Drainage blind pipe combined waterproof and drainage structure for local deep pit of basement bottom plate
By combining the drainage blind pipe structure and automatic control, the problems of leakage and water accumulation in the basement floor drainage system were solved, achieving efficient and stable drainage effects.
Patent Information
- Application Number
- CN202510974775.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2025-09-16
AI Technical Summary
Traditional basement slab drainage systems are prone to leakage under complex hydrological conditions and lack automated monitoring and impurity interception, leading to water accumulation and system instability.
A combined drainage blind pipe structure is adopted, including PVC pipes, gravel protection pipes and water flow sensors, combined with automatic water pumps and impurity treatment mechanisms to form a three-dimensional drainage network, realizing automatic monitoring and purification of accumulated water.
It improves the automation level of the drainage system, prevents blockage, ensures timely discharge of accumulated water, enhances waterproof performance and system stability, and reduces maintenance frequency.
Smart Images
Figure CN120649494A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of drainage structures, in particular to a drainage blind pipe combined basement floor local deep pit anti-drainage structure. Background Art
[0002] In the field of building waterproofing and drainage technology, the basement floor, as a key component of underground structures, has a direct impact on the building's service life and safety. Traditional basement floor waterproofing and drainage systems typically utilize a single-layer waterproof structure with a simple drainage ditch design. When dealing with complex hydrological conditions or localized deep pit structures, water seepage and accumulation can easily occur due to cracking in the waterproof layer and a single drainage path. This is particularly true at structural nodes such as the junction of the basement and the cushion layer, and at the transition zone between deep and shallow pits. Existing technologies make it difficult to form a three-dimensional drainage network, resulting in long-term water pressure erosion of the waterproof layer and the risk of leakage.
[0003] Existing drainage systems mostly rely on gravity flow or manual pumping, and have many technical defects: conventional PVC drainage pipes lack a filtering mechanism, and mud and impurities are easily deposited in the pipes, causing blockages, and the pipeline layout is usually limited to a single structural layer, making it impossible to achieve water seepage and drainage between multi-layer structures; traditional water collection well pumping devices lack water level monitoring and automatic start and stop functions, and require manual operation. They are unable to remove accumulated water in time, and there is also the problem of incomplete pumping resulting in residual water at the bottom of the well; at the same time, the drainage system is not equipped with impurity interception and centralized treatment mechanisms, and silt is easy to flow back into the drainage channel. The entire system needs to be shut down for cleaning during maintenance, which seriously affects drainage continuity and system stability. Summary of the Invention
[0004] In response to the shortcomings of the existing technology, the present application provides a drainage blind pipe combined with a local deep pit anti-drainage structure on the basement floor to solve the problem that the above-mentioned traditional water collection well pumping device lacks water level monitoring and automatic start and stop functions, and requires manual operation. It is impossible to remove the accumulated water in time, and there is also the problem of incomplete pumping resulting in residual water at the bottom of the well. At the same time, the drainage system is not equipped with impurity interception and centralized treatment mechanisms, and silt is easy to flow back into the drainage channel. The entire system needs to be shut down for cleaning during maintenance, which seriously affects the drainage continuity and system stability.
[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a drainage blind pipe combined basement floor local deep pit drainage structure, comprising a soil layer, a cushion layer, a floor concrete layer, a polymer cement mortar leveling layer and a concrete protective layer, the cushion layer being laid on the upper surface of the soil layer, the floor concrete layer being laid on the upper surface of the cushion layer, the polymer cement mortar leveling layer being laid on the upper surface of the floor concrete layer, and the concrete protective layer being laid on the upper surface of the polymer cement mortar leveling layer.
[0006] Combined drainage blind pipes are arranged between the cushion layer and the bottom plate concrete layer and between the polymer cement mortar leveling layer and the concrete protective layer. Gravel protection pipes are arranged inside the combined drainage blind pipes, and PVC pipes are inserted into the inner cavities of the gravel protection pipes. The water outlets of the PVC pipes are connected to water pumps. A water flow sensor is arranged on the top of the gravel protection pipes, a PVC pipe is arranged on the top of the inner cavity of the gravel protection pipes, and the sensing end of the PVC pipe is arranged inside the PVC pipes. A water collection well is arranged inside the cushion layer, and a groove adapted to the water collection well is opened on the upper surface of the soil layer.
