Building basement bottom plate dewatering device

By optimizing the basement floor dewatering system through diversion mechanisms and anchoring devices, the problem of slow drainage caused by uneven construction was solved, achieving rapid drainage and stable installation.

CN224078220UActive Publication Date: 2026-04-03CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing piped dewatering system suffers from uneven building construction, resulting in slow drainage of accumulated water and affecting the efficiency of basement use.

Method used

A flow guiding mechanism is adopted, including a flow guiding pipe and a flow guiding channel. The flow guiding pipe guides the low-level water accumulation into the flow guiding channel and into the dewatering well. Anchor bolts and positioning rings are used to ensure the stability of the pipeline.

Benefits of technology

This speeds up the drainage of water from the basement floor, prevents excessive water accumulation on the ground, and ensures that the basement can be put into use quickly.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224078220U_ABST
    Figure CN224078220U_ABST
Patent Text Reader

Abstract

The utility model discloses a building basement bottom plate dewatering device, which belongs to the field of building drainage structures, and comprises a dewatering well fixedly mounted in a foundation, a well lid fixedly mounted on the dewatering well, a pipeline fixedly mounted on the well lid and communicated with the dewatering well, and a flow guide mechanism fixedly mounted on the pipeline, the flow guide mechanism is fixedly installed on a flow guide pipe circumferentially distributed on the pipeline, a flow guide groove communicated with the pipeline is formed in the flow guide pipe, the forming depth of the flow guide groove is gradually reduced from the end close to the pipeline to the end away from the pipeline, and the top of the flow guide pipe, the surface of the foundation and the top end of the pipeline are arranged in a horizontal state. According to the dewatering device, surface accumulated water with the low water level is drained through the extending flow guide pipe, enters the flow guide groove, automatically flows into the pipeline along the slope face of the flow guide groove and is gathered in the dewatering well to be drained, the dewatering method can effectively accelerate drainage of the accumulated water on the bottom plate of the basement, excessive water accumulation on the ground is avoided, and the basement can be put into use quickly and conveniently.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of building drainage structure technology, specifically a dewatering device for the basement floor slab of a building. Background Technology

[0002] Water accumulation in basement floors is a relatively common building structure problem. Common causes include structural issues with the basement, such as aging or damage to the waterproofing layer, and loose joints, which can lead to seepage. Concrete cracks, settlement cracks, and shrinkage cracks can also provide channels for groundwater to seep in; other causes include rising groundwater levels, capillary action of groundwater, and groundwater seeping into the basement through pores, cracks, and construction joints in the concrete structure.

[0003] To ensure the structural safety of basements, dewatering inlets are usually pre-installed on the basement floor during construction to connect pipes and dewatering wells for drainage. However, since piped dewatering is mostly concentrated at one dewatering point, and the basement floor may have unevenness in some areas due to construction, the basement floor can only drain high-level water into the dewatering wells through pipes. Water at relatively low levels usually needs to seep in naturally over a long period of time. This method prolongs the repair cycle and affects the normal use of the basement, thus having certain shortcomings.

[0004] Therefore, this application provides a dewatering device for the basement floor slab of a building to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a dewatering device for the basement floor slab, aiming to solve the problems mentioned in the background art. Existing pipe dewatering is mostly concentrated at one dewatering point. However, due to construction reasons, some areas of the basement floor may be uneven. This means that the basement floor slab can only drain the water at high water levels into the dewatering well through pipes, while the water at relatively low water levels usually needs to be dewatered naturally through infiltration over a long period of time. This method prolongs the repair cycle, affects the normal use of the basement, and has certain shortcomings.

[0006] To achieve the above objectives, this application provides the following technical solution: a dewatering device for the basement floor slab, comprising a dewatering well fixedly installed in the foundation, a well cover fixedly installed on the dewatering well, a pipe fixedly installed on the well cover and communicating with the dewatering well, and a flow guiding mechanism fixedly installed on the pipe.

[0007] The top of the pipeline is set horizontally to the ground surface;

[0008] The diversion mechanism consists of circumferentially distributed diversion pipes fixedly installed on the pipeline. Each diversion pipe has a diversion channel communicating with the pipeline. The depth of the diversion channel gradually decreases from the end closest to the pipeline to the end furthest from it. The top of the diversion pipe is horizontal to the surface of the foundation and the top of the pipeline. In use, the diversion pipes are welded to the pipeline, and then the pipeline and diversion pipes are buried in the foundation and connected to a dewatering well. When the ground water level rises, the high-water accumulation is discharged sequentially through the pipeline, while the low-water accumulation is diverted through the extended diversion pipes into the diversion channel, flowing along the slope of the channel into the pipeline and finally collected in the dewatering well for discharge. This dewatering method effectively accelerates the drainage of water from the basement floor, prevents excessive water accumulation, and facilitates the rapid use of the basement.

