CN114775758A

CN114775758A - Drainage pipeline structure and construction method thereof

Info

Publication number: CN114775758A
Application number: CN202210536334.5A
Authority: CN
Inventors: 黄盛焕; 黄逢维; 张华勇; 许自毫
Original assignee: Guangdong Guanxiong Construction Group Co ltd
Current assignee: Guangdong Guanxiong Construction Group Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-07-22

Abstract

The application relates to a drainage pipeline structure and a construction method thereof, relating to the technical field of drainage pipelines, wherein the pipeline structure comprises a water pipeline and a clear drainage pipeline which are arranged on a foundation, and the drainage pipeline structure also comprises an impurity removal device which comprises a water guide mechanism; the water distributor comprises a plurality of filter plates, all the filter plates are arranged in the side wall of the water pipeline, and the filter plates which are adjacent up and down are respectively positioned at two opposite sides of the water pipeline; a drainage channel is arranged on each filter plate, and a guide surface is arranged on each filter plate; the two opposite sides of the ground based on the water pipeline are respectively provided with a preset cavity, and the side wall of the preset cavity is provided with a passing channel for impurities to pass through corresponding to each filter plate; the construction method comprises the following steps: introducing water, removing impurities and cleaning. This application has the effect that reduces drainage pipe blocking phenomenon, has improved drainage pipe's application stability.

Description

Drainage pipeline structure and construction method thereof

Technical Field

The application relates to the technical field of drainage pipelines, in particular to a drainage pipeline structure and a construction method thereof.

Background

The municipal drainage pipeline structure is arranged below an urban road and is used for absorbing and clearing rainwater in the city. With the development of modern urban systems, more and more drainage structures are communicated with each other, so that the clear drainage quantity of the drainage system to rainwater is increased continuously, and finally, the rainwater is discharged outwards through a uniform through drainage pipe.

Most of the existing drainage pipeline structures comprise a cleaning and drainage pipeline and a plurality of drainage wells, and the drainage wells are arranged on the ground and used for absorbing rainwater and part of domestic water on the inland of a city. The cleaning and draining pipeline is arranged at one end of each drainage well, which is positioned inside the ground, and is used for absorbing the rainwater cleaned and drained by all the drainage wells and cleaning and draining the rainwater uniformly.

However, foreign matters and impurities are easily carried in the flowing process of rainwater, so that the drainage pipeline structure is easy to be blocked and unsmooth in circulation locally, and the application stability of the drainage pipeline structure is greatly influenced.

Disclosure of Invention

In order to solve the problem that a drainage pipeline structure is easy to block, the application provides the drainage pipeline structure and a construction method thereof.

In a first aspect, the application provides a drainage pipeline structure which adopts the following technical scheme:

a drainage pipeline structure comprises a water pipeline and a clear drainage pipeline which are arranged on a foundation, and further comprises an impurity removal device, wherein the impurity removal device comprises a water guide mechanism; the water distributor comprises a plurality of filter plates, all the filter plates are sequentially arranged in the side wall of the water pipeline along the vertical direction, and the filter plates which are adjacent up and down are respectively positioned at two opposite sides of the water pipeline; each filter plate is provided with a drainage channel for rainwater to pass through, and each filter plate is provided with a guide surface for impurities to be accumulated at the joint of the filter plate and the water pipeline; ground still is provided with respectively based on the relative both sides of water pipeline and predetermines the cavity, the lateral wall of predetermineeing the cavity corresponds each filter and is provided with the passageway of marcing that is used for supplying impurity to pass.

By adopting the technical scheme, after the rainwater and the impurities enter the water pipeline together, the rainwater passes through the drainage channel to be converged into the clear drainage pipeline and discharged outwards; impurities carried in rainwater are accumulated on the filter plate, and the impurities slide towards the included angle between the filter plate and the positioning plate under the inclination action of the guide surface and finally slide into the inner cavity of the preset cavity through the passing channel; the process reduces the phenomenon of local blockage of the drainage pipeline structure by reducing the quantity of impurities passing through the water pipeline, and ensures the application stability of the drainage pipeline structure.

In a specific possible embodiment, the water distributor further comprises a fixing member, and the fixing member comprises a positioning plate, an orientation screw rod and a locking nut; the locating plate sets up on the filter, directional lead screw sets up in the lateral wall of water pipeline, the locating plate is worn to locate by directional lead screw, lock nut threaded connection is on directional lead screw.

