CN112538879A

CN112538879A - Highway sewage treatment structure and treatment method thereof

Info

Publication number: CN112538879A
Application number: CN202011593721.XA
Authority: CN
Inventors: 郑伟松; 郑焕森
Original assignee: Dongguan Jinjianda Construction Co ltd
Current assignee: Dongguan Jinjianda Construction Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-03-23
Anticipated expiration: 2040-12-29
Also published as: CN112538879B

Abstract

The invention relates to the technical field of municipal engineering, in particular to a highway sewage treatment structure and a treatment method thereof, and the technical scheme is as follows: the highway sewage treatment structure comprises a first road edge, a second road edge and a third road edge, wherein a flow guide block is received at the top of the first road edge, a flow guide inclined plane is arranged between one end of the flow guide block, which is far away from a highway, and the top of the flow guide block, an open drain is formed by sinking the top of the second road edge, a sewage interception net is arranged at an opening of the open drain, a planting cavity is formed by sinking the top of the third road edge, a first drainage pipe is connected between the open drain and the planting cavity, a blind drain is arranged in the first road edge, a second drainage pipe is connected between the planting cavity and the blind drain, and a third drainage pipe is connected between the open drain and the blind drain.

Description

Highway sewage treatment structure and treatment method thereof

Technical Field

The invention relates to the technical field of municipal engineering, in particular to a highway sewage treatment structure and a treatment method thereof.

Background

On a common road, due to frequent vehicle running, the road surface of the road is polluted by heavy metal, dirty oil, tire dust and the like, and in rainy days, if initial rainwater on the road directly flows into rivers, lakes and underground water veins through a drainage channel, the water body is greatly polluted.

In the related art, in order to treat initial rainwater, a water purification tank is installed in an open place near a road, and after water is collected by the water purification tank, sewage such as initial rainwater in the water purification tank is treated

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the sewage is treated after water collection, the workload of sewage treatment is large, and the rainwater resource cannot be well utilized.

Disclosure of Invention

In order to easily treat initial rainwater of a road and recycle rainwater resources, the application provides a road sewage treatment structure and a treatment method thereof.

First aspect, the application provides a highway sewage treatment structure adopts following technical scheme:

a highway sewage treatment structure is arranged on two sides of a highway in a driving direction and comprises a first road edge, a second road edge and a third road edge which are closely arranged in a direction away from the highway gradually, wherein the top heights of the first road edge and the second road edge are lower than the road surface height of the highway, and the top height of the third road edge is higher than the road surface height of the highway;

a flow guide block is received at the top of the first road edge, the top of the flow guide block is not higher than the road surface of the road, a flow guide inclined plane is arranged between one end of the flow guide block, which is far away from the road, and the top of the flow guide block, the flow guide inclined plane inclines to the top of the first road edge, the top of the second road edge sinks to form a drainage open channel, an opening of the drainage open channel is provided with a sewage interception net, the top of the third road edge sinks to form a planting cavity, soil is accumulated in the planting cavity and plants are planted in the soil, a first drainage pipe is connected between the drainage open channel and the planting cavity, and rainwater in the drainage open channel flows to the planting cavity through the first drainage pipe;

the drainage blind ditch is arranged in the first path edge, the planting cavity and a second drainage pipe are connected between the drainage blind ditches, rainwater in the planting cavity flows to the drainage blind ditch through the second drainage pipe, a third drainage pipe is connected between the drainage open ditch and the drainage blind ditch, rainwater in the drainage open ditch is drained to the drainage blind ditch through the third drainage pipe, and the heights of the first drainage pipe, the second drainage pipe and the third drainage pipe are reduced in sequence.

