CN113463847A

CN113463847A - Green roof of planting

Info

Publication number: CN113463847A
Application number: CN202110561264.4A
Authority: CN
Inventors: 钱军锋; 刘以荣; 叶谦; 王嶷懿; 楼双燕
Original assignee: Wuxi Zhuosheng Construction Co ltd
Current assignee: Wuxi Zhuosheng Construction Co ltd
Priority date: 2021-05-22
Filing date: 2021-05-22
Publication date: 2021-10-01

Abstract

The application relates to a green plant roof, which comprises a roof, a planting box, a rainwater box and a spraying device, wherein the planting box and the rainwater box are arranged on the roof, a circumferential closed baffle is arranged in the planting box, the side wall of the circumferential closed baffle is arranged at a distance from the side wall of the planting box, planting soil is laid between the side wall of the circumferential closed baffle and the side wall of the planting box, green plants are planted on the planting soil, the spraying device comprises a water pump and a water pumping pipe, the hose, the shower, switching pipe and first motor, the water pump sets up on the roof, the rainwater case is connected to the one end of drinking-water pipe, the water pump is connected to the other end, the water pump is connected to the one end of hose, the switching pipe is connected to the other end, the switching pipe sets up on circumference closure flap, first motor sets up in circumference closure flap, the one end and the first motor of shower are connected, the other end rotates with the switching pipe to be connected, be equipped with the apopore on the shower, the apopore lies in the planting soil top in vertical direction. The problem of unable collection rainwater, extravagant rainwater resource has been improved in this application.

Description

Green roof of planting

Technical Field

The application relates to the field of roof construction, in particular to a green roof of planting.

Background

The green plant roof is a building roof which is formed in recent years, and plants are planted on the building roof, so that the environment can be beautified, the air quality of the building roof is improved, and the plants can be used as shelters to protect the building roof.

Chinese patent No. CN200941766 discloses a roof greening structure, which comprises a roof and a containing bag, wherein the roof is coated or paved with a permeation-proof layer to prevent roots and stems of plants and water from damaging the roof, the containing bag is filled with plant growth materials, water absorption materials and plant seeds, the plant growth materials provide nutrients for the plants, the water absorption materials can store water in the bag after being saturated with water for providing water for the plants, and a plurality of containing bags filled with the plant growth materials, the water absorption materials and the plant seeds are flatly paved on the roof. Because the water and the plant growing materials exist in the containing bag, the plant seeds root and sprout in the containing bag and penetrate out of the containing bag to continue growing, and the whole roof is greened.

In view of the above-mentioned related arts, the inventor believes that when plant seeds grow into green plants on a roof, the plant seeds can only be irrigated with rainwater poured onto the green plants when raining, and the roof greening structure cannot collect rainwater, which results in waste of rainwater resources.

Disclosure of Invention

In order to improve the problem of extravagant rainwater resource, this application provides a green roof of planting.

The application provides a green roof of planting adopts following technical scheme:

a green plant roof comprises a roof, a planting box, a rainwater box and a spraying device, wherein the planting box and the rainwater box are arranged on the roof, a circumferential closed baffle is arranged in the planting box, the side wall of the circumferential closed baffle is arranged at a distance from the side wall of the planting box, planting soil is laid between the side wall of the circumferential closed baffle and the side wall of the planting box, green plants are planted on the planting soil, the spraying device comprises a water pump and a water pumping pipe, the hose, the shower, switching pipe and first motor, the water pump sets up on the roof, the rainwater case is connected to the one end of drinking-water pipe, the water pump is connected to the other end, the water pump is connected to the one end of hose, the switching pipe is connected to the other end, the switching pipe sets up on circumference closure flap, first motor sets up in circumference closure flap, the one end and the first motor of shower are connected, the other end rotates with the switching pipe to be connected, be equipped with the apopore on the shower, the apopore lies in the planting soil top in vertical direction.

