Automatic slag removal device for rotary fine screen

Abstract

The utility model relates to the technical field of water treatment engineering, and discloses a rotary fine grid automatic slag removal device which comprises a base frame, the bottom of the base frame is fixedly connected with a support plate and an assembly structure, the assembly structure is arranged on the wall face of the base frame and used for being assembled with the base frame, and the assembly structure comprises an installation groove, a butt joint rail, a sliding block, a butt joint plate and an upper bolt. The mounting groove is formed in the rear wall face of the capsule-shaped plate of the base frame, the butt joint rail is fixedly connected to the position, above the mounting groove, of the top of the base frame, the sliding block is slidably connected into the mounting groove, the same rotating shafts are rotationally connected to the side wall face of the sliding block, and the fine grid belt can be connected to the arc faces of the two rotating shafts in a sleeving mode at the same time. The butt joint plate is fixedly connected to the top of the side wall face of the sliding block, the upper bolt is in threaded connection to the top of the butt joint plate, the assembling structure can achieve rapid assembling and disassembling so that the device can be conveniently transported, the distance between the two rotating shafts can be adjusted, and the device can adapt to different working scenes.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment engineering, specifically, it relates to an automatic slag removal device for a rotary fine screen. Background Technology

[0002] A rotary fine screen cleaner is a pretreatment device used in wastewater or industrial water treatment processes. It is mainly used to intercept and remove fine suspended solids, fibers, hair, plastics and other solid impurities in the water flow to protect the stable operation of subsequent treatment equipment.

[0003] In commonly used fine screen cleaning machines, the basic structure is assembled into the cleaning machine body by a large number of bolts. However, due to the difficulty of disassembling and assembling, the commonly used cleaning machines are usually transported as a whole. The whole cleaning machine occupies a lot of space, which means that only a small number of cleaning machines can be transported on the vehicle at a time. Therefore, there is an urgent need for a rotary fine screen automatic cleaning device that can be quickly assembled and disassembled for transportation.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] To solve the technical problem of difficult disassembly and assembly of commonly used slag cleaning machines, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An automatic slag removal device for rotary fine screens includes:

[0007] The base frame consists of a rectangular plate at the bottom and a capsule-shaped plate standing on the left side of the rectangular plate. A support plate is fixedly connected to the bottom of the base frame. The support plate is rectangular and has multiple threaded holes evenly distributed at the bottom. A rotating shaft is rotatably connected to the top of the rectangular plate of the base frame. The rotating shaft is cylindrical and rotates on the side wall of the capsule-shaped plate. A fine grid belt is fitted onto the wall of the rotating shaft. A motor that drives the rotating shaft is installed on the outer wall of the base frame. A small cylinder is installed on the end of the rotating shaft on the wall of the base frame.

[0008] The flap is movably connected to the rectangular plate side wall of the base frame. The flap is capsule-shaped and has a docking groove on its side wall. The docking groove is capsule-shaped and its position corresponds to the pivot of the base frame wall. The small cylinder of the pivot can rotate within the corresponding docking groove.

[0009] The assembled structure is arranged on the wall surface of the base frame for assembling with the base frame, and comprises a mounting groove, a butt joint rail, a sliding block, a butt joint plate and an upper bolt, the mounting groove is arranged on the rear wall surface of the capsule-shaped plate of the base frame, the butt joint rail is fixedly connected to the top of the base frame above the mounting groove, the sliding block is slidingly connected in the mounting groove, the same rotating shaft is rotatably connected to the side wall surface of the sliding block, the fine grid belt can be sleeved on the arc surfaces of the two rotating shafts, the butt joint plate is fixedly connected to the top of the side wall surface of the sliding block, and the upper bolt is threadedly connected to the top of the butt joint plate.

[0010] As a preferred embodiment of the utility model, the sliding block is a block with a concave section, the opening at the top of the sliding block can be clamped with the wall surface of the base frame above the mounting groove, the butt joint plate is below the butt joint rail, the butt joint plate can be attached to the bottom of the butt joint rail, the butt joint rail is a rectangular plate, the top of the butt joint rail and the top of the butt joint plate are respectively provided with a round hole matched with the upper bolt, a plurality of same round holes are uniformly arranged on the top of the butt joint rail, and the upper bolt can be threadedly connected with the round hole on the top of the butt joint plate.

