CN215738719U - Filter equipment and floor cleaning machine - Google Patents

Abstract

The application discloses a filtering device and a floor washing machine, wherein the filtering device comprises a filter, a sewage treatment mechanism and a backwashing mechanism; the filter comprises a container, a filter element arranged in the container, and a water inlet and a water outlet which are arranged on the container; the sewage treatment mechanism comprises a sewage inlet pipe and a drain pipe, wherein the sewage inlet pipe is used for guiding sewage into the container through the water inlet, and the drain pipe is used for draining water guided out from the water outlet; the back washing mechanism comprises a water inlet pipe and a drain pipe, wherein the water inlet pipe is used for guiding cleaning water into the container through the water outlet, and the drain pipe is used for draining dirt on the filter element through the water inlet. The filter is provided with the sewage treatment mechanism and the back flushing mechanism on the basis of the filter, sewage can be discharged into the filter by the sewage treatment mechanism and is discharged after being treated by the filter, and the back flushing mechanism is used for cleaning the filter and discharging dirt deposited in the filter out of the filter, so that the self-cleaning of the filter is realized, and the times of manually disassembling the filter element is reduced.

Description

Filter equipment and floor cleaning machine

Technical Field

The application relates to the technical field of filtration, especially, relate to a filter equipment and scrubber.

Background

At present, when using filter equipment to filter sewage, behind sewage got into filter equipment, the dirt can be blockked at filter equipment's filter core surface, and then flow through the delivery port by filterable clear water, and along with the lapse of time, the dirt is more and more at filter core surface accumulation, leads to filter equipment's filtration performance to constantly descend, needs the artifical filter core of frequently dismantling to wash.

SUMMERY OF THE UTILITY MODEL

The application provides a filter equipment and floor cleaning machine can reduce the manual work and dismantle the filter core and carry out abluent number of times.

In a first aspect, the present application provides a filter device comprising: the filter comprises a container, a filter element arranged in the container, and a water inlet and a water outlet which are arranged on the container; the water inlet and the water outlet are respectively positioned on two opposite sides of the filter element; the sewage treatment mechanism comprises a sewage inlet pipe and a drain pipe, wherein the sewage inlet pipe is used for guiding sewage into the container through the water inlet, and the drain pipe is used for draining water guided out from the water outlet; the back washing mechanism comprises a water inlet pipe and a drain pipe, wherein the water inlet pipe is used for leading cleaning water into the container through the water outlet, and the drain pipe is used for draining dirt on the filter element through the water inlet.

Based on above-mentioned embodiment, utilize back flush mechanism to wash the filter core, thereby wash adnexed dirt from the filter core on with the filter core, and discharge the dirt from the container through water inlet and blow off pipe, need not to dismantle the filter core and can accomplish the washing to the filter core, thereby can reduce the artifical number of times of dismantling the filter core, and the water inlet possesses into dirty and blowdown function simultaneously, the delivery port possesses out water and the function of intaking simultaneously, make and need not to set up unnecessary pipeline or passageway on the container and can realize filtering and blowdown process, and the blowdown in-process can also realize the back flush of water inlet, prevent that dirty from leading to the water inlet to block up in water inlet department attached to.

In some embodiments, the filtration device further comprises: the first gate is communicated with the sewage inlet pipe, the sewage discharge pipe and the water inlet; the first gate is used for controlling the on-off of the water inlet and the sewage inlet pipe and the on-off of the water inlet and the sewage discharge pipe; the second gate is communicated with the drain pipe, the water inlet pipe and the water outlet; the second gate is used for controlling the connection and disconnection of the water outlet and the water drainage pipe and the connection and disconnection of the water outlet and the water inlet pipe.

