CN211873301U - Sewer blowdown device - Google Patents

Abstract

The utility model discloses a sewer sewage discharging device, which comprises a movable working box, wherein a cover opening mechanism is arranged on the movable working box, a mud drainage component and a sewage outlet are arranged on the side wall of the movable working box, and a water tank, a mud sieving component, a water pump and a mud scouring component are arranged in the movable working box; the mud sieving component comprises a screen mechanism arranged above the water tank, the screen mechanism is used for receiving mud conveyed by the mud drainage component, a screen cleaning pipe group is arranged at the mud inlet end of the screen mechanism, a scraper component is arranged at the mud outlet end of the screen mechanism, and the scraper component is arranged on one side of the sewage outlet; the screen cleaning pipe group is connected with the water outlet end of the water pump through a first water drainage pipe; the play water end of water pump is through second drain pipe connection mud scouring component, and the end of intaking of water pump is through first advance water piping connection water tank, and the end of intaking of water pump advances water piping connection water supply end through the second, the utility model discloses the device blowdown is efficient to labour saving and time saving.

Description

Sewer blowdown device

Technical Field

The utility model relates to a sewer cleaning device technical field, concretely relates to sewer waste fitting discharging.

Background

The playground of school, garden edge, the highway edge all has rectangular form sewer, but piles up in the sewer throughout the year and follows the great amount of silt that the rainwater fell down from the road surface, if these silt do not handle in time, will block up the sewer, influence the normal drainage system in city.

However, the existing way of treating the sludge in the sewer has the following defects:

the existing solution is that one person needs to remove a cement or iron sewer cover, then shovel stones, garbage and silt out of the sewer little by using an iron shovel, and then carry out unified treatment, so that a large amount of time, manpower and material resources are consumed in the treatment work; due to the sedimentation of silt in the sewer, some slurry mixed with the sandy soil exists in the sewer in a consolidation mode, and the water resource is wasted by adopting a water flushing mode, and the controllability is low and the cleaning efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a sewer waste fitting discharging to solve the above-mentioned defect among the prior art.

A sewer sewage discharge device comprises a movable working box, wherein a cover opening mechanism is arranged on the movable working box, a mud drainage component and a sewage discharge outlet are arranged on the side wall of the movable working box, and a water tank, a mud sieving component, a water pump and a mud scouring component are arranged inside the movable working box;

the mud sieving component comprises a screen mechanism arranged above the water tank, the screen mechanism is used for receiving mud conveyed by the mud drainage component, a screen cleaning pipe group is arranged at a mud inlet end of the screen mechanism, a scraper component is arranged at a mud outlet end of the screen mechanism, and the scraper component is arranged on one side of the sewage outlet; the screen cleaning pipe group is connected with the water outlet end of the water pump through a first water discharge pipe; the water outlet end of the water pump is connected with the slurry scouring assembly through a second water discharging pipe, the water inlet end of the water pump is connected with the water tank through a first water inlet pipe, and the water inlet end of the water pump is connected with the water supply end through a second water inlet pipe.

Preferably, the uncovering mechanism comprises a horizontal fine adjustment device arranged on the movable work box, a rotary cylinder rotating laterally is arranged on the horizontal fine adjustment device, a movable cylinder moving perpendicular to the moving direction of the horizontal fine adjustment device is arranged on the rotary cylinder, a lifting cylinder is arranged on the movable cylinder, and the tail end of the lifting cylinder is connected with a clamping jaw cylinder; the horizontal fine-tuning device comprises a horizontal limiting guide rail fixedly mounted on a movable working box, a horizontal moving plate is slidably mounted on the horizontal limiting guide rail, a rotary cylinder is mounted on the horizontal moving plate, a screw nut sleeve is mounted on the horizontal moving plate, a screw nut is sleeved in the screw nut sleeve and parallel to the moving direction of the horizontal moving plate, a screw matched with the screw nut is arranged, and a first motor is connected to a rotating shaft of the screw through a coupling.

Preferably, the slurry drainage assembly comprises a lifting drainage groove and a slurry guide groove connected to the drainage end of the lifting drainage groove, the slurry guide groove extends to the upper side of the screen mechanism, a crawler belt driven to run by a belt wheel mechanism is arranged in the lifting drainage groove, baffle plates perpendicular to the surface of the crawler belt are arranged on the crawler belt at equal intervals, one end of the lifting drainage groove is hinged to the movable work box, and the other end of the lifting drainage groove is connected with a lifting assembly.

