Water-permeable asphalt road drainage device

Abstract

The present application relates to road drainage equipment technical field, specifically a kind of permeable asphalt road drainage device, comprising: permeable asphalt road body;Drainage mechanism;The drainage mechanism is set to the top of permeable asphalt road body;Wherein, the drainage mechanism includes embeddedly set in the drainage pipeline of the top of permeable asphalt road body, the top of permeable asphalt road body is provided with the round frame fixedly connected with drainage pipeline, the top of the round frame is provided with well lid;The anti-blocking component in the drainage mechanism can be suspended plate automatic rising when water is stored above well lid, drive baffle automatic rotation, lift up impurities, impurities can also be from inlet pipe into drainage pipeline and be treated, avoid impurities completely block inlet pipe using the rotation of baffle, without manual operation, when water accumulation can be automatically adjusted, avoid the situation that drainage pipeline cannot normally drain due to blockage occurs.

Description

Technical Field

[0001] This invention relates to the field of road drainage equipment technology, and in particular to a permeable asphalt road drainage device. Background Technology

[0002] Permeable asphalt pavement is a specially designed road surface with excellent drainage performance, allowing rainwater to quickly infiltrate into the groundwater layer. Small amounts of water on the road surface are discharged through its own seepage, while water remaining on the road surface is discharged through drainage channels.

[0003] The Chinese patent "A Permeable Asphalt Road Drainage Device" (CN214940866U) describes a drainage system where rainwater causes a buoyancy mechanism to rise and press against the underside of the manhole cover. This causes the elastic support mechanism to deform, and the filter disc to sink below the drainage channel. Rainwater then flows through the filter holes on the filter disc and the gap between the filter disc's sidewall and the lower cavity wall, discharging into the drainage channel. While this application utilizes buoyancy to prevent filter disc blockage and ensures normal drainage, when there is a large amount of water, impurities on the road surface and the water will reach the top of the drainage channel. The water above the channel can easily form a vortex, allowing for drainage, but impurities tend to accumulate in the drainage channel, causing blockage and creating a void below the channel, thus affecting the device's normal drainage.

[0004] Therefore, a permeable asphalt road drainage device is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a permeable asphalt road drainage device to solve the above-mentioned problems, thereby improving the problem that vortices are easily formed above the drainage channel, and impurities are easily blocked by the water, resulting in a gap area below the drainage channel, which affects the normal drainage of the device.

[0006] The present invention achieves the above-mentioned objective through the following technical solution: a permeable asphalt road drainage device, comprising: a permeable asphalt road body; a drainage mechanism; the drainage mechanism being disposed at the top of the permeable asphalt road body; wherein, the drainage mechanism includes a drainage pipe embedded in the top of the permeable asphalt road body, a circular frame fixedly connected to the drainage pipe being disposed at the top of the permeable asphalt road body, a manhole cover being disposed at the top of the circular frame, an anti-clogging component being disposed at the bottom of the manhole cover, a filter component being disposed on the inner wall of the drainage pipe, and uniformly distributed drainage holes being opened on the surface of the drainage pipe, with blocking blocks being disposed on the inner wall of the drainage holes.

[0007] Preferably, the anti-clogging component includes four second mounting frames embedded in the top of the manhole cover. A limiting rod is fixedly connected to the inner top wall of each second mounting frame. A suspension plate is slidably connected to the surface of the limiting rod. A rack is fixedly connected to one side of the suspension plate. Four water inlet pipes are provided at the front end of the manhole cover. A baffle is rotatably connected to the inner wall of each water inlet pipe. One end of the baffle passes through the water inlet pipe, the manhole cover, and the second mounting frames in sequence and is fixedly connected to a gear. The gear and rack mesh with each other. Multiple round holes are provided on the surface of the second mounting frame, and a drain outlet is provided at the bottom end of the second mounting frame. When water accumulates above the manhole cover, the anti-clogging component in this drainage mechanism allows the suspension plate to automatically rise, causing the baffle to rotate automatically and lifting impurities. Impurities can also enter the drainage pipe from the water inlet pipe for treatment. The rotation of the baffle prevents impurities from completely clogging the water inlet pipe. No manual operation is required. It can automatically adjust when water accumulates, preventing the drainage pipe from failing to drain properly due to blockage.

