An intelligent rainwater storage system based on mid-layer water extraction

Abstract

The invention discloses an intelligent rainwater storage and regulation system based on mid-layer water intake, comprising a vertical pole and a limiting sleeve fixedly mounted at the bottom of a rainwater storage and regulation tank, a sliding sleeve and a limiting rod mounted on the upper and lower parts of the vertical pole, a sliding sleeve being slidably connected to a box body on one side of the sliding sleeve, a floating block being mounted on the top of the box body, and a hollow box body comprising a main impeller chamber, a regulating chamber, an impeller chamber and a gear chamber, a motor being mounted outside a side plate of the main impeller chamber, a driving shaft at an output end of the motor extending into the main impeller chamber, and a main impeller being mounted on the driving shaft; a first guide port and a second guide port are arranged on the two side plates of the main impeller chamber, and a box body water inlet is arranged on the side plate of the auxiliary impeller chamber; the driving shaft is connected to a spiral shaft through a gear, a spiral blade is mounted on the spiral shaft, a spiral conveying pipe is sleeved on the outer part of the spiral blade, the box body water inlet is located inside the spiral conveying pipe, and a conveying pipe inlet is arranged on the spiral conveying pipe; a clean water inlet and a sewage inlet are arranged on the upper and lower parts of a side plate of the regulating chamber, and a toggle assembly is mounted inside the regulating chamber to adjust the sealing switching of the clean water inlet and the sewage inlet.

Description

Technical Field

[0001] The present invention relates to the technical field of sponge city construction, and in particular to an intelligent rainwater storage system based on middle-layer water extraction. Background Art

[0002] With the development of sponge cities, the popularity of rainwater gardens, bioretention pools, grass-planted ditches and rainwater storage pools in newly built communities has greatly increased. As an important component of sponge city construction, rainwater storage pools integrate water storage, drainage, ecology, etc., and are an important part of sponge city construction.

[0003] In the process of sponge city construction, in order to make the community or area meet the requirements of runoff peak reduction index, non-point source pollution reduction index, and rainwater resource utilization index, rainwater storage tank is an indispensable structure. In order to give full play to the economic benefits of the structure, it is often necessary to comprehensively utilize the rainwater stored by the structure after the rain.

[0004] During rainfall, rainwater entering the rainwater storage tank for storage is generally only removed from large floating objects through the grille. After the rain, some impurities in the rainwater stored in the rainwater storage tank have a density lower than that of water and will float on the water surface in the rainwater storage tank, while some particles with a density higher than that of water will settle at the bottom of the rainwater storage tank. If rainwater is directly pumped from the rainwater storage tank for use, it is inevitable that scum on the water surface or sediment at the bottom of the tank will be taken, thus affecting the long-term operation of the rainwater comprehensive utilization system in the rainwater storage tank after the rain.

[0005] Chinese patent document CN109778996A discloses a rainwater treatment system for a rainwater storage tank. The invention relates to the field of rainwater technology and discloses a rainwater treatment system for a rainwater storage tank, comprising a rainwater storage tank for storing rainwater, a water suction well being arranged beside the rainwater storage tank, and a middle-layer water intake assembly being arranged in the rainwater storage tank; a water intake port connected to the water suction well being arranged on the wall of the rainwater storage tank; the middle-layer water intake assembly comprises a skimmer, a skimmer outlet pipe connected to the skimmer, a connecting straight pipe and a middle-layer water outlet pipe, the connecting straight pipe connecting the skimmer outlet pipe and the middle-layer water outlet pipe, and the middle-layer water outlet pipe being installed to the water intake port; the skimmer is suspended in the middle of the rainwater in the rainwater storage tank and the skimmer opening of the skimmer is arranged downward. In the rainwater treatment system of the rainwater storage tank of the present invention, the skimmer opening of the middle-layer water intake assembly is downward and suspended, so that the middle-layer water with better water quality in the rainwater storage tank can be taken out, which can prevent the water intake from taking scum on the water surface of the rainwater storage tank and sediment deposited in the rainwater storage tank.

[0006] In the prior art, a suspended pipe water intake is set in the middle water area of ​​the rainwater storage tank, and water is taken by a motor. When the water level in the rainwater storage tank drops and the water intake is lower than the lower limit of the water intake, the motor continues to drive without intervening in the water intake operation, resulting in rainwater that does not meet expectations. During the water intake process, there is no self-checking and resetting function for the operation of the water intake device. When cleaning floating objects or impurities inside the rainwater storage tank, manual fishing or waiting for natural sinking is required, which is inefficient. Summary of the invention

[0007] In view of the shortcomings of the prior art, the present invention provides an intelligent rainwater storage and regulation system based on middle-layer water intake. When the water intake of the device is below the lower limit position, the clean water outlet is closed by toggling the component to ensure the water quality; the clean water outlet closing and resetting functions are provided to further ensure the water quality; a pipeline cleaning component is provided to clean impurities or floating objects in the pool to purify the water quality.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A rainwater intelligent regulation and storage system based on mid-layer water extraction comprises a vertical pole and a limit sleeve fixedly installed at the bottom of a rainwater regulation and storage tank, a sliding sleeve and a limit rod are installed on and below the vertical pole, one side of the sliding sleeve is slidably connected to a box body, a floating block is installed on the top of the box body, the box body is a hollow structure, a transverse partition is installed inside the box body to divide the box body into two chambers, a main impeller chamber and a regulating chamber are formed by installing a first longitudinal partition in the box body on one side, and an auxiliary impeller chamber and a gear chamber are formed by installing a second longitudinal partition in the box body on the other side, the first longitudinal partition and the second longitudinal partition are both arranged perpendicular to the transverse partition; a motor is installed outside the side plate of the main impeller chamber away from the transverse partition, a driving shaft at the output end of the motor extends into the main impeller chamber, a main impeller is installed on the driving shaft, and the regulating chamber and the auxiliary impeller chamber are located on both sides of the center line of the main impeller; a second guide port is opened on the first longitudinal partition, a first guide port is opened on the transverse partition between the main impeller chamber and the auxiliary impeller chamber, and a gear chamber is formed on the auxiliary impeller chamber away from the transverse partition A water inlet of the box body is provided on the side plate of the plate; the driving shaft extends through the diaphragm and extends into the gear chamber, and a driving gear is installed on the driving shaft located in the gear chamber, and a spiral shaft is installed on the output end of the driving gear after meshing with the gear assembly, and the spiral shaft extends to the outside of the box body, and a spiral blade is installed on the spiral shaft, and a spiral conveying pipe is sleeved on the outside of the spiral blade, and the water inlet of the box body is located inside the spiral conveying pipe, and a conveying pipe inlet is provided on the side of the spiral conveying pipe close to the box body; a clean water inlet and a sewage inlet are provided on the upper and lower sides of a side plate of the regulating chamber, and the clean water inlet and the sewage inlet are arranged vertically opposite to each other at the openings in the regulating chamber, and a plug guide rod is provided between the vertical openings, and a first plug and a second plug are respectively installed at both ends of the plug guide rod, and the plug guide rod is slidably sleeved in the first limit block and the second limit block, and the ends of the first limit block and the second limit block are fixedly arranged on the side plate; a toggle assembly is installed on one side of the plug guide rod;

