Green urban pavement drainage structure and construction method thereof

Abstract

The present invention relates to the technical field of pavement construction, and more particularly to a green urban pavement drainage structure and a construction method thereof. The structure is characterized by comprising a road body and a drainage pipe disposed within the road body, wherein the road body is provided with a drainage well, a drainage seat is provided at the wellhead of the drainage well, a boss is provided at the upper rear end of the drainage seat, a drainage cavity is provided within the drainage seat, a sealing plate is installed at the front end opening of the boss, a drainage grille is provided at the top opening of the drainage seat, a first filter plate is provided at the upper end of the drainage grille, a water inlet is provided on the sealing plate, a water storage lifting mechanism is provided on one side of the drainage grille within the drainage cavity, the first filter plate is hingedly connected to the drainage seat at one end away from the boss, a lifting mechanism is provided within the drainage cavity for lifting the other end of the first filter plate upward, and a connecting rod transmission mechanism is provided between the water storage lifting mechanism and the lifting mechanism. The overall structure of the present invention is practical and reliable, facilitates the rapid drainage of rainwater from the road surface, avoids large amounts of water accumulation on the road surface, and facilitates people's travel on rainy days.

Description

Technical Field

[0001] The present invention relates to the technical field of pavement construction, and in particular to a green urban pavement drainage structure and a construction method thereof. Background Art

[0002] A green city refers to urban construction that emphasizes ecological balance and nature protection while also focusing on human health and cultural development. With the development of urbanization, more and more roads are being built. In order to prevent rainwater from accumulating on the road surface and facilitate people's travel on rainy days, drainage structures connected to the municipal drainage system are usually set up on both sides of the road. Existing drainage structures usually include drainage wells with drainage grates installed at the openings of the drainage wells. Therefore, on rainy days, accumulated water on the road surface converges to the drainage grates and is discharged into the municipal drainage system through drainage pipes. On weekdays, some fallen leaves and domestic garbage on the road surface easily fall through the drainage grates into the drainage pipes and form accumulations. These garbage are difficult to remove during the daily cleaning work of sanitation vehicles or sanitation workers, which easily causes blockage in the drainage pipes and reduces drainage efficiency. In addition, when it rains, some leaves, domestic garbage and other debris will also flow into the drainage grates with the water flow and block the drainage grates, which will further make it difficult for rainwater on the road surface to drain quickly, and ultimately cause a large amount of water to accumulate on the road surface, which will bring inconvenience to people's travel on rainy days. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a green urban road drainage structure and its construction method, which has a practical and reliable overall structure, is conducive to the rapid discharge of rainwater on the road surface, avoids large amounts of water accumulation on the road surface, and facilitates people's travel on rainy days.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a green urban pavement drainage structure, including a road main body and a drainage pipe arranged in the road main body, a plurality of drainage wells arranged at intervals and connected to the drainage pipe are provided on the road main body, a drainage seat is fixedly provided at the wellhead of the drainage well, the upper end of the rear side of the drainage seat protrudes upward and forms a boss, a drainage cavity is provided in the drainage seat that runs through the upper and lower ends and is open to the front side of the boss, a sealing plate is installed at the front end opening of the boss, a detachable drainage grille is provided at the top opening of the drainage seat, a first filter plate is provided at the upper end of the drainage grille, a water inlet higher than the first filter plate is provided on the sealing plate, a water storage lifting mechanism connected to the water inlet is provided on one side of the drainage grille in the drainage cavity, the first filter plate is hinged to the drainage seat at the end away from the boss, a lifting mechanism for lifting the other end of the first filter plate upward is provided in the drainage cavity, and a connecting rod transmission mechanism is provided between the water storage lifting mechanism and the lifting mechanism.

[0005] Furthermore, the water storage lifting mechanism includes a water tank, a limit block and an elastic member. A water guide plate is fixedly provided on the inner surface of the sealing plate below the water inlet. The water tank is arranged in the drainage cavity and is located below the water guide plate and is connected to the drainage seat for up and down sliding through a sliding assembly. An upwardly open water storage cavity is provided in the water tank, and at least one leakage hole is provided at the bottom of the water storage cavity. The limit block is fixed on the inner wall of the drainage seat and is located above the water tank. The elastic member is used to always apply an upward elastic force to the water tank.

