Foundation pit dewatering system
By introducing a three-way regulating valve and a floating scale into the foundation pit dewatering system, the problem of not being able to utilize groundwater resources in existing technologies has been solved, and the stability and convenience of the dust suppression and drainage system during construction have been achieved, thereby improving construction efficiency and safety.
Patent Information
- Application Number
- CN202520549504.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing foundation pit dewatering system fails to effectively utilize groundwater resources, and the dewatering well structure is simple, which makes it impossible to fully utilize groundwater for dust suppression during construction.
A foundation pit dewatering system was designed, including a dewatering well, a dewatering well pipeline connection device, a water pump, a three-way regulating valve, and an atomizing nozzle. The three-way regulating valve enables the dewatering system to achieve multi-functionality, which can reduce dust while lowering the groundwater level. The water level can be observed through a float and a scale, ensuring stable connection and convenient disassembly of the drainage pipe.
It achieved energy conservation, environmental protection, and dust reduction during the foundation pit construction process, ensured the stable connection and convenient disassembly of drainage pipes, and improved construction progress and safety.
Smart Images
Figure CN223951823U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the related technology in the field of engineering construction, in particular to a foundation pit dewatering system. BACKGROUND
[0002] The foundation pit dewatering can make the working face such as foundation pit excavation and support be in dry state, facilitate construction and have advantages such as avoiding water gushing of foundation pit bottom surface and reducing water pressure of foundation pit side wall, etc.; at present, the foundation pit dewatering method is mostly to set up dewatering well for dewatering around the foundation pit or in the full pit, the existing dewatering well structure is simple, generally adopts direct connection of dewatering well through pump station, and the underground water is discharged into municipal sewage well after being pumped out, and the underground water is not fully utilized to participate in construction, therefore, it is necessary to design a foundation pit dewatering system which can dewater and utilize underground water resources. SUMMARY
[0003] The utility model discloses a kind of foundation pit dewatering systems, to solve the problems raised in the above background technology.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A kind of foundation pit dewatering system, including dewatering well, dewatering well pipeline connecting device, water pump, three-way regulating valve, atomizing nozzle and municipal drainage well;The upper portion of the dewatering well is provided with dewatering well pipeline connecting device, and drainage pipe is placed in the dewatering well, the drainage pipe uses rubber hose, each drainage pipe is connected to the input end of water pump by dewatering well pipeline connecting device and multi-port pipe joint, the output end of the water pump is connected with the input end of three-way regulating valve, the other two ports of the three-way regulating valve are connected with the water inlet of atomizing nozzle and municipal drainage well respectively, so as to realize dust fall demand by the adjustment of three-way regulating valve or directly discharge into municipal drainage well.
[0006] As a further scheme of the utility model: the atomizing nozzle can be multiple, and multiple atomizing nozzles are connected in series by pipeline to form a dust fall system, and the pipeline of atomizing nozzle is fixed to the fence around the foundation pit.
[0007] As a further scheme of the utility model: the precipitation well pipeline connecting device includes U-shaped pipe, metal pipe, float, metal well lid, scale, annular baffle, nut and anti-pulling clamping device, the metal pipe is arranged to be inserted in the precipitation well, the metal well lid is arranged at the upper end of the metal pipe, the lower end of the metal well lid is fixedly connected with flange plate, the flange plate is fixedly connected on the outer surface of the metal pipe through binding screw, two through holes are formed in the metal well lid, one end of the U-shaped pipe is connected with one of the through holes, the scale is slidably connected with the other through hole, the scale is fixedly connected with the float at one end located in the metal pipe, the material of the float is polyurethane foam, the underground water level can be known at any time by the construction personnel through the scale and the float, so that the water level of drainage is judged.
[0008] As a further scheme of the utility model: the U-shaped pipe adopts transparent steel wire flexible pipe, is used for penetrating into the drain pipe and makes one end of the drain pipe to be in-depth to the bottom of the metal pipe, the other end of the drain pipe is communicated with the water pump, thereby realizing drainage, the two ports of the U-shaped pipe are downward, can avoid the pollutants to fall into the inside, the annular baffle is welded on the outer surface of one end of the U-shaped pipe, and the annular baffle is provided with screw threads between one end head of the U-shaped pipe, after penetrating through the through hole on the metal well lid, is screw-connected with the nut, the nut cooperates with the annular baffle to make the U-shaped pipe clamping and fixing on the metal well lid, is convenient to disassemble and install, the other end of the U-shaped pipe is fixedly connected with the anti-pulling clamping device.
