Filter device, underwater cleaning machine, and pool cleaning system

Abstract

Disclosed in the present application are a filter device, an underwater cleaning machine, and a pool cleaning system. The filter device comprises: a housing comprising a first housing and a second housing connected to the first housing, the first housing having an accommodating space, and the second housing covering an opening of the accommodating space, wherein the first housing tapers and extends from the end close to the second housing to the end away from the second housing.

Description

Filtering device, underwater cleaning machine and pool cleaning system

[0001] The present application claims priority to the Chinese Patent Application No. 2024113868478, filed on September 30, 2024, entitled "Pool cleaning system", the Chinese Patent Application No. 202411522053X, filed on October 29, 2024, entitled "Pool cleaning system", the Chinese Patent Application No. 202520760932X, filed on April 21, 2025, entitled "Filtering device and pool cleaning robot system", the Chinese Patent Application No. 2025207635428, filed on April 21, 2025, entitled "Underwater cleaning machine", the Chinese Patent Application No. 2025211071076, filed on May 30, 2025, entitled "Filtering device, pool cleaning robot and pool cleaning system", all of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of pool cleaning, in particular to a filtering device, an underwater cleaning machine and a pool cleaning system. BACKGROUND

[0003] The pool cleaning robot is a robot capable of performing cleaning tasks in a pool. Generally, the filtering device is arranged in the interior of the body of the pool cleaning robot, and the filtering device collects the dirt in the pool during the pool operation of the pool cleaning robot.

[0004] However, the filtering device in the related art pool cleaning robot has the problem that the dirt cleaning and recycling is not thorough enough, which affects the user experience of the personnel. SUMMARY

[0005] The present application provides a filtering device, an underwater cleaning machine and a pool cleaning system, aiming to improve the problem that the dirt cleaning and recycling in the filtering device is not thorough enough.

[0006] Embodiments of the first aspect of the present application provide a filtering device, comprising: a housing, the housing comprising a first housing and a second housing connected with the first housing, the first housing having a containing space, and the second housing covering an opening of the containing space; wherein the first housing extends from one end close to the second housing to the other end away from the second housing.

[0007] The filtering device in the embodiments of the present application, when the underwater cleaning machine is connected with the base station, the bottom wall of the first shell is arranged downward. Since the first shell extends from the end close to the second shell to the end away from the second shell, the dirt is gathered at the narrow position formed after convergence. When the dirt suction pump is working, the dirt gathered together can be easily sucked away under the suction of the dirt suction pump. In this way, the dirt in the filtering device can be recycled more completely, and the residual dirt in the filtering device is reduced.

[0008] The embodiments of the second aspect of the present application provide an underwater cleaning machine, comprising a machine body and a filtering device.

[0009] The filtering device comprises a shell, the shell comprising a first shell and a second shell connected with the first shell, the first shell having a containing space, and the second shell covering an opening of the containing space; wherein the first shell extends from the end close to the second shell to the end away from the second shell.

[0010] The underwater cleaning machine further comprises at least one docking interface II and a machine body outlet, and the docking interface II is arranged on or connected with the machine body.

[0011] The filtering device is arranged in the machine body. When the underwater cleaning machine is in a cleaning mode, water flows into the machine body through the docking interface II, is filtered by the filtering device, and is discharged from the machine body outlet.

[0012] The first shell and the second shell are arranged along the direction of the machine body and are connected in a detachable manner. The second shell is provided with a first filtering member, and the water inlet of the first shell is in communication with the docking interface II.

[0013] The embodiments of the third aspect of the present application provide a pool cleaning system, comprising an underwater cleaning machine, the underwater cleaning machine comprising a machine body and a filtering device, the filtering device comprising a shell, the shell comprising a first shell and a second shell connected with the first shell, the first shell having a containing space, and the second shell covering an opening of the containing space; wherein the first shell extends from the end close to the second shell to the end away from the second shell.

[0014] The underwater cleaning machine further comprises at least one docking interface II and a machine body outlet, and the docking interface II is arranged on or connected with the machine body.

[0015] The filtering device is arranged in the machine body. When the underwater cleaning machine is in a cleaning mode, water flows into the machine body through the docking interface II, is filtered by the filtering device, and is discharged from the machine body outlet.

[0016] The first shell and the second shell are arranged along the direction of the fuselage and are detachably connected, and the second shell is provided with a first filter element, and a water inlet of the first shell is communicated with the docking port II. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0018] Fig. 1 is a structural schematic diagram of a filter device provided by an embodiment of the present application;

[0019] Fig. 2 is a sectional view of the filter device provided by an embodiment of the present application (corresponding to the state of the underwater cleaning machine when working at the bottom of the pool);

[0020] Fig. 3 is a structural schematic diagram of the filter device provided by an embodiment of the present application from another perspective;

[0021] Fig. 4 is a schematic diagram of the filter device provided by an embodiment of the present application when the second shell is hidden;

[0022] Fig. 5 is a sectional view of the filter device provided by an embodiment of the present application (corresponding to the state of the underwater cleaning machine when climbing the wall or connecting with the base station);

[0023] Fig. 6 is a structural schematic diagram of an underwater cleaning machine provided by an embodiment of the present application;

[0024] Fig. 7 is another structural schematic diagram of the filter device provided by an embodiment of the present application;

[0025] Fig. 8 is another sectional view of the filter device provided by an embodiment of the present application;

[0026] Fig. 9 is another structural schematic diagram of an underwater cleaning machine provided by an embodiment of the present application;

[0027] Fig. 10 is a structural schematic diagram of the filter device in the underwater cleaning machine of Fig. 9;

[0028] Fig. 11 is a sectional view of a working state of the filter device in the underwater cleaning machine of Fig. 9;

[0029] Fig. 12 is a structural schematic diagram of a rolling element in the filter device of Fig. 11;

[0030] Fig. 13 is a sectional view of another working state of the filter device in the underwater cleaning machine of Fig. 9;

[0031] Fig. 14 is a structural schematic diagram of the underwater cleaning machine from another perspective (corresponding to the posture of the underwater cleaning machine when it is lifted and connected with the base station) according to an embodiment of the present application;

[0032] Fig. 15 is another structural schematic diagram of the filtering device according to an embodiment of the present application;

[0033] Fig. 16 is a structural schematic diagram of the pool cleaning system according to an embodiment of the present application;

[0034] Fig. 17 is a structural schematic diagram of the base station and the dirt suction device according to an embodiment of the present application;

[0035] Fig. 18 is another structural schematic diagram of the underwater cleaning machine according to an embodiment of the present application;

[0036] Fig. 19 is a sectional schematic diagram of the pool cleaning system according to an embodiment of the present application;

[0037] Fig. 20 is a partial structural schematic diagram of the dirt suction device according to another embodiment of the present application;

[0038] Fig. 21 is a structural schematic diagram of the collection box according to an embodiment of the present application;

[0039] Fig. 22 is a structural schematic diagram of the flushing device according to an embodiment of the present application;

[0040] Fig. 23 is a partial schematic diagram of the dirt suction pump according to an embodiment of the present application.

[0041] Reference signs: 1, pool cleaning system; 10, underwater cleaning machine; 20, base station; 202, suction docking port; 40, mounting piece; 41, third filter piece; 100, filtering device; 200, driving assembly; 300, machine body; 311, docking port II; 312, machine body outlet; 104, shell; 105, inlet flow channel; 1051, first flow channel wall; 10511, first section; 10512, second section; 1052, second flow channel wall; 101, water inlet; 102, water outlet; 103, water passing gap; 110, first shell; 110a, containing space; 111, side wall; 112, bottom wall; 1121, recess; 1122, first wall plate; 1123, second wall plate; 113, second filter piece; 1131, filter screen; 1132, first switch piece; 120, second shell; 121, first filter piece; 1101, slope; 130, drainage channel; 131, first end; 132, second end; 1301, first section; 1302, second section; 1303, movable plate; 2226, rolling piece; 2227, rotating shaft; 22271, sponge pad; 2228, gap; 2229, blade; 22291, protruding part; 140, guide piece; 141, first end; 142, second end; 1401, arc-shaped plate section; 150, handle; 160, second switch piece; 170, cover plate; 171, main plate body; 172, protruding block; 180, flushing device; 181, drainage hole; 320, suction pipeline; 330, suction pump; 331, water flow guide piece; 340, connecting pipeline; 350, filtering equipment; 360, collection box; 361, box body; 3611, box body inlet; 3612, backwater hole; 362, containing box; 400, sealing piece. DETAILED DESCRIPTION

[0042] For the purposes of the present application, the technical solutions and advantages will be clearer, the following will be further described in detail with the embodiments of the present application.

[0043] The following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0044] In the description of the present application, it is understood that the terms "first", "second" and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance. The above terms can be understood by those of ordinary skill in the art according to the specific meaning in the present application. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship of the associated objects is described, and it means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents a "or" relationship between the associated objects before and after it.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] As shown in FIGS. 1-6, the embodiment of the first aspect of the present application provides a filtering device 100, which comprises a housing 104, the housing 104 comprising a first housing 110 and a second housing 120 connected with the first housing 110, the first housing 110 having a containing space 110a, and the second housing 120 covering the opening of the containing space 110a. Wherein, the first housing 110 extends (i.e. gradually narrows) from the end close to the second housing 120 to the end away from the second housing 120.

[0047] The filtering device 100 in the embodiments of the present application is used in the underwater cleaning machine 10. The underwater cleaning machine 10 has a working posture on the bottom of a pool, a working posture on the side wall of the pool, and a recovery posture connected with the base station 20. When the underwater cleaning machine 10 works in the pool, the filtering device 100 can collect the dirt (mainly solid waste) in the water. It can be understood that the posture of the filtering device 100 will change according to the posture of the underwater cleaning machine 10. Specifically, when the underwater cleaning machine 10 works on the bottom of the pool, the side wall 111 of the first shell 110 faces downward (as shown in FIG. 2), the side wall 111 of the first shell 110 is provided with the water inlet 101, and the second shell 120 is formed with the water outlet 102. When the underwater cleaning machine 10 climbs along the pool wall, the bottom wall 112 of the first shell 110 faces downward (as shown in FIG. 5), at this time, the water inlet 101 faces the horizontal direction. When the underwater cleaning machine 10 is connected with the base station, the bottom wall 112 of the first shell 110 faces downward (as shown in FIG. 5), and the water inlet 101 faces the horizontal direction. That is, in the last two cases, the posture of the filtering device 100 is the same.

[0048] When the underwater cleaning machine 10 performs a cleaning task, the water flows into the containing space 110a of the shell 104 through the water inlet 101, and then is discharged through the water outlet 102. Generally, a filtering assembly is further arranged in the filtering device 100, and the dirt carried by the water flow is retained in the containing space 110a of the shell 104 under the filtering effect of the filtering assembly.

[0049] In the filtering device 100 in the embodiments of the present application, when the underwater cleaning machine 10 is connected with the base station, the bottom wall 112 of the first shell 110 is arranged to face downward. Since the first shell 110 extends convergently from the end close to the second shell 120 to the end away from the second shell 120, the dirt is gathered at the narrow position formed after the convergence. When the dirt suction pump works, the dirt gathered together can be easily sucked away under the suction effect of the dirt suction pump. In this way, it is beneficial to the complete recovery of the dirt in the filtering device 100 and reduces the residual dirt in the filtering device 100.

[0050] As shown in FIG. 2 and FIG. 5, in some embodiments, the first shell 110 convergently extends, and a first end face is formed at the end of the first shell 110 away from the water outlet. The area of the first end face is smaller than the area of the opening of the containing space 110a. In this way, when the underwater cleaning machine 10 is connected with the base station, the dirt is gathered at the first end face, and the dirt is relatively concentrated and can be easily sucked away.