[0011] As a preferred embodiment of the utility model, the assembled structure further comprises an anti-falling groove, a lock groove, a sliding ring and a lock block, the anti-falling groove is arranged on the wall surface of the base frame below the mounting groove, the lock groove is arranged through the side wall surface of the sliding block, the same lock groove is also arranged on the capsule-shaped plate of the base frame, a plurality of same lock grooves are uniformly arranged on the wall surface of the base frame, the number of the lock grooves on the wall surface of the base frame is consistent with the number of the round holes on the wall surface of the butt joint rail, the sliding ring is sleeved on the wall surface of the rotating shaft at the sliding block, and the lock block is fixedly connected to the wall surface of the sliding ring in the direction of the sliding block.

[0012] As a preferred embodiment of the utility model, the anti-falling groove is a groove with an inverted isosceles trapezoidal section, the bottom of the sliding block is fixedly connected with an inverted isosceles trapezoidal block, the anti-falling groove can slide with the inverted isosceles trapezoidal block at the bottom of the sliding block, the lock block is a half-capsule-shaped block, the lock block can pass through the lock groove, the top of the lock block is also provided with a round hole consistent with the wall surface of the butt joint plate, and the sliding ring is a circular ring, and the arc surface of the rotating shaft can be matched with the cavity of the sliding ring.

[0013] As a preferred embodiment of the utility model, the wall surface of the base frame is further provided with an inspection structure, the inspection structure comprises a hinged frame, a turnover column and a side screw hole, the hinged frame is fixedly connected to the side wall surface of the rectangular plate of the base frame, the hinged frame is a U-shaped frame, a circular groove is symmetrically arranged in the opening of the hinged frame, the turnover column is a cylindrical column, the turnover column can be rotatably connected in the symmetrical circular grooves in the opening of the hinged frame, the top of the turnover column can be fixedly connected with the bottom of the turnover plate, and the side screw hole is arranged on the side wall surface of the turnover plate above the butt joint groove.

[0014] As a preferred embodiment of the utility model, the overhauling structure further comprises an insertion frame, a rotating wheel, a connecting plate and a side bolt, the insertion frame is clamped in the butt joint groove, the rotating wheel is rotationally connected to the wall surface of the insertion frame, the connecting plate is fixedly connected to the side wall surface of the insertion frame, and the side bolt is threadedly connected to the side wall surface of the connecting plate.

[0015] As a preferred embodiment of the utility model, the insertion frame is in the shape of a crescent block, the side wall surface of the insertion frame is provided with an opening adapted to the rotation of the rotating wheel, the rotating wheel is in the shape of a round wheel, the arc surface of the rotating wheel can be in contact with the small cylinder of the wall surface of the rotating shaft, the connecting plate is in the shape of a half capsule plate, the side wall surface of the connecting plate is provided with the same side screw hole, the side screw hole of the wall surface of the connecting plate can be aligned with the side screw hole of the wall surface of the turning plate, and the side bolt can pass through the two side screw holes at the same time and be threadedly connected with all the side screw holes.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The assembly structure can realize quick assembly and disassembly, thereby facilitating the transportation of the device, and the distance between the two rotating shafts is adjustable, thereby being able to adapt to different working scenes.

[0018] 2. The overhauling structure can realize quick disassembly of the device, and the device can be overhauled through the turning of the turning plate.

[0019] The specific embodiments of the utility model will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings:

[0021] Figure 1 It is a perspective view of the utility model;

[0022] Figure 2 It is a bottom view of the utility model;

[0023] Figure 3 It is an exploded view of the base frame and the sliding block of the utility model;

[0024] Figure 4 It is an exploded view of the sliding ring and the sliding block of the utility model;

[0025] Figure 5 It is an exploded view of the turning plate and the base frame of the utility model.

[0026] In the figure: 20, base frame; 21, support plate; 22, rotating shaft; 23, fine grid belt; 24, hinged frame; 25, turnover column; 26, flap; 27, butt joint groove; 28, side screw hole; 30, mounting groove; 31, anti-falling groove; 32, butt joint rail; 33, sliding block; 34, butt joint plate; 35, lock groove; 36, upper bolt; 37, slip ring; 38, lock block; 40, insertion frame; 41, rotating wheel; 42, connecting plate; 44, side bolt. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model.