[0009] As a further scheme of the utility model: the anti-pulling clamping device includes two semicircular clamps, V-shaped elastic sheet, extension arm, tightening band and limiting block, the edges of the two semicircular clamps are connected through bolts to form tubular member, the upper end of the tubular member is connected with the flange of the U-shaped pipe end, the lower end of the tubular member is connected with the drain pipe, the limiting groove is arranged in the inside bottom surface of the two semicircular clamps, the V-shaped elastic sheet is fixedly arranged in the limiting groove, one end of the V-shaped elastic sheet is provided with the extension arm, and the other end of the extension arm is inserted into the corresponding insertion hole of the semicircular clamp and is in contact with the limiting block, the other end of the V-shaped elastic sheet is towards the axis of the tubular member, the limiting block is located on the outside of the semicircular clamp and is fixed through the tightening band, is provided with positioning insertion column thereon and is matched with the semicircular clamp, and the positioning insertion column passes through the insertion hole of the semicircular clamp and presses the V-shaped elastic sheet.
[0010] Compared with the prior art, the utility model has the advantages of:
[0011] The utility model discloses a three -way regulating valve is set up, and the dewatering system of foundation pit can be applied in the dust fall system in construction process, thereby realizing energy -conserving and environment -friendly, in addition, the dewatering well pipeline connecting device structure simple of the utility model is easy to operate, makes the installation and dismounting of drain pipe more convenient, can ensure the safe and stable connection of drain pipe and U type pipe and dewatering well, prevents the unexpected separation of drain pipe in the construction process, through setting up the float and the scale in the dewatering well can conveniently observe the underground water level, and the construction personnel is convenient to judge the water level of underground water correctly, and according to the water level situation, takes the necessary measure, speeds up the construction progress, the tight band and the limit block of design when replacing drain pipe or lastly recycling, by the construction personnel cutting off its tight band, pulls outwards limit block, can pull out drain pipeline, thereby realizes quick dismounting, and convenient overhaul and maintenance. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a kind of foundation pit dewatering system's structural schematic diagram;
[0013] Figure 2 It is a kind of dewatering well 1's connecting device structural schematic diagram in foundation pit dewatering system;
[0014] Figure 3 It is Figure 2 The enlarged structural schematic diagram of place A in it.
[0015] In the drawing: dewatering well 1;Water pump 2;Three-way regulating valve 3;Atomizing spray head 4;Municipal drainage well 5;U type pipe 6;Metal pipe 7;Float 8;Metal well lid 9;Scale 10;Annular baffle 11;Nut 12;V-shaped elastic sheet 13;Limiting groove 14;Extension arm 15;Tight band 16;Limiting block 17;Half-round clamp 18. DETAILED DESCRIPTION
[0016] The technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings of the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0017] Please refer to Figures 1 to 3The utility model discloses an embodiment of a kind of foundation pit dewatering system, including dewatering well 1, dewatering well pipeline connecting device, water pump 2, three-way regulating valve 3, atomizing nozzle 4 and municipal drainage well 5;The upper portion of the dewatering well 1 is provided with dewatering well pipeline connecting device, and drainage pipe is placed in the dewatering well 1, the drainage pipe is generally using rubber tube, each drainage pipe is connected to the input end of water pump 2 by dewatering well pipeline connecting device and multi-way pipe joint, the output end of the water pump 2 is connected with one input end of three-way regulating valve 3, another two ports of the three-way regulating valve 3 are connected with the water inlet of atomizing nozzle 4 and municipal drainage well 5 respectively, so as to realize dust-settling demand by the adjustment of three-way regulating valve 3 or directly discharge into municipal drainage well 5.
[0018] The atomizing nozzle 4 can be multiple, and the multiple atomizing nozzles 4 are connected in series by pipelines to form a dust-settling system.
[0019] The dewatering well pipeline connecting device includes a U-shaped tube 6, a metal pipe 7, a float 8, a metal well lid 9, a scale 10, an annular baffle 11, a nut 12 and a pull-resistant clamping device.
