Water tank and a robot vacuum

Abstract

The application discloses a water tank and a sweeping robot, wherein the water tank comprises a tank body and a filter assembly; the tank body is formed with an accommodating cavity; the tank body is also provided with a water outlet communicating with the accommodating cavity; and the filter assembly is arranged on the bottom wall of the accommodating cavity and communicates with the water outlet through a pipeline. The water tank has simple structure and good filtering effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliance dust removal, in particular to a water tank and a sweeping robot. BACKGROUND

[0002] The sweeping robot is an intelligent household appliance capable of automatically cleaning the ground. With the improvement of living standards, the intelligent household appliance gradually enters the general family life. At present, the sweeping robot is equipped with a water tank and other structures for mopping operation in addition to the automatic dust removal function. Specifically, the water in the water tank is pumped out to wet the cloth to achieve mopping. However, the water added in the water tank for mopping generally is not tap water and contains certain impurities and dirt. The existing water filtering system structure is relatively complicated and has poor filtering effect. SUMMARY

[0003] The main purpose of the present application is to provide a water tank, which has a simple structure and good filtering effect.

[0004] To achieve the above purpose, the water tank provided by the present application comprises:

[0005] a tank body, the tank body is formed with a containing cavity, and the tank body is also provided with a water outlet communicating with the containing cavity; and

[0006] a filtering assembly, the filtering assembly is arranged on the bottom wall of the containing cavity and communicates with the water outlet through a pipeline.

[0007] In an optional embodiment, the filtering assembly comprises a joint piece and a filtering piece, the filtering piece is arranged on the bottom wall of the containing cavity, the joint piece is provided with a water pumping hole, the filtering piece communicates with the water pumping hole, and the water pumping hole communicates with the water outlet through the pipeline.

[0008] In an optional embodiment, the bottom wall of the containing cavity is provided with a containing groove, the filtering piece is arranged in the containing groove, and the liquid in the containing cavity flows out from the water pumping hole after sequentially passing through the filtering piece and the containing groove.

[0009] In an optional embodiment, the water tank further comprises a mounting seat, the bottom wall of the containing cavity is provided with a mounting hole, and the part of the mounting seat embedded in the mounting hole forms the containing groove.

[0010] In an optional embodiment, the mounting seat comprises a mounting cylinder and a mounting plate, the mounting cylinder is vertically arranged on one surface of the mounting plate, the mounting cylinder forms the containing groove, the mounting cylinder is partially embedded in the mounting hole, and the mounting plate is attached to the outer surface of the tank body.

[0011] Optionally, the bottom wall of the accommodating cavity is provided with a supporting seat, the supporting seat is formed with a buckling groove covering the mounting cylinder, the joint member is arranged on the outer wall surface of the buckling groove, the water outlet hole is communicated with the buckling groove, and the circumferential wall of the buckling groove is provided with a water seepage hole communicated with the accommodating groove.

[0012] Optionally, the mounting cylinder is abutted against the bottom wall of the buckling groove at the end away from the mounting plate, and the circumferential wall of the mounting cylinder is provided with a water passing hole communicated with the water seepage hole and the accommodating groove.

[0013] Optionally, the filter member is abutted against the mounting plate at one end, and the filter member completely covers the water passing hole in the axial direction of the mounting hole.

[0014] Optionally, the water tank further comprises a sealing member, the sealing member is annularly arranged around the mounting cylinder, and is clamped between the mounting plate and the tank body.

[0015] Optionally, the water tank further comprises a cover plate and an air pressure adjusting member, the tank body is further provided with a water inlet communicated with the accommodating cavity, the cover plate covers the water inlet, the cover plate is provided with an air inlet communicated with the accommodating cavity, the air pressure adjusting member seals the air inlet, and the air pressure adjusting member has a closed state and a breathable state when there is a pressure difference between the inside and outside of the accommodating cavity.

[0016] Optionally, the air pressure adjusting member is arranged on the surface of the cover plate facing the accommodating cavity, the air pressure adjusting member is formed with a slit, and the two side walls of the slit have an away state and an abutting state, so that the air pressure adjusting member has a closed state and a breathable state.

[0017] Optionally, the air pressure adjusting member and the cover plate are formed in one piece; and / or,

[0018] The air pressure adjusting member is formed with an air inlet groove communicated with the air inlet, and the groove wall of the air inlet groove is formed with the slit.

[0019] Optionally, when the air pressure adjusting member is formed with an air inlet groove communicated with the air inlet, in the air inlet direction of the air inlet, the cross-sectional area of the air inlet groove has a decreasing trend, and the slit is arranged at the groove bottom of the air inlet groove away from the air inlet.

[0020] Optionally, the surface of the cover plate facing the accommodating cavity is provided with a protruding ring, the protruding ring is arranged around the air pressure adjusting member, and the protruding ring is matched and inserted with the water inlet; and / or,

[0021] The housing has through holes spaced apart from the water inlet. The surface of the cover plate facing the receiving cavity is provided with a fixing post. When the cover plate is closed on the water inlet, the fixing post is inserted into the through hole.

[0022] The present invention also proposes a sweeping robot, including the water tank as described above.