[0009] Preferably, to protect the guide pipe, a cover plate adapted to the guide channel is inserted into the guide pipe. The cover plate has a groove lower than the ground surface, and several evenly distributed perforations are formed in the groove. This further guides surface water into the groove and then into the guide channel through the perforations, stabilizing the water flow.

[0010] Preferably, to prevent moisture backflow, a bracket is fixedly installed on the inner wall of the pipe at a position lower than the guide pipe. A screw is screwed onto the bracket, and a handle is fixedly installed on the end of the screw facing the foundation surface. A sealing plate is fixedly installed on the end of the screw facing the dewatering well, and a sealing gasket adapted to the pipe is fixedly installed on the sealing plate. The sealing gasket seals the bottom end of the pipe, preventing moisture backflow into the dewatering well.

[0011] Preferably, to protect pedestrians, a support ring is fixedly installed on the inner wall of the pipe above the throttle handle. A protective plate, adapted to the pipe and horizontally positioned with respect to the foundation surface, is attached to the support ring. The protective plate has installation and removal holes. This prevents pedestrians from slipping and ensures personnel safety.

[0012] Preferably, to stabilize the pipeline, a plurality of anchor bolts arranged in a circumferential array are fixedly installed on the outer wall of the pipeline. The anchor bolts are inserted into the foundation, and a positioning ring is fixedly installed on the outer wall of the pipeline, which overlaps the manhole cover. This makes the pipeline connection more stable and prevents shaking.

[0013] This dewatering device welds a diversion pipe to a main pipe, then buries the main pipe and diversion pipe in the foundation and connects them to a dewatering well. When the ground water level rises, the high-water accumulation is discharged sequentially through the main pipe, while the low-water accumulation is diverted through the extended diversion pipe into the diversion channel, flowing along the slope of the channel into the main pipe and finally collected in the dewatering well for discharge. This dewatering method can effectively accelerate the drainage of water accumulated on the basement floor, prevent excessive water accumulation on the ground, and facilitate the rapid use of the basement.

[0014] This dewatering device combines the pipe with the manhole cover, with the positioning ring horizontally overlapping the manhole cover to ensure stable pipe installation. During foundation pouring, it is fixed with the anchor rod, making the pipe connection more stable and preventing shaking. Attached Figure Description

[0015] Figure 1 A schematic diagram of the external structure of a dewatering device for the floor slab of a building basement.

[0016] Figure 2 A schematic diagram of the internal structure of a dewatering device for the floor slab of a building basement.

[0017] Figure 3 A schematic cross-sectional view of a dewatering device for the floor slab of a building basement.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide pipe of a dewatering device for the basement floor of a building.

[0019] In the picture:

[0020] 1. Foundation; 2. Dewatering well; 21. Manhole cover; 3. Pipeline; 31. Support; 32. Screw; 33. Turning handle; 34. Sealing plate; 35. Sealing gasket; 36. Anchor bolt; 37. Positioning ring; 38. Protective plate; 39. Disassembly / assembly hole; 310. Support ring; 4. Flow guiding mechanism; 41. Flow guiding pipe; 42. Flow guiding groove; 43. Cover plate; 44. Groove; 45. Leakage hole. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example 1

[0023] This embodiment provides a dewatering device for the basement floor slab of a building, such as Figure 1-4 As shown, the dewatering device includes a dewatering well 2 fixedly installed in the foundation 1, a well cover 21 fixedly installed on the dewatering well 2, a pipe 3 fixedly installed on the well cover 21 and communicating with the dewatering well 2, and a flow guiding mechanism 4 fixedly installed on the pipe 3.

[0024] The top of pipe 3 is set horizontally to the surface of foundation 1;

[0025] The flow guiding mechanism 4 is fixedly installed on the pipe 3 and the flow guiding pipe 41 is circumferentially distributed. The flow guiding pipe 41 is provided with a flow guiding groove 42 that is connected to the pipe 3. The depth of the flow guiding groove 42 gradually decreases from the end near the pipe 3 to the end far away from the pipe 3. The top of the flow guiding pipe 41 is set horizontally with the surface of the foundation 1 and the top of the pipe 3.

[0026] In use, the diversion pipe 41 is welded to the pipe 3, and then the pipe 3 and the diversion pipe 41 are buried in the foundation 1 and connected to the dewatering well 2. When the ground water level rises, the high-water accumulation water is discharged sequentially through the pipe 3, while the low-water accumulation water is diverted through the extended diversion pipe 41 into the diversion channel 42, and flows into the pipe 3 along the slope of the diversion channel 42, and is collected in the dewatering well 2 for discharge. This dewatering method can effectively accelerate the discharge of water accumulation on the basement floor, avoid excessive water accumulation on the ground, and facilitate the rapid use of the basement.

[0027] Specifically, a cover plate 43 adapted to the guide channel 42 is inserted into the guide pipe 41. The cover plate 43 has a groove 44 lower than the surface of the foundation 1, and several evenly distributed drainage holes 45 are formed in the groove 44. In use, the cover plate 43 is installed on the guide pipe 41 with the side of the cover plate 43 with the groove 44 facing upwards, protecting the guide channel 42 in the guide pipe 41 and preventing stones and other debris from entering the guide channel 42 and affecting the water flow. Furthermore, through the recessed groove 44 and drainage holes 45, surface water can be further guided into the groove 44 and then into the guide channel 42 through the drainage holes 45, thus stabilizing the water flow.