[0051] As shown in FIG. 2 and FIG. 5, in some embodiments, the first end face is arranged opposite to the center of the second shell 120. For example, the first end face is opposite to the center of the second shell 120 or slightly deviates from the center of the second shell 120. In this way, the first end face is opposite to the center of the opening of the first shell 110, which is conducive to the silt at each position in the containing space 110a to gather at the first end face under the action of gravity when the underwater cleaning machine 10 is connected to the base station.

[0052] As shown in FIG. 1 and FIG. 2, in some embodiments, the second shell 120 has a plate structure. In this way, it is convenient to arrange the filtering device 100 in the fuselage 300.

[0053] As shown in FIG. 5, in some embodiments, the first shell 110 includes a side wall 111 and a bottom wall 112 connected to the side wall 111, the side wall 111 is arranged adjacent to the second shell 120, the bottom wall 112 is arranged opposite to the second shell 120, and the side wall 111 is provided with the water inlet 101. The bottom wall 112 is formed with a recess 1121 recessed away from the second shell 120, and the first end face is formed on the recess 1121. By arranging the recess 1121 on the bottom wall 112, the first shell 110 can be easily constructed to extend from one end close to the second shell 120 to the other end away from the second shell 120, thereby meeting the requirement of gathering silt at the first end face.

[0054] As shown in FIG. 2 and FIG. 5, in some embodiments, the bottom wall 112 includes a first wall plate 1122 and a second wall plate 1123, the first wall plate 1122 is a plurality of and arranged around the second wall plate 1123, the second wall plate 1123 is connected to the plurality of first wall plates 1122, and one side of the second wall plate 1123 facing the opening constitutes the first end face. The included angle between the first wall plate 1122 and the second wall plate 1123 is greater than 90° and less than 180°.

[0055] In this way, the recess 1121 recessed away from the second shell 120 can be constructed on the bottom wall 112 of the first shell 110 by the first wall plate 1122 and the second wall plate 1123, thereby achieving the effect of gathering silt in the recess 1121 of the bottom wall 112.

[0056] As shown in FIG. 1, FIG. 2 and FIG. 5, in some embodiments, at least one first wall plate 1122 has a trapezoidal structure. In this way, on the one hand, the first shell 110 can form a bottom converging structure. On the other hand, the first wall plate 1122 of the trapezoidal structure of the first shell 110 can form a guide surface, and the silt can slide along the first wall plate 1122 to the bottom converging end of the first shell 110. Therefore, it is conducive to further reducing the residual silt in the filtering device 100 when recycling garbage.

[0057] Optionally, as shown in FIG. 2, each of the plurality of first wall plates 1122 is in a trapezoidal structure. In this way, the first shell 110 can be formed in a regular converging extension shape, thereby further reducing the residual dirt in the filter device 100.

[0058] In one of the embodiments, the included angle between the first wall plate 1122 and the second wall plate 1123 is greater than or equal to 120° and less than or equal to 160°.

[0059] If the value of the included angle is too large, the recessed degree of the recess 1121 will be less obvious, so that it is difficult to make the dirt gather at the recess 1121. On the contrary, if the value of the included angle is too small, the size of the first shell 110 in the recessed direction will be too large, thereby causing the volume of the filter device 100 to be too large. Therefore, the value of the included angle is limited in the range of 120° to 160°, and a large number of tests have verified that, under the condition of meeting the above condition, the effect of gathering dirt at the recess 1121 is better, and the volume of the filter device 100 will not be too large.

[0060] As shown in FIG. 2 and FIG. 5, in some embodiments, the filter device 100 further comprises a drainage channel 130, the drainage channel 130 is connected with the first shell 110, and the drainage channel 130 communicates with the containing space 110a of the shell 104. The first shell 110 comprises a side wall 111 and a bottom wall 112 connected with the side wall 111, the side wall is provided with a water inlet 101, a first end 131 of the drainage channel 130 is located at the water inlet 101, and a second end 132 of the drainage channel 130 extends to be substantially opposite to the converging extension end of the first shell 110.

[0061] When the underwater cleaner 10 performs a cleaning task, the water flows into the containing space 110a of the shell 104 through the water inlet 101 and the drainage channel 130, and then is discharged through the water outlet 102. In the above process, the water flows through the filter assembly of the filter device 100, thereby filtering the water in the pool.

[0062] When the underwater cleaner 10 is connected with the base station, the dirt suction docking interface on the base station can extend into the drainage channel 130 through the water inlet 101. Since the second end 132 of the drainage channel 130 extends to be substantially opposite to the converging extension end of the first shell 110, in this way, when the dirt suction pump is working, the dirt gathered at the converging extension end of the first shell 110 can be more easily sucked away through the drainage channel 130 under the suction of the dirt suction pump, thereby facilitating the more complete recovery of the dirt in the filter device 100, so as to further reduce the residual dirt in the filter device 100.

[0063] In one embodiment, the first housing 110 converges in extension to form a first end face at an end of the first housing 110 distal to the opening, the first end face having an area smaller than that of the opening. The second end 132 of the flow channel 130 extends to and is opposite to the first end face.

[0064] In this way, when the underwater cleaning machine 10 is connected to the base station, the dirt will gather at the first end face, and the second end 132 of the flow channel 130 extends to and is opposite to the first end face. In this way, the dirt at the first end face can be more easily sucked away through the flow channel 130, thereby facilitating more complete recovery of the dirt in the filter device 100.

[0065] In one embodiment, the difference between the opening area of the second end 132 of the flow channel 130 and the area of the first end face is less than or equal to 20% of the area of the first end face. In this way, the opening area of the second end 132 of the flow channel 130 is substantially equivalent to the area of the first end face, which on the one hand can avoid the opening area of the flow channel 130 being too small to cause the flow channel 130 to easily become blocked, and on the other hand can also avoid the opening area of the flow channel 130 being too large to cause the water flow to have a low flow rate when passing through the flow channel 130, thereby affecting the recovery efficiency of the dirt.

[0066] Preferably, the difference between the opening area of the second end 132 of the flow channel 130 and the area of the first end face is less than or equal to 10% of the area of the first end face. In this way, the flow channel 130 can be better prevented from becoming blocked, and the problem of the water flow having a low flow rate when passing through the flow channel 130 can also be avoided.

[0067] As shown in FIGS. 2 and 5, in some embodiments, the flow channel 130 has at least an arc-shaped section. In this way, when the water flow flows in the flow channel, the collision between the water flow and the wall surface of the channel can be reduced, thereby reducing the energy loss of the water flow.

[0068] As shown in FIGS. 2 and 5, in one embodiment, the flow channel 130 includes a first section 1301 and a second section 1302 connected to the first section 1301, the second section 1302 being located on a side of the first section 1301 distal to the water inlet 101, the first section 1301 being configured as a straight section, and the second section 1302 being configured as an arc-shaped section.

[0069] In some cases, the filtering device 100 has a large size in the horizontal direction (corresponding to the case where the bottom wall 112 of the first shell 110 faces downward), and at this time, the horizontal distance between the water inlet 101 and the recess 1121 is far, so the guide channel can be configured to include a first section 1301 and a second section 1302 connected to each other, wherein the first section 1301 is a straight section, and the second section 1302 is an arc-shaped section, so that the guide channel is more suitable in shape for the case where the horizontal distance between the water inlet 101 and the recess 1121 is far, and also makes the guide channel transition more naturally in shape, thereby facilitating reducing the energy loss of the water flow when flowing in the guide channel 130.

[0070] In some embodiments, the guide channel 130 is detachably connected with respect to the first shell 110. In this way, it is convenient to maintain or replace the guide channel 130.

[0071] As shown in FIGS. 2, 5, in some embodiments, a water gap 103 is provided between the second end 132 of the guide channel 130 and the containing space 110a of the shell 104. Through the water gap 103, the guide channel is in communication with the containing space 110a of the shell 104, so that when the underwater cleaning machine 10 performs a cleaning task, external water can enter the containing space 110a of the shell 104 through the guide channel, and after filtration, it is discharged by the water outlet 102. In addition, the guide channel is in communication with the containing space 110a of the shell 104, when the underwater cleaning machine 10 is connected with the base station, and the dirt is recycled by the base station, the dirt in the containing space 110a of the shell 104 can also enter the guide channel through the water gap 103, and further be sucked away by the dirt suction pump.

[0072] As shown in FIGS. 2, 3, 4 and 5, in one of the embodiments, the filtering device 100 further comprises a guide 140, which is located inside the shell 104 and is provided on the side of the guide channel 130 close to the second shell 120.

[0073] When the dirt suction pump is working, external water enters the filtering device 100 from the water outlet 102, and is discharged by the water inlet 101 after passing through the guide channel 130, in this process, the water flow carries dirt together and is sucked away by the dirt suction pump. The connection between the guide channel 130 and the side wall 111 forms a relatively obvious corner structure, which makes it easy to form a vortex at this position, and the generation of the vortex also causes it difficult to completely suck away the dirt. In this embodiment, by providing the guide 140 between the guide channel 130 and the second shell 120, the guide 140 can inhibit the generation of the vortex, that is, it can avoid the formation of the vortex at the position where the first end 131 of the guide channel 130 is located, thereby improving the efficiency of the water flow in and out of the filtering device 100, thereby facilitating reducing the dirt residue in the filtering device 100.

[0074] In one embodiment, the first end 141 of the guide 140 is close to the sidewall 111 of the first housing 110, and the second end 142 of the guide 140 is close to the second end 132 of the drainage passage 130. In this case, when the bottom wall 112 of the housing 104 is arranged downwardly, the second end 142 of the guide 140 is lower than the first end 141 of the guide 140 (see FIG. 5).

[0075] When the bottom wall 112 of the housing 104 is arranged downwardly, the second end 142 of the guide 140 is lower than the first end 141 of the guide 140, and in this case, the guide 140 is arranged obliquely. In the case where the underwater cleaner 10 is connected to the base station, the dirt in the accommodation space 110a of the housing 104 falls to the position of the second end 132 of the drainage passage 130 under the guidance of the guide 140, so as to pass through the water gap 103 to the first end face. In this way, when the underwater cleaner 10 is docked with the base station and the dirt suction pump is working, the dirt at the first end face can more easily enter the guide passage and be further sucked away by the dirt suction pump. Thus, the dirt remaining in the filter device 100 can be further reduced.

[0076] In one embodiment, the guide 140 is configured as a flat plate structure, so that the guide 140 is easy to process and is conducive to shortening the processing time.

[0077] As shown in FIGS. 2 and 5, in another embodiment, the guide 140 has at least an arc-shaped plate segment 1401. The arc-shaped plate segment 1401 has a good guiding effect on the water flow, so that it is conducive to inhibiting the formation of vortex during the water flow passing through the guide 140. The formation of vortex can reduce the filtering efficiency of the filter device 100, and therefore, in the case where the guide 140 has at least the arc-shaped plate segment 1401, the filtering efficiency of the filter device 100 can be improved.

[0078] In one embodiment, the guide 140 is detachably connected with the drainage passage 130. In this way, the guide 140 is easy to maintain or replace. In addition, when the filter device 100 is assembled, the guide 140 and the drainage passage 130 can be assembled into an assembly first, and then the assembly is connected with the first housing 110. Thus, the assembly process is easier to operate, so as to be conducive to improving the assembly efficiency.

[0079] As shown in FIGS. 2 and 5, in one embodiment, the second end 132 of the drainage passage 130 is provided with a movable plate 1303, and the movable plate 1303 is movably connected with the passage wall of the drainage passage 130. By changing the angle of the movable plate 1303, the flow area of the water gap 103 can be changed.

[0080] The second end 132 of the flow channel 130 is provided with a movable plate 1303. When the underwater cleaner 10 is performing a cleaning task, the movable plate 1303 can be rotated relative to the channel wall of the flow channel 130, so as to increase the flow area of the water passing gap 103, thereby improving the cleaning efficiency of the underwater cleaner 10.

