Pollution discharging and filtering assembly, cleaning box and cleaning machine

Abstract

The invention discloses a pollution discharge filter assembly, a cleaning box and a cleaning machine, the pollution discharge filter assembly comprises a filter screen, the filter screen comprises a first filter part and a second filter part surrounding the first filter part, the first filter part and the second filter part define a filter space, the first filter part is provided with an inner surface facing the filter space, and the second filter part is provided with an outer surface facing the filter space. And the first filtering part is provided with at least one precipitation tank which is concave relative to the inner surface. According to the scheme, the precipitation tank is formed in the first filtering part, in the sewage filtering process, impurities flow on the first filtering part, most of the impurities can automatically enter the precipitation tank of the first filtering part to be stored and precipitated instead of being flatly spread on the whole first filtering part, and due to the fact that the precipitation tank can store many impurities, the impurities can be conveniently filtered, and the filtering efficiency is improved. Therefore, the condition that the first filtering part is blocked can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a sewage filter assembly, a cleaning box and a cleaning machine. Background Art

[0002] Cleaning robots can clean the ground and are suitable for various indoor and outdoor environments, such as roads, parks, hotels, stations, etc. In order to realize the automated operation of the cleaning robot, the cleaning robot is usually equipped with a workstation, which can charge the cleaning robot, add water, receive the sewage discharged by the cleaning robot and introduce the sewage into the sewer, etc.

[0003] The workstation is provided with a cleaning box, in which a filter is installed for filtering solid impurities from sewage. The bottom of the existing filter is usually a flat mesh structure, and the filter is prone to clogging. Summary of the invention

[0004] The present application aims to solve the technical problem that the existing filter screen is easily clogged and provides a sewage filter assembly, a cleaning box and a cleaning machine.

[0005] In order to solve the above technical problems, the technical solution provided by this application is:

[0006] A sewage filter assembly is used to filter sewage received by a cleaning machine, the sewage filter assembly includes a filter screen, the filter screen includes a first filter portion and a second filter portion surrounded by the first filter portion, the first filter portion and the second filter portion surround to form a filter space, the first filter portion has an inner surface facing the filter space, and the first filter portion is formed with at least one sedimentation tank that is recessed compared to the inner surface.

[0007] According to an embodiment of the present application, the second filter portion is provided with an opening communicating with the filter space.

[0008] According to one embodiment of the present application, at least one of the sedimentation tanks and the opening are respectively located at opposite ends of the filter screen.

[0009] According to one embodiment of the present application, the second filter portion includes a first side portion, a second side portion and a third side portion connected in sequence, and the end of the first side portion away from the second side portion and the end of the third side portion away from the second side portion are spaced apart to form the opening, and the plane where the opening is located is parallel to the plane where the second side portion is located.

[0010] According to an embodiment of the present application, at least a portion of at least one of the first side portion, the second side portion, and the third side portion is provided with filter holes.

[0011] According to one embodiment of the present application, the first filter portion includes a first section, a second section and a third section connected in sequence, the first section is located between the second section and the opening, and the space enclosed by the second section, the third section and the second filter portion forms the sedimentation tank; the plane where the first section is located is inclined toward the third section relative to the plane where the opening is located.

[0012] According to one embodiment of the present application, the first filter portion is provided with filter holes, and the center lines of at least some of the filter holes in the first section of the first filter portion are arranged at an angle relative to the plane where the opening is located, and the first filter portion has an outer surface arranged opposite to the inner surface, and one end of the inclined filter hole connected to the outer surface is located on the side of the end of the filter hole connected to the inner surface away from the plane where the opening is located.

[0013] According to one embodiment of the present application, the center lines of at least part of the filter holes on the second side portion are inclined relative to the plane where the opening is located, and the end of the inclined filter hole facing away from the opening is located on the side of the filter hole facing the opening away from the first filter portion.