[0008] Preferably, the anti-clogging component further includes two first connecting rods embedded in the bottom of the manhole cover, with a second connecting rod inserted into the bottom of each first connecting rod. A suspension block is provided at the bottom of the second connecting rod. Four first mounting frames corresponding to the water inlet pipe are provided at the top of the manhole cover. A cylinder is fixedly connected to the inner bottom wall of each first mounting frame. A spring is fixedly connected to one end of the inner wall of the cylinder, and a piston rod is fixedly connected to the other end of the spring. The other end of the piston rod passes through the cylinder and is fixedly connected to a first locking block. The other end of the baffle passes through... A second snap-fit ​​block is fixedly connected to the water pipe, manhole cover, and first mounting frame. The first snap-fit ​​block and the second snap-fit ​​block snap together. A three-way pipe is set between the two longitudinal cylinders. A driving airbag is set on the inner top wall of the first connecting rod. The other end of the three-way pipe is connected to the driving airbag. The suspended block can self-adjust according to the water volume of the drainage pipe. When the drainage pipe is draining normally and there is no blockage, it ensures that the baffle will not rotate. It can automatically lift up the impurities that are gathered by the water vortex during the discharge of accumulated water, ensuring the normal discharge of accumulated water by the device.

[0009] Preferably, the impurity filtering assembly includes a fixing ring fixedly connected to the inner wall of the drainage pipe, a circular ring fixedly connected to the inner edge of the fixing ring, a circular filter cylinder provided at the top of the circular ring, a placement ring fixedly connected to the inner wall of the drainage pipe, and a guide plate provided at the top of the placement ring. The circular filter cylinder in the impurity filtering assembly can filter the accumulated water entering the drainage pipe, prevent impurities from entering the road drainage system, and reduce the labor intensity of subsequent impurity cleaning.

[0010] Preferably, the impurity filtering assembly further comprises a reciprocating lead screw rotatably connected to the inner top wall of the circular filter cartridge, the top end of the reciprocating lead screw penetrates out of the circular filter cartridge, the top end of the circular filter cartridge is rotatably connected with a rotating rod, both ends of the rotating rod are fixedly connected with water-poking wheels, the top end of the reciprocating lead screw and the surface of the rotating rod are both fixedly connected with bevel gears, the two bevel gears are in meshed connection, a sliding block is arranged on the surface of the reciprocating lead screw, and a cleaning ring in contact with the inner wall of the circular filter cartridge is fixedly connected to the surface of the sliding block. The descending water flow can impact the water-poking wheels, and the rotation of the water-poking wheels can drive the reciprocating lead screw to rotate, so that the cleaning ring cleans the inner wall of the circular filter cartridge, preventing the circular filter cartridge from being blocked. This is an automatic cleaning process that does not require opening the manhole cover for manual cleaning, ensuring normal operation of the impurity filtering assembly.

[0011] Preferably, a cross bar is fixedly connected between the two floating blocks, the top end of each floating block is fixedly connected with a counterweight block, and the counterweight block is in a "loop" shape. The cross bar can connect the two floating blocks into a whole, so that the second connecting rods on both sides operate synchronously, which improves the stability of the anti-clogging assembly, and meanwhile the counterweight blocks can make the floating blocks more stable during operation.

[0012] Preferably, a pulling ring is arranged in the middle of the top end of the manhole cover, the bottom end of the pulling ring is fixedly connected with a traction rope, and the other end of the traction rope penetrates through the manhole cover and is fixedly connected with the middle of the top end of the cross bar. When the manhole cover needs to be lifted, the pulling ring and the traction rope can cooperate with each other to retract the second connecting rods into the first connecting rods, preventing the anti-clogging assembly from affecting the lifting of the manhole cover.

[0013] Preferably, the bottom end of the guide plate is fixedly connected with a storage ring, the bottom end of the storage ring is embedded with a filter screen, the surface of the storage ring is in contact with the fixing ring, the bottom end of the guide plate is bent into a funnel shape, and the top end of the guide plate is fixedly connected with two pull rings. The storage ring can collect the cleaned impurities, and accumulated water is discharged through the filter screen, ensuring the normal operation of the impurity filtering assembly. The pull rings make the storage ring more convenient to take out.