[0081] It can be understood that, please refer to FIG. 6, the underwater cleaner 10 is internally provided with a driving assembly 200 (for example, a water pump). Under the driving of the driving assembly 200, external water can enter the filter device 100 for filtration. Therefore, the movable plate 1303 can be hinged to the channel wall of the flow channel 130. In this way, in the process of water flow entering the containing space 110a of the housing 104 from the guide channel, the water flow can drive the movable plate 1303 to rotate, so as to increase the flow area of the water passing gap 103.

[0082] Alternatively, a motor for driving the movable plate 1303 to rotate can also be provided. When the underwater cleaner 10 is performing a cleaning task, the motor can be used to control the movable plate 1303 to rotate, so as to increase the flow area of the water passing gap 103.

[0083] In some embodiments, the filter device 100 further comprises a filter assembly (not shown in the figure), which is arranged in the second housing 120. For example, the filter assembly can comprise at least one of a porous material (for example, a sponge) and a filter screen.

[0084] During the performance of a cleaning task by the underwater cleaner 10, in the process of water flow entering the containing space 110a of the housing 104 from the water inlet 101 and then being discharged from the water outlet 102, the filter assembly can perform filtration treatment on the water flow, and the filtered dirt can be left in the containing space 110a.

[0085] As shown in FIGS. 2 and 3, in some embodiments, the filter device 100 further comprises a handle 150, which is fixedly connected with the first housing 110. By holding the handle 150, the filter device 100 can be easily lifted and transferred. In this way, the filter device 100 can be conveniently detached from the body 300 of the underwater cleaner 10 or installed on the body 300 of the underwater cleaner 10.

[0086] As shown in FIG. 7 and FIG. 8, in some other embodiments, the filtering device 100 is formed with an inlet flow channel 105 which is in communication with the water inlet 101, the inlet flow channel 105 has a first flow channel wall 1051 and a second flow channel wall 1052 which are oppositely arranged along a first direction, the first flow channel wall 1051 comprises a first section 10511, the wall surface of the first section 10511 is a concave arc surface, and the first section 10511 is oppositely arranged with the water inlet 101 along a second direction, the first direction is perpendicular to the normal direction of the plane where the water inlet 101 is located, and the second direction is parallel to the normal direction of the plane where the water inlet 101 is located.

[0087] It can be understood that the inlet flow channel 105 is a flow channel structure which is directly in communication with the water inlet 101, and the external water enters the water inlet 101 of the filtering device 100 and is guided by the inlet flow channel 105 to enter the containing space 110a of the filtering device 100.

[0088] The inlet flow channel 105 has a first flow channel wall 1051 and a second flow channel wall 1052 which are oppositely arranged along a first direction, wherein the first flow channel wall 1051 comprises a first section 10511, the wall surface of the first section 10511 is a concave arc surface, and the first section 10511 is oppositely arranged with the water inlet 101 along a second direction. In this way, when the underwater cleaning machine 10 is working in the pool, the external water entering the water inlet 101 of the filtering device 100 is first guided by the first section 10511 to change the flow direction, so that the water flow originally flowing along the second direction is deviated to the first direction. In the process of changing the flow direction, the garbage carried by the water flow is also blocked by the first section 10511, so that the movement of the garbage is blocked, thereby avoiding the garbage being flushed by the water flow to the deep part of the containing space 110a of the filtering device 100, and making the garbage stay as close to the water inlet 101 as possible, so that after the underwater cleaning machine 10 is connected with the base station 20, the garbage in the filtering device 100 can be more easily sucked away by the sewage pump 330.

[0089] In one of the embodiments, as shown in FIG. 8, the first flow channel wall 1051 further comprises a second section 10512, the second section 10512 is located at the end of the first section 10511 away from the water inlet 101, the second section 10512 is connected with the first section 10511, and the wall surface of the second section 10512 is an outward convex arc surface.

[0090] The water from outside enters the water inlet 101 of the filtering device 100, is guided by the first section 10511 to change the flow direction, and then is guided by the second flow channel wall 1052 and the second section 10512 of the first flow channel wall 1051 to flow to the deep part of the containing space 110a of the filtering device 100, and finally is discharged through the water outlet of the filtering device 100. The second section 10512 is configured as an outward convex arc surface, which is beneficial to improve the flow characteristics of the water flow through the inlet flow channel 105, reduce the probability of vortex formation, and thus improve the working efficiency of the underwater cleaning machine 10 when cleaning the pool.

[0091] In one of the embodiments, the inner wall surface of the first shell 110 forms the second flow channel wall 1052, and the wall surface of the second flow channel wall 1052 is an inward concave arc surface. When the underwater cleaning machine 10 is connected with the base station 20, the second flow channel wall 1052 is lower than the water inlet 101.

[0092] The second flow channel wall 1052 is the inner wall surface of the first shell 110, and the wall surface of the second flow channel wall 1052 is an inward concave arc surface. In this way, on the one hand, the first shell 110 forms a shape extending convergently from the end close to the second shell 120 to the end away from the second shell 120, and a recess 1121 is formed at the bottom of the first shell 110, so as to meet the requirement of gathering the dirt in the recess 1121. On the other hand, the water flow entering the inlet flow channel 105 can be guided better. In addition, when the underwater cleaning machine 10 is connected with the base station 20, the second flow channel wall 1052 is lower than the water inlet 101. In this way, the garbage can be kept more concentrated in the inlet flow channel 105, so that the dirt in the filtering device 100 can be more easily sucked away by the dirt suction pump 330.

[0093] In some embodiments, as shown in FIG. 8 and with reference to FIG. 5, the containing space 110a has a slope 1101, so that the garbage is deposited by gravity to the flow channel mouth of the drainage channel 130 or the inlet flow channel 105. In this way, when the garbage is recycled, the garbage can be more easily guided to enter the drainage channel 130 or the inlet flow channel 105, and then enter the base station 20 through the drainage channel 130 or the inlet flow channel 105 and the dirt suction docking port 202.

[0094] Further, the drainage channel 130 or the inlet flow channel 105 has a trumpet-like structure close to the end of the lowest part of the containing space 110a. In this way, the garbage at the lowest part of the containing space 110a can be more easily guided to enter the drainage channel 130 or the inlet flow channel 105, and then enter the base station 20 through the drainage channel 130 or the inlet flow channel 105 and the dirt suction docking port 202.

[0095] Referring to FIGS. 9-11, the filtering device 100 includes a housing 104, a drainage channel 130, and a rolling member 2226. The housing 104 has a containing space 110a and a water inlet 101 communicating with the containing space 110a; the drainage channel 130 is at least partially arranged in the containing space 110a, and has a first end 131 connected to the water inlet 101 and a second end 132; the rolling member 2226 is rotatably arranged on the channel wall of the second end 132, and has a stirring part capable of stirring the dirt in the containing space 110a.

[0096] When the underwater cleaning machine 10 is connected to the base station 20, the part of the dirt suction interface on the base station 20 communicates with the drainage channel 130 through the water inlet 101, so that the dirt suction pump can suck the dirt in the filtering device 100 through the dirt suction interface.

[0097] As the dirt accumulates in the containing space 110a of the housing 104, the dirt is prone to block the water flow, causing the dirt in the pool to be difficult to be collected by the underwater cleaning machine 10, or causing the dirt in the filtering device 100 to be difficult to be recycled by the base station 20.

[0098] The scheme provided in the embodiment is that the rolling member 2226 is arranged on the channel wall of the second end 132 of the drainage channel 130, and the rolling member 2226 is rotatably connected to the channel wall of the second end 132. When the underwater cleaning machine 10 collects the dirt in the pool, the rolling member 2226 can rotate relative to the channel wall of the second end 132 under the action of the water flow, stir the dirt such as branches in the containing space 110a of the housing 104, and then guide the dirt from the drainage channel 130 into the containing space 110a of the housing 104, so that the dirt is finally successfully collected by the underwater cleaning machine 10. When the base station 20 recycles the dirt in the filtering device 100 of the underwater cleaning machine 10, the rolling member 2226 can rotate relative to the channel wall of the second end 132 under the action of the water flow, and stir the dirt such as branches in the containing space 110a of the housing 104, and then guide the dirt into the drainage channel 130, so that the dirt is finally successfully recycled by the base station 20.

[0099] It can be seen that the embodiment can solve the problem that the dirt is prone to block the filtering device 100 of the underwater cleaning machine 10, affecting the normal work of the pool cleaning system 1.

[0100] Referring to FIGS. 11 and 12, in some embodiments, the rolling member 2226 can include a rotating shaft 2227 and a plurality of blades 2229. The two ends of the rotating shaft 2227 are rotatably connected to the channel wall of the second end 132; the plurality of blades 2229 are arranged on the outer peripheral wall of the rotating shaft 2227 around the rotating shaft 2227, and the plurality of blades 2229 constitute the stirring part.

[0101] The passage wall of the second end 132 can be provided with a bearing seat, a bearing is installed in the bearing seat, and the rotating shaft 2227 is rotationally connected with the passage wall of the second end 132 through the bearing. The passage wall of the second end 132 can also be provided with two protruding structures with mounting holes, a bushing is arranged in each of the two mounting holes, and the rotating shaft 2227 is rotationally connected with the passage wall of the second end 132 by being installed in the bushing. During installation, one end of the rotating shaft 2227 can be inserted into the bushing of one mounting hole, and the other end of the rotating shaft 2227 can be clamped into the bushing of the other mounting hole. The blades 2229 can be arranged in various forms on the outer peripheral wall of the rotating shaft 2227. For example, the blades 2229 can be uniformly distributed along the radial direction of the rotating shaft 2227, and the roots of the blades 2229 are connected with the rotating shaft 2227.

[0102] In the embodiment of the present application, the blades 2229 are arranged on the outer peripheral wall of the rotating shaft 2227, and the rotating shaft 2227 can drive the blades 2229 to rotate at the same time. The plurality of blades 2229 form a stirring part arranged around the rotating shaft 2227, so that the dirt such as branches in the containing space 110a of the shell 104 can be continuously stirred and quickly removed.

[0103] As shown in FIG. 12, in some embodiments, the blades 2229 can extend along the axis of the rotating shaft 2227 in a straight line direction. In other words, the blades 2229 can adopt a straight plate structure, so that the blades 2229 do not need to be made by complex molds and processing equipment, and the processing technology is relatively simple. In addition, due to the regular shape, the blades 2229 are not only easy to install and disassemble, but also can generate relatively uniform and stable water flow.

[0104] In other embodiments, the blades 2229 can extend along the axis of the rotating shaft 2227 in a spiral direction. The blades 2229 extending in the spiral direction have good water flow guiding ability. Specifically, the blades 2229 can better guide the flow direction and speed distribution of the water flow, reduce the vortex and energy loss of the water flow during flow, and can cope with complex water flow environment and maintain relatively stable working performance.

[0105] Referring to FIG. 12, in some embodiments, an end of the blade 2229 away from the rotating shaft 2227 is provided with a protruding part 22291 or a recessed part (not shown in the figure).

[0106] The protruding part 22291 can have various structures. For example, in one possible implementation, the protruding part 22291 can have a strip structure, and is arranged on one side or opposite sides of the end of the blade 2229 away from the rotating shaft 2227. In another possible implementation, the protruding part 22291 can have a spherical structure, and wraps around the end of the blade 2229 away from the rotating shaft 2227 and extends along the extension direction of the blade 2229. In yet another possible implementation, the protruding part 22291 can also have a dot structure, and is arranged in an array on one side or opposite sides of the end of the blade 2229 away from the rotating shaft 2227.

[0107] The recessed part can also have various structures. For example, in one possible implementation, the recessed part can have a strip structure, and is arranged on one side or opposite sides of the end of the blade 2229 away from the rotating shaft 2227. In another possible implementation, the recessed part can also have a dot structure, and is arranged in an array on one side or opposite sides of the end of the blade 2229 away from the rotating shaft 2227.

