CN112211272B

CN112211272B - Road engineering drainage structure and construction method

Info

Publication number: CN112211272B
Application number: CN202011061676.3A
Authority: CN
Inventors: 唐庆霖; 叶忠炜; 郑敬英
Original assignee: Fujian Tunuo Construction Engineering Co ltd
Current assignee: Fujian Tunuo Construction Engineering Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-09-17
Anticipated expiration: 2040-09-30
Also published as: CN112211272A

Abstract

The application discloses road engineering drainage structures and construction method relates to road drainage technical field, has improved the easy problem of blockking up of rainwater grate, and it is including setting up in the drainage well of roadway both sides and installing the rainwater grate on drainage well head, set up the water inlet of a plurality of rectangular shapes on the rainwater grate, be equipped with toggle mechanism in the drainage well, toggle mechanism is including rotating the drive shaft of connecting in drainage well, around drive shaft pivoted bearing roller, the bearing roller sets up one at least, the both ends of bearing roller are provided with the telescopic link, and the one end and the drive shaft fixed connection of bearing roller are kept away from to two telescopic links. This application can dredge the debris of jam on the rainwater grate, improves the drainage efficiency of rainy day.

Description

Road engineering drainage structure and construction method

Technical Field

The application relates to the technical field of road drainage, in particular to a road engineering drainage structure and a construction method.

Background

At present, in urban road engineering, the design of a road drainage structure is an important step.

In the related art, as shown in fig. 1, a road includes a roadway 1 and sidewalks 2 arranged on two sides of the roadway 1, a plurality of drainage wells 3 connected with a municipal drainage system are arranged on two sides of the roadway 1 close to the sidewalks 2, the drainage wells 3 are arranged at intervals along the length direction of the roadway 1, and rainwater grates 4 are installed at well heads of the drainage wells 3.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: in heavy rainy days, rainwater on the road is gathered towards the drainage well and enters the drainage well through the rainwater grate. However, in the process of converging rainwater to the drainage well, sundries such as leaves and the like are often gathered on the rainwater grate along with the rainwater, so that the rainwater grate is blocked, the drainage effect of the rainwater grate is reduced, and the accumulated water is generated on the road surface.

Disclosure of Invention

In order to solve the problem that a rainwater grate is easy to block, the application provides a road engineering drainage structure and a construction method.

First aspect, this application provides a road engineering drainage structures, adopts following technical scheme:

a road engineering drainage structure comprises drainage wells arranged on two sides of a roadway and a rainwater grate arranged on the mouth of each drainage well, wherein a plurality of strip-shaped water inlets are formed in the rainwater grate, a stirring mechanism is arranged in each drainage well, the stirring mechanism comprises a driving shaft and a carrier roller, the driving shaft is rotatably connected into the drainage wells, the carrier roller rotates around the driving shaft, at least one carrier roller is arranged, telescopic rods are arranged at two ends of each carrier roller, one ends of the two telescopic rods, far away from the carrier roller, are fixedly connected with the driving shaft, each telescopic rod comprises an outer sleeve and an inner rod, the inner rod is slidably connected into the outer sleeve, one end of the outer sleeve is connected with the telescopic rod, one end of the inner rod, extending out of the outer sleeve, is connected with the carrier roller, and an elastic piece is arranged in the outer sleeve and used for driving the inner rod to extend out of the outer sleeve all the time; the carrier roller is coaxially provided with a plurality of driving plates which extend out of the water inlet to stir sundries when the carrier roller rotates to be abutted against the rainwater grate; the number of the drive plates is the same as that of the water inlets; the drainage well is characterized in that a driving mechanism used for driving the driving shaft to drive the carrier roller to rotate towards the sidewalk direction is further arranged in the drainage well, the driving mechanism comprises a water wheel rotatably connected to one side of the drainage well, the water wheel is arranged below the driving shaft, the water wheel comprises a wheel body and wheel shafts arranged on two sides of the wheel body and used for being rotatably connected with the side wall of the drainage well, the axis of each wheel shaft is parallel to the axis of the driving shaft, the wheel shafts at two ends of the wheel body are respectively in transmission connection with two ends of the driving shaft through a transmission belt so as to drive the driving shaft to rotate, and the side wall of the drainage well is obliquely and downwards provided with a drainage plate which guides rainwater onto the wheel body so as to drive the wheel body to rotate towards one side.