[0023] The water tank of this invention includes a tank body and a filter assembly. The tank body forms a receiving cavity and has an outlet communicating with the receiving cavity. The filter assembly is located on the bottom wall of the receiving cavity, allowing the water in the receiving cavity to pass through the filter assembly by its own weight, effectively removing impurities and dirt from the water. The filter assembly is connected to the outlet via a pipe, allowing the filtered water to be drawn out through the outlet. The filtered water is less likely to clog the pipe body and outlet, improving the performance of the water tank. Simultaneously, the water in the receiving cavity is filtered by its own weight, resulting in a slower flow rate and more thorough filtration. The filtration is effective and requires no driving force, has a simple structure, and does not require coordination with other components, effectively reducing space occupation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the sweeping robot of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of one embodiment of the water tank in the robotic vacuum cleaner shown;

[0027] Figure 3 for Figure 2 A structural schematic diagram of the water tank from another perspective;

[0028] Figure 4 for Figure 3 A cross-sectional view of the water tank shown.

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 for Figure 3 A partially exploded view of the water tank shown.

[0031] Figure 7 for Figure 2A schematic diagram of the mounting base, filter components, and sealing ring in the water tank shown;

[0032] Figure 8 for Figure 7 Exploded view;

[0033] Figure 9 for Figure 2 The diagram shows the structure of the lower tank cover and filter assembly in the water tank.

[0034] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0035] Figure 11 for Figure 9 The diagram shows a partial structural schematic of the lower casing cover and filter assembly.

[0036] Figure 12 for Figure 2 A partial sectional view of the water tank shown.

[0037] Figure 13 for Figure 2 The diagram shows the structure of the water tank without the cover plate.

[0038] Figure 14 for Figure 2 The diagram shows the structure of the cover plate and gas regulating component in the water tank.

[0039] Figure 15 for Figure 1 The diagram shows the flow path from the water tank to the nozzle assembly in the robotic vacuum cleaner.

[0040] Explanation of icon numbers:

[0041] Reference Name Reference Name 100 Sweeping robot 133 Filter 10 Water tank 135 Support seat 11 Box 1351 Fastening groove 11a Accommodating cavity 1353 Water seepage hole 111 Water outlet 15 Mounting seat 113 Mounting hole 151 Mounting plate 114 Sinking groove 1511 Connecting hole 115 Water inlet 153 Mounting cylinder 116 Through hole 1531 Accommodating groove 117 Upper box cover 1533 Water passage 119 Lower box cover 17 Sealing element 1191 Sealing groove 18 Air pressure adjusting element 1193 Groove 181 Slit 12 Cover plate 183 Air inlet groove 121 Air inlet 19 Valve body 123 Convex ring 191 Water suction nozzle 125 Fixing column 30 Shell 13 Filter assembly 50 Pump body 131 Joint element 70 Spray head assembly 1311 Water suction hole

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In addition, the description such as "first", "second" in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0047] The present application provides a water tank 10 for a robot 100.

[0048] Please refer to Figures 1 to 4 In the embodiments of the present application, the water tank 10 provided by the present application comprises:

[0049] a tank body 11, the tank body 11 is formed with an accommodating cavity 11a, and the tank body 11 is also provided with a water outlet 111 communicating with the accommodating cavity 11a; and

[0050] a filter assembly 13, the filter assembly 13 is arranged on the bottom wall of the accommodating cavity 11a and communicates with the water outlet 111 through a pipeline.

[0051] In the embodiment, the water tank 10 is applied to the sweeping robot 100, and the water tank 10 includes a tank body 11 which is formed with an accommodation cavity 11a for storing water to provide a water source for a ground wiping cloth of the sweeping robot 100, and the water in the water tank 10 is pumped out by the pump body 50 and sprayed to the ground wiping cloth to realize the mopping function. Specifically, the tank body 11 is made of plastic, which is convenient for processing and forming, and has good structural stability, and can also be convenient for cleaning. Here, the tank body 11 is a split structure including an upper tank cover 117 and a lower tank cover 119, and the two are buckled to form the accommodation cavity 11a. The split structure can facilitate demolding during processing, improve processing efficiency, and also facilitate cleaning of the inner wall of the accommodation cavity 11a and disassembly of the components to ensure the service life of the tank body 11. The upper tank cover 117 and the lower tank cover 119 are connected by insertion, that is, the surface of the upper tank cover 117 facing the lower tank cover 119 is provided with a protruding ring, and the surface of the lower tank cover 119 facing the upper tank cover 117 is provided with a slot, and the protruding ring is inserted into the slot to complete the connection. Of course, the two can also be connected by other connection methods, such as buckle connection or threaded connection. Of course, in other embodiments, the tank body 11 can be an integral structure.

[0052] It can be understood that the tank body 11 is provided with a water inlet 115 which is in communication with the accommodation cavity 11a. When the tank body 11 is in an initial use state or the water level in the accommodation cavity 11a is low, water is added to the accommodation cavity 11a through the water inlet 115 to meet the water requirement of the sweeping robot 100 in one cleaning and mopping process. Here, the water inlet 115 of the tank body 11 is arranged at the top of the accommodation cavity 11a, that is, on the upper surface of the upper tank cover 117. Compared with the bottom or the side, on the one hand, it is convenient for water injection, and on the other hand, it can improve the space utilization of the tank body 11 and ensure a large amount of water to be added at one time. Of course, the tank body 11 is also provided with a water outlet 111 which can be arranged on the side wall of the accommodation cavity 11a, that is, the side surface of the upper tank cover 117 is provided with the water outlet 111, which is convenient for the pump body 50 to pump water. In order to avoid water flowing out of the accommodation cavity 11a when water is not pumped, a valve body 19 is arranged at the water outlet 111. The valve body 19 is connected to the tank body 11 by screwing. The valve body 19 has a water pumping nozzle 191 and a water outlet channel which is in communication or blocked with the water outlet 111, so as to effectively control the water outlet and closure of the water outlet 111.

