Water-saving irrigation system for building park green land landscape in sponge city

Abstract

The invention relates to the field of landscape irrigation, in particular to a sponge city construction park green land landscape water-saving irrigation system which comprises a water storage pond buried underground, a motor electrically connected to a control system is arranged in the water storage pond, a rotating shaft is coaxially arranged on an output shaft of the motor, and a mounting frame is arranged on the rotating shaft. A plurality of groups of ultraviolet germicidal lamps electrically connected to the control system are arranged on the mounting frame. Rainwater in the water storage pond is sterilized through the ultraviolet sterilization lamp, and the effect of improving the water quality of irrigation water is achieved.

Description

Technical Field

[0001] The present application relates to the field of landscape irrigation, and in particular to a water-saving irrigation system for park green landscaping in sponge city construction. Background Art

[0002] The park green space landscape water-saving irrigation system in sponge city construction is an efficient and environmentally friendly irrigation method. It combines the concept of sponge city and realizes the rational use and conservation of water resources.

[0003] The related art discloses a sponge city rainwater collection and recycling system, which includes a water storage tank buried underground for storing rainwater. The water storage tank is connected to an irrigation device for irrigating the landscape through a water pump.

[0004] Since the water tank is buried underground and before being used, rainwater may deteriorate due to being stored in the water tank for too long, causing bacteria growth and odor, etc., which is an obvious disadvantage. Summary of the invention

[0005] In order to improve the water quality of irrigation water, the present application provides a water-saving irrigation system for park green landscaping in sponge city construction.

[0006] The present application provides a sponge city construction park green land landscape water-saving irrigation system adopts the following technical solutions: A water-saving irrigation system for park green landscaping in sponge city construction comprises a water storage tank buried underground, a motor electrically connected to a control system is arranged in the water storage tank, a rotating shaft is coaxially arranged with an output shaft of the motor, a mounting frame is arranged on the rotating shaft, and a plurality of groups of ultraviolet sterilization lamps electrically connected to the control system are arranged on the mounting frame.

[0007] By adopting the above technical solution, the control system starts the motor regularly, and the output shaft of the motor drives the mounting frame to rotate, and multiple ultraviolet sterilization lamps rotate accordingly. Under the irradiation of ultraviolet rays, the rainwater in the water storage tank can be sterilized, thereby extending the shelf life of the rainwater.

[0008] Optionally, a receiving groove is vertically opened on the side wall of the water tank, a filter basket is placed in the receiving groove and the filter basket is filled with activated carbon, a bottom cavity is opened at the bottom of the water tank and a receiving plate is arranged in the bottom cavity and is close to the receiving groove, the bottom end of the receiving groove is connected to the bottom cavity, a carrying ring close to the vertical side wall and a driving member for driving the carrying ring to rise and fall are arranged in the water tank, a water-isolating membrane is arranged between the carrying ring and the inner bottom wall of the water tank, a return water component for sending rainwater in the receiving groove back to the water tank is arranged on the receiving plate; a height level meter electrically connected to the control system is arranged in the water tank.

[0009] By adopting the above technical solution, when the water tank is storing water, the height liquid level meter can detect the height of the liquid level in the water tank, and gradually increase the height of the bearing ring through the driving member. When the motor drives the mounting frame to rotate, the rainwater in the water tank forms a vortex, so that the top surface of the rainwater forms a funnel shape, and the rainwater at the highest point overflows from the bearing ring into the receiving tank. When it flows through the filter basket, the activated carbon achieves secondary sterilization and adsorption of odors for the rainwater, and then the rainwater flows back to the water tank under the action of the return water component.

[0010] Optionally, the top of the containing tank extends to the ground and a sealing plate is arranged at the opening, and a basket lifting line is tied to the filter basket, and the top of the basket lifting line is tied to a position close to the top of the containing tank.

[0011] By adopting the above technical solution, when workers perform regular maintenance on the landscape, they open the sealing plate and use the lifting line to lift the filter blue out of the holding tank to replace the failed activated carbon.

