A garden green plant system of a park under a viaduct and a layout method thereof

Abstract

The application relates to a garden green plant system of a park under an overpass and a layout method thereof, and belongs to the technical field of garden irrigation. The system comprises a vegetation layer, a water inlet pipeline is arranged on the vegetation layer, a pressure assembly and a spray head are arranged on the water inlet pipeline; the pressure assembly comprises a pressure cylinder, a sealing plug, an elastic piece and a partition plate, the open end of the pressure cylinder is in communication with the inside of the water inlet pipeline, the inside of the pressure cylinder is divided into a sealing cavity and a communication cavity by the partition plate fixed in the pressure cylinder, the communication cavity is located at the communication position of the pressure cylinder and the water inlet pipeline, the sealing plug is slidingly arranged in the communication cavity, the circumferential sidewall of the sealing plug is in sliding abutment with the inner wall of the communication cavity, the elastic piece is located on the side, away from the water inlet pipeline, of the sealing plug, the elastic piece pushes the sealing plug to move close to the water inlet pipeline, a through hole is arranged on the partition plate, and the spray head is in communication with the inside of the sealing cavity; a pressure adjusting assembly for adjusting the posture of the elastic piece is arranged on the pressure cylinder, and the application has the effect of different water quantity irrigation on different types of vegetation.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of garden irrigation, in particular to a garden green plant system of a park under a viaduct and a layout method thereof. BACKGROUND

[0002] With the acceleration of urbanization, urban viaducts are widely used as important facilities to alleviate traffic pressure. However, the space under the viaduct often becomes a neglected corner of the city, and the greening and beautification work faces many challenges.

[0003] Because of the limited light conditions under the viaduct, shade-loving vegetation is selected during the process of greening vegetation coverage. The vegetation is irrigated regularly by sanitation workers through water trucks or municipal pipe networks. The sanitation workers open the nearby municipal manhole covers, connect the water supply pipes, and then irrigate the vegetation using the water in the municipal pipe network.

[0004] With the increase of urban greening and beautification, the greening vegetation under the viaduct is not limited to a single type of vegetation. Instead, multiple types of vegetation are used to cover and improve the beautification effect. However, different types of vegetation have different water requirements, and there is a deficiency in distinguishing between irrigation and non-irrigation. SUMMARY

[0005] In order to irrigate different types of vegetation with different water amounts, the application provides a garden green plant system of a park under a viaduct and a layout method thereof.

[0006] In a first aspect, the application provides a garden green plant system of a park under a viaduct and a layout method thereof, which adopts the following technical solution:

[0007] A garden green plant system of a park under a viaduct, comprising a vegetation layer, a water inlet pipe arranged on the vegetation layer, one end of the water inlet pipe being used to communicate with a municipal pipe, a pressure assembly and a spray head being arranged on the water inlet pipe, the number of pressure assemblies and spray heads being arranged corresponding to the number of types of green plants in the vegetation layer; the pressure assembly comprises a pressure cylinder, a sealing plug, an elastic member and a partition plate, the open end of the pressure cylinder is in communication with the inside of the water inlet pipe, the partition plate is fixed inside the pressure cylinder to divide the inside of the pressure cylinder into a sealed cavity and a communication cavity, the communication cavity is located at the communication position of the pressure cylinder and the water inlet pipe, the sealing plug is slidingly arranged in the communication cavity, the circumferential sidewall of the sealing plug slidingly abuts against the inner wall of the communication cavity, the elastic member is located on the side of the sealing plug away from the water inlet pipe, the elastic member pushes the sealing plug to move towards the water inlet pipe, a through hole is formed in the partition plate, and the spray head is in communication with the inside of the sealed cavity; a pressure adjusting assembly for adjusting the posture of the elastic member is arranged on the pressure cylinder.

[0008] By adopting the technical scheme, the initial pressure resistance of the pressure assembly is adjusted by the pressure adjusting assembly, the posture of the elastic piece is adjusted by the pressure adjusting assembly, the municipal pipeline sends water into the water inlet pipeline, the water pressure in the municipal pipeline is constant, the initial state of the elastic piece in the pressure assembly at different positions is different, the irrigation water enters the communication cavity to extrude and push the sealing plug to move, the sealing plug extrudes the elastic piece, the sealing plug continuously moves until the through hole is leaked, the irrigation water enters the sealing cavity through the through hole and is finally sprayed out through the spray head, because the initial position and posture of the elastic piece are different, the area of the through hole leaked after the sealing plug at different positions is moved by the irrigation water with a certain water pressure is different, which leads to different water flow through the through hole, and finally the effect of irrigating different regions of vegetation with different water amounts is realized.

