Sponge City Community Comprehensive Plot Ecological Greening System

Abstract

This application relates to an ecological greening system for a comprehensive plot in a sponge city community, belonging to the technical field of sponge city. It includes a road, curbs set on both sides of the road, and drainage channels set between the road and the curbs. A number of channel covers are provided on the drainage channels, and a number of water leakage holes are opened on the channel covers. A reservoir located underground is provided on the side of the curb facing away from the road. A through groove connecting the drainage channel and the reservoir is opened at the lower end of the curb. The upper end of the channel cover is set on the curb, and the lower end of the channel cover is set on the drainage channel. The channel cover is bent in the direction away from the road. By bending the channel cover in this application, sundries can only accumulate at the lower end of the channel cover, and rainwater can still overflow the sundries and flow into the drainage channel through the water leakage holes above the channel cover, reducing the accumulation of rainwater on the road surface, thus having the advantage of enhancing the drainage effect on the road surface.

Description

Technical Field

[0001] The present application relates to the field of sponge city technology, and in particular to an ecological greening system for integrated plots of land in sponge city communities. Background Art

[0002] At present, sponge city is a new generation of urban stormwater management concept, which means that the city has good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called "water elastic city". It absorbs water, stores water, infiltrates water, and purifies water when it rains, and "releases" and utilizes the stored water when needed. Sponge city can solve the current problems of urban waterlogging, rainwater runoff pollution, water shortage, etc., and it is also conducive to repairing the urban water ecological environment and bringing comprehensive ecological and environmental benefits.

[0003] Related technologies such as a sponge city ecological municipal road disclosed in publication number CN111809475A include: a municipal road, and green belts arranged on both sides of the municipal road, wherein the green belt includes: a green base; and curbstones arranged around the top of the green base, drainage channels are provided on both sides of the municipal road near the curbstones, a water storage cavity is provided inside the green base, a drainage trough is provided through the curbstone with one end connected to the drainage channel and the other end connected to the green belt, a connecting trough connected to the water storage cavity is provided on the side wall of the drainage channel near the water storage cavity, the connecting trough is inclined downward from the water storage cavity to the drainage channel, a plurality of rows of water guide troughs are provided on the top of the water storage cavity through the green base, a spray component is provided in the water storage cavity, and an anti-backflow component is provided in the water storage cavity.

[0004] Regarding the above-mentioned related technologies, the inventors found that when there are a lot of debris mixed in rainwater, it is easy to cover the channel cover on the drainage channel, causing rainwater to accumulate on the road surface, resulting in poor drainage effect on the road surface. Summary of the invention

[0005] In order to enhance the drainage effect on the road surface, the purpose of this application is to provide a sponge city community comprehensive land ecological greening system.

[0006] The sponge city community comprehensive plot ecological greening system provided in this application adopts the following technical solutions:

[0007] The sponge city community comprehensive ecological greening system includes a road, curbs arranged on both sides of the road, and a drainage channel arranged between the road and the curb, wherein a plurality of channel covers are arranged on the drainage channel, a plurality of drainage holes are opened on the channel cover, an underground water storage tank is arranged on the side of the curb facing away from the road, a through groove connecting the drainage channel and the water storage tank is opened at the lower end of the curb, the upper end of the channel cover is arranged on the curb, the lower end of the channel cover is arranged on the drainage channel, and the channel cover is arranged in a curved direction away from the road.

[0008] By adopting the above technical solution, when there is a lot of debris mixed in the rainwater, the rainwater mixed with debris flows towards the curbs on both sides of the road, causing the rainwater mixed with debris to flow into the drainage channel. The rainwater flows into the drainage channel through the water leakage holes on the channel cover, and the debris is blocked on the channel cover. Since the channel cover is bent, when the debris accumulates on the channel cover along with the rainwater, it can only accumulate under the channel cover, and the rainwater can still flow into the drainage channel through the water leakage holes above the bent part of the channel cover after flowing over the debris. Therefore, by bending the channel cover, the debris can only accumulate at the lower end of the channel cover, and the rainwater can still flow over the debris and into the drainage channel through the water leakage holes above the channel cover, reducing the accumulation of rainwater on the road surface and thus enhancing the drainage effect on the road surface.

