Rainwater permeation and retention type urban road greening structure

Abstract

The invention relates to the field of road greening structure equipment, in particular to a rainwater permeation and retention type urban road greening structure which comprises an outer protective surrounding plate, the outer protective surrounding plate is vertically placed in road greening soil, L-shaped plates are symmetrically welded to the inner wall of the outer protective surrounding plate, permeation plates are horizontally placed at the upper ends of the L-shaped plates, and the permeation plates are arranged at the lower ends of the L-shaped plates. Water filtering holes are distributed in the permeation plate in a matrix mode, a water storage tank used for storing rainwater is arranged under the permeation plate, a plurality of supporting plates are fixedly installed at the position close to the top of the outer protection surrounding plate, and one end of each supporting plate is connected with a water dripping assembly; the water dripping assembly comprises an outer shell fixedly installed at one end of the supporting plate through spot welding, guide rods are symmetrically installed in the outer shell in the vertical direction, the outer walls of the guide rods are sleeved with storage tanks, and water outlet faucets are installed on the outer walls of the storage tanks. And the rainwater self-adaptive automatic drip irrigation of the greening vegetation is realized through the collected rainfall.

Description

Technical Field

[0001] The invention relates to the field of road greening structure equipment, in particular to a rainwater infiltration and retention type urban road greening structure. Background Art

[0002] Rainwater infiltration and retention cities refer to a type of city that is prone to rainwater infiltration and retention in rainy weather. Rainwater infiltration refers to a treatment system in which the natural infiltration system of the original ecology is destroyed and rainwater cannot be replenished back to the ground. The rainwater that falls on the rain-receiving surface is artificially treated and then replenished back to the ground. The rainwater infiltration system is a set of systems that are completed according to the different rain-receiving surfaces and combined with related equipment. The related equipment includes: infiltration rainwater inlets, infiltration rainwater wells, infiltration rainwater pipes, and infiltration rainwater structures to complete rainwater infiltration; rainwater retention refers to when the rainfall is greater than the city's drainage volume, the regional rainwater strategic reserve system is activated, and the rainwater quickly flows into the module pool, storing a large amount of rainwater, and then discharged to the designated outlet for use after the heavy rain.

[0003] In rainwater infiltration and retention cities, in order to effectively utilize the infiltrated rainwater, rainwater infiltration storage devices are generally installed near urban road greening, that is, the rainwater is infiltrated and diverted to a designated location, and the rainwater is retained in the area. When the rain stops, the rainwater is manually pumped out through a pumping device and irrigated on the road greening vegetation. Although this method can effectively utilize rainwater, the overall operation process has high labor costs and cannot perform adaptive irrigation of road greening vegetation according to weather conditions. Summary of the invention

[0004] In view of the problems in the prior art that the overall operation process has high labor costs and cannot adaptively water road greening vegetation according to weather conditions, the present invention provides a rainwater infiltration and retention type urban road greening structure.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a rainwater infiltration and retention type urban road greening structure, comprising an outer guardrail, the outer guardrail is vertically placed in the road greening soil, the inner wall of the outer guardrail is symmetrically welded with an L-shaped plate, the upper end of the L-shaped plate is horizontally placed with a permeation plate, the inside of the permeation plate is provided with filter holes distributed in a matrix, a water storage tank for storing rainwater is arranged directly below the permeation plate, a support plate is fixedly installed near the top of the outer guardrail, the number of the support plates is multiple, and one end of each support plate is connected to a drip assembly;

