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CN-121986701-A - Rainwater collecting and automatic watering integrated device for greening irrigation

CN121986701ACN 121986701 ACN121986701 ACN 121986701ACN-121986701-A

Abstract

The invention relates to the technical field of greening irrigation and discloses a rainwater collection and automatic irrigation integrated device for greening irrigation, which comprises a tank body and a water inlet pipe, wherein the tank body and the water inlet pipe are buried underground, a water filtering disc assembly capable of vertically reciprocating is arranged in the tank body and divides the inner cavity of the tank body into an upper cavity and a lower cavity, a pressure piston pump unit is arranged in the lower cavity, the pressure chamber is communicated with the lower cavity through a water suction pipe provided with a first one-way valve and supplies water to an external drip irrigation pipeline through a water pressing pipe provided with a second one-way valve, an air cylinder and a pressure storage tank are arranged at the upper part of the tank body, the air cylinder is in transmission connection with the water filtering disc assembly and a pump piston, an adjustable throttle valve is arranged in an air discharge passage to control speed and release air, so that the water filtering disc assembly slowly moves downwards under the action of gravity and realizes time delay, a circular fence is arranged on the water filtering disc assembly, floating impurities are transferred to the periphery of the water filtering disc assembly through overflow, and a discharge port is communicated with a discharge channel in alignment to concentrate deslagging when the water filtering disc assembly moves up to a preset deslagging position.

Inventors

  • LI QIUYAN
  • Wen Zhenyao
  • Tan guilin
  • ZHANG HAIYAN
  • LU JIANGFEI

Assignees

  • 广州市景晖园林景观工程有限公司

Dates

Publication Date
20260508
Application Date
20260128

Claims (10)