[0014] According to one embodiment of the present application, the sewage filter assembly also includes a mounting frame connected to the filter screen, the mounting frame is located at the opening of the filter screen, the mounting frame includes a mounting plate, the mounting plate is parallel to the plane where the opening is located, and the mounting plate is provided with a through hole aligned with the opening.

[0015] According to one embodiment of the present application, the mounting frame also includes a connecting plate connected to the mounting plate, the connecting plate and the mounting plate surround the through hole, the connecting plate and the second filter portion are spaced apart, and the connecting plate is located on a side of the second filter portion away from the first filter portion.

[0016] According to one embodiment of the present application, the connecting plate is arranged perpendicular to the mounting plate.

[0017] A cleaning box comprises the above-mentioned sewage filter assembly.

[0018] A cleaning box comprises the above-mentioned sewage filter assembly, the cleaning box also comprises a box body, the wall of the box body comprises a mounting portion for mounting the sewage filter assembly, the mounting portion is provided with a mounting hole for connecting to the inside of the box body, and the mounting portion comprises fixing plates located on both sides of the mounting hole, the plane where the fixing plate is located coincides with the plane where the mounting hole is located, and the fixing plate is used to, when the filter is located on the inside of the box body, fit the mounting plate surface through the side of the fixing plate facing the outside of the box body and connect the mounting plate through fasteners.

[0019] A cleaning machine comprises the above-mentioned cleaning box.

[0020] The beneficial effects of this application are:

[0021] The bottom of the existing filter is a horizontal mesh structure, and the bottom mesh of the filter is the main filtering area. In the process of filtering sewage, impurities in the sewage will flow on the bottom mesh of the filter and spread out, so the impurities will cover the entire bottom mesh of the filter, causing the filter to be blocked. The first filter part of the filter of the present application is not a flat mesh structure, but a sedimentation tank is formed on the first filter part. In the process of filtering sewage, impurities flow on the first filter part, and most of the impurities will automatically enter the sedimentation tank of the first filter part for storage and precipitation, rather than being spread out on the entire first filter part. Since the sedimentation tank can store more impurities, the blockage of the first filter part can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0023] Figure 1 is an exemplary stereogram of a cleaning robot and a workstation provided by the present application;

[0024] Figure 2 yes Figure 1 Side view of

[0025] Figure 3 yes Figure 1 A stereogram of the workstation in the middle;

[0026] Figure 4 yes Figure 3 The breakdown structure diagram of the workstation in the

[0027] Figure 5 yes Figure 4 A perspective view of the cleaning box;

[0028] Figure 6 yes Figure 5 Exploded structure diagram of the cleaning box;

[0029] Figure 7 yes Figure 6 A three-dimensional diagram of the blowdown filter assembly;

[0030] Figure 8 yes Figure 7 A side view of a sewage filter assembly;

[0031] Fig. 9 yes Figure 7 A three-dimensional diagram of a filter screen in a sewage filter assembly;

[0032] Fig.10 yes Figure 7 A three-dimensional view of a mounting frame in a sewage filter assembly;

[0033] Figure 11(a) is Fig. 9 A schematic diagram of a top view of a first filter portion of a middle filter screen;

[0034] Figure 11(b) is Fig. 9 A schematic diagram of a top view of another structure of the first filter portion of the middle filter screen;

[0035] Fig.12 It is a schematic diagram of the rebound path of sewage when it is discharged to the filter screen;

[0036] Fig.13 yes Fig. 9 Schematic diagram of the flow direction of the medium sewage in the filter holes on the first section;

[0037] Fig.14 yes Fig. 9 Schematic diagram of the flow direction of the medium sewage in the filter holes on the second side;

[0038] Fig.15 yes Figure 5 A vertical cross-sectional view of a cleaning box;

[0039] Fig.16 yes Figure 5 A vertical cross-sectional view of a cleaning box without a sewage filter assembly;

[0040] Fig.17 yes Figure 5 A vertical sectional view of the installation portion in the cleaning box;

[0041] Fig.18 is a perspective view of an existing cleaning box;

[0042] Fig.19 It is a stereoscopic diagram of a sewage filter assembly in an existing cleaning box.

