Residue collecting mechanism, filtering device, and cleaning device

Abstract

The present application provides a residue collecting mechanism, a filtering device, and a cleaning device. The residue collecting mechanism is used in the filtering device. The filtering device comprises a filtering mechanism and the residue collecting mechanism. The residue collecting mechanism comprises: a first housing assembly, having a residue collecting cavity as well as a residue collecting port, a first backflow port, and a residue discharging port which are separately communicated with the residue collecting cavity; and a first filtering member, arranged in the residue collecting cavity and located between the residue discharging port and the first backflow port. The residue collecting port is used for being communicated with a filtering cavity of the filtering mechanism, so as to collect a residue mixture, which is discharged from the filtering cavity, to the residue collecting cavity. The first backflow port is used for discharging filtered liquid obtained after the residue mixture is filtered by the first filtering member. The residue discharging port is used for at least discharging residue in the residue mixture. The residue collecting cavity is used for being arranged on one side of the filtering mechanism. The residue collecting cavity and the filtering mechanism are arranged in a preset direction. In this way, the residue-water separation effect and reliability can be improved.

Description

Slag collecting mechanism, filtering device and cleaning device

[0001] The present application claims priority to the Chinese patent application No. 2024104613766, filed on April 16, 2024, and entitled "Slag collecting mechanism, filtering device and cleaning device", which is incorporated by reference in its entirety.

TECHNICAL FIELD

[0002] The present application relates to the technical field of filtering devices, in particular to a slag collecting mechanism, a filtering device and a cleaning device.

BACKGROUND

[0003] The cleaning device such as a dishwasher filters the residue in the cleaned cleaning liquid during the cleaning process by using a filter screen to filter out the residue in the liquid to be filtered.

[0004] In the related art, the filtered filtering material is usually discharged through a slag discharge port, but the filtered filtering material usually contains not only residue but also a large amount of reusable liquid, the slag-water separation effect is poor, the volume of waste is too large, and energy is wasted, or the material classification effect is poor.

SUMMARY

[0005] The present application provides a slag collecting mechanism, a filtering device and a cleaning device to improve the slag-water separation effect and reliability.

[0006] To solve the above technical problems, one technical solution adopted by the present application is to provide a slag collecting mechanism. The slag collecting mechanism is used in a filtering device, the filtering device includes a filtering mechanism and a slag collecting mechanism, and the slag collecting mechanism includes: a first shell assembly provided with a slag collecting cavity, a slag collecting port, a first backflow port and a slag discharge port respectively communicating with the slag collecting cavity; a first filter element arranged in the slag collecting cavity and located between the slag discharge port and the first backflow port; wherein the slag collecting port is used to communicate with the filtering cavity of the filtering mechanism to collect the residue mixture discharged from the filtering cavity to the slag collecting cavity, the first backflow port is used to discharge the filtered liquid after the residue mixture is filtered by the first filter element, and the slag discharge port is used to discharge at least the residue in the residue mixture; the slag collecting cavity is arranged on one side of the filtering mechanism, and the slag collecting cavity and the filtering mechanism are arranged along a predetermined direction.

[0007] Wherein, the first backflow port and the slag collecting port respectively communicate with the opposite ends of the filtering cavity.

[0008] Wherein, the first shell assembly further forms a liquid collecting cavity, and the first shell assembly is further provided with a liquid discharge port and a liquid collecting port communicating with the liquid collecting cavity; wherein the liquid discharge port is used to communicate with the filtering cavity, and the liquid collecting port is used to collect the liquid to be filtered.

[0009] The slag collecting mechanism further comprises a first pumping assembly arranged at the slag discharge port and configured to discharge the slag in the slag collecting cavity from the slag discharge port.

[0010] The slag collecting mechanism further comprises a second filter arranged in the liquid collecting cavity, wherein the filter pore size of the third filter is greater than the filter pore size of the first filter.

[0011] The slag collecting cavity is provided with two slag discharge ports, and the two slag discharge ports are arranged at intervals along the direction of gravity.

[0012] The bottom wall of the slag collecting cavity is provided with a slag collecting groove in communication with the lower slag discharge port.

[0013] The first shell assembly is further provided with a first exhaust port in communication with the liquid collecting cavity.

[0014] The first shell assembly comprises a first shell and a second shell, the first shell surrounds to form the liquid collecting cavity, the second shell surrounds the first shell, and the second shell and the first shell form the slag collecting cavity.

[0015] The first shell assembly further comprises a first liquid collecting disc arranged on the second shell and the second shell and provided with a liquid inlet in communication with the liquid collecting cavity.

[0016] The first shell assembly comprises a first shell and a second shell, the first shell forms the liquid collecting cavity, the second shell forms the slag collecting cavity, and the first shell and the second shell are respectively located on opposite sides of the filter mechanism.

[0017] The slag collecting mechanism comprises an annular filter arranged in the slag collecting cavity, the annular filter divides the slag collecting cavity into a first chamber located outside the annular filter and a second chamber located inside the annular filter, the second chamber is in communication with the slag discharge port, and the first chamber is further in communication with the filter cavity.

[0018] The first shell assembly further comprises a second liquid collecting disc arranged on the first shell and provided with a liquid inlet in communication with the liquid collecting cavity.

[0019] To solve the above technical problems, one technical scheme adopted by the present application is to provide a filter device, comprising: a filter mechanism provided with a filter cavity; and the slag collecting mechanism.

[0020] The filtering mechanism comprises a second housing assembly provided with the filtering cavity and a third filtering piece arranged in the filtering cavity, the third filtering piece divides the filtering cavity into a third chamber and a fourth chamber, the third chamber is located outside the fourth chamber, the second housing assembly is further provided with a first inlet and a first outlet in communication with the third chamber, and the second housing assembly is further provided with a second inlet and a second outlet in communication with the fourth chamber; the first inlet is used for inputting the liquid to be filtered, the second inlet is used for inputting the flushing fluid, the second outlet is used for outputting at least part of the filtered liquid, and the first outlet is used for outputting at least the residue in the liquid to be filtered; and the residue collecting port is in communication with the first outlet.

[0021] The first housing assembly is further formed with a liquid collecting cavity, and the first housing assembly is further provided with a liquid discharging port and a liquid collecting port in communication with the liquid collecting cavity; the liquid discharging port is in communication with the first inlet, and the liquid collecting port is used for inputting the liquid to be filtered.

[0022] The filtering device further comprises a flow dividing mechanism in communication with the second inlet, the flow dividing mechanism is used for guiding the filtered liquid output from the second outlet to the second inlet and above the liquid collecting cavity, so as to use part of the filtered liquid as the flushing fluid and use another part of the filtered liquid as the cleaning liquid to clean the object to be cleaned located above the liquid collecting cavity, and the liquid to be filtered after cleaning the object to be cleaned is collected by the liquid collecting cavity to the first inlet.

[0023] The residue collecting mechanism further comprises a second filtering piece arranged in the liquid collecting cavity; the filtering pore diameter of the second filtering piece is greater than the filtering pore diameter of the third filtering piece; and the filtering pore diameter of the third filtering piece is greater than the filtering pore diameter of the first filtering piece.

[0024] The filtering device further comprises a second pumping assembly, which provides pumping pressure for the fourth chamber to form negative pressure in the fourth chamber, so that the liquid to be filtered flows from the third chamber to the fourth chamber.

[0025] The first backflow port is in communication with the pumping path of the second pumping assembly to the second outlet.

[0026] The second pumping assembly is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet is communicated with the second outlet; the filtering device further comprises a shunt mechanism communicated with the first liquid outlet and the second inlet respectively, and the shunt mechanism is used for guiding the filtered liquid output from the second outlet and the first return port of the second pumping assembly to the second inlet and the upper side of the liquid collecting cavity, so that part of the filtered liquid is used as the flushing fluid and another part of the filtered liquid is used as the cleaning liquid to clean the object to be cleaned located on the upper side of the liquid collecting cavity, and the filtered liquid after cleaning the object to be cleaned is collected to the first inlet through the liquid collecting cavity.

[0027] The filtering mechanism and the slag collecting mechanism are arranged along a first direction, the second pumping assembly and the filtering mechanism are arranged along a second direction perpendicular to the first direction, and the second pumping assembly is inclined to the liquid collecting cavity, and the shunt mechanism is arranged between the first shell and the second pumping assembly; the first direction is parallel to the arrangement direction of the third chamber and the fourth chamber.

[0028] The filtering mechanism and the slag collecting mechanism are arranged along a first direction, the second pumping assembly and the filtering mechanism are arranged along a second direction perpendicular to the first direction; the first direction is parallel to the arrangement direction of the third chamber and the fourth chamber.

[0029] To solve the above technical problems, one technical scheme adopted by the present application is to provide a cleaning device, comprising: a device body formed with a cleaning cavity; and the filtering device mounted on the device body and used for filtering the filtered liquid generated by the cleaning cavity.

