CN118087676A

CN118087676A - Automatic dredging device and method for blocking point of municipal drainage operation

Info

Publication number: CN118087676A
Application number: CN202410387460.8A
Authority: CN
Inventors: 刘珺玲; 谭武山; 谭军山
Original assignee: Jingying Construction Group Co ltd
Current assignee: Jingying Construction Group Co ltd
Priority date: 2024-04-01
Filing date: 2024-04-01
Publication date: 2024-05-28

Abstract

The invention relates to the technical field of municipal works and discloses an automatic dredging device for a blocking point of municipal drainage operation, which comprises a mounting frame body, wherein a cleaning mechanism for scraping off blocking objects and pushing away the blocking objects is arranged in the mounting frame body, a collecting mechanism for containing the blocking objects is arranged outside the cleaning mechanism, the cleaning mechanism comprises a flow collecting frame, the flow collecting frame is fixedly connected to the bottom of the mounting frame body, a bottom frame is fixedly connected to the bottom of the flow collecting frame, an impeller is rotatably connected to the inside of the bottom frame, two sides of the flow collecting frame, which are close to the end part of the impeller, are fixedly connected with shells, the impact force of water flow can be utilized through the device, sediment on a filter plate is cleaned through the reciprocating motion of a water flow driving cleaning plate, external energy supply is not needed in the process, the effect of saving energy is achieved, the automatic dredging of the filter plate is realized, the filter plate is effectively prevented from being blocked by using a filter hole for a long time, and the smoothness of drainage is ensured.

Description

Automatic dredging device and method for blocking point of municipal drainage operation

Technical Field

The invention relates to the technical field of municipal engineering, in particular to an automatic dredging device for a blocking point of municipal drainage operation and a dredging method thereof.

Background

Municipal drainage refers to a drainage system of a city, which comprises the processes of collecting, conveying, treating, discharging and the like of rainwater and sewage, and generally comprises a rainwater drainage system and a sewage drainage system, wherein the rainwater drainage system mainly collects and discharges rainwater generated by urban rainfall so as to avoid urban waterlogging, and the sewage drainage system mainly collects and treats resident domestic sewage, industrial wastewater and the like, and is discharged to a natural water body or reused after being treated.

During rainy weather, rainwater can form rivers after the ground accumulates, rivers trickle can wash out the debris on ground, make debris quilt wash outlet department lead to the outlet to block up, cause urban waterlogging, consequently, need dredge the outlet, current pull throughs adopt tools such as high-pressure squirt or rotary cutter to break the plug of outlet department, realize the outlet mediation, but this kind of mediation mode needs manual work, because the outlet quantity in the municipal administration is wide in many scope, current mediation mode work efficiency is low and the cost of labor is high, be difficult to cover on a large scale, and current pull throughs are difficult to collect broken plug, the plug is tentatively dredged through the breakage messenger outlet, but the plug is easy to gather again in the drain pipe after the follow-up quilt is washed into the drain pipe, lead to the drain pipe to block up.

Therefore, an automatic dredging device for the blocking point of municipal drainage operation and a dredging method thereof are provided.

Disclosure of Invention

The invention aims to provide an automatic dredging device and a dredging method for a blocking point of municipal drainage operation, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the automatic dredging device for the blocking point of municipal drainage operation comprises an installation frame body, wherein a cleaning mechanism for scraping off blocking objects and pushing away the blocking objects is arranged in the installation frame body, and a collecting mechanism for collecting the blocking objects is arranged outside the cleaning mechanism;

The cleaning mechanism comprises a flow gathering frame, the flow gathering frame is fixedly connected to the bottom of an installation frame body, the bottom fixedly connected with underframe of the flow gathering frame, the inside of underframe is rotationally connected with impellers, two sides of the flow gathering frame, which are close to the ends of the impellers, are fixedly connected with shells respectively, two fixing plates are fixedly connected to the inner walls of one sides of the two shells respectively, two fixing plates are respectively connected with a first transmission part in a rotating mode on one side, which is far away from the fixing plates, of the fixing plates, a transmission belt is connected between one end, which is far away from the first transmission part, of the end, which is far away from the fixing plates, of the fixing plates, a filter plate is fixedly connected with two second transmission parts, two ends, which are far away from the second transmission parts, of the second transmission parts are respectively connected with a third transmission part in a meshing mode, two outer transmission parts of the third transmission parts are respectively connected with transmission belts, one side, which is far away from the first transmission parts, of the fixing plates are fixedly connected with two fixing plates, two fixing plates are connected with one side, which is far away from the fixing plates, of the fixing plates are connected with a top plate fixedly connected with one side, and two top plate fixing plates are fixedly connected with top plates, and the top plates are connected with top plates.

