CN117205639B9

CN117205639B9 - Filtering device with backwashing function

Info

Publication number: CN117205639B9
Application number: CN202311454025.4A
Authority: CN
Inventors: 张敏; 秦永丹; 窦华云; 闫玲; 张云
Original assignee: Shandong Dasuf Material Technology Co ltd
Current assignee: Shandong Dasuf Material Technology Co ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-01-30
Anticipated expiration: 2043-11-03
Also published as: CN117205639A; CN117205639B

Abstract

The invention discloses a filtering device with a back flushing function, and relates to the technical field of sewage treatment. The utility model provides a filter equipment with back flush function, includes the rose box, the rose box is provided with feed inlet, discharge gate and two outlet, control terminal is installed to the rose box, the rose box has solid fixed ring through the support rigid coupling, the rose box is close to one side rotation of solid fixed ring is connected with first carousel, gu fixed ring is close to one side rotation of rose box is connected with the second carousel, first carousel with the rigid coupling has the filter tube of symmetric distribution between the second carousel, gu fixed ring be provided with keep away from the delivery port of inlet intercommunication of support. The invention carries out preliminary sedimentation treatment on the sewage before filtering, and then filters the sewage twice through the filter screen and the filter holes in the upper side water outlet, thereby improving the filtering efficiency of impurities in the sewage.

Description

Filtering device with backwashing function

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a filtering device with a back flushing function.

Background

In order to protect the environment, a large amount of sewage can be produced in the industrial production process, the sewage needs to be filtered before being discharged, impurities in the sewage are treated through methods such as interception and sedimentation of a filter screen, only single filtration is carried out when the sewage is filtered, if the filter mesh is too small, large-particle impurities can plug the meshes of the filter screen, so that the flowing speed of the sewage is influenced, if the filter mesh is too large, partial small-particle impurities are difficult to intercept, other equipment is needed for sedimentation treatment of the sewage before filtration, and if the sedimentation treatment is not carried out, the sludge impurities in the sewage are accumulated on the filter screen to plug the filter screen, so that the filtering efficiency is low.

Disclosure of Invention

In order to solve the technical problems, the invention provides a filtering device with a back flushing function.

The technical scheme of the invention is as follows: the utility model provides a filter equipment with back flush function, includes the rose box, the rose box is provided with feed inlet, discharge gate and two outlet, control terminal is installed to the rose box, the rose box is close to through the support rigid coupling has solid fixed ring, the rose box be close to one side rotation of solid fixed ring is connected with first carousel, gu fixed ring is close to one side rotation of rose box is connected with the second carousel, first carousel with be provided with the filter tube of symmetric distribution between the second carousel, the second carousel be provided with symmetric distribution and with adjacent the inlet opening of filter tube intercommunication, gu fixed ring be provided with keeping away from the support the delivery port of inlet intercommunication, the filter tube is close to one side of rose box is provided with annular cavity, the filter tube be close to one side of first carousel be provided with circumference equidistant distribution and with the filter hole of annular cavity intercommunication, the filter tube keep away from one side of first carousel be provided with circumference equidistant distribution and with the rectangular groove of annular cavity intercommunication, sliding connection has the shunt pore diameter in the filter tube, filter tube be close to in the filter tray the filter aperture is close to the filter inlet in the filter tray the filter aperture is close to the outlet.

In a further preferred embodiment, the diverter tray is located between the filter hole and the rectangular groove, and the diverter tray is arranged in a frustum shape and is used for guiding water.

Further preferably, the filter comprises a cleaning mechanism, the cleaning mechanism is arranged in the filter box, the cleaning mechanism is used for cleaning impurities on the filter screen in the water outlet close to the feed inlet, the cleaning mechanism comprises a servo motor, the servo motor is fixedly connected to one side, far away from the first rotary table, of the filter box through a supporting plate, the servo motor is electrically connected with the control terminal, an output shaft of the servo motor is fixedly connected with a rotary shaft which is rotationally connected with the filter box, the rotary shaft is fixedly connected with scraping plates which are distributed at equal intervals in circumferential direction, the scraping plates are matched with a filter screen in the water outlet close to the feed inlet, the filter pipe is provided with a scraping part used for pushing the adjacent diverter plate to move, and the rotary shaft is provided with a switching part for switching the filter pipe.

Further preferably, the scraping component comprises a sliding rod, the sliding rod is slidably connected to the adjacent filtering pipes, the filtering pipes are provided with guide grooves, the sliding rod is fixedly connected with a first L-shaped rod slidably connected with the guide grooves, the first L-shaped rod is slidably connected with the adjacent flow distribution disc, a tension spring is fixedly connected between the first L-shaped rod and the adjacent flow distribution disc, the sliding rod is provided with a driving component, the driving component is used for extruding the adjacent sliding rod, and the sliding rod is provided with a water supplementing component for supplementing water into the adjacent annular cavity.

Further preferably, the driving assembly comprises a second L-shaped rod, the second L-shaped rod is slidably connected to one side, adjacent to the sliding rod, of the sliding rod, which is far away from the filtering box, a first spring is fixedly connected between the second L-shaped rod and the sliding rod, a curved plate matched with the second L-shaped rod is fixedly connected to the bracket, the curved plate is set to be isosceles triangle, and the middle part of the curved plate protrudes towards one side, adjacent to the filtering box.