Through adopting above-mentioned technical scheme, when raining, the rainwater waters and falls on green planting, can water green planting, the rainwater can be collected to the rainwater tank on the roof, when green planting needs to be watered in fine day, start water pump and first motor simultaneously, the rainwater extraction in the rainwater tank is with the water pump to the water pump, the rainwater passes through the drinking-water pipe in proper order, the hose, switching pipe and shower, the rainwater that enters into in the shower discharges through the apopore again, meanwhile, first motor drive shower rotates, thereby make the shower rotate when spraying, plant more evenly of watering green, a rainwater that is used for watering green planting comes from the rainwater that the rainwater tank collected, can not cause the waste of rainwater resource, carry out rational utilization to rainwater resource.

Optionally, the hose is detachably connected with the adapter tube.

Through adopting above-mentioned technical scheme, when green planting in need not watering, can accomodate hose and switching pipe split to suitable position with the hose, avoid the hose to be dragged out, influence the clean and tidy degree of roof environment, also avoided hose and switching union coupling together, influence the green ornamental effect of planting.

Optionally, the switching pipe can be dismantled with circumference closure baffle and be connected, the shower includes inner tube and urceolus, and the switching pipe rotates to be connected in the nozzle department of inner tube, and the inner tube can be dismantled and connect in the urceolus, and the urceolus is connected with first motor, and the apopore sets up on inner tube and urceolus, apopore on the inner tube and the apopore on the urceolus intercommunication.

Through adopting above-mentioned technical scheme, when watering green planting, the rainwater enters into the inner tube through the switching pipe in, apopore on the rethread inner tube and the apopore on the urceolus are discharged, realize the green purpose of planting of watering, when not needing watering green planting, dismantle the inner tube from the urceolus, dismantle the switching pipe from circumference closure flap, with the inner tube, switching pipe and hose are removed together, avoid the inner tube, the switching pipe, the hose is located the same position on roof with planting the case, make green planting around seem comparatively chaotic.

Optionally, the outer side wall of the inner barrel is provided with a positioning strip, the inner side wall of the outer barrel is provided with a positioning groove, and the positioning strip is inserted into the positioning groove.

By adopting the technical scheme, the first motor drives the outer barrel to rotate under the working state, the outer barrel drives the inner barrel to rotate through the matching of the positioning strips and the positioning grooves in the rotating process, so that the purpose of synchronous rotation of the inner barrel and the outer barrel is realized, the water outlet hole in the inner barrel and the water outlet hole in the outer barrel are prevented from being staggered, and rainwater in the inner barrel cannot be discharged; when split inner tube and urceolus, dismantle the back with the switching pipe from circumference closure baffle, through switching pipe pulling inner tube, the location strip separates along the constant head tank, until location strip and constant head tank separation to realize the split of inner tube and urceolus.

Optionally, the rainwater planting box further comprises a recycling box, the recycling box is arranged on the roof, the planting box is arranged on the recycling box, the bottom of the planting box is located above a box opening of the recycling box, a drain hole is formed in the bottom of the planting box, and the recycling box is connected with the rainwater box through a communicating pipe.

Through adopting above-mentioned technical scheme, when raining, if the rainfall is great, it is more to water the rainwater of planting green, the rainwater can infiltrate in planting soil, in the collection box was arranged into to the rethread wash port, rainwater in the collection box can enter into the rainwater box through communicating pipe, on the one hand, can avoid planting the moisture in the soil too much, influence green planting growth, on the other hand, can realize the recovery of unnecessary moisture, the water of recovery can also be used for watering green planting again, resources are saved.

Optionally, the circumference closed baffle is the annular, and the partial wash port of planting the bottom of the case portion is located circumference closed baffle inside below, is equipped with the non-woven fabrics in the hole of permeating water and being used for sheltering from the hole of permeating water on the circumference closed baffle.

