Municipal road and construction method thereof

Abstract

The invention relates to the technical field of municipal engineering, in particular to a municipal road and a construction method thereof.The municipal road comprises a road body, and greening separation strips are arranged on the road body along the long sides of the road body; the water supply main pipe is buried in the road body; one end of the water supply branch pipe is communicated with the water supply main pipe, the other end of the water supply branch pipe is connected with a connecting cylinder, a water passing channel is formed in the connecting cylinder, and the connecting cylinder is buried in the road body; the end, away from the water supply branch pipe, of the connecting cylinder is connected with a water outlet pipe, the water outlet pipe is arranged in the greening separation zone, a cut-off piece is arranged in the connecting cylinder, a linkage piece is arranged on the water outlet pipe, and position change of the water outlet pipe drives the linkage piece to stop limiting the cut-off piece, so that the cut-off piece moves under the action of water flow in the water flow channel until the water passing channel is blocked; the device has the effect of reducing the possibility of water resource waste caused by damage of the green belt water outlet pipe due to vehicle collision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal engineering, in particular to a municipal road and a construction method thereof. BACKGROUND

[0002] With the continuous acceleration of urban development and construction, the demand and quality requirements of road construction are gradually increasing. In order to realize the separation and mutual interference of opposite lanes or motor lanes and non-motor lanes on some urban roads, a strip-shaped green belt is usually arranged on the road. In order to avoid the death of plants in the green belt, irrigation is needed to be carried out regularly. In order to reduce the manpower and material resources required for irrigation, an automatic irrigation system is usually pre-buried to supplement water to the plants.

[0003] A municipal green road is provided in the prior art, which comprises a planting box and a water collecting box arranged in the planting box. A water filtering plate is arranged in the planting box. A gravel layer is arranged on the water filtering plate. A soil layer is arranged on the gravel layer. A water outlet pipe is fixedly penetrated through the bottom wall of the planting box. The water outlet end of the water outlet pipe is fixedly penetrated through the side wall of the water collecting box. A drain pipe is fixedly penetrated through the side wall of the upper part of the water collecting box. The water inlet end of the water outlet pipe is higher than the water outlet end of the water outlet pipe. Two partitions are arranged in the middle of the planting box to divide the planting box into two planting belts. A water seepage groove is formed between the two partitions. A filter box is arranged between the two partitions. First filter holes are formed through the bottom wall of the filter box. A filter layer is arranged in the filter box. A placement plate is fixedly protruded on the upper part of the filter box and abuts against the partition.

[0004] For the related technology in the above, in the driving process of the vehicle, the vehicle may deviate from the normal driving lane and hit the green belt on the central or both sides of the road due to misoperation or vehicle impact and other reasons. In the process of impact, the water outlet pipe is likely to be torn, resulting in a large amount of waste of green irrigation water. SUMMARY

[0005] In order to reduce the possibility of water resource waste caused by damage of the water outlet pipe of the green belt due to vehicle impact, the present application provides a municipal road and a construction method thereof.

[0006] In a first aspect, the present application provides a municipal road, which adopts the following technical solution: A municipal road, comprising a road body, a green separation belt being arranged on the road body along the length of the road body; A water supply main pipe is buried in the road body; At least one water supply branch pipe is in communication with the water supply main pipe at one end and connected with a connecting cylinder at the other end. A water passing channel is formed in the connecting cylinder, and the connecting cylinder is buried below the road body; The connecting cylinder is connected to a water outlet pipe at one end away from the water supply pipe. The water outlet pipe is located within the greening divider belt, and a cut-off piece is installed inside the connecting cylinder. A linkage piece is installed on the water outlet pipe. When the position of the water outlet pipe changes, the linkage piece stops limiting the cut-off piece, causing the cut-off piece to move under the action of the water flow in the water flow channel until it blocks the water passage.