Further preferably, the included angle between the two water outlets is smaller than 180 degrees, and the water outlet close to the discharge outlet deflects forwards.

Further preferably, the cross-sectional area of the drain opening is larger than the cross-sectional area of the filter tube, and the cross-sectional area of the water outlet is larger than the cross-sectional area of the water inlet hole.

Further preferably, the water replenishing assembly comprises a pressurizing shell, the pressurizing shell is connected with the adjacent annular cavity in a sliding mode and is fixedly connected with the adjacent sliding rod, an annular groove matched with the filtering hole is formed in the inner annular surface of the pressurizing shell, a second spring located in the adjacent annular cavity is fixedly connected between the pressurizing shell and the adjacent filtering pipe, the elastic coefficient of the first spring is larger than that of the second spring, the elastic coefficient of the second spring is larger than that of the tension spring, the filtering box is close to one side of the first rotary disc and is connected with a rotary column in a rotary mode, symmetrically distributed through holes are formed in the rotary column, a filter screen is arranged in the through holes of the rotary column in a fixedly connected mode, a rotary sleeve is fixedly connected with the symmetrically distributed mode and is communicated with the adjacent through holes of the rotary column, a U-shaped pipe is connected with the adjacent filtering pipe in a sliding mode, one end of the U-shaped pipe is far away from the adjacent rotary sleeve and is communicated with the adjacent pressurizing shell, the U-shaped pipe is connected with the adjacent filtering pipe in a sliding mode, one side of the rotary sleeve is connected with the adjacent U-shaped pipe in a sliding mode, one side of the rotary sleeve is close to the rotary sleeve is provided with the adjacent one side of the rotary sleeve, and the rotary sleeve is close to the rotary sleeve is provided with the one-way valve.

Further preferably, the switching component comprises a first belt wheel, the first belt wheel rigid coupling in the pivot, the rose box rigid coupling has fixed cover, fixed cover rotates and is connected with the second belt wheel, the second belt wheel with around being equipped with the belt between the first belt wheel, second belt wheel spline coupling has the spline housing, the spline housing rigid coupling has the gag lever post of symmetric distribution, the rose box is close to one side rotation of discharge gate is connected with the bull stick, the bull stick with the spline housing rotates to be connected, the bull stick rigid coupling has the third carousel, the third carousel be provided with central symmetric distribution and with adjacent gag lever post complex arc wall, the bull stick keep away from the one end of third carousel with pass through power component transmission between the first carousel, the rose box is provided with the detection subassembly that is used for detecting its internal pressure.

Further preferably, the detecting assembly comprises a sealing sleeve, the sealing sleeve is fixedly connected and communicated with the filtering box, an extrusion disc is slidably connected in the sealing sleeve, a third spring is fixedly connected between the extrusion disc and the sealing sleeve, the sealing sleeve is slidably connected with an L-shaped plate fixedly connected with the extrusion disc, and a collar rotationally connected with the spline housing is fixedly connected with one end of the L-shaped plate, which is far away from the extrusion disc.

Compared with the prior art, the invention has the following advantages:

according to the invention, the sewage is subjected to preliminary sedimentation treatment before being filtered, the filtering efficiency of impurities in the sewage is improved by filtering twice through the filter screen and the filter holes in the upper side water outlet, the filtering pipes which are in filtering are detected, when the filter holes of the filtering pipes are blocked, the filtering pipes are automatically switched, impurities accumulated in the filtering pipes are pushed out through the flow dividing disc in the switching process of the filtering pipes, water is rapidly introduced into the filter holes through the pressurizing shell to perform backflushing, the blocking of the filter holes is avoided, and the left side impact of the flow dividing disc is caused by the water discharged by the pressurizing shell, so that the impurities are scraped by the auxiliary flow dividing disc.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of a three-dimensional structure of the present invention;

FIG. 3 is a schematic perspective view of a cleaning mechanism according to the present invention;

FIG. 4 is an exploded view of the perspective structure of the first turntable and filter tube of the present invention;

FIG. 5 is an exploded view of the second turntable and filter tube of the present invention in a perspective view;

fig. 6 is a schematic perspective view of a scraping element of the present invention;

FIG. 7 is a schematic perspective view of a driving assembly according to the present invention;

FIG. 8 is a schematic perspective view of a water refill assembly according to the present invention;

fig. 9 is a schematic perspective view of a switching member according to the present invention.

In the figure: 1-filter box, 101-feed inlet, 102-discharge outlet, 103-water outlet, 2-control terminal, 3-bracket, 4-fixed ring, 401-water outlet, 5-first rotary disk, 6-second rotary disk, 601-water inlet, 7-filter tube, 701-annular cavity, 702-filter hole, 703-rectangular slot, 704-guide slot, 8-split disk, 9-blocking ring, 1001-servo motor, 1002-rotary shaft, 1003-scraper, 1101-slide bar, 1102-first L-shaped bar, 1103-tension spring, 1201-second L-shaped bar, 1202-first spring, 1203-arc plate, 1301-pressure shell, 1302-second spring, 1303-rotary column, 1304-rotary sleeve, 1305-U-tube, 1306-push disk, 1401-first pulley, 1402-fixed sleeve, 1403-second pulley, 1404-spline housing, 1405-stop bar, 1406-rotary rod, 1407-third rotary disk, 1501-sealing sleeve, 1502-extrusion disk, 1503-third spring, 1504-L-collar, 1505-collar.