[0020] The metal pipe 7 is inserted into the dewatering well 1. During actual construction, after a deep hole is punched by artificial well-punching equipment, the metal pipe 7 is inserted into the deep hole. The outer surface of the metal pipe 7 and the inner wall of the deep hole can be filled with concrete to solidify the ground around the dewatering well 1 and keep it clean and tidy.
[0021] A metal well lid 9 is arranged at the upper end of the metal pipe 7. The lower end of the metal well lid 9 is fixedly connected with a flange plate, and the flange plate is fixedly connected to the outer surface of the metal pipe 7 by a set screw. Two through holes are formed in the metal well lid 9. One of the through holes is connected with one end of the U-shaped tube 6, and the other through hole is slidably connected with the scale 10. The scale 10 is fixedly connected with the float 8 at one end located in the metal pipe 7. The material of the float 8 is polyurethane foam. The setting of the scale 10 in cooperation with the float 8 can help construction personnel to know the water level of underground water at any time, so as to judge the water level of drainage. Meanwhile, the surface of the scale is coated with a fluorescent material.
[0022] The U-shaped tube 6 is a transparent steel wire hose, which is used to penetrate into the drainage pipe and make one end of the drainage pipe deep into the bottom of the metal pipe 7. The other end of the drainage pipe is communicated with the water pump 2, so as to realize drainage. The two ports of the U-shaped tube 6 are downward, which can avoid pollutants from falling into the inside. An annular baffle 11 is welded on the outer surface of one end of the U-shaped tube 6. A thread is arranged between the annular baffle 11 and the head of one end of the U-shaped tube 6. After penetrating through the through hole of the metal well lid 9, the thread is screwed with the nut 12. The nut 12 cooperates with the annular baffle 11 to clamp and fix the U-shaped tube 6 on the metal well lid 9, which is convenient for dismounting and mounting.
[0023] The other end of the U-shaped pipe 6 is fixedly connected with a pull-resistant clamping device, the pull-resistant clamping device comprises two semicircular clamps 18, a V-shaped elastic sheet 13, an extension arm 15, a tightening belt 16 and a limiting block 17; the edges of the two semicircular clamps 18 are connected by bolts to form a tubular part, the upper end of the tubular part is connected with the flange at the end of the U-shaped pipe 6, the lower end of the tubular part is connected with the drain pipe, and a limiting groove 14 is arranged on the inner bottom surface of the two semicircular clamps 18; the V-shaped elastic sheet 13 is fixedly arranged in the limiting groove 14, one end of the V-shaped elastic sheet 13 is provided with the extension arm 15, one end of the extension arm 15 is inserted into the corresponding insertion hole of the semicircular clamp 18 and is in contact connection with the limiting block 17, and the other end of the V-shaped elastic sheet 13 is directed to the axis of the tubular part; the limiting block 17 is located on the outer side of the semicircular clamp 18 and is fixed by the tightening belt 16, is provided with a positioning insertion column and is matched with the semicircular clamp 18, the positioning insertion column passes through the insertion hole of the semicircular clamp 18 and presses the V-shaped elastic sheet 13, so that the V-shaped elastic sheet 13 clamps the drain pipe.
[0024] Working principle and operation method
[0025] The foundation pit dewatering system is mainly used for lowering the underground water level, keeping the bottom surface of the foundation pit in a water-free state, and will not empty the underground water of the construction area; when more water appears on the bottom surface of the foundation pit and affects the construction, the water pump 2 can be started to use the foundation pit dewatering system, and the excavation or other construction work of the foundation pit is carried out again after the water level is lowered, at this time, the three-way regulating valve 3 can also be adjusted to use the discharged underground water for dust reduction, so that energy saving and environmental protection are realized.
[0026] In the actual construction process, a plurality of dewatering wells 1 are opened around the foundation pit according to the specific conditions of the underground water, and then the underground water is concentrated and discharged by the water pump 2.
[0027] The pull-resistant clamping device is simple in structure, easy to install and operate, can ensure the stable connection of the drain pipe and the U-shaped pipe 6, and can prevent the drain pipe from being accidentally separated; when it is necessary to limit or stretch the drain pipe, the construction personnel fix the limiting block 17 on the outer surface of the semicircular clamp 18 by using the tightening belt 16, the positioning insertion column on the limiting block 17 pushes and presses the V-shaped elastic sheet 13, at this time, the surface of the drain pipe is in contact connection with one end of the V-shaped elastic sheet 13 fixed in the limiting groove 14, when the drain pipe is pulled or stretched accidentally due to external force, the surface of the drain pipe is pulled downward under the action of friction, the extension arm 15 at the other end of the V-shaped elastic sheet 13 is acted on by the limiting block 17, the difficulty of reverse deformation of the V-shaped elastic sheet 13 is increased, so that the effect of resisting pulling is achieved; when it is necessary to disassemble the pipeline, the construction personnel cut the tightening belt 16, pull the limiting block 17 outward, and then the drain pipeline can be pulled out, so that quick disassembly is realized, and maintenance and maintenance are facilitated.