[0009] Optionally, the pressure adjusting assembly comprises a pressure adjusting bolt and a backing plate, the backing plate is located in the communication cavity, the pressure adjusting bolt penetrates the pressure cylinder to be rotationally connected with the backing plate in the communication cavity, the pressure adjusting bolt is threadedly connected with the pressure cylinder, and the backing plate rotates relative to the pressure adjusting bolt, and the side of the backing plate away from the pressure adjusting bolt abuts against the elastic piece.

[0010] By adopting the technical scheme, the position of the backing plate changes when the pressure adjusting bolt is rotated, the position of the elastic piece relative to the pressure cylinder changes when the backing plate pushes the elastic piece, that is, the initial position of the elastic piece relative to the through hole changes, and the sealing plug moves by different distances to expose the through hole.

[0011] Optionally, the thickness of the sealing plug is greater than the diameter of the through hole.

[0012] By adopting the technical scheme, the irrigation water cannot bypass the sealing plug to enter the space where the elastic piece is located, and the stable use environment of the elastic piece is ensured.

[0013] Optionally, the vegetation layer is paved with a through path and a curbstone, the curbstone is paved along the edge of the through path, the curbstone is hollow inside, the water inlet pipeline is placed in the space formed by the curbstone, and the pressure cylinder penetrates the curbstone.

[0014] By adopting the technical scheme, the through path facilitates pedestrians to pass through the vegetation layer, the curbstone blocks the phenomenon that the irrigation water flows onto the through path, and the curbstone also provides a placement space for the water inlet pipeline.

[0015] Optionally, a protective cover is arranged on the curbstone, and the pressure cylinder is located in the protective cover.

[0016] By adopting the technical scheme, the protective cover protects the pressure assembly, and the external impact is borne by the protective cover.

[0017] Optionally, the protective cover comprises fixing petals and adjusting petals, both of which are provided with two and symmetrically distributed, the fixing petals are fixedly connected with the top of the curb, the adjusting petals are rotationally connected with the top of the curb and the rotation shaft is horizontally arranged, and the side walls of the adjacent adjusting petals are magnetically adsorbed to each other; in the state that the adjacent adjusting petals are magnetically adsorbed to each other, the vertical section of the protective cover is in the form of a closed half circle, and after the adjacent adjusting petals swing away from each other, the adjusting petals are located outside the corresponding fixing petals, and the protective cover is in an open state.

[0018] By adopting the above technical scheme, the opening and closing of the protective cover are realized by adjusting the position of the petals relative to the protective petals, and the overall operation is simple and convenient.

[0019] Optionally, the outer wall of the fixing petals is fixed with a one-way rack, the length direction of the one-way rack is arranged along the direction in which the adjusting petals swing, a limiting pin is slidably arranged on the adjusting petals, the limiting pin is arranged through the adjusting petals, the limiting pin slides along the direction of approaching or moving away from the one-way rack, a spring for moving the limiting pin to the position close to the one-way rack is arranged on the adjusting petals, and the end of the limiting pin abuts against the one-way rack to prevent the protective cover from being opened.

[0020] By adopting the above technical scheme, the abutment of the limiting pin and the one-way rack can prevent the protective cover from being automatically opened due to vibration or strong wind, so that the protective cover is in a stable closed state when it is not needed to be opened.

[0021] Optionally, a groove is formed in the outer wall of the fixing petals, the groove is formed along the length direction of the one-way rack, and the one-way rack is located in the groove.

[0022] By adopting the above technical scheme, since the closed state of the protective cover is in the form of a half sphere and the one-way rack is exposed on the outer wall of the fixing petals, the one-way rack is hidden and stored in the groove, thereby improving the safety and avoiding the phenomenon that pedestrians accidentally knock the one-way rack on the protective cover and cause scratches.

[0023] Optionally, an extension pipe is received in the curb, one end of the extension pipe is used to communicate with the sealed cavity of the pressure cylinder, and the other end is connected with the spray head.

[0024] By adopting the above technical scheme, when the plants on the vegetation layer grow taller, the vertical height of the spray head can be increased through the extension pipe, so that the vegetation layer can be sprayed and irrigated.