[0007] The front of the water collection well is connected to an air intake pipe, a water pump is provided at the bottom of the inner cavity of the water collection well, and an air pump is provided at the air intake end of the air intake pipe. Both sides of the inner cavity of the air intake pipe are connected to garbage storage boxes, and a triangular piston plate is slidably connected between the two garbage storage boxes. A slide groove is provided inside the garbage storage box, and a baffle is slidably connected to the inner cavity of the slide groove.
[0008] In this drainage and flooding structure, when water accumulates in a localized pit in the basement floor, it first seeps through gravity into the combined drainage blind pipe between the cushion layer and the base slab concrete layer, and between the polymer cement mortar leveling layer and the concrete cover. The PVC pipe within the combined drainage blind pipe collects the accumulated water through permeable holes in the pipe wall. The accumulated water accumulates within the PVC pipe and, when the water level rises to a certain level, triggers a water flow sensor at the top of the gravel protection pipe.
[0009] The water flow sensor transmits the signal to the water pump, which starts to pump out the accumulated water in the PVC pipe and discharge it through the outlet pipe. The accumulated water flows into the water collection well through the PVC pipe, and the water pump in the water collection well can further lift and discharge the accumulated water. At the same time, the air pump on the intake pipe works, and through the reciprocating motion of the triangular piston plate, it pushes the garbage and other impurities carried by the accumulated water to the garbage storage boxes on both sides, realizing solid-liquid separation and ensuring the smooth flow of the drainage system. This layered combination of drainage blind pipes can effectively collect accumulated water at different levels and improve drainage efficiency. The cooperation between the water collection well and the intake pipe not only achieves efficient drainage, but also can perform preliminary purification of the drainage, reducing the risk of clogging of the drainage system.
[0010] Preferably, the exterior of the combined drainage blind pipe is evenly provided with reinforcing ribs, and the inner cavity of the combined drainage blind pipe is filled with a rubber protective tube, and the inner cavity of the rubber protective tube is connected to the exterior of the PVC tube.
[0011] The uniformly arranged reinforcement ribs on the exterior of the combined drainage blind pipe enhance its compressive strength, making it less susceptible to deformation or damage when subjected to pressure from the soil and the structural layer above, thus ensuring the stability of the drainage channel. The rubber protective tube filled with the inner cavity not only provides a buffering and protective effect for the PVC pipe, reducing the direct impact of external pressure on the PVC pipe, but also provides excellent sealing properties, preventing accumulated water from leaking outside the blind pipe, ensuring that all accumulated water can be discharged through the PVC pipe, further enhancing the drainage effect.
[0012] Preferably, grooves are provided on the tops of the concrete protective layer and the polymer cement mortar leveling layer, and sleeves are embedded in the inner cavities of the grooves, and the inner cavities of the sleeves are connected to the outside of the water collection well by bolts.
[0013] The grooves and embedded casings created in the concrete cover and polymer cement mortar screed provide a stable foundation for the water collection well. Bolting the casing to the outside of the well tightly integrates the well with the entire basement floor structure, ensuring that the well will not shift due to water impact or external forces during drainage. This secure connection ensures that the well can continuously and stably collect and transfer accumulated water, improving the reliability of the entire drainage system.
[0014] Preferably, the inner cavity of the gravel protection tube is filled with slurry, and the interior of the gravel protection tube is hollow.
[0015] The slurry filling the gravel protection tube's interior secures and protects the PVC pipe. Once the slurry solidifies, it firmly secures the PVC pipe within the gravel protection tube, preventing it from shaking or shifting due to the impact of water flow during drainage. The hollow design of the gravel protection tube also creates space for accumulated water to flow around the PVC pipe, allowing it to flow more smoothly through the permeable holes and into the PVC pipe. This also mitigates the effects of external pressure on the PVC pipe, extending its service life and ensuring the long-term stable operation of the drainage system.
[0016] Preferably, the interior of the gravel protection pipe is evenly provided with reinforcing fixing rings, and the reinforcing fixing rings are arranged on the outside of the PVC pipe.
[0017] Reinforced retaining rings, uniformly arranged inside the gravel protection tube, are placed over the exterior of the PVC tube, further strengthening its securement. These rings limit radial displacement of the PVC tube within the gravel protection tube, ensuring it remains stable despite external forces or water flow, ensuring the water collection holes function properly. Furthermore, the rings share some of the external pressure, working together with the gravel protection tube and internal slurry to provide comprehensive protection for the PVC tube and enhance the structural strength and stability of the entire blind drainage system.