[0007] By adopting the above technical solution, when a vehicle unexpectedly collides with the water outlet pipe in the green belt, the water outlet pipe changes position after the collision, triggering the linkage mechanism. The linkage mechanism stops limiting the cut-off component, and the cut-off component, no longer limited, moves under the action of water flow until it blocks the water passage. This achieves rapid and automatic blocking of the water flow in the water supply pipe after a vehicle collision. The designed municipal road facilitates vehicle traffic through the road body, uses the green belt to divide the road surface according to function, and uses the main water supply pipe and water supply pipes to deliver irrigation water to the green plants in the green belt. The connecting tube facilitates the connection between the water supply pipe and the water outlet pipe and facilitates the installation of the cut-off component. The water outlet pipe, in conjunction with the linkage mechanism and water flow, automatically blocks the water passage, thereby reducing the possibility of water waste due to damage to the water outlet pipe in the green belt caused by vehicle collision and avoiding further safety hazards caused by excessive water spraying on the road surface.

[0008] In one specific implementation, the cut-off element includes a frustum-shaped float and a T-shaped guide post; The T-shaped guide post is connected to the inner wall of the connecting cylinder; The frustum-shaped float is coaxially arranged with the connecting cylinder, and the frustum-shaped float is slidably connected to the vertical section of the T-shaped guide column; The linkage extends into the connecting cylinder and abuts against the top wall of the frustum-shaped float.

[0009] By adopting the above technical solution, when the vehicle hits the water outlet pipe, it causes the linkage to move. The linkage no longer abuts against the top wall of the frustum-shaped float. Under the combined action of the water flow impact and its own buoyancy, the frustum-shaped float slides along the vertical section of the T-shaped guide column until it blocks the water passage. The designed cut-off component, through the T-shaped guide column, facilitates the movement of the frustum-shaped float, enabling it to accurately block the water passage. The frustum-shaped float can effectively seal the water passage.

[0010] In one specific implementation, the connecting cylinder includes a fixed section, a filtrate ring, and a deformable section; One end of the fixed section is connected to the water supply pipe, and the other end is coaxially connected to the filter ring; One end of the deformable section is connected to the side of the filtrate ring away from the fixed section, and the other end is connected to the fixed section. The fixed section, the deformable section, and the filtrate ring form a liquid-containing cavity. After the liquid enters the liquid-containing cavity from the filtrate ring, the deformable section expands outward toward the side of the T-shaped guide post.

[0011] By adopting the above technical solution, after the vehicle hits the water outlet pipe, before the frustum-shaped float blocks the water passage, some water flows out and moistens the surrounding soil. Then, under its own gravity, the water flows along the soil and enters the liquid chamber through the filter ring. The liquid causes the deformable section to overcome the impact of the water flow and expand outward toward the T-shaped guide column. At this time, the flow opening of the water passage narrows, and the frustum-shaped float can more quickly block the water passage. The designed connecting cylinder facilitates the installation of the filter ring and the deformable section through the fixed section, facilitates the filtration of the liquid entering the liquid chamber through the filter ring, and facilitates the identification of the liquid volume in the liquid chamber through the deformable section to adjust the size of the flow opening of the water passage, thereby achieving further rapid interception of water flow in the event of water loss.

[0012] In one specific implementation, the linkage includes a fixed rod and a glass rod; Both ends of the fixing rod are connected to the inner wall of the water outlet pipe; The glass rod passes through the fixed rod and has a sliding gap between it and the fixed rod, with one end of the glass rod abutting against the top wall of the frustum-shaped float.

[0013] By adopting the above technical solution, the water outlet pipe is displaced or even deformed after being impacted. At this time, the glass rod breaks, and the weight of the glass rod acting on the frustum-shaped float decreases. Under the combined action of the impact force of the water flow on the frustum-shaped float and the buoyancy of the frustum-shaped float itself, the frustum-shaped float slides along the vertical section of the T-shaped guide column until the water passage is blocked. The designed linkage can easily limit the position of the glass rod through the fixing rod, and the glass rod can easily overcome the impact force of the water flow to press down on the frustum-shaped float, so that the water passage is opened.

[0014] In one specific implementation scheme, the connecting cylinder includes a cylinder body and multiple water outlet blocks; Multiple water outlet blocks are evenly distributed around the circumference, and the water outlet blocks are connected to the inner circumference of the cylinder. A water outlet hole is opened on one side of the water outlet block, and the water outlet hole passes through the top wall of the cylinder and communicates with the inner cavity of the water outlet pipe.

[0015] By adopting the above technical solution, the designed connecting cylinder facilitates the installation of the water outlet block through the cylinder body, and facilitates the formation of lateral water outlet holes through the water outlet block.