[0025] In a second aspect, the application provides a garden green plant system of a park under a viaduct and a layout method thereof, which adopts the following technical scheme:

[0026] A garden green plant system of a park under a viaduct and a layout method thereof, comprising the following steps:

[0027] S1, laying a vegetation layer, from the direction away from the pier of the viaduct, in the order of water preference of the vegetation from high to low, laying the vegetation;

[0028] S2, laying the through path and the curbstone, forming a connection on the left and right sides of the space under the viaduct;

[0029] S3, laying the water inlet pipe in the curbstone, and installing the pressure assembly and the spray head, and arranging the pressure assembly and the spray head uniformly on the side of different vegetation areas;

[0030] S4, setting the pressure resistance of the pressure assembly according to the water preference degree of different vegetation, so that the spray heads at different positions of the pressure assembly have different water discharge amounts when the municipal pipeline sends water into the water inlet pipe.

[0031] By adopting the above technical scheme, since the viaduct is shaded and humid, the vegetation laid under the viaduct is all shade-loving plants, and since the pier is the most humid, the vegetation laid at the pier is the most water-loving. By adjusting the pressure assembly, the spray heads at different positions have different water discharge amounts, and the irrigation water amounts of different areas of different water preference degrees of vegetation are different.

[0032] In summary, the present application has at least one of the following beneficial technical effects:

[0033] 1. Rotating the pressure regulating bolt to adjust the initial posture and position of the elastic member, thereby adjusting the initial pressure resistance of the pressure assembly. The initial position and posture of the elastic member are different, the water pressure is certain, the irrigation water pushes the sealing plug at different positions to move, the through hole area of the sealing plug at different positions is different, the water flow through the through hole is different, and finally the effect of irrigating different areas of vegetation with different water amounts is achieved.

[0034] 2. The protection of the protection cover to the pressure cylinder, and the setting of the one-way rack and the limiting pin make the protection cover more stable when it is closed, and it will not automatically open due to vibration. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0036] Figure 2 is a partial structure sectional view of the pressure assembly;

[0037] Figure 3 is Figure 2 is a local enlarged schematic diagram of part A in

[0038] Figure 4 is a partial structure sectional view of the protection cover;

[0039] Figure 5 is a structural schematic diagram of the extension pipe.

[0040] Explanation of reference signs: 1, vegetation layer; 11, through path; 12, curbstone; 2, water inlet pipe; 3, pressure assembly; 31, pressure cylinder; 32, sealing plug; 33, elastic member; 34, partition plate; 341, sealing cavity; 342, communication cavity; 4, through hole; 5, spray head; 6, pressure regulating assembly; 61, pressure regulating bolt; 62, backing plate; 7, protective cover; 71, fixed flap; 711, one-way rack; 712, groove; 72, adjusting flap; 721, limiting pin; 722, spring; 8, extension pipe. DETAILED DESCRIPTION

[0041] The following will be described in detail below with reference to the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0042] The embodiment of the present application discloses a garden green plant system of a park under a viaduct.

[0043] Reference Figure 1 The garden green plant system of the park under the viaduct comprises a vegetation layer 1, a water inlet pipe 2 and a pressure assembly 3, the vegetation layer 1 adopts shade-loving plants, the vegetation layer 1 is composed of multiple plants, and the plants are laid in the order of decreasing water preference along the direction away from the pier of the viaduct, that is, the vegetation closest to the pier is the plant with the highest water preference, for example, the vegetation is divided into four types, and the order of water preference is respectively Octopus Lily, Hosta, Ophiopogon and Small-leaf Euonymus, wherein the Octopus Lily is laid closest to the pier.

[0044] Reference Figure 1 The vegetation layer 1 is also laid with a through path 11, the through path 11 communicates the spaces on the left and right sides under the viaduct, so that pedestrians can cross the vegetation layer 1. The through path 11 is laid with curbstones 12 on both sides along the length direction of the through path 11, the inside of a single curbstone 12 is hollow, and the water inlet pipe 2 is laid in the space formed by all the curbstones 12 on one side of the through path 11.

