CN113149274A - Municipal administration road initial stage rainwater collection device - Google Patents

Abstract

The utility model relates to a town road initial stage rainwater collection device relates to municipal rainwater processing apparatus's field, it includes the escape canal, the catch basin, be provided with primary filter equipment in the escape canal, the secondary filter equipment is located primary filter equipment's below, be provided with rainwater purifier in the catch basin, it is equipped with the clean water basin to dig between escape canal and the catch basin, it is connected with clean carousel to rotate in the clean water basin, the quotation of clean carousel is towards the outlet conduit mouth of pipe, be provided with flocculation device and sediment clearing device on the clean carousel. This application has the pollution degree that can reduce the rainwater to the river, reduces the effect to the destruction of environment.

Description

Municipal administration road initial stage rainwater collection device

Technical Field

The application relates to the field of municipal rainwater treatment devices, in particular to a municipal road initial rainwater collecting device.

Background

The initial stage rainwater has often dissolved the polluting gases such as acid gas, factory's waste gas, automobile exhaust in the air, and it falls behind ground owing to erode roofing and asphalt concrete road etc. for contain many organic pollutants and heavy metal etc. in the initial stage rainwater, and the rainwater can carry a large amount of road surface rubbish, and it directly discharges into the river course, has caused certain degree pollution for the river course, consequently is necessary to collect the initial stage rainwater, handles and then discharges into the river course again.

In the related art, referring to fig. 1, the device for collecting initial rainwater on a political affairs road includes a drainage ditch 1 dug on a road surface, a grid plate 2 laid on the drainage ditch 1 and used for shielding an opening of the drainage ditch 1, a water collecting tank 3 dug on the ground, and a water pipe 4 arranged between the drainage ditch 1 and the water collecting tank 3, wherein a cover plate 5 for sealing a tank opening of the water collecting tank 3 is arranged on the water collecting tank 3, a filter screen 6 is arranged in the water pipe 4 and used for intercepting pollutants in rainwater, and rainwater flows into the drainage ditch 1 from a leak hole of the grid plate 2 and flows into the water collecting tank 3 through the water pipe 4.

In view of the above-mentioned related art, the inventor believes that although the above-mentioned collecting device can intercept pollutants in rainwater to a certain extent, the kinds of impurities in rainwater sewage are various, and the rainwater is intercepted by a filter screen alone, and the decontamination effect of rainwater is very poor, resulting in a lot of rainwater impurities collected in a water collecting tank, and at this moment, such sewage still pollutes rivers and destroys the environment when being discharged into the rivers.

Disclosure of Invention

In order to reduce the pollution degree of rainwater to the river, to the destruction of environment, this application provides a rainwater and sewage reposition of redundant personnel town road initial stage rainwater collection device.

The application provides a pair of town road initial stage rainwater collection device adopts following technical scheme:

the utility model provides a town road initial stage rainwater collection device, includes escape canal, catch basin, be provided with primary filter equipment, second grade filter equipment in the escape canal, second grade filter equipment is located primary filter equipment's below, be provided with rainwater purifier in the catch basin, it is equipped with the clean water basin to dig between escape canal and the catch basin, the through connection has the inlet channel between clean water basin and the escape canal, the through connection has outlet conduit between clean water basin and the catch basin, it is connected with clean carousel to rotate in the clean water basin, clean carousel's quotation is towards the outlet conduit mouth of pipe, be provided with flocculation device and sediment clearing device on the clean carousel.

Through adopting above-mentioned technical scheme, through elementary filter equipment, second grade filter equipment can carry out preliminary interception to the rainwater and filter, the rainwater passes through during inlet channel gets into the clean water basin afterwards, utilize flocculation device can pour the flocculating agent into the clean water basin, the sediment of rainwater is clear away by sediment clearing device afterwards, rainwater in the clean water basin passes through outlet channel and gets into in the catch basin, further improve the purifying effect of rainwater through rainwater purifier, the rainwater that purifies through this kind of mode, the clean effect of rainwater is better, be favorable to reducing the pollution degree of rainwater to the river, reduce the destruction to the environment.