[0010] As a preferred technical solution of the present invention, the toggle assembly includes a guide handle base, the guide handle base is located between the plug guide rod and the transverse partition, the guide handle base is fixedly arranged on the first longitudinal partition, the guide handle is installed on the guide handle base through the guide handle rotating shaft, one end of the guide handle away from the guide handle rotating shaft is connected to the spring end through the second spring pin, and the other end of the spring is connected to the middle of the plug guide rod through the first spring pin; a guide sleeve is installed on the side of the guide handle base away from the plug guide rod, a toggle guide rod is slidably arranged in the guide sleeve, the bottom of the toggle guide rod is slidably arranged in the limiting sleeve, a first cross bar and a second cross bar are installed on the toggle guide rod near the limiting rod, the first cross bar and the second cross bar are respectively located at the upper and lower positions of the limiting rod, a first traction plate and a second traction plate are installed on the toggle guide rod near the guide handle, the first traction plate and the second traction plate are respectively located at the upper and lower positions of the guide handle;

[0011] As a preferred technical solution of the present invention, the gear assembly includes a driving gear, a driven gear, a first transmission gear and a second transmission gear, the driving gear meshes with the driven gear, the driven gear is mounted on a driven shaft, the driven shaft is mounted on opposite side plates of the gear chamber through bearings, the other end of the driven shaft is mounted with a first transmission gear, the first transmission gear meshes with the second transmission gear, and the second transmission gear is mounted with a spiral shaft;

[0012] As a preferred technical solution of the present invention, an auxiliary impeller is provided inside the auxiliary impeller chamber, the auxiliary impeller is arranged perpendicularly to the axis of the main impeller, and the impeller shaft on the auxiliary impeller extends vertically out of the bottom plate of the box body, a power gear is installed at the end of the impeller shaft, the power gear is meshed with an intermediate gear, the intermediate gear is meshed with a reduction gear, and the intermediate gear and the reduction gear are both installed on the outside of the bottom plate through a rotating shaft;

[0013] As a preferred technical solution of the present invention, a suspension rod is fixedly provided on the chassis of the reduction gear, and a side of the suspension rod away from the center of the reduction gear is connected to the wedge body by bolts; a third cross bar is installed on the side of the guide rod toward the center of the reduction gear, and the third cross bar is located above the bottom plane of the wedge body;

[0014] As a preferred technical solution of the present invention, the sliding sleeve is connected to the box body through a slider, a through sliding groove is provided on one side of the sliding sleeve in the vertical direction, a slider is installed in the sliding groove, and the end of the slider away from the sliding groove is welded to the box body;

[0015] As a preferred technical solution of the present invention, the end of the spiral conveying pipe away from the box body is connected to a bellows, and the other end of the bellows is connected to a downpipe, which is located outside the rainwater storage tank, and one end of the downpipe away from the rainwater storage tank is lower than the height of the spiral conveying pipe, and the low-position end of the downpipe is connected to a pressure-regulating pipe, a tank body is installed on the pressure-regulating pipe, the pressure-regulating pipe is connected to the water inlet of the tank body, a one-way valve is installed at the water inlet of the tank body, and the tank body outlet on the tank body is connected to a return pipe, the diameter of the return pipe is smaller than the diameter of the downpipe, and the end of the return pipe away from the tank body extends to the top of the filter in the rainwater storage tank; a drain valve is installed at the end of the pressure-regulating pipe;

[0016] As a preferred technical solution of the present invention, a detachable filter screen is installed on the pressure regulating pipe, and the detachable filter screen is located at the front end of the drain valve;

[0017] As a preferred technical solution of the present invention, the drain valve is a counterweight drain valve;

[0018] As a preferred technical solution of the present invention, a sliding sleeve is installed at the free end of the third cross bar.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the water inlet of the box for taking water in the middle water area of ​​this system approaches the lower limit water level, the toggle assembly is triggered, the guide handle pushes back the top of the second traction plate, so that the free end of the guide handle rotates around the guide handle shaft to the top of the guide handle base, and the spring drives the first plug on the plug guide rod to close the clean water elbow, and the delivery port is switched to connect the sewage elbow to prevent rainwater that does not meet the standards from being transported to the utilization area; at this time, the device is connected to the sewage outlet, and the water outlet of the sewage outlet is discharged into the rainwater storage tank. The spiral conveying pipe continues to operate, transports, refluxes and filters the water in the storage tank, and then merges into the rainwater storage tank. When the water level rises, the toggle assembly is triggered again, the guide handle pushes back the bottom of the first traction plate, and the free end of the guide handle rotates around the guide handle shaft to the bottom of the handle base, and the spring drives the second plug on the plug guide rod to close the sewage elbow, and the delivery port is switched to connect the clean water elbow to transport rainwater that meets the standards outward.

[0021] During the water intake process, the device automatically adjusts the toggle component to achieve timely switching between the clean water outlet and the sewage outlet to ensure the water intake quality. There is no need for manual monitoring throughout the process, and there is no need to shut down the motor to adjust the direction of the delivery pipeline, which saves manpower, improves efficiency, and avoids errors caused by manual operation. When the water level drops and the water quality does not meet the standards, the device automatically switches the outlet to the sewage outlet. At this time, the device stops delivering rainwater to the clean water outlet, but the spiral delivery pipe continues to run to filter the water in the reservoir and purify the water quality.

[0022] 2. When the water inlet of the box of this system is located below the lower limit water level and the clean water outlet of the box is in the open state, the wedge moves in a circle with the reduction gear, and the third cross bar moves from bottom to top with the inclined surface of the wedge. The third cross bar drives the second traction plate on the guide rod to squeeze the guide handle upward, and the free end of the guide handle rotates around the guide handle shaft. The guide handle drives the first plug on the plug guide rod through the spring to seal the clean water elbow. When the water inlet of the box is above the lower limit water level and the clean water outlet of the box is in an open state, the second cross bar is displaced upward with the box, and the top of the second cross bar is close to the bottom of the limit rod; the wedge moves in a circular motion with the reduction gear, and the third cross bar moves from bottom to top with the inclined surface. The wedge drives the third cross bar, driving the second cross bar at the lower part of the guide rod to move upward, and the top of the second cross bar abuts against the bottom of the limit rod, and the box moves downward. The free end of the guide handle abuts and presses on the second traction plate, and the free end of the guide handle rotates upward around the guide handle shaft under the reverse action, so that the first plug on the plug guide rod seals the clean water elbow. At this time, due to the circular motion of the wedge, the third cross bar gradually moves away from the top or inclined surface of the wedge, and the box moves upward. The free end of the guide handle located above the guide handle base abuts and presses on the first traction plate. Under the reaction force, the free end of the guide handle rotates downward around the guide handle shaft, driving the second plug on the plug guide rod to move downward to seal the sewage elbow, so that the clean water elbow is restored to open.