[0028] More specifically, a bracket 31 is fixedly installed on the inner wall of pipe 3 at a position lower than that of the guide pipe 41. A screw rod 32 is screwed onto the bracket 31. A handle 33 is fixedly installed on the end of the screw rod 32 facing the surface of the foundation 1, and a sealing plate 34 is fixedly installed on the end of the screw rod 32 facing the dewatering well 2. A sealing gasket 35 adapted to pipe 3 is fixedly installed on the sealing plate 34. When drainage is required, the handle 33 is turned, which drives the screw rod 32 to rotate on the bracket 31, causing the sealing plate 34 to move down, thereby opening the bottom end of pipe 3 and allowing water to flow from the bottom end of pipe 3 into dewatering well 2. When drainage is not required, the handle 33 is reversed, causing the sealing plate 34 to move up and seal the bottom end of pipe 3 through the sealing gasket 35, preventing water from flowing back into dewatering well 2.

[0029] Furthermore, a support ring 310 is fixedly installed on the inner wall of the pipe 3 above the handle 33. A protective plate 38, which is compatible with the pipe 3 and is horizontally positioned with respect to the surface of the foundation 1, is attached to the support ring 310. The protective plate 38 has a disassembly hole 39. In use, when the pipe 3 is not being used for drainage, the protective plate 38 is inserted into the support ring 310 inside the pipe 3 to cover the top of the pipe 3, preventing people from stepping on it and ensuring personnel safety. When the drainage function is needed, the protective plate 38 can be removed through the disassembly hole 39, and then the handle 33 can be turned for easy adjustment and maintenance.

[0030] Furthermore, several anchor bolts 36 arranged in a circumferential array are fixedly installed on the outer wall of the pipe 3. The anchor bolts 36 are inserted into the foundation 1. A positioning ring 37 is fixedly installed on the outer wall of the pipe 3, and the positioning ring 37 overlaps the manhole cover 21. In use, the pipe 3 is combined with the manhole cover 21, and the positioning ring 37 is horizontally overlapped on the manhole cover 21 to ensure the stability of the pipe 3 installation. When the foundation 1 is poured, it is fixed with the anchor bolts 36, thereby making the connection of the pipe 3 more stable and preventing shaking.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A dewatering device for the basement floor slab of a building, comprising a dewatering well (2) fixedly installed in the foundation (1), a well cover (21) fixedly installed on the dewatering well (2), a pipe (3) fixedly installed on the well cover (21) and communicating with the dewatering well (2), and a flow guiding mechanism (4) fixedly installed on the pipe (3), characterized in that: The top end of the pipe (3) is set horizontally to the surface of the foundation (1); The flow guiding mechanism (4) is fixedly installed on the pipe (3) and the flow guiding pipe (41) is circumferentially distributed. The flow guiding pipe (41) is provided with a flow guiding groove (42) connected to the pipe (3). The depth of the flow guiding groove (42) gradually decreases from the end near the pipe (3) to the end far away from the pipe (3). The top of the flow guiding pipe (41) is horizontal with the surface of the foundation (1) and the top of the pipe (3).

2. The dewatering device for the basement floor slab of a building according to claim 1, characterized in that: The guide pipe (41) is fitted with a cover plate (43) that is compatible with the guide groove (42). The cover plate (43) has a groove (44) that is lower than the surface of the foundation (1). The cover plate (43) has a number of evenly distributed holes (45) in the groove (44).

3. The dewatering device for the basement floor slab of a building according to claim 1, characterized in that: A bracket (31) is fixedly installed on the inner wall of the pipe (3) at a position lower than the guide pipe (41). A screw rod (32) is screwed onto the bracket (31). A throttle (33) is fixedly installed on one end of the screw rod (32) facing the surface of the foundation (1). A sealing plate (34) is fixedly installed on one end of the screw rod (32) facing the dewatering well (2). A sealing gasket (35) that is compatible with the pipe (3) is fixedly installed on the sealing plate (34).

4. A dewatering device for the basement floor slab of a building according to claim 3, characterized in that: A support ring (310) is fixedly installed on the inner wall of the pipe (3) above the throttle (33). A protective plate (38) that is compatible with the pipe (3) and is horizontally set with the surface of the foundation (1) is attached to the support ring (310). The protective plate (38) has a disassembly hole (39).

5. A dewatering device for the basement floor slab of a building according to claim 1, characterized in that: Several anchor rods (36) arranged in a circumferential array are fixedly installed on the outer wall of the pipe (3). The anchor rods (36) are inserted into the foundation (1). A positioning ring (37) is fixedly installed on the outer wall of the pipe (3). The positioning ring (37) overlaps the manhole cover (21).