阅读说明：本技术 一种污水处理装置 (Sewage treatment device ) 是由 吴彩 于 2021-08-27 设计创作，主要内容包括：本发明一种污水处理装置包括箱体(101),其包括侧板(102)和底板(103),所述侧板配置进水口(104),所述底板(103)配置出水口(105)；过滤网(106),其配置在底板(103)上部以过滤污泥；存储箱(107),其与侧板(102),其固定用于存放污水处理剂；扇片(109),其配置在箱体(101)内；搅拌机构(200),其通过电机(201)驱动扇片(109)摆动。本发明通过电机(201)驱动搅拌机构(200)使扇片(109)左右180°摆动,使污水不断搅动,充分将污水和污水处理剂混合,从而提高污水处理效率,提高污水的处理效果。(The invention relates to a sewage treatment device, which comprises a box body (101), a water inlet pipe (104) and a water outlet pipe (105), wherein the box body comprises a side plate (102) and a bottom plate (103); a filter screen (106) disposed above the bottom plate (103) to filter sludge; a storage box (107) which is fixed with the side plate (102) and used for storing sewage treatment agent; a fan (109) disposed in the case (101); and the stirring mechanism (200) drives the fan blade (109) to swing through a motor (201). According to the invention, the motor (201) drives the stirring mechanism (200) to enable the fan blades (109) to swing at 180 degrees left and right, so that sewage is continuously stirred, and the sewage is fully mixed with a sewage treatment agent, thereby improving the sewage treatment efficiency and improving the sewage treatment effect.)

1. A sewage treatment device is characterized in that: comprises that

A box body (101) comprising a side plate (102) and a bottom plate (103), wherein the side plate is provided with a water inlet (104), and the bottom plate (103) is provided with a water outlet (105);

a filter screen (106) disposed above the bottom plate (103) to filter sludge;

a storage box (107) which is fixed with the side plate (102) and used for storing sewage treatment agent;

a fan (109) disposed in the case (101),

and the stirring mechanism (200) drives the fan blade (109) to swing through a motor (201).

2. The sewage treatment apparatus according to claim 1, wherein: the stirring structure (200) comprises a motor (201), a motor output shaft (202), a crank (203), a first rack (204), a first guide rail (205), a first supporting rod (206), a first gear (207), a first rotating shaft (208), a second supporting rod (209) and a second rotating shaft (210);

the motor (201) is fixedly connected with a side plate (102), the motor output shaft (202) of the motor (201) is fixedly connected with one end of the crank (203), the other end of the crank (203) is connected with the hinge of the first rack (204), the first rack (204) moves along the first guide rail (205), the first guide rail (205) is fixedly connected with one end of the first supporting rod (206), the other end of the first supporting rod (206) is installed on the first gear (207) through a bearing, the first gear (207) is meshed with the first rack (204), the first gear (207) is in driving connection with the first rotating shaft (208), the first rotating shaft (208) is fixedly connected with one end of the second supporting rod (209), and the other end of the second supporting rod (209) is connected with the second rotating shaft (210), the second rotating shaft (210) is connected with the fan blade (109).

3. The sewage treatment apparatus according to claim 2, wherein: the first gear (207) is connected with the first rotating shaft (208) through a lifting mechanism (300) through the lifting mechanism (300), and the lifting mechanism (300) comprises a sleeve (301), a first pin shaft (302), a first guide hole (303), a second pin shaft (304), a limiting groove (305), a third support rod (306) and a first spring (307);

the first gear (207) is coaxially fixed with the first sleeve (301), the first sleeve (301) is sleeved with the first rotating shaft (208), the first rotating shaft (208) is fixed with one end of the first spring (307) through a bearing, the other end of the first spring (307) is fixed with the bottom of the first sleeve (301), the first rotating shaft (208) is fixed with one end of the first pin shaft (302) along the outer surface thereof, the other end of the first pin shaft (302) is configured in the first guide hole (303) and moves along the first guide hole, the first guide hole (303) is arranged on the first sleeve (301), the first rotating shaft (208) is provided with the limit groove (305) along the outer circumferential surface thereof, one end of the second pin shaft (304) moving along the limit groove (305) is configured in the limit groove (304), and the other end of the second pin shaft (304) is mounted on one end of the third support rod (306) through a bearing, the other end of the third limiting rod (306) is fixedly connected with the storage box (107).

