Deep foundation pit drainage pipeline system for rainwater dredging and recycling

Abstract

The invention discloses a deep foundation pit drainage pipeline system for rainwater dredging and recycling, and relates to the technical field of rainwater sewer pipelines, the deep foundation pit drainage pipeline system comprises a collecting tank, a rainwater dredging pipe, a processing tank and a supply pipe which are sequentially connected in series and form a circulation loop, and the rainwater dredging pipe comprises a vertical section dredging pipe and a horizontal section dredging pipe; at least one section of the horizontal section dredging pipe is buried in the deep foundation pit; the horizontal section dredging pipe comprises a plurality of pipe bodies connected in series, annular retention grooves are formed in the inner walls of the pipe bodies, pipeline management assemblies are arranged in the pipe bodies and used for periodically cleaning the retention grooves, manual treatment is almost not needed, and efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater drainage pipes, in particular to a deep foundation pit drainage pipe system for rainwater drainage and reuse. Background Art

[0002] With the acceleration of urbanization, the density of urban buildings continues to increase, and the development and utilization of underground space are becoming increasingly extensive. Deep foundation pit engineering has become an indispensable part of modern urban construction. Among them, rainwater diversion and reuse, as an important part of deep foundation pit drainage systems, are particularly important for improving water resource utilization efficiency and promoting urban sustainable development. However, traditional deep foundation pit drainage systems have the following technical defects, which make it difficult to meet the needs of modern green construction and resource recycling: Existing deep foundation pit drainage systems generally adopt a "direct discharge" design, where rainwater is simply collected and discharged directly to the municipal pipe network or natural water bodies. This linear discharge model lacks integrated treatment and reuse modules, resulting in a large amount of rainwater resources being wasted.

[0003] Furthermore, traditional pipeline designs lack dedicated modules for dynamic silt management. During continuous rainfall, a layer of silt composed of sand, clay, and other debris forms on the inner walls of the pipes. If not promptly removed, the silt will harden after repeated dry-wet cycles, reducing water flow efficiency. Existing systems rely on periodic manual desilting, which is not only costly to maintain but also challenging to manage in deep excavations.

[0004] Furthermore, deep foundation pit drainage pipes often use socket or flange connections, relying on a single mechanical seal to ensure waterproofing. However, under the complex geological conditions of deep foundation pits (such as uneven settlement, construction vibration, and changes in lateral soil pressure), a single seal structure is prone to microcracks caused by stress concentration, increasing the risk of leakage.

[0005] Therefore, it is necessary to provide a deep foundation pit drainage pipe system for rainwater diversion and reuse to solve the above problems. Summary of the Invention

[0006] To solve the above problems, the present invention provides the following technical solution: a deep foundation pit drainage pipe system for rainwater drainage and reuse, comprising a collection trough, a rainwater drainage pipe, a treatment trough, and a supply pipe, which are sequentially connected in series to form a circulation loop. The rainwater drainage pipe includes a vertical drainage pipe section and a horizontal drainage pipe section, and at least one horizontal drainage pipe section is buried in the deep foundation pit; The horizontal section drainage conduit includes a plurality of pipe bodies connected in series, the inner wall of the pipe body is provided with an annular retention groove, and the interior of the pipe body is provided with a pipeline management component for periodically cleaning the retention groove.

[0007] Furthermore, as a preference, one end of the tube body extends axially to form a first extension portion, and the other end extends axially to form a second extension portion, and the first extension portion and the second extension portion constitute a complementary plug-in structure; the outer walls of the joints of the two adjacent tube bodies are provided with an annular groove, and the two arc-shaped clips form a sealing cylinder by clamping the annular grooves of the adjacent tube bodies.

[0008] Furthermore, preferably, after two adjacent tube bodies are connected through the first extension part and the second extension part, an annular filling area is formed at the joint; the arc-shaped clamp is provided with a filling hole at the position corresponding to the filling area for filling the sealing material.

[0009] Furthermore, preferably, the depth of the retention groove is 1 / 5-1 / 3 of the wall thickness of the tube body.

