Rainwater drainage device for UHPC prefabricated thin-walled well

Abstract

This invention relates to the field of stormwater drainage devices, and in particular to a stormwater drainage device for UHPC prefabricated thin-walled wells. The device includes a well cover, an upper prefabricated well pipe fixed to the bottom of the well cover, a lower prefabricated well pipe fixed to the bottom of the upper prefabricated well pipe and connected to the foundation pit, and a drainage pipe connected to the groundwater network below the lower prefabricated well pipe. The lower prefabricated well pipe contains a sewage discharge mechanism for diverting or filtering water. This invention utilizes the combined structure of a sewage discharge mechanism, a separation mechanism, a power mechanism, a pulverizing fan, a waste pusher plate, and a separation box. The power mechanism uses the natural power of rainwater flow to precisely drive the separation mechanism. The pulverizing fan, with its strong power, thoroughly crushes debris, which is then orderly pushed by the waste pusher plate and finally discharged smoothly through the sewage pipe. This prevents debris from clogging the thin-walled well, significantly improves drainage efficiency, reduces bacterial growth, and lowers odor generation.

Description

Technical Field

[0001] This invention relates to the field of stormwater drainage devices, and in particular to a stormwater drainage device for a UHPC prefabricated thin-walled well. Background Technology

[0002] UHPC is short for Ultra-High Performance Concrete, and it is the main component material of UHPC precast thin-walled wells. It uses cement, fine aggregate, active powder, water and admixtures as raw materials, and is reinforced with short steel fibers or long fibers. During the production process, the materials are highly dispersed and mixed according to special proportions and through a unique process to form a dense and homogeneous composite material. With its excellent performance, UHPC can be widely used in various well structures in the engineering field and can be made into precast thin-walled wells to meet the engineering needs of different scenarios.

[0003] Existing UHPC precast thin-walled manholes are typically equipped with stormwater drainage devices to quickly drain road surface water and ensure normal passage for pedestrians and vehicles. However, during the rapid drainage process, various debris can easily get mixed in and flow into the manhole along with the rainwater. Over time, these debris accumulate, gradually clogging the manhole and reducing its drainage efficiency. The accumulation of debris can also breed bacteria and produce odors, causing pollution to the surrounding environment. Therefore, we propose a stormwater drainage device for UHPC precast thin-walled manholes. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a stormwater drainage device for UHPC prefabricated thin-walled wells.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A stormwater drainage device for UHPC precast thin-walled wells includes a well cover, an upper precast well pipe fixed to the bottom of the well cover, a lower precast well pipe fixed to the bottom of the upper precast well pipe and connected to the foundation pit, and a drainage pipe connected to the groundwater network pipe below the lower precast well pipe. The lower precast well pipe is equipped with a sewage discharge mechanism for diverting or filtering water. The sewage discharge mechanism can first divert the rainwater flowing into the lower precast well pipe and then separate the diverted water from debris. The sewage discharge mechanism includes a first drainage cylinder fixed inside the lower precast well pipe, a diversion cylinder for diverting rainwater below the first drainage cylinder, two separation boxes for separating rainwater and garbage at the bottom of the diversion cylinder, a separation mechanism for pushing and crushing debris inside the separation box, and a power mechanism below the separation box.

[0007] As a preferred embodiment of the present invention, the separation mechanism includes a pressure plate fixed inside the diversion cylinder and a rotating rod rotating inside the separation box. The bottom of the two separation boxes is fixed with an overflow prevention frame for collecting the separated rainwater. The separation box has several drainage holes to facilitate the passage of rainwater. The outer wall of the rotating rod is fixed with several crushing fans for crushing debris and several waste push plates for pushing debris. The middle of the lower prefabricated well pipe has a debris port adapted to the separation box. The separation box is L-shaped, and the bend of the separation box is beveled. The end of the separation box away from the diversion cylinder is inserted into the debris port. The pressure plate is triangular and is positioned above the two separation boxes. Several crushing fans and several waste push plates are alternately fixed to the outer wall of the rotating rod. The end of the waste push plate away from the rotating rod has several protrusions to increase the friction between the waste push plate and the debris.