By adopting the technical scheme, in rainy days, initial rainwater flows to the highway sewage treatment structure from the road surface of the highway, the initial rainwater firstly flows to the open drainage ditch on the second road edge through the flow guide block on the first road edge, when the initial rainwater flows into the open drainage ditch, sundries and the like on the initial rainwater are intercepted through the sewage interception net, then the initial rainwater in the open drainage ditch flows to the planting cavity through the first drainage pipe for being absorbed by soil and plants in the planting cavity, on one hand, the soil and the plants can purify the initial rainwater, on the other hand, the initial rainwater can be recycled, the initial rainwater in the planting cavity finally flows to the blind drainage ditch from the second drainage pipe and is drained away from the blind drainage ditch, after the rainwater continuously enters the open drainage ditch from the road surface, the water level in the open drainage ditch gradually rises, and because the later rainwater pollution is small, when the water level in the open drainage ditch rises to the third drainage pipe, later stage rainwater is in the direct drainage blind ditch of following the third drain pipe drainage to follow the drainage blind ditch and drain away, whole in-process carries out recycle and purification treatment to the initial stage rainwater through earth and the plant of planting the intracavity, makes highway processing structure have easily to handle highway initial stage rainwater, and carry out recycle's effect to rainwater resource.

Preferably, the vertical section of the width direction of the sewage intercepting net is concave.

Through adopting above-mentioned technical scheme for the debris that are held back by cutting dirty net can pile up on cutting dirty net, the processing of being convenient for.

Preferably, the quantity of cutting dirty net is a plurality of, and is a plurality of cut dirty net and closely arrange along the direction of travel of highway, it is provided with the pivot to cut dirty net rotation, the pivot is vertical to be run through cut back the net, the lower extreme of pivot is connected with the gag lever post, the gag lever post level sets up, the lateral wall of open drain ditch is provided with spacing seat, spacing seat deviates from the spacing groove has been seted up to the one side of open drain ditch lateral wall, the rotatory screw in of gag lever post accessible the spacing inslot.

Through adopting above-mentioned technical scheme, through rotatory pivot, can drive the gag lever post rotatory to make gag lever post screw in spacing inslot, make cut dirty net easily dismouting.

Preferably, the bottom of intercepting dirty net is provided with four first locating pieces, four be the rectangle between the first locating piece and arrange, the horizontal direction's of spacing seat both sides are provided with a second locating piece respectively, one side lateral wall of first locating piece with the long limit lateral wall coplane of intercepting dirty net, follow intercept dirty net length direction interval arrangement two the face that deviates from each other between the first locating piece apart from the distance equal along two of open drain length direction interval arrangement the distance of relative face between the second locating piece.

Through adopting above-mentioned technical scheme, will cut dirty net and install at the open-ended in-process of drainage open drain, utilize four first locating pieces to paste tight four second locating pieces one-to-one respectively, can make fast and intercept on the net accuracy is placed the mounted position to reach the location effect.

Preferably, a convex block is arranged on the sewage intercepting top surface of the sewage intercepting net, the upper end of the rotating shaft penetrates through the convex block, and the upper end of the rotating shaft is connected with a twisting block;

the screwing block comprises a connecting part and a control part, the connecting part is connected between the control part and the upper end of the rotating shaft, and the horizontal section of the control part is in a cross block shape.

Through adopting above-mentioned technical scheme, through twisting the control part of twisting the piece, the people of being convenient for control the rotation of the gag lever post of pivot lower extreme to further be convenient for people to cut dirty net and carry out the dismouting.

Preferably, the top of the projection is horizontally hinged with a locking block, the locking block is provided with a locking groove, and the control part can be embedded into the locking groove.

Through adopting above-mentioned technical scheme, when the control part embedding locked groove in, the piece rotation is twisted in order to restrict in the rotation of locking piece restriction control block to make and cut the opening that dirty net can stably install at the open drain.

Preferably, the top of the bump is provided with two hinged seats at intervals, the locking block is horizontally hinged between the two hinged seats, and a torsion spring is connected between the locking block and the hinged seats.

Through adopting above-mentioned technical scheme, the torsional spring makes the locking piece have the effect that resets to make the locking piece can stabilize the control part of locking wrong piece.

