the trachea. At the same time, by abutting the limiting convex portion 111c against the air pump 200, the air pump 200 is limited, and further, when the water tank assembly 1000 shakes, the air pump 200 is prevented from disengaging from the installation groove 111b.

[0071] There are many orientations for the air outlet end of the air pump 200. For example, when the air outlet end of the air pump 200 faces the wall of the installation groove 111b, an avoidance hole needs to be provided on the wall of the installation groove 111b so that the air outlet end of the air pump 200 is exposed from the avoidance position, facilitating the sealed connection between the air outlet end of the air pump 200 and the installation hole 111a; when the air outlet end of the air pump 200 faces the bottom of the installation cavity 111, the limiting convex portion 111c needs to avoid the air outlet end of the air pump 200, facilitating the sealed connection between the air outlet end of the air pump 200 and the installation hole 111a, and not listing them one by one here. There are many shapes for the limiting convex portion 111c. The limiting convex portion 111c is composed of multiple spaced-apart limiting convex portions 111c, and the limiting convex portion 111c can also be a protrusion with a T-shaped cross-section, without specific limitation here.

[0072] Further, please refer to Figures 1 to 4 simultaneously. A connecting protrusion 111d protrudes from the bottom of the installation cavity 111, and the connecting protrusion 111d penetrates through to form the installation hole 111a along the direction away from the lower cavity 120. With this setting, the distance between the installation hole 111a and the air outlet end of the air pump 200 is closer, thereby reducing the length of the air pipe connecting the installation hole 111a and the air outlet end of the air pump 200, and further facilitating the sealed connection between the installation hole 111a and the air outlet end of the air pump 200.

[0073] Please refer to Figures 1 to 4 simultaneously. In some embodiments of the present invention, a boss 112c protrudes from the bottom of the upper liquid storage cavity 112, and the boss 112c partially penetrates through to form a second connection hole 112b, such that one end of the second connection hole 112b away from the lower cavity 120 is spaced apart from one end of the first connection hole 112a away from the lower cavity 120. With this setting, when adding liquid to the upper liquid storage cavity 112, the liquid will first flow into the lower liquid storage cavity 121 from the first connection hole 112a, and the liquid level in the upper liquid storage cavity 112 will only rise after the lower liquid storage cavity 121 is filled. This ensures that the lower liquid storage cavity 121 is filled first, so that the air pump 200 can better generate a pressure difference between the upper liquid storage cavity 112 and the lower liquid storage cavity 121.

[0074] It should be noted that there are many shapes for the boss 112c. The boss 112c can be cylindrical, the boss 112c can also be square, and the boss 112c can also be of other shapes, without specific limitation here.

[0075] Please refer to Figures 1 to 4 simultaneously. In some embodiments of the present invention, the lower liquid storage cavity 121 surrounds the circumferential side of the liquid outlet cavity 122. With this setting, the liquid outlet cavity 122 is located within the lower liquid storage cavity 121, thus making full use of the space of the lower cavity 120 and further reducing the overall volume of the water tank assembly 1000.

[0076] Considering that the liquid in the lower liquid storage chamber 121 is prone to flow back into the air pump 200 from the mounting hole 111a due to shaking, which may easily damage the air pump 200. In view of this, please also refer to Figures 1 to 3 , the water tank assembly 1000 further includes a check valve 300, which is hermetically installed at one end of the mounting hole 111a close to the lower cavity 120. With this arrangement, through the hermetic connection between the check valve 300 and the end of the mounting hole 111a close to the lower cavity 120, when the air outlet end of the air pump 200 conveys gas to the mounting hole 111a, the gas can enter the lower liquid storage chamber 121 through the check valve 300. The liquid in the lower liquid storage chamber 121 will be blocked by the check valve 300 and thus will not enter the mounting hole 111a, thereby playing a role in protecting the air pump 200.

[0077] There are many types of the check valve 300. The check valve 300 can be a plastic check valve 300, or a spring check valve 300, or other types, which are not specifically limited here. There are many ways to install the check valve 300 in the mounting hole 111a. The check valve 300 can be installed in the mounting hole 111a by plugging, or by threaded connection, or by snap connection, which are not specifically limited here.

[0078] Please also refer to Figures 1 to 4 , in some embodiments of the present invention, the upper cavity 110 is further partitioned to form at least one device mounting cavity 113, and wire passing holes 113a are provided at the bottom of each of the at least one device mounting cavity 113; the lower cavity 120 is further partitioned to form a wire passing channel 123, and the at least one device mounting cavity 113 and the mounting cavity 111 are both communicated with the wire passing channel 123 through the corresponding wire passing holes 113a.

