CN219792748U - Self-flushing filtering system - Google Patents

Abstract

The utility model relates to a self-flushing filtration system, which comprises a plurality of self-flushing filtration devices which are communicated in sequence, wherein the self-flushing filtration device comprises: the tank body comprises an inner wall and an outer wall opposite to the inner wall, the inner wall defines a first channel, the outer wall protrudes outwards to form a protruding part, and the protruding part is provided with a sewage outlet communicated with the first channel; the filter plate is obliquely arranged in the first channel and connected with the inner wall; the valve is used for controlling the opening and closing of the sewage outlet and comprises a first plate connected with the protruding part and a second plate hinged with the first plate; the overflow pipeline comprises an overflow hole arranged on the inner wall of the tank body, and the overflow pipeline is provided with a water outlet; the rocker comprises a first end hinged with the outer wall, a second end abutting against the second plate and a third end positioned below the water outlet; wherein, the filtration precision of a plurality of filter plates increases progressively. The self-flushing filtration system provided by the utility model has the advantages of multistage flushing filtration, high filtration precision and efficiency and low use and maintenance cost.

Description

Self-flushing filtering system

Technical Field

The utility model relates to the field of environmental protection, in particular to a self-flushing filtration system.

Background

The self-cleaning filter technology is a novel filter technology developed at the end of the 70 th century of the 20 th century, has the main advantages of self-operation and self-cleaning by using water pressure, does not stop filtering during cleaning, and has the following characteristics compared with the traditional filter: the degree of automation is high; the pressure loss is small; the filter residue is not required to be manually removed. The self-cleaning filter is suitable for separating and filtering in industrial, agricultural, municipal, sea water desalting process and the like.

The self-cleaning filter is a precise device which directly intercepts impurities in water by utilizing a filter screen, removes suspended matters and particulate matters in water, reduces turbidity, purifies water quality, reduces system dirt, bacteria and algae, rust and the like, so as to purify water quality and protect other equipment of the system, water enters the self-cleaning filter body from a water inlet, and the system can automatically identify the deposition degree of the impurities due to the design of intellectualization (PLC and PAC), so that the signal of a sewage disposal valve is automatically and fully discharged.

Currently, automatic filters are mainly siphon backflushed or flushed by a water pump. The siphon backflushing is that the inner layer impurities of a fine filter screen of the automatic flushing filter device are gradually accumulated, a pressure difference is gradually formed between the inner side and the outer side, a control valve is opened to control the sewage to be discharged after the pressure difference reaches a preset value, and a filter with the flow of 300m3/h is taken as an example: the back flushing flow is 35-40 m3/h, the back flushing time is 7-15 seconds, the back flushing water amount is 80-160L, water resources are wasted, in addition, a pump is required to be controlled for flushing by using a water pump, the self-flushing filtering and water pump equipment is complex, the cost is high, and periodic overhauling and maintenance are required.

Disclosure of Invention

In view of the above, the present utility model aims to solve at least one of the technical problems in the related art to some extent. An object of the present utility model is to propose a self-flushing filtration system comprising a plurality of self-cleaning filtration devices (100), said self-cleaning filtration devices (100) comprising: a tank (10), the tank (10) comprising an inner wall (11) and an outer wall (12) opposite the inner wall (11), the inner wall (11) defining a first channel (13), the outer wall (12) protruding outwardly forming a protrusion (121), the protrusion (121) having a drain (121 a), the drain (121 a) being in communication with the first channel (13); -a filter plate (20), said filter plate (20) being arranged obliquely in said first channel (13) and being connected to said inner wall (11), said filter plate (20) having a first top surface (21), the lowest point of said first top surface (21) being not higher than said protrusion (121); a valve (30), wherein the valve (30) is used for controlling the opening and closing of the sewage outlet (121 a) and comprises a first plate (31) connected with the protruding part (121) and a second plate (32) hinged with the first plate (31); an overflow pipe (40), wherein the overflow pipe (40) comprises an overflow hole (17) arranged on the inner wall (11) of the tank body, and the overflow pipe (40) is provided with a water outlet (41); -a rocker (50), said rocker (51) comprising a first end (511) hinged to said outer wall (12), a second end (521) abutting against said second plate (32) and a third end (531) located below said water outlet (41); and an elastic member (60), wherein one end of the elastic member (60) is connected with the rocker (50), and the other end is connected with the tank body (10); wherein the plurality of self-cleaning filter devices (100) are connected end to end in sequence and the filter precision of the filter plates (20) of the plurality of self-cleaning filter devices (100) increases from front to back.