Through adopting above-mentioned technical scheme, the locating plate has increased the area of contact of filter with the water service pipe, and after directional lead screw passed the locating plate, reduced the locating plate and appeared loose the phenomenon of shaking, the prejudice movement by a wide margin in the lateral wall of water service pipe, locking nut screw up the back on directional lead screw, ensured the application stability of filter in the water service pipe to the filter of being convenient for maintainer quick dismantlement long-time use is with the maintenance, renew.

In a specific possible implementation scheme, a passing hole is formed in the positioning plate corresponding to the passing channel, and a limiting plate is rotatably arranged in the side wall of the passing hole.

By adopting the technical scheme, the through holes are arranged corresponding to the through channels, so that impurities accumulated on the filter plate can be quickly separated from the filter plate to enter the preset cavity for accumulation; the limiting plate is blocked in the side wall of the passing hole under the action of gravity, so that the phenomenon that rainwater and impurities directly pass through the passing hole and enter the preset cavity is reduced; after the impurity on the filter accumulated a certain amount, the impurity can promote the limiting plate upset to the accumulation in getting into predetermineeing the cavity.

In a specific implementation scheme, the impurity removing device further comprises an impurity guiding mechanism, and the impurity guiding mechanism comprises a driving cylinder, a first connecting rod, a second connecting rod and an external connecting piece; the driving air cylinder is arranged in the side wall of the preset cavity, one end of the connecting rod I is rotatably connected with the output end of the driving air cylinder, and the other end of the connecting rod I is rotatably connected with the connecting rod II; and one end of the second connecting rod, which is far away from the first connecting rod, is connected with the limiting plate through an external piece.

By adopting the technical scheme, when the output end of the driving cylinder is in a contracted state, the limiting plate freely hangs down under the action of gravity so as to plug the through hole; when driving the overhanging output of actuating cylinder, the connecting rod one is towards the direction displacement of keeping away from the limiting plate, and two displacements of connecting rod one pulling connecting rod, two slopes of connecting rod pulling limiting plates make the limiting plate upset, and then the impurity of gathering on the filter of being convenient for passes the via hole fast and walks the passageway to the entering is predetermine the cavity.

In a specific possible embodiment, the impurity guiding mechanism further comprises a steering assembly, wherein the steering assembly comprises a butt bolt and a fastening nut; the connecting rod I is provided with a yielding hole for the output end of the driving air cylinder to abut into, the butt-joint bolt penetrates through the connecting rod I and the output end of the driving air cylinder simultaneously, and the fastening nut is in threaded connection with the butt-joint bolt.

By adopting the technical scheme, after the rod body of the butt joint bolt simultaneously penetrates through the first connecting rod and the output end of the driving cylinder, the first connecting rod is connected with the output end of the driving cylinder and can rotate relative to the output end of the driving cylinder, so that the second connecting rod is driven by the first connecting rod to move and turn; the fastening nut is screwed on the butt-joint bolt through threads, so that the connection strength of the first connecting rod and the output end of the driving cylinder is guaranteed, and an operator can conveniently and quickly remove the connection between the first connecting rod and the driving cylinder to maintain and replace the new connecting rod.

In a specific possible embodiment, the impurity guiding mechanism further comprises a reversing assembly, wherein the reversing assembly comprises a connecting ring and an abutting arc plate; the connecting ring is arranged at the output end of the driving cylinder, the abutting arc plate is arranged on the second connecting rod, and the abutting arc plate is connected with the connecting ring.

Through adopting above-mentioned technical scheme, the go-between links to each other with the butt arc board, makes connecting rod one and two high-speed joint of connecting rod and can rotation each other, and then has ensured the work efficiency that the connecting rod drove the displacement of connecting rod two and turned to.

In a specific possible embodiment, the outer joint comprises a guide chain, a counter-pull arc plate, an extension plate and a connecting bolt; one end of the guide chain is connected with the second connecting rod, and the other end of the guide chain is connected with the counter-pulling arc plate; the extension plates are respectively arranged at two ends of the counter-pulling arc plate in the length direction, and the connecting bolts are used for fixing the extension plates on the limiting plates.

