CN218529989U - Filter equipment and cleaning machines people under water - Google Patents

Abstract

The utility model provides a filtering device and an underwater cleaning robot, wherein the filtering device comprises a main body, a filtering piece and a flip cover, an accommodating cavity is arranged in the main body, the main body is provided with a sewage suction port and an opening, the sewage suction port and the opening are both communicated with the accommodating cavity and the external environment, the accommodating cavity is used for accommodating solid impurities, and after cleaning liquid enters the accommodating cavity from the sewage suction port, the cleaning liquid is discharged from the opening; the filtering piece is provided with a filtering hole and is arranged at the opening; the turnover cover is arranged at the sewage suction port and is rotationally connected with the main body. The utility model provides a filter equipment both can realize this filter equipment's filtering capability, moreover, when the soil pick-up work finishes, treat that cleaning fluid no longer promotes flip, flip resets and covers the soil pick-up mouth, can be blockked by flip when acceping the solid impurity whereabouts of intracavity, and be difficult to fall out external environment from the soil pick-up mouth, like this, when dismantling and wash filter equipment, because of the soil pick-up mouth is covered by flip and is sealed, can improve the phenomenon that the rubbish of acceping the intracavity spills from the soil pick-up mouth easily.

Description

Filter equipment and cleaning machines people under water

Technical Field

The application relates to the technical field of cleaning machines, in particular to a filtering device and an underwater cleaning robot.

Background

In recent years, the global service robot market is rapidly developed, particularly in the field of cleaning, the sweeping robot achieves good results, and underwater cleaning is less concerned than ground cleaning. With the improvement of living standard, various swimming pools and large-scale water parks are brought into operation, but water resources are very precious, so circulating water is used in the swimming pools and the water parks to maintain the normal operation of the field, and in a circulating water system, water is required to be cleaned, filtered and filtered.

The underwater cleaning robot can perform cleaning operation under the condition of not discharging pool water, so that the problem that the swimming pool is stopped due to cleaning is avoided, heavy labor for cleaning the swimming pool is reduced, and precious water resources are saved. The underwater cleaning robot comprises the following working procedures: water in the swimming pool enters the filtering device through the sewage suction port to be filtered and cleaned, and finally the purified water is discharged to the outside. At present, when the traditional filtering device of the underwater cleaning robot is detached and cleaned, garbage in the garbage bin is easy to leak from the sewage suction port, and the cleaning effect is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application embodiment mainly solved provides a filter equipment and cleaning machines people under water, can improve the current situation that the dirt in the current filter equipment rubbish storehouse spills from the soil pick-up mouth easily when dismantling cleanly.

In order to solve the technical problem, the application adopts a technical scheme that: there is provided a filter device for an underwater cleaning robot, comprising:

the cleaning device comprises a main body, a cleaning liquid inlet, a cleaning liquid outlet and a cleaning liquid outlet, wherein an accommodating cavity is formed in the main body, the main body is provided with a sewage suction port and an opening, the sewage suction port and the opening are communicated with the accommodating cavity and the external environment, the accommodating cavity is used for accommodating solid impurities, and the cleaning liquid is discharged from the opening after entering the accommodating cavity from the sewage suction port;

the filtering piece is provided with a filtering hole and is arranged at the opening; and

flip locates soil pick-up mouth department and with the main part rotates to be connected, flip can to the inboard upset of main part is in order to open the soil pick-up mouth, flip resets and covers the soil pick-up mouth.

In the filtering device of the utility model, the rotating angle range of the turning cover is 0 to 90 degrees;

the main part is equipped with the pivot, flip passes through the pivot with the main part is rotated and is connected, the pivot sets up in the one side that is close to the open-ended.

The utility model discloses an among the filter equipment, the main part is equipped with spacing portion, spacing position in flip department, spacing portion is used for the restriction flip's rotation angle.

In the filtering device of the utility model, the flip cover is provided with a first magnetic attraction piece, the main body is provided with a second magnetic attraction piece, and the first magnetic attraction piece and the second magnetic attraction piece are matched in a magnetic attraction way so that the flip cover is arranged at the dirt suction port; and/or

The filtering device further comprises an elastic piece, one end of the elastic piece is installed on the main body, the other end of the elastic piece is installed on the flip cover, and the elastic piece is used for providing elastic force to enable the flip cover to be arranged on the sewage suction port.