[0016] In one specific implementation scheme, the cut-off element includes a T-shaped strip, a rotating tube, a ring edge, and multiple sealing blades; The T-shaped strip is connected to the cylinder; The rotating tube is coaxially arranged with the cylinder, and a rotation gap is left between the inner circumference of the rotating tube and the outer circumference of the vertical section of the T-shaped strip. The annular edge is connected to the rotating tube, and the annular edge can fit against the top wall of the inner cylinder. Multiple sealing blades are evenly distributed around the circumference of the rotating pipe. The sealing blades are connected to the rotating pipe and rotate under the action of water flow until they come into contact with the water outlet block and seal the water outlet.

[0017] By adopting the above technical solution, after the outlet pipe is impacted, the linkage no longer restricts the rotating pipe. The rotating pipe moves along the axial direction of the vertical section of the T-shaped strip towards the top wall of the cylinder until the ring edge is in contact with the top wall of the cylinder. At the same time, the paddle structure formed by the rotating pipe and multiple sealing blades rotates around the vertical section of the T-shaped strip under the action of water flow until the sealing blades are in contact with the outlet block and block the outlet hole, thus completing the blocking of the water passage. The designed cut-off component facilitates the positioning and guidance of the rotating pipe's rotation and sliding through the T-shaped strip, facilitates the installation of the ring edge and sealing blades through the rotating pipe, and facilitates the sealing of the water passage hole through the sealing blades.

[0018] In one specific implementation scheme, the linkage includes a glass strip and a limiting strip; The limiting strip is connected to the inner wall of the water outlet pipe; A clearance hole is provided on the top wall of the cylinder. The glass strip is connected to the limiting strip, and the glass strip passes through the clearance hole and is connected to the rotating tube.

[0019] By adopting the above technical solution, after the water outlet pipe is impacted, the glass strip breaks, and the glass strip no longer restricts the rotation of the rotating pipe. Furthermore, the weight of the glass strip acting on the rotating pipe is reduced, allowing the rotating pipe to move along the axial direction of the vertical section of the T-shaped strip towards the top wall of the cylinder until the ring edge fits against the inner top wall of the cylinder and seals the clearance hole. At the same time, the paddle structure formed by the rotating pipe and multiple sealing blades rotates around the vertical section of the T-shaped strip under the action of water flow until the sealing blades fit against the water outlet block and seal the water outlet hole, thus completing the blocking of the water passage. The designed linkage, through the limiting strip, facilitates the restriction of the glass strip's rotation, and through the glass strip, facilitates the restriction of the rotating pipe's rotation and applies gravity to the rotating pipe.

[0020] In one specific implementation, the glass strip is hollow.

[0021] By adopting the above technical solution, the hollow glass strip can improve the sensitivity of the water outlet pipe status while meeting its own functional requirements.

[0022] In one specific implementation, the glass strip has at least one recessed groove along its long side.

[0023] By adopting the above technical solution, the designed recessed groove can facilitate the rapid and sensitive breakage of the glass strip under external force, thereby improving the reliability of the cut-off part in blocking the water passage.

[0024] Secondly, this application provides a construction method for municipal roads, including the following construction steps: S1: Pre-installation of irrigation pipeline network: After the roadbed is compacted and leveled, the main water supply pipe is placed in the planned position, and then the water supply sub-pipes are installed on the main water supply pipe according to the irrigation needs and the soil backfilling is completed. S2: Pre-installation of connecting cylinder and cut-off piece: Install the cut-off piece inside the connecting cylinder, fix the connecting cylinder to the end of the water supply pipe away from the main water supply pipe, control the elevation of the connecting cylinder so that the connecting cylinder is lower than the road surface height of the road body, and temporarily cover the connecting cylinder with a partition. S3: Road construction; S4: Green dividing strip installation: On the well-maintained road body, carry out the construction of green dividing strip, and open the partition covering the connecting tube, and fix the water outlet pipe with the linkage to the connecting tube.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed municipal road facilitates vehicle traffic through the road body, and the green median strips facilitate the functional division of the road surface. The main water supply pipe and water supply branches facilitate the delivery of irrigation water to the green plants within the green median strips. The connecting pipes facilitate the connection between the water supply branches and the outlet pipes, and also facilitate the installation of cut-off components. The outlet pipes, in coordination with linkage components and water flow, facilitate the automatic blocking action of the water passage, thereby reducing the possibility of water waste due to damage to the outlet pipes of the green belt caused by vehicle collisions, and avoiding further safety hazards caused by excessive water spraying on the road surface.