[0053] At the same time, in order to filter the water in the accommodating cavity 11a, the water tank 10 further comprises a filter assembly 13 arranged at the bottom wall of the accommodating cavity 11a, which can be understood as having the functions of filtering water and storing filtered water, and the filter assembly 13 is communicated with the water outlet 111 through a water pipe, that is, the space for storing filtered water of the filter assembly 13 is communicated with the water suction nozzle 191 of the valve body 19 through the water pipe, so that the filtered water is transmitted to the valve body 19 and then output through the water outlet 111.

[0054] The water tank 10 of the technical scheme of the present application comprises a tank body 11 and a filter assembly 13, the tank body 11 is formed with an accommodating cavity 11a and is provided with a water outlet 111 communicating with the accommodating cavity 11a, and the filter assembly 13 is arranged at the bottom wall of the accommodating cavity 11a, so that the water in the accommodating cavity 11a can be filtered by the filter assembly 13 through its own gravity, effectively removing impurities and dirt in the water, and the filter assembly 13 is communicated with the water outlet 111 through a pipeline, so that the water filtered by the filter assembly 133 is extracted through the water outlet 111, and the filtered water will not block the pipe body and the water outlet 111, improving the use performance of the water tank 10. At the same time, the water in the accommodating cavity 11a is filtered by gravity, the flow rate of the water is slow, the filtration is more sufficient, the filtration effect is good, and the filtration can be performed without any driving force, the structure is simple, and no cooperation with other components is required, effectively reducing the occupied space.

[0055] Please combine Figure 4 and Figure 5 In an optional embodiment, the filter assembly 13 comprises a joint piece 131 and a filter piece 133, the filter piece 133 is arranged at the bottom wall of the accommodating cavity 11a, the joint piece 131 is provided with a water suction hole 1311, the filter piece 133 communicates with the water suction hole 1311, and the water suction hole 1311 is communicated with the water outlet 111 through the pipeline.

[0056] In this embodiment, the filter piece 133 mainly plays a filtering role, and is arranged at the bottom wall of the accommodating cavity 11a. The filter piece 133 is a filter screen, which can be made of metal, such as stainless steel, and has good structural stability and small opening size, thereby improving the filtering effect. Of course, the filter piece 133 can also be made of other materials, such as porous ceramic or fiber fabric, which are not limited herein. The filtering capacity of the filter piece 133 can be selected according to the actual water quality, and the filter piece 133 can be arranged in a multi-layer stacked structure, with a coarse filter screen on the outside and a fine filter screen on the inside, so as to form a better filtering effect and ensure the use performance of the valve body 19.

[0057] Specifically, in order to realize that the filter 133 divides the water in the containing cavity 11a into pre-filtered water and post-filtered water, the filter 133 can be in a cylindrical shape, the opening size and shape of the cylindrical filter 133 can be set according to actual conditions, the water in the cylinder is the post-filtered water filtered by the filter 133, the joint piece 131 is communicated with the filter 133, that is, the joint piece 131 is communicated with the inside of the cylindrical filter 133, the structure is further simple, and it can be ensured that the water in the containing cavity 11a is all filtered by the filter 133 and then transmitted to the joint piece 131. Of course, in other embodiments, the filter 133 can also be in a planar shape, and a water storage space is fixed by other components.

[0058] In order to fix the end of the water pipe communicated with the water outlet nozzle 191, the filter assembly 13 further includes a joint piece 131, an internal through water outlet hole 1311 is formed in the joint piece 131, one end of the joint piece 131 is communicated with the filter 133, and the other end is communicated with the water pipe after being sleeved or inserted. Generally, in order to realize stable connection, the inner diameter of the water pipe is generally smaller than the outer diameter of the joint piece 131, so as to facilitate the connection of the water pipe, the end of the joint piece 131 away from the filter 133 is chamfered, that is, the end is in a pointed shape, and the end size is small to facilitate the sleeving of the water pipe. At the same time, in order to prevent the water pipe from falling off, a stepped surface facing the filter 133 is arranged at the end of the joint piece 131, when the water pipe is sleeved to the stepped surface, it can be clamped into the stepped surface, thereby realizing effective and stable fixed connection.

[0059] Please combine Figure 5 and Figure 6 In an optional embodiment, the bottom wall of the containing cavity 11a is provided with a containing groove 1531, the filter 133 is annularly arranged in the containing groove 1531, and the liquid in the containing cavity 11a flows out from the water outlet hole 1311 after sequentially passing through the filter 133 and the containing groove 1531.