[0006] The drip assembly includes an outer shell body fixedly mounted on one end of a support plate by spot welding, a guide rod is symmetrically mounted in the vertical direction inside the outer shell body, a storage tank is sleeved on the outer wall of the guide rod, a water outlet tap is mounted on the outer wall of the storage tank, the top of the storage tank is movably plugged into the top of the outer shell body, a support spring for applying a vertical support force to the storage tank is mounted on the outer wall of the guide rod, a reinforcement pipe is fixedly mounted at the center of the bottom of the outer shell body, the bottom of the reinforcement pipe passes through the permeation plate and extends into the water storage tank, a DC micro water pump is mounted at the center of the top of the storage tank, the positive and negative poles of the DC micro water pump motor are both connected to a sub-metal guide plate, the water inlet pipe and the water outlet pipe of the DC micro water pump are located on the same side, one end of the water inlet pipe passes through the reinforcement pipe and is located in the water storage tank, the water outlet pipe is located in the storage tank, a drip portion is arranged at the bottom of the storage tank near the water inlet pipe, and a circular hole is provided at the connection between the bottom of the storage tank and the drip portion;

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

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

[0009] Specifically, the dripping part includes a dripping pipe rotatably connected to the bottom of the storage tank, a drainage hole is provided at the connection between the bottom of the outer shell and the dripping pipe, and the diameter of the drainage 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, and a positioning rod for applying a 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, and the connecting hole and the circular hole are located on a circle with the same radius 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 arranged between the infiltration plate and the water tank, both ends of the partition plate are fixedly installed inside the outer enclosure plate, both ends of the partition plate are inclined to the horizontal plane, and a water leakage hole is opened in the center of the partition plate.

[0012] Specifically, a limit ring is fixedly installed at a lower position on the inner wall of the drip pipe, and strip holes are opened at equal intervals inside the limit ring. A T-bar is inserted in the center of the limit ring, and a reset spring is installed between the T-bar and the limit ring. A sealing protrusion is arranged on the outer wall of the T-bar and located below the limit ring. The bottom of the T-bar is exposed to the bottom of the drip pipe, and a circular groove is opened at a center position of the bottom of the T-bar. Oblique through holes are opened at equal intervals in the horizontal position of the inner wall of the circular groove. A light-transmitting block is welded at the bottom end face of the T-bar, and an evaporation groove is opened inside the light-transmitting block. The notch of the evaporation groove is located directly below the drain hole. A transverse tube is connected to the outer wall of the outlet pipe, and one end of the transverse tube passes through the storage tank, and the end of the transverse tube 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 transverse 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 is not in contact with the bottom of the outer shell.

[0016] Beneficial effects of the present invention:

[0017] (1) The rainwater infiltration and retention type urban road greening structure described in the present invention is provided with components such as an infiltration plate, a water storage tank and a drip assembly. The present invention isolates the outer guardrail into two different action areas through the infiltration plate. On the basis of meeting the needs of vegetation planting, the infiltrated rainwater is collected in the water storage tank, and as the rainwater level in the water storage tank rises, the rainwater can be automatically pumped into the storage tank. The rainwater stored in the storage tank will enter the drip pipe along the connecting hole and the circular hole, and drip from the bottom of the drip pipe into the greening planting area, thereby achieving 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 the present invention is provided with an evaporation tank and other structures. The length of time for the rainwater stored in the evaporation tank to evaporate is used as the drip irrigation cycle. 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-bar 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. The drip irrigation is more rational, and the waste of rainwater and excessive drip irrigation of vegetation are effectively reduced, realizing drip irrigation in adaptive non-rainy weather.

[0019] (3) The rainwater infiltration and retention type urban road greening structure described in the present invention adopts a dual switch mode of an energizer head and a knife-type control switch. After the rainwater in the water tank is used up, the floating block, the flat plate and the ceramic top block drop as a whole, and the torsion spring drives the knife of the knife-type control switch back to the initial position, and the knife-type control switch is disconnected. That is, when there is no rainwater in the water tank, even if the sub-metal guide plate contacts the parent metal guide plate, the DC micro water pump cannot enter the working state, thereby avoiding the dry burning of the DC micro water pump and effectively increasing the service life of the DC micro water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

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

[0022] Figure 2 The overall structure of the present invention is partially cut away Figure 1 ;