Preferably, the collection mechanism is including collecting the box, it is provided with two to collect the box, two collect the box and insert the one end of keeping away from between locating two fixed plates respectively, collect one side fixedly connected with guide plate that the box top is close to the filter, the equal fixedly connected with curb plate in both ends of guide plate, collect one side inner wall that the box is close to the filter and rotate and be connected with the baffle, it is connected with the spring support pole to rotate between one side inner wall that baffle bottom and collection box keep away from the filter, collect the inner wall bottom fixedly connected with filter cloth of box, the bottom sliding connection of collection box has the backup pad, the inner wall fixedly connected with bottom plate of flow gathering the frame, the top fixedly connected with spring telescopic link of bottom plate, the top rotation of bottom plate is connected with drive gear, one side fixedly connected with first rack that the spring telescopic link is close to drive gear, the inside sliding connection of fixed plate has the measuring stick, the bottom fixedly connected with second rack of measuring stick, drive gear is located between first rack and the second rack and meshes with first rack and second rack respectively.

Preferably, a strip-shaped groove is formed in one side, close to the protruding rod, of the connecting plate, the upper width and the lower width of the conveying belt are the same as the length of the strip-shaped groove, and one end, far away from the conveying belt, of the protruding rod is inserted into the strip-shaped groove and is in sliding connection with the strip-shaped groove.

Preferably, the rotation directions of the third transmission parts inside the two fixing plates are the same, the bottom of the flow gathering frame is conical, and the impeller is positioned below the opening at the bottom of the flow gathering frame.

Preferably, the impeller is composed of a rotating shaft and blades, the blades are arrayed around the circumference of the rotating shaft, and half of the blades of the impeller are positioned below the openings of the flow gathering frame.

Preferably, the top of backup pad has seted up the hole that leaks, the bottom surface of backup pad and the top contact of spring telescopic link, the filter cloth is the elasticity flexible material.

Preferably, circular holes are formed in four corners of the top plate, the top end of the first transmission piece is located in the circular holes, the bottom surface of the cleaning plate is attached to the top surface of the filter plate, and the guide plate is obliquely arranged.

A method for dredging a blocking point of municipal drainage operation comprises the following steps:

Step one: in the rainwater flowing process, impurities such as leaves and silt on the ground are flushed to the top of the water outlet, and the cover plate at the top of the water outlet can filter large-volume impurities such as leaves in water flow, so that the inside of the water outlet is kept smooth, and the water outlet is preliminarily prevented from being blocked.

Step two: after the water flow enters the water outlet, the scraping plate is driven by the impact force of the water flow to do reciprocating motion to push sediment deposited in the water outlet to two sides of the water outlet, so that the water outlet is further kept smooth, and the dredging effect is achieved.

Step three: sediment gradually gathers in the both sides of outlet, and the scraper blade continues to promote sediment and makes sediment pile up and fall into the inside of collecting box, avoids sediment accumulation to block up the outlet, strengthens the mediation effect.

Step four: the sediment in the collecting box is gradually increased, the measuring rod is driven to move upwards through the weight of the sediment, and the accumulation of the sediment in the collecting box is known manually through observing the height of the measuring rod.

Step five: after sediment is accumulated to a certain degree in the collecting box, the leaves at the top of the water outlet are manually removed, the cover plate is opened, sediment in the collecting box is removed, and the dredging operation of the water outlet is completed.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the impact force of water flow can be utilized through the device, the sediment on the filter plate is cleaned by the reciprocating motion of the water flow driving cleaning plate, external energy is not needed in the process, the effect of saving energy is achieved, the automatic dredging of the filter plate is realized, the filter plate is effectively prevented from being blocked by using the filter hole for a long time, and the smoothness of drainage is ensured;

Compared with the existing dredging device, the device can be directly installed in the water outlet, the water outlet is directly dredged in rainy days, manpower is saved, the dredging efficiency of the water outlet is quickened, meanwhile, the cost for dredging the water outlet is saved, and the device is convenient for large-scale use.