By adopting the technical scheme, the contact area between the counter-pulling arc plate and the limiting plate is increased by the extension plate, and the connecting bolt is used for quickly fixing the extension plate on the limiting plate; the guide chain enables the second connecting rod to pull the limiting plate to rotate reversely at different angles through the reversing characteristic of the second connecting rod, and therefore the overturning efficiency of the limiting plate is improved.

In a specific possible embodiment, the impurity removing device further comprises a screening mechanism, and the screening mechanism comprises a screening plate; the screening plate is arranged in the side wall of the preset cavity and used for collecting impurities entering the preset cavity.

Through adopting above-mentioned technical scheme, divide the sieve plate to be used for accepting the impurity that gets into in the predetermined cavity, help the maintenance personal to unify clearance impurity, improved the convenience that the maintenance personal cleared up the predetermined cavity.

In a specific implementation scheme, a flow guide channel for rainwater to pass through is arranged on the sieve plate in a penetrating manner, and a drainage tube communicated with the cavity of the preset cavity is arranged in the side wall of the water pipeline.

By adopting the technical scheme, the flow guide channel is used for rainwater to pass through the separation sieve plate, so that the phenomenon of mixing of rainwater and impurities is reduced, and the working efficiency of a maintainer for cleaning the impurities is improved; the drainage tube is used for guiding rainwater in the cavity of predetermineeing to the water pipeline in, has reduced and has predetermine the interior diapire of cavity and has appeared the accumulational phenomenon of rainwater.

In a second aspect, the present application further provides a construction method of a drainage pipeline structure, including the following construction steps:

water supply: rainwater with impurities passes through a drainage channel on the layer-by-layer filter plate, and the rainwater passes through a water pipeline and enters a clear drainage pipeline to be collected; impurities are accumulated at the joint of the filter plate and the water pipeline under the guidance of the guide surface;

removing impurities: impurities on the filter plate pass through the passing channel and enter the preset cavity, so that the impurities filtered by the filter plate are collected in the preset cavity, and the water passing efficiency of the filter plate is guaranteed;

cleaning: the maintenance personnel are through getting into predetermineeing the cavity to the impurity that gathers in the clean predetermineeing the cavity.

By adopting the technical scheme, rainwater can smoothly pass through the water pipeline and enter the cleaning and discharging pipeline for cleaning and discharging, and impurities are uniformly collected in the preset cavity, so that the cleaning by maintenance personnel is facilitated; the process effectively guarantees the water passing efficiency of the drainage pipeline and the application stability of long-time operation.

In summary, the present application has the following beneficial technical effects:

1. after the rainwater and the impurities enter the water pipeline, the rainwater passes through the drainage channel to be gathered into the clear drainage pipeline and discharged outwards; impurities carried in rainwater are accumulated on the filter plate, and the impurities slide towards the included angle between the filter plate and the positioning plate under the inclination action of the guide surface and finally slide into the inner cavity of the preset cavity through the passing channel; in the process, the phenomenon of local blockage of the drainage pipeline structure is reduced by reducing the quantity of impurities penetrating through the water pipeline, and the application stability of the drainage pipeline structure is ensured;

2. when the output end of the driving cylinder is in a contraction state, the limiting plate freely hangs down under the action of gravity to block the passing hole; when the overhanging output end of the driving cylinder is driven, the first connecting rod moves towards the direction far away from the limiting plate, the second connecting rod moves, the second connecting rod tilts to pull the limiting plate, so that the limiting plate is overturned, and impurities accumulated on the filter plate conveniently quickly pass through the passing hole and the passing channel to enter the preset cavity.

Drawings

FIG. 1 is a schematic view of a drainage pipeline structure in an embodiment of the present application in a vertical cross section;

FIG. 2 is a schematic view showing the positional relationship between the filter plate and the positioning plate in the embodiment of the present application;

FIG. 3 is an exploded view of the connection between the positioning plate and the orientation screw in the embodiment of the present application;

fig. 4 is an exploded schematic view of the connection relationship between the limiting plate and the driving cylinder in the embodiment of the application.