Preferably, the planting cavity is provided with a water inlet for communicating the first drainage pipe and a water outlet for communicating the second drainage pipe, a filter screen is arranged between the water inlet and the water outlet, and the filter screen is tightly attached to the side wall of the planting cavity.

Through adopting above-mentioned technical scheme, the setting up of filter screen can reduce the earth of planting the intracavity and enter into in first drain pipe and the second drain pipe to the condition that first drain pipe and second drain pipe take place to block up appears in the reduction.

Preferably, a one-way valve is arranged in the second drainage pipe, and the one-way valve is used for allowing water in the planting cavity to flow into the drainage blind ditch.

Through adopting above-mentioned technical scheme, when the water level in the drainage blind ditch is higher, the setting of check valve can avoid the water in the drainage blind ditch to flow backward to plant the intracavity.

In a second aspect, the present application provides a method for treating highway sewage, comprising the following steps:

the method comprises the following steps: placing the flow guide block at the top of the first road edge, and inclining the flow guide inclined plane of the flow guide block to the top of the second road edge;

step two: installing a sewage interception net at an opening of a drainage open ditch of the second road edge;

step three: soil is piled up in the planting cavity, and plants with water purification function, such as cress, are planted on the soil in the planting cavity;

step four: after the dirt intercepting net intercepts more sundries, the dirt intercepting net is detached to quickly clean the intercepted sundries, and the opening of the drainage open ditch is installed again after the sundries are cleaned.

Through adopting above-mentioned technical scheme, carry out recycle and purification treatment to the initial stage rainwater through earth and the plant of planting the intracavity for highway processing structure has easily to handle highway initial stage rainwater, and carry out recycle's effect to rainwater resource.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the initial rainwater is recycled and purified through soil and plants in the planting cavity, so that the highway treatment structure has the effects of easily treating the initial rainwater of the highway and recycling rainwater resources;

2. sundries intercepted by the sewage intercepting net can be accumulated on the sewage intercepting net, so that the treatment is convenient;

3. the limiting rod can be driven to rotate by rotating the rotating shaft, so that the limiting rod is screwed into the limiting groove, and the sewage intercepting net is easy to disassemble and assemble;

4. when the control part is embedded into the lock groove, the lock block limits the control block to rotate so as to limit the rotation of the screwing block, and therefore the sewage intercepting net can be stably installed at the opening of the open drain ditch.

Drawings

FIG. 1 is a schematic view of a highway sewage treatment structure located on one side of a highway according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the structure of FIG. 1

Fig. 4 is a partial structure diagram of the second road edge.

Description of reference numerals: 1. a first road edge; 11. draining an underdrain; 2. a second road edge; 21. draining the open ditch; 3. a third road edge; 31. a planting cavity; 311. a filter screen; 4. a flow guide block; 5. a sewage interception net; 61. a first drain pipe; 62. a second drain pipe; 63. a third drain pipe; 631. a one-way valve; 71. a bump; 72. twisting the block; 73. a rotating shaft; 74. a limiting rod; 75. a limiting seat; 751. a limiting groove; 81. a first positioning block; 82. a second positioning block; 91. a locking block; 92. a hinged seat; 93. a torsion spring.

Detailed Description

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

The embodiment of the application discloses highway sewage treatment structure. Referring to fig. 1 and 2, the highway sewage treatment structure is disposed at two sides of a highway driving direction, and comprises a first road edge 1, a second road edge 2 and a third road edge 3 which are closely arranged in a direction gradually far away from the highway, wherein the top heights of the first road edge 1 and the second road edge 2 are lower than the road surface height of the highway, the top heights of the first road edge 1 and the second road edge 2 are consistent, and the top height of the third road edge 3 is higher than the road surface height of the highway.