[0012] Optionally, the driving member includes a winding wheel rotatably mounted on a rotating shaft, a gear is coaxially arranged on the winding wheel, a friction ring is arranged between the winding wheel and the rotating shaft, a plurality of suspension lines wound around the winding wheel are fastened to the carrying ring, and an electric telescopic cylinder electrically connected to the control system is also arranged on the top of the water tank, and the piston rod of the electric telescopic cylinder is plug-fitted into the tooth groove of the gear.

[0013] By adopting the above technical solution, when the load ring needs to be lifted, the control system controls the piston rod of the electric telescopic cylinder to remain in a retracted state, at which time the motor drives the winding wheel to rotate through the rotating shaft, and the winding wheel winds and unwinds the hanging wire. When the height of the load ring needs to be maintained, the piston rod of the electric telescopic cylinder extends out and plugs into the slot of the gear to lock the winding wheel.

[0014] Optionally, the bottom end of the rotating shaft is connected to the accommodating plate, and a plurality of return water grooves extending to the top surface thereof and communicating with the accommodating groove are circumferentially opened on the circumferential outer wall of the accommodating plate, the return water assembly includes a water pressure plate which vertically slides in each return water assembly, a pressure ring which is pressed against the top surface of the water pressure plate is arranged on the top of the accommodating plate, a lifting groove is vertically opened on the side wall of the accommodating plate relative to the return water groove, a vertical guide rod is arranged in the lifting groove, the water pressure plate is slidably sleeved on the guide rod, the water pressure plate extends into the lifting groove and is supported between the water pressure plate and the bottom wall of the lifting groove by a first reset compression spring sleeved on the guide rod, a one-way valve is arranged on each water pressure plate, and the return water assembly also includes a water pressure part for pushing the water pressure plate to move downward.

[0015] By adopting the above technical solution, the output shaft of the motor drives the receiving plate to rotate in the bottom cavity through the rotating shaft. When the return water tank rotates to communicate with the receiving tank, the rainwater in the receiving tank flows into and fills the return water tank. When the return water tank rotates to stagger with the receiving tank, the water pressure part applies downward pressure to multiple water pressure plates at the same time, and the rainwater in the return water tank can only flow back to the water storage tank through the one-way valve, thereby realizing water return. When the water pressure part releases the downward pressure on the water pressure plate, the water pressure plate is reset upward under the action of the deformation force of the first reset compression spring.

[0016] Optionally, the water pressure part includes a lifting sleeve which is slidably and rotatably sleeved on a rotating shaft, and a limit frame rod is arranged on the lifting sleeve which vertically slides with the bottom of the water storage tank. A plurality of pressure arms are also arranged on the outer wall of the lifting sleeve, and one pressure arm corresponds to a water pressure plate. A horizontal groove, a reset groove and a spiral groove are opened on the inner wall of the lifting sleeve, and the horizontal groove is opened relative to the circumference of the lifting sleeve, one end of the horizontal groove is connected with the bottom end of the spiral groove, and the other end is connected with the bottom end of the reset groove, and the spiral groove is connected with the top end of the reset groove, and a protrusion which slides with the horizontal groove, the reset groove and the spiral groove is arranged on the outer wall of the rotating shaft, and a second reset compression spring is supported between the lifting sleeve and the accommodating disk.

[0017] By adopting the above technical solution, the output shaft of the motor drives the protrusion to rotate axially. When the protrusion rotates in the horizontal groove, the rainwater in the receiving groove is filled into the return groove. When the protrusion rotates inward, the resistance of the protrusion to the side wall of the spiral groove causes the lifting sleeve to slide downward while the rotating shaft rotates, thereby driving the pressure arm to press downward onto the corresponding water pressure plate. In this process, the lifting sleeve squeezes the second reset spring. When the protrusion moves to the connection point between the spiral groove and the reset groove, the deformation force of the second reset spring pushes the lifting sleeve upward to reset, and the protrusion slides to the bottom end of the reset groove and finally moves back to the horizontal groove.

[0018] Optionally, the bottom end of the pressing arm is hemispherical.

[0019] By adopting the above technical solution, the hemispherical shape reduces the contact area between the bottom end of the pressure arm and the water pressure plate, which is beneficial to improving the smoothness of the movement of the pressure arm relative to the water pressure plate.