[0030] The slag collecting mechanism comprises a first shell assembly and a first filter element, the first shell assembly is provided with a slag collecting cavity, a slag collecting port communicated with the slag collecting cavity, a first return port and a slag discharging port, the first filter element is arranged in the slag collecting cavity and located between the slag discharging port and the first return port, the slag collecting port is used for being communicated with the filtering cavity of the filtering mechanism, the residue mixture discharged from the filtering cavity can be collected to the slag collecting cavity, efficient slag collecting is realized, and residue accumulation in the filtering cavity is reduced; the first filter element can be used for re-filtering the residue mixture collected to the slag collecting cavity, the residue mixture can be re-separated into residue and water, the residue is discharged to the slag collecting cavity through the slag discharging port, and the filtered liquid in the residue mixture is recovered through the first return port, the slag water separation effect of the slag collecting mechanism and the filtering effect of the filtering device are improved. Further, the slag collecting cavity is arranged on one side of the filtering mechanism and arranged along a preset direction, the interference between the slag collecting cavity and the filtering cavity is reduced, the arrangement of various ports communicated with the slag collecting cavity is facilitated, and the reliability of the slag collecting mechanism, the filtering device and the cleaning device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings, in which:

[0032] Fig. 1 is a sectional view of a backflushing mechanism in a filtering device according to the present application;

[0033] Fig. 2 is a structural schematic view of an embodiment of the filtering device according to the present application;

[0034] Fig. 3 is an exploded structural schematic view of the filtering device according to the embodiment of Fig. 2;

[0035] Fig. 4 is a sectional view of the filtering device according to the embodiment of Fig. 2;

[0036] Fig. 5 is a top view of the filtering device according to the embodiment of Fig. 2;

[0037] Fig. 6 is a bottom view of the filtering device according to the embodiment of Fig. 2;

[0038] Fig. 7 is a structural schematic view of a part of the filtering device according to the embodiment of Fig. 2;

[0039] Fig. 8 is an enlarged structural schematic view of structure A according to the embodiment of Fig. 7;

[0040] Fig. 9 is a structural schematic view of a filtering mechanism in the filtering device according to the embodiment of Fig. 2;

[0041] Fig. 10 is a structural schematic view of a slag collecting mechanism in the filtering device according to the embodiment of Fig. 2;

[0042] Fig. 11 is a structural schematic view of the other side of the slag collecting mechanism according to the embodiment of Fig. 10;

[0043] Fig. 12 is a structural schematic view of another embodiment of the filtering device according to the present application;

[0044] Fig. 13 is an exploded structural schematic view of the filtering device according to the embodiment of Fig. 12;

[0045] Fig. 14 is a sectional view of the filtering device according to the embodiment of Fig. 12;

[0046] Fig. 15 is another sectional view of the filtering device according to the embodiment of Fig. 12;

[0047] Fig. 16 is a bottom view of the filtering device according to the embodiment of Fig. 12;

[0048] Fig. 17 is a structural schematic view of a backflushing mechanism, a first housing and a ring-shaped filtering element in the filtering device according to the embodiment of Fig. 12;

[0049] Fig. 18 is a structural schematic view of the first shell, the fourth shell and the second collecting tray in the filtering device of the embodiment of Fig. 12;

[0050] Fig. 19 is a structural schematic view of another embodiment of the filtering device of the present application;

[0051] Fig. 20 is an exploded structural schematic view of the filtering device of the embodiment of Fig. 19;

[0052] Fig. 21 is a sectional view of the filtering device of the embodiment of Fig. 19.

DETAILED DESCRIPTION

[0053] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0054] 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 herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0055] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two and more than two, unless otherwise explicitly and specifically limited.

[0056] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0058] In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of 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, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0060] The present application first proposes a filtering device, as shown in Figures 1 to 11, Figure 1 is a cross-sectional view of the backflushing mechanism in the filtering device of the present application; Figure 2 is a structural schematic diagram of an embodiment of the filtering device of the present application; Figure 3 is an exploded structural schematic diagram of the filtering device of the embodiment of Figure 2; Figure 4 is a cross-sectional view of the filtering device of the embodiment of Figure 2; Figure 5 is a top view of the filtering device of the embodiment of Figure 2; Figure 6 is a bottom view of the filtering device of the embodiment of Figure 2; Figure 7 is a structural schematic diagram of part of the structure of the filtering device of the embodiment of Figure 2; Figure 8 is an enlarged structural schematic diagram of structure A in the embodiment of Figure 7; Figure 9 is a structural schematic diagram of the filtering mechanism in the filtering device of the embodiment of Figure 2; Figure 10 is a structural schematic diagram of the slag collecting mechanism in the filtering device of the embodiment of Figure 2; and Figure 11 is a structural schematic diagram of the other side of the slag collecting mechanism in the embodiment of Figure 10.

[0061] As shown in FIGS. 2-4, 7, 10 and 11, the filtering device of the embodiment comprises a filtering mechanism 10 and a slag collecting mechanism 20; the filtering mechanism 10 is provided with a filtering cavity 1; the slag collecting mechanism 20 comprises a first shell assembly 22 and a first filtering piece 24; the first shell assembly 22 is provided with a slag collecting cavity 21, a slag collecting port D3, a first backflow port E2 and a slag discharging port E1 which are respectively communicated with the slag collecting cavity 21; the first filtering piece 24 is arranged in the slag collecting cavity 21 and located between the slag discharging port E1 and the first backflow port E2; wherein the slag collecting port D3 is communicated with the filtering cavity 1 to collect the residue mixture discharged from the filtering cavity 1 to the slag collecting cavity 21, the first backflow port E2 is used to discharge the filtered liquid filtered by the first filtering piece 24 from the residue mixture, and the slag discharging port E1 is used to discharge at least the residue from the residue mixture; the slag collecting cavity 21 is arranged on one side of the filtering mechanism 10, and the slag collecting cavity 21 and the filtering mechanism 10 are arranged along a predetermined direction.

[0062] The slag collecting mechanism 20 comprises the first shell assembly 22 and the first filtering piece 24; the first shell assembly 22 is provided with the slag collecting cavity 21 and the slag collecting port D3, the first backflow port E2 and the slag discharging port E1 which are communicated with the slag collecting cavity 21; the first filtering piece 24 is arranged in the slag collecting cavity 21 and located between the slag discharging port E1 and the first backflow port E2; and the slag collecting port D3 is communicated with the filtering cavity 1 of the filtering mechanism 10 to collect the residue mixture discharged from the filtering cavity 1 to the slag collecting cavity 21, so as to realize efficient slag collecting and reduce the accumulation of residue in the filtering cavity 1; and the first filtering piece 24 can be used to filter the residue mixture collected to the slag collecting cavity 21 again, so as to separate the residue mixture again, discharge the residue to the slag collecting cavity 21 through the slag discharging port E1, and recover the filtered liquid in the residue mixture through the first backflow port E2, thereby improving the slag-water separation effect of the slag collecting mechanism 20 and the filtering effect of the filtering device. Further, the slag collecting cavity 21 is arranged on one side of the filtering mechanism 10 and arranged along a predetermined direction, so as to reduce the interference between the slag collecting cavity 21 and the filtering cavity 1, facilitate the arrangement of each port communicated with the slag collecting cavity 21, and improve the reliability of the slag collecting mechanism 20, the filtering device and the cleaning device.

[0063] Wherein, the slag collecting cavity 21 and the filtering mechanism 10 are arranged along a predetermined direction, which means that they are arranged along a certain predetermined direction, such as left-right direction.

[0064] Optionally, the first backflow port E2 and the slag collecting port D3 are respectively communicated with opposite ends of the filtering cavity 1, that is, the first backflow port E2 and the slag collecting port D3 are respectively communicated with the filtering cavity 1 and located at opposite ends of the filtering cavity 1, which can prolong the length of the slag collecting cavity 21 and form a cyclone channel, so that the residue mixture is cyclone collected in the slag collecting cavity 21, and this structure can also reduce the influence of the backflow fluid on the discharge of the residue mixture to the slag collecting cavity 21 after slag collecting, thereby improving the slag collecting effect.

[0065] Optionally, the first filter member 24 can be a filter screen.

[0066] Optionally, as shown in FIG. 1, FIG. 4, FIG. 7, FIG. 8 and FIG. 9, the filter mechanism 10 comprises a second housing assembly 11 provided with a filter cavity 1 and a third filter member 12 arranged in the filter cavity 1, the third filter member 12 divides the filter cavity 1 into a third chamber 13 and a fourth chamber 14, the third chamber 13 is located outside the fourth chamber 14, and the second housing assembly 11 is further provided with a first inlet A1 and a first outlet B1 which are in communication with the third chamber 13, and the second housing assembly 11 is further provided with a second inlet A2 and a second outlet B2 which are in communication with the fourth chamber 14; wherein the first inlet A1 is used for inputting the liquid to be filtered, the second inlet A2 is used for inputting the flushing fluid, the second outlet B2 is used for outputting at least part of the filtered liquid, and the first outlet B1 is used for outputting at least the residue in the liquid to be filtered; the third filter member 12 is used for filtering the liquid to be filtered inputted from the first inlet A1, and the flushing fluid inputted from the second inlet A2 is used for flushing the third filter member 12; wherein the residue collecting port D3 is in communication with the first outlet B1.

[0067] Optionally, as shown in FIG. 1, FIG. 4, FIG. 7, FIG. 8 and FIG. 9, the filter mechanism 10 comprises a second housing assembly 11 provided with a filter cavity 1 and a third filter member 12 arranged in the filter cavity 1, the third filter member 12 divides the filter cavity 1 into a third chamber 13 and a fourth chamber 14, the third chamber 13 is located outside the fourth chamber 14, and the second housing assembly 11 is further provided with a first inlet A1 and a first outlet B1 which are in communication with the third chamber 13, and the second housing assembly 11 is further provided with a second inlet A2 and a second outlet B2 which are in communication with the fourth chamber 14; wherein the first inlet A1 is used for inputting the liquid to be filtered, the second inlet A2 is used for inputting the flushing fluid, the second outlet B2 is used for outputting at least part of the filtered liquid, and the first outlet B1 is used for outputting at least the residue in the liquid to be filtered; the third filter member 12 is used for filtering the liquid to be filtered inputted from the first inlet A1, and the flushing fluid inputted from the second inlet A2 is used for flushing the third filter member 12; wherein the residue collecting port D3 is in communication with the first outlet B1.

[0068] Optionally, as shown in FIG. 1, FIG. 4, FIG. 7, FIG. 8 and FIG. 9, the filter mechanism 10 comprises a second housing assembly 11 provided with a filter cavity 1 and a third filter member 12 arranged in the filter cavity 1, the third filter member 12 divides the filter cavity 1 into a third chamber 13 and a fourth chamber 14, the third chamber 13 is located outside the fourth chamber 14, and the second housing assembly 11 is further provided with a first inlet A1 and a first outlet B1 which are in communication with the third chamber 13, and the second housing assembly 11 is further provided with a second inlet A2 and a second outlet B2 which are in communication with the fourth chamber 14; wherein the first inlet A1 is used for inputting the liquid to be filtered, the second inlet A2 is used for inputting the flushing fluid, the second outlet B2 is used for outputting at least part of the filtered liquid, and the first outlet B1 is used for outputting at least the residue in the liquid to be filtered; the third filter member 12 is used for filtering the liquid to be filtered inputted from the first inlet A1, and the flushing fluid inputted from the second inlet A2 is used for flushing the third filter member 12; wherein the residue collecting port D3 is in communication with the first outlet B1.