[0014] Preferably, the top end of the circular filter cartridge is fixedly connected with a protective cover, the protective cover is in a "U" shape, and both of the two bevel gears are located inside the protective cover.

[0015] Preferably, the inner top wall of the circular filter cartridge is fixedly connected with a vertical rod, the surface of the vertical rod is slidably connected with a sliding sleeve, and the sliding sleeve is fixedly connected with the sliding block.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The anti-clogging component in this drainage mechanism can automatically raise the suspension plate when water is stored above the manhole cover, causing the baffle to rotate automatically and lift up impurities. Impurities can also enter the drainage pipe from the inlet pipe for treatment. The rotation of the baffle prevents impurities from completely clogging the inlet pipe. No manual operation is required. It can automatically adjust when water is accumulated to prevent the drainage pipe from failing to drain normally due to blockage. At the same time, the suspension block can self-adjust according to the water volume in the drainage pipe. When the drainage pipe is draining normally and there is no blockage, it ensures that the baffle will not rotate. It can automatically lift up impurities that are gathered by the water vortex during water discharge to ensure the normal discharge of accumulated water by the device.

[0018] 2. The circular filter cartridge in the filter assembly can filter the accumulated water entering the drainage pipe, preventing impurities from entering the road drainage system, reducing the labor intensity of subsequent impurity cleaning, and the guide plate can cooperate with the manhole cover to form a detection area to ensure more reasonable operation of the anti-clogging component; the descending water flow can impact the water-dispensing wheel, and the rotation of the water-dispensing wheel can drive the reciprocating screw to rotate, using the cleaning ring to clean the inner wall of the circular filter cartridge, preventing the circular filter cartridge from clogging, and the cleaning is automated, without the need to open the manhole cover for manual cleaning, ensuring the normal operation of the filter assembly;

[0019] 3. Impurities cleaned from the surface of the circular filter cartridge will automatically enter the collection ring, which will automatically collect the impurities for later centralized processing, making impurity cleaning more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the drainage mechanism of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram showing the operating state of the anti-blocking component of the present invention;

[0024] Figure 5 This is a schematic diagram of the anti-clogging component of the present invention;

[0025] Figure 6 This is a schematic diagram showing the connection between the tee and the suspension block of the present invention;

[0026] Figure 7 This is a schematic diagram showing the connection between the tee and the baffle of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0028] Figure 9 for Figure 7 Enlarged view of point C in the middle;

[0029] Figure 10 This is an exploded view of the impurity filtering component of the present invention;

[0030] Figure 11 This is a partial structural schematic diagram of the impurity filtering component of the present invention;

[0031] Figure 12 This is a schematic diagram of the bevel gear and reciprocating lead screw of the present invention.