[0018] Preferably, a handle is provided on the outside of the baffle, and a rubber sleeve is provided on the outside of the handle. A return spring is provided on the top of the baffle, and the return spring is assembled on the top of the inner cavity of the slide groove.
[0019] A handle on the baffle's exterior facilitates opening and closing, while a rubber sleeve enhances grip comfort and friction, making operation easier. To remove debris from the waste bin, the operator pulls the handle, overcoming the force of the return spring and pulling the baffle out of the chute, allowing for convenient cleaning. Once the bin is cleaned, the handle is released, and the return spring automatically resets the baffle, sealing the bin and preventing debris from re-entering the drainage channel. This design makes bin cleaning more convenient and efficient, ensuring the drainage system remains in optimal working order over the long term.
[0020] Preferably, an inlet pipe is inserted into the inner cavity of the garbage storage box, the inlet end of the inlet pipe is connected to the water outlet of the water pump, the water outlet of the water pump is connected to the outlet pipe, and a pneumatic valve is provided on the outside of the outlet pipe, and the control end of the pneumatic valve is connected to the water pump. After the water pump extracts the accumulated water in the PVC pipe, it transports the accumulated water to the garbage storage box through the inlet pipe. In this process, impurities carried by the accumulated water are intercepted in the garbage storage box, achieving solid-liquid separation. The accumulated water that has undergone preliminary purification flows out of the garbage storage box and enters the outlet pipe through the outlet of the water pump. The pneumatic valve on the outside of the outlet pipe is linked to the water pump. When the water pump starts, the pneumatic valve opens to ensure the smooth discharge of the accumulated water; when the water pump stops working, the pneumatic valve closes to prevent external sewage from backflowing into the drainage system, thereby ensuring the smooth drainage process and the safety of the drainage system.
[0021] Preferably, a water pump bracket is provided at the bottom of the water pump, and the outside of the water pump bracket is connected to the outside of the gravel protection pipe through bolts.
[0022] The pump bracket provides stable support for the sump pump. Bolted to the exterior of the gravel protection pipe, the pump is securely installed in the blind-end drainage system. During operation, the pump bracket effectively reduces the transmission of pump vibration to the blind-end drainage system and the basement floor structure, reducing noise and structural damage. Furthermore, this stable installation ensures the pump maintains efficient and stable operation, improving drainage efficiency and ensuring the reliability of the drainage system.
[0023] Preferably, the cushion layer is made of C15 plain concrete with a thickness of 100 to 150 mm, and the bottom plate concrete layer is made of impermeable concrete.
[0024] The cushion layer is made of C15 plain concrete and is 100-150mm thick. It provides stable foundation support for the basement floor, dissipating pressure from the structural layers above. It also possesses a certain strength and durability, ensuring it will not easily damage during long-term use. The base slab concrete layer is made of impermeable concrete, effectively preventing groundwater from penetrating through the concrete layer into the basement, thus reducing the source of water accumulation. The special formula of impermeable concrete gives it excellent density, capable of withstanding groundwater pressure and preventing leakage. It works in conjunction with the drainage blind pipe system to form a complete "waterproofing and drainage" waterproofing system, greatly improving the waterproofing performance of the basement floor.
[0025] Preferably, the wall of the PVC pipe is evenly provided with water-permeable holes with a diameter of 5 to 8 mm, and the water-permeable holes are distributed in a plum blossom shape. The slurry filled inside the gravel protection pipe is micro-expansive cement mortar. The water-permeable holes with a diameter of 5 to 8 mm, which are evenly provided and distributed in a plum blossom shape on the wall of the PVC pipe, can maximize the contact area with the accumulated water while ensuring the structural strength of the PVC pipe, so that the accumulated water can quickly and evenly enter the PVC pipe through the water-permeable holes, thereby improving the water collection efficiency. The micro-expansive cement mortar filled inside the gravel protection pipe will generate a certain expansion force during the solidification process, tightly wrapping the PVC pipe, not only further fixing the PVC pipe, but also filling the tiny gap between the gravel protection pipe and the PVC pipe, enhancing the sealing of the overall structure, preventing the leakage of accumulated water, and ensuring that all accumulated water is discharged through the PVC pipe, thereby improving the drainage effect and reliability of the drainage blind pipe system.