Through adopting above-mentioned technical scheme, in heavy rainy day, the rainwater gets into in the drainage well through the rainwater grate, and guide the rainwater to the waterwheel on through the drainage plate, make the waterwheel rotate towards one side, and drive the drive shaft through driving belt and rotate, drive the bearing roller through the telescopic link when the drive shaft rotates and rotate, when the bearing roller contradicts in the lower terminal surface of rainwater grate, the driver plate passes the water inlet and stretches out the up end of rainwater grate, and move along the length direction of water inlet, thereby to block up the debris in water inlet department and be pushed the border of rainwater grate by the driver plate, and then reach the purpose of mediation rainwater grate, the drainage efficiency on rainy day road surface has been improved.

Preferably, the number of the carrier rollers is three, and the three carrier rollers are uniformly arranged around the axis of the driving shaft at intervals.

Through adopting above-mentioned technical scheme, through the three bearing roller that sets up, can increase rainwater grate mediation number of times, improve the drainage effect of rainwater grate.

Preferably, the drive plate is of a hollow cylindrical structure, the drive plate comprises a circular ring and disks fixed on two sides of the circular ring, an internal gear is arranged on the inner side wall of the circular ring in a surrounding mode, a first gear meshed with the internal gear is rotatably connected between the two disks, a plurality of second gears are uniformly arranged on the outer peripheral side of the carrier roller at intervals along the axis direction of the carrier roller, the number of the second gears is the same as that of the carrier roller, and the second gears are meshed with the first gears; the middle parts of the two discs are provided with through holes, and the inner walls of the through holes are rotatably connected with the carrier roller through bearings.

Through adopting above-mentioned technical scheme, at the in-process that terminal surface was contradicted under bearing roller and the rainwater grate, the frictional force that produces between bearing roller and the rainwater grate can order about the bearing roller and rotate, and through the setting of first gear, second gear and internal gear, can order about the driver plate and produce the rotation direction opposite with the bearing roller to further push debris to the border of drainage well.

Preferably, the bearing roller is located and has seted up the annular on the periphery side between two driver plates at both ends, the cover is equipped with roller bearing in the annular, roller bearing external diameter is less than the external diameter of bearing roller, the one end of interior pole and roller bearing's outer lane fixed connection.

Through adopting above-mentioned technical scheme, the bearing roller passes through roller bearing and is connected with interior pole, can realize that the rotation between telescopic link one end and the bearing roller is connected to reduce the frictional force when the bearing roller rotates.

Preferably, the elastic member is a first spring arranged in the outer sleeve, one end of the first spring abuts against one end, close to the driving shaft, of the outer sleeve, and the other end of the first spring abuts against the inner rod.

Through adopting above-mentioned technical scheme, the first spring that adopts has the atress stably, simple structure's advantage.

Preferably, the drainage plates are arranged in two numbers, and the two drainage plates are obliquely arranged on two opposite side walls of the drainage well respectively.

Through adopting above-mentioned technical scheme, through two drainage plates that set up, can improve the guide effect of rainwater to better drive waterwheel rotates.

Preferably, a concave containing groove is formed in one side, close to the sidewalk, of the edge of the wellhead of the drainage well.

Through adopting above-mentioned technical scheme, the setting of storage tank can conveniently will promote to one side debris and collect.

Preferably, a plurality of object placing grooves are circumferentially and uniformly distributed on the outer peripheral side of the driving plate at intervals, an arc-shaped shifting piece is rotatably connected in each object placing groove, a second spring for driving the arc-shaped shifting piece to rotate towards the outside of each object placing groove is arranged in each object placing groove, one end of the second spring is fixed at the bottom of each object placing groove, and the other end of the second spring is fixed at the end part of the arc-shaped shifting piece close to one side of the bottom of each object placing groove.

Through adopting above-mentioned technical scheme, the setting of arc plectrum can drive the rotation of arc plectrum when the driver plate rotates, and further pushing the debris that blocks up in water inlet department to the storage tank.

In a second aspect, the present application provides a construction method for the above drainage structure of road engineering, comprising the following steps:

the first step is as follows: preparing construction materials, and customizing components required for installation in a drainage well;

the second step is that: the drainage well is sequentially provided with the waterwheel, the drainage plate and the driving shaft from bottom to top, the two ends of the wheel shaft are connected with the two ends of the driving shaft through the transmission belt, so that the transmission between the driving shaft and the waterwheel is realized, and finally the rainwater grate is arranged at the well mouth of the drainage well.

