An intelligent irrigation device and method for collecting and reusing urban rainwater

Abstract

The present invention discloses an intelligent irrigation device and method for collecting and reusing rainwater in cities, comprising: a housing; an annular member, one end of which is hinged to the top of the housing, a filter screen disposed within the annular member; a pump body, the input end of which is connected to the housing via a pipeline, and the output end of which is connected to a liquid drive mechanism via an input pipeline, the liquid drive mechanism being connected to an irrigation nozzle; a cleaning brush plate disposed on the filter screen and in transmission connection with the liquid drive mechanism, driven by the liquid drive mechanism to rotate and clean the filter screen; and a tilting and knocking mechanism, driven by the liquid drive mechanism to tilt and vibrate the filter screen. During irrigation, the device utilizes water pressure to cause the liquid drive mechanism to drive the cleaning brush plate to clean the filter screen, while the tilting and knocking mechanism causes the filter screen to tilt and vibrate, thereby better separating debris particles from the filter screen, preventing the filter screen from interfering with rainwater ingress, and eliminating the need for manual periodic replacement. The device is easy to use, reducing operating costs and labor intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of rainwater collection and irrigation, and in particular to an intelligent irrigation device for collecting and reusing urban rainwater and a method thereof. Background Art

[0002] At present, in order to save water resources, green plants in the irrigation area are regularly irrigated through irrigation devices with the function of collecting rainwater.

[0003] Publication No. CN114158461B proposes an intelligent rainwater collection and irrigation device, which includes a rainwater collection mechanism and an irrigation mechanism. The rainwater collection mechanism includes a water tank; a motor-driven tank cover is provided on the top of the water tank; an air humidity sensor is provided on the top of the tank cover, and the air humidity sensor is connected to a first controller; a photoelectric switch is provided on the top of the side wall of the water tank; the photoelectric switch is connected to the first controller and the motor respectively; the irrigation mechanism includes a valve; a water outlet is provided on the side wall of the water tank, and the water outlet is connected to the irrigation water pipe through the valve; a water level sensor is provided at the water outlet; a soil moisture sensor is provided on one side of the valve; the water level sensor, the soil moisture sensor, and the valve are all connected to a second controller; a filter is provided inside the water tank, and the filter is detachably connected to the inner wall of the water tank. Although the above-mentioned irrigation device can collect rainwater and use it for irrigation, it still has the following defects during use:

[0004] 1) The above-mentioned irrigation device filters rainwater through a filter screen. However, after long-term use, debris particles may remain on the filter screen, which may easily affect the entry of rainwater. The above-mentioned irrigation device requires regular replacement of the filter screen, which increases the cost of use and is more troublesome.

[0005] 2) The above-mentioned irrigation device discharges liquid from the irrigation pipe during irrigation, resulting in a small irrigation range and a single irrigation angle, which makes it impossible to evenly irrigate the irrigation area.

[0006] To this end, we propose an intelligent irrigation device and method for urban rainwater collection and reuse. Summary of the Invention

[0007] The object of the present invention is to provide an intelligent irrigation device and method for collecting and reusing urban rainwater, so as to solve the problem proposed in the above background technology that the existing irrigation device filters rainwater through a filter screen, but after long-term use, foreign particles will remain on the filter screen, which easily affects the entry of rainwater. The filter screen must be replaced regularly, which increases the cost of use and is more troublesome.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An intelligent irrigation device for collecting and reusing urban rainwater, comprising:

[0010] shell;

[0011] An annular member, one end of which is hinged to the top of the housing, wherein a filter screen is provided in the annular member;

[0012] A pump body, the input end of which is connected to the housing through a pipeline, and the output end of which is connected to a liquid drive mechanism through an input pipeline, wherein the liquid drive mechanism is connected to an irrigation nozzle;

[0013] A cleaning brush plate is provided on the filter screen and is in transmission connection with the liquid driving mechanism, and is driven by the liquid driving mechanism to rotate and clean the filter screen; and

[0014] The tilting and knocking mechanism is embedded in one side of the shell and is in transmission connection with the liquid driving mechanism. The liquid driving mechanism drives the filter screen to tilt and vibrate at the same time.

[0015] A further improvement is that the liquid driving mechanism includes:

[0016] A guide seat, the water inlet end of which is connected to the input pipeline, and the water outlet end of which is connected to a liquid guide cylinder through a pipeline, wherein the liquid guide cylinder is provided on the outer wall of the protective shell, and the protective shell is fixed to the outer wall of the outer shell;

[0017] The impeller is rotatably arranged in the guide seat and is driven to rotate by water entering the guide seat. The impeller is arranged at one end of the transmission rod. The other end of the transmission rod movably penetrates the protective shell and the outer shell and is transmission-connected to the rotating rod. The bottom end of the rotating rod is rotatably connected to the bottom wall of the outer shell. The top end of the rotating rod is connected to a telescopic rod through a universal coupling. The telescopic rod is rotatably inserted in the center of the filter screen and is fixedly connected to the cleaning brush plate; and

[0018] The piston is movably arranged in the liquid guiding cylinder and is driven to move by the water entering the liquid guiding cylinder. The piston is connected to the bottom wall of the liquid guiding cylinder through an elastic member 1. A liquid inlet pipe connected to the irrigation nozzle is rotatably provided on the piston. The top end of the liquid inlet pipe movably passes through the top of the liquid guiding cylinder and extends to the top of the liquid guiding cylinder. A water inlet connected to the liquid inlet pipe is penetrated on the piston, and a solenoid valve is provided in the water inlet.

