CN202831173U

CN202831173U - Full-automatic sealed type road drainage system

Info

Publication number: CN202831173U
Application number: CN 201220457046
Authority: CN
Inventors: 韩昆
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2013-03-27
Anticipated expiration: 2022-09-10

Abstract

The utility model provides a full-automatic sealed type road drainage system. The full-automatic sealed type road drainage system comprises a frame on the ground and an inner core cover located inside the frame, wherein an outer wall under the ground is directly connected under the frame, the outer wall forms an outer cavity in a surrounding mode, the bottom of the outer cavity is communicated with the drainage system through a drainage pipe, an inner core wall under the ground is under the inner core cover, the inner core cover and the inner core wall form an inner cavity in a surrounding mode, and the inner core cover is made of water-seepage materials. When the water quantity is small, water flow enters the drainage pipe slowly and is discharged. When the water quantity is large, the water quantity inside a water storage cavity accumulates to a certain extent, a series of linkage reaction is caused, a drainage well is enabled to be fully opened, and therefore the water drainage quantity is increased. Furthermore, a sealed filtering chamber is provided to guarantee that rainwater flows into a rainwater pipe network after being filtered, and a rainwater transferring chamber is provided to achieve three-stage water drainage. The full-automatic sealed type road drainage system is capable of largely improving the water drainage capacity of the original old city, and has broad application prospects.

Description

Full-automatic enclosed formula road drainage system

Technical field

The utility model application relates to a kind of road drainage system, especially a kind of can according to the size of amount of rainfall automatically control drainage works state, the total closed type structure, have road drainage system three grades of drain functions, the draining of invisible closed formula.

Background technology

Highway engineering is got rid of infiltration in the road structure in order to reduce ponding and Water Damage, need to drainage system be set at the highway edge.But present road drainage system exists various problems:

1, the designing and arranging outlet capacity of the drainage pipeline networks of domestic majority is not enough, because that the design on road surface will be considered is attractive in appearance, can not be provided with too many catch-basin, and this has further limited again drainability.

2, present catch-basin belongs to Open architecture, the entrance of catch-basin is leaf grating for down pipe, and dust and impurity can arbitrarily enter in the catch-basin, and dust and impurity easily collect in the Storm Sewer Network in the effect of rainwater, make to form dirty amassing in the Storm Sewer Network, can reduce the drainability of Storm Sewer Network

When 3, raining, rainwater can be brought the sandy soil on the road surface into Storm Sewer Network together, and sandy soil can form deposition in pipe network, in case deposition just rests in the pipe network, a nearlyer step has been reduced the drainability of pipe network.

4, open storm-water system provides the living space of insect, mouse, and can give out peculiar smell, becomes the dead angle in city.

5, because existing drainage system exists draining can use not enough situation, when amount of rainfall is large, highway pavement has a large amount of ponding, when the automobile of running at high speed passes through, so that rainwater splashes, affect the visual field, pollute vehicle, easily cause traffic accident, threatened traffic safety, the destruction road structure that simultaneously ponding also can be serious, the serious consequence such as cause the crack, subside.

Above in China city ubiquitous problem, become the persistent ailment in China city, the comprehensive regulation and the human settlement in whole city caused considerable influence, and so far, still lacked really effectively improvement method.

The utility model content

The utility model application namely is the problems referred to above that exist in the present road drainage system, and a kind of closed drainage system that can automatically regulate according to amount of rainfall is provided.

Mentality of designing of the present utility model is as follows: described water trap have housing and inner core at ground surface, interior core cap adopts the infiltration material to make (identical with the road surface outward appearance), can allow water infiltrate slowly in the inner chamber under the interior core cap, when the water yield hour, ponding enters storage chamber, shows as the one-level draining; When the water yield increases, water the gathering when acquiring a certain degree of the water yield in storage chamber, the bottom surface of storage chamber descends, cause a series of interlock reaction, thereby cause moving down of interior core cap integral body, water trap is opened fully, and ponding can be entered then to be discharged in the drainage pipeline networks in the airtight filtration chamber by the interior core cap of earth's surface through descending drains, displacement increases, and shows as Municipal secondary effluent; When water accumulating volume further increased, a large amount of ponding flowed into transporting room through filter chamber, and when the water level of transporting room reach a certain height, the water level switch in the transporting room will be opened water pump, and ponding to the Storm Sewer Network water filling, shows as three grades of drainings by water pump.