[0023] During the water intake process, the wedge body that moves in a circular motion on the device periodically pushes the free end of the guide handle to the top of the guide handle base, and drives the first plug on the plug guide rod through the spring to seal and close the clean water elbow, preventing sewage from being transported to the utilization area when the device components are out of control; at the same time, the toggle component reopens the clean water elbow that is forced to be closed to meet the water intake conditions of the middle water area. By setting a self-checking reset device, the water intake port is closed in time when it does not meet the water intake area, preventing sewage from entering the clean water port, and further ensuring the water intake quality.

[0024] 3. A pressure regulating pipe, a drain valve and a tank are installed at a low position outside the rainwater storage tank. The impurity mixed water gathered from the spiral conveying pipe enters the low-position tank through the pressure regulating pipe. Under the action of the tank pressure, the water is transported from the tank outlet through the return pipe to the filter in the rainwater storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the installation structure of the device of the present invention;

[0026] Figure 2 This is a schematic diagram of the matching structure of the box and the upright pole of the present invention;

[0027] Figure 3 It is a three-dimensional schematic diagram of the cross-sectional structure of the spiral conveying pipe of the present invention;

[0028] Figure 4The box section structure of the present invention is a three-dimensional schematic diagram Figure 1 ;

[0029] Figure 5 The box section structure of the present invention is a three-dimensional schematic diagram Figure 2 ;

[0030] Figure 6 It is a three-dimensional schematic diagram of the cross-sectional structure of the main impeller chamber of the present invention;

[0031] Figure 7 It is a three-dimensional schematic diagram of the cross-sectional structure of the gear chamber of the present invention;

[0032] Figure 8 It is a three-dimensional schematic diagram of the cross-sectional structure of the regulating chamber of the present invention;

[0033] Fig. 9 It is a schematic diagram of an enlarged view A of the conditioning chamber of the present invention;

[0034] Fig.10 This is a schematic diagram of the bottom structure of the box body of the present invention;

[0035] Fig.11 It is a schematic diagram of the matching structure of the wedge and the third cross bar of the present invention;

[0036] Fig.12 This is a schematic diagram of the matching structure of the tank body and the pressure regulating pipe of the present invention;

[0037] In the figure: 11, rainwater storage tank; 12, box; 13, motor; 14, floating block; 15, vertical pole; 16, sliding sleeve; 17, spiral conveying pipe; 18, bellows; 19, filter; 20, clean water outlet; 21, sewage outlet; 22, sewer pipe; 23, return pipe; 24, pressure regulating pipe; 25, tank; 26, tank water inlet; 27, tank water outlet; 28, drain valve; 29, slider; 30, chute; 31, conveying pipe inlet ; 32. Limit rod; 33. Limit sleeve; 34. Toggle guide rod; 35. First cross bar; 36. Second cross bar; 37. Third cross bar; 38. Wedge; 39. Water inlet of box; 40. Screw shaft; 41. Screw blade; 42. Bracket; 43. Main impeller chamber; 44. Sub-impeller chamber; 45. Gear chamber; 46. Adjustment chamber; 47. First cross plate; 48. Second cross plate; 49. Transverse partition; 50. First longitudinal plate; 51. Second longitudinal plate; 52, first longitudinal partition plate; 53, second longitudinal partition plate; 54, impeller shaft; 55, main impeller; 56, auxiliary impeller; 57, bottom plate; 58, top plate; 59, first guide port; 60, second guide port; 61, driving shaft; 62, driven shaft; 63, driving gear; 64, driven gear; 65, first transmission gear; 66, second transmission gear; 67, first limit block; 68, second limit block; 69, plug guide rod; 70. First plug; 71. Second plug; 72. Clean water elbow; 73. Sewage elbow; 74. Guide sleeve; 75. First traction plate; 76. Second traction plate; 77. Guide handle shaft; 78. Spring; 79. Guide handle; 80. Guide handle base; 81. First spring pin; 82. Second spring pin; 83. Power gear; 84. Intermediate gear; 85. Reduction gear; 86. Suspension rod; 87. Overflow port; 88. One-way valve. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0039] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] The present invention provides a rainwater intelligent storage system based on mid-layer water extraction. Figure 1 As shown in the figure, a vertical pole 15 is fixedly installed at the bottom of the rainwater storage tank 11, and a widened and enlarged bottom plate is set at the contact between the vertical pole 15 and the rainwater storage tank 11 to enhance stability; a sliding sleeve 16 is installed on the upper part of the vertical pole 15, and a limit rod 32 is installed on the lower part of the vertical pole 15; the sliding sleeve 16 is sleeved on the vertical pole 15 and fixed by bolts, and the installation position of the sliding sleeve 16 is adjusted according to the height range of the box body 12 sliding up and down, and the position of the limit rod 32 on the vertical pole 15 is adjusted according to the preset lower limit height of the box body 12.

[0041] Figure 1 , Figure 2 , Figure 3 As shown in , a floating block 14 is installed on the top plate 58 of the box 12. The height of the box 12 in the water is adjusted by increasing or decreasing the number of the floating blocks 14. In this embodiment, the water inlet 39 of the box is located below the horizontal plane and is not less than 400 mm from the horizontal plane. The water inlet 39 of the box is not less than 400 mm from the bottom of the rainwater storage tank 11. A T-shaped through-slot 30 is provided in the vertical direction on one side of the sliding sleeve 16. A T-shaped slider 29 is welded on the box 12. The slider 29 is adapted to slide with the slot 30, so that the box 12 can slide up and down along the vertical pole 15 due to the change of buoyancy.