The utility model provides a filter device, because the rotation of soil pick-up department at the main part sets up flip, flip can overturn to the inboard of main part in order to open the soil pick-up mouth, and flip can reset and cover the soil pick-up mouth, when soil pick-up work begins, wait to clean liquid to promote flip to overturn to the inboard of main part and open the soil pick-up mouth, wait to clean liquid to flow into the accepting chamber from the soil pick-up mouth and flow out from the opening after the filtration of filtration pore, can realize the filtering capability of this filter device; when the soil pick-up work ended, treat that cleaning fluid no longer promotes flip, flip resets and covers the soil pick-up mouth, can blockked by flip when acceping the solid impurity whereabouts of intracavity, and is difficult to fall out to external environment from the soil pick-up mouth, like this, when dismantling washing filter equipment, because of the soil pick-up mouth is covered by flip and is sealed, can improve the phenomenon that the soil pick-up mouth spills easily of acceping the intracavity.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure of embodiments of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a filter device according to an embodiment of the present disclosure in an open state;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a first cross-sectional structural schematic view of a filter apparatus of an embodiment of the present application;

FIG. 4 is a second cross-sectional structural view of the filter device of the present application;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

FIG. 6 is an enlarged schematic view of section C of FIG. 4;

FIG. 7 is a schematic structural view of a filter device according to an embodiment of the present application;

FIG. 8 is a schematic view of a partial structure of a filter device according to an embodiment of the present application;

FIG. 9 is a schematic view of a first housing of the filter device of the embodiment of the present application;

FIG. 10 is a schematic structural view of a second housing in the filter device according to the embodiment of the present disclosure;

FIG. 11 is an enlarged schematic view of portion D of FIG. 10;

description of reference numerals:

10. a main body; 11. an accommodating cavity; 12. a sewage suction port; 121. a surrounding baffle part; 122. a first side; 123. a second side; 13. an opening; 14. a first housing; 141. a first clamping part; 1411. a first positioning bar; 1412. a first buckle; 14121. a first side; 14122. a second face; 15. a second housing; 151. a second clamping part; 152. a second positioning bar; 153. a second buckle; 16. a filter mounting location; 17. a first holding structure; 18. a second holding structure;

20. a filter member; 21. a filter hole 21; 22. a bottom wall; 23. a side wall; 30. a cover is turned; 31. a rotating shaft; 40. a limiting part; 50. air holes are formed; 60. turning a plate; 70. a rotating shaft; a. the direction of the water flow.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1 to 11, the present invention provides a filtering device, which can be applied to an underwater cleaning robot and can clean at least one piece of solid garbage, such as sediment, floating objects (such as fallen leaves, etc.), and settled debris (such as sand, stone, etc.), in a water body.

Referring to fig. 1, fig. 3 to fig. 4, and fig. 6 to fig. 7, in some embodiments, the filtering apparatus includes a main body 10, a filtering member 20, and a flip cover 30, a housing cavity 11 is disposed inside the main body 10, the housing cavity 11 is used for housing solid impurities, the main body 10 is provided with a dirt suction port 12 and an opening 13, the dirt suction port 12 and the opening 13 are both communicated with the housing cavity 11 and the external environment, and liquid to be cleaned can enter the housing cavity 11 from the dirt suction port 12 and then be discharged from the opening 13; the filter element 20 is provided with a filter hole 21, the filter element 20 is installed at the opening 13, the liquid to be cleaned in the housing cavity 11 is filtered by the filter hole 21 and then the cleaning liquid is discharged from the opening 13, and the solid impurities are blocked by the filter element 20 and remain in the housing cavity 11; the flip cover 30 is arranged at the dirt suction port 12 and is rotationally connected with the main body 10, so that when dirt suction work starts, a power system of the underwater cleaning robot drives liquid to be cleaned to flow, the liquid to be cleaned flows into the accommodating cavity 11 from the dirt suction port 12, the flip cover 30 is pushed to rotate towards the inner side of the main body 10 to open the dirt suction port 12, when the dirt suction work is finished, the power system stops working, water flow loses power, the flip cover 30 resets to a state of covering the dirt suction port 12, and solid impurities in the accommodating cavity 11 are prevented from falling out of the dirt suction port 12.