[0026] 2. The designed municipal road uses T-shaped guide pillars to guide the movement of the frustum-shaped floats, enabling the frustum-shaped floats to accurately block the water passages and seal the water passages.

[0027] 3. The designed municipal road uses fixed sections to facilitate the installation of filter rings and deformable sections. The filter rings facilitate the filtration of liquid entering the liquid-containing chamber, while the deformable sections facilitate the identification of the liquid volume in the liquid-containing chamber to adjust the size of the water flow channel outlet, thereby enabling further rapid interception of water flow in the event of water resource loss. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a municipal road in Embodiment 1 of this application.

[0029] Figure 2 yes Figure 1 A partial structural diagram.

[0030] Figure 3 yes Figure 2 A sectional view.

[0031] Figure 4 This is a cross-sectional structural diagram of Embodiment 2 of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Road body; 2. Green divider; 3. Main water supply pipe; 4. Sub-pipe for water supply; 5. Connecting cylinder; 51. Fixed section; 52. Filter ring; 53. Deformable section; 54. Liquid-containing chamber; 55. Cylinder; 551. Clearance hole; 56. Water outlet block; 561. Water outlet hole; 6. Water outlet pipe; 7. Cut-off piece; 71. Frustum-shaped float; 72. T-shaped guide post; 73. T-shaped strip; 74. Rotating pipe; 75. Ring edge; 76. Sealing blade; 8. Linkage piece; 81. Fixed rod; 82. Glass rod; 83. Glass strip; 831. Recessed groove; 84. Limiting strip. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0034] This application discloses a municipal road and its construction method.

[0035] In one aspect, embodiments of this application disclose a municipal road.

[0036] Example 1 Reference Figure 1 , Figure 2 as well as Figure 3 A municipal road includes a road body 1, a green divider 2, a main water supply pipe 3, a secondary water supply pipe 4, an outlet pipe 6, and a connecting cylinder 5; the green divider 2 is set on the road body 1 and is set along the long side of the road body 1, dividing the road surface of the road body 1; the main water supply pipe 3 is buried under the road body 1 and is located below the green divider 2; the outlet pipe 6 is set in the green divider 2, and a sprinkler head is connected to the upper flange of the outlet pipe 6.

[0037] Reference Figure 2 and Figure 3One end of the water supply pipe 4 is connected to the main water supply pipe 3 via a flange, and the other end is connected to the connecting cylinder 5 via a flange. In this application, the number of water supply pipes 4 is at least one. In this embodiment, the number of water supply pipes 4 can be two, three, or four. In this embodiment, the number of water supply pipes 4 is three, and the number of water supply pipes 4, connecting cylinder 5, and outlet pipe 6 is the same.

[0038] Reference Figure 2 and Figure 3 The connecting cylinder 5 is embedded in the road body 1. The connecting cylinder 5 is equipped with a cut-off piece 7 and is set lower than the road surface of the road body 1. The connecting cylinder 5 includes a fixed section 51, a filter ring 52 and a deformable section 53. One end of the fixed section 51 is sealed to the flange of the water supply pipe 4 away from the water supply main pipe 3, and the other end is coaxially formed with the filter ring 52. One end of the deformable section 53 is sealed to the side of the filter ring 52 away from the fixed section 51, and the other end is sealed to the fixed section 51. The fixed end, the deformable section 53 and the filter ring 52 form a liquid-containing cavity 54 for containing liquid.

[0039] Reference Figure 2 and Figure 3 The filter ring 52 is sealed to one end of the outlet pipe 6 by a flange. The outlet pipe 6 is equipped with a linkage 8. The inner cavity of the water supply pipe 4, the inner cavity of the fixed section 51 and the deformable section 53 and the inner cavity of the outlet pipe 6 are connected to form a water passage. The liquid in the liquid chamber 54 applies pressure to the deformable section 53, causing the deformable section 53 to move toward the cut-off part 7, thereby reducing the water passage diameter of the water passage.