[0042] Figure 4As shown in the figure, the housing 12 is a hollow structure, and the housing 12 includes a main impeller chamber 43, an auxiliary impeller chamber 44, a gear chamber 45 and a regulating chamber 46; a transverse partition 49 is installed inside the housing 12, and the first longitudinal plate 50 and the second longitudinal plate 51 are both vertically connected to the transverse partition 49, and the transverse partition 49 divides the housing into two chambers; a first longitudinal partition 52 is installed in one side of the chamber, and the first longitudinal partition 52 is perpendicular to the first transverse plate 47 and the transverse partition 49, so as to form a main impeller chamber 43 and a regulating chamber 46; a second longitudinal partition 53 is installed in the other side of the chamber, and the second longitudinal partition 53 is perpendicular to the second transverse plate 48 and the transverse partition 49, so as to form an auxiliary impeller chamber 44 and a gear chamber 45; the first longitudinal partition 52 and the second longitudinal partition 53 are both perpendicular to the transverse partition 49, and the regulating chamber 46 and the auxiliary impeller chamber 44 are respectively located on both sides of the center line of the main impeller 55.

[0043] The motor 13 is installed outside the side plate of the main impeller chamber 43 away from the diaphragm 49. The motor 13 is an underwater motor, sealed and waterproof, commercially available, and is a prior art.

[0044] Figure 5 As shown in , a driving shaft 61 is installed at the output end of the motor 13, and the driving shaft 61 penetrates the side plate and extends into the main impeller chamber 43. The driving shaft 61 is connected to the side plate by a sealed bearing, and the main impeller 55 is installed on the driving shaft 61 located in the main impeller chamber 43.

[0045] Figure 5 , Figure 6 As shown in the figure, a second guide port 60 is opened on the first longitudinal partition 52, a first guide port 59 is opened on the transverse partition 49 between the main impeller chamber 43 and the auxiliary impeller chamber 44, a box water inlet 39 is opened on the side panel of the auxiliary impeller chamber 44 away from the transverse partition 49, and a filter screen is installed on the box water inlet 39. When the motor 13 drives the main impeller 55 to rotate, water flows into the auxiliary impeller chamber 44 through the box water inlet 39, and the water in the auxiliary impeller chamber 44 enters the main impeller chamber 43 through the first guide port 59, and the water in the main impeller chamber 43 is guided to the regulating chamber 46 through the second guide port 60.

[0046] The driving shaft 61 extends through the transverse partition 49 and extends into the gear chamber 45 . A driving gear 63 is installed on the driving shaft 61 in the gear chamber 45 . The output end of the driving gear 63 after meshing with the gear assembly is installed with the spiral shaft 40 .

[0047] Figure 4 , Figure 5As shown in , the gear assembly includes a driving gear 63, a driven gear 64, a first transmission gear 65 and a second transmission gear 66. The driving gear 63 meshes with the driven gear 64. The driven gear 64 is mounted on the driven shaft 62. The driven shaft 62 is mounted on the opposite side plates of the gear chamber 45 through bearings. The other end of the driven shaft 62 is mounted with a first transmission gear 65. The first transmission gear 65 meshes with the second transmission gear 66. The screw shaft 40 is mounted on the second transmission gear 66. Among them, the number of teeth of the driven gear 64 is greater than that of the driving gear 63, so as to achieve preliminary deceleration. The number of teeth of the second transmission gear 66 is greater than that of the first transmission gear 65, so as to achieve further deceleration. The output speed of the motor is continuously decelerated by the gear assembly and then transmitted to the screw shaft 40.

[0048] Figure 2 , Figure 3 As shown in the figure, the spiral shaft 40 extends to the outside of the box body, a spiral blade 41 is installed on the spiral shaft 40, a spiral conveying tube 17 is sleeved outside the spiral blade 41, a bracket 42 is installed at the inner opening of the end of the spiral conveying tube 17 away from the box body 12, and the spiral shaft 40 is installed in the center of the bracket 42 through a bearing.

[0049] The water inlet 39 of the box body is located inside the spiral conveying pipe 17 , and a conveying pipe inlet 31 is opened on the side of the spiral conveying pipe 17 close to the box body 12 ; the water inlet 39 of the box body is installed with a filter screen, and when the water flows into the water inlet 39 of the box body, the impurities in the water are gathered in the spiral conveying pipe 17 .

[0050] Figure 7 , Figure 8 , Fig. 9 As shown in the figure, a clean water inlet 20 and a sewage inlet 21 are provided at the upper and lower sides of a side plate of the regulating chamber 46, the clean water inlet 20 is connected to a clean water elbow 72, and the sewage inlet 21 is connected to a sewage elbow 73. The openings of the clean water elbow 72 and the sewage elbow 73 located in the regulating chamber 46 are vertically arranged opposite to each other, and a plug guide rod 69 is provided between the vertical openings. The first plug 70 and the second plug 71 are symmetrically installed at both ends of the plug guide rod 69, respectively. The plug guide rod 69 is slidably sleeved in the first limit block 67 and the second limit block 68, and the ends of the first limit block 67 and the second limit block 68 are fixed on the side plate;

[0051] Figure 7 , Fig. 9As shown in , a toggle assembly is installed on one side of the plug guide rod 69 to control the plug to switch the seal with the clean water elbow 72 or the sewage elbow 73. When the first plug 70 is separated from the clean water outlet 20, the second plug 71 is sealed with the sewage outlet 21, that is, the clean water outlet 20 is connected, and the water outlet of the clean water outlet 20 is transported to the outside of the rainwater storage tank 11 to connect to the comprehensive utilization area. When the second plug 71 is separated from the sewage outlet 21, the first plug 70 is sealed with the clean water outlet 20, that is, the sewage outlet 21 is connected, and the water outlet of the sewage outlet 21 is discharged to the inside of the rainwater storage tank 11. At this time, the spiral conveying pipe 17 continues to operate to transport, reflux and filter the water in the reservoir to purify the water quality.

[0052] Fig. 9 As shown in, the toggle assembly includes a guide handle base 80, which is located between the plug guide rod 69 and the cross partition 49, and the guide handle base 80 is fixed to the first longitudinal partition 52 by screws. The guide handle 79 is installed on the guide handle base 80 through the guide handle rotating shaft 77, and the end of the guide handle 79 away from the guide handle rotating shaft 77 is connected to the end of the spring 78 through the second spring pin 82, and the other end of the spring 78 is connected to the middle part of the plug guide rod 69 through the first spring pin 81; when the end of the guide handle 79 connected to the spring is subjected to an upward or downward external force, the guide handle 79 moves in the direction of the force, and when the guide handle 79 rotates around the guide handle rotating shaft 77 to be perpendicular to the plug guide rod 69, there is no need to apply external force, and under the action of inertia and the spring, the guide handle 79 will continue to rotate rapidly in the original direction of movement.

[0053] A guide sleeve 74 is fixedly installed on the side of the guide handle base 80 away from the plug guide rod 69, and a toggle guide rod 34 is slidably provided inside the guide sleeve 74. The bottom of the toggle guide rod 34 is slidably inserted into the limit sleeve 33, and the limit sleeve 33 is fixedly installed at the bottom of the rainwater storage tank 11 or fixedly connected to the vertical pole 15.

