CN113605608A

CN113605608A - Greening building roof

Info

Publication number: CN113605608A
Application number: CN202110873992.9A
Authority: CN
Inventors: 吴达良; 林文喜
Original assignee: Fujian Toubao Construction Engineering Co ltd
Current assignee: Fujian Toubao Construction Engineering Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-05

Abstract

The application discloses a greening building roof, which relates to the technical field of building greening and solves the problem that plant growth is influenced due to large rainfall, and comprises a roof body and a wall body for supporting the roof body, wherein the roof body comprises inclined roofs inclining downwards from the middle to two sides, and a storage box is arranged between the two inclined roofs; planting layers with plants are arranged on the two inclined roofs; the utility model discloses a plant layer, including storage tank, cloth roller, waterproof cloth, storage tank, planting layer, cloth outlet, the storage tank internal rotation is connected with two parallel cloth rollers, and it has the waterproof cloth to wind on the cloth roller, set up the cloth outlet that supplies the waterproof cloth to stretch out on the storage tank lateral wall towards planting the layer. This application can improve because heavy rainfall weather leads to the too much problem of plant moisture through the setting of tarpaulin.

Description

Greening building roof

Technical Field

The application relates to the technical field of building greening, in particular to a greening building roof.

Background

In urban planning and construction, in order to increase the greening area of a city and improve the heat island effect, green plants are usually planted on the roof of a building.

The existing roof greening structure comprises a roof body 1 inclined from the middle part to two sides and a wall body 2 for supporting the roof body 1, wherein a planting frame 7 is arranged on the roof body 1, and plants are planted in the planting frame 7, as shown in fig. 1.

With respect to the related art in the above, the inventors consider that: because plants on the roof are planted in the open air, when rainfall is large in rainy days, the growth of the plants can be influenced by excessive moisture.

Disclosure of Invention

In order to improve because the great problem that influences the plant growth of rainfall, this application provides a greening building roof.

The application provides a greening building roof adopts following technical scheme:

a greening building roof comprises a roof body and a wall body for supporting the roof body, wherein the roof body comprises inclined roof surfaces inclining downwards from the middle to two sides, and a storage box is arranged between the two inclined roof surfaces of the roof body; planting layers with plants are arranged on the two inclined roofs; the storage box is rotatably connected with two parallel cloth rollers, waterproof cloth is wound on the cloth rollers, and a cloth outlet for the waterproof cloth to extend out is formed in the side wall of the storage box facing the planting layer;

first baffle plates are arranged on two sides of the inclined roof along the inclination direction, a second baffle plate is arranged on one side of the inclined roof, which is far away from the storage box, and the planting layer is positioned between the first baffle plates and the second baffle plates; one end of the waterproof cloth extending out of the cloth outlet is provided with a cloth guide rod which is connected with the two first baffle plates in a sliding manner; the cloth guide rod can slide along the length direction of the first baffle; the cloth guide rod can move to a waterproof state that the waterproof cloth completely covers the planting layer and to a storage state that the waterproof cloth is completely stored in the storage box;

a vertically extending sleeve is fixed on the outer side of the wall body below the inclined roof, a water receiving barrel is vertically and slidably connected in the sleeve, a pulling rope is fixed in the middle of the cloth guide rod, one end of the pulling rope, far away from the cloth guide rod, is fixedly connected with the upper end of the water receiving barrel, and a drain pipe which extends to the upper part of the sleeve and is used for collecting water into the water receiving barrel is connected to the second baffle; the inner wall of the sleeve is provided with an elastic supporting block for carrying out initial temporary support on the bottom of the bucket when the cloth guide rod is in a storage state;

the bottom of the water receiving barrel is provided with two water permeable holes which are symmetrically arranged by taking the axis of the water receiving barrel as a center; an overflow pipe capable of sliding up and down is coaxially and rotatably connected in the water receiving barrel, and the lower end of the overflow pipe extends out of the bottom of the water receiving barrel and extends downwards; a plugging plate for plugging two water permeable holes is fixed on the outer peripheral side of the overflow pipe, and two plugs for plugging the water permeable holes are arranged on one side of the plugging plate close to the bottom of the water receiving barrel;

a blocking disc for blocking the sleeve is arranged at the bottom of the sleeve, a supporting column extending upwards along the axial direction of the sleeve is arranged in the middle of the blocking disc, a guide hole penetrating along the axial direction of the supporting column is formed in the supporting column, and the overflow pipe penetrates through the guide hole;