[0019] A further improvement is that the tilt striking mechanism includes:

[0020] The inner shell is embedded in one side of the outer shell and communicates with the inner cavity of the protective shell. The inner wall of the inner shell is slidably provided with a movable block. The top of the movable block is hinged with a slider, and the slider is slidably connected with the sliding groove at the bottom of the ring member.

[0021] A connecting frame, one end of which is connected to the movable block, and the other end of which is connected to a connecting seat, wherein the connecting seat is rotatably mounted on a fixed seat, and the fixed seat is fixedly sleeved on the outer wall of the liquid inlet pipe and located above the liquid guide cylinder. When the liquid inlet pipe is upward, the connecting frame drives the movable block to drive the filter screen to tilt;

[0022] A linkage frame is vertically inserted into the connecting frame, one end of the linkage frame is provided with a striking ball for contacting the bottom of the ring member, and the other end thereof is embedded with a ball; and

[0023] The second transmission rod is rotatably disposed in the protective shell, one end of the second transmission rod is in transmission connection with the first transmission rod, and a rotating disk is fixedly provided on the outer wall of the second transmission rod and located below the connecting frame, and an arc-shaped protrusion is provided at the bottom of the rotating disk;

[0024] When the connecting frame drives the movable block upward to a preset position, it also drives the linkage frame upward so that the ball contacts the bottom of the rotating disk. The rotating disk is driven by the second transmission rod to rotate through the arc-shaped protrusion to push the ball so that the linkage frame drives the knocking ball to separate from the ring part. The linkage frame is provided with a reset spring that drives the linkage frame to drive the knocking ball to return to its original position when the arc-shaped protrusion is separated from the ball.

[0025] A further improvement is that the outer wall of the protective shell is provided with a bearing seat, the bearing seat is movably sleeved on the outer wall of the liquid inlet pipe, the bottom of the bearing seat is rotatably provided with a driving gear, the bottom of the driving gear is embedded with a magnetic ring, the top of the fixed seat is provided with an electromagnetic ring that is energized to attract the magnetic ring, one side of the driving gear is meshed with a rack, one end of the rack extends into the protective shell, the rack is slidably connected to the inner wall of the protective shell, and a second elastic member is provided at the connection between the rack and the protective shell, the rack is also meshed with a toothless gear, the toothless gear is fixedly sleeved on the second outer wall of the transmission rod and is located in the protective shell, the inner wall of the liquid guide cylinder is provided with a detection sensor, and the detection sensor is electrically connected to the control mechanism;

[0026] The detection sensor contacts the piston when the piston moves upward to a preset position, and the magnetic ring contacts the electromagnetic ring. The detection sensor sends a signal to enable the control mechanism to control the electromagnetic ring and the electromagnetic valve to open.

[0027] A further improvement is that the irrigation nozzle is arranged on the top of the side wall of the liquid inlet pipe, and a protective plate is attached to one side of the irrigation nozzle, the protective plate is fixed to the outer wall of the liquid guide tube, and the protective plate closes the water outlet end of the irrigation nozzle when the piston does not move upward;

[0028] An elastic reset piece is also provided at the connection between the liquid inlet pipe and the piston.

[0029] A further improvement is that a flow sensor electrically connected to the control mechanism is provided on the input pipeline, and the flow sensor is used to detect the water flow in the input pipeline. When the water flow is lower than a threshold, the control mechanism controls the electromagnetic ring to close.

[0030] A further improvement is that a cover is attached to the top of the annular member, one end of the bottom of the cover is connected to the output end of the electric telescopic rotating device, the electric telescopic rotating device is embedded in the annular member, and a recess for accommodating a cleaning brush plate is provided at the bottom of the cover. The cover is also provided with a rain sensor electrically connected to the control mechanism. When the rain sensor detects rain, the control mechanism controls the electric telescopic rotating device to drive the cover to open. When no rain is detected, the control mechanism controls the electric telescopic rotating device to drive the cover to close the top of the annular member.

