CN223009922U - A filtering device for wastewater treatment - Google Patents

Abstract

The utility model discloses a filtering device for wastewater treatment, which relates to the technical field of wastewater treatment and comprises a treatment box, wherein a filter plate is connected with a collecting frame, a vertical rod is connected with a cleaning rod, a connecting block is connected with a movable rod and a connecting seat, a rotating shaft is connected with a motor, a gear is connected with a rack, a cylinder is connected with a connecting rod, a starting motor drives the rotating shaft to enable the gear to move on the rack, the connecting seat drives the connecting block to enable the vertical rod to drive the cleaning rod to push impurities into the collecting frame, the cleaning rod is moved to the maximum extent, the motor is closed, the cylinder is started to enable the cleaning rod to be separated from the filter plate, the motor is started to enable the cleaning rod to be moved to the upper portion of an initial position, the cylinder enables the cleaning rod to move downwards to be in contact with the filter plate, the problems that pushing plates cannot be moved simultaneously when the filter plate is cleaned by pushing push-pull handles on two sides are respectively, the push-pull handles on two sides are relatively troublesome and low in efficiency are solved, and the problem that operation is relatively laborious due to a certain size of the treatment box is solved.

Description

Filter equipment for waste water treatment

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a filtering device for wastewater treatment.

Background

The wastewater treatment is an environment-friendly and energy-saving technology for purifying wastewater by using physical, chemical and biological methods, reducing pollution and realizing recovery and reuse of water resources. The waste water treatment of dye intermediate production is the chemical reaction process of nitrifying, reducing, sulfonating, halogenating, aminating, oxidizing, acylating, alkylating and the like by basic organic raw materials. Waste water pollution is generated in the production process of the dye intermediate, and the waste water is treated by a waste water filtering device.

Chinese patent CN221014739U discloses a dyestuff intermediate waste water treatment facilities, including the processing case, the thing opening has been seted up at the left middle part of processing case, the left middle part hinge connection of processing case has the chamber door, through getting thing opening, the chamber door, the axis of rotation, the rotation handle, the setting of drive bevel gear, the connecting plate, the screw rod, driven bevel gear, connecting sleeve and backup pad, conveniently fix the filter plate and dismantle, and take out the filter plate after dismantling from the processing incasement, thereby greatly reduced the working strength of operating personnel, guaranteed waste water treatment's efficiency, greatly reduced the time of delaying the treatment waste water because of dismantling the filter plate, make the practicality of device strengthen greatly, through the connecting rod, the push pedal, push-pull handle and the setting of collection frame, can push the impurity inside the collection frame, thereby clear up the impurity that adheres to on the filter plate, guarantee the filter plate's filter effect, promote the life of filter plate, reduce the frequency of taking out the clearance to the filter plate.

In the above patent, when impurities on the filter plate are cleaned, when the push-pull handles on two sides are respectively pushed to push the push plate into the collecting frame for the impurities on the filter plate, the push plate cannot be moved simultaneously, which is troublesome and has lower efficiency, or when the push-pull handles on two sides are simultaneously pushed to push the push plate into the collecting frame for the impurities on the filter plate, the operation is laborious due to a certain size of the treatment box.

Disclosure of utility model

The present utility model is directed to a filtering device for wastewater treatment, which solves the problems set forth in the background art.

The technical scheme includes that the filtering device for wastewater treatment comprises a treatment box, wherein a filter plate is fixed on the inner wall of the treatment box, a collecting frame is fixed in the middle of the filter plate, a cleaning rod is arranged on the top surface of the filter plate in a sliding mode, a vertical rod is fixed on the top surface of the cleaning rod, a connecting block connected with the movable rod in a sliding mode is fixed on the upper end of the vertical rod, a connecting seat is fixed on the top surface of the connecting block, a rotating shaft is horizontally rotated on the connecting seat, a motor fixed with the connecting seat is fixed at one end of the rotating shaft, a gear meshed with a rack is fixed on the rotating shaft, a connecting rod fixed with a cylinder is horizontally fixed on the top surface of the rack, a fixing frame fixed with the top surface of the treatment box is fixed on the cylinder, a limiting groove sliding with a limiting rod is horizontally arranged on the side wall of the connecting rod, a limiting rod is fixed with the connecting seat, a discharging groove sliding with the movable plate is formed in the left plate and the right plate of the treatment box, the movable plate is connected with the inner wall of the collecting frame in a sliding mode, a sealing gasket is fixed on the outer wall of the movable plate, a connecting shaft is horizontally fixed on the center of the two movable plates, a connecting shaft is fixed on the right end of the connecting shaft, a push-pull rod is located on the outer side of the treatment box, and a fixing assembly is movably connected with the fixing assembly.