Detailed Description

The present invention will be further described with reference to the drawings and the detailed description, wherein the positional relationships described in the following examples are for the understanding of the present invention by those skilled in the art, and are not limited to the specific mounting orientations of the present invention.

Example 1: 1-5 and 8, including the filter box 1, the top of filter box 1 is provided with feed inlet 101, the bottom discharge gate 102 of filter box 1, under the initial state, discharge gate 102 is plugged, the right side of filter box 1 is provided with two outlet 103, control terminal 2 is installed to the front side of filter box 1, the lower part rigid coupling on the right side of filter box 1 has support 3, the top rigid coupling of support 3 has solid fixed ring 4, the right side of filter box 1 rotates and is connected with first carousel 5, the left side of solid fixed ring 4 rotates and is connected with second carousel 6, two filter tubes 7 of upper and lower symmetric distribution are installed to the detachable between first carousel 5 and the second carousel 6, the radius of filter tube 7 left side is greater than the radius of right side, second carousel 6 is provided with inlet 601 of upper and lower symmetric distribution and communicating with adjacent filter tube 7, the upper side of the fixed ring 4 is provided with a water outlet 401 communicated with the water inlet 601 on the upper side, the left side of the filter tube 7 is provided with an annular cavity 701, the left side in the filter tube 7 is provided with filter holes 702 which are distributed at equal intervals in the circumferential direction and communicated with the annular cavity 701, the filter tube 7 is provided with three rectangular grooves 703 which are distributed at equal intervals in the circumferential direction, the three rectangular grooves 703 are communicated with the right side of the annular cavity 701, the filter tube 7 is in sliding connection with a flow distribution disc 8, the flow distribution disc 8 is positioned between the filter holes 702 and the rectangular grooves 703, sewage enters through the left side of the filter tube 7, enters the annular cavity 701 through the filter holes 702 and is discharged into the filter tube 7 again through the rectangular grooves 703, the flow distribution disc 8 is arranged into a frustum shape for guiding water, the sewage is guided to the filter holes 702 under the guiding action of the flow distribution disc 8 after contacting the flow distribution disc 8, a blocking ring 9 matched with the adjacent flow distribution disc 8 is fixedly connected in the filter tube 7, the baffle ring 9 is used for limiting the diverter tray 8, the upper water outlet 103 is provided with a filter screen, the aperture of the filter screen mesh in the upper water outlet 103 is larger than the aperture of the filter hole 702, sewage is filtered by the filter screen in the upper water outlet 103 when entering the upper water outlet 103, large-grain-size impurities in the sewage are removed, and then the sewage is secondarily filtered by the filter hole 702, so that small-grain-size impurities in the sewage are removed.

When the filtering device is required to filter sewage, in an initial state, the discharge hole 102 is blocked, an operator continuously introduces the sewage into the filtering box 1 through the feed hole 101, when the sewage level in the filtering box 1 exceeds the upper water outlet 103, the sewage at the upper side in the filtering box 1 enters the upper filtering pipe 7 through the upper water outlet 103, due to the sedimentation effect of the sewage, the sludge and impurities in the sewage can be accumulated at the lower side of the filtering box 1 for preliminary sedimentation treatment, and when the sewage enters the upper water outlet 103, the impurities carried in the sewage are intercepted by the filter screen in the upper water outlet 103, the first filtering treatment is carried out on the sewage, the impurities with large particle size are removed, and the sewage entering the filtering pipe 7 at the upper side is continuously moved rightward to contact the left side of the flow distribution disc 8 and enter the annular cavity 701 through the filtering hole 702 under the diversion effect, since the aperture of the filtering hole 702 is smaller than that of the filtering net mesh in the upper water outlet 103, impurities with smaller particle size in the sewage can be filtered again by the filtering hole 702 and intercepted at the left side of the diverter tray 8 in the filtering pipe 7 in the process of the sewage passing through the filtering hole 702, the filtering efficiency of impurities in the sewage is improved by twice filtering through the filtering net in the upper water outlet 103 and the filtering hole 702, the sewage which is filtered in the annular cavity 701 enters the right side of the diverter tray 8 in the filtering pipe 7 through the rectangular groove 703, finally enters the upper water inlet 601 through the right side of the filtering pipe 7 and is discharged from the water outlet 401, the operator collects the discharged sewage, the left side of the lower part of the fixing ring 4 seals the right end of the lower filtering pipe 7, the sewage in the lower filtering pipe 7 is not discharged, the lower filtering pipe 7 does not participate in the sewage filtering process, after all sewage treatment is accomplished, operating personnel no longer pour into sewage into to filter tank 1 in, and operating personnel will filter tube 7 simultaneously and clear up its interior impurity to open discharge gate 102, remaining sewage and impurity in the filter tank 1 pass through discharge gate 102 discharge, and operating personnel is with discharge gate 102 exhaust sewage collection, and this device uses and accomplishes.