Through adopting above-mentioned technical scheme, the non-woven fabrics uses with the hole cooperation of permeating water, on the one hand, can improve the gas permeability of planting soil, and on the other hand can conveniently plant the quick discharge of interior unnecessary moisture of soil, and the partial wash port of planting the bottom of the case portion is located circumference closure flap inside below, consequently, enters into the inside rainwater of circumference closure flap also can flow into the collection box, can not deposit inside circumference closure flap.

Optionally, be equipped with the filter in the rainwater case, the filter includes first filter and second filter, the length of first filter and the length of second filter all are less than the length of rainwater case, first filter and second filter all with rainwater case sliding fit, be connected with first rack on the first filter, be connected with the second rack on the second filter, it is connected with the pivot to rotate on the rainwater case lateral wall, be equipped with the gear in the pivot, first rack and second rack are located the both sides of gear, first rack and second rack all with gear engagement, the one end of rainwater case is contradicted to first filter, the other end of rainwater case is contradicted to the second filter.

Through adopting above-mentioned technical scheme, on the one hand, the filter can filter the impurity in the rainwater, on the other hand, when the water yield in the rainwater case is observed to needs, the rotation pivot, the pivot drives gear revolve, the gear drives first rack and second rack and moves towards opposite direction at the rotation in-process, first rack drives first filter and removes, the second rack drives the second filter and removes, first filter moves towards opposite direction with the second filter, the interval appears between first filter and the rainwater case tip, the interval appears between second filter and the rainwater case tip, the water yield in the rainwater case is observed to the person of facilitating the use.

Optionally, be equipped with first logical groove and the second logical groove of sliding on the rainwater tank lateral wall, first filter is kept away from and is equipped with first glide plate on the lateral wall of second filter one side, first glide plate runs through first logical groove of sliding and leads to groove sliding fit with first sliding, the second filter is kept away from and is equipped with the second glide plate on the lateral wall of first filter one side, the second glide plate runs through the second and slides logical groove and lead to groove sliding fit with the second sliding, first rack setting is on the part that first glide plate is located the rainwater tank outside, the second rack setting is on the part that the second glide plate is located the rainwater tank outside, the gear is located the rainwater tank outside.

Through adopting above-mentioned technical scheme, first slide setting is on the lateral wall that second filter one side was kept away from to first filter, the second slide setting is kept away from on the lateral wall of first filter one side at the second filter, can make and obtain great distance between first slide and the second slide, the gear, first rack and second rack are located between first slide and the second slide, and with the gear, first rack and second rack are located and compare between first filter and the second filter, can reduce the distance between first filter and the second filter, it is too big to avoid the distance between first filter and the second filter, there is impurity to enter into in the rainwater case through between first filter and the second filter.

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

1. when raining, rainwater is poured on green plants and can be used for watering the green plants, a rainwater tank on a roof can collect rainwater, when the green plants need to be watered on a sunny day, a water pump and a first motor are started simultaneously, the rainwater in the rainwater tank is extracted by the water pump, the rainwater sequentially passes through a water pumping pipe, a hose, a switching pipe and a spraying pipe, the rainwater entering the spraying pipe is discharged through a water outlet hole, meanwhile, the spraying pipe is driven by the first motor to rotate, so that the spraying pipe rotates while spraying, the green plants are watered more uniformly, the rainwater used for watering the green plants comes from the rainwater collected by the rainwater tank, the waste of rainwater resources is avoided, and the rainwater resources are reasonably utilized;

2. when green plants do not need to be irrigated, the hose and the adapter tube can be detached, the hose is stored to a proper position, the hose is prevented from being pulled out, the cleanness of the roof environment is prevented from being influenced, and the ornamental effect of the green plants is also prevented from being influenced due to the fact that the hose and the adapter tube are connected together;

3. when raining, if the rainfall is great, it is more to water the rainwater on green planting, and the rainwater can infiltrate in planting soil, and in the collection box was arranged into to the rethread wash port, rainwater in the collection box can enter into the rainwater case through communicating pipe, on the one hand, can avoid planting the moisture in the soil too much, influences green planting and grows, and on the other hand can realize the recovery of unnecessary moisture, and the water of recovery can also be reused to water green planting, resources are saved.