Further, the cross-section of collecting the frame is the U-shaped, and the top surface of collecting the frame and the top surface of filter are located same horizontal plane, have offered a plurality of drainage holes on the collecting the frame.

Further, the cleaning rods are arranged, the two cleaning rods are respectively located on the front side and the rear side of the collecting frame, the two end walls of the cleaning rods are in sliding connection with the inner wall of the treatment box, and the vertical rods are fixed to the center of the top surface of the cleaning rods.

Further, the center of the top plate of the treatment box is horizontally provided with a through groove, the movable rod is movably connected with the through groove, the movable rod is horizontally provided with a connecting groove sliding with the connecting block, and the cross sections of the connecting groove and the connecting block are cross-shaped.

Further, the cross section of the connecting seat is U-shaped, the bottom surface of the connecting seat is in sliding connection with the top surface of the movable rod, two ends of the rotating shaft are respectively connected with the left side plate and the right side plate of the connecting seat in a horizontal rotating mode, the gears are located on the outer sides of the connecting seats, and motors on the two connecting seats are distributed in a central symmetry mode.

Further, the rack is located the upside of gear, and four have been seted up to the spacing groove, are located the both sides wall at both ends around the connecting rod respectively, and the inner wall sliding connection of the lateral wall of connecting rod and connecting seat, and the upper end inner wall of gag lever post and connecting seat is fixed.

Further, the cross-section of mount is the U-shaped, and the top surface center of mount and processing case is fixed, and the mount is located the outside of connecting rod, and the both ends wall sliding connection of the inner wall of mount and connecting rod, cylinder are equipped with two and are located the both ends of mount upper boom respectively.

Further, the inner wall of the upper end of the side plate of the collecting frame is horizontally provided with a guide groove sliding with a guide block, the section of the guide block is L-shaped, and the guide block is fixed with the inner wall of the left movable plate.

Further, fixed subassembly includes the fixed plate, and fixed plate and the horizontal fixed of processing box right wall, and the fixed plate is located the top of arranging the silo, and the vertical threaded connection of fixed plate has the threaded rod, and the threaded rod lower extreme is fixed with the bearing, and the bearing outer wall is fixed with the spacing, and the spacing cross-section is the shape of falling U, and the inner wall and the laminating of push-and-pull rod inner wall of spacing are fixed with the guide bar with fixed plate sliding connection vertically to the spacing top surface, and the guide bar cross-section is the T shape.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, when impurities on the filter plate are cleaned, the motor is started to drive the rotating shaft to rotate, the gear is driven to rotate on the rack to enable the two connecting seats to move in opposite directions, the connecting seats drive the limiting rods to slide in the limiting grooves, meanwhile, the connecting seats drive the connecting blocks to slide in the connecting grooves, the connecting blocks drive the vertical rods to enable the cleaning rods to slide on the filter plate to push and push the impurities on the filter plate into the collecting frame, when the cleaning rods are in full contact with the top surface of the collecting frame, namely, the limiting rods move to the maximum extent, the motor is closed, the starting cylinder drives the connecting rods to move upwards, the limiting grooves on the connecting rods move upwards through the connecting seats, the connecting seats are connected with the connecting grooves to enable the movable rods to move upwards, the connecting blocks drive the vertical rods to enable the cleaning rods to move upwards to be separated from the filter plate, the two cleaning rods to move away from each other and return to the upper part of the initial position, and the cleaning rods are contacted with the filter plate through the downward movement of the movable ends of the cylinder, so that synchronous cleaning is realized, and efficiency is improved and no effort is required; the principle is the same as that of the cleaning process, so that the problems that when impurities on a filter plate are cleaned, push-pull handles on two sides are respectively pushed to push the push plate into the collecting frame for the impurities on the filter plate, the push plate cannot move simultaneously, the operation is troublesome and the efficiency is low are solved;

