CN206575981U - A kind of full automatic municipal irrigation system for greenbelt - Google Patents

Abstract

The utility model discloses a kind of full automatic municipal irrigation system for greenbelt, including horizontal rotation impeller, rotating shaft, horizontal impeller pin, big inner-ring bearing, bearing holder (housing, cover), bottom right axial flow rotary wind wheel, upper right axial flow rotary wind wheel, axial-flow windwheel pin, small inner-ring bearing, copper pipe, water tank, capillary, screw；Horizontal rotation impeller is fixed at the top of rotating shaft by horizontal impeller pin, bottom right axial flow rotary wind wheel, upper right axial flow rotary wind wheel pass through axial-flow windwheel pin, it is separately fixed at air inlet rotating shaft and air outlet in rotating shaft, big inner-ring bearing and small inner-ring bearing are arranged in rotating shaft, it is fixed on by bearing holder (housing, cover) and screw in copper pipe, air inlet copper pipe and air outlet copper pipe are connected by water tank, and capillary is drawn from water storage pot bottom, extends to vegetable layer.Wind blows horizontal rotation impeller rotation, so as to drive axial-flow windwheel to rotate, outside vaporous water flows through the copper pipe for being embedded in underground, is condensed into aqueous water, and Water Energy is provided for vegetation eventually through capillary.

Description

A kind of full automatic municipal irrigation system for greenbelt

Technical field

The utility model is related to urban operating mechanism field, more particularly to a kind of full automatic municipal irrigation system for greenbelt.

Background technology

Planted trees in city, plant grass seeds flower, certain covered ground either decorateeed, to improve city ring The activity in border, here it is urban afforestation.Urban ecological system has by external interference and destruction restorable ability, just The restoring function for the urban ecological system being known as, and urban afforestation is exactly the also basic stitch in urban ecological system.Fill Divide makes urban ecological system have restoring function using urban afforestation ecological environment, can improve life of urban resident environment matter Amount, lifts city image.

The irrigation method in present urban afforestation region has two kinds, and one kind is to utilize sprinkler, artificial control sprinkling zone and Injection flow rate；Another is to lay irrigation pipeline in afforested areas in advance, and opening on pipeline switch, pipeline is opened at regular intervals If osculum spray current irrigate.Both irrigation methods have the shortcomings that very big, and one is that can not accomplish the need according to vegetation The amount of asking provides appropriate moisture, and two be to need to expend and waste substantial amounts of water resource.

Contain inexhaustible water resource in atmosphere in fact, it is simply many to exist in the form of vaporous water, especially in air Moist coastal cities.If water resource in air can be made full use of to be recycled into air to irrigate vegetation, then by vegetation, So precious deficient water resource in underground would be more protected, and urban environment will obtain sustainable protection and development, Irrigated in the mankind in history and also have landmark significance.

The content of the invention

Therefore, the purpose of this utility model is to provide a kind of full automatic municipal irrigation system for greenbelt.Principle of device letter It is single and practical reliable, the gaseous state Water Resource Transformation liquid form in air can be irrigated for vegetation, while can be according to plant The demand of quilt provides appropriate water.

The utility model is adopted the technical scheme that：A kind of full automatic municipal irrigation system for greenbelt, including horizontal rotation Impeller, rotating shaft, horizontal impeller pin, big inner-ring bearing, bearing holder (housing, cover), bottom right axial flow rotary wind wheel, upper right axial flow rotary wind wheel, axle stream wind Take turns pin, small inner-ring bearing, copper pipe, water tank, capillary, screw.

Present apparatus system is divided into air intake part, air-outlet part, cooling segment, containment portion, five parts of transport portion：

In the part that the air intake part and air-outlet part are included, only bottom right axial flow rotary wind wheel, upper right axial flow rotary wind Wheel construction is different.

The inlet section subpackage is containing a horizontal rotation impeller, a rotating shaft, a horizontal impeller pin, one big inner ring Bearing, four bearing holder (housing, cover)s, a bottom right axial flow rotary wind wheel, an axial-flow windwheel pin, a small inner-ring bearing, four screws；

The air-outlet part includes a horizontal rotation impeller, a rotating shaft, a horizontal impeller pin, one big inner ring Bearing, four bearing holder (housing, cover)s, a upper right axial flow rotary wind wheel, an axial-flow windwheel pin, a small inner-ring bearing, four screws；

The flabellum of the horizontal rotation impeller is arc flabellum symmetrical above and below, when natural wind is blown on flabellum, due to recessed The resistance that the face of falling into is produced is more than the resistance that crowning is produced, so horizontal rotation impeller can rotate along the direction of concave face.Institute The center section for stating horizontal rotation impeller is to open up pin hole, horizontal impeller on a cylindrical central sleeve, the external cylindrical surface of cylindrical central sleeve Pin passes through pin hole, and horizontal rotation impeller is fixed on to the most top section of rotating shaft.