[0006] Furthermore, there are two sliding components and they are respectively arranged on the left and right sides of the water tank. The sliding components include a sliding rod and a sliding sleeve. The sliding rod is fixedly installed in the drain seat, and the sliding sleeve is fixedly installed on the water tank. The sliding sleeve is arranged on the sliding rod and the two are slidably matched.

[0007] Furthermore, the elastic member is a compression spring, which is sleeved on the slide rod, the upper end of the compression spring abuts against the water tank, and the lower end of the compression spring abuts against the fixed plate, which is fixed on the inner wall of the drain seat.

[0008] Furthermore, there are two connecting rod transmission mechanisms and lifting mechanisms and they are symmetrically arranged on the left and right sides of the drain seat respectively. The lifting mechanism includes a push rod and a guide block. The guide block is fixedly installed on the inner wall of the drain seat. A guide hole is provided in the guide block that passes through the upper and lower ends and is adapted to the push rod. The push rod is passed through the guide hole and slides with the guide block. A through hole is provided on the drainage grille. The top end of the push rod extends upward through the through hole and abuts against the lower end surface of the first filter plate.

[0009] Furthermore, the connecting rod transmission mechanism includes a first connecting rod, a rotating rod and a second connecting rod. The rotating rod can be rotatably installed on the inner wall of the drain seat. One end of the first connecting rod is hinged to the bottom of the water tank, the other end of the first connecting rod is hinged to one end of the rotating rod, the other end of the rotating rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the bottom end of the top rod.

[0010] Furthermore, the drain seat is provided with a cleaning mechanism for cleaning the upper end surface of the first filter plate. The cleaning mechanism includes a slide, a scraper, a ball linear guide pair and a counterweight plate. There are two ball linear guides and they are respectively arranged on the left and right sides of the upper end surface of the first filter plate. The slide is slidably connected to the first filter plate through the ball linear guide pair. The scraper is fixed at the lower end of the slide and abuts against the upper end surface of the first filter plate. There are multiple counterweight plates and they are installed on the slide through fasteners.

[0011] Furthermore, a detachable placement plate is provided between the drainage grille and the first filter plate, and a plurality of filter boxes corresponding to the drainage square holes on the drainage grille are fixed at the lower end of the placement plate. The filter boxes are embedded in the corresponding drainage square holes. A filter cavity open upward is provided in the filter box, and water outlets are provided on the upper parts of the front and rear sides of the filter box. A plurality of spaced-apart grate bars are fixed on the filter box at the water outlet.

[0012] Furthermore, a number of gravels are laid on the bottom of the filter chamber, and guide plates are fixed on both the front and rear sides of the upper opening of the filter box, which are tilted downward and inward, and the grate bars are tilted inward and upward.

[0013] The construction method of the green urban pavement drainage structure comprises the following steps:

[0014] Step 1: Excavate the main road from top to bottom, dig a trench horizontally, and lay the drainage pipe in the trench;

[0015] Step 2: Build a drainage well in the trench at the water inlet of the drainage pipe;

[0016] Step 3: Place the drain seat at the wellhead of the drainage well and pour concrete around the drain seat to fix it. The drain seat is pre-installed with a water storage lifting mechanism, a jacking mechanism and a connecting rod transmission mechanism. The top opening of the drain seat is pre-installed with a first filter plate, and a cleaning mechanism is pre-installed on the first filter plate.

[0017] Step 4: Fix the sealing plate at the front opening of the boss on the upper end of the drain seat with bolts;

[0018] Step 5: Turn over the first filter plate and open the top opening of the drain seat. Then, place the drain grille on the top opening of the drain seat and pass the top rod of the lifting mechanism through the through hole on the drain grille.

[0019] Step 6: Place the placement plate on the upper end of the drainage grille and embed the filter box of the placement plate into the corresponding drainage square hole on the drainage grille. The bottom of the filter box is pre-paved with gravel. Then, turn over the first filter plate and cover the placement plate. At this time, the top end of the push rod is in contact with the lower end surface of the first filter plate.

