A device and method for multi-layer greening above a city

Abstract

The present invention discloses a device and method for multi-layer greening above a city. The device comprises a base, a casing, a motor, a rotating shaft, a first mounting seat, a first through hole, a winch, a traction rope, a limit box, a limit block, a water tank, a third connecting pipe, a third water pipe zipper and a third growth groove. The method comprises step one, assembling the device; step two, installing the device; step three, powering on for trial use; and step four, planting green plants. The present invention is designed as an aerial greening device and does not occupy land area. The present invention is designed with a growth groove, which is conducive to the full expansion of the root system of hydroponic plants without clogging the water pipe. The present invention is designed with a cable water pipe, which can not only play a supporting role but also transport water. The present invention uses a U-shaped water pipe designed as a multi-layer horizontal and vertical mesh structure, which can prevent the water pipe from freezing and cracking, and is conducive to improving the light utilization rate of the plants on the three-layer U-shaped water pipe surface. The device designed by the present invention can be automatically raised and lowered for easy maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of urban greening, and in particular to a device and method for multi-layer greening above a city. Background Art

[0002] As far as the current vertical greening in cities is concerned, greening is mainly carried out on three-dimensional spaces such as building walls, fences, columns and flower stands, which has increased the greening area of ​​urban land and beautified the city. However, there are still many problems. For example, the vertical greening effect in many cities is not good and the vertical green space area is insufficient; when carrying out vertical greening, the application level of ecology is shallow, and a reasonable green space network structure has not yet been formed; the types of vertical greening plants are single and the forms are monotonous, and most of them are limited to climbing plants; taller green plants are inconvenient to trim and maintain. Summary of the invention

[0003] The purpose of the present invention is to provide a device and method for multi-layer greening above a city to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for multi-layer greening above the city, comprising a base, a casing, a motor, a rotating shaft, a first mounting seat, a first through hole, a winch, a traction rope, a first through slot, a column, a second through slot, a second mounting seat, a connecting shaft, a first pulley, a third mounting seat, a receiving slot, a second pulley, a first guide hole, a hollow body, a fixed block, a second through hole, a fixed ring, a second guide hole, a limit box, a limit block, a spring, a buffer block, a guide rod, a water tank, a first water collection tank, a first water pipe network, a first connecting pipe, a first water pipe zipper, a first growth slot, a second water collection tank, a second water pipe network, a second connecting pipe, a second water pipe zipper, a second growth slot, a third water collection tank, a third water pipe network, and a third connecting pipe , a third water pipe zipper and a third growth groove, a casing is fixedly connected to the top outer wall of the base, a motor is fixedly connected to the bottom inner wall of the casing, a rotating shaft is fixedly connected to the outer wall of one side of the output end, a first mounting seat is symmetrically fixed to the inner wall of the bottom end of the casing, a first through hole is opened on the outer wall of one side of the first mounting seat, and the rotating shaft is rotatably connected to the inner wall of one side of the first through hole, a winch is symmetrically fixed to the outer wall of one side of the rotating shaft, a traction rope is fixedly connected to the inner wall of one side of the winch, a column is fixedly connected to the top outer wall of the base, and the column is fixedly connected to the outer wall of one side of the casing, a second mounting seat is fixedly connected to the top outer wall of the base, and the second mounting seat is sleeved on the inner wall of one side of the column, and the second mounting A connecting shaft is symmetrically fixed on the outer walls of both sides of the seat, a first pulley is rotatably connected on the outer wall of one side of the connecting shaft, and the traction rope is sleeved on the outer wall of one side of the first pulley, a third mounting seat is fixedly connected on the outer wall of the top end of the column, a receiving groove is symmetrically opened on the outer wall of the bottom end of the third mounting seat, a second pulley is rotatably connected on the inner wall of one side of the receiving groove, and the traction rope is sleeved on the outer wall of one side of the second pulley, a hollow body is sleeved on the outer wall of one side of the column, a fixing block is fixedly connected on the outer wall of the bottom end of the hollow body, a second through hole is opened on the outer wall of the bottom end of the fixing block, and the column is sleeved on the inner wall of one side of the second through hole, a fixing ring is symmetrically fixed on the outer wall of the top end of the fixing block, and one end of the traction rope is fixedly connected to the fixed On one side outer wall of the ring, a limit box is fixedly connected to the top inner wall of the hollow body, a limit block is slidably connected to the inner wall of one side inner wall of the limit box, a spring is fixedly connected to the top outer wall of the limit block, and one end of the spring is fixedly connected to the top inner wall of the limit box, a buffer block is fixedly connected to the bottom outer wall of the limit block, a water tank is fixedly connected to the top outer wall of the hollow body, a first water collecting trough is fixedly connected to the outer wall of one side of the hollow body, a first water pipe network is symmetrically fixed on the outer walls of both sides of the first water collecting trough, a first connecting pipe is fixedly connected to the outer wall of one side of the first water pipe network, a first water pipe zipper is distributed and fixed on the outer wall of one side of the first connecting pipe, and the first water pipe zipper is fixedly connected to the outer wall of one side of the water tank,A second water collecting trough is fixedly connected to one outer wall of the hollow body, a second water pipe network is symmetrically fixed to the outer walls of both sides of the second water collecting trough, a second connecting pipe is fixedly connected to one outer wall of the second water pipe network, a second water pipe zipper is distributed and fixed on one outer wall of the second connecting pipe, and the second water pipe zipper is fixedly connected to one outer wall of the first water collecting trough, a third water collecting trough is fixedly connected to one outer wall of the hollow body, a third water pipe network is symmetrically fixed to the outer walls of both sides of the third water collecting trough, a third connecting pipe is fixedly connected to one outer wall of the third water pipe network, a third water pipe zipper is distributed and fixed on one outer wall of the third connecting pipe, and the third water pipe zipper is fixedly connected to one outer wall of the second water collecting trough.