Specifically, the described full-automatic enclosed formula road drainage system of the utility model application, comprise main body, main body comprises the housing that is positioned at the earth's surface and the core cap that is positioned within the housing, and the housing below directly connects the outer wall that is positioned at below the earth's surface, outer wall surrounds exocoel, exocoel bottom communicated drainage pipe, interior core cap below is the inner core wall, interior core cap and inner core wall surround inner chamber, intracavity bottom has aqueduct, wherein:

1, interior core cap is that seepy material is made, interior core cap bottom is provided with several support columns, support column is divided into disjunct two parts, lay respectively at the fixed part on the base of the following deep layer in earth's surface and be positioned at sliding part on the fixed part, sliding part can slide up and down in the chute below being arranged on the earth's surface, fixed part and sliding part are located along the same line, and be filled with slide block in the discontinuous part between the two, slide block is that magnetic material is made, under the earth's surface at slide block place, have the side channel that stretches out to horizontal direction, the end of side channel is provided with the block that magnetic material is made, and the Magnetic Phase that block is relative with slide block is same, and slide block can slide in side channel.

2, intracavity bottom has several aqueducts, the storage chamber of the straight-through below of aqueduct, the diapire of storage chamber is near the sidewall of storage chamber but separate with sidewall, be mutual structure independently, be inserted with draught excluder in the aqueduct, the end that draught excluder is positioned on the inner chamber expands, can the confined bed pipe inlet, the other end is connected with storage chamber bottom cavity top, the cavity top, bottom of storage chamber is provided with the lead that runs through storage chamber, diapire is positioned on the level of support column slide block, the both sides of storage chamber bottom cavity are provided with the pushing block that magnetic material is made, and the one side polarity that pushing block is relative with slide block is identical, and the top of lead is respectively equipped with first group of relative magnetic part of position with the inboard relative position of storage chamber roof, the number of the magnetic material of first group of magnetic part is two, and two magnetic parts polarity relatively simultaneously is opposite.

Be separated with certain gap between inner chamber and the storage chamber, be provided with spring assembly between inner chamber bottom surface and storage chamber end face, the two ends of spring assembly are individually fixed in inner chamber bottom surface and storage chamber end face.

3, also be provided with outlet pipe on the sidewall of exocoel, outlet pipe leads directly to the dmp filter chamber, and a side of filtration chamber is provided with transporting room, and the bottom of rainwater transporting room is provided with for the water pump that ponding is pumped into gutter.

Further, also be provided with the filtration chamber between exocoel and the gutter, the purpose that the filtration chamber is set is for the ponding that flows in the drainage pipeline networks being filtered, preventing that dirt and foreign material are to the obstruction of drainage pipeline networks.

Further, be set to closed structure in the described filtration chamber, for lower floor filters and the upper strata filtration, lower floor is filtered into the mode that sand and pervious concrete combine and filters, when the rainwater in the filtration chamber reach a certain height, rainwater also can carry out sidewall by the pervious concrete structure that filter on the upper strata and filter draining, and the silt in the rainwater or foreign material are all filtered, and the rainwater after the filtration flows into headrace.

Further, the top Earth surface plane of described filtration chamber is provided with cover plate, opens the cleaning that can carry out the filtration chamber.

Further, the water pump of described rainwater transporting room is provided with water level switch, when the water level of rainwater transporting room internal water accumulation reaches the height of water level switch, water level switch is opened, the junction of leader drain and branch drain is provided with hydraulic pressure switch, when leader drain has a large amount of rainwater, hydraulic pressure switch disconnects the water pump circuit, the transporting room water pump can not carry out powered operation, rainwater can be stored at transporting room, and when the leader drain amount of rainfall was less, hydraulic pressure switch was closed, water in the transporting room can be transported to branch drain by water pump, then enters in the leader drain.

Further, the rain pipe in the described drainage system against rain is equipped with non retern valve, prevents rainwater and pours in down a chimney phenomenon.

Further, also be provided with ladder on the sidewall of described rainwater transporting room, enter the rainwater transporting room for the staff and safeguard.

Further, described spring assembly can substitute by two identical magnetic parts of polarity are set, the outer top of the outer lower side of bottom wall of inner cavity and storage chamber roof is respectively equipped with two relative second group of magnetic parts of position, the number of magnetic material is two, and two magnetic parts polarity relatively simultaneously is identical, utilize the principle of magnetic part two like magnetic poles repel each other, can realize equally the effect of spring.