[0020] Optionally, the receiving tray is coated with polytetrafluoroethylene.

[0021] By adopting the above technical solution, the friction coefficient of polytetrafluoroethylene is relatively small, which is beneficial to improving the smoothness of the rotation of the accommodating disk in the bottom cavity.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The control system starts the motor regularly, and the output shaft of the motor drives the mounting frame to rotate, and multiple ultraviolet germicidal lamps rotate accordingly. Under the irradiation of ultraviolet rays, the rainwater in the water storage tank can be sterilized, thereby extending the shelf life of the rainwater; 2. When the water tank is storing water, the height liquid level meter can detect the height of the liquid level in the water tank, and gradually increase the height of the bearing ring through the driving part. When the motor drives the mounting frame to rotate, the rainwater in the water tank forms a vortex, so that the top surface of the rainwater forms a funnel shape, and the rainwater at the highest point overflows from the bearing ring into the receiving tank. When it flows through the filter basket, the activated carbon sterilizes the rainwater for the second time and absorbs odors. After that, the rainwater flows back to the water tank under the action of the return water component; 3. The output shaft of the motor drives the receiving plate to rotate in the bottom cavity through the rotating shaft. When the return water tank rotates to communicate with the receiving tank, the rainwater in the receiving tank flows into and fills the return water tank. When the return water tank rotates to stagger with the receiving tank, the water pressure unit applies downward pressure to multiple water pressure plates at the same time. The rainwater in the return water tank can only flow back to the water storage tank through the one-way valve to achieve water return. When the water pressure unit releases the downward pressure on the water pressure plate, the water pressure plate is reset upward under the action of the deformation force of the first reset compression spring; 4. The output shaft of the motor drives the protrusion to rotate axially. When the protrusion rotates in the horizontal groove, the rainwater in the receiving groove is filled into the return groove. When the protrusion rotates inward, the resistance of the protrusion to the side wall of the spiral groove causes the lifting sleeve to slide downward while the shaft rotates, thereby driving the pressure arm to press downward onto the corresponding water pressure plate. During this process, the lifting sleeve squeezes the second reset spring. When the protrusion moves to the connection point between the spiral groove and the reset groove, the deformation force of the second reset spring pushes the lifting sleeve upward to reset, and the protrusion slides to the bottom of the reset groove and finally moves back to the horizontal groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the positional relationship between the ultraviolet germicidal lamp, the mounting bracket and the height liquid level meter in the embodiment of the present application.

[0024] Figure 2 It is a cross-sectional view of the positional relationship between the limiting frame rod, the lifting sleeve and the mounting plate in the embodiment of the present application.

[0025] Figure 3 yes Figure 2 Enlarged view of part B.

[0026] Figure 4 yes Figure 1 Enlarged view of part A.

[0027] Figure 5 It is a cross-sectional view of the positional relationship between the horizontal groove, the reset groove and the spiral groove in the embodiment of the present application.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. water storage tank; 101. containing tank; 102. bottom cavity; 2. motor; 3. rotating shaft; 4. mounting frame; 5. ultraviolet germicidal lamp; 6. filter blue; 7. activated carbon; 8. containing plate; 801. return water tank; 802. lifting tank; 9. bearing ring; 10. water-proof membrane; 11. sealing plate; 12. basket line; 13. winding wheel; 14. gear; 15. friction ring; 16. hanging line; 17. electric telescopic cylinder; 18. water pressure plate; 19. pressure ring; 20. guide rod; 21. first reset compression spring; 22. one-way valve; 23. lifting sleeve; 231. horizontal groove; 232. reset groove; 234. spiral groove; 24. limit frame rod; 25. pressure arm; 26. second reset compression spring; 27. height liquid level meter. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiment of the present application discloses a water-saving irrigation system for park green landscaping in sponge city construction.

[0031] Reference Figure 1 The sponge city construction park green landscaping water-saving irrigation system includes a water storage tank 1 buried underground, and a motor 2 electrically connected to the control system is bolted on the top wall of the water storage tank 1. The motor 2 adopts the forward and reverse servo motor in the prior art.