[0010] Furthermore, preferably, a retention ring is provided on one side of the retention tank adjacent to the treatment tank, the retaining ring is fixedly connected to the inner wall of the tube body, and the radial thickness of the retaining ring is equal to the depth of the retention tank.

[0011] Furthermore, preferably, the pipeline management component includes: a first motor, which is fixed inside the tube body by a positioning frame; a rotating rod fixed to an output end of the first motor; a fixed sleeve fixed to the end of the rotating rod, and hingedly connected to the fixed sleeve are a plurality of first connecting members distributed at circumferential intervals; Second connecting members are distributed at intervals around the circumference and are hinged to the rotating rod; A mounting bracket hingedly connected between the corresponding first and second connecting members; a sliding sleeve, which is mounted on the rotating rod and hingedly connected to a plurality of third connecting members corresponding to the second connecting members, wherein one end of the third connecting member away from the sliding sleeve is hingedly connected to the middle of the second connecting member; a spring connected between the fixed sleeve and the sliding sleeve; The mounting frame is also provided with a rotation cleaning component.

[0012] Further, as a preference, the rotary cleaning assembly comprises: A plurality of rotating wheels distributed in a linear array, wherein the rotating wheels are rotatably mounted on the mounting frame; A transmission belt, the transmission sleeve of which is arranged outside the plurality of rotating wheels; A plurality of cylindrical grooves, each of which is correspondingly mounted on one side of the rotating wheel; A second motor for driving the rotating wheel to rotate is also fixed on the mounting frame.

[0013] Furthermore, preferably, a shaft is fixed in the middle of the cylindrical groove, and a plurality of blades arranged in an inclined manner are mounted on the shaft.

[0014] Furthermore, preferably, the cylindrical groove is provided with a plurality of arc-shaped holes penetrating the cylindrical groove and the rotating wheel.

[0015] Compared with the prior art, the present invention provides a deep foundation pit drainage pipe system for rainwater drainage and reuse, which has the following beneficial effects: The present invention integrates rainwater drainage and reuse functions, purifies water quality through treatment tanks, and realizes sustainable utilization of resources.

[0016] In the present invention, the retention tank transforms natural hydrological conditions into system advantages through the "temporary storage-centralized cleaning" mechanism, which not only reduces human intervention but also avoids functional degradation, while simplifying the equipment structure and significantly improving the economy, reliability and maintenance efficiency of the deep foundation pit drainage system.

[0017] In the present invention, the design of the filling area and the filling hole realizes the organic combination of mechanical sealing and chemical sealing, which significantly improves the sealing reliability and structural durability of the pipe body joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a structural diagram of a deep foundation pit drainage pipe system for rainwater drainage and reuse; Figure 2 A schematic diagram of the structure of a rainwater drainage pipe in a deep foundation pit drainage pipe system for rainwater drainage and reuse; Figure 3 A schematic diagram of the structure of a pipe management component in a deep foundation pit drainage pipe system for rainwater diversion and reuse; Figure 4 A schematic diagram of the structure of a rotating cleaning component in a deep foundation pit drainage pipe system for rainwater diversion and reuse; In the figure: 1. Rainwater drainage pipe; 2. Supply pipe; 3. Collection tank; 4. Treatment tank; 5. Pipe management assembly; 11. Pipe body; 12. First extension; 13. Second extension; 14. Arc-shaped clamp; 15. Filling area; 16. Filling hole; 17. Clamping slot; 18. Retention slot; 19. Retention retaining ring; 51. First motor; 52. Positioning frame; 53. Cable; 54. Rotating rod; 55. First connecting member; 56. Second connecting member; 57. Third connecting member; 58. Mounting frame; 59. Rotating cleaning assembly; 510. Spring; 591. Cylindrical slot; 592. Rotating wheel; 593. Second motor; 594. Transmission belt; 595. Blade; 596. Arc-shaped hole. DETAILED DESCRIPTION

[0019] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0020] Example: Please refer to Figure 1-Figure 4 In an embodiment of the present invention, a deep foundation pit drainage pipe system for rainwater drainage and reuse is provided, including a collection tank 3, a rainwater drainage pipe 1, a treatment tank 4 and a supply pipe 2 that are connected in series to form a circulation loop. The rainwater drainage pipe 1 includes a vertical section drainage pipe and a horizontal section drainage pipe, and at least one section of the horizontal section drainage pipe is buried in the deep foundation pit. The horizontal section drainage pipe includes a plurality of pipe bodies 11 connected in series, and the inner wall of the pipe body 11 is provided with an annular retention groove 18, and the pipe body 11 is internally provided with a pipeline management component 5 for periodically cleaning the retention groove 18.