[0005] A method for using a multi-layer greening device above a city, comprising step one, assembling the device; step two, installing the device; step three, powering on for trial use; and step four, planting green plants.

[0006] In the above step 1, the device assembly includes the following steps:

[0007] 1) Assemble the casing, motor, shaft, winch and traction rope;

[0008] 2) Put the fixing block on the column, fix the third mounting seat on the column, lead out the traction rope and fix it on the fixing ring;

[0009] 3) Assembling the second mounting seat, the connecting shaft and the first pulley;

[0010] 4) Assembling the hollow body and the guide mechanism, buffer mechanism and cultivation mechanism thereon;

[0011] In the above step 2, the device installation includes the following steps:

[0012] 1) Casting the base;

[0013] 2) Install the assembled second mounting base onto the base;

[0014] 3) Install the assembled housing and columns onto the base;

[0015] 4) Put the assembled hollow body on the column;

[0016] 5) Fix the fixing block on the outer wall of the bottom end of the hollow body;

[0017] In the above step 3, the motor is powered on and the device is started to perform a lifting test;

[0018] In the above step 4, green plants are planted in the first growth groove, the second growth groove and the third growth groove, and water is introduced for irrigation.

[0019] According to the above technical solution, a first through slot is formed on one side outer wall of the housing, and a second through slot is formed on one side outer wall of the column.

[0020] According to the above technical solution, a guide rod is symmetrically fixed on the outer wall of the bottom end of the limit box, a first guide hole is symmetrically opened on the outer walls on both sides of the third mounting seat, and the guide rod is sleeved on the inner wall on one side of the first guide hole, and a second guide hole is symmetrically opened on the outer wall of the bottom end of the fixed block, and the guide rod is sleeved on the inner wall on one side of the second guide hole.

[0021] According to the above technical solution, the first growth grooves are fixedly connected to the nodes of the first water pipe network, the second growth grooves are fixedly connected to the nodes of the second water pipe network, and the third growth grooves are fixedly connected to the nodes of the third water pipe network.

[0022] According to the above technical solution, the water pipes of the first water pipe network, the second water pipe network and the third water pipe network are all in a "U" shape.