[0079] With this arrangement, the at least two device mounting cavities 113 are communicated through the wire passing channel 123, so that the electronic components in the device mounting cavity 113 can be electrically connected to the electronic components in other device mounting cavities 113 through wires 700 passing through the wire passing channel 123. Thus, the wiring of the electronic components can be realized with the housing 100 having a two-layer structure, which optimizes the structure of the water tank assembly 1000. At the same time, the at least two device mounting cavities 113 are separated from the upper liquid storage cavity 112 to prevent the water in the upper liquid storage cavity 112 from affecting the electronic components.

[0080] When assembling the water tank assembly 1000, first install the electronic components in the corresponding device installation cavity 113, and then connect one end of the wire 700 to the electronic component. The other end of the wire 700 passes through the wire passing hole 113a of the corresponding device installation cavity 113 and enters the wire passing channel 123, and then the wire 700 passes through another wire passing hole 113a and enters the corresponding device installation cavity 113 to be connected to the corresponding electronic component. In this way, compared with the prior art water tank assembly 1000 which is set as a three-layer structure through a wire passing board, the water tank assembly 1000 of the present invention is a two-layer structure, thereby reducing the setting of the wire passing board, and further reducing the installation of the wire passing board in the assembly process of the prior art water tank assembly 1000. In this way, while optimizing the water tank assembly 1000, the overall assembly efficiency of the water tank assembly 1000 is improved.

[0081] Specifically, the housing 100 includes a box body 150 and a cover plate 160. The cover plate 160 is provided with a liquid outlet 122a. The cover plate 160 is installed at the bottom of the box body 150, and the cover plate 160 and the bottom of the box body 150 enclose to form a lower cavity 120. With such a setting, before installing the cover plate 160, the wires 700 connecting the electronic components in each device installation cavity 113 are routed through the wire passing channel 123, and then the cover plate 160 is installed at the bottom of the box body 150, thereby facilitating the assembly of the water tank assembly 1000.

[0082] The water tank assembly 1000 further includes a pole piece 500, two electrode plates 600 and two wires 700. The pole piece 500 and the two electrode plates 600 are respectively installed in different device installation cavities 113 and are exposed outside the housing 100; one ends of the two wires 700 are electrically connected to the pole piece 500, and the other ends of the two wires 700 pass through the wire passing holes 113a and the wire passing channel 123 and are electrically connected to the corresponding two electrode plates 600. With such a setting, the water tank assembly 1000 realizes the post-charge function by setting the pole piece 500 and the two electrode plates 600.

[0083] In order to facilitate the pole piece 500 and the two electrode plates 600 to be exposed outside the housing 100, at least two device installation cavities 113 are arranged close to the outer peripheral wall of the housing 100 and are arranged at intervals along the circumferential direction of the housing 100. With such a setting, the space occupied by the exposure of the pole piece 500 and the two electrode plates 600 is smaller, thereby providing more space for the upper liquid storage cavity 112, and further enabling the water tank assembly 1000 to store more liquid, thus improving the universality of the water tank assembly 1000.

[0084] Preferably, the pole piece 500 is located at both ends of the two electrode plates 600 in the circumferential direction of the shell 100. With this arrangement, the pole piece 500 is electrically connected to the battery of the cleaning robot. The two electrode plates 600 correspond to the positive and negative charging plates of the base station respectively. After the water tank assembly 1000 is installed on the machine body, the circumferential side of the pole piece 500 is blocked due to the connection with the battery of the cleaning robot. Since the two electrode plates 600 are located on the same side of the pole piece 500 in the circumferential direction of the shell 100, there is no need to avoid the two electrode plates 600 separately, thereby optimizing the structure of the cleaning robot.

[0085] For further information, please also refer to Figures 1 to 6 The device mounting cavity 113 is penetrated by a mounting hole connected to the external environment, and the pole piece 500 and the two electrode plates 600 are exposed to the shell 100 through the corresponding mounting holes; the inner wall of the mounting hole is convexly provided with a limiting protrusion, and the limiting protrusion is located at one end of the mounting hole close to the device mounting cavity 113. After the pole piece 500 and / or the two electrode plates 600 are installed in the mounting hole, the surface of the pole piece 500 and / or the two electrode plates 600 facing the device mounting cavity 113 abuts against the limiting protrusion.

[0086] With such a configuration, it is only necessary to extend the pole piece 500 and / or the two electrode plates 600 from the outside into the device mounting cavity 113 through the mounting hole. The limiting protrusion will limit the pole piece 500 and / or the two electrode plates 600, thereby preventing the pole piece 500 and / or the two electrode plates 600 from falling into the device mounting cavity 113 from the outside, thereby facilitating the installation of the pole piece 500 and / or the two electrode plates 600.