In summary, the present application includes at least one of the following benefits:

1. the rainwater grate dredging device can dredge sundries blocked on the rainwater grate, and improves the drainage efficiency of the road surface in rainy days;

2. the setting of storage tank can be collected stirring to one side debris.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

FIG. 2 is a schematic view of the overall structure of the present embodiment;

FIG. 3 is a schematic cross-sectional view of the highlighted drainage well of this embodiment;

FIG. 4 is a schematic structural diagram of the toggle mechanism embodying the present embodiment;

fig. 5 is a schematic structural view showing the connection between the carrier roller and the drive plate in the embodiment;

fig. 6 is a schematic structural view of the idler of the present embodiment;

fig. 7 is a schematic sectional view showing a connection structure of the telescopic rod and the carrier roller according to the embodiment;

FIG. 8 is a schematic cross-sectional view of the embodiment embodying the telescopic rod;

FIG. 9 is a schematic sectional view of the present embodiment embodying the drive mechanism;

FIG. 10 is a schematic structural view of a waterwheel embodying the present embodiment;

fig. 11 is a schematic structural view of the embodiment embodying the dial;

fig. 12 is a schematic sectional view showing the interior structure of the dial in the present embodiment.

Description of reference numerals: 1. a roadway; 2. a sidewalk; 3. a drainage well; 4. a rainwater grate; 5. a water inlet; 6. a drive shaft; 7. a carrier roller; 8. a telescopic rod; 81. an outer sleeve; 82. an inner rod; 9. a dial; 10. a ring groove; 11. a roller bearing; 12. a first spring; 13. a second spring; 14. a limit snap ring; 15. a containing groove; 16. water wheel; 17. mounting grooves; 18. a wheel body; 19. a wheel axle; 20. a first pulley; 21. a second pulley; 22. a drive belt; 23. a water tank; 24. a drainage plate; 25. a limiting strip; 26. a circular ring; 27. a disc; 28. an internal gear; 30. a first gear; 31. a second gear; 32. a through hole; 33. a storage groove; 34. a shifting sheet.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a road engineering drainage structure, and the drainage structure is shown in fig. 2 and 3, and comprises a plurality of drainage wells 3 arranged on two sides of a roadway 1 and rainwater grates 4 arranged at the well mouths of the drainage wells 3; the drainage wells 3 are uniformly arranged along the length direction of the roadway 1 at intervals, a plurality of strip-shaped water inlets 5 are formed in the rainwater grate 4, and rainwater can enter the drainage wells 3 through the water inlets 5 in the rainwater grate 4.

Referring to fig. 2 and 3, a shifting mechanism is arranged in the drainage well 3, and can dredge sundries blocked at the water inlet 5 along the length direction of the water inlet 5 and push the sundries to one side of the edge of the well head of the drainage well 3.

Referring to fig. 2 and 3, the toggle mechanism comprises a driving shaft 6 rotatably connected in the drainage well 3, and a supporting roller 7 rotating around the driving shaft 6, wherein two ends of the driving shaft 6 are rotatably connected to two opposite side walls of the drainage well 3 through bearings. At least one idler 7 is provided, that is, the number of the idlers 7 can be one, two, three or even more, and three are taken as an example in the present embodiment. The both ends of bearing roller 7 are provided with telescopic link 8, and the one end and the drive shaft 6 fixed connection of bearing roller 7 are kept away from to telescopic link 8, and three bearing roller 7 passes through telescopic link 8 and sets up around the even interval of the axis of drive shaft 6.

Referring to fig. 4 and 5, the carrier roller 7 is coaxially provided with a plurality of drive plates 9, the drive plates 9 are uniformly arranged along the length direction of the carrier roller 7 at intervals, and the number of the drive plates 9 is the same as that of the water inlets 5. When one end of the carrier roller 7 rotates along with the driving shaft 6 to abut against the lower end face of the rainwater grate 4, the driving plate 9 on the carrier roller 7 penetrates through the water inlet 5 and extends out of the upper end face of the rainwater grate 4, and then moves along the length direction of the water inlet 5, so that sundries blocked at the water inlet 5 are pushed to one side of the rainwater grate 4, the rainwater grate 4 is dredged, and the drainage effect is improved.