Optionally, elementary filter equipment is including rotating connecting rod, the filter screen of fixed connection on the connecting rod in the escape canal, sliding connection scraper blade on the filter screen, set up and be used for driving connecting rod pivoted drive assembly one in the escape canal, the connecting rod sets up along the length direction in escape canal, the filter screen is rotatable to be sheltered from in the opening in escape canal, the holding tank has been seted up along its length direction on the connecting rod, the notch of holding tank is towards the filter screen, fixedly connected with brush on the lateral wall of scraper blade, the brush hair cross-under of brush is in the mesh of filter screen, fixedly connected with is used for driving the scraper blade along the perpendicular to connecting rod direction and is reciprocating motion's electric jar one on the filter screen, the direction setting along the perpendicular to connecting rod of electric jar one.

Through adopting above-mentioned technical scheme, fall to the filter screen when rainwater gets into the escape canal on, can intercept the pollutant that carries in the rainwater through the filter screen, simultaneously, utilize drive assembly one can swing the filter screen, during the filter screen swing, the scraping of scraper blade is being cooperated, is favorable to the filter screen to keep clean in can landing to the holding tank by the interception pollutant on the filter screen, is favorable to the flow smoothness of rainwater.

Optionally, the first driving assembly comprises a driving chain wheel rotatably connected with the drainage ditch, a driven chain wheel fixedly connected with the connecting rod, and a chain rotatably meshed with the driving chain wheel and the driven chain wheel, and the first driving assembly is fixedly connected with a first driving motor for driving the driving chain wheel to rotate in the drainage ditch.

Through adopting above-mentioned technical scheme, when needs swung the filter screen, start driving motor one, driving motor one drives drive sprocket and rotates, and drive sprocket drives driven sprocket and rotates, and driven sprocket drives the connecting rod and rotates to drive the filter screen and rotate.

Optionally, second grade filter equipment is including rotating dwang, the fixed connection in the escape canal interception filter screen section of thick bamboo, a plurality of setting up the hook of scraping on the interception filter screen section of thick bamboo on the dwang, the dwang sets up along the length direction in escape canal, the interception filter screen section of thick bamboo has been seted up along its length direction and has been advanced dirty groove, advance dirty groove and be provided with a plurality ofly along the circumference of interception filter screen section of thick bamboo, scrape the inside and outside surface of hook equipartition in the interception filter screen section of thick bamboo.

By adopting the technical scheme, when rainwater passes through the intercepting filter screen cylinder, pollutants in the rainwater can be hooked and scraped by utilizing the hook, the rainwater can be further purified, meanwhile, the intercepting filter screen cylinder can be driven to rotate by scouring of the rainwater, so that the contact area between the intercepting filter screen cylinder and the rainwater is increased, and the rainwater purification effect is improved.

Optionally, rainwater purification device is including dismantling the baffler in the catch basin, setting up the cobble layer in the catch basin, the baffler sets up along the horizontal direction, set up a plurality of apopores that link up the baffler face on the baffler, the apopore is snakelike setting along vertical direction, the apopore is less than its bore to cobble layer one end dorsad towards the bore of cobble layer one end, can dismantle in the catch basin and be connected with the installation net, the installation net sets up and is located the below of baffler along the direction that is on a parallel with the baffler, the last net surface upper berth of installation net is equipped with the cobble layer, the water inlet of the inlet channel in the catch basin is located between baffler and the cobble layer.

Through adopting above-mentioned technical scheme, the rainwater gets into back in the catch basin, flows down to the pebble layer under the action of gravity on, and through the sieve on pebble layer strain, the pollutant of part rainwater is intercepted by the pebble layer to along with the rising of rainwater, the impurity of rainwater is intercepted by the apopore on the baffler once more, thereby plays the effect of purifying the rainwater.

Optionally, be provided with the fastener who is used for fastening the cobble layer in the catch basin, fastening components compresses tightly the piece including compressing tightly the net, setting and compressing tightly on the net, compress tightly the top that the net laid the cobble layer along the direction that is on a parallel with the baffler, compress tightly the piece and include locking spring, rotate the locking bolt of connecting in locking spring one end, locking spring locking bolt's the tip dorsad and the lower wire side fixed connection who compresses tightly the net, the bottom surface threaded connection of locking bolt and catch basin.