[0008] As a preferred embodiment of the present invention, the power mechanism includes two drive rods rotatably mounted on the top of the overflow frame. A main drive wheel is fixed to one end of each drive rod near the overflow frame. A secondary drive wheel is fixed to the outer wall of the rotating rod. A belt connects the secondary drive wheel and the main drive wheel. By rotating the drive rod counterclockwise, the drive rod drives the main drive wheel to rotate counterclockwise. The main drive wheel, via the belt, drives the secondary drive wheel to rotate counterclockwise. The secondary drive wheel drives the rotating rod to rotate counterclockwise. The rotating rod drives the pulverizing fan and the waste pusher plate to rotate counterclockwise. The pulverizing fan crushes large pieces of debris, while the waste pusher plate pushes smaller pieces of debris, pushing the debris inside the separation box to the outside of the separation box, allowing the debris to be discharged into the sewage pipe through the debris outlet.

[0009] As a preferred embodiment of the present invention, a transmission rod is rotatably connected to the bottom of the diverter cylinder. A power wheel is fixed to the bottom of the transmission rod, and a main bevel gear is fixed to the upper half of the transmission rod. A secondary bevel gear that meshes with the main bevel gear is fixed to one side of each of the two drive rods facing each other. The two secondary bevel gears are symmetrically positioned above the main bevel gear. The power wheel is located below the drain hole of the separator. After separation, the rainwater falls into the surface of the water impeller of the power wheel through the drain hole. The power wheel rotates clockwise due to the impact force of the rainwater, causing the power wheel to drive the main bevel gear to rotate clockwise. The main bevel gear drives the secondary bevel gear that meshes with it to rotate counterclockwise.

[0010] As a preferred embodiment of the present invention, the bottom of the overflow prevention frame has an inherent collection frame, the bottom of the collection frame is fixed with a water storage tank, and the bottom of the water storage tank is provided with a water outlet. The collection frame is set as a trapezoidal shape that is wider at the top and narrower at the bottom. Rainwater from the separation box falls into the interior of the collection frame through the drain outlet. The rainwater accumulates inside the collection frame. The pressure of the rainwater is increased by the wider-at-the-top and narrower-at-the-bottom collection frame. The rainwater inside the collection frame is discharged through the water outlet. The pressurized rainwater is used to drive the power wheel to rotate, thereby increasing the rotation speed of the power wheel.

[0011] As a preferred embodiment of the present invention, a drainage funnel is fixed to the bottom of the water storage tank, and a spiral water outlet pipe is fixed to the bottom of the drainage funnel. The drainage funnel is funnel-shaped, and the spiral water outlet pipe is spiral-shaped and positioned above the power wheel. The wider end of the drainage funnel is fixed to the water outlet. Rainwater inside the collection frame flows into the drainage funnel and then into the spiral water outlet pipe. The spiral water outlet pipe discharges the rainwater inside to the upper side of the water impeller blade of the power wheel. The spiral water outlet pipe forms a rotating water flow for the rainwater inside, which can make the water flow more stable and uniform, and reduce turbulence and disturbance in the container.

[0012] As a preferred embodiment of the present invention, two water discharge cylinders are symmetrically fixed at the bottom of the collection frame, and a float is provided on the outer wall of the transmission rod. Two cover plates are rotatably installed on the top of the two water discharge cylinders. A connecting rod is hinged between the float and the two cover plates. The float is made of a material with a density less than water, and several weight-reducing holes are opened on the top of the float. The float is sleeved on the outside of the transmission rod and is located inside the collection frame. When there is heavy rain, rainwater will accumulate inside the collection frame. After the height of the rainwater exceeds the cover plate, the float is buoyed and moves upward. The float drives the connecting rod to move upward, causing the connecting rod to pull the cover plate upward and flip it, so that the cover plate changes from an inclined state to a vertical state, allowing the rainwater inside the collection frame to be discharged through the water discharge cylinders, increasing the drainage speed of the collection frame.