Based on the above embodiment, the first gate and the second gate are devices with the gating function, the first gate can enable the sewage inlet pipe and the sewage outlet pipe to be connected with the water inlet through different channels, the second gate can enable the water outlet pipe and the water inlet pipe to be connected with the water outlet through different channels, the first gate and the second gate can achieve the function of multi-directional conduction, mutual interference of sewage treatment and filter element cleaning can be avoided through switching of on-off states of the channels, and meanwhile, the filtering and sewage discharging process can be achieved by utilizing the water inlet and the water outlet without arranging redundant pipelines or channels on the container.

In some embodiments, the first gate includes a first multi-way valve including a first port in communication with the water outlet, a waste port in communication with the waste inlet pipe, and a waste port in communication with the waste pipe.

Based on the above embodiment, the first multi-channel valve has a gating function, can realize a multi-directional conduction function, and can avoid mutual interference between sewage treatment and filter element cleaning through switching of on-off states of the channels.

In some embodiments, the first gate comprises a first water pump and a second water pump, the water inlet and the sewage inlet pipe are both in communication with the first water pump, and the water inlet and the sewage drain pipe are both in communication with the second water pump.

Based on the above-mentioned embodiment, utilize first water pump can with sewage extraction and leading-in to the container in, utilize the second water pump can take out the dirt in the container to first water pump and second water pump are independent each other, can avoid advancing dirty and blowdown process mutual interference, and utilize the extraction power of first water pump and second water pump, can add fast dirty and blowdown process.

In some embodiments, the second gate includes a second multi-channel valve including a second port in communication with the outlet port, an inlet port in communication with the inlet pipe, and an outlet port in communication with the outlet pipe.

Based on the above embodiment, the second multi-channel valve has a gating function, can realize a multi-directional conduction function, and can avoid mutual interference between sewage treatment and filter element cleaning through switching of on-off states of the channels.

In some embodiments, the second gate includes a third water pump and a fourth water pump, the water outlet and the water outlet pipe are both in communication with the third water pump, and the water outlet and the water inlet pipe are both in communication with the fourth water pump.

Based on above-mentioned embodiment, utilize the third water pump can take out the sewage after filtering, utilize the fourth water pump can be with the clear water suction to the container in to the third water pump is independent each other with the fourth water pump, can avoid drainage and water inlet process mutual interference, and utilizes the extraction power of third water pump and fourth water pump, can improve out water and cleaning performance.

In some embodiments, the filtering device further includes a water outlet pipe, a first end of the water outlet pipe is communicated with the water outlet, the water outlet pipe and the water inlet pipe are both connected to a second end of the water outlet pipe, the water outlet pipe is used for guiding water guided out from the water outlet into the water outlet pipe, and the water outlet pipe is also used for guiding cleaning water guided in by the water inlet pipe into the water outlet; the water outlet is provided with a plurality of water outlets which are arranged at intervals, and all the water outlets are positioned in the port at one end, close to the container, of the water outlet pipe.

Based on above-mentioned embodiment, the delivery port passes through the outlet pipe and inlet tube and drain pipe intercommunication, and the leading-in washing water from the outlet pipe can be from a plurality of delivery ports blowout to the aperture of delivery port is less than the aperture of outlet pipe, so as to form the structure similar to the shower nozzle, thereby can improve the washing area and the impact force of washing water, in order to carry out more comprehensive washing to the filter core.

In some embodiments, the filter device further comprises a water tank, and the water inlet pipe and the water outlet pipe are both communicated with the water tank.

Based on the above embodiment, when the filter element is cleaned, cleaning water needs to be provided, sewage filtered by the filter element is discharged into the water tank to be stored, meanwhile, the filtered sewage can be used as the cleaning water to clean the filter element, extra cleaning water and a tool for storing the cleaning water are not needed, and the cost of the filtering device can be reduced.

In some embodiments, the water inlet is disposed proximate a bottom of the container.

Based on the above embodiment, the dirt discharging capability of the filter can be enhanced to prevent the dirt deposited on the bottom of the container from being discharged.

In a second aspect, the present application also provides a scrubber comprising a filter device as described in any of the embodiments above.