[0045] Reference Figure 2 and Figure 3The pressure assembly 3 is provided with multiple pressure cylinders 31, sealing plugs 32, elastic members 33 and partitions 34. The pressure cylinder 31 is vertically arranged, and the bottom opening end of the pressure cylinder 31 is communicated with the water inlet pipeline 2, and the top of the pressure cylinder 31 penetrates the top of the curbstone 12. The partition 34 is fixed in the pressure cylinder 31, and divides the space in the pressure cylinder 31 into left and right two parts, which are a sealing cavity 341 and a communication cavity 342 respectively. The bottom of the pressure cylinder 31 is located at the communication cavity 342, and the sealing cavity 341 is in a sealed state as a whole. A through hole 4 is formed in the partition 34, and the through hole 4 communicates the sealing cavity 341 and the communication cavity 342. The water inlet pipeline 2 is provided with a spray head 5, and the number of the spray heads 5 is the same as that of the pressure assemblies 3. The spray head 5 is threadedly connected with the top of the pressure cylinder 31, and the connection is located at the top of the sealing cavity 341. The spray head 5 is communicated with the inside of the sealing cavity 341. The elastic member 33 and the sealing plug 32 are located in the communication cavity 342. The elastic member 33 is located on the side of the sealing plug 32 away from the water inlet pipeline 2. The circumferential sidewall of the sealing plug 32 is tightly abutted with the inner wall of the sealing cavity 341. The thickness of the sealing plug 32 is greater than the diameter of the through hole 4. The elastic member 33 can be a common spring.

[0046] Referring to Figure 3 The pressure cylinder 31 is provided with a pressure regulating assembly 6. The pressure regulating assembly 6 comprises a pressure regulating bolt 61 and a pad 62. The pad 62 is located in the communication cavity 342, and the pressure regulating bolt 61 is rotatably connected with the pad 62 by penetrating the pressure cylinder 31 into the communication cavity 342. The pressure regulating bolt 61 is threadedly connected with the pressure cylinder 31. The pad 62 rotates relative to the pressure regulating bolt 61. The side of the pad 62 away from the pressure regulating bolt 61 is abutted with the top end of the elastic member 33. The bottom end of the elastic member 33 is fixedly connected with the sealing plug 32.

[0047] Referring to Figure 3 And Figure 4 The curbstone 12 is provided with a protective cover 7, and the number of the protective covers 7 is corresponding to the number of the pressure cylinders 31. The protective cover 7 comprises fixed petals 71 and adjusting petals 72. The fixed petals 71 and the adjusting petals 72 are both provided with two and symmetrically distributed. The cross section of the protective cover 7 composed of the fixed petals 71 and the adjusting petals 72 is semicircular, and is buckled on the top of the curbstone 12 and encloses the pressure cylinder 31. The fixed petals 71 are fixedly connected with the top of the curbstone 12. The adjusting petals 72 are rotatably connected with the top of the curbstone 12, and the rotation shaft is horizontally arranged. The sidewalls of the adjacent adjusting petals 72 that are close to each other are magnetically attracted. The magnetic stones can be installed on the adjusting petals 72 to realize the magnetic attraction. The magnetic stones are not shown in the figure.

[0048] Referring to Figure 3 And Figure 4The outer wall of the fixed petal 71 is provided with a groove 712, and the outer wall of the fixed petal 71 is fixed with a one-way rack 711, the length direction of the one-way rack 711 is arranged along the swinging direction of the adjusting petal 72, the groove 712 is arranged along the length direction of the one-way rack 711, the one-way rack 711 is located in the groove 712, a limiting pin 721 is slidingly arranged on the adjusting petal 72, the limiting pin 721 penetrates through the adjusting petal 72 and is arranged, the limiting pin 721 slides along the direction close to or away from the one-way rack 711, a spring 722 is arranged on the adjusting petal 72, the spring 722 is located between the outer wall of the fixed petal 71 and the inner wall of the adjusting petal 72, the spring 722 is sleeved on the limiting pin 721, one end of the spring 722 is fixedly connected with the limiting pin 721, and the other end is fixedly connected with the inner wall of the adjusting petal 72; the spring 722 pushes the limiting pin 721 to move to the direction close to the one-way rack 711, the end of the limiting pin 721 abuts against the one-way rack 711, the teeth of the one-way rack 711 are inclined, and the end of the limiting pin 721 abuts against the one-way rack 711 to prevent the protective cover 7 from being opened. In the mutual magnetic adsorption state of the adjacent adjusting petals 72, the protective cover 7 is in a closed state, and after the adjacent adjusting petals 72 swing away from each other, the adjusting petal 72 is located outside the corresponding fixed petal 71, and the protective cover 7 is in an open state.