[0032] Reference Figure 1 and Figure 2 The output shaft of the motor 2 is coaxially connected to the rotating shaft 3 through a bearing, a mounting frame 4 is welded on the rotating shaft 3, and a plurality of ultraviolet germicidal lamps 5 electrically connected to the control system are bolted on the mounting frame 4.

[0033] The control system starts the motor 2 regularly, the output shaft of the motor 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives multiple groups of ultraviolet germicidal lamps 5 to rotate through the mounting frame 4. The ultraviolet germicidal lamps 5 emit ultraviolet rays to irradiate rainwater, thereby sterilizing the rainwater and improving the quality of the rainwater.

[0034] Reference Figure 1 Two vertical receiving grooves 101 are provided on the side wall of the water storage tank 1, and the two receiving grooves 101 are symmetrically distributed about the vertical center line of the water storage tank 1. The top of the receiving groove 101 extends to the ground and is covered with a sealing plate 11. A filter basket 6 is placed in the receiving groove 101 and the filter basket 6 is filled with activated carbon 7.

[0035] The filter basket 6 is tied with a basket lifting line 12, and the top of the basket lifting line 12 is tied to a position close to the top of the receiving tank 101. When the worker regularly maintains the landscape, he opens the cover 11 and lifts the filter basket 6 out of the receiving tank 101 through the basket lifting line 12, replaces the activated carbon 7, and puts it back into the receiving tank 101 and covers the cover 11.

[0036] Reference Figure 1 and Figure 2 A bottom cavity 102 with a circular cross-section is opened at the center of the bottom wall of the water storage tank 1. The bottom ends of the two receiving grooves 101 are connected to the bottom cavity 102. A receiving plate 8 is placed in the bottom cavity 102, which is tightly attached to and rotatably matched with the bottom cavity 102. The receiving plate 8 is bolted to the bottom end of the rotating shaft 3, and the receiving plate 8 is coated with polytetrafluoroethylene.

[0037] Reference Figure 1 A load ring 9 and a driving member for driving the load ring 9 to achieve lifting are arranged in the water tank 1. The load ring 9 is in close contact with the vertical inner wall of the water tank 1, and a ring-shaped water-blocking membrane 10 is bonded between the load ring 9 and the bottom wall of the water tank 1. A height level meter 27 electrically connected to the control system is bolted to the position between the bottom wall of the water tank 1 relative to the water-blocking membrane 10 and the mounting frame 4.

[0038] Reference Figure 1 , Figure 2 and Figure 3 The driving member includes a winding wheel 13 rotatably sleeved on the rotating shaft 3 , the winding wheel 13 is coaxially bolted with a gear 14 , and a friction ring 15 is arranged between the winding wheel 13 and the rotating shaft 3 .

[0039] A plurality of suspension wires 16 are tied to the load ring 9, and the plurality of suspension wires 16 are wound together on the winding wheel 13. An electric telescopic cylinder 17 electrically connected to the control system is also bolted to the top of the water tank 1, and the piston rod of the electric telescopic cylinder 17 is plugged into the tooth groove of the gear 14.

[0040] Reference Figure 1 , Figure 2 and Figure 3 When the water storage tank 1 is filled with water, the height liquid level meter 27 detects the liquid level of rainwater in real time, and starts the motor 2 and the electric telescopic cylinder 17 through the control system. The piston rod of the electric telescopic cylinder 17 retracts to release the plug-in fit with the tooth groove on the gear 14, and the rotating shaft 3 drives the winding wheel 13 to rotate through the friction ring 15, so as to realize the winding of the suspension line 16, and the load-bearing ring 9 rises accordingly, ensuring that the height of the load-bearing ring 9 is slightly higher than the rainwater surface in a calm state.

[0041] When the water tank 1 stops taking in water, the control system turns off the motor 2 and the electric telescopic cylinder 17, and the piston rod of the electric telescopic cylinder 17 extends and engages with the tooth groove of the gear 14, so that the load-bearing ring 9 maintains a corresponding height.