Through adopting above-mentioned technical scheme, utilize taut spring to strain to compressing tightly the net, make the filter screen fasten the cobble layer, prevent the clearance grow between the adjacent cobble, be favorable to maintaining the purifying effect of cobble layer to the rainwater.

Optionally, the flocculation device is including holding the box, placing the flocculating agent in holding the box, hold box fixed connection in clean carousel towards escape canal one side lateral wall, it is fan-shaped setting to hold the box, hold the box and seted up the drain hole on the lateral wall at clean carousel center, it has the baffle that is used for shutoff drain hole to hold sliding connection on the box, be provided with the electric jar two that is used for driving the baffle and removes on the clean carousel.

Through adopting above-mentioned technical scheme, when holding the box and rotating to the top of clean water basin along with clean carousel, utilize the electric jar to remove two pairs of baffles, make the flocculating agent that holds in the box fall into the clean water basin, play the effect of accelerating the precipitation of rainwater pollutant.

Optionally, the sediment removing device comprises a plurality of elastic rods fixedly connected to the side wall of the cleaning turntable, and an arc-shaped plate fixedly connected to one end of the elastic rods, back to the cleaning turntable, and the elastic rods are arranged in the direction parallel to the surface of the cleaning turntable.

Through adopting above-mentioned technical scheme, when the sediment fell to the bottom surface of clean water reservoir, utilize the arc to ladle out the movement to the sediment, play the effect of clean sediment.

To sum up, the application comprises the following beneficial technical effects: through primary filter equipment, secondary filter equipment, rainwater purifier, flocculation device and sediment clearing device, can improve the clean effect to the rainwater, be favorable to reducing the pollution degree of rainwater to the river, reduce the destruction to the environment.

Drawings

Fig. 1 is a schematic view of a related art rainwater collecting apparatus in the background art.

Fig. 2 is a schematic sectional view of a rainwater collection device in an embodiment of the present application.

Fig. 3 is a schematic view of an enlarged view at a in fig. 2.

Fig. 4 is a schematic view of a rainwater collection apparatus for embodying an embodiment of the present application.

Fig. 5 is a schematic view of an enlarged view at B in fig. 4.

Fig. 6 is a schematic cross-sectional view for embodying the second driving unit.

Fig. 7 is a schematic structural view for embodying the cleaning turntable.

Fig. 8 is a schematic view for embodying a drain port on the cartridge.

Description of reference numerals: 1. a drainage ditch; 2. a grid plate; 3. a water collecting tank; 4. a water pipe; 5. a cover plate; 6. filtering with a screen; 7. a clear water tank; 8. a water inlet pipe; 9. a water outlet pipeline; 101. a connecting rod; 102. a filter screen; 103. a squeegee; 1041. a drive sprocket; 1042. a driven sprocket; 1043. a chain; 11. accommodating grooves; 12. a brush; 13. a first electric cylinder; 14. driving a motor I; 151. rotating the rod; 152. intercepting a filter screen cylinder; 153. scraping a hook; 16. a sewage inlet tank; 17. a pool opening plate; 18. a connecting shaft; 19. cleaning the turntable; 201. a chain wheel I; 202. a second chain wheel; 203. a drive chain; 21. a second driving motor; 22. a containing box; 23. a discharging port; 24. a baffle plate; 25. a second electric cylinder; 261. an elastic rod; 262. an arc-shaped plate; 271. a barrier plate; 272. a pebble layer; 28. a water outlet hole; 29. installing a net; 30. compacting the net; 31. a locking spring; 32. and locking the bolt.

Detailed Description

The present application is described in further detail below with reference to figures 2-8.

The embodiment of the application discloses town road initial rainwater collection device.

Examples

Referring to fig. 2, the municipal road initial rainwater collection device comprises a drainage ditch 1 and a water collection tank 3. Wherein, dig between escape canal 1 and the catch basin 3 and be equipped with clean water basin 7, be provided with primary filter equipment, the second grade filter equipment that is used for purifying the rainwater in the escape canal 1, be provided with flocculation device and sediment clearing device in the clean water basin 7, be provided with rainwater purification installation in the catch basin 3.