Description of reference numerals:

1. a foundation; 11. a water pipeline; 111. a drainage tube; 12. cleaning a discharge pipeline; 13. presetting a cavity; 131. a passage; 2. an impurity removal device; 3. a water distributor; 31. a filter plate; 311. a water drainage channel; 312. a guide surface; 4. a fixing member; 41. positioning a plate; 411. a pass-through hole; 412. a limiting plate; 42. orienting a screw rod; 43. a lock nut; 5. a trash guide mechanism; 51. a driving cylinder; 52. a first connecting rod; 521. a hole of abdication; 53. a second connecting rod; 6. a steering assembly; 61. a butt bolt; 62. fastening a nut; 7. a reversing component; 71. a connecting ring; 72. abutting against the arc plate; 8. an external connector; 81. a guide chain; 82. oppositely pulling the arc plates; 83. an extension plate; 84. a connecting bolt; 9. a screening mechanism; 91. separating the sieve plates; 911. a flow guide channel.

Detailed Description

The embodiment of the application discloses drainage pipe structure.

The present application is described in further detail below with reference to figures 1-4.

Referring to fig. 1, the drainage pipeline structure includes a water passage pipe 11 and a drainage pipe 12 provided on a foundation 1. In the present embodiment, the water passage pipe 11 is provided on the foundation 1 in a vertical direction for collecting rainwater on the foundation 1. The cleaning and draining pipeline 12 is arranged in the foundation 1 along the horizontal direction, and the cleaning and draining pipeline 12 is connected with the water pipeline 11 so as to clean and drain the rainwater collected by the water pipeline 11.

Referring to fig. 1 and 2, the drainage pipeline structure further includes an impurity removing device 2, and the impurity removing device 2 includes a water distributor 3. The water guide 3 includes a plurality of filter plates 31 and a fixing member 4 for mounting the filter plates 31 in the water passage 11, and the number of the filter plates 31 may be four in the present embodiment. Four filter plates 31 set up in the lateral wall of water pipeline 11 along vertical direction equidistance, and two adjacent filter plates 31 about and are located 11 relative both sides walls of water pipeline respectively.

Referring to fig. 2 and 3, the fixing member 4 includes a positioning plate 41, a positioning screw 42, and a lock nut 43, wherein the positioning plate 41 is welded to one end of the filter plate 31 in a vertical direction, and the positioning screw 42 is welded to the inside of the side wall of the water passage pipe 11 in a horizontal direction. The directional screw rod 42 can pass through the positioning plate 41, so that the positioning plate 41 abuts against the side wall of the water pipeline 11, the locking nut 43 is screwed on the directional screw rod 42 through threads, the positioning plate 41 is fixed in the side wall of the water pipeline 11, the application stability of the filter plate 31 on the water pipeline 11 is further guaranteed, and convenience is brought to dismounting and renewing by constructors.

Referring to fig. 2, each filter plate 31 is provided with a drainage channel 311 in a penetrating manner, and the drainage channel 311 is used for rainwater to pass through the filter plate 31, so as to ensure the working efficiency of rainwater passing through the water pipeline 11. At this time, impurities entrained in the rainwater are located on the filter plates 31. In order to reduce the blocking of the sewage passage 311 by the impurities, the filter plate 31 is further inclined with a guide surface 312, and the guide surface 312 is inclined from one end of the filter plate 31 far away from the positioning plate 41 to one end of the filter plate 31 close to the positioning plate 41. In this embodiment, the cross section of the filter plate 31 with the guide surface 312 in the vertical direction is a right triangle, and impurities are accumulated at the included angle between the positioning plate 41 and the filter plate 31 by the inclination action of the guide surface 312.

Referring to fig. 1 and 2, the foundation 1 is provided with preset cavities 13 on two opposite sides of the water pipeline 11, and the preset cavities 13 and the water pipeline 11 are covered by well covers to cover openings at the top in an application state, so that the application safety of pedestrians and vehicles on the roadbed is guaranteed. It is provided with a plurality of passageways 131 to pass through on the lateral wall of predetermineeing cavity 13, and a passageway 131 that passes corresponds a filter 31 setting, and passes passageway 131 and is located filter 31 top. The positioning plate 41 is provided with a through hole 411 in a penetrating manner, and the through holes 411 and the through channels 131 which are close to each other are symmetrical to each other, so that impurities accumulated on the filter plate 31 can pass through the through hole, and then enter the preset cavity 13 to be accumulated uniformly.