2. According to the utility model, when excessive impurities are collected in the collecting frame, the rotating threaded rod rotates and moves upwards in the fixed plate, the lower end of the threaded rod rotates in the limiting frame through the bearing, the limiting frame moves upwards to be separated from the push-pull rod, meanwhile, the limiting frame drives the guide rod to slide on the fixed plate, the limiting frame can move vertically, the horizontal limiting of the push-pull rod is relieved, the limiting frame is positioned above the discharge groove, then the connecting shaft is pulled to drive the connecting shaft to move, the movable plate slides in the collecting frame to push the impurities, the impurities are discharged from the right discharge groove to the treatment box, meanwhile, the movable plate on the left side drives the guide block to slide in the guide groove, when the guide block moves to the maximum limit in the guide groove, the push-pull rod is pushed again, the impurities which are not cleaned up are discharged from the left discharge groove to the treatment box, the impurities are prevented from being pushed to the left side of the collecting frame, and the impurities in the collecting frame are cleaned up, and the guide rod is horizontally limited through the fixed assembly.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic top view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the area A in FIG. 1 according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the area B in FIG. 1 according to the present utility model;

FIG. 4 is a schematic view of the internal structure of the treatment tank of the present utility model;

FIG. 5 is a schematic view of the connection of the left flap and the collection frame of the present utility model;

FIG. 6 is a schematic illustration of the structural attachment of the cleaning lever of the present utility model;