Example 2: on the basis of embodiment 1, as shown in fig. 1-3, the filter box further comprises a cleaning mechanism, the cleaning mechanism is arranged on the filter box 1 and is used for cleaning impurities on the filter screen in the upper side water outlet 103, the cleaning mechanism comprises a servo motor 1001, the servo motor 1001 is fixedly connected to the upper portion of the left side of the filter box 1 through a supporting plate, the servo motor 1001 is electrically connected with a control terminal 2, an output shaft of the servo motor 1001 is fixedly connected with a rotating shaft 1002 which is rotationally connected with the upper side of the filter box 1, the right end of the rotating shaft 1002 is fixedly connected with three scraping plates 1003 which are distributed at equal intervals in the circumferential direction, the rotating shaft 1002 drives the three scraping plates 1003 to rotate so as to scrape the impurities adhered on the filter screen in the upper side water outlet 103, a scraping part for pushing an adjacent flow dividing disc 8 is arranged on the filter pipe 7, and the rotating shaft 1002 is provided with a switching part for switching the filter pipe 7.

As shown in fig. 6 to 8, the scraping member comprises a slide bar 1101, the slide bar 1101 is slidably connected to the adjacent filter tube 7, the left side of the slide bar 1101 is located in the adjacent annular cavity 701, a guide groove 704 is provided on the left side in the filter tube 7, the guide groove 704 is located on the left side of the filter hole 702, a first L-shaped rod 1102 is fixedly connected to the left end of the slide bar 1101 in a sliding manner with the guide groove 704, the first L-shaped rod 1102 is located on the left side in the adjacent filter tube 7, the first L-shaped rod 1102 is slidably connected to the adjacent distribution plate 8, a tension spring 1103 is fixedly connected between the right end of the first L-shaped rod 1102 and the adjacent distribution plate 8, the tension spring 1103 is located on the outer side of the right portion of the adjacent first L-shaped rod 1102, the slide bar 1101 is provided with a driving assembly for pressing the adjacent slide bar 1101, and the slide bar 1101 is provided with a water supplementing assembly for supplementing water into the adjacent annular cavity 701.

As shown in fig. 4 and 6-8, the driving assembly comprises a second L-shaped rod 1201, the second L-shaped rod 1201 is slidingly connected to the right side of the adjacent slide rod 1101, a first spring 1202 is fixedly connected between the second L-shaped rod 1201 and the adjacent slide rod 1101, the first spring 1202 is positioned outside the right side of the adjacent slide rod 1101, an arc-shaped plate 1203 matched with the second L-shaped rod 1201 is fixedly connected to the upper part of the bracket 3, the arc-shaped plate 1203 is positioned at the lower side of the fixed ring 4, the arc-shaped plate 1203 is provided as an isosceles triangle, the middle part of the arc-shaped plate 1203 protrudes to the left side, the second L-shaped rod 1201 is contacted with the rear side surface of the arc-shaped plate 1203 and continuously moves to the left under the guiding action of the arc-shaped plate 1201, the included angle between the two water outlets 103 is smaller than 180 °, the water outlet 103 at the lower side is positioned in front of the lower side of the upper side water outlet 103, the cross-sectional area of the water outlet 103 is larger than the cross-sectional area of the filter tube 7, the cross-sectional area of the water outlet 401 is larger than the cross-sectional area of the water inlet 601, when the filter tube 7 is positioned at the upper side, the left end of the filter tube 7 is communicated with the right side 103, and the water outlet 7 is communicated with the water inlet 401 through the water inlet 401.

As shown in fig. 7 and 8, the water replenishing assembly comprises a pressurizing shell 1301, the pressurizing shell 1301 is slidably connected to the adjacent annular cavity 701 and fixedly connected with the adjacent slide bar 1101, an annular groove matched with the filtering hole 702 is arranged on the inner annular surface of the pressurizing shell 1301, when the pressurizing shell 1301 moves leftwards, water in the pressurizing shell 1301 is discharged through the annular groove on the pressurizing shell to recoil the filtering hole 702, a second spring 1302 positioned in the adjacent annular cavity 701 is fixedly connected between the pressurizing shell 1301 and the adjacent filtering pipe 7, the second spring 1302 is positioned at the left side of the slide bar 1101, the elastic coefficient of the first spring 1202 is larger than that of the second spring 1302, when the second L-shaped rod 1201 moves leftwards, the second L-shaped rod 1201 drives the adjacent pressurizing shell 1301 to move leftwards through the first spring 1202 and the slide bar 1101, the second spring 1302 is compressed, the first spring 1202 is not compressed, the elastic coefficient of the second spring 1302 is larger than that of the tension spring 1103, the middle part on the right side of the filter tank 1 is rotationally connected with a rotating column 1303, the rotating column 1303 is provided with two through holes which are vertically symmetrically distributed, a filter screen is arranged in the through holes of the rotating column 1303, the filter screen in the through holes of the rotating column 1303 is used for intercepting impurities in sewage in the filter tank 1, the rotating column 1303 is fixedly connected with two rotating sleeves 1304 which are vertically symmetrically distributed, the rotating sleeves 1304 are communicated with the through holes adjacent to the rotating column 1303, the right side of the rotating sleeve 1304 is slidingly connected with a U-shaped pipe 1305, one end of the U-shaped pipe 1305 far away from the adjacent rotating sleeve 1304 is communicated with an adjacent pressurizing shell 1301, the U-shaped pipe 1305 is slidingly connected with an adjacent filter pipe 7, the pressurizing shell 1301 is slidingly connected with a pushing disc 1306 fixedly connected with the adjacent U-shaped pipe 1305, when the pressurizing shell 1301 moves leftwards, the pushing disc 1306 is driven by the U-shaped pipe 1305 to synchronously move leftwards, one end, which is close to the adjacent pushing disc 1306, in the U-shaped pipe 1305 is provided with a one-way valve, the left side of the rotation sleeve 1304 is provided with a check valve, and when the push plate 1306 moves leftward, the pressure in the rotation sleeve 1304 increases, the check valve on the left side of the rotation sleeve 1304 closes, the check valve in the U-shaped pipe 1305 opens, and water in the rotation sleeve 1304 enters the pressurizing housing 1301 through the U-shaped pipe 1305.