For each self-flushing filter device (100), after the water level in the tank body (10) continuously rises after the filter plate (20) is blocked, water flows to the third end (531) of the rocker (50) from the water outlet (41) of the overflow pipeline (40) after flowing through the overflow hole (17), a lever structure is formed between the third end (531) of the rocker (50) and the first end (511) and the elastic piece (60), the elastic piece (60) serves as a fulcrum, the second end (521) of the rocker (50) is not contacted with the second plate (32) any more due to the impact of the water flow on the third end (531), the water flow in the tank body (10) pushes up the second plate (32) to flow out from the opening of the protruding part (121), the water flow plays a role of flushing the filter plate (20) when flowing out from the first top surface (21) of the filter plate (20), the second plate (32) is pushed up to the second end (521) of the rocker (50) to the initial position after flowing out, the self-weight flushing can be completed by the device, a plurality of self-flushing devices can be arranged, the waste of the self-flushing filter devices (100) can be reduced, the water waste can be reduced, the filtering precision can be reduced, and the filtering precision can be increased, and the filtering precision can be improved. The self-flushing filtering system (500) provided by the utility model has the advantages of simple structure, low equipment manufacturing, using and maintaining cost and small water consumption for flushing the filtering plate.

In some embodiments, the plurality of self-flushing filtration devices (100) are arranged at intervals along the circumferential direction of the tank body (10), and the arrangement is beneficial to reasonably distributing and fully utilizing the space in the circumferential direction of the multi-stage flushing filtration system, so that the system is compact in structure.

In some embodiments, the rocker (50) comprises a hinge portion (51), the hinge portion (51) is provided with a first end (511) and a fourth end (512) opposite to the first end (511), the fourth end (512) protrudes upwards to extend out of the side arm (52), the fourth end (512) further comprises a pressing plate (53) protruding downwards and extending rightwards, the top of the side arm (52) is a second end (521), one end, far away from the tank (10), of the pressing plate (53) is a third end (531), and the hinge portion (51), the side arm (52) and the pressing plate (53) of the rocker (50) are designed, so that a lever structure is formed between the first end (511) and the third end (531), and the opening and closing of the valve (30) are controlled by the second end (521) is simple in structure.

In some embodiments, the second end (521) includes a second top surface (521 a) that is obliquely disposed, an included angle between the second top surface (521 a) and a horizontal plane is between (30 ° -45 °), the second top surface (521 a) is higher on the left and lower on the right, an inclined surface is disposed to facilitate the second plate (32) to smoothly squeeze out the second end (521) to return to a position connected with the first plate (31), and when the angle is too large, the downward moving distance of the rocker (50) is increased, which is not beneficial to the reset of the second plate (32) by self-weight, and when the angle is too small, there is a risk that the second end (521) is not locked to the second plate (32).

In some embodiments, the rocker (50) includes a connection portion (513) between the first end (511) and the fourth end (512), the elastic member (60) is connected to the connection portion (513), and the fulcrum is far away from the third end (531), so as to facilitate increasing the distance between the third end (531) and the fulcrum, and the lever is far away from the impulse of the amplified water flow, so that the sensitivity of the device is improved.

In some embodiments, the second plate (32) includes a bonding surface (321) connected to the first plate (31), and the bonding surface (321) protrudes toward the first plate (31) to form a sealing portion (321 a), where the sealing portion is beneficial to seal the valve (30) so as to avoid sewage leakage in the tank body (10) from polluting the environment.