[0042] When the motor 2 drives the ultraviolet germicidal lamp 5 to rotate, the rainwater in the water storage tank 1 is forced to form a vortex, and the top surface of the rainwater forms a funnel shape. The rainwater close to the supporting ring 9 overflows from the supporting ring 9 into the containing tank 101, and then is sterilized and adsorbed by the activated carbon 7 in the containing tank 101 to remove odors.

[0043] Reference Figure 1 , Figure 2 and Figure 4 A water return assembly for returning rainwater in the receiving tank 101 to the water storage tank 1 is also arranged on the receiving tray 8. The water return assembly includes a water return part and a water pressure part.

[0044] Two return water grooves 801 extending to the top surface of the accommodating tray 8 and used to communicate with the accommodating groove 101 are provided on the circumferential outer wall. The return water portion includes a water pressure plate 18 that vertically slides in the two return water grooves 801, and a pressure ring 19 that is bolted to the top surface of the accommodating tray 8 and pressed against the top surface of the water pressure plate 18. The pressure ring 19 is used to prevent the water pressure plate 18 from detaching from the top of the return water groove 801.

[0045] Reference Figure 1 , Figure 2 and Figure 4 A lifting groove 802 is vertically opened on the side wall of the accommodating plate 8 relative to the return water groove 801, and a vertical guide rod 20 is integrally formed at the bottom end of the lifting groove 802. The water pressure plate 18 extends into the lifting groove 802 and is slidably sleeved on the guide rod 20. A first return compression spring 21 sleeved on the guide rod 20 is supported between the water pressure plate 18 and the bottom wall of the lifting groove 802, and a one-way valve 22 is also threadedly connected to each water pressure plate 18.

[0046] Reference Figure 1 , Figure 3 and Figure 4 The water pressure part includes a lifting sleeve 23 that is slidably and rotatably sleeved on the rotating shaft 3. A limit frame rod 24 that vertically slides with the bottom of the water storage tank 1 is bolted to the lifting sleeve 23. Two pressure arms 25 are welded on the outer wall of the lifting sleeve 23. One pressure arm 25 corresponds to one water pressure plate 18, and the bottom end of the pressure arm 25 is hemispherical.

[0047] Reference Figure 1 , Figure 3 and Figure 4 A horizontal groove 231, a reset groove 232 and a spiral groove 234 are formed on the inner wall of the lifting sleeve 23. The horizontal groove 231 is formed in a C shape relative to the axis of the lifting sleeve 23. One end of the horizontal groove 231 is connected to the bottom end of the spiral groove 234, and the other end is connected to the bottom end of the reset groove 232. The spiral groove 234 is connected to the top of the reset groove 232.

[0048] The reset groove 232 is not a straight vertical groove, but is spiral-shaped similar to the spiral groove 234 , but the spiral angle is smaller than that of the spiral groove 234 and the spiral directions of the two are opposite.

[0049] Reference Figure 1 , Figure 3 and Figure 4A protrusion (not shown in the figure) that slidably cooperates with the horizontal groove 231, the reset groove 232 and the spiral groove 234 is integrally formed on the outer wall of the rotating shaft 3, and a second reset compression spring 26 is supported between the lifting sleeve 23 and the accommodating plate 8.

[0050] Reference Figure 1 , Figure 3 and Figure 4 The rotating shaft 3 drives the accommodating plate 8 to rotate. When the return water groove 801 is connected to the accommodating groove 101, the rainwater in the accommodating groove 101 fills the return water groove 801, and the protrusion is located in the horizontal groove 231.

[0051] When the return water groove 801 is completely offset from the receiving groove 101, the protrusion moves from the horizontal groove 231 to the spiral groove 234, and the resistance of the protrusion to the side wall of the spiral groove 234 causes the lifting sleeve 23 to gradually descend and squeeze the second return compression spring 26, thereby driving the pressure arm 25 to move downward and pushing the water pressure plate 18 to move downward. The rainwater in the return water groove 801 can only flow back to the water storage tank 1 through the one-way valve 22.