Referring to fig. 6 and 7, a ring groove 10 is formed on the outer peripheral side of the idler 7 between the two drive plates 9 close to the two ends. The roller bearing 11 is sleeved in the annular groove 10, the outer diameter of the roller bearing 11 is smaller than that of the carrier roller 7, and one end, far away from the driving shaft 6, of the telescopic rod 8 is fixedly connected with the outer peripheral side of the roller bearing 11. The idler 7 can adopt a multi-section splicing or welding mode to install components such as the roller bearing 11 and the like.

Further, referring to fig. 7 and 8, the telescopic rod 8 includes an outer sleeve 81 and an inner rod 82 slidably connected in the outer sleeve 81, wherein one end of the outer sleeve 81 is fixedly connected to the driving shaft 6, and one end of the inner rod 82 extending out of the outer sleeve 81 is fixedly connected to the outer periphery of the roller bearing 11. The outer sleeve 81 is provided with an elastic member for driving the inner rod 82 to extend out of the outer sleeve 81, the elastic member is a first spring 12 installed in the outer sleeve 81, one end of the first spring 12 abuts against the inner rod 82, and the other end abuts against one end of the outer sleeve 81 close to the driving shaft 6. The inner rod 82 always projects outwards of the outer sleeve 81 under the action of the first spring 12. The pipe orifice of the outer sleeve 81 is in interference clamping connection with a limiting snap ring 14 for limiting the inner rod 82 to be separated from the outer sleeve 81.

Referring to fig. 9, when the driving shaft 6 drives the carrier roller 7 to rotate to abut against one side of the lower end face of the rain grate 4, the catch plate 9 extends out of the upper end face of the rain grate 4, and when the driving shaft 6 continues to rotate towards the sidewalk 2, the catch plate 9 on the carrier roller 7 moves along the length direction of the water inlet 5, the inner rod 82 at the moment tends to contract towards the inside of the outer sleeve 81, so that the first spring 12 is squeezed, and under the action of the first spring 12, the catch plate 9 always moves along the length direction of the water inlet 5 in the process of contacting the carrier roller 7 with the rain grate 4.

Referring to fig. 9, a concave accommodating groove 15 is formed in one side, close to the sidewalk 2, of the wellhead of the drainage well 3, and a driving mechanism for driving the driving shaft 6 to drive the carrier roller 7 to rotate towards one side of the accommodating groove 15 is further arranged in the drainage well 3.

Referring to fig. 9 and 10, the driving mechanism includes a waterwheel 16 rotatably coupled to one side of the drain well 3, the waterwheel 16 being disposed below the driving shaft 6. The side of the drainage well 3 far away from the sidewalk 2 is provided with a mounting groove 17 for mounting a water supply vehicle 16, and the water supply vehicle 16 is rotatably connected in the mounting groove 17.

Referring to fig. 9 and 10, the waterwheel 16 includes a wheel body 18 and wheel shafts 19 disposed in the middle portions of two sides of the wheel body 18, the wheel shafts 19 are rotatably connected to two opposite groove walls of the mounting groove 17 through bearings, the axis of the wheel shafts 19 is parallel to the axis of the driving shaft 6, and water grooves 23 are uniformly distributed on the outer circumferential side of the wheel body 18. The wheel shafts 19 at the two ends of the wheel body 18 are respectively in transmission connection with the two ends of the driving shaft 6 through transmission belts 22. Furthermore, a first belt pulley 20 is fixed on each of the two wheel shafts 19, a second belt pulley 21 is fixed on each of the two ends of the driving shaft 6, and a transmission belt 22 is wound between the first belt pulley 20 and the second belt pulley 21, so that the driving connection between the waterwheel 16 and the driving shaft 6 is realized.

Referring to fig. 9, the lateral wall slope of drainage well 3 is provided with downwards and guides rainwater to wheel body 18 in order to order about wheel body 18 towards storage tank 15 one side pivoted drainage plate 24, and drainage plate 24 is provided with two, and two drainage plates 24 set up respectively on two relative lateral walls of drainage well 3, and the both sides of 24 length direction of drainage plates are all protruding to have spacing 25. When rainwater enters the drainage well 3, the rainwater is gathered on the drainage plate 24 and guided to the water tank 23 on the upper part of the wheel body 18 close to the containing groove 15 through the drainage plate 24, so that the waterwheel 16 rotates towards one side.

