Rainwater filtering and irrigating device for sponge city

Abstract

The invention relates to the technical field of sponge city construction, in particular to a rainwater filtering and irrigating device for a sponge city. According to the irrigation device, the filtering device is additionally arranged, the filtering device is clamped and fixed to the upper portion of the overflow catch basin, when rainwater and other liquid enter the overflow catch basin, the filtering device can filter out most sundries carried in the liquid, and the possibility that a water pump in the overflow catch basin is blocked by the sundries is reduced; the solar power generation device of the street lamp above the overflow catch basin supplies power to the water pump, thereby being more energy-saving and environment-friendly.

Description

Technical Field

[0001] The invention relates to the technical field of sponge city construction, in particular to a rainwater filtering and irrigation device for a sponge city. Background Art

[0002] In order to solve the contradictions of water shortage, environment, ecology, etc., people pay attention to the collection and utilization of rainwater. This topic just solves the problems of water shortage, environment, ecology, etc. When municipal personnel need to collect and use urban rainwater, it is inconvenient to collect and filter rainwater, and it is not convenient to store rainwater. Therefore, a tool is needed to collect municipal rainwater and facilitate the use of rainwater collected by municipal personnel in the later stage. A municipal rainwater collection and irrigation system disclosed in the Chinese utility model patent application disclosure specification CN111528050A calculates and analyzes the parameters such as the amount of rainwater, whether the green belt needs irrigation, irrigation water pressure, irrigation time, irrigation frequency and irrigation interval time through a central controller, controls the switch of the rainwater collection port and the switch of the water pump, and realizes automatic collection and irrigation of rainwater; however, in actual use, due to the lack of filtering equipment, rainwater will be entrained with debris such as leaves when entering the well, resulting in blockage of the water pump and irrigation pipe, affecting the irrigation effect. Summary of the invention

[0003] The technical problem to be solved by the present invention is the problem that the existing rainwater collection and irrigation system lacks a filtering device.

[0004] In order to solve the above problem, the present invention provides an irrigation device capable of filtering rainwater, and its specific solution is: A sponge city rainwater filtering and irrigation device comprises a water pump arranged in an overflow rainwater well, a street lamp is arranged above the overflow rainwater well, and a solar power generation device is equipped on the street lamp, and the solar power generation device provides electricity for the water pump; it also comprises a filtering device, which is fixed on the upper part of the overflow rainwater well, and the filtering device is used to filter the liquid flowing into the overflow rainwater well, the water outlet end of the water pump is connected to a main water pipe, and the main water pipe is connected to a plurality of secondary water pipes, and the secondary water pipes extend to different positions of the green belt.

[0005] Compared with the prior art, the present invention using the above technical solution has the following beneficial effects: The irrigation device of the present invention is provided with a filtering device, which is fixed on the upper part of the overflow rainwater well. When rainwater and other liquids enter the overflow rainwater well, the filtering device can filter out most of the debris contained in the liquid, thereby reducing the possibility that the water pump in the overflow rainwater well is blocked by the debris. The water pump is powered by a solar power generation device of a street lamp above the overflow rainwater well, which is more energy-saving and environmentally friendly.

[0006] Preferably, a further technical solution of the present invention is: The filtering device includes four filter screens, which are surrounded by a rectangle, and the ends of two adjacent filter screens are stacked. A fixing hook is fixed on the filter screen for clamping on the upper edge of the overflow rainwater well. The liquid entering the overflow rainwater well is filtered by the filter screen surrounded by a rectangle, and the filter screen is hung on the overflow rainwater well by the fixing hook so that the filter screen receives the liquid entering the overflow rainwater well.

[0007] The filter device also includes a fixed block, which is arranged in the middle of each filter screen. The fixed block and each filter screen are connected by a spring. When the spring is in a natural state, the area enclosed by the four filter screens is larger than the area of ​​the horizontal cross section of the overflow rainwater well. The four filter screens are contracted or expanded based on the fixed block by the fixed block and the spring, thereby adjusting the area enclosed by the four filter screens. When the filter device is arranged in the overflow rainwater well, the outer side of the filter screen can be abutted against the inner wall of the overflow rainwater well by the spring, so that most of the liquid flowing down the wall of the overflow rainwater well can be filtered by the filter screen before flowing into the overflow rainwater well.