Preferably, the pulling assembly comprises an electric push rod for limiting one end of the crawler belt and a pulling rope for pulling one end of the crawler belt, the other end of the pulling rope is connected with the pulling rope preferably through a second motor, the screen mechanism comprises a screen support arranged above the water tank, a plurality of layers of filtering screens are arranged above and below the screen support, the screen holes of the filtering screens on the upper layer are larger than those of the filtering screens on the lower layer, each filtering screen comprises a slope section at the starting end and a curved section at the tail end, the slope section and the curved section are connected through a plane section, the screen cleaning pipe group is arranged on the slope section, and the scraper assembly is arranged on the curved section.

Preferably, the scraper blade subassembly is including setting up the scraper blade axle in each layer screen cloth support curved surface section top respectively, install a plurality of scrapers through spring annular array on the scraper blade axle, the scraper blade is used in the curved surface of curved surface section at the pivoted in-process, and is a plurality of the end of scraper blade axle is provided with the gear, adjacent two intermeshing between the gear, one of them one side of gear is provided with rather than intermeshing's drive gear, drive gear passes through the third motor drive rotation.

Preferably, the slurry scouring assembly comprises an inner tubular shaft rotatably mounted at the end part of the second drainage pipe, an outer tubular shaft is fixedly sleeved on the inner tubular shaft, the inner tubular shaft and the outer tubular shaft are communicated with each other, a drainage hose is wound on the outer tubular shaft, two ends of the inner tubular shaft are rotatably mounted on tubular shaft supports, and the tubular shaft supports are fixedly mounted on the movable work box.

Preferably, one end of the outer pipe shaft is provided with a driving gear which is driven to rotate by a fourth motor, and a gear ring which is meshed with the driving gear is arranged on the periphery of the end wall of the outer pipe shaft.

The utility model has the advantages of as follows:

(1) the cover plate of the sewer can be easily removed by using the cover opening mechanism which is provided with the movable working box and can adjust the distance in multiple directions, and the cover plate is removed relatively manually, so that time and labor are saved;

(2) the utility model discloses utilize mud to erode the subassembly and break away the back with the silt in the sewer, carry out the layering through mud drainage subassembly drainage and transport it to mud in the subassembly that sieves and filter, and the rivers that cooperate the screen cloth to wash the nest of tubes erode the surface of filter screen, avoid the jam of screen cloth, ultimate impurity is scraped out through the scraper blade subassembly, whole device operation is smooth, the controllability is strong, the efficiency of sewer blowdown has been improved, and can also circulate through filterable sewage and be used for mud to erode the washing away of subassembly to the sewer, the utilization ratio of resource is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the lifting drainage groove of the present invention when retracted;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic back structure diagram of the present invention;

fig. 5 is a schematic view of a partial structure of the present invention;

FIG. 6 is a schematic structural view of a mud screening assembly of the present invention;

FIG. 7 is a schematic view of a partial structure of the squeegee assembly of the present invention;

FIG. 8 is a schematic structural view of a scraper assembly of the present invention;

fig. 9 is an enlarged schematic structural view of a in fig. 8 according to the present invention;

fig. 10 is a schematic structural view of the working state of the horizontal fine adjustment device of the present invention;

fig. 11 is a schematic structural view of the horizontal fine adjustment device of the present invention in an inoperative state;

fig. 12 is a schematic view of the internal partial structure of the present invention;

fig. 13 is a schematic structural view of the horizontal fine adjustment device of the present invention;

FIG. 14 is a detailed structure diagram of the slurry scouring assembly of the present invention;

FIG. 15 is a schematic view of the filter screen of the slurry scouring assembly of the present invention;

fig. 16 is a schematic structural view of the gate of the present invention.