[0013] As a preferred embodiment of the present invention, a sealing block is inserted at the bottom of the water discharge cylinder, a guide plate for guiding rainwater is fixed at the bottom of the sealing block, a support rod is fixed at the top of the sealing block, and a lifting plate is fixed at the top of the support rod. A sliding groove adapted to the lifting plate is opened inside the water discharge cylinder, and a spring is installed inside the sliding groove. When the cover is flipped, the cover pushes the lifting plate downward, and the lifting plate pushes the sealing block downward through the support rod, so that the sealing block moves to the outside of the water discharge cylinder. The sealing block drives the guide plate downward, and the rainwater flows into the area above the guide plate through the water discharge cylinder. The guide plate diverts the rainwater discharged from the water discharge cylinder to prevent the rainwater discharged from the water discharge cylinder from contacting the drive wheel and affecting the working state of the drive wheel.

[0014] As a preferred embodiment of the present invention, a partition plate is fixed inside the first drainage cylinder. Two pressure plates are hinged to the top of the diversion cylinder, and the diversion cylinder is fixed in the middle of the partition plate. A through hole is provided in the middle of the partition plate to facilitate the discharge of rainwater. Torsion springs are provided between the two pressure plates and the diversion cylinder. When the rainfall is small, rainwater flows into the interior of the first drainage cylinder through the manhole cover and is discharged through the through hole into the interior of the drainage pipe. When the rainfall is large, rainwater flows into the interior of the first drainage cylinder through the manhole cover and accumulates above the partition plate. The weight of the rainwater pushes the pressure plate to flip downward, so that the pressure plate changes from a closed state to an open state. The rainwater enters the interior of the diversion cylinder and the pressure plate diverts the rainwater and debris, allowing the rainwater and debris to flow into the interior of the two separation boxes.

[0015] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0016] This invention utilizes a combination of a sewage discharge mechanism, a separation mechanism, a power mechanism, a pulverizing fan, a waste pusher plate, and a separation box. The power mechanism uses the natural power of rainwater flow to precisely drive the separation mechanism. The pulverizing fan, with its strong power, thoroughly crushes the debris, ensuring a significant reduction in the size of the debris. The crushed debris residue is then orderly pushed by the waste pusher plate and finally discharged smoothly through the sewage pipe. This achieves efficient removal of debris and clean discharge of rainwater, effectively preventing debris from clogging the thin-walled well, significantly improving its drainage efficiency, reducing bacterial growth, and reducing odor generation.

[0017] This invention utilizes the combination of a transmission rod, a drive rod, a secondary bevel gear, a main transmission wheel, a secondary transmission wheel, a belt, and a rotating rod to convert the kinetic energy generated by rainwater falling into mechanical power. This fully utilizes the kinetic energy of rainwater, reduces the system's dependence on traditional energy sources, achieves sustainable energy utilization, and lowers operating costs and environmental pollution.

[0018] This invention, through the cooperation of structures such as a collection frame and an overflow prevention frame, and with the help of a collection device that is narrow at the top and wide at the bottom, significantly increases the pressure of rainwater when it is discharged from the outlet, thereby increasing the kinetic energy of the rainwater during the descent process. The enhanced kinetic energy is used to efficiently drive the rotation of the power wheel, thereby significantly increasing the rotation speed of the power wheel, providing strong power support for the efficient collection and discharge of rainwater, and optimizing the operating efficiency of the entire system.

[0019] This invention utilizes a combination of a collection frame, a drainage funnel, a spiral water outlet pipe, and a power wheel. The spiral water outlet pipe causes the internal water flow to form a rotating water flow. This rotating water flow not only makes the water flow more stable and uniform, but also ensures that rainwater can accurately impact the water turbine blades of the power wheel, thereby efficiently driving the power wheel to rotate and providing continuous power support.

[0020] This invention utilizes the combination of a collection frame, a drain pipe, a cover plate, a connecting rod, and a float. When the rainwater level exceeds the cover plate, the float moves upward due to buoyancy, and the connecting rod causes the cover plate to change from an inclined state to a vertical state, allowing the rainwater inside the collection frame to be smoothly discharged through the drain pipe, significantly improving the drainage speed.