[0009] Optionally, a plurality of sliding plates slide inside the curb, a plurality of ejector rods penetrating through the curb are arranged on the sliding plates, one end of the ejector rod penetrating out of the curb slides in the water leakage hole, and a driving member for driving the sliding plate to drive the ejector rod to slide in the water leakage hole is arranged inside the curb.

[0010] By adopting the above technical solution, when there is a lot of debris accumulated on the channel cover, the driving member is started, and the driving member drives the sliding plate to slide, so that the sliding plate drives the ejector rod to slide from inside the curb into the water leakage hole. After the ejector rod slides out of the water leakage hole, it pushes against the debris to separate it from the channel cover, so as to open the water leakage hole on the channel cover, facilitating the rainwater to enter the drainage channel through the water leakage hole on the channel cover, thereby further improving the anti-blocking effect of the drainage channel.

[0011] Optionally, the driving member includes a plurality of floating cylinders sliding vertically inside the curb and a floating rod connected above the floating cylinders. The sliding plate is inclined inside the curb. The floating cylinders are located in the through groove and are driven by buoyancy to slide the floating rod upward. The upper end of the floating rod is used to push against the inclined side wall of the sliding plate to drive the ejector rod to slide out of the water leakage hole.

[0012] By adopting the above technical solution, when driving the sliding plate to drive the ejector rod to eject from the water leakage hole, the rainwater first flows into the drainage channel through the channel cover, and then the rainwater entering the drainage channel enters the through groove to exert buoyancy on the floating cylinders and the floating rod. The buoyancy drives the floating cylinders and the floating rod to slide upward. The upward-sliding floating rod pushes against the inclined side wall of the sliding plate to push the sliding plate to slide outwards from the curb, thereby driving the ejector rod to slide out of the water leakage hole to push open the accumulated debris. At the same time, as the water flows from the through groove into the storage pool, the flow of the rainwater causes the floating cylinders and the floating rod to continuously float up and down. Furthermore, the sliding plate is intermittently pushed, causing the ejector rod to continuously slide back and forth in the water leakage hole to intermittently push the debris accumulated on the channel cover. Therefore, by arranging the floating cylinders and the floating rod, the buoyancy of the rainwater entering the through groove is used to drive the floating cylinders and the floating rod to continuously slide up and down, so that the floating rod pushes against the sliding plate to drive the ejector rod to slide in and out of the water leakage hole, thereby facilitating the ejector rod to loosen the debris accumulated on the channel cover.

[0013] Optionally, a chute for the floating rod and the floating cylinder to slide is provided in the curb. A spring is provided at the upper end of the floating rod, and the end of the spring away from the floating rod is arranged on the top wall of the chute. The spring is used to pull the floating rod to drive the floating cylinder to move upward and then push the floating rod against the sliding plate. When the floating cylinder and the floating rod are not affected by buoyancy, the floating rod stretches the spring to position the floating cylinder in the through groove. An avoidance groove for the spring to expand and contract is provided on the sliding plate.

[0014] By adopting the above technical solution, when rainwater enters the through groove and exerts buoyancy on the floating cylinder and the floating rod, the buoyancy of the water acts on the floating cylinder, driving the floating rod to slide upward. At the same time, the spring pulls the floating rod to slide upward, increasing the sliding force of the floating rod. So that after the floating rod slides upward, it pushes the sliding plate to slide, causing the sliding plate to drive the ejector rod to slide out of the water leakage hole and push the accumulated debris. After the water flow in the through groove stops flowing into the storage pool, the floating cylinder and the floating rod slide downward, causing the floating cylinder to be located in the through groove to block the through groove. At this time, the spring is in a stretched state. Therefore, by setting the spring, after the floating cylinder and the floating rod are buoyed upward, they are also subjected to the pulling force of the spring to increase the sliding force of the floating rod, thereby increasing the sliding force of the sliding plate driving the ejector rod out of the water leakage hole, and thus increasing the pushing force of the ejector rod against the debris.

