Rainwater infiltration and retention type urban road greening structure

Abstract

This invention relates to the field of road greening structure equipment, specifically a rainwater infiltration and retention type urban road greening structure, including an outer protective panel. The outer protective panel is placed vertically within the road greening soil. L-shaped plates are symmetrically welded to the inner wall of the outer protective panel. A permeable plate is horizontally placed at the upper end of the L-shaped plate. The permeable plate has filter holes distributed in a matrix inside. A water storage tank for storing rainwater is located directly below the permeable plate. Multiple support plates are fixedly installed near the top of the outer protective panel, and each support plate has a drip assembly connected to one end. The drip assembly includes an outer shell fixedly installed at one end of the support plate by spot welding. Guide rods are symmetrically installed vertically inside the outer shell. A storage tank is sleeved on the outer wall of the guide rods, and a water outlet is installed on the outer wall of the storage tank. This invention can collect infiltrated rainfall and achieve adaptive automatic drip irrigation of the green vegetation through the collected rainfall.

Description

Technical Field

[0001] This invention relates to the field of road greening structure equipment, specifically a rainwater infiltration and retention type urban road greening structure. Background Technology

[0002] Rainwater infiltration and retention cities refer to cities prone to rainwater infiltration and retention during rainfall. Rainwater infiltration refers to the disruption of the natural infiltration system, preventing rainwater from returning to the ground. An artificial system treats the rainwater falling on the receiving surface and then reintroduces it into the ground. A rainwater infiltration system is a set of systems that combine various equipment based on the receiving surface. This equipment includes infiltration inlets, infiltration wells, infiltration pipes, and infiltration structures to facilitate rainwater infiltration. Rainwater retention refers to the activation of a regional strategic rainwater storage system when rainfall exceeds the city's drainage capacity. Rainwater rapidly flows into modular pools for storage, and is then discharged to designated outlets for reuse after the heavy rain has passed.

[0003] In cities with rainwater infiltration and retention systems, rainwater infiltration and storage devices are typically installed near urban roadside greenery to effectively utilize the infiltrated rainwater. This involves diverting the infiltrated rainwater to a designated location and retaining it there. When the rainfall stops, the rainwater is manually pumped out and used to irrigate the roadside greenery. While this method effectively utilizes rainwater, the overall operation is labor-intensive and cannot adapt to weather conditions for self-irrigation of the roadside greenery. Summary of the Invention

[0004] To address the problems of high labor costs in the overall operation process and the inability to adaptively irrigate roadside green vegetation according to weather conditions in existing technologies, this invention provides a rainwater infiltration and retention type urban roadside greening structure.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a rainwater infiltration and retention type urban road greening structure, including an outer protective panel, the outer protective panel is placed vertically in the road greening soil, L-shaped plates are symmetrically welded on the inner wall of the outer protective panel, an infiltration plate is placed horizontally on the upper end of the L-shaped plate, the interior of the infiltration plate has filter holes distributed in a matrix, a water storage tank for storing rainwater is set directly below the infiltration plate, and a support plate is fixedly installed near the top of the outer protective panel. There are multiple support plates, and one end of each support plate is connected to a drip assembly.

[0006] The drip assembly includes an outer shell fixedly installed on one end of a support plate by spot welding. Guide rods are symmetrically installed vertically inside the outer shell. A storage tank is sleeved on the outer wall of the guide rods. A water outlet is installed on the outer wall of the storage tank. The top of the storage tank is movably inserted into the top of the outer shell. A support spring for applying vertical support force to the storage tank is installed on the outer wall of the guide rods. A reinforcing tube is fixedly installed at the center of the bottom of the outer shell. The bottom of the reinforcing tube passes through the permeation plate and extends into the water storage tank. A DC micro water pump is installed at the center of the top of the storage tank. The positive and negative poles of the DC micro water pump motor are connected to metal guide plates. The inlet and outlet pipes of the DC micro water pump are located on the same side. One end of the inlet pipe passes through the reinforcing tube and is located inside the water storage tank. The outlet pipe is located inside the storage tank. A drip section is provided at the bottom of the storage tank near the inlet pipe. A round hole is opened at the connection between the bottom of the storage tank and the drip section.