[0023] According to the above technical solution, a film is fixedly connected to the outer wall of the bottom end of the first growth groove, a film is fixedly connected to the outer wall of the bottom end of the second growth groove, and a film is fixedly connected to the outer wall of the bottom end of the third growth groove.

[0024] According to the above technical solution, in step 25), the fixing block and the hollow body are fixed by bolts.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention is designed as an aerial greening device and does not occupy land area. The present invention is designed with a growth trough, which is conducive to the hydroponic plants to fully expand their root systems without clogging the water pipes. The present invention is designed with a cable water pipe, which can not only play a supporting role but also transport water. The present invention uses a U-shaped water pipe designed as a multi-layer horizontal and vertical mesh structure, which can prevent the water pipe from freezing and cracking, and is conducive to improving the light utilization rate of the plants on the three-layer U-shaped water pipe surface. The device designed by the present invention can be automatically raised and lowered for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall top view structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall main structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the front view cutaway structure of the hollow body of the present invention;

[0030] Figure 4 yes Figure 3 A magnified view of the structure in the middle A area;

[0031] Figure 5 yes Figure 3 A magnified view of the structure in the middle B area;

[0032] Figure 6 yes Figure 3 A magnified view of the structure in the middle C region;

[0033] Figure 7 is a schematic diagram of a side cutaway structure of a casing of the present invention;

[0034] Figure 8 is a bottom-up structural schematic diagram of the first growth trough of the present invention;

[0035] Fig. 9 is a schematic diagram of the three-dimensional structure of the first growth groove of the present invention;

[0036] Fig.10 is a flow chart of the method of the present invention;