Further, the material of described interior core cap is the water permeability material of permeable cement, pervious concrete or water-permeable brick, for having the material of certain hole, can allow rainwater to see through.

The described full-automatic enclosed formula road drainage system of the utility model application has advantages of following:

1, the pipe network that this drainage system is mainly used in original drainage system all exists the designing and arranging outlet capacity not enough, original pipe network is aging, if improvement urban sewerage and drainage system, employing all excavates original pipe network and changes pipeline again, its cost is huge, full-automatic enclosed formula drainage system is just transformed at the ponding point on road surface, can realize after the transformation that original urban pipe network is motionless, and increase the drainability of original pipe network, has input little, the advantage that construction period is short, can significantly promote the drainability in original old city, prevent in the situation of the too much traffic congestion of ponding when raining heavyly;

2, in the drainage procedure, realize automatically control, realize this function by a series of interlinked mechanism, need not too much manual intervention;

3, totally enclosed design makes catch-basin be under normal conditions closed state, and various silts and foreign material can not enter into rain drainage pipe, uses the maintenance cost of pipeline to reduce, and has promoted the drainability of pipeline;

4, the design of total closed type filtration chamber effectively reduces silt and the obstruction of other foreign material to drainage system in the rainwater, and is convenient to clean;

5, totally enclosed design makes storm sewer be cut off with contacting of ground, has eliminated the living space of various insects and mouse, has effectively controlled the dead angle in city;

6, the seepy material on surface can be realized the stealthy effect identical with the road surface outward appearance, beautifies the road surface;

During 7, owing to the opening water discharge mouth, can realize unlatching in full in the unit area, the road area that catch-basin takies is less, and the installation site is flexible;

8, when vehicle through the Water in Rainwater Drainage hydrophone, water trap can not move down, a rain just can make draining open, the safety of travelling that guaranteed vehicle.

Description of drawings

Fig. 1 is the utility model embodiment rainfall hour, the cross-sectional view of main body

When Fig. 2 is the increase of Fig. 1 embodiment rainfall, the cross-sectional view that the storage chamber diapire moves down

Fig. 3 is Fig. 1 embodiment rainfall when further increasing, the cross-sectional view that interior core cap descends

Fig. 4 is the closed filtering system that the utility model is implemented

Wherein, 1 is interior core cap, 10 is inner chamber, 11 is support column, 110 is sliding part, 111 is fixed part, 112 is the bearing post sliding cavity, 12 is draught excluder, 13 is aqueduct, 14 is spring assembly, 15 is draining valve, 16 is the inner core wall, 17 is main outfall, 18 is the draining valve outfall, 20 is exocoel, 3 is gutter, 30 filtration chamber's outfall, 31, be the water trap branch drain, 32 is water trap branch drain non retern valve, 33 filtration chamber's branch drain non retern valves, 34, the pump drain pipe non retern valve, 35 is the filter chamber branch drain, 4 is storage chamber, 40 is diapire, 41 is lead, 42 is first group of magnetic part, 43 is storage chamber bottom cavity, 44 is the storage chamber outfall, 410 is pushing block, 5 is side channel, 51 is block, 52 is sliding shoe, 6 is main body, 7 is the filtration chamber, 71 is pervious barrier, 72 is the sandstone layer, 73 is pervious concrete, 74, supporting, 75 is drain chamber, 76 is filtration chamber's inspection cover, 8 is headrace, 9 is main drainage pipeline, 100 is transporting room, 101 is water pump, 102 is level sensor, 103 is the transporting room access hole, 104 is ladder, 105 is pump drain pipe, 106 are the transporting room platform that blocks water, 107 is the transporting room water inlet, 108 is pressure sensor

The specific embodiment

Below in conjunction with accompanying drawing; the 26S Proteasome Structure and Function of the described full-automatic enclosed formula road drainage system of the utility model application is realized being described; purpose is better to understand the technology contents of the utility model application for the public; rather than to the restriction of described technology contents; in fact; with identical or approximate principle; the improvement that described water trap is carried out; comprise the change of its shape, size, material; and respective element be equal to replacement; to realize basic identical effect as purpose, then all within the utility model application technical scheme required for protection.