rotating shafts are coaxially arranged at two ends of the cloth rollers, gears are coaxially fixed on the rotating shafts at the ends of the two cloth rollers extending out of the storage box, the two gears are meshed with each other, one rotating shaft is also fixedly connected with a winding wheel, a winding rope is wound on the winding wheel, and one end of the winding rope is connected with a water collecting barrel; the bottom of the sleeve is connected with a water collecting pipe which obliquely and downwardly extends to the upper part of the water collecting barrel; the water in the two sleeves can be collected into the water collecting barrel through the water collecting pipe;

a water storage tank is arranged below the water collecting barrel, and a water receiving pipe is fixedly connected to the water storage tank; the bottom of the water collecting bucket is provided with a connecting structure which is used for communicating the water receiving pipe with the bottom of the water collecting bucket when the water collecting bucket moves downwards to the waterproof cloth to be in a storage state.

By adopting the technical scheme, when the rainfall is large in rainy days, redundant rainwater on the inclined roof can be collected into the water receiving barrel through the drain pipe, when the water quantity in the water receiving barrel reaches a certain weight, the elastic supporting block can be squeezed open by the water receiving barrel and moved to abut against the supporting column, so that the waterproof cloth is in a waterproof state, and the water collecting barrel is pulled to the initial position of the upper end, so that the irrigation of rainwater to plants is reduced; when rain stops, staff's accessible rotates and the mode of lifting overflow pipe, make stopper and the hole separation of permeating water, make the water accessible in the water receiving bucket permeate water the hole and flow to the blocking tray on, and converge into the water catch bowl by the collector pipe, the in-process of water catch bowl is joined into to water in two water receiving buckets, the water catch bowl can remove downwards and drive the reel rotatory, make two cloth rollers rotate under the effect of gear is synchronous, and drive waterproof cloth income storage tank, and simultaneously, waterproof cloth is at the in-process of income storage tank, can be through pulling rope pulling water receiving bucket rebound to the state that elastic support piece offsets with the water receiving barrel bottom again, and the water catch bowl at this moment passes through connection structure and water receiving pipe intercommunication, make the water of water catch bowl converge into the water storage tank through the water receiving pipe, last staff rotates the overflow pipe, make stopper on the shutoff board block up the hole of permeating water again.

Optionally, a drain hole for inserting the water receiving pipe is formed in the bottom of the water collecting barrel, the connecting structure comprises a plugging column which is slidably connected in the drain hole, a water passing groove which extends along the axial direction of the plugging column is formed in one side, close to the water receiving pipe, of the plugging column, an annular convex edge is arranged on the outer peripheral side, close to one end of the water receiving pipe, of the plugging column, an annular groove which extends along the axial direction of the drain groove and is used for the annular convex edge to slide up and down is formed in the hole wall of the drain hole, and a water passing hole communicated with the water passing groove is formed in the outer wall of the plugging column.

Through adopting above-mentioned technical scheme, when the waterproof cloth was when taking in the storage tank completely, the water receiving pipe inserted in the drainage to promote the shutoff post rebound, make the water hole collector drum intercommunication of crossing on the shutoff post, make the water in the collector drum get into in the basin, and flow into in the water storage box through the water receiving pipe.

Optionally, the elastic support block includes a spherical spring block and a first spring, and an installation groove for installing the spring block and the first spring is formed in the inner wall of the sleeve.

Through adopting above-mentioned technical scheme, when the holistic weight of water receiving bucket is enough big, the mode of water receiving bucket accessible extrusion bullet piece for in the bullet piece income mounting groove, the water receiving bucket of being convenient for removed downwards.

Optionally, the connecting structure further comprises a second spring sleeved on the outer peripheral side of the blocking column, one end of the second spring abuts against the annular convex edge, and the other end of the second spring abuts against the upper groove wall of the annular groove.

Through adopting above-mentioned technical scheme, when there is not external force, the second spring can promote annular protruding edge and the lower cell wall counterbalance of annular for the shutoff post keeps at the shutoff state.

Optionally, the second baffle is rotatably connected with a guide wheel, the guide wheel is provided with a rope groove for guiding the traction rope, and the traction rope is located in the rope groove.