[0031] A further improvement is that a soil moisture detection sensor electrically connected to the control mechanism is provided on the side wall of the housing, and a probe of the soil moisture detection sensor is set in the soil of the area to be irrigated, and is used to control the control mechanism to control the pump body to open when it detects that the soil moisture of the area to be irrigated is lower than a preset threshold;

[0032] A water supply pipe connected to an external water source is also provided on one side of the shell. A valve electrically connected to the control mechanism is provided in the water supply pipe. A water level sensor electrically connected to the control mechanism is provided in the shell. When the water level sensor detects that the water level in the shell is lower than a threshold, the control mechanism controls the valve to open.

[0033] A further improvement is that the control mechanism includes a protective shell provided on the outer wall of the housing, and a wireless communication module connected to an external control terminal and a controller are provided in the housing;

[0034] A photovoltaic component is provided on the cover.

[0035] An intelligent irrigation method for collecting and reusing urban rainwater, using the above-mentioned irrigation device, comprises the following steps:

[0036] S1: Rainwater enters the housing after passing through the filter. When irrigation is needed, the pump body is turned on to allow the rainwater in the housing to enter the liquid drive mechanism through the input pipe, and then irrigate the area to be irrigated through the irrigation nozzle;

[0037] S2: When rainwater flows in the liquid drive mechanism, it drives the cleaning brush to clean the filter screen, and at the same time drives the filter screen to tilt and vibrate to remove debris particles remaining on the filter screen.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1) During irrigation, the device uses water flow pressure to drive the liquid drive mechanism to drive the cleaning brush plate to clean the filter screen. At the same time, the tilting and knocking mechanism drives the filter screen to tilt and vibrate, so that the debris particles on the filter screen are better separated from the filter screen, preventing the filter screen from affecting the entry of rainwater. At the same time, there is no need for manual regular replacement, which is easy to use and reduces the cost and labor intensity.

[0040] 2) When the piston drives the liquid inlet pipe upward to a preset position, the electromagnetic ring attracts the magnetic ring. Then, when the transmission rod 2 rotates, the toothless gear, the rack, and the elastic member 2 cause the liquid inlet pipe to reciprocate within a certain range, continuously changing the irrigation angle, increasing the irrigation range, ensuring irrigation uniformity in the irrigated area, and improving the irrigation effect.

[0041] 3) When not irrigating, the present invention can close the annular member through the cover, which not only protects the filter screen but also prevents the evaporation and loss of liquid inside the shell. At the same time, the water outlet of the irrigation nozzle can be closed by a protective plate to prevent external dust particles from entering and causing clogging of the irrigation nozzle, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic structural diagram of the irrigation device of the present invention;

[0043] Figure 2 For the present invention Figure 1 Another perspective structural diagram;

[0044] Figure 3 This is a cross-sectional view of the irrigation device structure of the present invention;

[0045] Figure 4 For the present invention Figure 3 Another perspective structural cross-sectional view;

[0046] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure A;

[0047] Figure 6 Schematic diagram of the liquid drive mechanism structure of the present invention.

[0048] In the figure: 1. Outer shell; 2. Ring member; 3. Filter screen; 4. Rotating rod; 5. Universal joint; 6. Cleaning brush plate; 7. Pump body; 8. Inlet pipe; 9. Guide seat; 10. Impeller; 11. Transmission rod 1; 12. Liquid guide cylinder; 13. Liquid inlet pipe; 14. Piston; 15. Solenoid valve; 16. Elastic member 1; 17. Detection sensor; 18. Irrigation nozzle; 19. Solenoid ring; 20. Connecting seat; 21. Protective shell; 22. Inner shell; 23. Connecting frame; 24. Movable block ; 25. Rain sensor; 26. Linkage frame; 27. Rotating disk; 28. Arc-shaped protrusion; 29. Transmission rod 2; 30. Toothless gear; 31. Rack; 32. Bearing seat; 33. Elastic part 2; 34. Protective plate; 35. Flow sensor; 36. Cover; 37. Electric telescopic rotating device; 38. Photovoltaic module; 39. Protective shell; 40. Wireless communication module; 41. Controller; 42. Water supply pipe; 43. Soil moisture detection sensor; 44. Water level sensor. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] See also Figures 1-4 , an urban rainwater collection and reuse intelligent irrigation device, comprising:

[0051] The outer shell 1 is cylindrical with a hollow top and is fixed to the area to be irrigated. The inner wall of the outer shell 1 can be provided with a heat-insulating coating to prevent water loss caused by excessive external temperature.

[0052] The ring part 2 is hinged at one end to the top of the housing 1. A filter screen 3 is provided inside the ring part 2. Figure 1 It can be seen that the left end of the bottom of the ring 2 is hinged to the top of the housing 1, and the top of the filter 3 is flush with the top of the ring 2, which is used to filter the incoming rainwater;

[0053] The pump body 7 has an input end connected to the housing 1 through a pipeline, and an output end connected to a liquid drive mechanism through an input pipeline 8, and the liquid drive mechanism is connected to an irrigation nozzle 18;

[0054] A cleaning brush plate 6 is provided on the filter screen 3 and is in transmission connection with the liquid driving mechanism. The liquid driving mechanism drives the cleaning filter screen 3 to rotate. The cleaning brush plate 6 is a cleaning brush; and

[0055] The tilting and knocking mechanism is embedded in one side of the outer shell 1 and is connected to the liquid driving mechanism. The liquid driving mechanism drives the filter 3 to tilt and vibrate at the same time. The tilting and knocking mechanism specifically drives the right end of the ring 2 upward, so that the ring 2 is tilted with the left lower and the right higher. The vibration of the filter 3 can facilitate the removal of impurities cleaned by the cleaning brush plate 6 from the filter 3.