[0023] Figure 3 The overall structure of the present invention is partially cut away Figure 2 ;

[0024] Figure 4 A partial cross-sectional view of a drip assembly of the present invention from a three-dimensional perspective;

[0025] Figure 5 It 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 perspective;

[0026] Figure 6 It is a planar partial cross-sectional view of the drip assembly of the present invention;

[0027] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of the middle A area;

[0028] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of the middle B area;

[0029] Fig. 9 It is a schematic diagram of the overall structure installation of the present invention;

[0030] In the figure: 1, outer guard plate; 2, penetration plate; 3, water storage tank; 4, drip assembly; 5, telescopic sealing sleeve; 6, partition plate; 11, L-shaped plate; 12, support plate; 21, water filter hole; 41, outer shell; 42, guide rod; 43, battery; 44, support spring; 45, storage tank; 46, DC micro water pump; 47, reinforcement pipe; 48, drip part; 460, sub-metal guide; 461, water inlet pipe; 462, water outlet pipe; 463, transverse pipe; 31, transverse plate; 32, rectangular hole; 33, gate knife type Control switch; 34, ceramic top block; 35, flat plate; 36, floating block; 37, overflow hole; 431, power supply head; 432, parent metal guide; 451, round hole; 411, drain hole; 481, drip pipe; 482, arc groove; 483, positioning rod; 484, connecting hole; 71, limit ring; 72, T-bar; 73, reset spring; 74, sealing protrusion; 75, round groove; 76, oblique through hole; 77, light-transmitting block; 78, evaporation tank; 4621, inclined drainage plate; 771, annular extension plate. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] In addition, the terms used below are defined based on the functions of the present invention and may differ depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.

[0033] See also Figure 1-9 The rainwater infiltration and retention type urban road greening structure described in the present invention comprises an outer guardrail 1, which is vertically placed in the road greening soil, and the inner wall of the outer guardrail 1 is symmetrically welded with an L-shaped plate 11, and a permeation plate 2 is horizontally placed on the upper end of the L-shaped plate 11, and the inside of the permeation plate 2 is provided with water filter holes 21 distributed in a matrix, and a water storage tank 3 for storing rainwater is arranged directly below the permeation plate 2, and a support plate 12 is fixedly installed near the top of the outer guardrail 1, and the number of the support plates 12 is multiple, and one end of each support plate 12 is connected to a drip assembly 4, and the inner space of the outer guardrail 1 is separated into two areas by the permeation plate 2, the upper area of ​​the permeation plate 2 is the greening planting area, and the lower area of ​​the permeation plate 2 is the rainwater infiltration collection area, and the installation level of the permeation plate 2 can be actually installed and adjusted according to the type of vegetation planted in the actual greening planting area, that is, the vertical drop between the top of the permeation plate 2 and the top of the outer guardrail 1 is greater than the root length of the planted vegetation;

[0034] It should be noted that, in the actual installation process, an installation pit should be excavated at the installation soil of the present invention first. The size of the pit can meet the size of the outer guardrail 1. The outer guardrail 1 can be installed by hoisting, and 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 present invention.

[0035] See also Figure 1-Figure 5 The drip assembly 4 includes an outer shell 41 fixedly mounted on one end of the support plate 12 by spot welding, a guide rod 42 is symmetrically mounted in the vertical direction inside the outer shell 41, a storage tank 45 is sleeved on the outer wall of the guide rod 42, a water outlet tap is mounted on the outer wall of the storage tank 45, and the water outlet tap is normally in a closed state. The top of the storage tank 45 is movably plugged into the top of the outer shell 41, and a support spring 44 for applying a vertical support force to the storage tank 45 is mounted on the outer wall of the guide rod 42. A reinforcement pipe 47 is fixedly mounted at the center of the bottom of the outer shell 41, and the bottom of the reinforcement pipe 47 passes through the permeation plate 2 and extends into the water storage tank 3. A DC micro water pump 46 is mounted 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 sub-metal guide 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 reinforcement pipe 47 and is located in the water storage tank 3. The water outlet pipe 462 is located in the storage tank 45. A drip portion 48 is provided at the bottom of the storage tank 45 near the water inlet pipe 461, and a circular hole 451 is provided at the connection between the bottom of the storage tank 45 and the drip portion 48. In non-rainy weather, no rainwater is stored in the storage tank 45. The elastic force of the support spring 44 is much greater than the gravity of the storage tank 45 and the DC micro water pump 46. The support spring 44 pushes the storage tank 45 to be located at the top of the inner part of the outer shell 41.