[0007] A horizontal plate is fixedly installed on the inner top wall of the water storage tank. A knife-type control switch is installed on the top of the horizontal plate, and a torsion spring is installed at the movable point of the knife-type control switch. A rectangular hole is opened inside the horizontal plate, and a ceramic top block is inserted into the rectangular hole. The top of the ceramic top block is close to the knife-type control switch. A plate is fixedly connected to the bottom of the ceramic top block. The plate is sleeved on the outer wall of the reinforcing pipe. A floating block is installed at the bottom of the plate, and the bottoms of several floating blocks are close to the bottom of the water storage tank.

[0008] A battery is installed on the top of the support plate, and a waterproof cover is installed on the outside of the battery. A power-on head is installed at the center of the bottom of the battery. Square holes are symmetrically opened inside the power-on head, and a mother metal conductor is installed in the square hole. The positive terminal of the battery is electrically connected to a knife-type control switch and one of the mother metal conductors in sequence through wires. The negative terminal of the battery is electrically connected to the other mother metal conductor through wires.

[0009] Specifically, the dripping part includes a dripping pipe rotatably connected to the bottom of the storage tank. A drain hole is provided at the connection between the bottom of the outer shell and the dripping pipe, and the diameter of the drain hole is larger than the outer diameter of the dripping pipe. An arc-shaped groove is provided on the outer wall of the dripping pipe. A positioning rod for applying circumferential extrusion force to the arc-shaped groove is fixedly installed at the bottom of the outer shell. One end of the positioning rod is inserted into the inner side of the arc-shaped groove. A connecting hole is provided at the top of the dripping pipe. The connecting hole and the round hole are located on the same radius circle with the axis of the dripping pipe as the center.

[0010] Specifically, a telescopic sealing sleeve is installed between the battery and the DC micro water pump motor.

[0011] Specifically, a partition plate is provided between the permeation plate and the water storage tank. The two ends of the partition plate are fixedly installed inside the outer protective plate. The two ends of the partition plate are inclined to the horizontal plane, and a water outlet is provided in the middle of the partition plate.

[0012] Specifically, a limiting ring is fixedly installed on the lower part of the inner wall of the drip pipe. The limiting ring has strip-shaped holes at equal intervals inside. A T-shaped rod is inserted into the center of the limiting ring. A return spring is installed between the T-shaped rod and the limiting ring. A sealing protrusion is provided on the outer wall of the T-shaped rod below the limiting ring. The bottom of the T-shaped rod protrudes to the bottom of the drip pipe. A circular groove is provided in the center of the bottom of the T-shaped rod. Oblique through holes are provided at equal intervals on the inner wall of the circular groove at a horizontal position. A light-transmitting block is welded to the bottom end face of the T-shaped rod. An evaporation tank is provided inside the light-transmitting block. The opening of the evaporation tank is located directly below the drain hole. A horizontal pipe is connected to the outer wall of the water outlet pipe. One end of the horizontal pipe passes through the storage tank, and the end of the horizontal pipe is located between the storage tank and the outer shell.

[0013] Specifically, an inclined guide plate is provided on the inner wall of the water outlet pipe near the horizontal pipe.

[0014] Specifically, overflow holes are symmetrically provided on both sides of the water storage tank.

[0015] Specifically, the top of the light-transmitting block is connected to an annular extension plate, and the top of the annular extension plate does not contact the bottom of the outer casing.

[0016] The beneficial effects of this invention are:

[0017] (1) The rainwater infiltration and retention type urban road greening structure of the present invention is equipped with components such as infiltration plate, water storage tank and drip assembly. The present invention uses the infiltration plate to isolate the outer protective wall into two different functional areas. On the basis of meeting the planting needs, the infiltrated rainwater is collected in the water storage tank. As the rainwater level in the water storage tank rises, the rainwater can be automatically pumped out to the storage tank. The rainwater stored in the storage tank will enter the drip pipe through the connecting hole and the round hole, and drip from the bottom of the drip pipe into the greening planting area, realizing the automatic drip irrigation effect of rainwater collection and effectively reducing labor costs.