[0043] Description of reference numerals:

[0044] Workstation 10

[0045] Cleaning robot 20

[0046] Cleaning box 100

[0047] Sewage filter assembly 110

[0048] Filter 111

[0049] Inner surface 11110

[0050] First filter unit 1111

[0051] Sedimentation tank 11111

[0052] Filter space 11112

[0053] Second filter unit 1112

[0054] The first paragraph 1113

[0055] Second paragraph 1114

[0056] Section 3 1115

[0057] First side portion 1116

[0058] Second side portion 1117

[0059] The third side portion 1118

[0060] Opening 1119

[0061] Mounting frame 112

[0062] Mounting plate 1121

[0063] Through hole 1122

[0064] Perforation 1123

[0065] Connecting plate 1124

[0066] Box 120

[0067] Mounting section 121

[0068] Installation tube 1211

[0069] Mounting hole 1212

[0070] Fixed plate 1213

[0071] Positioning tube 1214

[0072] Fastener 130

[0073] Housing 200

[0074] Charging module 300

[0075] Water adding module 400 DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0077] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0078] The present application provides a sewage filter assembly, which is mainly used in a cleaning machine and is used to filter solid impurities from sewage received by the cleaning machine. The cleaning machine can be any sewage treatment equipment that needs to filter solid impurities from sewage, such as a workstation for filtering impurities from sewage generated in daily life, which is usually used in conjunction with a cleaning robot.

[0079] Combine the following Figure 1 and Figure 2 A general description of the working principle of the cleaning robot and the workstation is given. Figure 1 is an exemplary perspective view of a cleaning robot and a workstation, Figure 2 The figure is a side view of a cleaning robot and a workstation. The cleaning robot 20 is an intelligent mopping robot or a sweeping and mopping robot, which can clean the floor and is suitable for various indoor and outdoor environments, such as roads, parks, hotels, stations, etc. In order to realize the automated operation of the cleaning robot 20, the cleaning robot 20 is usually equipped with a workstation 10, which can charge the cleaning robot 20, add water, receive sewage discharged by the cleaning robot 20 and introduce the sewage into the sewer, etc.

[0080] Combination Figure 3 and Figure 4 , Figure 3 is a perspective view of the workstation 10, Figure 4It is an exploded view of the workstation 10, which mainly includes a housing 200, a charging module 300 and a water adding module 400. In order to prevent sewage from directly entering the workstation 10 and affecting other components, especially the circuits, in the workstation 10, a separate cleaning box 100 is also provided in the workstation 10 for receiving and treating sewage. The cleaning box 100 mainly includes a box body and a sewage filter assembly. The sewage discharged by the cleaning robot 20 enters the cleaning box 100 after filtering solid impurities through the sewage filter assembly, and the sewage in the cleaning box 100 is discharged to the outside of the cleaning box 100 through the submersible pump in the cleaning box 100.

[0081] The present application mainly improves the sewage filter assembly of the cleaning box 100 , and the sewage filter assembly of the present application is specifically described below using an exemplary embodiment.

[0082] See also Figures 5 to 10 The sewage filter assembly 110 includes a filter screen 111, and the filter screen 111 includes a first filter portion 1111 and a second filter portion 1112 surrounded by the first filter portion 1111. The first filter portion 1111 and the second filter portion 1112 surround a filter space 11112. The first filter portion 1111 has an inner surface 11110 facing the filter space 11112, and the first filter portion 1111 is formed with at least one sedimentation tank 11111 that is recessed compared to the above-mentioned inner surface 11110.

[0083] In the related art, Fig.18 and Fig.19 The structure of an existing cleaning box 100' and a sewage filter assembly 110' therein is shown. The sewage filter assembly 110' includes a filter screen 111'. The filter screen 111' includes a first filter portion 1111' and a second filter portion 1112' connected to the first filter portion 1111'. The first filter portion 1111' and the second filter portion 1112' are arranged at an angle relative to each other.