[0056] Preferably, the liquid driving mechanism of this embodiment includes:

[0057] The guide seat 9 has a water inlet end connected to the input pipe 8, and a water outlet end connected to the liquid guide cylinder 12 through a pipe. The liquid guide cylinder 12 is provided on the outer wall of the protective shell 21. The protective shell 21 plays a role in protecting the internal structure. The protective shell 21 is fixed to the outer wall of the outer shell 1;

[0058] The impeller 10 is rotatably arranged in the guide seat 9 and is driven to rotate by the water entering the guide seat 9. For example, the impeller 10 is driven to rotate clockwise. The impeller 10 is arranged at one end of a transmission rod 11. The other end of the transmission rod 11 movably penetrates the protective shell 21 and the shell 1 and is driven and connected to the rotating rod 4. The transmission rod 11 and the rotating rod 4 are connected by two sets of meshing bevel gears. The bottom end of the rotating rod 4 is rotatably connected to the bottom wall of the shell 1 through a bearing. The top of the rotating rod 4 is connected to a telescopic rod through a universal coupling 5. The telescopic rod is rotatably inserted in the center of the filter screen 3 and is fixedly connected to the cleaning brush plate 6. Specifically, the fixed section of the telescopic rod is rotatably connected to the center of the filter screen 3 through a bearing, and its movable section is connected to the universal coupling 5. Through the telescopic rod and the universal coupling 5, the filter screen 3 can be driven to tilt by the tilting knocking mechanism. At the same time, it is ensured that when the impeller 10 rotates, the cleaning brush plate 6 is driven by the transmission rod 11, the rotating rod 4, the telescopic rod and the universal coupling 5 to rotate and rub the filter screen 3; and,

[0059] The piston 14 is movably arranged in the liquid guiding cylinder 12 and is driven to move by the water entering the liquid guiding cylinder 12. The outer diameter of the piston 14 is adapted to the inner diameter of the liquid guiding cylinder 12. The piston 14 is connected to the bottom wall of the liquid guiding cylinder 12 through an elastic member 16. The elastic member 16 is, for example, a spring, which is used to drive the piston 14 to reset downward when irrigation is stopped. The piston 14 is provided with a liquid inlet pipe 13 connected to the irrigation nozzle 18 through a bearing rotation. The top end of the liquid inlet pipe 13 movably passes through the top of the liquid guiding cylinder 12 and extends to the top of the liquid guiding cylinder 12. A water inlet connected to the liquid inlet pipe 13 is opened on the piston 14, and a solenoid valve 15 is provided in the water inlet, which is used to allow water to pass through the water inlet and then enter the liquid inlet pipe 13, and finally be sprayed out from the irrigation nozzle 18 for irrigation.

[0060] See also Figure 5 Preferably, the tilt striking mechanism of this embodiment includes:

[0061] The inner shell 22 is embedded in one side of the outer shell 1 and communicates with the inner cavity of the protective shell 21. A movable block 24 is slidably provided on the inner wall of the inner shell 22. A slider is hinged on the top of the movable block 24, and the slider is slidably connected with the slide groove at the bottom of the ring member 2. The slider and the slide groove are respectively T-shaped slider and T-shaped slide groove. When the movable block 24 moves upward, the slider moves in the slide groove, thereby tilting the ring member 2.

[0062] The connecting frame 23 has one end connected to the movable block 24 and the other end connected to the connecting seat 20. The connecting seat 20 is rotatably mounted on the fixed seat through a bearing. The fixed seat is fixedly sleeved on the outer wall of the liquid inlet pipe 13 and located above the liquid guide cylinder 12. When the liquid inlet pipe 13 is upward, the connecting frame 23 drives the movable block 24 to drive the filter 3 to tilt.

[0063] A linkage frame 26 is vertically inserted into the connecting frame 23. One end of the linkage frame 26 is provided with a striking ball for contacting the bottom of the ring member 2, and the other end thereof is embedded with a ball; and

[0064] Transmission rod 29 is rotatably disposed in protective shell 21. The top end of transmission rod 29 is rotatably connected to the inner wall of the top of protective shell 21. One end of transmission rod 29 is transmission-connected to transmission rod 11. Transmission rod 29 and transmission rod 11 are transmission-connected via two sets of meshing bevel gear sets. A rotating disk 27 is fixedly sleeved on the outer wall of transmission rod 29 and located below connecting frame 23. An arc-shaped protrusion 28 is provided at the bottom of rotating disk 27.