[0087] Furthermore, the cover plate is provided with a glue dispensing groove 143 concavely facing the box body, and the bottom of the box body is provided with a glue dispensing convex portion corresponding to the glue dispensing groove 143, and the glue dispensing convex portion is plugged and matched with the glue dispensing groove 143, and the glue dispensing protrusion 133 cooperates with the glue dispensing groove 143 to separate the lower cavity 120 into a wire passage 123 and a liquid outlet cavity 122. In this way, the glue dispensing groove 143 of the cover and the glue dispensing convex portion of the box body are sealed by glue dispensing, thereby improving the sealing of the wire passage 123, thereby preventing the wire 700 in the wire passage 123 from being affected by the liquid in the liquid outlet cavity 122.

[0088] Please also read Figures 1 to 4 In some embodiments of the present invention, the upper liquid storage chamber 112 is provided with a liquid inlet 112d on the wall away from the lower chamber 120, and the water tank assembly 1000 further includes a water tank cover 400, which is used to open or seal the liquid inlet 112d. With such a configuration, when liquid needs to be added to the upper liquid storage chamber 112, it is only necessary to open the water tank cover 400 and add liquid to the liquid inlet 112d. After adding, the water tank cover 400 is sealed and installed at the liquid inlet 112d.

[0089] There are many ways for the water tank cover 400 to seal the liquid inlet 112d. For example, a sealing portion protrudes from the surface of the water tank cover 400 facing the liquid inlet 112d. When the water tank cover 400 is installed on the liquid inlet 112d, the sealing portion extends into the liquid inlet 112d and abuts to seal the liquid inlet 112d. Another example is that an annular sealing groove is provided on the periphery of the liquid inlet 112d, and a sealing ring is arranged in the sealing groove. An annular protrusion protrudes from the surface of the water tank cover 400 facing the liquid inlet 112d. When the water tank cover 400 is installed on the liquid inlet 112d, the annular protrusion extends into the annular sealing groove, and the annular protrusion abuts against the sealing ring. These are not listed one by one here.

[0090] There are many ways for the water tank cover 400 to open or seal the liquid inlet 112d. The water tank cover 400 can be detachably installed on the housing 100, or the water tank cover 400 can be rotatably installed on the housing 100, or the water tank cover 400 can also be slidably installed on the housing 100. No specific limitation is made here. There are many ways for the water tank cover 400 to be detachably installed on the housing 100. For example, the water tank cover 400 is installed on the housing 100 by snap connection; another example is that the water tank cover 400 is installed on the housing 100 by screw connection; still another example is that the water tank cover 400 is installed on the housing 100 by plug-in cooperation. These are not listed one by one here.

[0091] A ventilation port is arranged near the liquid inlet 112d so that when the liquid inlet 112d is completely sealed by a pipeline, the air pressure difference in the upper liquid storage cavity 112 can be balanced through the ventilation port, thereby ensuring that the liquid can normally enter the upper liquid storage cavity 112 and can fill the upper liquid storage cavity 112. The water tank cover 400 can also be used to open or seal the ventilation port.

[0092] The present invention also provides a cleaning robot, which includes a machine body, a walking module, a cleaning module, and a water tank assembly 1000. The specific structure of the water tank assembly 1000 refers to the above-mentioned embodiments. Since this cleaning robot adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one. Among them, the walking module and the cleaning module are arranged at the bottom of the machine body, and the water tank assembly 1000 is arranged inside the machine body.

[0093] The walking module is used to drive the cleaning robot to move on the working surface, and the cleaning module is used to clean the garbage on the walking path of the cleaning robot. Among them, the cleaning robot may further include a control system, and the control system includes a radar and a controller. The radar and the walking module are both electrically connected to the controller. The radar is used to detect obstacles in the traveling direction of the cleaning robot, and the controller issues an instruction on the traveling direction to the walking module according to the electrical signal transmitted back by the radar.

[0094] The present invention also provides a cleaning system, which includes a cleaning robot and a base station. The specific structure of the cleaning robot refers to the above embodiments. Since the cleaning robot adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the base station is provided with a docking station for the cleaning robot to dock.

[0095] There are various types of the docking stations. The docking station can be an open docking station, or a semi-closed docking station, or a fully-closed docking station.

[0096] The open docking station is in a completely open state and only provides a supporting function for the cleaning robot without imposing constraints in other directions of the cleaning robot. Specifically, the open docking station can be formed by a plane extending horizontally along the base station body, or can be formed by a plane inclined in the up-down direction along the base station body, and no specific limitation is made here.

[0097] The semi-closed docking station is partially open. The semi-closed docking station not only provides a supporting function for the cleaning robot, but also can impose constraints in other directions of the cleaning robot. For example, a side surface of the base station body is partially recessed to form a cleaning bin with an open side end, and the space in the cleaning bin forms a semi-closed docking station; another example is that the upper surface of the base station body can also be partially recessed downward to form a cleaning bin with an open upper end to form the semi-closed docking station.