[0084] It can be seen that the bottom of the existing filter 111', i.e., the first filter part 1111', is a horizontal mesh structure, and when sewage is discharged into the filter 111', it is mainly discharged to the first filter part 1111'. Therefore, the first filter part 1111' is the main filtering area. In the process of filtering sewage, impurities in the sewage will flow on the first filter part 1111' and spread out, so the impurities will cover the entire first filter part 1111' of the filter 111'. When the solid impurities on the first filter part 1111' form a certain thickness (and a small thickness), the solid impurities form a dense layer, and it is difficult for the liquid in the sewage to pass through the solid impurity layer, so it will cause the filter 111' to be blocked, and the filter 111' needs to be taken out frequently to clean the solid impurities.

[0085] However, the first filter portion 1111 of the filter screen 111 of the sewage filter assembly 110 of the present application is not a flat mesh structure, but a recessed area, namely a sedimentation tank 11111, is formed on the first filter portion 1111. In the process of filtering sewage, impurities flow on the first filter portion 1111, and most of the impurities will automatically enter the sedimentation tank 11111 of the first filter portion 1111 for storage and precipitation, rather than being spread on the entire first filter portion 1111. Since the sedimentation tank 11111 has a certain depth, the sedimentation tank 11111 can store more impurities, thereby reducing the blockage of the first filter portion 1111.

[0086] In some embodiments, the second filter part 1112 is provided with an opening 1119 connected to the filter space 11112. The opening 1119 serves as an inlet for the sewage discharge pipe of the cleaning robot 20, so that the cleaning robot 20 approaches the workstation 10 from the side of the workstation 10 and extends the sewage discharge pipe of the cleaning robot 20 through the opening 1119 into the filter space 11112, and discharges the sewage to the first filter part 1111 of the filter screen 111 for filtering solid impurities. In other embodiments, the sewage can also be discharged from the top of the filter screen 111 or other positions.

[0087] The number of sedimentation tanks 11111 can be one, two or more, all of which can precipitate and store impurities. Preferably, one sedimentation tank 11111 is used.

[0088] The shape of the sedimentation tank 11111 can also be any shape, and the preferred shape of the sedimentation tank 11111 will be described in detail later.

[0089] The position of the sedimentation tank 11111 on the first filter part 1111 can also be arbitrary, but considering that the sewage is discharged from the opening 1119 side to the first filter part 1111, the flow direction of the sewage on the first filter part 1111 is mostly from the opening 1119 to the opposite side of the opening 1119, so the solid impurities will also be more deposited on the opposite side of the opening 1119. Based on this, the present application preferably sets the sedimentation tank 11111 and the opening 1119 at the opposite ends of the filter screen 111, so that the impurities in the sewage discharged to the first filter part 1111 will automatically enter the sedimentation tank 11111 for precipitation along the flow direction of the sewage.

[0090] In some embodiments, the second filter portion 1112 includes a first side portion 1116, a second side portion 1117, and a third side portion 1118 connected in sequence, and the end of the first side portion 1116 away from the second side portion 1117 and the end of the third side portion 1118 away from the second side portion 1117 are spaced apart to form the above-mentioned opening 1119. In this embodiment, the second filter portion 1112 is composed of three side panels, and of course in other embodiments it is not limited to the structure of three side panels.

[0091] The plane where the opening 1119 is located is parallel to the plane where the second side portion 1117 is located, and the planes where the first side portion 1116 and the third side portion 1118 are located are perpendicular to the plane where the opening 1119 is located. With such a structure, the filter 111 can be easily inserted and installed from the installation hole 1212 on the side wall of the box body 120 of the cleaning box 100.

[0092] At least a portion of at least one of the first side portion 1116 , the second side portion 1117 and the third side portion 1118 is provided with filter holes. Preferably, the first side portion 1116 , the second side portion 1117 and the third side portion 1118 are all covered with filter holes to increase the filtering performance of the filter screen 111 .