In the figure:

1-moving the work box; 2-a cover opening mechanism; 3-a mud drainage assembly; 4-a water tank; 5-a mud screening assembly; 6, a water pump; 7-a slurry scouring assembly; 8-a first drain pipe; 9-a second drain pipe; 10-a first water inlet pipe; 11-a second water inlet pipe; 12-a sewage draining outlet; 13-a gate;

201-horizontal fine adjustment device; 202-a rotary cylinder; 203-moving cylinder; 204-a lifting cylinder; 205-gripper cylinder; 206-horizontal limit rail; 207-horizontally moving the plate; 208-a lead screw nut sleeve; 209-screw nut; 210-a lead screw; 211-a coupling; 212-a first motor;

301-lifting drainage grooves; 302-slurry guide groove; 303-a pulley mechanism; 304-a track conveyor; 305-a breast board; 306-an electric push rod; 307-pulling a rope; 308-a second motor; 309-reel; 310-a guide;

501-a screen mechanism; 502-screen wash tube set; 503-a squeegee assembly; 504-screen holder; 505-a filter screen; 506-slope section; 507-curved surface section; 508-a planar segment; 509-flight shaft; 510-a spring; 511-a scraper; 512-gear; 513-a transmission gear; 514-a third motor;

701-inner pipe shaft; 702-an outer tubular shaft; 703-a drain hose; 704-spool support; 705-a fourth motor; 706-a drive gear; 707-toothed ring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 16, the utility model provides a sewage draining device, which can easily open the cover plate of the sewer and perform efficient sewage draining operation on the sewer. Specifically, the method comprises the following steps:

the sewage discharging device comprises a movable working box 1, wherein a cover opening mechanism 2 is arranged on the movable working box 1, a mud drainage component 3 and a sewage outlet 12 are arranged on the side wall of the movable working box 1, and a water tank 4, a mud sieving component 5, a water pump 6 and a mud flushing component 7 are arranged in the movable working box 1.

The mud sieving assembly 5 comprises a screen mechanism 501 arranged above the water tank 4, the screen mechanism 501 is used for receiving mud transmitted by the mud drainage assembly 3, a screen cleaning pipe group 502 is arranged at a mud inlet end of the screen mechanism 501, a scraper assembly 503 is arranged at a mud outlet end of the screen mechanism 501, and the scraper assembly 503 is arranged at one side of the sewage outlet 12; and the screen washing pipe group 502 is connected with the water outlet end of the water pump 6 through a first water outlet pipe 8; the water outlet end of the water pump 6 is connected with the slurry scouring assembly 7 through a second water discharge pipe 9, the water inlet end of the water pump 6 is connected with the water tank 4 through a first water inlet pipe 10, and the water inlet end of the water pump 6 is connected with the water supply end through a second water inlet pipe 11.

Wherein, the bottom of the movable work box 1 is provided with universal wheels which can move.

Wherein, the cover opening mechanism 2 is used for opening a cover plate of a sewer. Specifically, the method comprises the following steps:

the uncovering mechanism 2 comprises a horizontal fine-adjustment device 201 installed on the movable work box 1, a rotary cylinder 202 which rotates laterally is arranged on the horizontal fine-adjustment device 201, a movable cylinder 203 which moves perpendicular to the moving direction of the horizontal fine-adjustment device 201 is arranged on the rotary cylinder 202, a lifting cylinder 204 is arranged on the movable cylinder 203, and the tail end of the lifting cylinder 204 is connected with a clamping jaw cylinder 205; horizontal micromatic setting 201 includes horizontal limiting guide rail 206 of fixed mounting on moving work box 1, slidable mounting has horizontal moving plate 207 on horizontal limiting guide rail 206, revolving cylinder 202 installs on horizontal moving plate 207, install lead screw nut cover 208 on the horizontal moving plate 207, lead screw nut cover 208's inside cover is equipped with lead screw nut 209, is on a parallel with horizontal moving plate 207 moving direction be provided with lead screw 210 that lead screw nut 209 mutually supported, first motor 212 is being connected through shaft coupling 211 in lead screw 210's pivot.

When the cover opening mechanism 2 works, the moving cylinder 203 is started firstly, the clamping jaw cylinder 205 at the front end of the moving cylinder 203 reaches the horizontal direction of the sewer cover plate, the rotating cylinder 202 is started to enable the lifting cylinder 204 to rotate to the vertical direction, then the horizontal fine adjustment device 201 is adjusted, the lifting cylinder 204 is horizontally moved to the position right above the clamping jaw cylinder 205, the lifting cylinder 204 is used for driving the clamping jaw cylinder 205 to descend to clamp the cover plate, and the cover plate is moved to one side of the sewer.

What needs to be introduced here is the way in which the fine horizontal adjustment device 201 is adjusted: the first motor 212 drives the screw 210 to rotate, and the horizontal moving plate 207 where the screw nut 209 matched with the screw 210 is located moves horizontally under the horizontal limiting action of the horizontal limiting guide rail 206.