[0015] Optionally, the ejector rod slides obliquely upward along with the sliding plate. After the ejector rod and the sliding plate are separated from the pushing of the floating rod, they can slide into the chute under the action of gravity. The sliding plate abuts against the chute wall and is located above the floating rod.

[0016] By adopting the above technical solution, when the floating rod slides upward and pushes the sliding plate, the spring contracts in the avoidance groove. After being pushed, the sliding plate drives the ejector rod to slide obliquely upward, so that the ejector rod slides obliquely upward out of the water leakage hole. Then the debris on the channel cover is pushed obliquely upward to expose the water leakage hole, facilitating the rainwater to flow into the drainage channel through the water leakage hole. Until the rainwater stops entering the storage pool from the through groove, the floating cylinder and the floating rod slide downward, disengaging from the pushing of the sliding plate. The sliding plate drives the ejector rod to slide obliquely under the action of gravity, causing the ejector rod to slide into the water leakage hole and the sliding plate to slide into the chute, and making the sliding plate located directly above the floating rod, thus facilitating the floating rod to slide upward again to push the sliding plate.

[0017] Optionally, a sliding rod that slides in the avoidance groove is fixedly connected to the upper end of the floating rod. The spring is sleeved on the sliding rod, and the upper end of the sliding rod slides through the top wall of the curb.

[0018] By adopting the above technical solution, when the floating rod slides upward and the spring pulls the floating rod to slide upward, the spring expands and contracts in the avoidance groove on the floating plate, drives the sliding rod on the floating rod to slide upward, and makes the sliding rod slide out of the top wall of the curb. The height at which the sliding rod slides out of the curb can be used to judge the height at which the floating cylinder and the floating rod slide upward, and further know the magnitude of the rainwater flow in the through groove.

[0019] Optionally, the lower end of the channel cover is hinged to the drainage channel, and a rotating column is provided at the upper end of the channel cover.

[0020] By adopting the above technical solution, when there is no rain on the road surface and the drain cover is full of sundries, the hand-held rotating column drives the drain cover to rotate away from the roadside, so that the drain cover opens the drainage channel, and at the same time, the sundries accumulated on the drain cover are dumped on the road surface for cleaning, thus facilitating the cleaning of the sundries accumulated on the drain cover.

[0021] Optionally, a locking plate is rotatably connected to the rotating column. The rotation axis of the locking plate extends in the vertical direction. A clamping groove is formed at one end of the sliding rod that slides out of the top wall of the roadside. A receiving groove for the sliding rod to turn into is formed on the locking plate. The top wall of the clamping groove abuts against the top wall of the locking plate and restricts the downward movement of the sliding rod, thereby restricting the downward movement of the floating cylinder and locating it in the through groove.

[0022] By adopting the above technical solution, when the rainfall is large, the floating cylinder and the floating rod slide upward, driving the sliding rod to slide out of the road. Then rotate the locking plate so that the sliding rod turns into the receiving groove of the locking plate, and the top wall of the clamping groove on the sliding rod abuts against the top wall of the locking plate to restrict the downward movement of the floating cylinder and block the through groove. Furthermore, the through groove is in an always-open state, so that the rainwater on the road can quickly flow into the water storage tank through the drainage channel, achieving the effect of rapid drainage.

[0023] Optionally, when the locking plate is located on the roadside and blocks the sliding rod in the roadside, the floating cylinder slides downward and is located in the through groove to block the through groove.