The beneficial effect of this application does: through set up sewage treatment mechanism and back flush mechanism on the basis of filter, utilize sewage treatment mechanism can be with sewage discharge to the filter in, and the sewage discharge after the filter is handled, utilize back flush mechanism to be used for wasing the filter, and with the filter of sedimentary dirt discharge filter in the filter, with the self-cleaning of realization filter, thereby reduce the number of times of the artifical filter core of dismantling the filter, promote user experience, and the water inlet possesses dirty and blowdown function simultaneously, the delivery port possesses the play water simultaneously and intakes the water function, make and need not to set up unnecessary pipeline or passageway on the container and can realize filtering and blowdown process, the blowdown in-process can also realize the back flush to the water inlet, prevent that dirty attached to water inlet department from leading to the water inlet to block up.

Drawings

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

FIG. 1 is a schematic structural diagram of a filter device according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a filter device according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a filter device according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a filter device according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a filter device according to an embodiment of the present disclosure;

fig. 6 is a schematic arrangement diagram of water outlets on a container in an embodiment of the present application.

Reference numerals:

10. a filter; 11. a container; 12. a filter element; 13. a water inlet; 14. a water outlet; 21. a sewage inlet pipe; 22. a blow-off pipe; 23. a drain pipe; 24. a water inlet pipe; 25. a water outlet pipe; 30. a first gate; 31. a first multi-channel valve; 311. a first interface; 312. a sewage inlet interface; 313. a sewage draining interface; 32. a first water pump; 33. a second water pump; 40. a second gate; 41. a second multi-channel valve; 411. a second interface; 412. a water inlet interface; 413. a water outlet interface; 42. a third water pump; 43. a fourth water pump; 50. a water tank; 60. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the application provides a filter equipment and floor scrubber to when being used for solving and using filter equipment to filter sewage at present, need artifical frequent dismantlement filter core to carry out abluent problem.

The application provides a filter equipment, as shown in fig. 1 to fig. 3, filter equipment includes filter 10, sewage treatment mechanism and back flush mechanism, filter equipment can be applied to domestic water purifier, sewage treatment plant or floor cleaning machine etc. and need carry out the occasion of sewage filtration.

Wherein, the filter 10 is used for filtering sewage; the sewage treatment mechanism is used for discharging sewage into the filter 10 and discharging clean water treated by the filter 10; the backwash mechanism is used to reverse the filter 10 and drain the deposited dirt from the filter 10 out of the filter 10 to self-clean the filter 10, thereby reducing the number of manual operations to disassemble the filter element 12 of the filter 10 and improving the user experience.

Specifically, the filter 10 includes a container 11, a filter element 12 disposed in the container 11, and a water inlet 13 and a water outlet 14 disposed on the container 11; the water inlet 13 and the water outlet 14 are respectively located on two opposite sides of the filter element 12, such as the left side and the right side of the filter element 12 in fig. 1 to 3.

It can be understood that the water inlet 13 and the water outlet 14 are both communicated with the container 11, when the filter 10 is used for filtering sewage, the sewage enters the container 11 through the water inlet 13 on one side of the filter element 12, the filter element 12 is used for filtering the sewage, suspended particles and other dirt in the sewage are blocked on the surface by the filter element 12, and clean water processed by the filter element 12 is discharged from the container 11 through the water outlet 14.

Wherein, filter core 12 can be for paper filter core 12, chemical fibre filter core 12, ceramic filter core 12 or resin filter core 12 etc. and the kind of filter core 12 can be selected according to filter equipment's application occasion and actual need, and this application does not do the restriction, and the concrete theory of operation of filter core 12 has earlier disclosed in prior art, and here is not repeated.

In order to facilitate the introduction of the sewage into the container 11 and the discharge of the clean water filtered by the filter 12 in the container 11, the sewage treatment mechanism of the embodiment of the present application includes a sewage inlet pipe 21 for introducing the sewage into the container 11 through the water inlet 13, and a water outlet pipe 23 for discharging the water introduced from the water outlet 14.

