CN212773210U - Comprehensive utilization system for rainwater on green building roof - Google Patents

Abstract

The application relates to the field of rainwater comprehensive utilization systems, and provides a green building roof rainwater comprehensive utilization system aiming at the problem that a rainwater collecting pipe in the rainwater comprehensive utilization system is easily blocked by leaves, which comprises a rainwater collecting tank obliquely arranged right below the edge of a roof, a rainwater collecting pipe communicated with the rainwater collecting tank, and a first filter screen arranged on the rainwater collecting pipe, the rainwater collecting tank is communicated with the rainwater collecting pipe, the water storage tank is communicated with the filtering and disinfecting tank, the rainwater collecting tank is provided with a notch with one end communicated with the rainwater collecting pipe, the top wall of the rainwater collecting pipe, which is close to the notch, is provided with a fixing shaft, the fixing shaft is provided with a cleaning assembly, the cleaning assembly comprises a shaft sleeve, which is sleeved outside the fixing shaft, a plurality of fixing plates and a first hairbrush, which is arranged on the fixing plates, wherein the shaft sleeve is fixed on the shaft sleeve, and when the first hairbrush rotates into the rainwater collecting tank. This application has the effect that reduces the condition that the leaf accumulational leads to the rainwater collecting pipe to block up on the filter screen.

Description

Comprehensive utilization system for rainwater on green building roof

Technical Field

The application relates to the technical field of rainwater collection and utilization, in particular to a comprehensive utilization system for rainwater on a green building roof.

Background

The green building is a building body which can save energy to the maximum extent in the life cycle of the building and can realize harmonious symbiosis of people and nature to the maximum extent, and comprises water resource saving, various resource saving and the like, wherein the water resource saving is an important embodiment of the green building. The water resource is an essential important resource for human survival, China is also a water-using big country, along with the continuous development of the urbanization process, the problem of urban water shortage is increasingly and obviously raised, the water saving resource is closely related to the future survival development of human beings, rainwater is used as a water resource with less pollution and less organic matter content, the water resource can be recycled after simple treatment, the comprehensive utilization of the rainwater is more and more emphasized by people, and the rainwater belonging to the roof of a house is cleaner and easier to treat than other rainwater, so a roof rainwater comprehensive utilization system is often configured in a green building, and the purpose of saving water resources is realized.

The traditional green building roof rainwater comprehensive utilization system comprises a rainwater collecting tank, a rainwater collecting pipe communicated with the rainwater collecting tank, a filter screen positioned at the joint of the rainwater collecting tank and the rainwater collecting pipe, a filtering and disinfecting tank communicated with the rainwater collecting pipe and a reservoir communicated with the filtering and disinfecting tank. Rainwater flows into the rainwater collecting tank through the roof, enters the rainwater collecting pipe through the filter screen, enters the filtering and disinfecting tank through the rainwater collecting pipe for filtering and disinfecting, and the disinfected rainwater flows into the water storage tank to be stored for later use.

To the correlation technique among the above-mentioned, because there is the leaf in the roof, green building roof rainwater integrated utilization system is when collecting the rainwater, the leaf on roof can flow into the rainwater collecting vat under the washing away of rainwater, finally collect on the filter screen, along with the increase of leaf, the filter screen is stopped up easily, lead to the rainwater can't get into through the rainwater collecting pipe through the filter screen and filter the disinfection pond, cause the unable performance function of green building roof rainwater integrated utilization system, the inventor thinks that current green building roof rainwater integrated utilization system has the roof leaf to gather in filter screen department easily, lead to the defect of stopping up the filter screen.

SUMMERY OF THE UTILITY MODEL

In order to reduce the roof leaf and gather the condition that leads to the unable rainwater to get into the filtration disinfection pond through the filter screen on the filter screen, the application provides a green building roof rainwater comprehensive utilization system.