[0020] Step 7: Move the slide of the cleaning mechanism on the first filter plate to the side close to the boss;

[0021] Step 8: Backfill the excavated soil into the trench and cover the drainage pipe.

[0022] From the above description, it can be seen that the green urban pavement drainage structure provided by the present invention is practical and reliable in its overall structure, and has the following beneficial effects: by arranging a first filter plate at the upper end of the drainage grille, while ensuring that rainwater can be discharged smoothly at a certain speed when it rains, it can make it less likely for leaves, domestic garbage and other debris to fall into the drainage pipe through the drainage grille and form accumulation on weekdays, and it is not easy to cause blockage in the drainage pipe, so as to ensure the drainage efficiency of the drainage pipe. At the same time, leaves, domestic garbage and other debris can be accumulated at the upper end of the first filter plate, which is convenient for sanitation vehicles or sanitation workers to clean up in time during their daily cleaning work, and when it rains, when some leaves, domestic garbage and other debris are discharged smoothly at a certain speed when it rains, it can make the rainwater discharge smoothly at a certain speed when it rains. When the debris is collected by the water flow to the first filter plate and blocks the first filter plate, the rainwater on the road surface will gradually increase. When the depth of the accumulated rainwater exceeds the height of the water inlet on the sealing plate, the rainwater will flow in from the water inlet and drive the water storage lifting mechanism to move. At the same time, through the linkage of the connecting rod transmission mechanism, the lifting mechanism will be driven to move and lift the first filter plate and the debris accumulated on the first filter plate upward, so that the first filter plate no longer covers the drainage grille. At this time, the rainwater will be discharged directly from the drainage grille into the drainage pipe, which is conducive to the rapid discharge of rainwater on the road surface, avoiding a large amount of water accumulation on the road surface and facilitating people's travel on rainy days. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of the green urban pavement drainage structure of the present invention.

[0024] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0025] Figure 3 This is a partial exploded schematic diagram of the three-dimensional structure of the green urban pavement drainage structure of the present invention.

[0026] Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0027] Figure 5 for Figure 3 A partial enlarged schematic diagram of point C in the middle.

[0028] Figure 6 for Figure 3 A local enlarged schematic diagram of point D in the middle.

[0029] Figure 7 This is a schematic diagram of the state when the first filter plate of the green urban pavement drainage structure of the present invention is not lifted up.

[0030] Figure 8 This is a schematic diagram of the state when the first filter plate of the green urban pavement drainage structure of the present invention is lifted up.

[0031] In the figure: 11- road body; 111- drainage well; 12- drainage pipe; 2- drainage seat; 21- boss; 22- drainage cavity; 23- fixed plate; 3- sealing plate; 31- water inlet; 32- water guide plate; 33- drainage outlet; 331- second filter plate; 41- drainage grille; 411- through hole; 412- drainage square hole; 42- first filter plate; 43- placement plate; 431- filter box; 432- water outlet; 433- grate bar; 434- guide plate; 435- filter Cavity; 5-water storage lifting mechanism; 51-water storage tank; 511-water storage chamber; 512-leakage hole; 52-limiting block; 53-elastic member; 54-sliding assembly; 541-slide rod; 542-slide sleeve; 6-lifting mechanism; 61-lifting rod; 62-guide block; 7-connecting rod transmission mechanism; 71-first connecting rod; 72-rotating rod; 73-second connecting rod; 8-cleaning mechanism; 81-slide seat; 82-scraper; 83-ball linear guide pair; 84-counterweight plate; 85-fastener. DETAILED DESCRIPTION

[0032] The present invention is further described below through specific embodiments.