The rotating shaft is divided into the area segments that four external diameters are not waited to be cylindric from top to bottom, the external diameter for most pushing up section be it is time big, For horizontal impeller construction section, impeller pin hole is radially offered；The largest outside diameter of downward second segment, any zero is not installed above Part, effect is to separate horizontal rotation impeller with axial-flow windwheel, prevents the flabellum for horizontally rotating impeller from touching axial-flow windwheel； Downward 3rd section of external diameter be also time it is big, it is equal with the external diameter of horizontal impeller construction section, be axial-flow windwheel construction section, radially open up There is axial-flow windwheel pin hole；The minimum outer diameter of most bottom section, is small inner-ring bearing construction section.

The inner ring internal diameter of the big inner-ring bearing is larger, and inner ring is arranged on the axial-flow windwheel construction section of rotating shaft, and top surface is abutted In the largest outside diameter section of rotating shaft；The inner ring internal diameter of the small inner-ring bearing is smaller, and inner ring is arranged in the section of the most bottom of rotating shaft, top Face is abutted against on axial-flow windwheel construction section.

The most inside structure of the bearing holder (housing, cover) is shaped as half of the circular tube shaped splitted along axis, and bottom is provided with baffle structure, Outer ring for loading bearing；The outboard structure of the bearing holder (housing, cover) is court in the middle part of the loop configuration of ear, the side of loop configuration Screw hole is inside offered, is assemblied in by screw in the vertical section of copper pipe.

The bottom right axial flow rotary wind wheel in side view angle, wheel blade spiral to the right and under；The upper right axial flow rotary wind wheel In side view angle, wheel blade spirals up to upper right side；Pin hole is offered on the cylindrical central sleeve of two axial-flow windwheels, passes through axle stream Wind wheel pin is fixed in rotating shaft.

The part of the cooling segment is mainly copper pipe, and the top section of copper pipe is vertical shape, and remainder is helical form, described Copper pipe, which has in the part for being used to install air intake part in two pieces, the vertical section of a copper pipe, the vertical section of another copper pipe, to be used for The part of air-outlet part is installed；The tail end of two copper pipes is put in the water tank of bottommost.

The part of the containment portion is mainly water tank, and the water tank is the column that top is big, bottom is small, internal Hollow, described two copper pipes are stretched at the top of water tank respectively.

The part of the transport portion is mainly capillary, and the capillary is stretched into from the bottom of water tank, and the other end prolongs Extend the vegetable layer of earth's surface.

Principle of the present utility model is：Air blows two horizontal rotation wheel rotations, drives rotating shaft rotation, finally drives Axial-flow windwheel rotates.The steerings of two horizontal rotation impellers are identical, but air intake part, the axial-flow windwheel of air-outlet part Wheel blade arragement direction enters present apparatus system on the contrary, ultimately resulting in air from air intake part, from air-outlet part discharge present apparatus system System.

Underground temperature and its depth have certain rule, from earth's surface to earth's surface under tens meters of depth in, soil temperature Degree is with the increase and reduction of depth；Then the soil moisture increases with the increase of depth still further below.Using this rule, it will store up Water pot is embedded in the minimum soil horizon of temperature, and the depth various regions of the minimum soil horizon of temperature are different, typically several meters to more than ten meters it Between in the range of.

Analyzed from price and performance perspective, metallic copper is optimal Heat Conduction Material.The higher air of external temperature is being flowed through When air intake copper pipe, water tank, air-out copper pipe, occurs condensation, part vaporous water is converted to aqueous water, is attached to copper pipe inwall On, it is final to import in water tank.Last capillary conducts the water in water tank to vegetable layer, and Water Energy is provided for vegetation.