[0021] During implementation, the following processes are included: Rainwater first flows into the collection trough 3, which serves as a preliminary rainwater collection system, gathering rainwater within a certain area. The rainwater in the collection trough 3 is channeled through the rainwater drainage duct 1. The rainwater drainage duct 1 comprises a vertical section drainage duct and a horizontal section drainage duct. Under the action of gravity, rainwater flows from the collection trough 3 through the vertical section drainage duct and the horizontal section drainage duct in sequence. In the horizontal section drainage duct, rainwater flows through multiple series-connected pipes 11 in sequence. Because the inner wall of the pipe 11 is provided with an annular retention trough 18, some impurities in the rainwater (such as silt, small particles, etc.) will gradually settle in the retention trough 18 during the flow. The channeled rainwater enters the treatment trough 4, which further processes the rainwater, such as removing harmful substances from the rainwater and adjusting the water quality, to meet the water quality requirements for subsequent reuse. The treated rainwater is transported to the collection trough 3 or other areas through the supply pipe 2, enabling rainwater reuse.

[0022] During the flow of rainwater, the pipe management component 5 will periodically clean the retention tank 18 to remove impurities deposited in the retention tank 18, prevent the retention tank 18 from being blocked, and ensure the smooth flow of the rainwater drainage pipe 1.

[0023] It should be explained that when the pipe body 11 in the prior art is faced with insufficient water during light rain, the water cannot completely flush out and remove the silt and sand attached to the inner wall of the pipe body 11, which can easily harden and clog the pipe due to long-term accumulation.

[0024] In this embodiment, the annular retention trough 18 provides a fixed temporary storage space, allowing for the collection of dispersed silt in advance. When a rainstorm is expected, the strong scouring force of the rainstorm (in conjunction with the pipe management assembly 5) is utilized to drain the accumulated material in the retention trough 18 directly into the treatment tank 4, transforming passive dredging into active desilting using natural water flow, reducing manual intervention.

[0025] In addition, the pipe body 11 in the prior art does not have a retention groove 18, so the pipe 11 needs to be cleaned frequently (especially after a light rain), which is time-consuming and labor-intensive and can easily lead to hardening and silting due to untimely cleaning.

[0026] In this embodiment, the retention tank 18 implements "rainstorm-driven" periodic cleaning, extending the desilting frequency from "after every light rain" to "during heavy rains," significantly reducing maintenance. Furthermore, the pipe management assembly 5 only requires fixed-point operation and does not need to move along the pipe body 11, simplifying the mechanical structure and reducing equipment failure rate and maintenance costs.

[0027] In this embodiment, one end of the tube body 11 extends axially to form a first extension portion 12, and the other end extends axially to form a second extension portion 13. The first extension portion 12 and the second extension portion 13 constitute a complementary plug-in structure; the outer walls of the joints of the two adjacent tube bodies 11 are provided with an annular groove 17, and the two arc-shaped clips 14 form a sealing cylinder by clamping the annular grooves 17 of the adjacent tube bodies 11.

[0028] When installing the horizontal section of the rainwater drainage pipe 1, two adjacent pipe bodies 11 are docked. Since one end of the pipe body 11 extends axially to form a first extension portion 12, and the other end extends axially to form a second extension portion 13, and the first extension portion 12 and the second extension portion 13 form a complementary plug-in structure, the operator only needs to insert the first extension portion 12 of one pipe body 11 into the second extension portion 13 of the other pipe body 11 to complete the initial positioning and connection.