Secondly, can collect the silt that clears up on the filter through collecting the box, avoid silt to pile up on the filter, guaranteed the unobstructed nature of filter, prevent simultaneously that silt from getting into the inside of drain pipe and leading to the drain pipe to block up, silt is collected by collecting the box and is convenient for carry out unified clearance to collect the box and place in the inside of installing the framework, be convenient for take and lay, improve the simplicity that the device used, be convenient for further improve the dredging efficiency of outlet;

The manual work can judge the volume of collecting the inside sediment accumulation of box through observing the height on measuring stick top, conveniently carries out unified clearance to collecting the inside sediment of box, further improves the result of use of device.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is an exploded view of the structure of the collecting box of the present invention;

FIG. 4 is a schematic cross-sectional view of a collection box according to the present invention;

FIG. 5 is a schematic view of the inside of the mounting frame structure of the present invention;

FIG. 6 is a schematic diagram of the structural connection relationship of the second transmission member according to the present invention;

FIG. 7 is a schematic view of the mounting of the structure of the collecting box of the present invention;

fig. 8 is an enlarged schematic view of the structure a in fig. 7 according to the present invention.

In the figure:

1. Installing a frame body;

The cleaning mechanism comprises: 201. a flow collecting frame; 202. a bottom frame; 203. a housing; 204. a top plate; 205. an impeller; 206. a transmission belt; 207. a fixing plate; 208. a filter plate; 209. a first transmission member; 210. a second transmission member; 211. a third transmission member; 212. a transmission belt; 213. a limit bar; 214. a connecting plate; 215. a protruding rod; 216. a cleaning plate;

The collection mechanism includes: 301. a collection box; 302. a side plate; 303. a deflector; 304. a baffle; 305. a spring support rod; 306. a filter cloth; 307. a support plate; 308. a bottom plate; 309. a measuring rod; 310. a spring telescoping rod; 311. a first rack; 312. a transmission gear; 313. and a second rack.

Detailed Description

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

Example 1

Referring to fig. 1 to 8, an embodiment of the present invention is provided: the utility model provides an automatic dredging device of plugging point of municipal drainage operation, includes installation framework 1, and the inside of installation framework 1 is provided with the clearance mechanism that is used for striking off the plug and pushes away the plug, and the outside of clearance mechanism is provided with the collection mechanism that is used for accomodating the plug;

the cleaning mechanism comprises a flow gathering frame 201, the flow gathering frame 201 is fixedly connected to the bottom of a mounting frame body 1, a bottom fixedly connected with a bottom frame 202 of the flow gathering frame 201, an impeller 205 is connected to the inside of the bottom frame 202 in a rotating mode, two sides, close to the ends of the impeller 205, of the flow gathering frame 201 are fixedly connected with a shell 203, two fixing plates 207 are fixedly connected to the inner walls, close to one sides of the two shells 203, of the mounting frame body 1 respectively, one side, far away from the two fixing plates 207, of the two fixing plates 207 is rotatably connected with a first transmission piece 209, a transmission belt 206 is connected between one end, far away from the two first transmission pieces 209, of the end, far away from the impeller 205, of the two fixing plates 207 is fixedly connected with a filter plate 208, one end, far away from the transmission belt 206, of the two second transmission pieces 210 is fixedly connected with a third transmission piece 211, the two ends, far away from the second transmission pieces 210 and the third transmission piece 207 are rotatably connected to the inside of the fixing plates 207, the two outer transmission pieces of the two third transmission pieces 211 are rotatably connected with a transmission belt 212, one side, far away from the first transmission piece 212 is fixedly connected with a limit plate 213, the two side, far away from the two limit plates 213 are fixedly connected with the top plate 207, and the two limit plates 213 are fixedly connected with the top plate 213, and the top plate 213 is fixedly connected with the top plate 213.

Further, the collection mechanism comprises two collection boxes 301, the two collection boxes 301 are respectively inserted into one ends, far away from each other, of the two fixing plates 207, one side, close to the filter plate 208, of the top of the collection boxes 301 is fixedly connected with a guide plate 303, two ends of the guide plate 303 are respectively fixedly connected with a side plate 302, one side inner wall, close to the filter plate 208, of the collection boxes 301 is rotationally connected with a baffle 304, a spring support rod 305 is rotationally connected between the bottom of the baffle 304 and one side inner wall, far away from the filter plate 208, of the collection boxes 301, filter cloth 306 is fixedly connected to the bottom of the inner wall of the collection boxes 301, a support plate 307 is slidingly connected to the bottom of the collection boxes 301, a bottom plate 308 is fixedly connected with a bottom plate 308, the top of the bottom plate 308 is fixedly connected with a spring telescopic rod 310, the top of the bottom plate 308 is rotationally connected with a transmission gear 312, one side, close to the transmission gear 312, of the spring telescopic rod 311 is fixedly connected with a measuring rod 309, the bottom of the measuring rod 309 is fixedly connected with a second rack 313, and the transmission gear 312 is located between the first rack 311 and the second rack 313 and is meshed with the first rack 311 and the second rack 313 respectively.