[0026] In summary, the present application provides a drainage blind pipe combined with a local deep pit anti-drainage structure of a basement floor, which has the following beneficial effects: This blind drainage pipe, combined with a localized deep-pit drainage structure in the basement floor, creates a basement floor drainage system that combines waterproofing, drainage, and anti-clogging capabilities through the coordinated design of a multi-layered waterproof structure and combined blind drainage pipes. Based on a rigid waterproof layer consisting of a basement concrete layer, a polymer cement mortar screed, and a concrete cover, a combined blind drainage pipe is installed between the cushion layer and the basement concrete layer, and between the polymer cement mortar screed and concrete cover. This creates a three-dimensional drainage channel between the different structural layers, effectively channeling seeping water, preventing localized moisture accumulation in the basement floor, and improving waterproofing reliability.
[0027] This drainage blind pipe incorporates a localized deep pit anti-drainage structure in the basement floor. The gravel protection pipe within the blind pipe filters impurities from the water, preventing clogging of the PVC pipe. The pump connected to the PVC pipe outlet, in conjunction with the top water flow sensor, automatically activates pumping when the water level in the sump reaches the warning level. The flow sensor simultaneously controls the valve to close, preventing backflow of accumulated water. This enables automated monitoring and backflow protection of the drainage process, improving the timeliness and safety of the drainage system. The design of the bottom height of the pump in the sump is lower than the PVC pipe outlet, ensuring that accumulated water in the sump is completely drained and prevents any residual water.
[0028] This blind drainage pipe combines a localized deep pit drainage structure in the basement floor with an impurity handling mechanism consisting of an air intake pipe, an air pump, a triangular piston plate, and a baffle. This impurity handling mechanism intercepts impurities as sewage enters through the triangular piston plate. Activating the air pump drives the piston plate, which in turn moves the baffle, directing impurities into a garbage storage bin for collection. This facilitates regular maintenance by staff, effectively preventing pipe blockages and ensuring the long-term smooth operation of the drainage system. The overall structure, through a composite design of multi-layer waterproofing and blind drainage pipes, combined with automated control and impurity interception mechanisms, achieves efficient drainage and waterproofing in localized deep pit scenarios in the basement floor. It combines excellent waterproofing performance, a high degree of drainage automation, strong anti-clogging capabilities, and easy maintenance, effectively resolving water infiltration issues in basements and improving structural durability. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a front schematic diagram of the present invention.
[0030] Figure 2 It is a layered schematic diagram of the present invention.
[0031] Figure 3 It is a partial cross-sectional view of the gravel protection tube of the present invention.
[0032] Figure 4 It is a front schematic diagram of a water collection well of the present invention.
[0033] Figure 5 It is a partial cross-sectional view of the water collection well of the present invention.
[0034] Figure 6 It is a partial cross-sectional view of the garbage storage box of the present invention.
[0035] Description of reference numerals: 1. Soil layer; 2. Cushion layer; 3. Bottom plate concrete layer; 4. Polymer cement mortar leveling layer; 5. Concrete protective layer; 6. Combined drainage blind pipe; 61. Water flow sensor; 62. Water pump; 63. Outlet pipe; 64. Water pump bracket; 7. Water collection well; 71. Air inlet pipe; 72. Garbage storage box; 73. Triangular piston plate; 74. Water inlet end pipe; 75. Chute; 76. Return spring; 77. Baffle; 8. PVC pipe; 9. Gravel protection pipe; 91. Reinforced fixing ring. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0037] This application provides a technical solution, please refer to Figure 1 and Figure 2 A drainage blind pipe combined basement floor local deep pit drainage structure, including a soil layer 1, a cushion layer 2, a floor concrete layer 3, a polymer cement mortar leveling layer 4 and a concrete protective layer 5. The cushion layer 2 is laid on the upper surface of the soil layer 1, the floor concrete layer 3 is laid on the upper surface of the cushion layer 2, the polymer cement mortar leveling layer 4 is laid on the upper surface of the floor concrete layer 3, and the concrete protective layer 5 is laid on the upper surface of the polymer cement mortar leveling layer 4.
[0038] See also Figure 3 、 Figure 4 and Figure 5 Combined drainage blind pipes 6 are arranged between the cushion layer 2 and the bottom plate concrete layer 3 and between the polymer cement mortar leveling layer 4 and the concrete protective layer 5. Gravel protection pipes 9 are arranged inside the combined drainage blind pipes 6, and PVC pipes 8 are inserted into the inner cavities of the gravel protection pipes 9. The water outlets of the PVC pipes 8 are connected to water pumps 62. A water flow sensor 61 is arranged on the top of the gravel protection pipes 9. A PVC pipe 8 is arranged on the top of the inner cavity of the gravel protection pipes 9, and the sensing end of the PVC pipe 8 is arranged inside the PVC pipe 8. A water collection well 7 is arranged inside the cushion layer 2, and a groove adapted to the water collection well 7 is opened on the upper surface of the soil layer 1.