As shown in fig. 2 and 9, the switching component includes a first pulley 1401, the first pulley 1401 is fixedly connected to the left end of the rotating shaft 1002, a fixed sleeve 1402 is fixedly connected to the lower portion of the left side of the filter box 1, a second pulley 1403 is rotatably connected to the left side of the fixed sleeve 1402, a belt is wound between the second pulley 1403 and the first pulley 1401, the second pulley 1403 is in spline connection with a spline housing 1404, the spline housing 1404 is still driven by the second pulley 1403 when sliding freely in a transverse direction, two limit rods 1405 which are symmetrically distributed up and down are fixedly connected to the left side of the spline housing 1404, a rotating rod 1406 is rotatably connected to the lower side of the filter box 1, the left side of the rotating rod 1406 is fixedly connected to the spline housing 1404, a third rotating disc 1407 is fixedly connected to the left end of the rotating rod 1406, the third rotating disc 1407 is arranged in a central symmetry and is matched with an arc groove adjacent to the limit rod 1405, in an initial state, the limit rod 1405 is not inserted into the arc groove adjacent to the third rotating disc 1407, the arc groove has a certain radian, the limit rod 1405 is ensured to be moved leftwards when rotating, and then the limit rod 1405 is still inserted into the groove adjacent groove, and the arc groove is used for detecting the rotation of the third rotating disc 1405, and the rotating disc 1405 and the rotating disc is fixedly connected to the rotating assembly.

As shown in fig. 9, the detection assembly includes a sealing sleeve 1501, the sealing sleeve 1501 is fixedly connected and communicated with the lower portion of the left side of the filter tank 1, the sealing sleeve 1501 is located on the upper side of a fixed sleeve 1402, a pressing disc 1502 is slidably connected between the sealing sleeve 1501, a third spring 1503 is fixedly connected between the pressing disc 1502 and the sealing sleeve 1501, when a filter hole 702 of the filter tube 7 is plugged, the sewage discharge speed in the filter tank 1 is slowed down, the pressure is increased, the pressing disc 1502 starts to move leftwards to press the third spring 1503, the left side of the sealing sleeve 1501 is slidably connected with an L-shaped plate 1504 fixedly connected with the pressing disc 1502, and the lower end of the L-shaped plate 1504 is fixedly connected with a collar 1505 rotationally connected with the outer ring surface of the spline sleeve 1404.

Because the filter screen in the upper water outlet 103 needs to continuously filter impurities in sewage, the filter screen in the upper water outlet 103 can continuously accumulate impurities, and excessive impurity accumulation can plug the filter screen in the upper water outlet 103, so that the filter screen in the upper water outlet 103 needs to be cleaned of impurities attached to the filter screen, and the specific operation is as follows: in the process of filtering sewage by the filter screen in the upper water outlet 103, the control terminal 2 starts the servo motor 1001, the output shaft of the servo motor 1001 drives the rotating shaft 1002 to rotate, the rotating shaft 1002 drives the three scraping plates 1003 to rotate, impurities on the filter screen in the upper water outlet 103 are scraped, the filter screen in the upper water outlet 103 is prevented from being blocked by the impurities, and the scraped impurities fall into the lower side in the filter box 1, so that subsequent treatment is facilitated.

When the filter holes 702 are used for secondary filtration of sewage, small-particle-size impurities in the sewage are accumulated on the left side of the diverter disc 8 in the filter pipe 7 and part of the filter holes 702 are blocked, after part of the filter holes 702 are blocked, the sewage flow rate is reduced, so that the sewage pressure in the filter box 1 is increased, the extrusion disc 1502 moves leftwards due to the increased sewage pressure in the filter box 1, the third spring 1503 is compressed, the extrusion disc 1502 drives the sleeve ring 1505 to move leftwards through the L-shaped plate 1504, the first pulley 1401 drives the second pulley 1403 to rotate through the belt in the process of rotating the first pulley 1401, the second pulley 1403 drives the two limit rods 1405 to rotate anticlockwise (in the right view direction) through the spline sleeve 1404, the sleeve ring 1505 drives the spline sleeve 1404 to move leftwards in the process of moving the sleeve ring 1505, and when the pressure in the filter box 1 is overlarge, the fact that most of the filter holes 702 of the upper filter pipe 7 are blocked is proved, and therefore the filter holes 702 of the upper filter pipe 7 need to be processed in a backflushing mode, and the operation is as follows: when the pressure in the filter box 1 is too large, the limit rod 1405 moves leftwards and is just inserted into the arc-shaped groove of the adjacent third rotary table 1407, if the limit rod 1405 is not aligned with the arc-shaped groove of the adjacent third rotary table 1407 when moving leftwards, the left end of the limit rod 1405 contacts the right side surface of the third rotary table 1407 and is inserted into the arc-shaped groove of the adjacent third rotary table 1407 after rotating for a certain angle, and when the left end of the limit rod 1405 is inserted into the arc-shaped groove of the adjacent third rotary table 1407, the limit rod 1405 drives the third rotary table 1407 to rotate anticlockwise, the third rotary table 1407 drives the first rotary table 5 to rotate clockwise through the power component, and the first rotary table 5 drives the two filter pipes 7 to rotate clockwise by taking the rotary column 1303 as the rotation center.