As can be understood, the filter device provided by the embodiment of the present application includes a main body 10, a filter element 20 and a flip cover 30, wherein the main body 10 is provided with a housing cavity 11 inside, the main body 10 is provided with a dirt suction port 12 and an opening 13, the flip cover 30 and the filter element 20 are respectively installed at the dirt suction port 12 and the opening 13, and the flip cover 30 is rotatably connected with the main body 10, so that the structure and the connection mode are simple, and the manufacturing difficulty can be reduced. When the filtering device is used, when dirt suction work is started, liquid to be cleaned pushes the turnover cover 30 to turn over towards the inner side of the main body 10 in the water flow direction a flowing from the dirt suction port 12 to the accommodating cavity 11 so as to open the dirt suction port 12, the liquid to be cleaned flows into the accommodating cavity 11 from the dirt suction port 12, is filtered by the filtering holes 21 and then flows out from the opening 13, and the filtering function of the filtering device can be realized; when the dirt suction work is finished, the liquid to be cleaned does not push the turnover cover any more, the turnover cover 30 resets and covers the dirt suction port 12, solid impurities in the accommodating cavity 11 can be blocked by the turnover cover 30 when falling, and the solid impurities are difficult to fall out of the dirt suction port 12 to the external environment, so that when the filtering device is disassembled and cleaned, the phenomenon that garbage in the accommodating cavity 11 is easy to leak out of the dirt suction port 12 can be improved because the dirt suction port 12 is covered and sealed by the turnover cover 30.

Referring to fig. 1, 4 and 6, in some embodiments, in order to make the flip cover 30 return to cover the dirt suction port 12 under the action of gravity when the dirt suction operation is finished, the rotation angle range of the flip cover 30 is set to be 0 to 90 degrees, as a further scheme, the flip cover 30 and the main body 10 can be rotatably connected through the rotation shaft 31, and the rotation shaft 31 of the flip cover 30 and the main body 10 is arranged at a side close to the opening 13, when the flip cover 30 is opened, the dirt suction port 12 and the opening 13 can be blocked, so that the liquid to be cleaned can be prevented from directly rushing from the dirt suction port 12 to the opening 13, the liquid flow to be cleaned can bypass the flip cover 30 and then be bent to flow to the opening 13, and the problem of blockage of the filter element 20 caused by the water flow driving the solid impurities to directly flow to the filter element 20 can also be improved.

Referring to fig. 4 and 6, in some embodiments, in order to improve the opening stability of the lid 30 when the dirt suction port 12 is opened and to better limit the rotation angle of the lid 30, a limiting portion 40 is disposed on the main body 10, the limiting portion 40 is located at the lid 30, and the limiting portion 40 is used to limit the rotation angle of the lid 30.

Referring to fig. 1, 3 and 4, in some embodiments, in order to improve the stability of the flip cover 30 for blocking the dirt suction port 12, a first magnetic attraction member (not shown) may be disposed on the flip cover 30, and a second magnetic attraction member (not shown) may be disposed on the main body 10, the first magnetic attraction member and the second magnetic attraction member are magnetically engaged with each other to cover the flip cover 30 on the dirt suction port 12, and both the first magnetic attraction member and the second magnetic attraction member may include a magnet, or a combination of a magnet and an iron, or other fitting combinations that can generate a magnetic force therebetween, when the flip cover 30 covers the dirt suction port 12, the first magnetic attraction member and the second magnetic attraction member are magnetically engaged with each other, so as to improve the covering stability of the flip cover 30, and prevent the occurrence of solid impurities leaking out of the dirt suction port 12 due to an accidental opening of the flip cover 30 by a reverse filter or bumping when the flip cover 30 is not in a dirt sucking operation; in addition, after the first magnetic attraction piece and the second magnetic attraction piece are arranged, when the dirt suction port 12 is to be opened, the force of the water flow for pushing the flip cover 30 away is required to be larger than the sum of the gravity and the magnetic force of the flip cover 30, but the thrust of the water flow is larger than the component force of the gravity of the flip cover 30 in the rotating direction in the process of keeping the flip cover 30 open, so that the flip cover 30 can be opened by the thrust of the water flow in the filtering device, and the manner of opening the flip cover 30 is simple.

In order to further increase the stability of the lid 30 for blocking the soil suction port 12, the filter device further includes an elastic member (not shown) having one end mounted to the main body 10 and the other end mounted to the lid 30, the elastic member being used to provide an elastic force to allow the lid 30 to cover the soil suction port 12, and exemplarily, the elastic member includes a spring or a torsion spring. In other embodiments, only the first magnetic-attracting element and the second magnetic-attracting element may be provided, or only the elastic element may be provided, both of which can improve the stability of the lid 30 for blocking the dirt suction port 12.