[0033] like Figures 1 to 8 As shown, the green urban pavement drainage structure of the present invention includes a road body 11 and a drainage pipe 12 arranged in the road body 11, and the road body 11 is provided with a plurality of drainage wells 111 arranged at intervals and communicating with the drainage pipe 12. A drainage seat 2 is fixed at the wellhead of the drainage well 111, and the upper end of the rear side of the drainage seat 2 is upwardly protruded and formed with a boss 21. A drainage cavity 22 is provided in the drainage seat 2 that runs through the upper and lower ends and is open to the front side of the boss 21. A sealing plate 3 is installed at the front end opening of the boss 21, and a sealing plate 3 is installed at the top opening of the drainage seat 2. There is a detachable drainage grille 41, a first filter plate 42 is provided at the upper end of the drainage grille 41, a water inlet 31 higher than the first filter plate 42 is provided on the sealing plate 3, and a water storage lifting mechanism 5 communicating with the water inlet 31 is provided on one side of the drainage grille 41 in the drainage cavity 22. The first filter plate 42 is hinged to the drainage seat 2 at one end away from the boss 21, and a lifting mechanism 6 for lifting the other end of the first filter plate 42 upwards is provided in the drainage cavity 22, and a connecting rod transmission mechanism 7 is provided between the water storage lifting mechanism 5 and the lifting mechanism 6.

[0034] Correspondingly, a plurality of first filter holes are evenly distributed on the first filter plate 42, and the aperture of the first filter holes is set to be relatively small, and is much smaller than the aperture of the drainage square holes 412 on the drainage grille 41. By arranging the first filter plate 42 at the upper end of the drainage grille 41, while ensuring that rainwater can be discharged smoothly at a certain speed when it rains, it is less likely that debris such as leaves and domestic garbage will pass through the drainage grille 41 and fall into the drainage pipe 12 to form accumulation on weekdays, and it is not easy to cause blockage in the drainage pipe 12, so as to ensure the drainage efficiency of the drainage pipe 12. At the same time, debris such as leaves and domestic garbage can accumulate at the upper end of the first filter plate 42, which is convenient for sanitation vehicles or sanitation workers to clean up in time during normal cleaning work, and when it rains, when some leaves and domestic garbage are discharged smoothly, the drainage pipe 12 will not be blocked. When garbage and other debris are collected at the first filter plate 42 with the water flow and block the first filter plate 42, the rainwater on the road surface will gradually increase. When the depth of rainwater accumulation exceeds the height of the water inlet 31 on the sealing plate 3, rainwater will flow in from the water inlet 31 and drive the water storage lifting mechanism 5 to move. At the same time, through the linkage of the connecting rod transmission mechanism 7, the lifting mechanism 6 will be driven to move and lift the first filter plate 42 and the debris accumulated on the first filter plate 42 upward, so that the first filter plate 42 no longer covers the drainage grille 41. At this time, the rainwater will be directly discharged from the drainage grille 41 into the drainage pipe 12. As a result, it is beneficial for the rainwater on the road surface to be quickly discharged again, avoiding a large amount of water accumulation on the road surface and facilitating people's travel on rainy days.

[0035] Preferably, the water inlet 31 is in a strip shape.

[0036] like Figure 2 、 Figure 3 and Figure 5As shown, specifically, the water storage lifting mechanism 5 includes a water tank 51, a limit block 52 and an elastic member 53. The inner surface of the sealing plate 3 is fixed with a water guide plate 32 below the water inlet 31. The water tank 51 is arranged in the drainage cavity 22 and is located below the water guide plate 32 and is connected to the drainage seat 2 for sliding up and down movement through a sliding component 54. The water tank 51 is provided with an upwardly open water storage cavity 511, and the bottom of the water storage cavity 511 is provided with at least one water leakage hole 512. The limit block 5 2 is fixed on the inner wall of the drain seat 2 and is located above the water tank 51. The elastic member 53 is used to always exert an upward elastic force on the water tank 51. By adopting this structure, when rainwater flows into the water inlet 31 and is guided into the water tank 51 through the water guide plate 32 and stored in the water storage cavity 511, the overall weight of the water tank 51 gradually increases, and overcomes the elastic force exerted by the elastic member 53, so that the water tank 51 is gradually increased. The water tank 51 slowly moves downward. In this way, the lifting mechanism 6 will be driven to operate through the linkage of the connecting rod transmission mechanism 7, thereby lifting the first filter plate 42 upward. In addition, when the amount of rainwater on the road gradually decreases and no longer flows into the water inlet 31, the water in the water storage chamber 511 can gradually flow out through the setting of the leakage hole 512, thereby gradually reducing the overall weight of the water tank 51. At the same time, under the action of the upward elastic force exerted by the elastic member 53, the water tank 51 can slowly move upward. In this way, the linkage of the connecting rod transmission mechanism 7 will cause the lifting mechanism 6 to no longer lift the first filter plate 42 upward. At this time, the first filter plate 42 will slowly flip downward and reset under the action of its own weight. In addition, the setting of the limit block 52 facilitates the corresponding limiting effect on the upward movement of the water tank 51, and at the same time, cooperates with the setting of the elastic member 53 to keep the water tank 51 in a stable position.