[0036] See also Figure 2 and Figure 3A horizontal plate 31 is fixedly installed on the top inner wall of the water 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 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, that is, under normal conditions, the elastic force of the torsion spring drives the knife of the knife-type control switch 33 to be close to one side of the ceramic top block 34, and the knife-type control switch 33 is in an off state. A flat plate 35 is fixedly connected to the bottom of the ceramic top block 34, and the flat plate 35 is sleeved on the outer wall of the reinforcement pipe 47. A floating block 36 is installed at the bottom of the flat plate 35, and a plurality of floating blocks 36 are installed at the bottom of the flat plate 35. The bottom of the floating block 36 is close to the bottom of the water tank 3. When it rains, rainwater falls on the soil in the green planting area, and the rainwater penetrates through the internal gap of the soil. The penetrated rainwater enters the water tank 3 through the water filter hole 21 for storage. As the amount of rainwater seeping into the water tank 3 increases, the floating block 36 rises with the rise of the liquid level of rainwater stored in the water tank 3 under the action of buoyancy. The rise of the floating block 36 drives the flat plate 35 to move vertically upward on the outer wall of the reinforcement pipe 47. While the flat plate 35 moves, it drives the ceramic top block 34 to rise. During the rise of the ceramic top block 34, a horizontal thrust is applied to the knife of the knife-type control switch 33, so that the knife-type control switch 33 changes from the initial open state to the closed state.

[0037] See also Figure 1-Figure 4A battery 43 is installed on the top of the support plate 12, and a waterproof cover is installed on the outside of the battery 43. An energizing head 431 is installed in the center of the bottom of the battery 43. A square hole is symmetrically opened inside the energizing head 431, and a parent metal conductor 432 is installed in the square hole. The positive electrode of the battery 43 is electrically connected to the knife-type control switch 33 and one of the parent metal conductors 432 in sequence through a wire, and the negative electrode of the battery 43 is electrically connected to the other parent metal conductor 432 through a wire. When the support spring 44 pushes the storage tank 45 to be located at the top of the inner part of the outer shell 41, the energizing head 431 is plugged into the positive and negative sub-metal conductors 460 of the DC micro water pump 46 motor, and the parent metal conductor 432 inside the energizing head 431 is in contact with the sub-metal conductor 460. In summary, after the knife-type control switch 33 is closed, the battery 43, the knife-type control switch 33, the energizing head 431 and the DC micro A passage is formed between the DC micro water pump 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 tank 3 and discharges it from the water outlet pipe 462 to the storage tank 45 for storage. After the DC micro water pump 46 has been working for a certain period of time, the rainwater stored in the storage tank 45 increases and the overall mass increases. When the amount of stored rainwater reaches a certain amount, the support spring 44 is compressed and has a rebound force, and the storage tank 45 drops vertically along the guide rod 42. When the storage tank 45 drops to the separation of the sub-metal guide piece 460 and the parent metal guide piece 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 is taken out through the water outlet faucet and can be used to irrigate the vegetation planted in the green planting area.