Drawings

Fig. 1 is a schematic structural diagram for embodying a green plant roof in the embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying the spraying device in the embodiment of the present application.

Fig. 3 is a schematic structural diagram for showing a positional relationship between the first filter plate and the second filter plate in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for showing a positional relationship between the first rack and the second rack in the embodiment of the present application.

FIG. 5 is a schematic structural diagram for showing a positional relationship between the positioning strip and the inner cylinder in the embodiment of the present application.

Fig. 6 is an enlarged view of a portion a of fig. 1 for showing a positional relationship between the positioning groove and the outer cylinder.

Description of reference numerals: 1. a roof; 2. a recycling bin; 3. planting boxes; 4. a rain tank; 5. a drain hole; 6. a communicating pipe; 7. a circumferential sealing baffle; 8. water permeable holes; 9. non-woven fabrics; 10. geotextile; 11. planting soil; 12. planting green; 13. a first filter plate; 14. a second filter plate; 15. a first slide plate; 16. a first sliding through groove; 17. a second slide plate; 18. a second sliding through groove; 19. a first rack; 20. a second rack; 21. a rotating shaft; 22. a gear; 23. a machine base; 24. a second motor; 25. a water pump; 26. a water pumping pipe; 27. a hose; 28. a shower pipe; 29. a transfer tube; 30. a first motor; 31. a support frame; 32. a hoop sheet; 33. hooping; 34. an inner barrel; 35. an outer cylinder; 36. a positioning bar; 37. positioning a groove; 38. a turntable; 39. and (7) water outlet holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses green roof of planting. Referring to fig. 1, the green vegetation roof includes a roof 1, a recovery tank 2, a planting tank 3, a rainwater tank 4, and a spray device.

Referring to fig. 1 and 2, collection box 2 and rainwater case 4 all set up on roof 1, it is the tube-shape to plant case 3 and collection box 2, it connects on collection box 2 to plant case 3, it is located 2 case mouths of collection box top in 3 bottoms of collection box, it is equipped with wash port 5 to plant 3 bottoms of case, so that realize planting the intercommunication between case 3 and the collection box 2, be connected through communicating pipe 6 between collection box 2 and the rainwater case 4, so that realize the intercommunication between collection box 2 and the rainwater case 4, and is concrete, one side that collection box 2 lateral wall is close to collection box 2 bottom is connected to the one end of communicating pipe 6, one side that rainwater case 4 lateral wall is close to rainwater case 4 bottom is connected to the other end of communicating pipe 6.

Referring to fig. 1 and 2, a circumferential closed baffle 7 is connected in the planting box 3, the circumferential closed baffle 7 is annular, the center line of the circumferential closed baffle 7, the central line of planting case 3 and the coincidence of the central line of collection box 2, the partial wash port 5 of 3 bottoms of planting case is located the inside below of circumference closure flap 7, circumference closure flap 7 lateral wall sets up with 3 lateral wall intervals of planting case, be equipped with on the circumference closure flap 7 and permeate water hole 8 and be used for sheltering from the non-woven fabrics 9 of permeating water hole 8, non-woven fabrics 9 passes through the screw connection on circumference closure flap 7, non-woven fabrics 9 is located between circumference closure flap 7 and the 3 lateral walls of planting case, from bottom to top has laid geotechnological cloth 10 and planting soil 11 in proper order between 7 lateral walls of circumference closure flap and the 3 lateral walls of planting case, geotechnological cloth 10 is the annular, geotechnological cloth 10 is laid in planting 3 bottoms, it has green 12 to plant on planting soil 11.