The sewage inlet pipe 21 is connected to the water inlet 13, the drain pipe 23 is connected to the water outlet 14, the sewage is introduced into the container 11 through the sewage inlet pipe 21 and the water inlet 13, and the clean water filtered by the filter element 12 is discharged from the container 11 through the water outlet 14 and the drain pipe 23.

It will be appreciated that during the treatment of contaminated water in the filter 10, over time, the surface of the filter element 12 becomes increasingly fouled, which results in a progressive reduction in the filtration performance of the filter element 12.

In order to reduce the number of times of disassembling and cleaning the filter element 12, the back washing mechanism of the embodiment of the present application includes a water inlet pipe 24 for guiding the cleaning water into the container 11 through the water outlet 14, and a sewage discharge pipe 22 for discharging the dirt on the filter element 12 through the water inlet 13.

Wherein, inlet tube 24 is connected with delivery port 14, blow off pipe 22 is connected with water inlet 13, when wasing filter core 12, sewage treatment mechanism stop work, can utilize inlet tube 24 to wash leading-in to delivery port 14 department of water this moment, wash water and rush into container 11 through delivery port 14, in order to wash filter core 12, thereby wash adnexed dirt on the filter core 12 from filter core 12, and discharge the dirt from container 11 through water inlet 13 and blow off pipe 22, need not to dismantle filter core 12 and can accomplish the washing to filter core 12, thereby can reduce the number of times of artifical dismantlement filter core 12, promote user experience.

It should be further noted that the water inlet 13 has the functions of sewage inlet and sewage discharge, and the water outlet 14 has the functions of water outlet and water inlet, so that the filtering and sewage discharge process can be realized without arranging redundant pipelines or channels on the container 11, and the back flushing of the water inlet 13 can be realized in the sewage discharge process, thereby preventing the water inlet 13 from being blocked due to the attachment of dirt to the water inlet 13.

It should be noted that fig. 1 to 3 only illustrate the case where the filter 10 includes only one water inlet 13 and one water outlet 14.

In practical application, the filter 10 may also include a plurality of water inlets 13 and a plurality of water outlets 14, taking the filter 10 including 2 water inlets 13 and 2 water outlets 14 as an example, at this time, the sewage inlet pipe 21 and the sewage discharge pipe 22 may be both communicated with the two water inlets 13, and the drain pipe 23 and the water inlet pipe 24 may be both communicated with the two water outlets 14, so as to increase the sewage inlet and discharge capacity by increasing the number of the water inlets 13 and the water outlets 14.

In order to enhance the dirt discharge capability of the filter 10, in an embodiment of the present application, the water inlet 13 may be further disposed near the bottom of the container 11 to prevent dirt deposited on the bottom of the container 11 from being discharged; the water outlet 14 may be disposed near the center or near the top of the container 11, and the cleaning water may clean the filter element 12 from top to bottom, so as to improve the cleaning ability and cleaning area of the filter element 12.

In an embodiment of the present application, as shown in fig. 1 to 5, the filtering apparatus further includes a first gate 30 and a second gate 40.

Wherein the first gate 30 is communicated with the sewage inlet pipe 21, the sewage outlet pipe 22 and the water inlet 13; the first gate 30 is used for controlling the connection and disconnection between the water inlet 13 and the sewage inlet pipe 21, and the connection and disconnection between the water inlet 13 and the sewage outlet pipe 22.

The second gate 40 is communicated with the drain pipe 23, the inlet pipe 24 and the outlet 14; the second gate 40 is used for controlling the on-off of the water outlet 14 and the water outlet pipe 23, and the on-off of the water outlet 14 and the water inlet pipe 24.

It should be noted that, in fig. 1 to 5, the direction indicated by the arrow is the water flowing direction, when filtering sewage, the sewage inlet pipe 21 is connected to the water inlet 13, the water outlet pipe 23 is connected to the water outlet 14, the sewage discharge pipe 22 is disconnected from the water inlet 13, the water inlet pipe 24 is disconnected from the water outlet 14, at this time, sewage sequentially passes through the sewage inlet pipe 21 and the water inlet 13 and then enters the container 11, and then the filtered clean water sequentially passes through the water outlet 14 and the water outlet pipe 23 and is discharged from the container 11.