The application provides a pair of green building roof rainwater integrated utilization system adopts following technical scheme:

a comprehensive utilization system for rainwater on a green building roof comprises a rainwater collecting tank which is obliquely arranged right below the edge of the roof, a rainwater collecting pipe communicated with one end of the rainwater collecting tank far away from the roof, a first filter screen arranged at the communication part of the rainwater collecting tank and the rainwater collecting pipe, a filtering and disinfecting tank communicated with one end of the rainwater collecting pipe far away from the rainwater collecting tank, and a reservoir communicated with the filtering and disinfecting tank, one end of the rainwater collecting tank communicated with the rainwater collecting pipe, which is far away from the roof, is provided with a notch, a fixed shaft is arranged on the top wall of one side of the rainwater collecting pipe close to the notch, a cleaning component is arranged on the fixed shaft, the cleaning component comprises a shaft sleeve sleeved outside the fixed shaft, a plurality of fixed plates fixed on the shaft sleeve and a first brush arranged on the fixed plates, when the first brush rotates into the rainwater collecting tank, the first brush is abutted with the first filter screen.

Through adopting above-mentioned technical scheme, after the rainwater on roof falls into the rainwater collecting vat, rainwater in the rainwater collecting vat flows to the junction of rainwater collecting vat and rainwater collecting pipe because of the action of gravity, rainwater strikes the fixed plate, make the fixed plate rotate and drive the leaf that first brush cleaned on to first filter screen, and remove the leaf outside first filter screen through the breach, be favorable to reducing the rainwater and collect the in-process, the leaf in rainwater is long-time to be gathered and is leaded to first filter screen jam on first filter screen, the rainwater can't get into the condition of filtering and disinfecting pond through first filter screen, be favorable to keeping the rainwater collecting pipe unblocked, make green building roof rainwater integrated utilization system can normal operating.

Preferably, the rainwater collecting pipe is far away from the outer wall fixedly connected with leaf collecting box on roof, the top end opening and the opening of leaf collecting box just face with arrange the outer first brush of rainwater collecting vat in.

By adopting the technical scheme, the leaves swept out by the first brush can be collected in the leaf collecting box, so that the leaves brushed out of the gap by the first brush can be collected, the leaves on the roof can be better intensively cleaned, and the difficulty in cleaning and sweeping the leaves can be reduced; meanwhile, the leaves swept by the first bristles are not easy to scatter to the ground, and the influence of the scattered leaves on pedestrians is favorably reduced.

Preferably, the leaf collecting box is provided with an opening at the bottom, and the bottom of the leaf collecting box is fixedly connected with a second filter screen covering the opening at the bottom.

By adopting the technical scheme, as the leaves swept by the brush contain rainwater, the volume of the leaf collecting box is limited, the rainwater can easily fall into the leaf collecting box for a long time, so that the leaf collecting box can not collect more leaves, and the rainwater in the leaves falling into the leaf collecting box is filtered through the arrangement of the second filter screen, so that the leaves falling into the leaf collecting box are not easy to contain moisture, and the leaves are not easy to rot and smell due to being soaked by the rainwater; simultaneously, be favorable to the leaf collecting box can collect more leaves.

Preferably, the bottom of the leaf collecting box is communicated with a connecting pipe, and one end, far away from the leaf collecting box, of the connecting pipe is communicated with a rainwater collecting pipe.

Through adopting above-mentioned technical scheme for the rainwater that filters off through the second filter screen passes through the connecting pipe and gets into the rainwater collecting pipe, gets into the sedimentation filtering pond through the rainwater collecting pipe again, is favorable to green building roof rainwater comprehensive utilization system to collect the rainwater better.

Preferably, the leaf collecting box is far away from the side wall opening of the rainwater collecting pipe, and a cover plate for opening and closing the side wall opening is arranged on the leaf collecting box.

Through adopting above-mentioned technical scheme, fill the leaf back in the leaf collecting box, the accessible is opened the apron and is cleared up the leaf in the leaf collecting box, is favorable to reducing because of the outer first brush of leaf collecting box top opening and rainwater collecting vat just to leading to being difficult to the condition of clearing up the leaf in the leaf collecting box, is favorable to clearing up the leaf in the leaf collecting box more conveniently.

Preferably, still be provided with the second brush on the inner wall of leaf collecting box, the second brush is including locating the second base on the leaf collecting box and locating the second brush hair on the second base, one side part that the second base was kept away from to the second brush hair stretches out the top to first filter screen.