[0037] In the figure: 1, base; 2, housing; 3, motor; 4, shaft; 5, first mounting seat; 6, first through hole; 7, capstan; 8, traction rope; 9, first through slot; 10, column; 11, second through slot; 12, second mounting seat; 13, connecting shaft; 14, first pulley; 15, third mounting seat; 16, receiving slot; 17, second pulley; 18, first guide hole; 19, hollow body; 20, fixing block; 21, second through hole; 22, fixing ring; 23, second guide hole; 24, limit box ; 25. Limit block; 26. Spring; 27. Buffer block; 28. Guide rod; 29. ​​Water tank; 30. First water collection trough; 31. First water pipe network; 32. First connecting pipe; 33. First water pipe zipper; 34. First growth trough; 35. Second water collection trough; 36. Second water pipe network; 37. Second connecting pipe; 38. Second water pipe zipper; 39. Second growth trough; 40. Third water collection trough; 41. Third water pipe network; 42. Third connecting pipe; 43. Third water pipe zipper; 44. Third growth trough. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-9The present invention provides a technical solution: a device for multi-layer greening above a city, comprising a base 1, a casing 2, a motor 3, a rotating shaft 4, a first mounting seat 5, a first through hole 6, a winch 7, a traction rope 8, a first through slot 9, a column 10, a second through slot 11, a second mounting seat 12, a connecting shaft 13, a first pulley 14, a third mounting seat 15, a receiving slot 16, a second pulley 17, a first guide hole 18, a hollow body 19, a fixing block 20, a second through hole 21, a fixing ring 22, a second guide hole 23, a limit box 24, a limit block 25, a spring 26, a buffer block 27, a guide rod 28, a water tank 29, a first water collecting tank 30, a first water pipe network 31, a first connecting pipe 32, a first water pipe zipper 33, a first growth groove 34, and a first water pipe network 35. A second water collection tank 35, a second water pipe network 36, a second connecting pipe 37, a second water pipe zipper 38, a second growth tank 39, a third water collection tank 40, a third water pipe network 41, a third connecting pipe 42, a third water pipe zipper 43 and a third growth tank 44, a casing 2 is fixedly connected to the top outer wall of the base 1, a motor 3 is fixedly connected to the bottom inner wall of the casing 2, a rotating shaft 4 is fixedly connected to the outer wall of one side of the output end, a first mounting seat 5 is symmetrically fixed to the bottom inner wall of the casing 2, a first through hole 6 is opened on the outer wall of one side of the first mounting seat 5, and the rotating shaft 4 is rotatably connected to the inner wall of one side of the first through hole 6, a winch 7 is symmetrically fixed to the outer wall of one side of the rotating shaft 4, a traction rope 8 is fixedly connected to the inner wall of one side of the winch 7, and a first mounting seat 5 is symmetrically fixed to the inner wall of one side of the first through hole 6. There is a column 10, and the column 10 is fixedly connected to the outer wall of one side of the casing 2, a second mounting seat 12 is fixedly connected to the top outer wall of the base 1, and the second mounting seat 12 is sleeved on the inner wall of one side of the column 10, a connecting shaft 13 is symmetrically fixed on the outer walls of both sides of the second mounting seat 12, a first pulley 14 is rotatably connected to the outer wall of one side of the connecting shaft 13, and the traction rope 8 is sleeved on the outer wall of one side of the first pulley 14, a third mounting seat 15 is fixedly connected to the top outer wall of the column 10, a receiving groove 16 is symmetrically opened on the outer wall of the bottom end of the third mounting seat 15, a second pulley 17 is rotatably connected on the inner wall of one side of the receiving groove 16, and the traction rope 8 is sleeved on the outer wall of one side of the second pulley 17, and a hollow body 19 is sleeved on the outer wall of one side of the column 10 A fixing block 20 is fixedly connected to the outer wall of the bottom end of the hollow body 19, a second through hole 21 is opened on the outer wall of the bottom end of the fixing block 20, and the column 10 is sleeved on the inner wall of one side of the second through hole 21, a fixing ring 22 is symmetrically fixed on the top outer wall of the fixing block 20, and one end of the traction rope 8 is fixedly connected to the outer wall of one side of the fixing ring 22, a limit box 24 is fixedly connected to the inner wall of the top end of the hollow body 19, a limit block 25 is slidably connected to the inner wall of one side of the limit box 24, a spring 26 is fixedly connected to the outer wall of the top end of the limit block 25, and one end of the spring 26 is fixedly connected to the inner wall of the top end of the limit box 24, a buffer block 27 is fixedly connected to the outer wall of the bottom end of the limit block 25, and a water tank 29 is fixedly connected to the outer wall of the top end of the hollow body 19.A first water collecting trough 30 is fixedly connected to an outer wall of one side of the hollow body 19, and a first water pipe network 31 is symmetrically fixed to the outer walls of both sides of the first water collecting trough 30, and a first connecting pipe 32 is fixedly connected to an outer wall of one side of the first water pipe network 31, and a first water pipe zipper 33 is distributed and fixed on an outer wall of one side of the first connecting pipe 32, and the first water pipe zipper 33 is fixedly connected to an outer wall of one side of the water tank 29, and a second water collecting trough 35 is fixedly connected to an outer wall of one side of the hollow body 19, and a second water pipe network 36 is symmetrically fixed to the outer walls of both sides of the second water collecting trough 35, and a second connecting pipe 36 is fixedly connected to an outer wall of one side of the second water pipe network 36 A second water pipe zipper 38 is fixedly disposed on one side outer wall of the second connecting pipe 37, and the second water pipe zipper 38 is fixedly connected to one side outer wall of the first water collecting tank 30, a third water collecting tank 40 is fixedly connected to one side outer wall of the hollow main body 19, a third water pipe network 41 is symmetrically fixedly disposed on both sides outer walls of the third water collecting tank 40, a third connecting pipe 42 is fixedly connected to one side outer wall of the third water pipe network 41, a third water pipe zipper 43 is fixedly disposed on one side outer wall of the third connecting pipe 42, and the third water pipe zipper 43 is fixedly connected to one side outer wall of the second water collecting tank 35; a third water pipe zipper 43 is fixedly disposed on one side outer wall of the casing 2 A first through slot 9 and a second through slot 11 are provided on one side outer wall of the column 10 for leading out the traction rope 8; a guide rod 28 is symmetrically fixed on the bottom outer wall of the limit box 24, and a first guide hole 18 is symmetrically provided on both sides of the outer wall of the third mounting seat 15, and the guide rod 28 is sleeved on one side inner wall of the first guide hole 18, and a second guide hole 23 is symmetrically provided on the bottom outer wall of the fixed block 20, and the guide rod 28 is sleeved on one side inner wall of the second guide hole 23, and the guide rod 28 is used to guide the hollow body 19; a first growth groove 34 is fixedly connected at the node of the first water pipe network 31, and a second water pipe network 36 is fixedly connected at the node of the first water pipe network 31. The second growth trough 39 is fixedly connected at the node, and the third growth trough 44 is fixedly connected at the node of the third water pipe network 41. The first growth trough 34, the second growth trough 39 and the third growth trough 44 are used to grow green plants; the water pipes of the first water pipe network 31, the second water pipe network 36 and the third water pipe network 41 are all in a "U" shape to prevent ice from damaging the pipes; a film is fixedly connected to the outer wall of the bottom end of the first growth trough 34, a film is fixedly connected to the outer wall of the bottom end of the second growth trough 39, and a film is fixedly connected to the outer wall of the bottom end of the third growth trough 44. The film can absorb the water evaporated by the lower plants to reduce water loss.