  1. 1. A rainwater is collected and automatic watering integrated device for afforestation irrigation, its characterized in that includes: a tank body (100) which is internally provided with a water storage cavity, and the surface of the tank body (100) is provided with a water inlet pipe (101) communicated with the water storage cavity; The filter disc assembly (200) is arranged in the tank body (100) and can reciprocate vertically, the inner cavity of the tank body (100) is divided into an upper cavity and a lower cavity by the filter disc assembly (200), and a filter material accommodating structure for accommodating the particle filter material is arranged on the filter disc assembly (200); The piston pump unit of the pressure chamber (301) fixedly arranged in the lower cavity comprises the pressure chamber (301) and a pump piston (302) arranged in the pressure chamber (301), the pressure chamber (301) is communicated with a water suction pipe (303) and a water pressing pipe (304), a first one-way valve (305) used for limiting water flow entering the pressure chamber (301) from the lower cavity is arranged on the water suction pipe (303), a second one-way valve (306) used for limiting water flow flowing to the outside from the pressure chamber (301) is arranged on the water pressing pipe (304), and the water outlet end of the water pressing pipe (304) extends to the outside of the tank body (100); The pneumatic driving unit comprises a cylinder (401) fixed at the upper part of the tank body (100), wherein the telescopic end of the cylinder (401) is in transmission connection with the water filtering disc assembly (200) and the pump piston (302), the cylinder (401) is provided with an air inlet joint valve (402) for externally connecting an air source and a pressure storage tank (403) communicated with the cylinder (401), and an adjustable throttle valve (404) is arranged on an exhaust passage of the cylinder (401) so as to limit the exhaust flow and limit the downward moving speed of the water filtering disc assembly (200) in the air release stage, so that the pump piston (302) continuously presses out water in the pressure chamber (301) in the downward moving stage; The drainage channel (102) is arranged on the side wall of the tank body (100) and communicated with the upper cavity, the drainage channel (102) is matched with the preset position of the water filtering disc assembly (200) so as to drain impurity-containing water and/or impurities in the upper cavity under a preset deslagging working condition, and the reciprocating motion of the water filtering disc assembly (200) drives the piston pump unit of the pressure chamber (301) to complete a water absorption stroke and a water pressing stroke and simultaneously forms a deslagging working condition matched with the drainage channel (102).
  2. 2. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 1, wherein an annular fence (202) is arranged on the upper side of the water filtering disc assembly (200), a first sinking area is formed on the inner side of the annular fence (202), filtering holes are formed in the bottom of the first sinking area and filled with particle filtering materials to form a filtering material layer, a second sinking area is formed on the outer side of the annular fence (202), the second sinking area is used for accommodating impurity-containing water and floating impurities overflowing from the first sinking area, and an annular sealing piece in sliding fit with the inner wall of the tank body (100) is arranged on the periphery of the water filtering disc assembly (200).
  3. 3. The rainwater collection and automatic irrigation integrated device for greening irrigation according to claim 2, wherein the aperture of the filtering holes of the first sinking area is smaller than the minimum particle size of the granular filtering materials, or a supporting screen plate (206) is arranged at the bottom of the first sinking area to support the filtering materials layers, a discharge opening (203) communicated with the second sinking area is formed in the surface of the water filtering disc assembly (200), and when the water filtering disc assembly (200) moves up to a preset deslagging position, the second sinking area is communicated with the discharge channel (102) in an alignment mode through the discharge opening (203).
  4. 4. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 1, wherein the telescopic end of the air cylinder (401) is sleeved with a pre-tightening spring (405), two ends of the pre-tightening spring (405) respectively abut against the top wall of the tank body (100) and the water filtering disc assembly (200) to enable the water filtering disc assembly (200) to have a first upper limit position and a second upper limit position higher than the first upper limit position, the water filtering disc assembly (200) is driven to the first upper limit position by the air cylinder (401) under the first air supply pressure to execute drainage of the piston pump unit of the pressure chamber (301), and the water filtering disc assembly (200) overcomes the pre-tightening force of the pre-tightening spring (405) to reach the second upper limit position and is communicated with the drainage channel (102) under the second air supply pressure higher than the first air supply pressure to execute a slag discharging working condition.
  5. 5. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 1, wherein the air inlet joint valve (402), the pressure storage tank (403) and the adjustable throttle valve (404) are communicated with a rod cavity of the air cylinder (401), and a rodless cavity of the air cylinder (401) is communicated with the outside atmosphere.
  6. 6. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 5, wherein a cylindrical filter (103) is fixedly installed in the upper chamber, a water inlet pipe (101) is communicated with the inner cavity of the cylindrical filter (103), a push rod (204) is fixedly installed on the water filtering disc assembly (200) and is inserted into the inner cavity of the cylindrical filter (103) in a sliding mode, a mud discharging pipe (104) is fixedly installed on the upper opening of the cylindrical filter (103), the upper end of the mud discharging pipe (104) extends to the upper side of the tank body (100), and a blocking net disc (105) is arranged at the communication position of the mud discharging pipe (104) and the cylindrical filter (103).
  7. 7. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 6, wherein an annular air sleeve (500) is fixedly installed on the water filtering disc assembly (200), the annular air sleeve (500) is slidably sleeved on the outer surface of the cylinder type filter (103), a plurality of purging nozzles are arranged in the annular air sleeve (500), and each purging nozzle is communicated with the output end of the adjustable throttle valve (404) through a hose.
  8. 8. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 1, wherein an overhaul feeding port (106) is fixedly arranged at the top of the tank body (100), an identification rod (205) is fixedly arranged on the water filtering disc assembly (200), and the top end of the identification rod (205) extends into the overhaul feeding port (106).
  9. 9. The integrated rainwater collection and automatic irrigation device for greening irrigation according to claim 1, wherein a drain pipe (107) is arranged at the bottom of the tank body (100) and is communicated with the lowest point of the lower chamber, and the upper end of the drain pipe (107) extends to the top of the tank body (100) and is provided with a suction interface.
  10. 10. An integrated rainwater collection and automatic irrigation device for greening irrigation according to any one of claims 1-9, wherein the device comprises a plurality of tanks (100), the air inlet ends of cylinders (401) of the tanks (100) are communicated in parallel through a main air supply pipe (600), and the main air supply pipe (600) is provided with a main valve and/or a branch check piece.