[0037] Preferably, the number of the water leakage holes 512 is 2-3.

[0038] like Figure 2 and Figure 6 As shown, in addition, the sealing plate 3 is provided with a plurality of drainage outlets 33 located above the water inlet 31 and spaced apart along its length direction, and a second filter plate 331 is installed in the drainage outlet 33, and a plurality of second filter holes are evenly distributed on the second filter plate 331. By adopting this structure, when rainwater on the road surface accumulates rapidly and in large quantities and the depth of the accumulated water exceeds the height of the drainage outlet 33, the setting of the drainage outlet 33 is also conducive to further improving the overall drainage volume. At the same time, the setting of the second filter plate 331 can play a corresponding filtering role on debris mixed in the rainwater, effectively preventing debris from entering the drainage pipe 12 with the rainwater.

[0039] like Figure 5 As shown, preferably, there are two sliding components 54 and they are respectively arranged on the left and right sides of the water tank 51. The sliding component 54 includes a sliding rod 541 and a sliding sleeve 542. The sliding rod 541 is fixedly installed in the drain seat 2, and the sliding sleeve 542 is fixedly installed on the water tank 51. The sliding sleeve 542 is sleeved on the sliding rod 541 and the two are slidably matched. By adopting this structure, it can play a good guiding role in the up and down lifting of the water tank 51, and at the same time effectively ensure the stability and smoothness of the water tank 51 when it is lifted up and down.

[0040] like Figure 5 As shown, preferably, the elastic member 53 is a compression spring, which is sleeved on the slide rod 541, the upper end of the compression spring abuts against the water tank 51, and the lower end of the compression spring abuts against the fixed plate 23, and the fixed plate 23 is fixed on the inner wall of the drain seat 2, so that an upward elastic force can always be applied to the water tank 51.

[0041] Preferably, the connecting rod transmission mechanism 7 and the lifting mechanism 6 are both two and are symmetrically arranged on the left and right sides of the drain seat 2, thereby facilitating a better lifting of the first filter plate 42.

[0042] like Figure 2 and Figure 5 As shown, specifically, the lifting mechanism 6 includes a lift rod 61 and a guide block 62, and the guide block 62 is fixedly mounted on the inner wall of the drain seat 2. A guide hole is provided in the guide block 62 that passes through the upper and lower ends and is adapted to the lift rod 61. The lift rod 61 is passed through the guide hole and slidably cooperates with the guide block 62. A through hole 411 is provided on the drainage grille 41, and the top end of the lift rod 61 extends upward through the through hole 411 and abuts against the lower end surface of the first filter plate 42. Through the setting of the guide block 62, the up and down movement of the lift rod 61 can be well guided to ensure that the lift rod 61 moves up and down smoothly and can stably lift the first filter plate 42 upward.

[0043] like Figure 2 and Figure 5As shown, specifically, the connecting rod transmission mechanism 7 includes a first connecting rod 71, a rotating rod 72 and a second connecting rod 73. The rotating rod 72 is rotatably installed on the inner wall of the drain seat 2. One end of the first connecting rod 71 is hinged to the bottom of the water tank 51, and the other end of the first connecting rod 71 is hinged to one end of the rotating rod 72. The other end of the rotating rod 72 is hinged to one end of the second connecting rod 73, and the other end of the second connecting rod 73 is hinged to the bottom end of the top rod 61. By adopting this structure, when the water tank 51 moves downward or upward, it can be rotated by the first connecting rod 7 1, thereby driving the rotating rod 72 to rotate accordingly, and through the linkage of the second connecting rod 73, it is convenient to drive the push rod 61 to move upward or downward, so as to facilitate the upward lifting of the first filter plate 42, or to release the first filter plate 42 and allow the first filter plate 42 to flip downward and reset due to its own weight. In addition, the rotation point of the rotating rod 72 is close to the side of the first connecting rod 71, which is conducive to making the up and down movement distance of the push rod 61 greater than the up and down movement distance of the water tank 51, thereby facilitating the other end of the first filter plate 42 to be pushed upward a little higher.