[0024] By adopting the above technical solution, when it is sunny, rotate the locking plate on the rotating column and slide the sliding rod into the roadside, so that the sliding rod drives the floating rod and the floating cylinder to move downward. Until the floating cylinder slides into the through groove to block the through groove, and then block the water inlet end of the water storage tank to reduce the evaporation of the water in the water storage tank in hot weather, thus facilitating the storage of rainwater in the water storage tank.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By bending the drain cover, the sundries can only accumulate at the lower end of the drain cover, and the rainwater can still overflow the sundries and flow into the drainage channel through the leakage holes above the drain cover, reducing the accumulation of rainwater on the road surface, thereby enhancing the drainage effect on the road surface;

[0027] 2. By arranging the floating cylinder and the floating rod, the buoyancy of the rainwater entering the through groove is used to drive the floating cylinder and the floating rod to continuously slide up and down, so that the floating rod pushes against the sliding plate and drives the ejector rod to slide in and out of the leakage hole, thus facilitating the ejector rod to loosen the sundries accumulated on the drain cover;

[0028] 3. By setting the spring, after the buoy and the buoy rod slide upward under the buoyancy force, they are also subjected to the pulling force of the spring, so as to increase the sliding force of the buoy rod upward, and further increase the sliding force of the slide plate driving the ejector rod to slide out from the water leakage hole, thereby increasing the force of the ejector rod to push the sundries.

[0029] 4. By setting the locking plate, through the clamping and abutting with the slide rod, it is convenient to lock the buoy in two states of sliding out of the through groove and sliding into the through groove, so as to facilitate maintaining the normal open and normal closed states of the through groove. Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0031] Figure 2 is the cross-sectional schematic diagram of the driving member used in the embodiment of the present application.

[0032] Figure 3 is the structural schematic diagram of the clamping groove used in the embodiment of the present application.

[0033] Description of the reference numerals: 1, road; 2, drainage channel; 21, channel cover; 22, water leakage hole; 23, rotating column; 24, locking plate; 241, receiving groove; 3, curb; 31, through groove; 32, sliding groove; 321, sliding cavity; 322, sliding cavity; 33, slide plate; 331, avoidance groove; 34, ejector rod; 35, through hole; 4, green belt; 41, water storage pool; 5, driving member; 51, buoy; 52, buoy rod; 53, slide rod; 531, clamping groove; 54, spring. Detailed Description of the Embodiment

[0034] The following is a further detailed description of the present application in conjunction with the attached Figures 1-3 drawings.

[0035] The embodiment of the present application discloses a comprehensive ecological greening system for a sponge city community plot.

[0036] Referring to Figure 1 , the ecological greening system includes a road 1, drainage channels 2 located on both sides of the road 1, curbs 3 located on the side of the drainage channels 2 facing away from the road 1, and green belts 4 located on the side of the curbs 3 facing away from the drainage channels 2. A water storage pool 41 is buried below the green belt 4.

[0037] Referring to Figure 1 and Figure 2 , a through groove 31 communicating the drainage channel 2 and the water storage pool 41 is opened in the curb 3, so as to facilitate the rainwater on the road surface to flow into the through groove 31 after being drained through the drainage channel 2, so as to introduce the rainwater into the water storage pool 41, so as to reuse the water in the water storage pool 41 after being purified by the purification measures of the urban rainwater collection system, as a low-quality urban water source, and relieve the urban water pressure from the side.

[0038] Referring toFigure 2 On one side of the drainage channel 2 close to the road 1, a number of channel covers 21 are hinged. The channel covers 21 cover the drainage channel 2. The lower end of the channel cover 21 is hinged to the drainage channel 2, and the upper end abuts against the curb 3. The hinge axis of the channel cover 21 extends along the length direction of the road 1, and the upper end of the channel cover 21 is flush with the top wall of the curb 3.

[0039] Refer to Figure 2 The bottom wall of the drainage channel 2 is inclined and curved, that is, the bottom wall of the drainage channel 2 is curved away from the curb 3, so that rainwater can quickly flow from the bottom wall of the drainage channel 2 into the through groove 31. The channel cover 21 is curved towards the drainage channel 2 and the curb 3, that is, a number of long strip-shaped water leakage holes 22 are formed in the channel cover 21, so as to block the sundries in the rainwater outside the channel cover 21 and filter the rainwater, so that the filtered rainwater passes through the channel cover 21 into the drainage channel 2 and flows into the water storage tank 41 from the through groove 31.