Referring to fig. 1 and 3, the top of the first road edge 1 is received with a flow guide block 4, the top height of the flow guide block 4 is not higher than the road surface height of the road, and in this embodiment, the top height of the flow guide block 4 is equal to the road surface height of the road. A diversion inclined plane is arranged between one end of the diversion block 4, which is far away from the highway, and the top of the diversion block 4, and the diversion inclined plane is inclined to the top of the first road edge 1. The top of the second road edge 2 is sunk to form a drainage open ditch 21, the drainage open ditch 21 is a rectangular ditch with an open top, and the open top of the drainage open ditch 21 is provided with a plurality of sewage intercepting nets 5. The third route sinks along the top of 3 and is formed with planting chamber 31, and planting chamber 31 is open-topped rectangle chamber, piles up earth and earth is planted and has the plant in the planting chamber 31 (not shown in the figure). A first drainage pipe 61 is connected between the open drainage ditch 21 and the planting cavity 31, the height of the first drainage pipe 61 gradually decreases from the open drainage ditch 21 to the planting cavity 31, and rainwater in the open drainage ditch 21 flows to the planting cavity 31 through the first drainage pipe 61.

Referring to fig. 1 and 3, a drainage blind ditch 11 is formed in the first road edge 1, the drainage blind ditch 11 is a rectangular ditch, a second drainage pipe 62 is connected between the planting cavity 31 and the drainage blind ditch 11, the height of the second drainage pipe 62 is gradually reduced from the interior of the planting cavity 31 to the drainage blind ditch 11, and rainwater in the planting cavity 31 flows to the drainage blind ditch 11 through the second drainage pipe 62.

Referring to fig. 1 and 3, a third drain pipe 63 is connected between the open drain 21 and the blind drain 11, the height of the third drain pipe 63 gradually decreases from the open drain 21 to the blind drain 11, and rainwater in the open drain 21 is drained to the blind drain 11 through the third drain pipe 63. Specifically, the heights of the first drain pipe 61, the second drain pipe 62, and the third drain pipe 63 are sequentially lowered. In rainy days, initial rainwater flows to the road sewage treatment structure from the road surface of the road, the initial rainwater firstly flows to the open drainage ditch 21 on the second road edge 2 through the flow guide block 4 on the first road edge 1, when the initial rainwater flows into the open drainage ditch 21, sundries and the like on the initial rainwater are intercepted through the intercepting net 5, then the initial rainwater in the open drainage ditch 21 flows into the planting cavity 31 through the first drainage pipe 61 and is absorbed by soil and plants in the planting cavity 31, on one hand, the soil and the plants can purify the initial rainwater, on the other hand, the initial rainwater can be recycled, the initial rainwater in the planting cavity 31 finally flows to the blind drainage ditch 11 from the second drainage pipe 62 and is drained away from the blind drainage ditch 11, when the rainwater continuously enters the open drainage ditch 21 from the road surface, the water level in the open drainage ditch 21 gradually rises, and the pollution caused by the later rainwater is small, therefore, when the water level in the open drain ditch 21 rises to the third drain pipe 63, the later stage rainwater is directly drained into the blind drain ditch 11 from the third drain pipe 63 and is drained away from the blind drain ditch 11, and in the whole process, the initial stage rainwater is recycled and purified through the soil and the plants in the planting cavity 31, so that the highway treatment structure has the effects of easily treating the initial stage rainwater of the highway and recycling rainwater resources.

Referring to fig. 4, the vertical section of the trash rack 5 in the width direction is concave, so that the foreign materials caught by the trash rack 5 can be accumulated on the trash rack 5 for convenient disposal. Further, the number of the sewage interception nets 5 is multiple, and the plurality of the sewage interception nets 5 are closely arranged along the driving direction of the road.