Through adopting above-mentioned technical scheme, the friction that receives when can reducing the removal of tractive rope is set up of leading wheel, improves the life of tractive rope.

Optionally, one side of the water collection tank close to the wall body is rotatably connected with a roller which is used for abutting against the wall body.

Through adopting above-mentioned technical scheme, the setting of gyro wheel can reduce the water catch tank and reciprocate the frictional resistance that produces with the wall body.

Optionally, two ends of the cloth guide rod are rotatably connected with pulleys, two sliding grooves for sliding connection of the pulleys are formed in the first baffle, and the two pulleys are respectively connected with one sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, the frictional resistance when cloth guide rod removes can be reduced in the setting of pulley and spout.

Optionally, plant the layer including planting the frame, the bottom of planting the frame is provided with and is used for the support bar that offsets with oblique roofing, the bottom of planting the frame sets up the equipartition and has the apopore.

Through adopting above-mentioned technical scheme, the setting of support bar can make and plant and leave the clearance between the roofing to one side.

In summary, the present application includes at least one of the following benefits:

1. the problem of excessive plant moisture caused by heavy rainfall weather can be solved through the arrangement of the waterproof cloth;

2. the arrangement of the water storage tank can collect rainwater, so that the rainwater can be recycled.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

fig. 2 is a schematic structural view of the tarpaulin of the present embodiment in a storage state;

FIG. 3 is a schematic structural view of the chute of the present embodiment;

FIG. 4 is a schematic view of a partial section of a planting frame according to the present embodiment;

FIG. 5 is an enlarged schematic view at A in FIG. 4 of the present embodiment;

FIG. 6 is an exploded view of the storage case of the present embodiment;

fig. 7 is a schematic structural view of the tarpaulin of the present embodiment in a waterproof state;

fig. 8 is a schematic structural view of the water collecting tub of the present embodiment;

FIG. 9 is a schematic cross-sectional view of the embodiment embodying a reservoir;

fig. 10 is an enlarged schematic view at B in fig. 9 of the present embodiment;

fig. 11 is a schematic structural view of the plugging column of the present embodiment.

Description of reference numerals: 1. a roof body; 2. a wall body; 3. an inclined roof; 4. a storage box; 5. a first baffle plate; 6. a second baffle; 7. planting frames; 8. a water outlet hole; 9. a supporting strip; 10. a drain pipe; 11. cloth roller; 12. a rotating shaft; 13. waterproof cloth; 14. a cloth outlet; 15. a cloth guide bar; 16. a pulley; 17. a chute; 18. a sleeve; 19. a water receiving barrel; 20. a boom; 21. a guide wheel; 22. a spring block; 23. a first spring; 24. a second spring; 25. a limiting ring; 26. mounting grooves; 27. water permeable holes; 28. mounting holes; 29. an overflow pipe; 30. a plugging plate; 31. a plug; 32. blocking the disc; 33. a support pillar; 34. a guide hole; 35. a gear; 36. a winding wheel; 37. rope rolling; 38. a water collection barrel; 39. a roller; 40. a first limit plate; 41. a second limiting plate; 42. a water collection pipe; 43. a water storage tank; 44. a water receiving pipe; 45. a drain hole; 46. plugging the column; 47. passing through a water tank; 48. an annular convex edge; 49. a ring groove; 50. water passing holes; 51. a pull rope.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses greening building roof. Referring to fig. 2 and 3, the building roof includes roof body 1 and is used for supporting wall body 2 of roof body 1, and roof body 1 includes from the centre toward the oblique roofing 3 of both sides downward sloping, and roof body 1 is located and is provided with storage tank 4 between two oblique roofing 3, all is provided with the planting layer on two oblique roofing 3 for plant the plant.

Referring to fig. 3 and 4, two sides of the inclined roof 3 along the inclined direction are provided with first baffle plates 5, the two first baffle plates 5 are parallel to each other, and one end of the inclined roof 3 away from the storage box 4 is provided with a second baffle plate 6 connected with the two first baffle plates 5. Enclose between first baffle 5, second baffle 6 and the storage tank 4 and close and form the planting region, plant the layer including installing planting frame 7 in planting the region, the plant is planted in planting frame 7. The bottom equipartition of planting frame 7 has apopore 8, and outside the frame 7 was planted in the 8 discharge of unnecessary water accessible apopores, one side of planting frame 7 near oblique roofing 3 was provided with support bar 9, and support bar 9 can be for planting the frame 7 and forming drainage space between the roofing 3 to one side. The second baffle 6 is connected with a drain pipe 10 communicated with the drainage space for draining accumulated water retained on the inclined roof 3.