As shown in Figure 1, the described full-automatic enclosed formula road drainage system of the utility model application, comprise main body, main body comprises the housing 2 that is positioned at the earth's surface and the core cap 1 that is positioned within the housing 2, housing 2 belows directly connect the outer wall that is positioned at below the earth's surface, outer wall surrounds exocoel 20, exocoel 20 bottom communicated drainage pipes 3, interior core cap 1 below is inner core wall 16, interior core cap 1 and inner core wall 16 surround inner chamber 10, wherein, interior core cap 1 is made for seepy material, be permeable cement, pervious concrete or water-permeable brick, interior core cap 1 bottom is provided with several support columns 11, support column 11 is positioned at the inner chamber inboard, support column 11 is divided into disjunct two parts, be respectively the fixed part 111 that is sitting on the base that is positioned at the following deep layer in earth's surface and the sliding part 110 that is positioned on the fixed part 111, sliding part 110 is arranged in the bearing post sliding cavity 112, fixed part 111 and sliding part 110 are located along the same line, and be filled with slide block 52 between the two in the discontinuous part, slide block 52 is made for magnetic material, under the earth's surface at slide block 52 places, have the side channel 5 that stretches out to horizontal direction, the end of side channel 5 is provided with the block 51 that magnetic material is made, the relative Magnetic Phase of block 51 and slide block 52 with, slide block 52 can be in side channel 5 interior slips; Inner chamber 10 bottoms have several aqueducts 13, the storage chamber 4 of aqueduct 13 straight-through belows, the diapire 40 of storage chamber 4 is near the sidewall of storage chamber 4 but separate with sidewall, be mutual structure independently, be inserted with draught excluder 12 in the aqueduct 13, the end that draught excluder 12 is positioned on the inner chamber 10 expands, can confined bed water pipe 13 entrances, the other end is connected with the top of the bottom cavity of storage chamber 4, the bottom surface of storage chamber 4 is provided with the lead 41 that runs through storage chamber 4 bottom surfaces, the bottom of lead 41 is positioned on the level of slide block 52, the both sides of lead 41 bottoms are provided with the pushing block 410 that magnetic material is made, the one side polarity that pushing block 410 and slide block 52 are relative is identical, the top of lead 41 is respectively equipped with first group of relative magnetic part 42 of position with the inboard relative position of storage chamber 4 roofs, the number of the magnetic material of first group of magnetic part 42 is two, and two magnetic parts polarity relatively simultaneously is opposite; Be separated with certain gap between inner chamber 10 and the storage chamber 4, the outer top of the outer lower side of inner chamber 10 diapires and storage chamber 4 roofs is provided with spring assembly 14, in conjunction with shown in Figure 4, also be provided with outlet pipe 3 on the sidewall of main body 6 exocoels 20, main body 6 bottoms are provided with delivery port 31, outlet pipe 3 connects filtration chamber 7, filtration chamber's 7 sidewalls are provided with pervious barrier 71,7 bottoms, filtration chamber are provided with sand stone layer 72, the sand stone layer below is provided with pervious concrete 73, the pervious concrete below is provided with supporting base 74, and the pervious barrier outside is

permeable chamber

75, and 75 belows, permeable chamber are filtration chamber's outfall 30, outfall below, filtration chamber is headrace 8, headrace 8 is communicated with filtration chamber's branch drain 35, is provided with filtration chamber's branch drain non retern valve 33 in filtration chamber's branch drain 35, and filtration chamber's branch drain non retern valve 33 is communicated with leader drain 9.

Further, escape canal 8 also is connected with the transporting room platform 106 that blocks water, transporting room block water platform 106 be connected for transporting room water inlet 107, transporting room 100 is provided with and is level sensor 102, level sensor 102 control water pumps 101, water pump 101 connects

pump drain pipes

105, and 105 li of transporting room branch drains are provided with the pump drain pipe non retern valve, 100 also are provided with inspection hole 103, ladder 104 in the transporting room.

When not raining, because the fixed part 111 of bearing post 11, sliding part 110, sliding shoe 52 are all on same branch line, bearing post plays the effect of supporting, and interior core cap can not move down when people or automobile were pressed on the interior core cap 1, had guaranteed automobile and pedestrian's safety.