[0038] In another embodiment, see Figure 4 and Figure 5The dripping portion 48 includes a dripping pipe 481 rotatably connected to the bottom of the storage tank 45, a drainage 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 drainage 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 a 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 on 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, and the connecting hole 484 is a circular arc hole, the length of the connecting hole 484 is larger than the diameter of the circular hole 451, and in the initial state (that is, when no rainwater is stored in the storage tank 45), the connecting hole 484 and the circular hole 4 51 are in a staggered state, and the area on the top of the drip pipe 481 where the connecting hole 484 is not provided can seal the circular 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, and the arc groove 482 opened on the outer wall of the drip pipe 481 slides along the outer wall of the positioning rod 483. During the sliding process, the positioning rod 483 applies a circumferential thrust to the inner wall of the arc groove 482, so that the top of the drip pipe 481 rotates relative to the bottom of the storage tank 45. After rotating to a certain angle, the connecting hole 484 and the circular hole 451 change from the initial staggered state to the overlapping state, and the rainwater stored in the storage tank 45 will enter the drip pipe 481 along the connecting hole 484 and the circular hole 451, and drip from the bottom of the drip pipe 481 into the greening planting area, realizing the automatic drip irrigation effect of rainwater collection.

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

[0040] In another embodiment, if Figure 2 and Figure 3As shown, a partition plate 6 is arranged between the infiltration plate 2 and the water storage tank 3, and both ends of the partition plate 6 are fixedly installed inside the outer guard plate 1, and both ends of the partition plate 6 are inclined to the horizontal plane. A water leakage port is opened in the center position of the partition plate 6. When rainwater penetrates from the infiltration plate 2, it will first flow into the partition plate 6, and the rainwater flowing into the partition plate 6 will slide along its inclined position area to the center position, and finally flow into the water storage tank 3 from the water leakage port at the center position of the partition plate 6, thereby preventing the infiltrated rainwater from dripping onto the knife-type control switch 33. It is further supplemented that the actual working current of the DC micro water pump 46 is small, and the DC power of the battery 43 matches the current of the DC micro water pump 46. Part of the moisture generated in the rainwater infiltration collection area will not affect the normal operation of the knife-type control switch 33.

[0041] In another embodiment, see Figure 4-Figure 8The inner wall of the dripping pipe 481 is fixedly installed with a limit ring 71 at a lower position, and strip holes are opened at equal intervals inside the limit ring. A T-shaped rod 72 is inserted in the center of the limit ring 71, and a return spring 73 is installed between the T-shaped rod 72 and the limit ring 71. A sealing protrusion 74 is arranged on the outer wall of the T-shaped rod 72 and located below the limit ring 71. The bottom of the T-shaped rod 72 is exposed to the bottom of the dripping pipe 481. A circular groove 75 is opened at the center of the bottom of the T-shaped rod 72. Oblique through holes 76 are opened at equal intervals on the inner wall of the circular groove 75 at a horizontal position. A light-transmitting block 77 is welded at the bottom end face of the T-shaped rod 72. An evaporation groove 78 is opened inside the light-transmitting block 77. The notch of the evaporation groove 78 is located at the drainage hole. Directly below the hole 411, the outer wall of the outlet pipe 462 is connected with a transverse pipe 463, one end of the transverse pipe 463 penetrates the storage tank 45, and the end of the transverse pipe 463 is located between the storage tank 45 and the outer shell 41. In the initial state (when no rainwater is stored in the storage tank 45), the return spring 73 pushes the T-bar 72 to the highest point, that is, the outer wall of the sealing protrusion 74 is close to the bottom of the limit ring 7, and the oblique through hole 76 is connected with 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 discharges through the outlet pipe 462, the rainwater partially discharged from the outlet pipe 462 will The rainwater flows to the transverse pipe 463 and flows into the outer shell 41 through the transverse pipe 463. The rainwater entering the outer shell 41 will enter 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 vertical downward pressure on the return spring 73 increases, and the return spring 73 gradually changes from the initial elongated state to the compressed state, that is, the T-bar 72 slides down along the inner wall of the limit ring 71. After the T-bar 72 slides down a certain distance, the sealing protrusion 74 will abut against the bottom of the drip pipe 481 and seal the bottom of the drip pipe 481 through the sealing protrusion 74. At this time, the rainwater stored in the storage tank 45 will not be able to drip through the drip pipe 481. This situation can be It is understood that in rainy weather, after 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 timing structure. When the rainwater stored in the evaporation tank 78 evaporates, the return spring 73 is gradually restored to its initial state by the vertical downward pressure. The rebound force generated when the return spring 73 is compressed drives the T-bar 72 to reset, and the oblique through hole 76 moves to the inside of the drip pipe 481 again. At this time, the rainwater stored in the storage tank 45 will flow out from the circular groove 75, realizing the drip irrigation operation of vegetation on sunny days, making the drip irrigation more rational, and effectively reducing the waste of rainwater and excessive drip irrigation of vegetation;