[0018] (2) The rainwater infiltration and retention type urban road greening structure described in this invention is equipped with structures such as evaporation tanks. The drip irrigation cycle is determined by the time it takes for the rainwater stored in the evaporation tank to evaporate. That is, when the rainwater stored in the evaporation tank evaporates, the return spring is subjected to vertical downward pressure and gradually returns to its initial state. The rebound force generated when the return spring is compressed drives the T-shaped rod to reset, and the oblique through hole is displaced to the inside of the drip pipe again. At this time, the rainwater stored in the storage tank will flow out from the circular groove, realizing drip irrigation of vegetation on sunny days. Drip irrigation is more rational and effectively reduces the waste of rainwater and excessive drip irrigation of vegetation, realizing drip irrigation operation under non-rainy weather conditions.

[0019] (3) The rainwater infiltration and retention type urban road greening structure described in this invention uses a dual-switch method of power head and knife switch. After the rainwater in the water storage tank is used up, the floating block, plate and ceramic top block fall as a whole. The torsion spring drives the knife switch of the knife switch back to the initial position and the knife switch is disconnected. That is, even if the sub-metal guide plate is in contact with the mother metal guide plate when there is no rainwater in the water storage tank, the DC micro water pump cannot enter the working state, thus avoiding the dry burning of the DC micro water pump and effectively increasing the service life of the DC micro water pump. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Cross-sectional view of the overall structure of the present invention Figure 1 ;

[0023] Figure 3 Cross-sectional view of the overall structure of the present invention Figure 2 ;

[0024] Figure 4 This is a partial cross-sectional view of the dripping component of the present invention from a three-dimensional perspective.

[0025] Figure 5 This is a cross-sectional view of the storage tank of the present invention and a perspective view of the drip pipe and the connecting hole from this angle;

[0026] Figure 6 This is a cross-sectional view of the planar portion of the dripping component of the present invention;

[0027] Figure 7 For the present invention Figure 6 A magnified view of a portion of region A in the middle;

[0028] Figure 8 For the present invention Figure 7 A magnified view of a portion of region B in the middle;

[0029] Figure 9 This is a schematic diagram of the overall structure and installation of the present invention;

[0030] In the diagram: 1. Outer enclosure panel; 2. Permeable plate; 3. Water storage tank; 4. Drip assembly; 5. Telescopic sealing sleeve; 6. Partition plate; 11. L-shaped plate; 12. Support plate; 21. Filter hole; 41. Outer shell; 42. Guide rod; 43. Battery; 44. Support spring; 45. Storage tank; 46. DC micro water pump; 47. Reinforcing pipe; 48. Drip section; 460. Sub-metal guide plate; 461. Inlet pipe; 462. Outlet pipe; 463. Horizontal pipe; 31. Horizontal plate; 32. Rectangular hole; 33. Knife gate type 34. Control switch; 35. Ceramic top block; 36. Flat plate; 37. Floating block; 48. Overflow hole; 431. Power head; 432. Mother metal guide plate; 451. Round hole; 411. Drain hole; 481. Drip pipe; 482. Arc groove; 483. Positioning rod; 484. Connecting hole; 71. Limiting ring; 72. T-shaped rod; 73. Return spring; 74. Sealing protrusion; 75. Round groove; 76. Oblique through hole; 77. Light-transmitting block; 78. Evaporation tank; 4621. Inclined diversion plate; 771. Annular extension plate. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Furthermore, the terms used below are defined based on the functionality of this invention and may vary depending on the user's, operator's, or conventions. Therefore, these terms are defined based on the entire contents of this specification.

[0033] See Figure 1-9 The present invention discloses a rainwater infiltration and retention type urban road greening structure, comprising an outer protective panel 1, which is vertically placed in the road greening soil. An L-shaped plate 11 is symmetrically welded to the inner wall of the outer protective panel 1. A permeable plate 2 is horizontally placed at the upper end of the L-shaped plate 11. The interior of the permeable plate 2 has filter holes 21 arranged in a matrix. A water storage tank 3 for storing rainwater is located directly below the permeable plate 2. Support plates 12 are fixedly installed near the top of the outer protective panel 1. Multiple support plates 12 are used, and each support plate 12 has a drip assembly 4 connected to one end. The permeable plate 2 separates the interior space of the outer protective panel 1 into two areas: the area above the permeable plate 2 is the greening planting area, and the area below the permeable plate 2 is the rainwater infiltration and collection area. The installation height of the permeable plate 2 can be adjusted according to the actual type of vegetation planted in the greening planting area, i.e., the vertical drop between the top of the permeable plate 2 and the top of the outer protective panel 1 should be greater than the root length of the planted vegetation.