Referring to fig. 1 and 3, in order to reduce the phenomenon that rainwater directly passes through the passing hole 411 and the passing channel 131 and enters the inner cavity of the preset cavity 13, a limiting plate 412 is rotatably arranged in the side wall of the passing hole 411 through a hinge, and the limiting plate 412 is positioned in the passing hole 411 along a vertical defensive line under the action of gravity. In this embodiment, the bottom wall of the limiting plate 412 is rounded, so that the limiting plate 412 can be rotated by the hinge under the pushing of a certain amount of impurities, and further, the impurities can smoothly enter the predetermined cavity 13.

Referring to fig. 4, in order to ensure that the impurities on the filter plate 31 smoothly enter the preset cavity 13, the impurity removing device 2 further comprises an impurity guiding mechanism 5, and the impurity guiding mechanism 5 comprises a driving cylinder 51, a first connecting rod 52, a steering assembly 6, a second connecting rod 53, a reversing assembly 7 and an external connector 8. The driving cylinder 51 is arranged in the side wall of the preset cavity 13, the first connecting rod 52 is rotatably arranged at the output end of the driving cylinder 51 through the steering assembly 6, the second connecting rod 53 is rotatably arranged at one end, far away from the driving cylinder 51, of the first connecting rod 52 through the reversing assembly 7, and one end, far away from the first connecting rod 52, of the second connecting rod 53 is connected with the limiting plate 412 through the external piece 8.

Referring to fig. 4, when the output end of the driving cylinder 51 is in a contracted state, the limiting plate 412 freely hangs down under the action of gravity to block the through hole 411. When the output end of the air cylinder 51 is driven to extend, the first connecting rod 52 displaces in the direction away from the limiting plate 412, the second connecting rod 52 pulls the second connecting rod 53 to displace, and the second connecting rod 53 obliquely pulls the limiting plate 412, so that the limiting plate 412 is turned over, and impurities accumulated on the filter plate 31 can rapidly pass through the passing hole 411 and the passing channel 131 to enter the preset cavity 13.

Referring to fig. 4, a yielding hole 521 is formed in the first connecting rod 52 in a penetrating manner, and the yielding hole 521 is used for allowing the output end of the driving cylinder 51 to abut into. The steering assembly 6 comprises a butt bolt 61 and a fastening nut 62, the rod body of the butt bolt 61 can simultaneously penetrate through the first connecting rod 52 and the output end of the driving cylinder 51, the fastening nut 62 is screwed on the butt bolt 61, so that the second connecting rod 53 is connected with the output end of the driving cylinder 51, and the second connecting rod 53 can rotate relative to the output end of the driving cylinder 51.

Referring to fig. 4, the reversing assembly 7 includes a connecting ring 71 and an abutting arc plate 72, wherein the connecting ring 71 is welded to the end wall of the first connecting rod 52 far from the driving cylinder 51, and the abutting arc plate 72 penetrates through the connecting ring 71 and is welded to the end wall of the second connecting rod 53 close to the first connecting rod 52, so that the second connecting rod 53 and the first connecting rod 52 form a rotating connection.

Referring to fig. 4, the outer joint member 8 includes a guide chain 81, an arc counter plate 82, an extension plate 83, and a connection bolt 84, and in the present embodiment, the guide chain 81 is a steel chain. One end of the guide chain 81 is welded with the end wall of the first connecting rod 52 far away from the second connecting rod 53, and the other end is welded on the counter-pull arc plate 82. The number of the extension plates 83 can be two, the two extension plates 83 are respectively located at two ends of the opposite pulling arc plate 82 in the length direction, the extension plates 83 abut against the limiting plate 412, and the connecting bolt 84 is fixedly connected with the extension plates 83 and the limiting plate 412.

Referring to fig. 4, the output end of the driving cylinder 51 extends outward at intervals, the first connecting rod 52 displaces in a direction away from the limiting plate 412, and the second connecting rod 53 is driven to displace in a direction away from the limiting plate 412 after the first connecting rod 52 rotates relative to the output end of the driving cylinder 51. The second connecting rod 53 adjusts the direction relative to the limiting plate 412 through the guide chain 81 and pulls the limiting plate 412 to turn over, so that the impurities on the filter plate 31 can pass through the abdicating hole 521 and the passing channel 131 to enter the inner cavity of the preset cavity 13.