[0060] In this embodiment, in order to facilitate the installation of the filter 133, a receiving groove 1531 is formed in the bottom wall of the receiving cavity 11a, and the filter 133 is arranged in the receiving groove 1531, that is, the filter 133 is matched with the groove wall of the receiving groove 1531. When the opening of the receiving groove 1531 is circular, the filter 133 is cylindrical, and the filter 133 is matched with the receiving groove 1531 in a filtering manner, so as to realize stable installation of the filter 133 and prevent the filter 133 from shaking or toppling due to water impact. Since the receiving groove 1531 is located on the bottom wall, which is the lowest position, the water in the receiving cavity 11a will automatically flow into the receiving groove 1531. Here, the filter 133 needs to be partially exposed to the groove wall of the receiving groove 1531, so that when the water flows into the receiving groove 1531, it can be filtered by the filter 133 and then transmitted to the water outlet 111 through the water suction hole 1311. In addition, the receiving groove 1531 also becomes a space for storing filtered water, which has a simple structure but can achieve high stability and filtering effect.

[0061] Please refer to Figure 6 In an optional embodiment, the water tank 10 further comprises a mounting seat 15, and the bottom wall of the receiving cavity 11a is provided with a mounting hole 113. The part of the mounting seat 15 embedded in the mounting hole 113 forms the receiving groove 1531.

[0062] In this embodiment, the water tank 10 further comprises a mounting seat 15, which is detachably connected with the water tank 10, specifically, the lower tank cover 119. For example, the bottom wall of the receiving cavity 11a is provided with a mounting hole 113, and the mounting seat 15 is partially embedded in the mounting hole 113 from the outer surface of the water tank 10 to the receiving cavity 11a, and protrudes from the mounting hole 113 towards the inner wall surface of the receiving cavity 11a. The part of the mounting seat 15 embedded in the mounting hole 113 forms the receiving groove 1531, and the filter 133 is installed in the receiving groove 1531. The split structure can facilitate the installation of the filter 133 in the receiving groove 1531. When the filter 133 needs to be replaced after a period of use, the mounting seat 15 can be detached without the need to open the entire tank 11, which is convenient and efficient, and effectively improves the disassembly and assembly efficiency and the replacement efficiency.

[0063] Please refer to Figures 6 to 8 In an optional embodiment, the mounting seat 15 comprises a mounting cylinder 153 and a mounting plate 151. The mounting cylinder 153 is vertically arranged on one surface of the mounting plate 151, and the mounting cylinder 153 forms the receiving groove 1531. The mounting cylinder 153 is partially embedded in the mounting hole 113, and the mounting plate 151 is attached to the outer surface of the tank 11.

[0064] In the embodiment, in order to conveniently fix the mounting seat 15, the mounting seat 15 is provided with a mounting plate 151 for fixation and a mounting cylinder 153 forming a containing groove 1531, the mounting cylinder 153 is vertically arranged on a surface of the mounting plate 151, that is, the mounting cylinder 153 and the mounting plate 151 jointly enclose the containing groove 1531, when part of the mounting cylinder 153 is embedded in the mounting hole 113, the mounting plate 151 can be attached to the outer surface of the box body 11, thereby improving the stability of the mounting seat 15.

[0065] Here, the surface area of the mounting plate 151 is greater than the cross-sectional area of the mounting cylinder 153, the area connected with the box body 11 is increased, the mounting plate 151 is connected with the box body 11 in a threaded connection mode, a connecting hole 1511 is formed on the mounting plate 151, a threaded hole is formed on the box body 11, and the mounting plate 151 is fixedly connected with the box body 11 by a screw passing through the connecting hole 1511 and the threaded hole. Specifically, the mounting plate 151 is in an elliptical plate shape, two connecting holes 1511 are formed on the mounting plate 151, the mounting cylinder 153 is located at the middle of the mounting plate 151, and the two connecting holes 1511 are located at the center positions of the mounting plate 151 in the direction of the major axis, two threaded holes corresponding to the two connecting holes 1511 are also provided, and the stability of the threaded connection is improved. In addition, in order to further improve the stability of the connection, a connecting groove is recessed on the outer surface of the box body 11 in the direction of the containing cavity 11a, an internal thread is formed on the inner wall of the connecting groove, thereby forming a threaded hole with a large depth, further improving the strength of the threaded connection, and at the same time, the connecting groove is not communicated with the containing cavity 11a, which can effectively prevent water from leaking out of the connecting position, thereby improving the sealing performance of the box body 11. Of course, in other embodiments, the connection mode between the mounting seat 15 and the box body 11 can be a buckle connection mode or a plug-in connection mode.

[0066] In order to improve the sealing performance of the water tank 10, the water tank 10 further comprises a sealing member 17, the sealing member 17 is annularly arranged around the circumference of the mounting cylinder 153 and clamped between the mounting plate 151 and the box body 11.

[0067] In the embodiment, in order to prevent water from leaking from the connecting position between the mounting seat 15 and the box body 11, a sealing member 17 is arranged at the position, the sealing member 17 can be a sealing ring made of rubber or fiber cotton, and is annularly arranged around the circumference of the mounting cylinder 153 and clamped between the mounting plate 151 and the box body 11. At the same time, in order to fix the sealing member 17, a sealing groove 1191 is formed on the outer surface of the box body 11, the mounting hole 113 is arranged on the groove bottom of the sealing groove 1191, the sealing member 17 is arranged in the sealing groove 1191, and the mounting plate 151 abuts against the sealing member 17 during the threaded connection, thereby further improving the sealing performance of the box body 11 and effectively reducing unnecessary water leakage.