Taking the filter tube 7 on the upper side as an example, the filter tube 7 drives the rotary sleeve 1304 to rotate clockwise by taking the rotary column 1303 as a rotation center through the U-shaped tube 1305, the filter tube 7 drives the second L-shaped rod 1201 to rotate clockwise by taking the rotary column 1303 as a rotation center through the sliding rod 1101, the second L-shaped rod 1201 rotates gradually to be close to the rear side surface of the arc-shaped plate 1203, when the right end of the second L-shaped rod 1201 contacts with the rear side surface of the arc-shaped plate 1203, the second L-shaped rod 1201 continuously moves leftwards under the extrusion of the rear side surface of the arc-shaped plate 1203 along with the continuous rotation of the second L-shaped rod 1201, the second L-shaped rod 1201 drives the sliding rod 1101 to move leftwards through the first spring 1202, the sliding rod 1101 drives the pressurizing shell 1301 to move leftwards, the elasticity coefficient of the first spring 1202 is larger than that of the second spring 1302, the second spring 1302 is compressed, the sliding rod 1101 drives the first L-shaped rod 1102 to move leftwards, the tension spring 1103 in a stretched state is gradually reset, when the pressure housing 1301 is positioned at the left side of the split disc 8, the tension spring 1103 is reset to completion, at this time, since the left end of the filter tube 7 is not aligned with the drain opening 103 at the lower side, the left side of the first L-shaped rod 1102 is in contact with and limited by the right side of the filter housing 1 and cannot continue to move leftwards, as the second L-shaped rod 1201 moves leftwards continuously, the first spring 1202 starts to be compressed, when the second L-shaped rod 1201 moves from the rear side of the arc-shaped plate 1203 to the left middle part of the left side of the arc-shaped plate 1203, the left end of the filter tube 7 is aligned with the drain opening 103 at the lower side, the left side of the first L-shaped rod 1102 is no longer limited by the right side of the filter housing 1, the first spring 1202 resets to drive the slide rod 1101 to move leftwards rapidly, the slide rod 1101 drives the pressure housing 1301 to move leftwards rapidly, the second spring 1302 continues to be compressed, the slide rod 1101 drives the split disc 8 to move leftwards through the first L-shaped rod 1102 and the tension spring 1103, the left-hand movement of the diverter disc 8 pushes the left-hand impurities in the filter tube 7 to the left and the left-hand side of the first L-shaped rod 1102 is inserted into the filter box 1.

In the process that the pressurizing shell 1301 moves leftwards, the pressurizing shell 1301 drives the pushing plate 1306 to move leftwards through the U-shaped pipe 1305, water is stored in the rotating sleeve 1304 in an initial state, the pushing plate 1306 leftwards increases the pressure in the rotating sleeve 1304, the one-way valve in the rotating sleeve 1304 is closed, the one-way valve in the U-shaped pipe 1305 is opened, the water in the rotating sleeve 1304 enters the pressurizing shell 1301 through the U-shaped pipe 1305 and is discharged through the annular groove at the inner side of the pressurizing shell 1301, the filtering hole 702 is backflushed from right to left, the water discharging speed in the pressurizing shell 1301 is faster, high-pressure water can quickly flush impurities blocked in the filtering hole 702 when backflushing the filtering hole 702, the impurities are prevented from being blocked in the filtering hole 702, the pressurizing shell 1301 is positioned at the left side of the distributing plate 8, the water discharged by the pressurizing shell 1301 impacts the left side of the distributing plate 8, the auxiliary distributing plate 8 leftwards pushes the impurities accumulated in the filtering pipe 7, finally, impurities in the filter tube 7 enter the filter box 1 through the water outlet 103 at the lower side under the combined action of the flow dividing disc 8 and the water discharged by the pressurizing shell 1301, the impurities entering the filter box 1 are accumulated at the lower side of the filter box 1 and the original impurities in the filter box 1, so that the subsequent treatment is facilitated, the flow dividing disc 8 positioned at the lower side filter tube 7 seals the left side of the lower side filter tube 7, the impurities in the filter box 1 are prevented from entering the lower side filter tube 7, when the second L-shaped rod 1201 is positioned at the middle part of the left side of the arc plate 1203, the lower side filter tube 7 is just turned to the upper side, and as the filter holes 702 turned to the upper side filter tube 7 are not sealed, sewage in the filter box 1 can be discharged through the upper side filter tube 7 quickly, the pressure in the filter box 1 is reduced, when the pressure in the filter box 1 is reduced, the third spring 1503 resets the pressurizing disc 1502 to move rightwards, the two limit rods 1405 move rightwards and do not drive the third rotary table 1407 to rotate any more, meanwhile, the first rotary table 5 and the two filter pipes 7 do not rotate any more, the filter pipes 7 are switched, and the cross section area of the water outlet 103 is larger than that of the filter pipes 7, so that when the filter pipes 7 are rotated to the upper side, the left side of the filter pipes 7 is still communicated with the water outlet 103 at the upper side, the right side of the filter pipes 7 is still communicated with the water outlet 401, and sewage is ensured to smoothly flow through the filter pipes 7.