[0008] The fixing hook comprises a fixing rod and a hook head, wherein the bottom end of the fixing rod is fixed on the filter net, the top end of the fixing rod is fixed to the hook head, and the hook head is used to be hung on the upper edge of the overflow rainwater well. Through the hook head and the fixing rod, the filter net can be stably hung on the upper part of the overflow rainwater well.

[0009] A column is fixed on the top of the fixed block, and a water guide plate is arranged on the column. The middle of the top of the water guide plate is convex upward, and the edge of the water guide plate is located directly above each filter screen. By arranging the water guide plate, the falling rainwater is drained and flows to the filter screen, thereby filtering the rainwater.

[0010] A guide rod is fixed on the inner side of the filter screen, and the inner end of the guide rod is movably inserted in the fixed block. The guide rod increases the stability of each filter screen when it is contracted or stretched. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a side view of an embodiment of the present invention when in use; Figure 2 is a stereogram of an embodiment of the present invention when in use; Figure 3 is a schematic diagram of a relaxed state of an irrigation device according to an embodiment of the present invention; Figure 4 is a schematic diagram of the irrigation device in a contracted state according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the disassembled state of the fixing hook of the irrigation device according to an embodiment of the present invention.

[0012] In the figure: 1. street light; 11. solar power generation device; 2. overflow rainwater well; 3. water pump; 4. irrigation device; 41. water guide plate; 42. filter screen; 43. fixing hook; 44. spring; 45. fixing block; 46. guide rod; 47. column; 5. main water pipe. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0014] See attached Figure 1-5 The embodiment of the present invention discloses a sponge city rainwater filtering irrigation device 4, which is applied to a rectangular overflow rainwater well 2 planned and constructed in a sponge city, and includes a water pump 3 arranged in the overflow rainwater well 2, a street lamp 1 is arranged in the green belt above the overflow rainwater well 2, and a solar power generation device 11 is equipped on the street lamp 1, and the solar power generation device 11 is connected to the water pump 3, and the water pump 3 is provided with electric energy through the solar power generation device 11; the irrigation device 4 of this embodiment also includes a filtering device, which is fixed on the upper part of the overflow rainwater well 2, and the filtering device is used to filter the liquid flowing into the overflow rainwater well 2, and the water outlet end of the water pump 3 is connected to the main water pipe 5, and the upper end of the main water pipe 5 extends out of the overflow rainwater well 2, and the main water pipe 5 is connected to a plurality of secondary water pipes, and a plurality of openings are provided on the secondary water pipes, and the secondary water pipes extend to different positions of the green belt; when it is necessary to irrigate the green belt, the water pump 3 is turned on to transport the water in the overflow rainwater well 2 to the main water pipe 5 and the secondary water pipe for irrigation, and the irrigation line is extended through the secondary water pipe.

[0015] In this embodiment, the filtering device includes four rectangular filter screens 42, and the four filter screens 42 form a rectangular area. A rectangular fixing block 45 is arranged in the middle of the four filter screens 42, and at least two springs 44 are arranged on the four sides of the fixing block 45, respectively. The other ends of the two springs 44 on each side are respectively fixed to the inner side walls of each filter screen 42, so that the springs 44 on each side are deformed in the horizontal direction, so that the four filter screens 42 are slightly contracted or expanded based on the fixing block 45, so as to adjust the rectangular area surrounded by the four filter screens 42. When the springs 44 are in a natural state, the area surrounded by the four filter screens 42 is larger than the area of ​​the horizontal cross-section of the overflow rainwater well 2. When the filtering device is set in the overflow rainwater well 2, the springs 44 The outer wall of the filter screen 42 is abutted against the inner wall of the overflow rainwater well 2; preferably, the ends of two adjacent filter screens 42 are stacked up and down, so that when the filter screen 42 contracts or expands under the drive of the spring 44, there is always an overlapping part between the ends of the filter screen 42, thereby ensuring that most of the liquid flowing into the overflow rainwater well 2 can be filtered by the filter screen 42; the top outer end of each filter screen 42 is fixed with a fixed hook 43, and the fixed hook 43 is used to fix the filter screen 42 on the upper edge of the overflow rainwater well 2. The fixed hook 43 includes a fixed rod and a hook head, the bottom end of the fixed rod is fixed on the filter screen 42, the outer wall of the fixed rod is flush with the outer wall of the filter screen 42, and the top end of the fixed rod is fixed to the hook head, and the hook head is used to hang on the upper edge of the overflow rainwater well 2. Through the hook head and the fixed rod, the filter screen 42 can be stably hung on the upper part of the overflow rainwater well 2. The liquid entering the overflow rainwater well 2 is filtered through a rectangular filter net 42 , and the filter net 42 is hung on the overflow rainwater well 2 through a fixed hook 43 so that the filter net 42 filters the liquid entering the overflow rainwater well 2 .