Referring to fig. 1, in the present embodiment, a climbing ladder is provided on a side wall of the preset chamber 13 so that a maintenance worker can enter the preset chamber 13 to clean impurities. In order to improve the convenience of maintainer clearance predetermine interior impurity of cavity 13, edulcoration device 2 is still including dividing sieve mechanism 9, divides sieve mechanism 9 including dividing sieve 91, divides sieve 91 to weld in the lateral wall of predetermineeing cavity 13 along the horizontal direction, divides sieve 91 diapire and predetermines the interior wall clearance fit of cavity 13. It is provided with a plurality of water conservancy diversion passageways 911 to run through on the branch sieve 91, and the impurity that gets into to predetermine cavity 13 is gathered on dividing sieve 91, and the rainwater that flows in with the impurity passes water conservancy diversion passageway 911 to gather in the interior diapire of predetermineeing cavity 13.

Referring to fig. 1, in order to reduce the phenomenon that rainwater accumulates on the bottom wall of the predetermined chamber 13, a draft tube 111 is provided obliquely downward in the side wall of the water passage pipe 11. The drainage tube 111 is communicated with the inner cavity of the preset cavity 13 to drain rainwater in the preset cavity 13 to the water pipeline 11, thereby helping to reduce water accumulation on the bottom wall of the preset cavity 13.

The implementation principle of this application embodiment drainage pipe structure does:

after the rainwater with impurities enters the water passage 11, the rainwater passes through the drainage passage 311 and finally merges into the clean drain pipe 12 to be discharged. Impurities entrained in rainwater are accumulated on the filter plate 31, and the impurities are accumulated at the included angle between the filter plate 31 and the positioning plate 41 under the inclination action of the guide surface 312. When a certain amount of impurities are accumulated, the impurities can push the limiting plate 412 to turn over, so that the impurities pass through the passing hole 411 and the passing channel 131 to be accumulated in the preset cavity 13.

When the driving cylinder 51 extends the output end outwards at one end time interval, the first connecting rod 52 displaces towards the direction far away from the limiting plate 412, and after the first connecting rod 52 rotates relative to the output end of the driving cylinder 51, the second connecting rod 53 is driven to displace towards the direction far away from the limiting plate 412. The second connecting rod 53 adjusts the direction relative to the limiting plate 412 through the guide chain 81 and pulls the limiting plate 412 to turn over, so that impurities on the filter plate 31 can pass through the abdicating hole 521 and the passing channel 131 to enter the inner cavity of the preset cavity 13.

The maintainer can enter the preset cavity 13 through the climbing ladder to clean impurities, accumulated water in the preset cavity 13 is drained through the drainage pipe 111 in the water pipeline 11 and finally flows into the drainage pipeline 12 to be drained outwards.

The embodiment of the application also discloses an application method of the drainage pipeline structure, which comprises the following application steps:

water passing: the rainwater with impurities passes through the drainage channels on the layer-by-layer filter plates, and the rainwater passes through the water pipeline and enters the clear drainage pipeline to be collected. The impurities are accumulated at the joint of the filter plate and the water pipeline under the guidance of the guide surface.

Removing impurities: impurities on the filter plate penetrate through the passing channel and enter the preset cavity, so that the impurities filtered by the filter plate are collected in the preset cavity. At the moment, rainwater can smoothly pass through the water pipeline and enter the clear discharge pipeline for clear discharge, impurities are collected in the preset cavity in a unified mode, and therefore the water passing efficiency of the filter plate is effectively guaranteed.

Cleaning: maintenance personnel can clean impurities accumulated in the preset cavity by entering the preset cavity. The setting of predetermineeing the cavity is convenient for maintainer clearance drainage pipe and is accomodate impurity, and then has effectively ensured drainage pipe's the application stability of leading to water efficiency and long-time operation.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a drainage pipe structure, is including setting up water service pipeline (11) and clear drain pipe way (12) on ground (1), its characterized in that: the drainage pipeline structure further comprises an impurity removal device (2), and the impurity removal device (2) comprises a water distributor (3); the water distributor (3) comprises a plurality of filter plates (31), all the filter plates (31) are sequentially arranged in the side wall of the water pipeline (11) along the vertical direction, and the filter plates (31) which are adjacent up and down are respectively positioned at two opposite sides of the water pipeline (11); each filter plate (31) is provided with a drainage channel (311) for rainwater to pass through, and each filter plate (31) is provided with a guide surface (312) for impurities to be accumulated at the joint of the filter plate (31) and the water pipeline (11); the foundation (1) is further provided with preset cavities (13) on two opposite sides of the water pipeline (11), and the side wall of each preset cavity (13) is provided with a passing channel (131) for impurities to pass through corresponding to each filter plate (31).