[0021] This invention, through the cooperation of structures such as a water discharge cylinder, cover plate, lifting plate, support rod, sealing block, and guide plate, enables the sealing block to precisely and tightly seal the water discharge cylinder, effectively preventing animals such as rats from entering and avoiding them from wantonly gnawing on various parts. This prevents the device from malfunctioning due to damage to parts and ensures that it can always maintain a good operating condition. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the sewage discharge mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the flow divider of the present invention;

[0025] Figure 4 This is a schematic diagram of the separation box of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the drive rod of the present invention;

[0027] Figure 6 This is a schematic diagram of the rotating rod of the present invention;

[0028] Figure 7 This is a schematic diagram of the anti-overflow frame of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the collection frame of the present invention;

[0030] Figure 9 This is a schematic diagram of the spiral water outlet pipe of the present invention;

[0031] Figure 10 This is a schematic diagram of the structure of the partition plate of the present invention;

[0032] Figure 11 This is a schematic diagram of the pressure plate of the present invention;

[0033] Figure 12 This is a schematic diagram of the structure of the float of the present invention;

[0034] Figure 13 This is a schematic diagram of the connecting rod of the present invention;

[0035] Figure 14This is a schematic diagram of the water discharge cylinder of the present invention.

[0036] The components include: 1. Manhole cover; 2. Upper prefabricated manhole pipe; 3. Lower prefabricated manhole pipe; 4. Drainage pipe; 5. Sewage discharge mechanism; 501. First drainage cylinder; 502. Divider plate; 503. Diverter cylinder; 504. Pressure plate; 505. Separation box; 506. Transmission rod; 507. Power wheel; 508. Main bevel gear; 509. Drive rod; 510. Secondary bevel gear; 511. Main transmission wheel; 512. Secondary transmission wheel; 513. Leather... 514. Rotating rod; 515. Crushing fan; 516. Waste pusher plate; 517. Overflow prevention frame; 518. Collection frame; 519. Drainage funnel; 520. Spiral water outlet pipe; 521. Float; 522. Connecting rod; 523. Water discharge cylinder; 524. Cover plate; 525. Guide plate; 526. Sealing block; 527. Support rod; 528. Lifting plate; 529. Spring; 530. Torsion spring; 531. Through hole. Detailed Implementation

[0037] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0038] Example: The present invention provides, as follows Figure 1 The UHPC precast thin-walled well stormwater drainage device shown includes: a well cover 1, an upper precast well pipe 2 fixed to the bottom of the well cover 1, a lower precast well pipe 3 fixed to the bottom of the upper precast well pipe 2 and fixed to the foundation pit, and a drainage pipe 4 connected to the groundwater network pipe is also provided below the lower precast well pipe 3.

[0039] As can be seen from the above, when in use, rainwater enters the interior of the upper prefabricated well pipe 2 after passing through the manhole cover 1, and then flows through the lower prefabricated well pipe 3 into the interior of the drainage pipe 4. The drainage pipe 4 discharges the rainwater inside into the groundwater circulation network.

[0040] refer to Figure 2 , Figure 3 and Figure 4As shown, the lower precast manhole pipe 3 is equipped with a sewage discharge mechanism 5 for diverting or filtering water. The sewage discharge mechanism 5 can first divert the rainwater flowing into the lower precast manhole pipe 3, and then separate the diverted water from the debris. The sewage discharge mechanism 5 includes a first drainage cylinder 501 fixed inside the lower precast manhole pipe 3. Below the first drainage cylinder 501, a diversion cylinder 503 is provided for diverting rainwater. At the bottom of the diversion cylinder 503, two separation boxes 505 are provided for separating rainwater and garbage. Inside the separation box 505, a separation mechanism is provided for pushing and crushing debris. The separation mechanism includes a pressure plate 504 fixed inside the diversion cylinder 503 and a rotating rod 514 rotating inside the separation box 505. The bottom of the two separation boxes 505 is jointly fixed with an overflow prevention frame 517 for collecting the separated rainwater. The interior of the box 505 has several drainage holes to facilitate the passage of rainwater. The outer wall of the rotating rod 514 is fixed with several crushing fans 515 for crushing debris and several waste push plates 516 for pushing debris. The middle of the lower prefabricated well pipe 3 has a debris port that matches the separation box 505. The separation box 505 is L-shaped and the bend of the separation box 505 is beveled. The end of the separation box 505 away from the diversion cylinder 503 is inserted into the debris port. The pressure plate 504 is triangular and is set above the two separation boxes 505. Several crushing fans 515 and several waste push plates 516 are alternately fixed to the outer wall of the rotating rod 514. The end of the waste push plate 516 away from the rotating rod 514 is provided with several protrusions to increase the friction between the waste push plate 516 and the debris.