[0040] Refer to Figure 2 A number of sliding plates 33 are slidably connected in the curb 3, and each sliding plate 33 is inclined in the curb 3. A sliding groove 32 for the sliding plate 33 to slide is formed in the curb 3, and the sliding plate 33 is curved in the inclined downward direction. A number of ejector rods 34 are fixedly connected to the side wall of each sliding plate 33 inclined upward, and the ejector rods 34 slide inclined upward.

[0041] Refer to Figure 2 The ejector rods 34 are sequentially shortened in the vertical upward length along the sliding plate 33 to adapt to the curved channel cover 21, so that after the sliding plate 33 slides into the sliding groove 32, the ejector rods 34 slide into the water leakage holes 22. Only when the sliding plate 33 is pushed, the ejector rods 34 will protrude from the water leakage holes 22.

[0042] Refer to Figure 2 The ejector rods 34 slide through the side wall of the curb 3 facing the road 1. A through hole 35 for the ejector rods 34 to protrude is formed in the side wall of the curb 3. One end of the ejector rod 34 passing through the through hole 35 slides in the water leakage hole 22, and the ejector rod 34 can slide and swing in the through hole 35 and the water leakage hole 22.

[0043] Refer to Figure 2 A driving member 5 for driving the sliding plate 33 to slide and driving the ejector rod 34 to slide out of the water leakage hole 22 is installed in the curb 3, so that the ejector rod 34 can push the sundries accumulated on the channel cover 21 to expose the water leakage hole 22, facilitating the rainwater on the road 1 to flow into the drainage channel 2 through the water leakage hole 22.

[0044] Refer to Figure 2, the driving member 5 includes a number of pontoons 51 that slide vertically within the curb 3, and a floating rod 52 connected to the pontoons 51. The pontoons 51 slide within the through groove 31. The chute 32 includes a sliding cavity 321 for the sliding plate 33 to slide, and a sliding cavity 322 for the pontoons 51 and the floating rod 52 to slide up and down. The sliding plate 33 can swing within the sliding cavity 321. After the floating rod 52 penetrates through the curb 3, it can slide into the sliding cavity 321 and abut against the bottom wall of the sliding plate 33. By the buoyancy of the pontoons 51 within the through groove 31, the floating rod 52 is driven to slide up and abut against the sliding plate 33, driving the sliding plate 33 to swing within the sliding cavity 321, and then driving the ejector rod 34 to swing out from the water leakage hole 22, that is, causing the ejector rod 34 to swing upward to push open the sundries accumulated on the channel cover 21 and open the water leakage hole 22.

[0045] Referring to Figure 2 , when the pontoons 51 slide down to block the through groove 31, the floating rod 52 is driven to slide down, causing the floating rod 52 to disengage from the abutment with the sliding plate 33. Due to the inclination of the sliding plate 33 and the ejector rod 34, the sliding plate 33 is driven by gravity to drive the ejector rod 34 to slide into the sliding cavity 321 until the sliding plate 33 abuts against the cavity wall of the sliding cavity 321 and is located above the floating rod 52.

[0046] Referring to Figure 2 , a sliding rod 53 is fixedly connected to the upper end of the floating rod 52. After the sliding rod 53 extends into the sliding cavity 321, it slides vertically. The upper end of the sliding rod 53 slides through the top wall of the curb 3. A spring 54 is sleeved on the sliding rod 53. The upper end of the spring 54 is fixedly connected to the top wall of the sliding cavity 321, and the lower end of the spring 54 is fixedly connected to the top wall of the floating rod 52. The pulling force of the spring 54 acts on the floating rod 52, so that the floating rod 52 is subjected to the upward pulling force of the spring 54 while being subjected to the buoyancy of the pontoons 51, to increase the force for the floating rod 52 to push the sliding plate 33 to slide. At the same time, when the pontoons 51 and the floating rod 52 hang down naturally under gravity, the pontoons 51 are located within the through groove 31 to block the through groove 31. When the pontoons 51 are driven by buoyancy to drive the floating rod 52 to slide up to the highest point, the spring 54 is in a state of neither elongation nor compression.