[0034] It should be noted that in the actual installation process, an installation pit should first be excavated in the soil where the invention is to be installed. The size of the pit should be sufficient to meet the size of the outer protective panel 1. The outer protective panel 1 can be installed by hoisting. Then, the vegetation to be planted is placed in the greening planting area. Finally, the soil is backfilled into the greening planting area to complete the overall on-site installation of the invention.

[0035] See Figures 1-5 The drip assembly 4 includes an outer shell 41 fixedly installed at one end of a support plate 12 by spot welding. Guide rods 42 are symmetrically installed vertically inside the outer shell 41. A storage tank 45 is sleeved on the outer wall of the guide rods 42. A water tap is installed on the outer wall of the storage tank 45, which is normally closed. The top of the storage tank 45 is movably inserted into the top of the outer shell 41. A support spring 44 is installed on the outer wall of the guide rods 42 to apply vertical support force to the storage tank 45. A reinforcing tube 47 is fixedly installed at the center of the bottom of the outer shell 41. The bottom of the reinforcing tube 47 passes through the permeation plate 2 and extends into the water storage tank 3. A DC micro water pump 46 is installed at the center of the top of the storage tank 45. The positive and negative poles of the DC micro water pump 46 motor are both connected to the metal guide plate 460. The water inlet pipe 461 and the water outlet pipe 462 of the DC micro water pump 46 are located on the same side. One end of the water inlet pipe 461 passes through the reinforcing pipe 47 and is located inside the water storage tank 3. The water outlet pipe 462 is located inside the storage tank 45. A drip part 48 is provided at the bottom of the storage tank 45 near the water inlet pipe 461. A round hole 451 is opened at the connection between the bottom of the storage tank 45 and the drip part 48. In the absence of rain, there is no rainwater stored in the storage tank 45. The elastic force of the support spring 44 is much greater than the weight of the storage tank 45 and the DC micro water pump 46. The support spring 44 pushes the storage tank 45 to the top of the inner shell 41.

[0036] See Figure 2 and Figure 3A horizontal plate 31 is fixedly installed on the inner top wall of the water storage tank 3. A knife-type control switch 33 is installed on the top of the horizontal plate 31, and a torsion spring is installed at the movable point of the knife switch 33. A rectangular hole 32 is opened inside the horizontal plate 31, and a ceramic top block 34 is inserted into the rectangular hole 32. The top of the ceramic top block 34 is close to the knife switch 33. That is, under normal conditions, the elastic force of the torsion spring drives the knife switch 33 to be close to one side of the ceramic top block 34, and the knife switch 33 is in the open state. A plate 35 is fixedly connected to the bottom of the ceramic top block 34. The plate 35 is sleeved on the outer wall of the reinforcing pipe 47. A floating block 36 is installed at the bottom of the plate 35, and several of them are attached to the bottom of the plate 35. The bottom of the floating blocks 36 is close to the bottom of the water storage tank 3. When it rains, the rainwater falls into the soil in the green planting area. The rainwater seeps in through the gaps in the soil and enters the water storage tank 3 through the filter holes 21. As the amount of rainwater seeping into the water storage tank 3 increases, the floating blocks 36 rise with the rise of the rainwater level in the water storage tank 3 under the action of buoyancy. The rise of the floating blocks 36 causes the plate 35 to move vertically upward on the outer wall of the reinforcing pipe 47. While the plate 35 is moving, it also causes the ceramic top block 34 to rise. During the rise of the ceramic top block 34, a horizontal thrust is applied to the knife switch 33, so that the knife switch 33 changes from the initial open state to the closed state.