In some embodiments, the outer wall (12) includes a hinge support (15) extending rightward from the outer wall (12) in a horizontal direction, the first end (511) being hinged to the hinge support (15) to facilitate the hinge (51) being hinged to the outer wall (12) of the can (10).

In some embodiments, the outer wall (12) includes a supporting portion (16) extending rightward from the outer wall (12) in a horizontal direction, one end of the elastic member (60) is disposed on the supporting portion (16), the supporting portion (16) is disposed, and the elastic member (60) is vertically disposed between the supporting portion (60) and the rocker (50), so that an elastic force of the elastic member (60) acts on the rocker (50).

In some embodiments, the included angle between the filter plate (20) and the horizontal plane is between (20 ° -45 °), when the angle is too large, the filter holes of the filter plate (20) are more close to extend along the horizontal direction, are easily blocked by sundries and are not easy to wash, and when the angle is too small, the water flow rate is too small and the washing effect is poor.

In some embodiments, the angle between the surface of the protrusion (121) connected to the first plate (31) and the horizontal plane is between (70 ° -90 °), the smaller the inclination angle is, the greater the gravity of the second plate (32) needs to be overcome, which is unfavorable for opening the valve (30), and the second end (521) cannot play a trivial role after the angle exceeds 90 °, so that the water flow directly rushes out of the valve (30).

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional features and advantages of the utility model are described in the following description, which explains the utility model in more detail based on embodiments with reference to the drawings.

Fig. 1 is a schematic view of a self-flushing filtration system in a normal filtration state according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of the self-flushing filtration system according to the embodiment of the present utility model when the device is in the self-flushing state after the valves are opened.

Fig. 3 is a schematic view of a part of the structure of a self-flushing filtration system according to an embodiment of the present utility model when the movable plate is reset.

Fig. 4 is an enlarged view of section c.

Fig. 5 is an enlarged view of the portion d.

Fig. 6 is a top view of a self-flushing filtration system in accordance with an embodiment of the present utility model.

Reference numerals illustrate:

500-self-flushing filtration system;

100-self-flushing filtration device, 100 a-primary self-flushing filtration device, 100 b-secondary self-flushing filtration device, 100 c-advanced self-flushing filtration device;

10-a tank body, 11-an inner wall, 12-an outer wall, 121-a protruding part, 121 a-a sewage outlet, 13-a filtering channel, 14-a purified water outlet, 15-a hinged supporting part, 16-a supporting part and 17-an overflow hole;

20-filter plate, 21-top, 22-bottom, 20 a-primary filter plate, 20 b-secondary filter plate, 20 c-advanced filter plate;

30-valve, 31-fixed plate, 32-movable plate, 321-joint surface, 321 a-sealing part;

40-overflow pipeline, 41-water outlet;

50-rocker, 51-hinge, 511-left end, 512-center, 513-connection, 52-side arm, 521-top, 521 a-top, 521 b-side, 53-platen, 531-right end;

60-elastic member.

Detailed Description

Preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower", "left", "right", "front", "rear" and the like are used herein for illustrative purposes only and are not limiting of the present utility model.

As shown in fig. 1, an embodiment of the present utility model provides a self-flushing filtration system 500 comprising three self-flushing filtration devices 100, the self-flushing filtration devices 100 comprising:

a tank 10, the tank 10 including an inner wall 11 and an outer wall 12 opposite to the inner wall 11, the inner wall 11 defining a first passage 13, the outer wall 12 protruding outward to form a protrusion 121, the tank 10 being open at the top, sewage with suspended matter being injected into a filtering passage (as an example of the first passage) 13 from the open at the top of the tank 10, the protrusion 121 having a drain 121a, the drain 121a communicating with the filtering passage 13;