Referring to fig. 8 and 9, in some embodiments, the edge of the dirt suction port 12 extends toward the receiving cavity 11 to form a surrounding portion 121, and the surrounding portion 121 is used to prevent the garbage from leaking out of the dirt suction port 12 when the lid 30 is opened.

Referring to fig. 9, in some embodiments, the surrounding portion 121 has a first side 122 close to the filtering member 20 and a second side 123 far from the filtering member 20, and the height of the second side 123 is reduced so that the water flow drives the garbage to enter the receiving cavity 11 from the first side; in some embodiments, the flap 30 is hinged to the first side 122, and after the flap 30 is opened, the flow of the liquid to be cleaned enters from the second side 123 and flows out of the opening 13 around the flap 30, and the flow of the liquid to be cleaned is stable throughout the process and does not directly impact the flap 30.

Referring to fig. 1, in some embodiments, to simplify the structure, the main body 10 includes a first housing 14 and a second housing 15 that are mounted and connected to each other, and the first housing 14 and the second housing 15 together enclose to form the receiving cavity 11, in this embodiment, the opening 13 may be disposed in the second housing 15, the soil suction port 12 may be disposed in the first housing 14, and the lid 30 is rotatably mounted on the first housing 14.

Referring to fig. 8, in some embodiments, in order to facilitate installation of the filtering member 20, the main body 10 is provided with the filtering member installation position 16, and the filtering member 20 is slidably inserted into the filtering member installation position 16, when cleaning the filtering apparatus, the filtering member 20 can be removed first, then the solid waste can be poured out from the opening 13, then the filtering member 20 and the accommodating cavity 11 can be cleaned, the first housing 14 and the second housing 15 can be directly opened to clean the inside, and a user can select a cleaning mode according to actual conditions, and the filtering member installation position 16 can be an insertion groove formed in the opening 13.

Referring to fig. 3 to 5, in some embodiments, in order to balance the air pressure in the accommodating chamber 11 during drainage, the main body 10 is provided with an air vent 50, and in order to make the structure more compact, the filtering apparatus further includes a flap 60, the flap 60 is rotatably mounted at the air vent 50 of the main body 10, the flap 60 is rotatable toward the outside of the main body 10, and the flap 60 is used for covering the air vent 50 to close the air vent 50 during normal sewage suction, so that a large amount of water flow is prevented from being sucked into the air vent 50 during sewage suction, and thus the pressure and the water flow at the sewage suction port 12 are not easily dispersed, and more specifically, the air vent 50 is provided on the second housing 15.

Referring to fig. 1, in some embodiments, the first housing 14 and the second housing 15 are rotatably connected, and generally, the first housing 14 and the second housing 15 are rotatably connected by a rotating shaft 70, so that the inside of the receiving cavity 11 can be cleaned by opening the first housing 14 and the second housing 15 to open the receiving cavity 11 at the end of dirt suction.

Referring to fig. 3, in some embodiments, in order to simplify the connection structure between the first casing 14 and the second casing 15, the first casing 14 is provided with a first clamping portion 141, the second casing 15 is provided with a second clamping portion 151, and the first clamping portion 141 and the second clamping portion 151 are clamped and matched to clamp and fix the first casing 14 and the second casing 15.

Specifically, referring to fig. 1 to 3 and fig. 10 to 11, in order to make the first housing 14 and the second housing 15 not easy to be clamped off when being installed and improve the connection stability of the first housing 14 and the second housing 15, the first clamping portion 141 includes a first positioning strip 1411 having one end connected to the first housing 14, the other end of the first positioning strip 1411 is connected to a first buckle 1412, and the first buckle 1412 is clamped with the second clamping portion 151; referring to fig. 7 and 9, a second positioning strip 152 is further connected to the second housing 15, and a second buckle 153 for being clamped with the first housing 14 is disposed at the other end of the second positioning strip 152 connected to the second housing 15. It can be understood that, when the first housing 14 and the second housing 15 are assembled, the first positioning bar 1411 and the second positioning bar 152 can be positioned in an auxiliary manner to ensure that the first housing 14 and the second housing 15 are not clamped, so as to facilitate the clamping of the first buckle 1412 and the second buckle 153 with the second clamping portion 151 and the first housing 14, respectively.