Wherein the mud drainage assembly 3 is used for draining mud in a sewer. Specifically, the method comprises the following steps:

the mud drainage assembly 3 comprises a lifting drainage groove 301 and a mud guiding groove 302 connected to the drainage end of the lifting drainage groove 301, the mud guiding groove 302 extends to the upper part of the screen mechanism 501, a crawler belt 304 driven to run by a belt wheel mechanism 303 is arranged in the lifting drainage groove 301, a baffle 305 perpendicular to the surface of the crawler belt 304 is equidistantly arranged on the crawler belt 304, one end of the lifting drainage groove 301 is hinged to the movable work box 1, and the other end of the lifting drainage groove 301 is connected with a lifting assembly; the pulling assembly comprises an electric push rod 306 for limiting one end of the track conveyer belt 304 and a pulling rope 307 for pulling one end of the track conveyer belt 304, the other end of the pulling rope 307 is connected with a reel 309 driven to rotate by a second motor 308, and the movable work box 1 is further provided with a guide piece 310 for guiding the pulling rope 307. The guide 310 can adjust the rotational angle direction of the pull rope 307.

The lifting mode of the lifting drainage groove 301 is as follows: when the push rod of the electric push rod 306 is in a retracted state, the second motor 308 is started, the rotating second motor 308 enables the pull rope 307 wound on the winding wheel 309 to put down one end of the lifting drainage groove 301, and then the lower end of the lifting drainage groove 301 is fixed by pushing out the push rod of the electric push rod 306, so that the lifting drainage groove 301 is prevented from shaking in the working process. More preferably, an electric push rod 306 (not shown) may be further provided on the movable work box 1 for fixing the lifted lifting drainage groove 301.

The screen cloth mechanism 501 comprises a screen cloth support 504 arranged above the water tank 4, a plurality of layers of filtering screen cloth 505 are arranged above and below the screen cloth support 504, the filtering screen cloth 505 positioned on the upper layer is larger than the filtering screen cloth 505 positioned on the lower layer, the filtering screen cloth 505 comprises a slope section 506 positioned at the starting end and a curved section 507 positioned at the tail end, the slope section 506 and the curved section 507 are connected through a plane section 508, a screen cloth cleaning pipe group 502 is arranged on the slope section 506, and a scraper component 503 is arranged on the curved section 507.

The slope sections 506, the plane sections 508 and the curved sections 507 of the filtering screens 505 are arranged in a mode that is beneficial to flushing of sludge by water flow sprayed from the screen cleaning pipe group 502.

The screen bracket 504 of the embodiment of the utility model has three layers, the upper layer with the largest screen hole is used for filtering out bottles, plastic bags and large stones; the middle layer is used for filtering small stones, and the lower layer with the smallest sieve pore is used for filtering silt, so that the silt is filtered more thoroughly.

Wherein the scraper assembly 503 is used to scrape off impurities falling down to the curved section 507 of the filter screen 505. Specifically, the method comprises the following steps:

the scraper component 503 comprises scraper shafts 509 respectively arranged above the curved surface sections 507 of the screen supports 504 of each layer, a plurality of scrapers 511 are arranged on the scraper shafts 509 through annular arrays of springs 510, the scrapers 511 act on the curved surfaces of the curved surface sections 507 in the rotating process, a plurality of gears 512 are arranged at the tail ends of the scraper shafts 509, two adjacent gears 512 are meshed with each other, one of the gears 512 is provided with a transmission gear 513 meshed with the gear 512, and the transmission gear 513 is driven to rotate through a third motor 514.

When the third motor 514 is started, the third motor 514 drives the transmission gear 513 to drive the scraper shafts 509 where the gears 512 meshed with the transmission gear are located to synchronously rotate, and the scrapers 511 connected to the scraper shafts 509 scrape the sludge in the curved surface section 507 of the screen support 504 out to the sewage discharge outlet 12.

Wherein the mud washing assembly 7 is used for washing mud in a sewer. Specifically, the method comprises the following steps:

the mud scouring assembly 7 comprises an inner pipe shaft 701 rotatably mounted at the end part of the second drain pipe 9, an outer pipe shaft 702 is fixedly sleeved on the inner pipe shaft 701, the inner pipe shaft 701 and the outer pipe shaft 702 are communicated with each other, a drain hose 703 is wound on the outer pipe shaft 702, pipe shaft brackets 704 are rotatably mounted at two ends of the inner pipe shaft 701, and the pipe shaft brackets 704 are fixedly mounted on the movable work box.