4. A wastewater treatment plant according to claim 3 or 2, characterized in that: the second rotating shaft (210) is in driving connection with the fan blade (109) through the rotating mechanism (400), and the rotating mechanism (400) comprises a fifth gear (403), a gear ring (402), a worm (404), a second rack (405), a second guide rail (406) and a fourth support rod (407);

the second rotating shaft (210) is coaxially fixed with the fifth gear (403), the second rotating shaft (210) is mounted on a second supporting rod (209) through a bearing, the fifth gear (403) is meshed with the gear ring (402), the gear ring (402) is fixedly connected with a side plate (102), the second rotating shaft (210) is coaxially fixed with the worm (404), the worm (404) is meshed with the second rack (405), the second rack (405) moves along the second guide rail (406), the second guide rail (406) is fixedly connected with one end of the fourth supporting rod (407), the other end of the fourth supporting rod (407) is mounted at the end of the worm (404) through a bearing, and two ends of the second rack (405) are fixedly connected with the fan piece (109).

5. The sewage treatment apparatus according to claim 4, wherein: the sewage treatment device further comprises a gap discharging mechanism (500), wherein the gap discharging mechanism (500) comprises a cam (501), a fifth supporting rod (502), a u-shaped rod (503), a second spring (510), a sixth supporting rod (511), a first clamping hook (504), a second clamping hook (505), a ratchet wheel (506), a third rotating shaft (507), a circular disc (508), a circular hole (509) and a discharge hole (512);

the motor output shaft (202) is coaxially fixed with the cam (501), the end face of the cam (501) is overlapped with the surface of the fifth support rod (502), the fifth support rod (502) is fixedly connected with the u-shaped rod (503), the u-shaped rod (503) is hinged with the sixth support rod (511), the sixth support rod (511) is fixedly connected with the storage box (107), the first hook (504) and the second hook (505) are respectively fixed on two sides of the u-shaped rod (503), the first hook (504) or the second hook (505) can be overlapped with the ratchet teeth of the ratchet wheel (506), the ratchet wheel (506) is coaxially fixed with the third rotating shaft (507), the third rotating shaft (507) is installed on the storage box (109) through a bearing, and the third rotating shaft (507) is coaxially fixed with the disc (508), the round holes (509) are uniformly formed in the disc (508), the round holes (509) can be attached to the discharge port (512), and the discharge port (512) is formed in the bottom of the storage box (107).

6. The sewage treatment apparatus according to claim 5, wherein: the sewage treatment device further comprises a cleaning mechanism (600), wherein the cleaning mechanism (600) comprises a third gear (601), a third rack (602), a third guide rail (603), a first scraper (604), a top plate (605), a cover plate (606), a fourth guide rail (607), a third spring (608), a fourth rack (609), a fifth guide rail (610), a second scraper (611), a second through hole (620) and a collecting box (621);

the first rotating shaft (208) is coaxially fixed with the third gear (601), the third gear (601) is meshed with the third rack (602), the third rack (602) moves along the third guide rail (603), the third guide rail (603) is fixedly connected with the filter screen (106), the third rack (602) is fixedly connected with the first scraper (604), the first scraper (604) is fixedly connected with the top plate (605), the top plate (605) can be lapped with one side of the cover plate (606), the cover plate (606) moves along the fourth guide rail (607), the fourth guide rail (607) is fixedly connected with the filter screen (106), the filter screen (106) is provided with the second through hole (620), the collecting box (621) is arranged under the second through hole (620), and the collecting box (621) is fixedly connected with the side plate (102), the other side of the cover plate (606) is fixedly connected with one end of the third spring (608), the other end of the third spring (608) is fixedly connected with the side plate (102), the third gear (601) can also be meshed with the fourth rack (609), the fourth rack (609) moves along the fifth guide rail (610), the fifth guide rail (510) is fixedly connected with the filter screen (106), and the fourth rack (609) is fixedly connected with the second scraper (611);

and the structural body consisting of the two groups of top plates (605), the cover plate (606), the fourth guide rail (607), the third spring (608), the second through hole (620) and the collecting box (621) is symmetrically arranged around the center of the third gear (602).