Referring to fig. 2 and 4, the sewage intercepting net 5 is rotatably provided with a rotating shaft 73, and each rotating shaft 73 for intercepting sewage is one in number, and the rotating shaft 73 vertically penetrates through the intercepting net. The lower extreme of pivot 73 is connected with gag lever post 74, and gag lever post 74 level sets up, and the lower extreme of pivot 73 is connected in the middle part of gag lever post 74 for gag lever post 74 can vertical rotation under the drive of pivot 73. The side wall of the open drain 21 is fixedly provided with a limiting seat 75, and the limiting seat 75 is in a rectangular seat shape. The limiting seat 75 is provided with a limiting groove 751 on the side thereof deviating from the side wall of the open drain ditch 21, and the limiting groove 751 is an arc-shaped groove, so that the limiting rod 74 can be screwed into the limiting groove 751 through rotation. At this time, the rotating shaft 73 is rotated to drive the limiting rod 74 to rotate, so that the limiting rod 74 is screwed into the limiting groove 751, and the sewage intercepting net 5 is easy to disassemble and assemble.

Referring to fig. 4, the bottom of the sewage intercepting net 5 is provided with four first positioning blocks 81, the first positioning blocks 81 are rectangular blocks, and the four first positioning blocks 81 are arranged in a rectangular shape. Two sides of the horizontal direction of the limiting seat 75 are respectively provided with a second positioning block 82, and the second positioning blocks 82 are also rectangular blocks. The side wall of one side of the first positioning block 81 is coplanar with the side wall of the long side of the sewage interception net 5, and the distance of the surfaces deviating from each other between the two first positioning blocks 81 arranged at intervals along the length direction of the sewage interception net 5 is equal to the distance of the surfaces opposite to the two second positioning blocks 82 arranged at intervals along the length direction of the open drain channel 21. The sewage intercepting net 5 is arranged in the opening process of the open drain ditch 21, the four first positioning blocks 81 are utilized to respectively and tightly cling to the four second positioning blocks 82 in a one-to-one correspondence manner, and the sewage intercepting net can be quickly and accurately placed on the installation position, so that the positioning effect is achieved.

Referring to fig. 2 and 4, the dirt intercepting top surface of the dirt intercepting net 5 is provided with a projection 71, the upper end of a rotating shaft 73 penetrates through the projection 71, and the upper end of the rotating shaft 73 is connected with a screwing block 72. The screwing block 72 comprises a connecting part and a control part, the connecting part is connected between the control part and the upper end of the rotating shaft 73, and the horizontal section of the control part is in a cross block shape. Through twisting the control part of the twisting block 72, people can conveniently control the rotation of the limiting rod 74 at the lower end of the rotating shaft 73, and therefore people can further conveniently disassemble and assemble the sewage intercepting net 5.

Referring to fig. 2 and 4, the top of the protrusion 71 is horizontally hinged with a locking block 91, the locking block 91 is provided with a locking groove, and the control part can be embedded into the locking groove. When the control part is inserted into the locking groove, the locking block 91 limits the control block from rotating to limit the screwing block 72 from rotating, so that the sewage interception net 5 can be stably installed at the opening of the open drain 21. Further, two hinged seats 92 are arranged at the top of the protruding block 71 at intervals, the locking block 91 is horizontally hinged between the two hinged seats 92, and a torsion spring 93 is connected between the locking block 91 and the hinged seats 92. The torsion spring 93 provides the locking piece 91 with a return effect, thereby enabling the locking piece 91 to stably lock the control portion of the screw 72.

Referring to fig. 1 and 3, the planting cavity 31 is provided with a water inlet for communicating the first drainage pipe 61 and a water outlet for communicating the second drainage pipe 62, a filter screen 311 is arranged between the water inlet and the water outlet, and the filter screen 311 is arranged close to the side wall of the planting cavity 31. The arrangement of the filter screen 311 can reduce the soil in the planting cavity 31 from entering the first drainage pipe 61 and the second drainage pipe 62, thereby reducing the occurrence of blockage of the first drainage pipe 61 and the second drainage pipe 62.