[0049] Reference Figure 3 and Figure 5 The extension pipe 8 is accommodated in the curbstone 12, one end of the extension pipe 8 is used for being in communication with the sealing cavity 341 of the pressure cylinder 31, the other end is connected with the spray head 5, and when it is necessary to increase the height at which the spray head 5 is located, the extension pipe 8 can be installed between the spray head 5 and the pressure cylinder 31.

[0050] The implementation principle of the garden green plant system of the park under the viaduct in the embodiment of the application is as follows: the initial posture and position of the elastic element 33 are adjusted by rotating the pressure regulating bolt 61, so that the initial pressure resistance of the pressure assembly 3 is adjusted; the municipal pipeline sends water into the water inlet pipeline 2, the water pressure in the municipal pipeline is constant, the initial states of the elastic elements 33 in the pressure assemblies 3 at different positions are different, the irrigation water enters the communication cavity 342, extrudes and pushes the sealing plug 32 to move, the sealing plug 32 extrudes the elastic element 33, the sealing plug 32 continuously moves until the leakage hole 4, the irrigation water passes through the leakage hole 4 into the sealing cavity 341 and is finally sprayed out through the spray head 5, and because the initial positions and postures of the elastic elements 33 are different, the areas of the leakage holes 4 through which the sealing plugs 32 move after the irrigation water with a certain water pressure pushes the sealing plugs 32 are different, so that the water flow through the leakage holes 4 is different, and finally the effect of irrigating different regions of vegetation with different water amounts is realized.

[0051] The embodiment of the application further discloses a layout method of the garden green plant system of the park under the viaduct.

[0052] The method comprises the following steps:

[0053] S1, laying the vegetation layer 1, from the direction away from the pier of the viaduct, the vegetation is laid according to the order from high to low of the water-loving degree of the vegetation;

[0054] S2, laying the through path 11 and the curb stone 12, forming the communication on the left and right sides of the space below the viaduct;

[0055] S3, laying the water inlet pipe 2 in the curb stone 12, and installing the pressure assembly 3 and the nozzle 5, and the pressure assembly 3 and the nozzle 5 are arranged uniformly beside the different vegetation areas;

[0056] S4, according to the water-loving degree of the different vegetation, setting the pressure resistance of the pressure assembly 3, so that the water outlet amount of the nozzle 5 at the different positions of the pressure assembly 3 is different when the municipal pipeline sends water into the water inlet pipe 2.

[0057] The embodiments of the specific implementation are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A garden green plant system of a park under a viaduct, comprising a vegetation layer (1), characterized in that: The vegetation layer (1) is laid with a water inlet pipeline (2), one end of the water inlet pipeline (2) is used for communicating with a municipal pipeline, the water inlet pipeline (2) is provided with a pressure assembly (3) and a spray head (5), the number of the pressure assembly (3) and the spray head (5) is corresponding to the number of the types of green plants in the vegetation layer (1); the pressure assembly (3) comprises a pressure cylinder (31), a sealing plug (32), an elastic piece (33) and a partition plate (34), the pressure cylinder (31) is communicated with the inside of the water inlet pipeline (2) at the open end, the partition plate (34) is fixed in the inside of the pressure cylinder (31) and divides the inside of the pressure cylinder (31) into a sealed cavity (341) and a communicating cavity (342), the communicating cavity (342) is located at the communicating position of the pressure cylinder (31) and the water inlet pipeline (2), the sealing plug (32) is slidably arranged in the communicating cavity (342), the circumferential sidewall of the sealing plug (32) is slidably abutted with the inner wall of the communicating cavity (342), the elastic piece (33) is located on the side, away from the water inlet pipeline (2), of the sealing plug (32), the elastic piece (33) pushes the sealing plug (32) to move towards the water inlet pipeline (2), the partition plate (34) is provided with a through hole (4), and the spray head (5) is communicated with the inside of the sealed cavity (341); the pressure cylinder (31) is provided with a pressure adjusting assembly (6) for adjusting the posture of the elastic piece (33). 2.The garden green plant system of the park under the viaduct according to claim 1, characterized in that: The pressure adjusting assembly (6) comprises a pressure adjusting bolt (61) and a backing plate (62), the backing plate (62) is located in the communicating cavity (342), the pressure adjusting bolt (61) is rotatably connected with the backing plate (62) by penetrating the pressure cylinder (31) into the communicating cavity (342), the pressure adjusting bolt (61) is threadedly connected with the pressure cylinder (31), the backing plate (62) rotates relative to the pressure adjusting bolt (61), and the side, away from the pressure adjusting bolt (61), of the backing plate (62) is abutted with the elastic piece (33). 3.The garden green plant system of the park under the viaduct according to claim 1, characterized in that: The thickness of the sealing plug (32) is greater than the diameter of the through hole (4).