7. The sewage treatment apparatus according to claim 6, wherein: the first rack (204) is provided with a dovetail-shaped sliding block, and the first guide rail (205) is provided with a dovetail groove.

8. The sewage treatment apparatus according to claim 7, wherein: the limiting groove (305) is n-shaped.

Technical Field

The invention relates to the field of water treatment, in particular to a device for sewage treatment.

Background

The sewage generated in industrial production and urban life is increasingly serious, so the treatment of the sewage is concerned more and more, the existing sewage treatment equipment has low working efficiency, the sewage decontamination effect is not ideal, the sewage quantity is more and more, and a sewage device with high working efficiency and obvious decontamination effect is urgently needed.

Disclosure of Invention

The invention aims to provide a sewage device with high working efficiency and obvious decontamination effect.

The invention relates to a sewage treatment device, which comprises a box body, a water inlet, a water outlet and a water outlet, wherein the box body comprises a side plate and a bottom plate;

a filter net disposed on the upper portion of the base plate to filter sludge;

the storage box is fixed with the side plate and used for storing the sewage treatment agent;

a fan blade disposed in the case;

and the stirring mechanism drives the fan blade to swing through the motor.

The invention relates to a sewage treatment device, wherein a stirring mechanism comprises a motor, a motor output shaft, a crank, a first rack, a first guide rail, a first supporting rod, a first gear, a first rotating shaft, a second supporting rod and a second rotating shaft;

the motor is fixedly connected with the side plate, the motor has a motor output shaft fixedly connected with one end of a crank, the other end of the crank is connected with a hinge of a first rack, the first rack is along the first guide rail moves, the first guide rail is fixedly connected with one end of a first supporting rod, the other end of the first supporting rod is installed on a first gear through a bearing, the first gear is connected with the first rack in a meshed mode, the first gear is connected with a first rotating shaft in a driving mode, the first rotating shaft is fixedly connected with one end of a second supporting rod, the other end of the second supporting rod is connected with a second rotating shaft, and the second rotating shaft is connected with a fan blade.

The invention relates to a sewage treatment device, wherein a first gear is connected with a first rotating shaft through a lifting mechanism, and the lifting mechanism comprises a sleeve, a first pin shaft, a first guide hole, a second pin shaft, a limiting groove, a third support rod and a first spring;

the first gear is coaxially fixed with the first sleeve, the first sleeve is sleeved with the first rotating shaft, one end of the first spring is fixed on the first rotating shaft through a bearing, the other end of the first spring is fixed with the bottom of the first sleeve, one end of the first pin shaft is fixed on the first rotating shaft along the outer surface of the first rotating shaft, the other end of the first pin shaft is arranged in the first guide hole and moves along the first guide hole, the first guide hole is formed in the first sleeve, the first rotating shaft is provided with the limiting groove along the outer circumferential surface of the first rotating shaft, one end of the second pin shaft moving along the limiting groove is arranged in the limiting groove, the other end of the second pin shaft is arranged on one end of the third support rod through a bearing, and the other end of the third limiting rod is fixedly connected with the storage box.

The invention relates to a sewage treatment device, wherein a second rotating shaft is in driving connection with a fan blade through a rotating mechanism, and the rotating mechanism comprises a fifth gear, a gear ring, a worm, a second rack, a second guide rail and a fourth support rod;

the second pivot coaxial with the fifth gear coaxial fixation, the second pivot passes through the bearing and installs on the second bracing piece, the fifth gear with the ring gear meshing is connected, ring gear and curb plate fixed connection, the second pivot with the worm coaxial fixation, the worm with the second rack meshing is connected, the second rack is followed the second guide rail removes, the second guide rail with the one end fixed connection of fourth bracing piece, the other end of fourth bracing piece is passed through the bearing and is installed the tip of worm, the both ends of second rack with fan piece fixed connection.