Referring to fig. 1 and 3, a filter plate is arranged in the raintank 4, the filter plate comprises a first filter plate 13 and a second filter plate 14, the sizes of filter holes on the first filter plate 13 and filter holes on the second filter plate 14 are equal, the length of the first filter plate 13 and the length of the second filter plate 14 are both smaller than the length of the raintank 4, the first filter plate 13 and the second filter plate 14 are both in sliding fit with the raintank 4, the first filter plate 13 is abutted against one end of the raintank 4, the second filter plate 14 is abutted against the other end of the raintank 4, a first sliding through groove 16 and a second sliding through groove 18 are arranged on two opposite side walls on the raintank 4, the length direction of the first sliding through groove 16, the length direction of the second sliding through groove 18 and the length direction of the raintank 4 are the same, a first sliding plate 15 is connected on the side wall of the first filter plate 13 far away from the second filter plate 14, the first sliding plate 15 penetrates through the first sliding through groove 16 and is in sliding fit with the first sliding through groove 16, the side wall of the second filter plate 14 far away from the first filter plate 13 is connected with a second sliding plate 17, the second sliding plate 17 penetrates through a second sliding through groove 18 and is in sliding fit with the second sliding through groove 18, referring to fig. 3 and 4, the part of the first sliding plate 15, which is positioned outside the raintank 4, is connected with a first rack 19, the part of the second sliding plate 17, which is positioned outside the raintank 4, is connected with a second rack 20, the side wall of the raintank 4 is rotatably connected with a rotating shaft 21, the rotating shaft 21 is connected with a gear 22, the gear 22 is positioned outside the raintank 4, the first rack 19 and the second rack 20 are positioned on two sides of the gear 22, the first rack 19 and the second rack 20 are both meshed with the gear 22, the outer side wall of the raintank 4 is connected with a base 23, the base 23 is connected with a second motor 24, an output shaft of the second motor 24 is connected with the rotating shaft 21, and the second motor 24 is a waterproof motor.

When raining, the one end of rainwater case 4 is contradicted to first filter 13, and the other end of rainwater case 4 is contradicted to second filter 14, and first filter 13 filters the rainwater with the cooperation of second filter 14, and first filter 13 and the impurity interception of second filter 14 in with the rainwater, and the rainwater after the filtration is collected in entering into rainwater case 4.

When the water yield in the raintank 4 is observed to needs, start second motor 24, second motor 24 drives pivot 21 and rotates, pivot 21 drives gear 22 and rotates in the rotation process, gear 22 drives first rack 19 and second rack 20 and moves towards opposite direction at the rotation in-process, first rack 19 drives first filter 13 through first slide plate 15 and moves, make first filter 13 no longer contradict raintank 4 tip, second rack 20 drives second filter 14 through second slide plate 17 and moves, make second filter 14 no longer contradict raintank 4 tip, appear the interval between first filter 13 and raintank 4 tip, appear the interval between second filter 14 and the raintank 4 tip, so that observe the water yield in the raintank 4.

After observing the water yield in the raintank 4, restart second motor 24, second motor 24 drives first rack 19 and the opposite direction of second rack 20 and removes, and first filter 13 removes along with first rack 19, and second filter 14 removes along with second rack 20, and first filter 13 conflicts the one end of raintank 4 again, and second filter 14 conflicts the other end of raintank 4 again.

Referring to fig. 1 and 2, the spraying device comprises a water pump 25, a water pumping pipe 26, a hose 27, a spraying pipe 28, an adapter pipe 29 and a first motor 30, the water pump 25 is arranged on the roof 1, the motor on the water pump 25 is a waterproof motor, one end of the water pumping pipe 26 is connected with the side wall of the rainwater tank 4, the other end of the water pumping pipe is connected with the water pump 25, one end of the hose 27 is connected with the water pump 25, the other end of the hose 27 is detachably connected with the adapter pipe 29, and the hose 27 is a rubber pipe.

Referring to fig. 1 and 2, adapter tube 29 is detachably connected to circumferential direction closure baffle 7, circumferential direction closure baffle 7 is last to be connected with support frame 31, be equipped with the arc wall on the support frame 31, adapter tube 29 sets up to the L shape, the horizontal part of adapter tube 29 is placed in the arc wall, there is hoop sheet 32 through the screw connection on the support frame 31, adapter tube 29 is located between hoop sheet 32 and the support frame 31, hose 27 is tightly overlapped in the one end of adapter tube 29 horizontal part, fasten through staple bolt 33 between hose 27 and the adapter tube 29.