When amount of rainfall hour; such as Fig. 1; rainwater can leak down from interior core cap 1; the rainwater that filters through interior core cap can flow into inner chamber 10; flow into aqueduct 13 from inner chamber 10; rainwater flows into storage chamber 4 from aqueduct 13; rainwater compiles at storage chamber 4; when the capacity of rainwater reaches the capacity of setting; the downward gravity that the weight of water produces is during greater than the suction of first group of magnetic part 42; the direction that diapire 40 prolongs lead moves down; lead rests on the position of setting; pushing block 410 is installed on the diapire; move down with diapire; to rest on the position of setting during pushing block 410; just rest on the symmetrical position of slide block 52 on; slide block 52 is identical with pushing block 410 polarity; the direction of prolonging side channel 5 at the effect sliding block 52 of repulsion moves; rest on the position of setting; draught excluder 12 also will move down simultaneously; and close aqueduct 13; as shown in Figure 2; owing to the drain discharge of storage chamber outfall 44 is to rest on the displacement that the needed setting-up time of desired location designs storage chamber outfall 44 according to diapire 40; so diapire can have a time of staying at desired location; to guarantee that slide block 52 is pushed that piece 410 is shifted the position of setting onto and time of stopping setting, for interior core cap 1 integral body moves down, open main outfall 17 ready.If rainwater is seldom the time, when enough not opening main outfall, rainwater can flow into water trap branch drains 31 from storage chamber outfall 44, flows into main drainage pipelines through water trap branch drain non retern valve 32.

When rainwater continues to flow into interior core cap 1, the water level of inner chamber 10 will continue to rise, when the rainwater weight of inner chamber surpasses the repulsion of spring assembly, the sliding section 110 of interior core cap 1 and bearing post, the position of setting will be moved down into together, main outfall 17 will be opened, and rainwater will be discharged from main outfall 17, and a large amount of rainwater will flow in the gutter 3.

Rainwater enters filtration chamber 7 from gutter 3, filtration chamber 7 only enters pipe, do not establish gutter, the wall of filtration chamber is that pervious concrete or water-permeable brick are built into, form pervious barrier 71, the below, filtration chamber is sand stone layer 72, purpose is in order to filter the impurity in the rainwater, sand stone layer 72 belows are pervious concrete or water-permeable brick 73, pervious concrete or water-permeable brick 73 belows are provided with four supporting bases 74, the purpose of design supporting base is in order to set up the channel of a draining, and draining can be carried out in the space between the supporting base.

Further, a large amount of rainwater enters drain chamber 75 after filtration chamber's 7 interior process sand stone layer 72 and pervious concrete or water-permeable brick 73 filtrations, then flow into filtration chamber's outfall.

Further, when a large amount of foreign material are arranged in the filtration chamber, the water permeable ability of sand stone layer 72 will be restricted, 7 interior water levels will raise rainwater in the filtration chamber, rainwater will flow into drain chamber 75 from pervious barrier 71, when having guaranteed that filtration chamber's foreign material are too much, still can effectively carry out draining.

Further, when the operational maintenance drainage system against rain, filtration chamber's inspection cover 76 need to be opened, with the foreign material cleaning of the inside, to guarantee the drainability of drainage system.Totally enclosed type filtration chamber 7 can guarantee that rainwater all is just to flow into Storm Sewer Network after filtering, and makes the alluvial that can not occur impurity in the Storm Sewer Network, has reduced the maintenance cost of Storm Sewer Network.

A large amount of rainwater is discharged by filtration chamber's outfall 30, flows into filtration chamber's branch drain 35 through headrace 8, flows into main drainage pipeline 9 through filtration chamber's branch drain non retern valve 33.

Further, when main drainage pipeline 9 is in the draining of full footpath, the water of discharging from filtration chamber's outfall 30 will form fully draining, formation is compiled, and when water level blocks water platform 106 above transporting room, rainwater will flow into transporting rooms 100 through transporting room water inlet 107, rainwater will compile at transporting room 100, completely the footpath is during draining to have guaranteed the rainwater webmaster, and the rainwater on the road surface still can be drained, and has guaranteed the safety of driving.

Further, when rainwater reaches the height of design, level sensor 102 is with contact in the closed water pump circuit, pressure sensor 108 is handed over interface at main drainpipe 9 and water draining tee 36, when hydraulic pressure does not reach the hydraulic pressure of design, circuit is in closure state, and water pump 101 is started working, and the ponding of transporting room 100 will flow into main drainpipe 9 by pump drain pipe 105 and pump drain pipe non retern valve 34.

Further, when pressure sensor 108 records hydraulic pressure and has surpassed the hydraulic pressure of design in main drainpipe 9, sensor will cut off circuit contact, although this moment, the contact of level sensor 102 was closed, but water pump still can not be worked, when the hydraulic pressure in the gutter 9 is lower than the hydraulic pressure of design, the closing of contact, water pump is started working.