[0052] Reference Figure 1 , Figure 3 and Figure 4 When the protrusion moves to the connecting point between the spiral groove 234 and the reset groove 232 , the deformation force of the second reset compression spring 26 pushes the lifting sleeve 23 upward to reset, and the protrusion moves from the bottom end of the reset groove 232 back to the horizontal groove 231 .

[0053] When the return water groove 801 is connected to the receiving groove 101 again, the rainwater in the receiving groove 101 replenishes the return water groove 801 again, and the first return compression spring 21 pushes the water pressure plate 18 upward to achieve return.

[0054] The above process is repeated in a cycle, and the motor 2 provides power, and the water return component returns the rainwater in the receiving tank 101 after adsorption and deodorization to the water storage tank 1.

[0055] The implementation principle of a sponge city construction park green land landscape water-saving irrigation system in the present application embodiment is: When water enters the water storage tank 1, the height liquid level meter 27 detects the liquid level of rainwater in real time, and starts the motor 2 and the electric telescopic cylinder 17 through the control system. The piston rod of the electric telescopic cylinder 17 retracts to release the plug-in fit with the tooth groove on the gear 14, and the rotating shaft 3 drives the winding wheel 13 to rotate through the friction ring 15, so as to realize the winding of the suspension line 16, and the load-bearing ring 9 rises accordingly to ensure that the height of the load-bearing ring 9 is slightly higher than the rainwater surface.

[0056] When the water tank 1 stops taking in water, the control system turns off the motor 2 and the electric telescopic cylinder 17 , and the piston rod of the electric telescopic cylinder 17 extends out and engages with the tooth groove of the gear 14 .

[0057] The control system starts the motor 2 regularly, and the output shaft of the motor 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the multiple groups of ultraviolet germicidal lamps 5 to rotate through the mounting frame 4. At the same time, the rainwater in the water storage tank 1 is forced to form a vortex, and the top surface of the rainwater forms a funnel shape. The rainwater close to the carrying ring 9 overflows from the carrying ring 9 into the receiving tank 101, and then the activated carbon 7 in the receiving tank 101 is sterilized and adsorbed to remove odors.

[0058] The rotating shaft 3 drives the receiving plate 8 to rotate. When the return water groove 801 is in communication with the receiving groove 101 , the rainwater in the receiving groove 101 fills up the return water groove 801 , and the protrusion is located in the horizontal groove 231 .

[0059] When the return water groove 801 is completely offset from the receiving groove 101, the protrusion moves from the horizontal groove 231 to the spiral groove 234, and the resistance of the protrusion to the side wall of the spiral groove 234 causes the lifting sleeve 23 to gradually descend and squeeze the second return compression spring 26, thereby driving the pressure arm 25 to move downward and pushing the water pressure plate 18 to move downward. The rainwater in the return water groove 801 can only flow back to the water storage tank 1 through the one-way valve 22.

[0060] When the protrusion moves to the connection point between the spiral groove 234 and the reset groove 232, the deformation force of the second reset compression spring 26 pushes the lifting sleeve 23 upward to reset, and the protrusion moves back from the bottom end of the reset groove 232 to the horizontal groove 231. When the return water groove 801 is connected with the receiving groove 101 again, the rainwater in the receiving groove 101 replenishes the return water groove 801 again, and the first reset compression spring 21 pushes the water pressure plate 18 upward to reset.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sponge city construction park green landscaping water-saving irrigation system, comprising a water storage tank (1) buried underground, characterized in that: A motor (2) electrically connected to a control system is arranged in the water storage tank (1); a rotating shaft (3) is coaxially arranged on the output shaft of the motor (2); a mounting frame (4) is arranged on the rotating shaft (3); and a plurality of groups of ultraviolet sterilization lamps (5) electrically connected to the control system are arranged on the mounting frame (4).