[0032] In the diagram: 1. Permeable asphalt pavement body; 2. Drainage mechanism; 21. Drainage pipe; 22. Circular frame; 23. Manhole cover; 24. Anti-clogging component; 241. First connecting rod; 242. Second connecting rod; 243. Suspension block; 244. Drive airbag; 245. T-pipe; 246. First mounting frame; 247. Cylinder; 248. Spring; 249. Piston rod; 2410. First locking block; 2411. Second locking block; 2412. Second mounting frame; 2413. Circular hole; 2414. Limiting rod; 2415. Suspension plate; 2416. Rack; 2417. Gear; 24 18. Crossbar; 2419. Traction rope; 2420. Pulling ring; 2421. Counterweight; 25. Filter assembly; 251. Fixing ring; 252. Circular ring; 253. Circular filter cartridge; 254. Placement ring; 255. Storage ring; 256. Guide plate; 257. Reciprocating screw; 258. Sliding block; 259. Cleaning ring; 2510. Rotating rod; 2511. Water wheel; 2512. Bevel gear; 2513. Protective cover; 2514. Vertical rod; 2515. Sliding sleeve; 2516. Pull ring; 26. Drain hole; 27. Inlet pipe; 28. Baffle; 29. ​​Blocking block. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In practical implementation: such as Figure 1-12As shown, a permeable asphalt road drainage device includes: a permeable asphalt road body 1; a drainage mechanism 2; the drainage mechanism 2 is disposed at the top of the permeable asphalt road body 1; wherein, the drainage mechanism 2 includes a drainage pipe 21 embedded in the top of the permeable asphalt road body 1, a circular frame 22 fixedly connected to the drainage pipe 21 is disposed at the top of the permeable asphalt road body 1, a manhole cover 23 is disposed at the top of the circular frame 22, an anti-clogging component 24 is disposed at the bottom of the manhole cover 23, a filter component 25 is disposed on the inner wall of the drainage pipe 21, and drainage holes 26 are evenly distributed on the surface of the drainage pipe 21, and a blocking block 29 is disposed on the inner wall of the drainage hole 26. The permeable asphalt pavement body 1 itself has a certain degree of permeability, so water on the road surface will seep into the permeable asphalt pavement body 1 and enter the drainage pipe 21 through the drainage hole 26 for direct discharge. Excess water on the road will enter the drainage pipe 21 from the top of the manhole cover 23. The filter component 25 can remove impurities in the water, and the anti-clogging component 24 can automatically adjust whether the water inlet pipe 27 on the top of the manhole cover 23 is blocked, ensuring the normal drainage operation of the drainage mechanism 2.

[0035] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, the anti-clogging component 24 includes four second mounting frames 2412 embedded in the top of the manhole cover 23. The inner top wall of the second mounting frame 2412 is fixedly connected to a limit rod 2414. A suspension plate 2415 is slidably connected to the surface of the limit rod 2414. A rack 2416 is fixedly connected to one side of the suspension plate 2415. Four water inlet pipes 27 are provided at the front end of the manhole cover 23. A baffle 28 is rotatably connected to the inner wall of the water inlet pipe 27. One end of the baffle 28 passes through the water inlet pipe 27, the manhole cover 23 and the second mounting frame 2412 in sequence and is fixedly connected to a gear 2417. The gear 2417 and the rack 2416 are meshed. Multiple round holes 2413 are opened on the surface of the second mounting frame 2412. A drain port is opened at the bottom end of the second mounting frame 2412. Water enters the second mounting frame 2412 through the round hole 2413. The drainage outlet is smaller than the water inflow of the multiple round holes 2413. The water in the second mounting frame 2412 will cause the suspension plate 2415 to rise. The suspension plate 2415 will drive the rack 2416 to move upward. The rack 2416 will drive the gear 2417 to rotate, thereby making the baffle 28 rotate in the water inlet pipe 27.

[0036] like Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the anti-clogging assembly 24 further comprises two first connecting rods 241 embedded at the bottom end of the manhole cover 23, the bottom end of the first connecting rod 241 is inserted with a second connecting rod 242, the bottom end of the second connecting rod 242 is provided with a floating block 243, the top end of the manhole cover 23 is provided with four first mounting frames 246 corresponding to the water inlet pipe 27, the inner bottom wall of the first mounting frame 246 is fixedly connected with a cylinder 247, one end of the inner wall of the cylinder 247 is fixedly connected with a spring 248, the other end of the spring 248 is fixedly connected with a piston rod 249, the other end of the piston rod 249 penetrates out of the cylinder 247 and is fixedly connected with a first clamping block 2410, the other end of the baffle 28 sequentially penetrates through the water inlet pipe 27, the manhole cover 23 and the first mounting frame 246 and is fixedly connected with a second clamping block 2411, the first clamping block 2410 and the second clamping block 2411 are clamped, a three-way pipe 245 is arranged between the two longitudinal cylinders 247, the inner top wall of the first connecting rod 241 is provided with a driving air bag 244, and the other end of the three-way pipe 245 is in communication with the driving air bag 244. When accumulated water occurs in the drainage pipeline 21, the accumulated water will drive the floating block 243 to move upward, the second connecting rod 242 moves upward synchronously to squeeze the driving air bag 244, the gas in the driving air bag 244 enters the cylinder 247 through the three-way pipe 245, the gas squeezes the piston rod 249, the first clamping block 2410 and the second clamping block 2411 will complete clamping, limiting the baffle 28 and preventing the baffle 28 from rotating.