Further transporting room 100 is provided with transporting room access hole 103, can check the indoor equipment of transfer, also is provided with ladder 104 on the described rainwater transporting room sidewall, enters rainwater transporting room 100 for the staff and carries out repair and maintenance.

Ask described full-automatic enclosed formula road drainage system in the utility model, ponding point on the road surface is transformed, can realize after the transformation that original urban pipe network is motionless, and increase the drainability of original pipe network, have advantages of that input is little, the construction period is short, can significantly promote the drainability in original old city, prevent from having a extensive future in the situation of the too much traffic congestion of ponding when raining heavyly.

Claims

1. full-automatic enclosed formula road drainage system, comprise main body, main body comprises the housing that is positioned at the earth's surface and the core cap that is positioned within the housing, the housing below directly connects the outer wall that is positioned at below the earth's surface, outer wall surrounds exocoel, exocoel bottom communicated drainage pipe, and interior core cap below is the inner core wall, interior core cap and inner core wall surround inner chamber, it is characterized in that:

1) interior core cap is that seepy material is made, interior core cap bottom is provided with several support columns, support column is divided into disjunct two parts, be respectively the fixed part that is sitting on the base that is positioned at the following deep layer in earth's surface and the sliding part that is positioned on the fixed part, sliding part can slide up and down in the chute below being arranged on the earth's surface, fixed part and sliding part are located along the same line, and be filled with slide block in the discontinuous part between the two, slide block is that magnetic material is made, under the earth's surface at slide block place, have the side channel that stretches out to horizontal direction, the end of side channel is provided with the block that magnetic material is made, and the Magnetic Phase that block is relative with slide block is same, and slide block can slide in side channel;

2) intracavity bottom has several aqueducts, the storage chamber of the straight-through below of aqueduct, the diapire of storage chamber is near the sidewall of storage chamber but separate with sidewall, be mutual structure independently, be inserted with draught excluder in the aqueduct, the end that draught excluder is positioned on the inner chamber expands, can the confined bed pipe inlet, the other end is connected with storage chamber bottom cavity top, cavity top, storage chamber bottom is provided with the lead that runs through the storage chamber bottom surface, diapire is positioned on the level of support column slide block, the both sides of storage chamber bottom cavity are provided with the pushing block that magnetic material is made, and the one side polarity that pushing block is relative with slide block is identical, and the top of lead is respectively equipped with first group of relative magnetic part of position with the inboard relative position of storage chamber roof, the number of the magnetic material of first group of magnetic part is two, and two magnetic parts polarity relatively simultaneously is opposite;

3) be separated with certain gap between inner chamber and the storage chamber, be provided with spring assembly between inner chamber bottom surface and storage chamber end face, the two ends of spring assembly are individually fixed in inner chamber bottom surface and storage chamber end face;

4) also be provided with outlet pipe on the sidewall of exocoel, outlet pipe leads directly to the dmp filter chamber, and a side of filtration chamber is provided with transporting room, and the bottom of rainwater transporting room is provided with for the water pump that ponding is pumped into gutter.

2. full-automatic enclosed formula road drainage system according to claim 1, it is characterized in that: be set to closed structure in the described filtration chamber, for lower floor filters and the upper strata filtration, lower floor is filtered into the mode that sand and pervious concrete combine and filters, when the rainwater in the filtration chamber reach a certain height, rainwater also can carry out sidewall by the pervious concrete structure that filter on the upper strata and filter draining, and the silt in the rainwater or foreign material are all filtered, and the rainwater after the filtration flows into headrace.

3. full-automatic enclosed formula road drainage system according to claim 1, it is characterized in that: the water pump of described described rainwater transporting room is provided with water level switch and hydraulic pressure switch, when the water level of rainwater transporting room internal water accumulation reaches the height of water level switch, water level switch is opened, the junction of leader drain and branch drain is provided with hydraulic pressure switch, when leader drain has a large amount of rainwater, hydraulic pressure switch disconnects the water pump circuit, the transporting room water pump can not carry out powered operation, rainwater can be stored at transporting room, and when the leader drain amount of rainfall was less, hydraulic pressure switch was closed, water in the transporting room can be transported to branch drain by water pump, then enters in the leader drain.

4. full-automatic enclosed formula road drainage system according to claim 1, it is characterized in that: the material of described interior core cap is permeable cement, pervious concrete or water-permeable brick.

5. full-automatic enclosed formula road drainage system according to claim 1 is characterized in that: be equipped with non retern valve in the rain pipe, prevent rainwater and pour in down a chimney phenomenon.