[0093] The first side portion 1116 , the second side portion 1117 and the third side portion 1118 preferably adopt a flat mesh structure, but in other embodiments they are not limited to the flat mesh structure.

[0094] In some embodiments, the first filter section 1111 includes a first section 1113, a second section 1114, and a third section 1115 connected in this order, the first section 1113 is located between the second section 1114 and the opening 1119, and the space enclosed by the second section 1114, the third section 1115, and the second filter section 1112 forms a sedimentation tank 11111. In this way, the first filter section 1111 forms a stepped structure, and the sedimentation tank 11111 can cover the entire width of the sewage flow in the filter screen 111, ensuring that the impurities in the sewage enter the sedimentation tank 11111 to the maximum extent, that is, the deposition of impurities on the first section 1113 is minimized.

[0095] It should be understood that the inner surface 11110 mentioned above in the present application is not only the physical plane of the first section 1113 facing the filter space 11112, but should be the physical surface of the other parts of the first filter part 1111 excluding the sedimentation tank 11111 facing the filter space 11112. For example, when the sedimentation tank 11111 is arranged in the middle of the first filter part 1111, the other parts of the first filter part 1111 excluding the sedimentation tank 11111 are the parts around the sedimentation tank 11111. Figures 11(a) and 11(b) show top views of the sedimentation tank 11111 at different positions of the first filter part 1111, and the shaded parts in the figures are the inner surface 11110 mentioned above.

[0096] The inner surface 11110 can be not only a regular plane, but also a curved surface with a certain slight curvature.

[0097] Considering that most of the sewage discharged from the sewage pipe of the cleaning robot 20 flows on the first section 1113, and the direction of the sewage flow is from the opening 1119 to the opposite side of the opening 1119, in order to facilitate the flow of sewage on the first section 1113, the plane where the first section 1113 of the present application is located is inclined relative to the plane where the opening 1119 is located toward the third section 1115. After the filter 111 is installed on the cleaning box 100, the first section 1113 of the filter 111 is at an inclined angle to the horizontal plane, that is, the first section 1113 forms a slope, and the sewage discharged to the first section 1113 automatically flows to the sedimentation tank 11111 under the action of gravity, which can further reduce the precipitation of solid impurities on the first section 1113. At the same time, considering that in actual sewage filtration, it is necessary to ensure that the sewage is fully filtered when flowing on the first section 1113, and the inclination of the first section 1113 should not be too large. Of course, in other embodiments, the plane where the first section 1113 is located and the plane where the opening 1119 is located can also be vertically set.

[0098] And considering that the sewage pipe of the cleaning robot 20 is arranged at an angle, the sewage discharged from the sewage pipe also flows in an inclined direction. Fig.13 The center lines of at least some of the filter holes of the first section 1113 in the first filter part 1111 are arranged at an angle relative to the plane where the opening 1119 is located. The first filter part 1111 has an outer surface arranged opposite to the inner surface 11110, and one end of the filter hole connected to the outer surface is located at a side away from the plane where the opening 1119 is located at one end of the filter hole connected to the inner surface 11110. Therefore, the inclination of the filter hole of the first section 1113 and the inclination of the flow of sewage discharged from the sewage pipe can be set to be approximately the same angle, so that the sewage discharged from the sewage pipe can accurately pass through the filter hole of the first section 1113 arranged at an angle, and the deposition of impurities on the first section 1113 can be further reduced.

[0099] Since the water pressure and flow rate of the sewage pipe of the cleaning robot 20 are maintained in a relatively stable range when discharging sewage, setting the inclination angle of the filter holes on the first section 1113 corresponding to the flow direction of the sewage discharged from the sewage pipe of the cleaning robot 20 has practical application effects.