Referring to fig. 1 and 2, the first motor 30 is disposed in the circumferential closed baffle 7, the first motor 30 is a waterproof motor, and specifically, the first motor 30 is disposed at the bottom of the planting box 3; one end of the spray pipe 28 is connected with the first motor 30, the other end is connected with one end of the vertical portion of the adapter pipe 29 in a rotating manner, the spray pipe 28 comprises an inner cylinder 34 and an outer cylinder 35, one end of the vertical portion of the adapter pipe 29 is connected with the opening of the inner cylinder 34 in a rotating manner through a bearing, the inner cylinder 34 is detachably connected into the outer cylinder 35, refer to fig. 5 and 6, a positioning strip 36 is connected onto the outer side wall of the inner cylinder 34, a positioning groove 37 is formed in the inner side wall of the outer cylinder 35, the positioning strip 36 is inserted into the positioning groove 37, refer to fig. 2, the bottom of the outer cylinder 35 is connected with the first motor 30 through a turntable 38, the turntable 38 is connected onto the output shaft of the first motor 30, the outer cylinder 35 is connected onto the turntable 38, water outlets 39 are formed in the inner cylinder 34 and the outer cylinder 35, the water outlets 39 on the inner cylinder 34 are communicated with the water outlets 39 on the outer cylinder 35, and the water outlets 39 are located above the planting soil 11 in the vertical direction.

When raining, start water pump 25 and first motor 30 simultaneously, water pump 25 extracts to the hose 27 in through the rainwater extraction of drinking-water pipe 26 in with rainwater tank 4, rainwater in the hose 27 enters into inner tube 34 through switching pipe 29 in, rainwater in the inner tube 34 passes through apopore 39 blowout, when rainwater in inner tube 34 was discharged, first motor 30 drives carousel 38 and rotates, carousel 38 drives urceolus 35 and rotates, urceolus 35 drives inner tube 34 through the cooperation of location strip 36 and constant head tank 37 and rotates, thereby make inner tube 34 rotate in the water spray, water on green planting 12 through inner tube 34 spun rainwater, and the more even of watering.

The implementation principle of the green roof of planting of this application embodiment does: when raining, the rainwater waters and falls on green planting 12, can water green planting 12, and first filter 13 and the cooperation of second filter 14 are used and can be filtered the rainwater, and the rainwater after filtering enters into rainwater case 4 and is collected, and the rainwater that drops in the circumference closure flap 7 is filtered by the wash port 5 of planting the 3 bottoms of case, and the rainwater after filtering enters into collection box 2 and is collected.

When the green plants 12 need to be watered in a fine day, the water pump 25 and the first motor 30 are started simultaneously, the water pump 25 extracts rainwater in the rainwater tank 4 into the spraying pipe 28, the first motor 30 drives the spraying pipe 28 to rotate, so that the spraying pipe 28 sprays water in the rotating process, the sprayed rainwater is irrigated on the green plants 12, rainwater collection is achieved, the purpose of irrigating the green plants 12 by using the rainwater is achieved, the waste of rainwater resources is avoided, and the rainwater resources are reasonably utilized.

Unnecessary moisture can enter into collection box 2 through the wash port 5 of planting 3 bottoms portions of case in the planting soil 11, realizes the purpose of retrieving unnecessary moisture, avoids causing the waste of water resource.