The utility model has an advantageous effect in that：(1) horizontal impeller and axial wind wheel structure are utilized, power will be horizontally rotated Be converted to the propulsive force of vertical direction；(2) using underground low temperature and bending copper pipe structure, realize vaporous water to aqueous water Condensation conversion；(3) capillary pipe structure is utilized, appropriate water energy is transmitted according to vegetation demand.So, this full automatic city A large amount of manpowers can be saved after political affairs irrigation system for greenbelt, once-paving, full automatic green area irrigation are realized, being provided for urban environment can Lasting protection and development.

Other feature and advantage of the present utility model will illustrate in the following description, or new by implementing this practicality Type and understand.

Brief description of the drawings

Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as to limitation of the present utility model, whole In accompanying drawing, identical reference symbol represents identical part.

Fig. 1 is integral installation distribution structure schematic diagram of the utility model in soil.

Fig. 2 is that the utility model is removing the overall structure diagram of soil conditions.

Fig. 3 is the partial assembled structural representation at horizontal rotation impeller of the present utility model.

Fig. 4 is the utility model in the copper pipe and the disassembly diagram of screw at horizontal rotation impeller.

Fig. 5 is Fig. 4 close-up schematic view.

Fig. 6 is each part assembly drawing in the copper pipe of vertical section of the present utility model.

Fig. 7 is the assembling structure schematic diagram at big inner-ring bearing of the present utility model.

Fig. 8 is that the bearing holder (housing, cover) at big inner-ring bearing of the present utility model disassembles schematic diagram.

Fig. 9 is the assembling structure schematic diagram at small inner-ring bearing of the present utility model.

Figure 10 is that the bearing holder (housing, cover) at small inner-ring bearing of the present utility model disassembles schematic diagram.

Figure 11 is that schematic diagram is disassembled in horizontal rotation impeller of the present utility model and rotating shaft.

Figure 12 is that axial-flow windwheel pin of the present utility model and bottom right axial flow rotary wind wheel disassemble schematic diagram.

Figure 13 is the structural representation of rotating shaft of the present utility model.

Figure 14 is wind direction flow schematic diagram of the present utility model.

The label being related in figure：1- horizontal rotations impeller, 1001- cylindrical central sleeves, 1002- flabellums, 1003- horizontal impeller pins Nail, 2- rotating shafts, 2001- horizontal impellers construction section, 2002- axial-flow windwheels construction section, the small inner-ring bearing construction sections of 2003-, 2004- impellers pin hole, 2005- axial-flow windwheels pin hole, 3- horizontal impellers pin, the big inner-ring bearings of 4-, 5- bearing holder (housing, cover)s, 5001- bearings mounting platform, 5002- bearing holder (housing, cover)s banking stop, 5003- bearing holder (housing, cover)s screw hole, 6- bottom rights axial flow rotary wind wheel, 6001- Bottom right axial flow rotary wind wheel pin hole, 7- upper right axial flow rotaries wind wheel, 8- axial-flow windwheels pin, the small inner-ring bearings of 9-, 10- copper pipes, 1010- screws mounting platform, 11- water tanks, 12- capillaries, 13- screws, 14- soil, 15- vegetation, the rotation of a- horizontal impellers Direction, b- air intakes direction, c- air-out directions.

Embodiment

A kind of full automatic municipal irrigation system for greenbelt of the utility model is made into one below with reference to drawings and examples The detailed description of step.

A kind of full automatic municipal irrigation system for greenbelt, including it is horizontal rotation impeller 1, rotating shaft 2, horizontal impeller pin 3, big Inner-ring bearing 4, bearing holder (housing, cover) 5, bottom right axial flow rotary wind wheel 6, upper right axial flow rotary wind wheel 7, axial-flow windwheel pin 8, small inner-ring bearing 9, Copper pipe 10, water tank 11, capillary 12, screw 13.

Present apparatus system is divided into air intake part, air-outlet part, cooling segment, containment portion, five parts of transport portion：

In the part that the air intake part and air-outlet part are included, only bottom right axial flow rotary wind wheel 6, upper right axial flow rotary wind Take turns 7 structures different.