[0054] A first cross bar 35 and a second cross bar 36 are installed on the toggle guide rod 34 near the limit rod 32. The first cross bar 35 and the second cross bar 36 are respectively located at the upper and lower positions of the limit rod 32, and the first cross bar 35, the second cross bar 36 and the limit rod 32 have overlapping parts in the vertical projection; a first traction plate 75 and a second traction plate 76 are installed on the toggle guide rod 34 near the guide handle 79. The first traction plate 75 and the second traction plate 76 are respectively located at the upper and lower positions of the guide handle 79, and the first traction plate 75, the second traction plate 76 and the guide handle 79 have overlapping parts in the vertical projection.

[0055] When the first plug 70 seals the clean water elbow 72, the free end of the guide handle 79 (i.e., the end of the guide handle 79 connected to the spring) is above the guide handle base 80; when the second plug 71 seals the sewage elbow 73, the free end of the guide handle 79 (i.e., the end of the guide handle 79 connected to the spring) is below the guide handle base 80; when the guide handle 79 is in the upper and lower states, the distance between the upper and lower static positions of the free end of the guide handle 79 is set to A, the distance between the first traction plate 75 and the second traction plate 76 is set to B, satisfying A=2B (ignoring the thickness of the components), and the guide handle 79 is located between the first traction plate 75 and the second traction plate 76, and the first traction plate 75, the second traction plate 76 and the guide handle 79 have overlapping parts in the vertical projection.

[0056] When in use, the buoyancy of the box 12 is changed by adjusting the volume of the floating block 14, thereby adjusting the depth of the box 12 in the rainwater storage tank 11. In this embodiment, the depth of the water inlet of the box 12 below the water surface is greater than 400 mm, and the box 12 slides up and down along the vertical rod 15 due to the change of water level buoyancy through the cooperation of the slider 29 and the slide groove 30;

[0057] Determine the position of the limit rod 32 on the vertical pole 15, first fix the first cross bar 35 on the toggle guide rod 34. According to the lower limit depth of water intake, adjust the height position of the limit rod 32 on the vertical pole 15, and adjust the sliding box 12 up and down. In this embodiment, the distance between the box water inlet 39 and the bottom of the rainwater storage tank 11 is adjusted to 400mm. Secondly, seal the sewage elbow 73 with the second plug 71, and the free end of the guide handle 79 is below the guide handle base 80. Then, the second traction plate 76 abuts the free end of the guide handle 79, and then move the limit rod 32 so that the top of the limit rod 32 abuts the bottom of the first cross bar 35. At this time, the height position of the limit rod 32 on the vertical pole 15 is the lower limit position, and the limit rod 32 is fixed on the vertical pole 15; the second cross bar 36 is extended downward from the position of the first cross bar 35 to be fixed, and the extension distance is C, which satisfies A=2C (ignore the thickness of the component).

[0058] Figure 7 , Figure 8 , Fig. 9As shown in the figure, the motor 13 works normally. When the box body 12 draws water in the middle water area, the free end of the guide handle 79 is below the guide handle base 80, the second plug 71 and the sewage elbow 73 are closed, the first plug 70 and the clean water elbow 72 are separated, and the water flows out through the clean water elbow 72 and is diverted to the rainwater comprehensive utilization area; when the water level drops, the box body 12 falls with the water level to the preset lower limit water level (the distance between the box body water inlet 39 and the bottom of the rainwater storage tank 11 is 400mm). At this time, the toggle assembly is triggered, the top of the second traction plate 76 abuts the bottom end of the guide handle 79, and the top of the limit rod 32 abuts the bottom of the first cross bar 35. When the water level continues to drop, the box 12 falls, causing the guide handle 79 to be pushed in the opposite direction, and the free end of the guide handle 79 moves upward. When it moves to a position perpendicular to the plug guide rod 69, due to the contraction force of the spring 78, the free end of the guide handle 79 is quickly pulled by the spring 78 to the top of the guide handle base 80 , under the reaction force of the spring 78, the plug guide rod 69 drives the first plug 70 to close the clean water elbow 72, the second plug 71 and the sewage elbow 73 are separated, and the sewage elbow 73 is opened, so that the water flows through the sewage outlet 21 and flows out to the rainwater storage tank 11; at this time, the device is connected to the sewage outlet 21, and the water outlet of the sewage outlet 21 is discharged into the rainwater storage tank 11, and the spiral conveying pipe 17 continues to operate to convey the water in the water storage tank, reflux and filter, and then merge into the rainwater storage tank.

[0059] When the water level rises, the box body 12 rises with it. At this time, the bottom of the first traction plate 75 abuts against the top of the free end of the guide handle 79, and the top of the second cross bar 36 abuts against the bottom of the limit rod 32. When the box body 12 continues to move upward, the free end of the guide handle 79 moves downward, and the guide handle 79 is quickly pulled to the bottom of the guide handle base 80 by the spring 78. Under the reaction force of the spring 78, the plug guide rod 69 is pulled downward, and the plug guide rod 69 drives the second plug 71 to close the sewage elbow 73. The first plug 70 and the clean water elbow 72 are separated, so that the clean water elbow 72 is opened, so that rainwater that meets the standards is transported to the utilization area through the clean water elbow 72.

[0060] Fig.10 , Fig.11 As shown in , an auxiliary impeller 56 is provided inside the auxiliary impeller chamber 44, and the auxiliary impeller 56 is arranged perpendicularly to the axis of the main impeller 55, and the impeller shaft 54 ​​on the auxiliary impeller 56 extends perpendicularly out of the bottom plate 57 of the box body, and a power gear 83 is installed at the end of the impeller shaft 54, and the power gear 83 is meshed with an intermediate gear 84, and the intermediate gear 84 is meshed with a reduction gear 85, and the intermediate gear 84 and the reduction gear 85 are both installed on the bottom plate 57 through a rotating shaft. Through the deceleration of the two sets of gears, the high speed generated by the auxiliary impeller chamber 44 is reduced, and the reduction gear 85 is slowly rotated and output.

[0061] A suspension rod 86 is fixedly provided on the chassis of the reduction gear 85, and the side of the suspension rod 86 away from the center of the reduction gear 85 is connected to the wedge 38 by bolts; the third cross bar 37 is installed on the side of the guide rod 34 toward the center of the reduction gear 85, and the third cross bar 37 is located above the bottom plane of the wedge 38. A sliding sleeve is installed on the free end of the third cross bar 37, which facilitates the third cross bar 37 to rise to the high position of the inclined surface of the wedge 38 through sliding contact.