[0068] In addition, in an optional embodiment, the outer surface of the box body 11 is provided with a groove 1193, the bottom wall of the groove 1193 is provided with a sealing groove 1191, and the mounting plate 151 is mounted in the groove 1193, and the surface of the mounting plate 151 away from the containing cavity 11a is flush with the outer surface of the box body 11, so that the outside of the water tank 10 is smooth and not easy to interfere with other components.

[0069] Please refer to Figure 5 , Figures 9 to 11 When the mounting seat 15 and the filter 133 are detachably connected, in order to facilitate the fixation of the joint piece 131, in an optional embodiment, the bottom wall of the containing cavity 11a is provided with a support seat 135, the support seat 135 is formed with a buckling groove 1351 covering the mounting cylinder 153, the joint piece 131 is arranged on the outer wall surface of the buckling groove 1351, the water suction hole 1311 communicates with the buckling groove 1351, and the circumferential wall of the buckling groove 1351 is provided with a water seepage hole 1353 communicating with the containing groove 1531.

[0070] In this embodiment, the support seat 135 is directly formed by the bottom wall of the containing cavity 11a extending towards the top wall and has the buckling groove 1351 covering the mounting cylinder 153, the opening edge of the buckling groove 1351 is arranged around the circumference of the mounting hole 113, the joint piece 131 is arranged on the surface of the support seat 135 away from the mounting hole 113, and the water suction hole 1311 penetrates through the support seat 135 to communicate with the buckling groove 1351, so as to ensure that the water suction hole 1311 communicates with the containing groove 1531 of the mounting cylinder 153 and realizes water suction. In this structure, the support seat 135 and the box body 11 are integrally formed, have high structural strength, and do not have a connection gap for water leakage, further improving the sealing performance of the box body 11. At the same time, the joint piece 131 and the support seat 135 are integrally formed, which can effectively improve the structural strength and stability of the joint piece 131 and ensure the stability of water suction.

[0071] Of course, in order to realize that the water in the containing cavity 11a enters the containing groove 1531 for filtration, the water seepage hole 1353 is arranged around the buckling groove 1351, so that the water flows into the containing groove 1531 through the water seepage hole 1353 and the filter 133, and the filtered water in the containing groove 1531 can be transported to the water suction nozzle 191 through the water suction hole 1311. Here, the filter 133 and the mounting cylinder 153 need to cooperate to completely cover the water seepage hole 1353, so that the water in the containing cavity 11a passing through the water seepage hole 1353 is filtered by the filter 133 before flowing into the containing groove 1531. For example, the filter 133 is annularly arranged in the containing groove 1531 and protrudes from the opening of the containing groove 1531, and the water seepage hole 1353 is arranged opposite to the position where the filter 133 protrudes from the opening of the containing groove 1531.

[0072] In an optional embodiment, the mounting cylinder 153 abuts against the bottom wall of the buckling groove 1351 at the end away from the mounting plate 151, and the peripheral wall of the mounting cylinder 153 is provided with a water passing hole 1533 communicating with the water permeating hole 1353 and the accommodating groove 1531.

[0073] In this embodiment, in order to protect the filter 133, the height of the mounting cylinder 153 in the axial direction of the mounting hole 113 is set to be greater than the height of the filter 133, so as to effectively avoid damaging the filter 133 by pressure during disassembly and assembly. The free end of the mounting cylinder 153 abuts against the bottom wall of the buckling groove 1351, so as to play a certain positioning function in the vertical direction when assembling the mounting seat 15, facilitating disassembly and assembly. Therefore, at this time, in order to expose the filter 133, the water passing hole 1533 communicating with the water permeating hole 1353 and the accommodating groove 1531 is formed in the peripheral wall of the mounting cylinder 153, so that the water in the accommodating cavity 11a passes through the water permeating hole 1353 and the water passing hole 1533 and then passes through the filter 133 for filtration.

[0074] It can be understood that the number of water permeating holes 1353 can be designed according to the pumping rate requirement, so as to increase the amount of water entering the accommodating groove 1531 after filtration. In this embodiment, the water permeating hole 1353 is provided with two, and the two water permeating holes 1353 are uniformly distributed on the peripheral side of the joint piece 131. Correspondingly, the water passing hole 1533 is also provided with two, so as to increase the water inflow and also ensure the stability of the support seat 135.

[0075] In an optional embodiment, the filter 133 abuts against the mounting plate 151, and the filter 133 completely covers the water passing hole 1533 in the axial direction of the mounting hole 113.

[0076] In this embodiment, the one end of the filter 133 abuts against the mounting plate 151, so as to facilitate determination of the installation position of the filter 133, thereby realizing stable installation of the filter 133. In order to further ensure that all the water passing through the water passing hole 1533 can be filtered, the filter 133 needs to completely cover the water passing hole 1533, further improving the filtering effect and effectively preventing partial impurities from blocking the valve body 19, thereby improving the filtering effect of the water tank 10. At this time, the water passing hole 1533 can extend from the bottom to the top of the mounting cylinder 153, and the extension length is less than the height of the filter screen, but needs to communicate with the water permeating hole 1353.