[0040] See also Fig.10 The present invention provides a technical solution: a method for using a multi-layer greening device above a city, including step one, assembling the device; step two, installing the device; step three, powering on for trial use; step four, planting green plants;

[0041] In the above step 1, the device assembly includes the following steps:

[0042] 1) Assemble the housing 2, the motor 3, the rotating shaft 4, the winch 7 and the traction rope 8;

[0043] 2) Sleeve the fixing block 20 on the column 10, fix the third mounting seat 15 on the column 10, and lead out the traction rope 8 and fix it on the fixing ring 22;

[0044] 3) Assembling the second mounting seat 12, the connecting shaft 13 and the first pulley 14;

[0045] 4) Assembling the hollow body 19 and the guide mechanism, buffer mechanism and cultivation mechanism thereon;

[0046] In the above step 2, the device installation includes the following steps:

[0047] 1) Casting the base 1;

[0048] 2) Install the assembled second mounting base 12 onto the base 1;

[0049] 3) Install the assembled housing 2 and column 10 onto the base 1;

[0050] 4) Sleeve the assembled hollow body 19 onto the column 10;

[0051] 5) Fix the fixing block 20 to the outer wall of the bottom end of the hollow body 19 with bolts;

[0052] In the above step 3, the motor is powered on and the device is started to perform a lifting test;

[0053] In the above step 4, green plants are planted in the first growth groove 34, the second growth groove 39 and the third growth groove 44, and water is introduced for irrigation.