Further, a bar-shaped groove is formed on one side of the connecting plate 214, which is close to the protruding rod 215, the upper and lower width of the conveying belt 212 is the same as the length of the bar-shaped groove, one end of the protruding rod 215, which is far away from the conveying belt 212, is inserted into the bar-shaped groove and is in sliding connection with the bar-shaped groove, the protruding rod 215 pushes the inner wall of the bar-shaped groove along with the circulating movement of the conveying belt 212, then the connecting plate 214 is driven to slide, and the limiting strip 213 is used for limiting the sliding track of the connecting plate 214 and keeping the connecting plate 214 in a vertical state.

Further, the third driving members 211 inside the two fixing plates 207 have the same rotation direction, and the bottom of the flow collecting frame 201 is tapered to collect the water flow, so that the water flow has a larger impact force to drive the impeller 205 to rotate, and the impeller 205 is located below the bottom opening of the flow collecting frame 201.

Further, the impeller 205 is composed of a rotating shaft and blades, the blades are arrayed around the circumference of the rotating shaft, half of the blades of the impeller 205 are located below the opening of the flow collecting frame 201, and water falling in the flow collecting frame 201 drives the impeller 205 to rotate through the blades on one side of the impact impeller 205, so that the utilization of water impact force is realized, and the effect of saving energy is achieved.

Further, the top of the supporting plate 307 is provided with a water leakage hole, part of water entering the collecting box 301 can pass through the filter cloth 306 and the water leakage hole to fall into the collecting frame 201, the bottom surface of the supporting plate 307 contacts with the top end of the spring telescopic rod 310, the filter cloth 306 is made of elastic telescopic materials, as sediment on the filter cloth 306 is continuously increased, the filter cloth 306 falls under the action of the weight of the sediment, and the pressure of the sediment drives the supporting plate 307 to move downwards to compress the spring telescopic rod 310.

Further, the circular hole has all been seted up at the top four corners of roof 204, the top of first driving medium 209 is located the inside in circular hole, the bottom surface of clearance board 216 is laminated with the top surface of filter 208, guide plate 303 slope sets up, first driving medium 209 is used for showing the volume of collecting box 301 inside silt, the artifical volume of collecting box 301 inside silt accumulation of can judging through the high of observing the measuring stick 309 top, conveniently unified clearance is carried out to collecting box 301 inside silt, further improve the result of use of the device, the effect of guide plate 303 is to the water that falls at collecting box 301 top is guided, avoid inside a large amount of water rushes into collecting box 301 when baffle 304 is opened, the effect of curb plate 302 is that makes collecting box 301 supported by fixed plate 207, the inside degree of depth of collecting box 301 entering installation framework 1 is restricted.

Example two

Step four: the sediment in the collecting box is gradually increased, the measuring rod 309 is driven to move upwards through the weight of the sediment, and the accumulation amount of the sediment in the collecting box is known by observing the measuring rod 309.

Working principle: in the initial state, no sediment exists in the filter cloth 306, and the top end of the spring telescopic rod 310 is contacted with the bottom of the supporting plate 307;