[0041] refer to Figure 4 , Figure 5 and Figure 6 As shown, a power mechanism is also provided below the separation box 505. The power mechanism includes two drive rods 509 rotatably mounted on the top of the overflow frame 517. A main drive wheel 511 is fixed to one end of each drive rod 509 near the overflow frame 517. A secondary drive wheel 512 is fixed to the outer wall of the rotating rod 514. A belt 513 is provided between the secondary drive wheel 512 and the main drive wheel 511. By rotating the drive rods 509 counterclockwise, the drive rods 509 drive the main drive wheel 511 to rotate counterclockwise. The main drive wheel 511 drives the auxiliary drive wheel 512 to rotate counterclockwise via the belt 513. The auxiliary drive wheel 512 drives the rotating rod 514 to rotate counterclockwise. The rotating rod 514 drives the crushing fan 515 and the waste pusher plate 516 to rotate counterclockwise. The crushing fan 515 crushes large pieces of debris, while the waste pusher plate 516 pushes small pieces of debris, pushing the debris inside the separation box 505 to the outside of the separation box 505, so that the debris is discharged into the sewage pipe through the debris port.

[0042] refer to Figure 6 and Figure 7As shown, a transmission rod 506 is rotatably connected to the bottom of the diverter 503. A power wheel 507 is fixed to the bottom of the transmission rod 506, and a main bevel gear 508 is fixed to the upper half of the transmission rod 506. A secondary bevel gear 510 that meshes with the main bevel gear 508 is fixed to one side of each of the two drive rods 509 facing each other. The two secondary bevel gears 510 are symmetrically positioned above the main bevel gear 508. The power wheel 507 is located below the drain hole of the separator 505. After separation, the rainwater falls into the water impeller surface of the power wheel 507 through the drain hole. The power wheel 507 rotates clockwise due to the impact force of the rainwater, causing the power wheel 507 to drive the main bevel gear 508 to rotate clockwise. The main bevel gear 508 drives the secondary bevel gear 510 that meshes with it to rotate counterclockwise.

[0043] refer to Figure 7 and Figure 8 As shown, the bottom of the overflow frame 517 has a built-in collection frame 518. The bottom of the collection frame 518 is fixed with a water storage tank, and the bottom of the water storage tank has a water outlet. The collection frame 518 is set in a trapezoidal shape that is wider at the top and narrower at the bottom. Rainwater from the separation box 505 falls into the interior of the collection frame 518 through the drain outlet. The rainwater accumulates inside the collection frame 518. The pressure of the rainwater is increased by the wider-at-the-top and narrower-at-the-bottom collection frame 518. The rainwater inside the collection frame 518 is discharged through the water outlet. The pressurized rainwater is used to drive the power wheel 507 to rotate, increasing the rotation speed of the power wheel 507.

[0044] refer to Figure 7 , Figure 8 and Figure 9 As shown, a drainage funnel 519 is fixed at the bottom of the water storage tank, and a spiral water outlet pipe 520 is fixed at the bottom of the drainage funnel 519. The drainage funnel 519 is funnel-shaped, and the spiral water outlet pipe 520 is spiral-shaped. The spiral water outlet pipe 520 is located above the power wheel 507. The wider end of the drainage funnel 519 is fixed to the water outlet. After the rainwater inside the collection frame 518 flows into the drainage funnel 519, it flows into the spiral water outlet pipe 520. The spiral water outlet pipe 520 discharges the rainwater inside to the upper part of the water impeller blade of the power wheel 507. The spiral water outlet pipe 520 forms a rotating water flow for the rainwater inside, which can make the water flow more stable and uniform, and reduce the turbulence and disturbance of the water flow in the container.