[0069] Optionally, as shown in FIG. 1, FIG. 4, FIG. 7, FIG. 8 and FIG. 9, the filter mechanism 10 comprises a second housing assembly 11 provided with a filter cavity 1 and a third filter member 12 arranged in the filter cavity 1, the third filter member 12 divides the filter cavity 1 into a third chamber 13 and a fourth chamber 14, the third chamber 13 is located outside the fourth chamber 14, and the second housing assembly 11 is further provided with a first inlet A1 and a first outlet B1 which are in communication with the third chamber 13, and the second housing assembly 11 is further provided with a second inlet A2 and a second outlet B2 which are in communication with the fourth chamber 14; wherein the first inlet A1 is used for inputting the liquid to be filtered, the second inlet A2 is used for inputting the flushing fluid, the second outlet B2 is used for outputting at least part of the filtered liquid, and the first outlet B1 is used for outputting at least the residue in the liquid to be filtered; the third filter member 12 is used for filtering the liquid to be filtered inputted from the first inlet A1, and the flushing fluid inputted from the second inlet A2 is used for flushing the third filter member 12; wherein the residue collecting port D3 is in communication with the first outlet B1.

[0070] The slag collecting port D3 is communicated with the first outlet B1 to collect the slag discharged from the third chamber 13. The slag collecting cavity 21 and the slag collecting port D3 can collect the slag discharged from the third chamber 13, can improve the problem of slag accumulation in the third chamber 13, and can improve the filtering efficiency and filtering effect.

[0071] Optionally, the backwashing of the third filter 12 by the flushing fluid and the filtering of the third filter 12 to the liquid to be filtered can be performed synchronously or asynchronously.

[0072] The embodiment can also control the transmission of the flushing fluid to the second inlet A2 by the on-off valve.

[0073] The third filter 12 divides the filtering cavity 1 into the third chamber 13 and the fourth chamber 14 on both sides of the third filter 12, and at least part of the liquid to be filtered flows from the third chamber 13 to the fourth chamber 14, so that the filtering of the liquid to be filtered can be realized by the third filter 12; and the flushing fluid is input into the fourth chamber 14, so that the slag accumulated on the side of the third filter 12 close to the third chamber 13 falls off and is discharged from the first outlet B1 to the slag collecting cavity 21 along the third chamber 13; further, the third chamber 13 is arranged outside the fourth chamber 14, so that the first outlet B1 which is communicated with the third chamber 13 and is used at least for outputting the slag is located on the outer circumferential side of the entire filtering cavity 1, thereby facilitating the communication between the first outlet B1 and the slag collecting cavity 21, facilitating the effective discharge of the slag, reducing the risk of secondary pollution caused by the residual slag in the third chamber 13, thereby improving the filtering effect, optimizing the layout of the backwashing slag discharge structure of the filtering device, and simplifying the structure of the filtering device, thereby improving the reliability of the filtering device.

[0074] Optionally, as shown in FIGS. 4, 5 and 6, the filtering device of the embodiment further comprises a shunt mechanism 60 communicated with the second inlet A2, the shunt mechanism 60 is used for shunting part of the cleaning liquid as the flushing fluid, and shunting another part of the cleaning liquid to the object to be cleaned to clean the object to be cleaned, and collecting the liquid to be filtered after cleaning the object to be cleaned to the first inlet A1.

[0075] The shunt mechanism 60 can realize the shunting of the cleaning liquid used for cleaning the object to be cleaned and the cleaning liquid as the flushing fluid, so that the two shunt branches share the same source, and the synchronization of the filtering and the backwashing can be realized, thereby improving the filtering efficiency and filtering effect.

[0076] Optionally, the third filter 12 can be a filter screen.

[0077] Optionally, as shown in FIG. 1, FIG. 4, FIG. 7 and FIG. 8, the filtering mechanism 10 of the embodiment further comprises a spraying member 15; the spraying member 15 is arranged in the fourth chamber 14, and the spraying member 15 is in communication with the second inlet A2 and is used to guide the flushing fluid input from the second inlet A2 to the third filtering member 12.

[0078] The spraying flow channel of the spraying member 15 is in communication with the second inlet A2.

[0079] The embodiment can shorten the flow path between the flushing fluid outlet and the third filtering member 12, reduce the hydraulic pressure loss of the flushing fluid in the fourth chamber 14, thereby increasing the flushing pressure of the flushing fluid on the third filtering member 12, and further improving the flushing effect of the flushing fluid on the third filtering member 12.

[0080] Optionally, the spraying member 15 can be integrally arranged with or detachably arranged with the second shell assembly 11.

[0081] Optionally, as shown in FIG. 1, FIG. 4, FIG. 7 to FIG. 9, the third filtering member 12 of the embodiment comprises a cylindrical filtering member having a bottom wall, and the bottom wall of the cylindrical filtering member is connected with the second shell assembly 11; the fourth chamber 14 is located in the cylindrical filtering member, and the third chamber 13 is located outside the cylindrical filtering member.

[0082] The cylindrical filtering member having a bottom wall means that the cylindrical filtering member comprises a bottom wall and an annular side wall connected with the bottom wall, and the bottom wall and the annular side wall surround to form a columnar filtering cavity having an open end.

[0083] The embodiment realizes the third filtering member 12 by the cylindrical filtering member, which can surround the third chamber 13 outside the periphery of the fourth chamber 14, thereby increasing the filtering area of the third filtering member 12 in a limited space, and improving the filtering effect and efficiency; and the bottom wall of the cylindrical filtering member is connected with the second shell assembly 11, which can increase the connection stability between the cylindrical filtering member and the second shell assembly 11, thereby improving the reliability of the filtering device.

[0084] Optionally, the cylindrical filtering member of the embodiment comprises an annular filtering part 121 and a mounting part 122 connected at one end of the annular filtering part 121 away from the second outlet B2, and the mounting part 122 is connected with the second shell assembly 11.

[0085] The mounting portion 122 is connected to the second shell assembly 11 as the bottom wall of the cylindrical filter element. The mounting portion 122 can be a sealing plate without filtering function, which can reduce the influence of liquid or residue on the connection structure between the mounting portion 122 and the second shell assembly 11. The fourth chamber 14 is located in the annular filter portion 121, and the third chamber 13 is located between the annular filter portion 121 and the inner wall of the filter cavity 1.

[0086] Optionally, the side of the mounting portion 122 away from the fourth chamber 14 is provided with a plug-in portion, such as a protruding portion, which is plug-in connected to the inner wall of the filter cavity 1.

[0087] In another embodiment, the connection between the mounting portion and the second shell assembly can also be achieved by other connection modes.

[0088] In another embodiment, the bottom wall of the cylindrical filter element can be provided with a filtering structure to achieve filtering of the liquid to be filtered.

[0089] In another embodiment, the third filter element can only include an annular filter portion, and the end of the annular filter portion is connected to the second shell assembly.

[0090] In another embodiment, the third filter element can also have other shapes, such as a square cylinder or a plate.

[0091] Optionally, the spraying element 15 includes at least one spraying arm extending along the axial direction of the cylindrical filter element, and the spraying arm is provided with a plurality of spraying openings 151 spaced along the axial direction and facing the cylindrical filter element.

[0092] Optionally, the spraying element 15 of the present embodiment extends along the axial direction of the cylindrical filter element, and the spraying element 15 is provided with a plurality of spraying openings 151 spaced along the axial direction and facing the cylindrical filter element.

[0093] The opening of the cylindrical filter element faces the second outlet B2 and is communicated with the second outlet B2. The bottom wall of the cylindrical filter element is connected to the second shell assembly 11. The spraying element 15 extends along the axial direction of the cylindrical filter element to the bottom of the cylindrical filter element, and the spraying element 15 is provided with a plurality of spraying openings 151 spaced along the axial direction and facing the cylindrical filter element. Therefore, the spraying element 15 can guide the flushing fluid to different depth positions in the cylindrical filter element, thereby improving the flushing uniformity of different depth positions of the cylindrical filter element and improving the cleaning effect. In addition, the spraying element 15 can extend along the inner side wall of the cylindrical filter element, which can reduce the influence of the spraying element 15 on the flow channel space in the fourth chamber 14 and reduce the spraying path length between the spraying openings 151 and the cylindrical filter element, thereby improving the spraying and flushing effect of the cylindrical filter element.

[0094] Optionally, as shown in FIGS. 1-9, the spray member 15 partially shields the third filter 12 in the present embodiment; the filtering device further comprises a second pumping assembly 50 to provide pumping pressure for the fourth chamber 14 to form negative pressure in the fourth chamber 14, so that the liquid to be washed flows from the third chamber 13 to the fourth chamber 14.

[0095] Optionally, the spray member 15 partially shields the side wall of the cylindrical filter in the present embodiment. The spray member 15 partially shields the side wall of the cylindrical filter, for example, partially shields the annular filter portion 121, which means that part of the side wall of the cylindrical filter is not shielded by the spray member 15.

[0096] The second pumping assembly 50 provides pumping pressure for the liquid in the fourth chamber 14, so that at least part of the filtered liquid in the fourth chamber 14 is discharged from the second outlet B2, a pressure difference can be formed inside the third filter 12, specifically, the pressure on the outside is greater than the pressure on the inside, and the spray member 15 does not completely shield the side wall of the third filter 12, so that the liquid to be filtered quickly flows into the third chamber 13 from the first inlet A1, improving the washing efficiency.

[0097] Optionally, the second pumping assembly 50 is provided with a first liquid inlet F1 and a first liquid outlet F2, the first liquid inlet F1 communicates with the second outlet B2, and the first liquid outlet F2 communicates with the second inlet A2. In this way, the filtered filtered liquid can be recycled as backflushing liquid to backflush the third filter 12, saving energy.

[0098] In another embodiment, the second pumping assembly 50 can also communicate with the first inlet A1 or the second backflow port E3 (see below) to discharge liquid into the filtering cavity 1.

[0099] Optionally, the spray member 15 comprises a plurality of spray arms spaced apart along the circumference of the cylindrical filter, the plurality of spray arms extend along the axis of the cylindrical filter, and are symmetrically arranged about the central axis of the cylindrical filter.