[0037] See Figures 1-4A battery 43 is mounted on the top of the support plate 12, and a waterproof cover is installed on the outside of the battery 43. A power-on head 431 is installed at the center of the bottom of the battery 43. The power-on head 431 has symmetrical square holes inside, and a female metal guide plate 432 is installed in the square hole. The positive terminal of the battery 43 is electrically connected to the knife switch 33 and one of the female metal guide plates 432 in sequence through wires. The negative terminal of the battery 43 is electrically connected to the other female metal guide plate 432 through wires. When the support spring 44 pushes the storage tank 45 to the top of the inner shell 41, the power-on head 431 is inserted into the positive and negative metal guide plates 460 of the DC micro water pump 46 motor. The female metal guide plate 432 inside the power-on head 431 is in contact with the metal guide plate 460. In summary, after the knife switch 33 is closed, the battery 43, the knife switch 33, the power-on head 431 and the DC micro water pump 46 are connected. A passage is formed between the DC micro water pumps 46, and the battery 43 supplies power to the DC micro water pump 46. The DC micro water pump 46 enters the working state. The water inlet pipe 461 at the bottom of the DC micro water pump 46 draws the rainwater stored in the water storage tank 3 and discharges it from the water outlet pipe 462 into the storage tank 45 for storage. After the DC micro water pump 46 has been working for a certain period of time, the amount of rainwater stored in the storage tank 45 increases, and the overall mass increases. When the amount of rainwater stored reaches a certain amount, the support spring 44 is compressed and has a rebound force. The storage tank 45 descends vertically along the guide rod 42. When the storage tank 45 descends to the point where the sub-metal guide plate 460 separates from the mother metal guide plate 432, the circuit between the battery 43, the knife-type control switch 33, the power-on head 431 and the DC micro water pump 46 is disconnected, and the DC micro water pump 46 stops working. The rainwater stored in the storage tank 45 can be taken out through the water outlet and used to irrigate the vegetation planted in the green planting area.

[0038] In another embodiment, see Figure 4 and Figure 5The dripping part 48 includes a dripping pipe 481 rotatably connected to the bottom of the storage tank 45. A drain hole 411 is provided at the connection between the bottom of the outer shell 41 and the dripping pipe 481, and the diameter of the drain hole 411 is larger than the outer diameter of the dripping pipe 481. An arc-shaped groove 482 is provided on the outer wall of the dripping pipe 481. A positioning rod 483 for applying circumferential pressure to the arc-shaped groove 482 is fixedly installed at the bottom of the outer shell 41. One end of the positioning rod 483 is inserted into the inner side of the arc-shaped groove 482. A connecting hole 484 is provided at the top of the dripping pipe 481. The connecting hole 484 and the circular hole 451 are located on the same radius circle with the axis of the dripping pipe 481 as the center. The connecting hole 484 is an arc-shaped hole, and the length of the connecting hole 484 is larger than the diameter of the circular hole 451. In the initial state (i.e., when no rainwater is stored in the storage tank 45), the connecting hole 484 and the circular hole 451 are... The sections 51 and 481 are interleaved. The area at the top of the drip pipe 481 without the connecting hole 484 can seal the round hole 451. When the storage tank 45 descends vertically along the guide rod 42, the drip pipe 481 descends along with the storage tank 45. The arc-shaped groove 482 on the outer wall of the drip pipe 481 slides along the outer wall of the positioning rod 483. During this sliding process, the positioning rod 483 applies a circumferential thrust to the inner wall of the arc-shaped groove 482, causing the top of the drip pipe 481 to rotate relative to the bottom of the storage tank 45. After rotating a certain angle, the connecting hole 484 and the round hole 451 change from the initial interleaved state to the overlapping state. The rainwater stored inside the storage tank 45 will enter the drip pipe 481 through the connecting hole 484 and the round hole 451, and drip from the bottom of the drip pipe 481 into the green planting area, realizing the automatic drip irrigation effect of rainwater collection.

[0039] See Figures 1-4 A telescopic sealing sleeve 5 is installed between the storage battery 43 and the DC micro water pump 46 motor. The telescopic sealing sleeve 5 increases the sealing performance between the storage battery 43 and the DC micro water pump 46 motor, ensuring that rainwater will not enter the connection between the sub-metal guide plate 460 and the mother metal guide plate 432 in rainy weather, thereby effectively improving the working safety of the present invention.