[0028] As shown in Figure 1 and Figure 2 , a rotary fine grid automatic slag cleaning device comprises a base frame 20, the base frame 20 is composed of a rectangular plate at the bottom and a capsule-shaped plate standing on the left side of the rectangular plate, the bottom of the base frame 20 is fixedly connected with a support plate 21, the support plate 21 is a rectangular plate, a plurality of threaded holes are uniformly formed in the bottom of the support plate 21, a rotating shaft 22 is rotatably connected above the rectangular plate of the base frame 20, the rotating shaft 22 is in the shape of a cylinder, the side wall surface of the rotating shaft 22 rotates on the side wall surface of the capsule-shaped plate of the rotating shaft 22, a fine grid belt 23 is sleeved on the wall surface of the rotating shaft 22, a motor for driving the rotating shaft 22 to rotate is installed on the outer wall surface of the base frame 20, a small cylinder is installed on the end of the rotating shaft 22 of the wall surface of the base frame 20;

[0029] A flap 26 is movably connected to the side wall surface of the rectangular plate of the base frame 20, the flap 26 is in the shape of a capsule-shaped plate, a butt joint groove 27 is formed in the side wall surface of the flap 26, the butt joint groove 27 is in the shape of a capsule-shaped groove, the position of the butt joint groove 27 corresponds to the rotating shaft 22 of the wall surface of the base frame 20, the small cylinder of the rotating shaft 22 can rotate in the corresponding butt joint groove 27, the motor is electrically connected with the power supply, the bottom of the support plate 21 is connected with the electric cylinder through a threaded groove, which is a prior art, so it will not be described here.

[0030] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the assembly structure is arranged on the wall of the base frame 20 for assembly with the base frame 20, and the assembly structure comprises: a mounting groove 30, a butt joint rail 32, a sliding block 33, a butt joint plate 34 and an upper bolt 36, the mounting groove 30 is opened on the rear wall of the capsule-shaped plate of the base frame 20, the butt joint rail 32 is fixedly connected to the top of the base frame 20 above the mounting groove 30, the sliding block 33 is slidingly connected in the mounting groove 30, the same rotating shaft 22 is rotatably connected to the side wall of the sliding block 33, the fine grid belt 23 can be simultaneously sleeved on the arc surfaces of the two rotating shafts 22, the butt joint plate 34 is fixedly connected to the top of the side wall of the sliding block 33, and the upper bolt 36 is threadedly connected to the top of the butt joint plate 34.

[0031] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the sliding block 33 is a block with a concave cross section, the opening at the top of the sliding block 33 can be clamped with the wall of the base frame 20 above the mounting groove 30, the butt joint plate 34 is located below the butt joint rail 32, the butt joint plate 34 can be attached to the bottom of the butt joint rail 32, the butt joint rail 32 is a rectangular plate, the top of the butt joint rail 32 and the top of the butt joint plate 34 are respectively provided with a circular hole matched with the upper bolt 36, a plurality of same circular holes are uniformly provided on the top of the butt joint rail 32, the upper bolt 36 can be threadedly connected with the circular hole on the top of the butt joint plate 34, the assembly structure further comprises an anti-disengagement groove 31, a locking groove 35, a sliding ring 37 and a locking block 38, the anti-disengagement groove 31 is opened on the wall of the base frame 20 below the mounting groove 30, the locking groove 35 is opened through the side wall of the sliding block 33, the same locking groove 35 is also opened on the capsule-shaped plate of the base frame 20, a plurality of same locking grooves 35 are uniformly opened on the wall of the base frame 20, the number of the locking grooves 35 on the wall of the base frame 20 is consistent with the number of the circular holes on the wall of the butt joint rail 32, the sliding ring 37 is sleeved on the wall of the rotating shaft 22 at the sliding block 33, and the locking block 38 is fixedly connected to the wall of the sliding ring 37 in the direction towards the sliding block 33, the anti-disengagement groove 31 is a groove with an inverted isosceles trapezoidal cross section, the bottom of the sliding block 33 is fixedly connected with an inverted isosceles trapezoidal block, the anti-disengagement groove 31 can slide with the inverted isosceles trapezoidal block at the bottom of the sliding block 33, the locking block 38 is a half-capsule-shaped block, the locking block 38 can pass through the locking groove 35, the top of the locking block 38 is also provided with a circular hole consistent with the wall of the butt joint plate 34, the sliding ring 37 is a circular ring, and the arc surface of the rotating shaft 22 can be matched in the cavity of the sliding ring 37;