[0077] Please refer to Figures 12 to 14In addition, in order to prevent water from flowing out at the water inlet 115, a cover plate 12 is arranged at the water inlet 115, which covers the water inlet 115 to achieve the sealing of the tank 11. The cover plate 12 can be made of plastic or rubber, which is convenient to process, stable in performance, and good in sealing. The connection between the cover plate 12 and the water inlet 115 can be plug-in connection, buckle connection, or sliding connection, which is not limited here. The cover plate 12 is provided with an air inlet 121, and an air pressure adjusting piece 18 is arranged at the air inlet 121. The air pressure adjusting piece 18 is in a closed state under normal circumstances, that is, it does not allow water in the containing cavity 11a to flow out, and only when the pressure difference between the inside and outside of the containing cavity 11a reaches a certain degree during the water pumping process, the atmospheric pressure can pass through to balance the air pressure in the containing cavity 11a. The air pressure adjusting piece 18 can be a film shape, which can allow gas to pass through but not allow water in the containing cavity 11a to flow out, for example, a dialysis membrane. Of course, the air pressure adjusting piece 18 can also be a valve body, which cannot be passed through by the water in the containing cavity 11a, but can be pressed open by the external atmospheric pressure to form a breathable state, such as a duckbill valve. The connection between the air pressure adjusting piece 18 and the cover plate 12 can be adhesive or threaded connection, or an integral structure.

[0078] In this embodiment, the cover plate 12 is arranged at the water inlet 115 to prevent water in the water tank 10 from flowing out, and the cover plate 12 is provided with an air inlet 121 communicating with the containing cavity 11a, and an air pressure adjusting piece 18 is arranged at the air inlet 121. The air pressure adjusting piece 18 has a closed state to block the air inlet 121, thereby improving the sealing of the containing cavity 11a and ensuring that water does not flow out of the water inlet 115. The air pressure adjusting piece 18 also has a breathable state when there is a pressure difference between the inside and outside of the containing cavity 11a, that is, the external atmospheric pressure can enter the containing cavity 11a through the air inlet 121 and the air pressure adjusting piece 18 to effectively balance the pressure difference between the inside and outside of the containing cavity 11a, thereby improving the water pumping rate at the water outlet 111 and ensuring the use performance of the water tank 10.

[0079] On the basis of the above embodiment, the air pressure adjusting piece 18 and the cover plate 12 are an integral structure. Here, the air pressure adjusting piece 18 and the cover plate 12 are an integral structure, which on the one hand facilitates processing by one-time molding by a mold, effectively saving time and cost, and on the other hand simplifies the processing procedure of the product, without the need for assembly, further improving the production efficiency of the water tank 10.

[0080] Please continue to refer to Figure 12 and Figure 13 In an optional embodiment, the air pressure adjusting piece 18 is arranged on the surface of the cover plate 12 facing the containing cavity 11a, and the air pressure adjusting piece 18 is formed with a slit 181, and the two side walls of the slit 181 have a far-away state and an abutting state, so that the air pressure adjusting piece 18 has a closed state and a breathable state.

[0081] In the embodiment, the air pressure adjusting member 18 is a valve body arranged on the surface of the cover plate 12 facing the accommodating cavity 11a and blocking the water inlet 115. The air pressure adjusting member 18 is further formed with a slit 181, the side walls of which are in abutting state under normal condition, i.e. the air pressure adjusting member 18 is in closed state, and the two side walls of the slit 181 are in away state under stress condition, i.e. the air pressure adjusting member 18 is in air permeable state. The air pressure adjusting member 18 of the embodiment has low requirement on material, which can be ordinary plastic or rubber, etc., effectively saving cost; and the air pressure adjusting member 18 can be automatically in air permeable state under atmospheric pressure, without the need of driving structure for driving, which is simple in structure and further reduces cost.

[0082] To further improve the waterproofness of the air pressure adjusting member 18, in an optional embodiment, the air pressure adjusting member 18 is formed with an air inlet groove 183 in communication with the air inlet 121, and the groove wall of the air inlet groove 183 is formed with the slit 181.

[0083] In the embodiment, the air pressure adjusting member 18 is formed with the air inlet groove 183 in communication with the air inlet 121, which can expand the surface area, and the slit 181 is formed on the groove wall of the air inlet groove 183, so as to reduce the pressure of water impact, avoid the water in the accommodating cavity 11a from opening the slit 181 during shaking and causing water leakage, and effectively improve the sealing effect of the air pressure adjusting member 18. Meanwhile, the air inlet groove 183 is in communication with the air inlet 121, so that the atmospheric pressure can enter the air inlet groove 183 through the air inlet 121 for filling, and automatically open the slit 181 for balancing the air pressure when reaching a certain amount, without affecting the air pressure balancing effect of the air pressure adjusting member 18.

[0084] In an optional embodiment, in the air inlet direction of the air inlet 121, the cross-sectional area of the air inlet groove 183 has a decreasing trend, and the slit 181 is arranged at the groove bottom of the air inlet groove 183 away from the air inlet 121.

[0085] In the embodiment, the air pressure adjusting member 18 is provided as a duckbill valve, the air inlet groove 183 formed by the duckbill valve has a certain depth in the air inlet direction, and the cross-sectional area of the air inlet groove 183 has a decreasing trend in the air inlet direction of the air inlet port 121, the slit 181 is arranged at the groove bottom of the air inlet groove 183 away from the air inlet port 121, the end of the air pressure adjusting member 18 close to the air inlet port 121 is in a cylindrical shape, and the end of the air pressure adjusting member 18 away from the air inlet port 121 is the two side walls forming the slit 181, the two side walls gradually approach the center of the air inlet groove 183 in the air inlet direction, so that the end of the air pressure adjusting member 18 away from the air inlet port 121 is in a flat pointed shape, which facilitates the increase of the pressure at the pointed end position after the atmospheric pressure enters the air inlet groove 183, so as to facilitate the opening of the slit 181 and improve the air pressure balancing efficiency. The water in the accommodating cavity 11a can easily impact the two side walls forming the slit 181, so that the abutment of the two side walls of the slit 181 is more rigorous, effectively improving the waterproof performance.