[0039] The front of the water collection well 7 is connected to an air intake pipe 71. A water pump is installed at the bottom of the inner cavity of the water collection well 7, and an air pump is installed at the air intake end of the air intake pipe 71. Garbage storage boxes 72 are connected to both sides of the inner cavity of the air intake pipe 71. A triangular piston plate 73 is slidably connected between the two garbage storage boxes 72. A chute 75 is provided inside the garbage storage box 72, and a baffle 77 is slidably connected to the inner cavity of the chute 75. In this drainage and waterproofing structure, when water accumulates in a local deep pit on the basement floor, the accumulated water will first penetrate into the combined drainage blind pipe 6 between the cushion layer 2 and the bottom slab concrete layer 3 and the polymer cement mortar leveling layer 4 and the concrete protective layer 5 through the action of gravity. The PVC pipe 8 in the combined drainage blind pipe 6 collects the accumulated water through the permeable holes on the pipe wall. The accumulated water gathers in the PVC pipe 8. When the water level rises to a certain height, it triggers the water flow sensor 61 at the top of the gravel protection pipe 9.
[0040] The water flow sensor 61 transmits a signal to the water pump 62, which starts to pump out the accumulated water in the PVC pipe 8 and discharge it through the outlet pipe 63. The accumulated water flows into the water collection well 7 through the PVC pipe 8, and the water pump in the water collection well 7 can further lift and discharge the accumulated water. At the same time, the air pump on the air inlet pipe 71 works, and through the reciprocating motion of the triangular piston plate 73, it pushes the garbage and other impurities carried by the accumulated water to the garbage storage boxes 72 on both sides, realizing solid-liquid separation and ensuring the smooth flow of the drainage system. This layered combination of drainage blind pipes 6 can effectively collect accumulated water at different levels and improve drainage efficiency. The cooperation between the water collection well 7 and the air inlet pipe 71 not only achieves efficient drainage, but also can perform preliminary purification of the drainage, reducing the risk of clogging of the drainage system.
[0041] The outside of the combined drainage blind pipe 6 is evenly provided with reinforcing ribs, and the inner cavity of the combined drainage blind pipe 6 is filled with a rubber protection tube, and the inner cavity of the rubber protection tube is connected to the outside of the PVC pipe 8.
[0042] Combining automated control with impurity interception mechanisms, it achieves efficient drainage and waterproofing in deep pit scenarios on the basement floor. It has the advantages of excellent waterproofing performance, high degree of drainage automation, strong anti-clogging capabilities, and convenient maintenance. It can effectively solve the problem of water infiltration in the basement and improve the durability of the structure.
[0043] Preventing backflow of accumulated water, achieving automated monitoring and backflow protection during the drainage process, and improving the timeliness and safety of the drainage system. The design of the bottom height of the water pump 62 in the water collection well 7 being lower than the pipe mouth of the PVC pipe 8 ensures that the accumulated water in the water collection well 7 is completely pumped out to avoid residual water.
[0044] The uniformly arranged reinforcement ribs on the exterior of the combined drainage blind pipe 6 enhance its compressive strength, making it less susceptible to deformation or damage when subjected to pressure from the soil layer 1 and the structural layer above, thus ensuring the stability of the drainage channel. The rubber protective tube filled with an inner cavity not only provides a buffering and protective effect for the PVC pipe 8, reducing the direct impact of external pressure on the PVC pipe 8, but also provides excellent sealing properties, preventing accumulated water from leaking outside the blind pipe, ensuring that all accumulated water can be discharged through the PVC pipe 8, further enhancing the drainage effect.