Referring to fig. 3, a check valve 631 is disposed in the second drainage pipe 62, and the check valve 631 allows water in the planting cavity 31 to flow into the drainage underdrain 11. When the water level in the drainage underdrain 11 is high, the one-way valve 631 is arranged to prevent the water in the drainage underdrain 11 from flowing back into the planting cavity 31.

The embodiment of the application also discloses a highway sewage treatment method, which comprises the following steps:

the method comprises the following steps: placing the flow guide block 4 on the top of the first road edge 1, and inclining the flow guide inclined plane of the flow guide block 4 to the top of the second road edge 2;

step two: installing the sewage interception net 5 at the opening of the open drainage ditch 21 of the second road edge 2;

step three: soil is piled up in the planting cavity 31, and plants with water purification function, such as cress, are planted on the soil in the planting cavity 31;

step four: after the dirt intercepting net 5 intercepts more sundries, the dirt intercepting net 5 is detached to quickly clear the intercepted sundries, and the opening of the water returning open drain 21 is installed again after the sundries are cleared.

The implementation principle of the highway sewage treatment structure and the treatment method thereof in the embodiment of the application is as follows: in rainy days, initial rainwater flows to the road sewage treatment structure from the road surface of the road, the initial rainwater firstly flows to the open drainage ditch 21 on the second road edge 2 through the flow guide block 4 on the first road edge 1, when the initial rainwater flows into the open drainage ditch 21, sundries and the like on the initial rainwater are intercepted through the intercepting net 5, then the initial rainwater in the open drainage ditch 21 flows into the planting cavity 31 through the first drainage pipe 61 and is absorbed by soil and plants in the planting cavity 31, on one hand, the soil and the plants can purify the initial rainwater, on the other hand, the initial rainwater can be recycled, the initial rainwater in the planting cavity 31 finally flows to the blind drainage ditch 11 from the second drainage pipe 62 and is drained away from the blind drainage ditch 11, when the rainwater continuously enters the open drainage ditch 21 from the road surface, the water level in the open drainage ditch 21 gradually rises, and the pollution caused by the later rainwater is small, therefore, when the water level in the open drain ditch 21 rises to the third drain pipe 63, the later stage rainwater is directly drained into the blind drain ditch 11 from the third drain pipe 63 and is drained away from the blind drain ditch 11, and in the whole process, the initial stage rainwater is recycled and purified through the soil and the plants in the planting cavity 31, so that the highway treatment structure has the effects of easily treating the initial stage rainwater of the highway and recycling rainwater resources.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the 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 highway sewage treatment structure, locates the both sides of highway direction of travel, its characterized in that: the road surface pavement structure comprises a first road edge (1), a second road edge (2) and a third road edge (3) which are closely arranged in the direction gradually far away from a road, wherein the top heights of the first road edge (1) and the second road edge (2) are lower than the road surface height of the road, and the top height of the third road edge (3) is higher than the road surface height of the road;

the top of the first road edge (1) is connected with a flow guide block (4), the top height of the flow guide block (4) is not higher than the road surface height of the road, a diversion inclined plane is arranged between one end of the diversion block (4) departing from the road and the top of the diversion block (4), the diversion inclined plane is inclined to the top of the first road edge (1), the top of the second road edge (2) sinks to form a drainage open ditch (21), an opening of the open drain ditch (21) is provided with a sewage interception net (5), the top of the third road edge (3) sinks to form a planting cavity (31), soil is piled up in the planting cavity (31) and plants are planted in the soil, a first drainage pipe (61) is connected between the open drainage ditch (21) and the planting cavity (31), rainwater in the open drain ditch (21) flows to the planting cavity (31) through the first drain pipe (61);

the drainage blind ditch (11) are arranged in the first road edge (1), a second drainage pipe (62) is connected between the planting cavity (31) and the drainage blind ditch (11), rainwater in the planting cavity (31) flows to the drainage blind ditch (11) through the second drainage pipe (62), a third drainage pipe (63) is connected between the drainage open ditch (21) and the drainage blind ditch (11), rainwater in the drainage open ditch (21) passes through the third drainage pipe (63) and is drained to the drainage blind ditch (11), and the heights of the first drainage pipe (61), the second drainage pipe (62) and the third drainage pipe (63) are sequentially reduced.