Referring to fig. 5 and 6, two parallel cloth rollers 11 are arranged in the storage box 4, waterproof cloth 13 is rotatably connected to the cloth rollers 11, rotating shafts 12 are arranged at two ends of the cloth rollers 11, and the cloth rollers 11 are rotatably connected in the storage box 4 through the rotating shafts 12 and bearings. The lateral wall of the storage box 4 facing the planting frame 7 is provided with a cloth outlet 14 for the waterproof cloth 13 to extend out, and the waterproof cloth 13 can extend out of the storage box 4 through the cloth outlet 14 and cover the planting frame 7 for water prevention.

Referring to fig. 6, one end of the waterproof cloth 13 extending out of the cloth outlet 14 is fixedly connected with a cloth guide rod 15, two ends of the cloth guide rod 15 are rotatably connected with pulleys 16, two first baffles 5 are provided with sliding grooves 17 for the pulleys 16 to be slidably connected, and the sliding grooves 17 extend along the length direction of the first baffles 5. When the waterproof cloth 13 is in a waterproof state of completely covering the upper part of the planting frame 7, the cloth guide rod 15 moves to the second baffle 6; when the waterproof cloth 13 is in a storage state of being completely stored in the storage box 4, the cloth guide bar 15 moves to abut against the storage box 4.

Referring to fig. 4 and 5, a vertically extending sleeve 18 is fixed on the outer side of the wall body 2 below the inclined roof 3, a water receiving bucket 19 is connected in the sleeve 18 in a vertical sliding manner, and a pipe orifice of the water discharging pipe 10 is arranged towards the sleeve 18, so that water collected on the inclined roof 3 can be discharged into the water receiving bucket 19 through the water discharging pipe 10. A hanging rod 20 is fixedly arranged at the upper end of the water receiving barrel 19, a pulling rope 51 is fixed at the middle part of the cloth guide rod 15, and one end of the pulling rope 51 far away from the cloth guide rod 15 is bound and fixed on the hanging rod 20.

Referring to fig. 4 and 5, the guide wheel 21 is rotatably connected to the second flap 6, a rope groove for guiding the pulling rope 51 is formed in the guide wheel 21, and the pulling rope 51 is located in the rope groove.

Referring to fig. 4 and 5, the inner wall of the sleeve 18 is provided with an elastic support block for initially temporarily supporting the bottom of the water tub 19 when the cloth guide bar 15 is in the storage state. Specifically, the elastic support block is including being globular bullet piece 22 and first spring 23, offers the mounting groove 26 that supplies bullet piece 22 and first spring 23 installation on the inner wall of sleeve 18, and the notch interference joint of mounting groove 26 has the spacing ring 25 that is used for preventing bullet piece 22 to break away from mounting groove 26, and the one end of first spring 23 offsets with the tank bottom of mounting groove 26, and the other end offsets with bullet piece 22. Under the action of the first spring 23, the elastic block 22 can partially extend out of the mounting groove 26 and support the water bucket 19. When the water volume of the water receiving barrel 19 reaches a certain weight, the water receiving barrel 19 can slide off the elastic block 22 in a manner of extruding the elastic block 22, so that the water receiving barrel 19 can move vertically downwards.

Referring to fig. 4 and 5, two water permeable holes 27 are formed in the bottom of the water receiving bucket 19, and the two water permeable holes 27 are symmetrically arranged around the axis of the water receiving bucket 19. The bottom of the water receiving barrel 19 is provided with a mounting hole 28 in a penetrating manner, an overflow pipe 29 connected in the mounting hole 28 in a sliding manner is arranged in the water receiving barrel 19, the overflow pipe 29 can rotate in the mounting hole 28 and slide up and down along the axis direction of the water receiving barrel 19, a plugging plate 30 used for plugging the two water permeable holes 27 is fixed on the outer peripheral side of the overflow pipe 29, two plugs 31 are arranged on one side, close to the bottom of the water receiving barrel 19, of the plugging plate 30, and the overflow pipe 29 can rotate to plug the two water permeable holes 27 respectively by the two plugs 31. When the plug 31 blocks the water permeable hole 27, the upper pipe orifice of the overflow pipe 29 is positioned in the water receiving bucket 19, so that the redundant water in the water receiving bucket 19 can be discharged from the overflow pipe 29.