[0029] After the two adjacent tube bodies 11 are connected, the two arc-shaped clips 14 are respectively inserted into the annular grooves 17 from both sides of the joint. The two arc-shaped clips 14 form a sealing cylinder by clamping the annular grooves 17 of the adjacent tube bodies 11, thereby sealing and reinforcing the joint of the tube bodies 11.

[0030] Furthermore, the arc-shaped clamp 14 is lined with EPDM rubber or fluororubber to improve the acid and alkali corrosion resistance.

[0031] Furthermore, a pressure sensor is embedded in the card slot 17 or the arc-shaped card member 14 to monitor the sealing status in real time and warn of leakage risks.

[0032] Furthermore, after two adjacent tube bodies 11 are plugged into each other through the first extension part 12 and the second extension part 13, an annular filling area 15 is formed at the joint; the arc-shaped clamping member 14 is provided with a filling hole 16 corresponding to the filling area 15 for filling the sealing material.

[0033] Therefore, after two adjacent tubes 11 are connected and the filling area 15 is formed, the two arc-shaped clamping members 14 are respectively inserted into the annular clamping grooves 17 from either side of the joint. At this point, the filling holes 16 provided on the arc-shaped clamping members 14 corresponding to the filling area 15 are exposed. The operator fills the filling area 15 with sealing material, such as sealant or waterproof putty, through the filling holes 16. After the sealing material is fully filled and cured in the filling area 15, it can further improve the sealing performance of the joint between the tubes 11.

[0034] Furthermore, the depth of the retention groove 18 is 1 / 5-1 / 3 of the wall thickness of the tube body 11, and a retention retaining ring 19 is provided on the side of the retention groove 18 adjacent to the treatment tank 4. The retaining ring 19 is fixedly connected to the inner wall of the tube body 11, and the radial thickness of the retaining ring 19 is equal to the depth of the retention groove 18.

[0035] If the depth of the retention groove 18 is too shallow, impurities may easily overflow, while if it is too deep, the structural strength of the pipe body 11 may be weakened. Therefore, the depth of the retention groove 18 should be within a reasonable range to ensure sufficient space to accommodate impurities without significantly affecting the structural strength of the pipe body 11. This size design allows the retention groove 18 to more effectively intercept impurities in rainwater and improve the impurity retention rate.

[0036] The retention ring 19 further enhances the impurity retention effect. The radial thickness of the retention ring 19 is equal to the depth of the retention groove 18, which can form an effective barrier in the direction of rainwater flow, preventing impurities from easily passing through the retention groove 18 and ensuring that more impurities are deposited in the retention groove 18.

[0037] It should also be explained that when the pipe body 11 in the prior art is faced with insufficient water volume during light rain, it is difficult for the water volume to completely flush and carry away the silt and sand attached to the inner wall of the pipe body 11. Long-term accumulation is easy to harden and clog the pipe, and this situation often occurs at the position of the pipe body 11 close to the treatment tank 4. The fundamental reason for this situation is that the carrying power of the water body is insufficient. In this embodiment, a retention tank 18 is provided at a position of the pipe body 11 away from the treatment tank 4 to achieve early interception. In addition, although the retention tank 18 and retention retaining ring 19 can only intercept and temporarily store most of the impurities, a small part of the impurities will pass through the retention tank 18 and the retention retaining ring 19 and adhere to the inner wall of the pipe body 11, but this situation can be dealt with by providing multiple groups of retention tanks 18 and retention retaining rings 19.

[0038] In this embodiment, the pipeline management component 5 includes: A first motor 51 is fixed to the interior of the tube 11 using a positioning bracket 52; a rotating rod 54 fixed to the output end of the first motor 51; A fixed sleeve, which is fixed to the end of the rotating rod 54, and the fixed sleeve is hinged with a plurality of first connecting members 55 distributed at circumferential intervals; Second connecting members 56 are distributed at intervals around the circumference and are hinged to the rotating rod 54; A mounting bracket 58 , which is hinged between the corresponding first connecting member 55 and the second connecting member 56 ; A sliding sleeve is slidably mounted on the rotating rod 54 and is hingedly connected to a plurality of third connecting members 57 corresponding to the second connecting members 56 . An end of the third connecting member 57 away from the sliding sleeve is hingedly connected to the middle of the second connecting member 56 . a spring 510 connected between the fixed sleeve and the sliding sleeve; The mounting frame 58 is further provided with a rotating cleaning assembly 59 .