[0065] When the connecting frame 23 drives the movable block 24 upward to the preset position, it also drives the linkage frame 26 upward so that the ball contacts the bottom of the rotating disk 27. The rotating disk 27 is driven by the transmission rod 29 to rotate through the arc-shaped protrusion 28 to push the ball so that the linkage frame 26 drives the knocking ball to separate from the ring member 2. A reset spring is provided on the linkage frame 26, which drives the linkage frame 26 to reset the knocking ball when the arc-shaped protrusion 28 separates from the ball. One end of the reset spring is connected to the outer wall of the linkage frame 26, and the other end is connected to the connecting frame 23.

[0066] During irrigation, the pump body 7 inputs the water in the housing 1 into the guide seat 9 to rotate the impeller 10. When the impeller 10 rotates, the rotating rod 4 and the transmission rod 2 29 are driven by the transmission rod 1 11. When the rotating rod 4 rotates, the cleaning brush plate 6 is driven to rotate the cleaning filter 3 through the universal coupling 5 and the telescopic rod. After passing through the guide seat 9, the water enters the liquid inlet pipe 13, causing the piston 14 to drive the liquid inlet pipe 13 to move upward. When the liquid inlet pipe 13 moves upward, it drives the movable block 24 to move upward through the fixed seat, the connecting seat 20 and the connecting frame 23. The movable block 2 4 causes the annular member 2 to tilt. When the connecting frame 23 moves upward, the linkage frame 26 is simultaneously driven upward, causing the ball bearing to contact the rotating disk 27. As the transmission rod 29 rotates, the rotating disk 27 is driven to cause the arc-shaped protrusion 28 to intermittently push the linkage frame 26 to move. The striking ball strikes the annular member 2, causing the annular member 2 to vibrate, thereby allowing impurities and other particles on the cleaning filter 3 to separate from the filter 3. By opening the solenoid valve 15, water can enter the liquid inlet pipe 13 through the water inlet and then be sprayed out from the irrigation nozzle 18 to irrigate the area to be irrigated.

[0067] See also Figure 6 As a preference, the outer wall of the protective shell 21 of this embodiment is provided with a bearing seat 32, and the bearing seat 32 is movably sleeved on the outer wall of the liquid inlet pipe 13 without affecting the up and down movement of the liquid inlet pipe 13. The bottom of the bearing seat 32 is provided with a driving gear through a bearing rotation, and the bottom of the driving gear is embedded with a magnetic ring, and the top of the fixed seat is provided with an electromagnetic ring 19 that is energized to attract the magnetic ring. A rack 31 is engaged with one side of the driving gear, and one end of the rack 31 extends into the protective shell 21. The rack 31 is slidably connected to the inner wall of the protective shell 21, and an elastic member 33 is provided at the connection between the rack 31 and the protective shell 21. The rack 31 is also engaged with a toothless gear 30. The second elastic member 33, such as a spring, is used to drive the rack 31 to move and reset when the tooth segment of the toothless gear 30 is separated from the rack 31. When the electromagnetic ring 19 is not attracted to the magnetic ring, the toothless gear 30 rotates to drive the rack 31, and the rack 31 drives the driving gear. The driving gear does not drive the liquid inlet pipe 13 to rotate. The toothless gear 30 is fixedly mounted on the outer wall of the second transmission rod 29 and is located in the protective shell 21. The inner wall of the liquid guide tube 12 is provided with a detection sensor 17, which is electrically connected to the control mechanism. The detection sensor 17 is, for example, a pressure sensor, such as the pressure sensor model PSD-F1, but is certainly not limited to this type;

[0068] When the piston 14 moves upward to a preset position, the detection sensor 17 contacts the piston 14 and the magnetic ring contacts the electromagnetic ring 19. The detection sensor 17 sends a signal to the control mechanism to control the electromagnetic ring 19 and the electromagnetic valve 15 to open.

[0069] In order to prevent the piston 14 from moving downward when the solenoid valve 15 is opened, when the piston 14 moves upward to the preset position, the electromagnetic ring 19 opens the attraction magnetic ring. At this time, the positions of the piston 14 and the liquid inlet pipe 13 are fixed, and then the solenoid valve 15 is opened, allowing water to enter the liquid inlet pipe 13 through the water inlet without causing the piston 14 and the liquid inlet pipe 13 to move downward. At the same time, the toothed gear 30 rotates to drive the rack 31, and the rack 31 drives the driving gear. The driving gear will drive the fixed seat to rotate relative to the connecting seat 20, thereby causing the liquid inlet pipe 13 to drive the irrigation sprinkler 18 to rotate back and forth within a certain range, thereby changing the irrigation range of the irrigation sprinkler 18.