At this time, if the filtering holes 702 of the upper filtering pipes 7 are plugged, the two filtering pipes 7 continue to rotate to perform the switching process, in the process that the lower filtering pipe 7 rotates to the upper side, the second L-shaped rod 1201 contacts with the front side surface of the arc plate 1203, the second spring 1302 in a compressed state resets to drive the pressing shell 1301 to move rightwards, the pressing shell 1301 drives the sliding rod 1101 to move rightwards, the sliding rod 1101 drives the flow distribution disc 8 to move rightwards through the first L-shaped rod 1102 and the tension spring 1103, after the flow distribution disc 8 contacts with the blocking ring 9, the blocking ring 9 is blocked by the flow distribution disc 8 to move rightwards, the first L-shaped rod 1102 continues to move rightwards so that the tension spring 1103 is stretched, the pressing shell 1301 gradually moves to the right side of the flow distribution disc 703 and is positioned on the right side of the rectangular groove 703, in the process that the pressing shell 1301 moves rightwards, the pressing shell 1301 drives the pushing disc 1306 to move rightwards through the U-shaped tube 1305, the left side pressure of the pushing disc 1306 in the rotating sleeve 1304 is reduced, the one-way valve in the U-shaped tube 1305 is closed, the one-way valve in the rotating sleeve 1304 is opened, water in the filtering box 1 enters the rotating sleeve 1304 to the right through the through hole of the rotating column 1303, after the flow distribution disc 8 contacts with the blocking ring 9, the filtering ring 9, the water in the filtering box 1 enters the second filtering pipe 1201, and is always to the right side of the filtering pipe, and is left side of the filtering pipe 1201, and when the filtering pipe is left in the filtering pipe is left, and enters into the second filtering pipe 1201, and enters into the filtering pipe, and is left, and finally, and enters into the filtering pipe side, and enters into the filtering pipe, and is left.

In summary, by detecting the filtering tube 7 that is filtering, when the filtering hole 702 of the filtering tube 7 is plugged, the filtering tube 7 is automatically switched, in the process of switching the filtering tube 7, the impurities accumulated in the filtering tube 7 are pushed out through the diverter disc 8, and the water is quickly introduced into the filtering hole 702 through the pressing shell 1301 to perform backflushing, so that the filtering hole 702 is prevented from being plugged, the water discharged from the pressing shell 1301 impacts the left side of the diverter disc 8, the auxiliary diverter disc 8 scrapes the impurities, and finally the impurities in the filtering tube 7 are discharged into the lower side of the filtering box 1 to be collected.

The technical principles of the embodiments of the present invention are described above in connection with specific embodiments. The description is only intended to explain the principles of the embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will recognize other embodiments of the present invention without undue burden, and those ways that are within the scope of the present invention.

Claims

1. A filter device with back flush function, characterized in that: including rose box (1), rose box (1) is provided with feed inlet (101), discharge gate (102) and two outlet (103), control terminal (2) are installed to rose box (1), rose box (1) is through support (3) rigid coupling has solid fixed ring (4), rose box (1) is close to one side rotation of solid fixed ring (4) is connected with first carousel (5), gu fixed ring (4) is close to one side rotation of rose box (1) is connected with second carousel (6), first carousel (5) with be provided with filter tube (7) of symmetric distribution between second carousel (6), second carousel (6) are provided with symmetric distribution and with adjacent inlet port (601) of filter tube (7) intercommunication, gu fixed ring (4) be provided with keep away from one side rotation of solid fixed ring (4) is connected with first carousel (5), filter tube (7) are close to one side of rose box (1) is provided with annular cavity (701), filter tube (701) are close to one side circumference of first carousel (702) and are provided with equidistant filter tube (702), a rectangular groove (703) which is distributed at equal intervals in the circumferential direction and communicated with the annular cavity (701) is formed in one side, far away from the first rotary table (5), of the filter pipe (7), a flow distribution disc (8) is connected in a sliding manner in the filter pipe (7), a blocking ring (9) matched with the adjacent flow distribution disc (8) is fixedly connected in the filter pipe (7), a filter screen is arranged on the water outlet (103) close to the feed inlet (101), and the aperture of a filter screen mesh in the water outlet (103) close to the feed inlet (101) is larger than that of the filter hole (702);

the flow distribution disc (8) is positioned between the filtering hole (702) and the rectangular groove (703), and the flow distribution disc (8) is arranged in a frustum shape and is used for guiding water;

the filter box is characterized by further comprising a cleaning mechanism, the cleaning mechanism is arranged on the filter box (1) and is used for cleaning impurities on a filter screen in the water outlet (103) close to the feed inlet (101), the cleaning mechanism comprises a servo motor (1001), the servo motor (1001) is fixedly connected to one side, far away from the first rotary table (5), of the filter box (1) through a supporting plate, the servo motor (1001) is electrically connected with the control terminal (2), a rotating shaft (1002) which is rotationally connected with the filter box (1) is fixedly connected to an output shaft of the servo motor (1001), scraping plates (1003) which are distributed at equal intervals in the circumferential direction are fixedly connected to the rotating shaft (1002), the scraping plates (1003) are matched with the filter screen in the water outlet (103) close to the feed inlet (101), a scraping part for pushing adjacent flow dividing discs (8) to move is arranged on the filter pipe (7), and a switching part for switching the filter pipe (7) is arranged on the rotating shaft (1002).