Description

Rainwater collecting and automatic watering integrated device for greening irrigation Technical Field The invention relates to the technical field of greening irrigation, in particular to a rainwater collection and automatic irrigation integrated device for greening irrigation. Background The greening irrigation system generally needs stable and continuous water supply to meet plant growth requirements, particularly in a high-temperature drying period, if disposable high-flow irrigation is adopted, surface runoff and evaporation loss are easily increased, and moisture is difficult to fully absorb by plants in a short time. Meanwhile, the rainwater resource has seasonal and intermittent characteristics, and the real-time rainwater supply is often lacking in a sunny drying period, so that the rainwater is collected and stored and then used for greening drip irrigation, and the rainwater has high water saving value and application requirements. The existing rainwater recycling irrigation device is mainly composed of a rainwater collecting, storing, filtering, pumping/valve-controlled irrigation system. In order to realize the small flow and long-time water supply required by drip irrigation, common schemes generally require electric control components such as an electric water pump, an electromagnetic valve, a controller, a sensor and the like to operate cooperatively. However, in the scenes of green belts, road isolation belts and the like, most of equipment is buried underground or distributed, on-site power supply conditions are limited, wiring construction and operation and maintenance costs are high, long-term operation reliability of an electric control element in a humid environment is easily affected, and the problems of difficult maintenance and high failure rate exist. On the other hand, the rainwater often contains sediment, fallen leaf fragments and suspended impurities, if insufficient filtration or blockage of a filter/filter material layer occurs, drip irrigation pipelines and drippers are easily caused to be blocked, so that uneven irrigation and even failure are caused. The existing filtering structure adopts a filter screen, a filter cylinder or a sand filter and other modes, but under the condition of intermittent rainwater supply, sediment trapped at the inner side of the filter tends to be dried or semi-dried easily during the period of water cut-off or low water level, is easy to agglomerate and solidify, and is difficult to clean later, and meanwhile, impurities in the filter material layer stay for a long time and solidify under the drying condition, so that the pores of the filter material are blocked, and the filtering efficiency is reduced. In the prior art, additional power or manual operation is needed for back flushing of the filter, mud and sewage discharge, automatic cooperation with an irrigation process is difficult, and maintenance is more inconvenient under underground burying conditions. Furthermore, in a patch greening irrigation scenario, multiple collection tanks or multiple irrigation nodes are typically required to work in concert. The existing system has high overall construction cost and complex management if adopting independent energy supply and maintenance one by one equipment, and further increases engineering complexity and fault risk if adopting centralized water supply and centralized control and needing more perfect electric control and pipe network systems. Therefore, there is a need for a rainwater collection and automatic irrigation integrated device that can adapt to intermittent rainwater supply and sunny irrigation conditions, and still can achieve delayed low-flow output required by drip irrigation under the conditions of power shortage or inconvenient power distribution, so as to reduce the dependence on an electric control pump valve system and improve the adaptability of on-site deployment. Disclosure of Invention The invention aims to solve the problem that a rainwater collecting and irrigating system is difficult to realize continuous and controllable small-flow water supply required by drip irrigation in a greening irrigation scene with electricity deficiency or inconvenient electricity distribution, and provides a rainwater collecting and automatic irrigating integrated device for greening irrigation. In order to achieve the purpose, the invention adopts the following technical scheme that the rainwater collection and automatic irrigation integrated device for greening irrigation comprises: a water storage cavity is formed in the tank body, and a water inlet pipe communicated with the water storage cavity is arranged on the surface of the tank body; the filter disc assembly is arranged in the tank body and can vertically reciprocate up and down, the inner cavity of the tank body is divided into an upper cavity and a lower cavity, the upper cavity is positioned on the upper cavity, the lower cavity is positioned below the upper cavity, and a filt