[0044] like Figure 2 、 Figure 3 and Figure 4As shown, in addition, the drain seat 2 is provided with a cleaning mechanism 8 for cleaning the upper end surface of the first filter plate 42. Specifically, the cleaning mechanism 8 includes a slide 81, a scraper 82, a ball linear guide pair 83 and a counterweight plate 84. The ball linear guide is two and is respectively arranged on the left and right sides of the upper end surface of the first filter plate 42. The slide 81 is slidably connected to the first filter plate 42 through the ball linear guide pair 83. The scraper 82 is fixedly arranged at the lower end of the slide 81 and abuts against the upper end surface of the first filter plate 42. The counterweight plate 84 is multiple and is installed on the slide 81 through fasteners 85. In the initial state, the slide 81 is located on the side of the upper end of the first filter plate 42 close to the boss 21. By adopting this structure, when the end of the first filter plate 42 close to the boss 21 is pushed upward by the push rod 61, the first filter plate 42 can be in a tilted state. At this time, the slide 81 and the counterweight plate The weight plate 84 will slide down toward the end of the first filter plate 42 away from the boss 21 due to its own weight, and drive the scraper 82 to scrape along the upper end surface of the first filter plate 42, thereby effectively scraping off the debris accumulated on the upper end surface of the first filter plate 42 and playing a good cleaning role, effectively ensuring the smooth flow of the first filter holes on the first filter plate 42, so that when the amount of rainwater accumulated on the road surface is reduced and the first filter plate 42 is flipped down and reset, it can also well maintain the smooth drainage of the first filter plate 42, thereby facilitating the rainwater on the road surface to continue to be discharged through the first filter plate 42. In addition, the arrangement of the ball linear guide pair 83 can play a good guiding role in the sliding of the slide 81, so that the scraper 82 can better scrape off the debris on the upper end surface of the first filter plate 42. The arrangement of the counterweight plate 84 can further increase the overall weight of the slide 81, thereby better driving the scraper 82 to slide downward.

[0045] Specifically, the ball linear guide pair 83 includes a guide rail and a slider. The guide rail is fixedly mounted on the first filter plate 42, and the slider is fixedly mounted on the slide 81. The slider is adapted to the guide rail and the two are slidably fitted together. Blocks are also fixedly provided at both ends of the guide rail on the first filter plate 42.

[0046] like Figure 2 and Figure 3As shown, in addition, a detachable placement plate 43 is provided between the drainage grille 41 and the first filter plate 42, and a plurality of filter boxes 431 corresponding to the drainage square holes 412 on the drainage grille 41 are fixed at the lower end of the placement plate 43. The filter boxes 431 are embedded in the corresponding drainage square holes 412, and a filter cavity 435 open upward is provided in the filter box 431. Water outlets 432 are provided on the upper parts of the front and rear sides of the filter box 431. A plurality of spaced-apart grate bars 433 are fixed on the filter box 431 at the water outlet 432. When the first filter plate 42 is After being lifted up, when rainwater is discharged into the drainage pipe 12 through the drainage grille 41, the grate bars 433 can have a certain filtering effect on the debris mixed in the inflowing rainwater, and make the debris remain in the filter box 431, thereby preventing the debris from being discharged into the drainage pipe 12 with the rainwater to a certain extent. At the same time, it is also convenient to remove the placement plate 43 after the rain stops, and clean up the debris in the filter box 431 in time. In addition, when the shape of the placement plate 43 is adapted to the shape of the drainage grille 41, the placement plate 43 is also provided with a slot for the push rod 61 to pass through.