[0016] In this embodiment, a column 47 is fixed on the top of the fixing block 45, and a water guide plate 41 is arranged on the column 47. The horizontal area of ​​the water guide plate 41 is larger than the rectangular area surrounded by the inner walls of the four filter screens 42 when the spring 44 is stretched to the maximum extent. The middle of the top of the water guide plate 41 is convex upward, and the edge of the water guide plate 41 is located directly above each filter screen 42. By arranging the water guide plate 41, the falling rainwater is drained and flows to the filter screen 42, thereby filtering the rainwater, and preventing the rainwater from flowing directly into the overflow rainwater well 2 from the middle of the four filter screens 42 without passing through the filter screen 42.

[0017] In this embodiment, a guide rod 46 is fixed on the inner side wall of the filter screen 42, a guide hole corresponding to the position of the guide rod 46 is opened on the fixing block 45, and the inner end of the guide rod 46 is movably inserted into the guide hole of the fixing block 45. By providing the guide rod 46, when the filter screen 42 is contracted or stretched, the guide rod 46 guides and limits the filter screen 42, thereby increasing the stability of each filter screen 42 when it is contracted or stretched.

[0018] The irrigation device 4 of the present invention is provided with a filtering device, which is fixed on the upper part of the overflow rainwater well 2. When rainwater and other liquids enter the overflow rainwater well 2, the filtering device can filter out most of the debris contained in the liquid, thereby reducing the possibility that the water pump 3 in the overflow rainwater well 2 is blocked by the debris. The water pump 3 is powered by the solar power generation device 11 of the street lamp 1 above the overflow rainwater well 2, which is more energy-saving and environmentally friendly.

[0019] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A sponge city rainwater filtration irrigation device, comprising a water pump arranged in an overflow rainwater well, a street lamp arranged above the overflow rainwater well, a solar power generation device equipped on the street lamp, and the solar power generation device provides electric energy for the water pump; characterized in that: It also includes a filtering device, which is fixed on the upper part of the overflow rainwater well and is used to filter the liquid flowing into the overflow rainwater well. The water outlet of the water pump is connected to a main water pipe, and the main water pipe is connected to a plurality of secondary water pipes, which extend to different positions of the green belt.

2. The sponge city rainwater filtration irrigation device according to claim 1 is characterized in that: The filter device comprises four filter screens, which are surrounded by a rectangle, and the ends of two adjacent filter screens are stacked. A fixing hook for clamping on the upper edge of the overflow rainwater well is fixed on the filter screen.

3. The sponge city rainwater filtration irrigation device according to claim 2 is characterized in that: The filtering device also includes a fixed block, which is arranged in the middle of each filter screen. The fixed block is connected to each filter screen through a spring. When the spring is in a natural state, the area surrounded by the four filter screens is larger than the area of ​​the horizontal cross-section of the overflow rainwater well.

4. The sponge city rainwater filtration irrigation device according to claim 2 is characterized in that: The fixing hook comprises a fixing rod and a hook head, the bottom end of the fixing rod is fixed on the filter net, the top end of the fixing rod is fixed to the hook head, and the hook head is used to be hung on the upper edge of the overflow rainwater well.

5. The sponge city rainwater filtration irrigation device according to claim 3 is characterized in that: A column is fixed on the top of the fixed block, and a water guide plate is arranged on the column. The middle of the top of the water guide plate protrudes upward, and the edge of the water guide plate is located just above each filter screen.

6. The sponge city rainwater filtration irrigation device according to claim 3 is characterized by: A guide rod is fixed on the inner side of the filter screen, and the inner end of the guide rod is movably inserted in the fixing block.

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