[0100] Further considering that the sewage has a certain speed and pressure when discharged from the sewage pipe of the cleaning robot 20, the sewage discharged to the first section 1113 of the first filter part 1111 will rebound to the second side part 1117 on the first section 1113, see Fig.12 , Fig.12 It is the route map of sewage entering the filter 111 and rebounding, combined with Fig.14, the present application further preferably sets the center line of at least part of the filter holes of the second side portion 1117 to be inclined relative to the plane where the opening 1119 is located, and the end of the inclined filter hole facing away from the opening 1119 is located on the side of the end of the filter hole facing the opening 1119 away from the first filter portion 1111. Therefore, the inclination of the inclined filter holes of the second side portion 1117 and the inclination of the sewage rebound can be set to be approximately the same angle, so that the rebounded sewage can accurately pass through the inclined filter holes on the second side portion 1117, so as to reduce the deposition of impurities on the second side portion 1117.

[0101] In addition, in order to facilitate the installation of the filter screen 111 on the cleaning box 100, the sewage filter assembly 110 of the present application also includes a mounting frame 112 connected to the filter screen 111. Figures 7 to 10 The mounting frame 112 is located at the opening 1119 of the filter screen 111. The mounting frame 112 includes a mounting plate 1121, which is parallel to the plane where the opening 1119 is located, and the mounting plate 1121 is provided with a through hole 1122 aligned with the opening 1119. The through hole 1122 is preferably substantially the same in shape and size as the opening 1119 to reduce the shielding of the opening 1119 by the mounting frame 112.

[0102] The mounting plate 1121 is roughly in the form of a U-shaped frame. In order to increase the overall rigidity of the mounting frame 112, the mounting frame 112 of the present application also includes a connecting plate 1124 connected to the mounting frame 112. The connecting plate 1124 and the mounting plate 1121 surround the above-mentioned through hole 1122. The structure of the connecting frame will be described in detail later.

[0103] The installation and connection structure of the sewage filter assembly 110 on the cleaning box 100 will be described in detail below in conjunction with the structure of the cleaning box 100 .

[0104] See also Figure 5 and Figure 6 The cleaning box 100 also includes a box body 120, the wall of the box body 120 includes a mounting portion 121 for mounting the sewage filter assembly 110, the mounting portion 121 protrudes from the outer surface of the box body 120, and the mounting portion 121 is roughly a rectangular cylindrical structure to match the rectangular shape of the opening 1119.

[0105] The mounting portion 121 includes a rectangular mounting tube 1211, which is combined with Figure 6 as well as Fig.16 and Fig.17 A mounting hole 1212 for connecting to the interior of the box body 120 is opened on the inner side of the mounting tube 1211. The mounting portion 121 also includes fixing plates 1213 located on both sides of the mounting hole 1212. The fixing plates 1213 are fixed to the inner wall of the mounting tube 1211, and the plane where the fixing plates 1213 are located coincides with the plane where the mounting hole 1212 is located.

[0106] The mounting hole 1212 is used for the filter screen 111 to extend into the box body 120, and the fixing plate 1213 is used to fit with the surface of the mounting plate 1121 and connect the mounting plate 1121 through the fastener 130. When the filter screen 111 extends into the box body 120 through the mounting hole 1212, the side of the fixing plate 1213 facing the outside of the box body 120 fits with the side of the mounting plate 1121 facing the filter screen 111.

[0107] To facilitate the connection between the fixing plate 1213 and the mounting plate 1121, a positioning tube 1214 with an internal thread is fixed to the side of the fixing plate 1213 facing the inner side of the box body 120. At the same time, corresponding through holes 1123 are also provided on the fixing plate 1213 and the mounting plate 1121. By fasteners 130, such as bolts, passing through the through holes 1123 on the fixing plate 1213 and the mounting plate 1121 and then screwed into the internal threads of the positioning tube 1214, the connection and fixation between the mounting plate 1121 and the fixing plate 1213 and the positioning tube 1214 can be achieved.