[0108] In the embodiments, the protruding part 22291 and the recessed part can increase the contact area and friction, so as to better achieve the stirring of the dirt such as branches in the accommodating space 110a of the shell 104. In addition, the protruding part 22291 can also increase the structural strength and rigidity of the blade 2229, in particular, the strip-shaped protruding part 22291 can improve the bending strength of the blade 2229. The recessed part can further reduce the weight of the blade 2229, and improve the lightweight degree of the underwater cleaning machine 10.

[0109] In some embodiments, the blade 2229 at least partially adopts an elastic member.

[0110] The elastic member can be made of elastic materials such as rubber, elastic polymer (e.g., polyurethane), elastic metal (e.g., nickel-titanium alloy), etc. The blade 2229 can be entirely made of the elastic member. In addition, the blade 2229 can also be partially made of the elastic member. For example, the blade 2229 can include a rigid connecting part and an elastic part, the rigid connecting part is made of a rigid structural member such as metal or hard plastic, and the rigid connecting part is connected to the outer peripheral wall of the rotating shaft 2227; the elastic part is made of the elastic member, and the elastic part is connected to the connecting part.

[0111] In the embodiments of the present application, the blades 2229 at least partially adopting elastic members can not only be elastically deformed under external force in the working process, thereby dispersing stress, reducing stress concentration, relieving fatigue failure caused by stress concentration, and effectively prolonging the service life of the blades 2229, but also can absorb energy by deformation when subjected to accidental impact or overload, thereby preventing the blades 2229 from breaking. For example, if the blades 2229 suddenly encounter the impact of stones and other foreign matters, the elastic blades 2229 can buffer the impact force by deformation to avoid the blades 2229 from breaking due to instantaneous excessive stress, thereby improving the durability of the rolling member 2226.

[0112] Referring to FIGS. 11, 12 and 13, in some embodiments, the number of blades 2229 is odd.

[0113] The number of blades 2229 can be three, five, seven, etc. For example, as shown in FIG. 5, the number of blades 2229 can be five.

[0114] In the embodiments of the present application, since the number of blades 2229 is odd, when the blades 2229 on the rotating shaft 2227 close to the gap 2228 close the gap 2228, as shown in FIG. 6, the blades 2229 on the rotating shaft 2227 away from the gap 2228 are directed toward the inner side of the drainage channel 130, and will not be directed toward the accommodating space 110a of the shell 104, thus on the one hand, the distance between the blades 2229 on the rotating shaft 2227 away from the gap 2228 and the cavity wall of the accommodating space 110a of the shell 104 will not be too small, thereby reducing the probability of jamming of leaves and other dirt, and on the other hand, the opening diameter of the drainage channel 130 near the cavity wall of the accommodating space 110a can be reduced to some extent, thereby increasing the flow rate in the drainage channel 130. The increase in flow rate will result in a decrease in pressure in the drainage channel 130, thereby further improving the adsorption capacity of the drainage channel 130. In addition, the number of blades 2229 is odd, which is beneficial to the smooth operation of the rolling member 2226.

[0115] In some embodiments, the blades 2229 are provided with through holes (not shown in the drawings).

[0116] The shape of the through hole can be various, for example, the cross section of the through hole can be a regular pattern such as a circle, an ellipse, a long strip, etc., or other irregular patterns. The number of through holes can be one or multiple. When the through holes are multiple, they can be arranged in a rectangular or annular array. The size of the through hole can be set according to actual needs.

[0117] The scheme provided by the embodiment of the present application can pass part of the water through the through hole when the water flows through the blade 2229, reduce the obstruction of the blade 2229 to the water flow, thereby controlling the speed of the water flow and reducing the pressure of the water flow on the blade 2229, so that the water flow flows more smoothly and stably on the blade 2229, effectively reducing the impact and vibration of the water flow on the blade 2229, reducing the noise generated when the blade 2229 rotates, and prolonging the service life of the blade 2229.

[0118] It can be understood that the connection mode of the rotating shaft 2227 and the blade 2229 can be various. In one possible implementation, the rotating shaft 2227 is fixedly connected with the blade 2229. For example, the permanent connection of the rotating shaft 2227 and the blade 2229 can be realized by means of one-piece molding, welding, bonding and the like. The fixed connection of the rotating shaft 2227 and the blade 2229 not only has the advantages of simple connection, convenience and low cost, but also can ensure the structural strength and installation accuracy of the connection of the rotating shaft 2227 and the blade 2229, and improve the working reliability of the rolling element 2226. In another possible implementation, the rotating shaft 2227 is detachably connected with the blade 2229. For example, the detachable connection of the rotating shaft 2227 and the blade 2229 can be realized by means of clamping, inserting, threaded connection and the like. The detachable connection of the rotating shaft 2227 and the blade 2229 not only can realize the disassembly and replacement of the blade 2229, but also can facilitate the regular maintenance, inspection or replacement of the damaged blade 2229, and can adjust the installation angle of the blade 2229 or replace the blade 2229 of different specifications according to different working conditions, thereby improving the adaptability of the rolling element 2226. In addition, when the rotating shaft 2227 is detachably connected with the blade 2229, a plurality of matched blades 2229 can be made for the rotating shaft 2227, and the hole diameters of the through holes in each blade 2229 are different. The user can select the blade with a through hole of a suitable hole diameter according to the working environment of the underwater cleaning machine 10.

[0119] For example, in some embodiments, one of the outer peripheral wall of the rotating shaft 2227 and the blade 2229 is provided with a mounting groove, and the other is provided with a connecting part, and the connecting part is connected with the mounting groove by inserting. In this way, through the inserting cooperation of the connecting part and the mounting groove, the blade 2229 can be installed on the rotating shaft 2227 by a simple inserting action, without the need of using complex assembly tools, and has the advantages of convenient installation and disassembly. Moreover, by providing the mounting groove, part of the material of the rolling element 2226 can be removed, effectively reducing the weight of the rolling element 2226, and further improving the lightweight degree of the underwater cleaning machine 10. The size of the mounting groove and the connecting part is matched, and the designer can design appropriate mounting grooves and connecting parts according to the needs, which is not limited in the embodiment of the present application.

[0120] Referring to FIG. 11, in some embodiments, a gap 2228 is reserved between the rotating shaft 2227 and the passage wall of the second end 132; the vane 2229 is capable of at least closing part of the gap 2228.

[0121] In the actual application, the gap 2228 can be formed by removing part of the material on the side plate. For example, in one possible implementation, the second end 132 is formed by splicing four side plates. Before splicing the four side plates, one of the side plates can be selected and cut to have a length smaller than that of the other three side plates. Then the four side plates are spliced, and the cut part of the one side plate on the second end 132 after splicing forms the gap 2228. In another possible implementation, the second end 132 is integrally formed by injection molding or the like. When the second end 132 is integrally formed, the length of one side of the second end 132 can be controlled to be shorter than that of the other sides, so as to form the gap 2228.

[0122] It can be understood that the reserved gap 2228 can provide a clearance for the vane 2229, and when the rotating shaft 2227 drives the vane 2229 to rotate, it can be ensured that the vane 2229 passes through smoothly. The size of the gap 2228 needs to be reasonably designed according to the vane 2229. If the gap 2228 is too large, the gap 2228 will become a large leakage point, causing too much water flow to leak from the gap 2228, thereby reducing the water flow of the drainage passage 130. According to the fluid continuity theorem, this will cause the kinetic energy of the water flow in the drainage passage 130 to decrease, thereby reducing the adsorption capacity of the object accumulated in the recess 1121, causing small objects such as sand and gravel to be difficult to be sucked out, and affecting the recovery performance of the pool cleaning system 1.

[0123] In the embodiments of the present application, the vane 2229 is arranged to at least close part of the gap 2228 reserved between the rotating shaft 2227 and the passage wall of the second end 132. For example, when the vane 2229 is arranged to extend along the axis of the rotating shaft 2227 in a straight line direction, the vane 2229 completely closes the gap 2228, or when the vane 2229 is arranged to extend along the axis of the rotating shaft 2227 in a spiral direction, the vane 2229 partially closes the gap 2228. In this way, the vane 2229 can intermittently completely close the gap 2228 or partially close the gap 2228 during rotation, thereby avoiding too much water flow from leaking out of the gap 2228, effectively ensuring the adsorption capacity of the drainage passage 130, and enabling small objects such as sand and gravel to be sucked out.

[0124] Referring to FIG. 11, in some embodiments, the end of the rotating shaft 2227 is sleeved with a sponge pad 22271.

[0125] The sponge pad 22271 can be made of polyurethane, latex, memory foam, etc., and is usually in the form of a sheet with a ring structure. The designer can select a sponge pad 22271 with appropriate thickness, inner diameter, outer diameter, etc. according to the specifications of the rolling member 2226, and the present application does not make specific limitations in this regard.

[0126] In the present application, the sponge pad 22271 has a certain flexibility. When the rotating shaft 2227 is installed on the passage wall of the second end 132, it can not only wrap the end of the rotating shaft 2227, but also fit with the passage wall of the second end 132 and the edge of the blade 2229, thereby effectively filling the gap between the blade 2229 and the passage wall. In this way, when the leaves and other dirt approach the rolling member 2226 with the water flow, the dirt can be prevented from being rolled into and clamped to the end of the rotating shaft 2227, ensuring the normal rotation of the rotating shaft 2227. In addition, the sponge pad 22271 also has a certain elasticity. When the rotating shaft 2227 vibrates during rotation, the sponge pad 22271 with elasticity can absorb part of the vibration energy, reduce the influence of vibration on the rotating shaft 2227 and the blade 2229, reduce the noise and vibration level, and thus improve the working stability and service life of the filter device 100.

[0127] In some embodiments, the rolling member 2226 is detachably connected with the passage wall of the second end 132. In this way, after the rolling member 2226 is used for a long time, the rolling member 2226 can be detached from the drainage passage 130, which facilitates cleaning of the rolling member 2226, and also facilitates maintenance or replacement of the rolling member 2226 when the rolling member 2226 is worn or fails.

[0128] Referring to FIGS. 11 and 13, in some embodiments, the housing 104 includes a first housing 110 and a second housing 120 connected with the first housing 110, the first housing 110 forms a recessed recess 1121; the second end 132 of the drainage passage 130 extends to the opposite side of the recess 1121 of the first housing 110, and the rolling member 2226 is arranged on the passage wall of the second end 132 close to the second housing 120.

[0129] The first shell 110 can include a side wall and a bottom wall. The side wall is arranged adjacent to the second shell 120, and the bottom wall is arranged opposite to the second shell 120. The side wall is provided with the water inlet 101. The bottom wall is formed with a recess 1121 recessed in a direction away from the second shell 120. The bottom wall is connected with the side wall. The bottom wall can include a first wall plate and a second wall plate. The first wall plate is a plurality of and arranged around the second wall plate. The second wall plate is connected with the plurality of first wall plates. An included angle between the first wall plate and the second wall plate is greater than 90° and less than 180°. In this way, the recess 1121 recessed in the direction away from the second shell 120 can be constructed on the bottom wall of the first shell 110 through the first wall plate and the second wall plate. When the underwater cleaning machine 10 returns to the base station 20 and is connected with the base station 20, the dirt can be accumulated in the recess 1121.

[0130] When the underwater cleaning machine 10 is connected with the base station 20, the dirt suction interface on the base station 20 can extend into the drainage channel 130 through the water inlet 101. Since the second end 132 of the drainage channel 130 extends to the recess 1121 of the first shell 101, when the dirt suction pump works, the dirt accumulated in the recess 1121 can be more easily sucked away through the drainage channel 130 under the suction of the dirt suction pump. Therefore, the dirt in the filter device 100 can be more completely recovered, so as to further reduce the dirt residue in the filter device 100.