[0047] Referring to Figure 2 , an avoidance groove 331 for only the sliding rod 53 and the spring 54 to slide is formed on the sliding plate 33. Since the pontoons 51 push the sliding plate 33 to rotate, that is, the sliding rod 53 and the spring 54 also rotate relative to the sliding plate 33 within the avoidance groove 331, so that the floating rod 52 can push the sliding plate 33 to rotate while being subjected to the pulling force of the spring 54.

[0048] Referring to Figure 3 , a rotating column 23 is fixedly connected to the upper end of the channel cover 21. A locking plate 24 is rotatably connected to the rotating column 23. The rotation axis of the locking plate 24 extends in the vertical direction. A clamping groove 531 is formed at one end of the sliding rod 53 that penetrates through the top wall of the curb 3. An accommodation groove 241 for the sliding rod 53 to turn into is formed on the locking plate 24.

[0049] Reference Figure 2 and Figure 3 Figure 3 When the buoy 51 drives the buoy rod 52 and the sliding rod 53 to slide to the highest position, the clamping groove 531 of the sliding rod 53 corresponds to the receiving groove 241 of the locking plate 24, so as to facilitate the rotation of the locking plate 24. After the sliding rod 53 is located in the receiving groove 241, the top wall of the clamping groove 531 abuts against the top wall of the locking plate 24 to limit the downward sliding of the sliding rod 53. At this time, the buoy 51 opens the through groove 31 to the maximum to facilitate keeping the through groove 31 always open. When the buoy 51 slides into the through groove 31 to block the through groove 31, the buoy 51 drives the buoy rod 52 and the sliding rod 53 to slide downward, and slides the sliding rod 53 completely into the sliding cavity 321. Then, the locking plate 24 is rotated above the sliding rod 53 to block the sliding rod 53 in the curb 3 and limit the upward sliding of the sliding rod 53, thereby restricting the upward sliding of the buoy 51 to open the through groove 31 and keeping the through groove 31 always closed.

[0050]

[0050] The implementation principle of the sponge city community integrated plot ecological greening system in the embodiment of the present application is as follows: When there is a lot of rainwater mixed with sundries on the road 1, the rainwater mixed with sundries flows to the drainage channels 2 on both sides of the road 1. The sundries are blocked by the channel cover 21, so that the sundries accumulate outside the channel cover 21. The rainwater enters the drainage channel 2 through the water leakage holes 22 and enters the water outlet pool through the through groove 31 for storage. After the rainwater enters the through groove 31, it applies buoyancy to the buoy 51, so that the buoy 51 drives the buoy rod 52 to slide upward after receiving the buoyancy. Furthermore, when the buoy rod 52 slides upward under the buoyancy of the buoy 51, it is also pulled upward by the spring 54. So that the buoy 51 pushes the sliding plate 33 to rotate outward toward the curb 3 in the sliding cavity 321 and form a swing, and then drives the ejector rod 34 to slide in the through hole 35 and the water leakage holes 22, so that the ejector rod 34 slides out of the water leakage holes 22 and swings upward. To push open the sundries accumulated on the channel cover 21 and expose the water leakage holes 22, facilitating the water accumulated on the road surface to flow into the drainage channel 2 through the water leakage, reducing the accumulation of rainwater on the road surface, and thus enhancing the drainage effect on the road surface.