[0070] Preferably, the irrigation nozzle 18 of this embodiment is disposed on the top of the side wall of the liquid inlet pipe 13. A protective plate 34 is attached to one side of the irrigation nozzle 18. The protective plate 34 is fixed to the outer wall of the liquid guide tube 12. The protective plate 34 closes the water outlet end of the irrigation nozzle 18 when the piston 14 does not move upward.

[0071] An elastic reset member is further provided at the connection between the liquid inlet pipe 13 and the piston 14, and the elastic reset member is, for example, a torsion spring;

[0072] When not irrigating, the water outlet end of the irrigation nozzle 18 can be closed by the protective plate 34 to prevent external dust particles from entering and causing clogging of the irrigation nozzle 18, thereby extending the service life of the device. During irrigation, the irrigation nozzle 18 moves upward with the liquid inlet pipe 13 to a preset position, and the irrigation nozzle 18 is no longer blocked by the protective plate 34 and can spray water for irrigation. Because the liquid inlet pipe 13 can rotate, in order to ensure that the irrigation nozzle 18 can be reset and stably blocked by the protective plate 34, when the irrigation is stopped and the electromagnetic ring 19 is closed, the elastic reset member drives the liquid inlet pipe 13 to rotate and reset, so that the irrigation nozzle 18 can be blocked by the protective plate 34 downward with the liquid inlet pipe 13.

[0073] Preferably, a flow sensor 35 electrically connected to the control mechanism is provided on the input pipeline 8 of this embodiment. The flow sensor 35 is used to detect the water flow rate flowing in the input pipeline 8. When the water flow rate is lower than the threshold value, the control mechanism controls the electromagnetic ring 19 to close. The flow sensor 35 is, for example, a flow sensor 35 of model SBS-HZ, but is certainly not limited to this model. When the pump body 7 is closed, the water flow rate flowing in the input pipeline 8 is lower than the threshold value, and then the electromagnetic ring 19 is closed. At this time, the piston 14 drives the liquid inlet pipe 13 to reset downward under the action of the elastic member 16. When the liquid inlet pipe 13 is reset downward, the elastic reset member drives the liquid inlet pipe 13 to rotate and reset.

[0074] Preferably, the top of the annular member 2 of this embodiment is fitted with a cover 36, and the inner wall of the cover 36 is also provided with a heat-insulating coating. One end of the bottom of the cover 36 is connected to the output end of the electric telescopic rotating device 37. The electric telescopic rotating device 37 is embedded in the annular member 2. The electric telescopic rotating device 37 includes an electric telescopic rod and a micro motor. A recess is provided at the bottom of the cover 36 to accommodate the cleaning brush plate 6. A rain sensor 25 electrically connected to the control mechanism is also provided on the cover 36. When the rain sensor 25 detects rain, the control mechanism controls the electric telescopic rotating device 37 to turn on the electric telescopic rod. The telescopic rotating device 37 drives the cover body 36 to open. When no rain is detected, the control mechanism controls the electric telescopic rotating device 37 to drive the cover body 36 to close the top of the ring member 2. The rain sensor 25 is a conventional device in this field and will not be described in detail here. Specifically, when the cover body 36 is opened, the electric telescopic rotating device 37 first drives the cover body 36 upward to a preset height, and then drives the cover body 36 to rotate to a preset angle; when the cover body 36 is closed, the electric telescopic rotating device 37 first rotates the cover body 36 to reset, and then drives the cover body 36 to move downward to reset.

[0075] Preferably, a soil moisture detection sensor 43 electrically connected to the control mechanism is provided on the side wall of the housing 1 of this embodiment. The probe of the soil moisture detection sensor 43 is set in the soil of the area to be irrigated, and is used to control the control mechanism to control the pump body 7 to open when it detects that the soil moisture of the area to be irrigated is lower than a preset threshold. The soil moisture detection sensor 43 is a conventional device in the field and will not be described in detail here. In this way, automatic irrigation of the area to be irrigated is facilitated;

[0076] One side of the shell 1 is also provided with a water supply pipe 42 connected to an external water source. The external water source is an external water supply equipment, etc. A valve electrically connected to the control mechanism is provided in the water supply pipe 42. A water level sensor 44 electrically connected to the control mechanism is provided in the shell 1. The water level sensor 44 is a conventional device in this field and will not be described in detail here. When the water level sensor 44 detects that the water level in the shell 1 is lower than the threshold, the control mechanism controls the valve to open. When the rainwater in the shell 1 is lower than the water level and cannot be irrigated, the valve can be opened to allow the external water source to supply water to the shell 1 for irrigation.

[0077] Preferably, the control mechanism of this embodiment includes a protective shell 39 provided on the outer wall of the housing 1, and a wireless communication module 40 connected to an external control terminal and a controller 41 are provided inside the housing 1. The controller 41 is used to control the electrical components in the device, and the wireless communication module 40 facilitates the external control terminal to remotely control the operation of the electrical components in the device;

[0078] A photovoltaic assembly 38 is provided on the cover 36. The photovoltaic assembly 38 is a photovoltaic panel and a battery, etc., which is used to provide power for the electrical components in the device.