Through adopting above-mentioned technical scheme, when the leaf on the first filter screen of first brush clearance, the leaf that is stained with the rainwater is attached to first brush easily, make the leaf that attaches to on the first brush by the clearance and make the leaf after the clearance can fall into the leaf collecting box through setting up of second brush, be favorable to reducing the condition that attaches to the leaf and influence the leaf on the first filter screen of first brush clearance on the first brush, make first brush can clear up the leaf that gathers on the first filter screen better.

Preferably, the second base is detachably connected to the leaf collecting box.

Through adopting above-mentioned technical scheme, when the second brush wearing and tearing back need be changed, only need change the second brush and need not change a whole leaf collecting box, be favorable to resources are saved.

Preferably, a plurality of the fixing plates are uniformly distributed around the circumference of the shaft sleeve.

Through adopting above-mentioned technical scheme for the density that cleans the subassembly is more even, thereby is favorable to fixed plate and first brush to last the rotation under the drive of rainwater, is favorable to reducing the condition that leads to cleaning the subassembly and be in a certain position all the time because of the density is uneven, makes the first leaf that cleans the subassembly and can clear up on the first filter screen better.

Preferably, the first brush is detachably coupled to the fixed plate.

Through adopting above-mentioned technical scheme, when first brush wearing and tearing back need be changed, only need change first brush and need not change a whole clean subassembly, be favorable to resources are saved.

Preferably, a third locking threaded hole is formed in the fixed shaft, a third locking bolt is in threaded connection with the third threaded hole, a shaft sleeve cover penetrates through the third locking bolt, and the shaft sleeve cover is abutted to the shaft sleeve when the third locking bolt is in threaded connection with the third locking threaded hole. The radius of the shaft sleeve cover is not smaller than that of the shaft sleeve.

Through adopting above-mentioned technical scheme, when first brush needs to be changed, can demolish the axle sleeve earlier and carry out the change of first brush again, be favorable to reducing because of the axle sleeve cover leads to the fixed plate to rotate easily on locating the fixed axle and is difficult to the condition of changing first brush.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cleaning assembly is arranged on the rainwater collecting pipe, and the fixing plate is impacted by rainwater, so that the fixing rod rotates and drives the first brush on the fixing plate to clean leaves attached to the first filter screen, the blockage of the first filter screen is favorably reduced, and rainwater collected by the rainwater collecting tank can more smoothly enter the rainwater collecting pipe through the first filter screen and then enter the filtering and disinfecting tank through the rainwater collecting pipe;

2. the side wall of the rainwater collecting pipe, which is far away from the wall body, is provided with the leaf collecting box, so that the leaves swept out by the first brush can fall into the leaf collecting box, and the difficulty in cleaning the leaves swept out by the cleaning assembly is favorably reduced;

3. the connecting pipe is communicated with the bottom opening of the leaf collecting box, the other end of the leaf collecting box is far away from the connecting pipe, and the connecting pipe is communicated with the rainwater collecting pipe, so that rainwater filtered by the second filter screen can enter the filtering and disinfecting tank through the rainwater collecting pipe, and the rainwater waste can be reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of a comprehensive utilization system for rainwater on a green building roof according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

FIG. 3 is an enlarged schematic view of section B of FIG. 2;

FIG. 4 is a schematic diagram of an internal structure of a comprehensive utilization system for rainwater on a green building roof according to an embodiment of the present application;

FIG. 5 is an enlarged schematic view of section C of FIG. 4;

FIG. 6 is an enlarged schematic view of section D of FIG. 5;

fig. 7 is an enlarged schematic view of a portion E in fig. 5.