When the filter 10 is cleaned, the water inlet pipe 24 is communicated with the water outlet 14, the sewage discharge pipe 22 is communicated with the water inlet 13, the sewage inlet pipe 21 is disconnected with the water inlet 13, the water outlet pipe 23 is disconnected with the water outlet 14, cleaning water sequentially passes through the water inlet pipe 24 and the water outlet 14 and enters the container 11, dirt on the filter element 12 is cleaned by the cleaning water, and the dirt is sequentially discharged from the container 11 through the water inlet 13 and the sewage discharge pipe 22.

In short, the first gate 30 and the second gate 40 are devices having a gate function, the first gate 30 can connect the sewage inlet pipe 21 and the sewage outlet pipe 22 with the water inlet 13 through different channels, the second gate 40 can connect the water outlet pipe 23 and the water inlet pipe 24 with the water outlet 14 through different channels, the first gate 30 and the second gate 40 can realize a multi-way conduction function, and through switching of the on-off state of each channel, mutual interference between sewage treatment and cleaning of the filter element 12 can be avoided, and meanwhile, the water inlet 13 and the water outlet 14 are utilized to realize filtering and sewage discharge processes without arranging redundant pipelines or channels on the container 11.

In the embodiment of the present application, the first gate 30 and the second gate 40 may be a valve or a water pump.

In one embodiment, as shown in fig. 1, the first gate 30 comprises a first multi-way valve 31, and the first multi-way valve 31 comprises a first interface 311 communicated with the water outlet 14, a sewage inlet 312 communicated with the sewage inlet pipe 21, and a sewage outlet 313 communicated with the sewage outlet pipe 22; the first multi-channel valve 31 has a gating function, can realize a multi-directional conduction function, and can avoid mutual interference of sewage treatment and filter element cleaning through switching of on-off states of all channels.

The second gate 40 includes a second multi-way valve 41, and the second multi-way valve 41 includes a second port 411 communicating with the water outlet 14, a water inlet port 412 communicating with the water inlet pipe 24, and a water outlet port 413 communicating with the water outlet pipe 23; the second multi-channel valve 41 has a gating function, can realize a multi-directional conduction function, and can avoid mutual interference between sewage treatment and filter element cleaning through switching of on-off states of all channels.

When sewage is treated, the sewage inlet port 312 is communicated with the first port 311, the second port 411 is communicated with the water outlet port 413, the sewage discharge port 313 is disconnected with the first port 311, the second port 411 is disconnected with the water inlet port 412, and the sewage flows through the sewage inlet pipe 21, the sewage inlet port 312, the first port 311, the water inlet 13, the filter element 12, the water outlet 14, the second port 411, the water outlet port 413 and the water outlet pipe 23 in sequence.

When the filter element 12 is cleaned, the second connector 411 is connected with the water inlet connector 412, the sewage draining connector 313 is connected with the first connector 311, the second connector 411 is disconnected with the water outlet connector 413, the sewage inlet connector 312 is disconnected with the first connector 311, and cleaning water sequentially flows through the water inlet pipe 24, the water inlet connector 412, the second connector 411, the water outlet 14, the filter element 12, the water inlet 13, the first connector 311, the sewage draining connector 313 and the sewage draining pipe 22.

It should be noted that the multi-channel valve is a valve having multiple channels, and a specific working principle of the multi-channel valve is disclosed in the prior art for a long time, and details are not described here, the first multi-channel valve 31 or/and the second multi-channel valve 41 may be specifically electromagnetic valves, and the first multi-channel valve 31 or/and the second multi-channel valve 41 may be more specifically two-in one-out electromagnetic valves, so that switching of each channel in the first multi-channel valve 31 and the second multi-channel valve 41 can be realized by electrical control, which is more convenient and faster.