[0045] refer to Figure 10 and Figure 11As shown, a partition plate 502 is fixed inside the first drainage cylinder 501. Two pressure plates 504 are hinged to the top of the diversion cylinder 503, and the diversion cylinder 503 is fixed in the middle of the partition plate 502. A through hole 531 for rainwater discharge is also provided in the middle of the partition plate 502. Torsion springs 530 are provided between the two pressure plates 504 and the diversion cylinder 503. When the rainfall is small, rainwater flows into the interior of the first drainage cylinder 501 through the manhole cover 1 and is discharged through the through hole 531 into the interior of the drainage pipe 4. When the rainfall is large, rainwater flows into the interior of the first drainage cylinder 501 through the manhole cover 1 and accumulates above the partition plate 502. The weight of the rainwater pushes the pressure plate 504 to flip downward, so that the pressure plate 504 changes from a closed state to an open state. The rainwater enters the interior of the diversion cylinder 503 and the pressure plate 504 diverts the rainwater and debris, allowing the rainwater and debris to flow into the interior of the two separation boxes 505.

[0046] When the rainfall is light, rainwater flows through the manhole cover 1 into the interior of the first drainage cylinder 501, and then flows out through the through hole 531 into the interior of the drainage pipe 4.

[0047] When rainfall is heavy, rainwater flows through the manhole cover 1 into the first drainage cylinder 501. The rainwater accumulates above the partition plate 502, and the weight of the rainwater pushes the pressure plate 504 downwards, causing it to open from a closed state. The rainwater then enters the diversion cylinder 503, where the pressure plate 504 separates the rainwater from debris, allowing both to flow into the two separation boxes 505. The separated rainwater and debris are then separated by the separation boxes 505. Rainwater enters the collection frame 518 through the drain hole and then the drainage funnel 519 through the outlet. The water from the drainage funnel 519 is discharged through the spiral-shaped drain pipe 520, causing the rainwater to drive the water wheel 507 to rotate. The power wheel 507 is subjected to the impact force of the rainwater. The clockwise rotation causes the power wheel 507 to drive the main bevel gear 508 to rotate clockwise. The main bevel gear 508 drives the meshing secondary bevel gear 510 to rotate counterclockwise. The secondary bevel gear 510 drives the drive rod 509 to rotate counterclockwise. The drive rod 509 drives the main transmission wheel 511 to rotate counterclockwise. The main transmission wheel 511 drives the secondary transmission wheel 512 to rotate counterclockwise via the belt 513. The secondary transmission wheel 512 drives the rotating rod 514 to rotate counterclockwise. The rotating rod 514 drives the crushing fan 515 and the waste pusher plate 516 to rotate counterclockwise. The crushing fan 515 crushes large pieces of debris, while the waste pusher plate 516 pushes small pieces of debris, pushing the debris inside the separation box 505 to the outside of the separation box 505, so that the debris is discharged into the sewage pipe through the debris port.

[0048] refer to Figure 12 and Figure 13As shown, two water discharge cylinders 523 are symmetrically fixed to the bottom of the collection frame 518. A float 521 is also provided on the outer wall of the transmission rod 506. Two cover plates 524 are rotatably mounted on the top of the two water discharge cylinders 523. A connecting rod 522 is hinged between the float 521 and the two cover plates 524. The float 521 is made of a material with a density less than water, and several weight-reducing holes are provided on the top of the float 521. The float 521 is sleeved on the outside of the transmission rod 506, and the float 521... 1. Set inside the collection frame 518, when there is heavy rain, rainwater will accumulate inside the collection frame 518. When the height of the rainwater exceeds the cover plate 524, the float 521 will be buoyed and move upward. The float 521 will drive the connecting rod 522 to move upward, causing the connecting rod 522 to pull the cover plate 524 upward and flip it, so that the cover plate 524 changes from an inclined state to a vertical state, allowing the rainwater inside the collection frame 518 to be discharged through the drain pipe 523, increasing the drainage speed of the collection frame 518.