[0062] The wedge 38 is connected to the chassis of the reduction gear 85 through the suspension rod 86 , and the wedge 38 is fixedly connected to the lower part of the suspension rod 86 . The wedge 38 is a symmetrically arranged double-bevel structure, and the third cross bar 37 is always located above the bottom plane of the wedge 38 .

[0063] When the third cross bar 37 is located between the upper plane and the lower plane of the wedge 38 , and the wedge 38 performs a circular motion along with the reduction gear 85 , the third cross bar 37 moves from bottom to top along with the inclined surface until it reaches the height of the upper plane of the wedge 38 .

[0064] In this embodiment, the straight-line distance between the upper and lower final landing points of the free end of the guide handle 79 is twice the distance between the first traction plate 75 and the second traction plate 76; the straight-line distance between the upper and lower final landing points of the free end of the guide handle 79 is twice the distance between the first cross bar 35 and the second cross bar 36.

[0065] The wedge 38 and the third cross bar 37 cooperate to realize the closing and resetting function of the clean water outlet 20. When the box body 12 is in the state of opening the clean water outlet 20, when the box body 12 is located above the lower limit water level, the second cross bar 36 moves upward with the box body 12, and the top of the second cross bar 36 is close to the bottom of the limit rod 32;

[0066] The wedge 38 makes a circular motion along with the reduction gear 85, and the third cross bar 37 moves from bottom to top along with the inclined surface. The wedge 38 generates an upward force on the third cross bar 37, and the third cross bar 37 drives the toggle guide rod 34 to move upward, and the second cross bar 36 at the lower part of the toggle guide rod 34 moves upward. The third cross bar 37 is supported by the inclined surface of the wedge 38 to continue to move upward. When the top of the second cross bar 36 abuts against the bottom of the limit rod 32 and is limited, due to the reverse force of the third cross bar 37, the box body 12 moves downward, and the free end of the guide handle 79 located below the guide handle base 80 abuts and presses on the second traction plate 76. The free end of the guide handle 79 is displaced upward by the reverse force, and under the action of the spring 78, the first plug 70 on the plug guide rod 69 seals the clean water elbow 72. At this time, due to the circular motion of the wedge 38, the third cross bar 37 moves away from the top or inclined surface of the wedge 38, the box body 12 moves upward, and the free end of the guide handle 79 located above the guide handle base 80 abuts and presses on the first traction plate 75. Under the reaction force, the free end of the guide handle 79 moves toward the bottom of the guide handle base 80, driving the second plug 71 on the plug guide rod 69 to move downward to seal the sewage elbow 73, so that the clean water elbow 72 remains unobstructed.

[0067] The wedge 38 and the third cross bar 37 cooperate to realize the closing and resetting function of the clean water outlet 20. When the box body 12 is in the state of opening the clean water outlet 20 and the box body 12 is below the lower limit water level, the wedge 38 moves in a circle with the reduction gear 85, and the third cross bar 37 moves from bottom to top with the inclined surface. The wedge 38 exerts an upward force on the third cross bar 37, and the third cross bar 37 drives the toggle guide rod 34 to move upward. The second traction plate 76 on the toggle guide rod 34 presses the free end of the guide handle 79 upward to make it move upward, and the first plug 70 on the plug guide rod 69 is driven by the spring 78 to seal the clean water elbow 72.

[0068] Figure 1 As shown in the figure, when the motor 13 is working, water flows into the spiral conveying pipe 17 through the conveying pipe inlet 31, and then enters the box 12 through the box water inlet 39. The box water inlet 39 is equipped with a filter screen, and the filtered impurities are collected inside the spiral conveying pipe 17.

[0069] Figure 1 and Fig.12As shown in the figure, the end of the spiral conveying pipe 17 away from the box body 12 is connected to the bellows 18, and the other end of the bellows 18 is connected to the downpipe 22. The downpipe 22 is located outside the rainwater storage tank 11, and one end of the downpipe 22 away from the rainwater storage tank 11 is lower than the height of the spiral conveying pipe 17 (the height difference is greater than 1 meter). The low end of the downpipe 22 is connected to the pressure regulating pipe 24, and the tank body 25 is installed on the pressure regulating pipe 24. The pressure regulating pipe 24 is connected to the tank body water inlet 26, and a one-way valve 88 is installed at the tank body water inlet 26. The tank body outlet 27 on the tank body 25 is connected to the return pipe 23, and the end of the return pipe 23 away from the tank body 25 extends to above the filter 19 in the rainwater storage tank 11; a drain valve 28 is installed at the end of the pressure regulating pipe 24.

[0070] The diameter of the return pipe 23 is smaller than the diameter of the down pipe 22. A detachable filter screen (not shown) is installed on the pressure regulating pipe 24, and the detachable filter screen is located at the front end of the drain valve 28 to achieve timely cleaning and replacement.

[0071] The pipelines and components outside the rainwater storage tank 11 return the water containing impurities flowing out to the filter screen 19 for filtration.

[0072] Working principle of this system:

[0073] First, the box 12 is installed, and the buoyancy of the box 12 is changed by adjusting the volume of the floating block 14, thereby adjusting the depth of the box 12 from the horizontal plane in the rainwater storage tank 11. The box 12 slides up and down along the vertical pole 15 due to the change of the water level through the cooperation of the slider 29 and the slide groove 30;

[0074] Determine the position of the limit rod 32 on the vertical rod 15, first fix the first cross bar 35 on the toggle guide rod 34, slide the box body 12 up and down to adjust the water inlet of the box body 12 to the lower limit depth of water intake; then seal the sewage elbow 73 with the second plug 71, the free end of the guide handle 79 is below the guide handle base 80, and then the top of the second traction plate 76 abuts against the bottom of the free end of the guide handle 79, and then move the limit rod 32 so that the top of the limit rod 32 abuts against the bottom of the first cross bar 35. At this time, the height position of the limit rod 32 on the vertical rod 15 is the lower limit position, and the limit rod 32 is fixed on the vertical rod 15;

[0075] Second, the motor 13 is turned on to drive the main impeller 55 to rotate. After the water flows into the delivery pipe inlet 31, it passes through the water inlet 39 of the box body and then passes through the second guide port 60 to enter the inside of the regulating chamber 46. The driving shaft 61 on the main impeller 55 extends into the gear chamber 45. The driving shaft 61 is transmitted to the spiral shaft 40 through the output gear after the gear assembly is decelerated. The spiral shaft 40 drives the spiral blade 41 to rotate; the spiral blade 41 rotates to transport the accumulated impurities to the pressure regulating pipe 24 assembly outside the rainwater storage tank 11, and then refluxes for filtration and purification;

[0076] Third, the drain valve 28 is in an open state and discharges water outward through the overflow port 87. When the water flow in the sewer pipe 22 impacts the drain valve 28, the drain valve 28 is forced to close the valve flap due to the pressure, and the impact of the water flow from top to bottom forms pressure to open the one-way valve 88 at the water inlet 26 of the tank body, and the water flows into the tank body 25; when the pressure in the pressure regulating pipe 24 is released through the one-way valve 88, the drain valve 28 falls due to the counterweight and is opened, and the drain valve 28 discharges water outward. When the water flow in the sewer pipe 22 impacts the drain valve 28 again, the above steps are repeated to collect water in the tank body 25. When the water level of the tank body 25 is higher than the tank body outlet 27 and the pressure reserve is completed after several impacts, the tank body 25 discharges the water inside through the tank body outlet 27 and extends upward to the top of the filter screen 19 in the rainwater storage tank 11 to filter and purify the water quality; when it is necessary to stop filtering, the overflow port 87 can be closed.