[0079] An intelligent irrigation method for collecting and reusing urban rainwater, using the above-mentioned irrigation device, comprises the following steps:

[0080] S1: Rainwater enters the housing 1 after passing through the filter 3. When irrigation is needed, the pump body 7 is turned on to allow the rainwater in the housing 1 to enter the liquid drive mechanism through the input pipe 8 and then irrigate the area to be irrigated through the irrigation nozzle 18;

[0081] S2: When rainwater flows in the liquid driving mechanism, it drives the cleaning brush plate 6 to clean the filter screen 3, and at the same time drives the filter screen 3 to tilt and vibrate, so as to remove the foreign particles remaining on the filter screen 3.

[0082] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent irrigation device for collecting and reusing urban rainwater, characterized in that: include: Housing (1); An annular member (2) has one end hinged to the top of the housing (1), and a filter (3) is provided inside the annular member (2); A pump body (7), the input end of which is connected to the housing (1) through a pipeline, and the output end of which is connected to a liquid drive mechanism through an input pipeline (8), wherein the liquid drive mechanism is connected to an irrigation nozzle (18); A cleaning brush plate (6) is provided on the filter screen (3) and is in transmission connection with the liquid driving mechanism, and is driven by the liquid driving mechanism to rotate and clean the filter screen (3); and A tilting and knocking mechanism is embedded in one side of the housing (1) and is in transmission connection with the liquid driving mechanism, and the liquid driving mechanism drives the filter screen (3) to tilt and simultaneously drives the filter screen (3) to vibrate; The liquid driving mechanism comprises: a guide seat (9), a water inlet end of which is connected to an input pipeline (8), and a water outlet end of which is connected to a liquid guide cylinder (12) via a pipeline, wherein the liquid guide cylinder (12) is arranged on the outer wall of a protective shell (21), and the protective shell (21) is fixed to the outer wall of the outer shell (1); And, a piston (14) is movably arranged in the liquid guide cylinder (12) and is driven to move by water entering the liquid guide cylinder (12). The piston (14) is connected to the bottom wall of the liquid guide cylinder (12) through an elastic member (16). A liquid inlet pipe (13) connected to the irrigation nozzle (18) is rotatably provided on the piston (14). The top end of the liquid inlet pipe (13) movably passes through the top of the liquid guide cylinder (12) and extends to the top of the liquid guide cylinder (12). A water inlet connected to the liquid inlet pipe (13) is opened on the piston (14), and a solenoid valve (15) is provided in the water inlet; The tilt knocking mechanism comprises: an inner shell (22) embedded in one side of the outer shell (1) and communicating with the inner cavity of the protective shell (21); a movable block (24) is slidably provided on the inner wall of the inner shell (22); a slider is hingedly connected to the top of the movable block (24), and the slider is slidably connected to the slide groove at the bottom of the ring member (2); A connecting frame (23) is connected to the movable block (24) at one end and is connected to a connecting seat (20) at the other end. The connecting seat (20) is rotatably mounted on a fixed seat. The fixed seat is fixedly sleeved on the outer wall of the liquid inlet pipe (13) and is located above the liquid guide cylinder (12). When the liquid inlet pipe (13) is upward, the connecting frame (23) drives the movable block (24) to drive the filter screen (3) to tilt.

2. The irrigation device according to claim 1, characterized in that: The liquid drive mechanism further comprises: The impeller (10) is rotatably arranged in the guide seat (9) and is driven to rotate by water entering the guide seat (9). The impeller (10) is arranged at one end of a transmission rod (11). The other end of the transmission rod (11) movably penetrates the protective shell (21) and the outer shell (1) and is connected to the rotating rod (4). The bottom end of the rotating rod (4) is rotatably connected to the bottom wall of the outer shell (1). The top end of the rotating rod (4) is connected to a telescopic rod through a universal joint (5). The telescopic rod is rotatably inserted into the center of the filter screen (3) and is fixedly connected to the cleaning brush plate (6).

3. The irrigation device according to claim 2, characterized in that: The tilt knocking mechanism also includes: A linkage frame (26) is vertically inserted into the connecting frame (23), one end of the linkage frame (26) is provided with a striking ball for contacting the bottom of the ring member (2), and the other end thereof is embedded with a ball; and, The second transmission rod (29) is rotatably arranged in the protective shell (21), one end of the second transmission rod (29) is transmission-connected to the first transmission rod (11), and a rotating disk (27) is fixedly provided on the outer wall of the second transmission rod (29) and located below the connecting frame (23), and an arc-shaped protrusion (28) is provided at the bottom of the rotating disk (27); When the connecting frame (23) drives the movable block (24) upward to a preset position, the connecting frame (26) is simultaneously driven upward to make the ball contact the bottom of the rotating disk (27). The rotating disk (27) is driven by the second transmission rod (29) to rotate through the arc-shaped protrusion (28) to push the ball so that the connecting frame (26) drives the knocking ball to separate from the ring member (2). The connecting frame (26) is provided with a reset spring that drives the connecting frame (26) to drive the knocking ball to reset when the arc-shaped protrusion (28) separates from the ball.