[0039] When the retention tank 18 needs to be cleaned, the first motor 51 is activated. This drives the rotating rod 54 to rotate. Due to the hinged connection between the first connecting member 55, the second connecting member 56, the mounting bracket 58, the third connecting member 57, and the sliding sleeve, the rotation of the rotating rod 54 causes the mounting bracket 58 to extend radially outward. During the extension process, the sliding sleeve slides along the rotating rod 54, and the spring 510 is stretched, providing a certain degree of cushioning and restoring capacity for the extension of the mounting bracket 58.

[0040] As the mounting frame 58 extends radially, the rotating cleaning assembly 59 mounted thereon gradually approaches the bottom of the retention tank 18 and cleans out impurities, dirt, etc. in the retention tank 18 through the rotational motion.

[0041] After the retention tank 18 is cleaned, the first motor 51 stops rotating. Under the tension of the spring 510, the sliding sleeve slides along the rotating rod 54 toward the fixed sleeve, driving the third connecting member 57 to move, thereby causing the second connecting member 56 and the mounting bracket 58 to contract radially and return to their initial state.

[0042] Specifically, the rotating cleaning assembly 59 includes: A plurality of rotating wheels 592 distributed in a linear array, wherein the rotating wheels 592 are rotatably mounted on the mounting frame 58; A transmission belt 594, which is sleeved on the outside of the plurality of rotating wheels 592; A plurality of cylindrical slots 591 , each of which is mounted on one side of the rotating wheel 592 ; A second motor 593 for driving the rotating wheel 592 to rotate is also fixed on the mounting frame 58 .

[0043] During operation, the mounting frame 58 rotates about the central axis of the tube body 11 driven by the first motor 51, and the rotary cleaning assembly 59 also rotates accordingly, achieving all-round cleaning of the retention tank 18. During the rotation process, the rotating wheel 592 and the cylindrical groove 591 at different positions will sequentially contact different areas of the retention tank 18, ensuring that the entire inner wall is evenly and thoroughly cleaned.

[0044] That is, in this embodiment, the rotational movement of the mounting bracket 58 is combined with the rotation of the rotary cleaning assembly 59 itself, thereby achieving all-round and no-dead-angle cleaning of the retention tank 18.

[0045] Furthermore, a shaft is fixed in the middle of the cylindrical groove 591 , and a plurality of blades 595 arranged in an inclined manner are mounted on the shaft.

[0046] When cylindrical groove 591 rotates, blades 595 spin like a propeller. This rotation generates a certain amount of fluid dynamics. This dynamics can agitate the fluid (such as rainwater) near retention groove 18, making it easier to stir up impurities in the fluid and facilitate subsequent cleaning operations. Furthermore, the rotation of blades 595 can guide the fluid to flow in a specific direction, enhancing the flushing force of the fluid on retention groove 18 and further improving the cleaning effect.

[0047] For example, under the rotation of the blades 595, the fluid may form a series of small vortices or water flows, and these vortices and water flows can impact the dirt and impurities on the retention tank 18 and peel them off from the inner wall.

[0048] Furthermore, the cylindrical groove 591 is provided with a plurality of arc-shaped holes 596 penetrating the cylindrical groove 591 and the rotating wheel 592 .

[0049] The arcuate hole 596 formed in the cylindrical groove 591 plays an important role in cleaning and assisting the rotation process. As the cylindrical groove 591 and the rotating wheel 592 rotate, the arcuate hole 596 moves with them. During this movement, the arcuate hole 596 acts like a "scraper," scraping and cleaning the retention groove 18.

[0050] At the same time, arcuate holes 596 also serve as fluid passages. Under the hydrodynamic force generated by blades 595, fluid can flow through arcuate holes 596 between cylindrical grooves 591 and runner 592, increasing the fluid flow path and velocity, further enhancing the flushing effect on retention tank 18. Furthermore, the design of arcuate holes 596 reduces fluid resistance between rotating cleaning assembly 59 and retention tank 18 during rotation, ensuring smoother rotation.