[0040] Reference Figure 3 The cut-off component 7 includes a frustum-shaped float 71 and a T-shaped guide post 72. The horizontal section of the T-shaped guide post 72 is welded to the inner circumference of the fixed section 51 at both ends, and the vertical section of the T-shaped guide post 72 is coaxially arranged with the fixed section 51. The frustum-shaped float 71 is coaxially arranged with the fixed section 51, and the frustum-shaped float 71 is slidably connected to the vertical section of the T-shaped guide post 72. After the frustum-shaped float 71 slides along the vertical section of the T-shaped guide post 72 toward the filtrate ring 52, it can fit into the deformable section 53. In this application, the density of the frustum-shaped float 71 is less than the density of water.

[0041] Reference Figure 4 The linkage 8 includes a fixed rod 81 and a glass rod 82. Both ends of the fixed rod 81 are welded to the inner wall of the water outlet pipe 6. The glass rod 82 passes through the fixed rod 81 and a sliding gap is left between the glass rod 82 and the fixed rod 81. The lower end of the glass rod 82 passes through the hole formed in the center of the filter ring 52 and abuts against the top wall of the frustum-shaped float 71. In order to facilitate the control of the sensitivity of the glass rod 82 to the movement or deformation of the water outlet pipe 6, the glass rod 82 is hollow and has multiple annular grooves along its own axial direction to facilitate the breakage of the glass rod 82.

[0042] The implementation principle of a municipal road in Embodiment 1 of this application is as follows: When a vehicle unexpectedly collides with the water outlet pipe 6 in the green median 2, the position of the water outlet pipe 6 changes after the collision, causing the traction glass rod 82 to break or shatter. The weight of the glass rod 82 acting on the frustum-shaped float 71 decreases. After the frustum-shaped float 71 loses its downward pressure limit, it moves along the vertical section of the T-shaped guide rod towards the filter ring 52 under the combined action of water flow and its own buoyancy until it blocks the water passage, thereby realizing the effect of water flow in the event of a vehicle collision. Therefore, the water supply pipe 4 is quickly and automatically blocked. After the vehicle hits the water outlet pipe 6, before the frustum-shaped float 71 blocks the water passage, some water flows out and wets the surrounding soil. Then, under its own gravity, the water flows along the soil and enters the liquid chamber 54 through the filter ring 52. The liquid causes the deformed section 53 to overcome the impact of the water flow and expand outward toward the T-shaped guide column 72. At this time, the flow opening of the water passage is reduced, and the frustum-shaped float 71 can more quickly block the water passage.

[0043] Example 2 Reference Figure 4 The difference between Embodiment 2 and Embodiment 1 is that the connecting cylinder 5 includes a cylinder body 55 and multiple water outlet blocks 56. The upper end of the cylinder body 55 is sealed to the water outlet pipe 6 by a flange, and a clearance hole 551 is coaxially opened on the top wall of the cylinder body 55. The lower end of the cylinder body 55 is sealed to the water supply pipe 4 by a flange. The multiple water outlet blocks 56 are evenly distributed around the circumference, and the water outlet blocks 56 are welded to the inner circumference of the cylinder body 55. The bottom wall of the water outlet blocks 56 is horizontally set, and a water outlet hole 561 is opened on one side of the water outlet block 56. The water outlet hole 561 communicates with the inner cavity of the cylinder body 55 and the inner cavity of the water outlet pipe 6. In this application, the number of water outlet blocks 56 can be two, three, or four. In this embodiment, the number of water outlet blocks 56 is three.

[0044] Reference Figure 4 The cut-off component 7 includes a T-shaped strip 73, a rotating tube 74, an annular edge 75, and multiple sealing blades 76. The horizontal sections of the T-shaped strip 73 are welded to the inner circumference of the cylinder 55 at both ends, and the vertical section of the T-shaped strip 73 is coaxially arranged with the cylinder 55. The rotating tube 74 is coaxially arranged with the cylinder 55, and a rotation gap is left between the inner circumference of the rotating tube 74 and the outer circumference of the vertical section of the T-shaped strip 73. The annular edge 75 is fixedly connected to the rotating tube 74, and the outer diameter of the annular edge 75 is larger than the diameter of the relief hole 551. The annular edge 75 can fit against the inner top wall of the cylinder 55 to seal the relief hole 551. When the annular edge 75 fits against the cylinder 55, the vertical section of the T-shaped strip 73 still extends into the rotating tube 74.