[0131] In the embodiment of the present application, the rolling member 2226 is arranged on the channel wall of the second end 132 close to the second shell 120. The rolling member 2226 can stir the dirt accumulated in the recess 1121, effectively guide the dirt into the drainage channel 130, and make the dirt accumulated in the recess 1121 be smoothly recovered by the base station 20.

[0132] In a second aspect, the embodiment of the present application provides an underwater cleaning machine 10. As shown in FIGS. 1, 2, 3 and 6, the underwater cleaning machine 10 includes a machine body 300 and the filter device 100 of the first aspect. The underwater cleaning machine 10 further includes at least one interface II 311 and a machine body outlet 312. The interface II 311 is arranged on or connected with the machine body 300. The filter device 100 is arranged in the machine body 300. When the underwater cleaning machine 10 is in a cleaning mode, water flows into the machine body 300 through the interface II 311, is filtered by the filter device 100, and is discharged from the machine body outlet 312. The first shell 110 and the second shell 120 are arranged along the machine body direction and are detachably connected. The second shell 120 is provided with the first filter member 121. The water inlet 101 of the first shell 110 is in communication with the interface II 311.

[0133] The underwater cleaning machine 10 comprises a machine body 300 and the filtering device 100 of the first aspect. The machine body 300 is the main structure of the underwater cleaning machine 10, and can work underwater. The water flow is filtered in sequence through the docking interface II 311, the filtering device 100 and the machine body outlet 312, so as to collect the pollutants (mainly solid garbage) in the water into the filtering device 100. The machine body 300 can also be connected with the base station to perform garbage suction, so as to suck the pollutants out of the filtering device 100, thereby ensuring the reuse of the filtering device 100.

[0134] Referring to FIG. 1, the filtering device 100 comprises a second housing 120 and a first housing 110 arranged along the machine body direction. The machine body direction refers to the length direction of the machine body 300 of the underwater cleaning machine 10. It can be understood that the underwater cleaning machine 10 has multiple postures, such as forward and backward postures, ascending and diving postures, etc. According to the posture of the underwater cleaning machine 10, the posture of the filtering device 100 also changes synchronously.

[0135] Specifically, as shown in FIGS. 2 and 6, when the underwater cleaning machine 10 performs garbage cleaning operation in the forward and backward postures on the bottom of the pool, the length direction of the machine body 300 is consistent with the advancing direction X (forward and backward direction) of the underwater cleaning machine 10. At this time, the second housing 120 and the first housing 110 of the filtering device 100 are arranged along the horizontal advancing direction X of the underwater cleaning machine 10, and the water inlet 101 of the first housing 110 can be directed to the water bottom, thereby facilitating the collection of the pollutants on the water bottom.

[0136] As shown in FIGS. 5 and 14, when the underwater cleaning machine 10 performs height lifting in the ascending and diving postures to realize ascending, base station docking, diving and other operations, the length direction of the machine body 300 can be consistent with the lifting direction Z of the underwater cleaning machine 10, that is, the machine body 300 is turned over to reduce the water flow resistance during lifting. At this time, the posture of the filtering device 100 is synchronously turned over, and the second housing 120 and the first housing 110 are arranged along the vertical lifting direction Z of the underwater cleaning machine 10, and the water inlet 101 of the first housing 110 is no longer directed to the water bottom, thereby avoiding the leakage of the pollutants in the filtering device 100 from the water inlet 101 due to gravity.

[0137] The second shell 120 and the first shell 110 can be detachably connected in various manners such as a snap connection or a threaded connection, and the present application does not limit the connection manner. The water inlet 101 of the first shell 110 is in communication with the docking port II 311, so that external water flows into the filter device 100 through the docking port II 311 and the water inlet 101 in sequence. The accommodation space 110a of the first shell 110 is used to accommodate dirt. The second shell 120 is used to close the accommodation space 110a and filter the dirt in the accommodation space 110a through the first filter 121. The water flow can flow out of the accommodation space 110a through the first filter 121, and the dirt is blocked in the accommodation space 110a by the first filter 121. It should be noted that in the drawings, the first filter 121 is indicated by an arrow pointing to the second shell 120, indicating that the first filter 121 is installed on the water outlet 102 of the second shell 120, so that the water flow can be filtered through the first filter 121 when flowing out of the water outlet 102 of the second shell 120.

[0138] The specific working process of the underwater cleaning machine 10 is as follows: when the underwater cleaning machine 10 performs cleaning operations on the water bottom, the length direction of the machine body 300 is consistent with the advancing direction X, the water inlet 101 can be directed to the side where the water bottom is located, and the water flow enters the filter device 100 through the docking port II 311 and the water inlet 101, thereby continuously collecting dirt. When it is detected that the dirt reaches a preset volume, the underwater cleaning machine 10 starts the garbage collection function: first, adjust the posture so that the length direction of the machine body 300 is consistent with the lifting direction Z (perpendicular to the advancing direction), and then climb to the water surface. At this time, the posture of the filter device 100 changes synchronously, and the water inlet 101 is no longer directed to the water bottom, so that the filter device 100 can better store the dirt and avoid the dirt from leaking out of the water inlet 101 and returning to the water due to gravity during the climbing process. When the machine body 300 is in place, it is docked with the base station, and the base station can suck the dirt in the accommodation space 110a of the filter device 100. After the suction is completed, the underwater cleaning machine 10 again dives to the underwater in a diving posture, and repeats the garbage cleaning operation.

[0139] The underwater cleaning machine 10 of the present application uses the filter device 100 of the first aspect, and the filter device 100 in the above-mentioned embodiment is based on the same inventive concept, so that the underwater cleaning machine 10 can obtain the beneficial effects of the filter device 100 in the corresponding embodiments described above.

[0140] In addition, the filtering device 100 comprises a second shell 120 and the first shell 110 arranged along the body direction, and the second shell 120 and the first shell 110 are detachably connected. Further, the first filtering piece 121 is arranged on the second shell 120. When the first filtering piece 121 is blocked or damaged by impurities, the second shell 120 and the first shell 110 can be disassembled, so that only the second shell 120 or only the first filtering piece 121 is cleaned or replaced. Thus, it is beneficial to reduce the cleaning and maintenance cost of the filtering device 100 and the underwater cleaning machine 10. Furthermore, it is also beneficial to improve the convenience of cleaning and maintenance of the filtering device 100 and the underwater cleaning machine 10.

[0141] In addition, since the second shell 120 and the first shell 110 are detachably connected, the first filtering piece 121 of the filtering device 100 can be adjusted and optimized according to different underwater cleaning scenes and water quality conditions, thereby also being beneficial to improve the application scene and applicability of the underwater cleaning machine 10.

[0142] As shown in FIGS. 1 and 2, in some embodiments, the first shell 110 is not provided with a filtering piece. That is, the water flow inside the filtering device 100 is filtered by the first filtering piece 121, thereby being beneficial to reduce the cost of the filtering device 100, improve the flow rate of the water flow through the filtering device 100, and ensure the filtering effect.

[0143] As shown in FIG. 15, in some embodiments, the side of the first shell 110 opposite to the second shell 120 is at least partially provided with a second filtering piece 113.

[0144] In this embodiment, the side of the first shell 110 opposite to the second shell 120 is at least partially provided with a second filtering piece 113, and the water flow entering the containing space 110a can also flow out through the second filtering piece 113. In this way, when the filtering device 100 is taken out of the water, the water flow in the containing space 110a can flow out through the second filtering piece 113, avoiding that the garbage in the filtering box is taken out when the water flow is discharged through the docking port II, thereby accelerating / facilitating the quick discharge of the water in the machine when the machine is lifted out of the water. At the same time, the problem of "dead zone" caused by the inconvenience of water flow in the filtering device 100 can be improved, the probability of odor generation of the filtering device 100 can be reduced, and the convenience of cleaning and maintenance of the filtering device 100 can be further improved.

[0145] As shown in FIG. 15, in some embodiments, the side end face of the first shell 110 opposite to the second shell 120 is provided with a filter screen 1131, and the side of the filter screen 1131 away from the containing space 110a is provided with a first switch piece 1132; wherein, when the underwater cleaning machine 10 leaves the water surface, the first switch piece 1132 is in an open state (when the machine leaves the water surface, the first switch piece 1132 is in an open state when discharging water in the machine); when the underwater cleaning machine 10 is running underwater / in water / on the water surface, the first switch piece 1132 is in a closed state, and the running includes cleaning and / or garbage recycling.

[0146] In the embodiment, the first shell 110 is provided with a second filter piece 113, and the second filter piece 113 is a filter screen 1131, that is, the filter screen 1131 is in communication with the containing space 110a of the first shell 110. Further, the side of the filter screen 1131 away from the containing space 110a is also provided with a first switch piece 1132, which can control the on-off of the outlet of the filter screen 1131. That is, the water flow can selectively flow out of the filter device 100 through the filter screen 1131.

[0147] Specifically, when the underwater cleaning machine 10 leaves the water surface, the first switch piece 1132 is in an open state. At this time, the water flow in the containing space 110a can flow out through the filter screen 1131, thereby quickly discharging water in the machine when the machine is lifted out of the water surface while improving the problem of "dead zone" formed by the water flow in the filter device 100 due to the inconvenience of discharge. When the underwater cleaning machine 10 is running underwater / in water / on the water surface, the first switch piece 1132 is in a closed state. The running state of the underwater cleaning machine 10 can include a garbage cleaning state and a garbage recycling state. Taking the underwater cleaning machine 10 as the garbage cleaning state as an example, at this time, the water flow in the water flows into the containing space 110a through the water inlet 101, and then flows out of the filter device 100 only through the first filter piece 121, thereby forming a filtering channel. Thus, the reliability of garbage cleaning can be improved. Taking the underwater cleaning machine 10 as the garbage recycling state as an example, the underwater cleaning machine 10 is docked with the base station, and the dirt in the containing space 110a is sucked out of the containing space 110a by the suction of the suction pump. Since the first switch piece 1132 is closed, a larger suction force can be formed, thereby facilitating the improvement of the reliability of garbage recycling.

[0148] It should be noted that the first switch member 1132 can be a movable baffle / sealing plate (preferably a flexible plate) arranged on the surface of the first shell 110 away from the accommodation space 110a, which can automatically block the second filter member 1131 or open the second filter member 1131 according to the operating state of the underwater cleaner 10; or, the surface of the first shell 110 away from the accommodation space 110a can be provided with a pipeline in communication with the second filter member 1131, and the first switch member can be an electromagnetic valve arranged on the pipeline, which can control the opening and closing of the pipeline to automatically block the second filter member 1131 or open the second filter member 1131 according to the operating state of the underwater cleaner 10. The first switch member can be in various arrangements, which are not limited by the present application.

[0149] As shown in FIGS. 2, 5 and 6, in some embodiments, when the filter device 100 is provided with the drainage channel 130, the first shell 110 converges and extends to form a first end face at the end away from the opening, the drainage channel 130 extends into the accommodation space 110a of the first shell 110 to form a second end 132 opposite to the first end face, and a second switch member 160 is arranged at the second end 132 close to the side wall of the second shell 120. When the underwater cleaner 10 is sucking dirt, the second switch member 160 is in an open state, and when the second switch member 160 is opened, the communication area between the second end 132 and the accommodation space 110a is increased.

[0150] By changing the state of the second switch member 160, the communication area between the second end 132 and the accommodation space 110a can be controlled. When the underwater cleaner 10 is sucking dirt, the second switch member 160 is opened, and the communication area is increased, thereby facilitating the improvement of cleaning efficiency. When the underwater cleaner 10 is recycling garbage under the action of the suction pump (dirt suction pump), the second switch member 160 is closed, thereby increasing the suction force at the second end 132 and facilitating the efficient back suction recycling of garbage.