[0049] refer to Figure 12 , Figure 13 and Figure 14 As shown, a sealing block 526 is inserted into the bottom of the water discharge cylinder 523. A guide plate 525 for guiding rainwater is fixed to the bottom of the sealing block 526. A support rod 527 is fixed to the top of the sealing block 526, and a lifting plate 528 is fixed to the top of the support rod 527. A sliding groove adapted to the lifting plate 528 is opened inside the water discharge cylinder 523, and a spring 529 is installed inside the sliding groove. The length of the guide plate 525 is greater than the diameter of the power wheel 507, and the guide plate 525 is inclined and fixed to the bottom of the sealing block 526. When the cover plate 5... When the cover plate 524 flips, it pushes the lifting plate 528 to move downward. The lifting plate 528 pushes the sealing block 526 downward through the support rod 527, so that the sealing block 526 moves to the outside of the water discharge cylinder 523. The sealing block 526 drives the guide plate 525 to move downward. Rainwater flows through the water discharge cylinder 523 to the top of the guide plate 525. The guide plate 525 diverts the rainwater discharged from the water discharge cylinder 523 to prevent the rainwater discharged from the water discharge cylinder 523 from contacting the power wheel 507 and affecting the working state of the power wheel 507.

[0050] When too much rainwater accumulates inside the collection box 518, and the height of the rainwater exceeds that of the cover plate 524, the float 521 is buoyed and moves upward. The float 521 drives the connecting rod 522 to move upward, causing the connecting rod 522 to pull the cover plate 524 upward and flip it, changing the cover plate 524 from an inclined state to a vertical state. The cover plate 524 pushes the lifting plate 528 downward, and the lifting plate 528 pushes the sealing block 526 downward through the support rod 527, causing the sealing block 526 to move to the outside of the drain cylinder 523. The sealing block 526 drives the guide plate 525 downward, and the rainwater flows through the drain cylinder 523 to the top of the guide plate 525, quickly draining the rainwater inside the collection box 518 and preventing the rainwater from overflowing from the inside of the collection box 518.

[0051] Working principle:

[0052] When rainfall is heavy, rainwater flows through the manhole cover 1 into the first drainage cylinder 501. The rainwater accumulates above the partition plate 502, and the weight of the rainwater pushes the pressure plate 504 downwards, causing it to open from a closed state. The rainwater then enters the diversion cylinder 503, where the pressure plate 504 separates the rainwater from debris, allowing both to flow into the two separation boxes 505. The separated rainwater and debris are then separated by the separation boxes 505. Rainwater enters the collection frame 518 through the drain hole and then the drainage funnel 519 through the outlet. The water from the drainage funnel 519 is discharged through the spiral-shaped drain pipe 520, causing the rainwater to drive the water wheel 507 to rotate. The power wheel 507 is subjected to the impact force of the rainwater. The clockwise rotation causes the power wheel 507 to drive the main bevel gear 508 to rotate clockwise. The main bevel gear 508 drives the meshing secondary bevel gear 510 to rotate counterclockwise. The secondary bevel gear 510 drives the drive rod 509 to rotate counterclockwise. The drive rod 509 drives the main transmission wheel 511 to rotate counterclockwise. The main transmission wheel 511 drives the secondary transmission wheel 512 to rotate counterclockwise via the belt 513. The secondary transmission wheel 512 drives the rotating rod 514 to rotate counterclockwise. The rotating rod 514 drives the crushing fan 515 and the waste pusher plate 516 to rotate counterclockwise. The crushing fan 515 crushes large pieces of debris, while the waste pusher plate 516 pushes small pieces of debris, pushing the debris inside the separation box 505 to the outside of the separation box 505, so that the debris is discharged into the sewage pipe through the debris port.