the filter plate 20, in this embodiment, the self-flushing filtration system 500 includes three self-flushing filtration devices 100, the filter plates 20 of the three self-flushing filtration devices are sequentially filter plates 20a, 20b and 20c from top to bottom, in terms of filtration precision, the filter plate 20a is the lowest, the filter plate 20b is the next highest, the filter plate 20c has the highest filtration precision, herein collectively called the filter plate 20, the filter plate 20 is provided with a plurality of filtration pores, the filter plate 20 is obliquely arranged in the filtration channel 13 and connected with the inner wall 11, water flows from the filtration pores of the filter plate into the filtration channel bottom, the filter plate 20 has a top surface 21 (as an example of a first top surface), and the lowest point of the top surface 21 is not higher than the protrusion 121;

the valve 30, the said valve 30 is used for controlling the opening and closing of the said drain 13, the said valve plate 30 includes the fixed plate 31 (as an example of the first board) connected with said protruding portion 121 and hinged movable plate 32 (as an example of the second board) with said fixed plate 31, the centre opening of the fixed plate 31 is used for communicating the filtering channel 13, the fixed plate 31 is attached to the protruding portion 121, the top of the movable plate 32 is hinged with top of the fixed plate 31 to form the valve, the movable plate can rotate along the hinge, thus realize opening and closing of the valve, further, the water flow can flow out from the drain of the protruding portion after the valve is opened;

an overflow line 40, said overflow line 40 comprising an overflow aperture 17 provided on said inner wall 11, said overflow line having a water outlet 41;

a rocker 50, the rocker 50 including a left end 511 hinged to the outer wall 12 (as an example of a first end), a top end 521 abutting against the fixing plate 32 (as an example of a second end), and a right end 531 located below the water outlet (as an example of a third end), the top end 521 including a top surface 521a disposed obliquely (as an example of a second top surface); a kind of electronic device with high-pressure air-conditioning system

And an elastic member 60 having two ends, one end connected to the other end of the rocker 50 and connected to the can body (10), the elastic member being connected to a portion between the left end 511 and the right end 531 of the rocker 50 and supporting the rocker, forming a lever structure.

The self-flushing filtration system of the utility model is provided with the protruding part 121 for blocking the opening of the valve 30, a lever structure is formed among the rocker 50, the outer wall 12 and the elastic piece 60, the rocker 50 and the overflow pipeline 40 are matched with control of opening and closing of the valve 30, after the valve 30 is closed, the movable plate 32 is abutted against the second end 521, and the second end of the rocker can limit the movable plate 32. After the filter plate 20 is washed, the movable plate 32 contacts with the top end 521 in the process of recovering to the initial position by means of self weight, and the top end 521 moves under the pressure of the movable plate 32 until the movable plate 32 is completely recovered to the initial position, so that the self-washing of the device is completed.

Wherein, the filtration passageway 13 of three self-cleaning filter device 100 end to end in proper order and the filtration precision of the filter 20 of three self-cleaning filter device 100 progressively increases step by step, primary self-cleaning filter device's filtration passageway's bottom and secondary self-cleaning filter device's top intercommunication, secondary self-cleaning filter device's filtration passageway bottom is connected with advanced self-cleaning filter device's filtration passageway top, set up three self-cleaning filter device's filtration passageway and connect gradually and form tertiary self-cleaning filter mechanism, the rivers get into secondary filter device after the primary filtration is accomplished, get into advanced filter device after secondary filter device filters, finally flow out in the clean water export of follow system, realize the purification filtration to rivers.

As shown in fig. 1, the rocker 50 includes a hinge portion 51, the hinge portion 51 has a left end 511 and a central portion 512 (as an example of a fourth end) opposite to the first end 511, the central portion 512 protrudes upward to extend out of the side arm 52, the central portion 512 further includes a pressing plate 53 protruding downward and extending rightward, the top of the side arm 52 is a top end 521, the top end includes a top surface 521a and a side surface 521b angled with respect to the top surface 521a, the side surface 521b abuts against the fixing plate 32, and an end of the pressing plate 53 remote from the can 10 is a right end 531. The rocker 50 further includes a connection portion 513 between the left end 511 and the center portion 512, and the elastic member 60 is connected to the connection portion 513

As shown in fig. 2 and 3, the movable plate 32 includes a joint surface 321 connected to the fixed plate 31, and the joint surface 321 protrudes toward the fixed plate 31 to form a sealing portion 321a, where the sealing portion 321a is beneficial to sealing the valve 30, so as to avoid sewage leakage in the tank 10 from polluting the environment.