A driving gear 706 driven by a fourth motor 705 to rotate is mounted at one end of the outer tube shaft 702, and a gear ring 707 meshed with the driving gear 706 is arranged on one circle of the end wall of the outer tube shaft 702.

The water in the water pump 6 enters the inner pipe shaft 701 through the second water discharge pipe 9 and flows out of the water discharge hose 703 through the outer pipe shaft 702. When the fourth motor 705 is started, the rotating driving gear 706 rotates the outer pipe shaft 702 where the toothed ring 707 is located, and the drain hose 703 wound on the outer pipe shaft 702 can be pulled out; the drain hose 703 can be wound up quickly when the fourth motor 705 rotates reversely.

The drain hose 703 is finally pulled out from the gate 13 mounted on the mobile work box 1.

The utility model discloses the theory of operation of device as follows:

the movable working box 1 runs to two ends of a sewer in sequence, the cover plates of the sewer at the two ends are opened by the cover opening mechanism 2, and the lifting assembly is started from one end of a sewer opening, so that one end of the lifting drainage groove 301 is put down to the bottom surface of the sewer; the water discharge hose 703 of the slurry scouring component 7 is dragged to the other end of the sewer opening, water is oppositely sprayed to one side of the lifting drainage groove 301, water in the water tank 4 and the water supply end is pressurized by the water pump 6 to form high-pressure water, sludge impurities in the sewer are scoured into slurry, the slurry is prevented from being solidified in blocks, and the slurry is favorably conveyed in the later period;

then, the crawler belt 304 in the lifting drainage groove 301 works, the baffle plate 305 is used for intercepting the slurry and conveying the slurry to the slurry guide groove 302, the slurry in the slurry guide groove 302 falls to the surface of the filter screen 505 of the slurry sieving assembly 5 for layered filtration, so that stone and impurities in the slurry are separated from water, the stone and the impurities fall to the plane section 508 through the slope section 506 of the filter screen 505, and the screen cleaning pipe group 502 sprays water onto the filter screen 505, so that the blockage of the filter screen 505 is avoided; then, the scraper assembly 503 is started, and the scraper shaft 509 of the scraper assembly 503 rotates to drive the scraper 511 to scrape out the sludge sundries on the inner side of the curved section 507 to the sewage outlet 12 for discharge.

The water source of the utility model can come from two places, one place flows into the water pump 6 through the second water inlet pipe 11 from the water supply end, the water supply end can be a city water net or other external water source, and the other place flows into the water pump 6 through the first water inlet pipe 10 from the water falling into the water tank 4; the water at the two positions can be respectively used for washing the filtering screen 505 by the screen washing pipe group 502 through the first water discharge pipe 8 and can also be used for washing away silt in the sewer by the mud washing component 7 through the second water discharge pipe 9.

All in all, the utility model discloses the device blowdown is efficient to labour saving and time saving has liberated the labour greatly.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (8)

1. A sewage draining device is characterized in that: the mud cleaning device comprises a movable working box (1), wherein a cover opening mechanism (2) is arranged on the movable working box (1), a mud drainage component (3) and a sewage outlet (12) are arranged on the side wall of the movable working box (1), and a water tank (4), a mud sieving component (5), a water pump (6) and a mud scouring component (7) are arranged in the movable working box (1);

the mud sieving assembly (5) comprises a screen mechanism (501) arranged above the water tank (4), the screen mechanism (501) is used for receiving mud conveyed by the mud drainage assembly (3), a screen cleaning pipe group (502) is arranged at a mud inlet end of the screen mechanism (501), a scraper assembly (503) is arranged at a mud outlet end of the screen mechanism (501), and the scraper assembly (503) is arranged on one side of the sewage outlet (12); and the screen cleaning pipe group (502) is connected with the water outlet end of the water pump (6) through a first water outlet pipe (8); the water outlet end of the water pump (6) is connected with the slurry scouring assembly (7) through a second water discharge pipe (9), the water inlet end of the water pump (6) is connected with the water tank (4) through a first water inlet pipe (10), and the water inlet end of the water pump (6) is connected with the water supply end through a second water inlet pipe (11).