after the rainwater washes out the impurities on the ground to the top of the device, the top plate 204 blocks the large-volume impurities such as leaves in the water flow, so as to primarily prevent the inside of the installation frame 1 from being blocked, ensure the drainage effect of the installation frame 1, the sediment in the water can pass through the top plate 204 along with the water flow and enter the inside of the installation frame 1, the filter plate 208 filters the impurities such as the sediment in the water, so that the sediment stays on the filter plate 208, the water continuously falls into the flow collecting frame 201 through the filter holes of the filter plate 208, under the flow guiding and collecting of the water by the flow collecting frame 201, the water flows out from the opening at the bottom of the flow collecting frame 201, the water flow impacts on half of the blades of the impeller 205 to drive the impeller 205 to rotate, the impeller 205 rotates under the driving action of the driving belt 206 to drive the first driving member 209 to rotate, the first driving member 209 rotates to drive the two second driving members 210 meshed with the first driving member 209, the rotation of the two second driving members 210 respectively drives the two third driving members 211 to rotate, the rotation of the two third driving members 211 drives the transmission belt 212 to circularly rotate, the rotation of the transmission belt 212 drives the convex rod 215 to circularly move, the circular movement of the convex rod 215 pushes the connecting plate 214 to linearly slide on the limiting strip 213 in a reciprocating manner, the reciprocating movement of the connecting plate 214 drives the cleaning plate 216 to reciprocally move to push sediment deposited on the surface of the filter plate 208 to two sides of the filter plate 208, the impact force of water flow can be utilized through the design, the cleaning plate 216 is reciprocally moved through the water flow to clean the sediment on the filter plate 208, the outside energy is not needed in the process, the effect of saving energy is achieved, the automatic dredging of the filter plate 208 is realized, the filter plate 208 is effectively prevented from being blocked by using a filter hole for a long time, the smoothness of the device is ensured, compared with the prior dredging device, the device can be directly arranged in a water outlet, the water outlet is directly dredged in rainy days, so that manpower is saved, the dredging efficiency of the water outlet is improved, meanwhile, the cost for dredging the water outlet is saved, and the large-scale use is facilitated;

After the cleaning plate 216 pushes the sediment to make the sediment contact with the baffle 304, the sediment presses the baffle 304 to deflect towards the direction away from the filter plate 208, the spring support rods 305 are compressed, at this time, gaps are generated between the baffle 304 and the collecting box 301, the sediment enters the inside of the collecting box 301 through the gaps and then falls onto the filter cloth 306 under the action of gravity, when the cleaning plate 216 does not push the sediment any more, the stretching elasticity of the spring support rods 305 drives the baffle 304 to deflect and reset to shield the opening of the collecting box 301, water flow is prevented from entering the inside of the collecting box 301, along with the continuous increase of the sediment on the filter cloth 306, the filter cloth 306 deforms and falls under the action of the sediment weight, the pressure of the sediment drives the support plate 307 to move downwards to compress the spring telescopic rods 310, when the spring telescopic rods 310 are compressed, the top ends move downwards to drive the first racks 311 to move downwards to drive the transmission gears 312 to rotate, the transmission gear 312 rotates to drive the second rack 313 to move upwards, the second rack 313 moves upwards to drive the measuring rod 309 to move upwards, sediment cleaned on the filter plate 208 can be collected through the collecting box 301, sediment is prevented from accumulating on the filter plate 208, smoothness of the filter plate 208 is guaranteed, meanwhile, sediment is prevented from entering the inside of a drain pipe to cause the drain pipe to be blocked, sediment is collected by the collecting box 301 to be convenient to clean uniformly, the collecting box 301 is placed in the installation frame 1 to be convenient to take and place, the convenience of using the device is improved, dredging efficiency of a water outlet is further improved, the sediment accumulation amount inside the collecting box 301 can be judged manually through observing the height of the top end of the measuring rod 309, uniform cleaning of sediment inside the collecting box 301 is facilitated, and the using effect of the device is further improved;

After sediment in the collecting box 301 is accumulated to a certain amount, the top plate 204 is lifted manually, then the collecting box 301 is pulled out from the inside of the installation frame body 1, at this time, the supporting plate 307 does not press the spring telescopic rod 310 any more, the stretching elastic force of the spring telescopic rod 310 drives the first rack 311 to move upwards for resetting, the first rack 311 moves upwards to drive the transmission gear 312 to rotate, and the transmission gear 312 rotates to drive the second rack 313 and the measuring rod 309 to move downwards for resetting, so that the device can be used again conveniently.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic pull throughs of plugging point of municipal drainage operation, includes installation framework (1), its characterized in that: a cleaning mechanism for scraping off the blocking objects and pushing away the blocking objects is arranged in the mounting frame body (1), and a collecting mechanism for collecting the blocking objects is arranged outside the cleaning mechanism;