[0086] At the same time, the projection of the slit 181 on the cover plate 12 is located in the projection range of the air inlet port 121 on the cover plate 12, so that the external atmosphere can be directly blown to the slit 181 along a straight line through the air inlet port 121, thereby reducing the loss of wind, ensuring the impact force of the slit 181, and further improving the air pressure adjusting efficiency.

[0087] Please refer to Figure 12 and Figure 14 In order to facilitate the connection of the cover plate 12, in an embodiment, the surface of the cover plate 12 facing the accommodating cavity 11a is provided with a protruding ring 123, the protruding ring 123 is arranged around the air pressure adjusting member 18, and the protruding ring 123 is inserted into the water inlet port 115 in a matched manner.

[0088] In the embodiment, the protruding ring 123 and the cover plate 12 are in an integral molding structure, thereby increasing the structural strength and stability of the cover plate 12 and the protruding ring 123, and the integral molding can be achieved through a mold, thereby facilitating processing. Specifically, the opening of the water inlet port 115 is circular, so the protruding ring 123 is also in a circular ring shape, and is matched with the water inlet port 115, the protruding ring 123 and the water inlet port 115 are connected in a plug-in manner, and here, the outer diameter of the protruding ring 123 is greater than the diameter of the water inlet port 115, so that the protruding ring 123 and the water inlet port 115 are in an interference fit, thereby further enhancing the sealing performance of the cover plate 12. At the same time, in order to facilitate the insertion of the protruding ring 123 into the water inlet port 115, the end of the protruding ring 123 away from the cover plate 12 is chamfered, that is, the end is provided with a guide inclined surface, so that the protruding ring 123 slides into the water inlet port 115 through the guide inclined surface, thereby improving the convenience of covering the water inlet port 115. The protruding ring 123 is also provided with a barb surface in the axial direction of the water inlet port 115, the barb surface faces the inner side surface of the cover plate 12, and when the protruding ring 123 is completely inserted into the water inlet port 115, the barb surface can abut against the inner side surface of the cover plate 12, thereby preventing the cover plate 12 from falling off and improving the covering stability of the cover plate 12.

[0089] Please combine Figure 13 and Figure 14 In optional embodiments, the box 11 is provided with a sink 114, the bottom wall of the sink 114 is provided with the water inlet 115, the cover plate 12 is arranged in the sink 114, the protruding ring 123 is inserted into the water inlet 115, and the surface of the cover plate 12 away from the bottom wall of the sink 114 is flush with the outer surface of the box 11.

[0090] In this embodiment, in order to make the water tank 10 beautiful, the outer surface of the box 11 is concavely provided with the sink 114, the water inlet 115 is arranged on the bottom wall of the sink 114, when the cover plate 12 covers the water inlet 115, the surface of the cover plate 12 away from the bottom wall of the sink 114 is flush with the outer surface of the box 11, so that the outside of the water tank 10 is smooth and flat, and is not easy to interfere with other components. At the same time, when the cover plate 12 is opened to add water to the water inlet 115, the arrangement of the sink 114 can also effectively prevent the water flowing out of the periphery of the water inlet 115 from flowing to the outside of the water tank 10, can provide a buffer space for the water overflowing from the water inlet 115, and further improve the convenience of adding water.

[0091] Of course, in order to facilitate the opening of the cover plate 12 to add water, the opening area of the sink 114 is greater than the surface area of the cover plate 12, and part of the space of the sink 114 is used to provide a position for the fingers to pry open, thereby improving the convenience of opening the cover plate 12.

[0092] In order to prevent the cover plate 12 from being lost, in optional embodiments, the bottom wall of the sink 114 is provided with a through hole 116 arranged in a spaced manner with the water inlet 115, and the surface of the cover plate 12 facing the containing cavity 11a is provided with a fixing column 125, when the cover plate 12 covers the water inlet 115, the fixing column 125 is inserted into the through hole 116.

[0093] In this embodiment, the through hole 116 is arranged on the bottom wall of the sink 114, and the fixing column 125 is arranged on the surface of the cover plate 12 facing the containing cavity 11a, the fixing column 125 is also in interference fit with the through hole 116, when the protruding ring 123 is inserted into the water inlet 115, the fixing column 125 is also inserted into the through hole 116. Specifically, the length of the fixing column 125 in the axis direction of the through hole 116 is greater than the height of the protruding ring 123 in the axis direction of the water inlet 115, when the cover plate 12 is opened, the protruding ring 123 is separated from the water inlet 115, while the fixing column 125 is still inserted into the through hole 116, and can rotate with the through hole 116 in the circumferential direction, so that the cover plate 12 is rotated to a position not covering the water inlet 115, thereby effectively preventing the cover plate 12 from falling or being lost. It can be understood that the water inlet 115 is arranged between the position where the cover plate 12 does not cover the sink 114 and the through hole 116, so as to facilitate the dismounting of the connection relationship of the protruding ring 123 when the cover plate 12 is opened, while the connection relationship of the fixing column 125 is retained.