After the water level in the tank body drops, the movable plate 32 returns to the position where the movable plate is attached to the fixed plate initially under the action of self gravity, at this time, no water flow exists in the overflow pipeline, the side arm of the movable plate is blocked on the path where the movable plate is restored to the attached state with the fixed plate under the action of the elastic member, the bottommost part of the movable plate contacts with the top surface 521a of the side arm in the moving process, and the side arm is pushed by the self gravity to push the top surface 521a to drive the side arm to move downwards until the movable plate is attached to the fixed plate, the side arm is not pressed downwards by the movable plate any more, the elastic member bounces the side arm upwards, the movable plate is abutted to the side surface 521b, in this embodiment, the movable plate pushes the plate 50 downwards to be reset finally under the action of the side surface 521a, and the angle of the top surface 521a is limited, as shown in fig. 4, the proper included angle alpha 1 between the top surface 521a and the horizontal plane is 30 ° -45 °, the angle of 30 °,31 °,32 °, 33 °, 34 °, 35 °, 36 °, 37 °, 38 °, 39 °, 40 °,41 °, 42 °, 43 °, 44 °, 45 °, and when the angle of the top surface a is too high, the right side surface is not pushed by the movable plate is too long, the desired to be moved too long, and the movable plate is not easy to be moved to the movable plate is expected to move down, and the movable plate is not easy to move down, and the movable plate is greatly to be moved to the movable plate is attached to the side surface is a large, and the movable plate is expected to the side surface is a small angle is a large, and is attached to the movable plate is attached to the side.

As shown in fig. 5, the elastic member 60 is connected between the left end 511 and the central portion 512 of the rocker, and the elastic member 60 supports the rocker 50 on the hinge portion, so that the pivot is far away from the pressing plate 53, increasing the distance between the right end 531 and the pivot, and increasing the impact force of water flow, which is beneficial to improving the sensitivity of the device.

As shown in fig. 4, the outer wall 12 includes a hinge support portion 15 extending outwardly from the outer wall 13 in a horizontal direction, and the left end 511 is hinged to the hinge support portion 15. The outer wall 12 further includes a support portion 16 extending outwardly from the outer wall in a horizontal direction, and the other end of the elastic member is disposed on the support portion 16.

As shown in fig. 1, the inclination angle of the filter plate should be limited, the proper range of the included angle α2 between the filter plate and the horizontal plane is (20 ° -45 °), the angle of α2 may be 20 °,21 °,22 °, 23 °, 24 °, 25 °, 26 °, 27 °, 28 °, 29 °, 30 °,31 °,32 °, 33 °, 34 °, 35 °, 36 °, 37 °, 38 °, 39 °, 40 °,41 °, 42 °, 43 °, 44 °, 45 °, and the inclination angle is too large, and the valve may be rapidly drained after opening, but the larger the inclination angle, the closer the filter hole is to the extension in the horizontal direction, the smaller the water passing area in the vertical direction, the filter hole is blocked by impurities, the drainage efficiency is too low after opening the inclination angle is too small, and the angle of α2 is 21 ° in the present embodiment, so that the flushing effect is not good.

The protruding part is arranged on the surface connected with the fixed plate in an inclined manner, the movable plate is arranged on the fixed plate in parallel, the acting force applied by the movable plate to the side arm under the action of water pressure does not contain downward component force, the limit of the side arm to the valve is realized, the inclination angle of the protruding part connected with the fixed plate is limited, the proper angle of the included angle alpha 3 between the protruding part and the horizontal plane is between (70 DEG-90 DEG), the angle of alpha 3 can be 70 DEG, 71 DEG, 72 DEG, 73 DEG, 74 DEG, 75 DEG, 76 DEG, 77 DEG, 78 DEG, 79 DEG, 80 DEG, 81 DEG, 82 DEG, 83 DEG, 84 DEG, 85 DEG, 86 DEG, 87 DEG, 88 DEG, 89 DEG, 90 DEG, the vertical cross section of the protruding part with too small inclination angle is reduced, the drainage efficiency is influenced, the water flow needs to overcome the gravity of the movable plate to be larger, the valve is not opened, the second end can not play a trivial stopping effect after the angle exceeds 90 DEG, and the water flow can directly rush the valve to flow out, in the embodiment, the angle of alpha 3 is 80 deg.