[0037] As Figure 5 and Figure 6 shown, a cross rod 2418 is fixedly connected between the two floating blocks 243, the top end of the floating block 243 is fixedly connected with a counterweight block 2421, and the counterweight block 2421 is in the shape of a hollow square ring.

[0038] As Figure 5 shown, a pulling ring 2420 is arranged in the middle of the top end of the manhole cover 23, the bottom end of the pulling ring 2420 is fixedly connected with a traction rope 2419, and the other end of the traction rope 2419 penetrates through the manhole cover 23 and is fixedly connected with the middle of the top end of the cross rod 2418.

[0039] As Figure 1 , Figure 2 , Figure 10 , Figure 11 and Figure 12As shown, the filter assembly 25 includes a fixing ring 251 fixedly connected to the inner wall of the drain pipe 21, a circular ring 252 fixedly connected to the inner edge of the fixing ring 251, a circular filter cylinder 253 provided at the top of the circular ring 252, a placement ring 254 fixedly connected to the inner wall of the drain pipe 21, and a guide plate 256 provided at the top of the placement ring 254. The impurity filtration assembly 25 also includes a reciprocating screw 257 rotatably connected to the inner top wall of the circular filter cylinder 253. The top end of the reciprocating screw 257 extends through the circular filter cylinder 253. A rotating rod 2510 is rotatably connected to the top end of the circular filter cylinder 253. Water-pushing wheels 2511 are fixedly connected to both ends of the rotating rod 2510. Bevel gears 2512 are fixedly connected to the top end of the reciprocating screw 257 and the surface of the rotating rod 2510. The two bevel gears 2512 mesh with each other. A sliding block 258 is provided on the surface of the reciprocating screw 257. A cleaning ring 259 that contacts the inner wall of the circular filter cylinder 253 is fixedly connected to the surface of the sliding block 258. The water entering the drainage pipe 21 will fall from the guide plate 256 and impact the water-dispensing wheel 2511. The water will then enter the road drainage system through the circular filter cylinder 253. At the same time, the water-dispensing wheel 2511 will drive the rotating rod 2510 to rotate. Under the action of the two bevel gears 2512, the reciprocating screw 257 will automatically rotate, thereby driving the cleaning ring 259 to move up and down along a predetermined route to clean the inner wall of the circular filter cylinder 253.

[0040] like Figure 11 As shown, a collection ring 255 is fixedly connected to the bottom end of the guide plate 256. A filter screen is embedded in the bottom end of the collection ring 255, and the surface of the collection ring 255 is in contact with the fixing ring 251. The bottom end of the guide plate 256 is curved into a funnel shape, and two pull rings 2516 are fixedly connected to the top end of the guide plate 256. The collection ring 255 can collect the impurities that are cleaned out.

[0041] like Figure 11 and Figure 12 As shown, a protective cover 2513 is fixedly connected to the top of the circular filter cartridge 253. The protective cover 2513 is U-shaped, and both bevel gears 2512 are located inside the protective cover 2513. The protective cover 2513 can enclose the bevel gears 2512, preventing water flow from directly impacting the bevel gears 2512 and thus protecting them.

[0042] like Figure 11 As shown, a vertical rod 2514 is fixedly connected to the inner top wall of the circular filter cylinder 253, and a sliding sleeve 2515 is slidably connected to the surface of the vertical rod 2514. The sliding sleeve 2515 and the sliding block 258 are fixedly connected. The cooperation between the vertical rod 2514 and the sliding sleeve 2515 can limit the sliding block 258, so that the cleaning ring 259 can reciprocate in the vertical direction.

[0043] When in use, the permeable asphalt road body 1 has a certain degree of permeability, so water on the road surface will seep into the permeable asphalt road body 1 and enter the drainage pipe 21 through the drainage hole 26 for direct discharge. Excess water on the road will enter the drainage pipe 21 through the water inlet pipe 27 at the top of the manhole cover 23. The water entering the drainage pipe 21 will fall up and down from the guide plate 256 and impact the water-dispensing wheel 2511. The water will enter the road drainage system through the circular filter cylinder 253. At the same time, the water-dispensing wheel 2511 drives the cleaning ring 259 to clean the inner wall of the circular filter cylinder 253. This ensures that there is no water accumulation above the manhole cover 23 and inside the drainage pipe 21.