[0054] Based on the above, the advantage of the present invention is that when the present invention is used, the device is first assembled and installed, and then green plants are planted in the first growth groove 34, the second growth groove 39 and the third growth groove 44, and water is drawn into the water tank 29. Under the action of gravity, the water flows into the first water pipe network 31 through the first water pipe zipper 33 and the first connecting pipe 32, and then flows into the first water collecting tank 30, and then flows into the second water pipe network 36 through the second water pipe zipper 38 and the second connecting pipe 37, and then flows into the second water collecting tank 35, and then flows into the third water pipe network 41 through the third water pipe zipper 43 and the third connecting pipe 42, and then flows into the third water collecting tank 40, so as to moisturize the green plants. When it is necessary to replace green plants or overhaul, the motor 3 in the housing 2 can be started to drive the rotating shaft 4 to rotate in the first through hole 6 in the first mounting seat 5, drive the winch 7 to release the traction rope 8, and the hollow body 19 slowly descends along the column 10. The guide rod 28 in the first guide hole 18 and the second guide hole 23 guides it. When the hollow body 19 descends to the bottom, the buffer block 27 drives the limit block 25 to slide up along the inner wall of the limit box 24 and compress the spring 26. After the overhaul, the motor 3 is started in the direction, and the traction rope 8 is rolled up, and the fixed block 20 is pulled through the first through slot 9, the second through slot 11, the first pulley 14, the second pulley 17 and the fixed ring 22. Drive the hollow body 19 to rise, wherein the second mounting seat 12 and the connecting shaft 13 are used to install the first pulley 14, the base 1 is used to install the device, the receiving groove 16 on the third mounting seat 15 is used to install the second pulley 17, and the second through hole 21 on the fixed block 20 is used to sleeve the column 10.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for multi-layer greening in the air above a city, comprising a base (1), a housing (2), a motor (3), a rotating shaft (4), a first mounting seat (5), a first through hole (6), a winch (7), a traction rope (8), a first through slot (9), a column (10), a second through slot (11), a second mounting seat (12), a connecting shaft (13), a first pulley (14), a third mounting seat (15), a receiving slot (16), a second pulley (17), a first guide hole (18), a hollow body (19), a fixing block (20), a second through hole (21), a fixing ring (22), and a second guide hole (23) , a limit box (24), a limit block (25), a spring (26), a buffer block (27), a guide rod (28), a water tank (29), a first water collecting trough (30), a first water pipe network (31), a first connecting pipe (32), a first water pipe zipper (33), a first growth groove (34), a second water collecting trough (35), a second water pipe network (36), a second connecting pipe (37), a second water pipe zipper (38), a second growth groove (39), a third water collecting trough (40), a third water pipe network (41), a third connecting pipe (42), a third water pipe zipper (43) and a third growth groove (44), characterized in that: The top outer wall of the base (1) is fixedly connected to a housing (2), the bottom inner wall of the housing (2) is fixedly connected to a motor (3), the outer wall of one side of the output end is fixedly connected to a rotating shaft (4), the bottom inner wall of the housing (2) is symmetrically fixed to a first mounting seat (5), a first through hole (6) is provided on one side outer wall of the first mounting seat (5), and the rotating shaft (4) is rotatably connected to the inner wall of one side of the first through hole (6), a winch (7) is symmetrically fixed to one side outer wall of the rotating shaft (4), a traction rope (8) is fixedly connected to one side inner wall of the winch (7), a column (10) is fixedly connected to the top outer wall of the base (1), and the column (10) is fixedly connected to the outer wall of one side of the housing (2), and the A second mounting seat (12) is fixedly connected to the top outer wall of the base (1), and the second mounting seat (12) is sleeved on the inner wall of one side of the column (10). A connecting shaft (13) is symmetrically fixed to the outer walls of both sides of the second mounting seat (12). A first pulley (14) is rotatably connected to the outer wall of one side of the connecting shaft (13), and the traction rope (8) is sleeved on the outer wall of one side of the first pulley (14). A third mounting seat (15) is fixedly connected to the top outer wall of the column (10), and a receiving groove (16) is symmetrically opened on the outer wall of the bottom end of the third mounting seat (15). A second pulley (17) is rotatably connected to the inner wall of one side of the receiving groove (16), and the traction rope (8) is sleeved on the outer wall of one side of the second pulley (17). A hollow body (19) is sleeved on one side outer wall of the column (10), a fixing block (20) is fixedly connected to the bottom outer wall of the hollow body (19), a second through hole (21) is opened on the bottom outer wall of the fixing block (20), and the column (10) is sleeved on the inner wall of one side of the second through hole (21), a fixing ring (22) is symmetrically fixed on the top outer wall of the fixing block (20), and one end of the traction rope (8) is fixedly connected to the outer wall of one side of the fixing ring (22), a limit box (24) is fixedly connected to the top inner wall of the hollow body (19), a limit block (25) is slidably connected to the inner wall of one side of the limit box (24), and a spring is fixedly connected to the top outer wall of the limit block (25) (26), and one end of the spring (26) is fixedly connected to the top inner wall of the limit box (24), the bottom outer wall of the limit block (25) is fixedly connected to a buffer block (27), the top outer wall of the hollow body (19) is fixedly connected to a water tank (29), one side outer wall of the hollow body (19) is fixedly connected to a first water collecting trough (30), the two side outer walls of the first water collecting trough (30) are symmetrically fixed with a first water pipe network (31), one side outer wall of the first water pipe network (31) is fixedly connected to a first connecting pipe (32), one side outer wall of the first connecting pipe (32) is distributed and fixed with a first water pipe zipper (33), and the first water pipe zipper (33) is fixedly connected to one side outer wall of the water tank (29),A second water collecting trough (35) is fixedly connected to one side outer wall of the hollow main body (19), a second water pipe network (36) is symmetrically fixed to both side outer walls of the second water collecting trough (35), a second connecting pipe (37) is fixedly connected to one side outer wall of the second water pipe network (36), a second water pipe zipper (38) is distributed and fixed on one side outer wall of the second connecting pipe (37), and the second water pipe zipper (38) is fixedly connected to one side outer wall of the first water collecting trough (30), a third water collecting trough (40) is fixedly connected to one side outer wall of the hollow main body (19), a third water pipe network (41) is symmetrically fixed to both side outer walls of the third water collecting trough (40), a third connecting pipe (42) is fixedly connected to one side outer wall of the third water pipe network (41), and the A third water pipe zipper (43) is fixedly disposed on one side outer wall of the third connecting pipe (42), and the third water pipe zipper (43) is fixedly connected to one side outer wall of the second water collecting tank (35). A first through groove (9) is provided on one side outer wall of the housing (2), a second through groove (11) is provided on one side outer wall of the column (10), a guide rod (28) is symmetrically fixedly disposed on the bottom outer wall of the limit box (24), first guide holes (18) are symmetrically disposed on both side outer walls of the third mounting seat (15), and the guide rod (28) is sleeved on one side inner wall of the first guide hole (18), a second guide hole (23) is symmetrically disposed on the bottom outer wall of the fixing block (20), and the guide rod (28) is sleeved on one side inner wall of the second guide hole (23).