[0040] In another embodiment, such as Figure 2 and Figure 3As shown, a partition plate 6 is provided between the permeation plate 2 and the water storage tank 3. The two ends of the partition plate 6 are fixedly installed inside the outer protective plate 1. The two ends of the partition plate 6 are inclined to the horizontal plane. A drain outlet is provided in the middle position of the partition plate 6. When rainwater permeates from the permeation plate 2, it will first flow into the partition plate 6. The rainwater flowing into the partition plate 6 will slide down its inclined area to the middle position, and finally flow into the water storage tank 3 from the drain outlet in the middle position of the partition plate 6. This avoids the permeated rainwater dripping onto the knife switch 33. Furthermore, the actual operating current of the DC micro water pump 46 is small. The DC power of the battery 43 is matched with the current of the DC micro water pump 46. The moisture generated in the rainwater infiltration and collection area will not affect the normal operation of the knife switch 33.

[0041] In another embodiment, see Figures 4-8A limiting ring 71 is fixedly installed at the lower position of the inner wall of the drip pipe 481. The limiting ring has evenly spaced strip-shaped holes inside. A T-shaped rod 72 is inserted into the center of the limiting ring 71. A return spring 73 is installed between the T-shaped rod 72 and the limiting ring 71. A sealing protrusion 74 is provided on the outer wall of the T-shaped rod 72 below the limiting ring 71. The bottom of the T-shaped rod 72 protrudes beyond the bottom of the drip pipe 481. A circular groove 75 is formed at the center of the bottom of the T-shaped rod 72. Oblique through holes 76 are evenly spaced horizontally on the inner wall of the circular groove 75. A light-transmitting block 77 is welded to the bottom end face of the T-shaped rod 72. An evaporation tank 78 is formed inside the light-transmitting block 77. The opening of the evaporation tank 78 is located at the drain. Directly below the hole 411, a horizontal pipe 463 is connected to the outer wall of the outlet pipe 462. One end of the horizontal pipe 463 passes through the storage tank 45, and the end of the horizontal pipe 463 is located between the storage tank 45 and the outer shell 41. In the initial state (when there is no rainwater stored in the storage tank 45), the return spring 73 pushes the T-shaped rod 72 to the highest point, that is, the outer wall of the sealing protrusion 74 is close to the bottom of the limiting ring 7. The oblique through hole 76 is connected to the inside of the drip pipe 481. When rainwater flows through the drip pipe 481, the rainwater can flow out along the oblique through hole 76 and the circular groove 75. When the DC micro water pump 46 enters the working state and performs discharge operations through the outlet pipe 462, the rainwater discharged from the outlet pipe 462 will... The rainwater flows to the horizontal pipe 463 and then into the outer casing 41. Rainwater entering the outer casing 41 enters the evaporation tank 78 through the gap between the drain hole 411 and the drip pipe 481. As the amount of rainwater stored in the evaporation tank 78 increases, the return spring 73 experiences increased downward pressure, gradually changing from its initial extended state to a compressed state. This causes the T-shaped rod 72 to slide down the inner wall of the limiting ring 71. After sliding a certain distance, the sealing protrusion 74 abuts against the bottom of the drip pipe 481, sealing the bottom of the drip pipe 481. At this point, the rainwater stored in the storage tank 45 will no longer drip through the drip pipe 481. This means that during rainy weather, when the storage tank 45 is full of rainwater and the DC micro water pump 46 stops working, the rainwater stored in the storage tank 45 will not drip from the bottom of the drip pipe 481. When the rain stops, the evaporation tank 78 can be understood as a timed structure. When the rainwater stored in the evaporation tank 78 evaporates, the return spring 73 is subjected to vertical downward pressure and gradually returns to its initial state. The rebound force generated when the return spring 73 is compressed drives the T-shaped rod 72 to reset, and the oblique through hole 76 is displaced again into the interior of the drip pipe 481. At this time, the rainwater stored in the storage tank 45 will flow out from the circular groove 75, realizing drip irrigation of vegetation on sunny days. Drip irrigation is more rational and effectively reduces the waste of rainwater and the over-drip irrigation of vegetation.