Referring to fig. 4 and 5, a blocking disc 32 for blocking the sleeve 18 is arranged at the bottom of the sleeve 18, a supporting column 33 extending along the axial direction of the sleeve 18 is arranged in the middle of the blocking disc 32, a guiding hole 34 penetrating along the axial direction of the supporting column 33 is formed in the supporting column 33, and one end of the overflow pipe 29 penetrates through the guiding hole 34 and extends to the ground. When the tarpaulin 13 is in a waterproof state, the bottom of the water receiving bucket 19 abuts against the upper end face of the support column 33.

Referring to fig. 6 and 7, in order to facilitate the waterproof cloth 13 to be switched between the waterproof state and the storage state, the two cloth rollers 11 are coaxially fixed with gears 35 on the rotating shaft 12 extending out of the same end of the storage box 4, and the two gears 35 have the same size and are meshed with each other. One of the rotating shafts 12 is also fixed with a winding wheel 36, a winding rope 37 is wound on the winding wheel 36, and one end of the winding rope 37 is connected with a water collecting barrel 38.

Specifically, referring to fig. 7 and 8, a plurality of rollers 39 are rotatably connected to one side of the water collecting bucket 38 close to the wall 2, and the rollers 39 are in contact with the wall 2 to reduce friction between the water collecting bucket 38 and the wall 2. Still be provided with two parallel and vertical downwardly extending's first limiting plate 40 on the wall body 2, the sump barrel 38 is located between two first limiting plates 40, and the one end that wall body 2 was kept away from to two first limiting plates 40 is provided with the second limiting plate 41 that extends towards the direction of being close to mutually, and first limiting plate 40 and the spacing cavity that supplies sump barrel 38 to slide from top to bottom that forms of second. It should be noted here that the part of the sloping roof 3 extending outside the wall 2 can be folded into the water collecting bucket 38, so that rainwater cannot flow into the water collecting bucket 38. Or a water baffle fixedly connected with the wall body 2 can be arranged above the water collecting barrel 38 for preventing rainwater from entering the water collecting barrel 38.

Referring to fig. 7, the bottom of the sleeve 18 is connected with a header pipe 42 extending obliquely downward to above the sump tub 38; the water in the two sleeves 18 can be collected together in the sump tub 38 via the sump tube 42. A water storage tank 43 is arranged on the ground below the water collecting barrel 38, and a water receiving pipe 44 extending vertically is fixedly connected to the water storage tank 43. The bottom of the water collecting barrel 38 is further provided with a connecting structure for communicating the water receiving pipe 44 with the water collecting barrel 38, so that water in the water collecting barrel 38 can enter the water storage tank 43 through the water receiving pipe 44.

Referring to fig. 9 and 10, a drain hole 45 into which the water receiving pipe 44 is inserted is formed in the bottom of the water collecting bucket 38, the connection structure includes a blocking column 46 slidably connected in the drain hole 45, a water passing groove 47 is formed in one side of the blocking column 46 close to the water receiving pipe 44, and the water passing groove 47 extends along the axial direction of the blocking column 46. An annular convex edge 48 is fixedly arranged on the outer peripheral side of one end, close to the water receiving pipe 44, of the plugging column 46, an annular groove 49 for the sliding connection of the annular convex edge 48 is formed in the hole wall of the water discharging hole 45, and the annular groove 49 extends along the axial direction of the water discharging hole 45.

Referring to fig. 10 and 11, the outer wall of the blocking column 46 is provided with a water through hole 50 communicated with the water through groove 47. The connecting structure further comprises a second spring 24 sleeved on the outer peripheral side of the plugging column 46, one end of the second spring 24 abuts against the annular convex edge 48, and the other end of the second spring abuts against the upper groove wall of the annular groove 49. Under the action of no external force, the second spring 24 can push the annular convex edge 48 to abut against the lower groove wall of the annular groove 49, and meanwhile, the upper end face of the blocking column 46 and the barrel bottom of the water collecting barrel 38 are positioned on the same plane, so that the water drainage hole 45 is blocked.