2. The sewage treatment structure for roads of claim 1, wherein: the vertical section of the sewage interception net (5) in the width direction is concave.

3. A road sewage treatment structure according to claim 2, wherein: cut the quantity of dirty net (5) and be a plurality of, it is a plurality of cut dirty net (5) and closely arrange along the direction of travel of highway, cut dirty net (5) and rotate and be provided with pivot (73), pivot (73) are vertical to be run through cut back the net, the lower extreme of pivot (73) is connected with gag lever post (74), gag lever post (74) level sets up, the lateral wall of open drain ditch (21) is provided with spacing seat (75), spacing seat (75) deviate from spacing groove (751) have been seted up to the one side of open drain ditch (21) lateral wall, the rotatory screw in of gag lever post (74) accessible in spacing groove (751).

4. A road sewage treatment structure according to claim 3, wherein: the bottom of intercepting dirty net (5) is provided with four first locating piece (81), four be the rectangle between first locating piece (81) and arrange, the both sides of the horizontal direction of spacing seat (75) are provided with one second locating piece (82) respectively, one side lateral wall of first locating piece (81) with the long limit lateral wall coplane of intercepting dirty net (5), follow intercept two of dirty net (5) length direction interval arrangement the distance of the face that deviates from each other between first locating piece (81) equals to follow two of drainage open drain (21) length direction interval arrangement the distance of relative face between second locating piece (82).

5. A road sewage treatment structure according to claim 4, wherein: a lug (71) is arranged on the sewage intercepting top surface of the sewage intercepting net (5), the upper end of the rotating shaft (73) penetrates through the lug (71), and the upper end of the rotating shaft (73) is connected with a twisting block (72);

the screwing block (72) comprises a connecting part and a control part, the connecting part is connected between the control part and the upper end of the rotating shaft (73), and the horizontal section of the control part is in a cross block shape.

6. A road sewage treatment structure according to claim 5, wherein: the top of lug (71) level articulates there is locking piece (91), the locked groove has been seted up to locking piece (91), the control part can be inlayed in the locked groove.

7. The sewage treatment structure for roads of claim 6, wherein: lug (71) top interval is provided with two articulated seats (92), locking piece (91) level hinge in two between articulated seat (92), locking piece (91) with be connected with torsional spring (93) between articulated seat (92).

8. The sewage treatment structure for roads of claim 7, wherein: plant chamber (31) and seted up the confession the water inlet of first drain pipe (61) intercommunication and confession the delivery port of second drain pipe (62) intercommunication, the water inlet with be provided with filter screen (311) between the delivery port, filter screen (311) paste tightly plant the lateral wall setting in chamber (31).

9. The sewage treatment structure for roads of claim 8, wherein: a one-way valve (631) is arranged in the second drainage pipe (62), and the one-way valve (631) is used for allowing water in the planting cavity (31) to flow into the drainage blind ditch (11).

10. A road sewage treatment method using the road sewage treatment structure according to any one of claims 1 to 9, characterized in that:

the method comprises the following steps: placing the flow guide block (4) at the top of the first road edge (1), and inclining the flow guide inclined plane of the flow guide block (4) to the top of the second road edge (2);

step two: installing the sewage interception net (5) at the opening of the open drain (21) of the second road edge (2);

step three: soil is piled up in the planting cavity (31), and plants with water purification function, such as cress, are planted on the soil in the planting cavity (31);

step four: after more sundries are intercepted by the sewage intercepting net (5), the sewage intercepting net (5) is detached to quickly clear the intercepted sundries, and the opening of the water returning open drain (21) is installed again after the sundries are cleared.