[0077] Fourth, under the action of the guide handle 79 and the spring 78, under normal conditions, the plug guide rod 69 is biased toward the upper end or the lower end, and the first plug 70 at the upper end of the plug guide rod 69 is sealed with the clean water elbow 72 or the second plug 71 at the lower end is sealed with the sewage elbow 73;

[0078] The clean water elbow 72 is opened, the free end of the guide handle 79 is below the guide handle base 80, the second plug 71 and the sewage elbow 73 are closed, the first plug 70 and the clean water elbow 72 are separated, and the water flows out through the clean water elbow 72. When the water level drops, the box 12 drops to a preset lower limit water level with the water level. At this time, the toggle assembly is triggered, the top of the second traction plate 76 abuts the bottom end of the guide handle 79, and the top of the limit rod 32 abuts the bottom of the first cross bar 35. When the water level continues to drop, the box 12 falls with it. This causes the guide handle 79 to be pushed in the opposite direction, and the free end of the guide handle 79 rotates upward around the guide handle rotating shaft 77. When it moves to a position perpendicular to the plug guide rod 69, due to inertia and the force of the contraction of the spring 78, the free end of the guide handle 79 is quickly pulled by the spring 78 to the top of the guide handle base 80. Under the reaction force of the spring 78, the plug guide rod 69 drives the first plug 70 to close the clean water elbow 72, and the second plug 71 is separated from the sewage elbow 73, and the sewage elbow 73 is opened, so that the water flows out after passing through the sewage outlet 21.

[0079] When the water level rises, the box body 12 rises with it. At this time, the bottom of the first traction plate 75 abuts against the top of the free end of the guide handle 79, and the top of the second cross bar 36 abuts against the bottom of the limit rod 32. When the box body 12 continues to move upward, the free end of the guide handle 79 rotates downward around the guide handle shaft 77, and the guide handle 79 is quickly pulled by the spring 78 to the bottom of the guide handle base 80. Under the reaction force of the spring 78, the plug guide rod 69 is pulled downward, and the plug guide rod 69 drives the second plug 71 to close the sewage elbow 73. The first plug 70 and the clean water elbow 72 are separated, so that the clean water elbow 72 is opened, so that rainwater that meets the standards is transported to the utilization area through the clean water elbow 72.

[0080] Fifth, when the water inlet of the box 12 is below the lower limit water level and the clean water outlet 20 of the box 12 is in an open state, the wedge 38 and the third cross bar 37 cooperate to realize the closing and resetting of the clean water outlet 20. The wedge 38 moves in a circle along with the reduction gear 85, and the third cross bar 37 moves from bottom to top along with the inclined surface of the wedge 38. The wedge 38 exerts an upward force on the third cross bar 37, and the third cross bar 37 drives the toggle guide rod 34 to move upward. The second traction plate 76 on the toggle guide rod 34 presses the free end of the guide handle 79 upward to make it move upward, and the first plug 70 on the plug guide rod 69 is driven by the spring 78 to seal the clean water elbow 72.

[0081] When the water inlet of the box 12 is above the lower limit water level and the clean water outlet 20 of the box 12 is in an open state, the second cross bar 36 shifts upward with the box 12, and the top of the second cross bar 36 is close to the bottom of the limit rod 32; the wedge 38 and the third cross bar 37 cooperate to achieve the closing and resetting of the clean water outlet 20.

[0082] The wedge 38 makes a circular motion along with the reduction gear 85, and the third cross bar 37 moves from bottom to top along with the inclined surface of the wedge 38. The wedge 38 generates an upward force on the third cross bar 37, and the third cross bar 37 drives the toggle guide rod 34 to move upward, and the second cross bar 36 at the lower part of the toggle guide rod 34 moves upward. The third cross bar 37 is supported by the inclined surface of the wedge 38 to continue to move upward. When the top of the second cross bar 36 abuts against the bottom of the limit rod 32 and is limited, due to the reverse force of the third cross bar 37, the box body 12 moves downward, and the free end of the guide handle 79 located below the guide handle base 80 abuts and presses on the second traction plate 76. The free end of the guide handle 79 is displaced upward by the reverse force, and under the action of the spring 78, the first plug 70 on the plug guide rod 69 seals the clean water elbow 72. At this time, due to the circular motion of the wedge 38, the third cross bar 37 moves away from the top or inclined surface of the wedge 38, the box body 12 moves upward, and the free end of the guide handle 79 located above the guide handle base 80 abuts and presses against the bottom of the first traction plate 75. Under the reaction force, the free end of the guide handle 79 moves toward the bottom of the guide handle base 80, driving the second plug 71 on the plug guide rod 69 to move downward to seal the sewage elbow 73, so that the clean water elbow 72 is opened, and the flowing water is transported to the utilization area.