2. The sponge city construction park green landscaping water-saving irrigation system according to claim 1 is characterized by: The water storage tank (1) has a receiving groove (101) vertically formed on the side wall thereof, a filter basket (6) is placed in the receiving groove (101) and the filter basket (6) is filled with activated carbon (7), a bottom cavity (102) is formed at the bottom of the water storage tank (1) and a receiving plate (8) closely attached to the receiving groove (102) is arranged in the bottom cavity (102), the bottom end of the receiving groove (101) is connected to the bottom cavity (102), a bearing ring (9) closely attached to the vertical side wall thereof and a driving member for driving the bearing ring (9) to rise and fall are arranged in the water storage tank (1), a water-isolating membrane (10) is arranged between the bearing ring (9) and the inner bottom wall of the water storage tank (1), a water return assembly for sending rainwater in the receiving groove (101) back to the water storage tank (1) is arranged on the receiving plate (8), and a height level meter (27) electrically connected to a control system is arranged in the water storage tank (1).

3. The sponge city construction park green landscaping water-saving irrigation system according to claim 2 is characterized by: The top of the containing tank (101) extends to the ground and a sealing plate (11) is arranged at the opening; a basket lifting line (12) is tied to the filter basket (6), and the top of the basket lifting line (12) is tied to a position close to the top of the containing tank (101).

4. The sponge city construction park green landscaping water-saving irrigation system according to claim 2 is characterized by: The driving member comprises a winding wheel (13) rotatably sleeved on a rotating shaft (3), the winding wheel (13) being coaxially arranged with a gear (14), a friction ring (15) being arranged between the winding wheel (13) and the rotating shaft (3), a plurality of suspension wires (16) wound around the winding wheel (13) being fastened to the bearing ring (9), and an electric telescopic cylinder (17) electrically connected to a control system being arranged on the top of the water storage tank (1), the piston rod of the electric telescopic cylinder (17) being plug-fitted into the tooth groove of the gear (14).

5. The sponge city construction park green landscaping water-saving irrigation system according to claim 2 is characterized by: The bottom end of the rotating shaft (3) is connected to the receiving plate (8), and a plurality of return water grooves (801) extending to the top surface thereof and used to communicate with the receiving groove (101) are circumferentially opened on the circumferential outer wall of the receiving plate (8), and the return water assembly includes a water pressure plate (18) vertically sliding in each return water assembly, and a pressure ring (19) pressed against the top surface of the water pressure plate (18) is arranged on the top of the receiving plate (8), and a lifting groove is vertically opened on the side wall of the receiving plate (8) relative to the return water groove (801). (802), a vertical guide rod (20) is arranged in the lifting groove (802), the water pressure plate (18) is slidably mounted on the guide rod (20), the water pressure plate (18) extends into the lifting groove (802) and is supported between the lifting groove (802) and the bottom wall of the lifting groove (802) by a first return spring (21) mounted on the guide rod (20), each water pressure plate (18) is arranged with a one-way valve (22), and the return water assembly also includes a water pressure part for pushing the water pressure plate (18) to move downward.

6. The sponge city construction park green landscaping water-saving irrigation system according to claim 5 is characterized by: The water pressure part comprises a lifting sleeve (23) which is slidably and rotatably sleeved on the rotating shaft (3); a limit rod (24) which is vertically slidably matched with the bottom of the water storage tank (1) is arranged on the lifting sleeve (23); a plurality of pressure arms (25) are arranged on the outer wall of the lifting sleeve (23); one pressure arm (25) corresponds to one water pressure plate (18); a horizontal groove (231), a reset groove (232) and a spiral groove (234) are formed on the inner wall of the lifting sleeve (23); the horizontal groove (231) The horizontal groove (231) is opened relative to the circumference of the lifting sleeve (23), one end of the horizontal groove (231) is connected to the bottom end of the spiral groove (234), and the other end is connected to the bottom end of the reset groove (232), the top ends of the spiral groove (234) and the reset groove (232) are connected, and a protrusion that slides with the horizontal groove (231), the reset groove (232) and the spiral groove (234) is arranged on the outer wall of the rotating shaft (3), and a second reset compression spring (26) is supported between the lifting sleeve (23) and the accommodating plate (8).

7. The sponge city construction park green landscaping water-saving irrigation system according to claim 6 is characterized by: The bottom end of the pressing arm (25) is arranged in a hemispherical shape.

8. The sponge city construction park green landscaping water-saving irrigation system according to claim 5 is characterized by: The receiving tray (8) is coated with polytetrafluoroethylene.

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