The inlet section subpackage is containing a horizontal rotation impeller 1, and a rotating shaft 2, a horizontal impeller pin 3 is one big Inner-ring bearing 4, four bearing holder (housing, cover)s 5, a bottom right axial flow rotary wind wheel 6, an axial-flow windwheel pin 8, one small inner-ring bearing 9, Four screws 13；

The air-outlet part includes a horizontal rotation impeller 1, and a rotating shaft 2, a horizontal impeller pin 3 is one big Inner-ring bearing 4, four bearing holder (housing, cover)s 5, a upper right axial flow rotary wind wheel 6, an axial-flow windwheel pin 8, one small inner-ring bearing 9, Four screws 13；

As shown in Fig. 3, Fig. 6, Figure 11, the flabellum 1002 of the horizontal rotation impeller 1 is arc flabellum symmetrical above and below, from When right wind is on flabellum 1002, because the resistance that concave face is produced is more than the resistance that crowning is produced, so horizontal rotation leaf Wheel 1 can rotate along the direction of concave face.The center section of the horizontal rotation impeller 1 is a cylindrical central sleeve 1001, center Pin hole 1003 is opened up on the external cylindrical surface of cylinder 1001, horizontal impeller pin 3 passes through pin hole 1003, impeller 1 will be horizontally rotated It is fixed on the most top section of rotating shaft 2.

As shown in figure 13, the rotating shaft 2 is cylindric, and the area segments that four external diameters are not waited are divided into from top to bottom, section is most pushed up External diameter be time big, be horizontal impeller construction section 2001, radially offer impeller pin hole 2004；The external diameter of downward second segment Maximum, any part is not installed above, and effect is to separate horizontal rotation impeller 1 with axial-flow windwheel, prevents from horizontally rotating leaf The flabellum 1002 of wheel 1 touches axial-flow windwheel；Downward 3rd section of external diameter be also time it is big, it is outer with horizontal impeller construction section 2001 Footpath is equal, is axial-flow windwheel construction section 2002, radially offers axial-flow windwheel pin hole 2005；The minimum outer diameter of most bottom section, be Small inner-ring bearing construction section 2003.

The inner ring internal diameter of the big inner-ring bearing 4 is larger, and inner ring is arranged on the axial-flow windwheel construction section 2002 of rotating shaft 2, top Face is abutted against in the largest outside diameter section of rotating shaft 2；The inner ring internal diameter of the small inner-ring bearing 9 is smaller, and inner ring is arranged on rotating shaft 2 most In the section of bottom, top surface is abutted against on axial-flow windwheel construction section 2002.

Further, the big inner-ring bearing 4 and the outer ring external diameter of small inner-ring bearing 9 are identical with thickness, Wei Yiqu Be not big inner-ring bearing 4 inner ring internal diameter be more than small inner-ring bearing 9.

Further, the inner ring thickness of the big inner-ring bearing 4 and small inner-ring bearing 9 is respectively less than outer ring thickness.

As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, the most inside structure 5001 of the bearing holder (housing, cover) 5 is shaped as what is splitted along axis Half of circular tube shaped, bottom is provided with baffle structure, the outer ring for loading bearing；The outboard structure of the bearing holder (housing, cover) 5 is ear In the middle part of loop configuration 5002, the side of loop configuration, screw hole 5003 is offered inwardly, copper pipe 10 is assemblied in by screw 13 In vertical section.

Further, as shown in Fig. 7, Fig. 9, bearing holder (housing, cover) 5 is docked two-by-two, and every a pair of bearing holder (housing, cover)s 5 carry a bearing.

Further, as shown in Fig. 8, Figure 10, the bottom catch of bearing holder (housing, cover) 5 offers semicircular indentations, avoids rotating shaft 2.

As shown in Fig. 6, Figure 12, the bottom right axial flow rotary wind wheel 6 in side view angle, wheel blade spiral to the right and under；Institute Upper right axial flow rotary wind wheel 7 is stated in side view angle, wheel blade spirals up to upper right side；On the cylindrical central sleeve 1001 of two axial-flow windwheels Pin hole is offered, is fixed on by axial-flow windwheel pin 8 in rotating shaft 2.

The part of the cooling segment is mainly copper pipe 10, and the top section of copper pipe 10 is vertical shape, and remainder is helical form, The copper pipe 10 has a two pieces, is used for the part for installing air intake part in the vertical section of a copper pipe 10, another copper pipe 10 it is perpendicular It is used for the part for installing air-outlet part in straight section；The tail end of two copper pipes 10 is put in the water tank 11 of bottommost.

Further, spiral helicine copper pipe 10 can increase the path length of air transmission, increase outside heat as far as possible empty The contact area of gas and copper pipe 10.

Further, as shown in Figure 4, Figure 5, the top vertical section of the copper pipe 10, is installed at screw hole provided with screw Platform 1010, is easy to fix screw 13.