The cleaning mechanism comprises a flow collecting frame (201), the flow collecting frame (201) is fixedly connected to the bottom of an installation frame body (1), a bottom frame (202) is fixedly connected to the bottom of the flow collecting frame (201), impellers (205) are connected to the inside rotation of the bottom frame (202), two sides, close to the ends of the impellers (205), of the flow collecting frame (201) are fixedly connected with a shell (203), two fixing plates (207) are fixedly connected to the inner walls, close to one sides of the two shells (203), of the installation frame body (1), one side, far away from, of the fixing plates (207) is respectively connected with a first transmission piece (209) in a rotating mode, one end, far away from, of the first transmission piece (209) is connected with a transmission belt (206) in a transmission mode between the ends of the impellers (205), two transmission belts (208) are fixedly connected between the two fixing plates (207), one ends, far away from the transmission belts (206), of the first transmission pieces (209) are connected with two second transmission pieces (210) in a meshed mode, two transmission pieces (211) are connected with three transmission belts (211) in a meshed mode, one end, two transmission pieces (211) are connected with three transmission pieces (211) are connected with one transmission piece (211), one side fixedly connected with protruding pole (215) of first driving medium (209) is kept away from to conveyer belt (212), one side fixedly connected with two spacing (213) of fixed plate (207) near filter (208), two the outside sliding connection of spacing (213) has connecting plate (214), one side fixedly connected with clearance board (216) of fixed plate (207) is kept away from to connecting plate (214), roof (204) have been placed at the top of installation framework (1).

2. The automatic plugging point dredging device for municipal drainage operation according to claim 1, wherein: the collecting mechanism comprises collecting boxes (301), the collecting boxes (301) are arranged at two ends, far away from each other, of the collecting boxes (301) are respectively inserted into one ends, far away from each other, of two fixing plates (207), one side, close to the filter plate (208), of the top of each collecting box (301) is fixedly connected with a guide plate (303), two ends of each guide plate (303) are fixedly connected with side plates (302), one side inner wall, close to the filter plate (208), of each collecting box (301) is rotatably connected with a baffle plate (304), spring supporting rods (305) are rotatably connected between the bottom of each baffle plate (304) and one side inner wall, far away from the filter plate (208), filter cloth (306) are fixedly connected to the bottom of the inner wall of each collecting box (301), supporting plates (307) are slidably connected to the bottom of each collecting box (301), a bottom plate (308) is fixedly connected to the inner wall of each collecting box (201), a spring telescopic rod (310) is fixedly connected to the top of each bottom plate (308), a transmission gear (312) is rotatably connected to the top of each bottom plate (308), one side, close to the first side (309) is fixedly connected with a measuring rod (309), one side (309) of each measuring rod is fixedly connected to the bottom of each measuring rod (309), the transmission gear (312) is positioned between the first rack (311) and the second rack (313) and is respectively connected with the first rack (311) and the second rack (313) in a meshed manner.

3. The automatic plugging point dredging device for municipal drainage operation according to claim 1, wherein: the connecting plate (214) is close to one side of the protruding rod (215) and is provided with a strip-shaped groove, the upper width and the lower width of the conveying belt (212) are the same as the length of the strip-shaped groove, and one end, away from the conveying belt (212), of the protruding rod (215) is inserted into the strip-shaped groove and is in sliding connection with the strip-shaped groove.

4. The automatic plugging point dredging device for municipal drainage operation according to claim 1, wherein: the rotation directions of the third transmission parts (211) in the two fixing plates (207) are the same, the bottoms of the flow gathering frames (201) are conical, and the impellers (205) are positioned below the openings at the bottoms of the flow gathering frames (201).

5. The automatic plugging point dredging device for municipal drainage operation according to claim 1, wherein: the impeller (205) consists of a rotating shaft and blades, the blades are arrayed around the circumference of the rotating shaft, and half of the blades of the impeller (205) are positioned below the opening of the flow gathering frame (201).

6. The automatic plugging point dredging device for municipal drainage operation according to claim 2, wherein: the top of backup pad (307) has seted up the hole that leaks, the bottom surface of backup pad (307) and the top contact of spring telescopic link (310), filter cloth (306) are the elasticity flexible material.

7. The automatic plugging point dredging device for municipal drainage operation according to claim 2, wherein: circular holes are formed in four corners of the top plate (204), the top end of the first transmission piece (209) is located in the circular holes, the bottom surface of the cleaning plate (216) is attached to the top surface of the filter plate (208), and the guide plate (303) is obliquely arranged.

8.A method for dredging a blocking point of municipal drainage work, which is applied to the automatic blocking point dredging device for municipal drainage work as claimed in any one of claims 1 to 7, and is characterized by comprising the following steps:

Step four: the sediment in the collecting box is gradually increased, the measuring rod (309) is driven to move upwards through the weight of the sediment, and the accumulation amount of the sediment in the collecting box is known by observing the measuring rod (309) in a high degree.