As shown in fig. 1-2, the self-flushing filtration system 500 further includes a clean water outlet 14, the clean water outlet 14 being configured to drain filtered water.

As shown in fig. 6, the three-stage flushing filter devices are sequentially communicated from top to bottom in the longitudinal direction of the tank body, are uniformly distributed at intervals in the circumferential direction of the tank body, and are arranged in such a way, so that different filter devices are avoided from each other, and the space is reasonably applied.

The following describes the working procedure of a self-flushing filtration system provided by the embodiment of the utility model:

when the self-flushing filtration system of the utility model filters in a single stage, the valve 30 seals the protruding part 121 and is provided with the rocker 50 and the overflow pipeline 40 to control the opening and closing of the valve 30, specifically, impurities block the filtering hole of the filter plate to raise the water level after filtering sewage, water flows into the overflow pipeline 40 from the overflow hole and then falls onto the right end 531 of the rocker 50 from the water outlet 41, a lever structure is formed between the right end 531, the top end 521 and the elastic piece 60, the rocker 50 is driven by the water flow to move downwards by the water flow impacting the right end 531 against the elastic force of the elastic piece 60, the top end 521 abutting against the movable plate 32 leaves the movable plate 32, a large amount of water is stored when the water level in the tank rises to the overflow water level, the top end 521 leaves the movable plate 32 and then the movable plate 32 flows out of the tank body from the opening of the protruding part 121, and washes the top surface 521a of the filter plate, and impurities on the filter plate are flushed. After the movable plate 32 of the valve 30 is pushed up by water flow, the water level in the tank body drops sharply, no water flow flows through the overflow pipeline, the movable plate moves upwards under the action of elasticity, the top 521 returns to the initial position, the impact force of the water flow in the tank body drops along with the water level drop of the movable plate, the movable plate gradually returns by self weight, because the movable plate returns to the initial position, in the resetting process of the movable plate, the side arm of the movable plate blocks the movable plate, the movable plate is lapped on the top 521a which is obliquely arranged and presses down the top 521 by self weight, the movable plate is forced to move downwards until the fixed plate 3 is completely jointed with the movable plate 32, the side 521b is abutted against the movable plate again under the action of the elastic piece, the valve plate 30 is completely closed, the self-flushing device finishes a self-flushing process until impurities on the filter hole are cleared, the self-flushing filter system continues to filter sewage until suspended matters in the sewage completely block the filter hole again, and the water level in the tank body rises to the overflow water level, and the pollution discharging step is repeated.

It should be noted that, fig. 2 is a schematic structural diagram of the three-stage flushing filter device 100a, 100b and 100c with the valves opened at the same time, in the actual use process, there is no case that the valves of the three-stage flushing filter device are opened at the same time, and under normal conditions, only the valve in one stage can be opened and the corresponding filter plate is flushed, in the figure, the state that the three-stage valves are opened at the same time is only schematic structural diagram, which indicates that three valves can be opened, but there is no case that the three-stage flushing filter device flushes the filter plate at the same time in practice.

When the three-stage collaborative filtering is carried out on impurities and suspended matters in water, water flows through the primary filter plate 20a, the secondary filter plate 20b and the advanced filter plate 20c in sequence, after one of the primary filter plates is blocked, the corresponding valve of the primary filter plate flows out from the corresponding overflow port to fall on the corresponding pressing plate when the water level rises, and the corresponding valve of the primary filter plate starts to wash the filter plate and then the self-flushing filter system continues to work.