2. A sewer drain according to claim 1, characterized in that: the uncovering mechanism (2) comprises a horizontal fine-adjustment device (201) arranged on the movable work box (1), a rotary cylinder (202) which rotates in the lateral direction is arranged on the horizontal fine-adjustment device (201), a movable cylinder (203) which moves in the direction perpendicular to the moving direction of the horizontal fine-adjustment device (201) is arranged on the rotary cylinder (202), a lifting cylinder (204) is arranged on the movable cylinder (203), and the tail end of the lifting cylinder (204) is connected with a clamping jaw cylinder (205); horizontal micromatic setting (201) is including horizontal limiting guide rail (206) of fixed mounting on removing work box (1), slidable mounting has horizontal migration board (207) on horizontal limiting guide rail (206), revolving cylinder (202) are installed on horizontal migration board (207), install screw nut cover (208) on horizontal migration board (207), the inside cover of screw nut cover (208) is equipped with screw nut (209), is on a parallel with horizontal migration board (207) moving direction be provided with screw nut (209) screw (210) of mutually supporting, first motor (212) are being connected through shaft coupling (211) in the pivot of screw (210).

3. A sewer drain according to claim 1, characterized in that: mud drainage subassembly (3) are including lift drainage groove (301) and connection the terminal thick liquid groove (302) of leading of lift drainage groove (301) drainage, it extends to lead thick liquid groove (302) the top of screen cloth mechanism (501), the inside of lift drainage groove (301) is provided with crawler belt (304) through band pulley mechanism (303) drive operation, crawler belt (304) equidistance are provided with breast board (305) on perpendicular to crawler belt (304) surface, and the one end of lift drainage groove (301) articulates on removing work box (1), and the other end is connected with and carries and draws the subassembly.

4. A sewer drain according to claim 3, characterized in that: the lifting assembly comprises an electric push rod (306) used for limiting one end of the track conveying belt (304) and a pulling rope (307) used for lifting one end of the track conveying belt (304), the other end of the pulling rope (307) is connected with a winding wheel (309) driven to rotate by a second motor (308), a guide piece (310) used for guiding the pulling rope (307) is further arranged on the movable work box (1), and the guide piece (310) can adjust the rotating angle direction of the pulling rope (307).

5. A sewer drain according to claim 1, characterized in that: the screen cloth mechanism (501) is including installing screen cloth support (504) above water tank (4), a plurality of layers of filter screen cloth (505) are installed to the below of screen cloth support (504), are located the upper strata the sieve mesh of filter screen cloth (505) is greater than the sieve mesh of the filter screen cloth (505) that is located the lower floor, filter screen cloth (505) including slope section (506) that is located the initiating terminal and curved surface section (507) that is located the end, connect through plane section (508) between slope section (506) and curved surface section (507), screen cloth washing nest of tubes (502) is installed slope section (506), install scraper blade subassembly (503) curved surface section (507).

6. A sewer drain according to claim 5, characterized in that: scraper blade subassembly (503) is including setting up scraper shaft (509) in each layer screen cloth support (504) curved surface section (507) top respectively, install a plurality of scrapers (511) through spring (510) annular array on scraper shaft (509), scraper blade (511) are used in the curved surface of curved surface section (507) at the pivoted in-process, and are a plurality of the end of scraper shaft (509) is provided with gear (512), adjacent two intermeshing between gear (512), one of them one side of gear (512) is provided with rather than intermeshing's drive gear (513), drive gear (513) are rotatory through third motor (514) drive.

7. A sewer drain according to claim 1, characterized in that: the slurry scouring assembly (7) comprises an inner tubular shaft (701) rotatably mounted at the end part of the second drain pipe (9), an outer tubular shaft (702) is fixedly sleeved on the inner tubular shaft (701), the inner tubular shaft (701) is communicated with the outer tubular shaft (702), a drain hose (703) is wound on the outer tubular shaft (702), two ends of the inner tubular shaft (701) are rotatably mounted on tubular shaft supports (704), and the tubular shaft supports (704) are fixedly mounted on the movable work box (1).

8. A sewer drain according to claim 7, characterized in that: one end of the outer pipe shaft (702) is provided with a driving gear (706) which is driven to rotate by a fourth motor (705), and a gear ring (707) which is meshed with the driving gear (706) is arranged on one circle of the end wall of the outer pipe shaft (702).

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