[0100] The present embodiment realizes the spray flushing of the cylindrical filter through the plurality of spray arms spaced apart along the circumference of the cylindrical filter, which can improve the flushing uniformity of the cylindrical filter along the circumference; the plurality of spray arms extend along the axis of the cylindrical filter, which can improve the flushing uniformity of the cylindrical filter along the axis; and the plurality of spray arms are symmetrically arranged about the central axis of the cylindrical filter, which can further improve the flushing uniformity of the cylindrical filter along the circumference. Therefore, the present embodiment can improve the discharge efficiency of the residues remaining on the cylindrical filter, and further improve the filtering efficiency and effect.

[0101] The number of the plurality of spray arms can be 2, 3, etc., which is not limited.

[0102] In other embodiments, the number of the spray arms can be 1.

[0103] Optionally, as shown in FIG. 1, FIG. 4, and FIG. 9, the first outlet B1 is arranged away from the second outlet B2 relative to the first inlet A1, which can enable the liquid to be filtered input from the first inlet A1 to be quickly filtered and enter the fourth chamber 14, and then be quickly output from the second outlet B2, thereby improving the filtering efficiency; and the first outlet B1 for discharging residues is arranged away from the second outlet B2, which can reduce the risk of residues passing through the third filter 12 and entering the fourth chamber 14 to be discharged from the second outlet B2.

[0104] Optionally, as shown in FIG. 8 and FIG. 9, the second shell assembly 11 of the embodiment includes a third shell 111 and an end cover 112; the third shell 111 forms an accommodating cavity with an open end, and the third shell 111 is provided with the first inlet A1, the second inlet A2, the first outlet B1, and the second outlet B2; and the end cover 112 covers the open end to form the filtering cavity 1.

[0105] The third shell 111 and the end cover 112 are arranged separately to realize the second shell assembly 11, which can facilitate the installation of the third filter 12 into the filtering cavity 1 from the open end of the third shell 111, thereby improving the assembly convenience of the filtering mechanism 10.

[0106] Optionally, the second outlet B2 is located on an end wall of the third shell 111 at an end away from the end cover 112, and is arranged centrally relative to the fourth chamber 14; and the first inlet A1 and the first outlet B1 are located on a side wall of the third shell 111.

[0107] The second outlet B2 for outputting the filtered liquid and communicating with the fourth chamber 14 is located on an end face of the third shell 111 and is arranged centrally relative to the fourth chamber 14, which can improve the uniformity of the pressure of the liquid at each position along the circumference of the third filter 12, thereby improving the filtering effect of the third filter 12 on the liquid to be filtered at each position along the circumference, and improving the filtering efficiency; and the first inlet A1 for inputting the liquid to be filtered and the first outlet B1 for outputting the residues in the third chamber 13 are located on a side face of the filtering cavity 1, which can facilitate residue discharge, optimize the layout of the structures such as the third chamber 13 and the fourth chamber 14, and simplify the structure and reduce the volume of the filtering device.

[0108] The spraying member 15 is connected to an end of the third shell 111 away from the end cover 112, which facilitates the communication with the second inlet A2 for inputting the flushing fluid; and the spraying member 15 can be detachably or integrally arranged with the third shell 111.

[0109] Optionally, the third filter 12 is connected to the end cover 112, which can improve the installation stability of the third filter 12.

[0110] In another embodiment, the first shell assembly can also be implemented by two shells arranged in a mutual covering manner or the like.

[0111] Optionally, the filtering mechanism 10 further comprises a first driving assembly connected with the cylindrical filter and / or the spraying member 15, for driving the relative rotation between the cylindrical filter and the spraying member 15.

[0112] In an application scenario, the first driving assembly drives the cylindrical filter to rotate, so as to agitate the liquid in the filtering cavity 1, which can not only increase the flow speed of the liquid, but also increase the probability of the residue being separated from the cylindrical filter, thereby improving the filtering effect.

[0113] The first driving assembly drives the cylindrical filter to rotate, which can improve the rotation stability and reduce the rotation space, thereby improving the reliability of the filtering device and reducing the volume.

[0114] In another application scenario, the first driving member drives the spraying member 15 to rotate, or drives the cylindrical filter and the spraying member 15 to rotate simultaneously and in opposite directions, or the like, as long as the relative motion between the cylindrical filter and the spraying member 15 can be generated.

[0115] Optionally, the first driving assembly comprises a motor 161, which is used to drive the cylindrical filter to rotate, so that the cylindrical filter actively drives the liquid in the filtering cavity 1.

[0116] In the embodiment, the motor 161 actively disturbs the liquid in the filtering cavity 1, which can improve the disturbance effect and improve the filtering effect.

[0117] In other embodiments, a driving member such as an electric cylinder can be used instead of the motor.

[0118] Optionally, the bottom wall of the cylindrical filter in the embodiment extends along the axial direction of the cylindrical filter to form a rotating shaft portion 124, the spraying member 15 comprises a spraying arm extending along the axial direction of the cylindrical filter and towards the bottom, and a support portion 123 extending from the spraying arm along the radial direction of the cylindrical filter and towards the central axis of the cylindrical filter, and one end of the rotating shaft portion 124 away from the bottom wall is rotationally connected with the support portion 123.

[0119] The rotating shaft portion 124 is located in the fourth chamber 14.

[0120] In some embodiments, the spraying arm can be fixedly connected with the third shell 111 or integrally formed, and in the embodiment, the spraying arm is connected with the bottom of the cylindrical filter through the rotating shaft portion 124 and the support portion 123, which can further improve the rotation stability of the cylindrical filter, thereby improving the reliability of the filtering device.

[0121] In some embodiments, the spray arm is not fixedly connected with the third shell 111, and the spray arm can be supported by the rotating shaft part 124 and the support part 123.

[0122] Optionally, the support part 123 is located at the middle part of the spray arm along the axial direction of the cylindrical filter element.

[0123] Optionally, the first driving assembly further comprises a first bearing 163, an oil seal 164, and a rotating shaft 165; the motor 161 is arranged on the side of the end cover 112 away from the fourth chamber 14, the end cover 112 is provided with a limiting through hole, the output shaft of the motor 161 is rotatably arranged on the side wall of the limiting through hole of the end cover 112; the bottom of the cylindrical filter element is provided with a limiting blind hole on the side away from the fourth chamber 14, one end of the rotating shaft 165 is rotatably arranged on the side wall of the limiting through hole through the first bearing 163, and the oil seal 164 is arranged in the limiting through hole and fixedly connected with the output shaft of the motor 161; the other end of the rotating shaft 165 is limited in the limiting blind hole and fixedly connected with the side wall of the limiting blind hole; the support part 123 is provided with a limiting hole on the side close to the bottom of the cylindrical filter element, and one end of the rotating shaft part 124 away from the bottom of the cylindrical filter element is arranged in the limiting hole and rotatably connected with the inner wall of the limiting hole through the third bearing.

[0124] In other embodiments, other ways can also be used to realize the relative rotation between the cylindrical filter element and the spray element.

[0125] Optionally, a first sealing ring 166 is further arranged between the end cover 112 and the third shell 111 to improve the sealing performance of the filter chamber 1 at the connection between the end cover 112 and the third shell 111.

[0126] Optionally, the third shell 111 is further provided with a second exhaust port communicating with the filter chamber 1.

[0127] The liquid to be filtered usually contains some gas, in order to improve the filtering effect and reduce the influence of gas on the filtering, the filter chamber 1 can be provided with a second exhaust port to exhaust the gas.

[0128] Optionally, because the gas will be pierced when passing through the third filter element 12, the second exhaust port can be communicated with the third chamber 13 to quickly exhaust the gas from the filter chamber 1.

[0129] Optionally, the second exhaust port and the second inlet A2 can be arranged on the end wall of the end of the third shell 111 away from the end cover 112. The second exhaust port and the second inlet A2 are arranged on the outer peripheral region of the end wall of the end of the third shell 111 away from the end cover 112, the middle region of the end wall is provided with a protruding part, and the second outlet B2 communicating with the fourth chamber 14 is arranged on the protruding part.

[0130] In another embodiment, an exhaust port can also be arranged for the fourth chamber, or simultaneously arranged for the third chamber and the fourth chamber.

[0131] Optionally, as shown in FIG. 4, FIG. 5, FIG. 10 and FIG. 11, the first shell assembly 22 is further formed with a liquid collecting cavity 23, and the first shell assembly 22 is further provided with a liquid discharge port D1 and a liquid collecting port D2 which are in communication with the liquid collecting cavity 23; wherein the liquid discharge port D1 is in communication with the first inlet A1, and the liquid collecting port D2 is used for inputting the liquid to be filtered.

[0132] The filtering device of the embodiment is provided with the liquid collecting cavity 23, and the liquid collecting cavity 23 is in communication with the first inlet A1 of the third chamber 13, the liquid collecting cavity 23 can collect the liquid to be filtered through the liquid collecting port D2, and the collected liquid to be filtered is delivered to the third chamber 13 through the first inlet A1. In this way, the automatic collection of the liquid to be filtered can be realized, and the collection efficiency of the liquid to be filtered is improved.

[0133] In another embodiment, the liquid to be filtered can also be collected by other devices and delivered to the first inlet.

[0134] Optionally, as shown in FIG. 2 to FIG. 7, the slag collecting mechanism 20 further comprises a first pumping assembly 40 arranged at the slag discharge port E1, and used for discharging the slag in the slag collecting cavity 21 from the slag discharge port E1.

[0135] The embodiment discharges the slag through the slag discharge port E1 which is in communication with the slag collecting cavity 21, so as to improve the problems of slag accumulation and pollution in the slag collecting cavity 21; and the embodiment realizes the active and automatic discharge of the slag in the slag collecting cavity 21 through the first pumping assembly 40, so as to improve the discharge efficiency of the slag.

[0136] In another embodiment, the active and automatic slag discharge can be realized by other mechanisms; or the bottom wall of the slag collecting cavity can be arranged as an inclined surface, and the height of the slag discharge port is lower than the height of the first outlet, so that the slag can be passively and automatically discharged under the action of gravity; or the slag can be discharged manually.

[0137] The slag discharged from the first outlet B1 can be mixed with the filtering fluid, such as the liquid to be filtered and the flushing fluid, and part of the slag and the filtering fluid in the slag collecting cavity 21 can be discharged through the first outlet B1, and part of the slag and the filtering fluid can still be left in the slag collecting cavity 21. In order to realize the complete filtration of the slag, the first shell assembly 22 of the embodiment is provided with a first backflow port E2 which is in communication with the slag collecting cavity 21, and the second filtering member 24 arranged between the slag discharge port E1 and the first backflow port E2 is further used for filtering the mixture discharged from the first outlet B1, and the filtered liquid of the mixture is backflowed through the first backflow port E2, so as to improve the filtering effect of the filtering device.