When the waterproof cloth 13 is in the storage state, the water collecting bucket 38 moves to the water receiving pipe 44 and is inserted into the water discharging hole 45, so that the blocking column 46 moves upwards to the water passing hole 50 and is communicated with the water collecting bucket 38, so that the water in the water collecting bucket 38 can flow into the water passing groove 47 through the water passing hole 50 and flow into the water receiving pipe 44 through the water passing groove 47, and the water in the water collecting bucket 38 is discharged into the water storage tank 43 to be collected.

The implementation principle of the greening building roof of the embodiment of the application is as follows:

in rainy days, rainwater permeating from the planting frame 7 can enter the water receiving barrel 19 through the drain pipe 10 to be collected, when the water receiving barrel 19 collects a certain amount of water, the water receiving barrel 19 can slide the elastic block 22, the elastic block 22 moves downwards, the water receiving barrel 19 moves to be abutted against the supporting column 33, the waterproof cloth 13 at the moment is in a waterproof state, accordingly, the rainwater is prevented from continuously irrigating plants, redundant water flow is unnecessarily collected into the water receiving barrel 19, and the rainwater can be discharged through the overflow pipe 29.

When the rain stops, the worker can lift the overflow pipe 29 upwards to separate the plug 31 from the permeable hole 27, then rotate the overflow pipe 29 to make the plug 31 dislocated with the permeable hole 27, at the moment, the water in the water receiving barrel 19 can pass through the permeable hole 27 onto the blocking disc 32 and be drained into the water collecting barrel 38 through the water collecting pipe 42 on the blocking disc 32, so that the water collecting barrel 38 pulls the winding rope 37 to move downwards, the winding wheel 36 drives the gear 35 to rotate, the two cloth rollers 11 synchronously rotate, when the water collecting barrel 38 moves to a state that the waterproof cloth 13 completely enters the storage box 4, the bottom of the water receiving barrel 19 abuts against the elastic block 22 again, and the water receiving pipe 44 is inserted into the water draining hole 45 and communicated with the water collecting barrel 38; finally, the staff rotates the overflow pipe 29 again, so that the plug 31 is plugged into the water permeable hole 27 again to be fixed, so as to be used for the next water storage of the water receiving tank 19.

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 greening building roof, includes roof body (1) and is used for supporting wall body (2) of roof body (1), roof body (1) includes from the centre to the oblique roofing (3) of both sides downward sloping, its characterized in that: a storage box (4) is arranged between the two inclined roof surfaces (3) of the roof body (1); planting layers with plants are arranged on the two inclined roof surfaces (3); the storage box (4) is rotatably connected with two parallel cloth rollers (11), waterproof cloth (13) is wound on the cloth rollers (11), and a cloth outlet (14) for the waterproof cloth (13) to extend out is formed in the side wall of the storage box (4) facing the planting layer;

two sides of the inclined roof (3) along the inclined direction are provided with first baffle plates (5), one side of the inclined roof (3) far away from the storage box (4) is provided with a second baffle plate (6), and the planting layer is positioned between the first baffle plates (5) and the second baffle plates (6); one end of the waterproof cloth (13) extending out of the cloth outlet (14) is provided with a cloth guide rod (15) which is connected with the two first baffle plates (5) in a sliding manner; the cloth guide rod (15) can slide along the length direction of the first baffle (5); the cloth guide rod (15) can move to a waterproof state that the waterproof cloth (13) completely covers the upper part of the planting layer and to a storage state that the waterproof cloth (13) is completely stored in the storage box (4);

a vertically extending sleeve (18) is fixed on the outer side of the wall body (2) below the inclined roof (3), a water receiving barrel (19) is vertically connected in the sleeve (18) in a sliding mode, a pulling rope (51) is fixed in the middle of the cloth guide rod (15), one end, far away from the cloth guide rod (15), of the pulling rope (51) is fixedly connected with the upper end of the water receiving barrel (19), and a water drainage pipe (10) extending to the position above the sleeve (18) and used for collecting water into the water receiving barrel (19) is connected to the second baffle (6); the inner wall of the sleeve (18) is provided with an elastic supporting block which is used for carrying out initial temporary support on the bottom of the water bucket (19) when the cloth guide rod (15) is in a storage state;