[0045] Grooves are provided on the top of the concrete protective layer 5 and the polymer cement mortar leveling layer 4, and a sleeve is embedded in the inner cavity of the groove, and the inner cavity of the sleeve is connected to the outside of the water collection well 7 by bolts. The grooves provided on the top of the concrete protective layer 5 and the polymer cement mortar leveling layer 4 and the embedded sleeve provide a stable installation foundation for the water collection well 7. By connecting the sleeve to the outside of the water collection well 7 with bolts, the water collection well 7 can be tightly combined with the entire basement floor structure, ensuring that the water collection well 7 will not be displaced due to water flow impact or external force during the drainage process. This stable connection method enables the water collection well 7 to continuously and stably play its role in collecting and transferring accumulated water, thereby improving the reliability of the entire drainage system. The inner cavity of the gravel protection pipe 9 is filled with slurry, and the interior of the gravel protection pipe 9 is hollow.
[0046] See also Figure 6 The slurry filled in the inner cavity of the gravel protection tube 9 can fix and protect the PVC tube 8. After the slurry solidifies, the PVC tube 8 can be firmly fixed in the gravel protection tube 9, preventing the PVC tube 8 from shaking or shifting due to the impact of water flow during the drainage process. At the same time, the hollow design of the gravel protection tube 9 provides space for the flow of accumulated water around the PVC tube 8, which is conducive to the smoother flow of accumulated water into the PVC tube 8 through the water permeable holes. It can also buffer the impact of external pressure on the PVC tube 8 to a certain extent, extending the service life of the PVC tube 8 and ensuring the long-term stable operation of the drainage system. The interior of the gravel protection tube 9 is evenly provided with reinforcement fixing rings 91, and the reinforcement fixing rings 91 are set on the outside of the PVC tube 8.
[0047] Reinforced retaining rings 91, uniformly arranged within the gravel protection tube 9, are fitted over the exterior of the PVC tube 8, further strengthening its securement. These rings limit radial displacement of the PVC tube 8 within the gravel protection tube 9, ensuring that it remains stable despite external forces or water flow, ensuring the water-collecting holes function properly. Furthermore, these rings share some of the external pressure, working together with the gravel protection tube 9 and the internal slurry to provide comprehensive protection for the PVC tube 8 and enhance the structural strength and stability of the entire blind drainage system.
[0048] A handle is provided on the outside of the baffle 77 , and a rubber sleeve is provided on the outside of the handle. A return spring 76 is provided on the top of the baffle 77 , and the return spring 76 is assembled on the top of the inner cavity of the slide groove 75 .
[0049] A handle on the outside of baffle 77 facilitates opening and closing. The rubber sleeve enhances grip comfort and friction, making operation easier. To clean debris from bin 72, the operator pulls the handle, overcoming the force of return spring 76 and withdrawing baffle 77 from chute 75, conveniently clearing bin 72. Once cleaned, the operator releases the handle, and return spring 76 automatically resets baffle 77, sealing bin 72 and preventing debris from re-entering the drainage channel. This design makes cleaning bin 72 more convenient and efficient, ensuring the drainage system remains in good working order over the long term.
[0050] An inlet pipe 74 is inserted into the inner cavity of the garbage storage box 72. The water inlet end of the inlet pipe 74 is connected to the water outlet of the water pump 62. The water outlet of the water pump 62 is connected to the outlet pipe 63. A pneumatic valve is provided on the outside of the outlet pipe 63. The control end of the pneumatic valve is connected to the water pump 62.
[0051] After the water pump 62 extracts the accumulated water in the PVC pipe 8, it transports the accumulated water to the garbage storage box 72 through the water inlet pipe 74. During this process, the impurities carried by the accumulated water are intercepted in the garbage storage box 72, achieving solid-liquid separation. The accumulated water that has undergone preliminary purification flows out of the garbage storage box 72 and enters the outlet pipe 63 through the outlet of the water pump 62. The pneumatic valve outside the outlet pipe 63 is linked to the water pump 62. When the water pump 62 starts, the pneumatic valve opens to ensure the smooth discharge of the accumulated water; when the water pump 62 stops working, the pneumatic valve closes to prevent external sewage from backflowing into the drainage system, ensuring the smooth drainage process and the safety of the drainage system.
[0052] A water pump bracket 64 is provided at the bottom of the water pump 62 , and the outside of the water pump bracket 64 is connected to the outside of the gravel protection pipe 9 through bolts.
[0053] Water pump bracket 64 provides stable support for water pump 62. Bolts connect water pump bracket 64 to the exterior of gravel protection tube 9, firmly securing water pump 62 within the blind-end drainage system. During operation, water pump bracket 64 effectively reduces the transmission of vibration from water pump 62 to the blind-end drainage system and the basement floor structure, reducing noise and structural damage caused by vibration. Furthermore, this stable mounting ensures that water pump 62 maintains efficient and stable operation during the pumping process, improving drainage efficiency and ensuring the reliability of the drainage system.