Referring to fig. 1, fig. 3 and fig. 9, in some embodiments, the number of the first positioning strips 1411 and/or the first positioning strips 152 is two or more, and the first positioning strips 1411 and the first positioning strips 152 are staggered at the seam of the first casing 14 and the second casing 15, and can be positioned with each other, so that the edge of the first casing 14 is more matched with the edge of the second casing 15.

Referring to fig. 1 and fig. 2, in some embodiments, the first buckle 1412 has a first surface 14121 facing the first housing 14 and a second surface 14122 facing the second housing 15, the first surface 14121 forms an acute angle with a buckling direction of the first housing 14, the second surface 14122 forms an obtuse angle with the buckling direction of the first housing 14, the buckling direction of the first housing 14 is a direction in which the first housing 14 rotates toward the second housing 15 with the rotation axis 70 as a rotation center, and the buckling direction is tangential to the rotation axis 70 and passes through the first buckle 1412 or the second buckle 153; the second locking portion 151 has a third surface adapted to the first surface 14121.

It can be understood that when being installed, the second surface 14122 of the first buckle 1412 contacts the second shell 15 first, and the second surface 14122 of the first buckle 1412 is designed to be a slope, so that the first buckle 1412 can conveniently pass over the edge of the second shell 15 and can be clamped into the second clamping portion 151; the first surface 14121 of the first buckle 1412 is also designed to be an inclined surface, so that when the first buckle 1412 and the second buckle part 151 need to be opened, the connection part of the first buckle 1412 and the second buckle part 151 can be slightly deformed and relatively slide by applying a slight force, the difficulty of opening the first buckle 1412 and the second buckle part 151 is reduced, and the first shell 14 and the second shell 15 are also convenient to open; in addition, the first surface 14121 and the second surface 14122 both form an included angle with the buckling direction of the first housing 14, so that the first buckle 1412 can be conveniently clamped into the second clamping portion 151 and slide out of the first clamping portion 141, and the angle formed by the first surface 14121 and the first positioning strip 1411 is smaller, so that the connection between the first buckle 1412 and the second clamping portion 151 is more stable; the second catching portion 151 may be a catching groove formed on an inner wall of the first housing 14.

Referring to fig. 8, in some embodiments, the first housing 14 is provided with a first holding structure 17, the second housing 15 is provided with a second holding structure 18, and the first holding structure 17 and the second holding structure 18 are respectively used for holding the first housing 14 and the second housing 15, so that when the accommodating cavity 11 is cleaned, the first holding structure 17 and the second holding structure 18 can be respectively held to pull apart the first housing 14 and the second housing 15, which is simple and convenient.

Specifically, referring to fig. 3, 7 and 8, the first holding structure 17 or the second holding structure 18 is provided with an air hole 50 and a turning plate 60, the turning plate 60 is rotatably installed at the first holding structure 17 or the second holding structure 18, the turning plate 60 can rotate towards the outer side of the main body 10, the air hole 50 is opened after the turning plate 60 rotates, the air hole 50 is covered after the turning plate 60 is reset, and more specifically, in the present embodiment, the air hole 50 and the turning plate 60 are provided at the second holding structure 18.

Referring to fig. 7, in some embodiments, in order to increase the filtering area of the filter element 20, thereby increasing the filtering efficiency and reducing the probability of blockage by garbage, the filter element 20 includes a bottom wall 22 and at least one side wall 23 connected to the bottom wall 22, the filter element 20 may be recessed toward the receiving cavity 11 to form the bottom wall 22 and the side wall 23, and the bottom wall 22 and the side wall 23 are provided with the filtering holes 21.

Based on the filter equipment that this application embodiment provided, this application embodiment still provides an underwater cleaning robot for cleaning liquid, include: the embodiment of the application provides a filter device; and a robot main body (not shown) to which the filter device is mounted. The underwater cleaning robot provided by the embodiment of the application can realize sewage suction cleaning of sewage underwater by adopting the filtering device provided by the embodiment of the application, and can improve the phenomenon that garbage in the accommodating cavity 11 is easy to leak from the sewage suction port 12 because the sewage suction port 12 is covered and sealed by the flip cover 30 when the filtering device is cleaned.