[0083] The present invention illustrates the technical concept of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that the relevant improvements to the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. A rainwater intelligent regulation and storage system based on mid-layer water intake, comprising a vertical pole (15) and a limiting sleeve (33) fixedly mounted at the bottom of a rainwater regulation and storage tank (11), a sliding sleeve (16) and a limiting rod (32) being mounted on the upper and lower parts of the vertical pole (15), a box (12) being slidably connected to one side of the sliding sleeve (16), a floating block (14) being mounted on the top of the box (12), the box (12) being a hollow structure, and characterized in that: A transverse partition (49) is installed inside the housing (12) to divide the housing into two chambers. A main impeller chamber (43) and a regulating chamber (46) are formed in one chamber by installing a first longitudinal partition (52), and a secondary impeller chamber (44) and a gear chamber (45) are formed in the other chamber by installing a second longitudinal partition (53). The first longitudinal partition (52) and the second longitudinal partition (53) are both arranged perpendicular to the transverse partition (49). A motor (13) is installed outside a side plate of the main impeller chamber (43) away from the transverse partition (49). A driving shaft (61) at the output end of the motor (13) extends into the main impeller chamber (43). A main impeller (55) is installed on the driving shaft (61). The regulating chamber (46) and the secondary impeller chamber (44) are located outside the main impeller chamber (43). The first longitudinal partition (52) is provided with a second guide port (60), the transverse partition (49) between the main impeller chamber (43) and the auxiliary impeller chamber (44) is provided with a first guide port (59), and the side plate of the auxiliary impeller chamber (44) away from the transverse partition (49) is provided with a box water inlet (39); the driving shaft (61) extends through the transverse partition (49) and extends into the gear chamber (45), and a driving gear (63) is installed on the driving shaft (61) located in the gear chamber (45), and a spiral shaft (40) is installed on the output end of the driving gear (63) after meshing through the gear assembly, and the spiral shaft (40) extends to the outside of the box, and a spiral blade (41) is installed on the spiral shaft (40). ), a spiral conveying pipe (17) is sleeved on the outside of the spiral blade (41), a water inlet (39) of the box body is located inside the spiral conveying pipe (17), and a conveying pipe inlet (31) is opened on the side of the spiral conveying pipe (17) close to the box body (12); a clean water inlet (20) and a sewage inlet (21) are opened on the upper and lower sides of a side plate of the regulating chamber (46), and the clean water inlet (20) and the sewage inlet (21) are arranged vertically opposite to each other in the openings of the regulating chamber (46), and a plug guide rod (69) is provided between the vertical openings, and a first plug (70) and a second plug (71) are respectively installed at both ends of the plug guide rod (69), and the plug guide rod (69) is slidably sleeved on the first limit block (67) and the second limit block (6 8), the ends of the first limit block (67) and the second limit block (68) are fixedly mounted on the side plate; a toggle assembly is installed on one side of the plug guide rod (69), the toggle assembly comprising a guide handle base (80), the guide handle base (80) is located between the plug guide rod (69) and the transverse partition (49), the guide handle base (80) is fixedly mounted on the first longitudinal partition (52), the guide handle (79) is mounted on the guide handle base (80) via the guide handle rotating shaft (77), one end of the guide handle (79) away from the guide handle rotating shaft (77) is connected to the end of the spring (78) via the second spring pin (82), and the other end of the spring (78) is connected to the middle of the plug guide rod (69) via the first spring pin (81);A guide sleeve (74) is installed on a side of the guide handle base (80) away from the plug guide rod (69), a toggle guide rod (34) is slidably provided in the guide sleeve (74), the bottom of the toggle guide rod (34) is slidably arranged in the limit sleeve (33), a first cross bar (35) and a second cross bar (36) are installed on the toggle guide rod (34) near the limit rod (32), the first cross bar (35) and the second cross bar (36) are respectively located at upper and lower positions of the limit rod (32), a third cross bar (75) and a fourth cross bar (76) are installed on the toggle guide rod (34) near the guide handle (79), the third cross bar (75) and the fourth cross bar (76) are respectively located at upper and lower positions of the guide handle (79). ; 2. The rainwater intelligent regulation and storage system based on middle-layer water extraction according to claim 1 is characterized in that: The gear assembly comprises a driving gear (63), a driven gear (64), a first transmission wheel (65) and a second transmission wheel (66); the driving gear (63) meshes with the driven gear (64); the driven gear (64) is mounted on a driven shaft (62); the driven shaft (62) is mounted on two opposite side plates of a gear chamber (45) via bearings; the other end of the driven shaft (62) is mounted with a first transmission gear (65); the first transmission gear (65) meshes with a second transmission gear (66); the second transmission gear (66) is mounted with a screw shaft (40).

3. The intelligent rainwater storage system based on mid-layer water extraction according to claim 1 is characterized in that: An auxiliary impeller (56) is provided inside the auxiliary impeller chamber (44). The auxiliary impeller (56) is arranged perpendicularly to the axis of the main impeller (55). The impeller shaft (54) on the auxiliary impeller (56) extends perpendicularly out of the bottom plate (57) of the box body. A power gear (83) is installed at the end of the impeller shaft (54). The power gear (83) is meshed with an intermediate gear (84). The intermediate gear (84) is meshed with a reduction gear (85). The intermediate gear (84) and the reduction gear (85) are both installed on the outside of the bottom plate (57) via a rotating shaft.

4. The rainwater intelligent regulation and storage system based on mid-layer water extraction according to claim 3 is characterized in that: A suspension rod (86) is fixedly provided on the chassis of the reduction gear (85), and a side of the suspension rod (86) away from the center of the reduction gear (85) is connected to a wedge (38) via a bolt; a third cross bar (37) is installed on a side of the guide rod (34) facing the center of the reduction gear (85), and the third cross bar (37) is located above the bottom plane of the wedge (38).

5. The intelligent rainwater storage system based on mid-layer water extraction according to claim 1 is characterized in that: The sliding sleeve (16) and the box body (12) are connected via a slider (29); a through sliding groove (30) is provided on one side of the sliding sleeve (16) in a vertical direction; a slider (29) is installed in the sliding groove (30); and an end of the slider (29) away from the sliding groove (30) is welded to the box body (12).

6. The rainwater intelligent regulation and storage system based on mid-layer water extraction according to claim 1 is characterized in that: The end of the spiral conveying pipe (17) away from the box body (12) is connected to a bellows (18), and the other end of the bellows (18) is connected to a downpipe (22). The downpipe (22) is located outside the rainwater storage tank (11). One end of the downpipe (22) away from the storage tank (11) is lower than the height of the spiral conveying pipe (17). The lower end of the downpipe (22) is connected to a pressure regulating pipe (24). A tank body (25) is installed on the pressure regulating pipe (24). The pressure pipe (24) is connected to the tank water inlet (26), a one-way valve (88) is installed at the tank water inlet (26), and the tank water outlet (27) on the tank (25) is connected to the return pipe (23), the diameter of the return pipe (23) is smaller than the diameter of the down pipe (22), and the end of the return pipe (23) away from the tank (25) extends to the top of the filter screen (19) in the rainwater storage tank (11); the end of the pressure regulating pipe (24) is installed with a drain valve (28).

7. The rainwater intelligent regulation and storage system based on mid-layer water extraction according to claim 6 is characterized in that: A detachable filter screen is installed on the pressure regulating pipe (24), and the detachable filter screen is located at the front end of the drain valve (28).

8. The rainwater intelligent regulation and storage system based on mid-layer water extraction according to claim 6 is characterized in that: The drain valve (28) is a counterweight drain valve.

9. The rainwater intelligent regulation and storage system based on mid-layer water extraction according to claim 4 is characterized in that: A sliding sleeve is installed at the free end of the third cross bar (37).

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