The device comprises a processing box 1, a fixing frame 2, a cylinder 3, a through groove 4, a movable rod 5, a connecting groove 6, a connecting groove 7, a connecting rod 8, a limiting groove 9, a limiting rod 10, a connecting seat 11, a rotating shaft 12, a gear 13, a rack 14, a connecting block 15, a fixing plate 16, a threaded rod 17, a guide rod 18, a bearing 19, a push-pull rod 20, a limiting frame 21, a discharging groove 22, a sealing gasket 23, a connecting shaft 24, a movable plate 25, a vertical rod 26, a filter plate 27, a cleaning rod 28, a collecting frame 29, a guide groove 30, a guide block 31 and a motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides the following technical solutions: a filtration device for wastewater treatment, comprising: the treatment box 1, the inner wall of the treatment box 1 is fixed with a filter plate 26, a collecting frame 28 is fixed in the middle of the filter plate 26, the cross section of the collecting frame 28 is U-shaped, the top surface of the collecting frame 28 and the top surface of the filter plate 26 are positioned on the same horizontal plane, the impurities on the filter plate 26 are conveniently collected, a plurality of water filtering holes are formed in the collecting frame 28, liquid can pass through the water filtering holes, a cleaning rod 27 is slidingly arranged on the top surface of the filter plate 26, vertical rods 25 are fixed on the top surface of the cleaning rod 27, two cleaning rods 27 are respectively positioned on the front side and the rear side of the collecting frame 28, two end walls of the cleaning rod 27 are slidingly connected with the inner wall of the treatment box 1, the centers of the vertical rods 25 and the top surface of the cleaning rod 27 are fixedly provided with connecting blocks 14 slidingly connected with movable rods 5, the center of the top plate of the treatment box 1 is horizontally provided with a through groove 4, the movable rod 5 is movably connected with the through groove 4, so that the movable rod 5 moves upwards to slide in the through groove 4, the movable rod 5 cannot be separated from the through groove 4, the movable rod 5 is prevented from horizontally displacing in the cleaning process, the connecting groove 6 sliding with the connecting block 14 is horizontally arranged on the movable rod 5, the cross sections of the connecting groove 6 and the connecting block 14 are cross-shaped, the top surface of the connecting block 14 is fixedly provided with a connecting seat 10 positioned above the treatment box 1, the connecting seat 10 horizontally rotates with a rotating shaft 11, one end of the rotating shaft 11 is fixedly provided with a motor 31 fixed with the connecting seat 10, the cross section of the connecting seat 10 is U-shaped, the bottom surface of the connecting seat 10 is in sliding connection with the top surface of the movable rod 5, two ends of the rotating shaft 11 are respectively and horizontally rotationally connected with the left side plate and the right side plate of the connecting seat 10, a gear 12 is positioned at the outer side of the connecting seat 10, motors 31 on the two connecting seats 10 are centrally and symmetrically distributed, the two motors 31 can synchronously run, the rotating speed is the same, the gear 12 meshed with the rack 13 is fixed on the rotating shaft 11, the connecting rod 7 fixed with the air cylinder 3 is horizontally fixed on the top surface of the rack 13, the air cylinder 3 and the fixing frame 2 fixed with the top surface of the treatment box 1 are fixed, the air cylinder 3 can control the positions of the cleaning rod 27 and the filter plate 26, the cross section of the fixing frame 2 is U-shaped, the fixing frame 2 and the top surface center of the treatment box 1 are fixed, the fixing frame 2 is positioned on the outer side of the connecting rod 7, the inner wall of the fixing frame 2 is in sliding connection with the two end walls of the connecting rod 7, the air cylinder 3 is provided with two and is respectively positioned at the two ends of the upper rod of the fixing frame 2, the side wall of the connecting rod 7 is horizontally provided with a limit groove 8 sliding with the limit rod 9, the limit rod 9 and the connecting seat 10 are fixed, the limit rod 9 and the limit groove 8 can ensure the horizontal movement of the connecting seat 10, the connecting seat 10 can also vertically move under the action of the air cylinder 3, the rack 13 is positioned on the upper side of the gear 12, the limit groove 8 is respectively positioned on the two side walls of the front end and the rear end of the connecting rod 7, the side wall of the connecting rod 7 is in sliding connection with the inner wall of the limit rod 9 and the upper end of the connecting seat 10 is fixed; the left and right plates of the treatment box 1 are provided with discharge grooves 21 sliding with the movable plates 24, the movable plates 24 are in sliding connection with the inner walls of the collection frames 28 due to discharging impurities in the collection frames 28, the inner walls of the upper ends of the side plates of the collection frames 28 are horizontally provided with guide grooves 29 sliding with guide blocks 30, the cross sections of the guide blocks 30 are L-shaped, the guide blocks 30 are fixed with the inner walls of the movable plates 24 on the left side, the guide blocks 30 and the guide grooves 29 ensure the horizontal movement of the movable plates 24, the outer walls of the movable plates 24 are fixed with sealing gaskets 22, so that the discharge grooves 21 and the movable plates 24 are subjected to sealing treatment to prevent liquid from flowing out, the center of the two movable plates 24 is horizontally fixed with a connecting shaft 23, the right end of the connecting shaft 23 is fixedly provided with a push-pull rod 19 positioned on the outer side of the treatment box 1, the push-pull rod 19 is movably connected with a fixing component, the fixing component comprises a fixing plate 15, the fixing plate 15 is horizontally fixed with the right wall of the treatment box 1, the fixing plate 15 is positioned above a discharge groove 21, the fixing plate 15 is vertically connected with a threaded rod 16 in a threaded manner, the lower end of the threaded rod 16 is fixedly provided with a bearing 18, the outer wall of the bearing 18 is fixedly provided with a limiting frame 20, the cross section of the limiting frame 20 is in an inverted U shape, the inner wall of the limiting frame 20 is attached to the inner wall of the push-pull rod 19, and the horizontal position of the push-pull rod 19 is limited, so that the movable plate 24 on the connecting shaft 23 is limited and fixed, the top surface of the limiting frame 20 is vertically fixed with a guide rod 17 which is in sliding connection with the fixing plate 15, and the cross section of the guide rod 17 is in a T shape, so that the limiting frame 20 can vertically move.

The working principle of the utility model is as follows:

Referring to the attached drawings 1-6 of the specification, when impurities on the filter plate 26 are cleaned, two motors 31 are started, the two motors 31 run synchronously, the rotation speed is the same, the output end of each motor 31 drives a rotating shaft 11 to rotate on a connecting seat 10, the rotating shaft 11 drives a gear 12 to rotate on a rack 13, so that the two connecting seats 10 move oppositely, the connecting seat 10 drives a limiting rod 9 to slide in a limiting groove 8, meanwhile, the connecting seat 10 drives a connecting block 14 to slide in the connecting groove 6, the connecting block 14 drives a vertical rod 25 to move, the vertical rod 25 drives a cleaning rod 27 to slide on the filter plate 26 to push and push the impurities on the filter plate 26 into a collecting frame 28, when the top surfaces of the cleaning rod 27 and the collecting frame 28 are completely contacted, namely, the limiting rod 9 moves to the maximum limit, the motors 31 are closed, a cylinder 3 is started, and the movable end of the cylinder 3 drives the connecting rod 7 to slide upwards on the fixing frame 2, the limiting groove 8 on the connecting rod 7 moves upwards through the connecting seat 10 when the limiting rod 9 passes through, the connecting seat 10 is connected with the connecting groove 6 through the connecting block 14, and the shape of the connecting block 14 and the connecting groove 6 enables the movable rod 5 to move upwards in the through groove 4 to slide, so that the movable rod 5 cannot be separated from the through groove 4, the movable rod 5 is prevented from horizontally displacing in the cleaning process, the connecting block 14 drives the vertical rod 25 to enable the cleaning rod 27 to move upwards to be separated from the filter plate 26, impurities which are not cleaned up are prevented from being pushed to one side far away from the collecting frame 28 when the cleaning rod 27 is restored to the original position, after the cleaning rod 27 is separated from the filter plate 26, the motor 31 is started, the two cleaning rods 27 are separated from each other to move back to the upper part of the original position, the cleaning rod 27 is enabled to be contacted with the filter plate 26 through the movable end of the cylinder 3 to complete cleaning, synchronous cleaning is realized, and efficiency is improved and labor is not wasted; when the cleaning is carried out again, the cleaning device can clean the waste water, the principle is the same as above; when excessive impurities are collected in the collecting frame 28, the threaded rod 16 rotates and moves upwards in the fixed plate 15, the lower end of the threaded rod 16 rotates in the limiting frame 20 through the bearing 18, the limiting frame 20 moves upwards to be separated from the push-pull rod 19, meanwhile, the limiting frame 20 drives the guide rod 17 to slide on the fixed plate 15, the limiting frame 20 can move vertically, the horizontal limit of the push-pull rod 19 is relieved, the limiting frame 20 is positioned above the discharge groove 21, then the push-pull rod 19 is pulled to drive the connecting shaft 23 to move, the connecting shaft 23 drives the movable plate 24 to slide in the collecting frame 28 to push the impurities, the impurities are discharged from the right discharge groove 21 to the treatment box 1, meanwhile, the movable plate 24 on the left side drives the guide block 30 to slide in the guide groove 29, when the guide block 30 moves to the maximum limit in the guide groove 29, the push-pull rod 19 is pushed again, the impurities which are not cleaned out of the treatment box 1 are discharged from the left discharge groove 21, the impurities in the collecting frame 28 are prevented from being pushed to be discharged, and after the cleaning of the impurities in the push-pull frame 28 is finished, the horizontal limit of the guide rod 19 is carried out through the fixed assembly to carry out the horizontal limit limiting and the impurities are removed from the collecting frame 28, and the impurities are not required to be cleaned; the problems that when impurities on a filter plate are cleaned, push-pull handles on two sides are respectively pushed to enable the push plate to push the impurities on the filter plate into the collecting frame, the push plate cannot be moved simultaneously, the push plate is troublesome and the efficiency is low are solved, and the problems that when the push-pull handles on two sides are simultaneously pushed, the push plate pushes the impurities on the filter plate into the collecting frame, and the operation is laborious due to the fact that a treatment box has a certain size are solved.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. A filtering device for wastewater treatment comprises a treatment box (1), and is characterized in that a filtering plate (26) is fixed on the inner wall of the treatment box (1), a collecting frame (28) is fixed in the middle of the filtering plate (26), a cleaning rod (27) is slidably arranged on the top surface of the filtering plate (26), a vertical rod (25) is fixed on the top surface of the cleaning rod (27), a connecting block (14) slidably connected with a movable rod (5) is fixed at the upper end of the vertical rod (25), a connecting seat (10) positioned above the treatment box (1) is fixed on the top surface of the connecting block (14), a rotating shaft (11) horizontally rotates on the connecting seat (10), a motor (31) fixed with the connecting seat (10) is fixed at one end of the rotating shaft (11), a gear (12) meshed with a rack (13) is fixed on the rotating shaft (11), a connecting rod (7) fixed with a cylinder (3) is horizontally fixed on the top surface of the rack (13), a limit groove (8) slidably connected with the limit rod (9) is horizontally arranged on the side wall of the fixing frame (2) fixed on the top surface of the treatment box (1), a limit rod (9) and a right discharge groove (24) is arranged on the left side of the treatment box (1), the inner walls of the movable plates (24) and the collecting frame (28) are in sliding connection, sealing gaskets (22) are fixed on the outer walls of the movable plates (24), connecting shafts (23) are horizontally fixed at the centers of the two movable plates (24), push-pull rods (19) positioned on the outer sides of the treatment boxes (1) are fixed at the right ends of the connecting shafts (23), and fixing components are movably connected with the push-pull rods (19).