4. The garden green plant system of the park under viaduct according to claim 1, characterized in that: The vegetation layer (1) is laid with a passing path (11) and a curbstone (12), the curbstone (12) is laid along the edge of the passing path (11), the curbstone (12) is hollow, the water inlet pipeline (2) is placed in the space formed by the curbstone (12), and the pressure cylinder (31) penetrates the curbstone (12).

5. The garden greenery system of the under-bridge park according to claim 4, wherein: The curbstone (12) is provided with a protective cover (7), and the pressure cylinder (31) is located in the protective cover (7).

6. The garden greenery system of the park under viaduct according to claim 5, characterized in that: The protective cover (7) comprises fixed petals (71) and adjusting petals (72), the fixed petals (71) and the adjusting petals (72) are both provided with two and are symmetrically distributed, the fixed petals (71) are fixedly connected with the top of the curbstone (12), the adjusting petals (72) are rotatably connected with the top of the curbstone (12) and the rotating shafts are horizontally arranged, and the sidewalls of the adjacent adjusting petals (72) are magnetically adsorbed to each other; in the state that the adjacent adjusting petals (72) are magnetically adsorbed to each other, the vertical section of the protective cover (7) is in the form of a semicircular closure, after the adjacent adjusting petals (72) swing away from each other, the adjusting petals (72) are located outside the corresponding fixed petals (71), and the protective cover (7) is in an open state.

7. The garden greenery system of the under-highway bridge park according to claim 6, characterized in that: The fixed flap (71) is externally provided with a one-way rack (711), the length direction of the one-way rack (711) is arranged along the swinging direction of the adjusting flap (72), the adjusting flap (72) is slidably provided with a limiting pin (721), the limiting pin (721) penetrates the adjusting flap (72) and is arranged, the limiting pin (721) slides along the direction of approaching or moving away from the one-way rack (711), the adjusting flap (72) is provided with a spring (722) for the limiting pin (721) to move towards the one-way rack (711), and the end of the limiting pin (721) abuts against the one-way rack (711) to prevent the protective cover (7) from being opened. 8.The garden green plant system of the park under viaduct according to claim 7, characterized in that: The fixed flap (71) is externally provided with a one-way rack (711), the length direction of the one-way rack (711) is arranged along the swinging direction of the adjusting flap (72), the adjusting flap (72) is slidably provided with a limiting pin (721), the limiting pin (721) penetrates the adjusting flap (72) and is arranged, the limiting pin (721) slides along the direction of approaching or moving away from the one-way rack (711), the adjusting flap (72) is provided with a spring (722) for the limiting pin (721) to move towards the one-way rack (711), and the end of the limiting pin (721) abuts against the one-way rack (711) to prevent the protective cover (7) from being opened. 9.The garden green plant system of the under-bridge park of claim 4, wherein: The curbstone (12) is internally provided with an extension pipe (8), one end of the extension pipe (8) is used for communicating with the sealing cavity (341) of the pressure cylinder (31), and the other end is connected with the spray head (5).

10. The arrangement method of the garden green plant system of the park under the viaduct, the garden green plant system of the park under the viaduct is applied to the viaduct of claim 4, characterized in that: The method comprises the following steps: S1, laying a vegetation layer (1), from the direction away from the pier of the viaduct, laying vegetation in the order of water preference from high to low; S2, laying the through path (11) and the curbstone (12), forming a communication on the left and right sides of the space below the viaduct; S3, laying the water inlet pipe (2) in the curbstone (12), and installing the pressure assembly (3) and the spray head (5), and arranging the pressure assembly (3) and the spray head (5) on the side of different vegetation areas; S4, according to the water preference degree of different vegetation, setting the pressure capacity of the pressure assembly (3), so that the spray head (5) at different positions of the pressure assembly (3) has different water discharge amounts when the municipal pipeline sends water into the water inlet pipe (2).

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