Description of reference numerals: 1. a ground surface; 11. installing a pit; 2. a room; 21. a roof; 22. connecting columns; 3. a rainwater collection tank; 31. a sweeping assembly; 311. a shaft sleeve; 312. a fixing plate; 313. a first brush; 3131. a first base; 3132. a first bristle; 314. a first locking bolt; 32. a fixed shaft; 33. a shaft sleeve cover; 34. a third locking bolt; 4. a rainwater collecting pipe; 40. a first filter screen; 41. a leaf collecting box; 42. a connecting pipe; 43. a cover plate; 44. an articulation member; 45. a fastener; 451. a second fixed seat; 452. a second movable slot; 453. a first fixed seat; 454. a first movable slot; 455. a slide bar; 46. a second filter screen; 47. a second brush; 471. a second base; 472. a second bristle; 48. a second locking bolt; 5. a filtering and disinfecting tank; 6. and (7) a water reservoir.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Referring to fig. 1 and 2, the embodiment of the application discloses a comprehensive utilization system for rainwater on a green building roof. Including a plurality of spliced poles 22 of fixed connection in the outer wall of room 2, the one end fixedly connected with rainwater collecting vat 3 of 2 outer walls in room is kept away from to a plurality of spliced poles 22, and rainwater collecting vat 3 is just right with the border of roof 21, and rainwater collecting vat 3 intercommunication has rainwater collecting pipe 4. Referring to fig. 4 and 5, the communicating part of the rainwater collecting tank 3 and the rainwater collecting pipe 4 is further provided with a first filter screen 40 and a cleaning assembly 31 for cleaning the first filter screen 40, the green building roof rainwater comprehensive utilization system further comprises an installation pit 11 recessed in the ground 1, a filtering and disinfecting tank 5 and a water reservoir 6 communicated with the filtering and disinfecting tank 5 are arranged in the installation pit 11, and the rainwater collecting pipe 4 is communicated with the filtering and disinfecting tank 5.

Referring to fig. 1 and 2, the rainwater collection tank 3 is disposed from one end close to the roof 21 to one end far away from the roof 21, and the rainwater collection pipe 4 is communicated with one end of the rainwater collection tank 3 far away from the roof 21. One end of the rainwater collection tank 3, which is far away from the roof 21, is further provided with a notch (not marked in the figure), and the notch is positioned on the side wall of the rainwater collection tank 3, which is far away from the outer wall of the house 2.

Referring to fig. 4 and 5, the first strainer 40 is fixed to an end of the rainwater collection pipe 4 near the rainwater collection tank 3. The side wall of the rainwater collecting pipe 4 far away from the outer wall of the house 2 is fixedly connected with a fixed shaft 32. The cleaning assembly 31 includes a sleeve 311 disposed outside the fixed shaft 32, a fixed plate 312 fixed on the sleeve 311, and a first brush 313 fixed on the fixed plate 312, wherein when the sleeve 311 is disposed on the fixed shaft 32, an inner sidewall of the sleeve 311 abuts against an outer sidewall of the fixed shaft 32. In the present embodiment, six fixing plates 312 are provided, the six fixing plates 312 are uniformly distributed around the circumferential direction of the shaft sleeve 311, the fixing plate 312 has a rectangular parallelepiped shape, the length direction of the fixing plate 312 coincides with the axial direction of the fixing shaft 32, and one side of the fixing plate 312 in the width direction is integrally connected to the shaft sleeve 311.

Referring to fig. 5 and 6, the first brush 313 includes a first base 3131 detachably connected to the fixing plate 312 and first bristles 3132 fixed to the first base 3131. The first base 3131 has first through holes (not shown), the fixing plate 312 has first locking screw holes (not shown) recessed at an end thereof adjacent to the first filter screen 40 in the longitudinal direction, the first locking screw holes are in threaded connection with first locking bolts 314, in this embodiment, six first base 3131 corresponding to the fixing plate 312 are provided, two first through holes are provided in each first base 3131, the two first through holes are respectively located at both ends of the first base 3131 in the longitudinal direction and are symmetrical with respect to the central position of the first base 3131 in the longitudinal direction, the number of the first locking screw holes corresponding to the first through holes is two, and when the first brush 313 is fixed to the fixing plate 312, the first locking bolts 314 pass through the first through holes and are in threaded connection with the first locking screw holes. When the first brush 313 rotates into the rainwater collection tank 3, the first brush 313 abuts against the first filter 40.