[0151] Alternatively, the second switch member 160 can be a rotating plate connected to the channel wall of the drainage channel 130, when the rotating plate is in a first position, it is in a closed state, and the communication area between the second end 132 and the accommodation space 110a is minimized or completely closed; when the rotating plate is in a second position, it is in an open state, and the communication area between the second end 132 and the accommodation space 110a is maximized. Alternatively, the second switch member 160 can also be a telescopic plate connected to the channel wall of the drainage channel 130, when the telescopic plate is in an extended state, it is in a closed state, and the communication area between the second end 132 and the accommodation space 110a is minimized or completely closed; when the telescopic plate is in a contracted state, it is in an open state, and the communication area between the second end 132 and the accommodation space 110a is maximized. The second switch member 160 can be in various arrangements, which are not limited by the present application.

[0152] As shown in FIG. 6, in some embodiments, the underwater cleaning machine 10 further comprises a driving assembly 200 arranged in the machine body 300, and the second shell 120 is closer to the driving assembly 200 than the first shell 110.

[0153] The driving assembly 200 can be a water pump, for example. Under the driving of the driving assembly 200, external water enters the filtering device 100 for filtration. Since the second shell 120 is closer to the driving assembly 200, and the first filtering element 121 is arranged on the second shell 120, the distance of the filtered water flowing to the driving assembly 200 is shortened, which can reduce the resistance along the way, thereby improving the working efficiency of the underwater cleaning machine 10 and reducing the energy consumption.

[0154] As shown in FIG. 6 and FIG. 22, in some embodiments, the underwater cleaning machine 10 further comprises a flushing device 180, and the driving assembly 200 has a first mode and a second mode. When the driving assembly 200 is in the first mode, the water in the machine body 300 is driven to flow from the docking interface II 311 to the machine body outlet 312. When the driving assembly 200 is in the second mode, the water in the machine body 300 is driven to flow from the machine body outlet 312 to the docking interface II 311. The flushing device 180 is located between the driving assembly 200 and the filtering device 100, and the flushing device 180 is provided with a plurality of water discharge holes 181 arranged towards the filtering device 100.

[0155] In the case that the driving assembly 200 is in the first mode, the driving assembly 200 can provide suction force, so that external water enters the inside of the machine body 300 through the docking interface II 311, and is discharged from the machine body outlet 312 after passing through the filtering device 100, thereby enabling the underwater cleaning machine 10 to clean the pool.

[0156] On this basis, the underwater cleaning machine 10 is further provided with the flushing device 180, which is located between the driving assembly 200 and the filtering device 100. In the case that the driving assembly 200 is in the second mode, the driving assembly 200 can provide suction force, which is in the opposite direction to the suction force in the first mode. Under the action of the suction force, external water enters the inside of the machine body 300 through the machine body outlet 312 and flows to the docking interface II 311. In the process of flowing to the docking interface II 311, the water is discharged through the water discharge holes 181 of the flushing device 180, and forms a flushing action on the filtering device 100. By using the flushing action, the garbage in the filtering device 100 can be moved towards the water inlet 101, so that, in cooperation with the suction action of the sewage pump 330, the garbage in the filtering device 100 can be cleaned more thoroughly.

[0157] Further, the driving assembly 200 can include a motor and an impeller, the impeller being connected with an output shaft of the motor, and the motor being capable of rotating the impeller. By adjusting the rotating direction of the motor, the mode switching of the driving assembly 200 can be realized. For example, when the motor rotates forward, the driving assembly 200 is in the first mode, and when the motor reverses, the driving assembly 200 is in the second mode.

[0158] As shown in FIG. 6, in some embodiments, the underwater cleaner 10 further includes a mounting 40 arranged in the body 300, the mounting 40 being located between the second shell 120 and the body outlet 312, the mounting 40 being provided with a third filter 41, the water flow entering through the second interface 311, sequentially filtered by the first filter 121 and the third filter 41, and then discharged from the body outlet 312; wherein the filtering precision of the third filter 41 is higher than that of the first filter 121.

[0159] In the embodiment, the mounting 40 with the third filter 41 is further arranged in the body 300, so that two-stage filtering of the water flow can be realized. The water flow is first subjected to primary filtering by the first filter 121 of the second shell 120, and then flows through the mounting 40, and is subjected to secondary filtering by the third filter 41 on the mounting 40. In this way, on the one hand, the filtering effect is improved. On the other hand, large-particle dirt is retained in the containing space 110a, and small-particle impurities are adsorbed / intercepted on the third filter 41, so that the cleaning / use cycle of the third filter 41 is improved.

[0160] Optionally, the first filter 121 is a filter screen, and the third filter 41 is a sponge or a high-efficiency particulate filter screen (HEPA, High Efficiency Particulate Arrestance). In this way, the cost of cleaning and maintenance of the underwater cleaner 10 is reduced.

[0161] In some embodiments, the third filter can be directly used without using a mounting, such as a sponge; in other embodiments, the sponge can also be fixed by a mounting or other components.

[0162] The embodiment of the third aspect of the application provides a pool cleaning system 1, as shown in FIG. 6, the pool cleaning system including the underwater cleaner 10 as described in the second aspect.

[0163] The pool cleaning system 1 in the embodiment of the application is based on the same inventive concept as the filtering device 100 and the underwater cleaner 10 in the above-described embodiments, and therefore, the pool cleaning system 1 can obtain the beneficial effects of the filtering device 100 and the underwater cleaner 10 in the corresponding embodiments described above.

[0164] In some embodiments, the pool cleaning system 1 further comprises a base station 20, the base station 20 having a suction docking interface 202, the at least one docking interface II 311 being in fluid communication with the holding space 110a via the inlet flow channel 105 or the drainage channel 130, and at least part of the suction docking interface 202 being in docking engagement with the at least one docking interface II 311 when the underwater cleaning machine 10 is connected to the base station 20.

[0165] In some embodiments, the pool cleaning system 1 further comprises a base station 20, the base station 20 having a suction docking interface 202, the at least one docking interface II 311 being in fluid communication with the holding space 110a via the inlet flow channel 105 or the drainage channel 130, and at least part of the suction docking interface 202 being in docking engagement with the at least one docking interface II 311 when the underwater cleaning machine 10 is connected to the base station 20.

[0166] In some embodiments, the pool cleaning system 1 further comprises a base station 20, the base station 20 having a suction docking interface 202, the at least one docking interface II 311 being in fluid communication with the holding space 110a via the inlet flow channel 105 or the drainage channel 130, and at least part of the suction docking interface 202 being in docking engagement with the at least one docking interface II 311 when the underwater cleaning machine 10 is connected to the base station 20.

[0167] In some embodiments, the base station 20 is arranged on the pool wall. That is, at least part of the base station 20 is arranged in the pool, and in this case, when the underwater cleaning machine 10 is connected to the base station 20, at least part of the underwater cleaning machine 10 is also arranged in the pool and is immersed in water. In this way, the arrangement can improve the versatility and flexibility of the arrangement of the suction pump 330, and reduce the probability of pump idling caused by poor arrangement.

[0168] As shown in FIGS. 7, 8, 16-19, in some embodiments, the underwater cleaning machine 10 further comprises a cover plate 170 arranged between the docking interface II 311 and the holding space 110a, the cover plate 170 being in a first position to close the holding space 110a and the docking interface II 311, and the cover plate 170 being in a second position to open the holding space 110a and the docking interface II 311. In the case where the underwater cleaning machine 10 is connected to the base station 20, the cover plate 170 can be in the second position.

[0169] The pool cleaning system 1 in the embodiment can make the cover plate 170 in the first position when the underwater cleaner 10 collects a large amount of garbage in the pool and goes to the base station 20, so that the cover plate 170 closes the passage between the containing space 110a and the docking interface II 311, and the garbage in the containing space 110a can be prevented from overflowing. After the underwater cleaner 10 reaches the base station 20 and is connected with the base station 20, the cover plate 170 can be made in the second position, so that the sewage suction docking interface 202 of the base station 20 communicates with the containing space 110a through the docking interface II 311, so that the base station 20 can recycle the garbage in the containing space 110a, and the automatic cleaning of the filter device 100 is realized. Therefore, the user does not need to manually clean the filter device 100 of the underwater cleaner 10, so as to reduce the burden of the user. As can be seen, the pool cleaning system 1 in the embodiment can automatically clean the garbage in the filter device 100 of the underwater cleaner 10, so as to reduce the burden of the user, and in addition, the risk of garbage overflow can be reduced during the underwater cleaner 10 goes to the base station 20, so as to improve the user experience.

[0170] Further, the cover plate 170 can be moved from the first position to the second position by at least one of the following ways:

[0171] (1) motor drive; (2) interaction generated by the connection of the sewage suction docking interface 202 and the docking interface II 311; (3) electromagnetic device drive. The electromagnetic drive device can be an electromagnet, and a magnet is arranged on the cover plate 170. By controlling the magnetization direction of the electromagnet, the magnet on the cover plate 170 can be attracted or repelled, thereby providing driving force for the movement of the cover plate 170.

[0172] In some embodiments, at least part of the sewage suction docking interface 202 is inserted into the docking interface II 311 and touches the cover plate 170 to keep the cover plate 170 in the second position when the underwater cleaner 10 is connected with the base station 20. That is, the cover plate 170 is moved from the first position to the second position by the interaction generated by the connection of the sewage suction docking interface 202 and the docking interface II 311. This way does not need to set other devices for driving the movement of the cover plate 170, which is beneficial to save cost and space.

[0173] In some embodiments, the connection between the sewage suction docking interface 202 and the docking interface II 311 is sealed connection. In this way, the sealing property of the two when connected can be ensured, and water flow can be prevented from leaking out.

[0174] In some embodiments, the cover plate 170 is moved from the second position to the first position by at least one of the following ways:

[0175] (1) elastic action provided by elastic members (e.g. springs); (2) motor drive; (3) electromagnetic device drive.

[0176] In some embodiments, as shown in FIG. 8, FIG. 18, the cover plate 170 comprises a main plate body 171 and at least one protrusion 172, the protrusion 172 is arranged on the side of the main plate body 171 close to the suction docking interface 202 when the underwater cleaning machine 10 is connected with the base station 20.

[0177] When the underwater cleaning machine 10 is connected with the base station 20, the suction docking interface 202 moves the cover plate 170 from the first position to the second position through the interaction with the protrusion 172.

[0178] That is, during the connection between the underwater cleaning machine 10 and the base station 20, the suction docking interface 202 continuously applies a pushing force to the protrusion 172, so that the protrusion 172 drives the main plate body 171 to move. Until the underwater cleaning machine 10 is connected with the base station 20, at this time, the main plate body 171 moves to the second position, and the suction docking interface 202 keeps in contact with the protrusion 172, so that the main plate body 171 is kept in the second position, and the accommodation space 110a and the docking interface Ⅱ 311 keep in the state of being in communication.

[0179] In a specific embodiment, when the cover plate 170 reaches the second position, it forms a part of the inlet flow channel 105, so that the fluid passage between the accommodation space 110a and the docking interface Ⅱ 311 keeps unobstructed.

[0180] In some embodiments, as shown in FIG. 8, FIG. 18, the cover plate 170 comprises a main plate body 171 and at least one protrusion 172, the main plate body 171 is hinged with the docking interface Ⅱ 311, the main plate body 171 is used to close or open the fluid passage between the accommodation space 110a and the docking interface Ⅱ 311, and the protrusion 172 is arranged on the side of the main plate body 171 close to the suction docking interface 202. When the underwater cleaning machine 10 is connected with the base station 20, the suction docking interface 202 triggers the protrusion 172.

[0181] During the connection between the underwater cleaning machine 10 and the base station 20, the suction docking interface 202 continuously applies a pushing force to the protrusion 172, so that the protrusion 172 drives the main plate body 171 to rotate. Until the underwater cleaning machine 10 is connected with the base station 20, at this time, the main plate body 171 rotates to the second position.