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (18)

1. A filter arrangement for an underwater cleaning robot, comprising:

the cleaning device comprises a main body, a cleaning device and a cleaning device, wherein an accommodating cavity is arranged in the main body, a sewage suction port and an opening are formed in the main body, the sewage suction port and the opening are both communicated with the accommodating cavity and the external environment, the accommodating cavity is used for accommodating solid impurities, and after cleaning liquid enters the accommodating cavity from the sewage suction port, the cleaning liquid is discharged from the opening;

the filtering piece is provided with a filtering hole and is arranged at the opening; and

the flip locates soil pick-up mouth department and with the main part rotates to be connected, flip can to the inboard upset of main part is in order to open soil pick-up mouth, flip resets and covers soil pick-up mouth.

2. The filtering device according to claim 1, wherein the turning angle of the turning cover ranges from 0 to 90 degrees;

the main part is equipped with the pivot, flip passes through the pivot with the main part is rotated and is connected, the pivot sets up in the one side that is close to the open-ended.

3. The filtering device as claimed in claim 1, wherein the main body is provided with a position-limiting part at the folder, and the position-limiting part is used for limiting the rotation angle of the folder.

4. The filtration apparatus of claim 1,

the flip cover is provided with a first magnetic suction piece, the main body is provided with a second magnetic suction piece, and the first magnetic suction piece and the second magnetic suction piece are in magnetic suction fit so that the flip cover is arranged on the sewage suction port; and/or

The filtering device further comprises an elastic piece, one end of the elastic piece is installed on the main body, the other end of the elastic piece is installed on the flip cover, and the elastic piece is used for providing elastic force to enable the flip cover to be arranged on the sewage suction port.

5. The filter apparatus of claim 1, wherein an edge of the soil suction port extends toward the receptacle to form a barrier for preventing the escape of garbage from the soil suction port.

6. The filtration apparatus according to claim 5, wherein the containment portion has a first side proximate the filter element and a second side distal from the filter element, the first side of the containment portion having a height greater than a height of the second side of the containment portion.

7. The filter apparatus of claim 1, wherein the body comprises a first housing and a second housing that are mounted to one another, the first housing and the second housing cooperatively enclosing the housing chamber.

8. A filter device according to claim 1 or 7, wherein the body is provided with a filter mounting location in which the filter is slidably inserted.

9. The filtering device as claimed in claim 1, wherein the main body is provided with air holes, the filtering device further comprises a turning plate rotatably installed at the air holes of the main body, the turning plate is rotatable toward the outside of the main body, and the turning plate is used for covering the air holes.

10. The filtration apparatus of claim 7, wherein the first housing and the second housing are rotationally coupled.

11. The filtering device according to claim 7, wherein the first housing is provided with a first clamping portion, the second housing is provided with a second clamping portion, and the first clamping portion and the second clamping portion are clamped and matched to clamp and fix the first housing and the second housing.

12. The filtering device according to claim 11, wherein the first clamping portion comprises a first positioning strip having one end connected to the first housing, and a first buckle connected to the other end of the first positioning strip, the first buckle being clamped to the second clamping portion;

still be connected with second location strip on the second casing, second location strip with the other end that the second casing is connected is provided with be used for with the second buckle of first casing joint.

13. The filter device according to claim 12, wherein the number of the first and/or second positioning strips is two or more, and the first and second positioning strips are staggered at a seam of the first and second housings.

14. The filter apparatus of claim 12, wherein the first catch has a first face facing the first housing and a second face facing the second housing, the first face forming an acute angle with the first housing engagement direction and the second face forming an obtuse angle with the first housing engagement direction;

the second clamping portion is provided with a third surface matched with the first surface.

15. The filtration device of claim 7, wherein the first housing is provided with a first gripping structure and the second housing is provided with a second gripping structure, the first gripping structure and the second gripping structure for gripping the first housing and the second housing, respectively.

16. The filtering device as claimed in claim 15, wherein the first holding structure or the second holding structure is provided with an air hole and a turning plate, the turning plate is rotatably mounted at the first holding structure or the second holding structure, the turning plate can rotate towards the outer side of the main body, and the turning plate is used for covering the air hole.

17. The filter device according to any one of claims 1 to 7 or 9 to 16, wherein said filter element comprises a bottom wall and at least one side wall connected to said bottom wall, said bottom wall and said side wall each being provided with said filter openings.

18. An underwater cleaning robot for cleaning a liquid, comprising:

a filter device as claimed in any one of claims 1 to 17; and

a robot main body to which the filter device is mounted.

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