[0042] Furthermore, taking an outdoor temperature of 20-30 degrees Celsius and an evaporation tank 78 with a capacity of 20 liters as an example, under the influence of outdoor wind and sunlight, the evaporation time of the 20 liters of rainwater stored in the evaporation tank 78 is one week (with an error of one day depending on the specific situation). That is, when the storage tank 45 is full of rainwater, after the rainfall stops, one week later the rainwater stored in the storage tank 45 will drip from the circular trough 75 and drip irrigate the vegetation planted in the green planting area, meeting the watering needs of most vegetation in an outdoor temperature of 20-30 degrees Celsius. After the rainwater stored in the storage tank 45 has dripped to irrigate part of the area, the overall weight of the storage tank 45 and the rainwater decreases. The rebound force generated when the support spring 44 is compressed pushes the storage tank 45 upward, and the sub-metal guide plate 460 and the mother metal guide plate 460... When plate 432 contacts again, the battery 43, the knife-type control switch 33, the power connector 431, and the DC micro water pump 46 re-establish a circuit. The DC micro water pump 46 operates and pumps rainwater from the water tank 3 to replenish the storage tank 45, repeating this cycle. If the rainwater in the water tank 3 is used up, the float block 36, the plate 35, and the ceramic top block 34 descend as a whole. The torsion spring drives the knife-type control switch 33 back to its initial position, and the knife-type control switch 33 disconnects. That is, even if the sub-metal guide plate 460 contacts the mother metal guide plate 432 when there is no rainwater in the water tank 3, the DC micro water pump 46 cannot enter the working state, thus avoiding the DC micro water pump 46 from dry burning and effectively increasing the service life of the DC micro water pump 46.

[0043] See Figure 6 An inclined guide plate 4621 is provided on the inner wall of the outlet pipe 462 near the horizontal pipe 463. When rainwater passes through the outlet pipe 462, some of the rainwater flowing inside will enter the horizontal pipe 463, thereby increasing the inflow of rainwater into the horizontal pipe 463 and ensuring that the evaporation tank 78 can be filled with rainwater.

[0044] See Figure 3 The water storage tank 3 has overflow holes 37 symmetrically opened on both sides. When the rainwater level stored in the water storage tank 3 exceeds the overflow hole 37, the rainwater will enter the soil layer through the overflow hole 37.

[0045] See Figure 7 The top of the light-transmitting block 77 is connected to an annular extension plate 771. The top of the annular extension plate 771 does not contact the bottom of the outer shell 41, thereby reducing the distance between the opening of the evaporation tank 78 and the drain hole 411 and preventing excessive rainwater from flowing into the external environment through the gap between the opening of the evaporation tank 78 and the drain hole 411.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rainwater infiltration and retention type urban road greening structure, comprising an outer protective panel (1), characterized in that: The outer protective panel (1) is placed vertically in the soil of the road greening. The inner wall of the outer protective panel (1) is symmetrically welded with L-shaped plates (11). The upper end of the L-shaped plate (11) is horizontally placed with a permeable plate (2). The interior of the permeable plate (2) has filter holes (21) arranged in a matrix. A water storage tank (3) for storing rainwater is set directly below the permeable plate (2). A support plate (12) is fixedly installed near the top of the outer protective panel (1). There are multiple support plates (12), and one end of each support plate (12) is connected to a drip assembly (4). The drip assembly (4) includes an outer shell (41) fixedly installed on one end of a support plate (12) by spot welding. Guide rods (42) are symmetrically installed vertically inside the outer shell (41). A storage tank (45) is sleeved on the outer wall of the guide rods (42). A water tap is installed on the outer wall of the storage tank (45). The top of the storage tank (45) is movably inserted into the top of the outer shell (41). A support spring (44) for applying vertical support force to the storage tank (45) is installed on the outer wall of the guide rods (42). A reinforcing tube (47) is fixedly installed at the center of the bottom of the outer shell (41). The bottom of the reinforcing tube (47) penetrates through the permeation plate (2) and extends... A DC micro water pump (46) is installed at the center of the top of the storage tank (45) and extends into the water storage tank (3). The positive and negative poles of the DC micro water pump (46) motor are connected to the metal guide plate (460). The water inlet pipe (461) and water outlet pipe (462) of the DC micro water pump (46) are located on the same side. One end of the water inlet pipe (461) passes through the reinforcing pipe (47) and is located inside the water storage tank (3). The water outlet pipe (462) is located inside the storage tank (45). A drip section (48) is provided at the bottom of the storage tank (45) near the water inlet pipe (461). A round hole (451) is opened at the connection between the bottom of the storage tank (45) and the drip section (48). A horizontal plate (31) is fixedly installed on the top inner wall of the water storage tank (3). A knife-type control switch (33) is installed on the top of the horizontal plate (31), and a torsion spring is installed at the movable point of the knife-type control switch (33). A rectangular hole (32) is opened inside the horizontal plate (31), and a ceramic top block (34) is inserted into the rectangular hole (32). The top of the ceramic top block (34) is close to the knife of the knife-type control switch (33). A plate (35) is fixedly connected to the bottom of the ceramic top block (34). The plate (35) is sleeved on the outer wall of the reinforcing pipe (47). A floating block (36) is installed at the bottom of the plate (35), and the bottoms of several floating blocks (36) are close to the bottom of the water storage tank (3). A battery (43) is installed on the top of the support plate (12). A waterproof cover is installed on the outside of the battery (43). A power-on head (431) is installed at the center of the bottom of the battery (43). A square hole is symmetrically opened inside the power-on head (431), and a mother metal conductor (432) is installed in the square hole. The positive terminal of the battery (43) is electrically connected to the knife switch (33) and one of the mother metal conductors (432) in sequence through a wire. The negative terminal of the battery (43) is electrically connected to the other mother metal conductor (432) through a wire.