The invention relates to a sewage treatment device, which further comprises a gap discharging mechanism, wherein the gap discharging mechanism comprises a cam, a fifth supporting rod, a u-shaped rod, a second spring, a sixth supporting rod, a first clamping hook, a second clamping hook, a ratchet wheel, a third rotating shaft, a disc, a circular hole and a discharge hole;

the motor output shaft with the cam is coaxial fixed, the terminal surface of cam with the overlap joint of surface of fifth bracing piece, the fifth bracing piece with u type pole fixed connection, u type pole with sixth bracing piece hinged joint, sixth bracing piece and storage box fixed connection, the both sides of u type pole are fixed with respectively first pothook with the second pothook, first pothook or the second pothook can with the ratchet overlap joint of ratchet, the ratchet is surplus the coaxial fixed of third pivot, the third pivot is passed through the bearing and is installed on the storage box, the third pivot with the disc is coaxial fixed, evenly set up a plurality ofly on the disc the round hole, the round hole can with the laminating of discharge gate, the discharge gate is seted up in the storage box bottom.

The invention relates to a sewage treatment device, which further comprises a cleaning mechanism, wherein the cleaning mechanism comprises a third gear, a third rack, a third guide rail, a first scraper, a top plate, a cover plate, a fourth guide rail, a third spring, a fourth rack, a fifth guide rail, a second scraper, a second through hole and a collecting box;

the first rotating shaft is coaxially fixed with the third gear, the third gear is meshed with the third rack, the third rack moves along the third guide rail, the third guide rail is fixedly connected with the filter screen, the third rack is fixedly connected with the first scraper, the first scraper is fixedly connected with the top plate, the top plate can be in lap joint with one side of the cover plate, the cover plate moves along the fourth guide rail, the fourth guide rail is fixedly connected with the filter screen, the filter screen is provided with the second through hole, the collecting box is arranged under the second through hole and is fixedly connected with a side plate, the other side of the cover plate is fixedly connected with one end of the third spring, the other end of the third spring is fixedly connected with the side plate, the third gear can also be meshed with the fourth rack, and the fourth rack moves along the fifth guide rail, the fifth guide rail is fixedly connected with the filter screen, and the fourth rack is fixedly connected with the second scraper;

and the structural body consisting of the two groups of top plates, the cover plate, the fourth guide rail, the third spring, the second through hole and the collecting box is arranged in a manner of being symmetrical about the center of the third gear.

The invention relates to a sewage treatment device, wherein a first rack is provided with a dovetail-shaped sliding block, and a dovetail groove is formed in a first guide rail.

The invention relates to a sewage treatment device, wherein the limiting groove is n-shaped.

The sewage treatment device is different from the prior art in that the motor drives the stirring mechanism to enable the fan blades to swing at 180 degrees left and right, so that sewage is continuously stirred, and the sewage is fully mixed with a sewage treatment agent, so that the sewage treatment efficiency is improved, and the sewage treatment effect is improved.

The sewage treatment apparatus of the present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 2 is a plan view of a sewage treatment apparatus shown in FIG. 1;

FIG. 3 is a partial isometric view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 6 is an enlarged partial view of FIG. 5;

FIG. 7 is a partial isometric view of FIG. 1;

FIG. 8 is an enlarged partial view of FIG. 7;

fig. 9 is a partially enlarged view of fig. 1.

Detailed Description

As shown in fig. 1 to 9, referring to fig. 1 to 3 and 7, a sewage treatment apparatus includes a tank 101 including a side plate 102 and a bottom plate 103, the side plate being provided with a water inlet 104, the bottom plate 103 being provided with a water outlet 105;

a filter screen 106 disposed on the upper portion of the bottom plate 103 to filter sludge;

a storage tank 107, which is fixed to the side plate 102 for storing a sewage treatment agent;

a fan 109 disposed in the case 101;

and a stirring mechanism 200 for driving the fan 109 to swing through a motor 201.

According to the invention, the motor 201 drives the stirring mechanism 200 to enable the fan blades 109 to swing at 180 degrees left and right, so that sewage is continuously stirred, and the sewage is fully mixed with a sewage treatment agent, thereby improving the sewage treatment efficiency and improving the sewage treatment effect.

Wherein, the filter screen 106 is provided with a plurality of uniform through holes, and the size of the through holes of the filter screen 106 can be adjusted by the technical personnel in the field according to the sewage type.

Wherein, the flabellum 109 is at least two, and the shape is similar to current fan, guarantees abundant stirring.

The power module of the motor 201 comprises a battery, an electric control module and a wireless communication module, and the wireless communication module is in wireless connection with the user terminal.