Therefore, according to the self-flushing filter system 500 provided by the utility model, the function of automatically flushing the filter plate can be realized, the equipment manufacturing and maintenance cost is low, the water consumption is small, the filter plate does not need to be manually cleaned, the maintenance is simple and convenient, in addition, the filter precision and the efficiency can be improved through the multistage filtration, and the self-flushing filter system can be widely applied to purifying and filtering sewage.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model.

In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A self-flushing filtration system (500), comprising: a plurality of self-cleaning filter devices (100), the self-cleaning filter devices (100) comprising:

a tank (10), the tank (10) comprising an inner wall (11) and an outer wall (12) opposite the inner wall (11), the inner wall (11) defining a first channel (13), the outer wall (12) protruding outwardly forming a protrusion (121), the protrusion (121) having a drain (121 a), the drain (121 a) being in communication with the first channel (13);

-a filter plate (20), said filter plate (20) being arranged obliquely in said first channel (13) and being connected to said inner wall (11), said filter plate (20) having a first top surface (21), the lowest point of said first top surface (21) being not higher than said protrusion (121);

a valve (30), wherein the valve (30) is used for controlling the opening and closing of the sewage outlet (121 a) and comprises a first plate (31) connected with the protruding part (121) and a second plate (32) hinged with the first plate (31);

an overflow pipe (40), wherein the overflow pipe (40) comprises an overflow hole (17) arranged on the inner wall (11) of the tank body, and the overflow pipe (40) is provided with a water outlet (41);

-a rocker (50), said rocker (50) comprising a first end (511) hinged to said outer wall (12), a second end (521) abutting against said second plate (32) and a third end (531) located below said water outlet (41); a kind of electronic device with high-pressure air-conditioning system

An elastic piece (60), wherein one end of the elastic piece (60) is connected with the seesaw (50), and the other end of the elastic piece is connected with the tank body (10);

wherein, the filtration precision of the filter plates (20) of the self-cleaning filter devices (100) are gradually increased in a gradual way, wherein the filter devices (100) are sequentially connected end to end.

2. The self-flushing filtration system (500) of claim 1 wherein the plurality of self-cleaning filtration devices (100) are spaced apart along the circumference of the tank (10).

3. The self-flushing filtration system (500) of claim 1 wherein the rocker (50) comprises a hinge (51), the hinge (51) having a first end (511) and a fourth end (512) opposite the first end (511), the fourth end (512) projecting upwardly from the side arm (52), the fourth end (512) further comprising a downwardly projecting rear right extending pressure plate (53), the top of the side arm (52) being the second end (521), the end of the pressure plate (53) remote from the tank (10) being the third end (531).

4. A self-flushing filtration system (500) as claimed in claim 3 wherein said second end (521) comprises a second top surface (521 a) disposed obliquely, said second top surface (521 a) being at an angle of between 30 ° -45 ° to the horizontal, said second top surface (521 a) being higher to the left and lower.

5. The self-flushing filtration system (500) of claim 4, wherein the rocker (50) includes a connection (513) between the first end (511) and the fourth end (512), the resilient member (60) being connected to the connection (513).

6. The self-flushing filtration system (500) of claim 1, wherein the second plate (32) includes a bonding surface (321) connected to the first plate (31), the bonding surface (321) protruding toward the first plate (31) forming a seal (321 a).

7. The self-flushing filtration system (500) of claim 1 wherein the outer wall (12) includes a hinged support (15) extending horizontally rightward from the outer wall (12), the first end (511) being hinged to the hinged support (15).

8. The self-flushing filtration system (500) of claim 1 wherein the outer wall (12) includes a support portion (16) extending rightward in a horizontal direction from the outer wall (12), one end of the elastic member (60) being disposed on the support portion (16).

9. The self-flushing filtration system (500) of claim 1 wherein the angle between the filter plate (20) and horizontal is between 20 ° -45 °.

10. The self-flushing filtration system (500) of claim 1 wherein the angle between the face of the protrusion (121) connected to the first plate (31) and the horizontal is between 70 ° -90 °.