[0108] Since the fastener 130 is installed from the outside of the installation portion 121 , that is, from the side of the fixing plate 1213 toward the outside of the box body 120 , the assembly and disassembly of the fastener 130 is greatly facilitated.

[0109] See also Fig.15 , Fig.15 It is a cross-sectional view of the sewage filter assembly 110 installed in the cleaning box 100. It can be seen that a step is formed between the box body 120 of the cleaning box 100 and the installation tube 1211, which matches the shape of the bending structure formed by connecting the first section 1113 and the second section 1114.

[0110] See again Figure 7 and Fig.10, the connecting plate 1124 is spaced apart from the second filter part 1112, and the connecting plate 1124 is located on the side of the second filter part 1112 away from the first filter part 1111. The two ends of the connecting plate 1124 are respectively connected to one end of the mounting plate 1121 away from the second filter part 1112 to increase the overall rigidity of the mounting frame 112. The reason why the connecting plate 1124 adopts the above structure is that when the filter screen 111 is installed, the filter screen 111 needs to extend into the box body 120 through the mounting hole 1212. Since the mounting hole 1212 is a vertical hole, when the filter screen 111 is installed, the second filter part 1112 needs to remain in a vertical state through the mounting hole 1212, so the connecting plate 1124 is higher than the second filter part 1112. The height of the mounting hole 1212 is limited. To ensure that the overall height of the filter screen 111 is large enough (to ensure the filtering and impurity precipitation effect of the filter screen 111) and that the filter screen 111 can pass through the mounting hole 1212, the overall height of the filter screen 111, that is, the height of the second side portion 1117, must be close to the height of the mounting hole 1212 (the height of the second side portion 1117 is slightly less than the height of the mounting hole 1212). At the same time, to avoid the connection plate 1124 blocking the mounting hole 1212 and causing the height of the mounting hole 1212 to decrease, the connection plate 1124 must be raised so that the height of the through hole 1122 formed by the connection plate 1124 and the mounting plate 1121 is approximately the same as the height of the mounting hole 1212.

[0111] Furthermore, the plane where the connecting plate 1124 is located is set at an angle relative to the plane where the mounting portion 121 is located, and is preferably set vertically. The reason why the connecting plate 1124 adopts the above structure is that: since the through hole 1122 is formed by surrounding the connecting plate 1124 and the mounting plate 1121, the connecting plate 1124 and the mounting plate 1121 need to be installed on the inner side of the mounting cylinder 1211, and the height of the inner wall of the mounting cylinder 1211 is limited. Therefore, the height of the inner wall of the mounting cylinder 1211 limits the overall height of the mounting frame 112. Setting the connecting plate 1124 to be perpendicular to the mounting plate 1121 can reduce the overall height of the mounting frame 112, while ensuring that the height of the through hole 1122 is large enough to facilitate the sewage pipe of the cleaning robot 20 to be able to smoothly extend into the through hole 1122.

[0112] Based on the structure of the above-mentioned sewage filter assembly 110, the installation process of the sewage filter assembly 110 of the present application is as follows: the third section 1115 of the filter screen 111 first passes through the installation hole 1212, and when the mounting plate 1121 is close to the outer end surface of the mounting cylinder 1211, the connecting plate 1124 is located above the mounting hole 1212, and at this time, the sedimentation tank 11111 of the filter screen 111 has passed the mounting cylinder 1211 to reach the interior of the box body 120, and then the sewage filter assembly 110 is moved downward as a whole, and the sewage filter assembly 110 is continued to be pushed inward so that the mounting plate 1121 is attached to the fixing plate 1213. At this time, the sewage filter assembly 110 reaches the installation position, and then the mounting frame 112 is slightly moved up, down, left and right, so that the mounting plate 1121 is aligned with the through-hole 1123 on the fixing plate 1213, and then the fastener 130 is passed through the through-hole 1123 to connect and tighten the mounting plate 1121 and the fixing plate 1213.