[0182] Further, as shown in FIG. 8, the main plate body 171 is an arc-shaped plate, and in the case that the underwater cleaning machine 10 is connected with the base station 20, the main plate body 171 is in contact with the wall surface of one of the flow channel walls in the inlet flow channel 105.

[0183] In this way, when the underwater cleaning machine 10 is connected to the base station 20, the inlet flow channel 105 can have a large flow area, thereby improving the efficiency of the base station 20 in recycling garbage.

[0184] In some embodiments, as shown in FIG. 18, the docking interface II 311 is provided on the machine body 300, or the docking interface II 311 is provided on the filtering device 100. When the docking interface II 311 is provided on the machine body 300, the machine body inlet of the machine body 300 forms the docking interface II 311; when the docking interface II 311 is provided on the filtering device 100, the opening of the filtering device 100 forms the docking interface II 311.

[0185] Further, the filtering device 100 is connected to the machine body 300, the water inlet 101 of the filtering device 100 is opposite to the machine body inlet of the machine body 300, and the cover plate 170 is provided at the water inlet 101 of the filtering device 100. In this way, by controlling the position of the cover plate 170, the containing space 110a and the docking interface II 311 can be communicated or the passage can be closed.

[0186] In some embodiments, as shown in FIGS. 20 and 21, when the underwater cleaning machine 10 is connected to the base station 20, the inlet flow channel 105 or the drainage channel 130 extends to the lowest part of the containing space 110a.

[0187] It can be understood that when the base station 20 recycles the garbage in the containing space 110a, the sewage in the containing space 110a needs to flow to the sewage suction docking interface 202. The garbage in the filtering device 100 will be concentrated at the lowest part of the containing space 110a. In this embodiment, when the underwater cleaning machine 10 is connected to the base station 20, the inlet flow channel 105 or the drainage channel 130 extends to the lowest part of the containing space 110a. In this way, when the garbage is recycled, the sewage in the containing space 110a can flow to the sewage suction docking interface 202 through the inlet flow channel 105 or the drainage channel 130, and the garbage can be flushed into the inlet flow channel 105 or the drainage channel 130, and then the garbage can enter the base station 20 through the sewage suction docking interface 202.

[0188] In some embodiments, the pool cleaning system 1 further comprises a water flow driving device. Under the action of the water flow driving device, the water flow can reach the sewage suction docking interface 202 from the containing space 110a. In the above process, the garbage in the containing space 110a enters the sewage suction docking interface 202 with the water flow, and is recycled by the base station 20.

[0189] In one of the embodiments, the water flow is discharged outside the pool after reaching the sewage suction docking interface 202. That is, after the water flow sends the garbage into the base station 20, the water flow can be discharged outside the pool, that is, the pool does not recycle the water.

[0190] In one embodiment, the water flow driving device comprises a pump device, which is arranged on the base station 20. When the underwater cleaning machine 10 is connected to the base station 20, the pump device can provide suction force to enable the water flow to reach the suction docking interface 202 from the containing space 110a.

[0191] Further, as shown in FIG. 16, FIG. 17 and FIG. 19, the pump device comprises at least one suction pump 330. That is, the number of the suction pump 330 can be set according to actual use requirements.

[0192] Exemplarily, the pump device comprises two suction pumps 330. On the one hand, the efficiency of garbage recycling can be improved, and on the other hand, the cost will not be significantly increased.

[0193] In one embodiment, as shown in FIG. 23, the suction pump 330 is provided with a water flow guide 331. During the process of water flow passing through the suction pump 330, the water flow guide 331 can divert the garbage, so that the garbage can more easily pass through the suction pump 330, thereby avoiding the garbage adhering to the impeller of the suction pump 330 to cause the suction pump 330 to be blocked.

[0194] In one embodiment, as shown in FIG. 16 and FIG. 17, the pool cleaning system 1 further comprises a suction pipeline 320. Under the action of the water flow driving device, the water flow can enter the suction pipeline 320 from the containing space 110a through the suction docking interface 202. The suction pipeline 320 can transport the water flow and the garbage carried by the water flow, so as to make the water flow and the garbage flow to the base station 20.

[0195] Further, the suction pipeline 320 is arranged to at least partially coincide with the central axis of the base station 20.

[0196] Further, the pump device can be arranged on the suction pipeline 320. When the underwater cleaning machine 10 is connected to the base station 20, the pump device can provide suction force when working to enable the water flow to reach the suction docking interface 202 from the containing space 110a and enter the suction pipeline 320.

[0197] In some embodiments, the water flow driving device comprises a Venturi structure. As shown in FIG. 20, exemplarily, the pool cleaning system 1 further comprises a connecting pipeline 340, which is in communication with the suction pipeline 330 and forms a Venturi structure at the communication position. The pump device is arranged on the connecting pipeline 340. Under the action of the pump device, the sewage in the containing space 110a is driven by the Venturi structure to flow out from the suction docking interface 202 and enter the suction pipeline 320.

[0198] In this embodiment, the pump device is not directly arranged on the sewage suction pipeline 320, but is arranged on the connecting pipeline 340 connected with the sewage suction pipeline 320. When the pump device works, the connection position of the connecting pipeline 340 and the sewage suction pipeline 330 forms a negative pressure, which provides suction force for the sewage suction pipeline 320, so that the water flow can enter the sewage suction pipeline 320 from the containing space 110a through the sewage suction interface 202. In this way, the sewage does not directly pass through the pump device, which can avoid the risk of blockage of the pump device caused by the accumulation of garbage carried by the sewage at the pump device.

[0199] In some embodiments, the water flow driving device includes a pump device arranged in the underwater cleaning machine 10. That is, the driving force can also be provided by the pump device built in the underwater cleaning machine 10, so that the water flow can reach the sewage suction interface 202 from the containing space 110a.

[0200] Further, the pump device can have a first mode and a second mode. When the water flow driving device is in the first mode, it drives the water flow from the outside of the machine body 110 to the containing space 110a. When the water flow driving device is in the second mode, it drives the water flow from the containing space 110a to the sewage suction interface 202.

[0201] When the underwater cleaning machine 10 is working in the pool, the water flow driving device is in the first mode, at this time, the external water can enter the filter device 100 for filtration, and the filtered water can be discharged through the machine body outlet 312 of the machine body 300. In the case where the underwater cleaning machine 10 is connected with the base station 20, the water flow driving device is in the second mode, so that the water flow can flow from the containing space 110a to the sewage suction interface 202 to carry the garbage into the sewage suction interface 202, thereby achieving the purpose of garbage recycling.

[0202] In some embodiments, as shown in FIG. 2 and FIG. 8, the base station 20 further includes a collection box 360, which includes a dirty water containing space II. Under the action of the water flow driving device, the water flow reaches the dirty water containing space II from the containing space 110a through the sewage suction interface 202. The collection box 360 is used for storing garbage, that is, the garbage carried by the water flow can be stored in the collection box 360. In order to facilitate the user to centrally process the garbage.

[0203] In one of the embodiments, the sewage suction pipeline 320 is arranged between the sewage suction interface 202 and the collection box 360. Under the action of the water flow driving device, the water flow reaches the collection box 360 from the containing space 110a through the sewage suction interface 202 and the sewage suction pipeline 320.

[0204] In one of the embodiments, as shown in FIG. 21, the collecting tank 360 comprises a tank body 361 and a receiving box 362. Under the action of the water flow driving device, the water flow reaches the tank body 361 of the collecting tank 360 from the dirt suction interface 202. The receiving box 362 is arranged in the tank body 361, and the receiving box 362 is arranged in the tank body 361 and comprises the dirty space II. The receiving box 362 can be taken out of the tank body 361.

[0205] The garbage entering the collecting tank 360 is concentrated in the dirty space II of the receiving box 362, and the receiving box 362 can be taken out of the tank body 361, so that the garbage in the dirty space II can be easily cleaned.

[0206] Further, the receiving box 362 is a receiving box and / or a receiving bag. The receiving box 362 can be taken out of the collecting tank 360 in the following ways: being pulled out or being taken out by arranging a shutter. In this way, the receiving box 362 is convenient to take out.

[0207] In some embodiments, as shown in FIG. 17 and FIG. 21, the collecting tank 360 further comprises a filtering device 350 and a water return hole 3612. The water in the dirty space II can be filtered by the filtering device 350 and then discharged from the collecting tank 360 through the water return hole 3612.

[0208] The filtering device 350 can filter the sewage entering the dirty space II, and the filtered water can be returned to the pool through the water return hole 3612 of the collecting tank 360. In this way, the collecting tank 360 can separate the solid garbage from the sewage and only collect the solid garbage, and at the same time, the collected water can be returned to the pool, so that the water resource can be reused.

[0209] Specifically, the water return hole 3612 can comprise a water return hole. The water return hole can be arranged on the tank body 361.

[0210] Further, a valve can be arranged on the filtering device 350. When the receiving box 362 is installed on the tank body 361, the valve is opened, the filtering device 350 is connected with the tank inlet 3611 of the tank body 361 and communicates with the dirt suction interface 202. When the receiving box 362 is separated from the tank body 361, the valve is closed.

[0211] In some embodiments, the filtering device 350 is detachably connected with the receiving box 362. In this way, the filtering device 350 can be easily cleaned, repaired or replaced.

[0212] In some embodiments, the pool cleaning system 1 further comprises a photovoltaic power generation device, which is used to supply power for the pool cleaning system 1. The photovoltaic power generation device can convert solar energy into electric energy for the pool cleaning system 1, so that the pool cleaning system 1 is more energy-saving and environmentally friendly.

[0213] In some embodiments, the pool cleaning system 1 further comprises a medicament storage device, and a medicament in the medicament storage device contacts at least part of the water flow in the pool cleaning system 1. The medicament can be used to sterilize the water flow, so that the water in the pool can be more clean after treatment.

[0214] In some embodiments, the installation angle of the collection tank 360 is adjustable. In this way, the collection tank 360 can better adapt to different installation environments and can be more stably installed in different installation environments.

[0215] It can be understood that, in the case that the docking interface II 311 is arranged on the fuselage 300, the docking interface II 311 can be used as the fuselage inlet at the same time, i.e., the docking interface II 311 and the fuselage inlet are the same structure.

[0216] In one of the embodiments, the shape of the drain hole 181 is conical. In this way, the flow rate of the water flow sprayed by the drain hole 181 can be improved, thereby facilitating the improvement of the flushing effect on the filter device 100.

[0217] In one of the embodiments, as shown in FIG. 17, the pool cleaning system 1 further comprises a sealing member 400, which is arranged around the suction docking interface 202 and is fixed to the base station 20. When the underwater cleaning machine 10 is connected with the base station 20, the sealing member 400 is compressed between the base station 20 and the fuselage 300. In this way, the sealed docking between the suction docking interface 202 and the docking interface II 311 is achieved.

[0218] In some embodiments, the pool cleaning system 1 further comprises the base station 20 and the suction pump 330, the base station 20 is provided with a first water channel (not shown in the figure) and a second water channel (not shown in the figure), the first water channel has a first docking interface, and the second water channel has a second docking interface, the underwater cleaning machine 10 comprises a first docking interface II (not shown in the figure) and a second docking interface II (not shown in the figure), the first docking interface II and the second docking interface II are both in communication with the filter device 100, the first docking interface is in communication with the first docking interface II, and the second docking interface is in communication with the second docking interface II, and the suction pump 330 is arranged in the first water channel; under the action of the suction pump 330, the water flow passes through the first water channel through the first docking interface, enters the filter device 100 from the first docking interface II, and then passes through the second docking interface II and enters the second water channel from the second docking interface.