Referring to fig. 11 and 12, the dial 9 has a cylindrical structure with a hollow interior, and the dial 9 includes a circular ring 26 and disks 27 fixed to both sides of the circular ring 26. An inner gear 28 is fixedly arranged around the inner side wall of the circular ring 26, a first gear 30 meshed with the inner gear 28 is installed between the two disks 27, and a gap exists between the two disks 27 and the first gear 30. A plurality of second gears 31 are arranged on the outer periphery side of the carrier roller 7 at intervals along the axial direction, the number of the second gears 31 is the same as that of the drive plates 9, and the second gears 31 are meshed with the first gears 30. Through holes 32 are formed in the middle of the two circular discs 27, and the inner walls of the through holes 32 are rotatably connected with the carrier roller 7 through bearings.

When the supporting roller 7 abuts against the lower end face of the rainwater grate 4 and moves along the length direction of the water inlet 5, friction is generated when the supporting roller 7 abuts against the rainwater grate 4, so that relative rotation is formed between the supporting roller 7 and the rainwater grate 4, the first gear 30 is driven to rotate, the first gear 30 can drive the driving plate 9 to rotate reversely through the second gear 31 when rotating, and when the driving plate 9 moves along the length direction of the water inlet 5, sundries can be further pushed into the accommodating groove 15 through rotation.

Referring to fig. 11 and 12, a plurality of object placing grooves 33 are circumferentially and uniformly arranged on the outer peripheral side of the driving plate 9 at intervals, an arc-shaped shifting piece 34 is rotatably connected to the object placing grooves 33, a second spring 13 for driving the arc-shaped shifting piece 34 to rotate towards the outside of the object placing grooves 33 is arranged in the object placing grooves 33, one end of the second spring 13 is fixed to the bottom of the object placing grooves 33, and the other end of the second spring 13 is fixed to one end away from the hinge point of the arc-shaped shifting piece 34. The arcuate paddle 34 may be fully received in the storage tray 33. Under the action of the second spring 13, one end of the arc-shaped shifting piece 34 can extend out of the storage groove 33 and form a certain included angle with the outer side of the driving plate 9. The arc-shaped shifting piece 34 can shift sundries in the rotating process of the shifting plate 9, and further dredge the water inlet 5.

The implementation principle of a road engineering drainage structures of this application embodiment is: during heavy rainy day, the rainwater that gets into in the drainage shaft 3 can converge to waterwheel 16 through drainage plate 24 on, make waterwheel 16 rotate, thereby drive shaft 6 and rotate, and drive shaft 6 drives bearing roller 7 and rotates to contradicting in the lower terminal surface of rainwater grate 4, and roll along rainwater grate 4, when making driver plate 9 on the bearing roller 7 remove towards the direction of storage tank 15 along water inlet 5, driver plate 9 rotation drives driver plate 34 and rotates, thereby will block up in the debris of water inlet 5 department push to storage tank 15.

The embodiment of the application also discloses a construction method of the road engineering drainage structure, which comprises the following steps:

the first step is as follows: preparing construction materials, customizing components required for installation in the drainage well 3;

the second step is that: the method comprises the following steps that a waterwheel 16, a drainage plate 24 and a driving shaft 6 are sequentially arranged in a drainage well 3 from bottom to top, two ends of a wheel shaft 19 are connected with two ends of the driving shaft 6 through a transmission belt 22 so as to realize transmission between the driving shaft 6 and the waterwheel 16, and finally, a rainwater grate 4 is arranged at a well mouth of the drainage well 3;

the third step: an accommodating groove 15 is formed at the edge of the drainage close to the sidewalk 2.