[0042] Furthermore, taking the outdoor temperature of 20-30 degrees Celsius and the capacity of the evaporation tank 78 of 20 liters as an example, under the action of outdoor wind and light, the evaporation time of the 20 liters of rainwater stored in the evaporation tank 78 is one week (the error before and after is 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 groove 75 and drip-irrigate the vegetation planted in the green planting area, meeting the watering needs of most vegetation in an environment with an outdoor temperature of 20-30 degrees Celsius; when the rainwater stored in the storage tank 45 is drip-irrigated, the overall weight of the storage tank 45 and the rainwater is reduced, and the rebound force generated when the support spring 44 is compressed pushes the storage tank 45 to rise, and the sub-metal guide plate 460 and the parent metal guide plate The plate 432 contacts again, and the battery 43, the knife-type control switch 33, the power-on head 431 and the DC micro water pump 46 form a passage again. The DC micro water pump 46 works and draws rainwater from the water tank 3 to replenish it into the storage tank 45, and this cycle is repeated. If the rainwater in the water tank 3 is used up, the floating block 36, the flat plate 35 and the ceramic top block 34 drop as a whole, and the torsion spring drives the knife of the knife-type control switch 33 back to the initial position, and the knife-type control switch 33 is disconnected, that is, under the condition that there is no rainwater in the water tank 3, even if the sub-metal guide plate 460 contacts the parent metal guide plate 432, the DC micro water pump 46 cannot enter the working state, thereby avoiding the dry burning of the DC micro water pump 46 and effectively increasing the service life of the DC micro water pump 46.

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

[0044] See also Figure 3 Overflow holes 37 are symmetrically provided on both sides of the water storage tank 3. When the rainwater level stored in the water storage tank 3 exceeds the overflow holes 37, the rainwater will flow into the soil layer along the overflow holes 37.

[0045] See also Figure 7 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, thereby reducing the distance between the notch 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 notch of the evaporation tank 78 and the drain hole 411.