[0219] The embodiment provides a connection mode of the pool cleaning system 1 to realize the self-cleaning function of the filtering device 100. In the embodiment, the base station 20 is provided with a first water channel and a second water channel, a first connecting port of the first water channel is communicated with the first connecting port II, and a second connecting port of the second water channel is communicated with the second connecting port II. At this time, under the action of the sewage pump 330, the fluid directions in the first water channel and the second water channel are opposite. The specific principle of the self-cleaning function of the filtering device 100 is as follows: the sewage pump 330 drives the water flow in the pool to enter the first water channel, then the water flow enters the filtering device 100 from the first connecting port and the first connecting port II, the filter screen of the filtering device 100 is washed, the sewage after washing enters the second water channel from the second connecting port II and the second connecting port, and is discharged from the second water channel, for example, the sewage can be directly discharged into the pool or collected in the collecting box 360 through the sewage pipeline 320. Therefore, the self-cleaning function of the filtering device 100 can be realized, thereby on one hand, the service life of the filtering device 100 and the pool cleaning effect are improved, and on the other hand, the intelligence and automation of the pool cleaning system 1 are improved, and the user experience is improved.

[0220] Other configurations and operations of the underwater cleaning machine 10 according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0221] In the drawings of the embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0222] The above are only the preferred embodiments of the present application, and are not used to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A filter device, characterized in that The filter device comprises: a housing, the housing comprising a first housing and a second housing connected with the first housing, the first housing having a containing space, and the second housing covering an opening of the containing space; wherein, the first housing extends convergently from an end close to the second housing to an end away from the second housing.

2. The filter device of claim 1, wherein, The first housing convergently extends to form a first end face at the end of the first housing away from the opening, and the area of the first end face is smaller than the area of the opening.

3. The filter device of claim 2, wherein, The first end face is arranged substantially opposite to the center position of the second housing.

4. The filter device of claim 2, wherein, The first housing comprises a side wall and a bottom wall connected with the side wall, the side wall is arranged adjacent to the second housing, the bottom wall is arranged opposite to the second housing, and the side wall is provided with a water inlet; wherein, the bottom wall is formed with a recess recessed in the direction away from the second housing, and the first end face is formed in the recess.

5. The filter device of claim 4, wherein, The bottom wall comprises a first wall plate and a second wall plate, the first wall plate is a plurality of and arranged around the second wall plate, the second wall plate is connected with a plurality of the first wall plate, and one side of the second wall plate facing the opening constitutes the first end face; The included angle between the first wall plate and the second wall plate is greater than or equal to 90° and less than 180°.

6. The filter device of claim 1, wherein, The second housing has a plate structure.

7. The filter device of claim 1, wherein, The first housing comprises a side wall and a bottom wall connected with the side wall, the side wall is arranged adjacent to the second housing, the bottom wall is arranged opposite to the second housing, and the bottom wall comprises a first wall plate and a second wall plate connected with each other, the first wall plate is a plurality of and arranged around the second wall plate, and at least one of the first wall plate is a trapezoidal structure.

8. The filter device according to claim 5 or 7, characterized in that The included angle between the first wall plate and the second wall plate is greater than or equal to 120° and less than or equal to 160°.

9. The filter device of claim 1, wherein, The filter device further comprises a drainage channel, the drainage channel is connected with the first housing, and the drainage channel communicates with the containing space; The first housing comprises a side wall and a bottom wall connected with the side wall, the side wall is provided with a water inlet, a first end of the drainage channel is located in the water inlet, and a second end of the drainage channel extends to substantially opposite to the convergently extended end of the first housing.

10. The filter device of claim 9, wherein, The first housing convergently extends to form a first end face at the end of the first housing away from the opening, and the area of the first end face is smaller than the area of the opening. The second end of the drainage channel extends to the first end face and is opposite to the first end face.

11. The filter device of claim 10, wherein, The difference between the opening area of the second end of the drainage channel and the area of the first end face is less than or equal to 20% of the area of the first end face; Preferably, the difference between the opening area of the second end of the drainage channel and the area of the first end face is less than or equal to 10% of the area of the first end face.

12. The filter device of claim 9, wherein, The drainage channel has at least an arc segment.

13. The filter device of claim 12, wherein, The drainage channel comprises a first section and a second section connected with the first section, the second section is located on the side of the first section away from the water inlet, the first section is configured as a straight section, and the second section is configured as an arc segment.

14. The filter device of claim 9, wherein, The drainage channel is detachably connected with the first housing.

15. The filter device of claim 9, wherein, The second end of the drainage channel is provided with a water passing gap between the second end and the containing space of the shell.

16. The filter device of claim 9, wherein, The filter device further comprises a guide member, which is located inside the shell and arranged on the side of the drainage channel close to the second shell.

17. The filter device of claim 16, wherein, The first end of the guide member is close to the side wall, and the second end of the guide member is close to the second end of the drainage channel. When the bottom wall of the shell is arranged downward, the second end of the guide member is lower than the first end of the guide member.

18. The filter device of claim 16, wherein, The guide member is detachably connected with the drainage channel.

19. The filter device of claim 15, wherein, The second end of the drainage channel is provided with a movable plate, which is movably connected with the channel wall of the drainage channel, and the flow area of the water passing gap can be changed by changing the angle of the movable plate.

20. The filter device of any one of claims 1 to 19, wherein, The filter device further comprises a filter assembly arranged in the second shell.

21. The filter device of any one of claims 1 to 19, wherein, The filter device further comprises a handle fixedly connected with the first shell.

22. The filter device of claim 1, wherein, The filter device has a water inlet, and an inlet flow channel is formed in the filter device and communicates with the water inlet. The inlet flow channel has a first flow channel wall and a second flow channel wall oppositely arranged along a first direction, the first flow channel wall comprises a first section, the wall surface of the first section is an inwardly concave arc surface, the first section is oppositely arranged with the water inlet along a second direction, the first direction is perpendicular to the normal direction of the plane where the water inlet is located, and the second direction is parallel to the normal direction of the plane where the water inlet is located.

23. The filter device of claim 22, wherein, The first flow channel wall further comprises a second section, the second section is located at one end of the first section away from the water inlet, and the second section is connected with the first section. The wall surface of the second section is an outwardly convex arc surface.

24. The filter device of claim 22, wherein, The inner wall surface of the first shell forms the second flow channel wall, and the wall surface of the second flow channel wall is an inwardly concave arc surface. When the underwater cleaning machine is connected with the base station, the second flow channel wall is lower than the water inlet.

25. The filter device of claim 9 or 22, wherein, The containing space has a slope, so that the garbage is deposited by gravity to the channel mouth of the drainage channel or the inlet flow channel.

26. The filter device of claim 9 or 22, wherein, The end of the drainage channel or the inlet flow channel close to the lowest part of the containing space has a horn-like structure.

27. The filter device of claim 1, wherein, The shell has a water inlet communicating with the containing space. The filter device further comprises a drainage channel and a rolling member, at least part of the drainage channel is arranged in the containing space, the drainage channel has a first end and a second end, the first end is connected to the water inlet, the rolling member is arranged on the channel wall of the second end in a rotating connection manner, and the rolling member has a poking part capable of poking the dirt in the containing space.

28. The filter device of claim 27, wherein, The rolling member comprises: a rotating shaft, both ends of the rotating shaft are rotatably connected with the channel wall of the second end; and a plurality of blades, the plurality of blades are arranged on the outer peripheral wall of the rotating shaft around the rotating shaft, and the plurality of blades constitute the poking part.

29. The filter device of claim 28, wherein, The blades extend along the axis of the rotating shaft in a straight line direction. Alternatively, the blades extend along the axis of the rotating shaft in a spiral direction.

30. The filter device of claim 28, wherein, The end of the blade away from the rotating shaft is provided with a protruding part or a recessed part. And / or, the blade at least partially adopts an elastic member. And / or, the number of the blades is odd; And / or, the blades are provided with through holes.

31. The filter device of claim 28, wherein, One of the outer peripheral wall of the rotating shaft and the blades is provided with a mounting groove, and the other is provided with a connecting part which is connected to the mounting groove by insertion.

32. The filter device of claim 28, wherein, A gap is reserved between the rotating shaft and the passage wall of the second end. The blades can at least close part of the gap.

33. The filter device of claim 28, wherein, The end of the rotating shaft is sleeved with a sponge pad.

34. The filter device of claim 28, wherein, The rolling member is detachably connected to the passage wall of the second end.

35. The filter device of any one of claims 27 to 34, wherein, The first shell forms a concave recess, the second end of the drainage passage extends to the opposite side of the recess of the first shell, and the rolling member is arranged on the second end close to the passage wall of the second shell.

36. An underwater cleaning machine characterized by, The underwater cleaning machine further comprises at least one docking port II and a machine body outlet, and the docking port II is arranged on or connected to the machine body. When the underwater cleaning machine is in a cleaning mode, water flows into the machine body through the docking port II, is filtered by the filter device, and is discharged from the machine body outlet. The first shell and the second shell are arranged along the machine body and are detachably connected, the second shell is provided with a first filter member, and the water inlet of the first shell is in communication with the docking port II.

37. The underwater cleaner of claim 36, wherein, The first shell is not provided with a filter member, or at least part of the side of the first shell opposite to the second shell is provided with a second filter member.

38. The underwater cleaner of claim 36, wherein, The side end face of the side of the first shell opposite to the second shell is provided with a filter screen, and the side of the filter screen away from the containing space is provided with a first switch member. When the underwater cleaning machine leaves the water surface, the first switch member is in an open state; when the underwater cleaning machine operates underwater / in water / on the water surface, the first switch member is in a closed state, and the operation includes cleaning and / or garbage recycling.

39. The underwater cleaner of claim 36, wherein, When the filter device is provided with the drainage passage, the first shell convergently extends, a first end face is formed at the end of the first shell away from the outlet, the drainage passage extends into the containing space of the first shell to form a second end opposite to the first end face; A second switch member is arranged on the side wall of the second end close to the second shell, and the second switch member is in an open state when the underwater cleaning machine sucks dirt. When the second switch member is open, the communication area between the port and the containing space is increased.

40. The underwater cleaner of claim 36, wherein, The underwater cleaning machine further comprises a driving assembly arranged in the machine body, and the second shell is closer to the driving assembly than the first shell.

41. The underwater cleaner of claim 36, wherein, The underwater cleaning machine further comprises a mounting member arranged in the machine body, and the mounting member is located between the second shell and the machine body outlet. The mounting member is provided with a third filter member, water flows into the mounting member through the docking port II, is filtered by the first filter member and the third filter member in sequence, and is discharged from the machine body outlet; wherein, The filtering precision of the third filter member is higher than that of the first filter member.

42. The underwater cleaner of claim 41, wherein, The first filter member is a filter screen. The third filter member is a sponge or a high efficiency particulate air filter (HEPA).

43. A pool cleaning system characterized by, The underwater cleaning machine as claimed in any one of claims 36 to 42.

44. The pool cleaning system of claim 43, wherein, The pool cleaning system further comprises a base station having a suction docking interface, the docking interface II being in communication with the receiving space of the housing; At least part of the suction docking interface docks at least one of the docking interfaces II when the underwater cleaning machine is connected to the base station.

45. The pool cleaning system of claim 44, wherein, The dirt in the filtering device is collected at the converging end of the first housing when the underwater cleaning machine is connected to the base station.

46. The pool cleaning system of claim 44, wherein, The base station is disposed on a pool wall.

47. The pool cleaning system of claim 43, wherein, The pool cleaning system further comprises: a base station provided with a first water channel having a first docking interface and a second water channel having a second docking interface; and a suction pump disposed in the first water channel; The underwater cleaning machine comprises a first docking interface II and a second docking interface II, both of which are in communication with the filtering device; The first docking interface is in communication with the first docking interface II, and the second docking interface is in communication with the second body outlet; Under the action of the suction pump, water flows through the first water channel via the first docking interface, enters the filtering device from the first docking interface II, and then enters the second water channel from the second docking interface via the second docking interface II.

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