Referring to fig. 5 and 7, a third locking threaded hole (not shown) is further recessed at one end of the fixing shaft 32, which is far away from the rainwater collection pipe 4, the third locking threaded hole is in threaded connection with a third locking bolt 34, a bushing cover 33 is further sleeved on the third locking bolt 34, and when the third locking threaded hole is in threaded connection with the third locking bolt 34, the bushing cover 33 is abutted to one side, which is far away from the rainwater collection pipe 4, of the bushing 311. The radius of the boss cover 33 coincides with the radius of the boss 311.

Referring to fig. 2 and 3, a leaf collecting box 41 is further fixedly connected to an outer side wall of one side of the rainwater collecting pipe 4 away from the room 2, and the leaf collecting box 41 is opposite to the first brush 313 arranged outside the rainwater collecting tank 3. Referring to fig. 5 and 6, the bottom of the leaf collection box 41 is open, and a second filter screen 46 covering the bottom opening is fixedly connected to the bottom of the leaf collection box 41. Referring to fig. 2 and 3, the leaf collection box 41 has a side wall opening on a side away from the rainwater collection pipe 4, the leaf collection box 41 further includes a cover plate 43 for opening and closing the side wall opening, and the cover plate 43 is in a rectangular plate shape. One end of the cover plate 43 along the length direction is fixedly connected with a hinge 44, in this embodiment, the hinge 44 is provided with two, one end of the hinge 44 far away from the cover plate 43 is fixedly connected with the leaf collecting box 41, in this embodiment, the hinge 44 is a hinge, a latch 45 for fixing the position of the baffle is further arranged on the leaf collecting box, and the latch 45 comprises a first fixed seat 453 fixedly connected to the cover plate 43, a first movable groove 454 sunk on the first fixed seat 453, a sliding rod 455 slidably connected in the first movable groove 454, a second fixed seat 451 fixedly connected to the leaf collecting box 41, and a second movable groove 452 sunk on the second fixed seat 451. When the cover plate 43 closes the side wall opening of the leaf collection box 41, the first movable groove 454 is opposite to the second movable groove 452, and the sliding bar 455 is opposite to the second movable groove 452.

Referring to fig. 5 and 6, the inner wall of the leaf collecting box 41 close to the rainwater collecting pipe 4 is also detachably connected with a second brush 47, the second brush 47 includes a second base 471 detachably connected to the inner wall of the leaf collecting box 41 and a second brush 472 fixedly connected to the second base 471, in this embodiment, the second base 471 is a cuboid, second through holes (not marked in the figure) are formed in both ends of the second base 471 in the length direction, a second locking threaded hole (not marked in the figure) is recessed in the inner wall of the leaf collecting box 41 close to one side of the rainwater collecting pipe 4, and the second locking threaded hole is in threaded connection with a second locking bolt 48. In this embodiment, there are two second through holes, the two second through holes are located at two ends of the second base 471 along the length direction and are symmetrical with respect to the center of the second base 471 along the length direction, two second locking threaded holes are provided corresponding to the through holes, and when the second brush 47 is fixed on the leaf collecting box 41, the second locking bolt 48 passes through the second through holes and is in threaded connection with the second locking threaded holes. A side of the second brush 472 far from the second base 471 partially extends to the top end of the first filter screen 40.

Referring to fig. 4 and 5, the bottom of the leaf collecting box 41 is communicated with a communicating pipe 42, one end of the communicating pipe 42 away from the leaf collecting box 41 is communicated with the rainwater collecting pipe 4, and the communicating pipe 42 is arranged from one end close to the leaf collecting box 41 to one end close to the rainwater collecting pipe 4 in an inclined and downward manner.