The present invention allows a user to directly control the rotation direction and rotation speed of the motor 201 through the wireless communication module, thereby adjusting the efficiency of agitation and adjusting the efficiency of sewage treatment.

As a further explanation of the present example, referring to fig. 1 and fig. 4 to 6, the stirring mechanism 200 includes a motor 201, a motor output shaft 202, a crank 203, a first rack 204, a first guide rail 205, a first support rod 206, a first gear 207, a first rotating shaft 208, a second support rod 209, a second rotating shaft 210;

the motor 201 is fixedly connected with the side plate 102, the motor output shaft 202 of the motor 201 is fixedly connected with one end of the crank 203, the other end of the crank 203 is connected with the hinge of the first rack 204, the first rack 204 moves along the first guide rail 205, the first guide rail 205 is fixedly connected with one end of the first support rod 206, the other end of the first support rod 206 is mounted on the first gear 207 through a bearing, the first gear 207 is meshed with the first rack 204, the first gear 207 is in driving connection with the first rotating shaft 208, the first rotating shaft 208 is fixedly connected with one end of the second support rod 209, the other end of the second support rod 209 is connected with the second rotating shaft 210, and the second rotating shaft 210 is connected with the fan blade 109.

According to the invention, the motor 201 drives the crank 203 to rotate so as to enable the first rack 204 to move left and right, so that the first gear 207 rotates forwards and backwards, the first rotating shaft 208 rotates forwards and backwards, the second supporting rod 207 drives the fan piece 109 to swing left and right, the stirring range is expanded, a sewage treating agent put into the box body 101 is rapidly mixed with sewage, and the decontamination efficiency and effect are improved.

Wherein the first gear 207 is coaxially and fixedly connected with the first rotating shaft 208.

The other end of the second support rod 209 is in bearing connection with the second rotating shaft 210.

The second rotating shaft 210 is fixedly connected with the fan 109.

As a further explanation of this example, referring to fig. 4 and fig. 7 to 9, the first gear 207 is connected to the first rotating shaft 208 through a lifting mechanism 300 by the lifting mechanism 300, and the lifting mechanism 300 includes a sleeve 301, a first pin 302, a first guide hole 303, a second pin 304, a limiting groove 305, a third support rod 306, and a first spring 307;

the first gear 207 is coaxially fixed with the first sleeve 301, the first sleeve 301 is sleeved with the first rotating shaft 208, one end of the first spring 307 is fixed on the first rotating shaft 208 through a bearing, the other end of the first spring 307 is fixed with the bottom of the first sleeve 301, one end of the first pin 302 is fixed to the first shaft 208 along the outer surface thereof, the other end of the first pin 302 is disposed in and moves along the first guide hole 303, the first guide hole 303 is formed in the first sleeve 301, the first shaft 208 is formed with the limiting groove 305 along an outer circumferential surface thereof, one end of the second pin 304 moving along the limiting groove 305 is disposed in the limiting groove 305, the other end of the second pin 304 is mounted on one end of the third supporting rod 306 through a bearing, and the other end of the third limiting rod 306 is fixedly connected with the storage box 107.

According to the invention, through the left-right rotation of the first rotating shaft 208, when the first rotating shaft 208 rotates to the 9 o 'clock direction or the 15 o' clock direction, the limiting groove 305 only allows up-down movement at the moment but not rotation, so that the first pin shaft 302 moves to the lowest point along the first guide hole 303, and the second pin shaft 304 moves down along the limiting groove to realize up-down movement, so that the fan piece 109 is driven to move up and down while moving left and right, and sewage treatment agents at different depths are stirred, so that the sewage treatment effect is better.

The shape of the first guide hole 303 is preferably v-shaped, and the first guide hole can move up and down while ensuring the left and right rotation of the first rotation shaft 208.