[0054] The cushion layer 2 is made of C15 plain concrete with a thickness of 100 to 150 mm, and the bottom plate concrete layer 3 is made of impermeable concrete.
[0055] Base layer 2, constructed from C15 plain concrete and 100-150mm thick, provides stable foundation support for the basement floor, dissipating pressure from the structural layers above. It also possesses sufficient strength and durability to ensure resistance to damage during long-term use. Base slab concrete layer 3, however, utilizes impermeable concrete to effectively prevent groundwater from penetrating into the basement through it, thus reducing the source of water accumulation. The special formulation of impermeable concrete imparts excellent density, enabling it to withstand groundwater pressure and prevent leakage. It also works in conjunction with the blind drainage system to form a complete "waterproofing and drainage" system, significantly enhancing the waterproofing performance of the basement floor.
[0056] The wall of the PVC pipe 8 is evenly provided with water-permeable holes with a diameter of 5 to 8 mm, and the water-permeable holes are distributed in a plum blossom shape. The slurry filled in the gravel protection pipe 9 is a slightly expansive cement mortar.
[0057] The 5-8mm diameter water holes evenly distributed in a plum blossom pattern on the wall of the PVC pipe 8 maximize the contact area with the accumulated water while ensuring the structural strength of the PVC pipe 8. This allows the accumulated water to quickly and evenly pass through the water holes into the PVC pipe 8, improving water collection efficiency. The micro-expanding cement mortar filled inside the gravel protection pipe 9 generates a certain expansion force during the solidification process, tightly wrapping the PVC pipe 8. This not only further fixes the PVC pipe 8, but also fills the tiny gap between the gravel protection pipe 9 and the PVC pipe 8, enhancing the sealing of the overall structure, preventing accumulated water from leaking, and ensuring that all accumulated water is discharged through the PVC pipe 8, improving the drainage efficiency and reliability of the drainage blind pipe system.
[0058] Before the baseplate is poured, a combined drainage blind pipe 6 is laid on the upper surface of the cushion layer 2 in the localized deep pit area. This blind pipe 6 has small holes in its sides. Its hydrophobic material offers low resistance, strong surface water permeability and internal water flow, excellent compressive strength and deformation adaptability, and excellent chemical inertness for a long lifespan. A water collection well 7 is provided in the baseplate. The contact end of the combined drainage blind pipe 6 with the water collection well 7 is open, facilitating the collection and discharge of collected groundwater into the well 7.
[0059] A gravel protection pipe 9 is laid on the combined drainage blind pipe 6 and covered with geotextile. The excellent water permeability and water filtration performance of the geotextile and gravel are utilized to avoid blockage of the blind pipe. The process is simple and the cost is low.
[0060] Before the construction of the basement floor building surface layer, a rigid waterproof layer is first constructed on the upper surface of the floor concrete for waterproofing, including a floor concrete layer 3, a polymer cement mortar leveling layer 4 and a concrete protective layer 5. The polymer cement mortar leveling layer 4 is arranged on the concrete protective layer 5 material layer.
[0061] A combined drainage blind pipe 6 is laid on the waterproof layer, and a gravel protection pipe 9 is laid on the combined drainage blind pipe 6. The combined drainage blind pipe 6 is connected to the water collection well 7, and finally the bottom plate concrete layer 3 is poured.
[0062] A water flow sensor 61 is provided at the contact end between the gravel protection pipe 9 and the water collection well 7. The water flow sensor 61 and the valve are externally connected to a power supply and a control circuit. When the water flow sensor 61 senses that the water level in the water collection well 7 has reached the warning line, the control circuit transmits a signal to control the valve at the end of the drainage pipe to close, stop drainage and prevent the backflow of accumulated water.
[0063] A water pump 62 is installed in the water collection well 7. The bottom height of the water pump 62 is slightly lower than the pipe mouth height of the PVC pipe 8. The water pump 62 is externally connected to a power control switch. When the water level in the water collection well 7 exceeds the warning line, the water pump 62 is turned on to pump water from the water collection pit.