2. A drain pipe structure according to claim 1, wherein: the water distributor (3) further comprises a fixing piece (4), and the fixing piece (4) comprises a positioning plate (41), a directional screw rod (42) and a locking nut (43); the positioning plate (41) is arranged on the filter plate (31), the directional screw rod (42) is arranged in the side wall of the water pipeline (11), the directional screw rod (42) penetrates through the positioning plate (41), and the locking nut (43) is in threaded connection with the directional screw rod (42).

3. A drainage pipeline structure according to claim 2, wherein: a passing hole (411) is formed in the positioning plate (41) corresponding to the passing channel (131), and a limiting plate (412) is rotatably arranged in the side wall of the passing hole (411).

4. A drainage pipeline structure according to claim 3, wherein: the impurity removing device (2) further comprises an impurity guiding mechanism (5), wherein the impurity guiding mechanism (5) comprises a driving cylinder (51), a first connecting rod (52), a second connecting rod (53) and an external connector (8); the driving air cylinder (51) is arranged in the side wall of the preset cavity (13), one end of the first connecting rod (52) is rotatably connected with the output end of the driving air cylinder (51), and the other end of the first connecting rod is rotatably connected with the second connecting rod (53); one end of the second connecting rod (53), which is far away from the first connecting rod (52), is connected with the limiting plate (412) through an external connector (8).

5. The drain pipe structure according to claim 4, wherein: the impurity guiding mechanism (5) further comprises a steering assembly (6), wherein the steering assembly (6) comprises a butt bolt (61) and a fastening nut (62); the connecting rod I (52) is provided with a yielding hole (521) for the output end of the driving cylinder (51) to abut into, the butt joint bolt (61) penetrates through the connecting rod I (52) and the output end of the driving cylinder (51) simultaneously, and the fastening nut (62) is connected to the butt joint bolt (61) in a threaded mode.

6. A drainage pipe structure according to claim 4, wherein: the impurity guiding mechanism (5) further comprises a reversing assembly (7), and the reversing assembly (7) comprises a connecting ring (71) and an abutting arc plate (72); the connecting ring (71) is arranged at the output end of the driving cylinder (51), the abutting arc plate (72) is arranged on the second connecting rod (53), and the abutting arc plate (72) is connected with the connecting ring (71).

7. A drainage pipe structure according to claim 4, wherein: the external connector (8) comprises a guide chain (81), an opposite-pulling arc plate (82), an extension plate (83) and a connecting bolt (84); one end of the guide chain (81) is connected with the second connecting rod (53), and the other end of the guide chain is connected with the oppositely-pulling arc plate (82); the extension plates (83) are respectively arranged at two ends of the opposite-pulling arc plates (82) in the length direction, and the connecting bolts (84) are used for fixing the extension plates (83) on the limiting plates (412).

8. The drain pipe structure according to claim 1, wherein: the impurity removing device (2) further comprises a screening mechanism (9), and the screening mechanism (9) comprises a screening plate (91); divide sieve (91) to set up in the lateral wall of predetermineeing cavity (13) to be used for collecting the entering predetermine the impurity in the cavity (13).

9. A drainage pipe structure according to claim 8, wherein: a flow guide channel (911) for rainwater to pass through is arranged on the sieve separating plate (91) in a penetrating mode, and a drainage tube (111) communicated with the inner cavity of the preset cavity (13) is arranged in the side wall of the water pipeline (11).

10. The construction method of a drainage pipeline structure according to any one of claims 1 to 9, wherein: the method comprises the following construction steps:

water passing: rainwater with impurities passes through a drainage channel (311) on the layer-by-layer filter plate (31), and the rainwater passes through a water pipeline (11) and enters a clear drainage pipeline (12) to be collected; impurities are accumulated at the joint of the filter plate (31) and the water pipeline (11) under the guidance of the guide surface (312);

removing impurities: impurities on the filter plate (31) penetrate through the passing channel (131) and enter the preset cavity (13), so that the impurities filtered by the filter plate (31) are collected in the preset cavity (13) in a centralized manner, and the water passing efficiency of the filter plate (31) is guaranteed;

cleaning: maintenance personnel can clean impurities accumulated in the preset cavity (13) by entering the preset cavity (13).