[0044] When water is present above the manhole cover 23 but not inside the drainage pipe 21, it indicates that the water inlet pipe 27 at the top of the manhole cover 23 is blocked. The suspension block 243 is not affected by buoyancy, so the second connecting rod 242 will not squeeze the drive airbag 244. At this time, the first locking block 2410 and the second locking block 2411 are disengaged and will not restrict the baffle 28. The accumulated water enters the second mounting frame 2412 from the round hole 2413. The drainage outlet is smaller than the water inlet of the multiple round holes 2413. The accumulated water in the second mounting frame 2412 will drive the suspension plate 2415 to rise. The suspension plate 2415 drives the rack 2416 to move upward. The rack 2416 drives the gear 2417 to rotate, thereby realizing the rotation of the baffle 28 in the water inlet pipe 27. The rotation of the baffle 28 is used to treat the impurities at the water inlet pipe 27.

[0045] If water is present above the manhole cover 23 and also inside the drainage pipe 21, the accumulated water will cause the suspended block 243 to move upward, and the second connecting rod 242 will move upward simultaneously, squeezing the driving airbag 244. The gas in the driving airbag 244 will enter the cylinder 247 through the upper three-way pipe 245, and the gas will squeeze the piston rod 249. The first locking block 2410 and the second locking block 2411 will complete the locking, limiting the baffle 28 and preventing the baffle 28 from rotating. This indicates that the drainage mechanism 2 is operating normally at this time.

[0046] If there is no water above the manhole cover 23 but water is present in the drainage pipe 21, it indicates that the inside of the drainage pipe 21 needs to be cleaned. The pull ring 2420 and the traction rope 2419 can be used to retract the second link 242 into the first link 241, making it easier to remove the manhole cover 23. Then, the pull ring 2516 can be used to remove the guide plate 256 and the storage ring 255 for cleaning. This method can also be used to drain water when there is a lot of water on the road surface, causing flooding.