[0098] The fully-closed docking station is completely closed. After the cleaning robot is parked, the fully-closed docking station is completely closed so that the cleaning robot is in a completely enclosed environment. Compared with the semi-closed docking station, the fully-closed docking station is provided with a door on the basis of the semi-closed docking station. The number of the doors can be one or more, and the door can open or close the space where the docking station is located.

[0099] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A water tank assembly is applied to a cleaning robot. It is characterized in that the water tank assembly includes a housing having an upper cavity and a lower cavity and an air pump; wherein, the upper cavity is at least partitioned into an installation cavity and an upper liquid storage cavity. An installation hole is provided at the bottom of the installation cavity, and a first connection hole and a second connection hole are provided at the bottom of the upper liquid storage cavity; the lower cavity is partitioned into a lower liquid storage cavity and a liquid outlet cavity. The installation cavity is communicated with the lower liquid storage cavity through the installation hole, and the upper liquid storage cavity is communicated with the lower liquid storage cavity through the first connection hole; the upper liquid storage cavity is further communicated with the liquid outlet cavity through the second connection hole, and a liquid outlet is provided at the bottom of the liquid outlet cavity; the air pump is installed in the installation cavity, and the air outlet end of the air pump is hermetically connected to the installation hole.

2. The water tank assembly according to claim 1, It is characterized in that the housing includes an upper shell and a lower shell. A first accommodation groove and a second accommodation groove are provided on the surface of the upper shell facing the lower shell. A third accommodation groove and a fourth accommodation groove are provided on the surface of the lower shell facing the upper shell. The lower cavity is provided below the third accommodation groove and the fourth accommodation groove. The installation hole is further provided at the bottom of the third accommodation groove, and the first connection hole and the second connection hole are provided at the bottom of the fourth accommodation groove; the upper shell is installed on the lower shell, and the installation cavity is formed by enclosing the first accommodation groove and the third accommodation groove, and the upper liquid storage cavity is formed by enclosing the second accommodation groove and the fourth accommodation groove.

3. The water tank assembly according to claim 2, It is characterized in that a glue dispensing protrusion is convexly provided on the surface of the upper shell facing the lower shell, and the glue dispensing protrusion is wound around the openings of the first accommodation groove and the second accommodation groove; a glue dispensing groove is concavely provided on the surface of the lower shell facing the upper shell, and the glue dispensing groove is wound around the openings of the third accommodation groove and the fourth accommodation groove. The glue dispensing protrusion is inserted and matched with the glue dispensing groove to hermetically separate the installation cavity and the upper liquid storage cavity.

4. The water tank assembly according to claim 1, It is characterized in that an installation groove is provided on the cavity wall of the installation cavity away from the lower cavity, and the air pump is installed in the installation groove; a limiting convex portion is convexly provided on the bottom of the installation cavity, and the surface of the limiting convex portion away from the lower cavity abuts against the air pump.

5. The water tank assembly according to claim 4, It is characterized in that a connecting protrusion is convexly provided on the bottom of the installation cavity, and the connecting protrusion penetrates along the direction away from the lower cavity to form the installation hole.

6. The water tank assembly according to any one of claims 1 to 5, It is characterized in that a convex platform is convexly provided on the bottom of the upper liquid storage cavity, and the convex platform partially penetrates to form the second connection hole, so that one end of the second connection hole away from the lower cavity is spaced from one end of the first connection hole away from the lower cavity.

7. The water tank assembly according to any one of claims 1 to 5, It is characterized in that the lower liquid storage cavity surrounds the liquid outlet cavity on all sides.

8. The water tank assembly according to any one of claims 1 to 5, It is characterized in that The water tank assembly further includes a one-way valve, and the one-way valve is sealingly installed at one end of the mounting hole close to the lower cavity.

9. The water tank assembly according to any one of claims 1 to 5, wherein, at least one device mounting cavity is further partitioned in the upper cavity, and wire passing holes are provided at the bottoms of the at least one device mounting cavity; a wire passing channel is further partitioned in the lower cavity, and the at least one device mounting cavity and the mounting cavity are both communicated with the wire passing channel through the corresponding wire passing holes.

10. A cleaning robot, wherein, the cleaning robot includes a machine body, a traveling module, a cleaning module, and the water tank assembly according to any one of claims 1 to 9, the traveling module and the cleaning module are arranged at the bottom of the machine body, and the water tank assembly is arranged inside the machine body.

11. A cleaning system, wherein, the cleaning system includes the above-mentioned base station and the cleaning robot according to claim 10, and the base station includes a platform for the cleaning robot to dock.

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