[0045] Reference Figure 4Multiple sealing blades 76 are evenly distributed around the circumference of the rotating tube 74, and the sealing blades 76 are fixed to the rotating tube 74. The number of sealing blades 76 is the same as the number of water outlet blocks 56. Under the action of water flow, the sealing blades 76 rotate around the rotating tube 74 as an axis until the sealing blades 76 and the water outlet blocks 56 are attached to each other and block the water outlet 561.

[0046] Reference ​ The linkage 8 includes a glass strip 83 and a limiting strip 84. The limiting strip 84 is welded to the inner wall of the water outlet pipe 6. The glass strip 83 passes through the limiting strip 84 and is clamped to the limiting strip 84. The glass strip 83 passes through the clearance hole 551 and is inserted into the rotating tube 74. The glass strip 83 is clamped and fixed to the rotating tube 74. In order to improve the sensitivity of the glass strip 83, the glass strip 83 is hollow and has at least one recessed groove 831 along its long side. In this application, the number of recessed grooves 831 on the glass strip 83 can be one, two, or three. In this embodiment, the number of recessed grooves 831 is three.

[0047] The implementation principle of a municipal road in Embodiment 2 of this application is as follows: After the water outlet pipe 6 is impacted, the glass strip 83 breaks, the glass strip 83 no longer restricts the rotation of the rotating pipe 74, and the weight of the glass strip 83 acting on the rotating pipe 74 is reduced, so that the rotating pipe 74 can move along the axial direction of the vertical section of the T-shaped strip 73 toward the top wall of the cylinder 55 until the ring edge 75 and the inner top wall of the cylinder 55 are attached and block the clearance hole 551. At the same time, the paddle structure formed by the rotating pipe 74 and multiple blocking blades 76 rotates around the vertical section of the T-shaped strip 73 under the action of water flow until the blocking blades 76 and the water outlet block 56 are attached and block the water outlet hole 561, thus completing the blocking of the water passage.

[0048] Secondly, this application discloses a construction method for municipal roads, including the following construction steps: S1: Pre-installation of irrigation pipeline network: After the roadbed is compacted and leveled, the main water supply pipe 3 is placed in the planned position, and then the water supply branch pipe 4 is installed on the main water supply pipe 3 according to the irrigation needs and the soil backfilling is completed. S2: Pre-installation of connecting cylinder 5 and cut-off piece 7: Install the cut-off piece 7 inside the connecting cylinder 5, fix the connecting cylinder 5 to the end of the water supply pipe 4 away from the main water supply pipe 3, and control the elevation of the connecting cylinder 5 so that the connecting cylinder 5 is lower than the road surface height of the road body 1, and use a partition to temporarily cover the connecting cylinder 5. S3: Construction of the road body 1; S4: Green dividing strip 2 installation: On the well-maintained road body 1, the green dividing strip 2 is installed, and the partition covering the connecting cylinder 5 is opened, and the water outlet pipe 6 with the linkage 8 is fixed to the connecting cylinder 5.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A municipal road, characterized in that: include The road body (1) has a green dividing strip (2) along its long side; Water supply main pipe (3), which is buried under the road body (1); At least one water supply pipe (4) is provided, one end of which is connected to the main water supply pipe (3), and the other end is connected to a connecting cylinder (5). A water passage is formed inside the connecting cylinder (5), and the connecting cylinder (5) is buried in the road body (1). The connecting cylinder (5) is connected to a water outlet pipe (6) at the end away from the water supply pipe (4). The water outlet pipe (6) is located in the greening divider (2). A cut-off piece (7) is provided inside the connecting cylinder (5). A linkage piece (8) is provided on the water outlet pipe (6). When the position of the water outlet pipe (6) changes, the linkage piece (8) stops limiting the cut-off piece (7), causing the cut-off piece (7) to move under the action of the water flow in the water flow channel until it blocks the water passage.