In another embodiment, as shown in fig. 2, the first gate 30 includes a first water pump 32 and a second water pump 33, the first water pump 32 is in communication with the water inlet 13 and the sewage inlet pipe 21, and the second water pump 33 is in communication with the water inlet 13 and the sewage outlet pipe 22. The sewage may be pumped and introduced into the container 10 by the first water pump 32, the dirt in the container 10 may be pumped out by the second water pump 33, and the first water pump 32 and the second water pump 33 are independent from each other, so that the processes of the sewage intake and the sewage discharge may be prevented from interfering with each other, and the processes of the sewage intake and the sewage discharge may be accelerated by the pumping force of the first water pump 32 and the second water pump 33.

The second gate 40 includes a third water pump 42 and a fourth water pump 43, the third water pump 42 is communicated with the water outlet 14 and the water discharge pipe 23, and the fourth water pump 43 is communicated with the water outlet 14 and the water inlet pipe 24. The sewage after filtration can be pumped out by the third water pump 42, the clean water can be pumped into the container 10 by the fourth water pump 43, the third water pump 42 and the fourth water pump 43 are mutually independent, mutual interference between the drainage and water inlet processes can be avoided, and the water outlet and cleaning capacity can be improved by the pumping force of the third water pump 42 and the fourth water pump 43.

When sewage is treated, the first water pump 32 and the third water pump 42 are in a working state, the second water pump 33 and the fourth water pump 43 are in a closed state, the first water pump 32 discharges the sewage into the container 11 through the water inlet 13, and the filtered clean water is pumped out through the water outlet 14 by the third water pump 42.

When the filter element 12 is cleaned, the second water pump 33 and the fourth water pump 43 are in an operating state, the first water pump 32 and the third water pump 42 are in a closed state, the fourth water pump 43 flushes the cleaning water into the container 11 through the water outlet 14, and dirt in the container 11 is pumped out through the water inlet 13 by the second water pump 33.

It should be noted that fig. 1 and 2 only illustrate the solution that the first gate 30 and the second gate 40 both include a multi-channel valve or a water pump, and in other embodiments, one of the first gate 30 and the second gate 40 may be configured to include a multi-channel valve, and the other of the first gate 30 and the second gate 40 may be configured to include two water pumps.

As shown in fig. 3, it may be arranged that the first gate 30 includes the first multi-channel valve 31, and the second gate 40 includes the third water pump 42 and the fourth water pump 43.

As shown in fig. 4, it may be arranged that the first gate 30 includes the first water pump 32 and the second water pump 33, and the second gate 40 includes the second multi-channel valve 41.

When the filter element 12 is cleaned, cleaning water needs to be provided, in an embodiment of the present application, as shown in fig. 5, the filter device further includes a water tank 50, the water inlet pipe 24 and the water outlet pipe 23 are both communicated with the water tank 50, the clean water filtered by the filter element 12 is discharged into the water tank 50 for storage, and meanwhile, the filter element 12 can be cleaned by using the filtered clean water as the cleaning water, so that additional cleaning water and a tool for storing the cleaning water are not required to be provided, and the cost of the filter device can be reduced.

As shown in fig. 6, in an embodiment, the filtering apparatus further includes a water outlet pipe 25, a first end of the water outlet pipe 25 is communicated with the water outlet 14, the water outlet pipe 23 and the water inlet pipe 24 are both connected to a second end of the water outlet pipe 25, the water outlet pipe 25 is used for guiding the water guided by the water outlet 14 into the water outlet pipe 23, and the water outlet pipe 25 is further used for guiding the washing water guided by the water inlet pipe 24 into the water outlet 14.

The water outlets 14 are provided in a plurality, the water outlets 14 are spaced at intervals, and all the water outlets 14 are located in a port of one end of the water outlet pipe 25 close to the container 11.