[0138] Optionally, the first backflow port E2 is in communication with the pumping path of the second pumping assembly 50 to the second outlet B2.

[0139] The first backflow port E2 is communicated with the pumping path of the second pumping assembly 50 to the second outlet B2, so that the second pumping assembly 50 pumps the filtered liquid output from the first backflow port E2, improving the filtering efficiency.

[0140] Optionally, as shown in FIG. 4 and FIG. 9, the third shell 111 is provided with a second backflow port E3 communicated with the fourth chamber 14, and the first backflow port E2 is communicated with the second backflow port E3, so that the filtered liquid output from the first backflow port E2 is output to the second pumping assembly 50 through the second outlet B2, so that the second pumping assembly 50 can pump all the filtered liquid through the second outlet B2.

[0141] In another embodiment, the first backflow port can be directly communicated with the second pumping assembly, or another pumping assembly is used to pump the filtered liquid in the slag collecting chamber.

[0142] Optionally, as shown in FIG. 4, the filtering device further comprises a second filter 25 arranged in the liquid collecting chamber 23, used to perform primary filtering on the to-be-filtered liquid flowing into the liquid collecting chamber 23, and the primary filtered to-be-filtered liquid flows into the third chamber 13 through the liquid outlet D1 of the liquid collecting chamber 23 and the first inlet A1.

[0143] In this embodiment, the to-be-filtered liquid is primary filtered by the second filter 25, and then secondary filtered by the third filter 12, and three times filtered by the first filter 24, so that the filtering effect and the slag-water separation effect are improved.

[0144] Optionally, the filtering pore diameter of the second filter 25 is larger than that of the third filter 12, and the filtering pore diameter of the third filter 12 is larger than that of the first filter 24.

[0145] Optionally, as shown in FIG. 4, FIG. 5 and FIG. 6, the filtering device further comprises a flow splitting mechanism 60 communicated with the first liquid outlet F2 and the second inlet A2 respectively, and the flow splitting mechanism 60 is used to guide the filtered liquid output from the second outlet B2 and the first backflow port E2 of the second pumping assembly 50 to the second inlet A2 and the upper part of the liquid collecting chamber 23, so as to wash the to-be-washed object located above the liquid collecting chamber 23 by using part of the filtered liquid as flushing fluid and another part of the filtered liquid as cleaning liquid, and the to-be-filtered liquid after washing the to-be-washed object is collected by the liquid collecting chamber 23 to the first inlet A1.

[0146] In this embodiment, the second pumping assembly 50 and the flow splitting mechanism 60 are used to realize the recycling use of the filtered liquid, so that the cleaning liquid is saved and the cost is saved.

[0147] Optionally, as shown in FIGS. 3-7, the filtering device further comprises a pipeline 30 communicating the second inlet A2 and the first liquid outlet F2, respectively. Since the pipeline 30 has higher flexibility in arrangement, the communication between the second inlet A2 and the first liquid outlet F2 through the pipeline 30 can improve the flexibility of the layout between the second pumping assembly 50, the slag collecting mechanism 20 and the filtering mechanism 10, and improve the applicability of the filtering device.

[0148] Of course, in other embodiments, the second inlet can also be directly communicated with the first liquid outlet, or communicated through other mechanisms.

[0149] Optionally, as shown in FIG. 11, the slag collecting cavity 21 is provided with two slag collecting ports D3, and the axial direction of the cylindrical filtering member extends horizontally, and the two slag collecting ports D3 are arranged along the gravity direction.

[0150] The provision of the two slag collecting ports D3 in the embodiment can improve the slag discharging efficiency, and the two slag collecting ports D3 are arranged along the gravity direction, so that residues of different weights or different deposition degrees can be discharged through different slag collecting ports D3, thereby improving the slag discharging efficiency.

[0151] Optionally, the bottom wall of the slag collecting cavity 21 is provided with a slag collecting groove communicated with the lower slag collecting port D3.

[0152] The provision of the slag collecting groove on the bottom wall of the slag collecting cavity 21 and communicated with the slag collecting port D3 can enable the residues to be gathered in the slag collecting groove under the action of gravity, so that the residues in the slag collecting cavity 21 can be further deposited and gathered, avoiding being disturbed by the liquid, and facilitating the rapid discharge of the residues.

[0153] Optionally, as shown in FIGS. 2-4, 7 and 10, the first shell assembly 22 comprises a first shell 221 and a second shell 222, the first shell 221 is arranged to form the liquid collecting cavity 23, and the second shell 222 is arranged outside the first shell 221, and the second shell 222 and the first shell 221 form the slag collecting cavity 21, and the first inlet A1 and the first outlet B1 are located at opposite ends of the third chamber 13.

[0154] The first shell assembly 22 is realized by the separate first shell 221 and the second shell 222 in the embodiment, which can improve the assembly and cleaning convenience of the first shell assembly 22; and the second shell 222 is arranged outside the first shell 221 to form the slag collecting cavity 21 with the first shell 221, which can extend the length of the slag collecting cavity 21 without increasing the overall size of the first shell assembly 22, thereby increasing the volume of the liquid collecting cavity 23 and the slag collecting cavity 21, which is conducive to the miniaturization of the filtering device; and the slag collecting cavity 21 is located at the outer periphery of the liquid collecting cavity 23, which facilitates the discharge of the residues.

[0155] The first shell 221 is provided with a liquid discharge port D1 and a liquid collecting port D2; the second shell 222 is provided with a slag collecting port D3, a first backflow port E2 and a slag discharge port E1.

[0156] The first backflow port E2, the slag collecting port D3 and the liquid discharge port D1 are arranged on the same side of the third shell 111, facilitating communication with the third chamber 13 and the second outlet B2 of the third shell 111, and capable of optimizing the layout and simplifying the structure.

[0157] Optionally, as shown in FIG. 2 and FIG. 10, the first shell 221 is further provided with a first exhaust port C2 in communication with the liquid collecting cavity 23.

[0158] The liquid to be filtered usually contains some gas. In order to improve the filtering effect and reduce the influence of gas on filtering, the first exhaust port C2 can be arranged on the filtering cavity 1 to discharge the gas.

[0159] Optionally, the first outlet B1 is arranged on the same side of the first inlet A1 and the second backflow port E3 on the side of the third shell 111 close to the filtering mechanism 10; the second outlet B2, the second inlet A2 and the second exhaust port C1 are arranged on the end of the third shell 111 away from the end cover 112.

[0160] The slag collecting cavity 21 can be arranged in an arc shape or a partial circular shape.

[0161] The first outlet B1 and the second backflow port E3 are arranged on opposite ends of the third shell 111, the first outlet B1 is arranged away from the second outlet B2, and the second backflow port E3 is arranged close to the second outlet B2.

[0162] The first backflow port E2 and the second backflow port E3 are in communication, and the slag collecting port D3 and the first outlet B1 are in communication. This structure can prolong the length of the slag collecting cavity 21 and form a cyclone channel, so that the residual mixture is cyclone collected in the slag collecting cavity 21. This structure can also reduce the influence of the backflow fluid after slag collection on the discharge of the residual mixture to the slag collecting cavity 21, and improve the slag collection effect.

[0163] Optionally, as shown in FIG. 2, FIG. 3, FIG. 5, FIG. 7, FIG. 10 and FIG. 11, the first shell assembly 22 further comprises a first liquid collecting disc 224 arranged on the second shell 222 and the first shell 221 and provided with a liquid inlet in communication with the liquid collecting port D2.

[0164] The first liquid collecting disc 224 of the embodiment enlarges the liquid collecting area of the liquid collecting cavity, i.e. improves the liquid collecting capacity of the liquid collecting port D2, and can improve the liquid collecting effect of the liquid collecting cavity.

[0165] The second shell 222 can form the slag collecting cavity 21 with an open upper end, and the first liquid collecting disc 224 is arranged at the opening of the second shell 222 to close the opening, that is, the first liquid collecting disc 224, the second shell 222 and the first shell 221 jointly form the slag collecting cavity 21, thereby improving the compactness of the structure.

[0166] Of course, in other embodiments, the second shell or the second shell and the first shell form the slag collecting cavity.

[0167] Optionally, the first shell assembly 22 further comprises a second sealing ring 223 and a cover, the cover is arranged on the first liquid collecting disc 224 and is provided with a liquid inlet communicating with the liquid collecting cavity 23; and the second sealing ring 223 is arranged between the first liquid collecting disc 224 and the cover.

[0168] Optionally, as shown in FIGS. 2 to 4, the flow splitting mechanism 60 comprises a fourth shell 225 and a flow splitting valve 228; the fourth shell 225 forms a flow splitting cavity communicating with the first liquid outlet F2 and a jet port 227 communicating with the flow splitting cavity; the fourth shell 225 is arranged below the first liquid collecting disc 224, and the jet port 227 extends to a side of the first liquid collecting disc 224 away from the fourth shell 225; and the flow splitting valve 228 is arranged at the flow splitting cavity to control the opening and closing of the flow splitting cavity.

[0169] In this embodiment, the fourth shell 225 and the flow splitting valve 228 arranged in the fourth shell 225 are used to realize the flow splitting mechanism 60, which can protect the flow splitting valve 228 and realize the flow splitting cavity, and the flow splitting valve 228 is used to control the opening and closing of the liquid in the flow splitting cavity to realize flow splitting control; and the fourth shell 225 is arranged below the first liquid collecting disc 224, so that the liquid jetted from the jet port 227 of the fourth shell 225 directly washes the object to be washed upward, and the filtered liquid directly falls onto the first liquid collecting disc 224 under the action of gravity, which can reduce the path of the liquid jetted to the object to be washed, is conducive to the miniaturization design of the filtering equipment, can reduce the jet pressure loss of the liquid, and improves the washing effect.

[0170] The number of the jet port 227 is not limited in this application, and can be determined according to the washing requirement.