[0047] It should be noted that the permeable asphalt pavement described above utilizes existing technology and offers better permeability compared to traditional asphalt pavements. Therefore, this description is only applicable to... Figure 1The diagram is shown but not described in detail. Note on the principle: The reciprocating screw is represented by two threaded grooves with the same pitch but opposite directions, connected at both ends by a transition curve. The rotation of the reciprocating screw causes the side of the helical groove to push the slider placed in the helical groove to make axial reciprocating motion. This is existing technology and will not be elaborated on here.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A permeable asphalt road drainage device, characterized in that, include: Permeable asphalt road body (1); Drainage mechanism (2); The drainage mechanism (2) is located at the top of the permeable asphalt road body (1); The drainage mechanism (2) includes a drainage pipe (21) embedded in the top of the permeable asphalt road body (1). The top of the permeable asphalt road body (1) is provided with a circular frame (22) fixedly connected to the drainage pipe (21). The top of the circular frame (22) is provided with a manhole cover (23). The bottom of the manhole cover (23) is provided with an anti-blocking component (24). The inner wall of the drainage pipe (21) is provided with a filter component (25). The surface of the drainage pipe (21) is provided with evenly distributed drainage holes (26). The inner wall of the drainage holes (26) is provided with a blocking block (29). The anti-clogging component (24) includes four second mounting frames (2412) embedded in the top of the manhole cover (23). A limiting rod (2414) is fixedly connected to the inner top wall of each second mounting frame (2412). A suspension plate (2415) is slidably connected to the surface of the limiting rod (2414). A rack (2416) is fixedly connected to one side of the suspension plate (2415). Four water inlet pipes (27) are provided at the front end of the manhole cover (23). A baffle (28) is rotatably connected to the inner wall of the water inlet pipe (27). One end of the baffle (28) passes through the water inlet pipe (27), the well cover (23), and the second mounting frame (2412) in sequence and is fixedly connected to a gear (2417). The gear (2417) and the rack (2416) are meshed together. The surface of the second mounting frame (2412) is provided with multiple round holes (2413). The bottom end of the second mounting frame (2412) is provided with a drain port. The anti-clogging component (24) further includes two first connecting rods (241) embedded in the bottom of the manhole cover (23). The bottom of the first connecting rod (241) is connected to a second connecting rod (242). The bottom of the second connecting rod (242) is provided with a suspension block (243). The top of the manhole cover (23) is provided with four first mounting frames (246) corresponding to the water inlet pipe (27). The inner bottom wall of the first mounting frame (246) is fixedly connected to a cylinder (247). One end of the inner wall of the cylinder (247) is fixedly connected to a spring (248), and the other end of the spring (248) is fixedly connected to a piston rod (249). The other end of the piston rod (249) passes through the cylinder (247) and is fixedly connected to the first snap-fit ​​block (2410). The other end of the baffle (28) passes through the water inlet pipe (27), the well cover (23) and the first mounting frame (246) in sequence and is fixedly connected to the second snap-fit ​​block (2411). The first snap-fit ​​block (2410) and the second snap-fit ​​block (2411) are snapped together. A three-way pipe (245) is provided between the two cylinders (247) in the longitudinal direction. A driving airbag (244) is provided on the inner top wall of the first connecting rod (241). The other end of the three-way pipe (245) is connected to the driving airbag (244). The impurity filtering assembly (25) includes a fixing ring (251) fixedly connected to the inner wall of the drainage pipe (21), the inner edge of the fixing ring (251) is fixedly connected with a circular ring (252), the top end of the circular ring (252) is provided with a circular filter cartridge (253), the inner wall of the drainage pipe (21) is fixedly connected with a placement ring (254), and the top end of the placement ring (254) is provided with a guide plate (256); The impurity filtering assembly (25) further includes a reciprocating lead screw (257) rotatably connected to the inner top wall of the circular filter cartridge (253), the top end of the reciprocating lead screw (257) penetrates out of the circular filter cartridge (253), the top end of the circular filter cartridge (253) is rotatably connected with a rotating rod (2510), both ends of the rotating rod (2510) are fixedly connected with water-pulling wheels (2511), the top end of the reciprocating lead screw (257) and the surface of the rotating rod (2510) are both fixedly connected with bevel gears (2512), the two bevel gears (2512) are in meshed connection, the surface of the reciprocating lead screw (257) is provided with a sliding block (258), and the surface of the sliding block (258) is fixedly connected with a cleaning ring (259) that is in contact with the inner wall of the circular filter cartridge (253).

2. The permeable asphalt road drainage device according to claim 1, characterized in that: A cross bar (2418) is fixedly connected between the two suspension blocks (243), the top end of the suspension block (243) is fixedly connected with a counterweight block (2421), and the counterweight block (2421) is in the shape of a hollow square.

3. The permeable asphalt road drainage device according to claim 2, characterized in that: A pulling ring (2420) is arranged in the middle of the top end of the manhole cover (23), the bottom end of the pulling ring (2420) is fixedly connected with a traction rope (2419), and the other end of the traction rope (2419) penetrates through the manhole cover (23) and is fixedly connected with the middle of the top end of the cross bar (2418).

4. The permeable asphalt road drainage device according to claim 1, characterized in that: The bottom end of the guide plate (256) is fixedly connected with a storage ring (255), the bottom end of the storage ring (255) is embedded with a filter screen, the surface of the storage ring (255) is in contact with the fixing ring (251), the bottom end of the guide plate (256) is bent into a funnel shape, and the top end of the guide plate (256) is fixedly connected with two pull rings (2516).

5. A permeable asphalt road drainage device according to claim 1, characterized in that: The top end of the circular filter cartridge (253) is fixedly connected with a protective cover (2513), the protective cover (2513) is U-shaped, and the two bevel gears (2512) are both located inside the protective cover (2513).

6. A permeable asphalt road drainage device according to claim 1, characterized in that: The inner top wall of the circular filter cartridge (253) is fixedly connected with a vertical rod (2514), the surface of the vertical rod (2514) is slidably connected with a sliding sleeve (2515), and the sliding sleeve (2515) is fixedly connected with the sliding block (258).

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