[0032] In specific use, the device is placed in the water flow to be filtered through the electric cylinder combined with the support plate 21 at the bottom, and the power of the motor on the wall of the base frame 20 is started. The motor can drive the rotating shaft 22 on the wall of the base frame 20 to rotate when the power is turned on, and the rotation of the rotating shaft 22 can drive the fine grid belt 23 to cooperate with the rotating shaft 22 on the wall of the sliding block 33 to transmit power. The fine grid belt 23 can filter the water flow when transmitting power, and the fine grid belt 23 can separate the impurities in the water flow. When the device needs to be disassembled, the upper bolt 36 is unscrewed from the wall of the butt rail 32 and the butt plate 34, then the sliding ring 37 is pushed in the opposite direction of the sliding block 33, the sliding ring 37 can drive the lock block 38 to separate from the corresponding lock slot 35 when moving, then the side bolt 44 is unscrewed from the wall of the connecting plate 42, and then the connecting plate 42 is moved to drive the insertion frame 40 and the rotating wheel 41 to separate from the butt slot 27, finally the flap 26 is pulled down, and the flap 26 can be flipped down with the rotating column 25 as the center. At this time, the fine grid belt 23 can be removed from the wall of the rotating shaft 22, and the sliding block 33 can be removed from the mounting slot 30. When assembling, the sliding block 33 is slid in the mounting slot 30, the position of the rotating shaft 22 on the wall of the sliding block 33 is determined, the sliding ring 37 is pushed in the direction of the sliding block 33, the sliding ring 37 can drive the lock block 38 to enter the lock slot 35 on the wall of the sliding block 33 and the base frame 20, the upper bolt 36 is screwed into the circular groove on the wall of the butt plate 34, and the upper bolt 36 also enters the circular groove on the top of the lock block 38 to fix the position of the lock block 38. After the position of the sliding block 33 is installed, the fine grid belt 23 is sleeved on the arc surfaces of the two rotating shafts 22, the flap 26 is flipped up to be vertical, the small cylinder on the wall of the rotating shaft 22 is clamped in the butt slot 27, and finally the insertion frame 40 is inserted into the space above the butt slot 27, and the side bolt 44 is screwed into the side screw hole 28 on the wall of the connecting plate 42 and the flap 26. Thus, the assembly is completed.

[0033] As described above, the assembly structure can realize quick assembly and disassembly to facilitate transportation of the device, and the distance between the two rotating shafts 22 is adjustable to adapt to different working scenarios.

[0034] As Figure 1 , Figure 2 and Figure 5As shown, the wall surface of the base frame 20 is also provided with an inspection structure, which includes a hinged frame 24, a turnover column 25 and a side screw hole 28, the hinged frame 24 is fixedly connected to the rectangular plate side wall surface of the base frame 20, the hinged frame 24 is a character-shaped frame, a circular groove is symmetrically formed in the opening of the hinged frame 24, the turnover column 25 is in a cylindrical shape, the turnover column 25 can be rotatably connected to the symmetric circular grooves in the opening of the hinged frame 24, the top of the turnover column 25 can be fixedly connected to the bottom of the turnover plate 26, the side screw hole 28 is formed in the side wall surface of the turnover plate 26 above the butt joint groove 27, the inspection structure further includes an insert frame 40, a rotating wheel 41, a connecting plate 42 and a side bolt 44, the insert frame 40 is clamped in the butt joint groove 27, the rotating wheel 41 is rotatably connected to the wall surface of the insert frame 40, the connecting plate 42 is fixedly connected to the side wall surface of the insert frame 40, and the side bolt 44 is threadedly connected to the side wall surface of the connecting plate 42, the insert frame 40 is in a crescent shape, the side wall surface of the insert frame 40 is provided with an opening adapted to the rotation of the rotating wheel 41, the rotating wheel 41 is in a circular shape, the arc surface of the rotating wheel 41 can be in contact with the small cylinder of the wall surface of the rotating shaft 22, the connecting plate 42 is in a half-capsule shape, the side wall surface of the connecting plate 42 is provided with the same side screw hole 28, the side screw hole 28 of the wall surface of the connecting plate 42 can be aligned with the side screw hole 28 of the wall surface of the turnover plate 26, and the side bolt 44 can pass through the two side screw holes 28 at the same time and be threadedly connected with all the side screw holes 28;