[0046] The above shows and describes 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 above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rainwater infiltration and retention urban road greening structure, comprising an outer guardrail (1), characterized in that: The outer guard plate (1) is vertically placed in the road greening soil, the inner wall of the outer guard plate (1) is symmetrically welded with an L-shaped plate (11), the upper end of the L-shaped plate (11) is horizontally placed with a permeation plate (2), the inside of the permeation plate (2) is provided with water filtering holes (21) distributed in a matrix, a water storage tank (3) for storing rainwater is arranged directly below the permeation plate (2), and a support plate (12) is fixedly installed near the top of the outer guard plate (1), the number of the support plates (12) is multiple, and one end of each support plate (12) is connected to a drip assembly (4); The drip assembly (4) comprises an outer shell (41) fixedly mounted on one end of a support plate (12) by spot welding, a guide rod (42) is symmetrically mounted in the vertical direction inside the outer shell (41), a storage tank (45) is sleeved on the outer wall of the guide rod (42), a water outlet tap is mounted on the outer wall of the storage tank (45), the top of the storage tank (45) is movably plugged into the top of the outer shell (41), a support spring (44) for applying a vertical support force to the storage tank (45) is mounted on the outer wall of the guide rod (42), a reinforcement pipe (47) is fixedly mounted at the center of the bottom of the outer shell (41), the bottom of the reinforcement pipe (47) penetrates the permeation plate (2) and extends to The DC micro water pump (46) 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 reinforcement pipe (47) and is located in the water storage tank (3), the water outlet pipe (462) is located in the storage tank (45), a dripping portion (48) is provided at the bottom of the storage tank (45) near the water inlet pipe (461), and a circular hole (451) is provided at the connection between the bottom of the storage tank (45) and the dripping portion (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 of the knife-type control switch (33), a rectangular hole (32) is opened inside the horizontal plate (31), a ceramic top block (34) is inserted inside the rectangular hole (32), the top of the ceramic top block (34) is closely attached to the knife of the knife-type control switch (33), a flat plate (35) is fixedly connected to the bottom of the ceramic top block (34), the flat plate (35) is sleeved on the outer wall of the reinforcement pipe (47), a floating block (36) is installed on the bottom of the flat plate (35), and the bottoms of a plurality of the floating blocks (36) are closely attached to the bottom of the water storage tank (3); A storage battery (43) is installed on the top of the support plate (12), a waterproof cover is installed on the outside of the storage battery (43), a power supply head (431) is installed at the center of the bottom of the storage battery (43), square holes are symmetrically opened inside the power supply head (431), and a parent metal guide piece (432) is installed in the square hole, the positive electrode of the storage battery (43) is electrically connected to the knife-type control switch (33) and one of the parent metal guide pieces (432) in sequence through a wire, and the negative electrode of the storage battery (43) is electrically connected to the other parent metal guide piece (432) through a wire.

2. A rainwater infiltration and retention urban road greening structure according to claim 1, characterized in that: The dripping part (48) comprises a dripping pipe (481) rotatably connected to the bottom of the storage tank (45); a drainage hole (411) is provided at the connection between the bottom of the outer shell (41) and the dripping pipe (481); the diameter of the drainage 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 a circumferential extrusion force 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 a circle with the same radius and the center being the axis of the dripping pipe (481).

3. A rainwater infiltration and retention 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. A rainwater infiltration and retention 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 mounted inside the outer enclosure plate (1), the two ends of the partition plate (6) are inclined to a horizontal plane, and a water leakage port is provided at the center of the partition plate (6).

5. The rainwater infiltration and retention urban road greening structure according to claim 2 is characterized by: A limiting ring (71) is fixedly installed at a lower position on the inner wall of the dripping pipe (481), and strip holes are opened at equal intervals inside the limiting ring. A T-shaped rod (72) is inserted in the center of the limiting ring (71), and a return spring (73) is installed between the T-shaped rod (72) and the limiting ring (71). A sealing protrusion (74) is arranged on the outer wall of the T-shaped rod (72) and below the limiting ring (71). The bottom of the T-shaped rod (72) is exposed to the bottom of the dripping pipe (481), and a circular groove is opened 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 horizontal positions, a light-transmitting block (77) is welded at the bottom end surface of the T-shaped rod (72), an evaporation groove (78) is provided inside the light-transmitting block (77), the notch of the evaporation groove (78) is located directly below the drain hole (411), the outer wall of the water outlet pipe (462) is connected with a transverse pipe (463), one end of the transverse pipe (463) passes through the storage tank (45), and the end of the transverse pipe (463) is located between the storage tank (45) and the outer shell (41).

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

7. The rainwater infiltration and retention urban road greening structure according to claim 1 is characterized by: Overflow holes (37) are symmetrically provided on both sides of the water storage tank (3).

8. The rainwater infiltration and retention urban road greening structure according to claim 5 is characterized by: 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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