two water permeable holes (27) are formed in the bottom of the water receiving barrel (19), and the two water permeable holes (27) are symmetrically arranged by taking the axis of the water receiving barrel (19) as a center; an overflow pipe (29) capable of sliding up and down is coaxially and rotatably connected in the water receiving barrel (19), and the lower end of the overflow pipe (29) extends out of the bottom of the water receiving barrel (19) and extends downwards; a blocking plate (30) for blocking the two water permeable holes (27) is fixed on the outer peripheral side of the overflow pipe (29), and two plugs (31) for blocking the water permeable holes (27) are arranged on one side, close to the bottom of the water receiving barrel (19), of the blocking plate (30);

a blocking disc (32) for blocking the sleeve (18) is arranged at the bottom of the sleeve (18), a supporting column (33) extending upwards along the axial direction of the sleeve (18) is arranged in the middle of the blocking disc (32), a guide hole (34) penetrating along the axial direction of the supporting column (33) is formed in the supporting column (33), and the overflow pipe (29) penetrates through the guide hole (34);

rotating shafts (12) are coaxially arranged at two ends of the cloth rollers (11), gears (35) are coaxially fixed on the rotating shafts (12) at one ends of the two cloth rollers (11) extending out of the storage box (4), the two gears (35) are mutually meshed, one rotating shaft (12) is also fixedly connected with a winding wheel (36), a winding rope (37) is wound on the winding wheel (36), and one end of the winding rope (37) is connected with a water collecting barrel (38); the bottom of the sleeve (18) is connected with a water collecting pipe (42) which extends downwards to the upper part of the water collecting barrel (38) in an inclined way; the water in the two sleeves (18) can be converged into the water collecting barrel (38) together through the water collecting pipe (42);

a water storage tank (43) is arranged below the water collecting barrel (38), and a water receiving pipe (44) is fixedly connected to the water storage tank (43); the bottom of the water collecting barrel (38) is provided with a connecting structure which is used for communicating the water receiving pipe (44) with the barrel bottom of the water collecting barrel (38) when the water collecting barrel (38) moves downwards to the waterproof cloth (13) to be in a storage state.

2. A green building roof as claimed in claim 1, wherein: the water collecting barrel is characterized in that a drain hole (45) for inserting a water receiving pipe (44) is formed in the bottom of the water collecting barrel (38), the connecting structure comprises a blocking column (46) which is connected in the drain hole (45) in a sliding mode, a water passing groove (47) which extends along the axial direction of the blocking column (46) is formed in one side, close to the water receiving pipe (44), of the blocking column (46), an annular convex edge (48) is arranged on the outer peripheral side, close to one end of the water receiving pipe (44), of the blocking column (46), an annular groove (49) which extends along the axial direction of the drain hole (45) and allows the annular convex edge (48) to slide up and down is formed in the hole wall of the drain hole (45), and a water passing hole (50) communicated with the water passing groove (47) is formed in the outer wall of the blocking column (46).

3. A green building roof as claimed in claim 2, wherein: the elastic support block comprises a spherical elastic block (22) and a first spring (23), and an installation groove (26) for installing the elastic block (22) and the first spring (23) is formed in the inner wall of the sleeve (18).

4. A green building roof as claimed in claim 3, wherein: the connecting structure further comprises a second spring (24) sleeved on the outer peripheral side of the blocking column (46), one end of the second spring (24) is abutted to the annular convex edge (48), and the other end of the second spring is abutted to the upper groove wall of the annular groove (49).

5. A green building roof as claimed in claim 4, wherein: the second baffle (6) is rotatably connected with a guide wheel (21), a rope groove for guiding a pulling rope (51) is formed in the guide wheel (21), and the pulling rope (51) is located in the rope groove.

6. A green building roof as claimed in claim 5, wherein: one side of the water collecting tank close to the wall body (2) is rotatably connected with a roller (39) which is used for abutting against the wall body (2).

7. A green building roof as claimed in claim 6, wherein: two ends of the cloth guide rod (15) are rotatably connected with pulleys (16), two sliding grooves (17) for the pulleys (16) to be connected in a sliding mode are formed in the first baffle (5), and the two pulleys (16) are respectively connected with one sliding groove (17) in a sliding mode.

8. A green building roof as claimed in claim 7, wherein: the planting layer comprises a planting frame (7), a supporting bar (9) used for being abutted against the inclined roof (3) is arranged at the bottom of the planting frame (7), and water outlets (8) are uniformly distributed at the bottom of the planting frame (7).