[0047] like Figure 2 As shown, in addition, a number of gravels are laid at the bottom of the filter chamber 435. In this way, when the mud and sand flow into the filter chamber 435 together with the rainwater, it is beneficial for the mud and sand to fill the gaps between the gravels, thereby helping to reduce the amount of mud and sand discharged into the drainage pipe 12. The front and rear sides of the upper end opening of the filter box 431 are fixed with guide plates 434 that are downwardly and inwardly inclined. The grate bars 433 are inclined inwardly and upwardly, which is beneficial for the debris flowing in with the rainwater to fall into the filter box 431 better and make the debris more stable in the filter box 431 after being filtered.

[0048] The construction method of the green urban pavement drainage structure comprises the following steps:

[0049] Step 1: Excavate the road body 11 from top to bottom, dig a trench horizontally, and lay the drainage pipe 12 in the trench;

[0050] Step 2: Build a drainage well 111 in the trench at the water inlet 31 of the drainage pipe 12;

[0051] Step 3: Place the drain seat 2 at the wellhead of the drainage well 111 and pour concrete around the drain seat 2 to secure it. The drain seat 2 is pre-installed with a water storage lifting mechanism 5, a jacking mechanism 6, and a connecting rod transmission mechanism 7. The top opening of the drain seat 2 is pre-installed with a first filter plate 42, and a cleaning mechanism 8 is pre-installed on the first filter plate 42.

[0052] Step 4: Fix the sealing plate 3 at the front end opening of the upper boss 21 of the drain seat 2 with bolts;

[0053] Step 5: Flip the first filter plate 42 and open the top opening of the drain seat 2. Then, place the drain grille 41 on the top opening of the drain seat 2 and pass the top rod 61 of the lifting mechanism 6 through the through hole 411 on the drain grille 41.

[0054] Step 6: Place the placement plate 43 on the upper end of the drainage grille 41 and embed the filter box 431 of the placement plate 43 into the corresponding drainage square hole 412 on the drainage grille 41. The bottom of the filter box 431 is pre-paved with gravel. Then, turn over the first filter plate 42 and cover the placement plate 43. At this time, the top end of the push rod 61 abuts against the lower end surface of the first filter plate 42.

[0055] Step 7: Move the slide 81 of the cleaning mechanism 8 on the first filter plate 42 to a side close to the boss 21;

[0056] Step 8: Backfill the excavated soil into the trench and cover the drainage pipe 12.

[0057] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A green urban pavement drainage structure, comprising a road body and a drainage pipe disposed within the road body, wherein the road body is provided with a plurality of drainage wells spaced apart and communicating with the drainage pipe, and characterized by: A drainage seat is fixedly provided at the wellhead of the drainage well, and the upper end of the rear side of the drainage seat protrudes upward to form a boss, and a drainage cavity is provided in the drainage seat that runs through the upper and lower ends and is open to the front side of the boss, and a sealing plate is installed at the front end opening of the boss, and a detachable drainage grille is provided at the top opening of the drainage seat, and a first filter plate is provided at the upper end of the drainage grille, and a water inlet higher than the first filter plate is provided on the sealing plate, and a water storage lifting mechanism is provided on one side of the drainage grille in the drainage cavity that is communicated with the water inlet, and the first filter plate is connected to the water inlet at the end away from the boss. The drain seat is hinged, and a lifting mechanism for lifting the other end of the first filter plate upward is provided in the drainage cavity. A connecting rod transmission mechanism is provided between the water storage lifting mechanism and the lifting mechanism. The drain seat is provided with a cleaning mechanism for cleaning the upper end surface of the first filter plate. The cleaning mechanism includes a slide seat, a scraper, a ball linear guide pair and a counterweight plate. There are two ball linear guides and they are respectively provided on the left and right sides of the upper end surface of the first filter plate. The slide seat is slidably connected to the first filter plate through the ball linear guide pair, and the scraper is fixedly provided at the lower end of the slide seat. The water tank is provided with a water storage chamber, a water storage chamber, a water storage chamber and a water storage chamber bottom. The water storage chamber is provided with a plurality of counterweight plates and is mounted on the slide seat through fasteners. The water storage lifting mechanism includes a water storage tank, a limit block and an elastic member. A water guide plate is fixedly provided on the inner surface of the sealing plate below the water inlet. The water storage tank is provided in the drainage chamber and is located below the water guide plate and is connected to the drainage seat for sliding up and down movement through a sliding assembly. A water storage chamber open upward is provided in the water storage tank, and at least one water leakage hole is provided at the bottom of the water storage chamber. The limit block is fixedly provided on the inner wall of the drainage seat and is located above the water storage tank. The elastic member It is used to always maintain an upward elastic force on the water tank. The connecting rod transmission mechanism and the lifting mechanism are both two and are symmetrically arranged on the left and right sides of the drain seat respectively. The lifting mechanism includes a push rod and a guide block. The guide block is fixedly installed on the inner wall of the drain seat. A guide hole is provided in the guide block that passes through the upper and lower ends and is adapted to the push rod. The push rod is inserted into the guide hole and slidably cooperates with the guide block. A through hole is provided on the drainage grille. The top end of the push rod extends upward through the through hole and abuts against the lower end surface of the first filter plate.