4. The irrigation device according to claim 3, characterized in that: The outer wall of the protective shell (21) is provided with a bearing seat (32), the bearing seat (32) is movably sleeved on the outer wall of the liquid inlet pipe (13), the bottom of the bearing seat (32) is rotatably provided with a driving gear, the bottom of the driving gear is embedded with a magnetic ring, the top of the fixed seat is provided with an electromagnetic ring (19) for electrically adsorbing the magnetic ring, one side of the driving gear is meshed with a rack (31), one end of the rack (31) extends into the protective shell (21), the rack (31) is slidably connected to the inner wall of the protective shell (21), and an elastic member 2 (33) is provided at the connection between the rack (31) and the protective shell (21), the rack (31) is also meshed with a toothless gear (30), the toothless gear (30) is fixedly sleeved on the outer wall of the transmission rod 2 (29) and is located in the protective shell (21), the inner wall of the liquid guide cylinder (12) is provided with a detection sensor (17), and the detection sensor (17) is electrically connected to the control mechanism; The detection sensor (17) contacts the piston (14) when the piston (14) moves upward to a preset position, and the magnetic ring contacts the electromagnetic ring (19). The detection sensor (17) sends a signal to enable the control mechanism to control the electromagnetic ring (19) and the electromagnetic valve (15) to open.

5. The irrigation device according to claim 4, characterized in that: The irrigation nozzle (18) is arranged on the top of the side wall of the liquid inlet pipe (13), and a protective plate (34) is attached to one side of the irrigation nozzle (18). The protective plate (34) is fixed to the outer wall of the liquid guide cylinder (12), and the protective plate (34) closes the water outlet end of the irrigation nozzle (18) when the piston (14) does not move upward; An elastic reset piece is also provided at the connection between the liquid inlet pipe (13) and the piston (14).

6. The irrigation device according to claim 4, characterized in that: The input pipeline (8) is provided with a flow sensor (35) electrically connected to the control mechanism. The flow sensor (35) is used to detect the flow of water flowing in the input pipeline (8). When the water flow is lower than a threshold value, the control mechanism controls the electromagnetic ring (19) to close.

7. The irrigation device according to claim 6, characterized in that: The top of the annular member (2) is fitted with a cover (36), one end of the bottom of the cover (36) is connected to the output end of an electric telescopic rotating device (37), the electric telescopic rotating device (37) is embedded in the annular member (2), the bottom of the cover (36) is provided with a recess for accommodating a cleaning brush plate (6), and the cover (36) is also provided with a rain sensor (25) electrically connected to a control mechanism. When the rain sensor (25) detects rain, the control mechanism controls the electric telescopic rotating device (37) to drive the cover (36) to open, and when no rain is detected, the control mechanism controls the electric telescopic rotating device (37) to drive the cover (36) to close the top of the annular member (2).

8. The irrigation device according to claim 7, characterized in that: A soil moisture detection sensor (43) electrically connected to the control mechanism is provided on the side wall of the housing (1); a probe of the soil moisture detection sensor (43) is arranged in the soil of the area to be irrigated, and is used to enable the control mechanism to control the pump body (7) to open when detecting that the soil moisture of the area to be irrigated is lower than a preset threshold value; A water supply pipe (42) connected to an external water source is further provided on one side of the housing (1); a valve electrically connected to the control mechanism is provided in the water supply pipe (42); a water level sensor (44) electrically connected to the control mechanism is provided in the housing (1); and when the water level sensor (44) detects that the water level in the housing (1) is lower than a threshold value, the control mechanism controls the valve to open.

9. The irrigation device according to claim 8, characterized in that: The control mechanism includes a protective shell (39) provided on the outer wall of the housing (1), and a wireless communication module (40) connected to an external control terminal and a controller (41) are provided in the housing (1); A photovoltaic assembly (38) is provided on the cover (36).

10. An intelligent irrigation method for urban rainwater collection and reuse, utilizing the irrigation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Rainwater enters the housing (1) after passing through the filter (3). When irrigation is required, the pump body (7) is opened to allow the rainwater in the housing (1) to enter the liquid drive mechanism through the input pipe (8) and then irrigate the area to be irrigated through the irrigation nozzle (18); S2: When rainwater flows in the liquid driving mechanism, it drives the cleaning brush plate (6) to clean the filter screen (3), and at the same time drives the filter screen (3) to tilt and vibrate, thereby removing the debris particles remaining on the filter screen (3).

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