The screw 13 loads from the screw hole of copper pipe 10, is assemblied in the screw hole 5003 of bearing holder (housing, cover).

As shown in Figure 1, Figure 2, shown in Figure 14, the part of the containment portion is mainly water tank 11, and the water tank 11 is top The column that portion is big, bottom is small, inner hollow, top of described two copper pipes 10 respectively from water tank 11 is stretched into.

Further, the material of the water tank 11 is metallic copper.

As shown in figure 14, the part of the transport portion is mainly capillary 12, and the capillary 12 is from water tank 11 Bottom is stretched into, and the other end extends to the vegetable layer of earth's surface.

Further, the material of the capillary 12 is yarn.Yarn is to be processed into certain fineness with various textile fabrics Product, the yarn in the present embodiment uses cotton fiber, the ability with good conveying moisture.

As shown in figure 14, air blows two horizontal rotation impellers 1 and rotated, and drives rotating shaft 2 to rotate, last band moving axis stream wind Wheel rotation.The steering of two horizontal rotation impellers 1 is identical, but air intake part, the wheel blade of the axial-flow windwheel of air-outlet part Arragement direction enters present apparatus system on the contrary, ultimately resulting in air from air intake part, and present apparatus system is discharged from air-outlet part.

Underground temperature and its depth have certain rule, from earth's surface to earth's surface under tens meters of depth in, soil temperature Degree is with the increase and reduction of depth；Then the soil moisture increases with the increase of depth still further below.Using this rule, it will store up Water pot 11 is embedded in the minimum soil horizon of temperature, and the depth various regions of the minimum soil horizon of temperature are different, typically at several meters to more than ten meters Between in the range of.

Analyzed from price and performance perspective, metallic copper is optimal Heat Conduction Material.The higher air of external temperature is being flowed through When air intake copper pipe, water tank 11, air-out copper pipe, occurs condensation, part vaporous water is converted to aqueous water, is attached to copper pipe 10 It is final to import in water tank 11 on inwall.Last capillary 12 conducts the water in water tank 11 to vegetable layer, is provided for vegetation Water Energy.

The installation steps of the present embodiment are：Good copper pipe 10, water tank 11, capillary 12 are buried in advance；First by downside A pair of bearings set 5, is arranged in copper pipe 10 by screw 13；Then successively by big inner-ring bearing 4, axial-flow windwheel, small inner ring axle 9 are held to be arranged in rotating shaft 2；Then a pair of bearings of upside is covered 5, touch big inner-ring bearing 4, big inner ring axle is clamped with instrument 4 are held, assembly of rotary shaft is put into copper pipe 10, as shown in figure 4, fixing a pair of bearings set 5 of upside finally by screw 13 Firmly；Finally horizontal rotation impeller 1 is assembled in rotating shaft 2.

It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed Change or replacement, should all cover within protection domain of the present utility model.

Claims (5)

1. a kind of full automatic municipal irrigation system for greenbelt, it is characterised in that：Including horizontal rotation impeller (1), rotating shaft (2), water Flat impeller pin (3), big inner-ring bearing (4), bearing holder (housing, cover) (5), bottom right axial flow rotary wind wheel (6), upper right axial flow rotary wind wheel (7), axle Flow wind wheel pin (8), small inner-ring bearing (9), copper pipe (10), water tank (11), capillary (12), screw (13)；

Present apparatus system is divided into air intake part, air-outlet part, cooling segment, containment portion, five parts of transport portion：

In the part that the air intake part and air-outlet part are included, only bottom right axial flow rotary wind wheel (6), upper right axial flow rotary wind wheel (7) structure is different；

The inlet section subpackage is containing a horizontal rotation impeller (1), a rotating shaft (2), a horizontal impeller pin (3), one Big inner-ring bearing (4), four bearing holder (housing, cover)s (5), a bottom right axial flow rotary wind wheel (6), an axial-flow windwheel pin (8) is one small Inner-ring bearing (9), four screws (13)；

The air-outlet part includes a horizontal rotation impeller (1), a rotating shaft (2), a horizontal impeller pin (3), one Big inner-ring bearing (4), four bearing holder (housing, cover)s (5), a upper right axial flow rotary wind wheel (6), an axial-flow windwheel pin (8) is one small Inner-ring bearing (9), four screws (13)；