Referring to fig. 2 and 3, a water inlet pipe 8 is connected between the drainage ditch 1 and the water purification tank 7 in a penetrating manner, a water outlet pipe 9 is connected between the water purification tank 7 and the water collection tank 3 in a penetrating manner, and the height of the water inlet pipe 8 is higher than that of the water outlet pipe 9.

Referring to fig. 4 and 5, the primary filter device includes a connecting rod 101 rotatably connected to the drain 1, a filter screen 102 fixedly connected to the connecting rod 101, a scraper 103 slidably connected to the filter screen 102, and a first driving assembly disposed in the drain 1 for driving the connecting rod 101 to rotate.

Wherein, the connecting rod 101 is cylindricly set up and sets up along the length direction of escape canal 1. The filter screen 102 is a cuboid, one side edge of the filter screen 102 is fixedly connected with the side wall of the connecting rod 101, and the connecting rod 101 is arranged in parallel with the screen surface of the filter screen 102. The filter screen 102 can be rotated to cover the opening of the drainage ditch 1 under the driving of the connecting rod 101.

Referring to fig. 4 and 5, the connecting rod 101 is provided with an accommodating groove 11 along the length direction thereof, and the notch of the accommodating groove 11 faces the filter screen 102. When the filter screen 102 is inclined, the garbage intercepted on the upper surface of the filter screen 102 can slide into the accommodating groove 11.

Referring to fig. 4 and 5, the scraper 103 is located on the lower screen surface of the filter screen 102, and a guide block is fixedly connected to the lower screen surface of the filter screen 102, and the guide block is arranged in a T shape and is arranged along a direction perpendicular to the connecting rod 101. The scraper 103 is provided with a guide groove, and the guide block is connected in the guide groove in a sliding manner. The squeegees 103 are arranged in a direction parallel to the connecting rod 101.

Referring to fig. 4 and 5, a brush 12 is fixedly connected to a side wall of the scraper 103 facing the filter screen 102, and bristles of the brush 12 penetrate through meshes of the filter screen 102.

Referring to fig. 4 and 5, a first electric cylinder 13 is fixedly connected to the filter screen 102, and the first electric cylinder 13 is disposed in a direction perpendicular to the connecting rod 101. The piston rod of the first electric cylinder 13 is fixedly connected with the scraper 103, and the scraper 103 can reciprocate along the direction vertical to the connecting rod 101 under the driving of the first electric cylinder 13.

Referring to fig. 4 and 5, the first driving assembly includes a driving sprocket 1041, a driven sprocket 1042, and a chain 1043 rotatably engaged with the driving sprocket 1041 and the driven sprocket 1042. Wherein, the driving sprocket 1041 is rotatably connected to the sidewall of the drainage ditch 1, and the driven sprocket 1042 is fixedly connected to the connecting rod 101. A first driving motor 14 for driving the driving chain wheel 1041 to rotate is fixedly connected in the drainage ditch 1, and an output shaft of the first driving motor 14 is fixedly connected to a wheel shaft where the driving chain wheel 1041 is located.

Referring to fig. 4 and 5, the secondary filtering apparatus includes a rotation rod 151 rotatably connected to the drainage ditch 1, an intercepting screen cylinder 152 fixedly connected to the rotation rod 151, and a plurality of scraping hooks 153 provided on the intercepting screen cylinder 152.

Wherein, dwang 151 is cylindricly and sets up and along the length direction of escape canal 1, and interception filter screen section of thick bamboo 152 sets up along the length direction of escape canal 1, dwang 151 fixed connection in the both ends of interception filter screen section of thick bamboo 152.

Referring to fig. 4 and 5, 3 dirt inlet grooves 16 are formed in the intercepting filter cylinder 152, and each dirt inlet groove 16 is formed in a long strip shape and is arranged along the length direction of the intercepting filter cylinder 152. The 3 sewage inlet tanks 16 are arranged at equal intervals along the circumferential direction of the intercepting screen cylinder 152. The scraping hooks 153 are uniformly distributed on the inner and outer surfaces of the intercepting screen cylinder 152.