[0053] When too much rainwater accumulates inside the collection box 518, and the height of the rainwater exceeds that of the cover plate 524, the float 521 is buoyed and moves upward. The float 521 drives the connecting rod 522 to move upward, causing the connecting rod 522 to pull the cover plate 524 upward and flip it, changing the cover plate 524 from an inclined state to a vertical state. The cover plate 524 pushes the lifting plate 528 downward, and the lifting plate 528 pushes the sealing block 526 downward through the support rod 527, causing the sealing block 526 to move to the outside of the drain cylinder 523. The sealing block 526 drives the guide plate 525 downward, and the rainwater flows through the drain cylinder 523 to the top of the guide plate 525, quickly draining the rainwater inside the collection box 518.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A stormwater drainage device for a UHPC precast thin-walled well, comprising a well cover, an upper precast well pipe fixed to the bottom of the well cover, a lower precast well pipe fixed to the bottom of the upper precast well pipe and connected to the foundation pit, and a drainage pipe connected to a groundwater network pipe further disposed below the lower precast well pipe, characterized in that, The lower precast manhole pipe is equipped with a sewage discharge mechanism for diverting or filtering water. The sewage discharge mechanism can first divert the rainwater flowing into the lower precast manhole pipe, and then separate the diverted water and debris. The sewage discharge mechanism includes a first drainage cylinder fixed inside the lower precast manhole pipe. Below the first drainage cylinder is a diversion cylinder for diverting rainwater. At the bottom of the diversion cylinder are two separation boxes for separating rainwater and garbage. Inside the separation box is a separation mechanism for pushing and crushing debris, and below the separation box is a power mechanism. The separation mechanism includes a pressure plate fixed inside the diversion cylinder and a rotating rod rotating inside the separation box. The bottom of the two separation boxes is fixed with an overflow prevention frame for collecting the separated rainwater. The separation box has several drainage holes to facilitate the passage of rainwater. The outer wall of the rotating rod is fixed with several crushing fans for crushing debris and several waste push plates for pushing debris. The power mechanism includes two drive rods rotatably mounted on the top of the overflow frame. A main drive wheel is fixed to one end of each drive rod near the overflow frame. An auxiliary drive wheel is fixed to the outer wall of the rotating rod. A belt is provided between the auxiliary drive wheel and the main drive wheel. The bottom of the diverter is also rotatably connected to a transmission rod, the bottom of which is fixed with a power wheel, and the upper half of the transmission rod is fixed with a main bevel gear. On the opposite side of the two drive rods, there are auxiliary bevel gears that mesh with the main bevel gear. The bottom of the overflow prevention frame has a built-in collection frame, the bottom of the collection frame is fixed with a water storage tank, and the bottom of the water storage tank is provided with a water outlet. The collection frame is set in a trapezoidal shape that is wider at the top and narrower at the bottom. A drainage funnel is fixed to the bottom of the water storage tank, and a spiral water outlet pipe is fixed to the bottom of the drainage funnel. The drainage funnel is funnel-shaped, and the spiral water outlet pipe is spiral-shaped and located above the power wheel. The wider end of the drainage funnel is fixed to the water outlet.

2. The stormwater drainage device for UHPC prefabricated thin-walled wells according to claim 1, characterized in that, The bottom of the collection frame is also symmetrically fixed with two water discharge cylinders, and the outer wall of the transmission rod is also provided with a float. The top of the two water discharge cylinders is rotatably installed with two cover plates, and a connecting rod is hinged between the float and the two cover plates.

3. A stormwater drainage device for a UHPC prefabricated thin-walled well according to claim 2, characterized in that, A sealing block is inserted at the bottom of the water discharge cylinder. A guide plate for guiding rainwater is fixed at the bottom of the sealing block. A support rod is fixed at the top of the sealing block. A lifting plate is fixed at the top of the support rod. A sliding groove adapted to the lifting plate is opened inside the water discharge cylinder, and a spring is installed inside the sliding groove.

4. A stormwater drainage device for a UHPC prefabricated thin-walled well according to claim 3, characterized in that, The first drainage cylinder is also fixed with a partition plate inside. Two pressure plates are hinged to the top of the diversion cylinder, and the diversion cylinder is fixed in the middle of the partition plate. A through hole is also opened in the middle of the partition plate to facilitate the drainage of rainwater. Torsion springs are provided between the two pressure plates and the diversion cylinder.

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