[0035] In specific use, the upper bolt 36 is unscrewed from the wall surface of the butt joint rail 32 and the butt joint plate 34, then the sliding ring 37 is pushed in the opposite direction of the sliding block 33, the sliding ring 37 can drive the lock block 38 to separate from the corresponding lock groove 35 during movement, then the side bolt 44 is unscrewed from the wall surface of the connecting plate 42, the insert frame 40 and the rotating wheel 41 are separated from the butt joint groove 27 by moving the connecting plate 42, and finally the turnover plate 26 is pulled downward, the turnover plate 26 can be turned downward around the turnover column 25, at this time, the side ends of the two rotating shafts 22 and the fine grid belt 23 are completely exposed, and the device can be inspected;

[0036] In summary, the inspection structure can realize quick disassembly of the device and facilitate inspection of the device by turning the turnover plate 26.

[0037] Working principle: when the device needs to be disassembled, the upper bolt 36 is unscrewed from the wall surface of the butt joint rail 32 and the butt joint plate 34, then the sliding ring 37 is pushed in the opposite direction of the sliding block 33, the sliding ring 37 can drive the lock block 38 to separate from the corresponding lock groove 35 during movement, then the side bolt 44 is unscrewed from the wall surface of the connecting plate 42, the insert frame 40 and the rotating wheel 41 are separated from the butt joint groove 27 by moving the connecting plate 42, and finally the turnover plate 26 is pulled downward, the turnover plate 26 can be turned downward around the turnover column 25, at this time, the side ends of the two rotating shafts 22 and the fine grid belt 23 are completely exposed, and the device can be inspected.

[0038] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. A rotary fine screen automatic sludge cleaning device, characterized by, The utility model relates to a kind of base frame (20), base frame (20) is made of lower rectangular plate and capsule-shaped plate standing on the left side of rectangular plate, the bottom of base frame (20) is fixedly connected with support plate (21), support plate (21) is rectangular plate, multiple threaded holes are evenly provided on the bottom of support plate (21), the upper side of the rectangular plate of base frame (20) is rotatably connected with rotating shaft (22), rotating shaft (22) is cylindrical, the side wall surface of rotating shaft (22) is rotatable on the side wall surface of the capsule-shaped plate of rotating shaft (22), fine grid belt (23) is sleeved on the wall surface of rotating shaft (22), motor for driving rotating shaft (22) rotation is installed on the outer side wall surface of base frame (20), small cylinder is installed on the end of the wall surface of rotating shaft (22) of base frame (20); Flap (26) is movably connected on the side wall surface of the rectangular plate of base frame (20), flap (26) is capsule-shaped plate, butt joint groove (27) is provided on the side wall surface of flap (26), butt joint groove (27) is capsule-shaped groove, the position of butt joint groove (27) corresponds with the rotating shaft (22) of the wall surface of base frame (20), the small cylinder of rotating shaft (22) can rotate in the corresponding butt joint groove (27); Assembly structure is arranged on the wall surface of base frame (20) for and base frame (20) assembly, and assembly structure includes: mounting groove (30), butt joint rail (32), sliding block (33), butt joint plate (34) and upper bolt (36), mounting groove (30) is provided on the rear wall surface of the capsule-shaped plate of base frame (20), butt joint rail (32) is fixedly connected on the top of base frame (20) above mounting groove (30), sliding block (33) is slidably connected in mounting groove (30), the same rotating shaft (22) is rotatably connected on the side wall surface of sliding block (33), fine grid belt (23) can be simultaneously sleeved on the arc surface of two rotating shafts (22), butt joint plate (34) is fixedly connected on the top of the side wall surface of sliding block (33), and upper bolt (36) is threadedly connected on the top of butt joint plate (34). The sliding block (33) is a block with a concave section, the opening on the top of the sliding block (33) can be clamped with the wall surface of base frame (20) above mounting groove (30), the butt joint plate (34) is located below butt joint rail (32), the butt joint plate (34) can be attached to the bottom of butt joint rail (32), the butt joint rail (32) is rectangular plate, a round hole adapted to the upper bolt (36) is respectively provided on the top of the butt joint rail (32) and the top of the butt joint plate (34), a plurality of same round holes are evenly provided on the top of the butt joint rail (32), and the upper bolt (36) can be threadedly connected with the round hole on the top of the butt joint plate (34).