[0051] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A deep foundation pit drainage pipe system for rainwater drainage and reuse, characterized in that: It comprises a collection tank (3), a rainwater drainage pipe (1), a treatment tank (4), and a supply pipe (2) which are sequentially connected in series to form a circulation loop, wherein the rainwater drainage pipe (1) comprises a vertical drainage pipe section and a horizontal drainage pipe section, and at least one section of the horizontal drainage pipe section is buried in a deep foundation pit; The horizontal section drainage conduit comprises a plurality of pipe bodies (11) connected in series, wherein the inner wall of the pipe body (11) is provided with an annular retention groove (18), and a pipeline management component (5) is configured inside the pipe body (11) for periodically cleaning the retention groove (18).

2. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 1, characterized in that: One end of the tube body (11) extends axially to form a first extension portion (12), and the other end extends axially to form a second extension portion (13), and the first extension portion (12) and the second extension portion (13) constitute a complementary plug-in structure; the outer walls of the butt joints of two adjacent tube bodies (11) are each provided with an annular clamping groove (17), and the two arc-shaped clamping members (14) are clamped to the annular clamping grooves (17) of the adjacent tube bodies (11) to form a sealing cylinder.

3. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 2, characterized in that: After two adjacent tube bodies (11) are plugged into each other through the first extension part (12) and the second extension part (13), an annular filling area (15) is formed at the joint; the arc-shaped clamping member (14) is provided with a filling hole (16) at a position corresponding to the filling area (15) for filling the sealing material.

4. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 1, characterized in that: The depth of the retention groove (18) is 1 / 5-1 / 3 of the wall thickness of the tube body (11).

5. The deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 1, characterized in that: A retention retaining ring (19) is provided on one side of the retention groove (18) adjacent to the treatment groove (4). The retaining ring (19) is fixedly connected to the inner wall of the tube body (11), and the radial thickness of the retaining ring (19) is equal to the depth of the retention groove (18).

6. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 1, characterized in that: The pipeline management component (5) includes: a first motor (51) fixed inside the tube (11) using a positioning frame (52); a rotating rod (54) fixed to the output end of the first motor (51); A fixed sleeve, which is fixed to the end of the rotating rod (54), and a plurality of first connecting members (55) are hingedly connected to the fixed sleeve and distributed at circumferential intervals; Second connecting members (56) are distributed at circumferential intervals and are hinged to the rotating rod (54); A mounting frame (58) hingedly connected between the corresponding first connecting member (55) and the second connecting member (56); A sliding sleeve, which is arranged on the rotating rod (54), and a plurality of third connecting members (57) corresponding to the second connecting member (56) are hinged on the sliding sleeve, and one end of the third connecting member (57) away from the sliding sleeve is hinged to the middle of the second connecting member (56); a spring (510) connected between the fixed sleeve and the sliding sleeve; A rotating cleaning assembly (59) is also provided on the mounting frame (58).

7. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 6, characterized in that: The rotating cleaning assembly (59) comprises: A plurality of rotating wheels (592) distributed in a linear array, wherein the rotating wheels (592) are rotatably mounted on the mounting frame (58); A transmission belt (594), the transmission sleeve of which is arranged outside the plurality of rotating wheels (592); A plurality of cylindrical slots (591), wherein the cylindrical slots (591) are correspondingly mounted on one side of the rotating wheel (592); A second motor (593) for driving the rotating wheel (592) to rotate is also fixed on the mounting frame (58).

8. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 7, characterized in that: A shaft is fixed in the middle of the cylindrical groove (591), and a plurality of blades (595) arranged in an inclined manner are mounted on the shaft.

9. A deep foundation pit drainage pipe system for rainwater drainage and reuse according to claim 7, characterized in that: The cylindrical groove (591) is provided with a plurality of arc-shaped holes (596) that pass through the cylindrical groove (591) and the rotating wheel (592).

Images