[0064] When sewage enters the inner cavity of the water collection well 7, the sewage first falls on the top of the triangular piston plate 73. The impurities in the sewage are intercepted by the top of the triangular piston plate 73, and the sewage falls on the bottom of the triangular piston plate 73. The air pump is started and the gas enters the interior of the water collection well 7 through the air inlet pipe 71, driving the triangular piston plate 73 to rise. The triangular piston plate 73 drives the baffle 77 to move, and the impurities enter the interior of the garbage storage box 72 for collection. The staff regularly cleans and maintains the garbage inside the garbage storage box 72.
[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0066] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A drainage blind pipe combined basement floor local deep pit drainage structure, comprising a soil layer (1), a cushion layer (2), a floor concrete layer (3), a polymer cement mortar leveling layer (4) and a concrete protective layer (5), wherein the cushion layer (2) is laid on the upper surface of the soil layer (1), the floor concrete layer (3) is laid on the upper surface of the cushion layer (2), the polymer cement mortar leveling layer (4) is laid on the upper surface of the floor concrete layer (3), and the concrete protective layer (5) is laid on the upper surface of the polymer cement mortar leveling layer (4), characterized in that: A combined drainage blind pipe (6) is provided between the cushion layer (2) and the bottom plate concrete layer (3), and between the polymer cement mortar leveling layer (4) and the concrete protective layer (5); a gravel protection pipe (9) is provided inside the combined drainage blind pipe (6); a PVC pipe (8) is inserted into the inner cavity of the gravel protection pipe (9); a water outlet of the PVC pipe (8) is connected to a water pump (62); a water flow sensor (61) is provided on the top of the gravel protection pipe (9); a PVC pipe (8) is provided on the top of the inner cavity of the gravel protection pipe (9), and a sensing end of the PVC pipe (8) is provided inside the PVC pipe (8); a water collection well (7) is provided inside the cushion layer (2), and a groove adapted to the water collection well (7) is provided on the upper surface of the soil layer (1); The front of the water collecting well (7) is connected to an air intake pipe (71), a water pump is provided at the bottom of the inner cavity of the water collecting well (7), and an air pump is provided at the air intake end of the air intake pipe (71), both sides of the inner cavity of the air intake pipe (71) are connected to garbage storage boxes (72), a triangular piston plate (73) is slidably connected between the two garbage storage boxes (72), a chute (75) is provided inside the garbage storage box (72), and a baffle (77) is slidably connected to the inner cavity of the chute (75).
2. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: The exterior of the combined drainage blind pipe (6) is evenly provided with reinforcing ribs, and the interior cavity of the combined drainage blind pipe (6) is filled with a rubber protective tube, and the interior cavity of the rubber protective tube is connected to the exterior of the PVC pipe (8).
3. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: The tops of the concrete protective layer (5) and the polymer cement mortar leveling layer (4) are both provided with grooves, and the inner cavities of the grooves are embedded with sleeves, and the inner cavities of the sleeves are connected to the outside of the water collection well (7) via bolts.
4. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: The inner cavity of the gravel protection tube (9) is filled with slurry, and the interior of the gravel protection tube (9) is hollow.
5. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: The interior of the gravel protection tube (9) is evenly provided with reinforcement fixing rings (91), and the reinforcement fixing rings (91) are provided on the outside of the PVC tube (8).
6. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: A handle is provided on the outside of the baffle (77), and a rubber sleeve is provided on the outside of the handle. A return spring (76) is provided on the top of the baffle (77), and the return spring (76) is assembled on the top of the inner cavity of the slide groove (75).
7. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: A water inlet pipe (74) is inserted into the inner cavity of the garbage storage box (72), the water inlet end of the water inlet pipe (74) is connected to the water outlet of the water pump (62), the water outlet of the water pump (62) is connected to the water outlet pipe (63), and a pneumatic valve is provided on the outside of the water outlet pipe (63), and the control end of the pneumatic valve is connected to the water pump (62).
8. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: A water pump bracket (64) is provided at the bottom of the water pump (62), and the outside of the water pump bracket (64) is connected to the outside of the gravel protection pipe (9) via bolts.
9. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: The cushion layer (2) is made of C15 plain concrete with a thickness of 100 to 150 mm, and the bottom plate concrete layer (3) is made of impermeable concrete.
10. The drainage blind pipe combined basement floor local deep pit anti-drainage structure according to claim 1, characterized in that: The wall of the PVC pipe (8) is evenly provided with water-permeable holes with a diameter of 5 to 8 mm, and the water-permeable holes are distributed in a plum blossom shape. The slurry filled inside the gravel protection pipe (9) is a micro-expansion cement mortar.