2. The municipal road according to claim 1, characterized in that: The cut-off component (7) includes a frustum-shaped float (71) and a T-shaped guide post (72); The T-shaped guide post (72) is connected to the inner wall of the connecting cylinder (5); The frustum-shaped float (71) is coaxially arranged with the connecting cylinder (5), and the frustum-shaped float (71) is slidably connected to the vertical section of the T-shaped guide column (72); The linkage (8) extends into the connecting cylinder (5) and abuts against the top wall of the frustum-shaped float (71).

3. The municipal road according to claim 2, characterized in that: The connecting cylinder (5) includes a fixed section (51), a filtrate ring (52), and a deformable section (53); One end of the fixed section (51) is connected to the water supply pipe (4), and the other end is coaxially connected to the filter ring (52); One end of the deformable section (53) is connected to the side of the filtrate ring (52) away from the fixed section (51), and the other end is connected to the fixed section (51). The fixed section (51), the deformable section (53), and the filtrate ring (52) form a liquid-containing cavity (54). After the liquid enters the liquid-containing cavity (54) from the filtrate ring (52), the deformable section (53) expands outward toward the side of the T-shaped guide post (72).

4. The municipal road according to any one of claims 2-3, characterized in that: The linkage (8) includes a fixed rod (81) and a glass rod (82); Both ends of the fixing rod (81) are connected to the inner wall of the water outlet pipe (6); The glass rod (82) passes through and has a sliding gap with the fixed rod (81), and one end of the glass rod (82) abuts against the top wall of the frustum-shaped float (71).

5. The municipal road according to claim 1, characterized in that: The connecting cylinder (5) includes a cylinder body (55) and multiple water outlet blocks (56); Multiple water outlet blocks (56) are evenly distributed around the circumference, and the water outlet blocks (56) are connected to the inner circumference of the cylinder (55). A water outlet hole (561) is opened on one side of the water outlet block (56), and the water outlet hole (561) passes through the top wall of the cylinder (55) and communicates with the inner cavity of the water outlet pipe (6).

6. The municipal road according to claim 5, characterized in that: The cut-off component (7) includes a T-shaped strip (73), a rotating tube (74), a ring edge (75), and multiple sealing blades (76); The T-shaped strip (73) is connected to the cylinder (55); The rotating tube (74) is coaxially arranged with the cylinder (55), and a rotation gap is left between the inner circumference of the rotating tube (74) and the outer circumference of the vertical section of the T-shaped strip (73); The annular edge (75) is connected to the rotating tube (74), and the annular edge (75) can fit against the inner top wall of the cylinder (55); Multiple sealing blades (76) are evenly distributed around the circumference of the rotating tube (74). The sealing blades (76) are connected to the rotating tube (74), and the sealing blades (76) rotate under the action of water flow until they adhere to the water outlet block (56) and seal the water outlet hole (561).

7. The municipal road according to claim 6, characterized in that: The linkage component (8) includes a glass strip (83) and a limiting strip (84); The limiting strip (84) is connected to the inner wall of the water outlet pipe (6); The top wall of the cylinder (55) is provided with a clearance hole (551), the glass strip (83) is connected to the limiting strip (84), and the glass strip (83) passes through the clearance hole (551) and is connected to the rotating tube (74).

8. The municipal road according to claim 7, characterized in that: The glass strip (83) is hollow.

9. The municipal road according to claim 7, characterized in that: At least one recessed groove (831) is provided on the glass strip (83) along its long side.

10. A construction method for municipal roads, characterized in that: The construction steps include the following: S1: Pre-installation of irrigation pipeline: After the roadbed is compacted and leveled, the main water supply pipe (3) is placed in the planned position, and then the water supply branch pipe (4) is installed on the main water supply pipe (3) according to the irrigation requirements and the soil backfilling is completed. S2: Pre-installation of connecting cylinder (5) and cut-off piece (7): Install the cut-off piece (7) inside the connecting cylinder (5), and fix the connecting cylinder (5) to the end of the water supply pipe (4) away from the main water supply pipe (3), and control the elevation of the connecting cylinder (5) so that the connecting cylinder (5) is lower than the road surface height of the road body (1), and use partitions to temporarily cover the connecting cylinder (5); S3: Construction of the road body (1); S4: Green dividing strip (2) laying: On the well-maintained road body (1), the green dividing strip (2) is constructed, and the partition covering the connecting cylinder (5) is opened, and the water outlet pipe (6) with the linkage (8) is fixed on the connecting cylinder (5).

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