As a further explanation of the present example, referring to fig. 5 to 6, the second rotating shaft 210 is in driving connection with the fan blade 109 through the rotating mechanism 400, and the rotating mechanism 400 includes a fifth gear 403, a gear ring 402, a worm 404, a second rack 405, a second guide rail 406, and a fourth support rod 407;

the second rotating shaft 210 is coaxially fixed with the fifth gear 403, the second rotating shaft 210 is mounted on the second supporting rod 209 through a bearing, the fifth gear 403 is in meshed connection with the gear ring 402, the gear ring 402 is fixedly connected with the side plate 102, the second rotating shaft 210 is coaxially fixed with the worm 404, the worm 404 is in meshed connection with the second rack 405, the second rack 405 moves along the second guide rail 406, the second guide rail 406 is fixedly connected with one end of the fourth supporting rod 407, the other end of the fourth supporting rod 407 is mounted at the end of the worm 404 through a bearing, and two ends of the second rack 405 are fixedly connected with the fan blade 109.

According to the invention, the first rotating shaft 208 rotates and is meshed with the gear ring 402 through the fifth gear 403, so that the worm 404 drives the second rack 405 to move, the fan blade 109 stirs surrounding sewage at multiple angles, and eddy current is easy to appear, so that the sewage treatment agent has wider spreading performance, and countless treatment efficiency and effect are improved.

The second rack 405 is provided with a dovetail-shaped sliding block, the second guide rail 406 is provided with a dovetail groove, and the second rack 405 can move along the second guide rail 406 without being separated from the dovetail groove of the second guide rail 406 by the matching movement of the dovetail-shaped sliding block of the second rack 405 and the dovetail groove of the second guide rail 406.

Wherein, as shown in fig. 5, the second rack 405 is obliquely arranged from top to bottom and from front to back, so as to ensure that the stirring range is larger and the angle change is rich.

Wherein, two sets of the fan blades 109 are symmetrically arranged.

As a further explanation of this example, referring to fig. 4, the sewage treatment apparatus further comprises a gap emptying mechanism 500, wherein the gap emptying mechanism 500 comprises a cam 501, a fifth support rod 502, a u-shaped rod 503, a second spring 510, a sixth support rod 511, a first hook 504, a second hook 505, a ratchet 506, a third rotating shaft 507, a circular disc 508, a circular hole 509 and a discharge hole 512;

the motor output shaft 202 is coaxially fixed with the cam 501, the end surface of the cam 501 is overlapped with the surface of the fifth supporting rod 502, the fifth supporting rod 502 is fixedly connected with the u-shaped rod 503, the u-shaped rod 503 is hinged with the sixth supporting rod 511, the sixth supporting rod 511 is fixedly connected with the storage box 107, the first hook 504 and the second hook 505 are respectively fixed on two sides of the u-shaped rod 503, the first hook 504 or the second hook 505 can be engaged with the ratchet teeth of the ratchet 506, the ratchet wheel 506 is coaxially fixed with the third rotating shaft 507, the third rotating shaft 507 is installed on the storage box 109 through a bearing, the third rotating shaft 507 is coaxially fixed with the disc 508, a plurality of round holes 509 are uniformly formed on the disc 508, the round hole 509 can be attached to the discharge hole 512, and the discharge hole 512 is arranged at the bottom of the storage box 107.

According to the invention, the cam 501 is driven to rotate by the motor 201, so that the fifth supporting rod 502 swings, when the fifth supporting rod 502 swings downwards, the clamping connection between the first clamping hook 504 and the ratchet 506 fails, and the second clamping hook 505 pushes the ratchet 506 to rotate by the arc length of one ratchet, so that the disc 508 rotates, the circular hole 509 is aligned to the discharge hole 512 or the rest part on the disc 508 blocks the discharge hole 512, so that intermittent discharge is realized, a sewage treatment agent can be saved, the cost is saved, and uniform material scattering ensures that sewage and the sewage treatment agent are fully mixed, and the solubility is controlled; after the rotation is finished and the cam 501 does not push against the fifth supporting rod 502 to move, the fifth supporting rod 502 is reset under the action of the second spring 510, the first hook 504 is clamped with the ratchet 506, and at the moment, the second hook 505 is not in contact lap joint with the ratchet 506.

The big end of the cam 501 can be overlapped with the fifth support rod 502, and the small end of the cam 501 can eject the fifth support rod 502.

Wherein, the spacing area between the round holes 509 is larger than the area of the discharge hole 512.

Wherein, the upper surface of the disc 508 is connected with the discharge hole 512 in a sealing way.