[0028] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A foundation dewatering system comprising a dewatering well (1), a dewatering well piping connection device, a water pump (2), a tee regulator valve (3), an atomizing spray head (4) and a municipal drainage well (5), characterized in that: The upper part of the precipitation well (1) is provided with a precipitation well pipeline connection device, a drainage pipe is placed in the precipitation well (1), the drainage pipe is made of a rubber hose, each drainage pipe is connected to the input end of the water pump (2) through the precipitation well pipeline connection device and a multi-way pipe joint, the output end of the water pump (2) is connected to one input end of the three-way regulating valve (3), the other two ports of the three-way regulating valve (3) are respectively connected to the atomizing nozzle (4) and the water inlet of the municipal drainage well (5).
2. The system according to claim 1, wherein: The atomizing nozzle (4) is a plurality of, and the plurality of atomizing nozzles (4) are connected in series through pipelines to form a dust-settling system, and the pipeline of the atomizing nozzle (4) is fixed to the fence around the foundation pit.
3. The system of claim 1, wherein: The precipitation well pipeline connection device comprises a U-shaped pipe (6), a metal pipe (7), a float (8), a metal well cover (9), a scale (10), an annular baffle (11), a nut (12) and a pull-resistant clamping device; the metal pipe (7) is arranged to be inserted into the precipitation well (1), a metal well cover (9) is arranged at the upper end of the metal pipe (7), the lower end of the metal well cover (9) is fixedly connected with a flange plate, the flange plate is fixedly connected to the outer surface of the metal pipe (7) through a set screw, two through holes are formed in the metal well cover (9), one of the through holes is connected with one end of the U-shaped pipe (6), and the other through hole is slidably connected with the scale (10), and the float (8) is fixedly connected to one end of the scale (10) which is located in the metal pipe (7); the float (8) is made of polyurethane foam, and the surface of the scale (10) is coated with a fluorescent material.
4. The system of claim 3, wherein: The U-shaped pipe (6) is made of a transparent steel wire hose, is used for penetrating into the drainage pipe, and makes one end of the drainage pipe deep into the bottom of the metal pipe (7), the other end of the drainage pipe is communicated with the water pump (2), and the two ports of the U-shaped pipe (6) are downward; the annular baffle (11) is welded to the outer surface of one end of the U-shaped pipe (6), a screw thread is arranged between the annular baffle (11) and the head of one end of the U-shaped pipe (6), and after penetrating through the through hole in the metal well cover (9), the annular baffle (11) is threadedly connected with the nut (12); the other end of the U-shaped pipe (6) is fixedly connected with the pull-resistant clamping device.
5. A dewatering system for a foundation pit according to claim 4, wherein: The anti-pulling clamping device comprises two semicircular clamps (18), a V-shaped elastic sheet (13), a tightening belt (16) and a limiting block (17). The edges of the two semicircular clamps (18) are connected by bolts to form a tubular member, the upper end of the tubular member is connected to the flange of the end of the U-shaped pipe (6), the lower end of the tubular member is connected to the drain pipe, a limiting groove (14) is arranged on the inner bottom surface of the two semicircular clamps (18), the V-shaped elastic sheet (13) is fixedly arranged in the limiting groove (14), one end of the V-shaped elastic sheet (13) is provided with an extension arm (15), one end of the extension arm (15) is inserted into the corresponding insertion hole of the semicircular clamp (18) and is in contact connection with the limiting block (17), the other end of the V-shaped elastic sheet (13) is directed to the axis of the tubular member; the limiting block (17) is located on the outer side of the semicircular clamp (18) and is fixed by the tightening belt (16), is provided with a positioning insertion column thereon and is matched with the semicircular clamp (18), the positioning insertion column passes through the insertion hole of the semicircular clamp (18) and presses the V-shaped elastic sheet (13).