Referring to fig. 5 and 6, a pool opening plate 17 for sealing the pool opening of the clean water pool 7 is arranged on the upper cover of the clean water pool 7, a connecting shaft 18 is rotatably connected to the side wall of the clean water pool 7 far away from the drainage ditch 1, and the connecting shaft 18 is horizontally arranged along the side wall vertical to the clean water pool 7. The connecting shaft 18 is fixedly connected with a cleaning turntable 19, and the connecting shaft 18 is arranged along the direction vertical to the end face of the cleaning turntable 19.

Referring to fig. 4 and 6, a second driving assembly for driving the connecting shaft 18 to rotate is arranged in the clean water basin 7, and the second driving assembly comprises a first chain wheel 201, a second chain wheel 202 and a driving chain 203 which is meshed with the first chain wheel 201 and the second chain wheel 202 in a rotating manner. Wherein, the first chain wheel 201 is rotatably connected to the side wall of the clean water basin 7 far away from the drainage ditch 1, and the second chain wheel 202 is fixedly connected to the connecting shaft 18.

Referring to fig. 4 and 6, a second driving motor 21 is fixedly connected to the side wall of the clean water reservoir 7 far away from the drainage ditch 1, and an output shaft of the second driving motor 21 is fixedly connected to a rotating shaft on which the first chain wheel 201 is located.

Referring to fig. 7 and 8, the flocculation device is provided on a side wall of the cleaning turntable 19 facing the drainage ditch 1. The coagulant storage device comprises a containing box 22 and a coagulant placed in the containing box 22. Wherein the flocculating agent is ferric sulfate powder. The holding box 22 is arranged in a fan shape and is fixedly connected on the disc surface of the cleaning turntable 19. The side of the short side of the containing box 22 is cambered towards the center of the cleaning turntable 19. Hold and seted up a plurality of drain holes 23 on the cambered surface side of the short one side of box 22, drain hole 23 is cylindricly sets up and link up the inner chamber that holds box 22.

Referring to fig. 7 and 8, a baffle 24 is slidably connected to the containing box 22, the baffle 24 is an arc-shaped plate, and a convex surface of the baffle 24 slidably covers the discharging hole 23. The baffle 24 is fixedly connected with a guide projection, and the disc surface of the cleaning turntable 19 is provided with a guide sliding groove for the guide projection to slide.

Referring to fig. 7 and 8, a second electric cylinder 25 for driving the baffle plate 24 to move is hinged on the cleaning turntable 19, and a piston rod of the second electric cylinder 25 is hinged with one end of the baffle plate 24.

Referring to fig. 2 and 7, when the containing box 22 rotates to the upper part of the clean water reservoir 7 along with the cleaning turntable 19, the baffle plate 24 is moved by the second electric cylinder 25, so that the ferric sulfate powder in the containing box 22 falls into the clean water reservoir 7, and the effect of accelerating the precipitation of rainwater pollutants is achieved.

Referring to fig. 7 and 8, the sediment removal means includes a plurality of elastic bars 261 fixedly coupled to the side walls of the cleaning turntable 19, and arc plates 262 fixedly coupled to the elastic bars 261. The elastic rod 261 is disposed in a cylindrical shape and made of rubber, and the elastic rod 261 is disposed in a direction parallel to the disk surface of the cleaning turntable 19. The plurality of elastic rods 261 are arranged at equal intervals in the circumferential direction of the cleaning turntable 19.

Referring to fig. 7 and 8, the arc-shaped plate 262 is fixedly connected to one end of the elastic rod 261 facing away from the cleaning turntable 19, and the arc-shaped plate 262 is arranged in a central symmetry manner with the center of the cleaning turntable 19 as the center.

When the sediment in the clear water tank 7 needs to be cleared, the tank opening plate 17 is manually moved away, and when the arc-shaped plate 262 scoops up part of the sediment and rotates to the tank opening of the clear water tank 7, a cleaner manually clears the sediment in the arc-shaped plate 262.