[0171] Optionally, the fourth shell 225 is extended to form a pumping flow channel 229, the pumping flow channel 229 communicates with the second pumping assembly 50 and the flow splitting cavity, and the pipeline 30 connected to the first inlet A1 is connected to the pumping flow channel 229, so that the control of the flow splitting valve 228 on the liquid flow in the flow splitting cavity will not affect the flushing fluid, and the washing and / or backflushing and deslagging work can be selectively performed, thereby improving the applicability of the filtering equipment.

[0172] Optionally, as shown in FIG. 2, FIG. 4 to FIG. 7, the filtering mechanism 10 and the first shell assembly 22 are arranged in a first direction, the second pumping assembly 50 and the filtering mechanism 10 are arranged in a second direction perpendicular to the first direction, and the second pumping assembly 50 is inclined towards the liquid collecting cavity 23 (such as the first shell 221), and the shunt mechanism 60 is arranged between the first shell 221 and the second pumping assembly 50; wherein the first direction is parallel to the arrangement direction of the third chamber 13 and the fourth chamber 14.

[0173] The filtering mechanism 10, the first shell assembly 22 and the second pumping assembly 50 are arranged in two perpendicular directions in the embodiment, which can optimize the layout; the second pumping assembly 50 is inclined towards the first shell 221 where the liquid collecting cavity 23 is arranged, and the shunt mechanism 60 is arranged between the first shell 221 and the second pumping assembly 50, which can reduce the layout space, and the arrangement direction of the filtering mechanism 10 and the first shell assembly 22 is parallel to the arrangement direction of the third chamber 13 and the fourth chamber 14, which facilitates the communication between the various ports of the first shell assembly 22 and the various ports of the filtering mechanism 10.

[0174] Optionally, the third shell 111, the first shell 221 and the second shell 222 of the embodiment are integrally arranged, which can improve the sealing performance and integration, and improve the reliability and miniaturization design.

[0175] Optionally, as shown in FIG. 3, the filtering device of the embodiment further comprises a temperature sensor 70 arranged in the shunt mechanism 60, which is used to detect the temperature of the cleaning liquid, so as to monitor the temperature of the cleaning liquid and improve the cleaning effect.

[0176] Optionally, the filtering device can further comprise a heating device, which is used to heat the cleaning liquid based on the temperature of the cleaning liquid, so as to improve the cleaning effect.

[0177] The filtering mechanism 10 and the slag collecting mechanism 20 of the embodiment can separate the residue from the circulating water, realize clean water cleaning, and avoid secondary pollution; the filtering mechanism 10 of the embodiment can automatically clean the third filter 12 through backflushing jet, and the third filter 12 does not need to be maintained by people; the embodiment can ensure the stable water output of the second pumping assembly 50, improve the pumping efficiency, and make it easier to discharge the residue after the residue is accumulated.

[0178] Optionally, the first pumping assembly 40 is arranged on the extension line of the central axis of the filtering cavity 1, so as to improve the pumping power of the first pumping assembly 40 on the residue and improve the residue discharge efficiency.

[0179] In another embodiment, as shown in FIGS. 12-18, FIG. 12 is a structural schematic diagram of another embodiment of the filtering device of the present application; FIG. 13 is an exploded structural schematic diagram of the filtering device of the embodiment of FIG. 12; FIG. 14 is a sectional view of the filtering device of the embodiment of FIG. 12; FIG. 15 is another sectional view of the filtering device of the embodiment of FIG. 12; FIG. 16 is a bottom view of the filtering device of the embodiment of FIG. 12; FIG. 17 is a structural schematic diagram of the backflushing mechanism, the second shell and the annular filter of the filtering device of the embodiment of FIG. 12; and FIG. 18 is a structural schematic diagram of the second shell, the fourth shell and the second liquid collecting tray of the filtering device of the embodiment of FIG. 12.

[0180] As shown in FIGS. 12-16 and 18, the first shell assembly 22 of the present embodiment includes a first shell 221 forming the liquid collecting cavity 23 and a second shell 222 forming the slag collecting cavity 21, which are respectively located at opposite sides of the filtering mechanism 10. The first shell 221 is provided with a liquid discharge port D1 and a liquid collecting port D2, and the second shell 222 is provided with a slag collecting port D3, a slag discharge port E1 and a first backflow port E2.

[0181] The filtering device of the present embodiment is different from that shown in FIGS. 1-11 in that:

[0182] The first shell 221 and the second shell 222 of the present embodiment are respectively located at opposite sides of the filtering mechanism 10, which can reduce the mutual interference of liquid collecting and slag collecting.

[0183] Optionally, as shown in FIGS. 14, 15 and 17, the slag collecting mechanism 20 further includes an annular filter 26 arranged in the slag collecting cavity 21, which divides the slag collecting cavity 21 into a first chamber 211 outside the annular filter 26 and a second chamber 212 inside the annular filter 26.

[0184] The second chamber 212 is in communication with the slag discharge port E1, and the first chamber 211 is further in communication with the filtering cavity 1.

[0185] The present embodiment realizes the slag filtering in the slag collecting cavity 21 through the annular filter 26, which can surround the second chamber 212 outside the periphery of the first chamber 211, thereby increasing the filtering area in a limited space and improving the filtering effect and efficiency.

[0186] Optionally, the annular filter 26 can be an annular filter screen.

[0187] The embodiment not only prolongs the length of the slag collecting cavity 21, but also forms a cyclone channel to make the slag mixture cyclone in the slag collecting cavity 21, which can reduce the influence of the backflow fluid on the slag mixture after slag collecting, and improve the slag collecting effect. Moreover, the annular filter 26 can further improve the slag collecting effect of the slag mixture in the slag collecting cavity 21.

[0188] Optionally, as shown in FIG. 17, the second shell 222 includes a barrel portion 2221 and an end cover 2222, the end cover 2222 covers the opening of the barrel portion 2221 to form a slag collecting cavity; the annular filter 26 is arranged in the slag collecting cavity and connected with the end cover 2222 to improve the stability.

[0189] Optionally, the first shell assembly 22 further includes a second liquid collecting disc 226 arranged on the first shell 221 and provided with a liquid inlet communicating with the liquid collecting cavity 23.

[0190] The second liquid collecting disc 226 can also extend to the fourth shell 225.

[0191] The specific structure of the second liquid collecting disc 226 can refer to the first liquid collecting disc in the above embodiment.

[0192] Optionally, the third shell 111 and the second shell 222 are integrally arranged, which can improve the sealing performance and integration degree, and improve the reliability and miniaturization design.

[0193] Optionally, as shown in FIG. 15 and FIG. 17, the first driving assembly of the embodiment includes an impeller 162, which is arranged in the fourth cavity 14 and connected with the cylindrical filter, and rotates along the circumference of the cylindrical filter under the hydraulic pressure of the filtered liquid in the fourth cavity 14 to drive the cylindrical filter to rotate.

[0194] The embodiment passively rotates the impeller 162 to drive the cylindrical filter to rotate, so as to passively disturb the liquid in the filtering cavity 1, which can improve the filtering effect; and without setting an active driving member, the energy consumption can be saved.

[0195] The working principle, other structures and expansion schemes of the embodiment can refer to the above embodiment.

[0196] In another embodiment, as shown in FIGS. 19-21, FIG. 19 is a structural schematic diagram of another embodiment of the filtering device of the present application; FIG. 20 is an exploded structural schematic diagram of the filtering device of the embodiment of FIG. 19; and FIG. 21 is a sectional view of the filtering device of the embodiment of FIG. 19. The filtering mechanism 10 and the slag collecting mechanism 20 (such as the first shell 221 and the second shell 222) are arranged in a first direction, and the second pumping assembly 50 is arranged in a second direction perpendicular to the first direction relative to the filtering mechanism 10; wherein the first direction is parallel to the arrangement direction of the third chamber 13 and the fourth chamber 14.

[0197] In this embodiment, the filtering mechanism 10, the first shell 221, the second shell 222, and the second pumping assembly 50 are arranged in two perpendicular directions, which can optimize the layout.

[0198] Optionally, the shell of the second pumping assembly 50, the third shell 111, and the second shell 222 are integrally arranged, which can improve the sealing performance and integration, and can improve the reliability and miniaturization design.

[0199] The working principle, other structures, and extension schemes of this embodiment can refer to the above embodiments.

[0200] The filtering mechanism of the present application can improve the filtering efficiency under the limited filter screen (filtering member) area, and has no extrusion force on the filter screen, which can reduce the secondary pollution problem caused by the residue penetrating the filter screen. The filtering mechanism can make the residue accumulate in the slag collecting chamber and not adhere to the filter screen, which facilitates the discharge of the residue.

[0201] The cyclone slag collecting chamber of the present application can collect the residue, separate the residue from the circulating cleaning water, and keep the circulating water clean. The slag collecting chamber is provided with a drainage pump (i.e., the second pumping assembly), which can quickly discharge the residue.

[0202] The above filtering member of the present application can be implemented by a filter screen, or can be implemented by a microporous filter paper type, non-woven fabric, or wire-wound type filtering member.

[0203] The application further provides a slag collecting mechanism, as shown in FIGS. 2-4, 7, 10 and 11. The slag collecting mechanism is used in a filtering device, and the filtering device comprises a filtering mechanism 10 and a slag collecting mechanism 20. The slag collecting mechanism 20 comprises a first shell assembly 22 and a first filtering piece 24. The first shell assembly 22 is provided with a slag collecting cavity 21, a slag collecting port D3, a first backflow port E2 and a slag discharging port E1 which are respectively communicated with the slag collecting cavity 21. The first filtering piece 24 is arranged in the slag collecting cavity 21 and located between the slag discharging port E1 and the first backflow port E2. The slag collecting port D3 is used to communicate with the filtering cavity 1 of the filtering mechanism, so as to collect the residue mixture discharged from the filtering cavity 1 into the slag collecting cavity 21. The first backflow port E2 is used to discharge the filtered liquid after the residue mixture is filtered by the first filtering piece 24. The slag discharging port E1 is used to discharge at least the residue in the residue mixture. The slag collecting cavity 21 is arranged on one side of the filtering mechanism 10, and the slag collecting cavity 21 and the filtering mechanism 10 are arranged along a preset direction.