2. A rotary fine screen automatic sludge cleaning device according to claim 1, characterized in that, ​ 3. The automatic slag cleaning device for rotary fine screen according to claim 1, characterized in that, The assembly structure further comprises an anti-falling groove (31), a locking groove (35), a sliding ring (37) and a locking block (38), the anti-falling groove (31) is opened on the wall surface of the base frame (20) below the mounting groove (30), the locking groove (35) is opened through the side wall surface of the sliding block (33), the same locking groove (35) is also opened on the capsule-shaped plate of the base frame (20), a plurality of the same locking grooves (35) are uniformly opened on the wall surface of the base frame (20), the number of the locking grooves (35) on the wall surface of the base frame (20) is consistent with the number of the round holes on the wall surface of the butt rail (32), the sliding ring (37) is sleeved on the wall surface of the rotating shaft (22) at the sliding block (33), and the locking block (38) is fixedly connected to the wall surface of the sliding ring (37) in the direction of the sliding block (33).

4. A rotary fine screen automatic sludge cleaning device according to claim 3, characterized in that, The anti-falling groove (31) is a groove with an inverted isosceles trapezoidal cross section, the bottom of the sliding block (33) is fixedly connected with an inverted isosceles trapezoidal block, the anti-falling groove (31) can slide with the inverted isosceles trapezoidal block at the bottom of the sliding block (33), the locking block (38) is a half-capsule-shaped block, the locking block (38) can pass through the locking groove (35), the top of the locking block (38) is also provided with a round hole consistent with the wall surface of the butt plate (34), the sliding ring (37) is a circular ring, and the cavity of the sliding ring (37) can accommodate the arc surface of the rotating shaft (22).

5. The automatic slag cleaning device for rotary fine screen according to claim 1, characterized in that, The wall surface of the base frame (20) is further provided with an inspection structure, the inspection structure comprises a hinged frame (24), a turnover column (25) and a side screw hole (28), the hinged frame (24) is fixedly connected to the side wall surface of the rectangular plate of the base frame (20), the hinged frame (24) is a character-shaped frame, a circular groove is symmetrically opened in the opening of the hinged frame (24), the turnover column (25) is a circular column, the turnover column (25) is rotatably connected in the symmetrical circular grooves in the opening of the hinged frame (24), the top of the turnover column (25) can be fixedly connected with the bottom of the flap (26), and the side screw hole (28) is opened on the side wall surface of the flap (26) above the butt groove (27).

6. A rotary fine screen automatic sludge cleaning device according to claim 5, characterized in that, The inspection structure further comprises an insertion frame (40), a rotating wheel (41), a connecting plate (42) and a side bolt (44), the insertion frame (40) is clamped in the butt groove (27), the rotating wheel (41) is rotatably connected to the wall surface of the insertion frame (40), the connecting plate (42) is fixedly connected to the side wall surface of the insertion frame (40), and the side bolt (44) is threadedly connected to the side wall surface of the connecting plate (42).

7. A rotary fine screen automatic sludge cleaning device according to claim 6, characterized in that The insertion frame (40) is a crescent-shaped block, the side wall surface of the insertion frame (40) is provided with an opening suitable for rotation of the rotating wheel (41), the rotating wheel (41) is a circular wheel, the arc surface of the rotating wheel (41) can be in contact with the small circular column of the wall surface of the rotating shaft (22), the connecting plate (42) is a half-capsule-shaped plate, the side wall surface of the connecting plate (42) is provided with the same side screw hole (28), the side screw hole (28) on the wall surface of the connecting plate (42) can be aligned with the side screw hole (28) on the wall surface of the flap (26), and the side bolt (44) can pass through the two side screw holes (28) at the same time and be threadedly connected with all the side screw holes (28).

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