2. The device for multi-layer greening in the city according to claim 1, characterized in that: The nodes of the first water pipe network (31) are fixedly connected with first growth grooves (34), the nodes of the second water pipe network (36) are fixedly connected with second growth grooves (39), and the nodes of the third water pipe network (41) are fixedly connected with third growth grooves (44).

3. The device for multi-layer greening in the urban area according to claim 1, characterized in that: The water pipes of the first water pipe network (31), the second water pipe network (36) and the third water pipe network (41) are all in a "U" shape; a film is fixedly connected to the outer wall at the bottom end of the first growth groove (34); a film is fixedly connected to the outer wall at the bottom end of the second growth groove (39); and a film is fixedly connected to the outer wall at the bottom end of the third growth groove (44).

4. A method for using the device for multi-layer greening above a city according to claim 1, comprising step 1, assembling the device; step 2, installing the device; step 3, powering on for trial use; step 4, planting green plants; characterized in that: In the above step 1, the device assembly includes the following steps: 1) Assembling the housing (2), the motor (3), the rotating shaft (4), the winch (7) and the traction rope (8); 2) Sleeve the fixing block (20) onto the column (10), fix the third mounting seat (15) onto the column (10), lead out the traction rope (8), and fix it onto the fixing ring (22); 3) Assembling the second mounting seat (12), the connecting shaft (13) and the first pulley (14); 4) Assembling the hollow body (19) and the guide mechanism, buffer mechanism and cultivation mechanism thereon; In the above step 2, the device installation includes the following steps: 1) pouring the base (1); 2) installing the assembled second mounting base (12) onto the base (1); 3) Installing the assembled housing (2) and column (10) onto the base (1); 4) Sleeve the assembled hollow body (19) onto the column (10); 5) Fixing the fixing block (20) on the outer wall of the bottom end of the hollow body (19); In the above step 3, the motor is powered on and the device is started to perform a lifting test; In the above step 4, green plants are planted in the first growth groove (34), the second growth groove (39) and the third growth groove (44), and water is introduced for irrigation.

5. The method for using the multi-layer greening device above a city according to claim 4, characterized in that: In the step 25), the fixing block (20) and the hollow body (19) are fixed by bolts.

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