It can be understood that the water outlet 14 is communicated with the water inlet pipe 24 and the water outlet pipe 23 through the water outlet pipe 25, the washing water introduced from the water outlet pipe 25 can be sprayed from the plurality of water outlets 14, and the aperture of the water outlet 14 is smaller than that of the water outlet pipe 25 to form a structure similar to a spray head, so that the washing area and the impact force of the washing water can be increased to more completely wash the filter element 12.

In order to further improve the cleaning effect, the water outlet 14 may be provided as a micro-hole having a small aperture, and the plurality of water outlets 14 are uniformly distributed to form a structure similar to a shower head, so that the impact force and the cleaning area of the cleaning water ejected from the water outlet 14 may be further improved to further improve the cleaning effect.

Based on above-mentioned filter equipment, this application still provides a scrubber, the scrubber includes as in any embodiment above filter equipment, the kind of scrubber includes but not limited to semi-automatic scrubber, full-automatic scrubber, hand propelled scrubber or driving scrubber etc..

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A filter device, comprising:

the filter comprises a container, a filter element arranged in the container, and a water inlet and a water outlet which are arranged on the container; the water inlet and the water outlet are respectively positioned on two opposite sides of the filter element;

the sewage treatment mechanism comprises a sewage inlet pipe and a drain pipe, wherein the sewage inlet pipe is used for guiding sewage into the container through the water inlet, and the drain pipe is used for draining water guided out from the water outlet;

the back washing mechanism comprises a water inlet pipe and a drain pipe, wherein the water inlet pipe is used for leading cleaning water into the container through the water outlet, and the drain pipe is used for draining dirt on the filter element through the water inlet.

2. The filtration device of claim 1, further comprising:

the first gate is communicated with the sewage inlet pipe, the sewage discharge pipe and the water inlet; the first gate is used for controlling the on-off of the water inlet and the sewage inlet pipe and the on-off of the water inlet and the sewage discharge pipe;

the second gate is communicated with the drain pipe, the water inlet pipe and the water outlet; the second gate is used for controlling the connection and disconnection of the water outlet and the water drainage pipe and the connection and disconnection of the water outlet and the water inlet pipe.

3. The filtration device of claim 2, wherein the first gate includes a first multi-way valve including a first port in communication with the water outlet, a dirt inlet port in communication with the dirt inlet pipe, and a dirt discharge port in communication with the dirt discharge pipe.

4. The filtration apparatus of claim 2, wherein the first gate includes a first water pump and a second water pump, the water inlet and the sewage inlet pipe are both in communication with the first water pump, and the water inlet and the sewage outlet pipe are both in communication with the second water pump.

5. The filtration device of claim 3 or 4, wherein the second gate comprises a second multi-channel valve comprising a second port in communication with the outlet port, an inlet port in communication with the inlet tube, and an outlet port in communication with the outlet tube.

6. The filtration device of claim 3 or 4, wherein the second gate comprises a third water pump and a fourth water pump, the water outlet and the water outlet pipe are both in communication with the third water pump, and the water outlet and the water inlet pipe are both in communication with the fourth water pump.

7. The filtering device according to claim 1, further comprising a water outlet pipe, wherein a first end of the water outlet pipe is communicated with the water outlet, the water outlet pipe and the water inlet pipe are both connected with a second end of the water outlet pipe, the water outlet pipe is used for guiding water guided out from the water outlet into the water outlet pipe, and the water outlet pipe is also used for guiding cleaning water guided in by the water inlet pipe into the water outlet;

the water outlet is provided with a plurality of water outlets which are arranged at intervals, and all the water outlets are positioned in the port at one end, close to the container, of the water outlet pipe.

8. The filtration device of claim 1, further comprising a water tank, wherein the inlet tube and the drain tube are both in communication with the water tank.

9. The filtration device of claim 1, wherein the water inlet is disposed proximate a bottom of the vessel.

10. A floor washing machine, characterized in that it comprises a filter device according to any one of claims 1-9.

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