As further explanation of the present example, referring to FIGS. 1-2, the sewage treatment device further comprises a cleaning mechanism 600, wherein the cleaning mechanism 600 comprises a third gear 601, a third rack 602, a third guide rail 603, a first scraper 604, a top plate 605, a cover plate 606, a fourth guide rail 607, a third spring 608, a fourth rack 609, a fifth guide rail 610, a second scraper 611, a second through hole 620 and a collecting box 621;

the first rotating shaft 208 is coaxially fixed with the third gear 601, the third gear 601 is engaged with the third rack 602, the third rack 602 moves along the third guide rail 603, the third guide rail 603 is fixedly connected with the filter screen 106, the third rack 602 is fixedly connected with the first scraper 604, the first scraper 604 is fixedly connected with the top plate 605, the top plate 605 can be overlapped with one side of the cover plate 606, the cover plate 606 moves along the fourth guide rail 607, the fourth guide rail 607 is fixedly connected with the filter screen 106, the filter screen 106 is provided with the second through hole 620, the collecting box 621 is arranged right below the second through hole 620, the collecting box 621 is fixedly connected with the side plate 102, the other side of the cover plate 606 is fixedly connected with one end of the third spring 608, and the other end of the third spring 608 is fixedly connected with the side plate 102, the third gear 601 is also capable of being meshed with the fourth rack 609, the fourth rack 609 moves along the fifth guide rail 610, the fifth guide rail 510 is fixedly connected with the filter screen 106, and the fourth rack 609 is fixedly connected with the second scraper 611;

and the structural body consisting of the two groups of the top plate 605, the cover plate 606, the fourth guide rail 607, the third spring 608, the second through hole 620 and the collecting box 621 is symmetrically arranged around the center of the third gear 602.

According to the invention, the first rotating shaft 508 drives the third gear 601 to rotate forward and backward to enable the third rack 602 to move left and right, when the third rack 602 moves rightwards, sludge and residues falling on the filter screen are pushed to the cover plate 606, when the top plate 605 pushes the cover plate 606 to move, the sludge and the residues are pushed into the collection box 621, when the third rack moves leftwards, the cover plate is reset under the action of the third spring 608, and the movement process of the fourth rack 609 is opposite to that of the third rack 602, so that the sludge and the residues on the filter screen 106 are removed, the smoothness of the filter screen 106 is ensured, and the problems of poor sewage treatment effect and low efficiency caused by the blockage of the filter screen 106 are solved.

The thickness of the third gear 601 is greater than the length of the first guide hole 303, so that the third gear 601 is meshed with the third rack 602 and the fourth rack 609 at any time.

The third rack 602 is provided with a dovetail-shaped slider, the third guide rail 603 is provided with a dovetail groove, and the dovetail-shaped slider of the third rack 602 is matched with the dovetail groove of the third guide rail 603 to ensure that the third rack 602 can move left and right without moving longitudinally.

Wherein the third rack 602 is disposed perpendicular to the first scraper 604.

The cover plate 606 is provided with a dovetail-shaped sliding block, the fourth guide rail 607 is provided with a dovetail groove, and the dovetail-shaped sliding block of the cover plate 606 is matched with the dovetail groove of the fourth guide rail 607 to ensure that the cover plate 606 can move left and right and does not move longitudinally.

The fourth rack 609 is provided with a dovetail-shaped sliding block, the fifth guide rail 510 is provided with a dovetail groove, and the fourth rack 609 can move left and right and does not move longitudinally through the matching of the dovetail-shaped sliding block of the fourth rack 609 and the dovetail groove of the fifth guide rail 510.

Wherein the fourth rack 609 is disposed perpendicular to the second squeegee 611.

Wherein, the filter screen 106 is fixedly connected with the side plate 102.

Wherein the collecting box 621 is connected with the second through hole 620 in a sealing manner.

As a further explanation of this example, with reference to fig. 1 and 8, the first rack 204 is provided with a dovetail slider, and the first guide rail 205 is provided with a dovetail groove.

The present invention ensures that the first rack 204 moves along the first rail 205 without disengaging the dovetail groove.

As a further explanation of this example, referring to fig. 8, the shape of the spacing groove 305 is n-type.

The present invention ensures the first shaft 208 to move up and down while rotating left and right.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.