2. The rainwater infiltration and retention type urban road greening structure according to claim 1, characterized in that: The dripping part (48) includes a dripping pipe (481) rotatably connected to the bottom of the storage tank (45). A drain hole (411) is provided at the connection between the bottom of the outer shell (41) and the dripping pipe (481), and the diameter of the drain hole (411) is larger than the outer diameter of the dripping pipe (481). An arc groove (482) is provided on the outer wall of the dripping pipe (481). A positioning rod (483) for applying circumferential extrusion force to the arc groove (482) is fixedly installed at the bottom of the outer shell (41). One end of the positioning rod (483) is inserted into the inner side of the arc groove (482). A connecting hole (484) is provided at the top of the dripping pipe (481). The connecting hole (484) and the round hole (451) are located on the same radius circle with the axis of the dripping pipe (481) as the center.

3. The rainwater infiltration and retention type urban road greening structure according to claim 1, characterized in that: A telescopic sealing sleeve (5) is installed between the storage battery (43) and the DC micro water pump (46) motor.

4. The rainwater infiltration and retention type urban road greening structure according to claim 1, characterized in that: A partition plate (6) is provided between the permeation plate (2) and the water storage tank (3). The two ends of the partition plate (6) are fixedly installed inside the outer enclosure plate (1). The two ends of the partition plate (6) are inclined to the horizontal plane. A water outlet is provided in the center of the partition plate (6).

5. A rainwater infiltration and retention type urban road greening structure according to claim 2, characterized in that: A limiting ring (71) is fixedly installed on the lower part of the inner wall of the drip pipe (481). The limiting ring has strip holes at equal intervals inside. A T-shaped rod (72) is inserted into the center of the limiting ring (71). A return spring (73) is installed between the T-shaped rod (72) and the limiting ring (71). A sealing protrusion (74) is provided on the outer wall of the T-shaped rod (72) below the limiting ring (71). The bottom of the T-shaped rod (72) protrudes out of the bottom of the drip pipe (481). A circular groove is provided in the center of the bottom of the T-shaped rod (72). (75) The inner wall of the circular groove (75) is provided with oblique through holes (76) at equal intervals at the horizontal position. A light-transmitting block (77) is welded to the bottom end face of the T-shaped rod (72). An evaporation tank (78) is provided inside the light-transmitting block (77). The opening of the evaporation tank (78) is located directly below the drain hole (411). A horizontal pipe (463) is connected to the outer wall of the water outlet pipe (462). One end of the horizontal pipe (463) passes through the storage tank (45), and the end of the horizontal pipe (463) is located between the storage tank (45) and the outer shell (41).

6. A rainwater infiltration and retention type urban road greening structure according to claim 5, characterized in that: An inclined diversion plate (4621) is provided on the inner wall of the water outlet pipe (462) near the horizontal pipe (463).

7. The rainwater infiltration and retention type urban road greening structure according to claim 1, characterized in that: The water storage tank (3) has overflow holes (37) symmetrically opened on both sides.

8. A rainwater infiltration and retention type urban road greening structure according to claim 5, characterized in that: The top of the light-transmitting block (77) is connected to an annular extension plate (771), and the top of the annular extension plate (771) does not contact the bottom of the outer shell (41).

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