Referring to fig. 2, the rainwater purification apparatus includes a blocking plate 271 detachably disposed in the sump 3, and a pebble layer 272 disposed in the sump 3. Wherein, baffle plate 271 passes through bolted connection in catch basin 3, and baffle plate 271 sets up along the horizontal direction. The blocking plate 271 is provided with a plurality of water outlet holes 28 penetrating through the plate surface of the blocking plate 271, the water outlet holes 28 are arranged in a serpentine shape along the vertical direction, and the caliber of one end of the water outlet hole 28 facing the pebble layer 272 is smaller than that of one end of the water outlet hole 28 facing away from the pebble layer 272.

Referring to fig. 2, a mounting net 29 is detachably coupled to the sump 3, and the mounting net 29 is disposed in a direction parallel to the blocking plate 271 and below the blocking plate 271. The pebble layer 272 is laid on the upper net surface of the installation net 29, and the water outlet of the water outlet pipe 9 in the water collecting tank 3 is positioned between the blocking plate 271 and the pebble layer 272.

Referring to fig. 2, a fastening device for fastening the pebble bed 272 is arranged in the water collecting tank 3, and the fastening assembly comprises a pressing net 30 and a pressing piece arranged on the pressing net 30. Wherein, the compaction net 30 is laid above the pebble layer 272 along the direction parallel to the blocking plate 271.

Referring to fig. 2, the pressing member includes a locking spring 31 and a locking bolt 32 rotatably connected to one end of the locking spring 31, the end of the locking spring 31 opposite to the locking bolt 32 is fixedly connected to the lower mesh surface of the pressing net 30, and the locking bolt 32 is in threaded connection with the bottom surface of the water collecting tank 3. The compression net 30 can be tensioned by the locking spring 31, so that the filter screen 6 can fasten the pebble bed 272, and the gap between adjacent pebbles is prevented from being enlarged.

When the locking spring 31 is installed, the installation net 29 is installed and fixed, then the pebble layer 272 is laid on the upper net surface of the installation net 29, at this time, the locking spring 31 and the locking bolt 32 penetrate through the pebble layer 272, so that the locking bolt 32 is in threaded connection with the bottom surface of the water collecting tank 3, and finally, the top end of the locking spring 31 is fixed with the pressing net 30.

The implementation principle of the embodiment is as follows: when rainwater falls into drainage ditch 1, it is earlier through filter screen 102 and interception filter screen cylinder 152 and realize preliminary filtration, later get into clean water basin 7 through inlet channel 8 in, through the input of flocculating agent with higher speed the sedimentation rate of pollutant in rainwater to drag for through deposiing clearing device, later the rainwater passes through outlet conduit 9 and gets into in the water catch bowl 3, and purifies the rainwater once more through pebble layer 272 and baffler 271, reaches the purpose of purifying the rainwater.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a town road initial stage rainwater collection device, includes escape canal (1), catch basin (3), its characterized in that: be provided with elementary filter equipment, secondary filter equipment in escape canal (1), secondary filter equipment is located elementary filter equipment's below, be provided with rainwater purifier in catch basin (3), it is equipped with clean water basin (7) to dig between escape canal (1) and catch basin (3), through connection has inlet channel (8) between clean water basin (7) and escape canal (1), through connection has outlet conduit (9) between clean water basin (7) and catch basin (3), it has clean carousel (19) to rotate in clean water basin (7), the quotation of clean carousel (19) is towards outlet conduit (9) mouth of pipe, be provided with flocculation device and sediment clearing device on clean carousel (19).

2. The municipal road initial rainwater collection device according to claim 1, wherein: the primary filtering device comprises a connecting rod (101) rotatably connected in a drainage ditch (1), a filter screen (102) fixedly connected on the connecting rod (101), a scraper (103) slidably connected on the filter screen (102), and a first driving component arranged in the drainage ditch (1) and used for driving the connecting rod (101) to rotate, wherein the connecting rod (101) is arranged along the length direction of the drainage ditch (1), the filter screen (102) can be rotatably shielded in an opening of the drainage ditch (1), an accommodating groove (11) is formed in the connecting rod (101) along the length direction of the connecting rod, a notch of the accommodating groove (11) faces the filter screen (102), a brush (12) is fixedly connected to the side wall of the scraper (103), bristles of the brush (12) penetrate through meshes of the filter screen (102), and a first electric cylinder (13) which is fixedly connected to the filter screen (102) and used for driving the scraper (103) to reciprocate along the direction perpendicular to the connecting rod (101), the first electric cylinder (13) is arranged along the direction perpendicular to the connecting rod (101).