[0113] The terms "first", "second", "third" in this application are only used for descriptive purposes and cannot be understood as indicating the quantity of the indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of these features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "include" and "have" and any of their variations are intended to cover non-exclusive inclusions. The process, method, system, product or equipment such as including a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0114] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A sewage filter assembly, characterized in that: Used to filter sewage received by a cleaning machine, the sewage filter assembly includes a filter screen, the filter screen includes a first filter part and a second filter part surrounded by the first filter part, the first filter part and the second filter part surround to form a filter space, the first filter part has an inner surface facing the filter space, and the first filter part is formed with at least one sedimentation tank recessed compared to the inner surface.

2. The sewage filter assembly according to claim 1, characterized in that: The second filter portion is provided with an opening communicating with the filter space.

3. The sewage filter assembly according to claim 2, characterized in that: At least one of the sedimentation tanks and the opening is located at two opposite ends of the filter screen.

4. The sewage filter assembly according to claim 2, characterized in that: The second filter portion includes a first side portion, a second side portion and a third side portion connected in sequence, the end of the first side portion away from the second side portion and the end of the third side portion away from the second side portion are spaced apart to form the opening, and the plane where the opening is located is parallel to the plane where the second side portion is located.

5. The sewage filter assembly according to claim 4, characterized in that: At least a portion of at least one of the first side portion, the second side portion, and the third side portion is provided with filter holes.

6. The sewage filter assembly according to claim 2, characterized in that: The first filter portion includes a first section, a second section and a third section connected in sequence, the first section is located between the second section and the opening, and the space surrounded by the second section, the third section and the second filter portion forms the sedimentation tank; The plane where the first section is located is inclined toward the third section relative to the plane where the opening is located.

7. The sewage filter assembly according to claim 1 or 6, characterized in that: The first filter portion is provided with filter holes, and the center lines of at least some of the filter holes in the first section of the first filter portion are arranged at an angle relative to the plane where the opening is located. The first filter portion has an outer surface arranged opposite to the inner surface, and one end of the inclined filter hole connected to the outer surface is located on the side of the end of the filter hole connected to the inner surface away from the plane where the opening is located.

8. The sewage filter assembly according to claim 5, characterized in that: The center lines of at least some of the filter holes on the second side are inclined relative to the plane where the opening is located, and the ends of the inclined filter holes facing away from the opening are located on the side of the end of the filter holes facing the opening away from the first filter portion.

9. The sewage filter assembly according to claim 2, characterized in that: The sewage filter assembly also includes a mounting frame connected to the filter screen, the mounting frame is located at the opening of the filter screen, the mounting frame includes a mounting plate, the mounting plate is parallel to the plane where the opening is located, and the mounting plate is provided with a through hole aligned with the opening.

10. The sewage filter assembly according to claim 9, characterized in that: The mounting frame further includes a connecting plate connected to the mounting plate, the connecting plate and the mounting plate surround the through hole, the connecting plate is spaced apart from the second filter portion, and the connecting plate is located on a side of the second filter portion away from the first filter portion.

11. The sewage filter assembly according to claim 10, characterized in that: The connecting plate is arranged perpendicular to the mounting plate.

12. A cleaning box, characterized in that: It comprises a sewage filter assembly as described in any one of claims 1-8.

13. A cleaning box, characterized in that: It includes a sewage filter assembly as described in any one of claims 9 to 11, the cleaning box also includes a box body, the wall of the box body includes a mounting portion for mounting the sewage filter assembly, the mounting portion is provided with a mounting hole for connecting to the inside of the box body, and the mounting portion includes fixing plates located on both sides of the mounting hole, the plane where the fixing plate is located coincides with the plane where the mounting hole is located, and the fixing plate is used to, when the filter is located on the inside of the box body, fit the mounting plate surface through the side of the fixing plate facing the outside of the box body and connect the mounting plate through fasteners.

14. A cleaning machine, characterized in that: Comprising a cleaning box as claimed in claim 12 or 13.

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