2. The green urban pavement drainage structure according to claim 1 is characterized by: There are two sliding components, which are respectively arranged on the left and right sides of the water tank. The sliding components include a sliding rod and a sliding sleeve. The sliding rod is fixedly installed in the drain seat, and the sliding sleeve is fixedly installed on the water tank. The sliding sleeve is arranged on the sliding rod and the two are slidably matched.

3. The green urban pavement drainage structure according to claim 2 is characterized by: The elastic member is a compression spring, which is sleeved on the slide rod. The upper end of the compression spring abuts against the water tank, and the lower end of the compression spring abuts against a fixed plate, which is fixed on the inner wall of the drain seat.

4. The green urban pavement drainage structure according to claim 3 is characterized by: The connecting rod transmission mechanism includes a first connecting rod, a rotating rod and a second connecting rod. The rotating rod is rotatably installed on the inner wall of the drain seat. One end of the first connecting rod is hinged to the bottom of the water tank, and the other end of the first connecting rod is hinged to one end of the rotating rod. The other end of the rotating rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the bottom end of the top rod.

5. The green urban pavement drainage structure according to claim 4 is characterized in that: A detachable placement plate is provided between the drainage grille and the first filter plate, and a plurality of filter boxes corresponding to the drainage square holes on the drainage grille are fixed at the lower end of the placement plate. The filter boxes are embedded in the corresponding drainage square holes, and an upwardly open filter cavity is provided in the filter box. Water outlets are provided on the upper parts of the front and rear sides of the filter box, and a plurality of spaced-apart grate bars are fixed on the filter box at the water outlets.

6. The green urban pavement drainage structure according to claim 5, characterized in that: A number of crushed stones are laid on the bottom of the filter cavity, and guide plates are fixedly provided on both the front and rear sides of the upper opening of the filter box, which are tilted downward and inward, and the grate bars are tilted inward and upward.

7. The construction method of the green urban pavement drainage structure is characterized by: The construction of the green urban pavement drainage structure according to claim 6 comprises the following steps: Step 1: Excavate the main road from top to bottom, dig a trench horizontally, and lay the drainage pipe in the trench; Step 2: Build a drainage well in the trench at the water inlet of the drainage pipe; Step 3: Place the drain seat at the wellhead of the drainage well and pour concrete around the drain seat to fix it. The drain seat is pre-installed with a water storage lifting mechanism, a jacking mechanism and a connecting rod transmission mechanism. The top opening of the drain seat is pre-installed with a first filter plate, and a cleaning mechanism is pre-installed on the first filter plate. Step 4: Fix the sealing plate at the front opening of the boss on the upper end of the drain seat with bolts; Step 5: Turn over the first filter plate and open the top opening of the drain seat. Then, place the drain grille on the top opening of the drain seat and pass the top rod of the lifting mechanism through the through hole on the drain grille. Step 6: Place the placement plate on the upper end of the drainage grille and embed the filter box of the placement plate into the corresponding drainage square hole on the drainage grille. The bottom of the filter box is pre-paved with gravel. Then, turn over the first filter plate and cover the placement plate. At this time, the top end of the push rod is in contact with the lower end surface of the first filter plate. Step 7: Move the slide of the cleaning mechanism on the first filter plate to the side close to the boss; Step 8: Backfill the excavated soil into the trench and cover the drainage pipe.

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