3. The municipal road initial rainwater collection device according to claim 2, wherein: the first driving assembly comprises a driving chain wheel (1041) rotatably connected with the drainage ditch (1), a driven chain wheel (1042) fixedly connected with the connecting rod (101), and a chain (1043) rotatably meshed with the driving chain wheel (1041) and the driven chain wheel (1042), and a first driving motor (14) used for driving the driving chain wheel (1041) to rotate is fixedly connected with the drainage ditch (1).

4. The municipal road initial rainwater collection device according to claim 1, wherein: second grade filter equipment is including rotating dwang (151), fixed connection in escape canal (1) interception filter screen section of thick bamboo (152), a plurality of hook (153) of scraping that set up on interception filter screen section of thick bamboo (152), dwang (151) set up along the length direction of escape canal (1), interception filter screen section of thick bamboo (152) have been seted up along its length direction and have been advanced dirty groove (16), it is provided with a plurality ofly along the circumference of interception filter screen section of thick bamboo (152) to advance dirty groove (16), scrape the inside and outside surface of hook (153) equipartition in interception filter screen section of thick bamboo (152).

5. The municipal road initial rainwater collection device according to claim 1, wherein: the rainwater purification device comprises a blocking plate (271) which can be disassembled in the water collecting tank (3) and a pebble layer (272) which is arranged in the water collecting tank (3), the blocking plate (271) is arranged along the horizontal direction, a plurality of water outlet holes (28) penetrating through the plate surface of the blocking plate (271) are arranged on the blocking plate (271), the water outlet holes (28) are arranged in a snake shape along the vertical direction, the caliber of one end of the water outlet hole (28) facing the pebble bed (272) is smaller than that of the other end of the water outlet hole facing away from the pebble bed (272), the collecting tank (3) is detachably connected with a mounting net (29), the mounting net (29) is arranged along the direction parallel to the blocking plate (271) and is positioned below the blocking plate (271), a pebble layer (272) is paved on the upper net surface of the mounting net (29), and a water inlet of a water inlet pipeline (8) in the water collecting tank (3) is positioned between the blocking plate (271) and the pebble layer (272).

6. The municipal initial rainwater collection device according to claim 5, wherein: be provided with the fastener who is used for fastening cobble layer (272) in catch basin (3), fastening components compresses tightly the piece including compressing tightly net (30), setting on compressing tightly net (30), compress tightly the top that cobble layer (272) was laid in along the direction that is on a parallel with baffling board (271) in net (30), compress tightly the piece and include locking spring (31), rotate and connect in locking bolt (32) of locking spring (31) one end, locking spring (31) are the lower network face fixed connection of tip and compressing tightly net (30) of locking bolt (32) dorsad, the bottom surface threaded connection of locking bolt (32) and catch basin (3).

7. The municipal road initial rainwater collection device according to claim 1, wherein: the flocculation device is including holding box (22), placing the flocculating agent in holding box (22), hold box (22) fixed connection in clean carousel (19) towards escape canal (1) one side lateral wall, it is fan-shaped setting to hold box (22), hold box (22) and seted up drain hole (23) on the lateral wall at clean carousel (19) center towards, sliding connection has baffle (24) that are used for shutoff drain hole (23) on holding box (22), be provided with on clean carousel (19) and be used for driving electric jar two (25) that baffle (24) removed.

8. The municipal road initial rainwater collection device according to claim 1, wherein: sediment clearing device includes a plurality of fixed connection in elastic rod (261) on clean carousel (19) lateral wall, fixed connection in elastic rod (261) arc (262) of clean carousel (19) one end dorsad, elastic rod (261) set up along the quotation direction that is on a parallel with clean carousel (19).

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