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

1. A green roof, comprising a roof (1), characterized in that: the planting box is characterized by further comprising a planting box (3), a rainwater box (4) and a spraying device, wherein the planting box (3) and the rainwater box (4) are arranged on the roof (1), a circumferential closed baffle (7) is arranged in the planting box (3), the side wall of the circumferential closed baffle (7) and the side wall of the planting box (3) are arranged at intervals, planting soil (11) is laid between the side wall of the circumferential closed baffle (7) and the side wall of the planting box (3), green plants (12) are planted on the planting soil (11), the spraying device comprises a water pump (25), a water pumping pipe (26), a hose (27), a spraying pipe (28), a switching pipe (29) and a first motor (30), the water pump (25) is arranged on the roof (1), one end of the water pumping pipe (26) is connected with the rainwater box (4), the other end of the water pump (25), one end of the hose (27) is connected with the water pump (25), the other end of the switching pipe (29) is connected with the switching pipe (29), adapter tube (29) sets up on circumference closure baffle (7), and first motor (30) set up in circumference closure baffle (7), and the one end and first motor (30) of shower (28) are connected, and the other end rotates with adapter tube (29) to be connected, is equipped with apopore (39) on shower (28), and apopore (39) lie in planting soil (11) top on vertical direction.

2. The green plant roof of claim 1, wherein: the hose (27) is detachably connected with the adapter tube (29).

3. The green plant roof of claim 1, wherein: adapter tube (29) and circumference seal baffle (7) and can dismantle and be connected, shower (28) include inner tube (34) and urceolus (35), and adapter tube (29) rotates and connects in the nozzle department of inner tube (34), and inner tube (34) can be dismantled and connect in urceolus (35), and urceolus (35) are connected with first motor (30), and apopore (39) set up on inner tube (34) and urceolus (35), apopore (39) on inner tube (34) and apopore (39) on urceolus (35) communicate.

4. The green plant roof of claim 3, wherein: be equipped with location strip (36) on inner tube (34) lateral wall, be equipped with constant head tank (37) on urceolus (35) inside wall, location strip (36) are inserted and are established in constant head tank (37).

5. The green plant roof of claim 1, wherein: still include collection box (2), collection box (2) set up on roof (1), plant case (3) and set up on collection box (2), plant case (3) bottom and be located collection box (2) case mouth top, plant case (3) bottom and be equipped with wash port (5), be connected through communicating pipe (6) between collection box (2) and rainwater case (4).

6. The green plant roof of claim 5, wherein: the circumference seals baffle (7) and is the annular, plants partial wash port (5) of case (3) bottom and is located circumference and seals the inside below of baffle (7), is equipped with on circumference and permeates water hole (8) and is used for sheltering from non-woven fabrics (9) of permeating water hole (8) on circumference seals baffle (7).

7. The green plant roof of claim 1, wherein: be equipped with the filter in rainwater case (4), the filter includes first filter (13) and second filter (14), the length of first filter (13) and the length of second filter (14) all are less than the length of rainwater case (4), first filter (13) and second filter (14) all with rainwater case (4) sliding fit, be connected with first rack (19) on first filter (13), be connected with second rack (20) on second filter (14), it is connected with pivot (21) to rotate on rainwater case (4) lateral wall, be equipped with gear (22) on pivot (21), first rack (19) and second rack (20) are located the both sides of gear (22), first rack (19) and second rack (20) all mesh with gear (22), the one end of rainwater case (4) is contradicted to first filter (13), the other end of rainwater case (4) is contradicted to second filter (14).

8. The green plant roof of claim 7, wherein: be equipped with first logical groove (16) and the second logical groove (18) that slides on rainwater case (4) lateral wall of sliding, be equipped with first slide block (15) on the lateral wall of keeping away from second filter (14) one side in first filter (13), first slide block (15) run through first logical groove (16) that slides and with first logical groove (16) sliding fit that slides, be equipped with second slide block (17) on the lateral wall of keeping away from first filter (13) one side in second filter (14), second slide block (17) run through second logical groove (18) that slides and with second logical groove (18) sliding fit that slides, first rack (19) set up on first slide block (15) are located rainwater case (4) outer part, second rack (20) set up on second slide block (17) are located rainwater case (4) outer part, gear (22) are located outside rainwater case (4).