[0051] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. The ecological greening system of the comprehensive plot of a sponge city community is characterized in that: It includes a road (1), curb stones (3) arranged on both sides of the road (1), and drainage channels (2) arranged between the road (1) and the curb stones (3). A number of channel covers (21) are provided on the drainage channels (2), and a number of water leakage holes (22) are opened on the channel covers (21). On the side of the curb stone (3) facing away from the road (1), there is an underground water storage tank (41). A through groove (31) communicating the drainage channel (2) and the water storage tank (41) is opened at the lower end of the curb stone (3). The upper end of the channel cover (21) is arranged on the curb stone (3), and the lower end of the channel cover (21) is arranged on the drainage channel (2). The channel cover (21) is bent in a direction away from the road (1). A number of sliding plates (33) slide in the curb stone (3). A number of ejector rods (34) penetrating the curb stone (3) are provided on the sliding plates (33). One end of the ejector rod (34) penetrating out of the curb stone (3) slides in the water leakage hole (22). A driving member (5) for driving the sliding plate (33) to drive the ejector rod (34) to slide in the water leakage hole (22) is arranged in the curb stone (3). The driving member (5) includes a number of floating cylinders (51) sliding vertically in the curb stone (3) and a floating rod (52) connected above the floating cylinder (51). The sliding plate (33) is inclined in the curb stone (3). The floating cylinder (51) is located in the through groove (31) and is driven by buoyancy to slide the floating rod (52) upward. The upper end of the floating rod (52) is used to push against the inclined side wall of the sliding plate (33) to drive the ejector rod (34) to slide out of the water leakage hole (22). A sliding groove (32) for the floating rod (52) and the floating cylinder (51) to slide is opened in the curb stone (3). A spring (54) is provided at the upper end of the floating rod (52). The end of the spring (54) away from the floating rod (52) is arranged on the top wall of the sliding groove (32). The spring (54) is used to pull the floating rod (52) to drive the floating cylinder (51) to move upward and then push against the floating rod (52) against the sliding plate (33). When the floating cylinder (51) and the floating rod (52) are not affected by buoyancy, the floating rod (52) stretches the spring (54) and the floating cylinder (51) is located in the through groove (31) to block the through groove (31). An avoidance groove (331) for the spring (54) to expand and contract is opened on the sliding plate (33). The ejector rod (34) slides obliquely upward along with the sliding plate (33). After the ejector rod (34) and the sliding plate (33) are separated from the pushing of the floating rod (52), it can slide into the sliding groove (32) under the action of gravity. The sliding plate (33) abuts against the wall of the sliding groove (32) and is located above the floating rod (52).

2. The ecological greening system for the comprehensive plot of a sponge city community according to claim 1, characterized in that: The upper end of the floating rod (52) is fixedly connected to a sliding rod (53) sliding in the avoidance groove (331). The spring (54) is sleeved on the sliding rod (53). The upper end of the sliding rod (53) slides through the top wall of the curb stone (3).

3. The ecological greening system for the comprehensive plot of a sponge city community according to claim 2, characterized in that: The lower end of the channel cover (21) is hinged to the drainage channel (2), and a rotating column (23) is provided at the upper end of the channel cover (21).

4. The ecological greening system for the comprehensive plot of a sponge city community according to claim 3, characterized in that: A locking plate (24) is rotatably connected to the rotating column (23). The rotation axis of the locking plate (24) extends in the vertical direction. One end of the sliding rod (53) that slides out of the top wall of the curb (3) is provided with a clamping groove (531). A receiving groove (241) for the sliding rod (53) to turn into is formed in the locking plate (24). The top wall of the clamping groove (531) abuts against the top wall of the locking plate (24) and restricts the downward movement of the sliding rod (53), thereby restricting the downward movement of the floating cylinder (51) to be located in the through groove (31).

5. The ecological greening system for the comprehensive plot of a sponge city community according to claim 4, characterized in that: When the locking plate (24) is located on the curb (3) and blocks the sliding rod (53) within the curb (3), the floating cylinder (51) slides downward and is located in the through groove (31) to block the through groove (31).

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