The flabellum (1002) of the horizontal rotation impeller (1) is arc flabellum symmetrical above and below, and natural wind blows to flabellum (1002) When upper, because the resistance that concave face is produced is more than the resistance that crowning is produced, so horizontal rotation impeller (1) can be along concave face Direction rotate；The center section of the horizontal rotation impeller (1) is outside a cylindrical central sleeve (1001), cylindrical central sleeve (1001) Pin hole (1003) is opened up on the face of cylinder, horizontal impeller pin (3) passes through pin hole (1003), and horizontal rotation impeller (1) is solid It is scheduled on the most top section of rotating shaft (2)；

The rotating shaft (2) is cylindric, and the area segments that four external diameters are not waited are divided into from top to bottom, and the external diameter for most pushing up section is secondary big , it is horizontal impeller construction section (2001), radially offers impeller pin hole (2004)；The largest outside diameter of downward second segment, on Any part is not installed in face, and effect is to separate horizontal rotation impeller (1) with axial-flow windwheel, prevents horizontal rotation impeller (1) Flabellum (1002) touch axial-flow windwheel；Downward 3rd section of external diameter is also secondary big, with horizontal impeller construction section (2001) External diameter is equal, is axial-flow windwheel construction section (2002), radially offers axial-flow windwheel pin hole (2005)；The external diameter of most bottom section is most It is small, it is small inner-ring bearing construction section (2003)；

The inner ring internal diameter of the big inner-ring bearing (4) is larger, and inner ring is arranged on the axial-flow windwheel construction section (2002) of rotating shaft (2), Top surface is abutted against in the largest outside diameter section of rotating shaft (2)；The inner ring internal diameter of the small inner-ring bearing (9) is smaller, and inner ring, which is arranged on, to be turned In the most bottom section of axle (2), top surface is abutted against on axial-flow windwheel construction section (2002)；

The most inside structure (5001) of the bearing holder (housing, cover) (5) is shaped as half of the circular tube shaped splitted along axis, and bottom is provided with catch Structure, the outer ring for loading bearing；The outboard structure of the bearing holder (housing, cover) (5) is the loop configuration (5002) of ear, ring junction In the middle part of the side of structure, screw hole (5003) is offered inwardly, is assemblied in by screw (13) in the vertical section of copper pipe (10)；

The bottom right axial flow rotary wind wheel (6) in side view angle, wheel blade spiral to the right and under；The upper right axial flow rotary wind wheel (7) in side view angle, wheel blade spirals up to upper right side；Pin is offered on the cylindrical central sleeve (1001) of two axial-flow windwheels Hole, is fixed in rotating shaft (2) by axial-flow windwheel pin (8)；

The part of the cooling segment is mainly copper pipe (10), and the top section of copper pipe (10) is vertical shape, and remainder is helical form, The copper pipe (10) has the part for being used to install air intake part in two pieces, the vertical section of a copper pipe (10), another copper pipe (10) it is used for the part for installing air-outlet part in vertical section；The tail end of two copper pipes (10) puts in the water tank of bottommost (11) in；

The screw (13) loads from the screw hole of copper pipe (10), is assemblied in the screw hole of bearing holder (housing, cover) (5003)；

The part of the containment portion is mainly water tank (11), and the water tank (11) is the column that top is big, bottom is small, Inner hollow, described two copper pipes (10) are stretched at the top of water tank (11) respectively；

The part of the transport portion is mainly capillary (12), and the capillary (12) is stretched into from the bottom of water tank (11), The other end extends to the vegetable layer of earth's surface.

2. full automatic municipal irrigation system for greenbelt according to claim 1, it is characterised in that：The big inner-ring bearing (4) the outer ring external diameter with small inner-ring bearing (9) is identical with thickness, and unique difference is the inner ring internal diameter of big inner-ring bearing (4) More than small inner-ring bearing (9)；The inner ring thickness of the big inner-ring bearing (4) and small inner-ring bearing (9) is respectively less than outer ring thickness.

3. full automatic municipal irrigation system for greenbelt according to claim 1, it is characterised in that：The top of the copper pipe (10) Portion's vertical section, screw mounting platform (1010) is provided with screw hole, is easy to fix screw (13).

4. full automatic municipal irrigation system for greenbelt according to claim 1, it is characterised in that：The water tank (11) Material is metallic copper.

5. full automatic municipal irrigation system for greenbelt according to claim 1, it is characterised in that：The capillary (12) Material is yarn.