The implementation principle of the comprehensive utilization system for the rainwater on the roof of the green building in the embodiment of the application is as follows: when rainwater containing leaves on the roof 21 flows into the rainwater collecting tank 3, due to the inclined arrangement of the rainwater collecting tank 3, the rainwater in the rainwater collecting tank 3 containing the leaves flows to the joint of the rainwater collecting tank 3 and the rainwater collecting pipe 4 through gravity, the rainwater enters the rainwater collecting pipe 4 through the first filter screen 40 and then enters the filtering and disinfecting tank 5 through the rainwater collecting pipe 4 for treatment, and the treated rainwater flows into the reservoir 6; meanwhile, the leaves in the rainwater can not pass through the first filter screen 40 and are accumulated on the first filter screen 40, because the rainwater impacts the fixing plate 312 to enable the fixing plate 312 to rotate, and meanwhile, the first brush 313 is driven to rotate, so that the leaves on the first filter screen 40 are cleaned by the first brush 313, the leaves on the first filter screen 40 are swept out of the notch by the first brush 313, so that the leaves are not easy to accumulate on the first filter screen 40, the rainwater collection process can be favorably reduced, because the leaves are accumulated on the first filter screen 40, the first filter screen 40 is blocked, the subsequent rainwater can not enter the rainwater collecting pipe 4, and the rainwater can more smoothly enter the filtering and disinfecting pool 5 through the rainwater collecting pipe 4.

Through the setting of leaf collecting box 41 for the leaf that is swept away by first brush 313 can fall into in the leaf collecting box 41, makes the leaf can be concentrated better, is favorable to reducing the degree of difficulty of the leaf that the first brush 313 of later stage clearance was swept away.

Because the leaves swept into the leaf collecting box 41 contain part of rainwater, the volume of the leaf collecting box 41 is limited, the rainwater can fall into the leaf collecting box 41 for a long time, so that the leaf collecting box 41 can not collect more leaves easily, and the rainwater contained in the leaves falling into the leaf collecting box 41 can be filtered through the arrangement of the second filter screen 46, so that the leaf collecting box 41 can collect more leaves, and the frequency of cleaning the leaf collecting box 41 is reduced; meanwhile, the leaves are not easy to be soaked by rainwater, and the situation that the leaves are soaked by rainwater to cause rottenness and emit odor is favorably reduced.

The one end through connecting pipe 42 is linked together with leaf collecting box 41 bottom, and the one end that leaf collecting box 41 was kept away from to connecting pipe 42 is linked together with rainwater collecting pipe 4 for the rainwater that is filtered by second filter screen 46 can flow in filtration disinfection pond 5 through rainwater collecting pipe 4, is favorable to improving green building roof rainwater integrated utilization system's rainwater collection efficiency.

The top opening of the leaf collecting box 41 is opposite to the first brush 313 outside the rainwater collecting groove 3, so that the leaves in the leaf collecting box 41 are difficult to clean. The cover plate 43 and the leaf collecting box 41 body are connected through the hinge 44 and the cover plate 43 and the leaf collecting box 41 are connected through the lock catch piece 45, so that the opening and closing of the side wall opening of the leaf collecting box 41 can be realized through the lock catch piece 45, the leaves in the leaf collecting box 41 can be cleaned through the side wall opening of the leaf collecting box 41, and the difficulty of cleaning the leaves in the leaf collecting box 41 is reduced.

Since the first brush 313 is easy to attach to the leaves on the first brush 3132 in the process of cleaning the leaves, the leaves attached to the first brush 3132 can be cleaned and fall into the leaf collection box 41 by the arrangement of the second brush 47, so that the first brush 313 can better clean the leaves on the first filter screen 40.

Through the arrangement of the first locking bolt 314 penetrating through the through hole on the first base 3131 and being in threaded connection with the fixing plate 312, when the first brush 313 is worn, only the first brush 313 needs to be replaced, and the whole cleaning assembly 31 does not need to be replaced, which is beneficial to saving resources.

When first brush 313 needs to be changed, because axle sleeve 311 rotates and connects on fixed axle 32, when changing, axle sleeve 311 rotates easily, leads to changing the degree of difficulty great, runs through the setting of third through-hole and fixed axle 32 threaded connection that covers in axle sleeve 311 through third locking bolt 34 for when first brush 313 needs to be changed, can demolish axle sleeve 311 earlier and carry out the change of first brush 313 again, be favorable to reducing the degree of difficulty of changing first brush 313.