[0094] Of course, in order to facilitate the insertion of the fixing column 125, the free end of the fixing column 125 can also be chamfered, and at the same time, a fixing portion of the clamping through hole 116 is also provided, so as to prevent the fixing column 125 from being pulled out of the through hole 116.

[0095] Please refer to Figure 1 , Figure 5 and Figure 15 , the application further provides a sweeping robot 100, which comprises a water tank 10, and the specific structure of the water tank 10 is referred to the above embodiments. Since the water tank 10 of the sweeping robot 100 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0096] The sweeping robot 100 further comprises a shell 30, a pump body 50 and a spray head assembly 70. The shell 30 forms a space for mounting the water tank 10. The water suction head of the pump body 50 is communicated with the water outlet 111 through a pipeline. The output port is communicated with the spray head assembly 70 through a pipeline. The spray head assembly 70 comprises a spray head, and a plurality of spaced water outlets are arranged on the spray head. When mopping is needed, the pump body 50 is controlled to suck water from the water tank 10 and deliver the water to the water outlets of the spray head assembly 70, so as to achieve the purpose of mopping after the cloth is soaked. Since the water in the water tank 10 is filtered by the filtering assembly 13, the service performance of the pump body 50 and the spray head assembly 70 is effectively improved, and the service life thereof is prolonged.

[0097] The above only describes the preferred embodiments of the application, and does not limit the patent scope of the application. Any equivalent structural transformation made under the inventive concept of the application, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A water tank for a sweeping robot, characterized in that, The water tank includes: The tank body has a receiving cavity, and the tank body also has a water outlet communicating with the receiving cavity; and A filter assembly is disposed on the bottom wall of the receiving cavity and is connected to the water outlet through a pipeline; The filter assembly includes a connector and a filter element. The filter element is disposed on the bottom wall of the receiving cavity. The connector has a water suction hole. The filter element is connected to the water suction hole. The water suction hole is connected to the water outlet through the pipeline. The bottom wall of the receiving cavity is provided with a receiving groove, the filter element is arranged in a ring in the receiving groove, and the filter element is partially exposed on the groove wall of the receiving groove. The liquid in the receiving cavity passes through the filter element and the receiving groove in sequence and then flows out through the drain hole. The water tank also includes a mounting base, and the bottom wall of the receiving cavity is provided with a mounting hole. The portion of the mounting base embedded in the mounting hole forms the receiving groove. The mounting base includes a mounting cylinder and a mounting plate. The mounting cylinder is vertically disposed on one surface of the mounting plate and forms the receiving groove. The mounting cylinder is partially embedded in the mounting hole, and the mounting plate is attached to the outer surface of the housing.

2. The water tank as described in claim 1, characterized in that, The bottom wall of the receiving cavity is provided with a support seat, the support seat forms a fastening groove that covers the mounting cylinder, the connector is provided on the outer wall surface of the fastening groove, the water extraction hole is connected to the fastening groove, and the peripheral wall of the fastening groove is provided with a seepage hole that is connected to the receiving cavity.

3. The water tank as described in claim 2, characterized in that, The end of the mounting cylinder away from the mounting plate abuts against the bottom wall of the fastening groove, and the peripheral wall of the mounting cylinder is provided with a water passage hole that connects the seepage hole and the receiving groove.

4. The water tank as described in claim 3, characterized in that, One end of the filter element abuts against the mounting plate, and the filter element completely covers the water passage hole in the axial direction of the mounting hole.

5. The water tank as described in any one of claims 1 to 4, characterized in that, The water tank also includes a sealing element, which is arranged around the periphery of the mounting cylinder and sandwiched between the mounting plate and the tank body.

6. The water tank as described in any one of claims 1 to 4, characterized in that, The water tank also includes a cover plate and a pressure regulating component. The tank body is also provided with a water inlet communicating with the receiving cavity. The cover plate covers the water inlet and is provided with an air inlet communicating with the receiving cavity. The pressure regulating component blocks the air inlet and has a closed state and a permeable state when there is a pressure difference inside and outside the receiving cavity.

7. The water tank as described in claim 6, characterized in that, The air pressure regulating component is disposed on the surface of the cover plate facing the receiving cavity. The air pressure regulating component has a slit, and the two side walls of the slit have a moving away state and an abutting state, so that the air pressure regulating component has a closed state and an air-permeable state.

8. The water tank as described in claim 7, characterized in that, The air pressure regulating component and the cover plate are integrally formed; and / or The air pressure regulating component has an air intake groove that communicates with the air inlet, and the groove wall of the air intake groove has the slit.

9. The water tank as described in claim 8, characterized in that, When the air pressure regulating component has an air inlet groove communicating with the air inlet, the cross-sectional area of ​​the air inlet groove tends to decrease in the air inlet direction, and the slit is provided at the bottom of the air inlet groove away from the air inlet.

10. The water tank as described in claim 6, characterized in that, The cover plate has a raised ring on its surface facing the receiving cavity. The raised ring surrounds the air pressure regulating component and is fitted into the water inlet; and / or The housing has through holes spaced apart from the water inlet. The surface of the cover plate facing the receiving cavity is provided with a fixing post. When the cover plate is closed on the water inlet, the fixing post is inserted into the through hole.

11. A sweeping robot, characterized in that, Includes the water tank as described in any one of claims 1 to 10.

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