[0204] The slag collecting mechanism 20 comprises the first shell assembly 22 and the first filtering piece 24. The first shell assembly 22 is provided with the slag collecting cavity 21 and the slag collecting port D3, the first backflow port E2 and the slag discharging port E1 which are communicated with the slag collecting cavity 21. The first filtering piece 24 is arranged in the slag collecting cavity 21 and located between the slag discharging port E1 and the first backflow port E2. The slag collecting port D3 is used to communicate with the filtering cavity 1 of the filtering mechanism 10, so as to collect the residue mixture discharged from the filtering cavity 1 into the slag collecting cavity 21, realize efficient slag collecting and reduce the accumulation of the residue in the filtering cavity 1. The first filtering piece 24 can be used to filter the residue mixture collected into the slag collecting cavity 21 again, so as to separate the residue mixture again, discharge the residue into the slag collecting cavity 21 through the slag discharging port E1, recover the filtered liquid in the residue mixture through the first backflow port E2 and improve the residue-water separation effect of the slag collecting mechanism 20 and the filtering device. Further, the slag collecting cavity 21 is arranged on one side of the filtering mechanism 10 and arranged along a preset direction, so as to reduce the interference between the slag collecting cavity 21 and the filtering cavity 1, facilitate the arrangement of various ports communicated with the slag collecting cavity 21 and improve the reliability of the slag collecting mechanism 20, the filtering device and the cleaning device.

[0205] Optionally, the first backflow port E2 and the slag collecting port D3 are respectively communicated with opposite ends of the filtering cavity 1, that is, the first backflow port E2 and the slag collecting port D3 are respectively communicated with the filtering cavity 1 and located at opposite ends of the filtering cavity 1. This structure can prolong the length of the slag collecting cavity 21 and form a cyclone channel, so as to make the residue mixture swirl in the slag collecting cavity 21. This structure can also reduce the influence of the backflow fluid on the discharge of the residue mixture into the slag collecting cavity 21 after slag collecting, so as to improve the slag collecting effect.

[0206] Optionally, the first filtering piece 24 can be a filtering screen.

[0207] Optionally, as shown in FIG. 4, FIG. 5, FIG. 10 and FIG. 11, the first shell assembly 22 is further formed with a liquid collecting cavity 23, and the first shell assembly 22 is further provided with a liquid discharge port D1 and a liquid collecting port D2 which are in communication with the liquid collecting cavity 23; wherein the liquid discharge port D1 is used to communicate with the filtering cavity 1, and the liquid collecting port D2 is used to collect the liquid to be filtered.

[0208] The filtering device of the present embodiment is provided with the liquid collecting cavity 23 which is in communication with the filtering cavity 1, and the liquid collecting cavity 23 can collect the liquid to be filtered through the liquid collecting port D2 and deliver the collected liquid to be filtered to the filtering cavity 1. In this way, the automatic collection of the liquid to be filtered can be realized, and the collection efficiency of the liquid to be filtered is improved.

[0209] In another embodiment, the liquid to be filtered can also be collected by other devices and delivered to the filtering cavity 1.

[0210] Optionally, as shown in FIG. 2 to FIG. 7, the slag collecting mechanism 20 further comprises a first pumping assembly 40 which is arranged at the slag discharge port E1 and is used to discharge at least the slag in the slag collecting cavity 21 from the slag discharge port E1.

[0211] The present embodiment discharges the slag through the slag discharge port E1 which is in communication with the slag collecting cavity 21, so as to improve the problems of accumulation and pollution of the slag in the slag collecting cavity 21; and the present embodiment realizes the active and automatic discharge of the slag in the slag collecting cavity 21 through the first pumping assembly 40, so as to improve the discharge efficiency of the slag.

[0212] In another embodiment, the active automatic slag discharge can be realized by other mechanisms; or the bottom wall of the slag collecting cavity can be arranged as an inclined surface, and the height of the slag discharge port is lower than the height of the outlet of the filtering cavity 1, so that the slag can be passively and automatically discharged under the action of gravity; or the slag can be discharged manually.

[0213] The slag discharged from the filtering cavity 1 can be mixed with the filtering fluid, such as the liquid to be filtered and the flushing fluid, and part of the slag and the filtering fluid in the slag collecting cavity 21 can be discharged through the filtering cavity 1, and part of the slag and the filtering fluid can be left in the slag collecting cavity 21. In order to realize the complete filtration of the slag, the first shell assembly 22 of the present embodiment is provided with a first backflow port E2 which is in communication with the slag collecting cavity 21, and the second filtering member 24 arranged between the slag discharge port E1 and the first backflow port E2 is further used to filter the mixture discharged from the filtering cavity 1, and the filtered liquid of the mixture is backflowed through the first backflow port E2, so as to improve the filtering effect of the filtering device.

[0214] Optionally, as shown in FIG. 4, the slag collecting mechanism 20 further comprises a second filter 25 arranged in the liquid collecting cavity 23, wherein the filtering pore size of the second filter 25 is larger than that of the first filter 24. The second filter 25 is used to perform primary filtration on the to-be-filtered liquid flowing into the liquid collecting cavity 23, the primary filtered to-be-filtered liquid is subjected to secondary filtration through the filtering cavity 1, and the mixture output from the filtering cavity 1 after the secondary filtration is subjected to tertiary filtration through the first filter 24, so that the filtering effect and the slag-water separation effect can be improved.

[0215] Optionally, as shown in FIG. 11, the slag collecting cavity 21 is provided with two slag collecting ports D3, and the two slag collecting ports D3 are arranged along the gravity direction.

[0216] The two slag collecting ports D3 arranged along the gravity direction can discharge residues of different weights or different deposition degrees through different slag collecting ports D3, so that the slag discharge efficiency can be improved.

[0217] Optionally, the bottom wall of the slag collecting cavity 21 is provided with a slag collecting groove in communication with the slag collecting port D3 located below.

[0218] The slag collecting groove arranged on the bottom wall of the slag collecting cavity 21 and in communication with the slag collecting port D3 can enable the residues to be gathered in the slag collecting groove under the action of gravity, so that the residues in the slag collecting cavity 21 can be further deposited and gathered, the residues are prevented from being disturbed by the liquid, and the residues can be quickly discharged.

[0219] Optionally, as shown in FIGS. 2 and 10, the first shell assembly 22 is further provided with a first exhaust port C2 in communication with the liquid collecting cavity 23. Some gases are usually mixed in the to-be-filtered liquid, and in order to improve the filtering effect and reduce the influence of the gases on the filtration, the filtering cavity 1 can be provided with the first exhaust port C2 to discharge the gases.

[0220] Optionally, as shown in FIGS. 2 to 4, 7 and 10, the first shell assembly 22 comprises a first shell 221 and a second shell 222, the first shell 221 surrounds to form the liquid collecting cavity 23, the second shell 222 surrounds the first shell 221, and the slag collecting cavity 21 is formed between the second shell 222 and the first shell 221, the first inlet A1 and the first outlet B1 are located at opposite ends of the same side of the filtering mechanism 10; the first shell 221 is provided with a liquid discharge port D1 and a liquid collecting port D2; and the second shell 222 is provided with a slag collecting port D3, a first backflow port E2 and a slag discharge port E1.

[0221] The first shell assembly 22 is realized by the separated first shell 221 and the second shell 222, so that the assembly and cleaning convenience of the first shell assembly 22 can be improved; the second shell 222 is surrounded outside the first shell 221 to form the slag collecting cavity 21 with the first shell 221, so that the length of the slag collecting cavity 21 can be prolonged without increasing the overall size of the first shell assembly 22, thereby increasing the volume of the slag collecting cavity 21 and the liquid collecting cavity 23, and facilitating the miniaturization of the filter equipment; and the slag collecting cavity 21 is located outside the periphery of the liquid collecting cavity 23, so that the residual slag can be easily discharged.

[0222] The first exhaust port C2 is arranged on the first shell 221.

[0223] Optionally, as shown in FIGS. 2, 3, 5, 7, 10 and 11, the first shell assembly 22 further comprises a first liquid collecting disc 224 arranged on the second shell 222 and the first shell 221 and provided with a liquid inlet communicating with the liquid collecting cavity 23.

[0224] The first liquid collecting disc 224 can expand the liquid collecting area of the liquid collecting cavity, i.e., improve the liquid collecting capacity of the liquid collecting port D2, so that the liquid collecting effect of the liquid collecting cavity can be improved.

[0225] The second shell 222 can form the slag collecting cavity 21 with an open upper end, and the first liquid collecting disc 224 is arranged at the opening of the second shell 222 to close the opening, i.e., the first liquid collecting disc 224, the second shell 222 and the first shell 221 jointly form the slag collecting cavity 21, so that the compactness of the structure can be improved.

[0226] Of course, in other embodiments, the second shell or the second shell and the first shell form the slag collecting cavity.

[0227] Optionally, the first shell assembly 22 further comprises a second sealing ring 223 and a cover, the cover is arranged on the first liquid collecting disc 224 and provided with a liquid inlet communicating with the liquid collecting cavity 23, and the second sealing ring 223 is arranged between the first liquid collecting disc 224 and the cover.

[0228] The slag collecting cavity 21 can be arranged in an arc shape or a partial circular shape.

[0229] The first outlet B1 and the second backflow port E3 are arranged at opposite ends of the third shell 111, the first outlet B1 is arranged away from the second outlet B2, and the second backflow port E3 is arranged close to the second outlet B2.

[0230] The first backflow port E2 is communicated with the second backflow port E3, and the slag collecting port D3 is communicated with the first outlet B1. This structure can prolong the length of the slag collecting cavity 21, and forms a spiral flow channel, so that the residue mixture is spirally collected in the slag collecting cavity 21. This structure can also reduce the influence of the backflow fluid on the residue mixture after slag collection, and can improve the slag collection effect.

[0231] In another embodiment, as shown in FIGS. 12-16 and 18, the first shell assembly 22 includes a first shell 221 forming the liquid collecting cavity 23 and a second shell 222 forming the slag collecting cavity 21, and the first shell 221 and the second shell 222 are respectively located on opposite sides of the filtering mechanism 10. The first shell 221 is provided with the liquid outlet D1 and the liquid collecting port D2, and the second shell 222 is provided with the slag collecting port D3 and the slag outlet E1 and the first backflow port E2.

[0232] The filtering device of the present embodiment is different from that shown in FIGS. 1-11 in that:

[0233] The first shell 221 and the second shell 222 of the present embodiment are respectively located on opposite sides of the filtering mechanism 10, which can reduce the mutual interference of liquid collecting and slag collecting.