Through the arrangement that the second locking bolt 48 penetrates through the through hole in the second base 471 and is in threaded connection with the inner wall of the leaf collecting box 41, when the second brush 47 is worn and needs to be replaced, only the second brush 47 needs to be replaced, and the whole leaf collecting box 41 does not need to be replaced, so that resources are saved.

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 (10)

1. The utility model provides a green building roof rainwater integrated utilization system, set up rainwater collecting tank (3) under roof (21) border including the slope, keep away from rainwater collecting pipe (4) of roof (21) one end intercommunication with rainwater collecting tank (3), set up at first filter screen (40) of rainwater collecting tank (3) and rainwater collecting pipe (4) intercommunication department, keep away from filtration disinfection pond (5) of the one end intercommunication of rainwater collecting tank (3) and with rainwater collecting pipe (4) and with cistern (6) of filtration disinfection pond (5) intercommunication, its characterized in that: one side of roof (21) is kept away from with the one end of the intercommunication of rainwater collecting vat (3) and rainwater collecting pipe (4) is opened jaggedly, rainwater collecting pipe (4) are close to and are equipped with fixed axle (32) on the roof of breach one side, be equipped with on fixed axle (32) and clean subassembly (31), clean subassembly (31) including the cover locate fixed axle (32) outer axle sleeve (311), be fixed in a plurality of fixed plates (312) on axle sleeve (311) and locate first brush (313) on fixed plate (312), work as when first brush (313) are changeed to rainwater collecting vat (3), first brush (313) and first filter screen (40) butt.

2. The comprehensive utilization system of rainwater on green building roof as claimed in claim 1, wherein: the rainwater collecting pipe (4) is far away from the outer wall of the roof (21) and is fixedly connected with a leaf collecting box (41), and the top end of the leaf collecting box (41) is opened and is just opposite to a first brush (313) arranged outside the rainwater collecting tank (3).

3. The comprehensive utilization system of rainwater on green building roof as claimed in claim 2, wherein: the leaf collecting box (41) is provided with an opening at the bottom, and the bottom of the leaf collecting box (41) is also fixedly connected with a second filter screen (46) covering the opening at the bottom.

4. The comprehensive utilization system of rainwater on green building roof as claimed in claim 3, wherein: the bottom of the leaf collecting box (41) is communicated with a connecting pipe (42), and one end, far away from the leaf collecting box (41), of the connecting pipe (42) is communicated with the rainwater collecting pipe (4).

5. The comprehensive utilization system of rainwater on green building roof as claimed in claim 4, wherein: the leaf collecting box (41) is far away from the side wall opening of the rainwater collecting pipe (4), and a cover plate (43) for opening and closing the side wall opening is arranged on the leaf collecting box (41).

6. The comprehensive utilization system of rainwater on green building roof as claimed in claim 2, wherein: still be provided with second brush (47) on the inner wall of leaf collecting box (41), second brush (47) are including locating second base (471) on leaf collecting box (41) and locating second brush hair (472) on second base (471), one side part that second base (471) was kept away from in second brush hair (472) stretches out to the top of first filter screen (40).

7. The comprehensive utilization system of rainwater on green building roof as claimed in claim 6, wherein: the second base (471) is detachably connected to the leaf collecting box (41).

8. The comprehensive utilization system of rainwater on green building roof as claimed in claim 1, wherein: the fixing plates (312) are uniformly distributed around the circumference of the shaft sleeve (311).

9. The comprehensive utilization system of rainwater on green building roof as claimed in claim 1, wherein: the first brush (313) is detachably connected to the fixing plate (312).

10. The comprehensive utilization system of rainwater on green building roof as claimed in claim 9, wherein: the novel bearing is characterized in that a third locking threaded hole is formed in the fixed shaft (32), a third locking bolt (34) is connected to the third locking threaded hole in a threaded mode, a shaft sleeve cover (33) penetrates through the third locking bolt (34), the shaft sleeve cover (33) is connected with the shaft sleeve (311) in a threaded mode when the third locking bolt (34) is connected with the third locking threaded hole in a threaded mode, and the radius of the shaft sleeve cover (33) is not smaller than that of the shaft sleeve (311).

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