2. The filtering device for wastewater treatment according to claim 1, wherein the cross section of the collecting frame (28) is U-shaped, the top surface of the collecting frame (28) and the top surface of the filtering plate (26) are positioned on the same horizontal plane, and a plurality of water filtering holes are formed in the collecting frame (28).

3. The filtering device for wastewater treatment according to claim 1, wherein two cleaning rods (27) are arranged, the two cleaning rods (27) are respectively arranged on the front side and the rear side of the collecting frame (28), the two end walls of the cleaning rods (27) are in sliding connection with the inner wall of the treatment box (1), and the vertical rods (25) are fixed with the center of the top surface of the cleaning rods (27).

4. The filtering device for wastewater treatment according to claim 1, wherein the center of the top plate of the treatment box (1) is horizontally provided with a through groove (4), the movable rod (5) is movably connected with the through groove (4), the movable rod (5) is horizontally provided with a connecting groove (6) sliding with the connecting block (14), and the cross sections of the connecting groove (6) and the connecting block (14) are cross-shaped.

5. The filtering device for wastewater treatment according to claim 1, wherein the cross section of the connecting seat (10) is U-shaped, the bottom surface of the connecting seat (10) is slidably connected with the top surface of the movable rod (5), two ends of the rotating shaft (11) are respectively and horizontally rotatably connected with the left side plate and the right side plate of the connecting seat (10), the gear (12) is positioned on the outer side of the connecting seat (10), and motors (31) on the two connecting seats (10) are distributed in a central symmetry manner.

6. The filtering device for wastewater treatment according to claim 1, wherein the rack (13) is positioned on the upper side of the gear (12), four limiting grooves (8) are respectively formed on two side walls at the front end and the rear end of the connecting rod (7), the side walls of the connecting rod (7) are in sliding connection with the inner wall of the connecting seat (10), and the limiting rod (9) is fixed with the inner wall of the upper end of the connecting seat (10).

7. The filtering device for wastewater treatment according to claim 1, wherein the cross section of the fixing frame (2) is U-shaped, the fixing frame (2) is fixed at the center of the top surface of the treatment box (1), the fixing frame (2) is positioned at the outer side of the connecting rod (7), the inner wall of the fixing frame (2) is in sliding connection with the two end walls of the connecting rod (7), and the two cylinders (3) are respectively positioned at the two ends of the upper rod of the fixing frame (2).

8. The filtering device for wastewater treatment according to claim 1, wherein guide grooves (29) sliding with guide blocks (30) are horizontally formed in the inner walls of the upper ends of the side plates of the collecting frame (28), the cross sections of the guide blocks (30) are L-shaped, and the guide blocks (30) are fixed to the inner walls of the left movable plate (24).

9. The filtering device for wastewater treatment according to claim 1, wherein the fixing component comprises a fixing plate (15), the fixing plate (15) is horizontally fixed with the right wall of the treatment box (1), the fixing plate (15) is positioned above the discharge groove (21), a threaded rod (16) is vertically connected with the fixing plate (15) in a threaded manner, a bearing (18) is fixed at the lower end of the threaded rod (16), a limiting frame (20) is fixed on the outer wall of the bearing (18), the cross section of the limiting frame (20) is in an inverted U shape, the inner wall of the limiting frame (20) is attached to the inner wall of the push-pull rod (19), a guide rod (17) in sliding connection with the fixing plate (15) is vertically fixed on the top surface of the limiting frame (20), and the cross section of the guide rod (17) is in a T shape.