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 road engineering drainage structures, is including setting up in drainage shaft (3) of roadway (1) both sides and installing rainwater grate (4) on drainage shaft (3) well head, set up water inlet (5) of a plurality of rectangular shapes on rainwater grate (4), its characterized in that: the drainage well (3) is internally provided with a shifting mechanism, the shifting mechanism comprises a driving shaft (6) rotatably connected in the drainage well (3) and a carrier roller (7) rotating around the driving shaft (6), at least one carrier roller (7) is arranged, two ends of the carrier roller (7) are provided with telescopic rods (8), one ends of the two telescopic rods (8) far away from the carrier roller (7) are fixedly connected with the driving shaft (6), each telescopic rod (8) comprises an outer sleeve (81) and an inner rod (82) connected in the outer sleeve (81) in a sliding manner, one end of the outer sleeve (81) is connected with the telescopic rods (8), one end of the inner rod (82) extending out of the outer sleeve (81) is connected with the carrier roller (7), and an elastic piece for driving the inner rod (82) to extend out of the outer sleeve (81) all the time is arranged in the outer sleeve (81); the carrier roller (7) is coaxially provided with a plurality of driving plates (9) which extend out of the water inlet (5) to stir sundries when the carrier roller (7) rotates to be abutted against the rainwater grate (4); the number of the drive plates (9) is the same as that of the water inlets (5); the drainage well (3) is also internally provided with a driving mechanism for driving the driving shaft (6) to drive the carrier roller (7) to rotate towards the sidewalk (2), the driving mechanism comprises a waterwheel (16) which is rotationally connected with one side of the drainage well (3), the waterwheel (16) is arranged below the driving shaft (6), the waterwheel (16) comprises a wheel body (18) and wheel shafts (19) which are arranged at the two sides of the wheel body (18) and are used for being rotationally connected with the side wall of the drainage well (3), the axis of the wheel axle (19) and the axis of the driving shaft (6) are parallel to each other, wheel shafts (19) at two ends of the wheel body (18) are respectively in transmission connection with two ends of the driving shaft (6) through a transmission belt (22) to drive the driving shaft (6) to rotate, the side wall of the drainage well (3) is obliquely downwards provided with a drainage plate (24) which guides rainwater onto the wheel body (18) so as to drive the wheel body (18) to rotate towards one side;

the number of the carrier rollers (7) is three, and the three carrier rollers (7) are uniformly arranged around the axis of the driving shaft (6) at intervals; the drive plate (9) is of a hollow cylindrical structure, the drive plate (9) comprises a circular ring (26) and disks (27) fixed on two sides of the circular ring (26), an internal gear (28) is arranged on the inner side wall of the circular ring (26) in a surrounding mode, a first gear (30) meshed with the internal gear (28) is connected between the two disks (27) in a rotating mode, a plurality of second gears (31) are evenly arranged on the outer peripheral side of the carrier roller (7) in an axial direction at intervals, the number of the second gears (31) is the same as that of the carrier roller (7), and the second gears (31) are meshed with the first gear (30); through holes (32) are formed in the middle of the two discs (27), and the inner walls of the through holes (32) are rotatably connected with the carrier roller (7) through bearings.

2. A road work drainage structure as claimed in claim 1, wherein: annular groove (10) have been seted up on bearing roller (7) are located the periphery side between two driver plates (9) at both ends, the cover is equipped with roller bearing (11) in annular groove (10), roller bearing (11) external diameter is less than the external diameter of bearing roller (7), the outer lane fixed connection of the one end of interior pole (82) and roller bearing (11).

3. A road work drainage structure as claimed in claim 1, wherein: the elastic part is a first spring (12) arranged in the outer sleeve (81), one end of the first spring (12) is abutted to one end, close to the driving shaft (6), in the outer sleeve (81), and the other end of the first spring is abutted to the inner rod (82).

4. A road work drainage structure as claimed in claim 1, wherein: the drainage plates (24) are arranged in two numbers, and the two drainage plates (24) are obliquely arranged on two opposite side walls of the drainage well (3) respectively.

5. A road work drainage arrangement as claimed in claim 3, wherein: and a concave containing groove (15) is arranged on one side of the wellhead edge of the drainage well (3) close to the sidewalk (2).

6. A road work drainage arrangement as claimed in claim 3, wherein: a plurality of object placing grooves (33) are circumferentially and uniformly distributed on the outer peripheral side of the driving plate (9) at intervals, an arc-shaped shifting piece (34) is rotatably connected in each object placing groove (33), a second spring (13) for driving the arc-shaped shifting piece (34) to rotate towards the outside of each object placing groove (33) is arranged in each object placing groove (33), one end of each second spring (13) is fixed to the bottom of each object placing groove (33), and the other end of each second spring is fixed to the end portion, close to one side of the bottom of each object placing groove (33), of each arc-shaped shifting piece (34).

7. A construction method for the drainage structure of road works of claim 1, characterized in that: the method comprises the following steps:

the first step is as follows: preparing construction materials, customizing components required for installation in the drainage well (3);

the second step is that: the drainage well (3) is sequentially provided with the waterwheel (16), the drainage plate (24) and the driving shaft (6) from bottom to top, the two ends of the wheel shaft (19) are connected with the two ends of the driving shaft (6) through the transmission belt (22) so as to realize the transmission between the driving shaft (6) and the waterwheel (16), and finally, the rainwater grate (4) is arranged at the well mouth of the drainage well (3).