The scraping component comprises a sliding rod (1101), the sliding rod (1101) is connected to the adjacent filter pipes (7) in a sliding mode, the filter pipes (7) are provided with guide grooves (704), a first L-shaped rod (1102) which is connected with the guide grooves (704) in a sliding mode is fixedly connected to the sliding rod (1101), the first L-shaped rod (1102) is connected with the adjacent flow distribution disc (8) in a sliding mode, a tension spring (1103) is fixedly connected between the first L-shaped rod (1102) and the adjacent flow distribution disc (8), the sliding rod (1101) is provided with a driving component, the driving component is used for extruding the adjacent sliding rod (1101), and the sliding rod (1101) is provided with a water supplementing component used for supplementing water into the adjacent annular cavity (701);

the water replenishing assembly comprises a pressurizing shell (1301), the pressurizing shell (1301) is connected with the adjacent annular cavity (701) in a sliding mode and fixedly connected with the adjacent sliding rod (1101), an annular groove matched with the filtering holes (702) is formed in the inner annular surface of the pressurizing shell (1301), a second spring (1302) positioned in the adjacent annular cavity (701) is fixedly connected between the pressurizing shell (1301) and the adjacent filtering pipes (7), the elastic coefficient of the first spring (1202) is larger than that of the second spring (1302), the elastic coefficient of the second spring (1302) is larger than that of the tension spring (1103), a rotary column (1303) is connected to one side, close to the first rotating disc (5), of the filtering box (1), symmetrically distributed through holes are formed in the rotary column (1303), a filter screen is arranged in each through hole of the rotary column (1303), a symmetrically distributed rotary sleeve (1304) is fixedly connected with the rotary column (1304), the rotary sleeve (1304) is communicated with one end, far away from the adjacent U-shaped sleeve (1305), of the adjacent U-shaped sleeve (1305) is connected with the adjacent U-shaped sleeve (1305) in a sliding mode, the U-shaped sleeve (1305) is connected with the U-shaped sleeve (1305) in a sliding mode, the rotary sleeve (1304) is slidably connected with a push disc (1306) fixedly connected with an adjacent U-shaped pipe (1305), one end, close to the adjacent push disc (1306), of the U-shaped pipe (1305) is provided with a one-way valve, and one side, close to the adjacent rotary column (1303), of the rotary sleeve (1304) is provided with the one-way valve.

2. A filter device with backwash function as claimed in claim 1, wherein: the driving assembly comprises a second L-shaped rod (1201), the second L-shaped rod (1201) is connected with the adjacent slide rod (1101) in a sliding manner and is far away from one side of the filter box (1), a first spring (1202) is fixedly connected between the second L-shaped rod (1201) and the adjacent slide rod (1101), an arc-shaped plate (1203) matched with the second L-shaped rod (1201) is fixedly connected with the support (3), the arc-shaped plate (1203) is arranged into an isosceles triangle, and the middle part of the arc-shaped plate (1203) protrudes towards one side close to the filter box (1).

3. A filter device with backwash function as claimed in claim 1, wherein: the included angle between the two water outlets (103) is smaller than 180 degrees, and the water outlet (103) close to the discharging hole (102) deflects forwards.

4. A filter device with backwash function as claimed in claim 1, wherein: the cross-sectional area of the water outlet (103) is larger than that of the filter pipe (7), and the cross-sectional area of the water outlet (401) is larger than that of the water inlet hole (601).

5. A filter device with backwash function as claimed in claim 1, wherein: the switching part comprises a first belt wheel (1401), the first belt wheel (1401) is fixedly connected with a rotating shaft (1002), a fixed sleeve (1402) is fixedly connected with a filtering box (1), a second belt wheel (1403) is rotatably connected with the fixed sleeve (1402), a belt is wound between the second belt wheel (1403) and the first belt wheel (1401), the second belt wheel (1403) is in spline connection with a spline housing (1404), a limit rod (1405) which is symmetrically distributed is fixedly connected with the spline housing (1404), a rotating rod (1406) is rotatably connected with one side, close to a discharging hole (102), of the filtering box (1), the rotating rod (1406) is rotatably connected with the spline housing (1404), a third rotating disc (1407) is fixedly connected with a third rotating disc (1407), an arc-shaped groove which is symmetrically distributed in the center and matched with the limit rod (1405) is arranged, one end, far away from the third rotating disc (1407), of the third rotating disc (1407) is in transmission assembly with the first rotating disc (5), and the filtering box (1406) is used for detecting the pressure of the filtering box through the filtering box (1).

6. The filtering apparatus with backwash function as set forth in claim 5, wherein: the detection assembly comprises a sealing sleeve (1501), the sealing sleeve (1501) is fixedly connected and communicated with the filtering box (1), an extrusion disc (1502) is connected in a sliding manner in the sealing sleeve (1501), a third spring (1503) is fixedly connected between the extrusion disc (1502) and the sealing sleeve (1501), the sealing sleeve (1501) is connected with an L-shaped plate (1504) fixedly connected with the extrusion disc (1502) in a sliding manner, and the L-shaped plate (1504) is far away from one end of the extrusion disc (1502) and fixedly connected with a lantern ring (1505) rotationally connected with the spline housing (1404).