[0234] Optionally, as shown in FIGS. 14, 15 and 17, the slag collecting mechanism 20 further includes a ring-shaped filter 26 arranged in the slag collecting cavity 21, and the ring-shaped filter 26 divides the slag collecting cavity 21 into a first chamber 211 outside the ring-shaped filter 26 and a second chamber 212 inside the ring-shaped filter 26.

[0235] The second chamber 212 is communicated with the slag outlet E1, and the first chamber 211 is further communicated with the filtering cavity 1.

[0236] The present embodiment realizes residue filtration in the slag collecting cavity 21 through the ring-shaped filter 26, which can surround the first chamber 211 around the outer periphery of the second chamber 212, so as to increase the filtering area in a limited space, thereby improving the filtering effect and efficiency.

[0237] Optionally, the ring-shaped filter 26 can be a ring-shaped filter screen.

[0238] The present embodiment not only prolongs the length of the slag collecting cavity 21 and forms a spiral flow channel, so that the residue mixture is spirally collected in the slag collecting cavity 21, but also reduces the influence of the backflow fluid on the residue mixture after slag collection, and can improve the slag collection effect. Furthermore, the ring-shaped filter 26 can further increase the effect of spirally collecting the residue mixture in the slag collecting cavity 21.

[0239] Optionally, as shown in FIG. 17, the second shell 222 comprises a barrel portion 2221 and an end cover 2222, the end cover 2222 covers the opening of the barrel portion 2221 to form a slag collecting cavity; the annular filter 26 is arranged in the slag collecting cavity and is arranged in connection with the end cover 2222 to improve the stability thereof.

[0240] Optionally, as shown in FIGS. 12-16 and 18, the first shell assembly 22 further comprises a second liquid collecting disc 226 arranged on the first shell 221 and provided with a liquid inlet communicating with the liquid collecting cavity 23.

[0241] The above filter of the present application can be realized by a filter screen, or by a microporous filter paper type, non-woven fabric or wire-wound type filter.

[0242] The other structures of the slag collecting mechanism can be extended according to the above embodiments.

[0243] The slag collecting mechanism of the present embodiment can be used in the above filter device.

[0244] The present application further provides a cleaning device, comprising a device body and a filter device, the device body forms a cleaning cavity, and the filter device is mounted on the device body to filter the to-be-filtered liquid generated in the cleaning cavity.

[0245] At least the slag collecting mechanism is arranged in the cleaning cavity.

[0246] The working and structure of the filter device can be referred to the above embodiments.

[0247] Optionally, the cleaning cavity comprises a dish washing cavity, i.e., the cleaning device can comprise a dish washing machine.

[0248] In other embodiments, the cleaning device can further comprise a washing machine, an automatic beverage machine or other devices requiring slag-water separation.

[0249] The above is only the embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation according to the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A slag collecting mechanism characterized by, The application relates to a filtering device, which comprises a filtering mechanism and a slag collecting mechanism. A first shell assembly is provided with a slag collecting cavity, slag collecting ports, a first backflow port and a slag discharging port; A first filtering element is arranged in the slag collecting cavity and located between the slag discharging port and the first backflow port; The slag collecting ports are used for communicating with a filtering cavity of the filtering mechanism to collect residue mixture discharged from the filtering cavity into the slag collecting cavity, the first backflow port is used for discharging filtered liquid after the residue mixture is filtered by the first filtering element, and the slag discharging port is used for discharging at least residue in the residue mixture. The slag collecting cavity is arranged on one side of the filtering mechanism, and the slag collecting cavity and the filtering mechanism are arranged along a preset direction.

2. The slag collecting mechanism according to claim 1, characterized in that The first backflow port and the slag collecting port respectively communicate with opposite ends of the filtering cavity.

3. The slag collecting mechanism according to claim 1, characterized in that, The first shell assembly is further provided with a liquid collecting cavity, a liquid discharging port and a liquid collecting port which communicate with the liquid collecting cavity; The liquid discharging port is used for communicating with the filtering cavity, and the liquid collecting port is used for collecting liquid to be filtered.

4. The slag collecting mechanism according to claim 1, characterized in that, The slag collecting mechanism further comprises: A first pumping assembly is arranged in the slag discharging port and used for discharging at least residue in the slag collecting cavity from the slag discharging port.

5. The slag collecting mechanism according to claim 3, wherein The slag collecting mechanism further comprises: A second filtering element is arranged in the liquid collecting cavity; The filtering pore diameter of the second filtering element is larger than that of the first filtering element.

6. The slag collecting mechanism of claim 1, wherein The slag collecting cavity is provided with two slag collecting ports; The two slag collecting ports are arranged in a gravity direction.

7. The slag collecting mechanism according to claim 6, characterized in that A slag collecting groove is arranged on a bottom wall of the slag collecting cavity and communicates with the lower slag collecting port.

8. The slag collecting mechanism according to claim 3, wherein The first shell assembly is further provided with a first exhaust port which communicates with the liquid collecting cavity.

9. The slag collecting mechanism according to claim 3, wherein The first shell assembly comprises a first shell and a second shell, the first shell surrounds to form the liquid collecting cavity, the second shell surrounds the first shell, and the second shell and the first shell form the slag collecting cavity.

10. The slag collecting mechanism according to claim 9, characterized in that The first shell assembly further comprises: A first liquid collecting disc is arranged on the second shell and the first shell and provided with a liquid inlet port which communicates with the liquid collecting cavity.

11. The slag collecting mechanism according to claim 3, characterized in that, The first shell assembly comprises a first shell and a second shell, the first shell forms the liquid collecting cavity, the second shell forms the slag collecting cavity, and the first shell and the second shell are respectively located on opposite sides of the filtering mechanism.

12. The slag collecting mechanism according to claim 11, characterized in that The slag collecting mechanism comprises a ring-shaped filtering element arranged in the slag collecting cavity, the ring-shaped filtering element divides the slag collecting cavity into a first chamber located outside the ring-shaped filtering element and a second chamber located inside the ring-shaped filtering element, the second chamber communicates with the slag discharging port, and the first chamber further communicates with the filtering cavity.

13. The slag collecting mechanism of claim 11, wherein, The first shell assembly further comprises: A second liquid collecting disc is arranged on the first shell and provided with a liquid inlet port which communicates with the liquid collecting cavity.

14. A filter apparatus, characterised in that, The filtering mechanism is provided with a filtering cavity; The slag collecting mechanism is described in any one of claims 1 to 13. ​ 15. The filter apparatus of claim 14, wherein, The filtering mechanism comprises a second shell assembly provided with the filtering cavity and a third filtering piece arranged in the filtering cavity, the third filtering piece divides the filtering cavity into a third chamber and a fourth chamber, the third chamber is located outside the fourth chamber, the second shell assembly is further provided with a first inlet and a first outlet which are in communication with the third chamber, and the second shell assembly is further provided with a second inlet and a second outlet which are in communication with the fourth chamber; wherein the first inlet is used for inputting the liquid to be filtered, the second inlet is used for inputting the flushing fluid, the second outlet is used for outputting at least part of the filtered liquid, and the first outlet is used for outputting at least the residue in the liquid to be filtered; The residue collecting port is in communication with the first outlet.

16. The filter apparatus of claim 15, wherein, The first shell assembly is further formed with a liquid collecting cavity, and the first shell assembly is further provided with a liquid discharging port and a liquid collecting port which are in communication with the liquid collecting cavity; The liquid discharging port is in communication with the first inlet, and the liquid collecting port is used for inputting the liquid to be filtered.

17. The filter apparatus of claim 16, wherein, The filtering device further comprises: A flow distribution mechanism in communication with the second inlet, the flow distribution mechanism is used for guiding the filtered liquid output from the second outlet to above the second inlet and the liquid collecting cavity, so as to use part of the filtered liquid as the flushing fluid and use another part of the filtered liquid as cleaning liquid to clean the object to be cleaned located above the liquid collecting cavity, and the liquid to be filtered after cleaning the object to be cleaned is collected to the first inlet through the liquid collecting cavity.

18. The filter apparatus of claim 16, wherein, The residue collecting mechanism further comprises: A second filtering piece arranged in the liquid collecting cavity; The filtering pore diameter of the second filtering piece is greater than the filtering pore diameter of the third filtering piece, and the filtering pore diameter of the third filtering piece is greater than the filtering pore diameter of the first filtering piece.

19. The filter apparatus of claim 16, wherein, The filtering device further comprises a second pumping assembly, which provides pumping pressure for the fourth chamber to form negative pressure in the fourth chamber, so that the liquid to be filtered flows from the third chamber to the fourth chamber.

20. The filter apparatus of claim 19, wherein, The first backflow port is in communication with the pumping path of the second pumping assembly to the second outlet.

21. The filter apparatus of claim 19, wherein, The second pumping assembly is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet is in communication with the second outlet; The filtering device further comprises: A flow distribution mechanism in communication with the first liquid outlet and the second inlet, respectively, the flow distribution mechanism is used for guiding the filtered liquid output from the second outlet and the first backflow port by the second pumping assembly to above the second inlet and the liquid collecting cavity, so as to use part of the filtered liquid as the flushing fluid and use another part of the filtered liquid as cleaning liquid to clean the object to be cleaned located above the liquid collecting cavity, and the liquid to be filtered after cleaning the object to be cleaned is collected to the first inlet through the liquid collecting cavity.

22. The filter apparatus of claim 21, wherein, The filtering mechanism and the residue collecting mechanism are arranged in a first direction, the second pumping assembly and the filtering mechanism are arranged in a second direction perpendicular to the first direction, the second pumping assembly is inclined to the liquid collecting cavity, and the flow distribution mechanism is arranged between the first shell and the second pumping assembly. The first direction is parallel to the arrangement direction of the third chamber and the fourth chamber.

23. The filter apparatus of claim 21, wherein, The filtering mechanism and the slag collecting mechanism are arranged along a first direction, and the second pumping assembly and the filtering mechanism are arranged along a second direction perpendicular to the first direction. The first direction is parallel to the arrangement direction of the third chamber and the fourth chamber.

24. A cleaning apparatus characterized by Comprising: A device body, which is formed with a cleaning cavity; The filtering device of any one of claims 14 to 23 is installed on the device body and used for filtering the to-be-filtered liquid generated by the cleaning cavity.

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